/* roulang page: index */
:root {
            --primary: #0f172a;
            --primary-light: #1e293b;
            --secondary: #f59e0b;
            --secondary-hover: #d97706;
            --accent: #3b82f6;
            --accent-hover: #2563eb;
            --bg-dark: #0f172a;
            --bg-card: #ffffff;
            --bg-section: #f8fafc;
            --bg-alt: #f1f5f9;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-light: #94a3b8;
            --text-on-dark: #f1f5f9;
            --border-color: #e2e8f0;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 16px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
            --shadow: 0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
            --shadow-lg: 0 12px 32px rgba(0,0,0,0.12), 0 4px 8px rgba(0,0,0,0.06);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: #ffffff;
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: color var(--transition); }
        button { cursor: pointer; font-family: inherit; border: none; background: none; }
        input, textarea { font-family: inherit; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        .container-narrow { max-width: 980px; margin: 0 auto; padding: 0 20px; }

        /* Header & Navigation */
        .site-header {
            background: var(--primary);
            color: var(--text-on-dark);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 16px rgba(0,0,0,0.3);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 20px;
            max-width: 1200px;
            margin: 0 auto;
            width: 100%;
        }
        .site-logo {
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
        }
        .site-logo i { color: var(--secondary); font-size: 1.5rem; }
        .site-logo span { background: linear-gradient(135deg, #f59e0b, #f97316); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .header-actions { display: flex; align-items: center; gap: 16px; }
        .header-search { position: relative; }
        .header-search input {
            background: rgba(255,255,255,0.1);
            border: 1px solid rgba(255,255,255,0.15);
            border-radius: 20px;
            padding: 8px 16px 8px 36px;
            color: #fff;
            font-size: 0.875rem;
            width: 200px;
            transition: var(--transition);
            outline: none;
        }
        .header-search input::placeholder { color: rgba(255,255,255,0.5); }
        .header-search input:focus { background: rgba(255,255,255,0.18); border-color: var(--secondary); width: 240px; }
        .header-search i { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: rgba(255,255,255,0.5); font-size: 0.875rem; }
        .header-cta {
            background: var(--secondary);
            color: #0f172a;
            padding: 8px 20px;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.875rem;
            transition: var(--transition);
        }
        .header-cta:hover { background: var(--secondary-hover); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(245,158,11,0.4); }

        /* Channel Nav */
        .channel-nav {
            background: var(--primary-light);
            border-top: 1px solid rgba(255,255,255,0.06);
        }
        .channel-nav-inner {
            display: flex;
            align-items: center;
            gap: 4px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .channel-nav-inner::-webkit-scrollbar { display: none; }
        .channel-nav a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            font-size: 0.9rem;
            font-weight: 500;
            color: rgba(255,255,255,0.7);
            border-bottom: 2px solid transparent;
            transition: var(--transition);
            white-space: nowrap;
        }
        .channel-nav a:hover { color: #fff; background: rgba(255,255,255,0.06); }
        .channel-nav a.active { color: var(--secondary); border-bottom-color: var(--secondary); background: rgba(245,158,11,0.08); }
        .channel-nav a i { font-size: 0.8rem; }

        /* Mobile Toggle */
        .mobile-toggle { display: none; background: none; color: #fff; font-size: 1.4rem; padding: 4px 8px; border-radius: 6px; }
        .mobile-toggle:hover { background: rgba(255,255,255,0.1); }

        /* Hero */
        .hero {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,23,42,0.88) 0%, rgba(15,23,42,0.60) 60%, rgba(15,23,42,0.30) 100%);
            z-index: 1;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, #ffffff, transparent);
            z-index: 2;
        }
        .hero-content { position: relative; z-index: 3; padding: 80px 20px 100px; max-width: 1200px; margin: 0 auto; width: 100%; }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(245,158,11,0.18);
            border: 1px solid rgba(245,158,11,0.3);
            color: var(--secondary);
            padding: 6px 18px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }
        .hero h1 {
            font-size: clamp(2.2rem, 5.5vw, 3.8rem);
            font-weight: 800;
            line-height: 1.15;
            color: #fff;
            max-width: 800px;
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }
        .hero h1 span { background: linear-gradient(135deg, #f59e0b, #f97316); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .hero p {
            font-size: clamp(1rem, 2vw, 1.2rem);
            color: rgba(255,255,255,0.8);
            max-width: 640px;
            line-height: 1.7;
            margin-bottom: 36px;
        }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
        .hero-actions .btn-primary {
            background: var(--secondary);
            color: #0f172a;
            padding: 14px 36px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1.05rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .hero-actions .btn-primary:hover { background: var(--secondary-hover); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(245,158,11,0.4); }
        .hero-actions .btn-secondary {
            background: rgba(255,255,255,0.12);
            color: #fff;
            padding: 14px 36px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1.05rem;
            border: 1px solid rgba(255,255,255,0.2);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            backdrop-filter: blur(4px);
        }
        .hero-actions .btn-secondary:hover { background: rgba(255,255,255,0.2); transform: translateY(-2px); }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 48px;
            flex-wrap: wrap;
        }
        .hero-stats .stat-item { text-align: left; }
        .hero-stats .stat-item .num { font-size: 2rem; font-weight: 800; color: #fff; line-height: 1.2; }
        .hero-stats .stat-item .num i { color: var(--secondary); font-size: 1.2rem; margin-right: 4px; }
        .hero-stats .stat-item .label { font-size: 0.85rem; color: rgba(255,255,255,0.6); margin-top: 2px; }

        /* Sections */
        .section { padding: 80px 0; }
        .section-alt { background: var(--bg-section); }
        .section-dark { background: var(--primary); color: var(--text-on-dark); }
        .section-title { text-align: center; margin-bottom: 56px; }
        .section-title h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 800; letter-spacing: -0.01em; color: var(--text-primary); }
        .section-title p { color: var(--text-secondary); max-width: 600px; margin: 12px auto 0; font-size: 1.05rem; }
        .section-dark .section-title h2 { color: #fff; }
        .section-dark .section-title p { color: rgba(255,255,255,0.7); }

        /* Cards */
        .card-grid { display: grid; gap: 28px; }
        .card-grid-3 { grid-template-columns: repeat(3, 1fr); }
        .card-grid-4 { grid-template-columns: repeat(4, 1fr); }
        .card-grid-2 { grid-template-columns: repeat(2, 1fr); }
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
        .card-img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
        .card-body { padding: 24px; }
        .card-body h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; line-height: 1.4; }
        .card-body p { color: var(--text-secondary); font-size: 0.92rem; line-height: 1.6; }
        .card-body .card-tag {
            display: inline-block;
            background: rgba(59,130,246,0.1);
            color: var(--accent);
            padding: 2px 12px;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .card-body .card-meta { display: flex; align-items: center; gap: 16px; margin-top: 14px; font-size: 0.8rem; color: var(--text-light); }

        /* Feature Icons */
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 16px;
            background: rgba(59,130,246,0.1);
            color: var(--accent);
        }
        .feature-icon.gold { background: rgba(245,158,11,0.12); color: var(--secondary); }
        .feature-icon.rose { background: rgba(239,68,68,0.1); color: #ef4444; }
        .feature-icon.emerald { background: rgba(16,185,129,0.1); color: #10b981; }

        /* Stats / Numbers */
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
        .stat-card {
            padding: 28px 16px;
            background: rgba(255,255,255,0.06);
            border-radius: var(--radius);
            border: 1px solid rgba(255,255,255,0.08);
        }
        .stat-card .num { font-size: 2.4rem; font-weight: 800; color: var(--secondary); }
        .stat-card .label { color: rgba(255,255,255,0.7); font-size: 0.92rem; margin-top: 6px; }

        /* Game Cards */
        .game-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .game-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
        .game-card .thumb { position: relative; aspect-ratio: 4/3; overflow: hidden; }
        .game-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
        .game-card:hover .thumb img { transform: scale(1.05); }
        .game-card .thumb .overlay {
            position: absolute; inset: 0; background: linear-gradient(to top, rgba(15,23,42,0.7), transparent);
            opacity: 0; transition: var(--transition);
        }
        .game-card:hover .thumb .overlay { opacity: 1; }
        .game-card .thumb .play-btn {
            position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%) scale(0.8);
            width: 52px; height: 52px; border-radius: 50%; background: rgba(245,158,11,0.9);
            color: #0f172a; display: flex; align-items: center; justify-content: center;
            font-size: 1.2rem; opacity: 0; transition: var(--transition);
        }
        .game-card:hover .thumb .play-btn { opacity: 1; transform: translate(-50%,-50%) scale(1); }
        .game-card .info { padding: 16px 20px 20px; }
        .game-card .info h3 { font-size: 1rem; font-weight: 700; margin-bottom: 4px; }
        .game-card .info .meta { font-size: 0.8rem; color: var(--text-light); display: flex; align-items: center; gap: 12px; }

        /* News / CMS List */
        .news-list { display: flex; flex-direction: column; gap: 16px; }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 20px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .news-item:hover { box-shadow: var(--shadow); border-color: var(--secondary); }
        .news-item .date {
            min-width: 56px;
            text-align: center;
            background: var(--bg-alt);
            border-radius: var(--radius-sm);
            padding: 8px 4px;
        }
        .news-item .date .day { font-size: 1.4rem; font-weight: 800; color: var(--text-primary); line-height: 1.2; }
        .news-item .date .mon { font-size: 0.7rem; color: var(--text-light); text-transform: uppercase; }
        .news-item .content { flex: 1; }
        .news-item .content h4 { font-size: 1.05rem; font-weight: 700; margin-bottom: 4px; transition: color var(--transition); }
        .news-item:hover .content h4 { color: var(--accent); }
        .news-item .content p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.5; }
        .news-item .content .tag {
            display: inline-block;
            background: rgba(245,158,11,0.1);
            color: var(--secondary);
            padding: 0 10px;
            border-radius: 10px;
            font-size: 0.7rem;
            font-weight: 600;
            margin-top: 8px;
        }

        /* FAQ */
        .faq-grid { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--secondary); }
        .faq-item summary {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            list-style: none;
        }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 1.1rem;
            color: var(--text-light);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item[open] summary::after { transform: rotate(180deg); color: var(--secondary); }
        .faq-item .answer { padding: 0 24px 18px; color: var(--text-secondary); font-size: 0.95rem; line-height: 1.7; }

        /* CTA */
        .cta-section {
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,23,42,0.85), rgba(15,23,42,0.65));
        }
        .cta-content { position: relative; z-index: 2; text-align: center; padding: 80px 20px; }
        .cta-content h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 800; color: #fff; margin-bottom: 16px; }
        .cta-content p { color: rgba(255,255,255,0.75); max-width: 560px; margin: 0 auto 32px; font-size: 1.05rem; }
        .cta-content .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            background: var(--secondary);
            color: #0f172a;
            padding: 16px 44px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .cta-content .btn-cta:hover { background: var(--secondary-hover); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(245,158,11,0.45); }
        .cta-content .btn-cta i { font-size: 1rem; }

        /* Footer */
        .site-footer {
            background: var(--primary);
            color: rgba(255,255,255,0.7);
            padding: 60px 20px 32px;
        }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; max-width: 1200px; margin: 0 auto; }
        .footer-brand .logo { font-size: 1.3rem; font-weight: 700; color: #fff; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
        .footer-brand .logo i { color: var(--secondary); }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 320px; }
        .footer-col h4 { color: #fff; font-size: 0.95rem; font-weight: 600; margin-bottom: 16px; }
        .footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
        .footer-col ul li a { font-size: 0.88rem; color: rgba(255,255,255,0.6); transition: var(--transition); }
        .footer-col ul li a:hover { color: var(--secondary); }
        .footer-bottom {
            max-width: 1200px;
            margin: 40px auto 0;
            padding-top: 24px;
            border-top: 1px solid rgba(255,255,255,0.08);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--secondary); }

        /* Responsive */
        @media (max-width: 1024px) {
            .card-grid-4 { grid-template-columns: repeat(2, 1fr); }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .header-search input { width: 140px; }
            .header-search input:focus { width: 160px; }
            .header-cta { padding: 6px 16px; font-size: 0.8rem; }
            .channel-nav a { padding: 8px 14px; font-size: 0.82rem; }
            .hero { min-height: 420px; }
            .hero-content { padding: 60px 20px 80px; }
            .hero-stats { gap: 24px; }
            .hero-stats .stat-item .num { font-size: 1.5rem; }
            .card-grid-3 { grid-template-columns: repeat(2, 1fr); }
            .card-grid-2 { grid-template-columns: 1fr; }
            .section { padding: 56px 0; }
            .news-item { flex-direction: column; gap: 12px; padding: 16px; }
            .news-item .date { display: flex; align-items: center; gap: 8px; min-width: auto; padding: 4px 12px; }
            .news-item .date .day { font-size: 1rem; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
            .site-logo { font-size: 1.1rem; }
            .header-actions .header-search { display: none; }
            .mobile-toggle { display: block; }
            .channel-nav { display: none; }
            .channel-nav.open { display: block; }
            .channel-nav-inner { flex-direction: column; padding: 8px 0; }
            .channel-nav-inner a { width: 100%; border-bottom: none; border-left: 3px solid transparent; padding: 12px 20px; }
            .channel-nav-inner a.active { border-left-color: var(--secondary); }
        }
        @media (max-width: 520px) {
            .header-top { padding: 10px 16px; }
            .header-cta { display: none; }
            .hero { min-height: 360px; }
            .hero-content { padding: 40px 16px 60px; }
            .hero h1 { font-size: 1.8rem; }
            .hero-actions .btn-primary, .hero-actions .btn-secondary { padding: 12px 24px; font-size: 0.92rem; width: 100%; justify-content: center; }
            .card-grid-3, .card-grid-4 { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .stat-card { padding: 20px 12px; }
            .stat-card .num { font-size: 1.8rem; }
            .section { padding: 40px 0; }
            .section-title { margin-bottom: 32px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .faq-item summary { padding: 14px 16px; font-size: 0.92rem; }
            .faq-item .answer { padding: 0 16px 14px; }
        }
        @media (max-width: 380px) {
            .hero h1 { font-size: 1.5rem; }
            .hero-stats .stat-item .num { font-size: 1.2rem; }
        }

        /* Empty state */
        .empty-state { text-align: center; padding: 40px 20px; color: var(--text-light); font-size: 1rem; }
        .empty-state i { font-size: 2.4rem; margin-bottom: 12px; color: var(--text-light); opacity: 0.5; }

        /* Scroll to top */
        .scroll-top {
            position: fixed;
            bottom: 28px;
            right: 28px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--secondary);
            color: #0f172a;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            box-shadow: var(--shadow-lg);
            transition: var(--transition);
            z-index: 999;
            opacity: 0;
            pointer-events: none;
        }
        .scroll-top.visible { opacity: 1; pointer-events: auto; }
        .scroll-top:hover { background: var(--secondary-hover); transform: translateY(-3px); }

/* roulang page: article */
:root {
            --primary: #1a56db;
            --primary-dark: #0f3b8c;
            --primary-light: #3b82f6;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --dark: #0f172a;
            --dark-light: #1e293b;
            --gray-bg: #f8fafc;
            --gray-card: #f1f5f9;
            --text-main: #1e293b;
            --text-soft: #64748b;
            --radius: 0.75rem;
            --radius-lg: 1rem;
            --shadow-card: 0 4px 20px rgba(0,0,0,0.06);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.10);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *, *::before, *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            background: var(--gray-bg);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        button, input, textarea {
            font-family: inherit;
            transition: var(--transition);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Navigation ===== */
        .site-header {
            background: #ffffff;
            box-shadow: 0 2px 20px rgba(0,0,0,0.05);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid rgba(0,0,0,0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--dark);
            letter-spacing: 0.5px;
        }
        .logo i {
            color: var(--primary);
            font-size: 1.5rem;
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .channel-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            background: var(--gray-bg);
            border-radius: 40px;
            padding: 4px;
            overflow-x: auto;
            flex-wrap: nowrap;
            scrollbar-width: none;
        }
        .channel-nav::-webkit-scrollbar {
            display: none;
        }
        .channel-nav-inner {
            display: flex;
            gap: 2px;
        }
        .channel-nav a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-soft);
            white-space: nowrap;
            transition: var(--transition);
        }
        .channel-nav a i {
            font-size: 0.85rem;
        }
        .channel-nav a:hover {
            color: var(--primary);
            background: rgba(26,86,219,0.08);
        }
        .channel-nav a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(26,86,219,0.25);
        }
        .channel-nav a.active:hover {
            background: var(--primary-dark);
        }
        .header-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .header-search {
            display: flex;
            align-items: center;
            background: var(--gray-bg);
            border-radius: 40px;
            padding: 0 14px;
            border: 1px solid transparent;
            transition: var(--transition);
        }
        .header-search:focus-within {
            border-color: var(--primary-light);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(26,86,219,0.10);
        }
        .header-search input {
            border: none;
            background: transparent;
            padding: 8px 0;
            font-size: 0.85rem;
            width: 140px;
            outline: none;
            color: var(--text-main);
        }
        .header-search input::placeholder {
            color: var(--text-soft);
        }
        .header-search button {
            background: none;
            border: none;
            color: var(--text-soft);
            cursor: pointer;
            padding: 6px;
            font-size: 0.9rem;
        }
        .header-search button:hover {
            color: var(--primary);
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--dark);
            cursor: pointer;
            padding: 6px;
        }
        @media (max-width: 768px) {
            .header-inner {
                height: 56px;
                padding: 0 16px;
            }
            .channel-nav {
                position: fixed;
                top: 56px;
                left: 0;
                right: 0;
                background: #fff;
                border-radius: 0;
                padding: 8px 16px;
                box-shadow: 0 4px 20px rgba(0,0,0,0.08);
                display: none;
                flex-wrap: wrap;
                gap: 6px;
                z-index: 99;
            }
            .channel-nav.open {
                display: flex;
            }
            .channel-nav-inner {
                flex-wrap: wrap;
                gap: 4px;
            }
            .channel-nav a {
                padding: 6px 14px;
                font-size: 0.82rem;
            }
            .header-search input {
                width: 100px;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .header-right .header-search {
                display: none;
            }
        }
        @media (max-width: 520px) {
            .logo {
                font-size: 1.1rem;
            }
            .logo i {
                font-size: 1.2rem;
            }
            .channel-nav a {
                padding: 5px 12px;
                font-size: 0.75rem;
            }
        }

        /* ===== Article Hero ===== */
        .article-hero {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 60px 24px 50px;
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
            overflow: hidden;
        }
        .article-hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            z-index: 0;
        }
        .article-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15,23,42,0.70) 0%, rgba(15,23,42,0.90) 100%);
            z-index: 1;
        }
        .article-hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            width: 100%;
        }
        .article-category-badge {
            display: inline-block;
            background: rgba(245,158,11,0.20);
            color: var(--accent);
            padding: 4px 16px;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            backdrop-filter: blur(6px);
            border: 1px solid rgba(245,158,11,0.25);
            margin-bottom: 16px;
        }
        .article-hero h1 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
            margin: 0 0 16px;
            letter-spacing: 0.5px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            color: rgba(255,255,255,0.65);
            font-size: 0.9rem;
        }
        .article-meta i {
            margin-right: 6px;
            opacity: 0.7;
        }
        .article-meta span {
            display: flex;
            align-items: center;
        }
        @media (max-width: 768px) {
            .article-hero {
                min-height: 240px;
                padding: 40px 16px 36px;
            }
            .article-hero h1 {
                font-size: 1.5rem;
            }
            .article-meta {
                font-size: 0.8rem;
                gap: 12px;
            }
        }
        @media (max-width: 520px) {
            .article-hero h1 {
                font-size: 1.2rem;
            }
            .article-meta {
                font-size: 0.75rem;
                gap: 8px;
                flex-direction: column;
            }
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-wrap {
            background: #fff;
            border-bottom: 1px solid rgba(0,0,0,0.05);
            padding: 12px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-soft);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-soft);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb i {
            font-size: 0.65rem;
            color: #cbd5e1;
        }
        .breadcrumb .current {
            color: var(--text-main);
            font-weight: 500;
            max-width: 300px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        @media (max-width: 520px) {
            .breadcrumb {
                font-size: 0.75rem;
                gap: 4px;
            }
            .breadcrumb .current {
                max-width: 160px;
            }
        }

        /* ===== Article Body ===== */
        .article-body-wrap {
            padding: 40px 0 60px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            align-items: start;
        }
        .article-main {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 40px 44px;
            overflow: hidden;
        }
        .article-content {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-main);
        }
        .article-content h2,
        .article-content h3,
        .article-content h4 {
            margin-top: 1.6em;
            margin-bottom: 0.8em;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.4;
        }
        .article-content h2 {
            font-size: 1.5rem;
            border-bottom: 2px solid var(--gray-card);
            padding-bottom: 0.4em;
        }
        .article-content h3 {
            font-size: 1.2rem;
        }
        .article-content p {
            margin: 0 0 1.2em;
        }
        .article-content ul,
        .article-content ol {
            margin: 0 0 1.2em;
            padding-left: 1.6em;
        }
        .article-content li {
            margin-bottom: 0.4em;
        }
        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-content a:hover {
            color: var(--primary-dark);
        }
        .article-content img {
            border-radius: var(--radius);
            margin: 1.5em auto;
            box-shadow: 0 4px 20px rgba(0,0,0,0.06);
        }
        .article-content blockquote {
            border-left: 4px solid var(--primary-light);
            background: var(--gray-bg);
            padding: 16px 20px;
            margin: 1.2em 0;
            border-radius: 0 var(--radius) var(--radius) 0;
            color: var(--text-soft);
            font-style: italic;
        }
        .article-content code {
            background: var(--gray-card);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.9em;
            color: var(--primary-dark);
        }
        .article-content pre {
            background: var(--dark);
            color: #e2e8f0;
            padding: 20px 24px;
            border-radius: var(--radius);
            overflow-x: auto;
            margin: 1.2em 0;
            font-size: 0.9rem;
        }
        .article-share {
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--gray-card);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .article-share-label {
            font-size: 0.9rem;
            color: var(--text-soft);
            font-weight: 500;
        }
        .share-buttons {
            display: flex;
            gap: 8px;
        }
        .share-btn {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--gray-bg);
            color: var(--text-soft);
            font-size: 1rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .share-btn:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(26,86,219,0.25);
        }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 24px 20px;
        }
        .sidebar-card h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--dark);
            margin: 0 0 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i {
            color: var(--primary);
        }
        .sidebar-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .sidebar-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--gray-card);
        }
        .sidebar-list li:last-child {
            border-bottom: none;
        }
        .sidebar-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-main);
        }
        .sidebar-list a:hover {
            color: var(--primary);
        }
        .sidebar-list a i {
            color: var(--primary-light);
            font-size: 0.8rem;
        }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            text-align: center;
            padding: 28px 20px;
        }
        .sidebar-cta h3 {
            color: #fff;
            justify-content: center;
        }
        .sidebar-cta p {
            font-size: 0.9rem;
            opacity: 0.85;
            margin: 0 0 16px;
        }
        .sidebar-cta .btn {
            display: inline-block;
            background: var(--accent);
            color: var(--dark);
            padding: 10px 28px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.9rem;
        }
        .sidebar-cta .btn:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(245,158,11,0.30);
        }

        @media (max-width: 992px) {
            .article-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .article-main {
                padding: 28px 24px;
            }
            .article-sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }
        @media (max-width: 640px) {
            .article-body-wrap {
                padding: 24px 0 40px;
            }
            .article-main {
                padding: 20px 16px;
                border-radius: var(--radius);
            }
            .article-content {
                font-size: 0.95rem;
            }
            .article-content h2 {
                font-size: 1.25rem;
            }
            .article-content h3 {
                font-size: 1.05rem;
            }
            .article-sidebar {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .article-share {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* ===== Not Found ===== */
        .not-found-wrap {
            text-align: center;
            padding: 80px 24px;
        }
        .not-found-wrap i {
            font-size: 4rem;
            color: var(--text-soft);
            opacity: 0.4;
            margin-bottom: 20px;
        }
        .not-found-wrap h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--dark);
            margin: 0 0 12px;
        }
        .not-found-wrap p {
            color: var(--text-soft);
            margin: 0 0 28px;
            font-size: 1.05rem;
        }
        .not-found-wrap .btn-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            padding: 12px 32px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
        }
        .not-found-wrap .btn-home:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26,86,219,0.30);
        }

        /* ===== Related Section ===== */
        .related-section {
            padding: 60px 0;
            background: #fff;
        }
        .related-section .section-title {
            text-align: center;
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--dark);
            margin: 0 0 36px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--gray-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
            box-shadow: 0 2px 12px rgba(0,0,0,0.04);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 0;
        }
        .related-card-body {
            padding: 18px 20px 22px;
        }
        .related-card-body h4 {
            font-size: 1rem;
            font-weight: 600;
            margin: 0 0 8px;
            color: var(--dark);
            line-height: 1.4;
        }
        .related-card-body p {
            font-size: 0.85rem;
            color: var(--text-soft);
            margin: 0;
            line-height: 1.6;
        }
        .related-card-body .related-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 12px;
            font-size: 0.85rem;
            color: var(--primary);
            font-weight: 500;
        }
        .related-card-body .related-link:hover {
            color: var(--primary-dark);
            gap: 10px;
        }
        @media (max-width: 768px) {
            .related-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .related-section {
                padding: 40px 0;
            }
            .related-section .section-title {
                font-size: 1.3rem;
                margin-bottom: 24px;
            }
        }
        @media (max-width: 520px) {
            .related-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .related-card img {
                height: 140px;
            }
            .related-card-body {
                padding: 14px 16px 18px;
            }
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 70px 24px;
            background: linear-gradient(135deg, var(--dark) 0%, #1e293b 100%);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 16px;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255,255,255,0.7);
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .cta-buttons {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .cta-btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: var(--dark);
            padding: 14px 36px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
        }
        .cta-btn-primary:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245,158,11,0.30);
        }
        .cta-btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            padding: 14px 36px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid rgba(255,255,255,0.25);
            transition: var(--transition);
        }
        .cta-btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
        }
        @media (max-width: 640px) {
            .cta-section {
                padding: 50px 16px;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .cta-section p {
                font-size: 0.9rem;
            }
            .cta-btn-primary,
            .cta-btn-outline {
                padding: 12px 28px;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255,255,255,0.75);
            padding: 60px 24px 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            max-width: 1200px;
            margin: 0 auto 40px;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 16px;
            font-size: 1.3rem;
        }
        .footer-brand .logo i {
            color: var(--accent);
        }
        .footer-brand .logo span {
            background: linear-gradient(135deg, #fff, #94a3b8);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.7;
            color: rgba(255,255,255,0.55);
            margin: 0;
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin: 0 0 16px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.55);
            display: flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            max-width: 1200px;
            margin: 0 auto;
            padding-top: 24px;
            border-top: 1px solid rgba(255,255,255,0.08);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a {
            color: rgba(255,255,255,0.5);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        .footer-bottom span {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }
        @media (max-width: 640px) {
            .site-footer {
                padding: 40px 16px 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .footer-bottom span {
                justify-content: center;
            }
        }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mt-8 { margin-top: 2rem; }
        .mb-8 { margin-bottom: 2rem; }
        .gap-4 { gap: 1rem; }
        .flex-center { display: flex; align-items: center; justify-content: center; }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #6366f1;
            --primary-dark: #4f46e5;
            --primary-light: #818cf8;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --accent-light: #fbbf24;
            --dark-bg: #0b0b1a;
            --dark-card: #13132b;
            --dark-card-hover: #1a1a3e;
            --dark-border: #2a2a5a;
            --text-light: #f1f5f9;
            --text-muted: #94a3b8;
            --text-dark: #1e293b;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }

        body {
            font-family: var(--font-sans);
            background: var(--dark-bg);
            color: var(--text-light);
            line-height: 1.7;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            transition: var(--transition);
        }
        input,
        textarea {
            font-family: inherit;
            outline: none;
        }

        /* ===== Container ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Brand Bar ===== */
        .brand-bar {
            background: rgba(11, 11, 26, 0.98);
            border-bottom: 1px solid var(--dark-border);
            padding: 12px 0;
            position: relative;
            z-index: 100;
        }
        .brand-bar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
        }
        .logo i {
            color: var(--primary-light);
            font-size: 1.75rem;
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary-light), var(--accent-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .brand-bar .tagline {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: none;
        }
        @media (min-width: 640px) {
            .brand-bar .tagline {
                display: block;
            }
        }

        /* ===== Channel Nav ===== */
        .channel-nav {
            background: rgba(11, 11, 26, 0.95);
            border-bottom: 1px solid var(--dark-border);
            position: sticky;
            top: 0;
            z-index: 99;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .channel-nav-inner {
            display: flex;
            align-items: center;
            gap: 4px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .channel-nav-inner::-webkit-scrollbar {
            display: none;
        }
        .channel-nav-inner a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 14px 20px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            border-bottom: 3px solid transparent;
            white-space: nowrap;
            transition: var(--transition);
            position: relative;
        }
        .channel-nav-inner a i {
            font-size: 1rem;
            opacity: 0.7;
        }
        .channel-nav-inner a:hover {
            color: var(--text-light);
            background: rgba(99, 102, 241, 0.08);
        }
        .channel-nav-inner a.active {
            color: var(--primary-light);
            border-bottom-color: var(--primary);
            background: rgba(99, 102, 241, 0.1);
        }
        .channel-nav-inner a.active i {
            opacity: 1;
            color: var(--primary-light);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 80px 24px 60px;
            overflow: hidden;
            background: var(--dark-bg);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.35;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(11, 11, 26, 0.3) 0%, var(--dark-bg) 80%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(99, 102, 241, 0.2);
            border: 1px solid rgba(99, 102, 241, 0.3);
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--primary-light);
            margin-bottom: 24px;
            letter-spacing: 1px;
            text-transform: uppercase;
            font-weight: 600;
        }
        .hero-badge i {
            font-size: 0.75rem;
        }
        .hero h1 {
            font-size: clamp(2.2rem, 6vw, 4.2rem);
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -1px;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #fff 40%, var(--primary-light) 70%, var(--accent-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: clamp(1rem, 2vw, 1.25rem);
            color: var(--text-muted);
            max-width: 680px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 36px;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 4px 24px rgba(99, 102, 241, 0.4);
            transition: var(--transition);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 40px rgba(99, 102, 241, 0.55);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 36px;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--text-light);
            transition: var(--transition);
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.25);
            transform: translateY(-2px);
        }

        /* ===== Section Common ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: rgba(19, 19, 43, 0.5);
        }
        .section-title {
            font-size: clamp(1.8rem, 3.5vw, 2.8rem);
            font-weight: 800;
            text-align: center;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
            color: #fff;
        }
        .section-subtitle {
            text-align: center;
            color: var(--text-muted);
            font-size: 1.1rem;
            max-width: 620px;
            margin: 0 auto 48px;
            line-height: 1.7;
        }
        .section-subtitle i {
            color: var(--accent);
            margin: 0 4px;
        }

        /* ===== Feature Cards ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 28px;
        }
        .feature-card {
            background: var(--dark-card);
            border: 1px solid var(--dark-border);
            border-radius: var(--radius);
            padding: 36px 28px 32px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            border-color: rgba(99, 102, 241, 0.3);
            box-shadow: var(--shadow-glow);
            background: var(--dark-card-hover);
        }
        .feature-card .icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            margin-bottom: 18px;
            background: rgba(99, 102, 241, 0.15);
            color: var(--primary-light);
        }
        .feature-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: #fff;
        }
        .feature-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== Cover Cards ===== */
        .cover-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }
        .cover-card {
            background: var(--dark-card);
            border: 1px solid var(--dark-border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
        }
        .cover-card:hover {
            transform: translateY(-5px);
            border-color: rgba(99, 102, 241, 0.3);
            box-shadow: var(--shadow-glow);
        }
        .cover-card .cover-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
            transition: transform 0.5s ease;
        }
        .cover-card:hover .cover-img {
            transform: scale(1.03);
        }
        .cover-card .cover-body {
            padding: 20px 22px 24px;
        }
        .cover-card .cover-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            background: rgba(99, 102, 241, 0.2);
            color: var(--primary-light);
            margin-bottom: 10px;
        }
        .cover-card h4 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: #fff;
        }
        .cover-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
        }
        .cover-card .cover-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 14px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .cover-card .cover-meta i {
            margin-right: 4px;
            color: var(--primary-light);
        }

        /* ===== Process Steps ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 28px;
            counter-reset: step;
        }
        .process-step {
            background: var(--dark-card);
            border: 1px solid var(--dark-border);
            border-radius: var(--radius);
            padding: 32px 24px 28px;
            text-align: center;
            transition: var(--transition);
            position: relative;
        }
        .process-step:hover {
            border-color: rgba(99, 102, 241, 0.25);
            transform: translateY(-4px);
            box-shadow: var(--shadow-glow);
        }
        .process-step .step-num {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 800;
            margin: 0 auto 16px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
        }
        .process-step h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: #fff;
        }
        .process-step p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* ===== Advantages ===== */
        .advantages-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
        }
        .advantage-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: var(--dark-card);
            border: 1px solid var(--dark-border);
            border-radius: var(--radius-sm);
            padding: 24px 22px;
            transition: var(--transition);
        }
        .advantage-item:hover {
            border-color: rgba(99, 102, 241, 0.25);
            background: var(--dark-card-hover);
        }
        .advantage-item .adv-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            background: rgba(99, 102, 241, 0.15);
            color: var(--primary-light);
        }
        .advantage-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: #fff;
        }
        .advantage-item p {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--dark-card);
            border: 1px solid var(--dark-border);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(99, 102, 241, 0.2);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-light);
            text-align: left;
            background: transparent;
            gap: 12px;
        }
        .faq-question i {
            color: var(--primary-light);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(245, 158, 11, 0.06));
            border-top: 1px solid var(--dark-border);
            border-bottom: 1px solid var(--dark-border);
        }
        .cta-box {
            background: var(--dark-card);
            border: 1px solid var(--dark-border);
            border-radius: var(--radius-lg);
            padding: 56px 40px;
            text-align: center;
            max-width: 820px;
            margin: 0 auto;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.05), transparent 60%);
            pointer-events: none;
        }
        .cta-box h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 800;
            margin-bottom: 14px;
            color: #fff;
            position: relative;
        }
        .cta-box p {
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.7;
            position: relative;
        }
        .cta-box .btn-primary {
            position: relative;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: rgba(8, 8, 20, 0.98);
            border-top: 1px solid var(--dark-border);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 36px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px 40px;
        }
        .footer-brand .logo {
            margin-bottom: 14px;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.7;
            max-width: 340px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.88rem;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary-light);
            transform: translateX(4px);
        }
        .footer-col ul li a i {
            width: 18px;
            color: var(--primary-light);
            font-size: 0.85rem;
        }
        .footer-bottom {
            border-top: 1px solid var(--dark-border);
            padding: 20px 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            max-width: 1200px;
            margin: 0 auto;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
            transition: var(--transition);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }
        .footer-bottom span a {
            margin: 0 4px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero {
                min-height: 60vh;
                padding: 60px 24px 48px;
            }
            .section {
                padding: 60px 0;
            }
        }

        @media (max-width: 768px) {
            .brand-bar .tagline {
                display: none;
            }
            .channel-nav-inner a {
                padding: 12px 14px;
                font-size: 0.85rem;
            }
            .channel-nav-inner a i {
                font-size: 0.85rem;
            }
            .hero {
                min-height: 50vh;
                padding: 48px 20px 40px;
            }
            .hero h1 {
                font-size: clamp(1.8rem, 5vw, 2.6rem);
            }
            .hero p {
                font-size: 0.95rem;
                margin-bottom: 28px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                max-width: 320px;
                justify-content: center;
                padding: 14px 28px;
                font-size: 0.95rem;
            }
            .section {
                padding: 48px 0;
            }
            .section-subtitle {
                font-size: 0.95rem;
                margin-bottom: 32px;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .cover-grid {
                grid-template-columns: 1fr 1fr;
            }
            .process-grid {
                grid-template-columns: 1fr 1fr;
            }
            .advantages-list {
                grid-template-columns: 1fr;
            }
            .cta-box {
                padding: 40px 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .brand-bar-inner {
                padding: 0 16px;
            }
            .logo {
                font-size: 1.2rem;
            }
            .logo i {
                font-size: 1.3rem;
            }
            .channel-nav-inner {
                padding: 0 12px;
                gap: 2px;
            }
            .channel-nav-inner a {
                padding: 10px 12px;
                font-size: 0.78rem;
                gap: 4px;
            }
            .channel-nav-inner a i {
                font-size: 0.75rem;
            }
            .hero {
                min-height: auto;
                padding: 40px 16px 36px;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero p {
                font-size: 0.88rem;
            }
            .hero-badge {
                font-size: 0.7rem;
                padding: 6px 14px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .cover-grid {
                grid-template-columns: 1fr;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .faq-answer {
                font-size: 0.85rem;
                padding: 0 16px;
            }
            .faq-item.active .faq-answer {
                padding: 0 16px 16px;
            }
            .cta-box {
                padding: 32px 16px;
                border-radius: var(--radius);
            }
            .cta-box h2 {
                font-size: 1.3rem;
            }
            .cta-box p {
                font-size: 0.9rem;
            }
        }

        /* ===== Animations ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-fade-in {
            animation: fadeInUp 0.6s ease forwards;
        }
        .animate-delay-1 {
            animation-delay: 0.1s;
        }
        .animate-delay-2 {
            animation-delay: 0.2s;
        }
        .animate-delay-3 {
            animation-delay: 0.3s;
        }
        .animate-delay-4 {
            animation-delay: 0.4s;
        }

        /* ===== Focus Visible ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
            border-radius: 4px;
        }