/* roulang page: index */
:root {
            --bg-primary: #111827;
            --bg-secondary: #161c2a;
            --bg-card: #1a2132;
            --bg-card-hover: #1f273b;
            --bg-surface: #1e2535;
            --bg-hero-overlay: rgba(8, 10, 18, 0.82);
            --accent-gold: #C5A059;
            --accent-gold-light: #D4AC0D;
            --accent-amber: #FFBF00;
            --accent-blue: #3b5998;
            --accent-blue-light: #4a6fb5;
            --text-primary: #F0F0F5;
            --text-secondary: #C8CCD6;
            --text-muted: #8B909D;
            --text-gold: #D4AC0D;
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-gold: rgba(197, 160, 89, 0.45);
            --border-gold-hover: rgba(197, 160, 89, 0.75);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.5);
            --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.6);
            --shadow-gold: 0 4px 18px rgba(197, 160, 89, 0.25);
            --shadow-blue: 0 4px 16px rgba(59, 89, 152, 0.2);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            --font-body: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.5rem;
            --spacing-lg: 2.5rem;
            --spacing-xl: 4rem;
            --spacing-2xl: 6rem;
        }

        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: var(--font-body);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { text-decoration: none; color: inherit; transition: color var(--transition-fast); }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; padding: 0; }
        button, .btn { cursor: pointer; font-family: var(--font-body); }
        h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); line-height: 1.25; font-weight: 700; }

        .container-custom { max-width: 1200px; margin: 0 auto; padding: 0 1.25rem; }

        /* Header / Nav */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1050;
            background: rgba(17, 24, 39, 0.92); backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
        }
        .site-header.scrolled { background: rgba(12, 17, 28, 0.97); box-shadow: var(--shadow-md); }
        .navbar-custom { display: flex; align-items: center; justify-content: space-between; padding: 0.7rem 0; }
        .navbar-brand-custom {
            font-family: var(--font-heading); font-weight: 800; font-size: 1.15rem;
            color: var(--accent-gold-light); letter-spacing: 0.03em;
            display: flex; align-items: center; gap: 0.5rem; white-space: nowrap;
        }
        .navbar-brand-custom i { font-size: 1.4rem; color: var(--accent-amber); }
        .navbar-brand-custom:hover { color: var(--accent-amber); }
        .nav-links-desktop { display: flex; align-items: center; gap: 0.3rem; }
        .nav-link-custom {
            color: var(--text-secondary); padding: 0.55rem 1.05rem; border-radius: var(--radius-sm);
            font-weight: 500; font-size: 0.93rem; transition: all var(--transition-fast);
            position: relative; white-space: nowrap;
        }
        .nav-link-custom:hover { color: var(--text-primary); background: rgba(255,255,255,0.04); }
        .nav-link-custom.active { color: var(--accent-gold-light); background: rgba(197,160,89,0.08); }
        .nav-auth-group { display: flex; align-items: center; gap: 0.6rem; margin-left: 0.6rem; }
        .btn-nav-login {
            color: var(--text-primary); background: transparent; border: 1px solid var(--border-subtle);
            padding: 0.5rem 1.2rem; border-radius: var(--radius-sm); font-weight: 500;
            font-size: 0.9rem; transition: all var(--transition-fast); white-space: nowrap;
        }
        .btn-nav-login:hover { border-color: var(--accent-gold); color: var(--accent-gold-light); }
        .btn-nav-signup {
            color: #1a1a1a; background: linear-gradient(135deg, var(--accent-amber), var(--accent-gold));
            padding: 0.55rem 1.3rem; border-radius: var(--radius-sm); font-weight: 600;
            font-size: 0.9rem; border: none; white-space: nowrap;
            transition: all var(--transition-fast); box-shadow: 0 2px 10px rgba(255,191,0,0.25);
        }
        .btn-nav-signup:hover { box-shadow: 0 4px 18px rgba(255,191,0,0.4); transform: translateY(-1px); color: #1a1a1a; }

        .mobile-menu-toggle { display: none; background: none; border: none; color: var(--text-primary); font-size: 1.5rem; padding: 0.4rem; }
        .mobile-nav-panel { display: none; position: fixed; top: 62px; left: 0; right: 0; bottom: 0; background: rgba(10,13,22,0.97); backdrop-filter: blur(16px); z-index: 1049; flex-direction: column; padding: 1.5rem; gap: 0.5rem; overflow-y: auto; }
        .mobile-nav-panel.open { display: flex; }
        .mobile-nav-panel .nav-link-custom { font-size: 1.05rem; padding: 0.8rem 1rem; }
        .mobile-nav-panel .nav-auth-group { flex-direction: column; gap: 0.6rem; margin-top: 0.8rem; margin-left: 0; }
        .mobile-nav-panel .btn-nav-login, .mobile-nav-panel .btn-nav-signup { width: 100%; text-align: center; padding: 0.7rem; font-size: 1rem; }

        @media (max-width: 992px) {
            .nav-links-desktop { display: none; }
            .nav-auth-group.desktop-only { display: none; }
            .mobile-menu-toggle { display: block; }
            .navbar-brand-custom { font-size: 1rem; }
        }
        @media (min-width: 993px) {
            .mobile-nav-panel { display: none !important; }
            .nav-auth-group.desktop-only { display: flex; }
        }

        /* Hero */
        .hero-section {
            position: relative; min-height: 85vh; display: flex; align-items: center; justify-content: center;
            background: url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            padding: 6rem 1.25rem 4rem; margin-top: 0;
        }
        .hero-overlay {
            position: absolute; inset: 0; background: var(--bg-hero-overlay);
            background: linear-gradient(180deg, rgba(8,10,18,0.88) 0%, rgba(17,24,39,0.78) 100%);
        }
        .hero-content { position: relative; z-index: 2; text-align: center; max-width: 820px; }
        .hero-badge {
            display: inline-block; padding: 0.4rem 1.2rem; border-radius: 50px;
            background: rgba(197,160,89,0.18); border: 1px solid var(--border-gold);
            color: var(--accent-amber); font-weight: 600; font-size: 0.85rem;
            letter-spacing: 0.04em; margin-bottom: 1.5rem; text-transform: uppercase;
        }
        .hero-title {
            font-size: 3rem; font-weight: 800; color: #ffffff; margin-bottom: 1.2rem;
            line-height: 1.2; letter-spacing: -0.01em;
        }
        .hero-title span { color: var(--accent-amber); }
        .hero-desc { font-size: 1.1rem; color: var(--text-secondary); margin-bottom: 2rem; line-height: 1.7; max-width: 650px; margin-left: auto; margin-right: auto; }
        .hero-cta-group { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; margin-bottom: 2rem; }
        .btn-hero-primary {
            background: linear-gradient(135deg, var(--accent-amber), var(--accent-gold));
            color: #1a1a1a; font-weight: 700; padding: 0.85rem 2.2rem; border-radius: 50px;
            font-size: 1.05rem; border: none; transition: all var(--transition-smooth);
            box-shadow: 0 6px 22px rgba(255,191,0,0.35);
        }
        .btn-hero-primary:hover { box-shadow: 0 8px 30px rgba(255,191,0,0.5); transform: translateY(-2px); color: #1a1a1a; }
        .btn-hero-outline {
            background: transparent; color: #ffffff; border: 2px solid rgba(255,255,255,0.5);
            padding: 0.8rem 2rem; border-radius: 50px; font-weight: 600; font-size: 1.05rem;
            transition: all var(--transition-smooth);
        }
        .btn-hero-outline:hover { border-color: #ffffff; background: rgba(255,255,255,0.06); color: #ffffff; }
        .hero-countdown {
            display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; margin-top: 0.8rem;
        }
        .countdown-item {
            background: rgba(255,255,255,0.06); border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md); padding: 0.9rem 1.4rem; min-width: 75px; text-align: center;
            backdrop-filter: blur(6px);
        }
        .countdown-num { font-size: 2rem; font-weight: 800; color: var(--accent-amber); line-height: 1; }
        .countdown-label { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; margin-top: 0.25rem; }

        @media (max-width: 768px) {
            .hero-title { font-size: 1.9rem; }
            .hero-desc { font-size: 0.95rem; }
            .hero-section { min-height: 75vh; padding: 5rem 1rem 3rem; }
            .countdown-item { min-width: 60px; padding: 0.65rem 0.8rem; }
            .countdown-num { font-size: 1.4rem; }
        }

        /* Sections */
        .section-block { padding: var(--spacing-xl) 0; }
        .section-block.bg-alt { background-color: var(--bg-secondary); }
        .section-block.bg-dark { background-color: var(--bg-primary); }
        .section-label {
            display: inline-block; font-size: 0.8rem; font-weight: 700; letter-spacing: 0.06em;
            color: var(--accent-gold-light); text-transform: uppercase; margin-bottom: 0.6rem;
        }
        .section-title { font-size: 2rem; font-weight: 800; color: #ffffff; margin-bottom: 0.8rem; }
        .section-subtitle { font-size: 1rem; color: var(--text-muted); margin-bottom: 2rem; max-width: 600px; }

        /* Voucher Grid */
        .voucher-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1.5rem; }
        .voucher-card {
            background: var(--bg-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg);
            overflow: hidden; transition: all var(--transition-smooth); box-shadow: var(--shadow-sm);
            display: flex; flex-direction: column;
        }
        .voucher-card:hover { border-color: var(--border-gold); box-shadow: var(--shadow-gold); transform: translateY(-3px); }
        .voucher-card-img { height: 160px; overflow: hidden; position: relative; }
        .voucher-card-img img { width: 100%; height: 100%; object-fit: cover; }
        .voucher-tag {
            position: absolute; top: 0.75rem; right: 0.75rem; padding: 0.3rem 0.9rem;
            border-radius: 50px; background: var(--accent-amber); color: #1a1a1a;
            font-weight: 700; font-size: 0.75rem; letter-spacing: 0.03em;
        }
        .voucher-card-body { padding: 1.3rem 1.2rem 1.4rem; flex: 1; display: flex; flex-direction: column; }
        .voucher-card-title { font-size: 1.1rem; font-weight: 700; color: #ffffff; margin-bottom: 0.4rem; }
        .voucher-card-desc { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 1rem; flex: 1; }
        .voucher-card-footer { display: flex; align-items: center; justify-content: space-between; }
        .voucher-value { font-weight: 800; font-size: 1.2rem; color: var(--accent-amber); }
        .btn-voucher {
            background: transparent; border: 1px solid var(--border-gold); color: var(--accent-gold-light);
            padding: 0.45rem 1.1rem; border-radius: 50px; font-weight: 600; font-size: 0.85rem;
            transition: all var(--transition-fast);
        }
        .btn-voucher:hover { background: rgba(197,160,89,0.12); border-color: var(--accent-amber); color: var(--accent-amber); }

        /* Rules */
        .rules-list { max-width: 720px; }
        .rules-list li {
            display: flex; gap: 1rem; padding: 1rem 0; border-bottom: 1px solid var(--border-subtle);
            align-items: flex-start;
        }
        .rules-list li:last-child { border-bottom: none; }
        .rules-icon {
            flex-shrink: 0; width: 38px; height: 38px; border-radius: 50%;
            background: rgba(197,160,89,0.15); display: flex; align-items: center; justify-content: center;
            color: var(--accent-amber); font-size: 1rem;
        }
        .rules-text strong { color: #ffffff; display: block; margin-bottom: 0.2rem; }
        .rules-text span { color: var(--text-muted); font-size: 0.9rem; }

        /* Selling Points */
        .selling-points-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
        .sp-card {
            background: var(--bg-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg);
            padding: 2rem 1.5rem; text-align: left; transition: all var(--transition-smooth);
            box-shadow: var(--shadow-sm); position: relative; overflow: hidden;
        }
        .sp-card:hover { border-color: var(--border-gold-hover); box-shadow: var(--shadow-gold); transform: translateY(-2px); }
        .sp-card-icon { font-size: 2.2rem; color: var(--accent-amber); margin-bottom: 1rem; }
        .sp-card h3 { font-size: 1.15rem; font-weight: 700; color: #ffffff; margin-bottom: 0.5rem; }
        .sp-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }
        @media (max-width: 768px) { .selling-points-grid { grid-template-columns: 1fr; } }

        /* News / CMS */
        .news-layout { display: grid; grid-template-columns: 1.6fr 1fr; gap: 2.5rem; align-items: start; }
        .news-main-list { display: flex; flex-direction: column; gap: 0.2rem; }
        .news-item {
            display: flex; align-items: baseline; gap: 1rem; padding: 0.9rem 0;
            border-bottom: 1px solid var(--border-subtle); transition: all var(--transition-fast);
        }
        .news-item:hover { background: rgba(255,255,255,0.015); }
        .news-item:last-child { border-bottom: none; }
        .news-item-meta { flex-shrink: 0; font-size: 0.78rem; color: var(--text-muted); min-width: 65px; }
        .news-item-title { font-size: 0.95rem; font-weight: 600; color: var(--text-primary); line-height: 1.4; transition: color var(--transition-fast); }
        .news-item:hover .news-item-title { color: var(--accent-gold-light); }
        .news-item-cat {
            flex-shrink: 0; font-size: 0.72rem; padding: 0.2rem 0.65rem; border-radius: 50px;
            background: rgba(197,160,89,0.12); color: var(--accent-gold-light); font-weight: 500;
        }
        .news-sidebar { background: var(--bg-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: 1.5rem; }
        .news-sidebar h4 { font-size: 1rem; font-weight: 700; color: #ffffff; margin-bottom: 1rem; }
        .news-sidebar-item { padding: 0.6rem 0; border-bottom: 1px solid var(--border-subtle); font-size: 0.9rem; color: var(--text-secondary); transition: color var(--transition-fast); cursor: pointer; }
        .news-sidebar-item:hover { color: var(--accent-gold-light); }
        .news-sidebar-item:last-child { border-bottom: none; }
        .news-empty { color: var(--text-muted); padding: 2rem 0; text-align: center; font-style: italic; }
        @media (max-width: 768px) { .news-layout { grid-template-columns: 1fr; } }

        /* Trust Icons Strip */
        .trust-strip {
            display: flex; flex-wrap: wrap; gap: 2rem; justify-content: center; align-items: center;
            padding: 2rem 0;
        }
        .trust-item { display: flex; align-items: center; gap: 0.7rem; color: var(--text-secondary); font-weight: 500; font-size: 0.95rem; }
        .trust-item i { font-size: 1.5rem; color: var(--accent-amber); }

        /* Pricing / Comparison */
        .pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
        .pricing-card {
            background: var(--bg-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg);
            padding: 2rem 1.5rem; text-align: left; transition: all var(--transition-smooth);
            box-shadow: var(--shadow-sm); position: relative;
        }
        .pricing-card.featured { border-color: var(--border-gold); box-shadow: var(--shadow-gold); background: var(--bg-card-hover); }
        .pricing-card.featured::before {
            content: 'PHỔ BIẾN NHẤT'; position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
            background: var(--accent-amber); color: #1a1a1a; padding: 0.35rem 1.4rem;
            border-radius: 50px; font-weight: 700; font-size: 0.72rem; letter-spacing: 0.04em;
        }
        .pricing-name { font-size: 1.1rem; font-weight: 700; color: #ffffff; margin-bottom: 0.3rem; }
        .pricing-value { font-size: 2rem; font-weight: 800; color: var(--accent-amber); margin-bottom: 1rem; }
        .pricing-value small { font-size: 0.85rem; font-weight: 400; color: var(--text-muted); }
        .pricing-features { list-style: none; padding: 0; margin-bottom: 1.5rem; }
        .pricing-features li { padding: 0.4rem 0; color: var(--text-secondary); font-size: 0.9rem; display: flex; align-items: center; gap: 0.5rem; }
        .pricing-features li i { color: var(--accent-amber); font-size: 0.8rem; }
        .btn-pricing {
            display: block; text-align: center; padding: 0.7rem; border-radius: 50px; font-weight: 700;
            border: 1px solid var(--border-gold); color: var(--accent-gold-light); transition: all var(--transition-fast);
        }
        .btn-pricing:hover { background: rgba(197,160,89,0.12); border-color: var(--accent-amber); color: var(--accent-amber); }
        .btn-pricing.featured-btn { background: linear-gradient(135deg, var(--accent-amber), var(--accent-gold)); color: #1a1a1a; border: none; }
        .btn-pricing.featured-btn:hover { box-shadow: 0 6px 20px rgba(255,191,0,0.4); }
        @media (max-width: 768px) { .pricing-grid { grid-template-columns: 1fr; } }

        /* CTA Section */
        .cta-section {
            background: var(--bg-secondary); border: 1px solid var(--border-subtle); border-radius: var(--radius-xl);
            padding: 3rem 2rem; text-align: center; margin: 2rem 0;
        }
        .cta-section h2 { font-size: 1.8rem; font-weight: 800; color: #ffffff; margin-bottom: 0.8rem; }
        .cta-section p { color: var(--text-muted); margin-bottom: 1.5rem; font-size: 1rem; }
        .btn-cta-large {
            background: linear-gradient(135deg, var(--accent-amber), var(--accent-gold));
            color: #1a1a1a; font-weight: 700; padding: 0.9rem 2.8rem; border-radius: 50px;
            font-size: 1.1rem; border: none; transition: all var(--transition-smooth);
            box-shadow: 0 6px 22px rgba(255,191,0,0.35); display: inline-block;
        }
        .btn-cta-large:hover { box-shadow: 0 10px 32px rgba(255,191,0,0.5); transform: translateY(-2px); color: #1a1a1a; }

        /* FAQ */
        .faq-list { max-width: 780px; margin: 0 auto; }
        .faq-item { border-bottom: 1px solid var(--border-subtle); padding: 1.3rem 0; }
        .faq-item:last-child { border-bottom: none; }
        .faq-q { font-weight: 700; font-size: 1.05rem; color: #ffffff; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 1rem; transition: color var(--transition-fast); }
        .faq-q:hover { color: var(--accent-gold-light); }
        .faq-q i { font-size: 0.85rem; color: var(--accent-amber); transition: transform var(--transition-fast); }
        .faq-a { color: var(--text-muted); font-size: 0.93rem; line-height: 1.7; margin-top: 0.7rem; display: none; }
        .faq-item.open .faq-a { display: block; }
        .faq-item.open .faq-q i { transform: rotate(180deg); }

        /* Floating Bar */
        .floating-bar {
            position: fixed; bottom: 0; left: 0; right: 0; z-index: 1040;
            background: rgba(17,24,39,0.96); backdrop-filter: blur(14px);
            border-top: 1px solid var(--border-subtle); padding: 0.8rem 1.25rem;
            display: flex; align-items: center; justify-content: center; gap: 1.5rem; flex-wrap: wrap;
        }
        .floating-bar-text { color: var(--text-primary); font-weight: 600; font-size: 0.95rem; }
        .floating-bar-text span { color: var(--accent-amber); }
        .btn-floating {
            background: linear-gradient(135deg, var(--accent-amber), var(--accent-gold));
            color: #1a1a1a; font-weight: 700; padding: 0.6rem 1.8rem; border-radius: 50px;
            font-size: 0.9rem; border: none; transition: all var(--transition-fast);
            box-shadow: 0 3px 14px rgba(255,191,0,0.3);
        }
        .btn-floating:hover { box-shadow: 0 5px 20px rgba(255,191,0,0.45); color: #1a1a1a; }

        /* FAB */
        .fab-floating {
            position: fixed; left: 1rem; bottom: 6rem; z-index: 1055;
            width: 52px; height: 52px; border-radius: 50px;
            background: rgba(0,0,0,0.65); backdrop-filter: blur(10px);
            border: 2px solid transparent;
            border-image: linear-gradient(135deg, #00F0FF, #CCFF00) 1;
            display: flex; align-items: center; justify-content: center;
            color: #00F0FF; font-size: 1.3rem; cursor: pointer;
            transition: all var(--transition-smooth);
            box-shadow: 0 0 18px rgba(0,240,255,0.45);
            opacity: 0.7;
        }
        .fab-floating:hover { opacity: 1; box-shadow: 0 0 28px rgba(0,240,255,0.7); transform: scale(1.1); }
        .fab-floating:active { transform: scale(0.93); }
        .fab-notification {
            position: absolute; top: 4px; right: 4px; width: 10px; height: 10px;
            border-radius: 50%; background: #FF007F; animation: blink-notif 1.4s infinite;
        }
        @keyframes blink-notif { 0%, 100% { opacity: 1; } 50% { opacity: 0.25; } }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary); border-top: 1px solid var(--border-subtle);
            padding: 3rem 1.25rem 2rem; color: var(--text-muted); font-size: 0.9rem;
        }
        .footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; max-width: 1200px; margin: 0 auto 2rem; }
        .footer-col h5 { color: #ffffff; font-weight: 700; font-size: 1rem; margin-bottom: 1rem; }
        .footer-col a { display: block; color: var(--text-muted); padding: 0.25rem 0; font-size: 0.88rem; transition: color var(--transition-fast); }
        .footer-col a:hover { color: var(--accent-gold-light); }
        .footer-bottom { text-align: center; padding-top: 1.5rem; border-top: 1px solid var(--border-subtle); color: var(--text-muted); font-size: 0.8rem; }
        .footer-badges { display: flex; gap: 0.8rem; flex-wrap: wrap; margin-top: 0.8rem; }
        .footer-badge { background: rgba(255,255,255,0.04); padding: 0.35rem 0.8rem; border-radius: var(--radius-sm); font-size: 0.75rem; color: var(--text-muted); border: 1px solid var(--border-subtle); }
        @media (max-width: 768px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }

        /* Utility */
        .text-gold { color: var(--accent-gold-light); }
        .text-amber { color: var(--accent-amber); }
        .mt-0 { margin-top: 0; }

/* roulang page: category1 */
:root {
            --primary: #1E3A8A;
            --primary-light: #2563EB;
            --primary-dark: #1E2B5E;
            --accent: #F59E0B;
            --accent-hover: #D97706;
            --text-main: #1E293B;
            --text-muted: #64748B;
            --text-light: #FFFFFF;
            --bg-page: #F8FAFC;
            --bg-white: #FFFFFF;
            --card-bg: #FFFFFF;
            --border-light: #E2E8F0;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
            --shadow-md: 0 6px 18px rgba(0,0,0,0.07);
            --shadow-lg: 0 12px 28px rgba(0,0,0,0.09);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --font-heading: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-body: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --transition: all 0.2s ease;
        }
        * {
            box-sizing: border-box;
        }
        body {
            font-family: var(--font-body);
            background: var(--bg-page);
            color: var(--text-main);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }
        h1, h2, h3, h4, h5 {
            font-family: var(--font-heading);
            font-weight: 700;
            color: var(--primary-dark);
            line-height: 1.3;
            margin-top: 0;
        }
        a {
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container-custom {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        /* Navigation - same as shared header */
        .site-header {
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-light);
        }
        .navbar-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            flex-wrap: wrap;
        }
        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--primary-dark);
        }
        .navbar-brand-custom i {
            color: var(--accent);
            font-size: 1.5rem;
        }
        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 2rem;
        }
        .nav-link-custom {
            font-weight: 600;
            color: var(--text-main);
            padding: 0.4rem 0;
            border-bottom: 2px solid transparent;
            transition: var(--transition);
            font-size: 0.95rem;
        }
        .nav-link-custom:hover {
            color: var(--primary-light);
            border-bottom-color: var(--primary-light);
        }
        .nav-link-custom.active {
            color: var(--primary);
            border-bottom-color: var(--accent);
        }
        .desktop-only {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn-nav-login {
            background: transparent;
            border: 1px solid var(--primary-light);
            color: var(--primary-light);
            padding: 8px 18px;
            border-radius: 8px;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
            font-size: 0.9rem;
        }
        .btn-nav-login:hover {
            background: rgba(37,99,235,0.05);
        }
        .btn-nav-signup {
            background: var(--accent);
            color: #fff;
            border: none;
            padding: 9px 22px;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            font-size: 0.9rem;
            box-shadow: 0 2px 8px rgba(245,158,11,0.3);
        }
        .btn-nav-signup:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
        }
        .mobile-menu-toggle {
            display: none;
            background: transparent;
            border: none;
            font-size: 1.5rem;
            color: var(--primary-dark);
            cursor: pointer;
        }
        .mobile-nav-panel {
            display: none;
            flex-direction: column;
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            padding: 1rem 2rem 1.5rem;
            gap: 1rem;
        }
        .mobile-nav-panel .nav-auth-group {
            display: flex;
            gap: 1rem;
            margin-top: 0.5rem;
        }
        @media (max-width: 992px) {
            .desktop-only {
                display: none;
            }
            .nav-links-desktop {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .mobile-nav-panel.active {
                display: flex;
            }
        }
        /* Bento Hero */
        .hero-bento {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            align-items: stretch;
            margin: 40px 0 60px;
        }
        .bento-main {
            background: linear-gradient(135deg, var(--primary-dark) 0%, #1E3A8A 100%);
            border-radius: var(--radius-lg);
            padding: 50px 40px;
            color: var(--text-light);
            display: flex;
            flex-direction: column;
            justify-content: center;
            position: relative;
            overflow: hidden;
            min-height: 350px;
        }
        .bento-main::after {
            content: "";
            position: absolute;
            width: 200px;
            height: 200px;
            background: rgba(255,255,255,0.03);
            border-radius: 50%;
            top: -60px;
            right: -60px;
        }
        .bento-main h1 {
            font-size: 2.4rem;
            color: #FFF;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }
        .bento-main p {
            font-size: 1.1rem;
            opacity: 0.9;
            max-width: 480px;
            position: relative;
            z-index: 1;
        }
        .bento-side {
            display: grid;
            grid-template-rows: 1fr 1fr;
            gap: 24px;
        }
        .bento-mini {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-md);
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: var(--transition);
        }
        .bento-mini:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }
        .bento-mini i {
            font-size: 2rem;
            color: var(--accent);
            background: rgba(245,158,11,0.1);
            padding: 12px;
            border-radius: 12px;
        }
        .bento-mini h4 {
            font-size: 1.1rem;
            margin-bottom: 6px;
            color: var(--primary-dark);
        }
        .bento-mini p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
        }
        .cta-block {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 24px 30px;
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 20px;
        }
        .cta-block span {
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--primary-dark);
        }
        .btn-primary-accent {
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            padding: 12px 32px;
            border-radius: 30px;
            border: none;
            transition: var(--transition);
            cursor: pointer;
            font-size: 1rem;
            box-shadow: 0 4px 12px rgba(245,158,11,0.3);
        }
        .btn-primary-accent:hover {
            background: var(--accent-hover);
            transform: scale(1.02);
        }
        @media (max-width: 768px) {
            .hero-bento {
                grid-template-columns: 1fr;
            }
            .bento-main {
                padding: 40px 24px;
            }
            .bento-main h1 {
                font-size: 1.8rem;
            }
        }
        /* Section styling */
        .section {
            margin: 60px 0;
        }
        .section-title {
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 24px;
            position: relative;
        }
        .section-title::after {
            content: "";
            display: block;
            width: 60px;
            height: 3px;
            background: var(--accent);
            margin-top: 8px;
            border-radius: 2px;
        }
        /* Timeline */
        .timeline {
            list-style: none;
            padding: 0;
            position: relative;
            margin: 2rem 0;
        }
        .timeline::before {
            content: "";
            position: absolute;
            left: 30px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--border-light);
            border-radius: 2px;
        }
        .timeline-item {
            display: flex;
            gap: 30px;
            margin-bottom: 30px;
            position: relative;
        }
        .timeline-marker {
            min-width: 40px;
            height: 40px;
            background: var(--primary);
            color: #FFF;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            z-index: 1;
            box-shadow: 0 0 0 5px var(--bg-page);
        }
        .timeline-content {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            flex: 1;
        }
        .timeline-content h4 {
            color: var(--primary-dark);
            font-size: 1.2rem;
            margin-bottom: 6px;
        }
        /* Cards for experts / games */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            box-shadow: var(--shadow-md);
            text-align: center;
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .feature-card img {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            object-fit: cover;
            margin: 0 auto 16px;
            border: 3px solid var(--border-light);
        }
        .feature-card h5 {
            color: var(--primary-dark);
            font-weight: 700;
        }
        .feature-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        /* Pricing table */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 24px;
            margin: 2rem 0;
        }
        .pricing-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            box-shadow: var(--shadow-md);
            border: 2px solid var(--border-light);
            transition: var(--transition);
            text-align: center;
        }
        .pricing-card.popular {
            border-color: var(--accent);
            box-shadow: 0 10px 24px rgba(245,158,11,0.12);
        }
        .pricing-card h4 {
            font-size: 1.4rem;
            color: var(--primary-dark);
        }
        .pricing-card .price {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            margin: 12px 0;
        }
        .pricing-card ul {
            list-style: none;
            padding: 0;
            text-align: left;
            margin: 20px 0;
        }
        .pricing-card ul li {
            padding: 6px 0;
            border-bottom: 1px dashed var(--border-light);
            font-size: 0.95rem;
        }
        .pricing-card ul li i {
            color: var(--accent);
            margin-right: 6px;
        }
        .btn-outline-primary {
            border: 2px solid var(--primary-light);
            color: var(--primary-light);
            background: transparent;
            font-weight: 700;
            padding: 10px 24px;
            border-radius: 30px;
            transition: var(--transition);
        }
        .btn-outline-primary:hover {
            background: var(--primary-light);
            color: #fff;
        }
        /* Registration form */
        .reg-form {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-lg);
            max-width: 700px;
            margin: 0 auto;
        }
        .reg-form label {
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 6px;
            display: block;
        }
        .reg-form input, .reg-form select {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-light);
            border-radius: 10px;
            margin-bottom: 18px;
            transition: var(--transition);
        }
        .reg-form input:focus {
            border-color: var(--primary-light);
            outline: none;
            box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
        }
        /* Footer - identical to shared */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255,255,255,0.85);
            padding: 50px 0 20px;
            margin-top: 80px;
            border-top: 4px solid var(--accent);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .footer-col h5 {
            color: #FFF;
            font-size: 1.1rem;
            margin-bottom: 16px;
            font-weight: 700;
        }
        .footer-col a {
            color: rgba(255,255,255,0.7);
            display: block;
            margin-bottom: 10px;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 5px;
        }
        .footer-badges {
            display: flex;
            gap: 8px;
            margin-top: 16px;
        }
        .footer-badge {
            background: rgba(255,255,255,0.1);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            color: #FFF;
        }
        .footer-bottom {
            text-align: center;
            border-top: 1px solid rgba(255,255,255,0.1);
            margin-top: 30px;
            padding: 20px 20px 0;
            font-size: 0.8rem;
            opacity: 0.7;
        }

/* roulang page: article */
:root {
            --brand-deep-green: #0A2E1C;
            --brand-forest: #123E25;
            --brand-gold: #C5A059;
            --brand-gold-bright: #FFD700;
            --brand-amber: #FFBF00;
            --brand-red: #D32F2F;
            --text-primary: #1a1a2e;
            --text-body: #2d3748;
            --text-muted: #6b7280;
            --text-light: #9ca3af;
            --bg-page: #f4f6f9;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-nav: #0A2E1C;
            --bg-footer: #0C2417;
            --border-light: #e5e7eb;
            --border-gold: #C5A059;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.04);
            --shadow-lg: 0 12px 32px rgba(0,0,0,0.10), 0 4px 12px rgba(0,0,0,0.05);
            --shadow-gold: 0 4px 20px rgba(197,160,89,0.25);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --font-heading: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            --font-body: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.28s ease;
            --container-max: 1140px;
            --container-narrow: 820px;
        }

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

        html { scroll-behavior: smooth; }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-page);
            color: var(--text-body);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a { text-decoration: none; color: inherit; transition: color var(--transition-fast); }
        img { max-width: 100%; height: auto; display: block; }
        button { cursor: pointer; font-family: inherit; border: none; outline: none; }
        button:focus-visible, a:focus-visible { outline: 2px solid var(--brand-gold-bright); outline-offset: 2px; border-radius: 4px; }

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

        .container-narrow {
            max-width: var(--container-narrow);
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ── Header & Navigation ── */
        .site-header {
            background: var(--bg-nav);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid rgba(197,160,89,0.25);
            box-shadow: 0 2px 12px rgba(0,0,0,0.25);
        }

        .navbar-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 62px;
            gap: 20px;
        }

        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.18rem;
            color: var(--brand-gold-bright);
            white-space: nowrap;
            transition: color var(--transition-fast);
            letter-spacing: -0.01em;
        }
        .navbar-brand-custom i { color: var(--brand-gold); font-size: 1.25rem; }
        .navbar-brand-custom:hover { color: #FFE566; }

        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .nav-link-custom {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 24px;
            font-size: 0.92rem;
            font-weight: 500;
            color: #d1f2eb;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-link-custom:hover {
            background: rgba(255,255,255,0.10);
            color: #ffffff;
        }
        .nav-link-custom.active {
            background: rgba(197,160,89,0.20);
            color: var(--brand-gold-bright);
            font-weight: 600;
        }

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

        .btn-nav-login {
            background: transparent;
            border: 1.5px solid rgba(255,255,255,0.40);
            color: #ffffff;
            padding: 7px 18px;
            border-radius: 22px;
            font-size: 0.88rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-nav-login:hover {
            border-color: #ffffff;
            background: rgba(255,255,255,0.08);
        }

        .btn-nav-signup {
            background: linear-gradient(135deg, var(--brand-gold-bright), var(--brand-amber));
            color: #1a1a2e;
            padding: 8px 20px;
            border-radius: 22px;
            font-size: 0.88rem;
            font-weight: 700;
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 2px 10px rgba(255,215,0,0.25);
        }
        .btn-nav-signup:hover {
            box-shadow: 0 4px 18px rgba(255,215,0,0.40);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: #ffffff;
            font-size: 1.5rem;
            padding: 6px;
            border-radius: 6px;
            transition: background var(--transition-fast);
        }
        .mobile-menu-toggle:hover { background: rgba(255,255,255,0.10); }

        .mobile-nav-panel {
            display: none;
            background: #0C2417;
            border-top: 1px solid rgba(197,160,89,0.20);
            padding: 16px 20px;
            flex-direction: column;
            gap: 6px;
        }
        .mobile-nav-panel .nav-link-custom { display: block; border-radius: 8px; padding: 10px 16px; }
        .mobile-nav-panel .nav-auth-group { flex-direction: column; gap: 8px; margin-top: 8px; }
        .mobile-nav-panel .btn-nav-login,
        .mobile-nav-panel .btn-nav-signup { width: 100%; text-align: center; border-radius: 8px; padding: 10px; }

        @media (max-width: 992px) {
            .nav-links-desktop { display: none; }
            .nav-auth-group.desktop-only { display: none; }
            .mobile-menu-toggle { display: flex; align-items: center; justify-content: center; }
            .mobile-nav-panel.show { display: flex; }
            .navbar-custom { height: 56px; }
            .navbar-brand-custom { font-size: 1.05rem; }
        }

        @media (min-width: 993px) {
            .mobile-nav-panel { display: none !important; }
        }

        /* ── Article Banner (矮横幅) ── */
        .article-banner {
            position: relative;
            min-height: 280px;
            display: flex;
            align-items: flex-end;
            padding: 48px 0 32px;
            background: linear-gradient(135deg, #0A2E1C 0%, #123E25 40%, #0B1F14 100%);
            overflow: hidden;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            opacity: 0.18;
            z-index: 0;
        }
        .article-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(10,46,28,0.92) 0%, rgba(10,46,28,0.55) 60%, rgba(10,46,28,0.35) 100%);
            z-index: 1;
        }
        .article-banner .banner-content {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        /* ── Breadcrumb ── */
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            list-style: none;
            padding: 0;
            margin: 0 0 14px 0;
            font-size: 0.88rem;
            color: rgba(255,255,255,0.75);
        }
        .breadcrumb-custom li { display: inline-flex; align-items: center; gap: 6px; }
        .breadcrumb-custom a {
            color: rgba(255,255,255,0.85);
            transition: color var(--transition-fast);
            font-weight: 500;
        }
        .breadcrumb-custom a:hover { color: var(--brand-gold-bright); }
        .breadcrumb-custom .sep { color: rgba(255,255,255,0.40); font-size: 0.7rem; }
        .breadcrumb-custom .current { color: var(--brand-gold-bright); font-weight: 600; }

        /* ── Article Main Layout ── */
        .article-main {
            padding: 0 0 60px;
            margin-top: -40px;
            position: relative;
            z-index: 3;
        }

        .article-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            padding: 40px 44px;
            border: 1px solid var(--border-light);
        }

        .article-card h1.article-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.3;
            margin-bottom: 10px;
            letter-spacing: -0.02em;
        }

        .article-meta-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 14px;
            margin-bottom: 22px;
            padding-bottom: 18px;
            border-bottom: 1px solid var(--border-light);
        }

        .article-category-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: rgba(10,46,28,0.08);
            color: var(--brand-deep-green);
            font-weight: 600;
            font-size: 0.82rem;
            padding: 5px 14px;
            border-radius: 20px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .article-category-badge:hover {
            background: rgba(10,46,28,0.16);
            color: #062013;
        }
        .article-category-badge i { font-size: 0.7rem; color: var(--brand-gold); }

        .article-date {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .article-date i { color: var(--text-light); font-size: 0.75rem; }

        /* ── Pull Quote ── */
        .pull-quote {
            background: linear-gradient(135deg, #f9fafb 0%, #f0f4f8 100%);
            border-left: 4px solid var(--brand-gold);
            padding: 20px 26px;
            margin: 0 0 28px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            font-size: 1.12rem;
            font-style: italic;
            color: #374151;
            line-height: 1.7;
            position: relative;
        }
        .pull-quote::before {
            content: '\201C';
            position: absolute;
            top: -10px;
            left: 14px;
            font-size: 3.5rem;
            color: var(--brand-gold);
            opacity: 0.35;
            font-family: Georgia, serif;
            line-height: 1;
        }
        .pull-quote p { margin: 0; padding-left: 8px; }

        /* ── Article Body ── */
        .article-body {
            font-size: 1.04rem;
            line-height: 1.78;
            color: var(--text-body);
        }
        .article-body h2 {
            font-family: var(--font-heading);
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 32px 0 14px;
            padding-bottom: 8px;
            border-bottom: 2px solid rgba(197,160,89,0.30);
            letter-spacing: -0.01em;
        }
        .article-body h3 {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 26px 0 10px;
        }
        .article-body p { margin-bottom: 16px; }
        .article-body ul, .article-body ol {
            margin: 12px 0 20px;
            padding-left: 24px;
        }
        .article-body li { margin-bottom: 8px; }
        .article-body img {
            border-radius: var(--radius-md);
            margin: 20px 0;
            box-shadow: var(--shadow-md);
            max-width: 100%;
            height: auto;
        }
        .article-body blockquote {
            background: #f8fafb;
            border-left: 3px solid var(--brand-gold);
            padding: 16px 22px;
            margin: 20px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: #4b5563;
        }
        .article-body a {
            color: var(--brand-deep-green);
            font-weight: 500;
            text-decoration: underline;
            text-decoration-color: rgba(197,160,89,0.50);
            text-underline-offset: 3px;
            transition: all var(--transition-fast);
        }
        .article-body a:hover {
            color: #062013;
            text-decoration-color: var(--brand-gold);
        }
        .article-body strong { color: var(--text-primary); font-weight: 700; }
        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            font-size: 0.95rem;
        }
        .article-body table th,
        .article-body table td {
            border: 1px solid var(--border-light);
            padding: 10px 14px;
            text-align: left;
        }
        .article-body table th {
            background: rgba(10,46,28,0.07);
            font-weight: 700;
            color: var(--text-primary);
        }

        /* ── Not Found State ── */
        .not-found-section {
            text-align: center;
            padding: 80px 20px;
        }
        .not-found-section .icon-404 {
            font-size: 4rem;
            color: var(--text-light);
            margin-bottom: 16px;
            opacity: 0.5;
        }
        .not-found-section h2 {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .not-found-section p {
            color: var(--text-muted);
            margin-bottom: 22px;
            font-size: 1rem;
        }

        /* ── CTA Section ── */
        .cta-section {
            padding: 48px 0 56px;
        }
        .cta-card {
            background: linear-gradient(135deg, #0A2E1C 0%, #123E25 50%, #0B1F14 100%);
            border-radius: var(--radius-xl);
            padding: 44px 40px;
            text-align: left;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(197,160,89,0.30);
            box-shadow: var(--shadow-gold);
        }
        .cta-card::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(255,215,0,0.12) 0%, transparent 70%);
            border-radius: 50%;
            z-index: 0;
        }
        .cta-card .cta-inner {
            position: relative;
            z-index: 2;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .cta-card h3 {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 6px;
        }
        .cta-card p {
            color: rgba(255,255,255,0.80);
            margin: 0;
            font-size: 0.98rem;
            max-width: 520px;
            line-height: 1.55;
        }
        .btn-cta-gold {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--brand-gold-bright), var(--brand-amber));
            color: #1a1a2e;
            font-weight: 700;
            font-size: 0.98rem;
            padding: 13px 28px;
            border-radius: 28px;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 16px rgba(255,215,0,0.30);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .btn-cta-gold:hover {
            box-shadow: 0 6px 24px rgba(255,215,0,0.45);
            transform: translateY(-2px);
            color: #1a1a2e;
        }
        .btn-cta-gold i { font-size: 0.85rem; }

        /* ── Related Articles ── */
        .related-section {
            padding: 0 0 50px;
        }
        .related-section .section-label {
            font-family: var(--font-heading);
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid rgba(197,160,89,0.25);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .related-section .section-label i { color: var(--brand-gold); font-size: 1rem; }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .related-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: rgba(197,160,89,0.35);
        }
        .related-card-img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            display: block;
        }
        .related-card-body {
            padding: 16px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .related-card-body h4 {
            font-family: var(--font-heading);
            font-size: 0.98rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
            margin: 0;
        }
        .related-card-body .related-meta {
            font-size: 0.78rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .related-card-body .related-meta i { font-size: 0.65rem; }

        /* ── Footer ── */
        .site-footer {
            background: var(--bg-footer);
            color: #d1f2eb;
            padding: 48px 0 0;
            border-top: 2px solid rgba(197,160,89,0.30);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-col h5 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 700;
            color: var(--brand-gold-bright);
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }
        .footer-col a {
            display: block;
            color: #a0c4b8;
            font-size: 0.88rem;
            padding: 3px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover { color: #ffffff; }
        .footer-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 12px;
        }
        .footer-badge {
            display: inline-flex;
            align-items: center;
            background: rgba(255,255,255,0.08);
            border: 1px solid rgba(197,160,89,0.40);
            color: var(--brand-gold-bright);
            padding: 5px 12px;
            border-radius: 16px;
            font-size: 0.76rem;
            font-weight: 600;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.10);
            padding: 18px 0;
            text-align: center;
            font-size: 0.80rem;
            color: rgba(255,255,255,0.50);
            line-height: 1.6;
        }

        /* ── FAB ── */
        .fab-royal {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 54px;
            height: 54px;
            border-radius: 50%;
            background: linear-gradient(145deg, #1a0a0a, #0d0505);
            border: 2px solid var(--brand-gold-bright);
            box-shadow: 0 4px 20px rgba(255,215,0,0.30), inset 0 0 6px rgba(255,215,0,0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition-smooth);
            animation: fab-breathe 3s ease-in-out infinite;
            opacity: 0.70;
        }
        .fab-royal:hover {
            opacity: 1;
            transform: scale(1.10);
            box-shadow: 0 6px 28px rgba(255,215,0,0.45), inset 0 0 10px rgba(255,215,0,0.22);
        }
        .fab-royal:active {
            transform: scale(0.95) translateY(2px);
            box-shadow: 0 2px 10px rgba(255,215,0,0.25);
        }
        .fab-royal i {
            color: var(--brand-gold-bright);
            font-size: 1.3rem;
            transition: transform var(--transition-smooth);
        }
        .fab-royal:hover i {
            transform: rotate(360deg);
        }
        .fab-notification {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 12px;
            height: 12px;
            background: var(--brand-red);
            border-radius: 50%;
            border: 2px solid #0d0505;
            animation: fab-blink 1.4s ease-in-out infinite;
        }

        @keyframes fab-breathe {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-5px); }
        }
        @keyframes fab-blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.35; }
        }

        /* ── Responsive ── */
        @media (max-width: 1024px) {
            .article-card { padding: 30px 24px; }
            .article-card h1.article-title { font-size: 1.6rem; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
        }

        @media (max-width: 768px) {
            .article-banner { min-height: 200px; padding: 36px 0 24px; }
            .article-card { padding: 22px 18px; border-radius: var(--radius-md); }
            .article-card h1.article-title { font-size: 1.35rem; }
            .article-body { font-size: 0.96rem; line-height: 1.7; }
            .article-body h2 { font-size: 1.2rem; }
            .pull-quote { font-size: 0.98rem; padding: 14px 18px; }
            .related-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
            .related-card-img { height: 130px; }
            .cta-card { padding: 28px 22px; }
            .cta-card .cta-inner { flex-direction: column; text-align: left; align-items: flex-start; }
            .cta-card h3 { font-size: 1.25rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 20px; }
            .fab-royal { left: 12px; bottom: 80px; width: 46px; height: 46px; }
            .fab-royal i { font-size: 1.1rem; }
            .breadcrumb-custom { font-size: 0.80rem; }
        }

        @media (max-width: 520px) {
            .article-card { padding: 18px 14px; }
            .article-card h1.article-title { font-size: 1.2rem; }
            .article-meta-row { gap: 8px; padding-bottom: 12px; margin-bottom: 14px; }
            .related-grid { grid-template-columns: 1fr; }
            .related-card-img { height: 170px; }
            .article-banner { min-height: 160px; padding: 28px 0 18px; }
            .container-custom { padding-left: 14px; padding-right: 14px; }
            .container-narrow { padding-left: 14px; padding-right: 14px; }
            .pull-quote { font-size: 0.90rem; }
            .cta-card { padding: 22px 16px; border-radius: var(--radius-lg); }
            .btn-cta-gold { width: 100%; justify-content: center; text-align: center; }
        }

/* roulang page: category2 */
:root {
            --primary: #1a56db;
            --primary-dark: #1e40af;
            --primary-light: #3b82f6;
            --primary-bg: #eff6ff;
            --primary-border: #bfdbfe;
            --accent: #c5a059;
            --accent-light: #f0e6cf;
            --accent-dark: #a6843c;
            --bg: #f8fafc;
            --surface: #ffffff;
            --surface-alt: #f1f5f9;
            --text: #1e293b;
            --text-secondary: #475569;
            --text-muted: #64748b;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow: 0 4px 16px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.04);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.10), 0 4px 10px rgba(0,0,0,0.05);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.12), 0 6px 16px rgba(0,0,0,0.06);
            --shadow-xl: 0 24px 64px rgba(0,0,0,0.16), 0 8px 24px rgba(0,0,0,0.08);
            --font-heading: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            --font-body: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.15s ease;
            --transition: 0.25s ease;
            --transition-slow: 0.35s ease;
            --navbar-height: 72px;
        }

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

        html { scroll-behavior: smooth; font-size: 16px; }

        body {
            font-family: var(--font-body);
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            padding-top: var(--navbar-height);
        }

        img { max-width: 100%; height: auto; display: block; }
        a { text-decoration: none; color: inherit; transition: color var(--transition-fast); }
        button { cursor: pointer; font-family: inherit; border: none; outline: none; }
        ul, ol { list-style: none; padding: 0; margin: 0; }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container-custom { padding: 0 16px; }
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: var(--surface);
            border-bottom: 1px solid var(--border);
            height: var(--navbar-height);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled { box-shadow: var(--shadow-md); }

        .navbar-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--navbar-height);
            gap: 24px;
        }

        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--primary-dark);
            white-space: nowrap;
            transition: opacity var(--transition-fast);
        }
        .navbar-brand-custom i {
            color: var(--accent);
            font-size: 1.35rem;
        }
        .navbar-brand-custom:hover { opacity: 0.85; color: var(--primary-dark); }

        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-link-custom {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 8px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-link-custom:hover { color: var(--primary); background: var(--primary-bg); }
        .nav-link-custom.active { color: var(--primary); background: var(--primary-bg); font-weight: 600; }

        .nav-auth-group { display: flex; align-items: center; gap: 10px; }

        .btn-nav-login {
            padding: 8px 18px;
            border-radius: 8px;
            font-weight: 500;
            font-size: 0.9rem;
            background: transparent;
            color: var(--text-secondary);
            border: 1.5px solid var(--border);
            transition: all var(--transition-fast);
        }
        .btn-nav-login:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-bg); }

        .btn-nav-signup {
            padding: 8px 20px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.9rem;
            background: var(--primary);
            color: #ffffff;
            border: 1.5px solid var(--primary);
            transition: all var(--transition-fast);
            box-shadow: 0 2px 8px rgba(26,86,219,0.25);
        }
        .btn-nav-signup:hover { background: var(--primary-dark); border-color: var(--primary-dark); box-shadow: 0 4px 14px rgba(26,86,219,0.35); transform: translateY(-1px); }
        .btn-nav-signup:active { transform: translateY(0); box-shadow: 0 2px 6px rgba(26,86,219,0.2); }

        .mobile-menu-toggle {
            display: none;
            background: transparent;
            font-size: 1.5rem;
            color: var(--text);
            padding: 8px;
            border-radius: 8px;
            transition: background var(--transition-fast);
        }
        .mobile-menu-toggle:hover { background: var(--surface-alt); }

        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: var(--navbar-height);
            left: 0;
            right: 0;
            background: var(--surface);
            border-bottom: 1px solid var(--border);
            padding: 16px 24px;
            flex-direction: column;
            gap: 6px;
            z-index: 1049;
            box-shadow: var(--shadow-md);
            animation: slideDown 0.25s ease;
        }
        .mobile-nav-panel.open { display: flex; }
        @keyframes slideDown {
            from { opacity: 0; transform: translateY(-10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .mobile-nav-panel .nav-link-custom { display: block; padding: 12px 16px; font-size: 1rem; }
        .mobile-nav-panel .nav-auth-group { display: flex; flex-direction: column; gap: 8px; margin-top: 8px; padding-top: 12px; border-top: 1px solid var(--border); }
        .mobile-nav-panel .nav-auth-group .btn-nav-login,
        .mobile-nav-panel .nav-auth-group .btn-nav-signup { width: 100%; text-align: center; padding: 10px; }

        @media (max-width: 992px) {
            .nav-links-desktop { display: none; }
            .desktop-only { display: none; }
            .mobile-menu-toggle { display: block; }
        }
        @media (min-width: 993px) {
            .mobile-nav-panel { display: none !important; }
        }

        /* ============ HERO ============ */
        .hero-section {
            position: relative;
            background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 30%, #1a3c6e 60%, #0f172a 100%);
            padding: 80px 0 70px;
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            opacity: 0.22;
            z-index: 0;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(26,86,219,0.18) 0%, transparent 70%);
            z-index: 1;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 850px;
            margin: 0 auto;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(255,255,255,0.12);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255,255,255,0.2);
            color: #e2e8f0;
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 20px;
            letter-spacing: 0.3px;
        }
        .hero-badge i { color: var(--accent); margin-right: 6px; }
        .hero-title {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 2.8rem;
            color: #ffffff;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }
        .hero-title span { color: #fbbf24; }
        .hero-subtitle {
            font-size: 1.1rem;
            color: #cbd5e1;
            max-width: 620px;
            margin: 0 auto 28px;
            line-height: 1.6;
        }
        .hero-search-wrap {
            max-width: 600px;
            margin: 0 auto 28px;
            position: relative;
        }
        .hero-search-wrap input {
            width: 100%;
            padding: 15px 140px 15px 22px;
            border-radius: 50px;
            border: 2px solid rgba(255,255,255,0.2);
            background: rgba(255,255,255,0.08);
            backdrop-filter: blur(10px);
            color: #ffffff;
            font-size: 1rem;
            font-family: var(--font-body);
            outline: none;
            transition: all var(--transition);
        }
        .hero-search-wrap input::placeholder { color: #94a3b8; }
        .hero-search-wrap input:focus {
            border-color: rgba(255,255,255,0.5);
            background: rgba(255,255,255,0.14);
            box-shadow: 0 0 0 6px rgba(26,86,219,0.2);
        }
        .hero-search-wrap .btn-search-hero {
            position: absolute;
            right: 6px;
            top: 6px;
            bottom: 6px;
            padding: 0 26px;
            border-radius: 50px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: none;
        }
        .hero-search-wrap .btn-search-hero:hover { background: var(--primary-dark); }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 50px;
            background: rgba(255,255,255,0.1);
            border: 1px solid rgba(255,255,255,0.18);
            color: #e2e8f0;
            font-size: 0.875rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            cursor: pointer;
            backdrop-filter: blur(5px);
        }
        .hero-tag:hover {
            background: rgba(255,255,255,0.2);
            border-color: rgba(255,255,255,0.4);
            color: #fff;
            transform: translateY(-2px);
        }
        .hero-tag i { color: #fbbf24; font-size: 0.75rem; }

        @media (max-width: 768px) {
            .hero-section { padding: 50px 0 40px; min-height: auto; }
            .hero-title { font-size: 1.9rem; }
            .hero-subtitle { font-size: 0.95rem; }
            .hero-search-wrap input { padding: 13px 120px 13px 16px; font-size: 0.9rem; }
            .hero-search-wrap .btn-search-hero { padding: 0 18px; font-size: 0.85rem; right: 4px; top: 4px; bottom: 4px; }
            .hero-tag { padding: 6px 14px; font-size: 0.8rem; }
        }

        /* ============ SECTION COMMON ============ */
        .section { padding: 64px 0; }
        .section-sm { padding: 40px 0; }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.2px;
            color: var(--primary);
            background: var(--primary-bg);
            padding: 5px 14px;
            border-radius: 6px;
            margin-bottom: 12px;
        }
        .section-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2rem;
            color: var(--text);
            margin-bottom: 12px;
            letter-spacing: -0.2px;
        }
        .section-desc {
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 640px;
            line-height: 1.65;
        }
        .text-center-mobile { text-align: left; }
        @media (max-width: 768px) {
            .section { padding: 40px 0; }
            .section-title { font-size: 1.55rem; }
            .section-desc { font-size: 0.95rem; }
        }

        /* ============ TIMELINE ============ */
        .timeline-section { background: var(--surface); }
        .timeline-wrap { position: relative; padding-left: 40px; margin-top: 32px; }
        .timeline-wrap::before {
            content: '';
            position: absolute;
            left: 18px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: linear-gradient(to bottom, var(--primary), var(--primary-light), var(--accent));
            border-radius: 3px;
        }
        .timeline-item { position: relative; margin-bottom: 36px; padding-left: 32px; }
        .timeline-item:last-child { margin-bottom: 0; }
        .timeline-dot {
            position: absolute;
            left: -26px;
            top: 4px;
            width: 15px;
            height: 15px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid var(--surface);
            box-shadow: 0 0 0 4px var(--primary-border);
            z-index: 2;
        }
        .timeline-item:nth-child(even) .timeline-dot { background: var(--accent); box-shadow: 0 0 0 4px var(--accent-light); }
        .timeline-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .timeline-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); border-color: var(--primary-border); }
        .timeline-step {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--primary);
            background: var(--primary-bg);
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }
        .timeline-card h4 { font-weight: 700; font-size: 1.15rem; color: var(--text); margin-bottom: 6px; }
        .timeline-card p { color: var(--text-muted); font-size: 0.95rem; line-height: 1.6; margin: 0; }

        @media (max-width: 768px) {
            .timeline-wrap { padding-left: 28px; }
            .timeline-wrap::before { left: 12px; }
            .timeline-item { padding-left: 24px; margin-bottom: 24px; }
            .timeline-dot { left: -20px; width: 12px; height: 12px; }
            .timeline-card { padding: 18px 16px; }
        }

        /* ============ HIGHLIGHTS GRID ============ */
        .highlights-section { background: var(--bg); }
        .highlight-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .highlight-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--primary-border);
        }
        .highlight-card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .highlight-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .highlight-card:hover .highlight-card-img img { transform: scale(1.06); }
        .highlight-card-img .img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15,23,42,0.5) 0%, transparent 50%);
        }
        .highlight-card-body { padding: 20px 22px; flex: 1; display: flex; flex-direction: column; }
        .highlight-card-body .tag-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
        .tag-pill {
            font-size: 0.72rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 20px;
            letter-spacing: 0.3px;
        }
        .tag-pill.primary { background: var(--primary-bg); color: var(--primary); }
        .tag-pill.accent { background: var(--accent-light); color: var(--accent-dark); }
        .highlight-card-body h4 {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .highlight-card-body p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            flex: 1;
            margin-bottom: 14px;
        }
        .highlight-card-body .card-link {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition-fast);
        }
        .highlight-card-body .card-link:hover { gap: 10px; color: var(--primary-dark); }
        .highlight-card-body .card-link i { font-size: 0.75rem; }

        /* ============ COMPARISON TABLE ============ */
        .comparison-section { background: var(--surface); }
        .comparison-table-wrap {
            overflow-x: auto;
            margin-top: 28px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
            background: var(--surface);
        }
        .comparison-table thead th {
            background: var(--primary-bg);
            padding: 18px 20px;
            text-align: center;
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text);
            border-bottom: 2px solid var(--primary-border);
        }
        .comparison-table thead th:first-child { text-align: left; border-radius: var(--radius-lg) 0 0 0; }
        .comparison-table thead th:last-child { border-radius: 0 var(--radius-lg) 0 0; }
        .comparison-table thead th.featured-col {
            background: var(--primary);
            color: #fff;
            position: relative;
        }
        .comparison-table thead th.featured-col::after {
            content: 'Phổ Biến Nhất';
            display: block;
            font-size: 0.68rem;
            font-weight: 500;
            color: #fbbf24;
            margin-top: 4px;
            text-transform: uppercase;
            letter-spacing: 0.8px;
        }
        .comparison-table tbody td {
            padding: 15px 20px;
            text-align: center;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-light);
            vertical-align: middle;
        }
        .comparison-table tbody td:first-child { text-align: left; font-weight: 600; color: var(--text); }
        .comparison-table tbody tr:last-child td { border-bottom: none; }
        .comparison-table tbody tr:hover { background: var(--bg); }
        .check-icon { color: #22c55e; font-size: 1.1rem; }
        .dash-icon { color: #cbd5e1; }
        .star-icon { color: #fbbf24; }

        @media (max-width: 768px) {
            .comparison-table-wrap { border-radius: var(--radius); }
            .comparison-table { min-width: 550px; }
            .comparison-table thead th { padding: 12px 10px; font-size: 0.8rem; }
            .comparison-table tbody td { padding: 10px; font-size: 0.8rem; }
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            background: linear-gradient(135deg, #0f172a 0%, #1a3c6e 50%, #0f172a 100%);
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }
        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }
        .cta-content h3 {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 2rem;
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-content p {
            color: #cbd5e1;
            font-size: 1.05rem;
            margin-bottom: 28px;
            line-height: 1.6;
        }
        .btn-cta-primary {
            display: inline-block;
            padding: 14px 36px;
            border-radius: 50px;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            border: none;
            transition: all var(--transition);
            box-shadow: 0 6px 24px rgba(26,86,219,0.4);
        }
        .btn-cta-primary:hover {
            background: var(--primary-light);
            box-shadow: 0 10px 32px rgba(26,86,219,0.55);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-cta-primary:active { transform: translateY(0); }
        .cta-stats-row {
            display: flex;
            justify-content: center;
            gap: 48px;
            margin-top: 32px;
            flex-wrap: wrap;
        }
        .cta-stat {
            text-align: center;
        }
        .cta-stat .stat-number {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 2rem;
            color: #fbbf24;
        }
        .cta-stat .stat-label { color: #94a3b8; font-size: 0.85rem; margin-top: 2px; }

        @media (max-width: 768px) {
            .cta-section { padding: 40px 0; }
            .cta-content h3 { font-size: 1.5rem; }
            .cta-stats-row { gap: 24px; }
            .cta-stat .stat-number { font-size: 1.5rem; }
        }

        /* ============ FAQ ============ */
        .faq-section { background: var(--bg); }
        .faq-list { max-width: 800px; margin: 28px auto 0; }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .faq-item:hover { box-shadow: var(--shadow); }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            background: transparent;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: color var(--transition-fast);
        }
        .faq-question:hover { color: var(--primary); }
        .faq-question i { transition: transform var(--transition); color: var(--text-muted); font-size: 0.85rem; }
        .faq-item.open .faq-question i { transform: rotate(180deg); color: var(--primary); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }
        .faq-item.open .faq-answer { max-height: 400px; }
        .faq-answer-inner {
            padding: 0 22px 18px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.65;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: #0f172a;
            color: #e2e8f0;
            padding: 48px 0 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-col h5 {
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-col a {
            display: block;
            color: #94a3b8;
            font-size: 0.9rem;
            margin-bottom: 8px;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover { color: #fff; }
        .footer-badges { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
        .footer-badge {
            display: inline-block;
            padding: 5px 12px;
            border-radius: 6px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(255,255,255,0.08);
            border: 1px solid rgba(255,255,255,0.15);
            color: #cbd5e1;
        }
        .footer-bottom {
            max-width: 1200px;
            margin: 28px auto 0;
            padding: 18px 24px 0;
            border-top: 1px solid rgba(255,255,255,0.1);
            text-align: center;
            font-size: 0.82rem;
            color: #64748b;
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
            .footer-col:first-child { grid-column: 1 / -1; }
        }
        @media (max-width: 480px) {
            .footer-grid { grid-template-columns: 1fr; }
        }

        /* ============ FAB ============ */
        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: radial-gradient(circle at 35% 30%, #2a1a0a, #0f0802);
            border: 2.5px solid #c5a059;
            box-shadow: 0 4px 20px rgba(197,160,89,0.3), inset 0 1px 0 rgba(255,215,0,0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition);
            animation: fabFloat 3.5s ease-in-out infinite;
            opacity: 0.75;
            color: #fbbf24;
            font-size: 1.3rem;
        }
        .fab-left:hover {
            opacity: 1;
            transform: scale(1.12);
            box-shadow: 0 8px 32px rgba(197,160,89,0.5), inset 0 1px 0 rgba(255,215,0,0.35);
        }
        .fab-left:active { transform: scale(0.94); }
        .fab-left .fab-notification {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: #dc2626;
            border: 2px solid #0f0802;
            animation: fabBlink 1.8s ease-in-out infinite;
        }
        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        @keyframes fabBlink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.35; }
        }
        @media (max-width: 480px) {
            .fab-left { width: 48px; height: 48px; left: 12px; bottom: 80px; font-size: 1.1rem; }
        }

        /* ============ UTILITY ============ */
        .text-accent { color: var(--accent); }
        .fw-800 { font-weight: 800; }
        .mt-0 { margin-top: 0; }
        .mb-0 { margin-bottom: 0; }
        .gap-3-custom { gap: 1.25rem; }

        .highlight-card-body .btn-outline-sm {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.85rem;
            border: 1.5px solid var(--primary);
            color: var(--primary);
            background: transparent;
            transition: all var(--transition-fast);
        }
        .highlight-card-body .btn-outline-sm:hover {
            background: var(--primary);
            color: #fff;
        }