/* roulang page: index */
:root {
            --bg-primary: #121212;
            --bg-secondary: #1C1C1E;
            --bg-elevated: #242428;
            --bg-felt: #0E2A1D;
            --bg-felt-deep: #071B12;
            --accent-gold: #C5A059;
            --accent-amber: #FFBF00;
            --accent-bright-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-primary: #F5F5F7;
            --text-secondary: #D4AC0D;
            --text-muted: #9E9E9E;
            --text-on-dark: #FFFFFF;
            --border-gold: rgba(197, 160, 89, 0.45);
            --border-gold-strong: rgba(255, 215, 0, 0.75);
            --border-subtle: rgba(255, 255, 255, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.6);
            --shadow-gold: 0 4px 20px rgba(197, 160, 89, 0.3);
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.5);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.22, 1, 0.36, 1);
            --font-body: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            --font-heading: 'Georgia', 'Times New Roman', serif;
            --container-max: 1200px;
            --section-space: 72px;
            --section-space-mobile: 48px;
            --nav-height: 76px;
            --nav-height-mobile: 64px;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.65;
            color: var(--text-primary);
            background: var(--bg-primary);
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        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; }
        button { cursor: pointer; border: none; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 0.5em;
        }
        h1 { font-size: clamp(2rem, 4.2vw, 3.2rem); letter-spacing: -0.01em; }
        h2 { font-size: clamp(1.5rem, 2.8vw, 2.2rem); }
        h3 { font-size: clamp(1.1rem, 1.8vw, 1.5rem); font-family: var(--font-body); font-weight: 600; }
        p { margin-bottom: 1rem; color: var(--text-primary); opacity: 0.88; }
        .container { max-width: var(--container-max); margin: 0 auto; padding: 0 20px; }
        .section { padding: var(--section-space) 0; position: relative; }
        .section--alt { background: var(--bg-secondary); }
        .section--felt { background: radial-gradient(ellipse at center, var(--bg-felt) 0%, var(--bg-felt-deep) 100%); border-top: 1px solid var(--border-subtle); border-bottom: 1px solid var(--border-subtle); }
        .section--dark { background: var(--bg-primary); }
        .section-label {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.14em;
            color: var(--accent-amber);
            background: rgba(255, 191, 0, 0.1);
            border: 1px solid rgba(255, 191, 0, 0.3);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            margin-bottom: 16px;
        }
        .section-title { font-family: var(--font-heading); font-size: clamp(1.6rem, 3vw, 2.4rem); margin-bottom: 8px; }
        .section-subtitle { font-size: 1.05rem; color: var(--text-muted); max-width: 680px; margin-bottom: 32px; line-height: 1.6; }
        .section-header { margin-bottom: 40px; }
        .section-header--left { text-align: left; }
        .section-header--center { text-align: center; }
        .section-header--center .section-subtitle { margin-left: auto; margin-right: auto; }
        .divider-gold {
            width: 60px; height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-amber), var(--accent-gold));
            border-radius: 2px;
            margin: 0 0 20px 0;
        }
        .text-gold { color: var(--accent-amber); }
        .text-muted { color: var(--text-muted); }
        .fw-bold { font-weight: 700; }
        .mt-0 { margin-top: 0; } .mb-0 { margin-bottom: 0; }
        .mt-2 { margin-top: 16px; } .mb-2 { margin-bottom: 16px; }
        .mt-3 { margin-top: 24px; } .mb-3 { margin-bottom: 24px; }
        .mt-4 { margin-top: 32px; } .mb-4 { margin-bottom: 32px; }
        .mt-5 { margin-top: 48px; } .mb-5 { margin-bottom: 48px; }

        /* Header / Navigation */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 100;
            height: var(--nav-height);
            display: flex; align-items: center;
            background: rgba(18, 18, 18, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-subtle);
            transition: box-shadow var(--transition-base), background var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
            background: rgba(18, 18, 18, 0.98);
        }
        .header-inner {
            display: flex; align-items: center; justify-content: space-between;
            gap: 20px; width: 100%; max-width: var(--container-max);
            margin: 0 auto; padding: 0 20px;
        }
        .logo {
            display: flex; align-items: center; gap: 10px;
            font-family: var(--font-heading);
            font-size: 1.15rem; font-weight: 700;
            color: var(--accent-bright-gold);
            letter-spacing: -0.01em;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px; height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-bright-gold));
            display: flex; align-items: center; justify-content: center;
            font-size: 0.9rem; color: #121212; font-weight: 700;
            box-shadow: var(--shadow-gold);
            flex-shrink: 0;
        }
        .logo span { color: var(--text-primary); font-size: 0.95rem; }
        .main-nav {
            display: flex; align-items: center; gap: 6px;
            flex: 1; justify-content: center;
        }
        .main-nav a {
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            font-size: 0.9rem; font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .main-nav a:hover { color: var(--accent-bright-gold); background: rgba(255, 191, 0, 0.08); }
        .main-nav a.active { color: var(--accent-bright-gold); background: rgba(255, 191, 0, 0.12); font-weight: 600; border: 1px solid rgba(255, 191, 0, 0.25); }
        .header-actions {
            display: flex; align-items: center; gap: 10px; flex-shrink: 0;
        }
        .btn-login {
            padding: 9px 18px;
            border-radius: var(--radius-pill);
            font-size: 0.85rem; font-weight: 500;
            color: var(--text-primary);
            background: transparent;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
        }
        .btn-login:hover { border-color: var(--border-gold); color: var(--accent-amber); }
        .btn-signup {
            padding: 9px 22px;
            border-radius: var(--radius-pill);
            font-size: 0.85rem; font-weight: 700;
            color: #121212;
            background: linear-gradient(135deg, var(--accent-bright-gold), var(--accent-amber));
            border: none;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
        }
        .btn-signup:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(255, 191, 0, 0.45); }
        .btn-signup:active { transform: translateY(0); box-shadow: var(--shadow-gold); }
        .nav-toggle {
            display: none;
            width: 44px; height: 44px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-subtle);
            color: var(--text-primary);
            font-size: 1.1rem;
            align-items: center; justify-content: center;
            transition: all var(--transition-fast);
        }
        .nav-toggle:hover { border-color: var(--border-gold); color: var(--accent-amber); }
        .mobile-menu {
            display: none;
            position: fixed; top: var(--nav-height); left: 0; right: 0; z-index: 99;
            background: rgba(18, 18, 18, 0.98);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 16px 20px 24px;
            max-height: calc(100vh - var(--nav-height));
            overflow-y: auto;
        }
        .mobile-menu.open { display: block; }
        .mobile-menu a {
            display: block;
            padding: 14px 16px;
            border-radius: var(--radius-md);
            color: var(--text-primary);
            font-size: 1rem;
            font-weight: 500;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            transition: all var(--transition-fast);
        }
        .mobile-menu a:hover { background: rgba(255, 191, 0, 0.08); color: var(--accent-amber); }
        .mobile-menu a.active { color: var(--accent-amber); background: rgba(255, 191, 0, 0.12); }
        .mobile-menu .mobile-actions { display: flex; gap: 10px; margin-top: 16px; }
        .mobile-menu .mobile-actions .btn-login,
        .mobile-menu .mobile-actions .btn-signup { flex: 1; text-align: center; }

        /* Hero */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex; align-items: center;
            padding: calc(var(--nav-height) + 40px) 0 80px 0;
            background: 
                linear-gradient(to bottom, rgba(18, 18, 18, 0.75) 0%, rgba(18, 18, 18, 0.85) 50%, rgba(18, 18, 18, 0.95) 100%),
                url('/assets/images/backpic/back-1.jpg') center / cover no-repeat;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute; inset: 0;
            background: radial-gradient(circle at 30% 50%, rgba(197, 160, 89, 0.12) 0%, transparent 60%),
                        radial-gradient(circle at 70% 30%, rgba(255, 191, 0, 0.08) 0%, transparent 50%);
            pointer-events: none;
        }
        .hero-inner {
            position: relative; z-index: 2;
            width: 100%; max-width: var(--container-max);
            margin: 0 auto; padding: 0 20px;
        }
        .hero-flash-bar {
            display: inline-flex; align-items: center; gap: 10px;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            background: rgba(211, 47, 47, 0.2);
            border: 1px solid rgba(211, 47, 47, 0.5);
            color: #ff6b6b;
            font-size: 0.85rem; font-weight: 600;
            margin-bottom: 28px;
            animation: pulse-flash 2s ease-in-out infinite;
            flex-wrap: wrap;
        }
        @keyframes pulse-flash {
            0%, 100% { box-shadow: 0 0 8px rgba(211, 47, 47, 0.3); }
            50% { box-shadow: 0 0 20px rgba(211, 47, 47, 0.6); }
        }
        .hero-flash-bar .flash-icon { color: #ff6b6b; animation: blink 1s step-end infinite; }
        @keyframes blink { 50% { opacity: 0.3; } }
        .hero-flash-bar .countdown-hero {
            font-weight: 700; color: var(--accent-bright-gold);
            letter-spacing: 0.06em; font-variant-numeric: tabular-nums;
        }
        .hero h1 {
            font-size: clamp(2.1rem, 4.5vw, 3.6rem);
            font-weight: 800;
            line-height: 1.2;
            color: #FFFFFF;
            margin-bottom: 20px;
            max-width: 820px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
        }
        .hero h1 .gold {
            color: var(--accent-bright-gold);
            text-shadow: 0 0 30px rgba(255, 215, 0, 0.4);
        }
        .hero-desc {
            font-size: 1.08rem;
            line-height: 1.7;
            color: var(--text-primary);
            opacity: 0.88;
            max-width: 650px;
            margin-bottom: 32px;
        }
        .hero-ctas {
            display: flex; align-items: center; gap: 14px;
            flex-wrap: wrap; margin-bottom: 36px;
        }
        .btn {
            display: inline-flex; align-items: center; justify-content: center; gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-pill);
            font-size: 0.95rem; font-weight: 700;
            transition: all var(--transition-base);
            text-align: center;
            white-space: nowrap;
        }
        .btn:focus-visible { outline: 2px solid var(--accent-bright-gold); outline-offset: 2px; }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent-bright-gold), var(--accent-amber));
            color: #121212;
            box-shadow: var(--shadow-gold);
        }
        .btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 36px rgba(255, 191, 0, 0.5); }
        .btn-primary:active { transform: translateY(0); }
        .btn-outline {
            background: transparent;
            color: var(--accent-bright-gold);
            border: 2px solid var(--border-gold-strong);
        }
        .btn-outline:hover { background: rgba(255, 215, 0, 0.1); border-color: var(--accent-bright-gold); transform: translateY(-2px); }
        .hero-stats {
            display: flex; gap: 32px; flex-wrap: wrap;
            align-items: center;
            padding-top: 20px;
            border-top: 1px solid var(--border-subtle);
        }
        .hero-stat {
            text-align: left;
        }
        .hero-stat .stat-value {
            font-size: 1.6rem; font-weight: 800;
            color: var(--accent-bright-gold);
            font-family: var(--font-heading);
            line-height: 1.1;
        }
        .hero-stat .stat-label {
            font-size: 0.78rem; color: var(--text-muted);
            text-transform: uppercase; letter-spacing: 0.08em;
            margin-top: 4px;
        }
        .hero-featured-card {
            background: linear-gradient(145deg, #1E1E22 0%, #16161A 100%);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-lg);
            max-width: 400px;
            margin-top: 24px;
        }
        .hero-featured-card .badge-hot {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            background: rgba(211, 47, 47, 0.85);
            color: #FFF;
            font-size: 0.7rem; font-weight: 700;
            text-transform: uppercase; letter-spacing: 0.08em;
            margin-bottom: 12px;
        }
        .hero-featured-card h3 { font-size: 1.2rem; margin-bottom: 8px; }
        .hero-featured-card p { font-size: 0.9rem; opacity: 0.75; margin-bottom: 16px; }
        .hero-featured-card .card-price {
            font-size: 1.4rem; font-weight: 800; color: var(--accent-bright-gold);
            margin-bottom: 16px;
        }
        .hero-featured-card .btn { width: 100%; }

        /* Content Cards & Grid */
        .grid { display: grid; gap: 24px; }
        .grid-2 { grid-template-columns: repeat(2, 1fr); }
        .grid-3 { grid-template-columns: repeat(3, 1fr); }
        .grid-4 { grid-template-columns: repeat(4, 1fr); }
        .card {
            background: var(--bg-elevated);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .card--gold-border {
            border: 1px solid var(--border-gold);
            background: linear-gradient(145deg, #1E1E22 0%, #121215 100%);
        }
        .card--gold-border:hover {
            border-color: var(--border-gold-strong);
            box-shadow: var(--shadow-gold);
        }
        .card--flat {
            background: transparent;
            border: none;
            padding: 16px 0;
        }
        .card--flat:hover { transform: none; box-shadow: none; border-color: transparent; }
        .card-icon {
            width: 54px; height: 54px;
            border-radius: 50%;
            background: rgba(197, 160, 89, 0.15);
            border: 1px solid var(--border-gold);
            display: flex; align-items: center; justify-content: center;
            font-size: 1.3rem; color: var(--accent-amber);
            margin-bottom: 16px;
        }
        .card h3 { font-size: 1.15rem; margin-bottom: 8px; font-family: var(--font-heading); }
        .card p { font-size: 0.92rem; opacity: 0.78; margin-bottom: 0; }
        .card .card-link {
            display: inline-flex; align-items: center; gap: 6px;
            color: var(--accent-amber); font-weight: 600; font-size: 0.9rem;
            margin-top: 12px; transition: all var(--transition-fast);
        }
        .card .card-link:hover { color: var(--accent-bright-gold); gap: 10px; }
        .card-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            font-size: 0.68rem; font-weight: 700;
            text-transform: uppercase; letter-spacing: 0.08em;
            margin-bottom: 12px;
        }
        .card-tag--red { background: rgba(211, 47, 47, 0.18); color: #ff6b6b; border: 1px solid rgba(211, 47, 47, 0.4); }
        .card-tag--gold { background: rgba(255, 191, 0, 0.12); color: var(--accent-amber); border: 1px solid rgba(255, 191, 0, 0.3); }
        .card-tag--green { background: rgba(46, 204, 113, 0.15); color: #2ecc71; border: 1px solid rgba(46, 204, 113, 0.35); }

        /* Numbered list */
        .numbered-list { display: flex; flex-direction: column; gap: 16px; }
        .numbered-item {
            display: flex; align-items: flex-start; gap: 16px;
            padding: 20px 24px;
            background: var(--bg-elevated);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .numbered-item:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-md);
            transform: translateX(6px);
        }
        .numbered-item .num {
            width: 42px; height: 42px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            color: #121212;
            font-weight: 800;
            font-size: 1.1rem;
            display: flex; align-items: center; justify-content: center;
            flex-shrink: 0;
            font-family: var(--font-heading);
        }
        .numbered-item .num.gold-outline {
            background: transparent;
            border: 2px solid var(--border-gold-strong);
            color: var(--accent-bright-gold);
        }
        .numbered-item .num-content h3 { font-size: 1.05rem; margin-bottom: 4px; font-family: var(--font-body); font-weight: 600; }
        .numbered-item .num-content p { font-size: 0.88rem; opacity: 0.75; margin-bottom: 0; }
        .numbered-item .num-content .item-tag {
            display: inline-block;
            font-size: 0.7rem; font-weight: 600;
            color: var(--accent-amber);
            margin-top: 6px;
        }

        /* Timeline */
        .timeline { display: flex; flex-direction: column; gap: 0; position: relative; padding-left: 28px; }
        .timeline::before {
            content: '';
            position: absolute; left: 9px; top: 8px; bottom: 8px;
            width: 2px; background: linear-gradient(to bottom, var(--accent-gold), var(--border-subtle));
            border-radius: 1px;
        }
        .timeline-item { position: relative; padding-bottom: 28px; }
        .timeline-item:last-child { padding-bottom: 0; }
        .timeline-item::before {
            content: '';
            position: absolute; left: -28px; top: 6px;
            width: 14px; height: 14px;
            border-radius: 50%;
            background: var(--accent-gold);
            border: 3px solid var(--bg-primary);
            box-shadow: 0 0 10px rgba(197, 160, 89, 0.5);
        }
        .timeline-item h4 { font-family: var(--font-body); font-size: 1rem; font-weight: 700; color: var(--accent-amber); margin-bottom: 4px; }
        .timeline-item p { font-size: 0.9rem; opacity: 0.8; margin-bottom: 0; }
        .timeline-item .time { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 4px; display: block; }

        /* List with icon */
        .check-list { display: flex; flex-direction: column; gap: 10px; }
        .check-list li {
            display: flex; align-items: flex-start; gap: 10px;
            font-size: 0.95rem; line-height: 1.6;
            color: var(--text-primary); opacity: 0.85;
        }
        .check-list li i {
            color: var(--accent-amber);
            font-size: 0.9rem;
            margin-top: 4px;
            flex-shrink: 0;
        }

        /* FAQ */
        .faq-list { display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--bg-elevated);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition-fast);
        }
        .faq-item:hover { border-color: var(--border-gold); }
        .faq-item summary {
            padding: 18px 24px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            color: var(--text-primary);
            display: flex; align-items: center; justify-content: space-between;
            gap: 12px;
            list-style: none;
            transition: color var(--transition-fast);
        }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary:hover { color: var(--accent-amber); }
        .faq-item summary .faq-icon {
            width: 28px; height: 28px;
            border-radius: 50%;
            background: rgba(255, 191, 0, 0.1);
            border: 1px solid rgba(255, 191, 0, 0.3);
            display: flex; align-items: center; justify-content: center;
            font-size: 0.75rem; color: var(--accent-amber);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }
        .faq-item[open] summary .faq-icon { transform: rotate(45deg); }
        .faq-item .faq-answer {
            padding: 0 24px 20px 24px;
            font-size: 0.95rem; line-height: 1.7;
            color: var(--text-muted);
        }
        .faq-item .faq-answer p { margin-bottom: 0; opacity: 0.8; }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #1A1A1E 0%, #121215 50%, #1A1A1E 100%);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .cta-section::before {
            content: '';
            position: absolute; inset: 0;
            background: radial-gradient(circle at center, rgba(255, 191, 0, 0.08) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-section h2 { position: relative; z-index: 1; font-size: clamp(1.5rem, 2.8vw, 2rem); }
        .cta-section p { position: relative; z-index: 1; max-width: 500px; margin: 0 auto 24px; opacity: 0.8; }
        .cta-section .hero-ctas { position: relative; z-index: 1; justify-content: center; }

        /* Trust badges */
        .trust-badges {
            display: flex; gap: 16px; flex-wrap: wrap;
            align-items: center; justify-content: center;
            padding: 20px 0;
        }
        .trust-badge {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-subtle);
            font-size: 0.78rem; font-weight: 600;
            color: var(--text-muted);
            transition: all var(--transition-fast);
        }
        .trust-badge:hover { border-color: var(--border-gold); color: var(--accent-amber); }
        .trust-badge i { color: var(--accent-amber); font-size: 0.85rem; }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: 60px 0 32px 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo { margin-bottom: 12px; }
        .footer-brand p { font-size: 0.88rem; opacity: 0.7; max-width: 320px; }
        .footer-col h4 {
            font-family: var(--font-body);
            font-size: 0.85rem; font-weight: 700;
            text-transform: uppercase; letter-spacing: 0.1em;
            color: var(--accent-amber);
            margin-bottom: 18px;
        }
        .footer-col ul { display: flex; flex-direction: column; gap: 10px; }
        .footer-col ul a {
            font-size: 0.88rem; color: var(--text-muted);
            transition: all var(--transition-fast);
        }
        .footer-col ul a:hover { color: var(--accent-bright-gold); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 24px;
            display: flex; align-items: center; justify-content: space-between;
            flex-wrap: wrap; gap: 16px;
            font-size: 0.82rem; color: var(--text-muted);
        }
        .footer-bottom .copyright { opacity: 0.7; }
        .footer-bottom .footer-links { display: flex; gap: 18px; flex-wrap: wrap; }
        .footer-bottom .footer-links a { color: var(--text-muted); transition: color var(--transition-fast); }
        .footer-bottom .footer-links a:hover { color: var(--accent-amber); }

        /* FAB */
        .fab {
            position: fixed;
            left: 16px; bottom: 96px; z-index: 50;
            display: flex; align-items: center; justify-content: center;
            width: 56px; height: 56px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(8px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), linear-gradient(135deg, var(--accent-amber), #00F0FF);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            box-shadow: 0 0 15px rgba(255, 191, 0, 0.4);
            opacity: 0.6;
            cursor: pointer;
            transition: all var(--transition-base);
            animation: fab-breathe 3.5s ease-in-out infinite;
        }
        @keyframes fab-breathe {
            0%, 100% { opacity: 0.6; box-shadow: 0 0 12px rgba(255, 191, 0, 0.3); }
            50% { opacity: 0.85; box-shadow: 0 0 22px rgba(255, 191, 0, 0.55); }
        }
        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.6);
        }
        .fab:active { transform: scale(0.95); }
        .fab i {
            color: var(--accent-bright-gold);
            font-size: 1.4rem;
            text-shadow: 0 0 10px rgba(255, 215, 0, 0.6);
        }
        .fab .fab-dot {
            position: absolute;
            top: -3px; right: -3px;
            width: 16px; height: 16px;
            border-radius: 50%;
            background: #D32F2F;
            border: 2px solid var(--bg-primary);
            animation: dot-blink 1.5s ease-in-out infinite;
        }
        @keyframes dot-blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.2; }
        }

        /* Section specific */
        .quick-answer-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .quick-answer-item {
            display: flex; align-items: flex-start; gap: 12px;
            padding: 18px 20px;
            background: var(--bg-elevated);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
        }
        .quick-answer-item:hover { border-color: var(--border-gold); }
        .quick-answer-item i {
            color: var(--accent-amber);
            font-size: 1rem;
            margin-top: 4px;
            flex-shrink: 0;
        }
        .quick-answer-item .qa-text h4 { font-family: var(--font-body); font-size: 0.9rem; font-weight: 700; margin-bottom: 4px; }
        .quick-answer-item .qa-text p { font-size: 0.82rem; opacity: 0.75; margin-bottom: 0; }

        .security-banner {
            display: flex; align-items: center; gap: 20px;
            padding: 28px 32px;
            background: linear-gradient(145deg, #1A1A1E, #0F0F11);
            border: 1px solid rgba(46, 204, 113, 0.3);
            border-radius: var(--radius-md);
            margin-bottom: 20px;
            transition: all var(--transition-base);
        }
        .security-banner:hover { border-color: rgba(46, 204, 113, 0.6); box-shadow: 0 4px 20px rgba(46, 204, 113, 0.15); }
        .security-banner .sec-icon {
            width: 64px; height: 64px;
            border-radius: 50%;
            background: rgba(46, 204, 113, 0.1);
            border: 1px solid rgba(46, 204, 113, 0.4);
            display: flex; align-items: center; justify-content: center;
            font-size: 1.5rem; color: #2ecc71;
            flex-shrink: 0;
        }
        .security-banner h4 { font-family: var(--font-body); font-size: 1.05rem; font-weight: 700; margin-bottom: 6px; }
        .security-banner p { font-size: 0.9rem; opacity: 0.75; margin-bottom: 0; }

        .app-download-card {
            display: flex; align-items: center; gap: 24px;
            padding: 28px;
            background: var(--bg-elevated);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .app-download-card:hover { border-color: var(--border-gold); box-shadow: var(--shadow-md); transform: translateY(-3px); }
        .app-download-card .app-icon {
            width: 56px; height: 56px;
            border-radius: 16px;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-bright-gold));
            display: flex; align-items: center; justify-content: center;
            font-size: 1.6rem; color: #121212;
            flex-shrink: 0;
        }
        .app-download-card h4 { font-family: var(--font-body); font-size: 1rem; font-weight: 700; margin-bottom: 4px; }
        .app-download-card p { font-size: 0.82rem; opacity: 0.7; margin-bottom: 0; }
        .app-download-card .btn { margin-top: 12px; font-size: 0.8rem; padding: 8px 18px; }

        .step-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 24px;
        }
        .step-card {
            text-align: left;
            padding: 24px;
            background: var(--bg-elevated);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            position: relative;
            transition: all var(--transition-base);
        }
        .step-card:hover { border-color: var(--border-gold); transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .step-card .step-num {
            font-size: 2.5rem; font-weight: 800;
            font-family: var(--font-heading);
            color: rgba(255, 191, 0, 0.25);
            position: absolute; top: 16px; right: 20px;
            line-height: 1;
        }
        .step-card h4 { font-family: var(--font-body); font-size: 1rem; font-weight: 700; margin-bottom: 8px; padding-right: 40px; }
        .step-card p { font-size: 0.88rem; opacity: 0.75; margin-bottom: 0; }

        /* Article list */
        .article-list { display: flex; flex-direction: column; gap: 14px; }
        .article-list-item {
            display: flex; align-items: flex-start; gap: 16px;
            padding: 16px 18px;
            border-radius: var(--radius-md);
            background: var(--bg-elevated);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-base);
        }
        .article-list-item:hover { border-color: var(--border-gold); box-shadow: var(--shadow-sm); }
        .article-list-item .article-date {
            font-size: 0.72rem; font-weight: 700;
            color: var(--accent-amber);
            text-transform: uppercase; letter-spacing: 0.06em;
            min-width: 65px;
            margin-top: 4px;
        }
        .article-list-item .article-content h4 { font-family: var(--font-body); font-size: 0.95rem; font-weight: 600; margin-bottom: 4px; }
        .article-list-item .article-content p { font-size: 0.82rem; opacity: 0.7; margin-bottom: 0; }
        .article-list-item .article-content .article-cat {
            font-size: 0.72rem; color: var(--accent-amber); font-weight: 600;
        }
        .article-empty {
            padding: 40px;
            text-align: center;
            background: var(--bg-elevated);
            border: 1px dashed var(--border-subtle);
            border-radius: var(--radius-md);
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .grid-4 { grid-template-columns: repeat(2, 1fr); }
            .grid-3 { grid-template-columns: repeat(2, 1fr); }
            .step-row { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            :root { --section-space: var(--section-space-mobile); --nav-height: var(--nav-height-mobile); }
            .main-nav { display: none; }
            .header-actions { display: none; }
            .nav-toggle { display: flex; }
            .hero { min-height: auto; padding: calc(var(--nav-height) + 24px) 0 56px 0; }
            .hero-stats { gap: 20px; }
            .hero-stat .stat-value { font-size: 1.3rem; }
            .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
            .quick-answer-grid { grid-template-columns: 1fr; }
            .step-row { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .cta-section { padding: 32px 20px; }
            .security-banner { flex-direction: column; text-align: center; padding: 20px; }
            .fab { left: 12px; bottom: 80px; width: 48px; height: 48px; }
            .fab i { font-size: 1.1rem; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 14px; }
            .header-inner { padding: 0 14px; }
            .hero-ctas { flex-direction: column; width: 100%; }
            .hero-ctas .btn { width: 100%; }
            .hero-stats { gap: 16px; }
            .hero-stat .stat-value { font-size: 1.1rem; }
            .section-title { font-size: 1.4rem; }
            .numbered-item { padding: 16px; }
            .numbered-item .num { width: 34px; height: 34px; font-size: 0.9rem; }
            .article-list-item { flex-direction: column; gap: 8px; padding: 14px; }
            .article-list-item .article-date { min-width: auto; }
            .cta-section .hero-ctas { flex-direction: column; }
            .cta-section .btn { width: 100%; }
            .app-download-card { flex-direction: column; text-align: center; padding: 20px; }
            .trust-badges { gap: 8px; }
            .trust-badge { font-size: 0.7rem; padding: 6px 10px; }
        }

/* roulang page: article */
:root {
            --bg-primary: #121212;
            --bg-secondary: #1C1C1E;
            --bg-elevated: #242428;
            --bg-felt: #0E2A1D;
            --bg-felt-deep: #071B12;
            --accent-gold: #C5A059;
            --accent-amber: #FFBF00;
            --accent-bright-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-primary: #F5F5F7;
            --text-secondary: #D4AC0D;
            --text-muted: #9E9E9E;
            --text-on-dark: #FFFFFF;
            --border-gold: rgba(197, 160, 89, 0.45);
            --border-gold-strong: rgba(255, 215, 0, 0.75);
            --border-subtle: rgba(255, 255, 255, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.6);
            --shadow-gold: 0 4px 20px rgba(197, 160, 89, 0.3);
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.5);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.22, 1, 0.36, 1);
            --font-body: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            --font-heading: 'Georgia', 'Times New Roman', serif;
            --container-max: 1200px;
            --section-space: 72px;
            --section-space-mobile: 48px;
            --nav-height: 76px;
            --nav-height-mobile: 64px;
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.65;
            color: var(--text-primary);
            background: var(--bg-primary);
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        ul,
        ol {
            padding-left: 1.5rem;
            margin: 1rem 0;
        }

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

        .section {
            padding: var(--section-space) 0;
            position: relative;
        }

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

        .section--felt {
            background: radial-gradient(ellipse at center, var(--bg-felt) 0%, var(--bg-felt-deep) 100%);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .section--dark {
            background: var(--bg-primary);
        }

        .section-label {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.14em;
            color: var(--accent-amber);
            background: rgba(255, 191, 0, 0.1);
            border: 1px solid rgba(255, 191, 0, 0.3);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            margin-bottom: 16px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            margin-bottom: 8px;
            color: var(--text-primary);
            font-weight: 700;
            line-height: 1.25;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 680px;
            margin-bottom: 32px;
            line-height: 1.6;
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-header--left {
            text-align: left;
        }

        .section-header--center {
            text-align: center;
        }

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

        .divider-gold {
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-amber), var(--accent-gold));
            border-radius: 2px;
            margin: 0 0 20px 0;
        }

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

        .text-muted {
            color: var(--text-muted);
        }

        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: var(--nav-height);
            display: flex;
            align-items: center;
            background: rgba(18, 18, 18, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-subtle);
            transition: box-shadow var(--transition-base), background var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
            background: rgba(18, 18, 18, 0.98);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--accent-bright-gold);
            letter-spacing: -0.01em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .logo:hover {
            color: var(--accent-amber);
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-primary);
            font-size: 1rem;
            box-shadow: var(--shadow-gold);
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
        }

        .main-nav a {
            color: var(--text-muted);
            font-size: 0.92rem;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: var(--radius-pill);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .main-nav a:hover {
            color: var(--accent-amber);
            background: rgba(255, 191, 0, 0.08);
        }

        .main-nav a.active {
            color: var(--accent-amber);
            background: rgba(197, 160, 89, 0.15);
            border: 1px solid var(--border-gold);
        }

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

        .btn-login {
            background: transparent;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 9px 18px;
            border-radius: var(--radius-pill);
            transition: all var(--transition-fast);
            border: 1px solid var(--border-subtle);
        }

        .btn-login:hover {
            border-color: var(--accent-amber);
            color: var(--accent-amber);
            background: rgba(255, 191, 0, 0.06);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            color: var(--bg-primary);
            font-weight: 700;
            font-size: 0.9rem;
            padding: 9px 18px;
            border-radius: var(--radius-pill);
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-gold);
        }

        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 24px rgba(197, 160, 89, 0.45);
            color: #000;
        }

        .nav-toggle {
            display: none;
            color: var(--text-primary);
            font-size: 1.4rem;
            padding: 8px;
            cursor: pointer;
            background: transparent;
            border: none;
        }

        /* Article page specific */
        .article-main {
            padding-top: calc(var(--nav-height) + 32px);
            padding-bottom: var(--section-space);
            min-height: 60vh;
        }

        .article-container {
            max-width: 880px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 24px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-subtle);
        }

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

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

        .breadcrumb .separator {
            font-size: 0.7rem;
            color: var(--accent-amber);
        }

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

        .article-header {
            margin-bottom: 32px;
        }

        .article-title {
            font-family: var(--font-heading);
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.2;
            margin-bottom: 16px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .article-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta .meta-item i {
            color: var(--accent-amber);
            font-size: 0.8rem;
        }

        .article-meta .category-tag {
            background: rgba(255, 191, 0, 0.12);
            color: var(--accent-amber);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 0.78rem;
            border: 1px solid rgba(255, 191, 0, 0.25);
        }

        .article-featured-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-bottom: 32px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-subtle);
        }

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

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

        .article-body h2 {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--accent-bright-gold);
            margin: 40px 0 16px;
            line-height: 1.3;
        }

        .article-body h3 {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 32px 0 12px;
            line-height: 1.35;
        }

        .article-body h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-amber);
            margin: 24px 0 10px;
        }

        .article-body p {
            margin-bottom: 16px;
        }

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

        .article-body a {
            color: var(--accent-amber);
            border-bottom: 1px dashed var(--border-gold);
            transition: border-color var(--transition-fast);
        }

        .article-body a:hover {
            border-bottom-color: var(--accent-bright-gold);
            color: var(--accent-bright-gold);
        }

        .article-body ul,
        .article-body ol {
            margin: 16px 0;
            padding-left: 1.5rem;
        }

        .article-body li {
            margin-bottom: 8px;
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-subtle);
        }

        .article-body blockquote {
            background: rgba(197, 160, 89, 0.08);
            border-left: 4px solid var(--accent-gold);
            padding: 16px 20px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin: 24px 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 0.95rem;
        }

        .article-body table th {
            background: var(--bg-felt);
            color: var(--accent-amber);
            font-weight: 700;
            padding: 12px 16px;
            text-align: left;
            border: 1px solid var(--border-subtle);
        }

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

        .article-body table tr:nth-child(even) td {
            background: rgba(255, 255, 255, 0.03);
        }

        .article-empty {
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
        }

        .article-empty i {
            font-size: 3rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            display: block;
        }

        .article-empty p {
            font-size: 1.2rem;
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .article-empty .btn-back {
            display: inline-block;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            color: var(--bg-primary);
            font-weight: 700;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-gold);
        }

        .article-empty .btn-back:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(197, 160, 89, 0.5);
            color: #000;
        }

        /* Article bottom CTA */
        .article-cta-box {
            background: linear-gradient(135deg, var(--bg-felt) 0%, var(--bg-felt-deep) 100%);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            margin-top: 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-md);
        }

        .article-cta-box .cta-info h3 {
            font-family: var(--font-heading);
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--accent-bright-gold);
            margin-bottom: 8px;
        }

        .article-cta-box .cta-info p {
            color: var(--text-muted);
            margin: 0;
            font-size: 0.95rem;
        }

        .article-cta-box .btn-primary {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            color: var(--bg-primary);
            font-weight: 700;
            font-size: 1rem;
            padding: 12px 24px;
            border-radius: var(--radius-pill);
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-gold);
            white-space: nowrap;
        }

        .article-cta-box .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(197, 160, 89, 0.5);
            color: #000;
        }

        /* Related articles */
        .related-section {
            background: var(--bg-secondary);
            padding: 48px 0;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
            margin-top: 24px;
        }

        .related-card {
            background: var(--bg-elevated);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

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

        .related-card .card-image {
            height: 160px;
            overflow: hidden;
            position: relative;
        }

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

        .related-card:hover .card-image img {
            transform: scale(1.05);
        }

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

        .related-card .card-category {
            font-size: 0.72rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-amber);
            margin-bottom: 8px;
        }

        .related-card .card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .related-card .card-excerpt {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
        }

        /* FAQ */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-elevated);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

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

        .faq-item.active {
            border-color: var(--border-gold-strong);
            box-shadow: var(--shadow-gold);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 20px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            border: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition-fast);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(197, 160, 89, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-amber);
            font-size: 0.75rem;
            transition: transform var(--transition-base);
        }

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

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

        .faq-item.active .faq-answer {
            max-height: 400px;
        }

        .faq-answer-inner {
            padding: 0 20px 18px;
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-primary);
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 24px;
        }

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

        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 12px 0 0;
        }

        .footer-col h4 {
            font-size: 0.85rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-amber);
            margin-bottom: 16px;
        }

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

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

        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }

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

        .footer-col ul li a i {
            margin-right: 6px;
            color: var(--accent-amber);
            font-size: 0.75rem;
        }

        .trust-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .trust-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(197, 160, 89, 0.1);
            border: 1px solid var(--border-gold);
            color: var(--accent-amber);
            font-size: 0.72rem;
            font-weight: 700;
            padding: 6px 12px;
            border-radius: var(--radius-pill);
            white-space: nowrap;
        }

        .trust-badge i {
            font-size: 0.7rem;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid var(--border-subtle);
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .footer-bottom p {
            margin: 4px 0;
        }

        /* FAB */
        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(18, 18, 18, 0.85);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 2px solid var(--accent-amber);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-bright-gold);
            font-size: 1.2rem;
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: 0 0 15px rgba(255, 191, 0, 0.4);
            opacity: 0.7;
            animation: fabPulse 3s ease-in-out infinite;
        }

        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 25px rgba(255, 191, 0, 0.6);
        }

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

        .fab-left .fab-notification {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            background: var(--accent-red);
            border-radius: 50%;
            border: 2px solid var(--bg-primary);
            animation: blinkDot 1.5s ease-in-out infinite;
        }

        @keyframes fabPulse {
            0%, 100% { box-shadow: 0 0 15px rgba(255, 191, 0, 0.4); }
            50% { box-shadow: 0 0 22px rgba(255, 191, 0, 0.6); }
        }

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

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

            .article-container {
                max-width: 100%;
            }

            .related-grid {
                grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-space: var(--section-space-mobile);
                --nav-height: var(--nav-height-mobile);
            }

            .main-nav {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(18, 18, 18, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 16px 20px;
                border-bottom: 1px solid var(--border-subtle);
                box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
            }

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

            .main-nav a {
                padding: 12px 16px;
                border-radius: var(--radius-md);
                font-size: 1rem;
            }

            .nav-toggle {
                display: block;
            }

            .header-actions {
                gap: 8px;
            }

            .btn-login,
            .btn-signup {
                padding: 7px 14px;
                font-size: 0.82rem;
            }

            .article-main {
                padding-top: calc(var(--nav-height-mobile) + 20px);
            }

            .article-title {
                font-size: 1.6rem;
            }

            .article-cta-box {
                flex-direction: column;
                text-align: center;
                align-items: center;
            }

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

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

            .fab-left {
                bottom: 80px;
                left: 12px;
                width: 48px;
                height: 48px;
                font-size: 1rem;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                padding: 0 12px;
                gap: 12px;
            }

            .logo {
                font-size: 1rem;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.85rem;
            }

            .btn-login,
            .btn-signup {
                padding: 6px 10px;
                font-size: 0.75rem;
            }

            .container {
                padding: 0 16px;
            }

            .article-meta {
                gap: 10px;
                font-size: 0.8rem;
            }

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

            .article-body h2 {
                font-size: 1.35rem;
            }

            .article-body h3 {
                font-size: 1.15rem;
            }
        }

        /* Focus states */
        a:focus,
        button:focus,
        input:focus,
        select:focus,
        textarea:focus {
            outline: 2px solid var(--accent-amber);
            outline-offset: 2px;
        }

        a:focus:not(:focus-visible),
        button:focus:not(:focus-visible) {
            outline: none;
        }

        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent-amber);
            outline-offset: 2px;
        }

/* roulang page: category1 */
/* ===== Design System: Royal Dark VIP Lounge ===== */
        :root {
            --bg-primary: #121212;
            --bg-secondary: #1C1C1E;
            --bg-elevated: #242428;
            --bg-felt: #0E2A1D;
            --bg-felt-deep: #071B12;
            --accent-gold: #C5A059;
            --accent-amber: #FFBF00;
            --accent-bright-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-primary: #F5F5F7;
            --text-secondary: #D4AC0D;
            --text-muted: #9E9E9E;
            --text-on-dark: #FFFFFF;
            --border-gold: rgba(197, 160, 89, 0.45);
            --border-gold-strong: rgba(255, 215, 0, 0.75);
            --border-subtle: rgba(255, 255, 255, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.6);
            --shadow-gold: 0 4px 20px rgba(197, 160, 89, 0.3);
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.5);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.22, 1, 0.36, 1);
            --font-body: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            --font-heading: 'Georgia', 'Times New Roman', serif;
            --container-max: 1200px;
            --section-space: 72px;
            --section-space-mobile: 48px;
            --nav-height: 76px;
            --nav-height-mobile: 64px;
        }

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.65;
            color: var(--text-primary);
            background: var(--bg-primary);
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        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;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

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

        .section {
            padding: var(--section-space) 0;
            position: relative;
        }

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

        .section--felt {
            background: radial-gradient(ellipse at center, var(--bg-felt) 0%, var(--bg-felt-deep) 100%);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .section--dark {
            background: var(--bg-primary);
        }

        .section-label {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.14em;
            color: var(--accent-amber);
            background: rgba(255, 191, 0, 0.1);
            border: 1px solid rgba(255, 191, 0, 0.3);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            margin-bottom: 16px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            margin-bottom: 8px;
            color: var(--text-primary);
            font-weight: 700;
            letter-spacing: -0.01em;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 680px;
            margin-bottom: 32px;
            line-height: 1.6;
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-header--left {
            text-align: left;
        }

        .section-header--center {
            text-align: center;
        }

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

        .divider-gold {
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-amber), var(--accent-gold));
            border-radius: 2px;
            margin: 0 0 20px 0;
        }

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

        .text-muted {
            color: var(--text-muted);
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: var(--nav-height);
            display: flex;
            align-items: center;
            background: rgba(18, 18, 18, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-subtle);
            transition: box-shadow var(--transition-base), background var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
            background: rgba(18, 18, 18, 0.98);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--accent-bright-gold);
            letter-spacing: -0.01em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-primary);
            font-size: 1rem;
            box-shadow: 0 2px 8px rgba(197, 160, 89, 0.4);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-left: auto;
            margin-right: 12px;
        }

        .main-nav a {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-muted);
            padding: 8px 14px;
            border-radius: var(--radius-pill);
            transition: color var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
        }

        .main-nav a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }

        .main-nav a.active {
            color: var(--accent-amber);
            background: rgba(255, 191, 0, 0.12);
            border: 1px solid rgba(255, 191, 0, 0.3);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .btn-login {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-primary);
            padding: 10px 18px;
            background: transparent;
            border-radius: var(--radius-pill);
            transition: background var(--transition-fast), color var(--transition-fast);
            white-space: nowrap;
        }

        .btn-login:hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--accent-amber);
        }

        .btn-signup {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--bg-primary);
            padding: 10px 20px;
            background: linear-gradient(135deg, var(--accent-amber), var(--accent-bright-gold));
            border-radius: var(--radius-pill);
            box-shadow: 0 2px 12px rgba(255, 191, 0, 0.35);
            transition: transform var(--transition-fast), box-shadow var(--transition-fast);
            white-space: nowrap;
        }

        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 18px rgba(255, 191, 0, 0.5);
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-subtle);
            color: var(--text-primary);
            font-size: 1.2rem;
            align-items: center;
            justify-content: center;
            transition: background var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        /* ===== Hero Section (White Paper Lead Gen) ===== */
        .hero-lead {
            padding: calc(var(--nav-height) + 48px) 0 60px;
            background: radial-gradient(ellipse at 20% 30%, rgba(197, 160, 89, 0.08) 0%, transparent 55%),
                        radial-gradient(ellipse at 80% 70%, rgba(14, 42, 29, 0.9) 0%, transparent 60%),
                        var(--bg-primary);
            position: relative;
            overflow: hidden;
        }

        .hero-lead::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            opacity: 0.12;
            z-index: 0;
            pointer-events: none;
        }

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

        .hero-lead-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-lead-content {
            text-align: left;
            padding-right: 12px;
        }

        .hero-lead-content .section-label {
            margin-bottom: 20px;
        }

        .hero-lead-content h1 {
            font-family: var(--font-heading);
            font-size: clamp(1.9rem, 4vw, 2.8rem);
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 18px;
            color: var(--text-primary);
            letter-spacing: -0.015em;
        }

        .hero-lead-content .hero-subtitle {
            font-size: 1.08rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 520px;
        }

        .toc-mini {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            margin-bottom: 28px;
        }

        .toc-mini h3 {
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: var(--accent-amber);
            margin-bottom: 14px;
            font-family: var(--font-body);
        }

        .toc-mini ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: grid;
            gap: 10px;
        }

        .toc-mini ul li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.92rem;
            color: var(--text-primary);
            font-weight: 500;
        }

        .toc-mini ul li i {
            color: var(--accent-amber);
            font-size: 0.75rem;
            width: 18px;
            text-align: center;
        }

        .lead-form {
            background: var(--bg-elevated);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-md);
        }

        .lead-form h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-bright-gold);
            margin-bottom: 6px;
            font-family: var(--font-heading);
        }

        .lead-form p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 18px;
        }

        .form-group {
            margin-bottom: 14px;
        }

        .form-group label {
            display: block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 6px;
            letter-spacing: 0.03em;
        }

        .form-group input {
            width: 100%;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 0.92rem;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            outline: none;
        }

        .form-group input:focus {
            border-color: var(--accent-gold);
            box-shadow: 0 0 0 3px rgba(197, 160, 89, 0.15);
        }

        .form-group input::placeholder {
            color: rgba(255, 255, 255, 0.3);
        }

        .btn-download {
            width: 100%;
            padding: 14px 24px;
            background: linear-gradient(135deg, var(--accent-amber), var(--accent-bright-gold));
            color: var(--bg-primary);
            font-size: 0.95rem;
            font-weight: 700;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            transition: transform var(--transition-fast), box-shadow var(--transition-fast);
            box-shadow: 0 4px 16px rgba(255, 191, 0, 0.3);
        }

        .btn-download:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(255, 191, 0, 0.45);
        }

        .form-note {
            font-size: 0.75rem;
            color: var(--text-muted);
            text-align: center;
            margin-top: 12px;
        }

        .hero-lead-cover {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .cover-frame {
            position: relative;
            width: 100%;
            max-width: 420px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 2px solid var(--border-gold-strong);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.55), var(--shadow-gold);
        }

        .cover-frame img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 3/4;
        }

        .cover-frame::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, rgba(197, 160, 89, 0.12) 0%, transparent 30%, transparent 70%, rgba(0, 0, 0, 0.25) 100%);
            pointer-events: none;
        }

        .cover-badge {
            position: absolute;
            bottom: 14px;
            left: 50%;
            transform: translateX(-50%);
            background: rgba(18, 18, 18, 0.92);
            border: 1px solid var(--accent-amber);
            color: var(--accent-amber);
            font-size: 0.72rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            z-index: 2;
            white-space: nowrap;
        }

        /* ===== Section Styles ===== */
        .stat-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-top: 30px;
        }

        .stat-block {
            background: rgba(255, 255, 255, 0.04);
            border-left: 3px solid var(--accent-gold);
            padding: 18px 20px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        }

        .stat-block .stat-number {
            font-size: 1.8rem;
            font-weight: 700;
            font-family: var(--font-heading);
            color: var(--accent-amber);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .stat-block .stat-label {
            font-size: 0.82rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .mistake-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: grid;
            gap: 18px;
        }

        .mistake-list li {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 18px 20px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            transition: border-color var(--transition-fast), background var(--transition-fast);
        }

        .mistake-list li:hover {
            border-color: var(--border-gold);
            background: rgba(255, 255, 255, 0.05);
        }

        .mistake-icon {
            width: 36px;
            height: 36px;
            flex-shrink: 0;
            border-radius: 50%;
            background: rgba(211, 47, 47, 0.18);
            border: 1px solid rgba(211, 47, 47, 0.4);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-red);
            font-size: 0.9rem;
        }

        .mistake-list li h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
            font-family: var(--font-body);
        }

        .mistake-list li p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }

        .process-grid {
            display: grid;
            gap: 24px;
        }

        .process-step {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 24px 26px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .process-step:hover {
            border-color: var(--border-gold);
            box-shadow: 0 4px 20px rgba(197, 160, 89, 0.12);
        }

        .process-number {
            width: 48px;
            height: 48px;
            flex-shrink: 0;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            color: var(--bg-primary);
            font-weight: 700;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-heading);
        }

        .process-step h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
            font-family: var(--font-body);
        }

        .process-step p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }

        .benefit-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
        }

        .benefit-card {
            padding: 26px 24px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
        }

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

        .benefit-card .benefit-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(255, 191, 0, 0.12);
            border: 1px solid rgba(255, 191, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-amber);
            font-size: 1.1rem;
            margin-bottom: 16px;
        }

        .benefit-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            font-family: var(--font-body);
        }

        .benefit-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }

        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 22px;
        }

        .testimonial-card {
            background: var(--bg-elevated);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px;
            position: relative;
            transition: border-color var(--transition-fast);
        }

        .testimonial-card:hover {
            border-color: var(--border-gold);
        }

        .testimonial-card .quote-icon {
            font-size: 1.6rem;
            color: var(--accent-amber);
            opacity: 0.4;
            margin-bottom: 12px;
            display: block;
        }

        .testimonial-card p {
            font-size: 0.92rem;
            color: var(--text-primary);
            line-height: 1.7;
            font-style: italic;
            margin-bottom: 18px;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .testimonial-author .avatar {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: rgba(197, 160, 89, 0.25);
            border: 1px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-amber);
            font-size: 1rem;
            font-weight: 700;
            font-family: var(--font-heading);
        }

        .testimonial-author .author-name {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        .testimonial-author .author-loc {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* ===== FAQ Accordion ===== */
        .faq-list {
            display: grid;
            gap: 14px;
        }

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

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

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            text-align: left;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            transition: color var(--transition-fast);
        }

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

        .faq-question i {
            font-size: 0.8rem;
            color: var(--accent-amber);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 22px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }

        .faq-answer p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== CTA Section ===== */
        .cta-final {
            text-align: center;
        }

        .cta-final .section-title {
            margin-bottom: 16px;
        }

        .cta-final .section-subtitle {
            margin-left: auto;
            margin-right: auto;
            margin-bottom: 28px;
        }

        .cta-final .btn-download {
            max-width: 340px;
            margin: 0 auto;
            display: flex;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-gold);
            padding: 56px 0 32px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 40px;
        }

        .footer-brand .logo {
            margin-bottom: 14px;
        }

        .footer-brand p {
            font-size: 0.86rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .trust-badges {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            padding: 12px 0 0 0;
            justify-content: flex-start;
        }

        .trust-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--accent-amber);
            background: rgba(255, 191, 0, 0.08);
            border: 1px solid rgba(255, 191, 0, 0.3);
            border-radius: var(--radius-pill);
            padding: 6px 12px;
        }

        .footer-col h4 {
            font-size: 0.82rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-bright-gold);
            margin-bottom: 16px;
            font-family: var(--font-body);
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: grid;
            gap: 10px;
        }

        .footer-col ul li a {
            font-size: 0.88rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        .footer-col ul li a i {
            color: var(--accent-gold);
            font-size: 0.7rem;
            margin-right: 4px;
        }

        .footer-bottom {
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-muted);
            opacity: 0.7;
            padding-top: 24px;
            border-top: 1px solid var(--border-subtle);
        }

        /* ===== FAB (Option 2: Cyber & Neon Style) ===== */
        .fab-cyber {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 12px 18px;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 2px solid transparent;
            border-radius: var(--radius-pill);
            background-clip: padding-box;
            position: relative;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            opacity: 0.6;
            transition: opacity var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
            text-decoration: none;
            color: var(--text-on-dark);
        }

        .fab-cyber::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: var(--radius-pill);
            padding: 2px;
            background: linear-gradient(90deg, #CCFF00, #00F0FF, #CCFF00);
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            pointer-events: none;
            animation: fab-border-flow 3s linear infinite;
        }

        @keyframes fab-border-flow {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }

        .fab-cyber i {
            font-size: 1.1rem;
            color: #00F0FF;
        }

        .fab-cyber .fab-label {
            font-size: 0.78rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--text-on-dark);
            white-space: nowrap;
        }

        .fab-cyber:hover {
            opacity: 1;
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.8);
            transform: scale(1.05);
        }

        .fab-cyber:active {
            border-color: #FF007F;
            box-shadow: 0 0 30px rgba(255, 0, 127, 0.7);
            transform: scale(0.96);
        }

        /* ===== Responsive ===== */
        @media (min-width: 769px) and (max-width: 1024px) {
            :root {
                --section-space: 56px;
            }

            .hero-lead-grid {
                gap: 32px;
            }

            .main-nav {
                gap: 4px;
            }

            .main-nav a {
                font-size: 0.8rem;
                padding: 7px 10px;
            }

            .footer-grid {
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-space: var(--section-space-mobile);
                --nav-height: var(--nav-height-mobile);
            }

            .nav-toggle {
                display: flex;
            }

            .main-nav {
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
                background: rgba(18, 18, 18, 0.98);
                border-bottom: 1px solid var(--border-subtle);
                padding: 16px 20px;
                margin: 0;
                display: none;
                z-index: 99;
            }

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

            .main-nav a {
                font-size: 0.95rem;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }

            .header-actions {
                gap: 6px;
            }

            .btn-login,
            .btn-signup {
                font-size: 0.78rem;
                padding: 8px 14px;
            }

            .hero-lead {
                padding: calc(var(--nav-height) + 32px) 0 40px;
            }

            .hero-lead-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .hero-lead-content {
                padding-right: 0;
            }

            .hero-lead-cover {
                order: -1;
            }

            .cover-frame {
                max-width: 280px;
                margin: 0 auto;
            }

            .stat-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .process-step {
                flex-direction: column;
                gap: 12px;
                padding: 20px;
            }

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

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

            .fab-cyber {
                left: 10px;
                bottom: 80px;
                padding: 10px 14px;
            }

            .fab-cyber .fab-label {
                display: none;
            }

            .fab-cyber i {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                gap: 10px;
                padding: 0 12px;
            }

            .logo {
                font-size: 0.95rem;
                gap: 6px;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.85rem;
            }

            .btn-login {
                padding: 7px 10px;
                font-size: 0.72rem;
            }

            .btn-signup {
                padding: 7px 12px;
                font-size: 0.72rem;
            }

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

            .hero-lead-content .hero-subtitle {
                font-size: 0.95rem;
            }

            .toc-mini {
                padding: 16px 18px;
            }

            .lead-form {
                padding: 20px;
            }

            .section-title {
                font-size: 1.45rem;
            }

            .stat-row {
                grid-template-columns: 1fr;
            }

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

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

            .process-step {
                flex-direction: column;
            }

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

            .footer-brand {
                grid-column: auto;
            }

            .cta-final .btn-download {
                max-width: 100%;
            }

            .cover-frame {
                max-width: 220px;
            }
        }

        @media (min-width: 769px) {
            :root {
                --section-space: 72px;
                --nav-height: 76px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #121212;
            --bg-secondary: #1C1C1E;
            --bg-elevated: #242428;
            --bg-felt: #0E2A1D;
            --bg-felt-deep: #071B12;
            --accent-gold: #C5A059;
            --accent-amber: #FFBF00;
            --accent-bright-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-primary: #F5F5F7;
            --text-secondary: #D4AC0D;
            --text-muted: #9E9E9E;
            --text-on-dark: #FFFFFF;
            --border-gold: rgba(197, 160, 89, 0.45);
            --border-gold-strong: rgba(255, 215, 0, 0.75);
            --border-subtle: rgba(255, 255, 255, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.6);
            --shadow-gold: 0 4px 20px rgba(197, 160, 89, 0.3);
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.5);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.22, 1, 0.36, 1);
            --font-body: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            --font-heading: 'Georgia', 'Times New Roman', serif;
            --container-max: 1200px;
            --section-space: 72px;
            --section-space-mobile: 48px;
            --nav-height: 76px;
            --nav-height-mobile: 64px;
        }
        @media (max-width: 767px) {
            :root {
                --section-space: var(--section-space-mobile);
                --nav-height: var(--nav-height-mobile);
            }
        }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.65;
            color: var(--text-primary);
            background: var(--bg-primary);
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--nav-height);
        }
        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; }
        button { cursor: pointer; border: none; background: none; }
        .container { max-width: var(--container-max); margin: 0 auto; padding: 0 20px; }
        .section { padding: var(--section-space) 0; position: relative; }
        .section--alt { background: var(--bg-secondary); }
        .section--felt { background: radial-gradient(ellipse at center, var(--bg-felt) 0%, var(--bg-felt-deep) 100%); border-top: 1px solid var(--border-subtle); border-bottom: 1px solid var(--border-subtle); }
        .section--dark { background: var(--bg-primary); }
        .section-label {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.14em;
            color: var(--accent-amber);
            background: rgba(255, 191, 0, 0.1);
            border: 1px solid rgba(255, 191, 0, 0.3);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            margin-bottom: 16px;
        }
        .section-title { font-family: var(--font-heading); font-size: clamp(1.6rem, 3vw, 2.4rem); margin-bottom: 8px; line-height: 1.25; }
        .section-subtitle { font-size: 1.05rem; color: var(--text-muted); max-width: 680px; margin-bottom: 32px; line-height: 1.6; }
        .section-header { margin-bottom: 40px; }
        .section-header--left { text-align: left; }
        .section-header--center { text-align: center; }
        .section-header--center .section-subtitle { margin-left: auto; margin-right: auto; }
        .divider-gold {
            width: 60px; height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-amber), var(--accent-gold));
            border-radius: 2px;
            margin: 0 0 20px 0;
        }
        .text-gold { color: var(--accent-amber); }
        .text-muted { color: var(--text-muted); }

        /* Header / Navigation */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 100;
            height: var(--nav-height);
            display: flex; align-items: center;
            background: rgba(18, 18, 18, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-subtle);
            transition: box-shadow var(--transition-base), background var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
            background: rgba(18, 18, 18, 0.98);
        }
        .header-inner {
            display: flex; align-items: center; justify-content: space-between;
            gap: 20px; width: 100%; max-width: var(--container-max);
            margin: 0 auto; padding: 0 20px;
        }
        .logo {
            display: flex; align-items: center; gap: 10px;
            font-family: var(--font-heading);
            font-size: 1.15rem; font-weight: 700;
            color: var(--accent-bright-gold);
            letter-spacing: -0.01em;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px; height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold), #6B4B2A);
            display: flex; align-items: center; justify-content: center;
            color: var(--text-on-dark);
            font-size: 1rem;
            border: 2px solid var(--border-gold-strong);
            box-shadow: var(--shadow-gold);
        }
        .main-nav { display: flex; align-items: center; gap: 28px; }
        .main-nav a {
            font-size: 0.9rem; font-weight: 600;
            color: var(--text-muted);
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }
        .main-nav a::after {
            content: '';
            position: absolute; bottom: -2px; left: 0; right: 0;
            height: 2px; background: linear-gradient(90deg, var(--accent-gold), var(--accent-amber));
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-base);
        }
        .main-nav a:hover, .main-nav a.active { color: var(--accent-bright-gold); }
        .main-nav a:hover::after, .main-nav a.active::after { transform: scaleX(1); }
        .header-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
        .btn-login {
            font-size: 0.85rem; font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            padding: 8px 18px;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-pill);
            transition: all var(--transition-fast);
        }
        .btn-login:hover { border-color: var(--accent-gold); color: var(--accent-bright-gold); }
        .btn-signup {
            font-size: 0.85rem; font-weight: 700;
            color: #1A1A1A;
            background: linear-gradient(135deg, var(--accent-amber), var(--accent-bright-gold));
            padding: 8px 20px;
            border-radius: var(--radius-pill);
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-fast);
        }
        .btn-signup:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(255, 215, 0, 0.45); }
        .nav-toggle {
            display: none;
            width: 42px; height: 42px;
            align-items: center; justify-content: center;
            color: var(--text-primary);
            font-size: 1.3rem;
            background: var(--bg-elevated);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }
        .nav-toggle:hover { color: var(--accent-bright-gold); border-color: var(--border-gold); }

        /* Hero */
        .hero-cat {
            position: relative;
            background: linear-gradient(135deg, #0A0A0A 0%, var(--bg-felt-deep) 55%, #0A1A12 100%);
            border-bottom: 1px solid var(--border-subtle);
            padding: 70px 0 60px;
            overflow: hidden;
        }
        .hero-cat::before {
            content: '';
            position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            opacity: 0.18;
            z-index: 0;
        }
        .hero-cat::after {
            content: '';
            position: absolute; inset: 0;
            background: linear-gradient(180deg, rgba(10, 10, 10, 0.7) 0%, rgba(7, 27, 18, 0.9) 100%);
            z-index: 1;
        }
        .hero-cat .container { position: relative; z-index: 2; }
        .hero-cat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
        .hero-cat-content { text-align: left; }
        .hero-cat-badge {
            display: inline-flex; align-items: center; gap: 8px;
            font-size: 0.75rem; font-weight: 700;
            color: var(--accent-bright-gold);
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-pill);
            padding: 6px 18px;
            margin-bottom: 20px;
        }
        .hero-cat-badge i { color: var(--accent-amber); }
        .hero-cat-title {
            font-family: var(--font-heading);
            font-size: clamp(1.9rem, 4.2vw, 3.2rem);
            line-height: 1.15;
            margin-bottom: 18px;
            color: var(--text-on-dark);
            font-weight: 700;
            letter-spacing: -0.02em;
        }
        .hero-cat-title em {
            font-style: italic;
            color: var(--accent-bright-gold);
        }
        .hero-cat-sub {
            font-size: 1.08rem;
            color: #B8B8B8;
            line-height: 1.7;
            max-width: 520px;
            margin-bottom: 28px;
        }
        .hero-cat-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
        .btn-primary {
            display: inline-flex; align-items: center; gap: 10px;
            font-size: 0.95rem; font-weight: 700;
            color: #1A1A1A;
            background: linear-gradient(135deg, var(--accent-amber), var(--accent-bright-gold));
            padding: 13px 30px;
            border-radius: var(--radius-pill);
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
        }
        .btn-primary:hover { transform: translateY(-3px); box-shadow: 0 10px 32px rgba(255, 215, 0, 0.5); color: #1A1A1A; }
        .btn-outline {
            display: inline-flex; align-items: center; gap: 8px;
            font-size: 0.95rem; font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            padding: 13px 26px;
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-pill);
            transition: all var(--transition-fast);
        }
        .btn-outline:hover { border-color: var(--accent-bright-gold); color: var(--accent-bright-gold); }
        .hero-cat-visual { position: relative; }
        .hero-cat-poster {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 2px solid var(--border-gold);
            box-shadow: var(--shadow-lg), var(--shadow-gold);
            position: relative;
        }
        .hero-cat-poster img { width: 100%; height: auto; object-fit: cover; }
        .hero-cat-poster-overlay {
            position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(18, 18, 18, 0.2) 0%, rgba(18, 18, 18, 0.7) 100%);
            display: flex; align-items: flex-end;
            padding: 20px;
        }
        .hero-cat-poster-tag {
            font-size: 0.8rem; font-weight: 700;
            color: #1A1A1A;
            background: var(--accent-bright-gold);
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            display: inline-flex; align-items: center; gap: 6px;
        }
        .hero-cat-poster-tag i { color: #D32F2F; }

        /* Pain Point Section */
        .pain-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
        .pain-content { text-align: left; }
        .pain-list { list-style: none; margin: 0 0 24px 0; padding: 0; }
        .pain-list li {
            display: flex; align-items: flex-start; gap: 14px;
            padding: 14px 0;
            border-bottom: 1px solid var(--border-subtle);
            font-size: 0.98rem;
            color: var(--text-primary);
        }
        .pain-list li:last-child { border-bottom: none; }
        .pain-list li i {
            color: var(--accent-red);
            font-size: 1.1rem;
            margin-top: 4px;
            flex-shrink: 0;
        }
        .pain-list li strong { color: var(--accent-amber); font-weight: 600; }
        .pain-stats {
            display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
            margin-top: 12px;
        }
        .pain-stat {
            background: var(--bg-elevated);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 20px 18px;
            text-align: center;
            transition: all var(--transition-base);
        }
        .pain-stat:hover { border-color: var(--border-gold); transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .pain-stat-num {
            font-family: var(--font-heading);
            font-size: 1.8rem; font-weight: 700;
            color: var(--accent-bright-gold);
            line-height: 1.2;
        }
        .pain-stat-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 4px; }
        .pain-visual img {
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-md);
        }

        /* Experience Cards */
        .exp-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .exp-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
            text-align: left;
        }
        .exp-card::before {
            content: '';
            position: absolute; top: 0; left: 0; right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-amber), var(--accent-gold));
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .exp-card:hover { border-color: var(--border-gold); transform: translateY(-6px); box-shadow: var(--shadow-lg); }
        .exp-card:hover::before { opacity: 1; }
        .exp-card-icon {
            width: 52px; height: 52px;
            border-radius: 50%;
            background: rgba(197, 160, 89, 0.15);
            border: 1px solid var(--border-gold);
            display: flex; align-items: center; justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-bright-gold);
            margin-bottom: 18px;
            transition: all var(--transition-fast);
        }
        .exp-card:hover .exp-card-icon { background: rgba(255, 215, 0, 0.2); transform: scale(1.08); }
        .exp-card h3 { font-size: 1.1rem; font-weight: 700; color: var(--text-primary); margin-bottom: 10px; font-family: var(--font-body); }
        .exp-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; margin: 0; }
        .exp-card-tag {
            display: inline-block; font-size: 0.7rem; font-weight: 700;
            color: var(--accent-amber);
            background: rgba(255, 191, 0, 0.08);
            border-radius: var(--radius-pill);
            padding: 4px 12px;
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }

        /* Results Section */
        .results-layout { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; align-items: center; }
        .results-visual {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-gold);
            box-shadow: var(--shadow-lg);
        }
        .results-visual img { width: 100%; height: 100%; object-fit: cover; }
        .results-content { text-align: left; }
        .result-item {
            display: flex; align-items: center; gap: 16px;
            padding: 14px 0;
            border-bottom: 1px solid var(--border-subtle);
        }
        .result-item:last-child { border-bottom: none; }
        .result-item-icon {
            width: 40px; height: 40px;
            border-radius: 50%;
            background: rgba(197, 160, 89, 0.12);
            border: 1px solid var(--border-gold);
            display: flex; align-items: center; justify-content: center;
            color: var(--accent-bright-gold);
            font-size: 1rem;
            flex-shrink: 0;
        }
        .result-item h4 { font-size: 0.98rem; font-weight: 700; margin: 0 0 2px 0; color: var(--text-primary); font-family: var(--font-body); }
        .result-item p { font-size: 0.85rem; color: var(--text-muted); margin: 0; }

        /* Testimonials */
        .testi-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .testi-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: all var(--transition-base);
            text-align: left;
        }
        .testi-card:hover { border-color: var(--border-gold); box-shadow: var(--shadow-md); }
        .testi-stars { display: flex; gap: 4px; margin-bottom: 12px; }
        .testi-stars i { color: var(--accent-bright-gold); font-size: 0.8rem; }
        .testi-text { font-size: 0.9rem; color: var(--text-primary); line-height: 1.6; margin-bottom: 16px; font-style: italic; }
        .testi-author { display: flex; align-items: center; gap: 12px; }
        .testi-avatar {
            width: 42px; height: 42px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold), #6B4B2A);
            display: flex; align-items: center; justify-content: center;
            color: var(--text-on-dark);
            font-weight: 700;
            font-size: 1rem;
            flex-shrink: 0;
        }
        .testi-name { font-size: 0.9rem; font-weight: 700; color: var(--text-primary); }
        .testi-role { font-size: 0.75rem; color: var(--text-muted); }

        /* FAQ */
        .faq-grid { display: grid; grid-template-columns: 1fr; gap: 14px; max-width: 820px; margin: 0 auto; }
        .faq-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover { border-color: var(--border-gold); }
        .faq-question {
            display: flex; align-items: center; justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 0.98rem; font-weight: 700;
            color: var(--text-primary);
            transition: color var(--transition-fast);
            text-align: left;
            gap: 16px;
            width: 100%;
        }
        .faq-question:hover { color: var(--accent-bright-gold); }
        .faq-question i { color: var(--accent-amber); transition: transform var(--transition-base); flex-shrink: 0; }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow);
            padding: 0 22px;
        }
        .faq-item.open .faq-answer { max-height: 400px; padding-bottom: 18px; }
        .faq-answer p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.65; margin: 0; }

        /* CTA Section */
        .cta-box {
            background: radial-gradient(ellipse at center, #1E2E28 0%, var(--bg-felt-deep) 100%);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-xl);
            padding: 52px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .cta-box::before {
            content: '';
            position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
            opacity: 0.12;
            z-index: 0;
        }
        .cta-box > * { position: relative; z-index: 1; }
        .cta-box h2 { font-family: var(--font-heading); font-size: clamp(1.5rem, 2.8vw, 2.2rem); color: var(--text-on-dark); margin-bottom: 12px; }
        .cta-box p { font-size: 1rem; color: #B8B8B8; max-width: 560px; margin: 0 auto 28px; line-height: 1.6; }
        .cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }

        /* FAB */
        .fab {
            position: fixed; left: 16px; bottom: 96px; z-index: 50;
            width: 56px; height: 56px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), linear-gradient(135deg, #CCFF00, #00F0FF);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex; align-items: center; justify-content: center;
            color: #00F0FF;
            font-size: 1.4rem;
            cursor: pointer;
            opacity: 0.6;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            transition: all var(--transition-base);
            animation: fab-breathe 3s ease-in-out infinite;
        }
        .fab:hover { opacity: 1; transform: scale(1.1); box-shadow: 0 0 24px rgba(0, 240, 255, 0.7); }
        .fab:active { transform: scale(0.95); }
        .fab-notify {
            position: absolute; top: -2px; right: -2px;
            width: 14px; height: 14px;
            border-radius: 50%;
            background: var(--accent-red);
            border: 2px solid #0F0C20;
            animation: fab-blink 1.2s ease-in-out infinite;
        }
        @keyframes fab-breathe {
            0%, 100% { opacity: 0.6; }
            50% { opacity: 0.85; }
        }
        @keyframes fab-blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: 56px 0 20px;
            margin-top: 0;
        }
        .footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 36px; }
        .footer-brand p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.6; margin-top: 14px; }
        .trust-badges { display: flex; flex-wrap: wrap; gap: 8px; padding: 12px 0; }
        .trust-badge {
            display: inline-flex; align-items: center; gap: 6px;
            font-size: 0.72rem; font-weight: 600;
            color: var(--accent-bright-gold);
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-pill);
            padding: 5px 14px;
        }
        .footer-col h4 { font-size: 0.92rem; font-weight: 700; color: var(--accent-amber); margin-bottom: 16px; font-family: var(--font-body); }
        .footer-col ul { list-style: none; margin: 0; padding: 0; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { font-size: 0.85rem; color: var(--text-muted); transition: color var(--transition-fast); }
        .footer-col ul li a:hover { color: var(--accent-bright-gold); }
        .footer-col ul li a i { margin-right: 6px; font-size: 0.7rem; }
        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
        }
        .footer-bottom p { font-size: 0.8rem; color: var(--text-muted); margin: 0; text-align: center; line-height: 1.5; }

        /* Responsive */
        @media (max-width: 1024px) {
            .main-nav { gap: 20px; }
            .hero-cat-grid { grid-template-columns: 1fr; gap: 32px; }
            .hero-cat-visual { max-width: 500px; margin: 0 auto; }
            .pain-grid { grid-template-columns: 1fr; gap: 32px; }
            .results-layout { grid-template-columns: 1fr; gap: 32px; }
            .exp-grid { grid-template-columns: repeat(2, 1fr); }
            .testi-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .main-nav {
                position: fixed; top: var(--nav-height); left: 0; right: 0;
                background: rgba(18, 18, 18, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column; align-items: flex-start;
                padding: 20px;
                gap: 0;
                display: none;
                border-bottom: 1px solid var(--border-subtle);
                box-shadow: var(--shadow-md);
                z-index: 99;
            }
            .main-nav.open { display: flex; }
            .main-nav a { padding: 14px 0; font-size: 1rem; width: 100%; border-bottom: 1px solid var(--border-subtle); }
            .main-nav a:last-child { border-bottom: none; }
            .nav-toggle { display: flex; }
            .header-actions .btn-login { padding: 6px 14px; font-size: 0.78rem; }
            .header-actions .btn-signup { padding: 6px 16px; font-size: 0.78rem; }
            .exp-grid { grid-template-columns: 1fr; }
            .testi-grid { grid-template-columns: 1fr; }
            .pain-stats { grid-template-columns: repeat(3, 1fr); gap: 8px; }
            .pain-stat { padding: 14px 10px; }
            .pain-stat-num { font-size: 1.3rem; }
            .cta-box { padding: 36px 24px; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .section { padding: var(--section-space-mobile) 0; }
            .hero-cat { padding: 48px 0 40px; }
            .fab { width: 48px; height: 48px; font-size: 1.2rem; left: 12px; bottom: 80px; }
        }
        @media (max-width: 520px) {
            .header-inner { padding: 0 12px; gap: 12px; }
            .logo { font-size: 0.95rem; }
            .logo-icon { width: 32px; height: 32px; font-size: 0.85rem; }
            .header-actions { gap: 6px; }
            .btn-login { padding: 5px 10px; font-size: 0.7rem; }
            .btn-signup { padding: 5px 12px; font-size: 0.7rem; }
            .hero-cat-title { font-size: 1.6rem; }
            .hero-cat-sub { font-size: 0.95rem; }
            .btn-primary, .btn-outline { padding: 10px 20px; font-size: 0.85rem; }
            .pain-stats { grid-template-columns: 1fr; }
            .section-title { font-size: 1.4rem; }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #121212;
            --bg-secondary: #1C1C1E;
            --bg-elevated: #242428;
            --bg-felt: #0E2A1D;
            --bg-felt-deep: #071B12;
            --accent-gold: #C5A059;
            --accent-amber: #FFBF00;
            --accent-bright-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-primary: #F5F5F7;
            --text-secondary: #D4AC0D;
            --text-muted: #9E9E9E;
            --text-on-dark: #FFFFFF;
            --border-gold: rgba(197, 160, 89, 0.45);
            --border-gold-strong: rgba(255, 215, 0, 0.75);
            --border-subtle: rgba(255, 255, 255, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.6);
            --shadow-gold: 0 4px 20px rgba(197, 160, 89, 0.3);
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.5);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.22, 1, 0.36, 1);
            --font-body: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            --font-heading: 'Georgia', 'Times New Roman', serif;
            --container-max: 1200px;
            --section-space: 72px;
            --section-space-mobile: 48px;
            --nav-height: 76px;
            --nav-height-mobile: 64px;
        }

        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.65;
            color: var(--text-primary);
            background: var(--bg-primary);
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--nav-height);
        }
        img { max-width: 100%; height: auto; display: block; }
        a { text-decoration: none; color: inherit; transition: color var(--transition-fast); }
        a:hover { color: var(--accent-amber); }
        button, input, select, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: none; }
        .container { max-width: var(--container-max); margin: 0 auto; padding: 0 20px; }
        .section { padding: var(--section-space) 0; position: relative; }
        .section--alt { background: var(--bg-secondary); }
        .section--felt { background: radial-gradient(ellipse at center, var(--bg-felt) 0%, var(--bg-felt-deep) 100%); border-top: 1px solid var(--border-subtle); border-bottom: 1px solid var(--border-subtle); }
        .section--dark { background: var(--bg-primary); }
        .section-label {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.14em;
            color: var(--accent-amber);
            background: rgba(255, 191, 0, 0.1);
            border: 1px solid rgba(255, 191, 0, 0.3);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            margin-bottom: 16px;
        }
        .section-title { font-family: var(--font-heading); font-size: clamp(1.6rem, 3vw, 2.4rem); margin-bottom: 8px; line-height: 1.25; }
        .section-subtitle { font-size: 1.05rem; color: var(--text-muted); max-width: 680px; margin-bottom: 32px; line-height: 1.6; }
        .section-header { margin-bottom: 40px; }
        .section-header--left { text-align: left; }
        .section-header--center { text-align: center; }
        .section-header--center .section-subtitle { margin-left: auto; margin-right: auto; }
        .divider-gold {
            width: 60px; height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-amber), var(--accent-gold));
            border-radius: 2px;
            margin: 0 0 20px 0;
        }
        .text-gold { color: var(--accent-amber); }
        .text-muted { color: var(--text-muted); }
        .text-center { text-align: center; }

        /* Header */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 100;
            height: var(--nav-height);
            display: flex; align-items: center;
            background: rgba(18, 18, 18, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-subtle);
            transition: box-shadow var(--transition-base), background var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
            background: rgba(18, 18, 18, 0.98);
        }
        .header-inner {
            display: flex; align-items: center; justify-content: space-between;
            gap: 20px; width: 100%; max-width: var(--container-max);
            margin: 0 auto; padding: 0 20px;
        }
        .logo {
            display: flex; align-items: center; gap: 10px;
            font-family: var(--font-heading);
            font-size: 1.15rem; font-weight: 700;
            color: var(--accent-bright-gold);
            letter-spacing: -0.01em;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px; height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            display: flex; align-items: center; justify-content: center;
            color: var(--bg-primary);
            font-size: 1.1rem;
        }
        .main-nav {
            display: flex; align-items: center; gap: 28px;
            font-size: 0.95rem; font-weight: 500;
        }
        .main-nav a { position: relative; padding: 8px 0; color: var(--text-muted); }
        .main-nav a:hover { color: var(--text-primary); }
        .main-nav a.active { color: var(--accent-amber); }
        .main-nav a.active::after {
            content: '';
            position: absolute; left: 0; right: 0; bottom: 0;
            height: 2px; background: var(--accent-amber); border-radius: 1px;
        }
        .header-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
        .btn-login {
            background: transparent; color: var(--text-primary);
            border: 1px solid var(--border-subtle);
            padding: 9px 18px; border-radius: var(--radius-pill);
            font-weight: 600; transition: all var(--transition-fast);
        }
        .btn-login:hover { border-color: var(--accent-gold); color: var(--accent-amber); }
        .btn-signup {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            color: var(--bg-primary);
            padding: 9px 22px; border-radius: var(--radius-pill);
            font-weight: 700; box-shadow: 0 4px 14px rgba(197, 160, 89, 0.3);
            transition: all var(--transition-fast);
        }
        .btn-signup:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(197, 160, 89, 0.45); }
        .nav-toggle {
            display: none;
            width: 44px; height: 44px;
            border-radius: 12px;
            background: var(--bg-elevated);
            color: var(--text-primary);
            font-size: 1.3rem;
            align-items: center; justify-content: center;
        }

        /* Hero Bento */
        .hero-bento {
            padding: calc(var(--section-space) * 0.9) 0 var(--section-space);
            background: radial-gradient(ellipse at 20% 20%, rgba(197,160,89,0.08) 0%, transparent 60%),
                        radial-gradient(ellipse at 80% 80%, rgba(255,191,0,0.05) 0%, transparent 55%),
                        var(--bg-primary);
        }
        .hero-bento h1 {
            font-family: var(--font-heading);
            font-size: clamp(2rem, 4.5vw, 3.3rem);
            line-height: 1.2;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .hero-bento .hero-subtext {
            font-size: 1.12rem;
            color: var(--text-muted);
            margin-bottom: 28px;
            max-width: 550px;
        }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 24px; }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            color: var(--bg-primary);
            padding: 13px 28px; border-radius: var(--radius-pill);
            font-weight: 700; font-size: 1rem;
            box-shadow: 0 8px 20px rgba(197, 160, 89, 0.35);
            transition: all var(--transition-base);
            display: inline-flex; align-items: center; gap: 10px;
        }
        .btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 28px rgba(197, 160, 89, 0.5); color: var(--bg-primary); }
        .btn-secondary {
            background: rgba(255,255,255,0.06);
            color: var(--text-primary);
            padding: 13px 28px; border-radius: var(--radius-pill);
            font-weight: 600; border: 1px solid var(--border-subtle);
            transition: all var(--transition-base);
            display: inline-flex; align-items: center; gap: 10px;
        }
        .btn-secondary:hover { background: rgba(255,255,255,0.12); color: var(--accent-amber); transform: translateY(-2px); }
        .hero-stats { display: flex; flex-wrap: wrap; gap: 24px; }
        .hero-stat { display: flex; align-items: center; gap: 10px; }
        .hero-stat .stat-number { font-family: var(--font-heading); font-size: 1.8rem; color: var(--accent-amber); font-weight: 700; }
        .hero-stat .stat-label { font-size: 0.85rem; color: var(--text-muted); }

        /* Bento Grid */
        .bento-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            grid-template-rows: auto auto;
            gap: 16px;
        }
        .bento-main {
            grid-column: 1 / -1;
            grid-row: 1 / 3;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-gold);
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .bento-main img { width: 100%; height: 100%; object-fit: cover; min-height: 320px; }
        .bento-main .bento-overlay {
            position: absolute; inset: 0;
            background: linear-gradient(0deg, rgba(0,0,0,0.75) 0%, transparent 50%);
            display: flex; align-items: flex-end; padding: 20px;
        }
        .bento-main .bento-overlay h3 { font-family: var(--font-heading); font-size: 1.5rem; color: var(--accent-bright-gold); margin: 0; }
        .bento-small {
            background: var(--bg-elevated);
            border-radius: var(--radius-md);
            padding: 18px;
            border: 1px solid var(--border-subtle);
            display: flex; flex-direction: column; justify-content: center;
            transition: border-color var(--transition-base), transform var(--transition-base);
        }
        .bento-small:hover { border-color: var(--border-gold-strong); transform: translateY(-3px); }
        .bento-small .bento-icon {
            width: 40px; height: 40px; border-radius: 12px;
            background: rgba(197,160,89,0.15);
            display: flex; align-items: center; justify-content: center;
            color: var(--accent-amber); font-size: 1.2rem; margin-bottom: 10px;
        }
        .bento-small h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 4px; color: var(--text-primary); }
        .bento-small p { font-size: 0.9rem; color: var(--text-muted); margin: 0; }
        .bento-cta {
            grid-column: 1 / -1;
            background: linear-gradient(135deg, rgba(197,160,89,0.15), rgba(255,191,0,0.08));
            border: 1px dashed var(--border-gold-strong);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            display: flex; align-items: center; justify-content: space-between;
            gap: 12px; flex-wrap: wrap;
        }
        .bento-cta span { font-weight: 600; color: var(--accent-amber); }
        .bento-cta a { color: var(--bg-primary); background: var(--accent-amber); padding: 8px 18px; border-radius: var(--radius-pill); font-weight: 700; }

        /* Section generic */
        .content-block { margin-bottom: 32px; }
        .content-block h2 { font-family: var(--font-heading); font-size: 1.8rem; margin-bottom: 12px; color: var(--text-primary); }
        .content-block h3 { font-family: var(--font-heading); font-size: 1.4rem; margin-bottom: 10px; color: var(--accent-amber); }
        .content-block p { color: var(--text-muted); margin-bottom: 16px; }
        .grid-benefit {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }
        .benefit-item {
            background: var(--bg-secondary);
            border-radius: var(--radius-md);
            padding: 28px;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-base);
        }
        .benefit-item:hover { border-color: var(--border-gold); transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .benefit-item .benefit-icon {
            width: 50px; height: 50px; border-radius: 14px;
            background: rgba(197,160,89,0.12);
            display: flex; align-items: center; justify-content: center;
            font-size: 1.5rem; color: var(--accent-amber);
            margin-bottom: 16px;
        }
        .benefit-item h3 { font-family: var(--font-heading); font-size: 1.25rem; color: var(--text-primary); margin-bottom: 8px; }
        .benefit-item p { font-size: 0.95rem; color: var(--text-muted); margin: 0; }

        /* Strategy Steps */
        .strategy-list { counter-reset: step-counter; display: grid; gap: 16px; }
        .strategy-step {
            background: var(--bg-secondary);
            border-radius: var(--radius-md);
            padding: 24px;
            border-left: 4px solid var(--accent-gold);
            transition: background var(--transition-base);
        }
        .strategy-step:hover { background: var(--bg-elevated); }
        .strategy-step::before {
            counter-increment: step-counter;
            content: counter(step-counter);
            display: inline-flex; align-items: center; justify-content: center;
            width: 32px; height: 32px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            color: var(--bg-primary);
            font-weight: 700;
            margin-right: 12px;
            float: left;
        }
        .strategy-step h3 { font-family: var(--font-heading); font-size: 1.2rem; color: var(--text-primary); margin-bottom: 6px; }
        .strategy-step p { color: var(--text-muted); font-size: 0.95rem; margin: 0; }

        /* Mistakes */
        .mistake-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
        .mistake-list li {
            background: rgba(211,47,47,0.08);
            border: 1px solid rgba(211,47,47,0.25);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            color: var(--text-primary);
            display: flex; align-items: flex-start; gap: 10px;
        }
        .mistake-list li i {
            color: var(--accent-red);
            margin-top: 4px;
        }

        /* FAQ */
        .faq-list { max-width: 800px; margin: 0 auto; }
        .faq-item {
            background: var(--bg-secondary);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid var(--border-subtle);
            overflow: hidden;
        }
        .faq-question {
            padding: 20px 24px;
            cursor: pointer;
            display: flex; align-items: center; justify-content: space-between;
            gap: 16px;
            font-weight: 600; color: var(--text-primary);
        }
        .faq-question:hover { color: var(--accent-amber); }
        .faq-question .faq-icon { transition: transform var(--transition-fast); color: var(--accent-amber); }
        .faq-item.open .faq-icon { transform: rotate(45deg); }
        .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-muted);
            display: none;
            font-size: 0.95rem;
        }
        .faq-item.open .faq-answer { display: block; }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-felt) 0%, var(--bg-felt-deep) 100%);
            border-top: 1px solid var(--border-gold);
            border-bottom: 1px solid var(--border-gold);
            padding: var(--section-space) 0;
            text-align: center;
        }
        .cta-section .section-title { color: var(--accent-bright-gold); }
        .cta-section .btn-primary { margin-top: 20px; }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: var(--section-space-mobile) 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand p { color: var(--text-muted); font-size: 0.9rem; margin: 12px 0 16px; }
        .footer-col h4 { font-family: var(--font-heading); color: var(--accent-amber); font-size: 1.1rem; margin-bottom: 16px; }
        .footer-col ul { list-style: none; margin: 0; padding: 0; }
        .footer-col li { margin-bottom: 10px; }
        .footer-col a { color: var(--text-muted); font-size: 0.9rem; }
        .footer-col a:hover { color: var(--accent-amber); }
        .trust-badges { display: flex; flex-wrap: wrap; gap: 10px; }
        .trust-badge {
            display: inline-flex; align-items: center; gap: 6px;
            background: rgba(197,160,89,0.1);
            color: var(--accent-amber);
            border: 1px solid var(--border-gold);
            padding: 6px 12px; border-radius: var(--radius-pill);
            font-size: 0.8rem; font-weight: 600;
        }
        .copyright-text { text-align: center; color: var(--text-muted); font-size: 0.8rem; margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--border-subtle); }

        /* FAB */
        .fab-support {
            position: fixed;
            left: 20px;
            bottom: 24px;
            z-index: 90;
            width: 56px; height: 56px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 20%, #1C1C1E, #0E0E10);
            border: 2px solid var(--accent-bright-gold);
            box-shadow: 0 4px 20px rgba(255,215,0,0.3);
            display: flex; align-items: center; justify-content: center;
            color: var(--accent-bright-gold);
            font-size: 1.5rem;
            cursor: pointer;
            opacity: 0.85;
            transition: all var(--transition-base);
        }
        .fab-support:hover { opacity: 1; transform: scale(1.1); box-shadow: 0 6px 30px rgba(255,215,0,0.5); }
        .fab-support .notification-dot {
            position: absolute; top: -2px; right: -2px;
            width: 12px; height: 12px;
            background: var(--accent-red);
            border-radius: 50%;
            border: 2px solid var(--bg-primary);
            animation: blink 1.4s infinite;
        }
        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* Responsive */
        @media (max-width: 768px) {
            :root {
                --section-space: var(--section-space-mobile);
                --nav-height: var(--nav-height-mobile);
            }
            body { padding-top: var(--nav-height); }
            .main-nav {
                position: fixed;
                top: var(--nav-height);
                left: 0; right: 0;
                background: rgba(18,18,18,0.98);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 16px 20px;
                border-bottom: 1px solid var(--border-subtle);
                box-shadow: var(--shadow-lg);
                display: none;
            }
            .main-nav.open { display: flex; }
            .main-nav a { width: 100%; padding: 12px 0; border-bottom: 1px solid var(--border-subtle); }
            .nav-toggle { display: flex; }
            .header-actions .btn-login, .header-actions .btn-signup { display: inline-flex; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .bento-grid { grid-template-columns: 1fr; }
            .bento-main { grid-column: 1; grid-row: auto; min-height: 220px; }
            .bento-main img { min-height: 220px; }
            .bento-small { grid-column: 1; }
            .bento-cta { grid-column: 1; flex-direction: column; text-align: center; }
            .hero-bento { text-align: left; }
            .hero-stats { justify-content: flex-start; }
        }
        @media (max-width: 520px) {
            .header-inner { padding: 0 12px; }
            .logo span { font-size: 0.9rem; }
            .btn-login { padding: 6px 12px; font-size: 0.85rem; }
            .btn-signup { padding: 6px 14px; font-size: 0.85rem; }
            .hero-bento h1 { font-size: 1.8rem; }
            .hero-stats { gap: 12px; }
            .hero-stat .stat-number { font-size: 1.5rem; }
            .grid-benefit { grid-template-columns: 1fr; }
            .mistake-list { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
        }