/* roulang page: index */
:root {
            --bg-primary: #0B3C25;
            --bg-deep: #062315;
            --bg-card: #0F2E1E;
            --accent-gold: #FFCC00;
            --accent-lime: #32CD32;
            --text-primary: #FFFDF0;
            --text-soft: #C5E2D2;
            --text-muted: #A0C4B4;
            --border-soft: rgba(255, 204, 0, 0.25);
            --radius-sm: 12px;
            --radius-md: 20px;
            --radius-lg: 28px;
            --shadow-card: 0 8px 28px rgba(0, 0, 0, 0.25);
            --shadow-gold: 0 4px 20px rgba(255, 204, 0, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            background: var(--bg-primary);
            color: var(--text-primary);
            font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.6;
            margin: 0;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a { color: var(--accent-gold); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent-lime); }
        img { max-width: 100%; height: auto; display: block; }
        .container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
        .section-pad { padding: 72px 0; }
        .section-title { font-size: 2rem; font-weight: 700; margin-bottom: 12px; color: var(--text-primary); letter-spacing: -0.5px; }
        .section-subtitle { font-size: 1.05rem; color: var(--text-soft); max-width: 720px; margin-bottom: 40px; line-height: 1.65; }
        .text-left { text-align: left; }
        .text-center { text-align: center; }
        .text-gradient {
            background: linear-gradient(135deg, #FFCC00 0%, #FFD700 50%, #32CD32 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .divider {
            width: 70px; height: 4px; background: var(--accent-gold); border-radius: 4px;
            margin: 16px 0 28px;
        }
        .divider.center { margin-left: auto; margin-right: auto; }

        /* Navigation */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            background: rgba(6, 35, 21, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-soft);
            transition: var(--transition);
        }
        .site-header .container { display: flex; align-items: center; justify-content: space-between; height: 72px; }
        .logo {
            font-weight: 800; font-size: 1.2rem; color: var(--text-primary);
            display: flex; align-items: center; gap: 10px; letter-spacing: -0.3px;
        }
        .logo .logo-icon {
            width: 42px; height: 42px; border-radius: 50%;
            background: linear-gradient(135deg, #FFCC00, #FF9F00);
            display: flex; align-items: center; justify-content: center;
            color: #062315; font-size: 1.3rem; flex-shrink: 0;
            box-shadow: 0 4px 14px rgba(255, 204, 0, 0.35);
        }
        .logo span { white-space: nowrap; }
        .nav-links { display: flex; align-items: center; gap: 28px; }
        .nav-links a {
            color: var(--text-soft); font-weight: 500; font-size: 0.95rem;
            position: relative; padding: 6px 0; white-space: nowrap;
        }
        .nav-links a::after {
            content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px;
            background: var(--accent-gold); transition: var(--transition); border-radius: 2px;
        }
        .nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
        .nav-links a:hover, .nav-links a.active { color: var(--accent-gold); }
        .nav-auth { display: flex; align-items: center; gap: 12px; }
        .btn-nav-login {
            background: transparent; border: 1px solid rgba(255, 255, 255, 0.3); color: var(--text-primary);
            padding: 8px 18px; border-radius: 50px; font-weight: 600; font-size: 0.9rem;
            transition: var(--transition); white-space: nowrap;
        }
        .btn-nav-login:hover { border-color: var(--accent-gold); color: var(--accent-gold); background: rgba(255, 204, 0, 0.05); }
        .btn-nav-signup {
            background: linear-gradient(135deg, #FFCC00, #FF9F00); color: #062315;
            padding: 8px 20px; border-radius: 50px; font-weight: 700; font-size: 0.9rem;
            border: none; transition: var(--transition); box-shadow: 0 4px 16px rgba(255, 204, 0, 0.3);
            white-space: nowrap;
        }
        .btn-nav-signup:hover { background: linear-gradient(135deg, #FFD700, #FFB300); color: #062315; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(255, 204, 0, 0.45); }
        .mobile-toggle { display: none; background: none; border: none; color: var(--text-primary); font-size: 1.6rem; cursor: pointer; padding: 4px; }

        /* Hero */
        .hero-section {
            position: relative;
            padding: 130px 0 90px;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            min-height: 600px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(6, 35, 21, 0.85) 0%, rgba(11, 60, 37, 0.7) 50%, rgba(6, 35, 21, 0.9) 100%);
            z-index: 1;
        }
        .hero-content { position: relative; z-index: 2; max-width: 760px; }
        .hero-badge {
            display: inline-flex; align-items: center; gap: 8px;
            background: rgba(255, 204, 0, 0.15); border: 1px solid rgba(255, 204, 0, 0.4);
            color: var(--accent-gold); padding: 8px 18px; border-radius: 50px;
            font-size: 0.85rem; font-weight: 600; margin-bottom: 24px;
            backdrop-filter: blur(8px);
        }
        .hero-badge i { font-size: 0.8rem; }
        .hero-title {
            font-size: 3.2rem; font-weight: 800; line-height: 1.15; margin-bottom: 20px;
            letter-spacing: -1px; color: var(--text-primary);
        }
        .hero-desc {
            font-size: 1.1rem; color: var(--text-soft); line-height: 1.7;
            max-width: 640px; margin-bottom: 32px;
        }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 36px; }
        .btn-primary {
            background: linear-gradient(135deg, #FFCC00, #FF9F00); color: #062315;
            padding: 14px 32px; border-radius: 50px; font-weight: 700; font-size: 1rem;
            border: none; transition: var(--transition); box-shadow: 0 6px 24px rgba(255, 204, 0, 0.35);
            display: inline-flex; align-items: center; gap: 10px;
        }
        .btn-primary:hover { background: linear-gradient(135deg, #FFD700, #FFB300); color: #062315; transform: translateY(-2px); box-shadow: 0 8px 30px rgba(255, 204, 0, 0.5); }
        .btn-secondary {
            background: rgba(255, 255, 255, 0.08); color: var(--text-primary);
            padding: 14px 30px; border-radius: 50px; font-weight: 600; font-size: 1rem;
            border: 1px solid rgba(255, 255, 255, 0.3); transition: var(--transition);
            display: inline-flex; align-items: center; gap: 10px;
            backdrop-filter: blur(8px);
        }
        .btn-secondary:hover { background: rgba(255, 255, 255, 0.15); border-color: var(--accent-gold); color: var(--accent-gold); transform: translateY(-2px); }
        .hero-stats { display: flex; flex-wrap: wrap; gap: 24px; }
        .hero-stat { display: flex; flex-direction: column; }
        .hero-stat .stat-num { font-size: 1.7rem; font-weight: 800; color: var(--accent-gold); }
        .hero-stat .stat-label { font-size: 0.85rem; color: var(--text-soft); }

        /* Countdown bar */
        .countdown-bar {
            background: rgba(6, 35, 21, 0.85); backdrop-filter: blur(10px);
            border-top: 1px solid var(--border-soft); border-bottom: 1px solid var(--border-soft);
            padding: 16px 0; position: relative; z-index: 3;
        }
        .countdown-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
        .countdown-label { font-weight: 600; color: var(--text-soft); font-size: 0.95rem; display: flex; align-items: center; gap: 8px; }
        .countdown-timer { display: flex; gap: 12px; align-items: center; }
        .cd-box {
            background: var(--bg-card); border: 1px solid var(--border-soft);
            border-radius: var(--radius-sm); padding: 8px 14px; text-align: center; min-width: 52px;
        }
        .cd-box .cd-num { font-size: 1.4rem; font-weight: 800; color: var(--accent-gold); line-height: 1; }
        .cd-box .cd-label { font-size: 0.7rem; color: var(--text-muted); text-transform: uppercase; }

        /* Game track */
        .game-track { overflow-x: auto; padding: 8px 0 16px; -webkit-overflow-scrolling: touch; scrollbar-width: thin; scrollbar-color: var(--accent-gold) transparent; }
        .game-track::-webkit-scrollbar { height: 6px; }
        .game-track::-webkit-scrollbar-thumb { background: var(--accent-gold); border-radius: 3px; }
        .game-track-inner { display: flex; gap: 20px; min-width: max-content; }
        .game-card-mini {
            background: var(--bg-card); border: 1px solid var(--border-soft); border-radius: var(--radius-md);
            padding: 16px; width: 210px; flex-shrink: 0; transition: var(--transition);
            box-shadow: var(--shadow-card); cursor: pointer;
        }
        .game-card-mini:hover { transform: translateY(-4px); border-color: var(--accent-gold); box-shadow: var(--shadow-gold); }
        .game-card-mini img { border-radius: var(--radius-sm); margin-bottom: 12px; height: 120px; object-fit: cover; width: 100%; }
        .game-card-mini .game-name { font-weight: 700; font-size: 1rem; color: var(--text-primary); margin-bottom: 4px; }
        .game-card-mini .game-tag { font-size: 0.8rem; color: var(--accent-gold); font-weight: 600; }
        .game-card-mini .game-badge {
            position: absolute; top: 12px; right: 12px; background: #D32F2F; color: #fff;
            padding: 3px 10px; border-radius: 50px; font-size: 0.7rem; font-weight: 700;
        }

        /* Featured section */
        .featured-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
        .feature-card {
            background: var(--bg-card); border: 1px solid var(--border-soft); border-radius: var(--radius-lg);
            overflow: hidden; transition: var(--transition); box-shadow: var(--shadow-card);
            position: relative;
        }
        .feature-card:hover { transform: translateY(-4px); border-color: var(--accent-gold); box-shadow: var(--shadow-gold); }
        .feature-card .feature-img { position: relative; overflow: hidden; height: 220px; }
        .feature-card .feature-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
        .feature-card:hover .feature-img img { transform: scale(1.05); }
        .feature-card .feature-body { padding: 20px 22px; }
        .feature-card .feature-title { font-size: 1.3rem; font-weight: 700; margin-bottom: 8px; color: var(--text-primary); }
        .feature-card .feature-desc { font-size: 0.95rem; color: var(--text-soft); line-height: 1.6; margin-bottom: 14px; }
        .feature-tag {
            display: inline-block; background: rgba(255, 204, 0, 0.12); color: var(--accent-gold);
            padding: 4px 12px; border-radius: 50px; font-size: 0.75rem; font-weight: 600;
        }

        /* Hot list */
        .hot-list { display: flex; flex-direction: column; gap: 12px; }
        .hot-item {
            display: flex; align-items: center; gap: 16px; padding: 16px 20px;
            background: var(--bg-card); border: 1px solid var(--border-soft); border-radius: var(--radius-md);
            transition: var(--transition); box-shadow: var(--shadow-card);
        }
        .hot-item:hover { border-color: var(--accent-gold); transform: translateX(4px); }
        .hot-rank {
            width: 42px; height: 42px; border-radius: 50%; flex-shrink: 0;
            background: linear-gradient(135deg, #FFCC00, #FF9F00); color: #062315;
            display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 1.1rem;
        }
        .hot-info { flex: 1; }
        .hot-info .hot-name { font-weight: 700; font-size: 1rem; color: var(--text-primary); }
        .hot-info .hot-desc { font-size: 0.85rem; color: var(--text-muted); }
        .hot-jackpot { font-weight: 700; color: var(--accent-gold); font-size: 0.95rem; white-space: nowrap; }

        /* Info list */
        .info-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
        .info-card {
            background: var(--bg-card); border: 1px solid var(--border-soft); border-radius: var(--radius-md);
            padding: 24px; transition: var(--transition); box-shadow: var(--shadow-card);
        }
        .info-card:hover { border-color: var(--accent-gold); transform: translateY(-3px); }
        .info-card .info-icon {
            width: 48px; height: 48px; border-radius: 14px; background: rgba(255, 204, 0, 0.12);
            display: flex; align-items: center; justify-content: center; color: var(--accent-gold);
            font-size: 1.3rem; margin-bottom: 16px;
        }
        .info-card h3 { font-size: 1.1rem; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; }
        .info-card p { font-size: 0.9rem; color: var(--text-soft); line-height: 1.6; margin: 0; }

        /* Steps */
        .steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
        .step-card {
            background: var(--bg-card); border: 1px solid var(--border-soft); border-radius: var(--radius-md);
            padding: 24px; text-align: center; transition: var(--transition); box-shadow: var(--shadow-card);
            position: relative;
        }
        .step-card:hover { border-color: var(--accent-gold); transform: translateY(-3px); }
        .step-num {
            width: 44px; height: 44px; border-radius: 50%; margin: 0 auto 14px;
            background: linear-gradient(135deg, #FFCC00, #FF9F00); color: #062315;
            display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 1.2rem;
        }
        .step-card h3 { font-size: 1rem; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; }
        .step-card p { font-size: 0.85rem; color: var(--text-soft); line-height: 1.6; margin: 0; }

        /* Social proof */
        .proof-strip {
            background: var(--bg-deep); border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg); padding: 28px 32px;
            display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 20px;
        }
        .proof-item { display: flex; align-items: center; gap: 12px; }
        .proof-item .proof-icon { font-size: 1.6rem; color: var(--accent-gold); }
        .proof-item .proof-num { font-size: 1.3rem; font-weight: 800; color: var(--text-primary); }
        .proof-item .proof-label { font-size: 0.85rem; color: var(--text-muted); }

        /* FAQ */
        .faq-list { display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--bg-card); border: 1px solid var(--border-soft); border-radius: var(--radius-md);
            overflow: hidden; transition: var(--transition); box-shadow: var(--shadow-card);
        }
        .faq-item:hover { border-color: var(--accent-gold); }
        .faq-question {
            padding: 18px 24px; cursor: pointer; font-weight: 600; font-size: 1rem;
            color: var(--text-primary); display: flex; align-items: center; justify-content: space-between;
            gap: 16px; user-select: none;
        }
        .faq-question .faq-icon { transition: var(--transition); color: var(--accent-gold); font-size: 1.1rem; }
        .faq-answer {
            max-height: 0; overflow: hidden; transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 24px; color: var(--text-soft); font-size: 0.95rem; line-height: 1.7;
        }
        .faq-item.open .faq-answer { max-height: 300px; padding: 0 24px 20px; }
        .faq-item.open .faq-icon { transform: rotate(180deg); }

        /* CMS Section */
        .cms-layout { display: grid; grid-template-columns: 2fr 1fr; gap: 24px; }
        .cms-list { display: flex; flex-direction: column; gap: 12px; }
        .cms-item {
            display: flex; align-items: center; gap: 16px; padding: 16px 20px;
            background: var(--bg-card); border: 1px solid var(--border-soft); border-radius: var(--radius-md);
            transition: var(--transition); box-shadow: var(--shadow-card);
        }
        .cms-item:hover { border-color: var(--accent-gold); transform: translateX(4px); }
        .cms-date {
            flex-shrink: 0; width: 54px; height: 54px; border-radius: var(--radius-sm);
            background: rgba(255, 204, 0, 0.1); display: flex; flex-direction: column;
            align-items: center; justify-content: center; font-weight: 700; color: var(--accent-gold);
        }
        .cms-date .d { font-size: 1.2rem; line-height: 1; }
        .cms-date .m { font-size: 0.7rem; text-transform: uppercase; }
        .cms-item-content { flex: 1; }
        .cms-item-title { font-weight: 600; font-size: 0.95rem; color: var(--text-primary); margin-bottom: 4px; }
        .cms-item-title:hover { color: var(--accent-gold); }
        .cms-item-meta { font-size: 0.8rem; color: var(--text-muted); display: flex; gap: 12px; }
        .cms-sidebar {
            background: var(--bg-deep); border: 1px solid var(--border-soft);
            border-radius: var(--radius-md); padding: 24px; box-shadow: var(--shadow-card);
        }
        .cms-sidebar h4 { font-size: 1.1rem; font-weight: 700; color: var(--accent-gold); margin-bottom: 16px; }
        .cms-sidebar-list { display: flex; flex-direction: column; gap: 10px; }
        .cms-sidebar-link { font-size: 0.9rem; color: var(--text-soft); display: flex; align-items: center; gap: 8px; transition: var(--transition); }
        .cms-sidebar-link:hover { color: var(--accent-gold); }
        .cms-sidebar-link i { font-size: 0.7rem; color: var(--accent-gold); }

        /* CTA */
        .cta-section {
            background: url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
            position: relative; border-radius: var(--radius-lg); overflow: hidden;
            padding: 60px 40px;
        }
        .cta-section::before {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(6, 35, 21, 0.88) 0%, rgba(11, 60, 37, 0.75) 100%);
        }
        .cta-content { position: relative; z-index: 2; max-width: 620px; }
        .cta-title { font-size: 2.2rem; font-weight: 800; color: var(--text-primary); margin-bottom: 16px; }
        .cta-desc { font-size: 1.05rem; color: var(--text-soft); line-height: 1.7; margin-bottom: 28px; }

        /* Footer */
        .site-footer {
            background: var(--bg-deep); border-top: 1px solid var(--border-soft);
            padding: 48px 0 28px; margin-top: 72px;
        }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 36px; }
        .footer-brand { font-weight: 800; font-size: 1.1rem; color: var(--text-primary); margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
        .footer-brand .logo-icon { width: 36px; height: 36px; border-radius: 50%; background: linear-gradient(135deg, #FFCC00, #FF9F00); display: flex; align-items: center; justify-content: center; color: #062315; font-size: 1rem; }
        .footer-desc { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; max-width: 380px; }
        .footer-heading { font-size: 0.95rem; font-weight: 700; color: var(--accent-gold); margin-bottom: 16px; }
        .footer-links { list-style: none; padding: 0; margin: 0; }
        .footer-links li { margin-bottom: 10px; }
        .footer-links a { color: var(--text-muted); font-size: 0.9rem; transition: var(--transition); }
        .footer-links a:hover { color: var(--accent-gold); }
        .footer-bottom {
            border-top: 1px solid rgba(255, 204, 0, 0.15); padding-top: 20px;
            display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
            font-size: 0.85rem; color: var(--text-muted);
        }
        .footer-badges { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
        .badge-18 {
            background: #D32F2F; color: #fff; padding: 4px 10px; border-radius: 50px;
            font-weight: 700; font-size: 0.75rem;
        }
        .badge-license {
            background: rgba(255, 204, 0, 0.12); color: var(--accent-gold); padding: 4px 10px;
            border-radius: 50px; font-size: 0.75rem; font-weight: 600;
        }

        /* FAB */
        .fab-left {
            position: fixed; left: 20px; bottom: 90px; z-index: 999;
            width: 56px; height: 56px; border-radius: 50%;
            background: linear-gradient(135deg, #FFCC00, #FF9F00); color: #062315;
            display: flex; align-items: center; justify-content: center;
            font-size: 1.5rem; border: 2px solid #FFD700; cursor: pointer;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            transition: var(--transition); animation: fabFloat 3s ease-in-out infinite;
            text-decoration: none;
        }
        .fab-left:hover { transform: scale(1.1); box-shadow: 0 6px 28px rgba(255, 215, 0, 0.5); }
        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
        .fab-notification {
            position: absolute; top: 2px; right: 2px; width: 14px; height: 14px;
            background: #D32F2F; border-radius: 50%; border: 2px solid #FFD700;
            animation: blink 1.5s ease-in-out infinite;
        }
        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-title { font-size: 2.5rem; }
            .info-list { grid-template-columns: repeat(2, 1fr); }
            .steps-grid { grid-template-columns: repeat(2, 1fr); }
            .cms-layout { grid-template-columns: 1fr; }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none; position: absolute; top: 72px; left: 0; right: 0;
                background: rgba(6, 35, 21, 0.98); flex-direction: column;
                padding: 20px 24px; gap: 16px; border-bottom: 1px solid var(--border-soft);
                box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            }
            .nav-links.open { display: flex; }
            .mobile-toggle { display: block; }
            .hero-section { padding: 110px 0 60px; min-height: auto; }
            .hero-title { font-size: 2rem; }
            .hero-desc { font-size: 1rem; }
            .featured-grid { grid-template-columns: 1fr; }
            .info-list { grid-template-columns: 1fr; }
            .steps-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
            .section-pad { padding: 50px 0; }
            .section-title { font-size: 1.6rem; }
            .countdown-inner { flex-direction: column; align-items: flex-start; }
            .hero-stats { gap: 16px; }
            .cta-section { padding: 40px 24px; }
            .cta-title { font-size: 1.7rem; }
            .fab-left { left: 12px; bottom: 76px; width: 48px; height: 48px; font-size: 1.3rem; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .hero-title { font-size: 1.7rem; }
            .btn-primary, .btn-secondary { padding: 12px 22px; font-size: 0.9rem; width: 100%; justify-content: center; }
            .hero-actions { flex-direction: column; }
            .hero-stat .stat-num { font-size: 1.4rem; }
            .logo span { font-size: 1rem; }
            .nav-auth .btn-nav-login { padding: 6px 12px; font-size: 0.8rem; }
            .nav-auth .btn-nav-signup { padding: 6px 14px; font-size: 0.8rem; }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-card: #0E351F;
            --bg-dark: #071F13;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --accent-amber: #FFBF00;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: #8FB8A8;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-soft: rgba(255, 215, 0, 0.18);
            --shadow-gold: 0 8px 32px rgba(255, 215, 0, 0.15);
            --shadow-deep: 0 12px 40px rgba(0, 0, 0, 0.4);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.5rem;
            --spacing-lg: 2.5rem;
            --spacing-xl: 4rem;
            --transition-fast: 0.2s ease;
            --transition-med: 0.35s ease;
            --transition-slow: 0.5s ease;
        }
        
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        html {
            scroll-behavior: smooth;
        }
        
        body {
            font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            background: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(7, 31, 19, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-soft);
            transition: background var(--transition-med), box-shadow var(--transition-med);
        }
        
        .site-header.scrolled {
            background: rgba(7, 31, 19, 0.98);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
        }
        
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        
        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-dark);
            font-size: 18px;
            flex-shrink: 0;
        }
        
        .logo-text {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--accent-gold);
            letter-spacing: 0.02em;
            line-height: 1.3;
        }
        
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        
        .nav-links a {
            padding: 8px 14px;
            border-radius: 6px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-mint);
            transition: all var(--transition-fast);
            position: relative;
        }
        
        .nav-links a:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }
        
        .nav-links a.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.12);
            font-weight: 600;
        }
        
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 1px;
        }
        
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        
        .btn-login {
            padding: 8px 18px;
            border-radius: 6px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-mint);
            background: transparent;
            border: 1px solid var(--border-soft);
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        
        .btn-login:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.06);
        }
        
        .btn-signup {
            padding: 8px 20px;
            border-radius: 6px;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--bg-dark);
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(255, 215, 0, 0.3);
        }
        
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(255, 215, 0, 0.45);
            background: linear-gradient(135deg, #FFE44D, #FFD700);
        }
        
        .mobile-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border-soft);
            color: var(--accent-gold);
            width: 42px;
            height: 42px;
            border-radius: 8px;
            font-size: 1.2rem;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-fast);
        }
        
        .mobile-toggle:hover {
            background: rgba(255, 215, 0, 0.1);
            border-color: var(--accent-gold);
        }
        
        /* Hero Section */
        .hero-section {
            padding: 140px 0 80px;
            position: relative;
            background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-secondary) 60%, var(--bg-primary) 100%);
            overflow: hidden;
        }
        
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }
        
        .hero-content {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }
        
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: 30px;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            font-size: 0.82rem;
            font-weight: 600;
            margin-bottom: 20px;
        }
        
        .hero-badge i {
            font-size: 0.75rem;
        }
        
        .hero-title {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            color: var(--text-white);
        }
        
        .hero-title .highlight {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .hero-subtitle {
            font-size: 1.05rem;
            color: var(--text-mint);
            margin-bottom: 24px;
            max-width: 520px;
            line-height: 1.6;
        }
        
        .hero-stats {
            display: flex;
            gap: 28px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }
        
        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        
        .hero-stat-value {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent-gold);
        }
        
        .hero-stat-label {
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        
        .btn-primary {
            padding: 12px 28px;
            border-radius: 8px;
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--bg-dark);
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            box-shadow: 0 6px 20px rgba(255, 215, 0, 0.35);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 32px rgba(255, 215, 0, 0.5);
            background: linear-gradient(135deg, #FFE44D, #FFD700);
        }
        
        .btn-outline {
            padding: 12px 24px;
            border-radius: 8px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--accent-gold);
            background: transparent;
            border: 1px solid var(--border-gold);
            cursor: pointer;
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        
        .btn-outline:hover {
            background: rgba(255, 215, 0, 0.1);
            border-color: var(--accent-gold);
            transform: translateY(-2px);
        }
        
        .hero-panel {
            background: rgba(14, 53, 31, 0.85);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 28px;
            backdrop-filter: blur(8px);
            box-shadow: var(--shadow-deep);
        }
        
        .hero-panel-heading {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .progress-label {
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            color: var(--text-mint);
            margin-bottom: 8px;
        }
        
        .progress-bar {
            width: 100%;
            height: 10px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 5px;
            overflow: hidden;
            margin-bottom: 20px;
        }
        
        .progress-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-amber));
            border-radius: 5px;
            width: 72%;
            transition: width var(--transition-slow);
            position: relative;
        }
        
        .progress-fill::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            width: 20px;
            background: rgba(255, 255, 255, 0.3);
            border-radius: 5px;
        }
        
        .reward-list {
            list-style: none;
            margin: 16px 0 20px;
            padding: 0;
        }
        
        .reward-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 0;
            border-bottom: 1px solid var(--border-soft);
            font-size: 0.9rem;
            color: var(--text-mint);
        }
        
        .reward-list li:last-child {
            border-bottom: none;
        }
        
        .reward-list li i {
            color: var(--accent-gold);
            font-size: 0.8rem;
            width: 16px;
        }
        
        /* Section Styles */
        .section {
            padding: 70px 0;
        }
        
        .section-alt {
            background: var(--bg-secondary);
        }
        
        .section-dark {
            background: var(--bg-dark);
        }
        
        .section-header {
            margin-bottom: 40px;
        }
        
        .section-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--accent-gold);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 10px;
        }
        
        .section-title {
            font-size: 1.9rem;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        
        .section-desc {
            font-size: 0.98rem;
            color: var(--text-mint);
            max-width: 680px;
            line-height: 1.6;
        }
        
        /* Metrics Board */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        
        .metric-card {
            background: rgba(14, 53, 31, 0.7);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            padding: 24px;
            text-align: center;
            transition: all var(--transition-med);
            position: relative;
            overflow: hidden;
        }
        
        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-amber));
            opacity: 0;
            transition: opacity var(--transition-med);
        }
        
        .metric-card:hover {
            border-color: var(--border-gold);
            transform: translateY(-4px);
            box-shadow: var(--shadow-gold);
        }
        
        .metric-card:hover::before {
            opacity: 1;
        }
        
        .metric-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(255, 215, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            color: var(--accent-gold);
            font-size: 1.3rem;
        }
        
        .metric-value {
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 4px;
        }
        
        .metric-label {
            font-size: 0.85rem;
            color: var(--text-mint);
        }
        
        /* Service Matrix */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        
        .service-card {
            background: rgba(14, 53, 31, 0.7);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: all var(--transition-med);
            position: relative;
        }
        
        .service-card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold);
            transform: translateY(-3px);
        }
        
        .service-card-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(255, 215, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            color: var(--accent-gold);
            font-size: 1.4rem;
        }
        
        .service-card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 10px;
        }
        
        .service-card-desc {
            font-size: 0.9rem;
            color: var(--text-mint);
            line-height: 1.6;
        }
        
        .service-card-badge {
            position: absolute;
            top: 20px;
            right: 20px;
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 0.72rem;
            font-weight: 700;
            background: var(--accent-red);
            color: #fff;
            letter-spacing: 0.04em;
        }
        
        /* Comparison Section */
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        
        .comparison-card {
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--border-soft);
            background: rgba(14, 53, 31, 0.7);
        }
        
        .comparison-card.highlight {
            border-color: var(--border-gold);
            background: rgba(255, 215, 0, 0.06);
            box-shadow: var(--shadow-gold);
        }
        
        .comparison-card-heading {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .comparison-card-heading i {
            color: var(--accent-gold);
        }
        
        .comparison-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .comparison-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-soft);
            font-size: 0.9rem;
            color: var(--text-mint);
        }
        
        .comparison-list li:last-child {
            border-bottom: none;
        }
        
        .comparison-list li i {
            color: var(--accent-gold);
            font-size: 0.8rem;
            margin-top: 4px;
        }
        
        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-secondary) 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
            border: 1px solid var(--border-gold);
        }
        
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at center, rgba(255, 215, 0, 0.06) 0%, transparent 60%);
            animation: pulseGlow 4s ease-in-out infinite;
        }
        
        @keyframes pulseGlow {
            0%, 100% { opacity: 0.5; }
            50% { opacity: 1; }
        }
        
        .cta-content {
            position: relative;
            z-index: 1;
        }
        
        .cta-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 14px;
        }
        
        .cta-desc {
            font-size: 1rem;
            color: var(--text-mint);
            max-width: 560px;
            margin: 0 auto 24px;
        }
        
        /* FAQ Section */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .faq-item {
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            background: rgba(14, 53, 31, 0.5);
            transition: all var(--transition-fast);
        }
        
        .faq-item:hover {
            border-color: var(--border-gold);
        }
        
        .faq-question {
            width: 100%;
            padding: 18px 20px;
            background: none;
            border: none;
            color: var(--text-white);
            font-size: 0.95rem;
            font-weight: 600;
            text-align: left;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition-fast);
        }
        
        .faq-question:hover {
            color: var(--accent-gold);
        }
        
        .faq-question i {
            color: var(--accent-gold);
            transition: transform var(--transition-fast);
            font-size: 0.85rem;
        }
        
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-med);
            padding: 0 20px;
        }
        
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }
        
        .faq-answer p {
            font-size: 0.9rem;
            color: var(--text-mint);
            line-height: 1.6;
        }
        
        /* Image Cards */
        .image-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        
        .image-card {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-soft);
            background: rgba(14, 53, 31, 0.7);
            transition: all var(--transition-med);
        }
        
        .image-card:hover {
            border-color: var(--border-gold);
            transform: translateY(-4px);
            box-shadow: var(--shadow-gold);
        }
        
        .image-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        
        .image-card-body {
            padding: 18px;
        }
        
        .image-card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 8px;
        }
        
        .image-card-desc {
            font-size: 0.85rem;
            color: var(--text-mint);
            line-height: 1.5;
        }
        
        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border-soft);
            padding: 50px 0 20px;
            margin-top: 40px;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        
        .footer-brand .logo-icon {
            width: 36px;
            height: 36px;
            font-size: 15px;
        }
        
        .footer-brand span {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--accent-gold);
        }
        
        .footer-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            max-width: 340px;
        }
        
        .footer-heading {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 14px;
        }
        
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .footer-links li {
            margin-bottom: 8px;
        }
        
        .footer-links a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        
        .footer-links a:hover {
            color: var(--accent-gold);
        }
        
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid var(--border-soft);
            font-size: 0.78rem;
            color: var(--text-muted);
        }
        
        .footer-badges {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        
        .badge-18 {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--accent-red);
            color: #fff;
            font-weight: 800;
            font-size: 0.7rem;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 2px solid var(--accent-gold);
        }
        
        .badge-license {
            padding: 6px 12px;
            border-radius: 6px;
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid var(--border-soft);
            color: var(--text-mint);
            font-size: 0.72rem;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        
        .badge-license i {
            color: var(--accent-gold);
            font-size: 0.7rem;
        }
        
        /* FAB */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 90;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--bg-dark), #1a0f05);
            border: 3px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            opacity: 0.7;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            transition: all var(--transition-med);
            animation: floatBreath 3s ease-in-out infinite;
            color: var(--accent-gold);
            font-size: 1.3rem;
            position: relative;
        }
        
        .fab::before {
            content: '';
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent-red);
            border: 2px solid var(--bg-dark);
            animation: blinkDot 1.5s ease-in-out infinite;
        }
        
        @keyframes floatBreath {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        
        @keyframes blinkDot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        
        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 32px rgba(255, 215, 0, 0.5);
            animation-play-state: paused;
        }
        
        .fab:active {
            transform: scale(0.95) translateY(2px);
        }
        
        /* Responsive */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            
            .hero-panel {
                max-width: 520px;
            }
            
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .image-card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }
            
            .nav-links {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(7, 31, 19, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 1px solid var(--border-soft);
            }
            
            .nav-links.open {
                display: flex;
            }
            
            .nav-links a {
                width: 100%;
                padding: 12px 14px;
                font-size: 0.95rem;
            }
            
            .mobile-toggle {
                display: flex;
            }
            
            .header-actions {
                gap: 6px;
            }
            
            .btn-login, .btn-signup {
                padding: 7px 14px;
                font-size: 0.8rem;
            }
            
            .hero-section {
                padding: 110px 0 60px;
            }
            
            .hero-title {
                font-size: 1.9rem;
            }
            
            .hero-stats {
                gap: 18px;
            }
            
            .section {
                padding: 50px 0;
            }
            
            .section-title {
                font-size: 1.5rem;
            }
            
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            
            .service-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            
            .comparison-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            
            .image-card-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            
            .cta-section {
                padding: 32px 20px;
            }
            
            .cta-title {
                font-size: 1.5rem;
            }
            
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.6rem;
            }
            
            .hero-subtitle {
                font-size: 0.9rem;
            }
            
            .hero-stat-value {
                font-size: 1.3rem;
            }
            
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            
            .hero-actions .btn-primary,
            .hero-actions .btn-outline {
                width: 100%;
                justify-content: center;
            }
            
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            
            .metric-card {
                padding: 18px;
            }
            
            .section-title {
                font-size: 1.3rem;
            }
            
            .fab {
                width: 48px;
                height: 48px;
                font-size: 1.1rem;
                left: 12px;
                bottom: 80px;
            }
            
            .logo-text {
                font-size: 0.9rem;
            }
            
            .btn-login, .btn-signup {
                padding: 6px 12px;
                font-size: 0.75rem;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-deep: #062315;
            --accent-gold: #FFD700;
            --accent-gold-soft: #F0E68C;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: #A8C9BC;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-gold-strong: rgba(255, 215, 0, 0.7);
            --shadow-gold: 0 4px 24px rgba(255, 215, 0, 0.12);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --font-sans: 'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-deep);
            color: var(--text-white);
            line-height: 1.65;
            font-size: 16px;
            overflow-x: hidden;
        }

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

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

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(6, 35, 21, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-gold);
            padding: 0;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 76px;
            gap: 20px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(145deg, #FFD700, #D4A017);
            color: #0A2E1C;
            font-size: 20px;
            box-shadow: 0 4px 16px rgba(255, 215, 0, 0.35);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .brand:hover .logo-icon {
            transform: scale(1.08);
            box-shadow: 0 6px 24px rgba(255, 215, 0, 0.5);
        }

        .brand-name {
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--accent-gold);
            letter-spacing: -0.01em;
            line-height: 1.3;
        }

        .brand-name span {
            display: block;
            font-size: 0.72rem;
            font-weight: 500;
            color: var(--text-mint);
            letter-spacing: 0.04em;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 10px 18px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.92rem;
            color: var(--text-mint);
            transition: background var(--transition), color var(--transition), box-shadow var(--transition);
            white-space: nowrap;
        }

        .nav-links a:hover {
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
        }

        .nav-links a.active {
            background: linear-gradient(145deg, #FFD700, #E6B800);
            color: #0A2E1C;
            font-weight: 700;
            box-shadow: 0 4px 16px rgba(255, 215, 0, 0.3);
        }

        .nav-links a.active:hover {
            background: linear-gradient(145deg, #FFE033, #FFC700);
            color: #0A2E1C;
            box-shadow: 0 6px 20px rgba(255, 215, 0, 0.45);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .btn-login {
            display: inline-flex;
            align-items: center;
            padding: 10px 20px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.88rem;
            color: var(--text-mint);
            transition: color var(--transition), background var(--transition);
        }

        .btn-login:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }

        .btn-signup {
            display: inline-flex;
            align-items: center;
            padding: 10px 24px;
            border-radius: 50px;
            font-weight: 800;
            font-size: 0.88rem;
            background: linear-gradient(145deg, #D32F2F, #B71C1C);
            color: #FFFFFF;
            box-shadow: 0 4px 18px rgba(211, 47, 47, 0.4);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(211, 47, 47, 0.55);
            color: #FFFFFF;
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 10px;
            cursor: pointer;
        }

        .menu-toggle span {
            width: 24px;
            height: 2.5px;
            background: var(--accent-gold);
            border-radius: 2px;
            transition: transform var(--transition), opacity var(--transition);
        }

        /* Article Hero */
        .article-hero {
            position: relative;
            padding: 60px 0 48px;
            background: url('/assets/images/backpic/back-3.jpg') center / cover no-repeat;
            background-attachment: fixed;
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(6, 35, 21, 0.88) 0%, rgba(6, 35, 21, 0.94) 100%);
            z-index: 1;
        }

        .article-hero .container {
            position: relative;
            z-index: 2;
        }

        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .article-breadcrumb a {
            color: var(--accent-gold);
            font-weight: 600;
        }

        .article-breadcrumb a:hover {
            text-decoration: underline;
        }

        .article-breadcrumb .sep {
            color: var(--border-gold-strong);
            font-size: 0.7rem;
        }

        .article-hero h1 {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            font-weight: 900;
            line-height: 1.3;
            color: var(--accent-gold);
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            max-width: 900px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.88rem;
            color: var(--text-mint);
        }

        .article-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .article-meta .meta-item i {
            color: var(--accent-gold);
            font-size: 0.85rem;
        }

        .article-category-badge {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            border-radius: 50px;
            background: rgba(255, 215, 0, 0.15);
            color: var(--accent-gold);
            font-weight: 700;
            font-size: 0.8rem;
            border: 1px solid var(--border-gold);
            letter-spacing: 0.02em;
        }

        /* Article Content Layout */
        .article-content-section {
            padding: 56px 0 72px;
            background: var(--bg-deep);
        }

        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 320px;
            gap: 48px;
            align-items: start;
        }

        .article-main {
            min-width: 0;
        }

        .article-cover-wrap {
            margin-bottom: 32px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-gold);
        }

        .article-cover-wrap img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        .article-body {
            font-size: 1.02rem;
            line-height: 1.75;
            color: var(--text-mint);
        }

        .article-body h2 {
            font-size: 1.55rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin: 36px 0 16px;
            letter-spacing: -0.01em;
            line-height: 1.35;
        }

        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-white);
            margin: 28px 0 12px;
            line-height: 1.4;
        }

        .article-body p {
            margin-bottom: 18px;
        }

        .article-body ul,
        .article-body ol {
            margin: 0 0 20px 24px;
            padding: 0;
        }

        .article-body li {
            margin-bottom: 10px;
            position: relative;
        }

        .article-body ul li::marker {
            color: var(--accent-gold);
        }

        .article-body strong {
            color: var(--accent-gold);
            font-weight: 700;
        }

        .article-body a {
            color: var(--accent-gold);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-body a:hover {
            color: #FFE033;
        }

        .article-body blockquote {
            margin: 24px 0;
            padding: 20px 28px;
            border-left: 4px solid var(--accent-gold);
            background: rgba(255, 215, 0, 0.06);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            font-style: italic;
            color: var(--text-mint);
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            box-shadow: var(--shadow-card);
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
        }

        .article-body table th {
            background: rgba(255, 215, 0, 0.12);
            color: var(--accent-gold);
            font-weight: 700;
            padding: 12px 16px;
            text-align: left;
            border: 1px solid var(--border-gold);
        }

        .article-body table td {
            padding: 12px 16px;
            border: 1px solid var(--border-gold);
            color: var(--text-mint);
        }

        /* In-article CTA */
        .article-cta-box {
            margin: 36px 0;
            padding: 32px 28px;
            border-radius: var(--radius-lg);
            background: linear-gradient(145deg, rgba(255, 215, 0, 0.1), rgba(211, 47, 47, 0.08));
            border: 1px solid var(--border-gold-strong);
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-gold);
        }

        .article-cta-box .cta-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(145deg, #FFD700, #D4A017);
            color: #0A2E1C;
            font-size: 24px;
            flex-shrink: 0;
            box-shadow: 0 4px 16px rgba(255, 215, 0, 0.4);
        }

        .article-cta-box .cta-text {
            flex: 1;
            min-width: 200px;
        }

        .article-cta-box .cta-text h4 {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 6px;
        }

        .article-cta-box .cta-text p {
            font-size: 0.9rem;
            color: var(--text-mint);
            margin: 0;
        }

        .article-cta-box .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: 50px;
            background: linear-gradient(145deg, #D32F2F, #B71C1C);
            color: #FFFFFF;
            font-weight: 800;
            font-size: 0.95rem;
            box-shadow: 0 4px 18px rgba(211, 47, 47, 0.4);
            transition: transform var(--transition), box-shadow var(--transition);
            flex-shrink: 0;
        }

        .article-cta-box .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(211, 47, 47, 0.55);
            color: #FFFFFF;
        }

        /* Article Sidebar */
        .article-sidebar {
            position: sticky;
            top: 100px;
        }

        .sidebar-widget {
            background: var(--bg-secondary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 24px;
            margin-bottom: 24px;
            box-shadow: var(--shadow-card);
        }

        .sidebar-widget h3 {
            font-size: 1.05rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.01em;
        }

        .sidebar-widget h3 i {
            font-size: 1rem;
        }

        .sidebar-post-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .sidebar-post-list li {
            margin-bottom: 14px;
            padding-bottom: 14px;
            border-bottom: 1px solid rgba(255, 215, 0, 0.12);
        }

        .sidebar-post-list li:last-child {
            margin-bottom: 0;
            padding-bottom: 0;
            border-bottom: none;
        }

        .sidebar-post-list a {
            display: block;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-mint);
            line-height: 1.5;
            transition: color var(--transition);
        }

        .sidebar-post-list a:hover {
            color: var(--accent-gold);
        }

        .sidebar-post-list .post-date {
            display: block;
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .sidebar-promo-card {
            background: linear-gradient(145deg, rgba(255, 215, 0, 0.15), rgba(211, 47, 47, 0.1));
            border: 1px solid var(--border-gold-strong);
            border-radius: var(--radius-lg);
            padding: 24px;
            text-align: center;
            box-shadow: var(--shadow-gold);
        }

        .sidebar-promo-card .promo-icon {
            font-size: 40px;
            color: var(--accent-gold);
            margin-bottom: 12px;
        }

        .sidebar-promo-card h4 {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 8px;
        }

        .sidebar-promo-card p {
            font-size: 0.85rem;
            color: var(--text-mint);
            margin-bottom: 16px;
        }

        .sidebar-promo-card .btn-promo {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 12px 24px;
            border-radius: 50px;
            background: linear-gradient(145deg, #D32F2F, #B71C1C);
            color: #FFFFFF;
            font-weight: 800;
            font-size: 0.85rem;
            box-shadow: 0 4px 16px rgba(211, 47, 47, 0.4);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .sidebar-promo-card .btn-promo:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(211, 47, 47, 0.55);
            color: #FFFFFF;
        }

        /* Not Found State */
        .not-found-box {
            text-align: center;
            padding: 72px 24px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
        }

        .not-found-box .nf-icon {
            font-size: 56px;
            color: var(--accent-gold);
            margin-bottom: 20px;
        }

        .not-found-box h2 {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 12px;
        }

        .not-found-box p {
            font-size: 1rem;
            color: var(--text-mint);
            margin-bottom: 24px;
        }

        .not-found-box .btn-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            background: linear-gradient(145deg, #FFD700, #E6B800);
            color: #0A2E1C;
            font-weight: 800;
            font-size: 0.95rem;
            box-shadow: 0 4px 16px rgba(255, 215, 0, 0.35);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .not-found-box .btn-home:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 215, 0, 0.5);
            color: #0A2E1C;
        }

        /* Related Section */
        .related-section {
            margin-top: 56px;
            padding-top: 40px;
            border-top: 1px solid var(--border-gold);
        }

        .related-section h2 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 24px;
            letter-spacing: -0.01em;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 24px;
        }

        .related-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-gold);
            border-color: var(--border-gold-strong);
        }

        .related-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }

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

        .related-card-body h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
            line-height: 1.5;
            margin-bottom: 8px;
        }

        .related-card-body a:hover h4 {
            color: var(--accent-gold);
        }

        .related-card-body .related-date {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border-gold);
            padding: 56px 0 28px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--accent-gold);
            margin-bottom: 16px;
        }

        .footer-brand .logo-icon {
            width: 36px;
            height: 36px;
            font-size: 16px;
        }

        .footer-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 400px;
        }

        .footer-heading {
            font-size: 0.95rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

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

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            font-size: 0.88rem;
            color: var(--text-muted);
            transition: color var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 215, 0, 0.15);
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .footer-badges {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .badge-18 {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 2px solid var(--accent-red);
            color: var(--accent-red);
            font-weight: 900;
            font-size: 0.75rem;
        }

        .badge-license {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 50px;
            border: 1px solid var(--border-gold);
            color: var(--text-mint);
            font-size: 0.75rem;
            font-weight: 600;
        }

        .badge-license i {
            color: var(--accent-gold);
            font-size: 0.7rem;
        }

        /* FAB */
        .fab-support {
            position: fixed;
            left: 24px;
            bottom: 96px;
            z-index: 999;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(145deg, #FFD700, #D4A017);
            color: #0A2E1C;
            font-size: 22px;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.35);
            opacity: 0.75;
            transition: transform var(--transition), opacity var(--transition), box-shadow var(--transition);
            animation: fab-float 4s ease-in-out infinite;
        }

        .fab-support:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.55);
            color: #0A2E1C;
        }

        .fab-support:active {
            transform: scale(0.95) translateY(2px);
        }

        .fab-notification-dot {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: #D32F2F;
            border: 2px solid #FFFFFF;
            animation: dot-blink 2s ease-in-out infinite;
        }

        @keyframes fab-float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }

        @keyframes dot-blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .article-sidebar {
                position: static;
            }

            .sidebar-widget {
                margin-bottom: 16px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                min-height: 64px;
                flex-wrap: wrap;
                padding: 12px 0;
            }

            .brand {
                order: 1;
            }

            .menu-toggle {
                display: flex;
                order: 3;
            }

            .header-actions {
                order: 2;
                margin-left: auto;
            }

            .nav-links {
                order: 4;
                flex-basis: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding: 12px 0;
                display: none;
                border-top: 1px solid var(--border-gold);
                margin-top: 12px;
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links a {
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                width: 100%;
                text-align: left;
            }

            .btn-login,
            .btn-signup {
                padding: 8px 16px;
                font-size: 0.8rem;
            }

            .article-hero {
                padding: 40px 0 32px;
                background-attachment: scroll;
            }

            .article-hero h1 {
                font-size: 1.6rem;
            }

            .article-content-section {
                padding: 40px 0 56px;
            }

            .article-body {
                font-size: 0.95rem;
            }

            .article-body h2 {
                font-size: 1.3rem;
            }

            .article-body h3 {
                font-size: 1.1rem;
            }

            .article-cta-box {
                flex-direction: column;
                align-items: flex-start;
                padding: 24px 20px;
                gap: 16px;
            }

            .article-cta-box .btn-cta {
                width: 100%;
                justify-content: center;
            }

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 12px;
            }

            .fab-support {
                left: 16px;
                bottom: 80px;
                width: 50px;
                height: 50px;
                font-size: 20px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .brand-name {
                font-size: 1rem;
            }

            .brand-name span {
                font-size: 0.65rem;
            }

            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 16px;
            }

            .header-actions {
                gap: 6px;
            }

            .btn-login,
            .btn-signup {
                padding: 7px 14px;
                font-size: 0.75rem;
            }

            .article-hero h1 {
                font-size: 1.4rem;
            }

            .article-meta {
                gap: 12px;
                font-size: 0.8rem;
            }

            .article-cta-box .cta-icon {
                width: 44px;
                height: 44px;
                font-size: 18px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-deep: #062315;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: #A8C5BA;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-soft: rgba(209, 242, 235, 0.12);
            --shadow-glow: 0 8px 32px rgba(255, 215, 0, 0.18);
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.35);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --space-xs: 0.5rem;
            --space-sm: 1rem;
            --space-md: 1.5rem;
            --space-lg: 2.5rem;
            --space-xl: 4rem;
            --space-xxl: 6rem;
            --font-main: 'Be Vietnam Pro', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --transition-slow: 0.5s cubic-bezier(0.22, 1, 0.36, 1);
        }

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

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

        body {
            font-family: var(--font-main);
            background: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.6;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(6, 35, 21, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-soft);
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.85rem 0;
            min-height: 70px;
            gap: 1rem;
        }

        .logo-brand {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            flex-shrink: 0;
            text-decoration: none;
            color: var(--text-white);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, #FFD700 0%, #D32F2F 100%);
            border-radius: 50%;
            color: #0A2E1C;
            font-size: 1.2rem;
            flex-shrink: 0;
            box-shadow: 0 0 18px rgba(255, 215, 0, 0.35);
        }

        .logo-text {
            font-size: 1.25rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--text-white);
            line-height: 1.2;
            white-space: nowrap;
        }

        .logo-text .highlight {
            color: var(--accent-gold);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.35rem;
            flex-wrap: wrap;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 1rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-mint);
            border-radius: 50px;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
            border: 1px solid transparent;
        }

        .nav-links a:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
            border-color: rgba(255, 215, 0, 0.2);
        }

        .nav-links a.active {
            color: #0A2E1C;
            background: linear-gradient(135deg, #FFD700 0%, #FFC107 100%);
            font-weight: 700;
            box-shadow: 0 2px 12px rgba(255, 215, 0, 0.3);
            border-color: transparent;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }

        .btn-login {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.5rem 1.25rem;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-white);
            border-radius: 50px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-login:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.5);
            color: var(--accent-gold);
        }

        .btn-signup {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.55rem 1.4rem;
            font-size: 0.9rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, #FFD700 0%, #FFC107 100%);
            border-radius: 50px;
            transition: all var(--transition-base);
            white-space: nowrap;
            box-shadow: 0 4px 16px rgba(255, 215, 0, 0.3);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 215, 0, 0.45);
            background: linear-gradient(135deg, #FFE033 0%, #FFC107 100%);
        }

        .btn-signup:active,
        .btn-login:active {
            transform: scale(0.97);
        }

        .mobile-toggle {
            display: none;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            font-size: 1.4rem;
            color: var(--text-white);
            border-radius: 8px;
            border: 1px solid var(--border-soft);
            background: rgba(255, 255, 255, 0.05);
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .mobile-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--accent-gold);
        }

        /* ========== PAGE HERO ========== */
        .page-hero {
            position: relative;
            padding: 8.5rem 0 4.5rem;
            background: linear-gradient(160deg, var(--bg-deep) 0%, var(--bg-primary) 40%, var(--bg-secondary) 100%);
            overflow: hidden;
            border-bottom: 1px solid var(--border-soft);
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -15%;
            width: 550px;
            height: 550px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -25%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(211, 47, 47, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-hero .container {
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.4rem 1.1rem;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid rgba(255, 215, 0, 0.3);
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-gold);
            margin-bottom: 1.25rem;
            letter-spacing: 0.02em;
        }

        .page-hero h1 {
            font-size: clamp(2.2rem, 5vw, 3.8rem);
            font-weight: 800;
            line-height: 1.15;
            margin-bottom: 1.25rem;
            color: var(--text-white);
            letter-spacing: -0.02em;
            max-width: 800px;
        }

        .page-hero h1 .highlight {
            background: linear-gradient(135deg, #FFD700 0%, #FFC107 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            font-weight: 400;
            color: var(--text-mint);
            max-width: 650px;
            line-height: 1.65;
            margin-bottom: 2rem;
        }

        .hero-meta {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            flex-wrap: wrap;
        }

        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
        }

        .hero-meta-item i {
            color: var(--accent-gold);
            font-size: 1.1rem;
        }

        /* ========== GENERIC SECTION ========== */
        .section {
            padding: 5rem 0;
            position: relative;
        }

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

        .section-header {
            margin-bottom: 3rem;
            max-width: 750px;
        }

        .section-header.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-gold);
            margin-bottom: 0.75rem;
        }

        .section-tag::before {
            content: '';
            display: inline-block;
            width: 24px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
        }

        .section-header h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 800;
            line-height: 1.2;
            color: var(--text-white);
            letter-spacing: -0.01em;
            margin-bottom: 1rem;
        }

        .section-header p {
            font-size: 1.05rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ========== METRICS / DATA BOARD ========== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
            margin-top: 2rem;
        }

        .metric-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            padding: 1.75rem 1.5rem;
            text-align: left;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .metric-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-red));
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .metric-card:hover {
            border-color: rgba(255, 215, 0, 0.3);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }

        .metric-card:hover::after {
            opacity: 1;
        }

        .metric-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
            font-size: 1.3rem;
            margin-bottom: 1rem;
        }

        .metric-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.1;
            margin-bottom: 0.35rem;
            letter-spacing: -0.02em;
        }

        .metric-label {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
            line-height: 1.4;
        }

        /* ========== SERVICE MATRIX ========== */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
            margin-top: 2.5rem;
        }

        .service-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 2rem 1.75rem;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(160deg, rgba(255, 215, 0, 0.05) 0%, transparent 50%);
            pointer-events: none;
        }

        .service-card:hover {
            border-color: rgba(255, 215, 0, 0.35);
            box-shadow: var(--shadow-glow);
            transform: translateY(-5px);
        }

        .service-card .service-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(255, 215, 0, 0.15) 0%, rgba(211, 47, 47, 0.15) 100%);
            color: var(--accent-gold);
            font-size: 1.6rem;
            margin-bottom: 1.25rem;
            border: 1px solid rgba(255, 215, 0, 0.25);
        }

        .service-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.75rem;
            letter-spacing: -0.01em;
        }

        .service-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 1.25rem;
        }

        .service-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .service-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.3rem 0.8rem;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-soft);
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 500;
            color: var(--text-mint);
        }

        .service-tag i {
            color: var(--accent-gold);
            font-size: 0.7rem;
        }

        /* ========== COMPARISON ========== */
        .comparison-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin-top: 2.5rem;
            align-items: stretch;
        }

        .comparison-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 2rem;
            transition: all var(--transition-base);
        }

        .comparison-card.highlight-card {
            border-color: rgba(255, 215, 0, 0.4);
            background: rgba(255, 215, 0, 0.05);
            box-shadow: var(--shadow-glow);
        }

        .comparison-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.65rem;
        }

        .comparison-card h3 i {
            color: var(--accent-gold);
        }

        .comparison-list {
            display: flex;
            flex-direction: column;
            gap: 0.85rem;
        }

        .comparison-item {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
            font-size: 0.95rem;
            color: var(--text-mint);
            line-height: 1.5;
        }

        .comparison-item i {
            color: var(--accent-gold);
            margin-top: 0.2rem;
            flex-shrink: 0;
        }

        .comparison-item i.fa-xmark {
            color: var(--accent-red);
        }

        /* ========== STEPS / PROCESS ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
            margin-top: 2.5rem;
        }

        .step-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            padding: 1.75rem 1.5rem;
            position: relative;
            transition: all var(--transition-base);
        }

        .step-card:hover {
            border-color: rgba(255, 215, 0, 0.3);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card);
        }

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, #FFD700 0%, #D32F2F 100%);
            color: #0A2E1C;
            font-weight: 800;
            font-size: 1.1rem;
            margin-bottom: 1rem;
        }

        .step-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.5rem;
        }

        .step-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.55;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 2.5rem auto 0;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .faq-item {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: rgba(255, 215, 0, 0.25);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.25rem 1.5rem;
            cursor: pointer;
            user-select: none;
            transition: background var(--transition-fast);
        }

        .faq-question:hover {
            background: rgba(255, 255, 255, 0.04);
        }

        .faq-question h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-white);
            line-height: 1.4;
            flex: 1;
        }

        .faq-toggle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
            font-size: 0.9rem;
            transition: all var(--transition-base);
            flex-shrink: 0;
        }

        .faq-item.active .faq-toggle {
            transform: rotate(45deg);
            background: rgba(255, 215, 0, 0.2);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 1.5rem;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 1.5rem 1.5rem;
        }

        .faq-answer p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            padding: 5rem 0;
            background: linear-gradient(160deg, var(--bg-deep) 0%, var(--bg-primary) 100%);
            border-top: 1px solid var(--border-soft);
            border-bottom: 1px solid var(--border-soft);
        }

        .cta-wrapper {
            background: linear-gradient(135deg, rgba(255, 215, 0, 0.08) 0%, rgba(211, 47, 47, 0.08) 100%);
            border: 1px solid rgba(255, 215, 0, 0.3);
            border-radius: var(--radius-xl);
            padding: 3.5rem 2.5rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-wrapper::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-wrapper h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.01em;
            margin-bottom: 1rem;
            position: relative;
            z-index: 1;
        }

        .cta-wrapper p {
            font-size: 1.1rem;
            color: var(--text-mint);
            max-width: 600px;
            margin: 0 auto 2rem;
            line-height: 1.7;
            position: relative;
            z-index: 1;
        }

        .cta-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.85rem 2rem;
            font-size: 1rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, #FFD700 0%, #FFC107 100%);
            border-radius: 50px;
            transition: all var(--transition-base);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.35);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(255, 215, 0, 0.5);
            background: linear-gradient(135deg, #FFE033 0%, #FFC107 100%);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.85rem 2rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 50px;
            transition: all var(--transition-base);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: rgba(255, 215, 0, 0.5);
            color: var(--accent-gold);
        }

        /* ========== FAB ========== */
        .fab-support {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 999;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, #1A1A1A 0%, #0A2E1C 100%);
            border: 2px solid var(--accent-gold);
            color: var(--accent-gold);
            font-size: 1.4rem;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            transition: all var(--transition-base);
            opacity: 0.7;
            animation: fabFloat 3s ease-in-out infinite;
            text-decoration: none;
        }

        .fab-support:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 30px rgba(255, 215, 0, 0.5);
        }

        .fab-support:active {
            transform: scale(0.95) translateY(2px);
        }

        .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: var(--accent-red);
            border-radius: 50%;
            border: 2px solid #1A1A1A;
            animation: fabPulse 2s ease-in-out infinite;
        }

        @keyframes fabFloat {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-8px);
            }
        }

        @keyframes fabPulse {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.4;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid rgba(255, 215, 0, 0.2);
            padding: 4rem 0 2rem;
            position: relative;
        }

        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 3rem;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            margin-bottom: 1rem;
        }

        .footer-brand .logo-icon {
            width: 36px;
            height: 36px;
            font-size: 1rem;
        }

        .footer-brand span:last-child {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--text-white);
        }

        .footer-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 400px;
        }

        .footer-heading {
            font-size: 1rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 1.25rem;
            letter-spacing: 0.02em;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .footer-links a {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }

        .footer-links a:hover {
            color: var(--accent-gold);
            transform: translateX(4px);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            flex-wrap: wrap;
            padding-top: 2rem;
            border-top: 1px solid var(--border-soft);
        }

        .footer-bottom span {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .footer-badges {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-wrap: wrap;
        }

        .badge-18 {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--accent-red);
            color: #fff;
            font-weight: 800;
            font-size: 0.85rem;
            border: 2px solid rgba(255, 255, 255, 0.3);
        }

        .badge-license {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.35rem 0.9rem;
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid rgba(255, 215, 0, 0.3);
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--accent-gold);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .comparison-wrapper {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 70px;
                left: 0;
                right: 0;
                background: rgba(6, 35, 21, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                align-items: stretch;
                padding: 1rem 1.5rem;
                gap: 0.5rem;
                border-bottom: 1px solid var(--border-soft);
                transform: translateY(-150%);
                transition: transform var(--transition-slow);
                z-index: 999;
                max-height: calc(100vh - 70px);
                overflow-y: auto;
            }
            .nav-links.open {
                transform: translateY(0);
            }
            .nav-links a {
                padding: 0.85rem 1rem;
                font-size: 1rem;
                border-radius: 10px;
                justify-content: flex-start;
            }
            .nav-links a.active {
                background: rgba(255, 215, 0, 0.15);
                color: var(--accent-gold);
                border: 1px solid rgba(255, 215, 0, 0.3);
                box-shadow: none;
                font-weight: 600;
            }
            .mobile-toggle {
                display: inline-flex;
            }
            .page-hero {
                padding: 7rem 0 3.5rem;
            }
            .section {
                padding: 3.5rem 0;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .service-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
            .cta-wrapper {
                padding: 2.5rem 1.5rem;
            }
            .hero-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.75rem;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                padding: 0.7rem 0;
                min-height: 60px;
            }
            .logo-text {
                font-size: 1rem;
            }
            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }
            .btn-login,
            .btn-signup {
                padding: 0.4rem 0.9rem;
                font-size: 0.8rem;
            }
            .nav-actions {
                gap: 0.5rem;
            }
            .page-hero h1 {
                font-size: 1.9rem;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .metric-value {
                font-size: 1.8rem;
            }
            .fab-support {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                left: 0.75rem;
                bottom: 5.5rem;
            }
        }

/* roulang page: category2 */
:root {
            --primary-deep: #0A2E1C;
            --primary-forest: #123E25;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: #A8C5BB;
            --border-gold: rgba(255, 215, 0, 0.35);
            --shadow-gold: rgba(255, 215, 0, 0.15);
            --radius-sm: 10px;
            --radius-md: 18px;
            --radius-lg: 28px;
            --radius-xl: 36px;
            --space-xs: 8px;
            --space-sm: 16px;
            --space-md: 28px;
            --space-lg: 48px;
            --space-xl: 72px;
            --font-body: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-body);
            line-height: 1.6;
            background: var(--primary-deep);
            color: var(--text-white);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: var(--text-mint);
            text-decoration: none;
        }

        button,
        .button {
            cursor: pointer;
            border: none;
            outline: none;
            font-family: var(--font-body);
            transition: var(--transition);
        }

        button:focus-visible,
        a:focus-visible,
        .button:focus-visible {
            outline: 3px solid var(--accent-gold);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--space-sm);
        }

        /* ===== HEADER ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(10, 46, 28, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-gold);
            transition: var(--transition);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--space-md);
            padding: 12px 0;
            flex-wrap: nowrap;
        }

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

        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--accent-gold), #B8860B);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary-deep);
            box-shadow: 0 0 20px var(--shadow-gold);
        }

        .logo-text {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--accent-gold);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 1;
            min-width: 0;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

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

        .nav-links a {
            color: var(--text-mint);
            padding: 8px 14px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 500;
            white-space: nowrap;
            transition: var(--transition);
            position: relative;
        }

        .nav-links a:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }

        .nav-links a.active {
            color: var(--primary-deep);
            background: var(--accent-gold);
            font-weight: 700;
            box-shadow: 0 4px 16px var(--shadow-gold);
        }

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

        .btn-login {
            background: transparent;
            color: var(--text-mint);
            padding: 9px 18px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 600;
            border: 1px solid var(--border-gold);
            transition: var(--transition);
        }

        .btn-login:hover {
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
            border-color: var(--accent-gold);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-gold), #DAA520);
            color: var(--primary-deep);
            padding: 9px 22px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 700;
            box-shadow: 0 4px 18px var(--shadow-gold);
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-signup:hover {
            background: linear-gradient(135deg, #FFE44D, var(--accent-gold));
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 215, 0, 0.3);
            color: var(--primary-deep);
        }

        /* ===== HERO ===== */
        .hero-section {
            position: relative;
            padding: 110px 0 70px;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            background-attachment: fixed;
            min-height: 480px;
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 46, 28, 0.92) 0%, rgba(18, 62, 37, 0.85) 50%, rgba(10, 46, 28, 0.95) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 215, 0, 0.15);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            padding: 8px 16px;
            border-radius: 24px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: var(--space-sm);
            letter-spacing: 0.5px;
        }

        .hero-badge i {
            animation: pulse-gold 1.8s ease-in-out infinite;
        }

        @keyframes pulse-gold {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.5; }
        }

        .hero-title {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-white);
            margin: 0 0 var(--space-sm);
            letter-spacing: -0.5px;
        }

        .hero-title .highlight {
            color: var(--accent-gold);
            text-shadow: 0 0 30px rgba(255, 215, 0, 0.4);
        }

        .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-mint);
            line-height: 1.7;
            margin: 0 0 var(--space-md);
            max-width: 600px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            flex-wrap: wrap;
        }

        .btn-primary-hero {
            background: linear-gradient(135deg, var(--accent-red), #B71C1C);
            color: #fff;
            padding: 14px 30px;
            border-radius: 28px;
            font-size: 1rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            box-shadow: 0 8px 28px rgba(211, 47, 47, 0.4);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }

        .btn-primary-hero:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(211, 47, 47, 0.55);
            color: #fff;
            background: linear-gradient(135deg, #E53935, #C62828);
        }

        .btn-secondary-hero {
            background: transparent;
            color: var(--text-mint);
            padding: 14px 26px;
            border-radius: 28px;
            font-size: 1rem;
            font-weight: 600;
            border: 1px solid var(--border-gold);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }

        .btn-secondary-hero:hover {
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
            border-color: var(--accent-gold);
        }

        /* ===== COUPON WALL ===== */
        .coupon-wall {
            position: relative;
            z-index: 3;
            margin-top: -30px;
            padding-bottom: var(--space-lg);
        }

        .coupon-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: var(--space-md);
            align-items: stretch;
        }

        .coupon-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: var(--space-md);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
            backdrop-filter: blur(8px);
        }

        .coupon-card:hover {
            border-color: var(--accent-gold);
            box-shadow: 0 12px 36px var(--shadow-gold);
            transform: translateY(-4px);
        }

        .coupon-card.featured {
            background: linear-gradient(135deg, rgba(255, 215, 0, 0.1), rgba(211, 47, 47, 0.08));
            border-color: var(--accent-gold);
        }

        .coupon-tag {
            display: inline-block;
            background: var(--accent-red);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 16px;
            letter-spacing: 0.5px;
            margin-bottom: var(--space-xs);
            text-transform: uppercase;
        }

        .coupon-card.featured .coupon-tag {
            background: var(--accent-gold);
            color: var(--primary-deep);
        }

        .coupon-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin: 4px 0;
            line-height: 1.2;
        }

        .coupon-label {
            font-size: 0.95rem;
            color: var(--text-mint);
            margin-bottom: var(--space-sm);
        }

        .coupon-code-box {
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(10, 46, 28, 0.7);
            border: 1px dashed var(--border-gold);
            border-radius: 10px;
            padding: 10px 14px;
            margin-bottom: var(--space-xs);
        }

        .coupon-code-box span {
            font-family: 'Courier New', monospace;
            font-weight: 700;
            color: var(--accent-gold);
            font-size: 1rem;
            letter-spacing: 1px;
            flex: 1;
        }

        .btn-copy-code {
            background: rgba(255, 215, 0, 0.15);
            color: var(--accent-gold);
            padding: 6px 12px;
            border-radius: 8px;
            font-size: 0.8rem;
            font-weight: 600;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-copy-code:hover {
            background: rgba(255, 215, 0, 0.3);
            color: var(--text-white);
        }

        .btn-claim-now {
            display: block;
            width: 100%;
            background: linear-gradient(135deg, var(--accent-gold), #DAA520);
            color: var(--primary-deep);
            padding: 12px;
            border-radius: 12px;
            font-weight: 700;
            font-size: 0.95rem;
            text-align: center;
            transition: var(--transition);
            margin-top: var(--space-xs);
        }

        .btn-claim-now:hover {
            background: linear-gradient(135deg, #FFE44D, var(--accent-gold));
            transform: translateY(-2px);
            color: var(--primary-deep);
            box-shadow: 0 6px 20px rgba(255, 215, 0, 0.3);
        }

        /* ===== METRICS ===== */
        .metrics-section {
            padding: var(--space-lg) 0;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--space-sm);
        }

        .metric-item {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 215, 0, 0.15);
            border-radius: var(--radius-sm);
            padding: var(--space-md);
            text-align: center;
            transition: var(--transition);
        }

        .metric-item:hover {
            border-color: var(--border-gold);
            background: rgba(255, 215, 0, 0.05);
        }

        .metric-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.2;
        }

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

        /* ===== SERVICE MATRIX ===== */
        .service-section {
            padding: var(--space-lg) 0;
        }

        .section-heading {
            margin-bottom: var(--space-md);
            max-width: 700px;
        }

        .section-title {
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--text-white);
            margin: 0 0 8px;
            letter-spacing: -0.3px;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-md);
        }

        .service-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 215, 0, 0.12);
            border-radius: var(--radius-md);
            padding: var(--space-md);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            border-color: var(--border-gold);
            background: rgba(255, 215, 0, 0.05);
            transform: translateY(-3px);
            box-shadow: 0 10px 28px rgba(0, 0, 0, 0.3);
        }

        .service-icon {
            width: 52px;
            height: 52px;
            background: linear-gradient(135deg, rgba(255, 215, 0, 0.2), rgba(255, 215, 0, 0.05));
            border: 1px solid var(--border-gold);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--accent-gold);
            margin-bottom: var(--space-sm);
        }

        .service-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-white);
            margin: 0 0 6px;
        }

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

        /* ===== COMPARISON ===== */
        .comparison-section {
            padding: var(--space-lg) 0;
            background: rgba(0, 0, 0, 0.2);
        }

        .comparison-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--space-md);
            align-items: stretch;
        }

        .comparison-panel {
            border-radius: var(--radius-md);
            padding: var(--space-md);
            border: 1px solid rgba(255, 255, 255, 0.08);
            background: rgba(255, 255, 255, 0.02);
        }

        .comparison-panel.best {
            border-color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.05);
            position: relative;
        }

        .comparison-panel.best::before {
            content: '★ TỐT NHẤT';
            position: absolute;
            top: -12px;
            right: var(--space-sm);
            background: var(--accent-gold);
            color: var(--primary-deep);
            font-size: 0.7rem;
            font-weight: 800;
            padding: 4px 12px;
            border-radius: 16px;
            letter-spacing: 0.5px;
        }

        .comparison-panel h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-white);
            margin: 0 0 var(--space-sm);
        }

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

        .comparison-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 0.9rem;
            color: var(--text-mint);
            line-height: 1.6;
        }

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

        .comparison-list li i {
            color: var(--accent-gold);
            margin-top: 4px;
            flex-shrink: 0;
        }

        .comparison-list li i.fa-times-circle {
            color: var(--accent-red);
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: var(--space-lg) 0;
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 215, 0, 0.1);
            border-radius: var(--radius-sm);
            margin-bottom: var(--space-xs);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--border-gold);
        }

        .faq-question {
            width: 100%;
            background: transparent;
            color: var(--text-white);
            padding: 16px 20px;
            font-size: 1rem;
            font-weight: 600;
            text-align: left;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--space-sm);
            transition: var(--transition);
            cursor: pointer;
        }

        .faq-question:hover {
            color: var(--accent-gold);
        }

        .faq-question .fa-chevron-down {
            transition: transform 0.3s ease;
            color: var(--accent-gold);
            flex-shrink: 0;
        }

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

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

        .faq-item.active .faq-answer {
            max-height: 300px;
        }

        .faq-answer p {
            padding: 0 20px 16px;
            margin: 0;
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: var(--space-lg) 0;
            background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            position: relative;
            border-radius: var(--radius-lg);
            margin-bottom: var(--space-lg);
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 46, 28, 0.93), rgba(18, 62, 37, 0.88));
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: var(--space-lg) var(--space-md);
        }

        .cta-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            margin: 0 0 var(--space-xs);
        }

        .cta-desc {
            font-size: 1.05rem;
            color: var(--text-mint);
            margin: 0 0 var(--space-md);
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-buttons {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: var(--space-sm);
            flex-wrap: wrap;
        }

        /* ===== FAB ===== */
        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, #1C1C1E, #0A0A0A);
            border: 3px solid var(--accent-gold);
            color: var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            transition: var(--transition);
            cursor: pointer;
            animation: float-fab 2.5s ease-in-out infinite;
            position: fixed;
        }

        @keyframes float-fab {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }

        .fab-left:hover {
            transform: scale(1.1);
            box-shadow: 0 8px 32px rgba(255, 215, 0, 0.5);
            animation-play-state: paused;
        }

        .fab-left:active {
            transform: scale(0.95);
        }

        .fab-notification {
            position: absolute;
            top: -3px;
            right: -3px;
            width: 14px;
            height: 14px;
            background: #FF0000;
            border: 2px solid #fff;
            border-radius: 50%;
            animation: blink-dot 1.5s ease-in-out infinite;
        }

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

        /* ===== FOOTER ===== */
        .site-footer {
            background: #072116;
            border-top: 1px solid var(--border-gold);
            padding: var(--space-lg) 0 var(--space-sm);
            margin-top: var(--space-lg);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: var(--space-lg);
            margin-bottom: var(--space-lg);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: var(--space-xs);
        }

        .footer-brand .logo-icon {
            width: 36px;
            height: 36px;
            font-size: 16px;
        }

        .footer-brand span {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-gold);
        }

        .footer-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
            max-width: 400px;
        }

        .footer-heading {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin: 0 0 var(--space-xs);
        }

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

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

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--space-sm);
            flex-wrap: wrap;
            padding-top: var(--space-sm);
            border-top: 1px solid rgba(255, 215, 0, 0.1);
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .footer-badges {
            display: flex;
            align-items: center;
            gap: var(--space-xs);
            flex-wrap: wrap;
        }

        .badge-18 {
            background: var(--accent-red);
            color: #fff;
            padding: 4px 10px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 0.8rem;
        }

        .badge-license {
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            padding: 4px 12px;
            border-radius: 8px;
            font-size: 0.8rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2.2rem;
            }
            .coupon-grid {
                grid-template-columns: 1fr 1fr;
            }
            .coupon-card.featured {
                grid-column: span 2;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
                gap: 8px;
            }
            .nav-links {
                order: 3;
                width: 100%;
                justify-content: flex-start;
                padding: 4px 0;
                gap: 4px;
            }
            .nav-links a {
                padding: 6px 12px;
                font-size: 0.82rem;
            }
            .hero-section {
                padding: 140px 0 50px;
                min-height: 380px;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-subtitle {
                font-size: 0.95rem;
            }
            .coupon-grid {
                grid-template-columns: 1fr;
            }
            .coupon-card.featured {
                grid-column: span 1;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }
            .metric-number {
                font-size: 1.6rem;
            }
            .service-grid {
                grid-template-columns: 1fr;
            }
            .comparison-wrapper {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .cta-title {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--space-md);
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .header-actions {
                gap: 6px;
            }
            .btn-login {
                padding: 7px 12px;
                font-size: 0.8rem;
            }
            .btn-signup {
                padding: 7px 14px;
                font-size: 0.8rem;
            }
            .logo-text {
                font-size: 0.95rem;
            }
            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 16px;
            }
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-badge {
                font-size: 0.75rem;
                padding: 6px 12px;
            }
            .btn-primary-hero,
            .btn-secondary-hero {
                padding: 12px 20px;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 6px;
            }
            .metric-item {
                padding: var(--space-sm);
            }
            .metric-number {
                font-size: 1.4rem;
            }
            .coupon-value {
                font-size: 1.6rem;
            }
            .fab-left {
                width: 48px;
                height: 48px;
                font-size: 18px;
                left: 12px;
                bottom: 80px;
            }
        }