/* roulang page: index */
:root {
            --primary: #2B6CB0;
            --primary-light: #3A7BC8;
            --primary-dark: #1E4E8C;
            --primary-bg: #EAF1FB;
            --accent: #F59E0B;
            --accent-light: #FBBF24;
            --accent-deep: #F97316;
            --bg-white: #FFFFFF;
            --bg-gray: #F5F7FA;
            --bg-dark: #0F172A;
            --text-main: #1E293B;
            --text-secondary: #475569;
            --text-muted: #94A3B8;
            --border: #E2E8F0;
            --radius-card: 14px;
            --radius-btn: 9px;
            --radius-badge: 24px;
            --shadow-card: 0 4px 16px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.10);
            --shadow-emphasis: 0 8px 32px rgba(43, 108, 176, 0.18);
            --font-stack: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            --section-pad: 80px 0;
            --section-pad-mobile: 48px 0;
            --container-max: 1200px;
            --transition: 0.25s ease;
        }

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

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-main);
            background: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), opacity var(--transition);
        }

        a:hover,
        a:focus {
            color: var(--primary-dark);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        .focusable:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        h1,
        h2,
        h3,
        h4 {
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-main);
            margin-bottom: 0.5em;
        }

        h1 {
            font-size: clamp(2rem, 4vw, 2.6rem);
            font-weight: 800;
        }

        h2 {
            font-size: clamp(1.45rem, 2.2vw, 1.75rem);
            font-weight: 700;
        }

        h3 {
            font-size: clamp(1.1rem, 1.4vw, 1.25rem);
            font-weight: 600;
        }

        p {
            margin-bottom: 1em;
            color: var(--text-secondary);
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .section {
            padding: var(--section-pad);
        }

        .section-alt {
            background: var(--bg-gray);
        }

        .section-dark {
            background: var(--bg-dark);
            color: #E2E8F0;
            padding: 64px 0;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-bg);
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .section-title {
            font-size: clamp(1.35rem, 2.2vw, 1.75rem);
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 760px;
            margin-bottom: 28px;
            line-height: 1.9;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 8px rgba(15, 23, 42, 0.04);
        }

        .nav-container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 14px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            border-radius: 8px;
            font-size: 1rem;
        }

        .logo-text {
            color: var(--text-main);
        }

        .logo-text:hover,
        .logo-text:focus {
            color: var(--primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li {
            margin: 0;
        }

        .nav-links a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 2px;
            border-bottom: 2px solid transparent;
            transition: color var(--transition), border-color var(--transition);
            white-space: nowrap;
        }

        .nav-links a:hover,
        .nav-links a:focus {
            color: var(--primary);
        }

        .nav-links a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
            font-weight: 600;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: 8px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--text-main);
            transition: background var(--transition);
        }

        .nav-toggle:hover {
            background: var(--bg-gray);
        }

        /* Mobile nav */
        .mobile-menu {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 12px 20px 16px;
        }

        .mobile-menu ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .mobile-menu li {
            margin: 4px 0;
        }

        .mobile-menu a {
            display: block;
            padding: 10px 14px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: background var(--transition), color var(--transition);
        }

        .mobile-menu a:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }

        .mobile-menu a.active {
            background: var(--primary-bg);
            color: var(--primary);
            font-weight: 600;
        }

        /* Hero */
        .hero {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            padding: 60px 0 70px;
            background-image: url('/assets/images/9ff2e93a18826124.jpg');
            background-size: cover;
            background-position: center;
            color: #fff;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(155deg, rgba(15, 23, 42, 0.88) 0%, rgba(15, 23, 42, 0.6) 50%, rgba(43, 108, 176, 0.55) 100%);
        }

        .hero-container {
            position: relative;
            z-index: 2;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }

        .hero-series-nav {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 26px;
        }

        .hero-series-nav a {
            display: inline-block;
            padding: 8px 18px;
            font-size: 0.85rem;
            font-weight: 500;
            color: #fff;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 24px;
            backdrop-filter: blur(6px);
            transition: background var(--transition), border-color var(--transition);
            white-space: nowrap;
        }

        .hero-series-nav a:hover,
        .hero-series-nav a:focus {
            background: rgba(255, 255, 255, 0.25);
            border-color: rgba(255, 255, 255, 0.4);
            color: #fff;
        }

        .hero h1 {
            color: #fff;
            font-size: clamp(2.2rem, 4.5vw, 3.2rem);
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .hero-sub {
            font-size: clamp(1rem, 1.3vw, 1.15rem);
            color: rgba(255, 255, 255, 0.88);
            max-width: 700px;
            line-height: 1.9;
            margin-bottom: 28px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            text-decoration: none;
            transition: background var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition);
            min-height: 46px;
            letter-spacing: 0.3px;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(43, 108, 176, 0.3);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 6px 20px rgba(30, 78, 140, 0.4);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: scale(0.98);
            box-shadow: 0 2px 8px rgba(30, 78, 140, 0.3);
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.6);
        }

        .btn-outline-light:hover,
        .btn-outline-light:focus {
            background: rgba(255, 255, 255, 0.15);
            border-color: #fff;
            color: #fff;
            transform: translateY(-1px);
        }

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

        .btn-outline:hover,
        .btn-outline:focus {
            background: var(--primary-bg);
            color: var(--primary-dark);
            transform: translateY(-1px);
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
        }

        .btn-accent:hover,
        .btn-accent:focus {
            background: var(--accent-deep);
            color: #fff;
            box-shadow: 0 6px 20px rgba(249, 115, 22, 0.4);
            transform: translateY(-1px);
        }

        .hero-indicators {
            display: flex;
            gap: 20px;
            margin-top: 26px;
            flex-wrap: wrap;
        }

        .hero-indicator {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.7);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .hero-indicator i {
            color: var(--accent-light);
            font-size: 0.9rem;
        }

        /* Data strip */
        .data-strip {
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
        }

        .data-strip-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 24px 20px;
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .data-item {
            text-align: center;
            padding: 10px 12px;
        }

        .data-number {
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .data-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* Section helpers */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 22px;
        }

        /* Cards */
        .card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: box-shadow var(--transition), transform var(--transition);
        }

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

        .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            background: var(--bg-gray);
        }

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

        .card-body h3 {
            font-size: 1.05rem;
            margin-bottom: 6px;
        }

        .card-body p {
            font-size: 0.9rem;
            margin-bottom: 0;
            line-height: 1.75;
        }

        .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 20px;
            background: var(--primary-bg);
            color: var(--primary);
            margin-bottom: 8px;
        }

        .card-tag.orange {
            background: #FEF3C7;
            color: #B45309;
        }

        .card-tag.green {
            background: #D1FAE5;
            color: #047857;
        }

        /* CTA section */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-dark) 0%, #1E3A5F 60%, var(--primary-dark) 100%);
            color: #fff;
            text-align: center;
            padding: 72px 20px;
        }

        .cta-section h2 {
            color: #fff;
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            margin-bottom: 12px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            max-width: 620px;
            margin: 0 auto 26px;
            font-size: 1rem;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: #B0B9C8;
            padding: 48px 0 20px;
        }

        .footer-grid {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 30px;
        }

        .footer-brand h3 {
            color: #fff;
            font-size: 1.2rem;
            margin-bottom: 10px;
        }

        .footer-brand p {
            color: #94A3B8;
            font-size: 0.88rem;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col li {
            margin-bottom: 8px;
        }

        .footer-col a {
            color: #94A3B8;
            font-size: 0.88rem;
            transition: color var(--transition);
        }

        .footer-col a:hover,
        .footer-col a:focus {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 16px 20px 8px;
            max-width: var(--container-max);
            margin: 0 auto;
            text-align: center;
            font-size: 0.82rem;
            color: #64748B;
        }

        .footer-bottom a {
            color: #94A3B8;
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        /* Fixed bottom bar */
        .fixed-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(15, 23, 42, 0.95);
            backdrop-filter: blur(8px);
            padding: 10px 20px;
            z-index: 99;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            transition: transform 0.3s ease;
        }

        .fixed-cta-text {
            color: #E2E8F0;
            font-size: 0.9rem;
            font-weight: 500;
            white-space: nowrap;
        }

        .fixed-cta .btn {
            min-height: 40px;
            padding: 10px 20px;
            font-size: 0.85rem;
        }

        .fixed-cta-close {
            position: absolute;
            right: 12px;
            top: 50%;
            transform: translateY(-50%);
            background: transparent;
            border: none;
            color: #64748B;
            font-size: 1.2rem;
            cursor: pointer;
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            transition: background var(--transition), color var(--transition);
        }

        .fixed-cta-close:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .data-strip-inner {
                grid-template-columns: repeat(3, 1fr);
                gap: 12px;
            }

            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--section-pad-mobile);
            }

            .nav-links {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .mobile-menu {
                display: block;
            }

            .mobile-menu.hidden {
                display: none;
            }

            .hero {
                min-height: 480px;
                padding: 40px 0 50px;
            }

            .hero h1 {
                font-size: 1.8rem;
            }

            .hero-sub {
                font-size: 0.95rem;
            }

            .hero-series-nav {
                gap: 7px;
                margin-bottom: 18px;
            }

            .hero-series-nav a {
                padding: 6px 13px;
                font-size: 0.78rem;
            }

            .grid-3 {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .grid-2 {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .grid-4 {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .data-strip-inner {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
                padding: 16px;
            }

            .data-number {
                font-size: 1.35rem;
            }

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

            .fixed-cta {
                padding: 8px 14px;
                gap: 10px;
            }

            .fixed-cta-text {
                font-size: 0.78rem;
                white-space: normal;
                line-height: 1.4;
            }

            .fixed-cta .btn {
                min-height: 38px;
                padding: 8px 14px;
                font-size: 0.78rem;
                white-space: nowrap;
            }

            .fixed-cta-close {
                right: 4px;
                width: 28px;
                height: 28px;
                font-size: 1rem;
            }

            .btn {
                padding: 10px 20px;
                font-size: 0.88rem;
                min-height: 42px;
                width: 100%;
            }

            .hero-actions .btn {
                width: auto;
                flex: 1;
                min-width: 140px;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 1.5rem;
            }

            .hero-sub {
                font-size: 0.88rem;
            }

            .hero-series-nav a {
                padding: 5px 10px;
                font-size: 0.72rem;
            }

            .data-strip-inner {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
                padding: 12px 8px;
            }

            .data-number {
                font-size: 1.2rem;
            }

            .data-label {
                font-size: 0.75rem;
            }

            .fixed-cta {
                flex-direction: column;
                gap: 6px;
                text-align: center;
                padding: 8px 40px 8px 14px;
            }

            .fixed-cta .btn {
                width: 100%;
            }
        }

        /* Comparison section */
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 22px;
            margin-top: 20px;
        }

        .comparison-card {
            border-radius: var(--radius-card);
            padding: 26px 24px;
            border: 1px solid var(--border);
            background: #fff;
        }

        .comparison-card.highlight {
            background: #fff;
            border: 2px solid var(--primary);
            box-shadow: var(--shadow-emphasis);
        }

        .comparison-card h4 {
            font-size: 1.05rem;
            margin-bottom: 14px;
        }

        .comparison-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .comparison-card li {
            padding: 7px 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
            border-bottom: 1px solid var(--border);
        }

        .comparison-card li:last-child {
            border-bottom: none;
        }

        .comparison-card li i {
            color: var(--primary);
            font-size: 0.85rem;
        }

        .comparison-card.highlight li i {
            color: var(--accent);
        }

        @media (max-width: 768px) {
            .comparison-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* List & ranking styles */
        .ranking-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 18px;
            border-bottom: 1px solid var(--border);
            transition: background var(--transition);
        }

        .ranking-item:last-child {
            border-bottom: none;
        }

        .ranking-item:hover {
            background: var(--bg-gray);
        }

        .rank-number {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--primary);
            min-width: 48px;
            text-align: center;
        }

        .rank-number.top1 {
            color: var(--accent);
        }

        .rank-name {
            flex: 1;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-main);
        }

        .rank-score {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* Timeline / route cards */
        .route-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
            margin-top: 20px;
        }

        .route-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 22px 20px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
        }

        .route-card .route-status {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 20px;
            margin-bottom: 10px;
        }

        .route-status.live {
            background: #FEF3C7;
            color: #B45309;
        }

        .route-status.planned {
            background: #E0E7FF;
            color: #3730A3;
        }

        .route-status.done {
            background: #D1FAE5;
            color: #047857;
        }

        .route-card h4 {
            font-size: 1rem;
            margin-bottom: 6px;
        }

        .route-card p {
            font-size: 0.86rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        @media (max-width: 768px) {
            .route-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }

        /* Partner wall */
        .partner-row {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
            margin-top: 16px;
        }

        .partner-chip {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 24px;
            padding: 10px 22px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: border-color var(--transition), color var(--transition), box-shadow var(--transition);
        }

        .partner-chip:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: var(--shadow-card);
        }

        .partner-chip i {
            color: var(--accent);
            font-size: 0.9rem;
        }

        /* Guarantee bar */
        .guarantee-row {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
            margin-top: 16px;
        }

        .guarantee-item {
            text-align: center;
            padding: 16px 12px;
            background: #fff;
            border-radius: 10px;
            border: 1px solid var(--border);
        }

        .guarantee-item i {
            font-size: 1.4rem;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .guarantee-item span {
            display: block;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-secondary);
        }

        @media (max-width: 1024px) {
            .guarantee-row {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 520px) {
            .guarantee-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #2B6CB0;
            --primary-light: #3A7BC8;
            --primary-dark: #1E4E8C;
            --primary-bg: #EAF1FB;
            --accent: #F59E0B;
            --accent-light: #FBBF24;
            --accent-deep: #F97316;
            --bg-white: #FFFFFF;
            --bg-gray: #F5F7FA;
            --bg-dark: #0F172A;
            --text-main: #1E293B;
            --text-secondary: #475569;
            --text-muted: #94A3B8;
            --border: #E2E8F0;
            --radius-card: 14px;
            --radius-btn: 9px;
            --radius-badge: 24px;
            --shadow-card: 0 4px 16px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.10);
            --shadow-emphasis: 0 8px 32px rgba(43, 108, 176, 0.18);
            --font-stack: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            --section-pad: 80px 0;
            --section-pad-mobile: 48px 0;
            --container-max: 1200px;
            --transition: 0.25s ease;
        }

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

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-main);
            background: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), opacity var(--transition);
        }

        a:hover,
        a:focus {
            color: var(--primary-dark);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        .focusable:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-stack);
            color: var(--text-main);
            line-height: 1.35;
            margin-top: 0;
        }

        p {
            margin-top: 0;
        }

        ul,
        ol {
            margin: 0;
            padding: 0;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .section {
            padding: var(--section-pad);
        }

        .section-alt {
            background: var(--bg-gray);
        }

        .section-dark {
            background: var(--bg-dark);
            color: #E2E8F0;
            padding: 64px 0;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-bg);
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .section-title {
            font-size: clamp(1.35rem, 2.2vw, 1.75rem);
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 760px;
            margin-bottom: 28px;
            line-height: 1.9;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 8px rgba(15, 23, 42, 0.04);
        }

        .nav-container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 14px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            border-radius: 8px;
            font-size: 1rem;
        }

        .logo-text {
            color: var(--text-main);
        }

        .logo-text:hover,
        .logo-text:focus {
            color: var(--primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li {
            margin: 0;
        }

        .nav-links a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 2px;
            border-bottom: 2px solid transparent;
            transition: color var(--transition), border-color var(--transition);
            white-space: nowrap;
        }

        .nav-links a:hover,
        .nav-links a:focus {
            color: var(--primary);
        }

        .nav-links a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
            font-weight: 600;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: 8px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--text-main);
            transition: background var(--transition);
        }

        .nav-toggle:hover {
            background: var(--bg-gray);
        }

        .mobile-menu {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 12px 20px;
        }

        .mobile-menu ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .mobile-menu li {
            margin: 0;
        }

        .mobile-menu a {
            display: block;
            padding: 12px 0;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border);
            transition: color var(--transition);
        }

        .mobile-menu li:last-child a {
            border-bottom: none;
        }

        .mobile-menu a:hover,
        .mobile-menu a:focus {
            color: var(--primary);
        }

        .mobile-menu a.active {
            color: var(--primary);
            font-weight: 600;
            background: var(--primary-bg);
            padding-left: 12px;
            border-radius: 6px;
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            background: var(--bg-gray);
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .breadcrumb li {
            margin: 0;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition);
        }

        .breadcrumb a:hover,
        .breadcrumb a:focus {
            color: var(--primary);
        }

        .breadcrumb .separator {
            color: var(--text-muted);
            margin: 0 4px;
        }

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

        /* Category Hero */
        .category-hero {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            padding: 48px 0 40px;
        }

        .category-hero h1 {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .category-hero .hero-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 760px;
            line-height: 1.9;
            margin-bottom: 16px;
        }

        .category-hero .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 16px;
        }

        .category-hero .hero-stat-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            background: var(--bg-gray);
            padding: 6px 14px;
            border-radius: var(--radius-badge);
            font-weight: 500;
        }

        .category-hero .hero-stat-item i {
            color: var(--primary);
        }

        /* Guide List Section */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .guide-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .guide-card .card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-gray);
            position: relative;
        }

        .guide-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }

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

        .guide-card .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: var(--bg-dark);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            letter-spacing: 0.5px;
        }

        .guide-card .card-body {
            padding: 20px 20px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .guide-card .card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 10px;
            flex-wrap: wrap;
        }

        .guide-card .card-meta i {
            color: var(--primary);
        }

        .guide-card .card-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .guide-card .card-title a {
            color: var(--text-main);
            transition: color var(--transition);
        }

        .guide-card .card-title a:hover,
        .guide-card .card-title a:focus {
            color: var(--primary);
        }

        .guide-card .card-excerpt {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
            flex: 1;
        }

        .guide-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 12px;
        }

        .guide-card .card-tag {
            font-size: 0.75rem;
            color: var(--primary);
            background: var(--primary-bg);
            padding: 2px 10px;
            border-radius: var(--radius-badge);
            font-weight: 500;
        }

        .guide-card .card-link {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition), gap var(--transition);
        }

        .guide-card .card-link:hover,
        .guide-card .card-link:focus {
            color: var(--primary-dark);
            gap: 8px;
        }

        /* Category Entry Section */
        .category-entry-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .category-entry-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition);
            display: block;
        }

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

        .category-entry-card .entry-icon {
            width: 48px;
            height: 48px;
            background: var(--primary-bg);
            color: var(--primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin: 0 auto 12px;
        }

        .category-entry-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-main);
        }

        .category-entry-card p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* Data Support Section */
        .data-bar-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .data-bar-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition);
        }

        .data-bar-card:hover {
            box-shadow: var(--shadow-hover);
        }

        .data-bar-card .data-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 6px;
            line-height: 1.2;
        }

        .data-bar-card .data-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .data-bar-card .data-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.8rem;
            color: #16A34A;
            font-weight: 600;
            margin-top: 6px;
        }

        .data-bar-card .data-trend.down {
            color: #DC2626;
        }

        /* Featured Section */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .featured-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .featured-card .featured-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-gray);
        }

        .featured-card .featured-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }

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

        .featured-card .featured-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .featured-card .featured-tag {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent-deep);
            margin-bottom: 8px;
            letter-spacing: 0.5px;
        }

        .featured-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-main);
        }

        .featured-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
            flex: 1;
        }

        .featured-card .featured-link {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition), gap var(--transition);
        }

        .featured-card .featured-link:hover,
        .featured-card .featured-link:focus {
            color: var(--primary-dark);
            gap: 8px;
        }

        /* FAQ Section */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
            margin-bottom: 0;
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 8px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-main);
            transition: color var(--transition);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-stack);
        }

        .faq-question:hover,
        .faq-question:focus {
            color: var(--primary);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: transform var(--transition), color var(--transition);
            margin-left: 12px;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            padding: 0 8px;
        }

        .faq-answer p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.9;
            padding-bottom: 18px;
            margin-bottom: 0;
        }

        /* CTA Section */
        .cta-section {
            background: var(--bg-dark);
            color: #E2E8F0;
            padding: 72px 0;
            text-align: center;
        }

        .cta-section h2 {
            color: #FFFFFF;
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            margin-bottom: 12px;
        }

        .cta-section p {
            color: #CBD5E1;
            max-width: 640px;
            margin: 0 auto 28px;
            font-size: 1rem;
            line-height: 1.9;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-family: var(--font-stack);
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            cursor: pointer;
            transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
            border: 2px solid transparent;
            line-height: 1.4;
            text-decoration: none;
            min-height: 44px;
        }

        .btn-primary {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #FFFFFF;
            box-shadow: var(--shadow-emphasis);
        }

        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-accent {
            background: var(--accent);
            color: var(--bg-dark);
            border-color: var(--accent);
        }

        .btn-accent:hover,
        .btn-accent:focus {
            background: var(--accent-deep);
            border-color: var(--accent-deep);
            color: var(--bg-dark);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.3);
        }

        .btn-accent:active {
            transform: scale(0.98);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-outline:hover,
        .btn-outline:focus {
            background: var(--primary-bg);
            border-color: var(--primary);
            color: var(--primary-dark);
        }

        .btn-outline:active {
            transform: scale(0.98);
        }

        .btn-lg {
            padding: 14px 36px;
            font-size: 1rem;
            min-height: 48px;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: #CBD5E1;
            padding: 48px 0 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand h3 {
            color: #FFFFFF;
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: #94A3B8;
            line-height: 1.8;
            margin-bottom: 0;
            max-width: 340px;
        }

        .footer-col h4 {
            color: #FFFFFF;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 14px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: #94A3B8;
            font-size: 0.9rem;
            transition: color var(--transition);
        }

        .footer-col ul li a:hover,
        .footer-col ul li a:focus {
            color: #FFFFFF;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            font-size: 0.85rem;
            color: #64748B;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
        }

        .footer-bottom a {
            color: #94A3B8;
            transition: color var(--transition);
        }

        .footer-bottom a:hover,
        .footer-bottom a:focus {
            color: #FFFFFF;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

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

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }

            .nav-links {
                display: none;
            }

            .mobile-menu {
                display: block;
            }

            .mobile-menu.open {
                display: block;
            }

            .section {
                padding: var(--section-pad-mobile);
            }

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

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

            .data-bar-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .category-entry-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

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

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }

            .category-hero {
                padding: 32px 0 28px;
            }

            .breadcrumb-bar {
                padding: 10px 0;
            }
        }

        @media (max-width: 520px) {
            .data-bar-grid {
                grid-template-columns: 1fr;
            }

            .category-hero h1 {
                font-size: 1.5rem;
            }

            .btn-lg {
                padding: 12px 24px;
                font-size: 0.9rem;
                min-height: 44px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #2B6CB0;
            --primary-light: #3A7BC8;
            --primary-dark: #1E4E8C;
            --primary-bg: #EAF1FB;
            --accent: #F59E0B;
            --accent-light: #FBBF24;
            --accent-deep: #F97316;
            --bg-white: #FFFFFF;
            --bg-gray: #F5F7FA;
            --bg-dark: #0F172A;
            --text-main: #1E293B;
            --text-secondary: #475569;
            --text-muted: #94A3B8;
            --border: #E2E8F0;
            --radius-card: 14px;
            --radius-btn: 9px;
            --radius-badge: 24px;
            --shadow-card: 0 4px 16px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.10);
            --shadow-emphasis: 0 8px 32px rgba(43, 108, 176, 0.18);
            --font-stack: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            --section-pad: 72px 0;
            --section-pad-mobile: 44px 0;
            --container-max: 1200px;
            --transition: 0.25s ease;
        }

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-main);
            background: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), opacity var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--primary-dark);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        .focusable:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .section {
            padding: var(--section-pad);
        }
        .section-alt {
            background: var(--bg-gray);
        }
        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-bg);
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .section-title {
            font-size: clamp(1.3rem, 2.2vw, 1.7rem);
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
        }
        .section-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 760px;
            margin-bottom: 28px;
            line-height: 1.9;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 8px rgba(15, 23, 42, 0.04);
        }
        .nav-container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 14px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            border-radius: 8px;
            font-size: 1rem;
        }
        .logo-text {
            color: var(--text-main);
        }
        .logo-text:hover,
        .logo-text:focus {
            color: var(--primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 26px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li {
            margin: 0;
        }
        .nav-links a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 2px;
            border-bottom: 2px solid transparent;
            transition: color var(--transition), border-color var(--transition);
            white-space: nowrap;
        }
        .nav-links a:hover,
        .nav-links a:focus {
            color: var(--primary);
        }
        .nav-links a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
            font-weight: 600;
        }
        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: 8px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--text-main);
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: var(--bg-gray);
        }
        .mobile-menu {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 12px 20px;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-menu a {
            display: block;
            padding: 10px 8px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 6px;
            transition: background var(--transition), color var(--transition);
        }
        .mobile-menu a:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }
        .mobile-menu a.active {
            background: var(--primary-bg);
            color: var(--primary);
            font-weight: 600;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 14px;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .separator {
            color: var(--text-muted);
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* Category header */
        .category-header {
            background: var(--bg-gray);
            padding: 48px 0 40px;
            border-bottom: 1px solid var(--border);
        }
        .category-header h1 {
            font-size: clamp(1.5rem, 3vw, 2.1rem);
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }
        .category-header .cat-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 760px;
            line-height: 1.9;
            margin-bottom: 0;
        }

        /* Schedule cards */
        .schedule-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 22px;
            margin-bottom: 10px;
        }
        .schedule-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition), box-shadow var(--transition);
            display: flex;
            flex-direction: column;
        }
        .schedule-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .schedule-card .card-media {
            position: relative;
            height: 160px;
            overflow: hidden;
            background: var(--bg-gray);
        }
        .schedule-card .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .schedule-card:hover .card-media img {
            transform: scale(1.03);
        }
        .schedule-card .card-body {
            padding: 16px 18px 18px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .schedule-card .card-date {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .schedule-card .card-title {
            font-size: 1.02rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .schedule-card .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: auto;
            align-items: center;
        }
        .status-badge {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: var(--radius-badge);
            letter-spacing: 0.3px;
        }
        .status-badge.live {
            background: #FEF3C7;
            color: #D97706;
        }
        .status-badge.upcoming {
            background: var(--primary-bg);
            color: var(--primary);
        }
        .status-badge.ended {
            background: #F1F5F9;
            color: var(--text-muted);
        }
        .team-text {
            font-size: 0.82rem;
            color: var(--text-secondary);
        }

        /* Category entry cards */
        .entry-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
        }
        .entry-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 22px 20px;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition), box-shadow var(--transition);
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .entry-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .entry-card .entry-icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary-bg);
            color: var(--primary);
            border-radius: 10px;
            font-size: 1.2rem;
        }
        .entry-card .entry-info h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 4px;
        }
        .entry-card .entry-info p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
        }

        /* Data bars */
        .data-bar-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 18px;
        }
        .data-bar-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px 18px;
            text-align: center;
            box-shadow: var(--shadow-card);
        }
        .data-bar-item .data-num {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .data-bar-item .data-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        /* Special topic cards */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .topic-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition), box-shadow var(--transition);
            display: flex;
            flex-direction: column;
        }
        .topic-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .topic-card .topic-media {
            height: 180px;
            overflow: hidden;
            background: var(--bg-gray);
        }
        .topic-card .topic-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .topic-card:hover .topic-media img {
            transform: scale(1.03);
        }
        .topic-card .topic-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .topic-card .topic-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .topic-card .topic-desc {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
            flex: 1;
        }
        .topic-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .topic-link:hover {
            color: var(--primary-dark);
        }

        /* FAQ */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 6px;
            cursor: pointer;
            font-weight: 600;
            color: var(--text-main);
            font-size: 0.98rem;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 1rem;
            color: var(--text-muted);
            transition: transform var(--transition), color var(--transition);
        }
        .faq-question[aria-expanded="true"] .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }
        .faq-answer-inner {
            padding: 0 6px 16px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* CTA */
        .cta-section {
            background: var(--bg-dark);
            padding: 64px 0;
            text-align: center;
        }
        .cta-section .cta-title {
            font-size: clamp(1.25rem, 2.5vw, 1.6rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .cta-section .cta-desc {
            font-size: 0.95rem;
            color: #B0BACA;
            max-width: 560px;
            margin: 0 auto 24px;
            line-height: 1.8;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 0.95rem;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-emphasis);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .btn-accent {
            background: var(--accent);
            color: #1E293B;
        }
        .btn-accent:hover {
            background: var(--accent-light);
            color: #1E293B;
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.3);
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-bg);
            color: var(--primary-dark);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: #B0BACA;
            padding: 56px 0 24px;
        }
        .footer-grid {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-brand h3 {
            color: #fff;
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.8;
            color: #94A3B8;
            max-width: 320px;
            margin: 0;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.92rem;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col a {
            color: #B0BACA;
            font-size: 0.85rem;
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: #fff;
        }
        .footer-bottom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 18px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--text-muted);
            gap: 4px;
        }
        .footer-bottom a {
            color: #B0BACA;
            font-size: 0.8rem;
            transition: color var(--transition);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: var(--section-pad-mobile);
            }
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-menu.open {
                display: flex;
            }
            .schedule-grid {
                grid-template-columns: 1fr;
            }
            .entry-grid {
                grid-template-columns: 1fr;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .data-bar-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .data-bar-item .data-num {
                font-size: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .category-header {
                padding: 32px 0 28px;
            }
        }
        @media (max-width: 520px) {
            .data-bar-grid {
                grid-template-columns: 1fr;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #2B6CB0;
            --primary-light: #3A7BC8;
            --primary-dark: #1E4E8C;
            --primary-bg: #EAF1FB;
            --accent: #F59E0B;
            --accent-light: #FBBF24;
            --accent-deep: #F97316;
            --bg-white: #FFFFFF;
            --bg-gray: #F5F7FA;
            --bg-dark: #0F172A;
            --text-main: #1E293B;
            --text-secondary: #475569;
            --text-muted: #94A3B8;
            --border: #E2E8F0;
            --radius-card: 14px;
            --radius-btn: 9px;
            --radius-badge: 24px;
            --shadow-card: 0 4px 16px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.10);
            --shadow-emphasis: 0 8px 32px rgba(43, 108, 176, 0.18);
            --font-stack: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            --section-pad: 72px 0;
            --section-pad-mobile: 44px 0;
            --container-max: 1200px;
            --transition: 0.25s ease;
        }

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

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-main);
            background: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), opacity var(--transition), background var(--transition), box-shadow var(--transition);
        }

        a:hover,
        a:focus {
            color: var(--primary-dark);
        }

        a:focus-visible,
        button:focus-visible,
        .focusable:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .section {
            padding: var(--section-pad);
        }

        .section-alt {
            background: var(--bg-gray);
        }

        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-bg);
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .section-title {
            font-size: clamp(1.35rem, 2.2vw, 1.75rem);
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
            line-height: 1.4;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 760px;
            margin-bottom: 28px;
            line-height: 1.9;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 8px rgba(15, 23, 42, 0.04);
        }

        .nav-container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 14px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            border-radius: 8px;
            font-size: 1rem;
        }

        .logo-text {
            color: var(--text-main);
        }

        .logo-text:hover,
        .logo-text:focus {
            color: var(--primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li {
            margin: 0;
        }

        .nav-links a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 2px;
            border-bottom: 2px solid transparent;
            transition: color var(--transition), border-color var(--transition);
            white-space: nowrap;
        }

        .nav-links a:hover,
        .nav-links a:focus {
            color: var(--primary);
        }

        .nav-links a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
            font-weight: 600;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: 8px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--text-main);
            transition: background var(--transition);
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            background: var(--bg-gray);
        }

        .mobile-menu {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 12px 20px;
            flex-direction: column;
        }

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

        .mobile-menu a {
            display: block;
            padding: 12px 4px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border);
            transition: color var(--transition), background var(--transition);
        }

        .mobile-menu a:last-child {
            border-bottom: none;
        }

        .mobile-menu a:hover,
        .mobile-menu a:focus {
            color: var(--primary);
            background: var(--primary-bg);
        }

        .mobile-menu a.active {
            color: var(--primary);
            font-weight: 600;
            background: var(--primary-bg);
            padding-left: 10px;
        }

        /* Breadcrumb */
        .breadcrumb-section {
            background: var(--bg-gray);
            padding: 24px 0 16px;
            border-bottom: 1px solid var(--border);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 0.9rem;
            color: var(--text-muted);
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .breadcrumb li {
            margin: 0;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .breadcrumb li:not(:last-child)::after {
            content: '/';
            color: var(--text-muted);
            margin-left: 4px;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition);
        }

        .breadcrumb a:hover,
        .breadcrumb a:focus {
            color: var(--primary);
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* Category Hero Header */
        .category-header {
            background: var(--bg-gray);
            padding: 28px 0 40px;
            border-bottom: 1px solid var(--border);
        }

        .category-header h1 {
            font-size: clamp(1.8rem, 3vw, 2.3rem);
            font-weight: 700;
            color: var(--text-main);
            margin: 6px 0 12px;
            line-height: 1.35;
            letter-spacing: 0.3px;
        }

        .category-header .header-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.85;
            margin: 0;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
            border: 2px solid transparent;
            line-height: 1.4;
            text-align: center;
        }

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

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            box-shadow: var(--shadow-emphasis);
        }

        .btn-primary:active {
            transform: scale(0.98);
            background: var(--primary-dark);
        }

        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-secondary:hover,
        .btn-secondary:focus {
            background: var(--primary-bg);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
        }

        .btn-secondary:active {
            transform: scale(0.98);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
        }

        /* News List */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 22px;
        }

        .news-item {
            display: grid;
            grid-template-columns: 220px 1fr;
            gap: 20px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
        }

        .news-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: #d0dbe8;
        }

        .news-item-img {
            width: 220px;
            height: 150px;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .news-item-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }

        .news-item:hover .news-item-img img {
            transform: scale(1.03);
        }

        .news-item-content {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            gap: 8px;
            min-width: 0;
        }

        .news-item-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px 16px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .news-item-meta .news-date {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            color: var(--text-secondary);
        }

        .news-item-meta .news-tag {
            display: inline-block;
            padding: 2px 10px;
            background: var(--primary-bg);
            color: var(--primary);
            border-radius: var(--radius-badge);
            font-weight: 500;
            font-size: 0.75rem;
        }

        .news-item h3 {
            font-size: 1.12rem;
            font-weight: 700;
            margin: 0;
            line-height: 1.5;
            color: var(--text-main);
        }

        .news-item h3 a {
            color: var(--text-main);
            transition: color var(--transition);
        }

        .news-item h3 a:hover,
        .news-item h3 a:focus {
            color: var(--primary);
        }

        .news-item-summary {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin: 0;
        }

        .news-item .read-more {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            align-self: flex-start;
            transition: color var(--transition);
        }

        .news-item .read-more:hover,
        .news-item .read-more:focus {
            color: var(--primary-dark);
        }

        .news-item .read-more i {
            font-size: 0.8rem;
            transition: transform var(--transition);
        }

        .news-item .read-more:hover i {
            transform: translateX(3px);
        }

        /* Data Strip */
        .data-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .data-strip-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 22px 18px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition);
        }

        .data-strip-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .data-strip-item .data-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            display: block;
        }

        .data-strip-item .data-label {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin-top: 6px;
            display: block;
        }

        .data-strip-item .data-icon {
            font-size: 1.5rem;
            color: var(--accent);
            display: block;
            margin-bottom: 8px;
        }

        /* Category Entries */
        .category-entry-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .category-entry-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
        }

        .category-entry-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: #c8d6e8;
        }

        .category-entry-card .entry-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 46px;
            height: 46px;
            background: var(--primary-bg);
            color: var(--primary);
            border-radius: 12px;
            font-size: 1.3rem;
            margin-bottom: 12px;
        }

        .category-entry-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin: 0 0 6px;
            color: var(--text-main);
        }

        .category-entry-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin: 0 0 14px;
            line-height: 1.65;
        }

        .category-entry-card a {
            font-weight: 600;
            font-size: 0.88rem;
        }

        /* Featured Topics */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .topic-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition);
        }

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

        .topic-card-img {
            width: 100%;
            height: 160px;
            overflow: hidden;
        }

        .topic-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }

        .topic-card:hover .topic-card-img img {
            transform: scale(1.04);
        }

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

        .topic-card-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text-main);
            line-height: 1.45;
        }

        .topic-card-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0 0 12px;
            line-height: 1.7;
        }

        .topic-card-body .topic-link {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        /* FAQ */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            border-top: 1px solid var(--border);
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
        }

        .faq-question {
            width: 100%;
            background: transparent;
            border: none;
            padding: 18px 4px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-main);
            text-align: left;
            transition: color var(--transition);
        }

        .faq-question:hover,
        .faq-question:focus {
            color: var(--primary);
        }

        .faq-question .faq-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--primary-bg);
            color: var(--primary);
            font-size: 1rem;
            transition: transform var(--transition), background var(--transition), color var(--transition);
            flex-shrink: 0;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.8;
            padding: 0 4px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 4px 18px;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #1a2f50 0%, var(--bg-dark) 100%);
            padding: 72px 0;
            text-align: center;
            color: #E2E8F0;
        }

        .cta-section h2 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .cta-section p {
            font-size: 1rem;
            color: #cbd5e1;
            max-width: 640px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }

        .cta-section .btn-primary {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
        }

        .cta-section .btn-primary:hover,
        .cta-section .btn-primary:focus {
            background: var(--accent-deep);
            border-color: var(--accent-deep);
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.35);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: #94A3B8;
            padding: 56px 0 0;
        }

        .footer-grid {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px 36px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
        }

        .footer-brand h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 10px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: #94A3B8;
            line-height: 1.75;
            margin: 0;
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #E2E8F0;
            margin: 0 0 14px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul a {
            font-size: 0.88rem;
            color: #94A3B8;
            transition: color var(--transition);
        }

        .footer-col ul a:hover,
        .footer-col ul a:focus {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 18px 20px;
            text-align: center;
            font-size: 0.82rem;
            color: #64748B;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 4px;
        }

        .footer-bottom a {
            color: #94A3B8;
            transition: color var(--transition);
        }

        .footer-bottom a:hover,
        .footer-bottom a:focus {
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .news-item {
                grid-template-columns: 180px 1fr;
            }
            .news-item-img {
                width: 180px;
                height: 130px;
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-entry-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 14px;
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: span 3;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .section {
                padding: var(--section-pad-mobile);
            }
            .news-item {
                grid-template-columns: 1fr;
                gap: 14px;
                padding: 16px;
            }
            .news-item-img {
                width: 100%;
                height: 180px;
            }
            .news-item-content {
                gap: 10px;
            }
            .category-entry-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .category-header {
                padding: 20px 0 28px;
            }
            .category-header h1 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }
            .footer-brand {
                grid-column: span 1;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 4px;
            }
            .cta-section {
                padding: 48px 0;
            }
        }

        @media (max-width: 520px) {
            .nav-container {
                padding: 10px 14px;
            }
            .logo {
                font-size: 1.2rem;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.85rem;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .news-item h3 {
                font-size: 1rem;
            }
            .news-item-summary {
                font-size: 0.88rem;
            }
            .data-strip-item .data-number {
                font-size: 1.5rem;
            }
            .data-strip {
                gap: 8px;
            }
            .data-strip-item {
                padding: 16px 12px;
            }
            .topic-card-img {
                height: 140px;
            }
            .btn {
                padding: 10px 20px;
                font-size: 0.88rem;
                width: 100%;
            }
            .btn-sm {
                width: auto;
                padding: 7px 14px;
            }
            .breadcrumb-section {
                padding: 16px 0 10px;
            }
            .category-header {
                padding: 16px 0 24px;
            }
            .category-header h1 {
                font-size: 1.3rem;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #2B6CB0;
            --primary-light: #3A7BC8;
            --primary-dark: #1E4E8C;
            --primary-bg: #EAF1FB;
            --accent: #F59E0B;
            --accent-light: #FBBF24;
            --accent-deep: #F97316;
            --bg-white: #FFFFFF;
            --bg-gray: #F5F7FA;
            --bg-dark: #0F172A;
            --text-main: #1E293B;
            --text-secondary: #475569;
            --text-muted: #94A3B8;
            --border: #E2E8F0;
            --radius-card: 14px;
            --radius-btn: 9px;
            --radius-badge: 24px;
            --shadow-card: 0 4px 16px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.10);
            --shadow-emphasis: 0 8px 32px rgba(43, 108, 176, 0.18);
            --font-stack: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            --section-pad: 80px 0;
            --section-pad-mobile: 48px 0;
            --container-max: 1200px;
            --transition: 0.25s ease;
        }

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

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-main);
            background: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), opacity var(--transition);
        }

        a:hover,
        a:focus {
            color: var(--primary-dark);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        .focusable:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .section {
            padding: var(--section-pad);
        }

        .section-alt {
            background: var(--bg-gray);
        }

        .section-dark {
            background: var(--bg-dark);
            color: #E2E8F0;
            padding: 64px 0;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-bg);
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .section-title {
            font-size: clamp(1.35rem, 2.2vw, 1.75rem);
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 760px;
            margin-bottom: 28px;
            line-height: 1.9;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 8px rgba(15, 23, 42, 0.04);
        }

        .nav-container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 14px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            border-radius: 8px;
            font-size: 1rem;
        }

        .logo-text {
            color: var(--text-main);
        }

        .logo-text:hover,
        .logo-text:focus {
            color: var(--primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li {
            margin: 0;
        }

        .nav-links a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 2px;
            border-bottom: 2px solid transparent;
            transition: color var(--transition), border-color var(--transition);
            white-space: nowrap;
        }

        .nav-links a:hover,
        .nav-links a:focus {
            color: var(--primary);
        }

        .nav-links a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
            font-weight: 600;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: 8px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--text-main);
            transition: background var(--transition);
        }

        .nav-toggle:hover {
            background: var(--bg-gray);
        }

        .mobile-menu {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 12px 20px;
        }

        .mobile-menu ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .mobile-menu ul li {
            margin: 0;
        }

        .mobile-menu ul li a {
            display: block;
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
            color: var(--text-secondary);
            font-size: 1rem;
            font-weight: 500;
        }

        .mobile-menu ul li a:hover,
        .mobile-menu ul li a:focus {
            color: var(--primary);
        }

        .mobile-menu ul li a.active {
            color: var(--primary);
            font-weight: 600;
            background: var(--primary-bg);
            padding-left: 8px;
        }

        /* Breadcrumb */
        .breadcrumb {
            list-style: none;
            padding: 0;
            margin: 0 0 16px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
        }

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

        .breadcrumb li + li::before {
            content: ">";
            color: var(--text-muted);
        }

        .breadcrumb a {
            color: var(--text-secondary);
        }

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

        .breadcrumb [aria-current="page"] {
            color: var(--primary);
            font-weight: 500;
        }

        /* Category header */
        .category-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            padding: 32px 0 24px;
        }

        .category-header h1 {
            font-size: clamp(1.8rem, 3vw, 2.3rem);
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-main);
        }

        .category-header .category-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 760px;
            line-height: 1.9;
        }

        /* News list */
        .news-section {
            padding: var(--section-pad);
        }

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

        .news-item {
            display: flex;
            flex-wrap: wrap;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 16px;
            transition: box-shadow var(--transition), transform var(--transition);
        }

        .news-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .news-item .news-img {
            flex: 0 0 180px;
            margin-right: 20px;
            border-radius: 10px;
            overflow: hidden;
            align-self: flex-start;
        }

        .news-item .news-img img {
            width: 180px;
            height: 120px;
            object-fit: cover;
            border-radius: 10px;
            transition: transform 0.4s ease;
        }

        .news-item:hover .news-img img {
            transform: scale(1.03);
        }

        .news-item .news-content {
            flex: 1;
            min-width: 240px;
        }

        .news-meta {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .news-meta .badge {
            background: var(--primary-bg);
            color: var(--primary);
            padding: 2px 10px;
            border-radius: var(--radius-badge);
            font-size: 0.75rem;
            font-weight: 600;
        }

        .news-item h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-main);
            line-height: 1.5;
        }

        .news-item p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-bottom: 10px;
            line-height: 1.75;
        }

        .read-more {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .read-more:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }

        /* Channel cards */
        .channel-section .channel-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 24px;
        }

        .channel-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px;
            display: block;
            color: var(--text-main);
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
        }

        .channel-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: var(--primary);
            color: var(--text-main);
        }

        .channel-card .channel-icon {
            width: 40px;
            height: 40px;
            background: var(--primary-bg);
            color: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin-bottom: 14px;
        }

        .channel-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-main);
        }

        .channel-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* Data section */
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 24px;
        }

        .data-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 20px;
            text-align: center;
        }

        .data-card .data-num {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }

        .data-card .data-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        /* Featured */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            margin-top: 24px;
        }

        .featured-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: box-shadow var(--transition), transform var(--transition);
        }

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

        .featured-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

        .featured-card .featured-body {
            padding: 20px;
        }

        .featured-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-main);
        }

        .featured-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 12px;
        }

        .featured-card a {
            font-weight: 600;
            font-size: 0.9rem;
        }

        /* FAQ */
        .faq-list {
            margin-top: 20px;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            margin-bottom: 12px;
            overflow: hidden;
        }

        .faq-question {
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            padding: 16px 20px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: background var(--transition);
        }

        .faq-question:hover {
            background: var(--bg-gray);
        }

        .faq-question .faq-icon {
            font-size: 0.9rem;
            color: var(--primary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

        .faq-item.active .faq-question .faq-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            display: none;
            padding: 0 20px 16px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        /* CTA */
        .cta-box {
            background: var(--bg-dark);
            color: #E2E8F0;
            border-radius: var(--radius-card);
            padding: 36px 28px;
            text-align: center;
            box-shadow: var(--shadow-emphasis);
        }

        .cta-box h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: #fff;
        }

        .cta-box p {
            font-size: 0.95rem;
            color: #B0B8C5;
            max-width: 560px;
            margin: 0 auto 18px;
            line-height: 1.8;
        }

        .btn-primary {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 0.95rem;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            letter-spacing: 0.3px;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-emphasis);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-card);
        }

        .btn-secondary {
            display: inline-block;
            background: transparent;
            color: var(--primary);
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 0.95rem;
            font-weight: 600;
            border: 1px solid var(--primary);
            cursor: pointer;
            transition: background var(--transition), color var(--transition), transform var(--transition);
        }

        .btn-secondary:hover {
            background: var(--primary-bg);
            color: var(--primary-dark);
            transform: translateY(-1px);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: #CBD5E1;
            padding: 48px 0 28px;
            margin-top: 0;
        }

        .footer-grid {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
        }

        .footer-brand h3 {
            color: #fff;
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: #94A3B8;
            line-height: 1.8;
            max-width: 360px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 14px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: #94A3B8;
            font-size: 0.9rem;
            transition: color var(--transition);
        }

        .footer-col ul li a:hover,
        .footer-col ul li a:focus {
            color: #fff;
        }

        .footer-bottom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 20px 20px 0;
            border-top: 1px solid rgba(255,255,255,0.1);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: #94A3B8;
            margin-top: 32px;
        }

        .footer-bottom a {
            color: #CBD5E1;
            font-size: 0.85rem;
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 991px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .channel-section .channel-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 767px) {
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-menu {
                display: none;
            }
            .mobile-menu.open {
                display: block;
            }
            .news-item {
                flex-direction: column;
            }
            .news-item .news-img {
                flex: 0 0 auto;
                margin-right: 0;
                margin-bottom: 14px;
                width: 100%;
            }
            .news-item .news-img img {
                width: 100%;
                height: auto;
                aspect-ratio: 16/9;
                object-fit: cover;
            }
            .section {
                padding: var(--section-pad-mobile);
            }
            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .channel-section .channel-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
            .category-header .category-desc {
                font-size: 0.95rem;
            }
            .cta-box {
                padding: 24px 16px;
            }
        }

        @media (max-width: 520px) {
            .data-grid {
                grid-template-columns: 1fr;
            }
            .news-item h3 {
                font-size: 1.05rem;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                text-align: center;
                padding: 12px 16px;
            }
        }