/* roulang page: index */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-card: #0D3522;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --accent-green: #2ECC71;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: #8FB3A8;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-soft: rgba(255, 255, 255, 0.08);
            --radius-sm: 10px;
            --radius-md: 18px;
            --radius-lg: 28px;
            --radius-xl: 36px;
            --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 8px 28px rgba(255, 215, 0, 0.18);
            --font-main: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.75rem;
            --spacing-lg: 3rem;
            --spacing-xl: 5rem;
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

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

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

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 1rem;
            outline: none;
            border: none;
        }

        button {
            cursor: pointer;
        }

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* ========== NAVIGATION ========== */
        .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(10, 46, 28, 0.98);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 1rem;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 800;
            font-size: 1.2rem;
            color: var(--accent-gold);
            letter-spacing: -0.01em;
            white-space: nowrap;
            line-height: 1.2;
        }

        .brand-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent-gold), #B8860B);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #0A2E1C;
            flex-shrink: 0;
            box-shadow: 0 0 18px rgba(255, 215, 0, 0.4);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            list-style: none;
        }

        .nav-menu li a {
            display: flex;
            align-items: center;
            padding: 0.55rem 1rem;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.92rem;
            color: var(--text-mint);
            letter-spacing: 0.01em;
            transition: var(--transition);
            white-space: nowrap;
        }

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

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

        .btn-login {
            padding: 0.55rem 1.2rem;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-mint);
            background: transparent;
            border: 1px solid var(--border-soft);
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-login:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
        }

        .btn-signup {
            padding: 0.55rem 1.4rem;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.9rem;
            color: #0A2E1C;
            background: var(--accent-gold);
            box-shadow: var(--shadow-glow);
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-signup:hover {
            background: #FFE44D;
            box-shadow: 0 12px 32px rgba(255, 215, 0, 0.35);
            transform: translateY(-2px);
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-white);
            font-size: 1.6rem;
            padding: 0.3rem;
            cursor: pointer;
            transition: var(--transition);
        }

        .mobile-toggle:hover {
            color: var(--accent-gold);
        }

        /* ========== HERO ========== */
        .hero {
            position: relative;
            padding: 10rem 0 5rem;
            min-height: 100vh;
            display: flex;
            align-items: center;
            background: linear-gradient(160deg, rgba(10, 46, 28, 0.94) 0%, rgba(18, 62, 37, 0.88) 40%, rgba(10, 46, 28, 0.95) 100%), url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            border-bottom: 1px solid var(--border-gold);
            overflow: hidden;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 200px;
            background: linear-gradient(to top, var(--bg-primary), transparent);
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
        }

        .hero-text {
            max-width: 620px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.4rem 1.1rem;
            border-radius: 999px;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 0.03em;
            margin-bottom: 1.5rem;
        }

        .hero-badge .dot {
            width: 8px;
            height: 8px;
            background: var(--accent-green);
            border-radius: 50%;
            animation: pulse-dot 1.8s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { box-shadow: 0 0 0 0 rgba(46, 204, 113, 0.6); }
            50% { box-shadow: 0 0 0 8px rgba(46, 204, 113, 0); }
        }

        .hero h1 {
            font-size: 3.2rem;
            font-weight: 900;
            line-height: 1.15;
            color: var(--text-white);
            letter-spacing: -0.02em;
            margin-bottom: 1.25rem;
        }

        .hero h1 .highlight {
            background: linear-gradient(135deg, var(--accent-gold), #FFE44D);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-mint);
            line-height: 1.7;
            margin-bottom: 2rem;
            max-width: 540px;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 2.5rem;
        }

        .btn-primary {
            padding: 0.9rem 2rem;
            border-radius: 999px;
            font-weight: 700;
            font-size: 1rem;
            color: #0A2E1C;
            background: var(--accent-gold);
            box-shadow: var(--shadow-glow);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-primary:hover {
            background: #FFE44D;
            box-shadow: 0 16px 40px rgba(255, 215, 0, 0.4);
            transform: translateY(-3px);
        }

        .btn-secondary {
            padding: 0.9rem 2rem;
            border-radius: 999px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-mint);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-soft);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

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

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-soft);
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 0.2rem;
        }

        .hero-stat .stat-value {
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.2;
        }

        .hero-stat .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .hero-visual {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .hero-visual-card {
            background: rgba(13, 53, 34, 0.8);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 2rem;
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }

        .hero-visual-card::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at 70% 30%, rgba(255, 215, 0, 0.08), transparent 60%);
            pointer-events: none;
        }

        .hero-visual-card .visual-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 1.2rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .hero-visual-card .visual-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.9rem;
        }

        .hero-visual-card .visual-list li {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            font-size: 0.95rem;
            color: var(--text-mint);
        }

        .hero-visual-card .visual-list li .check-icon {
            width: 28px;
            height: 28px;
            background: rgba(46, 204, 113, 0.15);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-green);
            font-size: 0.8rem;
            flex-shrink: 0;
        }

        .hero-visual-card .visual-highlight {
            margin-top: 1.5rem;
            padding: 1.2rem;
            background: rgba(255, 215, 0, 0.06);
            border-radius: var(--radius-sm);
            border-left: 3px solid var(--accent-gold);
            font-size: 0.9rem;
            color: var(--text-mint);
        }

        /* ========== SECTION COMMON ========== */
        .section {
            padding: var(--spacing-xl) 0;
            position: relative;
        }

        .section-header {
            margin-bottom: var(--spacing-lg);
            max-width: 720px;
        }

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

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
            padding: 0.35rem 1rem;
            border-radius: 999px;
            margin-bottom: 1rem;
            border: 1px solid var(--border-gold);
        }

        .section-title {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--text-white);
            margin-bottom: 1rem;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 640px;
        }

        /* ========== OFFER LADDER ========== */
        .offer-ladder {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-soft);
            border-bottom: 1px solid var(--border-soft);
        }

        .ladder-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .ladder-step {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 2rem;
            border: 1px solid var(--border-soft);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .ladder-step:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-glow);
            transform: translateY(-4px);
        }

        .ladder-step .step-number {
            font-size: 3rem;
            font-weight: 900;
            color: rgba(255, 215, 0, 0.12);
            position: absolute;
            top: 1rem;
            right: 1.2rem;
            line-height: 1;
        }

        .ladder-step .step-icon {
            width: 48px;
            height: 48px;
            background: rgba(255, 215, 0, 0.1);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-gold);
            margin-bottom: 1.2rem;
        }

        .ladder-step h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.7rem;
        }

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

        /* ========== PACKAGE COMPARISON ========== */
        .package-comparison {
            background: var(--bg-primary);
        }

        .package-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            margin-top: var(--spacing-md);
        }

        .package-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 2.5rem 2rem;
            border: 1px solid var(--border-soft);
            transition: var(--transition);
            position: relative;
            display: flex;
            flex-direction: column;
        }

        .package-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card);
        }

        .package-card.featured {
            border: 2px solid var(--accent-gold);
            box-shadow: var(--shadow-glow);
            background: linear-gradient(160deg, rgba(255, 215, 0, 0.06), var(--bg-card));
        }

        .package-card .featured-badge {
            position: absolute;
            top: -12px;
            right: 2rem;
            background: var(--accent-gold);
            color: #0A2E1C;
            font-weight: 700;
            font-size: 0.75rem;
            padding: 0.3rem 1rem;
            border-radius: 999px;
            letter-spacing: 0.03em;
        }

        .package-card h3 {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 0.5rem;
        }

        .package-card .package-price {
            font-size: 2rem;
            font-weight: 900;
            color: var(--accent-gold);
            margin-bottom: 1.5rem;
        }

        .package-card .package-price span {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
        }

        .package-features {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            margin-bottom: 2rem;
            flex: 1;
        }

        .package-features li {
            display: flex;
            align-items: center;
            gap: 0.7rem;
            font-size: 0.92rem;
            color: var(--text-mint);
        }

        .package-features li .feature-icon {
            color: var(--accent-green);
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .package-card .btn-choose {
            width: 100%;
            padding: 0.85rem;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.95rem;
            color: #0A2E1C;
            background: var(--accent-gold);
            transition: var(--transition);
            text-align: center;
        }

        .package-card .btn-choose:hover {
            background: #FFE44D;
            box-shadow: var(--shadow-glow);
        }

        .package-card:not(.featured) .btn-choose {
            background: transparent;
            color: var(--text-mint);
            border: 1px solid var(--border-soft);
        }

        .package-card:not(.featured) .btn-choose:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            box-shadow: none;
        }

        /* ========== TRUST BAR ========== */
        .trust-bar {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-gold);
            border-bottom: 1px solid var(--border-gold);
            padding: 2.5rem 0;
        }

        .trust-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            align-items: center;
            text-align: center;
        }

        .trust-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.6rem;
        }

        .trust-item .trust-icon {
            width: 56px;
            height: 56px;
            background: rgba(255, 215, 0, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-gold);
        }

        .trust-item .trust-text {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-mint);
        }

        .trust-item .trust-sub {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* ========== NEWS SECTION ========== */
        .news-section {
            background: var(--bg-primary);
        }

        .news-layout {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 2.5rem;
            margin-top: var(--spacing-md);
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }

        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 1.2rem;
            padding: 1.5rem;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-soft);
            transition: var(--transition);
        }

        .news-item:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-glow);
            transform: translateX(4px);
        }

        .news-item .news-meta {
            display: flex;
            align-items: center;
            gap: 0.7rem;
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 0.5rem;
            flex-wrap: wrap;
        }

        .news-item .news-meta .news-tag {
            background: rgba(255, 215, 0, 0.12);
            color: var(--accent-gold);
            padding: 0.2rem 0.8rem;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.72rem;
            border: 1px solid var(--border-gold);
        }

        .news-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }

        .news-item h4 a:hover {
            color: var(--accent-gold);
        }

        .news-item .news-excerpt {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .news-sidebar {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 2rem;
            border: 1px solid var(--border-gold);
            position: relative;
            overflow: hidden;
        }

        .sidebar-card::before {
            content: '';
            position: absolute;
            top: -30%;
            left: -30%;
            width: 160%;
            height: 160%;
            background: radial-gradient(circle at 30% 30%, rgba(255, 215, 0, 0.06), transparent 60%);
            pointer-events: none;
        }

        .sidebar-card h4 {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 1rem;
            position: relative;
            z-index: 1;
        }

        .sidebar-card p {
            font-size: 0.9rem;
            color: var(--text-mint);
            line-height: 1.6;
            position: relative;
            z-index: 1;
        }

        .sidebar-card .btn-sidebar {
            display: inline-block;
            margin-top: 1.2rem;
            padding: 0.7rem 1.5rem;
            border-radius: 999px;
            background: var(--accent-gold);
            color: #0A2E1C;
            font-weight: 700;
            font-size: 0.85rem;
            transition: var(--transition);
            position: relative;
            z-index: 1;
        }

        .sidebar-card .btn-sidebar:hover {
            background: #FFE44D;
            box-shadow: var(--shadow-glow);
        }

        /* ========== LIMITED ENTRY ========== */
        .limited-entry {
            background: linear-gradient(160deg, rgba(18, 62, 37, 0.95), rgba(10, 46, 28, 0.98)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            border-top: 1px solid var(--border-gold);
            border-bottom: 1px solid var(--border-gold);
            padding: 4rem 0;
        }

        .limited-entry-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 3rem;
            flex-wrap: wrap;
        }

        .limited-entry-text h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 0.8rem;
        }

        .limited-entry-text p {
            font-size: 1rem;
            color: var(--text-mint);
            max-width: 500px;
            line-height: 1.7;
        }

        .limited-entry-cta {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            align-items: center;
        }

        .limited-entry-cta .countdown {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--accent-gold);
            letter-spacing: 0.05em;
        }

        .limited-entry-cta .btn-enter {
            padding: 1rem 2.5rem;
            border-radius: 999px;
            font-weight: 800;
            font-size: 1.1rem;
            color: #0A2E1C;
            background: var(--accent-gold);
            box-shadow: var(--shadow-glow);
            transition: var(--transition);
        }

        .limited-entry-cta .btn-enter:hover {
            background: #FFE44D;
            box-shadow: 0 20px 50px rgba(255, 215, 0, 0.45);
            transform: translateY(-4px) scale(1.03);
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--bg-primary);
        }

        .faq-list {
            max-width: 800px;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-soft);
            overflow: hidden;
            transition: var(--transition);
        }

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

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 1.3rem 1.8rem;
            background: none;
            border: none;
            color: var(--text-white);
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            cursor: pointer;
            transition: var(--transition);
        }

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

        .faq-question .faq-icon {
            font-size: 1.2rem;
            color: var(--accent-gold);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        .faq-answer-inner {
            padding: 0 1.8rem 1.5rem;
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

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

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        /* ========== FAB ========== */
        .fab-left {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 900;
            width: 56px;
            height: 56px;
            background: rgba(10, 46, 28, 0.95);
            border: 2px solid var(--accent-gold);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-gold);
            cursor: pointer;
            opacity: 0.7;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            animation: fab-breathe 3s ease-in-out infinite;
        }

        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1) rotate(360deg);
            box-shadow: 0 8px 32px rgba(255, 215, 0, 0.5);
        }

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

        @keyframes fab-breathe {
            0%, 100% { box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3); }
            50% { box-shadow: 0 8px 32px rgba(255, 215, 0, 0.5); }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #071F14;
            border-top: 1px solid var(--border-gold);
            padding: 4rem 0 2rem;
        }

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

        .footer-brand .brand-logo {
            margin-bottom: 1rem;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 1.2rem;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.7rem;
        }

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

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

        .footer-bottom {
            border-top: 1px solid var(--border-soft);
            padding-top: 2rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .footer-bottom .payment-icons {
            display: flex;
            gap: 0.8rem;
            align-items: center;
            font-size: 0.8rem;
        }

        .footer-bottom .payment-icons span {
            padding: 0.3rem 0.8rem;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 6px;
            border: 1px solid var(--border-soft);
            font-weight: 600;
        }

        .footer-bottom .copyright a {
            color: var(--text-muted);
            text-decoration: underline;
        }

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

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 3rem;
            }
            .hero {
                padding: 8rem 0 4rem;
            }
            .ladder-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .package-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .trust-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-wrapper {
                height: 64px;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(10, 46, 28, 0.98);
                flex-direction: column;
                padding: 1rem;
                border-bottom: 1px solid var(--border-gold);
                gap: 0.3rem;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li a {
                width: 100%;
                padding: 0.7rem 1rem;
                border-radius: 10px;
            }
            .mobile-toggle {
                display: block;
            }
            .btn-login,
            .btn-signup {
                padding: 0.45rem 1rem;
                font-size: 0.82rem;
            }
            .hero {
                padding: 7rem 0 3rem;
                min-height: auto;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero-stats {
                gap: 1.2rem;
            }
            .hero-stat .stat-value {
                font-size: 1.4rem;
            }
            .section {
                padding: 3rem 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .ladder-grid {
                grid-template-columns: 1fr;
            }
            .package-grid {
                grid-template-columns: 1fr;
            }
            .trust-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
            .limited-entry-content {
                flex-direction: column;
                text-align: center;
                gap: 2rem;
            }
            .limited-entry-text h2 {
                font-size: 1.8rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 1rem;
            }
            .fab-left {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                left: 0.75rem;
                bottom: 4.5rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 1rem;
            }
            .brand-logo {
                font-size: 1rem;
            }
            .brand-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 1rem;
            }
            .btn-login,
            .btn-signup {
                padding: 0.4rem 0.8rem;
                font-size: 0.75rem;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .trust-grid {
                grid-template-columns: 1fr;
            }
            .news-item {
                flex-direction: column;
                gap: 0.8rem;
            }
            .ladder-step,
            .package-card {
                padding: 1.5rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary-bg: #0A2E1C;
            --secondary-bg: #123E25;
            --tertiary-bg: #0D3521;
            --accent-gold: #FFD700;
            --accent-gold-dark: #D4AC0D;
            --accent-red: #D32F2F;
            --accent-red-hover: #B71C1C;
            --text-white: #FFFFFF;
            --text-pale-mint: #D1F2EB;
            --text-muted: #A8C9BD;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-gold-light: rgba(255, 215, 0, 0.15);
            --card-bg: rgba(255, 255, 255, 0.05);
            --card-bg-hover: rgba(255, 255, 255, 0.09);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.45);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.25);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 50px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-2xl: 80px;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            --font-primary: 'Be Vietnam Pro', 'Inter', sans-serif;
            --font-secondary: 'Inter', sans-serif;
        }

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

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

        body {
            font-family: var(--font-primary);
            background: var(--primary-bg);
            color: var(--text-white);
            line-height: 1.6;
            overflow-x: hidden;
        }

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

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

        ul,
        ol {
            list-style: none;
        }

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

        button {
            cursor: pointer;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        /* ========== HEADER & NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-gold-light);
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(10, 46, 28, 0.98);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: var(--spacing-md);
        }

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

        .logo-icon {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            border-radius: var(--radius-md);
            font-size: 18px;
            color: var(--primary-bg);
            font-weight: 900;
            box-shadow: var(--shadow-gold);
        }

        .brand-logo span:last-child {
            font-weight: 800;
            font-size: 16px;
            line-height: 1.3;
            color: var(--text-white);
            letter-spacing: -0.01em;
        }

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

        .nav-menu li a {
            display: block;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-pale-mint);
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

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

        .nav-menu li a.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.12);
            font-weight: 600;
        }

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

        .btn-login {
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-pale-mint);
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-login:hover {
            color: var(--accent-gold);
        }

        .btn-signup {
            padding: 10px 22px;
            font-size: 14px;
            font-weight: 700;
            color: var(--primary-bg);
            background: linear-gradient(135deg, var(--accent-gold), #FFC107);
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(255, 215, 0, 0.3);
            white-space: nowrap;
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.45);
        }

        .btn-signup:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(255, 215, 0, 0.3);
        }

        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

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

        .mobile-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-white);
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .mobile-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

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

        .mobile-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ========== PAGE HERO / BANNER ========== */
        .page-banner {
            padding: 140px 0 70px;
            background: linear-gradient(180deg, rgba(10, 46, 28, 0.95) 0%, rgba(10, 46, 28, 0.85) 50%, var(--primary-bg) 100%),
                url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            position: relative;
            overflow: hidden;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .banner-content {
            position: relative;
            z-index: 1;
            max-width: 800px;
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-full);
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-gold);
            margin-bottom: var(--spacing-sm);
        }

        .banner-badge i {
            font-size: 12px;
        }

        .banner-title {
            font-size: 44px;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: var(--spacing-sm);
            color: var(--text-white);
        }

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

        .banner-desc {
            font-size: 17px;
            line-height: 1.65;
            color: var(--text-pale-mint);
            max-width: 680px;
            margin-bottom: var(--spacing-lg);
        }

        .banner-stats {
            display: flex;
            gap: var(--spacing-lg);
            flex-wrap: wrap;
        }

        .banner-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .banner-stat .stat-value {
            font-size: 28px;
            font-weight: 900;
            color: var(--accent-gold);
            line-height: 1.2;
        }

        .banner-stat .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ========== MAIN CONTENT SECTIONS ========== */
        .section {
            padding: var(--spacing-xl) 0;
        }

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

        .section-header {
            margin-bottom: var(--spacing-lg);
            max-width: 720px;
        }

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

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 5px 14px;
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--border-gold-light);
            border-radius: var(--radius-full);
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-gold);
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.02em;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.015em;
            color: var(--text-white);
            margin-bottom: var(--spacing-sm);
        }

        .section-subtitle {
            font-size: 16px;
            line-height: 1.65;
            color: var(--text-muted);
        }

        /* ========== APP FEATURE GRID ========== */
        .app-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: var(--spacing-md);
        }

        .app-card {
            display: flex;
            flex-direction: column;
            background: var(--card-bg);
            border: 1px solid var(--border-gold-light);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

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

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

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

        .app-card-header {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            margin-bottom: var(--spacing-sm);
            gap: var(--spacing-sm);
        }

        .app-card-icon {
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 215, 0, 0.1);
            border-radius: var(--radius-md);
            font-size: 24px;
            color: var(--accent-gold);
            flex-shrink: 0;
        }

        .app-card-tag {
            padding: 4px 12px;
            font-size: 11px;
            font-weight: 700;
            border-radius: var(--radius-full);
            letter-spacing: 0.05em;
            white-space: nowrap;
        }

        .tag-hot {
            background: var(--accent-red);
            color: #fff;
        }

        .tag-new {
            background: rgba(255, 215, 0, 0.15);
            color: var(--accent-gold);
            border: 1px solid var(--border-gold);
        }

        .app-card-title {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-white);
        }

        .app-card-desc {
            font-size: 14px;
            line-height: 1.6;
            color: var(--text-muted);
            margin-bottom: var(--spacing-sm);
            flex-grow: 1;
        }

        .app-card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: var(--spacing-sm);
        }

        .app-card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-full);
            color: var(--text-pale-mint);
        }

        .app-card-meta span i {
            font-size: 10px;
            color: var(--accent-gold);
        }

        .btn-app-detail {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-bg);
            background: linear-gradient(135deg, var(--accent-gold), #FFC107);
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            align-self: flex-start;
        }

        .btn-app-detail:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 215, 0, 0.35);
        }

        /* ========== COMPARISON / STEPS ========== */
        .steps-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: start;
        }

        .steps-content {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }

        .step-item {
            display: flex;
            gap: var(--spacing-md);
            align-items: flex-start;
        }

        .step-number {
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 215, 0, 0.12);
            border: 2px solid var(--border-gold);
            border-radius: 50%;
            font-size: 18px;
            font-weight: 800;
            color: var(--accent-gold);
            flex-shrink: 0;
        }

        .step-body h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 4px;
        }

        .step-body p {
            font-size: 14px;
            line-height: 1.6;
            color: var(--text-muted);
        }

        .steps-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-gold-light);
        }

        .steps-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 380px;
        }

        /* ========== TIPS / ADVICE ========== */
        .tips-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }

        .tip-item {
            display: flex;
            gap: var(--spacing-md);
            padding: var(--spacing-md);
            background: var(--card-bg);
            border-left: 3px solid var(--accent-gold);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            transition: all var(--transition-fast);
        }

        .tip-item:hover {
            background: var(--card-bg-hover);
            border-left-color: var(--accent-red);
        }

        .tip-icon {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 215, 0, 0.1);
            border-radius: 50%;
            color: var(--accent-gold);
            font-size: 16px;
            flex-shrink: 0;
        }

        .tip-body h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 4px;
        }

        .tip-body p {
            font-size: 14px;
            line-height: 1.6;
            color: var(--text-muted);
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
            max-width: 800px;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border-gold-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            padding: var(--spacing-md);
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-white);
            transition: color var(--transition-fast);
            user-select: none;
        }

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

        .faq-question .faq-toggle {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
            font-size: 12px;
            transition: transform var(--transition-base);
        }

        .faq-item.active .faq-toggle {
            transform: rotate(45deg);
            background: rgba(211, 47, 47, 0.15);
            color: var(--accent-red);
        }

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

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 var(--spacing-md) var(--spacing-md);
        }

        .faq-answer p {
            font-size: 14px;
            line-height: 1.65;
            color: var(--text-muted);
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: var(--spacing-xl) 0;
            background: linear-gradient(135deg, var(--secondary-bg) 0%, var(--primary-bg) 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-box {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-lg);
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .cta-content h3 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 8px;
        }

        .cta-content p {
            font-size: 15px;
            color: var(--text-pale-mint);
            max-width: 520px;
        }

        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            font-size: 16px;
            font-weight: 700;
            color: var(--primary-bg);
            background: linear-gradient(135deg, var(--accent-gold), #FFC107);
            border-radius: var(--radius-full);
            transition: all var(--transition-base);
            box-shadow: 0 6px 24px rgba(255, 215, 0, 0.35);
        }

        .btn-cta-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(255, 215, 0, 0.5);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #062315;
            padding: var(--spacing-xl) 0 var(--spacing-md);
            border-top: 1px solid var(--border-gold-light);
        }

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

        .footer-brand .brand-logo {
            margin-bottom: var(--spacing-sm);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.65;
            color: var(--text-muted);
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: var(--spacing-sm);
        }

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

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            flex-wrap: wrap;
            padding-top: var(--spacing-md);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .copyright {
            font-size: 13px;
            color: var(--text-muted);
        }

        .copyright a {
            color: var(--accent-gold);
            transition: color var(--transition-fast);
        }

        .copyright a:hover {
            color: var(--text-white);
        }

        .payment-icons {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .payment-icons span {
            padding: 6px 14px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-sm);
            color: var(--text-pale-mint);
        }

        /* ========== FAB ========== */
        .fab-support {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 999;
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #1A0A0A;
            border: 2px solid var(--accent-gold);
            border-radius: 50%;
            font-size: 22px;
            color: var(--accent-gold);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            opacity: 0.7;
            animation: fab-breathing 3s ease-in-out infinite;
            transition: all var(--transition-base);
            cursor: pointer;
            text-decoration: none;
        }

        .fab-support:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 32px rgba(255, 215, 0, 0.45);
        }

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

        .fab-support::after {
            content: '';
            position: absolute;
            top: 2px;
            right: 2px;
            width: 10px;
            height: 10px;
            background: #D32F2F;
            border-radius: 50%;
            border: 2px solid #1A0A0A;
            animation: fab-blink 1.5s ease-in-out infinite;
        }

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

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

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .banner-title {
                font-size: 36px;
            }

            .steps-container {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }

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

        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }

            .nav-menu {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                flex-direction: column;
                background: rgba(10, 46, 28, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                border-bottom: 1px solid var(--border-gold-light);
                padding: var(--spacing-md);
                gap: 4px;
                transform: translateY(-120%);
                transition: transform var(--transition-base);
                z-index: 999;
                box-shadow: var(--shadow-lg);
            }

            .nav-menu.open {
                transform: translateY(0);
            }

            .nav-menu li a {
                padding: 12px 16px;
                font-size: 15px;
                border-radius: var(--radius-md);
            }

            .mobile-toggle {
                display: flex;
            }

            .nav-actions .btn-login {
                display: none;
            }

            .nav-actions .btn-signup {
                padding: 8px 16px;
                font-size: 13px;
            }

            .banner-title {
                font-size: 28px;
            }

            .banner-desc {
                font-size: 15px;
            }

            .banner-stats {
                gap: var(--spacing-md);
            }

            .banner-stat .stat-value {
                font-size: 22px;
            }

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

            .section-title {
                font-size: 24px;
            }

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

            .cta-box {
                flex-direction: column;
                align-items: flex-start;
            }

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

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: var(--spacing-sm);
            }

            .fab-support {
                left: 12px;
                bottom: 80px;
                width: 46px;
                height: 46px;
                font-size: 18px;
            }
        }

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

            .brand-logo span:last-child {
                font-size: 13px;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }

            .banner-title {
                font-size: 24px;
            }

            .banner-badge {
                font-size: 11px;
                padding: 4px 12px;
            }

            .banner-desc {
                font-size: 14px;
            }

            .section-title {
                font-size: 21px;
            }

            .app-card {
                padding: var(--spacing-md);
            }

            .step-item {
                flex-direction: column;
                gap: var(--spacing-sm);
            }

            .step-number {
                width: 36px;
                height: 36px;
                font-size: 15px;
            }

            .btn-signup {
                padding: 8px 14px;
                font-size: 12px;
            }

            .faq-question {
                font-size: 14px;
                padding: var(--spacing-sm);
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-card: #0D3622;
            --bg-dark: #081F13;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --accent-amber: #FF9F00;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: #A0C5B8;
            --border-gold: rgba(255, 215, 0, 0.45);
            --border-subtle: rgba(209, 242, 235, 0.14);
            --shadow-card: 0 18px 40px rgba(0, 0, 0, 0.28);
            --shadow-gold: 0 8px 24px rgba(255, 215, 0, 0.16);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Be Vietnam Pro', 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, Arial, sans-serif;
            --container-max: 1200px;
            --section-padding: 72px;
            --section-padding-mobile: 48px;
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.6;
            font-size: 16px;
            overflow-x: hidden;
        }

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

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

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

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

        button {
            cursor: pointer;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(8, 31, 19, 0.94);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.22);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 24px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--text-white);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }

        .brand-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(145deg, var(--accent-gold), #B8860B);
            color: #0A2E1C;
            border-radius: 10px;
            font-size: 1.2rem;
            box-shadow: var(--shadow-gold);
        }

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

        .nav-menu {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 6px;
        }

        .nav-menu a {
            display: inline-block;
            padding: 10px 16px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-mint);
            border-radius: 999px;
            transition: background var(--transition), color var(--transition);
            white-space: nowrap;
        }

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

        .nav-menu a.active {
            background: rgba(255, 215, 0, 0.16);
            color: var(--accent-gold);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn-login {
            padding: 10px 20px;
            background: transparent;
            color: var(--text-mint);
            font-weight: 700;
            font-size: 0.95rem;
            border-radius: 999px;
            transition: color var(--transition), background var(--transition);
        }

        .btn-login:hover {
            color: var(--accent-gold);
            background: rgba(255, 255, 255, 0.05);
        }

        .btn-signup {
            padding: 11px 24px;
            background: linear-gradient(145deg, var(--accent-gold), #DAA520);
            color: #0A2E1C;
            font-weight: 800;
            font-size: 0.95rem;
            border-radius: 999px;
            box-shadow: var(--shadow-gold);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(255, 215, 0, 0.3);
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            color: var(--text-white);
            width: 44px;
            height: 44px;
            border-radius: 10px;
            font-size: 1.5rem;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border-subtle);
        }

        /* Article Body */
        .article-page {
            padding: 48px 0 72px;
        }

        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 320px;
            gap: 40px;
            align-items: start;
        }

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

        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .article-breadcrumb a {
            color: var(--text-mint);
        }

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

        .article-breadcrumb .separator {
            opacity: 0.5;
        }

        .article-category-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255, 215, 0, 0.12);
            color: var(--accent-gold);
            font-weight: 700;
            font-size: 0.85rem;
            border-radius: 999px;
            border: 1px solid var(--border-gold);
            margin-bottom: 16px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        .article-title {
            font-size: 2.3rem;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--text-white);
            margin-bottom: 16px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            padding-bottom: 20px;
            margin-bottom: 28px;
            border-bottom: 1px solid var(--border-subtle);
            font-size: 0.9rem;
            color: var(--text-muted);
        }

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

        .article-featured-image {
            width: 100%;
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-bottom: 28px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-subtle);
            aspect-ratio: 16/8;
            object-fit: cover;
        }

        .article-content {
            font-size: 1.05rem;
            line-height: 1.75;
            color: var(--text-mint);
        }

        .article-content h2 {
            font-size: 1.65rem;
            font-weight: 800;
            color: var(--text-white);
            margin: 36px 0 16px;
            letter-spacing: -0.01em;
        }

        .article-content h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-white);
            margin: 28px 0 12px;
        }

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

        .article-content ul,
        .article-content ol {
            margin: 0 0 20px 24px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .article-content li {
            padding-left: 6px;
        }

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

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

        .article-content blockquote {
            border-left: 4px solid var(--accent-gold);
            background: rgba(255, 215, 0, 0.06);
            padding: 18px 22px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin: 24px 0;
            font-style: italic;
            color: var(--text-white);
        }

        .article-not-found {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 48px 32px;
            text-align: left;
            box-shadow: var(--shadow-card);
        }

        .article-not-found h2 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--text-white);
        }

        .article-not-found p {
            color: var(--text-muted);
            margin-bottom: 24px;
            font-size: 1.05rem;
        }

        .btn-back-home {
            display: inline-block;
            padding: 14px 28px;
            background: linear-gradient(145deg, var(--accent-gold), #DAA520);
            color: #0A2E1C;
            font-weight: 800;
            border-radius: 999px;
            box-shadow: var(--shadow-gold);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .btn-back-home:hover {
            transform: translateY(-2px);
            color: #0A2E1C;
            box-shadow: 0 14px 34px rgba(255, 215, 0, 0.3);
        }

        /* Sidebar */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
            position: sticky;
            top: 100px;
        }

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

        .sidebar-widget h4 {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-widget h4::after {
            content: '';
            flex: 1;
            height: 1px;
            background: var(--border-subtle);
        }

        .sidebar-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .sidebar-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text-mint);
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            transition: color var(--transition), transform var(--transition);
        }

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

        .sidebar-list a .dot {
            width: 8px;
            height: 8px;
            background: var(--accent-gold);
            border-radius: 50%;
            flex-shrink: 0;
        }

        .sidebar-cta {
            background: linear-gradient(160deg, #123E25, #0A2E1C);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: left;
            box-shadow: var(--shadow-gold);
        }

        .sidebar-cta h4 {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 10px;
        }

        .sidebar-cta p {
            font-size: 0.95rem;
            color: var(--text-mint);
            margin-bottom: 20px;
            line-height: 1.6;
        }

        .btn-cta-gold {
            display: inline-block;
            width: 100%;
            padding: 14px 20px;
            background: linear-gradient(145deg, var(--accent-gold), #DAA520);
            color: #0A2E1C;
            font-weight: 800;
            text-align: center;
            border-radius: 999px;
            box-shadow: var(--shadow-gold);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .btn-cta-gold:hover {
            transform: translateY(-2px);
            color: #0A2E1C;
            box-shadow: 0 14px 34px rgba(255, 215, 0, 0.32);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border-subtle);
            padding: 56px 0 32px;
            margin-top: 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-top: 16px;
            max-width: 340px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

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

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

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding-top: 24px;
            border-top: 1px solid var(--border-subtle);
        }

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

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

        .payment-icons {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .payment-icons span {
            padding: 8px 16px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-subtle);
            border-radius: 8px;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--text-mint);
            letter-spacing: 0.03em;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .article-sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .sidebar-cta {
                grid-column: 1 / -1;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-padding: var(--section-padding-mobile);
            }
            .header-inner {
                min-height: 64px;
            }
            .nav-menu {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(8, 31, 19, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border-subtle);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
                display: none;
                z-index: 99;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 14px 16px;
                font-size: 1rem;
                border-radius: 12px;
            }
            .mobile-toggle {
                display: inline-flex;
            }
            .article-title {
                font-size: 1.7rem;
            }
            .article-content {
                font-size: 1rem;
            }
            .article-sidebar {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
            .payment-icons {
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .brand-logo {
                font-size: 1rem;
            }
            .brand-logo .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 1rem;
            }
            .btn-signup {
                padding: 10px 18px;
                font-size: 0.85rem;
            }
            .btn-login {
                padding: 10px 14px;
                font-size: 0.85rem;
            }
            .article-title {
                font-size: 1.45rem;
            }
            .article-meta {
                gap: 10px;
                font-size: 0.82rem;
            }
            .article-page {
                padding: 32px 0 56px;
            }
            .sidebar-widget {
                padding: 20px;
            }
            .sidebar-cta {
                padding: 24px 20px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-deep: #0F0C20;
            --bg-ocean: #0B1A30;
            --surface: rgba(255, 255, 255, 0.04);
            --surface-strong: rgba(15, 12, 32, 0.85);
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --accent-pink: #FF007F;
            --text-primary: #FFFFFF;
            --text-secondary: #A6ACAF;
            --border-glow: rgba(0, 240, 255, 0.25);
            --border-strong: rgba(204, 255, 0, 0.5);
            --radius-sm: 12px;
            --radius-md: 18px;
            --radius-lg: 28px;
            --shadow-neon: 0 0 18px rgba(0, 240, 255, 0.25);
            --shadow-lime: 0 0 14px rgba(204, 255, 0, 0.2);
            --font-sans: 'Segoe UI', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif;
            --spacing-sm: 16px;
            --spacing-md: 32px;
            --spacing-lg: 56px;
            --spacing-xl: 80px;
            --container-max: 1200px;
            --transition: all 0.25s ease;
        }

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

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

        body {
            font-family: var(--font-sans);
            background: radial-gradient(circle at 20% 0%, #1a1533 0%, var(--bg-deep) 45%, var(--bg-ocean) 100%);
            color: var(--text-primary);
            line-height: 1.65;
            min-height: 100vh;
            overflow-x: hidden;
            font-size: 16px;
        }

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

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

        button, input, select, textarea {
            font-family: inherit;
            font-size: 1rem;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }

        /* Header & Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(10, 8, 24, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.15);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            flex-wrap: wrap;
            gap: 16px;
            padding: 12px 0;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.25rem;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            white-space: nowrap;
        }

        .logo-icon {
            font-size: 1.8rem;
            color: var(--accent-lime);
            text-shadow: 0 0 12px rgba(204, 255, 0, 0.6);
            line-height: 1;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
            flex-wrap: wrap;
        }

        .nav-menu a {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            padding: 8px 2px;
            border-bottom: 2px solid transparent;
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-menu a:hover, .nav-menu a:focus-visible {
            color: var(--accent-cyan);
            border-bottom-color: var(--accent-cyan);
        }

        .nav-menu a.active {
            color: var(--accent-lime);
            border-bottom-color: var(--accent-lime);
            font-weight: 600;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn-login {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: var(--text-primary);
            padding: 10px 18px;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            font-size: 0.9rem;
        }

        .btn-login:hover, .btn-login:focus-visible {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.2);
        }

        .btn-signup {
            background: var(--accent-lime);
            border: none;
            color: #0B1A30;
            padding: 10px 20px;
            border-radius: 30px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            font-size: 0.9rem;
            box-shadow: 0 0 14px rgba(204, 255, 0, 0.3);
        }

        .btn-signup:hover, .btn-signup:focus-visible {
            background: #d9ff2e;
            box-shadow: 0 0 20px rgba(204, 255, 0, 0.5);
            transform: translateY(-1px);
        }

        /* Hero Section */
        .hero {
            padding: var(--spacing-xl) 0 var(--spacing-lg);
            position: relative;
            overflow: hidden;
            background: linear-gradient(135deg, rgba(11, 26, 48, 0.4) 0%, rgba(15, 12, 32, 0.7) 100%);
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.15), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-grid {
            display: flex;
            align-items: center;
            gap: 48px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .hero-content {
            flex: 1 1 420px;
        }

        .hero-eyebrow {
            display: inline-block;
            background: rgba(204, 255, 0, 0.12);
            color: var(--accent-lime);
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: 20px;
            border: 1px solid rgba(204, 255, 0, 0.2);
        }

        .hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.03em;
            margin-bottom: 20px;
            max-width: 650px;
        }

        .hero h1 .highlight {
            color: var(--accent-lime);
            text-shadow: 0 0 18px rgba(204, 255, 0, 0.4);
        }

        .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 560px;
            margin-bottom: 32px;
        }

        .search-box {
            display: flex;
            gap: 12px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-glow);
            border-radius: 60px;
            padding: 6px;
            max-width: 520px;
            margin-bottom: 28px;
            align-items: center;
        }

        .search-box input {
            flex: 1;
            background: transparent;
            border: none;
            padding: 12px 18px;
            color: var(--text-primary);
            outline: none;
            font-size: 0.95rem;
        }

        .search-box input::placeholder {
            color: #6c7a8a;
        }

        .search-box button {
            background: var(--accent-cyan);
            border: none;
            color: #0B1A30;
            padding: 12px 24px;
            border-radius: 40px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .search-box button:hover {
            background: #6ff6ff;
            box-shadow: 0 0 16px rgba(0, 240, 255, 0.5);
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }

        .hero-tags span {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        .tag-chip {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 0.8rem;
            color: var(--text-primary);
            transition: var(--transition);
        }

        .tag-chip:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.2);
        }

        .hero-visual {
            flex: 0 0 320px;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-visual img {
            width: 100%;
            max-width: 320px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-neon);
            border: 1px solid var(--border-glow);
        }

        /* Main Sections */
        main {
            padding: var(--spacing-lg) 0;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-lg);
        }

        .section-heading {
            max-width: 680px;
            margin-bottom: var(--spacing-md);
        }

        .section-heading h2 {
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            line-height: 1.25;
            margin-bottom: 12px;
        }

        .section-heading p {
            color: var(--text-secondary);
            font-size: 1.05rem;
        }

        .grid-2col {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .grid-3col {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--surface);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

        .feature-icon {
            font-size: 2rem;
            color: var(--accent-lime);
            text-shadow: 0 0 12px rgba(204, 255, 0, 0.4);
        }

        .feature-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
        }

        .feature-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        .process-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            list-style: none;
        }

        .process-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: rgba(255, 255, 255, 0.03);
            padding: 18px 20px;
            border-radius: var(--radius-sm);
            border-left: 4px solid var(--accent-cyan);
        }

        .process-number {
            background: rgba(0, 240, 255, 0.12);
            color: var(--accent-cyan);
            font-weight: 700;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .process-item h4 {
            font-weight: 600;
            margin-bottom: 4px;
        }

        .process-item p {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        .highlight-box {
            background: linear-gradient(135deg, rgba(204, 255, 0, 0.08), rgba(0, 240, 255, 0.05));
            border: 1px solid rgba(204, 255, 0, 0.2);
            border-radius: var(--radius-lg);
            padding: 32px;
            display: flex;
            align-items: center;
            gap: 32px;
            flex-wrap: wrap;
        }

        .highlight-box img {
            flex: 0 0 180px;
            width: 180px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lime);
        }

        .highlight-box .content h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .highlight-box .content p {
            color: var(--text-secondary);
            margin-bottom: 18px;
        }

        .btn-primary {
            background: var(--accent-lime);
            color: #0B1A30;
            padding: 14px 28px;
            border-radius: 40px;
            font-weight: 700;
            border: none;
            cursor: pointer;
            display: inline-block;
            transition: var(--transition);
            box-shadow: 0 0 18px rgba(204, 255, 0, 0.3);
        }

        .btn-primary:hover {
            background: #d9ff2e;
            box-shadow: 0 0 28px rgba(204, 255, 0, 0.55);
            transform: translateY(-2px);
        }

        .btn-secondary {
            background: transparent;
            border: 1px solid var(--accent-cyan);
            color: var(--accent-cyan);
            padding: 12px 26px;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-secondary:hover {
            background: rgba(0, 240, 255, 0.1);
            box-shadow: 0 0 16px rgba(0, 240, 255, 0.3);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 800px;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.3);
        }

        .faq-item h4 {
            font-weight: 600;
            font-size: 1.1rem;
            margin-bottom: 8px;
        }

        .faq-item p {
            color: var(--text-secondary);
            font-size: 0.95rem;
        }

        .cta-section {
            background: linear-gradient(135deg, rgba(204, 255, 0, 0.1), rgba(0, 240, 255, 0.08));
            border-radius: var(--radius-lg);
            padding: 48px 32px;
            text-align: center;
            border: 1px solid rgba(204, 255, 0, 0.2);
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .cta-section p {
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 24px;
        }

        /* Floating Action Button - Cyber Neon */
        .fab-neon {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 999;
            background: rgba(0, 0, 0, 0.65);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 2px solid transparent;
            background-clip: padding-box;
            border-radius: 60px;
            padding: 4px;
            box-shadow: 0 0 18px rgba(0, 240, 255, 0.45);
            opacity: 0.7;
            transition: var(--transition);
            cursor: pointer;
            min-width: 56px;
            min-height: 56px;
            display: flex;
            align-items: center;
            justify-content: center;
            animation: fabPulse 2.8s infinite;
        }

        .fab-neon:hover {
            opacity: 1;
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.8);
            transform: scale(1.05);
        }

        .fab-neon span {
            font-size: 1.8rem;
            color: var(--accent-cyan);
            text-shadow: 0 0 12px rgba(0, 240, 255, 0.9);
            line-height: 1;
        }

        @keyframes fabPulse {
            0%, 100% { opacity: 0.6; box-shadow: 0 0 12px rgba(0, 240, 255, 0.3); }
            50% { opacity: 0.9; box-shadow: 0 0 24px rgba(0, 240, 255, 0.6); }
        }

        /* Footer */
        .site-footer {
            background: rgba(8, 6, 18, 0.9);
            border-top: 1px solid rgba(0, 240, 255, 0.12);
            padding: 48px 0 32px;
            margin-top: var(--spacing-lg);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-top: 12px;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul a {
            color: var(--text-secondary);
            font-size: 0.9rem;
            transition: var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        .footer-bottom a {
            color: var(--accent-cyan);
        }

        .payment-icons {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .payment-icons span {
            background: rgba(255, 255, 255, 0.06);
            padding: 6px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero h1 { font-size: 2.3rem; }
            .grid-3col { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            .nav-container { flex-direction: column; align-items: stretch; }
            .nav-menu { justify-content: center; gap: 16px; }
            .nav-actions { justify-content: center; }
            .hero-grid { flex-direction: column; align-items: stretch; gap: 32px; }
            .hero-visual { flex: 1 1 auto; }
            .hero-visual img { max-width: 260px; margin: 0 auto; }
            .grid-2col, .grid-3col { grid-template-columns: 1fr; }
            .highlight-box { flex-direction: column; align-items: flex-start; }
            .highlight-box img { flex: 0 0 auto; width: 120px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; align-items: flex-start; }
        }

        @media (max-width: 520px) {
            .hero h1 { font-size: 1.8rem; }
            .hero-subtitle { font-size: 0.95rem; }
            .search-box { flex-direction: column; border-radius: 24px; }
            .search-box button { width: 100%; }
            .nav-menu { gap: 12px; font-size: 0.85rem; }
            .btn-login, .btn-signup { padding: 8px 14px; font-size: 0.8rem; }
        }

/* roulang page: category3 */
:root {
            --primary-bg: #0F0C20;
            --secondary-bg: #0B1A30;
            --card-bg: #151230;
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --accent-pink: #FF007F;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --border-neon: rgba(0, 240, 255, 0.25);
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-lime: 0 0 12px rgba(204, 255, 0, 0.4);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --space-xs: 8px;
            --space-sm: 16px;
            --space-md: 24px;
            --space-lg: 40px;
            --space-xl: 64px;
            --space-xxl: 96px;
            --font-main: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-display: 'Be Vietnam Pro', 'Inter', 'Segoe UI', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-med: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.6;
            color: var(--text-white);
            background: var(--primary-bg);
            background-image: radial-gradient(circle at 15% 20%, rgba(0, 240, 255, 0.04) 0%, transparent 35%),
                              radial-gradient(circle at 85% 80%, rgba(204, 255, 0, 0.03) 0%, transparent 35%);
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

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

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

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

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 var(--space-md);
        }

        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(15, 12, 32, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-neon);
            transition: background var(--transition-med), box-shadow var(--transition-med);
        }

        .site-header.scrolled {
            background: rgba(15, 12, 32, 0.98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: var(--space-md);
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-white);
            letter-spacing: -0.02em;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

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

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            border-radius: 10px;
            font-size: 1.2rem;
            color: var(--primary-bg);
            box-shadow: var(--shadow-neon);
            flex-shrink: 0;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: var(--space-xs);
            list-style: none;
            margin-left: auto;
        }

        .nav-menu li a {
            display: block;
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-silver);
            border-radius: 50px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-menu li a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-menu li a.active {
            color: var(--primary-bg);
            background: var(--accent-lime);
            font-weight: 700;
            box-shadow: var(--shadow-lime);
        }

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

        .btn-login {
            padding: 8px 18px;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-white);
            border-radius: 50px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-login:hover {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
        }

        .btn-signup {
            padding: 9px 22px;
            font-size: 0.88rem;
            font-weight: 700;
            color: var(--primary-bg);
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            border-radius: 50px;
            box-shadow: var(--shadow-neon);
            transition: all var(--transition-med);
            white-space: nowrap;
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.7);
            color: var(--primary-bg);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            background: none;
            border: none;
            cursor: pointer;
            border-radius: 6px;
        }

        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-white);
            border-radius: 4px;
            transition: all var(--transition-med);
        }

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

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

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

        /* Mobile Menu Overlay */
        .mobile-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(15, 12, 32, 0.98);
            z-index: 999;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: var(--space-lg);
            opacity: 0;
            transition: opacity var(--transition-med);
        }

        .mobile-overlay.open {
            display: flex;
            opacity: 1;
        }

        .mobile-overlay .nav-menu {
            flex-direction: column;
            gap: var(--space-md);
            margin: 0;
        }

        .mobile-overlay .nav-menu li a {
            font-size: 1.3rem;
            padding: 12px 24px;
        }

        /* Hero Section */
        .hero-section {
            position: relative;
            padding: calc(72px + var(--space-xl)) 0 var(--space-xl);
            background: linear-gradient(160deg, var(--secondary-bg) 0%, var(--primary-bg) 70%);
            border-bottom: 1px solid var(--border-neon);
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 60%;
            height: 120%;
            background: radial-gradient(ellipse at center, rgba(0, 240, 255, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--space-xl);
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .hero-content {
            text-align: left;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid var(--border-neon);
            border-radius: 50px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--accent-cyan);
            letter-spacing: 0.03em;
            text-transform: uppercase;
            margin-bottom: var(--space-md);
        }

        .hero-badge::before {
            content: '';
            width: 8px;
            height: 8px;
            background: var(--accent-cyan);
            border-radius: 50%;
            box-shadow: 0 0 8px var(--accent-cyan);
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.3); }
        }

        .hero-content h1 {
            font-family: var(--font-display);
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.03em;
            margin-bottom: var(--space-md);
            background: linear-gradient(135deg, var(--text-white) 30%, var(--accent-cyan) 70%, var(--accent-lime) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-content .hero-sub {
            font-size: 1.1rem;
            color: var(--text-silver);
            line-height: 1.7;
            margin-bottom: var(--space-lg);
            max-width: 520px;
        }

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

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 28px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            color: var(--primary-bg);
            font-weight: 700;
            font-size: 1rem;
            border-radius: 50px;
            box-shadow: var(--shadow-neon);
            transition: all var(--transition-med);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.8);
            color: var(--primary-bg);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 28px;
            background: transparent;
            color: var(--text-white);
            font-weight: 600;
            font-size: 1rem;
            border-radius: 50px;
            border: 1px solid var(--border-neon);
            transition: all var(--transition-med);
        }

        .btn-secondary:hover {
            background: rgba(0, 240, 255, 0.08);
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }

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

        .hero-visual-card {
            background: var(--card-bg);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-lg);
            padding: var(--space-md);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
            position: relative;
            max-width: 480px;
            width: 100%;
        }

        .hero-visual-card img {
            border-radius: var(--radius-md);
            width: 100%;
            height: 280px;
            object-fit: cover;
        }

        .hero-visual-card .visual-info {
            padding: var(--space-md) var(--space-xs) var(--space-xs);
        }

        .hero-visual-card .visual-info h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-white);
        }

        .hero-visual-card .visual-info p {
            font-size: 0.9rem;
            color: var(--text-silver);
        }

        /* Section Shared */
        .section {
            padding: var(--space-xl) 0;
        }

        .section-header {
            margin-bottom: var(--space-lg);
            max-width: 680px;
        }

        .section-header h2 {
            font-family: var(--font-display);
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin-bottom: var(--space-sm);
            color: var(--text-white);
        }

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

        .section-label {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-cyan);
            margin-bottom: var(--space-xs);
        }

        /* Trust / Security Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-md);
            margin-top: var(--space-lg);
        }

        .step-card {
            background: var(--card-bg);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-md);
            padding: var(--space-lg);
            transition: all var(--transition-med);
            position: relative;
            overflow: hidden;
        }

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

        .step-card:hover {
            transform: translateY(-4px);
            border-color: var(--accent-cyan);
            box-shadow: 0 12px 35px rgba(0, 240, 255, 0.15);
        }

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

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            color: var(--primary-bg);
            font-weight: 800;
            font-size: 1.1rem;
            border-radius: 12px;
            margin-bottom: var(--space-sm);
            box-shadow: var(--shadow-neon);
        }

        .step-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: var(--space-xs);
            color: var(--text-white);
        }

        .step-card p {
            font-size: 0.92rem;
            color: var(--text-silver);
            line-height: 1.65;
        }

        /* Security Checklist */
        .checklist-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--space-md);
            margin-top: var(--space-lg);
        }

        .checklist-item {
            display: flex;
            align-items: flex-start;
            gap: var(--space-sm);
            padding: var(--space-md);
            background: rgba(255, 255, 255, 0.03);
            border-radius: var(--radius-sm);
            border-left: 3px solid var(--accent-cyan);
            transition: all var(--transition-fast);
        }

        .checklist-item:hover {
            background: rgba(0, 240, 255, 0.06);
            border-left-color: var(--accent-lime);
        }

        .checklist-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 240, 255, 0.15);
            border-radius: 50%;
            color: var(--accent-cyan);
            font-size: 0.9rem;
            margin-top: 2px;
        }

        .checklist-item h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 4px;
        }

        .checklist-item p {
            font-size: 0.88rem;
            color: var(--text-silver);
            line-height: 1.6;
        }

        /* Info Card */
        .info-banner {
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.08), rgba(204, 255, 0, 0.06));
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-md);
            padding: var(--space-lg);
            margin: var(--space-lg) 0;
            display: flex;
            align-items: center;
            gap: var(--space-md);
            flex-wrap: wrap;
        }

        .info-banner .banner-icon {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--accent-cyan);
            border-radius: 16px;
            font-size: 1.6rem;
            color: var(--primary-bg);
            box-shadow: var(--shadow-neon);
        }

        .info-banner .banner-text {
            flex: 1;
            min-width: 240px;
        }

        .info-banner .banner-text h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 4px;
        }

        .info-banner .banner-text p {
            font-size: 0.92rem;
            color: var(--text-silver);
        }

        /* FAQ */
        .faq-list {
            margin-top: var(--space-lg);
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.5);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--space-sm);
            padding: var(--space-md);
            cursor: pointer;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-white);
            transition: all var(--transition-fast);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 240, 255, 0.1);
            border-radius: 50%;
            font-size: 1.1rem;
            transition: all var(--transition-med);
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--accent-cyan);
            color: var(--primary-bg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-med), padding var(--transition-med);
            padding: 0 var(--space-md);
            color: var(--text-silver);
            font-size: 0.92rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 var(--space-md) var(--space-md);
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary-bg) 0%, var(--primary-bg) 60%);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-lg);
            padding: var(--space-xl) var(--space-lg);
            text-align: center;
            margin: var(--space-xl) 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: 50%;
            transform: translateX(-50%);
            width: 120%;
            height: 200%;
            background: radial-gradient(ellipse at center, rgba(0, 240, 255, 0.06) 0%, transparent 60%);
            pointer-events: none;
        }

        .cta-section h2 {
            font-family: var(--font-display);
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: var(--space-sm);
            position: relative;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: var(--text-silver);
            margin-bottom: var(--space-lg);
            position: relative;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        /* Footer */
        .site-footer {
            background: var(--secondary-bg);
            border-top: 1px solid var(--border-neon);
            padding: var(--space-xl) 0 var(--space-md);
            margin-top: var(--space-xl);
        }

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

        .footer-brand .brand-logo {
            font-size: 1.3rem;
            margin-bottom: var(--space-sm);
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-silver);
            line-height: 1.7;
            max-width: 340px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: var(--space-sm);
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

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

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--space-md);
            flex-wrap: wrap;
            padding-top: var(--space-md);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .copyright {
            font-size: 0.82rem;
            color: var(--text-silver);
        }

        .copyright a {
            color: var(--accent-cyan);
        }

        .payment-icons {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .payment-icons span {
            padding: 6px 14px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--text-silver);
            transition: all var(--transition-fast);
        }

        .payment-icons span:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }

        /* FAB */
        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            background-origin: border-box;
            background-clip: padding-box, border-box;
            border-radius: 50%;
            font-size: 1.3rem;
            color: var(--text-white);
            cursor: pointer;
            box-shadow: var(--shadow-neon);
            opacity: 0.6;
            transition: all var(--transition-med);
            animation: fab-breathe 3s ease-in-out infinite;
        }

        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.7);
        }

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

        @keyframes fab-breathe {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.05); }
        }

        .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: var(--accent-pink);
            border-radius: 50%;
            border: 2px solid var(--primary-bg);
            animation: pulse-dot 1.8s infinite;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: var(--space-lg);
            }

            .hero-content h1 {
                font-size: 2.4rem;
            }

            .hero-visual {
                order: -1;
            }

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

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

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
            }

            .nav-actions .btn-login {
                display: none;
            }

            .nav-actions .btn-signup {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-container {
                height: 64px;
            }

            .hero-section {
                padding: calc(64px + var(--space-lg)) 0 var(--space-lg);
            }

            .hero-content h1 {
                font-size: 2rem;
            }

            .section-header h2 {
                font-size: 1.7rem;
            }

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

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

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

            .cta-section h2 {
                font-size: 1.5rem;
            }

            .info-banner {
                flex-direction: column;
                align-items: flex-start;
            }
        }

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

            .hero-content h1 {
                font-size: 1.7rem;
            }

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

            .hero-actions {
                flex-direction: column;
            }

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

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

            .section-header h2 {
                font-size: 1.4rem;
            }

            .step-card {
                padding: var(--space-md);
            }

            .fab-left {
                width: 46px;
                height: 46px;
                left: 10px;
                bottom: 80px;
                font-size: 1.1rem;
            }
        }