/* roulang page: index */
:root {
            --primary: #0A2E1C;
            --primary-dark: #062315;
            --secondary: #123E25;
            --accent: #FFD700;
            --accent-hover: #F4C430;
            --danger: #D32F2F;
            --text: #FFFFFF;
            --text-muted: #D1F2EB;
            --text-soft: #A7C6BC;
            --bg: #0A2E1C;
            --bg-card: #123E25;
            --bg-card-hover: #1A4A2E;
            --border: rgba(255,215,0,0.25);
            --border-strong: rgba(255,215,0,0.55);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.25);
            --shadow-md: 0 8px 24px rgba(0,0,0,0.35);
            --shadow-gold: 0 4px 20px rgba(255,215,0,0.3);
            --font-main: 'Segoe UI', 'Inter', 'Helvetica Neue', Arial, sans-serif;
            --font-head: 'Segoe UI', 'Inter', 'Helvetica Neue', Arial, sans-serif;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 48px;
            --spacing-xl: 80px;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-main);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.6;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--accent); text-decoration: none; transition: color 0.2s ease, background 0.2s ease, border 0.2s ease; }
        a:hover { color: var(--accent-hover); }
        button, input, textarea, select { font-family: inherit; font-size: inherit; }
        .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 var(--spacing-sm); }

        /* Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 46, 28, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 4px 16px rgba(0,0,0,0.3);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            gap: var(--spacing-sm);
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--accent);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), #FF9F00);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: #0A2E1C;
            box-shadow: 0 0 12px rgba(255,215,0,0.5);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            display: inline-block;
            padding: 8px 14px;
            border-radius: 30px;
            color: var(--text-muted);
            font-weight: 500;
            font-size: 0.95rem;
            border: 1px solid transparent;
            transition: all 0.2s;
        }
        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--accent);
            background: rgba(255,215,0,0.1);
            border-color: var(--border);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all 0.25s ease;
            text-align: center;
            line-height: 1.2;
        }
        .btn:focus-visible,
        .nav-links a:focus-visible,
        .btn-link:focus-visible {
            outline: 3px solid #FFD700;
            outline-offset: 2px;
        }
        .btn-outline {
            background: transparent;
            color: var(--text);
            border-color: rgba(255,255,255,0.4);
        }
        .btn-outline:hover {
            background: rgba(255,255,255,0.08);
            color: var(--accent);
            border-color: var(--accent);
        }
        .btn-gold {
            background: linear-gradient(135deg, var(--accent), #FF9F00);
            color: #0A2E1C;
            box-shadow: 0 4px 12px rgba(255,215,0,0.4);
        }
        .btn-gold:hover {
            background: linear-gradient(135deg, #FFE560, #FFB800);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(255,215,0,0.55);
        }
        .btn-danger {
            background: var(--danger);
            color: #fff;
            box-shadow: 0 4px 12px rgba(210,47,47,0.4);
        }
        .btn-danger:hover {
            background: #B71C1C;
            transform: translateY(-1px);
        }
        .btn-lg { padding: 14px 28px; font-size: 1.05rem; }
        .btn-sm { padding: 8px 16px; font-size: 0.85rem; }

        /* Hero */
        .hero {
            background-image: linear-gradient(rgba(10,46,28,0.85), rgba(6,35,20,0.95)), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            padding: var(--spacing-xl) 0 var(--spacing-lg);
            border-bottom: 2px solid var(--border);
            position: relative;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 6px;
            background: linear-gradient(90deg, #FFD700, #FF9F00, #FFD700);
            opacity: 0.8;
        }
        .hero .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
            align-items: center;
        }
        .hero-content h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: var(--spacing-sm);
            color: #fff;
            letter-spacing: -0.5px;
        }
        .hero-content h1 .highlight {
            color: var(--accent);
            position: relative;
        }
        .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            margin-bottom: var(--spacing-md);
            max-width: 640px;
            line-height: 1.6;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: var(--spacing-md);
        }
        .hero-stats {
            display: flex;
            gap: var(--spacing-md);
            flex-wrap: wrap;
        }
        .stat-item {
            background: rgba(255,255,255,0.08);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            min-width: 130px;
        }
        .stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .hero-visual {
            position: relative;
        }
        .hero-visual img {
            border-radius: var(--radius-lg);
            border: 2px solid var(--border-strong);
            box-shadow: var(--shadow-gold);
            width: 100%;
            max-height: 480px;
            object-fit: cover;
        }
        .visual-badge {
            position: absolute;
            top: 20px;
            right: 20px;
            background: var(--danger);
            color: #fff;
            padding: 8px 16px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.85rem;
            box-shadow: 0 4px 12px rgba(210,47,47,0.5);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* Sections */
        section { padding: var(--spacing-lg) 0; }
        .section-header {
            max-width: 780px;
            margin-bottom: var(--spacing-md);
        }
        .section-header h2 {
            font-size: 1.9rem;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 10px;
            color: #fff;
        }
        .section-header p {
            color: var(--text-muted);
            font-size: 1rem;
        }
        .section-tag {
            display: inline-block;
            background: rgba(255,215,0,0.12);
            color: var(--accent);
            border: 1px solid var(--border);
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.4px;
            text-transform: uppercase;
            margin-bottom: 10px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-md);
        }
        .card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            transition: all 0.25s ease;
        }
        .card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-strong);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .card h3 {
            font-size: 1.25rem;
            margin-bottom: 10px;
            color: var(--accent);
        }
        .card p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }
        .icon-circle {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(255,215,0,0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 12px;
            font-size: 1.4rem;
            color: var(--accent);
        }

        /* Feature cards */
        .feature-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
            margin-top: var(--spacing-sm);
        }
        .feature-card {
            background: linear-gradient(145deg, #123E25, #0E311D);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px;
            transition: all 0.3s;
        }
        .feature-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-gold);
            transform: translateY(-3px);
        }
        .feature-card .icon-badge {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--accent);
            color: #0A2E1C;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
            margin-bottom: 14px;
        }
        .feature-card h3 { font-size: 1.15rem; margin-bottom: 8px; }
        .feature-card p { color: var(--text-muted); font-size: 0.9rem; }

        /* Comparison table */
        .compare-table {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            overflow: hidden;
        }
        .compare-header {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr 1fr;
            background: rgba(255,215,0,0.08);
            padding: 14px 18px;
            font-weight: 700;
            color: var(--accent);
            border-bottom: 1px solid var(--border);
        }
        .compare-row {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr 1fr;
            padding: 14px 18px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
            align-items: center;
        }
        .compare-row:last-child { border-bottom: none; }
        .compare-row .badge {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
        }
        .badge-high { background: #2E7D32; color: #fff; }
        .badge-medium { background: #F57F17; color: #fff; }
        .badge-fast { background: #1565C0; color: #fff; }

        /* FAQ */
        .faq-list { max-width: 860px; }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
        }
        .faq-question {
            width: 100%;
            background: transparent;
            border: none;
            padding: 18px 22px;
            font-size: 1.05rem;
            font-weight: 600;
            color: #fff;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
            text-align: left;
        }
        .faq-question:hover { color: var(--accent); }
        .faq-icon {
            font-size: 1.5rem;
            color: var(--accent);
            transition: transform 0.3s;
            flex-shrink: 0;
        }
        .faq-item.open .faq-icon { transform: rotate(45deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 22px;
            color: var(--text-muted);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        /* Content calendar */
        .calendar-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-sm);
        }
        .calendar-item {
            background: var(--bg-card);
            border-left: 4px solid var(--accent);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            padding: 14px 16px;
        }
        .calendar-date {
            font-weight: 700;
            color: var(--accent);
            font-size: 0.9rem;
        }
        .calendar-title {
            font-size: 0.95rem;
            color: #fff;
            margin-top: 4px;
        }

        /* Form */
        .cta-section {
            background: linear-gradient(135deg, #0A2E1C, #0E311D);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            margin: var(--spacing-lg) 0;
        }
        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
            align-items: center;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            margin-bottom: 6px;
            font-weight: 500;
            color: var(--text-muted);
        }
        .form-group input {
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255,255,255,0.2);
            background: rgba(0,0,0,0.25);
            color: #fff;
            font-size: 0.95rem;
            transition: border 0.2s;
        }
        .form-group input:focus {
            border-color: var(--accent);
            outline: none;
        }
        .form-hint {
            font-size: 0.8rem;
            color: var(--text-soft);
            margin-top: 6px;
        }

        /* CMS list */
        .news-list { margin-top: var(--spacing-md); }
        .news-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            border-bottom: 1px solid rgba(255,255,255,0.08);
            gap: 16px;
        }
        .news-item:last-child { border-bottom: none; }
        .news-link {
            font-weight: 600;
            font-size: 1rem;
            color: #fff;
            flex: 1;
        }
        .news-link:hover { color: var(--accent); }
        .news-meta {
            font-size: 0.85rem;
            color: var(--text-soft);
            white-space: nowrap;
        }

        /* FAB */
        .fab-left {
            position: fixed;
            left: 24px;
            bottom: 80px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(145deg, #0B0B0B, #1C1C1E);
            border: 3px solid var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            opacity: 0.7;
            box-shadow: 0 4px 20px rgba(255,215,0,0.3);
            animation: float 3s ease-in-out infinite;
            transition: all 0.3s;
        }
        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 25px rgba(255,215,0,0.6);
        }
        .fab-left .fab-icon {
            font-size: 1.6rem;
            color: var(--accent);
        }
        .fab-left .notification-dot {
            position: absolute;
            top: 6px;
            right: 6px;
            width: 12px;
            height: 12px;
            background: #E53935;
            border-radius: 50%;
            border: 2px solid #0A2E1C;
            animation: blink 1.5s infinite;
        }
        @keyframes float {
            0%,100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
        @keyframes blink {
            0%,100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* Footer */
        .site-footer {
            background: #062315;
            border-top: 2px solid var(--border);
            padding: var(--spacing-lg) 0 var(--spacing-md);
            margin-top: var(--spacing-lg);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-lg);
        }
        .footer-col h4 {
            color: var(--accent);
            font-size: 1rem;
            margin-bottom: 14px;
        }
        .footer-col ul { list-style: none; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: color 0.2s;
        }
        .footer-col ul li a:hover { color: var(--accent); }
        .footer-logo {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .footer-note {
            font-size: 0.85rem;
            color: var(--text-soft);
            max-width: 360px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: var(--spacing-md);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-soft);
        }
        .footer-bottom a {
            color: var(--accent);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero .container { grid-template-columns: 1fr; gap: 30px; }
            .hero-content h1 { font-size: 2.2rem; }
            .grid-3, .feature-row, .calendar-list { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .site-header .container { flex-wrap: wrap; height: auto; padding: 12px 0; }
            .nav-links {
                order: 3;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                display: none;
            }
            .nav-links.open { display: flex; }
            .nav-links li a { display: block; text-align: center; }
            .header-actions { order: 2; }
            .menu-toggle {
                display: inline-flex;
                order: 3;
                background: transparent;
                border: 1px solid var(--border);
                color: var(--accent);
                border-radius: 8px;
                padding: 8px 12px;
                cursor: pointer;
                font-size: 1.2rem;
            }
            .menu-toggle span { font-size: 1.4rem; }
            .hero { padding: var(--spacing-lg) 0; }
            .hero-content h1 { font-size: 1.8rem; }
            .hero-stats { gap: 10px; }
            .stat-item { min-width: 100px; padding: 12px; }
            .stat-number { font-size: 1.4rem; }
            .grid-3, .feature-row, .grid-2, .cta-grid, .calendar-list { grid-template-columns: 1fr; }
            .compare-header, .compare-row { grid-template-columns: 1fr; gap: 6px; }
            .compare-header { display: none; }
            .compare-row { padding: 12px; }
            .compare-row::before { font-weight: 700; color: var(--accent); }
            .footer-grid { grid-template-columns: 1fr; }
            .fab-left { left: 16px; bottom: 70px; width: 48px; height: 48px; }
        }
        @media (max-width: 520px) {
            .hero-content h1 { font-size: 1.6rem; }
            .btn-lg { padding: 12px 20px; font-size: 0.95rem; }
            .section-header h2 { font-size: 1.5rem; }
        }

/* roulang page: category1 */
:root {
            --primary-bg: #0A2E1C;
            --secondary-bg: #123E25;
            --accent-gold: #FFD700;
            --accent-amber: #FFBF00;
            --danger-red: #D32F2F;
            --white: #FFFFFF;
            --pale-mint: #D1F2EB;
            --muted-gold: #D4AC0D;
            --forest-light: #1B5638;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-mint: rgba(209, 242, 235, 0.15);
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
            --shadow-md: 0 8px 24px rgba(0,0,0,0.3);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.45);
            --shadow-gold: 0 4px 20px rgba(255,215,0,0.3);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --gap: 24px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-main: 'Be Vietnam Pro', sans-serif;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-main);
            background: var(--primary-bg);
            color: var(--white);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a { text-decoration: none; color: inherit; transition: color var(--transition); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        button, input, select, textarea { font-family: inherit; }
        .container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
        .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

        /* FAB */
        .fab {
            position: fixed; left: 24px; bottom: 96px; z-index: 50;
            width: 56px; height: 56px; border-radius: 50%;
            background: #1A1A1A;
            border: 3px solid var(--accent-gold);
            box-shadow: var(--shadow-gold);
            display: flex; align-items: center; justify-content: center;
            cursor: pointer; transition: all var(--transition);
            animation: fabFloat 3s ease-in-out infinite;
            text-decoration: none;
        }
        .fab i { font-size: 22px; color: var(--accent-gold); transition: transform var(--transition); }
        .fab:hover { transform: scale(1.1); opacity: 1; background: #2A2A2A; }
        .fab:hover i { transform: rotate(360deg); }
        .fab:active { transform: scale(0.95) translateY(2px); }
        .fab .notif-dot {
            position: absolute; top: -2px; right: -2px; width: 12px; height: 12px;
            background: var(--danger-red); border-radius: 50%; border: 2px solid var(--white);
            animation: blink 1.4s ease-in-out infinite;
        }
        @keyframes fabFloat { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
        @keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0.3; } }

        /* Header */
        .site-header {
            position: sticky; top: 0; z-index: 100;
            background: rgba(10, 46, 28, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-gold);
            padding: 0;
        }
        .header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
        .logo {
            font-weight: 900; font-size: 1.15rem; letter-spacing: 0.5px;
            color: var(--accent-gold); display: flex; align-items: center; gap: 10px;
            white-space: nowrap;
        }
        .logo-icon { font-size: 1.6rem; color: var(--accent-gold); }
        .nav-links { display: flex; align-items: center; gap: 8px; list-style: none; }
        .nav-links a {
            padding: 10px 18px; border-radius: 6px; font-weight: 500; font-size: 0.92rem;
            color: var(--pale-mint); transition: all var(--transition); position: relative;
            display: block;
        }
        .nav-links a:hover { color: var(--accent-gold); background: rgba(255,215,0,0.08); }
        .nav-links a.active {
            color: var(--accent-gold);
            background: rgba(255,215,0,0.12);
            font-weight: 700;
        }
        .nav-links a.active::after {
            content: ''; position: absolute; bottom: 2px; left: 18px; right: 18px;
            height: 2px; background: var(--accent-gold); border-radius: 1px;
        }
        .header-auth { display: flex; align-items: center; gap: 10px; }
        .btn-login {
            background: transparent; border: 1px solid var(--border-gold); color: var(--accent-gold);
            padding: 9px 20px; border-radius: 6px; font-weight: 600; font-size: 0.9rem;
            transition: all var(--transition); cursor: pointer;
        }
        .btn-login:hover { background: rgba(255,215,0,0.1); border-color: var(--accent-gold); }
        .btn-signup {
            background: var(--accent-gold); color: var(--primary-bg); border: none;
            padding: 10px 22px; border-radius: 6px; font-weight: 700; font-size: 0.9rem;
            transition: all var(--transition); cursor: pointer; box-shadow: 0 2px 6px rgba(255,215,0,0.3);
        }
        .btn-signup:hover { background: #FFE44D; transform: translateY(-1px); box-shadow: 0 6px 16px rgba(255,215,0,0.45); }
        .mobile-toggle { display: none; background: none; border: none; color: var(--accent-gold); font-size: 1.5rem; cursor: pointer; padding: 8px; }

        /* Hero */
        .hero {
            background: linear-gradient(135deg, #0A2E1C 0%, #123E25 50%, #1B5638 100%);
            padding: 80px 0 60px;
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: ''; position: absolute; inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover; background-position: center; opacity: 0.18;
            pointer-events: none;
        }
        .hero .container { position: relative; z-index: 1; }
        .hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
        .hero-content h1 {
            font-size: 2.8rem; font-weight: 900; line-height: 1.2;
            color: var(--white); margin-bottom: 20px;
        }
        .hero-content h1 .gold { color: var(--accent-gold); }
        .hero-content p.hero-sub {
            font-size: 1.1rem; color: var(--pale-mint); line-height: 1.65;
            margin-bottom: 28px; max-width: 540px;
        }
        .hero-badges { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 28px; }
        .hero-badge {
            display: inline-flex; align-items: center; gap: 8px;
            background: rgba(255,215,0,0.12); border: 1px solid var(--border-gold);
            padding: 8px 16px; border-radius: 999px; font-size: 0.85rem; font-weight: 600; color: var(--accent-gold);
        }
        .hero-badge i { font-size: 0.85rem; }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
        .btn-primary {
            background: linear-gradient(135deg, #FFD700, #FFBF00);
            color: #0A2E1C; padding: 14px 32px; border-radius: 8px; font-weight: 800;
            font-size: 1rem; border: none; cursor: pointer; transition: all var(--transition);
            display: inline-flex; align-items: center; gap: 10px;
            box-shadow: 0 4px 14px rgba(255,215,0,0.4);
        }
        .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(255,215,0,0.55); }
        .btn-outline {
            background: transparent; border: 2px solid var(--accent-gold); color: var(--accent-gold);
            padding: 12px 28px; border-radius: 8px; font-weight: 700; font-size: 1rem;
            cursor: pointer; transition: all var(--transition);
        }
        .btn-outline:hover { background: rgba(255,215,0,0.12); }
        .hero-visual {
            display: flex; flex-direction: column; gap: 24px; align-items: center;
        }
        .progress-ring-wrap {
            background: rgba(10,46,28,0.8); border: 2px solid var(--border-gold);
            border-radius: var(--radius-lg); padding: 28px;
            display: flex; flex-direction: column; align-items: center; gap: 16px;
            box-shadow: var(--shadow-md); width: 100%; max-width: 380px;
        }
        .ring-label { font-weight: 700; font-size: 1rem; color: var(--accent-gold); text-transform: uppercase; letter-spacing: 0.5px; }
        .ring-percent { font-size: 3.2rem; font-weight: 900; color: var(--white); line-height: 1; }
        .ring-info { font-size: 0.9rem; color: var(--pale-mint); text-align: center; }
        .tier-preview { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; width: 100%; }
        .tier-chip {
            background: rgba(255,215,0,0.08); border: 1px solid var(--border-gold);
            border-radius: 999px; padding: 8px 18px; font-weight: 600; font-size: 0.85rem;
            color: var(--accent-gold); display: flex; align-items: center; gap: 8px;
        }
        .tier-chip i { font-size: 0.8rem; }

        /* Section shared */
        .section { padding: 64px 0; }
        .section-alt { background: var(--secondary-bg); }
        .section-header { margin-bottom: 40px; }
        .section-header h2 {
            font-size: 2rem; font-weight: 800; color: var(--white);
            margin-bottom: 12px; line-height: 1.25;
        }
        .section-header h2 .gold { color: var(--accent-gold); }
        .section-header p { color: var(--pale-mint); font-size: 1rem; max-width: 680px; line-height: 1.65; }

        /* Metrics */
        .metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
        .metric-item {
            background: rgba(255,255,255,0.04); border: 1px solid var(--border-mint);
            border-radius: var(--radius-md); padding: 24px 20px; text-align: center;
            transition: all var(--transition);
        }
        .metric-item:hover { border-color: var(--border-gold); box-shadow: var(--shadow-gold); transform: translateY(-2px); }
        .metric-number { font-size: 2.2rem; font-weight: 900; color: var(--accent-gold); }
        .metric-label { font-size: 0.9rem; color: var(--pale-mint); margin-top: 6px; }

        /* Service Matrix */
        .service-matrix { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
        .service-card {
            background: rgba(255,255,255,0.04); border: 1px solid var(--border-mint);
            border-radius: var(--radius-lg); padding: 28px 24px; transition: all var(--transition);
            position: relative; overflow: hidden;
        }
        .service-card::before {
            content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-amber));
            opacity: 0; transition: opacity var(--transition);
        }
        .service-card:hover { border-color: var(--border-gold); box-shadow: var(--shadow-md); transform: translateY(-4px); }
        .service-card:hover::before { opacity: 1; }
        .service-card .icon-wrap {
            width: 48px; height: 48px; border-radius: 12px; background: rgba(255,215,0,0.12);
            display: flex; align-items: center; justify-content: center; margin-bottom: 16px;
        }
        .service-card .icon-wrap i { font-size: 1.4rem; color: var(--accent-gold); }
        .service-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; }
        .service-card p { font-size: 0.92rem; color: var(--pale-mint); line-height: 1.6; }

        /* Comparison Table */
        .compare-wrapper {
            background: rgba(255,255,255,0.03); border: 1px solid var(--border-mint);
            border-radius: var(--radius-lg); padding: 28px; overflow-x: auto;
        }
        .compare-table { width: 100%; border-collapse: collapse; min-width: 720px; }
        .compare-table th, .compare-table td {
            padding: 14px 16px; text-align: left; font-size: 0.92rem;
            border-bottom: 1px solid var(--border-mint);
        }
        .compare-table th {
            font-weight: 700; color: var(--accent-gold); background: rgba(255,215,0,0.06);
            font-size: 0.85rem; letter-spacing: 0.3px; text-transform: uppercase;
        }
        .compare-table td { color: var(--pale-mint); }
        .compare-table tr:hover td { background: rgba(255,215,0,0.04); }
        .tag-good { color: #4ADE80; font-weight: 600; }
        .tag-warn { color: var(--accent-amber); font-weight: 600; }
        .tag-best { color: var(--accent-gold); font-weight: 700; }

        /* FAQ */
        .faq-list { display: flex; flex-direction: column; gap: 16px; max-width: 820px; }
        .faq-item {
            background: rgba(255,255,255,0.04); border: 1px solid var(--border-mint);
            border-radius: var(--radius-md); overflow: hidden; transition: all var(--transition);
        }
        .faq-item:hover { border-color: var(--border-gold); }
        .faq-question {
            padding: 18px 24px; cursor: pointer; display: flex; justify-content: space-between;
            align-items: center; font-weight: 700; font-size: 1rem; color: var(--white);
            transition: all var(--transition); user-select: none;
        }
        .faq-question:hover { color: var(--accent-gold); }
        .faq-question i { transition: transform var(--transition); color: var(--accent-gold); }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer { max-height: 0; overflow: hidden; transition: max-height var(--transition) ease; }
        .faq-item.open .faq-answer { max-height: 400px; }
        .faq-answer-inner { padding: 0 24px 20px; color: var(--pale-mint); font-size: 0.95rem; line-height: 1.65; }

        /* CTA */
        .cta-section { background: linear-gradient(135deg, #1B5638, #0A2E1C); }
        .cta-box {
            background: rgba(255,215,0,0.08); border: 2px solid var(--border-gold);
            border-radius: var(--radius-lg); padding: 48px 40px; text-align: center;
            box-shadow: var(--shadow-gold); max-width: 760px; margin: 0 auto;
        }
        .cta-box h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 14px; }
        .cta-box h2 .gold { color: var(--accent-gold); }
        .cta-box p { color: var(--pale-mint); font-size: 1rem; margin-bottom: 28px; }
        .cta-box .btn-primary { font-size: 1.05rem; }

        /* Footer */
        .site-footer {
            background: #061F13; border-top: 2px solid var(--border-gold);
            padding: 48px 0 24px; margin-top: 0;
        }
        .footer-grid { display: grid; grid-template-columns: 3fr 2fr 2fr 2fr; gap: 32px; margin-bottom: 32px; }
        .footer-logo { font-size: 1.2rem; font-weight: 800; color: var(--accent-gold); margin-bottom: 12px; }
        .footer-note { font-size: 0.9rem; color: var(--pale-mint); line-height: 1.6; max-width: 320px; }
        .footer-col h4 { font-size: 1rem; font-weight: 700; color: var(--accent-gold); margin-bottom: 14px; }
        .footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
        .footer-col ul a { color: var(--pale-mint); font-size: 0.9rem; transition: color var(--transition); }
        .footer-col ul a:hover { color: var(--accent-gold); }
        .footer-bottom {
            border-top: 1px solid var(--border-mint); padding-top: 20px;
            display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
            font-size: 0.8rem; color: #8CAA95;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid { grid-template-columns: 1fr; gap: 32px; }
            .hero-content h1 { font-size: 2.2rem; }
            .metrics-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .header-inner { height: 64px; }
            .nav-links {
                display: none; position: absolute; top: 64px; left: 0; right: 0;
                background: rgba(10,46,28,0.98); flex-direction: column; padding: 16px 24px;
                border-bottom: 2px solid var(--border-gold); gap: 4px;
            }
            .nav-links.open { display: flex; }
            .nav-links a { padding: 12px 16px; font-size: 0.95rem; }
            .mobile-toggle { display: block; }
            .header-auth .btn-login, .header-auth .btn-signup { padding: 8px 16px; font-size: 0.8rem; }
            .logo { font-size: 0.95rem; }
            .section { padding: 48px 0; }
            .hero { padding: 56px 0 40px; }
            .hero-content h1 { font-size: 1.8rem; }
            .metrics-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .metric-number { font-size: 1.6rem; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
            .cta-box { padding: 32px 24px; }
            .fab { left: 16px; bottom: 72px; width: 48px; height: 48px; }
            .fab i { font-size: 18px; }
        }
        @media (max-width: 480px) {
            .container { padding: 0 16px; }
            .header-auth { gap: 6px; }
            .btn-login { padding: 7px 12px; font-size: 0.75rem; }
            .btn-signup { padding: 8px 14px; font-size: 0.75rem; }
            .logo-icon { font-size: 1.2rem; }
            .hero-content h1 { font-size: 1.5rem; }
            .hero-badges { gap: 8px; }
            .hero-badge { font-size: 0.75rem; padding: 6px 12px; }
            .btn-primary { padding: 12px 24px; font-size: 0.9rem; }
            .metrics-grid { grid-template-columns: 1fr; }
            .service-matrix { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 20px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .section-header h2 { font-size: 1.5rem; }
            .cta-box h2 { font-size: 1.4rem; }
        }

/* roulang page: article */
:root {
            --emerald-deep: #0A2E1C;
            --emerald-forest: #123E25;
            --emerald-medium: #1B4D35;
            --emerald-light: #2A5F42;
            --gold-imperial: #FFD700;
            --gold-dark: #E6C200;
            --gold-light: #FFE44D;
            --red-lucky: #D32F2F;
            --red-dark: #B71C1C;
            --white: #FFFFFF;
            --mint-pale: #D1F2EB;
            --mint-soft: #A8C5B8;
            --text-muted: #7FA090;
            --border-gold: rgba(255, 215, 0, 0.28);
            --border-gold-light: rgba(255, 215, 0, 0.45);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.18);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --radius-full: 999px;
            --space-xs: 8px;
            --space-sm: 16px;
            --space-md: 24px;
            --space-lg: 40px;
            --space-xl: 56px;
            --space-2xl: 72px;
            --font-body: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-fast: 0.18s ease;
            --max-width: 1200px;
            --reading-width: 720px;
            --sidebar-width: 320px;
        }

        *,
        *::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: 1.6;
            color: var(--white);
            background-color: var(--emerald-deep);
            background-image: radial-gradient(ellipse at 20% 20%, rgba(27, 77, 53, 0.5) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 80%, rgba(10, 46, 28, 0.9) 0%, transparent 55%);
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

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

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

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--gold-imperial);
            outline-offset: 2px;
            border-radius: 4px;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: var(--space-md);
            padding-right: var(--space-md);
        }

        /* ========== HEADER & NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-gold);
            box-shadow: 0 2px 24px rgba(0, 0, 0, 0.25);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--space-sm);
            min-height: 68px;
            padding-top: var(--space-xs);
            padding-bottom: var(--space-xs);
        }

        .logo {
            font-size: 1.05rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--gold-imperial);
            line-height: 1.25;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .logo i {
            font-size: 1.4rem;
            color: var(--gold-imperial);
        }

        .logo span {
            display: inline-block;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-links li a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--mint-pale);
            border-radius: var(--radius-full);
            transition: background var(--transition-fast), color var(--transition-fast);
            white-space: nowrap;
        }

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

        .nav-links li a.active {
            background: rgba(255, 215, 0, 0.16);
            color: var(--gold-imperial);
            font-weight: 600;
        }

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

        .btn-login {
            padding: 8px 18px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--mint-pale);
            background: transparent;
            border-radius: var(--radius-full);
            transition: color var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
        }

        .btn-login:hover {
            background: rgba(255, 255, 255, 0.08);
            color: var(--white);
        }

        .btn-signup {
            padding: 8px 22px;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--emerald-deep);
            background: var(--gold-imperial);
            border-radius: var(--radius-full);
            box-shadow: 0 2px 12px rgba(255, 215, 0, 0.3);
            transition: background var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
            white-space: nowrap;
        }

        .btn-signup:hover {
            background: var(--gold-light);
            box-shadow: 0 4px 18px rgba(255, 215, 0, 0.45);
            transform: translateY(-1px);
            color: var(--emerald-deep);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            color: var(--gold-imperial);
            font-size: 1.5rem;
            line-height: 1;
            padding: 6px 10px;
            border-radius: 8px;
            border: 1px solid var(--border-gold);
            transition: background var(--transition-fast);
        }

        .nav-toggle:hover {
            background: rgba(255, 215, 0, 0.1);
        }

        /* ========== ARTICLE BANNER ========== */
        .article-banner {
            position: relative;
            padding: calc(68px + var(--space-lg)) 0 var(--space-lg) 0;
            background-image: linear-gradient(rgba(10, 46, 28, 0.82), rgba(10, 46, 28, 0.92)),
                url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            border-bottom: 1px solid var(--border-gold);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: var(--space-sm);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--mint-soft);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb i {
            font-size: 0.6rem;
            color: var(--text-muted);
        }

        .article-banner-content h1 {
            font-size: clamp(1.5rem, 3.5vw, 2.4rem);
            font-weight: 800;
            line-height: 1.28;
            letter-spacing: -0.02em;
            color: var(--white);
            max-width: 820px;
            margin-bottom: var(--space-sm);
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            flex-wrap: wrap;
            font-size: 0.82rem;
            color: var(--mint-soft);
        }

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

        .article-meta .meta-item i {
            color: var(--gold-imperial);
            font-size: 0.78rem;
        }

        .article-meta .category-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 4px 12px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--emerald-deep);
            background: var(--gold-imperial);
            border-radius: var(--radius-full);
            letter-spacing: 0.02em;
        }

        /* ========== ARTICLE MAIN LAYOUT ========== */
        .article-main {
            padding: var(--space-lg) 0 var(--space-xl) 0;
        }

        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) var(--sidebar-width);
            gap: var(--space-lg);
            align-items: start;
        }

        .article-body-wrap {
            min-width: 0;
        }

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

        .article-featured-image img {
            width: 100%;
            border-radius: var(--radius-md);
        }

        .article-body {
            max-width: var(--reading-width);
            color: var(--mint-pale);
            line-height: 1.65;
        }

        .article-body h2 {
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--gold-imperial);
            margin-top: var(--space-lg);
            margin-bottom: var(--space-sm);
            line-height: 1.35;
            letter-spacing: -0.01em;
        }

        .article-body h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--white);
            margin-top: var(--space-md);
            margin-bottom: var(--space-xs);
            line-height: 1.4;
        }

        .article-body h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--mint-pale);
            margin-top: var(--space-md);
            margin-bottom: var(--space-xs);
        }

        .article-body p {
            margin-bottom: var(--space-sm);
            color: var(--mint-pale);
        }

        .article-body ul,
        .article-body ol {
            margin-bottom: var(--space-sm);
            padding-left: var(--space-md);
        }

        .article-body ul li {
            list-style: disc;
            margin-bottom: 6px;
            color: var(--mint-pale);
        }

        .article-body ol li {
            list-style: decimal;
            margin-bottom: 6px;
            color: var(--mint-pale);
        }

        .article-body blockquote {
            border-left: 3px solid var(--gold-imperial);
            padding: var(--space-sm) var(--space-md);
            margin: var(--space-md) 0;
            background: rgba(255, 215, 0, 0.06);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--white);
        }

        .article-body img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-sm);
            margin: var(--space-sm) 0;
        }

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

        .article-body a:hover {
            color: var(--gold-light);
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: var(--space-sm) 0;
        }

        .article-body table th,
        .article-body table td {
            padding: 10px 14px;
            border: 1px solid var(--border-gold);
            text-align: left;
            font-size: 0.88rem;
            color: var(--mint-pale);
        }

        .article-body table th {
            background: var(--emerald-medium);
            color: var(--gold-imperial);
            font-weight: 600;
        }

        .article-not-found {
            max-width: var(--reading-width);
            padding: var(--space-xl) 0;
            text-align: center;
        }

        .article-not-found i {
            font-size: 3rem;
            color: var(--text-muted);
            margin-bottom: var(--space-sm);
        }

        .article-not-found h2 {
            font-size: 1.4rem;
            color: var(--white);
            margin-bottom: var(--space-xs);
        }

        .article-not-found p {
            color: var(--mint-soft);
            margin-bottom: var(--space-md);
        }

        /* ========== SIDEBAR ========== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
            position: sticky;
            top: 88px;
        }

        .sidebar-card {
            background: var(--emerald-forest);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: var(--space-sm);
            box-shadow: var(--shadow-card);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .sidebar-card:hover {
            border-color: var(--border-gold-light);
            box-shadow: var(--shadow-gold);
        }

        .sidebar-card h3 {
            font-size: 0.92rem;
            font-weight: 700;
            color: var(--gold-imperial);
            margin-bottom: var(--space-xs);
            letter-spacing: -0.01em;
        }

        .sidebar-score {
            display: flex;
            align-items: center;
            gap: var(--space-xs);
            margin-bottom: var(--space-xs);
        }

        .sidebar-score .score-number {
            font-size: 2rem;
            font-weight: 900;
            color: var(--gold-imperial);
            line-height: 1;
        }

        .sidebar-score .score-label {
            font-size: 0.78rem;
            color: var(--mint-soft);
        }

        .sidebar-list li {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 7px 0;
            font-size: 0.8rem;
            color: var(--mint-pale);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

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

        .sidebar-list li i {
            color: var(--gold-imperial);
            font-size: 0.72rem;
            width: 16px;
            text-align: center;
        }

        .sidebar-cta-btn {
            display: block;
            text-align: center;
            padding: 12px 18px;
            font-size: 0.88rem;
            font-weight: 700;
            color: var(--emerald-deep);
            background: var(--gold-imperial);
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast), transform var(--transition-fast);
            margin-top: var(--space-xs);
        }

        .sidebar-cta-btn:hover {
            background: var(--gold-light);
            transform: translateY(-1px);
            color: var(--emerald-deep);
        }

        /* ========== FAQ SECTION ========== */
        .faq-section {
            padding: var(--space-xl) 0;
            background: var(--emerald-forest);
            border-top: 1px solid var(--border-gold);
            border-bottom: 1px solid var(--border-gold);
        }

        .faq-section .section-heading {
            max-width: var(--reading-width);
            margin-bottom: var(--space-lg);
        }

        .faq-section .section-heading h2 {
            font-size: clamp(1.3rem, 2.5vw, 1.8rem);
            font-weight: 800;
            color: var(--white);
            letter-spacing: -0.02em;
            margin-bottom: var(--space-xs);
        }

        .faq-section .section-heading p {
            font-size: 0.92rem;
            color: var(--mint-soft);
        }

        .faq-list {
            max-width: var(--reading-width);
            display: flex;
            flex-direction: column;
            gap: var(--space-xs);
        }

        .faq-item {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 215, 0, 0.15);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: border-color var(--transition-fast);
        }

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

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--space-sm);
            padding: 14px 18px;
            cursor: pointer;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--white);
            list-style: none;
            transition: background var(--transition-fast);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary:hover {
            background: rgba(255, 215, 0, 0.05);
        }

        .faq-item summary i {
            font-size: 0.72rem;
            color: var(--gold-imperial);
            transition: transform var(--transition-fast);
        }

        .faq-item[open] summary i {
            transform: rotate(180deg);
        }

        .faq-item .faq-answer {
            padding: 0 18px 14px 18px;
            font-size: 0.85rem;
            color: var(--mint-pale);
            line-height: 1.6;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            padding: var(--space-xl) 0;
            text-align: center;
            background: linear-gradient(180deg, var(--emerald-deep) 0%, var(--emerald-forest) 100%);
        }

        .cta-box {
            max-width: 640px;
            margin: 0 auto;
            padding: var(--space-lg);
            background: rgba(255, 215, 0, 0.05);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-gold);
        }

        .cta-box h2 {
            font-size: clamp(1.3rem, 2.5vw, 1.7rem);
            font-weight: 800;
            color: var(--gold-imperial);
            margin-bottom: var(--space-xs);
            letter-spacing: -0.02em;
        }

        .cta-box p {
            font-size: 0.92rem;
            color: var(--mint-pale);
            margin-bottom: var(--space-md);
        }

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

        /* ========== BUTTONS ========== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--emerald-deep);
            background: var(--gold-imperial);
            border-radius: var(--radius-full);
            transition: background var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
            box-shadow: 0 2px 14px rgba(255, 215, 0, 0.3);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--gold-light);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.45);
            transform: translateY(-2px);
            color: var(--emerald-deep);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 10px rgba(255, 215, 0, 0.25);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--white);
            background: transparent;
            border: 1.5px solid var(--border-gold-light);
            border-radius: var(--radius-full);
            transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: rgba(255, 215, 0, 0.1);
            border-color: var(--gold-imperial);
            transform: translateY(-2px);
            color: var(--gold-light);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #061A10;
            border-top: 1px solid var(--border-gold);
            padding: var(--space-xl) 0 var(--space-sm) 0;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: var(--space-lg);
            margin-bottom: var(--space-lg);
        }

        .footer-col h4 {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--gold-imperial);
            margin-bottom: var(--space-xs);
            letter-spacing: 0.02em;
            text-transform: uppercase;
        }

        .footer-col ul li {
            margin-bottom: 6px;
        }

        .footer-col ul li a {
            font-size: 0.82rem;
            color: var(--mint-soft);
            transition: color var(--transition-fast);
        }

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

        .footer-logo {
            font-size: 1.05rem;
            font-weight: 800;
            color: var(--gold-imperial);
            margin-bottom: var(--space-xs);
            letter-spacing: -0.01em;
        }

        .footer-note {
            font-size: 0.82rem;
            color: var(--mint-soft);
            line-height: 1.6;
            max-width: 360px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--space-sm);
            flex-wrap: wrap;
            padding-top: var(--space-sm);
            border-top: 1px solid rgba(255, 215, 0, 0.12);
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* ========== FAB ========== */
        .fab-support {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 58px;
            height: 58px;
            border-radius: 50%;
            background: radial-gradient(circle at 32% 28%, #2A2A2A 0%, #0D0D0D 70%);
            border: 2.5px solid var(--gold-imperial);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0.75;
            animation: fabBreathe 3.2s ease-in-out infinite;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3), inset 0 1px 2px rgba(255, 255, 255, 0.12);
            transition: transform var(--transition), opacity var(--transition), box-shadow var(--transition);
            cursor: pointer;
            -webkit-tap-highlight-color: transparent;
        }

        .fab-support:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 6px 28px rgba(255, 215, 0, 0.5), inset 0 1px 2px rgba(255, 255, 255, 0.15);
        }

        .fab-support:active {
            transform: scale(0.95) translateY(2px);
            box-shadow: 0 2px 12px rgba(255, 215, 0, 0.25);
        }

        .fab-support .fab-icon {
            font-size: 1.5rem;
            color: var(--gold-imperial);
            line-height: 1;
            transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .fab-support:hover .fab-icon {
            transform: rotate(360deg);
        }

        .fab-support .fab-notification {
            position: absolute;
            top: 4px;
            right: 4px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #FF1744;
            border: 2px solid #0D0D0D;
            box-shadow: 0 0 8px rgba(255, 23, 68, 0.7);
            animation: rubyBlink 2s ease-in-out infinite;
        }

        @keyframes fabBreathe {
            0%,
            100% {
                opacity: 0.72;
                transform: translateY(0);
            }
            50% {
                opacity: 0.9;
                transform: translateY(-4px);
            }
        }

        @keyframes rubyBlink {
            0%,
            100% {
                opacity: 1;
                box-shadow: 0 0 8px rgba(255, 23, 68, 0.7);
            }
            50% {
                opacity: 0.45;
                box-shadow: 0 0 4px rgba(255, 23, 68, 0.3);
            }
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: minmax(0, 1fr);
            }

            .article-sidebar {
                position: static;
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: var(--space-sm);
            }

            .sidebar-card {
                padding: var(--space-sm);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-md);
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
                min-height: auto;
                padding-top: 10px;
                padding-bottom: 10px;
            }

            .nav-toggle {
                display: block;
                order: 3;
            }

            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                align-items: stretch;
                gap: 2px;
                padding-top: var(--space-xs);
                padding-bottom: var(--space-xs);
                border-top: 1px solid var(--border-gold);
                order: 4;
            }

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

            .nav-links li a {
                display: block;
                padding: 10px 14px;
                font-size: 0.9rem;
                text-align: left;
                border-radius: var(--radius-sm);
            }

            .nav-actions {
                order: 2;
                gap: 6px;
            }

            .btn-login {
                padding: 7px 12px;
                font-size: 0.78rem;
            }

            .btn-signup {
                padding: 7px 14px;
                font-size: 0.78rem;
            }

            .logo {
                order: 1;
                font-size: 0.9rem;
                flex-shrink: 1;
                white-space: normal;
                max-width: 160px;
            }

            .article-banner {
                padding: calc(80px + var(--space-md)) 0 var(--space-md) 0;
            }

            .article-banner-content h1 {
                font-size: clamp(1.3rem, 4.5vw, 1.7rem);
            }

            .article-main {
                padding: var(--space-md) 0 var(--space-lg) 0;
            }

            .article-sidebar {
                grid-template-columns: 1fr;
            }

            .faq-section {
                padding: var(--space-lg) 0;
            }

            .cta-section {
                padding: var(--space-lg) 0;
            }

            .cta-box {
                padding: var(--space-md);
            }

            .cta-buttons {
                flex-direction: column;
                width: 100%;
            }

            .cta-buttons .btn-primary,
            .cta-buttons .btn-secondary {
                width: 100%;
                justify-content: center;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--space-sm);
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 4px;
            }

            .fab-support {
                width: 52px;
                height: 52px;
                left: 12px;
                bottom: 80px;
            }

            .fab-support .fab-icon {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 520px) {
            .logo {
                font-size: 0.82rem;
                max-width: 130px;
            }

            .btn-login {
                padding: 6px 10px;
                font-size: 0.72rem;
            }

            .btn-signup {
                padding: 6px 12px;
                font-size: 0.72rem;
            }

            .header-inner {
                gap: 6px;
            }

            .article-banner-content h1 {
                font-size: 1.25rem;
            }

            .article-meta {
                font-size: 0.75rem;
                gap: 8px;
            }

            .article-meta .category-tag {
                font-size: 0.7rem;
                padding: 3px 10px;
            }

            .article-body h2 {
                font-size: 1.25rem;
            }

            .article-body h3 {
                font-size: 1.08rem;
            }

            .article-body {
                line-height: 1.55;
            }

            .faq-item summary {
                font-size: 0.85rem;
                padding: 12px 14px;
            }

            .faq-item .faq-answer {
                padding: 0 14px 12px 14px;
                font-size: 0.8rem;
            }

            .container {
                padding-left: var(--space-xs);
                padding-right: var(--space-xs);
            }
        }

/* roulang page: category2 */
:root {
            --primary-bg: #0A2E1C;
            --secondary-bg: #123E25;
            --tertiary-bg: #0E3522;
            --accent-gold: #FFD700;
            --accent-gold-soft: #F0C75A;
            --lucky-red: #D32F2F;
            --lucky-red-hover: #B71C1C;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: #A8C8BC;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-gold-strong: rgba(255, 215, 0, 0.6);
            --border-green: rgba(255, 255, 255, 0.08);
            --shadow-lg: 0 18px 40px rgba(0, 0, 0, 0.45);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.3);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.25);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 32px;
            --spacing-xs: 6px;
            --spacing-sm: 12px;
            --spacing-md: 20px;
            --spacing-lg: 32px;
            --spacing-xl: 48px;
            --spacing-2xl: 72px;
            --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --font-body: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --font-display: 'Georgia', 'Times New Roman', serif;
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.62;
            color: var(--text-white);
            background-color: var(--primary-bg);
            background-image:
                radial-gradient(ellipse at 20% 10%, rgba(18, 62, 37, 0.85) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 90%, rgba(14, 53, 34, 0.9) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 50%, rgba(10, 46, 28, 0.95) 0%, #091F14 100%);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

        button {
            cursor: pointer;
            background: none;
        }

        ul {
            list-style: none;
        }

        :focus-visible {
            outline: 3px solid var(--accent-gold);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========== HEADER ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-gold);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(8, 36, 22, 0.97);
            box-shadow: 0 6px 30px rgba(0, 0, 0, 0.5);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            min-height: 72px;
            padding-top: 10px;
            padding-bottom: 10px;
        }

        .logo {
            font-family: var(--font-display);
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--accent-gold);
            letter-spacing: 0.5px;
            white-space: nowrap;
            line-height: 1.25;
            flex-shrink: 0;
            transition: var(--transition);
        }

        .logo:hover {
            color: var(--accent-gold-soft);
            text-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
        }

        .logo .logo-sub {
            display: block;
            font-size: 0.7rem;
            font-family: var(--font-body);
            font-weight: 400;
            color: var(--text-mint);
            letter-spacing: 0.8px;
            text-transform: uppercase;
        }

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

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

        .nav-links a {
            display: block;
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-mint);
            white-space: nowrap;
            transition: var(--transition);
            position: relative;
        }

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

        .nav-links a.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.15);
            border: 1px solid var(--border-gold);
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background: var(--accent-gold);
            border-radius: 4px 4px 0 0;
        }

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

        .btn-login {
            padding: 9px 20px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-white);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-login:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.06);
        }

        .btn-signup {
            padding: 9px 22px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, #FFE55C, var(--accent-gold));
            border: none;
            box-shadow: 0 4px 16px rgba(255, 215, 0, 0.35);
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-signup:hover {
            background: linear-gradient(135deg, #FFF0A0, #FFE55C);
            box-shadow: 0 6px 24px rgba(255, 215, 0, 0.55);
            transform: translateY(-1px);
        }

        .btn-signup:active {
            transform: translateY(0) scale(0.97);
            box-shadow: 0 2px 10px rgba(255, 215, 0, 0.3);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            width: 46px;
            height: 46px;
            border-radius: 10px;
            border: 1px solid var(--border-gold);
            background: rgba(255, 215, 0, 0.06);
            cursor: pointer;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .hamburger span {
            display: block;
            width: 22px;
            height: 2.5px;
            background: var(--accent-gold);
            border-radius: 4px;
            transition: var(--transition);
        }

        .hamburger:hover {
            background: rgba(255, 215, 0, 0.15);
        }

        .hamburger.active span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        /* ========== HERO ========== */
        .hero {
            padding-top: 120px;
            padding-bottom: 56px;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -200px;
            right: -150px;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -180px;
            left: -120px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(211, 47, 47, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 40px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-content {
            padding-right: 10px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--border-gold);
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .hero-badge .dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            background: #4CAF50;
            border-radius: 50%;
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.5); }
        }

        .hero-title {
            font-family: var(--font-display);
            font-size: clamp(1.9rem, 4.2vw, 3.1rem);
            font-weight: 700;
            line-height: 1.2;
            color: var(--text-white);
            margin-bottom: 18px;
            letter-spacing: -0.3px;
        }

        .hero-title .highlight {
            color: var(--accent-gold);
            position: relative;
            display: inline-block;
        }

        .hero-title .highlight::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 0;
            width: 100%;
            height: 8px;
            background: rgba(255, 215, 0, 0.25);
            border-radius: 4px;
            z-index: -1;
        }

        .hero-desc {
            font-size: 1.05rem;
            color: var(--text-mint);
            line-height: 1.65;
            margin-bottom: 26px;
            max-width: 540px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 28px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 50px;
            font-size: 0.95rem;
            font-weight: 700;
            letter-spacing: 0.3px;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-primary {
            color: #0A2E1C;
            background: linear-gradient(135deg, #FFE55C, var(--accent-gold));
            box-shadow: 0 6px 24px rgba(255, 215, 0, 0.4);
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #FFF0A0, #FFE55C);
            box-shadow: 0 10px 34px rgba(255, 215, 0, 0.55);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0) scale(0.97);
        }

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

        .btn-outline:hover {
            background: rgba(255, 215, 0, 0.1);
            border-color: var(--accent-gold);
            transform: translateY(-2px);
        }

        .btn-outline:active {
            transform: translateY(0) scale(0.97);
        }

        .hero-kpi {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
        }

        .kpi-item {
            min-width: 110px;
        }

        .kpi-number {
            font-size: 1.55rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.1;
            letter-spacing: 0.5px;
        }

        .kpi-label {
            font-size: 0.78rem;
            color: var(--text-muted);
            letter-spacing: 0.4px;
            margin-top: 3px;
        }

        .hero-image-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-gold);
            transform: rotate(-1.2deg);
            transition: var(--transition);
            aspect-ratio: 16/10;
        }

        .hero-image-wrap:hover {
            transform: rotate(0deg) scale(1.01);
            box-shadow: 0 24px 56px rgba(0, 0, 0, 0.55), var(--shadow-gold);
        }

        .hero-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .hero-image-wrap .img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 46, 28, 0.2) 0%, transparent 60%, rgba(10, 46, 28, 0.5) 100%);
            pointer-events: none;
        }

        .hero-image-wrap .badge-float {
            position: absolute;
            bottom: 18px;
            left: 18px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 0.82rem;
            font-weight: 700;
            color: #fff;
            background: rgba(211, 47, 47, 0.92);
            box-shadow: var(--shadow-md);
            letter-spacing: 0.5px;
        }

        .hero-image-wrap .badge-float i {
            color: var(--accent-gold);
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 52px 0;
            position: relative;
        }

        .section-alt {
            background: rgba(18, 62, 37, 0.45);
            border-top: 1px solid var(--border-green);
            border-bottom: 1px solid var(--border-green);
        }

        .section-header {
            margin-bottom: 34px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--accent-gold);
            text-transform: uppercase;
            letter-spacing: 2.5px;
            margin-bottom: 8px;
        }

        .section-title {
            font-family: var(--font-display);
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-white);
            margin-bottom: 12px;
        }

        .section-title .accent {
            color: var(--accent-gold);
        }

        .section-subtitle {
            font-size: 0.98rem;
            color: var(--text-mint);
            max-width: 620px;
            line-height: 1.65;
        }

        /* ========== METRICS DASHBOARD ========== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .metric-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 22px 18px;
            text-align: left;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

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

        .metric-card:hover {
            background: rgba(255, 255, 255, 0.07);
            border-color: var(--border-gold-strong);
            transform: translateY(-4px);
            box-shadow: var(--shadow-gold);
        }

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

        .metric-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.12);
            margin-bottom: 12px;
        }

        .metric-number {
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.1;
        }

        .metric-number .unit {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--accent-gold);
        }

        .metric-label {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-top: 6px;
            letter-spacing: 0.3px;
        }

        /* ========== SERVICE MATRIX ========== */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .service-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-green);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            transition: var(--transition);
            position: relative;
        }

        .service-card:hover {
            border-color: var(--border-gold);
            background: rgba(255, 215, 0, 0.05);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .service-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 14px;
            font-size: 1.4rem;
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--border-gold);
            margin-bottom: 14px;
        }

        .service-card h3 {
            font-size: 1.12rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 8px;
            line-height: 1.35;
        }

        .service-card p {
            font-size: 0.88rem;
            color: var(--text-mint);
            line-height: 1.6;
            margin-bottom: 12px;
        }

        .service-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid var(--border-gold);
        }

        .service-tag.hot {
            color: #fff;
            background: rgba(211, 47, 47, 0.75);
            border-color: rgba(211, 47, 47, 0.5);
        }

        /* ========== COMPARISON ========== */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-green);
            box-shadow: var(--shadow-lg);
        }

        .compare-panel {
            padding: 32px 28px;
            min-height: 260px;
        }

        .compare-panel.before {
            background: rgba(255, 255, 255, 0.03);
            border-right: 1px solid var(--border-green);
        }

        .compare-panel.after {
            background: rgba(255, 215, 0, 0.06);
            border-left: 3px solid var(--accent-gold);
        }

        .compare-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.8px;
            margin-bottom: 16px;
            padding: 6px 14px;
            border-radius: 50px;
        }

        .compare-panel.before .compare-label {
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.06);
        }

        .compare-panel.after .compare-label {
            color: #0A2E1C;
            background: var(--accent-gold);
        }

        .compare-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .compare-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.92rem;
            line-height: 1.55;
            color: var(--text-mint);
        }

        .compare-list li i {
            margin-top: 3px;
            flex-shrink: 0;
            font-size: 0.9rem;
        }

        .compare-panel.before .compare-list li i {
            color: #8A9B95;
        }

        .compare-panel.after .compare-list li i {
            color: var(--accent-gold);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border-green);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            background: rgba(255, 255, 255, 0.03);
            transition: var(--transition);
            overflow: hidden;
        }

        .faq-item:hover {
            border-color: var(--border-gold-strong);
            background: rgba(255, 215, 0, 0.04);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-white);
            transition: var(--transition);
            user-select: none;
            text-align: left;
            width: 100%;
        }

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

        .faq-question .faq-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--border-gold);
            flex-shrink: 0;
            transition: var(--transition);
        }

        .faq-item.open .faq-question .faq-icon {
            background: var(--accent-gold);
            color: #0A2E1C;
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 0.9rem;
            color: var(--text-mint);
            line-height: 1.7;
        }

        /* ========== CTA / FORM ========== */
        .cta-section {
            padding: 60px 0 70px;
        }

        .cta-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-xl);
            padding: 42px 40px;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }

        .cta-wrapper::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-info h2 {
            font-family: var(--font-display);
            font-size: clamp(1.5rem, 3vw, 2rem);
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 14px;
            color: var(--text-white);
        }

        .cta-info h2 .accent {
            color: var(--accent-gold);
        }

        .cta-info p {
            font-size: 0.95rem;
            color: var(--text-mint);
            line-height: 1.65;
            margin-bottom: 20px;
        }

        .cta-benefits {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .cta-benefit {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--text-mint);
            padding: 6px 14px;
            border-radius: 50px;
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid var(--border-gold);
        }

        .cta-benefit i {
            color: var(--accent-gold);
            font-size: 0.75rem;
        }

        .cta-form-wrap {
            background: rgba(10, 46, 28, 0.6);
            border: 1px solid var(--border-gold-strong);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            backdrop-filter: blur(10px);
        }

        .cta-form-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

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

        .form-group label {
            display: block;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--text-mint);
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }

        .form-group input,
        .form-group select {
            width: 100%;
            padding: 11px 16px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-green);
            color: var(--text-white);
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .form-group input::placeholder {
            color: rgba(168, 200, 188, 0.5);
        }

        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--accent-gold);
            background: rgba(255, 255, 255, 0.09);
            box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.15);
        }

        .form-group select option {
            background: var(--primary-bg);
            color: var(--text-white);
        }

        .btn-submit {
            width: 100%;
            padding: 13px 20px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: #0A2E1C;
            background: linear-gradient(135deg, #FFE55C, var(--accent-gold));
            border: none;
            box-shadow: 0 4px 16px rgba(255, 215, 0, 0.3);
            transition: var(--transition);
            cursor: pointer;
        }

        .btn-submit:hover {
            background: linear-gradient(135deg, #FFF0A0, #FFE55C);
            box-shadow: 0 6px 24px rgba(255, 215, 0, 0.5);
            transform: translateY(-1px);
        }

        .btn-submit:active {
            transform: translateY(0) scale(0.98);
        }

        .form-note {
            font-size: 0.78rem;
            color: var(--text-muted);
            text-align: center;
            margin-top: 12px;
            letter-spacing: 0.3px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: rgba(5, 20, 12, 0.8);
            border-top: 1px solid var(--border-gold);
            padding-top: 48px;
            padding-bottom: 30px;
            position: relative;
        }

        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 200px;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }

        .footer-logo {
            font-family: var(--font-display);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .footer-note {
            font-size: 0.86rem;
            color: var(--text-muted);
            line-height: 1.65;
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 14px;
            letter-spacing: 0.8px;
            text-transform: uppercase;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .footer-col ul a:hover {
            color: var(--accent-gold);
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid var(--border-green);
            font-size: 0.78rem;
            color: var(--text-muted);
            letter-spacing: 0.4px;
        }

        .footer-bottom .gold-text {
            color: var(--accent-gold);
            font-weight: 600;
        }

        /* ========== FAB ========== */
        .fab-support {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 990;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, #1C1C1E 0%, #0A0A0A 100%);
            border: 2px solid var(--accent-gold);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            opacity: 0.7;
            transition: var(--transition);
            animation: fab-float 3.2s ease-in-out infinite;
            cursor: pointer;
        }

        .fab-support i {
            font-size: 1.4rem;
            color: var(--accent-gold);
            transition: var(--transition);
        }

        .fab-support .notif-dot {
            position: absolute;
            top: 3px;
            right: 3px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--lucky-red);
            border: 2px solid #0A2E1C;
            animation: notif-blink 1.6s ease-in-out infinite;
        }

        .fab-support:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 6px 32px rgba(255, 215, 0, 0.55);
            animation-play-state: paused;
        }

        .fab-support:hover i {
            transform: rotate(360deg);
        }

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

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

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

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 6fr 6fr;
                gap: 30px;
            }

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

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

            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                min-height: 64px;
                padding-top: 8px;
                padding-bottom: 8px;
            }

            .logo {
                font-size: 1.1rem;
            }

            .logo .logo-sub {
                font-size: 0.6rem;
            }

            .hamburger {
                display: flex;
            }

            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                bottom: 0;
                background: rgba(10, 46, 28, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                align-items: stretch;
                justify-content: flex-start;
                padding: 20px 24px;
                gap: 10px;
                transform: translateX(100%);
                transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
                z-index: 100;
                overflow-y: auto;
            }

            .main-nav.open {
                transform: translateX(0);
            }

            .nav-links {
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
            }

            .nav-links a {
                padding: 12px 18px;
                font-size: 1rem;
                border-radius: var(--radius-sm);
            }

            .nav-links a.active::after {
                display: none;
            }

            .nav-actions {
                flex-direction: row;
                gap: 10px;
                padding-top: 16px;
                border-top: 1px solid var(--border-green);
            }

            .btn-login,
            .btn-signup {
                flex: 1;
                text-align: center;
                justify-content: center;
                padding: 11px 16px;
                font-size: 0.9rem;
            }

            .hero {
                padding-top: 92px;
                padding-bottom: 40px;
            }

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

            .hero-content {
                padding-right: 0;
                order: 1;
            }

            .hero-image-wrap {
                order: 2;
                transform: rotate(0deg);
                aspect-ratio: 16/10;
            }

            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }

            .hero-actions .btn {
                width: 100%;
            }

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

            .metric-card {
                padding: 16px 14px;
            }

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

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

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

            .compare-panel.before {
                border-right: none;
                border-bottom: 1px solid var(--border-green);
            }

            .compare-panel.after {
                border-left: none;
                border-top: 3px solid var(--accent-gold);
            }

            .cta-wrapper {
                grid-template-columns: 1fr;
                padding: 28px 20px;
                gap: 24px;
            }

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

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

            .fab-support {
                left: 12px;
                bottom: 80px;
                width: 48px;
                height: 48px;
            }

            .fab-support i {
                font-size: 1.2rem;
            }
        }

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

            .hero-title {
                font-size: 1.7rem;
            }

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

            .hero-kpi {
                gap: 12px;
            }

            .kpi-number {
                font-size: 1.3rem;
            }

            .kpi-label {
                font-size: 0.7rem;
            }

            .hero-image-wrap {
                aspect-ratio: 4/3;
            }

            .metrics-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .section {
                padding: 36px 0;
            }

            .section-title {
                font-size: 1.4rem;
            }

            .cta-wrapper {
                padding: 22px 16px;
                border-radius: var(--radius-lg);
            }

            .cta-form-wrap {
                padding: 20px 16px;
            }

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

            .footer-bottom {
                font-size: 0.72rem;
            }

            .fab-support {
                left: 8px;
                bottom: 72px;
                width: 44px;
                height: 44px;
            }
        }