/* roulang page: index */
:root {
            --color-primary: #0B1D2C;
            --color-primary-light: #143652;
            --color-surface: #F4F9FC;
            --color-card: #FFFFFF;
            --color-accent: #F26B3A;
            --color-accent-hover: #D9531F;
            --color-ice: #4EA8DE;
            --color-ice-soft: #E3F0F7;
            --color-text: #162B3D;
            --color-text-secondary: #5A6F80;
            --color-border: #D9E6EE;
            --color-bg-hero: #0B1D2C;
            --color-success: #2D9C6E;
            --color-warm: #F5B841;
            --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "HanHei SC", system-ui, sans-serif;
            --font-num: "DIN Alternate", "Oswald", "Barlow Condensed", sans-serif;
            --shadow-sm: 0 2px 12px rgba(11, 29, 44, 0.06);
            --shadow-md: 0 6px 20px rgba(11, 29, 44, 0.12);
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-input: 6px;
            --radius-badge: 999px;
            --radius-side: 10px;
            --section-gap: 96px;
            --section-gap-mobile: 48px;
            --container-max: 1280px;
            --container-pad: 24px;
            --container-pad-mobile: 16px;
            --nav-height: 72px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 18px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-surface);
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: var(--color-ice);
            text-decoration: none;
            transition: color 0.2s ease, text-decoration 0.2s ease;
        }

        a:hover {
            color: var(--color-accent);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(78, 168, 222, 0.45);
            outline-offset: 2px;
            border-radius: 4px;
        }

        button {
            font-family: var(--font-sans);
            cursor: pointer;
            border: none;
            background: none;
            font-size: 16px;
            font-weight: 600;
            transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.15s ease, box-shadow 0.25s ease;
        }

        button:active {
            transform: scale(0.98);
        }

        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 16px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-input);
            padding: 10px 14px;
            background-color: #fff;
            color: var(--color-text);
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
            width: 100%;
        }

        input:focus,
        textarea:focus,
        select:focus {
            border-color: var(--color-ice);
            box-shadow: 0 0 0 3px rgba(78, 168, 222, 0.18);
            outline: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: var(--container-pad);
            padding-right: var(--container-pad);
        }

        .section {
            padding-top: var(--section-gap);
            padding-bottom: var(--section-gap);
        }

        .section-tight {
            padding-top: 60px;
            padding-bottom: 60px;
        }

        .section-alt {
            background-color: #fff;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 12px;
            position: relative;
            padding-left: 18px;
        }

        .section-label::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 10px;
            height: 3px;
            background-color: var(--color-accent);
            border-radius: 2px;
        }

        .section-title {
            font-size: clamp(1.8rem, 4vw, 2.4rem);
            line-height: 1.2;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--color-primary);
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 18px;
            line-height: 1.8;
            color: var(--color-text-secondary);
            margin-bottom: 40px;
            max-width: 760px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            letter-spacing: -0.01em;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.25;
        }

        h1 {
            font-size: clamp(2.4rem, 6vw, 4rem);
            line-height: 1.1;
            font-weight: 800;
        }

        h2 {
            font-size: clamp(1.8rem, 4vw, 2.4rem);
            line-height: 1.2;
            font-weight: 700;
        }

        h3 {
            font-size: clamp(1.25rem, 3vw, 1.6rem);
            line-height: 1.3;
            font-weight: 650;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 16px;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.15s ease, box-shadow 0.25s ease;
            text-decoration: none;
            white-space: nowrap;
            line-height: 1.4;
        }

        .btn:hover {
            transform: translateY(-2px);
            text-decoration: none;
        }

        .btn:active {
            transform: translateY(0) scale(0.98);
        }

        .btn-primary {
            background-color: var(--color-accent);
            color: #fff;
            border: 2px solid var(--color-accent);
        }

        .btn-primary:hover {
            background-color: var(--color-accent-hover);
            border-color: var(--color-accent-hover);
            color: #fff;
            box-shadow: 0 4px 14px rgba(242, 107, 58, 0.35);
        }

        .btn-ghost-light {
            background-color: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.55);
        }

        .btn-ghost-light:hover {
            background-color: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
        }

        .btn-ghost-dark {
            background-color: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
        }

        .btn-ghost-dark:hover {
            background-color: var(--color-primary);
            color: #fff;
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
            border-radius: 6px;
        }

        .btn-lg {
            padding: 16px 32px;
            font-size: 18px;
        }

        .btn-link {
            color: var(--color-accent);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 0;
            background: none;
            border: none;
            font-size: 15px;
            transition: color 0.2s ease;
        }

        .btn-link .arrow {
            transition: transform 0.25s ease;
        }

        .btn-link:hover {
            color: var(--color-accent-hover);
        }

        .btn-link:hover .arrow {
            transform: translateX(4px);
        }

        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            font-size: 13px;
            font-weight: 500;
            line-height: 1.5;
            letter-spacing: 0.02em;
        }

        .badge-accent {
            background-color: var(--color-accent);
            color: #fff;
        }

        .badge-ice {
            background-color: var(--color-ice-soft);
            color: var(--color-primary);
            border: 1px solid var(--color-ice);
        }

        .badge-warm {
            background-color: rgba(245, 184, 65, 0.2);
            color: #8B6B1F;
        }

        .badge-success {
            background-color: rgba(45, 156, 110, 0.15);
            color: var(--color-success);
        }

        .tag {
            display: inline-block;
            padding: 4px 10px;
            border-radius: var(--radius-badge);
            font-size: 13px;
            font-weight: 500;
            background-color: var(--color-ice-soft);
            color: var(--color-primary);
            border: 1px solid var(--color-border);
            cursor: pointer;
            transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
        }

        .tag:hover,
        .tag.active {
            background-color: var(--color-accent);
            color: #fff;
            border-color: var(--color-accent);
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--nav-height);
            background-color: var(--color-primary);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 2px 12px rgba(11, 29, 44, 0.15);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 16px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            text-decoration: none;
            flex-shrink: 0;
        }

        .nav-logo svg {
            width: 38px;
            height: 38px;
            flex-shrink: 0;
        }

        .nav-logo-text {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: #fff;
            line-height: 1.2;
        }

        .nav-logo-text span {
            color: var(--color-accent);
        }

        .nav-channels {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-channels::-webkit-scrollbar {
            display: none;
        }

        .nav-channels a {
            color: rgba(255, 255, 255, 0.78);
            text-decoration: none;
            font-size: 15px;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 6px;
            white-space: nowrap;
            transition: color 0.2s ease, background-color 0.2s ease;
            letter-spacing: 0.01em;
        }

        .nav-channels a:hover {
            color: #fff;
            background-color: rgba(255, 255, 255, 0.1);
        }

        .nav-channels a.active {
            color: #fff;
            background-color: rgba(242, 107, 58, 0.25);
            font-weight: 600;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-search {
            position: relative;
            display: flex;
            align-items: center;
        }

        .nav-search input {
            width: 170px;
            height: 38px;
            background-color: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 20px;
            color: #fff;
            font-size: 14px;
            padding: 0 34px 0 16px;
            transition: width 0.3s ease, background-color 0.25s ease, border-color 0.25s ease;
        }

        .nav-search input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .nav-search input:focus {
            width: 220px;
            background-color: rgba(255, 255, 255, 0.16);
            border-color: var(--color-ice);
            box-shadow: 0 0 0 3px rgba(78, 168, 222, 0.22);
            outline: none;
        }

        .nav-search-icon {
            position: absolute;
            right: 12px;
            color: rgba(255, 255, 255, 0.6);
            pointer-events: none;
            display: flex;
            align-items: center;
        }

        .nav-btn-login {
            padding: 8px 16px;
            border-radius: 20px;
            border: 1.5px solid rgba(255, 255, 255, 0.45);
            color: #fff;
            font-size: 14px;
            font-weight: 500;
            background: transparent;
            transition: border-color 0.25s ease, background-color 0.25s ease;
            white-space: nowrap;
        }

        .nav-btn-login:hover {
            border-color: #fff;
            background-color: rgba(255, 255, 255, 0.1);
        }

        .nav-btn-publish {
            padding: 8px 18px;
            border-radius: 20px;
            background-color: var(--color-accent);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 4px;
            white-space: nowrap;
            transition: background-color 0.25s ease;
        }

        .nav-btn-publish:hover {
            background-color: var(--color-accent-hover);
        }

        .nav-hamburger {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.2);
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 4px;
            cursor: pointer;
        }

        .nav-hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background-color: #fff;
            border-radius: 2px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }

        .nav-hamburger.open span:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }
        .nav-hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-hamburger.open span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background-color: var(--color-primary);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 12px 28px rgba(11, 29, 44, 0.3);
            z-index: 999;
            padding: 16px 20px 24px;
            flex-direction: column;
            gap: 10px;
        }

        .mobile-drawer.open {
            display: flex;
        }

        .mobile-drawer a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 16px;
            font-weight: 500;
            padding: 10px 12px;
            border-radius: 8px;
            text-decoration: none;
            transition: background-color 0.2s ease, color 0.2s ease;
        }

        .mobile-drawer a:hover,
        .mobile-drawer a.active {
            background-color: rgba(255, 255, 255, 0.1);
            color: #fff;
        }

        /* ============ HERO ============ */
        .hero {
            position: relative;
            background-color: var(--color-bg-hero);
            background-image: radial-gradient(ellipse at 30% 20%, #143652 0%, #0B1D2C 70%);
            min-height: 680px;
            display: flex;
            align-items: center;
            padding: 120px 0 100px;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            pointer-events: none;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 70px;
            background: var(--color-surface);
            clip-path: ellipse(70% 100% at 50% 100%);
            pointer-events: none;
        }

        .hero-speed-line {
            position: absolute;
            height: 1.5px;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.14), transparent);
            border-radius: 2px;
            pointer-events: none;
        }

        .hero-speed-line:nth-of-type(1) {
            top: 18%;
            left: -10%;
            width: 55%;
            transform: rotate(-12deg);
        }
        .hero-speed-line:nth-of-type(2) {
            top: 55%;
            right: -8%;
            width: 45%;
            transform: rotate(8deg);
        }
        .hero-speed-line:nth-of-type(3) {
            bottom: 15%;
            left: 20%;
            width: 35%;
            transform: rotate(-4deg);
        }

        .hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            width: 100%;
        }

        .hero-content {
            color: #fff;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(242, 107, 58, 0.18);
            border: 1px solid rgba(242, 107, 58, 0.5);
            color: #FFB8A0;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 20px;
            letter-spacing: 0.04em;
        }

        .hero-badge .dot-pulse {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--color-accent);
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.5);
            }
        }

        .hero h1 {
            color: #fff;
            margin-bottom: 20px;
            font-size: clamp(2.2rem, 5.5vw, 3.8rem);
            line-height: 1.1;
        }

        .hero-subtitle {
            font-size: 20px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.82);
            margin-bottom: 30px;
            max-width: 540px;
        }

        .hero-cta {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 36px;
        }

        .hero-trust {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }

        .hero-trust-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-trust-num {
            font-family: var(--font-num);
            font-size: clamp(1.8rem, 3.5vw, 2.4rem);
            font-weight: 700;
            color: #fff;
            line-height: 1.1;
        }

        .hero-trust-num span {
            color: var(--color-accent);
            font-size: 0.65em;
            margin-right: 2px;
        }

        .hero-trust-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            font-weight: 500;
        }

        .hero-visual {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 24px;
        }

        .countdown-wrap {
            text-align: center;
        }

        .countdown-ring-container {
            position: relative;
            width: 200px;
            height: 200px;
            margin: 0 auto 16px;
        }

        .countdown-ring-container svg {
            width: 100%;
            height: 100%;
            transform: rotate(-90deg);
        }

        .countdown-ring-bg {
            fill: none;
            stroke: rgba(255, 255, 255, 0.1);
            stroke-width: 6;
        }

        .countdown-ring-progress {
            fill: none;
            stroke: var(--color-accent);
            stroke-width: 6;
            stroke-linecap: round;
            stroke-dasharray: 339.292;
            stroke-dashoffset: 80;
            transition: stroke-dashoffset 1s ease;
        }

        .countdown-ring-text {
            position: absolute;
            inset: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
        }

        .countdown-ring-text .days {
            font-family: var(--font-num);
            font-size: 48px;
            font-weight: 700;
            color: #fff;
            line-height: 1;
        }

        .countdown-ring-text .label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            font-weight: 500;
        }

        .countdown-dots {
            display: flex;
            gap: 8px;
            justify-content: center;
            margin-top: 8px;
        }

        .countdown-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.25);
            cursor: pointer;
            transition: background-color 0.3s ease, transform 0.3s ease;
        }

        .countdown-dot.active {
            background-color: var(--color-accent);
            transform: scale(1.3);
        }

        .hero-floating-card {
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: var(--radius-card);
            padding: 16px 20px;
            display: flex;
            align-items: center;
            gap: 12px;
            max-width: 280px;
            box-shadow: 0 8px 24px rgba(11, 29, 44, 0.25);
        }

        .hero-floating-card .live-indicator {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: #FF3B3B;
            animation: blink-live 1.2s infinite;
        }

        @keyframes blink-live {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.3;
            }
        }

        .hero-floating-card .fc-text {
            color: rgba(255, 255, 255, 0.8);
            font-size: 14px;
            font-weight: 500;
        }

        .hero-floating-card .fc-score {
            font-family: var(--font-num);
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-left: auto;
        }

        /* ============ FOCUS TOPICS ============ */
        .focus-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .focus-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            cursor: pointer;
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
            position: relative;
        }

        .focus-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--color-ice);
        }

        .focus-card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            display: block;
        }

        .focus-card-body {
            padding: 18px 20px 20px;
        }

        .focus-card-body h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-primary);
            line-height: 1.4;
        }

        .focus-card-body p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.6;
        }

        /* ============ NEWS ============ */
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 40px;
            align-items: start;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--color-border);
            transition: background-color 0.2s ease;
        }

        .news-item:first-child {
            padding-top: 0;
        }

        .news-item:hover {
            background-color: rgba(78, 168, 222, 0.05);
        }

        .news-date {
            flex-shrink: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            min-width: 64px;
            height: fit-content;
            background-color: var(--color-ice-soft);
            border-radius: 8px;
            padding: 8px 6px;
            text-align: center;
        }

        .news-date .month {
            font-size: 12px;
            font-weight: 600;
            color: var(--color-accent);
        }

        .news-date .day {
            font-family: var(--font-num);
            font-size: 24px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
        }

        .news-date .year {
            font-size: 11px;
            color: var(--color-text-secondary);
        }

        .news-content {
            flex: 1;
        }

        .news-content h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
            line-height: 1.45;
        }

        .news-content h3 a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .news-content h3 a:hover {
            color: var(--color-accent);
        }

        .news-content p {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 10px;
        }

        .news-sidebar {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .news-sidebar-block {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-side);
            padding: 20px;
        }

        .news-sidebar-block h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--color-primary);
        }

        .news-sidebar-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .news-sidebar-list li {
            font-size: 14px;
            line-height: 1.6;
            color: var(--color-text-secondary);
            display: flex;
            gap: 8px;
            align-items: flex-start;
        }

        .news-sidebar-list li::before {
            content: '';
            flex-shrink: 0;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background-color: var(--color-accent);
            margin-top: 9px;
        }

        .news-sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ============ SERVICE / FEATURE MIX ============ */
        .feature-mix {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 24px;
        }

        .feature-main-card {
            background: var(--color-primary);
            border-radius: var(--radius-card);
            padding: 36px 32px;
            color: #fff;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-height: 360px;
            position: relative;
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .feature-main-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }

        .feature-main-card::after {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(242, 107, 58, 0.2), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .feature-main-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background-color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .feature-main-icon svg {
            width: 26px;
            height: 26px;
            color: #fff;
        }

        .feature-main-card h3 {
            color: #fff;
            font-size: 22px;
            margin-bottom: 12px;
        }

        .feature-main-card p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            line-height: 1.75;
            margin-bottom: 18px;
        }

        .feature-main-card .btn-link {
            color: var(--color-accent);
        }

        .feature-sub-cards {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .feature-sub-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 18px 20px;
            display: flex;
            gap: 14px;
            align-items: flex-start;
            cursor: pointer;
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
            flex: 1;
        }

        .feature-sub-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
            border-color: var(--color-ice);
        }

        .feature-sub-icon {
            width: 38px;
            height: 38px;
            border-radius: 8px;
            background-color: var(--color-ice-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .feature-sub-icon svg {
            width: 20px;
            height: 20px;
            color: var(--color-ice);
        }

        .feature-sub-card h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--color-primary);
        }

        .feature-sub-card p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.6;
        }

        /* ============ SCENARIOS ============ */
        .scenario-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            margin-bottom: 48px;
        }

        .scenario-block:last-child {
            margin-bottom: 0;
        }

        .scenario-block.reverse {
            direction: rtl;
        }

        .scenario-block.reverse>* {
            direction: ltr;
        }

        .scenario-img {
            border-radius: var(--radius-card);
            overflow: hidden;
            aspect-ratio: 16/10;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
        }

        .scenario-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        .scenario-content h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--color-primary);
        }

        .scenario-content p {
            font-size: 17px;
            line-height: 1.8;
            color: var(--color-text-secondary);
            margin-bottom: 16px;
            text-align: justify;
        }

        .scenario-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .scenario-list li {
            font-size: 15px;
            color: var(--color-text);
            display: flex;
            gap: 10px;
            align-items: flex-start;
            line-height: 1.6;
        }

        .scenario-list li::before {
            content: '';
            flex-shrink: 0;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--color-ice);
            margin-top: 9px;
        }

        /* ============ DEEP CONTENT ============ */
        .deep-content {
            display: grid;
            grid-template-columns: 1fr 280px;
            gap: 40px;
            align-items: start;
        }

        .deep-content-main {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 36px 32px;
        }

        .deep-content-main h3 {
            font-size: 20px;
            margin-bottom: 16px;
            margin-top: 28px;
            color: var(--color-primary);
        }

        .deep-content-main h3:first-of-type {
            margin-top: 0;
        }

        .deep-content-main p {
            font-size: 17px;
            line-height: 1.85;
            color: var(--color-text);
            margin-bottom: 16px;
            text-align: justify;
        }

        .deep-content-main ul,
        .deep-content-main ol {
            margin-bottom: 16px;
            padding-left: 24px;
        }

        .deep-content-main li {
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            margin-bottom: 6px;
        }

        .deep-content-main blockquote {
            border-left: 4px solid var(--color-accent);
            padding: 12px 20px;
            background-color: rgba(242, 107, 58, 0.06);
            border-radius: 0 8px 8px 0;
            margin: 20px 0;
            font-style: italic;
            color: var(--color-text-secondary);
        }

        .deep-content-toc {
            position: sticky;
            top: calc(var(--nav-height) + 24px);
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-side);
            padding: 20px;
        }

        .deep-content-toc h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--color-primary);
        }

        .deep-content-toc a {
            display: block;
            font-size: 14px;
            color: var(--color-text-secondary);
            padding: 6px 0;
            text-decoration: none;
            border-bottom: 1px solid var(--color-border);
            transition: color 0.2s ease;
            line-height: 1.5;
        }

        .deep-content-toc a:last-child {
            border-bottom: none;
        }

        .deep-content-toc a:hover {
            color: var(--color-accent);
        }

        /* ============ CASE STUDIES ============ */
        .case-card {
            display: grid;
            grid-template-columns: 220px 1fr;
            gap: 28px;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px;
            margin-bottom: 20px;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            align-items: center;
        }

        .case-card:last-child {
            margin-bottom: 0;
        }

        .case-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-sm);
        }

        .case-metric {
            text-align: center;
            padding: 20px;
            background: var(--color-ice-soft);
            border-radius: 12px;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .case-metric .num {
            font-family: var(--font-num);
            font-size: 38px;
            font-weight: 700;
            color: var(--color-success);
            line-height: 1;
        }

        .case-metric .unit {
            font-size: 14px;
            color: var(--color-text-secondary);
            font-weight: 500;
        }

        .case-content h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .case-content p {
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text-secondary);
        }

        /* ============ BRAND INTRO ============ */
        .brand-intro {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .brand-intro-img {
            border-radius: var(--radius-card);
            overflow: hidden;
            aspect-ratio: 16/11;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
        }

        .brand-intro-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        .brand-intro-text p {
            font-size: 17px;
            line-height: 1.85;
            color: var(--color-text);
            margin-bottom: 14px;
            text-align: justify;
        }

        /* ============ REVIEW WALL ============ */
        .review-summary {
            display: grid;
            grid-template-columns: 200px 1fr;
            gap: 40px;
            margin-bottom: 32px;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px;
            align-items: center;
        }

        .review-score {
            text-align: center;
        }

        .review-score .big-score {
            font-family: var(--font-num);
            font-size: 56px;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1;
        }

        .review-score .stars {
            font-size: 20px;
            color: var(--color-warm);
            margin-top: 6px;
            letter-spacing: 3px;
        }

        .review-score .count {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin-top: 4px;
        }

        .review-breakdown {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .review-breakdown-row {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            color: var(--color-text-secondary);
        }

        .review-breakdown-row .bar-bg {
            flex: 1;
            height: 8px;
            background-color: var(--color-surface);
            border-radius: 4px;
            overflow: hidden;
        }

        .review-breakdown-row .bar-fill {
            height: 100%;
            background-color: var(--color-accent);
            border-radius: 4px;
        }

        .review-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .review-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }

        .review-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-sm);
        }

        .review-item .r-header {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
        }

        .review-item .r-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: var(--color-ice-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--color-primary);
            font-size: 16px;
            flex-shrink: 0;
        }

        .review-item .r-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
        }

        .review-item .r-stars {
            font-size: 14px;
            color: var(--color-warm);
            margin-left: auto;
        }

        .review-item .r-text {
            font-size: 15px;
            line-height: 1.7;
            color: var(--color-text-secondary);
        }

        /* ============ PRICE TABLE ============ */
        .price-grid {
            display: grid;
            grid-template-columns: 1fr 1.3fr 1fr;
            gap: 20px;
            align-items: stretch;
        }

        .price-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            display: flex;
            flex-direction: column;
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
            position: relative;
        }

        .price-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .price-card.featured {
            border: 2px solid var(--color-accent);
            box-shadow: var(--shadow-md);
            transform: scale(1.04);
            z-index: 2;
        }

        .price-card.featured:hover {
            transform: scale(1.04) translateY(-4px);
        }

        .price-card .badge-featured {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background-color: var(--color-accent);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 999px;
            letter-spacing: 0.04em;
            white-space: nowrap;
        }

        .price-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .price-card .price-amount {
            font-family: var(--font-num);
            font-size: 40px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.1;
            margin-bottom: 4px;
        }

        .price-card .price-amount .currency {
            font-size: 22px;
            margin-right: 2px;
            color: var(--color-text-secondary);
        }

        .price-card .price-amount .period {
            font-size: 15px;
            font-weight: 400;
            color: var(--color-text-secondary);
            margin-left: 4px;
        }

        .price-card .price-desc {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin-bottom: 16px;
            line-height: 1.5;
        }

        .price-card ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin-bottom: 20px;
            flex: 1;
        }

        .price-card ul li {
            font-size: 14px;
            line-height: 1.6;
            color: var(--color-text);
            display: flex;
            gap: 8px;
            align-items: flex-start;
        }

        .price-card ul li::before {
            content: '✓';
            flex-shrink: 0;
            color: var(--color-success);
            font-weight: 700;
            font-size: 14px;
        }

        /* ============ LATEST UPDATES ============ */
        .updates-table {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
        }

        .updates-row {
            display: grid;
            grid-template-columns: 120px 1fr 120px;
            gap: 16px;
            padding: 16px 20px;
            border-bottom: 1px solid var(--color-border);
            align-items: center;
            font-size: 15px;
            transition: background-color 0.2s ease;
        }

        .updates-row:last-child {
            border-bottom: none;
        }

        .updates-row:hover {
            background-color: rgba(78, 168, 222, 0.06);
        }

        .updates-row .upd-date {
            font-family: var(--font-num);
            font-size: 14px;
            color: var(--color-text-secondary);
            font-weight: 500;
        }

        .updates-row .upd-title {
            font-weight: 600;
            color: var(--color-primary);
        }

        .updates-row .upd-status {
            text-align: right;
        }

        .updates-row .upd-status .badge {
            font-size: 12px;
            padding: 3px 10px;
        }

        /* ============ VERTICAL CARDS ============ */
        .vertical-card-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .vertical-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            cursor: pointer;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .vertical-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .vertical-card-img {
            width: 100%;
            aspect-ratio: 3/4;
            object-fit: cover;
            display: block;
        }

        .vertical-card-body {
            padding: 14px 16px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .vertical-card-body h4 {
            font-size: 15px;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: 6px;
            color: var(--color-primary);
        }

        .vertical-card-body p {
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.5;
            margin-bottom: 10px;
            flex: 1;
        }

        /* ============ APP DOWNLOAD ============ */
        .app-section {
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius-card);
            padding: 48px 40px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .app-section::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(78, 168, 222, 0.2), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .app-content h2 {
            color: #fff;
            margin-bottom: 16px;
        }

        .app-content p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 17px;
            line-height: 1.75;
            margin-bottom: 24px;
        }

        .app-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .app-badge-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 10px 18px;
            border-radius: 10px;
            background-color: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            transition: background-color 0.25s ease;
            text-decoration: none;
        }

        .app-badge-btn:hover {
            background-color: rgba(255, 255, 255, 0.2);
            color: #fff;
        }

        .app-visual {
            border-radius: var(--radius-card);
            overflow: hidden;
            aspect-ratio: 4/3;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }

        .app-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        /* ============ FAQ ============ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-left: 3px solid var(--color-border);
            border-radius: 8px;
            overflow: hidden;
            transition: border-color 0.25s ease;
        }

        .faq-item.active {
            border-left-color: var(--color-accent);
        }

        .faq-question {
            padding: 18px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            font-size: 17px;
            font-weight: 650;
            color: var(--color-primary);
            background: none;
            width: 100%;
            text-align: left;
            transition: background-color 0.2s ease;
        }

        .faq-question:hover {
            background-color: rgba(78, 168, 222, 0.06);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 20px;
            transition: transform 0.3s ease;
            font-weight: 400;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 20px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-text-secondary);
        }

        /* ============ CTA ============ */
        .cta-section {
            background: var(--color-primary);
            position: relative;
            overflow: hidden;
            text-align: center;
            padding: 72px 0;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60' viewBox='0 0 60 60'%3E%3Cpath d='M0 0 L30 20 L60 0 L45 40 L60 60 L20 45 L0 60 L30 40 Z' fill='none' stroke='rgba(255,255,255,0.04)' stroke-width='1'/%3E%3C/svg%3E");
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            color: #fff;
            margin-bottom: 14px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 16px;
            margin-bottom: 28px;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.75);
            padding-top: 60px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 40px;
        }

        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .footer-brand .nav-logo {
            color: #fff;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            text-decoration: none;
            padding: 4px 0;
            transition: color 0.2s ease;
            line-height: 1.6;
        }

        .footer-col a:hover {
            color: var(--color-accent);
        }

        .footer-middle {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-subscribe {
            display: flex;
            gap: 10px;
            flex: 1;
            max-width: 420px;
        }

        .footer-subscribe input {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            border-radius: 6px;
            height: 42px;
            font-size: 14px;
            padding: 0 14px;
            flex: 1;
        }

        .footer-subscribe input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-subscribe input:focus {
            border-color: var(--color-ice);
            box-shadow: 0 0 0 3px rgba(78, 168, 222, 0.2);
            outline: none;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: background-color 0.25s ease, color 0.25s ease;
            font-size: 14px;
        }

        .footer-social a:hover {
            background-color: var(--color-accent);
            color: #fff;
            border-color: var(--color-accent);
        }

        .footer-bottom {
            padding: 24px 0 28px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            text-align: center;
            line-height: 2;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        .footer-bottom .sep {
            margin: 0 6px;
            color: rgba(255, 255, 255, 0.25);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .hero .container {
                grid-template-columns: 1fr;
                gap: 36px;
                text-align: center;
            }
            .hero-subtitle {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-cta {
                justify-content: center;
            }
            .hero-trust {
                justify-content: center;
            }
            .hero-visual {
                order: -1;
            }
            .focus-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .news-sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
            }
            .feature-mix {
                grid-template-columns: 1fr;
            }
            .feature-sub-cards {
                display: grid;
                grid-template-columns: 1fr 1fr;
            }
            .scenario-block,
            .scenario-block.reverse {
                grid-template-columns: 1fr;
                direction: ltr;
            }
            .scenario-block.reverse>* {
                direction: ltr;
            }
            .deep-content {
                grid-template-columns: 1fr;
            }
            .deep-content-toc {
                position: static;
                display: none;
            }
            .case-card {
                grid-template-columns: 160px 1fr;
                gap: 20px;
            }
            .review-list {
                grid-template-columns: 1fr;
            }
            .price-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .price-card.featured {
                transform: none;
                order: -1;
            }
            .price-card.featured:hover {
                transform: translateY(-4px);
            }
            .vertical-card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .app-section {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .app-buttons {
                justify-content: center;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: span 2;
            }
            .review-summary {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .brand-intro {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: var(--section-gap-mobile);
                --container-pad: var(--container-pad-mobile);
                --nav-height: 64px;
            }
            body {
                font-size: 16px;
                line-height: 1.7;
            }
            .nav-channels {
                display: none;
            }
            .nav-hamburger {
                display: flex;
            }
            .nav-search input {
                width: 120px;
            }
            .nav-search input:focus {
                width: 160px;
            }
            .nav-btn-publish span {
                display: none;
            }
            .nav-btn-login {
                padding: 8px 12px;
                font-size: 13px;
            }
            .hero {
                padding: 80px 0 72px;
                min-height: auto;
            }
            .hero h1 {
                font-size: clamp(1.9rem, 7vw, 2.6rem);
            }
            .hero-subtitle {
                font-size: 17px;
            }
            .countdown-ring-container {
                width: 150px;
                height: 150px;
            }
            .countdown-ring-text .days {
                font-size: 34px;
            }
            .focus-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .news-date {
                min-width: 50px;
            }
            .news-date .day {
                font-size: 20px;
            }
            .news-sidebar {
                grid-template-columns: 1fr;
            }
            .feature-sub-cards {
                grid-template-columns: 1fr;
            }
            .case-card {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .case-metric {
                max-width: 160px;
                margin: 0 auto;
            }
            .updates-row {
                grid-template-columns: 80px 1fr 80px;
                gap: 10px;
                padding: 12px 14px;
                font-size: 13px;
            }
            .vertical-card-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .app-section {
                padding: 32px 20px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-brand {
                grid-column: span 1;
            }
            .footer-middle {
                flex-direction: column;
                align-items: stretch;
                text-align: center;
            }
            .footer-subscribe {
                max-width: 100%;
            }
            .footer-social {
                justify-content: center;
            }
            .deep-content-main {
                padding: 20px 18px;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .news-item {
                flex-direction: column;
                gap: 10px;
            }
            .news-date {
                flex-direction: row;
                gap: 6px;
                min-width: auto;
                justify-content: flex-start;
                align-items: baseline;
            }
            .news-date .day {
                font-size: 18px;
            }
            .review-score .big-score {
                font-size: 42px;
            }
        }

        @media (max-width: 520px) {
            .hero-cta {
                flex-direction: column;
                align-items: center;
            }
            .hero-cta .btn {
                width: 100%;
                max-width: 280px;
            }
            .hero-trust {
                gap: 16px;
            }
            .focus-grid {
                grid-template-columns: 1fr;
            }
            .vertical-card-grid {
                grid-template-columns: 1fr;
            }
            .price-card {
                padding: 20px 16px;
            }
            .price-card .price-amount {
                font-size: 32px;
            }
            .updates-row {
                grid-template-columns: 1fr;
                gap: 4px;
                text-align: left;
            }
            .updates-row .upd-status {
                text-align: left;
            }
            .footer-bottom {
                font-size: 12px;
            }
            .nav-search input {
                width: 80px;
                font-size: 12px;
                padding-left: 10px;
            }
            .nav-search input:focus {
                width: 120px;
            }
        }

/* roulang page: category3 */
:root {
  --color-primary: #0B1D2C;
  --color-primary-light: #143652;
  --color-surface: #F4F9FC;
  --color-card: #FFFFFF;
  --color-accent: #F26B3A;
  --color-accent-hover: #D9531F;
  --color-ice: #4EA8DE;
  --color-ice-soft: #E3F0F7;
  --color-text: #162B3D;
  --color-text-secondary: #5A6F80;
  --color-border: #D9E6EE;
  --color-bg-hero: #0B1D2C;
  --color-success: #2D9C6E;
  --color-warm: #F5B841;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "HanHei SC", system-ui, sans-serif;
  --font-num: "DIN Alternate", "Oswald", "Barlow Condensed", sans-serif;
  --shadow-sm: 0 2px 12px rgba(11, 29, 44, 0.06);
  --shadow-md: 0 6px 20px rgba(11, 29, 44, 0.12);
  --radius-card: 14px;
  --radius-btn: 8px;
  --radius-input: 6px;
  --radius-badge: 999px;
  --radius-side: 10px;
  --section-gap: 96px;
  --section-gap-mobile: 48px;
  --container-max: 1280px;
  --container-pad: 24px;
  --container-pad-mobile: 16px;
  --nav-height: 72px;
}
@media (max-width: 768px) {
  :root {
    --section-gap: var(--section-gap-mobile);
    --container-pad: var(--container-pad-mobile);
    --nav-height: 64px;
  }
}
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--font-sans);
  font-size: 18px;
  line-height: 1.8;
  color: var(--color-text);
  background-color: var(--color-surface);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  color: var(--color-ice);
  text-decoration: none;
  transition: color 0.2s ease, text-decoration 0.2s ease;
}
a:hover {
  color: var(--color-accent);
}
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 3px solid rgba(78, 168, 222, 0.45);
  outline-offset: 2px;
  border-radius: 4px;
}
button {
  font-family: var(--font-sans);
  cursor: pointer;
  border: none;
  background: none;
  font-size: 16px;
  font-weight: 600;
  transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.15s ease, box-shadow 0.25s ease;
}
button:active {
  transform: scale(0.98);
}
input,
textarea,
select {
  font-family: var(--font-sans);
  font-size: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-input);
  padding: 10px 14px;
  background-color: #fff;
  color: var(--color-text);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
  width: 100%;
}
input:focus,
textarea:focus,
select:focus {
  border-color: var(--color-ice);
  box-shadow: 0 0 0 3px rgba(78, 168, 222, 0.18);
  outline: none;
}
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}
.section {
  padding-top: var(--section-gap);
  padding-bottom: var(--section-gap);
}
.section-tight {
  padding-top: 60px;
  padding-bottom: 60px;
}
.section-alt {
  background-color: #fff;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
  position: relative;
  padding-left: 18px;
}
.section-label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 10px;
  height: 3px;
  background-color: var(--color-accent);
  border-radius: 2px;
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-primary);
  margin-bottom: 16px;
}
.section-desc {
  font-size: 18px;
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: 40px;
  max-width: 760px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-btn);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.15s ease, box-shadow 0.25s ease;
  text-decoration: none;
  white-space: nowrap;
  line-height: 1.4;
}
.btn:hover {
  text-decoration: none;
}
.btn-primary {
  background-color: var(--color-accent);
  color: #fff;
}
.btn-primary:hover {
  background-color: var(--color-accent-hover);
  color: #fff;
  box-shadow: 0 6px 18px rgba(242, 107, 58, 0.28);
}
.btn-ghost {
  background-color: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.6);
}
.btn-ghost:hover {
  background-color: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-color: #fff;
}
.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-border);
}
.btn-outline:hover {
  background-color: var(--color-ice-soft);
  border-color: var(--color-ice);
  color: var(--color-primary);
}
.btn-sm {
  padding: 8px 16px;
  font-size: 14px;
}
.nav-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-primary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  height: var(--nav-height);
  display: flex;
  align-items: center;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.nav-left {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-shrink: 0;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 700;
  font-size: 20px;
  white-space: nowrap;
}
.nav-logo:hover {
  color: #fff;
}
.nav-logo-text {
  color: #fff;
}
.nav-logo-text span {
  color: var(--color-accent);
}
.nav-channels {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}
.nav-channels a {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 6px;
  color: rgba(255, 255, 255, 0.75);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: color 0.2s ease, background-color 0.2s ease;
}
.nav-channels a:hover {
  color: #fff;
  background-color: rgba(255, 255, 255, 0.08);
}
.nav-channels a.active {
  color: var(--color-accent);
  background-color: rgba(242, 107, 58, 0.12);
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.nav-search {
  position: relative;
  width: 180px;
}
.nav-search input {
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 6px;
  color: #fff;
  padding: 8px 12px 8px 36px;
  font-size: 14px;
  width: 100%;
}
.nav-search input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}
.nav-search input:focus {
  border-color: rgba(78, 168, 222, 0.6);
  box-shadow: 0 0 0 3px rgba(78, 168, 222, 0.15);
  background-color: rgba(255, 255, 255, 0.12);
}
.nav-search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: rgba(255, 255, 255, 0.5);
  pointer-events: none;
}
.btn-nav-login {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.4);
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
  white-space: nowrap;
}
.btn-nav-login:hover {
  background-color: rgba(255, 255, 255, 0.12);
  border-color: #fff;
}
.btn-nav-cta {
  background-color: var(--color-accent);
  color: #fff;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.btn-nav-cta:hover {
  background-color: var(--color-accent-hover);
  color: #fff;
}
.nav-hamburger {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: 6px;
}
.nav-hamburger svg {
  width: 24px;
  height: 24px;
  color: #fff;
}
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-primary);
  z-index: 99;
  padding: 24px;
  overflow-y: auto;
}
.mobile-menu.open {
  display: block;
}
.mobile-menu a {
  display: block;
  padding: 12px 16px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 16px;
  border-radius: 8px;
  margin-bottom: 4px;
}
.mobile-menu a:hover,
.mobile-menu a.active {
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--color-accent);
}
.breadcrumb {
  padding: 28px 0 0;
  font-size: 14px;
  color: var(--color-text-secondary);
}
.breadcrumb a {
  color: var(--color-ice);
}
.breadcrumb a:hover {
  color: var(--color-accent);
}
.breadcrumb span {
  margin: 0 8px;
  color: var(--color-border);
}
.category-hero {
  background-color: var(--color-bg-hero);
  background-image: radial-gradient(ellipse at 20% 30%, rgba(78, 168, 222, 0.18) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 70%, rgba(242, 107, 58, 0.1) 0%, transparent 50%),
    url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  padding: 72px 0;
  position: relative;
  overflow: hidden;
}
.category-hero::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 60px;
  background: linear-gradient(180deg, transparent 0%, var(--color-surface) 100%);
  pointer-events: none;
}
.category-hero .container {
  position: relative;
  z-index: 1;
}
.category-hero-title {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: -0.01em;
}
.category-hero-desc {
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.78);
  max-width: 720px;
}
.filter-bar {
  background-color: var(--color-card);
  border-bottom: 1px solid var(--color-border);
  padding: 16px 0;
  position: sticky;
  top: var(--nav-height);
  z-index: 50;
  box-shadow: var(--shadow-sm);
}
.filter-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.filter-tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: var(--radius-badge);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.filter-tag:hover {
  border-color: var(--color-ice);
  color: var(--color-primary);
}
.filter-tag.active {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}
.list-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 32px;
  align-items: start;
}
.list-main {
  min-width: 0;
}
.content-item {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 20px;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 20px;
  margin-bottom: 20px;
  transition: box-shadow 0.25s ease, transform 0.2s ease, border-color 0.25s ease;
}
.content-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--color-ice);
}
.content-item-img {
  border-radius: 10px;
  overflow: hidden;
  height: 100%;
  min-height: 140px;
}
.content-item-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.content-item-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.content-item-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--color-text-secondary);
}
.content-item-tag {
  display: inline-block;
  padding: 2px 10px;
  border-radius: var(--radius-badge);
  background-color: var(--color-ice-soft);
  color: var(--color-ice);
  font-size: 12px;
  font-weight: 600;
}
.content-item-title {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-primary);
}
.content-item-title a {
  color: inherit;
}
.content-item-title a:hover {
  color: var(--color-accent);
}
.content-item-excerpt {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-secondary);
}
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.side-widget {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-side);
  padding: 20px;
}
.side-widget h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-ice-soft);
}
.side-post {
  display: flex;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
}
.side-post:last-child {
  border-bottom: none;
}
.side-post-num {
  font-family: var(--font-num);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-accent);
  flex-shrink: 0;
  line-height: 1.2;
}
.side-post h4 {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-primary);
}
.side-post h4 a {
  color: inherit;
}
.side-post h4 a:hover {
  color: var(--color-accent);
}
.side-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.side-tag-list a {
  display: inline-block;
  padding: 4px 10px;
  border-radius: var(--radius-badge);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  font-size: 12px;
  color: var(--color-text-secondary);
  transition: all 0.2s ease;
}
.side-tag-list a:hover {
  background-color: var(--color-ice-soft);
  border-color: var(--color-ice);
  color: var(--color-primary);
}
.subscribe-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.subscribe-form label {
  font-size: 14px;
  color: var(--color-text-secondary);
}
.subscribe-form input {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-input);
  padding: 10px 12px;
  font-size: 14px;
  background-color: var(--color-surface);
}
.subscribe-form input:focus {
  background-color: #fff;
  border-color: var(--color-ice);
  box-shadow: 0 0 0 3px rgba(78, 168, 222, 0.18);
}
.subscribe-btn {
  background-color: var(--color-primary);
  color: #fff;
  padding: 10px 16px;
  border-radius: var(--radius-btn);
  font-size: 14px;
  font-weight: 600;
}
.subscribe-btn:hover {
  background-color: var(--color-primary-light);
  color: #fff;
}
.deep-content {
  background-color: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 40px;
}
.deep-content .section-label {
  margin-bottom: 8px;
}
.deep-content h2 {
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 20px;
  line-height: 1.3;
}
.deep-content h3 {
  font-size: clamp(1.15rem, 2.5vw, 1.35rem);
  font-weight: 650;
  color: var(--color-primary);
  margin: 32px 0 12px;
  line-height: 1.4;
}
.deep-content p {
  font-size: 17px;
  line-height: 1.9;
  color: var(--color-text);
  margin-bottom: 16px;
}
.deep-content ul,
.deep-content ol {
  margin: 16px 0 16px 24px;
  padding: 0;
}
.deep-content li {
  font-size: 17px;
  line-height: 1.9;
  color: var(--color-text);
  margin-bottom: 8px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.related-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: box-shadow 0.25s ease, transform 0.2s ease;
}
.related-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.related-card img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}
.related-card-body {
  padding: 16px;
}
.related-card-title {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--color-primary);
  margin-bottom: 6px;
}
.related-card-title a {
  color: inherit;
}
.related-card-title a:hover {
  color: var(--color-accent);
}
.related-card-desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-secondary);
}
.cta-section {
  background-color: var(--color-primary);
  background-image: radial-gradient(ellipse at 30% 40%, rgba(78, 168, 222, 0.15) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 60%, rgba(242, 107, 58, 0.08) 0%, transparent 50%);
  padding: 72px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section .container {
  position: relative;
  z-index: 1;
}
.cta-section h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}
.cta-section p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 28px;
}
.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.site-footer {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.75);
  padding: 60px 0 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}
.footer-brand {
  max-width: 320px;
}
.footer-brand .nav-logo {
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
}
.footer-col a {
  display: block;
  padding: 4px 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  transition: color 0.2s ease;
}
.footer-col a:hover {
  color: var(--color-accent);
}
.footer-mid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  padding: 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 24px;
}
.footer-subscribe {
  display: flex;
  gap: 10px;
  max-width: 400px;
}
.footer-subscribe input {
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 6px;
  color: #fff;
  padding: 10px 14px;
  font-size: 14px;
  flex: 1;
}
.footer-subscribe input::placeholder {
  color: rgba(255, 255, 255, 0.45);
}
.footer-subscribe input:focus {
  border-color: rgba(78, 168, 222, 0.6);
  box-shadow: 0 0 0 3px rgba(78, 168, 222, 0.15);
}
.footer-subscribe button {
  background-color: var(--color-accent);
  color: #fff;
  padding: 10px 20px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}
.footer-subscribe button:hover {
  background-color: var(--color-accent-hover);
}
.footer-social {
  display: flex;
  gap: 10px;
}
.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.7);
  transition: all 0.25s ease;
}
.footer-social a:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}
.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 13px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.5);
}
.footer-bottom a {
  color: rgba(255, 255, 255, 0.65);
}
.footer-bottom a:hover {
  color: var(--color-accent);
}
@media (max-width: 1024px) {
  .list-layout {
    grid-template-columns: 1fr;
  }
  .sidebar {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: 1fr 1fr 1fr;
  }
  .footer-brand {
    grid-column: 1 / -1;
    max-width: none;
  }
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 768px) {
  .nav-channels {
    display: none;
  }
  .nav-search {
    display: none;
  }
  .nav-hamburger {
    display: block;
  }
  .content-item {
    grid-template-columns: 1fr;
  }
  .content-item-img {
    max-height: 200px;
    min-height: 160px;
  }
  .deep-content {
    padding: 24px 18px;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .sidebar {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
  .footer-mid {
    flex-direction: column;
    align-items: stretch;
  }
  .footer-subscribe {
    max-width: none;
  }
}
@media (max-width: 520px) {
  .footer-top {
    grid-template-columns: 1fr;
  }
  .filter-bar {
    top: var(--nav-height);
    padding: 10px 0;
  }
  .filter-list {
    gap: 6px;
  }
  .filter-tag {
    font-size: 12px;
    padding: 5px 10px;
  }
  .category-hero {
    padding: 48px 0;
  }
  .category-hero-title {
    font-size: 1.8rem;
  }
  .category-hero-desc {
    font-size: 16px;
  }
  .btn {
    padding: 10px 18px;
    font-size: 14px;
  }
}

/* roulang page: category1 */
:root {
            --color-primary: #0B1D2C;
            --color-primary-light: #143652;
            --color-surface: #F4F9FC;
            --color-card: #FFFFFF;
            --color-accent: #F26B3A;
            --color-accent-hover: #D9531F;
            --color-ice: #4EA8DE;
            --color-ice-soft: #E3F0F7;
            --color-text: #162B3D;
            --color-text-secondary: #5A6F80;
            --color-border: #D9E6EE;
            --color-bg-hero: #0B1D2C;
            --color-success: #2D9C6E;
            --color-warm: #F5B841;
            --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "HanHei SC", system-ui, sans-serif;
            --font-num: "DIN Alternate", "Oswald", "Barlow Condensed", sans-serif;
            --shadow-sm: 0 2px 12px rgba(11, 29, 44, 0.06);
            --shadow-md: 0 6px 20px rgba(11, 29, 44, 0.12);
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-input: 6px;
            --radius-badge: 999px;
            --radius-side: 10px;
            --section-gap: 96px;
            --section-gap-mobile: 48px;
            --container-max: 1280px;
            --container-pad: 24px;
            --container-pad-mobile: 16px;
            --nav-height: 72px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 18px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-surface);
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--color-ice);
            text-decoration: none;
            transition: color 0.2s ease, text-decoration 0.2s ease;
        }
        a:hover {
            color: var(--color-accent);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(78, 168, 222, 0.45);
            outline-offset: 2px;
            border-radius: 4px;
        }
        button {
            font-family: var(--font-sans);
            cursor: pointer;
            border: none;
            background: none;
            font-size: 16px;
            font-weight: 600;
            transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.15s ease, box-shadow 0.25s ease;
        }
        button:active {
            transform: scale(0.98);
        }
        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 16px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-input);
            padding: 10px 14px;
            background-color: #fff;
            color: var(--color-text);
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
            width: 100%;
        }
        input:focus,
        textarea:focus,
        select:focus {
            border-color: var(--color-ice);
            box-shadow: 0 0 0 3px rgba(78, 168, 222, 0.18);
            outline: none;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: var(--container-pad);
            padding-right: var(--container-pad);
        }
        .section {
            padding-top: var(--section-gap);
            padding-bottom: var(--section-gap);
        }
        .section-tight {
            padding-top: 60px;
            padding-bottom: 60px;
        }
        .section-alt {
            background-color: #fff;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 12px;
            position: relative;
            padding-left: 18px;
        }
        .section-label::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 10px;
            height: 3px;
            background-color: var(--color-accent);
            border-radius: 2px;
        }
        .section-title {
            font-size: clamp(1.8rem, 4vw, 2.4rem);
            line-height: 1.2;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--color-primary);
            margin-bottom: 16px;
        }
        .section-desc {
            font-size: 18px;
            line-height: 1.8;
            color: var(--color-text-secondary);
            margin-bottom: 40px;
            max-width: 760px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 16px;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.15s ease, box-shadow 0.25s ease;
            text-decoration: none;
            white-space: nowrap;
            line-height: 1.4;
        }
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-primary {
            background-color: var(--color-accent);
            color: #fff;
        }
        .btn-primary:hover {
            background-color: var(--color-accent-hover);
            color: #fff;
        }
        .btn-primary:active {
            background-color: #c04a1a;
            color: #fff;
        }
        .btn-ghost-light {
            background-color: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.5);
        }
        .btn-ghost-light:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: #fff;
            border-color: #fff;
        }
        .btn-ghost-dark {
            background-color: transparent;
            color: var(--color-primary);
            border: 1px solid var(--color-border);
        }
        .btn-ghost-dark:hover {
            background-color: var(--color-ice-soft);
            color: var(--color-primary);
            border-color: var(--color-ice);
        }
        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            font-size: 13px;
            font-weight: 500;
            line-height: 1.5;
        }
        .badge-accent {
            background-color: var(--color-ice-soft);
            color: var(--color-ice);
        }
        .badge-warm {
            background-color: #FFF4E0;
            color: #C27C15;
        }
        .badge-accent-solid {
            background-color: var(--color-accent);
            color: #fff;
        }
        .tag-group {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin: 20px 0 30px;
        }
        .tag-filter {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: var(--radius-badge);
            font-size: 14px;
            font-weight: 500;
            background-color: #fff;
            border: 1px solid var(--color-border);
            color: var(--color-text-secondary);
            cursor: pointer;
            transition: all 0.25s ease;
        }
        .tag-filter:hover {
            border-color: var(--color-ice);
            color: var(--color-ice);
            background-color: var(--color-ice-soft);
        }
        .tag-filter.active {
            background-color: var(--color-accent);
            color: #fff;
            border-color: var(--color-accent);
        }
        .tag-filter:focus-visible {
            outline: 3px solid rgba(78, 168, 222, 0.45);
            outline-offset: 2px;
        }

        /* Navigation */
        .site-header {
            background-color: var(--color-primary);
            height: var(--nav-height);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 16px;
        }
        .nav-left {
            display: flex;
            align-items: center;
            gap: 12px;
            min-width: 0;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            text-decoration: none;
            flex-shrink: 0;
        }
        .nav-logo:hover {
            color: #fff;
        }
        .nav-logo-text {
            font-size: 20px;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: #fff;
            white-space: nowrap;
        }
        .nav-logo-text span {
            color: var(--color-accent);
        }
        .nav-channels {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .nav-channels::-webkit-scrollbar {
            display: none;
        }
        .nav-channels a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.75);
            text-decoration: none;
            border-radius: var(--radius-btn);
            white-space: nowrap;
            transition: all 0.25s ease;
        }
        .nav-channels a:hover {
            color: #fff;
            background-color: rgba(255, 255, 255, 0.08);
        }
        .nav-channels a.active {
            color: #fff;
            background-color: var(--color-accent);
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-search {
            position: relative;
            width: 180px;
            display: flex;
            align-items: center;
        }
        .nav-search input {
            width: 100%;
            padding: 8px 14px 8px 36px;
            border-radius: var(--radius-input);
            border: 1px solid rgba(255, 255, 255, 0.2);
            background-color: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 14px;
        }
        .nav-search input::placeholder {
            color: rgba(255, 255, 255, 0.55);
        }
        .nav-search input:focus {
            border-color: var(--color-ice);
            box-shadow: 0 0 0 3px rgba(78, 168, 222, 0.25);
        }
        .nav-search .fa-search {
            position: absolute;
            left: 12px;
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            pointer-events: none;
        }
        .btn-nav-login {
            padding: 8px 18px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            background-color: transparent;
            border: 1px solid rgba(255, 255, 255, 0.35);
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        .btn-nav-login:hover {
            background-color: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
        }
        .btn-nav-publish {
            padding: 8px 18px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            background-color: var(--color-accent);
            color: #fff;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .btn-nav-publish:hover {
            background-color: var(--color-accent-hover);
            color: #fff;
        }
        .hamburger {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 24px;
            background: none;
            border: none;
            cursor: pointer;
        }
        .mobile-nav-panel {
            display: none;
            background-color: var(--color-primary);
            padding: 16px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .mobile-nav-panel .nav-channels {
            flex-direction: column;
            align-items: stretch;
            gap: 2px;
            padding: 0 16px;
        }
        .mobile-nav-panel .nav-channels a {
            display: block;
            padding: 12px 16px;
            font-size: 16px;
            border-radius: var(--radius-btn);
            color: rgba(255, 255, 255, 0.8);
        }
        .mobile-nav-panel .nav-channels a.active {
            background-color: var(--color-accent);
            color: #fff;
        }

        /* Breadcrumb & Category Hero */
        .page-hero {
            background-color: var(--color-bg-hero);
            background-image: radial-gradient(ellipse at 30% 20%, #143652 0%, #0B1D2C 70%);
            padding: 48px 0 56px;
            color: #fff;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 20px;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .breadcrumb .fa-chevron-right {
            font-size: 10px;
            color: rgba(255, 255, 255, 0.4);
        }
        .breadcrumb .current {
            color: var(--color-accent);
        }
        .page-hero h1 {
            font-size: clamp(2.2rem, 5vw, 3.2rem);
            line-height: 1.15;
            font-weight: 800;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
            color: #fff;
        }
        .page-hero .hero-desc {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.75);
            max-width: 720px;
        }
        .hero-data-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background-color: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-badge);
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-warm);
            margin-top: 20px;
        }

        /* Deep Content Section */
        .deep-content {
            background-color: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            padding: 40px 44px;
            box-shadow: var(--shadow-sm);
        }
        .deep-content h2 {
            font-size: clamp(1.6rem, 3vw, 2rem);
            line-height: 1.3;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 20px;
        }
        .deep-content h3 {
            font-size: clamp(1.2rem, 2.5vw, 1.4rem);
            line-height: 1.3;
            font-weight: 650;
            color: var(--color-primary);
            margin: 28px 0 12px;
        }
        .deep-content p {
            font-size: 17px;
            line-height: 1.9;
            color: var(--color-text);
            margin-bottom: 16px;
        }
        .deep-content ul,
        .deep-content ol {
            margin: 16px 0 20px 24px;
            color: var(--color-text);
            font-size: 17px;
            line-height: 1.9;
        }
        .deep-content ul li,
        .deep-content ol li {
            margin-bottom: 8px;
        }
        .deep-content blockquote {
            border-left: 3px solid var(--color-accent);
            background-color: var(--color-surface);
            padding: 16px 20px;
            border-radius: 0 var(--radius-btn) var(--radius-btn) 0;
            font-size: 16px;
            color: var(--color-text-secondary);
            margin: 20px 0;
        }

        /* Membership tier cards */
        .tier-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 24px;
            margin-top: 32px;
        }
        .tier-card {
            background-color: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            position: relative;
        }
        .tier-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-ice);
            transform: translateY(-3px);
        }
        .tier-card.featured {
            border: 2px solid var(--color-accent);
            box-shadow: 0 8px 24px rgba(242, 107, 58, 0.12);
        }
        .tier-card .tier-badge {
            position: absolute;
            top: -12px;
            right: 24px;
            background-color: var(--color-accent);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-badge);
        }
        .tier-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
        }
        .tier-card .tier-price {
            font-family: var(--font-num);
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 4px;
        }
        .tier-card .tier-price span {
            font-size: 16px;
            font-weight: 500;
            color: var(--color-text-secondary);
            font-family: var(--font-sans);
        }
        .tier-card ul {
            list-style: none;
            margin: 20px 0 24px;
            padding: 0;
        }
        .tier-card ul li {
            padding: 6px 0;
            font-size: 15px;
            color: var(--color-text-secondary);
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }
        .tier-card ul li .fa-check {
            color: var(--color-success);
            font-size: 14px;
            margin-top: 4px;
            flex-shrink: 0;
        }

        /* Content list + sidebar layout */
        .content-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 32px;
            align-items: start;
        }
        .content-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .list-card {
            display: flex;
            gap: 20px;
            background-color: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }
        .list-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-ice);
            transform: translateY(-2px);
        }
        .list-card-img {
            width: 220px;
            min-height: 180px;
            flex-shrink: 0;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .list-card-body {
            padding: 20px 24px 20px 0;
            flex: 1;
        }
        .list-card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-bottom: 8px;
        }
        .list-card-body .card-meta .date {
            color: var(--color-accent);
            font-weight: 500;
        }
        .list-card-body h3 {
            font-size: 1.15rem;
            font-weight: 650;
            color: var(--color-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .list-card-body p {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .list-card-body .card-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 92px;
        }
        .sidebar-block {
            background-color: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-side);
            padding: 20px;
            box-shadow: var(--shadow-sm);
        }
        .sidebar-block h4 {
            font-size: 1rem;
            font-weight: 650;
            color: var(--color-primary);
            margin-bottom: 16px;
            position: relative;
            padding-left: 14px;
        }
        .sidebar-block h4::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 18px;
            background-color: var(--color-accent);
            border-radius: 2px;
        }
        .sidebar-reco-item {
            display: flex;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid var(--color-border);
            align-items: center;
        }
        .sidebar-reco-item:last-child {
            border-bottom: none;
        }
        .sidebar-reco-item img {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-btn);
            object-fit: cover;
            flex-shrink: 0;
        }
        .sidebar-reco-item .reco-info {
            flex: 1;
            min-width: 0;
        }
        .sidebar-reco-item .reco-info a {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            display: block;
            line-height: 1.4;
            transition: color 0.2s ease;
        }
        .sidebar-reco-item .reco-info a:hover {
            color: var(--color-accent);
        }
        .sidebar-reco-item .reco-info span {
            font-size: 12px;
            color: var(--color-text-secondary);
        }
        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-tags a {
            font-size: 13px;
            padding: 5px 12px;
            border-radius: var(--radius-badge);
            background-color: var(--color-surface);
            color: var(--color-text-secondary);
            border: 1px solid var(--color-border);
            transition: all 0.25s ease;
        }
        .sidebar-tags a:hover {
            background-color: var(--color-ice-soft);
            color: var(--color-ice);
            border-color: var(--color-ice);
        }
        .sidebar-form {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .sidebar-form input {
            font-size: 14px;
            padding: 10px 14px;
        }

        /* Related recommendation */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .related-card {
            background-color: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            cursor: pointer;
        }
        .related-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-ice);
            transform: translateY(-3px);
        }
        .related-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }
        .related-card-body {
            padding: 16px 18px;
        }
        .related-card-body h3 {
            font-size: 1rem;
            font-weight: 650;
            color: var(--color-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .related-card-body p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.6;
            margin-bottom: 10px;
        }
        .related-card-body a {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .related-card-body a .fa-arrow-right {
            font-size: 12px;
            transition: transform 0.25s ease;
        }
        .related-card-body a:hover .fa-arrow-right {
            transform: translateX(4px);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
        }
        .faq-item {
            background-color: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            overflow: hidden;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }
        .faq-item summary {
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 650;
            color: var(--color-primary);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .fa-chevron-down {
            font-size: 14px;
            color: var(--color-text-secondary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item[open] summary .fa-chevron-down {
            transform: rotate(180deg);
        }
        .faq-item[open] {
            border-left: 3px solid var(--color-accent);
            box-shadow: var(--shadow-sm);
        }
        .faq-item .faq-body {
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.8;
        }

        /* CTA section */
        .cta-section {
            background-color: var(--color-primary);
            background-image: radial-gradient(ellipse at 50% 120%, #143652 0%, #0B1D2C 65%);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            bottom: -120px;
            left: 50%;
            transform: translateX(-50%);
            width: 180%;
            height: 200px;
            background-color: var(--color-surface);
            border-radius: 50% 50% 0 0;
            opacity: 0.05;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: clamp(1.8rem, 4vw, 2.4rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 28px;
        }

        /* Footer */
        .site-footer {
            background-color: var(--color-primary);
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 0.9fr 0.9fr 0.9fr 1fr;
            gap: 32px;
            padding-top: 56px;
            padding-bottom: 40px;
        }
        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .footer-brand .nav-logo {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 650;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            padding: 4px 0;
            transition: color 0.2s ease;
        }
        .footer-col a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0 28px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.7;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        .footer-bottom .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 6px;
        }
        .footer-bottom .footer-links a {
            font-size: 13px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .tier-grid {
                grid-template-columns: 1fr 1fr;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-top {
                grid-template-columns: 1fr 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .content-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .sidebar {
                position: static;
            }
            .nav-channels {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .nav-search {
                display: none;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-gap: var(--section-gap-mobile);
                --container-pad: var(--container-pad-mobile);
                --nav-height: 64px;
            }
            .container {
                padding-left: var(--container-pad);
                padding-right: var(--container-pad);
            }
            .section {
                padding-top: var(--section-gap);
                padding-bottom: var(--section-gap);
            }
            .page-hero {
                padding: 32px 0 40px;
            }
            .deep-content {
                padding: 24px 20px;
            }
            .tier-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 20px;
                padding-top: 40px;
                padding-bottom: 28px;
            }
            .footer-brand {
                grid-column: 1;
            }
            .list-card {
                flex-direction: column;
            }
            .list-card-img {
                width: 100%;
                height: 200px;
                min-height: auto;
            }
            .list-card-body {
                padding: 16px 18px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 14px;
            }
            .btn-nav-publish,
            .btn-nav-login {
                padding: 7px 14px;
                font-size: 13px;
            }
            .nav-right {
                gap: 8px;
            }
        }
        @media (max-width: 520px) {
            .tag-group {
                gap: 8px;
            }
            .tag-filter {
                padding: 6px 14px;
                font-size: 13px;
            }
            .deep-content p,
            .deep-content ul,
            .deep-content ol {
                font-size: 16px;
            }
            .list-card-body h3 {
                font-size: 1rem;
            }
            .sidebar {
                gap: 16px;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #0B1D2C;
            --color-primary-light: #143652;
            --color-surface: #F4F9FC;
            --color-card: #FFFFFF;
            --color-accent: #F26B3A;
            --color-accent-hover: #D9531F;
            --color-ice: #4EA8DE;
            --color-ice-soft: #E3F0F7;
            --color-text: #162B3D;
            --color-text-secondary: #5A6F80;
            --color-border: #D9E6EE;
            --color-bg-hero: #0B1D2C;
            --color-success: #2D9C6E;
            --color-warm: #F5B841;
            --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "HanHei SC", system-ui, sans-serif;
            --font-num: "DIN Alternate", "Oswald", "Barlow Condensed", sans-serif;
            --shadow-sm: 0 2px 12px rgba(11, 29, 44, 0.06);
            --shadow-md: 0 6px 20px rgba(11, 29, 44, 0.12);
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-input: 6px;
            --radius-badge: 999px;
            --radius-side: 10px;
            --section-gap: 96px;
            --section-gap-mobile: 48px;
            --container-max: 1280px;
            --container-pad: 24px;
            --container-pad-mobile: 16px;
            --nav-height: 72px;
        }
        @media (max-width: 768px) {
            :root {
                --section-gap: var(--section-gap-mobile);
                --container-pad: var(--container-pad-mobile);
                --nav-height: 64px;
            }
        }

        /* ============ Reset & Base ============ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 18px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-surface);
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--color-ice);
            text-decoration: none;
            transition: color 0.2s ease, text-decoration 0.2s ease;
        }
        a:hover {
            color: var(--color-accent);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(78, 168, 222, 0.45);
            outline-offset: 2px;
            border-radius: 4px;
        }
        button {
            font-family: var(--font-sans);
            cursor: pointer;
            border: none;
            background: none;
            font-size: 16px;
            font-weight: 600;
            transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.15s ease, box-shadow 0.25s ease;
        }
        button:active {
            transform: scale(0.98);
        }
        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 16px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-input);
            padding: 10px 14px;
            background-color: #fff;
            color: var(--color-text);
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
            width: 100%;
        }
        input:focus,
        textarea:focus,
        select:focus {
            border-color: var(--color-ice);
            box-shadow: 0 0 0 3px rgba(78, 168, 222, 0.18);
            outline: none;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: var(--container-pad);
            padding-right: var(--container-pad);
        }
        .section {
            padding-top: var(--section-gap);
            padding-bottom: var(--section-gap);
        }
        .section-tight {
            padding-top: 60px;
            padding-bottom: 60px;
        }
        .section-alt {
            background-color: #fff;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 12px;
            position: relative;
            padding-left: 18px;
        }
        .section-label::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 10px;
            height: 3px;
            background-color: var(--color-accent);
            border-radius: 2px;
        }
        .section-title {
            font-size: clamp(1.8rem, 4vw, 2.4rem);
            line-height: 1.2;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--color-primary);
            margin-bottom: 16px;
        }
        .section-desc {
            font-size: 18px;
            line-height: 1.8;
            color: var(--color-text-secondary);
            margin-bottom: 40px;
            max-width: 760px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 16px;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.15s ease, box-shadow 0.25s ease;
            text-decoration: none;
            white-space: nowrap;
            line-height: 1.4;
        }
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-primary {
            background-color: var(--color-accent);
            color: #fff;
        }
        .btn-primary:hover {
            background-color: var(--color-accent-hover);
            color: #fff;
        }
        .btn-ghost {
            background-color: transparent;
            color: var(--color-primary);
            border: 1.5px solid var(--color-primary);
        }
        .btn-ghost:hover {
            background-color: var(--color-primary);
            color: #fff;
        }
        .btn-ghost-light {
            background-color: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.6);
        }
        .btn-ghost-light:hover {
            background-color: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
        }
        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
            line-height: 1.5;
        }
        .badge-accent {
            background-color: var(--color-accent);
            color: #fff;
        }
        .badge-ice {
            background-color: var(--color-ice-soft);
            color: var(--color-ice);
        }
        .badge-warm {
            background-color: var(--color-warm);
            color: var(--color-primary);
        }
        .badge-success {
            background-color: var(--color-success);
            color: #fff;
        }

        /* ============ Navigation ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: var(--color-primary);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 1px 8px rgba(11, 29, 44, 0.15);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
        }
        .nav-left {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #fff;
            text-decoration: none;
            font-size: 18px;
            font-weight: 700;
            letter-spacing: -0.01em;
        }
        .nav-logo:hover {
            color: #fff;
        }
        .nav-logo-text {
            font-family: var(--font-sans);
            font-size: 19px;
            font-weight: 700;
            white-space: nowrap;
        }
        .nav-logo-text span {
            color: var(--color-accent);
        }
        .nav-channels {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }
        .nav-channels::-webkit-scrollbar {
            display: none;
        }
        .nav-channels a {
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            font-weight: 500;
            padding: 6px 12px;
            border-radius: 6px;
            white-space: nowrap;
            transition: background-color 0.2s ease, color 0.2s ease;
            letter-spacing: 0.02em;
        }
        .nav-channels a:hover {
            color: #fff;
            background-color: rgba(255, 255, 255, 0.1);
        }
        .nav-channels a.active {
            color: #fff;
            background-color: var(--color-accent);
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-search {
            position: relative;
            display: flex;
            align-items: center;
        }
        .nav-search input {
            width: 180px;
            padding: 8px 14px 8px 36px;
            font-size: 13px;
            border-radius: var(--radius-input);
            border: 1px solid rgba(255, 255, 255, 0.25);
            background-color: rgba(255, 255, 255, 0.08);
            color: #fff;
            transition: border-color 0.25s ease, background-color 0.25s ease;
        }
        .nav-search input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .nav-search input:focus {
            border-color: var(--color-ice);
            background-color: rgba(255, 255, 255, 0.14);
            box-shadow: 0 0 0 3px rgba(78, 168, 222, 0.2);
            outline: none;
        }
        .nav-search .search-icon {
            position: absolute;
            left: 12px;
            top: 50%;
            transform: translateY(-50%);
            color: rgba(255, 255, 255, 0.55);
            pointer-events: none;
            font-size: 14px;
        }
        .nav-btn-login {
            padding: 8px 16px;
            border-radius: var(--radius-btn);
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            background: transparent;
            white-space: nowrap;
        }
        .nav-btn-login:hover {
            border-color: #fff;
            background-color: rgba(255, 255, 255, 0.1);
            color: #fff;
        }
        .nav-btn-publish {
            padding: 8px 18px;
            border-radius: var(--radius-btn);
            background-color: var(--color-accent);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
        }
        .nav-btn-publish:hover {
            background-color: var(--color-accent-hover);
            color: #fff;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: none;
            padding: 8px;
            cursor: pointer;
        }
        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background-color: #fff;
            border-radius: 2px;
            transition: transform 0.25s ease, opacity 0.25s ease;
        }
        .mobile-drawer {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background-color: var(--color-primary);
            z-index: 999;
            padding: 24px 20px;
            overflow-y: auto;
            flex-direction: column;
            gap: 8px;
        }
        .mobile-drawer.open {
            display: flex;
        }
        .mobile-drawer a {
            color: #fff;
            font-size: 17px;
            font-weight: 500;
            padding: 12px 16px;
            border-radius: 8px;
            transition: background-color 0.2s ease;
        }
        .mobile-drawer a:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: #fff;
        }
        .mobile-drawer a.active {
            background-color: var(--color-accent);
            color: #fff;
        }

        /* ============ Breadcrumb & Page Hero ============ */
        .page-hero {
            background-color: var(--color-bg-hero);
            background-image: radial-gradient(ellipse at 30% 20%, rgba(78, 168, 222, 0.25) 0%, transparent 50%), radial-gradient(ellipse at 75% 70%, rgba(242, 107, 58, 0.16) 0%, transparent 50%);
            padding: 60px 0 56px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-ice) 50%, var(--color-accent) 100%);
            opacity: 0.7;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .breadcrumb .separator {
            color: rgba(255, 255, 255, 0.4);
        }
        .breadcrumb .current {
            color: var(--color-accent);
            font-weight: 600;
        }
        .page-hero h1 {
            font-size: clamp(2rem, 5vw, 3rem);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
            color: #fff;
        }
        .page-hero .hero-desc {
            font-size: 18px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.8);
            max-width: 720px;
        }
        .hero-stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            margin-top: 28px;
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .hero-stat .stat-num {
            font-family: var(--font-num);
            font-size: clamp(1.5rem, 3vw, 2rem);
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
        }
        .hero-stat .stat-num span {
            color: var(--color-accent);
        }
        .hero-stat .stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            font-weight: 500;
        }

        /* ============ Filter Tag Bar ============ */
        .filter-section {
            padding: 28px 0;
            background-color: #fff;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: var(--nav-height);
            z-index: 100;
        }
        .filter-tags {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            align-items: center;
        }
        .filter-tags .tag {
            display: inline-block;
            padding: 7px 18px;
            border-radius: var(--radius-badge);
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-secondary);
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            cursor: pointer;
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        .filter-tags .tag:hover {
            border-color: var(--color-ice);
            color: var(--color-primary);
            background-color: var(--color-ice-soft);
        }
        .filter-tags .tag.active {
            background-color: var(--color-accent);
            border-color: var(--color-accent);
            color: #fff;
        }

        /* ============ Content List Section ============ */
        .content-list-section {
            padding-top: 48px;
            padding-bottom: var(--section-gap);
        }
        .content-layout {
            display: grid;
            grid-template-columns: 320px 1fr;
            gap: 32px;
            align-items: start;
        }
        /* 偶数页：侧栏在左，列表在右 */
        .content-layout .sidebar {
            order: 1;
        }
        .content-layout .list-main {
            order: 2;
        }
        .sidebar-block {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-side);
            padding: 20px;
            margin-bottom: 20px;
            box-shadow: var(--shadow-sm);
        }
        .sidebar-block h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 14px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--color-ice-soft);
        }
        .sidebar-hot-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .sidebar-hot-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--color-text);
            line-height: 1.5;
        }
        .sidebar-hot-list .hot-rank {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            border-radius: 6px;
            background-color: var(--color-ice-soft);
            color: var(--color-ice);
            font-weight: 700;
            font-size: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .sidebar-hot-list .hot-rank.top {
            background-color: var(--color-accent);
            color: #fff;
        }
        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-tags .mini-tag {
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 500;
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            color: var(--color-text-secondary);
            cursor: pointer;
            transition: all 0.2s ease;
        }
        .sidebar-tags .mini-tag:hover {
            border-color: var(--color-ice);
            color: var(--color-primary);
        }
        .sidebar-form {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .list-main {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .list-item-card {
            display: grid;
            grid-template-columns: 200px 1fr;
            gap: 20px;
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 16px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }
        .list-item-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: var(--color-ice);
        }
        .list-item-cover {
            width: 100%;
            aspect-ratio: 16/10;
            border-radius: 8px;
            overflow: hidden;
            background-color: var(--color-ice-soft);
        }
        .list-item-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .list-item-body {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .list-item-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--color-text-secondary);
        }
        .list-item-meta .date {
            font-weight: 600;
            color: var(--color-accent);
        }
        .list-item-meta .tag-chip {
            padding: 2px 10px;
            border-radius: var(--radius-badge);
            font-size: 11px;
            background-color: var(--color-ice-soft);
            color: var(--color-ice);
            font-weight: 500;
        }
        .list-item-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.3;
        }
        .list-item-card .item-desc {
            font-size: 14px;
            line-height: 1.7;
            color: var(--color-text-secondary);
        }
        .list-item-card .item-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-accent);
            text-decoration: none;
            align-self: flex-start;
            transition: color 0.2s ease;
        }
        .list-item-card .item-link:hover {
            color: var(--color-accent-hover);
        }

        /* ============ Deep Content Section ============ */
        .deep-content {
            background-color: #fff;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
            padding-top: var(--section-gap);
            padding-bottom: var(--section-gap);
        }
        .deep-content .article-body {
            max-width: 820px;
            margin: 0 auto;
        }
        .deep-content .article-body h2 {
            font-size: clamp(1.5rem, 3vw, 1.8rem);
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 18px;
            line-height: 1.3;
        }
        .deep-content .article-body h3 {
            font-size: clamp(1.15rem, 2.5vw, 1.35rem);
            font-weight: 650;
            color: var(--color-primary);
            margin: 28px 0 12px;
            line-height: 1.3;
        }
        .deep-content .article-body p {
            font-size: 18px;
            line-height: 1.9;
            color: var(--color-text);
            margin-bottom: 16px;
        }
        .deep-content .article-body ul {
            margin: 0 0 20px 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .deep-content .article-body ul li {
            font-size: 17px;
            line-height: 1.8;
            color: var(--color-text);
            padding-left: 8px;
        }
        .deep-content .article-body ul li::marker {
            color: var(--color-accent);
        }
        .deep-content .article-body blockquote {
            border-left: 3px solid var(--color-accent);
            padding: 14px 20px;
            background-color: var(--color-surface);
            border-radius: 0 8px 8px 0;
            margin: 20px 0;
            font-size: 17px;
            line-height: 1.8;
            color: var(--color-text-secondary);
            font-style: italic;
        }
        .article-figure {
            margin: 24px 0;
            border-radius: var(--radius-card);
            overflow: hidden;
            background-color: var(--color-ice-soft);
            aspect-ratio: 16/8;
        }
        .article-figure img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ============ Related Section ============ */
        .related-section {
            padding-top: var(--section-gap);
            padding-bottom: var(--section-gap);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 24px;
        }
        .related-card {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }
        .related-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: var(--color-ice);
        }
        .related-card .related-cover {
            aspect-ratio: 16/10;
            overflow: hidden;
            background-color: var(--color-ice-soft);
        }
        .related-card .related-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .related-card .related-body {
            padding: 14px 16px 16px;
        }
        .related-card h4 {
            font-size: 0.95rem;
            font-weight: 650;
            color: var(--color-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .related-card .related-tag {
            display: inline-block;
            font-size: 11px;
            font-weight: 600;
            color: var(--color-accent);
            background-color: rgba(242, 107, 58, 0.1);
            padding: 2px 10px;
            border-radius: var(--radius-badge);
        }

        /* ============ FAQ Section ============ */
        .faq-section {
            background-color: #fff;
            border-top: 1px solid var(--color-border);
            padding-top: var(--section-gap);
            padding-bottom: var(--section-gap);
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: 8px;
            overflow: hidden;
            transition: border-color 0.25s ease;
        }
        .faq-item.active {
            border-left: 3px solid var(--color-accent);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 16px 20px;
            font-size: 16px;
            font-weight: 650;
            color: var(--color-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            background: none;
            border: none;
        }
        .faq-question .faq-icon {
            font-size: 18px;
            color: var(--color-accent);
            transition: transform 0.25s ease;
        }
        .faq-item.active .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            font-size: 15px;
            line-height: 1.8;
            color: var(--color-text-secondary);
            padding-left: 20px;
            padding-right: 20px;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-bottom: 16px;
            padding-top: 4px;
        }

        /* ============ CTA Section ============ */
        .cta-section {
            background-color: var(--color-primary);
            padding: 64px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            left: 50%;
            transform: translateX(-50%);
            width: 500px;
            height: 120px;
            border-radius: 50%;
            background-color: rgba(78, 168, 222, 0.12);
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.2rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section .cta-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 24px;
        }
        .cta-section .btn {
            font-size: 17px;
            padding: 14px 32px;
        }

        /* ============ Footer ============ */
        .site-footer {
            background-color: var(--color-primary);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            margin-top: 12px;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .footer-col {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            letter-spacing: 0.04em;
        }
        .footer-col a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        .footer-col a:hover {
            color: var(--color-accent);
        }
        .footer-mid {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            flex-wrap: wrap;
        }
        .footer-subscribe {
            display: flex;
            gap: 10px;
            align-items: center;
            flex-wrap: wrap;
        }
        .footer-subscribe input {
            width: 240px;
            padding: 10px 16px;
            border-radius: var(--radius-input);
            border: 1px solid rgba(255, 255, 255, 0.25);
            background-color: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 14px;
        }
        .footer-subscribe input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-subscribe input:focus {
            border-color: var(--color-ice);
            box-shadow: 0 0 0 3px rgba(78, 168, 222, 0.2);
            outline: none;
        }
        .footer-socials {
            display: flex;
            gap: 12px;
        }
        .footer-socials .social-icon {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 15px;
            transition: background-color 0.2s ease, border-color 0.2s ease;
            text-decoration: none;
        }
        .footer-socials .social-icon:hover {
            background-color: var(--color-accent);
            border-color: var(--color-accent);
            color: #fff;
        }
        .footer-bottom {
            padding-top: 20px;
            font-size: 12px;
            line-height: 2;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* ============ Responsive ============ */
        @media (max-width: 1024px) {
            .content-layout {
                grid-template-columns: 1fr;
            }
            .content-layout .sidebar {
                order: 2;
            }
            .content-layout .list-main {
                order: 1;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-top {
                grid-template-columns: repeat(3, 1fr);
                gap: 24px;
            }
            .footer-brand {
                grid-column: span 3;
            }
        }
        @media (max-width: 768px) {
            .nav-channels {
                display: none;
            }
            .nav-search {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .site-header .container {
                gap: 8px;
            }
            .nav-right {
                gap: 6px;
            }
            .nav-btn-login {
                padding: 7px 12px;
                font-size: 13px;
            }
            .nav-btn-publish {
                padding: 7px 14px;
                font-size: 13px;
            }
            .page-hero {
                padding: 40px 0 36px;
            }
            .hero-stats-row {
                gap: 16px;
            }
            .list-item-card {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .list-item-cover {
                aspect-ratio: 16/9;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .footer-brand {
                grid-column: span 2;
            }
            .footer-mid {
                flex-direction: column;
                align-items: stretch;
            }
            .footer-subscribe {
                flex-direction: column;
            }
            .footer-subscribe input {
                width: 100%;
            }
            .filter-section {
                top: var(--nav-height);
            }
        }
        @media (max-width: 520px) {
            .footer-top {
                grid-template-columns: 1fr;
            }
            .footer-brand {
                grid-column: span 1;
            }
            .hero-stats-row {
                flex-wrap: wrap;
                gap: 12px;
            }
            .hero-stat {
                min-width: 45%;
            }
            .filter-tags {
                gap: 6px;
            }
            .filter-tags .tag {
                padding: 5px 12px;
                font-size: 12px;
            }
            .list-item-card {
                padding: 12px;
            }
            .list-item-card h3 {
                font-size: 1rem;
            }
            .deep-content .article-body p {
                font-size: 16px;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #0B1D2C;
            --color-primary-light: #143652;
            --color-surface: #F4F9FC;
            --color-card: #FFFFFF;
            --color-accent: #F26B3A;
            --color-accent-hover: #D9531F;
            --color-ice: #4EA8DE;
            --color-ice-soft: #E3F0F7;
            --color-text: #162B3D;
            --color-text-secondary: #5A6F80;
            --color-border: #D9E6EE;
            --color-bg-hero: #0B1D2C;
            --color-success: #2D9C6E;
            --color-warm: #F5B841;
            --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "HanHei SC", system-ui, sans-serif;
            --font-num: "DIN Alternate", "Oswald", "Barlow Condensed", sans-serif;
            --shadow-sm: 0 2px 12px rgba(11, 29, 44, 0.06);
            --shadow-md: 0 6px 20px rgba(11, 29, 44, 0.12);
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-input: 6px;
            --radius-badge: 999px;
            --radius-side: 10px;
            --section-gap: 96px;
            --section-gap-mobile: 48px;
            --container-max: 1280px;
            --container-pad: 24px;
            --container-pad-mobile: 16px;
            --nav-height: 72px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 18px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-surface);
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--color-ice);
            text-decoration: none;
            transition: color 0.2s ease, text-decoration 0.2s ease;
        }
        a:hover {
            color: var(--color-accent);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(78, 168, 222, 0.45);
            outline-offset: 2px;
            border-radius: 4px;
        }
        button {
            font-family: var(--font-sans);
            cursor: pointer;
            border: none;
            background: none;
            font-size: 16px;
            font-weight: 600;
            transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.15s ease, box-shadow 0.25s ease;
        }
        button:active {
            transform: scale(0.98);
        }
        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 16px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-input);
            padding: 10px 14px;
            background-color: #fff;
            color: var(--color-text);
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
            width: 100%;
        }
        input:focus,
        textarea:focus,
        select:focus {
            border-color: var(--color-ice);
            box-shadow: 0 0 0 3px rgba(78, 168, 222, 0.18);
            outline: none;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: var(--container-pad);
            padding-right: var(--container-pad);
        }
        .section {
            padding-top: var(--section-gap);
            padding-bottom: var(--section-gap);
        }
        .section-tight {
            padding-top: 60px;
            padding-bottom: 60px;
        }
        .section-alt {
            background-color: #fff;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 12px;
            position: relative;
            padding-left: 18px;
        }
        .section-label::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 10px;
            height: 3px;
            background-color: var(--color-accent);
            border-radius: 2px;
        }
        .section-title {
            font-size: clamp(1.8rem, 4vw, 2.4rem);
            line-height: 1.2;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--color-primary);
            margin-bottom: 16px;
        }
        .section-desc {
            font-size: 18px;
            line-height: 1.8;
            color: var(--color-text-secondary);
            margin-bottom: 40px;
            max-width: 760px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 16px;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.15s ease, box-shadow 0.25s ease;
            text-decoration: none;
            white-space: nowrap;
            line-height: 1.4;
        }
        .btn-primary {
            background-color: var(--color-accent);
            color: #fff;
        }
        .btn-primary:hover {
            background-color: var(--color-accent-hover);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .btn-ghost {
            background-color: transparent;
            color: var(--color-primary);
            border: 1px solid var(--color-border);
        }
        .btn-ghost:hover {
            border-color: var(--color-ice);
            background-color: var(--color-ice-soft);
            color: var(--color-primary);
        }
        .btn-ghost-light {
            background-color: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.5);
        }
        .btn-ghost-light:hover {
            background-color: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
        }
        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            font-size: 13px;
            font-weight: 500;
            line-height: 1.5;
            letter-spacing: 0.02em;
        }
        .badge-accent {
            background-color: var(--color-accent);
            color: #fff;
        }
        .badge-ice {
            background-color: var(--color-ice-soft);
            color: var(--color-primary-light);
        }
        .badge-success {
            background-color: #E6F5EE;
            color: var(--color-success);
        }
        .badge-warm {
            background-color: #FEF5E6;
            color: #B87616;
        }
        /* Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: var(--nav-height);
            background-color: rgba(11, 29, 44, 0.96);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            text-decoration: none;
        }
        .nav-logo-text {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .nav-logo-text span {
            color: var(--color-accent);
        }
        .nav-channels {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .nav-channels::-webkit-scrollbar {
            display: none;
        }
        .nav-channels a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.75);
            border-radius: var(--radius-btn);
            white-space: nowrap;
            transition: color 0.2s ease, background-color 0.2s ease;
        }
        .nav-channels a:hover {
            color: #fff;
            background-color: rgba(255, 255, 255, 0.08);
        }
        .nav-channels a.active {
            color: #fff;
            background-color: rgba(242, 107, 58, 0.22);
            box-shadow: inset 0 0 0 1px rgba(242, 107, 58, 0.55);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-search {
            position: relative;
            width: 180px;
        }
        .nav-search input {
            width: 100%;
            padding: 8px 12px 8px 36px;
            font-size: 14px;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(255, 255, 255, 0.2);
            background-color: rgba(255, 255, 255, 0.08);
            color: #fff;
            transition: border-color 0.25s ease, background-color 0.25s ease, box-shadow 0.25s ease;
        }
        .nav-search input::placeholder {
            color: rgba(255, 255, 255, 0.55);
        }
        .nav-search input:focus {
            border-color: var(--color-ice);
            background-color: rgba(255, 255, 255, 0.14);
            box-shadow: 0 0 0 3px rgba(78, 168, 222, 0.25);
            outline: none;
        }
        .nav-search .search-icon {
            position: absolute;
            left: 12px;
            top: 50%;
            transform: translateY(-50%);
            color: rgba(255, 255, 255, 0.6);
            pointer-events: none;
            font-size: 14px;
        }
        .btn-login {
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 500;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.35);
            border-radius: var(--radius-btn);
            background: none;
            white-space: nowrap;
        }
        .btn-login:hover {
            background-color: rgba(255, 255, 255, 0.1);
            border-color: #fff;
        }
        .btn-publish {
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            background-color: var(--color-accent);
            border-radius: var(--radius-btn);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .btn-publish:hover {
            background-color: var(--color-accent-hover);
            box-shadow: var(--shadow-sm);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
        }
        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: #fff;
            border-radius: 2px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-drawer {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background-color: var(--color-primary);
            z-index: 99;
            padding: 16px 24px 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            max-height: calc(100vh - var(--nav-height));
            overflow-y: auto;
        }
        .mobile-drawer.open {
            display: block;
        }
        .mobile-drawer a {
            display: block;
            padding: 12px 16px;
            font-size: 16px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.85);
            border-radius: var(--radius-btn);
            transition: background-color 0.2s ease, color 0.2s ease;
        }
        .mobile-drawer a:hover {
            background-color: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        .mobile-drawer a.active {
            background-color: rgba(242, 107, 58, 0.25);
            color: #fff;
            box-shadow: inset 0 0 0 1px rgba(242, 107, 58, 0.5);
        }
        /* Breadcrumb */
        .breadcrumb-section {
            padding: 32px 0 0;
            background-color: var(--color-surface);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-text-secondary);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-ice);
        }
        .breadcrumb a:hover {
            color: var(--color-accent);
            text-decoration: underline;
        }
        .breadcrumb .sep {
            color: var(--color-border);
        }
        .breadcrumb .current {
            color: var(--color-accent);
            font-weight: 600;
        }
        /* Category Hero */
        .category-hero {
            padding: 40px 0 48px;
            background-color: var(--color-surface);
        }
        .category-hero .container {
            display: grid;
            grid-template-columns: 1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }
        .category-hero h1 {
            font-size: clamp(2.2rem, 5vw, 3.2rem);
            line-height: 1.15;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.01em;
            margin-bottom: 20px;
        }
        .category-hero .hero-desc {
            font-size: 18px;
            line-height: 1.8;
            color: var(--color-text-secondary);
            max-width: 580px;
        }
        .category-hero .hero-visual {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            aspect-ratio: 16/10;
            box-shadow: var(--shadow-md);
        }
        .category-hero .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .category-hero .hero-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 29, 44, 0.45) 0%, rgba(11, 29, 44, 0.08) 60%);
            pointer-events: none;
        }
        /* Stats Section */
        .stats-section {
            background-color: #fff;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
            padding: 40px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 16px 12px;
        }
        .stat-num {
            font-family: var(--font-num);
            font-size: clamp(1.8rem, 3.5vw, 2.4rem);
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-num .accent {
            color: var(--color-accent);
        }
        .stat-label {
            font-size: 14px;
            color: var(--color-text-secondary);
            font-weight: 500;
        }
        /* Deep Content Section */
        .deep-content {
            background-color: var(--color-surface);
        }
        .deep-content .container {
            max-width: 880px;
        }
        .deep-content .content-body h2 {
            font-size: clamp(1.5rem, 3vw, 1.9rem);
            line-height: 1.3;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 20px;
        }
        .deep-content .content-body h3 {
            font-size: clamp(1.2rem, 2.5vw, 1.4rem);
            line-height: 1.35;
            font-weight: 650;
            color: var(--color-primary);
            margin: 32px 0 12px;
        }
        .deep-content .content-body p {
            font-size: 18px;
            line-height: 1.85;
            color: var(--color-text);
            margin-bottom: 18px;
        }
        .deep-content .content-body ul,
        .deep-content .content-body ol {
            margin: 16px 0 20px 24px;
            font-size: 18px;
            line-height: 1.85;
            color: var(--color-text);
        }
        .deep-content .content-body li {
            margin-bottom: 8px;
        }
        .deep-content .content-body blockquote {
            margin: 24px 0;
            padding: 20px 24px;
            background-color: var(--color-ice-soft);
            border-left: 4px solid var(--color-ice);
            border-radius: 0 var(--radius-card) var(--radius-card) 0;
            font-style: italic;
            color: var(--color-text-secondary);
            font-size: 17px;
            line-height: 1.75;
        }
        /* Accordion Filter */
        .accordion-filter-section {
            background-color: #fff;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .accordion-filter-section .container {
            max-width: 880px;
        }
        .accordion-filter {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .accordion-item {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }
        .accordion-item.active {
            border-left: 3px solid var(--color-accent);
            border-color: var(--color-accent);
            box-shadow: var(--shadow-sm);
        }
        .accordion-trigger {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 16px 20px;
            background: none;
            border: none;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            gap: 12px;
            text-align: left;
            transition: background-color 0.2s ease;
        }
        .accordion-trigger:hover {
            background-color: var(--color-surface);
        }
        .accordion-trigger .accordion-icon {
            font-size: 20px;
            color: var(--color-accent);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .accordion-item.active .accordion-icon {
            transform: rotate(180deg);
        }
        .accordion-panel {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 20px;
        }
        .accordion-item.active .accordion-panel {
            max-height: 400px;
            padding: 0 20px 20px;
        }
        .accordion-panel p {
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-text-secondary);
        }
        /* Content List Section */
        .content-list-section {
            background-color: var(--color-surface);
        }
        .content-list-grid {
            display: grid;
            grid-template-columns: 320px 1fr;
            gap: 32px;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .sidebar-block {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-side);
            padding: 20px;
        }
        .sidebar-block h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 14px;
            position: relative;
            padding-left: 14px;
        }
        .sidebar-block h4::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 18px;
            background-color: var(--color-accent);
            border-radius: 2px;
        }
        .sidebar-recommend-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .sidebar-recommend-item {
            display: flex;
            gap: 10px;
            align-items: flex-start;
        }
        .sidebar-recommend-item img {
            width: 60px;
            height: 60px;
            border-radius: 8px;
            object-fit: cover;
            flex-shrink: 0;
        }
        .sidebar-recommend-item .rec-text {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text);
            line-height: 1.5;
        }
        .sidebar-recommend-item .rec-text a {
            color: var(--color-text);
        }
        .sidebar-recommend-item .rec-text a:hover {
            color: var(--color-accent);
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud .tag {
            display: inline-block;
            padding: 4px 12px;
            font-size: 13px;
            font-weight: 500;
            border-radius: var(--radius-badge);
            background-color: var(--color-ice-soft);
            color: var(--color-primary-light);
            transition: background-color 0.2s ease, color 0.2s ease;
        }
        .tag-cloud .tag:hover {
            background-color: var(--color-accent);
            color: #fff;
        }
        .subscribe-form {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .subscribe-form input {
            padding: 10px 14px;
            font-size: 14px;
            border-radius: var(--radius-input);
        }
        .subscribe-form .btn {
            width: 100%;
            padding: 10px;
            font-size: 15px;
        }
        .content-list-main {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .content-item-card {
            display: grid;
            grid-template-columns: 200px 1fr;
            gap: 20px;
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px;
            transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.2s ease;
        }
        .content-item-card:hover {
            border-color: var(--color-ice);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .content-item-card .item-image {
            border-radius: 10px;
            overflow: hidden;
            aspect-ratio: 16/10;
        }
        .content-item-card .item-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .content-item-card .item-body {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .content-item-card .item-date {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent);
            letter-spacing: 0.04em;
        }
        .content-item-card .item-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.4;
        }
        .content-item-card .item-title a {
            color: var(--color-primary);
        }
        .content-item-card .item-title a:hover {
            color: var(--color-accent);
        }
        .content-item-card .item-excerpt {
            font-size: 15px;
            line-height: 1.7;
            color: var(--color-text-secondary);
        }
        .content-item-card .item-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: 4px;
        }
        .content-item-card .item-tags .badge {
            font-size: 12px;
            padding: 3px 10px;
        }
        /* FAQ Section */
        .faq-section {
            background-color: #fff;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .faq-section .container {
            max-width: 880px;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: 8px;
            overflow: hidden;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }
        .faq-item.active {
            border-left: 3px solid var(--color-accent);
            border-color: var(--color-accent);
            box-shadow: var(--shadow-sm);
        }
        .faq-trigger {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 16px 20px;
            background: none;
            border: none;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            text-align: left;
            gap: 12px;
        }
        .faq-trigger:hover {
            background-color: var(--color-surface);
        }
        .faq-trigger .faq-icon {
            font-size: 20px;
            color: var(--color-accent);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.active .faq-icon {
            transform: rotate(180deg);
        }
        .faq-panel {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 20px;
        }
        .faq-item.active .faq-panel {
            max-height: 500px;
            padding: 0 20px 20px;
        }
        .faq-panel p {
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-text-secondary);
        }
        /* Related Section */
        .related-section {
            background-color: var(--color-surface);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .related-card {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 16px;
            transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.2s ease;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .related-card:hover {
            border-color: var(--color-ice);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .related-card img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            border-radius: 10px;
        }
        .related-card .related-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-primary);
            line-height: 1.4;
        }
        .related-card .related-title a {
            color: var(--color-primary);
        }
        .related-card .related-title a:hover {
            color: var(--color-accent);
        }
        .related-card .related-desc {
            font-size: 14px;
            line-height: 1.6;
            color: var(--color-text-secondary);
        }
        /* CTA Section */
        .cta-section {
            background-color: var(--color-primary);
            padding: 72px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60%;
            left: 50%;
            transform: translateX(-50%);
            width: 120%;
            height: 200%;
            background: radial-gradient(ellipse at center bottom, rgba(78, 168, 222, 0.15) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: clamp(1.8rem, 4vw, 2.4rem);
            font-weight: 700;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 16px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 28px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn {
            font-size: 17px;
            padding: 14px 32px;
        }
        /* Footer */
        .site-footer {
            background-color: var(--color-primary);
            padding-top: 64px;
            padding-bottom: 24px;
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }
        .footer-brand .nav-logo {
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            padding: 4px 0;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }
        .footer-col a:hover {
            color: var(--color-accent);
            padding-left: 4px;
        }
        .footer-subscribe {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .footer-subscribe .subscribe-text {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
        }
        .footer-subscribe .subscribe-form-inline {
            display: flex;
            gap: 10px;
            flex: 1;
            min-width: 280px;
            max-width: 480px;
        }
        .footer-subscribe input {
            flex: 1;
            padding: 10px 16px;
            font-size: 14px;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(255, 255, 255, 0.25);
            background-color: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        .footer-subscribe input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-subscribe input:focus {
            border-color: var(--color-ice);
            box-shadow: 0 0 0 3px rgba(78, 168, 222, 0.25);
            outline: none;
        }
        .footer-subscribe .btn {
            flex-shrink: 0;
        }
        .social-icons {
            display: flex;
            gap: 12px;
        }
        .social-icons a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: rgba(255, 255, 255, 0.7);
            font-size: 16px;
            transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
        }
        .social-icons a:hover {
            border-color: var(--color-accent);
            color: #fff;
            background-color: rgba(242, 107, 58, 0.2);
        }
        .footer-bottom {
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            line-height: 2;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .category-hero .container {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .content-list-grid {
                grid-template-columns: 260px 1fr;
                gap: 24px;
            }
            .content-item-card {
                grid-template-columns: 160px 1fr;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-top {
                grid-template-columns: 1fr 1fr 1fr;
                gap: 24px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-gap: 48px;
                --container-pad: 16px;
                --nav-height: 64px;
            }
            .nav-channels {
                display: none;
            }
            .nav-search {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .category-hero {
                padding: 28px 0 36px;
            }
            .content-list-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                order: 2;
            }
            .content-list-main {
                order: 1;
            }
            .content-item-card {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .content-item-card .item-image {
                aspect-ratio: 16/9;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .btn-publish {
                padding: 8px 12px;
                font-size: 13px;
            }
            .btn-login {
                padding: 8px 12px;
                font-size: 13px;
            }
            .footer-subscribe {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .footer-subscribe .subscribe-form-inline {
                width: 100%;
                max-width: none;
            }
        }
        @media (max-width: 520px) {
            .footer-top {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .category-hero h1 {
                font-size: 1.9rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .deep-content .content-body p {
                font-size: 16px;
            }
        }

/* roulang page: category5 */
:root {
  --color-primary: #0B1D2C;
  --color-primary-light: #143652;
  --color-surface: #F4F9FC;
  --color-card: #FFFFFF;
  --color-accent: #F26B3A;
  --color-accent-hover: #D9531F;
  --color-ice: #4EA8DE;
  --color-ice-soft: #E3F0F7;
  --color-text: #162B3D;
  --color-text-secondary: #5A6F80;
  --color-border: #D9E6EE;
  --color-bg-hero: #0B1D2C;
  --color-success: #2D9C6E;
  --color-warm: #F5B841;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "HanHei SC", system-ui, sans-serif;
  --font-num: "DIN Alternate", "Oswald", "Barlow Condensed", sans-serif;
  --shadow-sm: 0 2px 12px rgba(11, 29, 44, 0.06);
  --shadow-md: 0 6px 20px rgba(11, 29, 44, 0.12);
  --radius-card: 14px;
  --radius-btn: 8px;
  --radius-input: 6px;
  --radius-badge: 999px;
  --radius-side: 10px;
  --section-gap: 96px;
  --section-gap-mobile: 48px;
  --container-max: 1280px;
  --container-pad: 24px;
  --container-pad-mobile: 16px;
  --nav-height: 72px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-sans);font-size:18px;line-height:1.8;color:var(--color-text);background-color:var(--color-surface);min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
img{max-width:100%;height:auto;display:block}
a{color:var(--color-ice);text-decoration:none;transition:color .2s ease,text-decoration .2s ease}
a:hover{color:var(--color-accent)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid rgba(78,168,222,.45);outline-offset:2px;border-radius:4px}
button{font-family:var(--font-sans);cursor:pointer;border:none;background:none;font-size:16px;font-weight:600;transition:background-color .25s ease,color .25s ease,border-color .25s ease,transform .15s ease,box-shadow .25s ease}
button:active{transform:scale(.98)}
input,textarea,select{font-family:var(--font-sans);font-size:16px;border:1px solid var(--color-border);border-radius:var(--radius-input);padding:10px 14px;background-color:#fff;color:var(--color-text);transition:border-color .25s ease,box-shadow .25s ease;width:100%}
input:focus,textarea:focus,select:focus{border-color:var(--color-ice);box-shadow:0 0 0 3px rgba(78,168,222,.18);outline:none}
.container{max-width:var(--container-max);margin:0 auto;padding-left:var(--container-pad);padding-right:var(--container-pad)}
.section{padding-top:var(--section-gap);padding-bottom:var(--section-gap)}
.section-tight{padding-top:60px;padding-bottom:60px}
.section-alt{background-color:#fff;border-top:1px solid var(--color-border);border-bottom:1px solid var(--color-border)}
.section-label{display:inline-block;font-size:13px;font-weight:600;color:var(--color-accent);letter-spacing:.08em;text-transform:uppercase;margin-bottom:12px;position:relative;padding-left:18px}
.section-label::before{content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);width:10px;height:3px;background-color:var(--color-accent);border-radius:2px}
.section-title{font-size:clamp(1.8rem,4vw,2.4rem);line-height:1.2;font-weight:700;letter-spacing:-.01em;color:var(--color-primary);margin-bottom:16px}
.section-desc{font-size:18px;line-height:1.8;color:var(--color-text-secondary);margin-bottom:40px;max-width:760px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--radius-btn);font-size:16px;font-weight:600;letter-spacing:.02em;transition:background-color .25s ease,color .25s ease,border-color .25s ease,transform .15s ease,box-shadow .25s ease;text-decoration:none;white-space:nowrap;line-height:1.4}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:scale(.97)}
.btn-primary{background-color:var(--color-accent);color:#fff}
.btn-primary:hover{background-color:var(--color-accent-hover);color:#fff;box-shadow:var(--shadow-md)}
.btn-ghost-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.45)}
.btn-ghost-light:hover{background:rgba(255,255,255,.1);color:#fff;border-color:#fff}
.btn-outline{background:transparent;color:var(--color-primary);border:1px solid var(--color-border)}
.btn-outline:hover{border-color:var(--color-ice);color:var(--color-ice);background:var(--color-ice-soft)}
.badge{display:inline-flex;align-items:center;gap:4px;padding:4px 12px;border-radius:var(--radius-badge);font-size:13px;font-weight:500;line-height:1.5;background:var(--color-ice-soft);color:var(--color-primary)}
.badge-accent{background:var(--color-accent);color:#fff}
.badge-warm{background:rgba(245,184,65,.18);color:#8a6210}
.badge-success{background:rgba(45,156,110,.14);color:var(--color-success)}

/* Header / Nav */
.site-header{position:sticky;top:0;z-index:100;background:var(--color-primary);height:var(--nav-height);display:flex;align-items:center;box-shadow:0 1px 0 rgba(255,255,255,.06),0 4px 18px rgba(11,29,44,.18)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%}
.nav-left{display:flex;align-items:center;gap:12px;min-width:0}
.nav-logo{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.nav-logo-text{font-size:22px;font-weight:800;color:#fff;letter-spacing:-.01em;white-space:nowrap}
.nav-logo-text span{color:var(--color-accent)}
.nav-channels{display:flex;align-items:center;gap:4px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
.nav-channels::-webkit-scrollbar{display:none}
.nav-channels a{display:inline-flex;align-items:center;padding:8px 14px;border-radius:var(--radius-btn);font-size:15px;font-weight:500;color:rgba(255,255,255,.82);white-space:nowrap;transition:color .2s ease,background-color .2s ease}
.nav-channels a:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav-channels a.active{color:#fff;background:rgba(242,107,58,.18);font-weight:600}
.nav-right{display:flex;align-items:center;gap:10px;flex-shrink:0}
.search-form{display:flex;align-items:center;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:var(--radius-input);padding:0 10px;height:40px;width:190px;transition:border-color .25s ease,background-color .25s ease}
.search-form:focus-within{border-color:var(--color-ice);background:rgba(255,255,255,.14)}
.search-form input{background:none;border:none;padding:0 8px;color:#fff;font-size:14px;height:100%;box-shadow:none!important}
.search-form input::placeholder{color:rgba(255,255,255,.55)}
.search-form input:focus{outline:none;box-shadow:none!important}
.search-form svg{flex-shrink:0}
.btn-nav-ghost{height:40px;padding:0 16px;border-radius:var(--radius-btn);background:transparent;color:#fff;border:1px solid rgba(255,255,255,.4);font-size:14px;display:inline-flex;align-items:center;gap:6px}
.btn-nav-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff;color:#fff}
.btn-nav-primary{height:40px;padding:0 18px;border-radius:var(--radius-btn);background:var(--color-accent);color:#fff;font-size:14px;display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.btn-nav-primary:hover{background:var(--color-accent-hover);color:#fff;box-shadow:0 4px 14px rgba(242,107,58,.35)}
.nav-hamburger{display:none;width:44px;height:44px;border-radius:8px;background:rgba(255,255,255,.08);color:#fff;align-items:center;justify-content:center;font-size:22px}
.mobile-drawer{position:fixed;top:0;left:0;width:320px;height:100vh;background:var(--color-primary);z-index:200;transform:translateX(-105%);transition:transform .3s ease;padding:24px;display:flex;flex-direction:column;gap:16px;box-shadow:4px 0 30px rgba(0,0,0,.35)}
.mobile-drawer.open{transform:translateX(0)}
.mobile-drawer-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.mobile-drawer-header .nav-logo-text{font-size:20px}
.mobile-drawer-close{width:40px;height:40px;border-radius:8px;background:rgba(255,255,255,.1);color:#fff;font-size:20px;display:flex;align-items:center;justify-content:center}
.mobile-drawer nav{display:flex;flex-direction:column;gap:2px}
.mobile-drawer nav a{padding:14px 12px;border-radius:8px;color:rgba(255,255,255,.85);font-size:16px;font-weight:500}
.mobile-drawer nav a:hover{background:rgba(255,255,255,.08);color:#fff}
.mobile-drawer nav a.active{background:rgba(242,107,58,.2);color:#fff}
.drawer-overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:190;opacity:0;pointer-events:none;transition:opacity .3s ease}
.drawer-overlay.open{opacity:1;pointer-events:auto}

/* Breadcrumb */
.breadcrumb-nav{padding:20px 0 0;font-size:14px;color:var(--color-text-secondary)}
.breadcrumb-nav ol{list-style:none;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.breadcrumb-nav li{display:flex;align-items:center;gap:8px}
.breadcrumb-nav li+li::before{content:'/';color:var(--color-border);font-size:14px}
.breadcrumb-nav a{color:var(--color-text-secondary)}
.breadcrumb-nav a:hover{color:var(--color-accent)}
.breadcrumb-nav li[aria-current="page"]{color:var(--color-primary);font-weight:600}

/* Category Hero */
.cat-hero{padding:36px 0 28px}
.cat-hero-badge{display:inline-block;background:var(--color-ice-soft);color:var(--color-primary);font-size:13px;font-weight:600;padding:6px 16px;border-radius:var(--radius-badge);margin-bottom:14px}
.cat-hero h1{font-size:clamp(2rem,5vw,3.2rem);line-height:1.15;font-weight:800;letter-spacing:-.01em;color:var(--color-primary);margin-bottom:16px}
.cat-hero p{font-size:18px;line-height:1.8;color:var(--color-text-secondary);max-width:820px}

/* Deep Article */
.deep-article{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-card);padding:40px 36px;margin-bottom:32px;box-shadow:var(--shadow-sm)}
.deep-article h2{font-size:clamp(1.5rem,3vw,2rem);line-height:1.3;font-weight:700;color:var(--color-primary);margin-bottom:20px}
.deep-article h3{font-size:clamp(1.15rem,2vw,1.4rem);line-height:1.4;font-weight:650;color:var(--color-primary);margin:28px 0 12px}
.deep-article p{font-size:17px;line-height:1.9;color:var(--color-text);margin-bottom:16px}
.deep-article ul,.deep-article ol{margin:0 0 20px 24px;font-size:17px;line-height:1.9;color:var(--color-text)}
.deep-article li{margin-bottom:8px}
.deep-article blockquote{border-left:4px solid var(--color-accent);background:var(--color-surface);padding:16px 20px;border-radius:0 8px 8px 0;font-size:16px;color:var(--color-text-secondary);margin:20px 0;line-height:1.8}
.deep-article .article-meta{display:flex;align-items:center;gap:10px;margin-bottom:18px;font-size:14px;color:var(--color-text-secondary)}
.deep-article .article-meta svg{color:var(--color-accent)}
.deep-article img{border-radius:10px;margin:20px 0;aspect-ratio:16/9;width:100%;object-fit:cover}

/* Accordion Filter */
.accordion-filter{margin-bottom:40px}
.accordion-filter-title{font-size:18px;font-weight:700;color:var(--color-primary);margin-bottom:18px;display:flex;align-items:center;gap:10px}
.accordion-filter-title svg{color:var(--color-accent)}
.accordion-group{border:1px solid var(--color-border);border-radius:10px;margin-bottom:10px;overflow:hidden;background:#fff;transition:border-color .25s ease,box-shadow .25s ease}
.accordion-group:hover{border-color:var(--color-ice)}
.accordion-group.active{border-color:var(--color-ice);box-shadow:0 0 0 3px rgba(78,168,222,.1)}
.accordion-trigger{width:100%;display:flex;align-items:center;justify-content:space-between;padding:16px 20px;background:#fff;font-size:16px;font-weight:600;color:var(--color-primary);border-radius:0;transition:background-color .25s ease}
.accordion-trigger:hover{background:var(--color-surface)}
.accordion-trigger .accordion-icon{width:24px;height:24px;display:flex;align-items:center;justify-content:center;transition:transform .3s ease;color:var(--color-accent);font-size:18px}
.accordion-group.active .accordion-icon{transform:rotate(180deg)}
.accordion-panel{display:none;padding:0 20px 18px;background:#fff}
.accordion-group.active .accordion-panel{display:block}
.accordion-panel .tag-list{display:flex;flex-wrap:wrap;gap:8px}
.accordion-panel .tag-item{display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--radius-badge);background:var(--color-surface);border:1px solid var(--color-border);font-size:14px;font-weight:500;color:var(--color-text-secondary);cursor:pointer;transition:all .2s ease}
.accordion-panel .tag-item:hover{border-color:var(--color-ice);color:var(--color-ice);background:var(--color-ice-soft)}
.accordion-panel .tag-item.active{background:var(--color-accent);color:#fff;border-color:var(--color-accent);font-weight:600}

/* List + Sidebar Layout */
.list-layout{display:grid;grid-template-columns:1fr 350px;gap:32px;margin-bottom:48px}
.article-list{display:flex;flex-direction:column;gap:20px}
.list-item{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-card);padding:20px;display:flex;gap:18px;transition:box-shadow .25s ease,border-color .25s ease,transform .25s ease}
.list-item:hover{box-shadow:var(--shadow-md);border-color:var(--color-ice);transform:translateY(-2px)}
.list-item-thumb{flex-shrink:0;width:180px;height:120px;border-radius:8px;overflow:hidden}
.list-item-thumb img{width:100%;height:100%;object-fit:cover}
.list-item-content{flex:1;display:flex;flex-direction:column;gap:8px;min-width:0}
.list-item-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.list-item-date{font-size:13px;color:var(--color-text-secondary);font-weight:500;display:inline-flex;align-items:center;gap:4px}
.list-item-date svg{color:var(--color-accent)}
.list-item h3{font-size:18px;font-weight:650;line-height:1.4;color:var(--color-primary);margin:0}
.list-item h3 a{color:var(--color-primary)}
.list-item h3 a:hover{color:var(--color-accent)}
.list-item p{font-size:15px;line-height:1.7;color:var(--color-text-secondary);margin:0;flex:1}
.list-item .btn-read-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--color-accent);transition:gap .2s ease}
.list-item .btn-read-more:hover{gap:10px;text-decoration:underline}

/* Sidebar */
.sidebar{display:flex;flex-direction:column;gap:24px}
.sidebar-block{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-side);padding:20px}
.sidebar-block h4{font-size:16px;font-weight:700;color:var(--color-primary);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.sidebar-block h4 svg{color:var(--color-accent)}
.sidebar-reco-item{display:flex;gap:10px;padding:8px 0;border-bottom:1px solid var(--color-border);align-items:flex-start}
.sidebar-reco-item:last-child{border-bottom:none}
.sidebar-reco-item img{width:64px;height:48px;border-radius:6px;object-fit:cover;flex-shrink:0}
.sidebar-reco-item a{font-size:14px;font-weight:500;color:var(--color-text);line-height:1.5}
.sidebar-reco-item a:hover{color:var(--color-accent)}
.sidebar-reco-item span{font-size:12px;color:var(--color-text-secondary);display:block;margin-top:2px}
.hot-tags{display:flex;flex-wrap:wrap;gap:8px}
.hot-tags a{display:inline-flex;padding:4px 12px;border-radius:var(--radius-badge);background:var(--color-surface);border:1px solid var(--color-border);font-size:13px;font-weight:500;color:var(--color-text-secondary);transition:all .2s ease}
.hot-tags a:hover{border-color:var(--color-accent);color:var(--color-accent);background:rgba(242,107,58,.06)}
.sidebar-form{display:flex;flex-direction:column;gap:10px}
.sidebar-form input{font-size:14px;padding:10px 12px}
.sidebar-form .btn{font-size:14px;padding:10px 18px}

/* Related */
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:24px}
.related-card{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-card);overflow:hidden;transition:box-shadow .25s ease,border-color .25s ease,transform .25s ease}
.related-card:hover{box-shadow:var(--shadow-md);border-color:var(--color-ice);transform:translateY(-3px)}
.related-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.related-card-body{padding:16px 18px}
.related-card-body h5{font-size:15px;font-weight:650;color:var(--color-primary);margin-bottom:6px;line-height:1.4}
.related-card-body p{font-size:13px;color:var(--color-text-secondary);line-height:1.6;margin:0}

/* CTA */
.cta-section{background:var(--color-primary);border-radius:0;position:relative;overflow:hidden}
.cta-section::before{content:'';position:absolute;bottom:0;left:0;right:0;height:80px;background:var(--color-surface);border-radius:50% 50% 0 0/100% 100% 0 0;transform:scaleX(1.3)}
.cta-inner{position:relative;text-align:center;padding:72px 24px 96px;max-width:680px;margin:0 auto}
.cta-inner h2{font-size:clamp(1.6rem,4vw,2.4rem);font-weight:800;color:#fff;margin-bottom:14px;line-height:1.25}
.cta-inner p{font-size:16px;color:rgba(255,255,255,.75);margin-bottom:28px;line-height:1.7}
.cta-inner .btn-primary{font-size:17px;padding:14px 32px}
.cta-inner .btn-ghost-light{font-size:17px;padding:14px 32px;margin-left:12px}

/* Footer */
.site-footer{background:var(--color-primary);color:rgba(255,255,255,.85);padding:60px 0 30px;margin-top:0}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1fr;gap:32px;margin-bottom:40px}
.footer-brand .nav-logo{margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.68);max-width:280px}
.footer-col h4{font-size:16px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.68);margin-bottom:8px;transition:color .2s ease}
.footer-col a:hover{color:var(--color-accent)}
.footer-mid{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:20px 0;border-top:1px solid rgba(255,255,255,.12);flex-wrap:wrap}
.footer-subscribe{display:flex;gap:10px;max-width:420px}
.footer-subscribe input{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#fff;border-radius:var(--radius-input)}
.footer-subscribe input::placeholder{color:rgba(255,255,255,.5)}
.footer-subscribe input:focus{border-color:var(--color-ice);box-shadow:0 0 0 3px rgba(78,168,222,.15)}
.footer-subscribe .btn{flex-shrink:0}
.footer-social{display:flex;gap:10px}
.footer-social a{width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.75);transition:background-color .2s ease,color .2s ease}
.footer-social a:hover{background:var(--color-accent);color:#fff}
.footer-bottom{padding-top:24px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;line-height:2;color:rgba(255,255,255,.55);text-align:center}
.footer-bottom a{color:rgba(255,255,255,.65)}
.footer-bottom a:hover{color:var(--color-accent)}

/* Responsive */
@media (max-width:1024px){
  .nav-channels{display:none}
  .nav-hamburger{display:flex}
  .search-form{width:150px}
  .list-layout{grid-template-columns:1fr 300px;gap:20px}
  .list-item-thumb{width:140px;height:100px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  :root{--section-gap:var(--section-gap-mobile);--container-pad:var(--container-pad-mobile);--nav-height:64px}
  .site-header{height:var(--nav-height)}
  .search-form{display:none}
  .btn-nav-ghost{padding:0 12px;font-size:13px}
  .btn-nav-primary{padding:0 14px;font-size:13px}
  .list-layout{grid-template-columns:1fr}
  .sidebar{order:2}
  .article-list{order:1}
  .list-item{flex-direction:column}
  .list-item-thumb{width:100%;height:160px}
  .deep-article{padding:24px 18px}
  .related-grid{grid-template-columns:1fr 1fr;gap:14px}
  .cta-inner{padding:48px 16px 80px}
  .cta-inner .btn-ghost-light{margin-left:0;margin-top:10px}
  .footer-top{grid-template-columns:1fr;gap:24px}
  .footer-mid{flex-direction:column;align-items:stretch}
  .footer-subscribe{max-width:100%}
  .cat-hero h1{font-size:2rem}
  .cat-hero p{font-size:16px}
}
@media (max-width:520px){
  .nav-right .btn-nav-ghost{display:none}
  .related-grid{grid-template-columns:1fr}
  .deep-article h2{font-size:1.4rem}
  .deep-article p{font-size:15px}
  .list-item h3{font-size:16px}
  .accordion-trigger{font-size:15px;padding:14px 16px}
}

/* roulang page: category6 */
:root {
            --color-primary: #0B1D2C;
            --color-primary-light: #143652;
            --color-surface: #F4F9FC;
            --color-card: #FFFFFF;
            --color-accent: #F26B3A;
            --color-accent-hover: #D9531F;
            --color-ice: #4EA8DE;
            --color-ice-soft: #E3F0F7;
            --color-text: #162B3D;
            --color-text-secondary: #5A6F80;
            --color-border: #D9E6EE;
            --color-bg-hero: #0B1D2C;
            --color-success: #2D9C6E;
            --color-warm: #F5B841;
            --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "HanHei SC", system-ui, sans-serif;
            --font-num: "DIN Alternate", "Oswald", "Barlow Condensed", sans-serif;
            --shadow-sm: 0 2px 12px rgba(11, 29, 44, 0.06);
            --shadow-md: 0 6px 20px rgba(11, 29, 44, 0.12);
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-input: 6px;
            --radius-badge: 999px;
            --radius-side: 10px;
            --section-gap: 96px;
            --section-gap-mobile: 48px;
            --container-max: 1280px;
            --container-pad: 24px;
            --container-pad-mobile: 16px;
            --nav-height: 72px;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 18px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-surface);
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: var(--color-ice);
            text-decoration: none;
            transition: color 0.2s ease, text-decoration 0.2s ease;
        }

        a:hover {
            color: var(--color-accent);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(78, 168, 222, 0.45);
            outline-offset: 2px;
            border-radius: 4px;
        }

        button {
            font-family: var(--font-sans);
            cursor: pointer;
            border: none;
            background: none;
            font-size: 16px;
            font-weight: 600;
            transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.15s ease, box-shadow 0.25s ease;
        }

        button:active {
            transform: scale(0.98);
        }

        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 16px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-input);
            padding: 10px 14px;
            background-color: #fff;
            color: var(--color-text);
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
            width: 100%;
        }

        input:focus,
        textarea:focus,
        select:focus {
            border-color: var(--color-ice);
            box-shadow: 0 0 0 3px rgba(78, 168, 222, 0.18);
            outline: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: var(--container-pad);
            padding-right: var(--container-pad);
        }

        .section {
            padding-top: var(--section-gap);
            padding-bottom: var(--section-gap);
        }

        .section-tight {
            padding-top: 60px;
            padding-bottom: 60px;
        }

        .section-alt {
            background-color: #fff;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 12px;
            position: relative;
            padding-left: 18px;
        }

        .section-label::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 10px;
            height: 3px;
            background-color: var(--color-accent);
            border-radius: 2px;
        }

        .section-title {
            font-size: clamp(1.8rem, 4vw, 2.4rem);
            line-height: 1.2;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--color-primary);
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 18px;
            line-height: 1.8;
            color: var(--color-text-secondary);
            margin-bottom: 40px;
            max-width: 760px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 16px;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.15s ease, box-shadow 0.25s ease;
            text-decoration: none;
            white-space: nowrap;
            line-height: 1.4;
        }

        .btn:hover {
            transform: translateY(-1px);
        }

        .btn-primary {
            background-color: var(--color-accent);
            color: #fff;
            border: 1px solid var(--color-accent);
        }

        .btn-primary:hover {
            background-color: var(--color-accent-hover);
            border-color: var(--color-accent-hover);
            color: #fff;
            box-shadow: var(--shadow-md);
        }

        .btn-primary:active {
            transform: scale(0.98);
            box-shadow: var(--shadow-sm);
        }

        .btn-ghost {
            background: transparent;
            color: var(--color-primary);
            border: 1px solid var(--color-border);
        }

        .btn-ghost:hover {
            background-color: var(--color-ice-soft);
            border-color: var(--color-ice);
            color: var(--color-primary);
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.4);
        }

        .btn-outline-light:hover {
            background-color: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
        }

        .btn-text {
            color: var(--color-accent);
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 0;
            border: none;
            background: none;
            cursor: pointer;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .btn-text:hover {
            color: var(--color-accent-hover);
            text-decoration: underline;
        }

        .btn-text .arrow {
            transition: transform 0.25s ease;
        }

        .btn-text:hover .arrow {
            transform: translateX(4px);
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--color-border);
            box-shadow: 0 1px 8px rgba(11, 29, 44, 0.04);
            height: var(--nav-height);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            height: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: var(--container-pad);
            padding-right: var(--container-pad);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            text-decoration: none;
            color: var(--color-primary);
        }

        .nav-logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .nav-logo-text span {
            color: var(--color-accent);
        }

        .nav-channels {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-channels::-webkit-scrollbar {
            display: none;
        }

        .nav-channels a {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 8px 12px;
            border-radius: var(--radius-btn);
            text-decoration: none;
            white-space: nowrap;
            transition: color 0.2s ease, background-color 0.2s ease;
        }

        .nav-channels a:hover {
            color: var(--color-accent);
            background-color: var(--color-ice-soft);
        }

        .nav-channels a.active {
            color: #fff;
            background-color: var(--color-primary);
            font-weight: 600;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-search {
            display: flex;
            align-items: center;
            gap: 6px;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            padding: 6px 12px;
            width: 180px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .nav-search:focus-within {
            border-color: var(--color-ice);
            box-shadow: 0 0 0 3px rgba(78, 168, 222, 0.15);
        }

        .nav-search input {
            border: none;
            background: transparent;
            padding: 4px 0;
            font-size: 13px;
            color: var(--color-text);
            width: 100%;
            outline: none;
        }

        .nav-search input::placeholder {
            color: var(--color-text-secondary);
        }

        .nav-search .search-icon {
            color: var(--color-text-secondary);
            flex-shrink: 0;
            font-size: 16px;
        }

        .nav-auth {
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-primary);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            text-decoration: none;
            white-space: nowrap;
            transition: background-color 0.2s ease, border-color 0.2s ease;
        }

        .nav-auth:hover {
            background-color: var(--color-surface);
            border-color: var(--color-ice);
        }

        .nav-publish {
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 600;
            background-color: var(--color-accent);
            color: #fff;
            border-radius: var(--radius-btn);
            border: 1px solid var(--color-accent);
            text-decoration: none;
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: background-color 0.25s ease, transform 0.15s ease;
        }

        .nav-publish:hover {
            background-color: var(--color-accent-hover);
            border-color: var(--color-accent-hover);
            color: #fff;
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-btn);
            transition: background-color 0.2s ease;
        }

        .nav-toggle:hover {
            background-color: var(--color-surface);
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--color-primary);
            border-radius: 2px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background-color: var(--color-primary);
            z-index: 95;
            padding: 24px;
            overflow-y: auto;
            flex-direction: column;
            gap: 8px;
        }

        .mobile-drawer.open {
            display: flex;
        }

        .mobile-drawer a {
            color: #fff;
            font-size: 16px;
            padding: 14px 16px;
            border-radius: var(--radius-btn);
            text-decoration: none;
            transition: background-color 0.2s ease;
            display: block;
        }

        .mobile-drawer a:hover {
            background-color: var(--color-primary-light);
            color: var(--color-accent);
        }

        .mobile-drawer a.active {
            background-color: var(--color-accent);
            color: #fff;
        }

        /* Breadcrumb */
        .breadcrumb-wrap {
            background-color: #fff;
            border-bottom: 1px solid var(--color-border);
            padding: 14px 0;
            font-size: 14px;
            color: var(--color-text-secondary);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--color-ice);
            text-decoration: none;
        }

        .breadcrumb a:hover {
            color: var(--color-accent);
        }

        .breadcrumb .sep {
            color: var(--color-border);
        }

        .breadcrumb .current {
            color: var(--color-text);
            font-weight: 500;
        }

        /* Category Hero */
        .category-hero {
            background: linear-gradient(135deg, var(--color-bg-hero) 0%, var(--color-primary-light) 65%, #1a3b54 100%);
            color: #fff;
            padding: 56px 0 48px;
            position: relative;
            overflow: hidden;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -40px;
            right: -40px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(78, 168, 222, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -60px;
            left: -60px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(242, 107, 58, 0.14) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-hero .container {
            position: relative;
            z-index: 1;
        }

        .category-hero h1 {
            font-size: clamp(2rem, 5vw, 3rem);
            line-height: 1.15;
            font-weight: 800;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
        }

        .category-hero p {
            font-size: 18px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.82);
            max-width: 760px;
        }

        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 28px;
            flex-wrap: wrap;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
        }

        .hero-stat .num {
            font-family: var(--font-num);
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
        }

        .hero-stat .label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 4px;
        }

        /* Accordion Filter */
        .filter-accordion {
            display: flex;
            flex-direction: column;
            gap: 12px;
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            margin-bottom: 36px;
            box-shadow: var(--shadow-sm);
        }

        .accordion-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            overflow: hidden;
            transition: border-color 0.25s ease;
        }

        .accordion-item.active {
            border-color: var(--color-ice);
        }

        .accordion-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 18px;
            cursor: pointer;
            background: var(--color-surface);
            transition: background-color 0.2s ease;
            user-select: none;
        }

        .accordion-header:hover {
            background: var(--color-ice-soft);
        }

        .accordion-header .title {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-primary);
        }

        .accordion-header .icon {
            color: var(--color-text-secondary);
            font-size: 18px;
            transition: transform 0.3s ease;
        }

        .accordion-item.active .accordion-header .icon {
            transform: rotate(180deg);
            color: var(--color-accent);
        }

        .accordion-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.25s ease;
            padding: 0 18px;
        }

        .accordion-item.active .accordion-body {
            max-height: 240px;
            padding: 14px 18px 18px;
        }

        .accordion-body .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .accordion-body .tag {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 500;
            background-color: var(--color-surface);
            color: var(--color-text);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-badge);
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .accordion-body .tag:hover {
            background-color: var(--color-ice-soft);
            border-color: var(--color-ice);
            color: var(--color-primary);
        }

        .accordion-body .tag.active-tag {
            background-color: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
        }

        /* Deep Content */
        .deep-content {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 32px 36px;
            box-shadow: var(--shadow-sm);
        }

        .deep-content h3 {
            font-size: clamp(1.25rem, 3vw, 1.6rem);
            line-height: 1.3;
            font-weight: 650;
            color: var(--color-primary);
            margin: 28px 0 12px;
            letter-spacing: -0.01em;
        }

        .deep-content h3:first-of-type {
            margin-top: 0;
        }

        .deep-content p {
            font-size: 17px;
            line-height: 1.85;
            color: var(--color-text);
            margin-bottom: 16px;
        }

        .deep-content ul,
        .deep-content ol {
            margin: 12px 0 16px 24px;
            font-size: 17px;
            line-height: 1.8;
            color: var(--color-text);
        }

        .deep-content li {
            margin-bottom: 8px;
        }

        .deep-content .content-img {
            border-radius: var(--radius-card);
            overflow: hidden;
            margin: 20px 0;
            aspect-ratio: 16/8;
            max-height: 360px;
            width: 100%;
        }

        .deep-content .content-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .deep-content blockquote {
            border-left: 3px solid var(--color-accent);
            padding: 12px 18px;
            background: var(--color-surface);
            border-radius: 0 var(--radius-btn) var(--radius-btn) 0;
            margin: 18px 0;
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text-secondary);
            font-style: italic;
        }

        /* Content List Area */
        .content-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 32px;
            align-items: start;
        }

        .content-layout.even-layout {
            grid-template-columns: 340px 1fr;
        }

        .content-layout.even-layout .sidebar {
            order: 1;
        }

        .content-layout.even-layout .main-list {
            order: 2;
        }

        .main-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .list-item {
            display: grid;
            grid-template-columns: 200px 1fr;
            gap: 18px;
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            padding: 16px;
            transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
        }

        .list-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-ice);
            transform: translateY(-2px);
        }

        .list-item .thumb {
            border-radius: var(--radius-btn);
            overflow: hidden;
            aspect-ratio: 16/10;
            min-height: 100%;
            position: relative;
        }

        .list-item .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .list-item .item-body {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            gap: 8px;
        }

        .list-item .item-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .list-item .item-tags .tag {
            font-size: 11px;
            font-weight: 500;
            padding: 3px 10px;
            border-radius: var(--radius-badge);
            background-color: var(--color-ice-soft);
            color: var(--color-primary);
            border: 1px solid var(--color-border);
        }

        .list-item h3 {
            font-size: 17px;
            font-weight: 650;
            line-height: 1.4;
            color: var(--color-primary);
            margin: 4px 0;
            letter-spacing: -0.01em;
        }

        .list-item .item-date {
            font-size: 13px;
            color: var(--color-text-secondary);
            font-weight: 500;
        }

        .list-item p {
            font-size: 15px;
            line-height: 1.65;
            color: var(--color-text-secondary);
            flex: 1;
        }

        .list-item .read-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-accent);
            align-self: flex-start;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color 0.2s ease;
        }

        .list-item .read-more:hover {
            color: var(--color-accent-hover);
            text-decoration: underline;
        }

        /* Sidebar */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .sidebar-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-side);
            padding: 20px;
            box-shadow: var(--shadow-sm);
        }

        .sidebar-card h4 {
            font-size: 16px;
            font-weight: 650;
            color: var(--color-primary);
            margin-bottom: 14px;
            letter-spacing: -0.01em;
            position: relative;
            padding-left: 12px;
        }

        .sidebar-card h4::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 18px;
            background: var(--color-accent);
            border-radius: 2px;
        }

        .sidebar-card .side-link {
            display: block;
            padding: 8px 0;
            font-size: 14px;
            color: var(--color-text);
            text-decoration: none;
            border-bottom: 1px dashed var(--color-border);
            transition: color 0.2s ease, padding-left 0.2s ease;
        }

        .sidebar-card .side-link:last-child {
            border-bottom: none;
        }

        .sidebar-card .side-link:hover {
            color: var(--color-accent);
            padding-left: 6px;
        }

        .sidebar-card .hot-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .sidebar-card .hot-tags .htag {
            font-size: 12px;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            background: var(--color-surface);
            color: var(--color-text-secondary);
            border: 1px solid var(--color-border);
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .sidebar-card .hot-tags .htag:hover {
            background: var(--color-ice-soft);
            color: var(--color-primary);
            border-color: var(--color-ice);
        }

        .sidebar-card .subscribe-form {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .sidebar-card .subscribe-form .btn {
            width: 100%;
        }

        /* Related Cards */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .related-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
            text-decoration: none;
            display: block;
        }

        .related-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--color-ice);
        }

        .related-card .thumb {
            aspect-ratio: 16/9;
            overflow: hidden;
        }

        .related-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .related-card:hover .thumb img {
            transform: scale(1.03);
        }

        .related-card .card-body {
            padding: 14px 16px 16px;
        }

        .related-card h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-primary);
            line-height: 1.4;
            margin-bottom: 6px;
        }

        .related-card p {
            font-size: 13px;
            line-height: 1.6;
            color: var(--color-text-secondary);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            overflow: hidden;
            transition: border-left-color 0.25s ease, box-shadow 0.25s ease;
        }

        .faq-item.active {
            border-left: 3px solid var(--color-accent);
            box-shadow: var(--shadow-sm);
        }

        .faq-item:not(.active) {
            border-left: 3px solid var(--color-border);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            user-select: none;
            transition: background-color 0.2s ease;
        }

        .faq-question:hover {
            background: var(--color-surface);
        }

        .faq-question .faq-icon {
            font-size: 20px;
            color: var(--color-text-secondary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
            margin-left: 12px;
        }

        .faq-item.active .faq-question .faq-icon {
            transform: rotate(45deg);
            color: var(--color-accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 20px;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            font-size: 15px;
            line-height: 1.7;
            color: var(--color-text-secondary);
        }

        /* CTA */
        .cta-section {
            background: var(--color-primary);
            color: #fff;
            text-align: center;
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            bottom: -60px;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 200px;
            background: radial-gradient(ellipse at center, rgba(78, 168, 222, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.2rem);
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            margin-bottom: 24px;
            max-width: 480px;
            margin-left: auto;
            margin-right: auto;
        }

        /* Footer */
        .site-footer {
            background: var(--color-primary);
            color: #fff;
            padding: 60px 0 32px;
            font-size: 15px;
        }

        .site-footer a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .site-footer a:hover {
            color: var(--color-accent);
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }

        .footer-brand .nav-logo {
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand .nav-logo-text {
            color: #fff;
        }

        .footer-brand p {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            line-height: 1.7;
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }

        .footer-col a {
            display: block;
            padding: 4px 0;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
        }

        .footer-col a:hover {
            color: var(--color-accent);
        }

        .footer-middle {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 24px;
            padding: 24px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            flex-wrap: wrap;
        }

        .footer-subscribe {
            display: flex;
            gap: 10px;
            flex: 1;
            max-width: 400px;
        }

        .footer-subscribe input {
            flex: 1;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 10px 14px;
            font-size: 14px;
        }

        .footer-subscribe input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-subscribe input:focus {
            border-color: var(--color-ice);
            box-shadow: 0 0 0 3px rgba(78, 168, 222, 0.2);
            background: rgba(255, 255, 255, 0.12);
        }

        .footer-subscribe .btn-primary {
            flex-shrink: 0;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.16);
            color: #fff;
            font-size: 16px;
            transition: background-color 0.2s ease, border-color 0.2s ease;
        }

        .footer-social a:hover {
            background: var(--color-accent);
            border-color: var(--color-accent);
            color: #fff;
        }

        .footer-bottom {
            padding-top: 24px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.8;
            text-align: center;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        .footer-bottom .separator {
            margin: 0 6px;
            color: rgba(255, 255, 255, 0.3);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .footer-brand {
                grid-column: span 2;
            }

            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .content-layout,
            .content-layout.even-layout {
                grid-template-columns: 1fr;
            }

            .content-layout.even-layout .sidebar {
                order: 2;
            }

            .content-layout.even-layout .main-list {
                order: 1;
            }

            .sidebar {
                order: 2;
            }

            .main-list {
                order: 1;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: var(--section-gap-mobile);
                --container-pad: var(--container-pad-mobile);
                --nav-height: 64px;
            }

            .nav-channels {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-search {
                display: none;
            }

            .nav-actions .nav-auth {
                display: none;
            }

            .category-hero {
                padding: 40px 0 36px;
            }

            .hero-stats {
                gap: 24px;
            }

            .list-item {
                grid-template-columns: 1fr;
                padding: 14px;
            }

            .list-item .thumb {
                aspect-ratio: 16/8;
                min-height: auto;
            }

            .deep-content {
                padding: 24px 18px;
            }

            .filter-accordion {
                padding: 16px;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-brand {
                grid-column: span 1;
            }

            .footer-middle {
                flex-direction: column;
                align-items: flex-start;
            }

            .footer-subscribe {
                max-width: 100%;
                width: 100%;
            }

            .related-grid {
                grid-template-columns: 1fr;
            }

            .section {
                padding-top: var(--section-gap-mobile);
                padding-bottom: var(--section-gap-mobile);
            }
        }

        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 1.6rem;
            }

            .category-hero p {
                font-size: 15px;
                line-height: 1.7;
            }

            .hero-stats {
                flex-direction: column;
                gap: 12px;
            }

            .list-item h3 {
                font-size: 15px;
            }

            .deep-content p,
            .deep-content ul,
            .deep-content ol {
                font-size: 15px;
            }

            .btn {
                padding: 10px 18px;
                font-size: 14px;
            }
        }

/* roulang page: category7 */
:root {
  --color-primary: #0B1D2C;
  --color-primary-light: #143652;
  --color-surface: #F4F9FC;
  --color-card: #FFFFFF;
  --color-accent: #F26B3A;
  --color-accent-hover: #D9531F;
  --color-ice: #4EA8DE;
  --color-ice-soft: #E3F0F7;
  --color-text: #162B3D;
  --color-text-secondary: #5A6F80;
  --color-border: #D9E6EE;
  --color-bg-hero: #0B1D2C;
  --color-success: #2D9C6E;
  --color-warm: #F5B841;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "HanHei SC", system-ui, sans-serif;
  --font-num: "DIN Alternate", "Oswald", "Barlow Condensed", sans-serif;
  --shadow-sm: 0 2px 12px rgba(11, 29, 44, 0.06);
  --shadow-md: 0 6px 20px rgba(11, 29, 44, 0.12);
  --radius-card: 14px;
  --radius-btn: 8px;
  --radius-input: 6px;
  --radius-badge: 999px;
  --radius-side: 10px;
  --section-gap: 96px;
  --section-gap-mobile: 48px;
  --container-max: 1280px;
  --container-pad: 24px;
  --container-pad-mobile: 16px;
  --nav-height: 72px;
}
@media (max-width: 768px) {
  :root {
    --section-gap: var(--section-gap-mobile);
    --container-pad: var(--container-pad-mobile);
    --nav-height: 64px;
  }
}

/* Base reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: 18px;
  line-height: 1.8;
  color: var(--color-text);
  background-color: var(--color-surface);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-ice); text-decoration: none; transition: color 0.2s ease, text-decoration 0.2s ease; }
a:hover { color: var(--color-accent); }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 3px solid rgba(78, 168, 222, 0.45);
  outline-offset: 2px;
  border-radius: 4px;
}
button {
  font-family: var(--font-sans);
  cursor: pointer;
  border: none;
  background: none;
  font-size: 16px;
  font-weight: 600;
  transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.15s ease, box-shadow 0.25s ease;
}
button:active { transform: scale(0.98); }
input, textarea, select {
  font-family: var(--font-sans);
  font-size: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-input);
  padding: 10px 14px;
  background-color: #fff;
  color: var(--color-text);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
  width: 100%;
}
input:focus, textarea:focus, select:focus {
  border-color: var(--color-ice);
  box-shadow: 0 0 0 3px rgba(78, 168, 222, 0.18);
  outline: none;
}
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}
.section { padding-top: var(--section-gap); padding-bottom: var(--section-gap); }
.section-tight { padding-top: 60px; padding-bottom: 60px; }
.section-alt { background-color: #fff; border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
  position: relative;
  padding-left: 18px;
}
.section-label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 10px;
  height: 3px;
  background-color: var(--color-accent);
  border-radius: 2px;
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-primary);
  margin-bottom: 16px;
}
.section-desc {
  font-size: 18px;
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: 40px;
  max-width: 760px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-btn);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.15s ease, box-shadow 0.25s ease;
  text-decoration: none;
  white-space: nowrap;
  line-height: 1.4;
}
.btn-primary {
  background-color: var(--color-accent);
  color: #fff;
}
.btn-primary:hover { background-color: var(--color-accent-hover); color: #fff; box-shadow: var(--shadow-md); }
.btn-primary:active { background-color: #C94B1A; }
.btn-ghost {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover { border-color: var(--color-ice); color: var(--color-ice); background-color: var(--color-ice-soft); }
.btn-ghost-light {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.4);
}
.btn-ghost-light:hover { background-color: rgba(255,255,255,0.1); border-color: #fff; color: #fff; }
.btn-sm { padding: 8px 16px; font-size: 14px; }

/* Header / Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  background-color: var(--color-primary);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 16px;
}
.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  text-decoration: none;
  letter-spacing: -0.01em;
  flex-shrink: 0;
}
.nav-logo:hover { color: #fff; }
.nav-logo-text span { color: var(--color-accent); }
.nav-channels {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  justify-content: center;
  flex-wrap: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-channels::-webkit-scrollbar { display: none; }
.nav-channels a {
  color: rgba(255,255,255,0.72);
  font-size: 15px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 999px;
  white-space: nowrap;
  transition: color 0.2s ease, background-color 0.2s ease;
}
.nav-channels a:hover { color: #fff; background-color: rgba(255,255,255,0.08); }
.nav-channels a.active {
  color: #fff;
  background-color: var(--color-accent);
}
.header-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.header-search {
  position: relative;
  width: 180px;
}
.header-search input {
  width: 100%;
  background-color: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 999px;
  color: #fff;
  padding: 8px 14px 8px 36px;
  font-size: 14px;
}
.header-search input::placeholder { color: rgba(255,255,255,0.5); }
.header-search input:focus { border-color: var(--color-accent); box-shadow: 0 0 0 3px rgba(242,107,58,0.25); }
.header-search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: rgba(255,255,255,0.5);
  pointer-events: none;
  font-size: 14px;
}
.btn-login {
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.35);
  background: transparent;
  white-space: nowrap;
}
.btn-login:hover { background-color: rgba(255,255,255,0.1); border-color: #fff; color: #fff; }
.btn-publish {
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background-color: var(--color-accent);
  white-space: nowrap;
}
.btn-publish:hover { background-color: var(--color-accent-hover); color: #fff; }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  background: transparent;
  border: none;
  cursor: pointer;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: #fff;
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.mobile-drawer {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-primary);
  z-index: 99;
  padding: 24px;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
}
.mobile-drawer.open { display: flex; }
.mobile-drawer a {
  color: #fff;
  font-size: 18px;
  padding: 12px 16px;
  border-radius: 8px;
  transition: background-color 0.2s ease;
}
.mobile-drawer a:hover, .mobile-drawer a.active { background-color: rgba(255,255,255,0.1); color: var(--color-accent); }

/* Breadcrumb */
.breadcrumb-wrap {
  background-color: var(--color-surface);
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-secondary);
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--color-ice); }
.breadcrumb a:hover { color: var(--color-accent); text-decoration: underline; }
.breadcrumb .separator { color: var(--color-border); }
.breadcrumb .current { color: var(--color-text); font-weight: 600; }

/* Category Header */
.cat-header {
  background: linear-gradient(135deg, var(--color-bg-hero) 0%, var(--color-primary-light) 60%, #1B3D5A 100%);
  color: #fff;
  padding: 60px 0 50px;
  position: relative;
  overflow: hidden;
}
.cat-header::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 40px;
  background-color: var(--color-surface);
  border-radius: 50% 50% 0 0 / 100% 100% 0 0;
}
.cat-header-inner { position: relative; z-index: 1; max-width: 820px; }
.cat-header h1 {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}
.cat-header p {
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255,255,255,0.82);
  margin-bottom: 20px;
}
.cat-header-meta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
}

/* Accordion Filter */
.accordion-filter { display: flex; flex-direction: column; gap: 12px; }
.accordion-item {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.accordion-item:hover { border-color: var(--color-ice); }
.accordion-item.open { border-color: var(--color-accent); box-shadow: var(--shadow-md); }
.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: transparent;
  border: none;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  text-align: left;
  cursor: pointer;
  transition: background-color 0.25s ease;
}
.accordion-trigger:hover { background-color: var(--color-ice-soft); }
.accordion-trigger:active { transform: none; }
.accordion-trigger .icon { transition: transform 0.3s ease; font-style: normal; color: var(--color-accent); }
.accordion-item.open .accordion-trigger .icon { transform: rotate(180deg); }
.accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 20px;
}
.accordion-item.open .accordion-panel { max-height: 300px; padding: 0 20px 16px; }
.accordion-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.accordion-tags .tag {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: all 0.2s ease;
}
.accordion-tags .tag:hover { color: var(--color-accent); border-color: var(--color-accent); }
.accordion-tags .tag.active {
  background-color: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

/* Deep Article */
.deep-article {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 40px 48px;
  box-shadow: var(--shadow-sm);
}
.deep-article h3 {
  font-size: 1.4rem;
  font-weight: 650;
  color: var(--color-primary);
  margin: 28px 0 12px;
}
.deep-article h3:first-of-type { margin-top: 0; }
.deep-article p {
  margin-bottom: 16px;
  color: var(--color-text);
  line-height: 1.9;
}
.deep-article ul {
  margin: 0 0 20px 24px;
  color: var(--color-text);
  line-height: 1.9;
}
.deep-article ul li { margin-bottom: 8px; }
.deep-article blockquote {
  border-left: 3px solid var(--color-accent);
  padding: 16px 20px;
  margin: 20px 0;
  background-color: var(--color-ice-soft);
  border-radius: 0 8px 8px 0;
  font-size: 16px;
  color: var(--color-text-secondary);
  font-style: italic;
}

/* Content List + Sidebar */
.content-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 32px;
  align-items: start;
}
.content-list { display: flex; flex-direction: column; gap: 20px; }
.content-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  display: grid;
  grid-template-columns: 180px 1fr;
  transition: box-shadow 0.25s ease, border-color 0.25s ease, transform 0.2s ease;
}
.content-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-ice);
  transform: translateY(-2px);
}
.content-card-img {
  height: 100%;
  min-height: 140px;
  background-size: cover;
  background-position: center;
  clip-path: polygon(0 0, 100% 0, 92% 100%, 0 100%);
}
.content-card-body { padding: 18px 22px; }
.content-card-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; }
.content-card-tags .mini-tag {
  font-size: 12px;
  font-weight: 500;
  padding: 2px 10px;
  border-radius: 999px;
  background-color: var(--color-ice-soft);
  color: var(--color-ice);
}
.content-card-title {
  font-size: 1.1rem;
  font-weight: 650;
  color: var(--color-primary);
  margin-bottom: 6px;
  line-height: 1.4;
}
.content-card-title a { color: var(--color-primary); }
.content-card-title a:hover { color: var(--color-accent); }
.content-card-summary {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 10px;
}
.content-card-date {
  font-size: 13px;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}
.content-card-date .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
  display: inline-block;
}

.sidebar { display: flex; flex-direction: column; gap: 20px; }
.sidebar-block {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-side);
  padding: 20px;
}
.sidebar-block h4 {
  font-size: 16px;
  font-weight: 650;
  color: var(--color-primary);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
  position: relative;
}
.sidebar-block h4::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 40px;
  height: 3px;
  background-color: var(--color-accent);
  border-radius: 2px;
}
.sidebar-recommend { display: flex; flex-direction: column; gap: 12px; }
.sidebar-recommend-item {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 8px;
  border-radius: 8px;
  transition: background-color 0.2s ease;
}
.sidebar-recommend-item:hover { background-color: var(--color-ice-soft); }
.sidebar-recommend-thumb {
  width: 56px;
  height: 56px;
  border-radius: 8px;
  background-size: cover;
  background-position: center;
  flex-shrink: 0;
}
.sidebar-recommend-text { flex: 1; min-width: 0; }
.sidebar-recommend-text a {
  font-size: 14px;
  font-weight: 550;
  color: var(--color-text);
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.4;
}
.sidebar-recommend-text a:hover { color: var(--color-accent); }
.sidebar-recommend-text .date { font-size: 12px; color: var(--color-text-secondary); }
.hot-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.hot-tags a {
  font-size: 13px;
  padding: 5px 12px;
  border-radius: 999px;
  background-color: var(--color-surface);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  transition: all 0.2s ease;
}
.hot-tags a:hover { background-color: var(--color-accent); color: #fff; border-color: var(--color-accent); }
.subscribe-form { display: flex; flex-direction: column; gap: 10px; }
.subscribe-form input { border-radius: var(--radius-input); }
.subscribe-form .btn { width: 100%; }

/* Benefits Highlight */
.benefits-highlight {
  background-color: #fff;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}
.benefit-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 28px;
  transition: box-shadow 0.25s ease, transform 0.2s ease, border-color 0.25s ease;
  position: relative;
  overflow: hidden;
}
.benefit-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--color-ice);
}
.benefit-card.highlight {
  background-color: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.benefit-card.highlight h3, .benefit-card.highlight p { color: #fff; }
.benefit-card.highlight .benefit-icon { background-color: rgba(242,107,58,0.2); }
.benefit-card .badge-recommend {
  position: absolute;
  top: 16px;
  right: 16px;
  background-color: var(--color-accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
}
.benefit-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 16px;
  background-color: var(--color-ice-soft);
}
.benefit-card h3 {
  font-size: 1.2rem;
  font-weight: 650;
  color: var(--color-primary);
  margin-bottom: 8px;
}
.benefit-card p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}
.benefit-card .benefit-price {
  font-family: var(--font-num);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 4px;
}
.benefit-card.highlight .benefit-price { color: var(--color-warm); }
.benefit-card .benefit-price-label { font-size: 14px; color: var(--color-text-secondary); }
.benefit-card.highlight .benefit-price-label { color: rgba(255,255,255,0.7); }
.benefit-list { list-style: none; margin-top: 12px; }
.benefit-list li {
  font-size: 14px;
  color: var(--color-text-secondary);
  padding: 6px 0;
  display: flex;
  align-items: center;
  gap: 8px;
  line-height: 1.5;
}
.benefit-card.highlight .benefit-list li { color: rgba(255,255,255,0.85); }
.benefit-list li::before {
  content: '✓';
  color: var(--color-success);
  font-weight: 700;
  font-size: 13px;
}
.benefit-card.highlight .benefit-list li::before { color: var(--color-warm); }

/* Related Recommendations */
.related-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 32px;
}
.related-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: box-shadow 0.25s ease, transform 0.2s ease, border-color 0.25s ease;
  display: flex;
  flex-direction: column;
}
.related-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--color-ice);
}
.related-card-img {
  height: 140px;
  background-size: cover;
  background-position: center;
}
.related-card-body { padding: 16px 20px 20px; flex: 1; display: flex; flex-direction: column; }
.related-card-body h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 6px;
  line-height: 1.5;
}
.related-card-body p {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  flex: 1;
}
.related-card-body .btn {
  margin-top: 12px;
  align-self: flex-start;
}

/* FAQ */
.faq-wrap { display: flex; flex-direction: column; gap: 10px; max-width: 860px; }
.faq-item {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.faq-item.open {
  border-left: 3px solid var(--color-accent);
  border-left-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}
.faq-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: transparent;
  border: none;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  text-align: left;
  cursor: pointer;
  gap: 12px;
  transition: background-color 0.25s ease;
}
.faq-trigger:hover { background-color: var(--color-ice-soft); }
.faq-trigger:active { transform: none; }
.faq-trigger .faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-ice-soft);
  color: var(--color-ice);
  font-weight: 700;
  transition: transform 0.3s ease, background-color 0.3s ease, color 0.3s ease;
}
.faq-item.open .faq-trigger .faq-icon {
  transform: rotate(45deg);
  background-color: var(--color-accent);
  color: #fff;
}
.faq-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 20px;
}
.faq-item.open .faq-panel { max-height: 400px; padding: 0 20px 16px; }
.faq-panel p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* CTA */
.cta-section {
  background-color: var(--color-primary);
  background-image: radial-gradient(ellipse at 20% 80%, rgba(78,168,222,0.2) 0%, transparent 60%), radial-gradient(ellipse at 80% 20%, rgba(242,107,58,0.15) 0%, transparent 50%);
  color: #fff;
  text-align: center;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -30px;
  left: 0;
  right: 0;
  height: 40px;
  background-color: var(--color-surface);
  border-radius: 50% 50% 0 0 / 100% 100% 0 0;
}
.cta-section h2 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.2;
}
.cta-section p {
  font-size: 17px;
  color: rgba(255,255,255,0.75);
  margin-bottom: 28px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}
.cta-section .btn { font-size: 18px; padding: 14px 32px; }

/* Footer */
.site-footer {
  background-color: var(--color-primary);
  color: rgba(255,255,255,0.75);
  padding: 60px 0 30px;
  font-size: 15px;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .nav-logo { margin-bottom: 16px; }
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,0.6);
  max-width: 320px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 650;
  color: #fff;
  margin-bottom: 14px;
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  padding: 4px 0;
  transition: color 0.2s ease, padding-left 0.2s ease;
}
.footer-col a:hover { color: var(--color-accent); padding-left: 4px; }
.footer-bottom {
  padding-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,0.45);
}
.footer-bottom a { color: rgba(255,255,255,0.55); font-size: 13px; }
.footer-bottom a:hover { color: var(--color-accent); }
.footer-social { display: flex; gap: 10px; margin-top: 12px; }
.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: background-color 0.2s ease;
}

/* Responsive */
@media (max-width: 1024px) {
  .nav-channels { gap: 2px; }
  .header-search { width: 140px; }
  .benefits-grid { grid-template-columns: 1fr 1fr; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr 1fr; }
  .content-card { grid-template-columns: 140px 1fr; }
}
@media (max-width: 768px) {
  .nav-channels { display: none; }
  .header-search { display: none; }
  .hamburger { display: flex; }
  .mobile-drawer { display: none; }
  .mobile-drawer.open { display: flex; }
  .btn-login { display: none; }
  .cat-header { padding: 40px 0 35px; }
  .cat-header-inner p { font-size: 16px; }
  .content-grid { grid-template-columns: 1fr; }
  .sidebar { order: 2; }
  .content-list { order: 1; }
  .content-card { grid-template-columns: 100px 1fr; }
  .content-card-img { min-height: 100px; }
  .benefits-grid { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 20px; }
  .deep-article { padding: 24px 20px; }
  .section { padding-top: 48px; padding-bottom: 48px; }
}
@media (max-width: 520px) {
  .content-card { grid-template-columns: 1fr; }
  .content-card-img { height: 120px; min-height: auto; }
  .content-card-img { clip-path: none; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .cat-header h1 { font-size: 1.8rem; }
  .benefit-card { padding: 20px; }
  .btn-publish { display: none; }
}