/* roulang page: index */
:root {
            --primary-bg: #0A2E1C;
            --secondary-bg: #123E25;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-soft: #A8C9BB;
            --border-gold: rgba(255, 215, 0, 0.35);
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.25);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.3);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --font-primary: 'Be Vietnam Pro', 'Segoe UI', Roboto, Arial, sans-serif;
            --transition-base: 0.25s ease;
            --transition-slow: 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.75rem;
            --spacing-lg: 3rem;
            --spacing-xl: 4.5rem;
            --spacing-2xl: 6rem;
        }

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

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

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

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

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

        a:hover {
            color: #FFE44D;
        }

        button,
        .button {
            cursor: pointer;
            font-family: inherit;
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }

        .container-wide {
            max-width: 1440px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }

        /* ===== HEADER / NAV ===== */
        .site-header {
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 215, 0, 0.18);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: background var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(10, 46, 28, 0.98);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 0.9rem 0;
            gap: 0.75rem;
        }

        .logo {
            font-size: 1.05rem;
            font-weight: 800;
            color: var(--accent-gold);
            letter-spacing: -0.01em;
            line-height: 1.25;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .logo i {
            font-size: 1.45rem;
            color: var(--accent-gold);
        }

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

        .main-nav a {
            color: var(--text-mint);
            font-weight: 600;
            font-size: 0.92rem;
            padding: 0.5rem 0.85rem;
            border-radius: 999px;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .main-nav a:hover {
            color: var(--text-white);
            background: rgba(255, 215, 0, 0.12);
        }

        .main-nav a.active {
            color: var(--primary-bg);
            background: var(--accent-gold);
            font-weight: 700;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.65rem;
        }

        .btn-login {
            color: var(--text-white);
            font-weight: 700;
            font-size: 0.9rem;
            padding: 0.55rem 1.1rem;
            background: transparent;
            border: none;
            transition: color var(--transition-base);
        }

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

        .btn-signup {
            background: var(--accent-gold);
            color: var(--primary-bg);
            font-weight: 800;
            font-size: 0.9rem;
            padding: 0.6rem 1.35rem;
            border-radius: 999px;
            border: none;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
        }

        .btn-signup:hover {
            background: #FFE44D;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.45);
            color: var(--primary-bg);
        }

        .nav-toggle {
            display: none;
            background: rgba(255, 215, 0, 0.15);
            border: 1px solid rgba(255, 215, 0, 0.3);
            color: var(--accent-gold);
            font-size: 1.3rem;
            padding: 0.45rem 0.75rem;
            border-radius: 8px;
        }

        /* ===== HERO ===== */
        .hero-section {
            background: linear-gradient(160deg, #071F13 0%, var(--primary-bg) 50%, #0D3A24 100%);
            position: relative;
            padding: 4rem 0 5rem;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -15%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(211, 47, 47, 0.07) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 2.5rem;
            align-items: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid rgba(255, 215, 0, 0.35);
            color: var(--accent-gold);
            font-weight: 700;
            font-size: 0.85rem;
            padding: 0.5rem 1.1rem;
            border-radius: 999px;
            margin-bottom: 1.5rem;
        }

        .hero-title {
            font-size: 2.7rem;
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 1.25rem;
            color: var(--text-white);
        }

        .hero-title .highlight {
            color: var(--accent-gold);
            background: linear-gradient(120deg, #FFD700 0%, #FFE44D 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 1.05rem;
            color: var(--text-mint);
            line-height: 1.65;
            margin-bottom: 2rem;
            max-width: 540px;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: center;
            margin-bottom: 2rem;
        }

        .btn-primary {
            background: var(--accent-gold);
            color: var(--primary-bg);
            font-weight: 800;
            font-size: 1rem;
            padding: 0.85rem 1.8rem;
            border-radius: 999px;
            border: none;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-primary:hover {
            background: #FFE44D;
            transform: translateY(-3px);
            box-shadow: 0 10px 32px rgba(255, 215, 0, 0.5);
            color: var(--primary-bg);
        }

        .btn-secondary {
            background: transparent;
            color: var(--text-white);
            font-weight: 700;
            font-size: 1rem;
            padding: 0.85rem 1.8rem;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            transition: all var(--transition-base);
            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: 1.5rem;
        }

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

        .hero-stat-number {
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--accent-gold);
            line-height: 1.2;
        }

        .hero-stat-label {
            font-size: 0.82rem;
            color: var(--text-soft);
        }

        .hero-visual {
            background: rgba(18, 62, 37, 0.75);
            border: 1px solid rgba(255, 215, 0, 0.3);
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            box-shadow: var(--shadow-card);
            position: relative;
        }

        .hero-visual::before {
            content: '';
            position: absolute;
            top: -1px;
            left: 20%;
            right: 20%;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
            border-radius: 999px;
        }

        .hero-visual img {
            border-radius: var(--radius-md);
            margin-bottom: 1.25rem;
            width: 100%;
            object-fit: cover;
            aspect-ratio: 16/9;
        }

        .hero-visual-content h3 {
            font-size: 1.25rem;
            font-weight: 800;
            margin-bottom: 0.6rem;
            color: var(--text-white);
        }

        .hero-visual-content p {
            font-size: 0.92rem;
            color: var(--text-mint);
            line-height: 1.6;
        }

        /* ===== SECTION COMMON ===== */
        .section {
            padding: 4rem 0;
            position: relative;
        }

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

        .section-header {
            margin-bottom: 2.5rem;
            max-width: 760px;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid rgba(255, 215, 0, 0.25);
            padding: 0.35rem 0.9rem;
            border-radius: 999px;
            margin-bottom: 0.9rem;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -0.01em;
            color: var(--text-white);
            margin-bottom: 0.75rem;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-mint);
            line-height: 1.65;
        }

        /* ===== VERTICAL SOCIAL / SEEDING ===== */
        .social-seeding-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 2.5rem;
            align-items: center;
        }

        .seeding-visual {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
        }

        .seeding-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid rgba(255, 215, 0, 0.25);
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-slow), box-shadow var(--transition-slow);
        }

        .seeding-img:hover {
            transform: translateY(-6px);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
        }

        .seeding-img img {
            width: 100%;
            aspect-ratio: 4/5;
            object-fit: cover;
        }

        .seeding-bubbles {
            display: flex;
            flex-direction: column;
            gap: 1.1rem;
        }

        .bubble-item {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-md);
            padding: 1.1rem 1.3rem;
            display: flex;
            align-items: flex-start;
            gap: 0.9rem;
            transition: all var(--transition-base);
        }

        .bubble-item:hover {
            border-color: rgba(255, 215, 0, 0.4);
            background: rgba(255, 215, 0, 0.07);
        }

        .bubble-avatar {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, #FFD700, #D32F2F);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            color: var(--primary-bg);
            font-size: 0.95rem;
        }

        .bubble-content p {
            font-size: 0.9rem;
            color: var(--text-mint);
            line-height: 1.55;
            margin-bottom: 0.3rem;
        }

        .bubble-content strong {
            color: var(--text-white);
            font-weight: 700;
        }

        .bubble-meta {
            font-size: 0.78rem;
            color: var(--text-soft);
        }

        /* ===== BESTSELLER LIST ===== */
        .bestseller-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .bestseller-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 215, 0, 0.2);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

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

        .bestseller-card:hover {
            border-color: rgba(255, 215, 0, 0.5);
            transform: translateY(-6px);
            box-shadow: 0 14px 36px rgba(0, 0, 0, 0.3);
        }

        .bestseller-rank {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 800;
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.12);
            padding: 0.3rem 0.8rem;
            border-radius: 999px;
            margin-bottom: 0.9rem;
        }

        .bestseller-card h3 {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 0.6rem;
        }

        .bestseller-card p {
            font-size: 0.9rem;
            color: var(--text-mint);
            line-height: 1.55;
            margin-bottom: 1rem;
        }

        .bestseller-meta {
            display: flex;
            gap: 1.2rem;
            font-size: 0.8rem;
            color: var(--text-soft);
        }

        .bestseller-meta span i {
            color: var(--accent-gold);
            margin-right: 0.3rem;
        }

        /* ===== REVIEW WALL ===== */
        .review-wall {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .review-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 1.75rem;
            transition: all var(--transition-base);
        }

        .review-card:hover {
            border-color: rgba(255, 215, 0, 0.3);
            background: rgba(255, 215, 0, 0.05);
        }

        .review-stars {
            color: var(--accent-gold);
            font-size: 0.95rem;
            margin-bottom: 1rem;
            letter-spacing: 2px;
        }

        .review-text {
            font-size: 0.95rem;
            color: var(--text-mint);
            line-height: 1.6;
            margin-bottom: 1.25rem;
            font-style: italic;
        }

        .review-author {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }

        .review-author-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            color: var(--primary-bg);
            font-size: 0.85rem;
        }

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

        .review-author-meta {
            font-size: 0.75rem;
            color: var(--text-soft);
        }

        /* ===== NEWS / CMS ===== */
        .news-layout {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 2.5rem;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .news-item {
            display: flex;
            gap: 1.1rem;
            padding: 1.1rem 1.25rem;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-sm);
            transition: all var(--transition-base);
            align-items: center;
        }

        .news-item:hover {
            border-color: rgba(255, 215, 0, 0.35);
            background: rgba(255, 215, 0, 0.05);
            transform: translateX(4px);
        }

        .news-item-icon {
            flex-shrink: 0;
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: rgba(255, 215, 0, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.2rem;
        }

        .news-item-content {
            flex: 1;
        }

        .news-item-title {
            font-weight: 700;
            color: var(--text-white);
            font-size: 0.98rem;
            margin-bottom: 0.25rem;
            transition: color var(--transition-base);
        }

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

        .news-item-meta {
            font-size: 0.78rem;
            color: var(--text-soft);
            display: flex;
            gap: 0.8rem;
        }

        .news-sidebar {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 215, 0, 0.2);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            align-self: start;
        }

        .news-sidebar h3 {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 1.2rem;
            padding-bottom: 0.7rem;
            border-bottom: 1px solid rgba(255, 215, 0, 0.2);
        }

        .news-sidebar-list {
            display: flex;
            flex-direction: column;
            gap: 0.9rem;
        }

        .news-sidebar-item {
            display: flex;
            gap: 0.8rem;
            align-items: flex-start;
        }

        .news-sidebar-num {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255, 215, 0, 0.15);
            color: var(--accent-gold);
            font-weight: 800;
            font-size: 0.75rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .news-sidebar-item a {
            color: var(--text-mint);
            font-size: 0.88rem;
            font-weight: 600;
            line-height: 1.45;
        }

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

        /* ===== COLLECTION CATALOG ===== */
        .catalog-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .catalog-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 215, 0, 0.2);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .catalog-card:hover {
            border-color: rgba(255, 215, 0, 0.5);
            transform: translateY(-6px);
            box-shadow: var(--shadow-card);
        }

        .catalog-card img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
        }

        .catalog-card-body {
            padding: 1.3rem;
        }

        .catalog-card-body h3 {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 0.5rem;
        }

        .catalog-card-body p {
            font-size: 0.88rem;
            color: var(--text-mint);
            line-height: 1.5;
            margin-bottom: 0.9rem;
        }

        .catalog-count {
            font-size: 0.78rem;
            color: var(--accent-gold);
            font-weight: 700;
        }

        /* ===== SCENARIO DEMO ===== */
        .scenario-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2.5rem;
            align-items: center;
        }

        .scenario-steps {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .scenario-step {
            display: flex;
            gap: 1.1rem;
            align-items: flex-start;
        }

        .scenario-step-num {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold), #B8860B);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1.1rem;
            color: var(--primary-bg);
            box-shadow: var(--shadow-gold);
        }

        .scenario-step h4 {
            font-size: 1.05rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 0.35rem;
        }

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

        .scenario-visual {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid rgba(255, 215, 0, 0.25);
            box-shadow: var(--shadow-card);
        }

        .scenario-visual img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
        }

        /* ===== PLAN COMPARISON ===== */
        .plan-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .plan-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 1.75rem;
            transition: all var(--transition-base);
            position: relative;
        }

        .plan-card.featured {
            background: rgba(255, 215, 0, 0.08);
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-gold);
        }

        .plan-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent-red);
            color: var(--text-white);
            font-size: 0.72rem;
            font-weight: 800;
            padding: 0.3rem 1rem;
            border-radius: 999px;
            white-space: nowrap;
        }

        .plan-card h3 {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 0.75rem;
        }

        .plan-price {
            font-size: 2rem;
            font-weight: 900;
            color: var(--accent-gold);
            margin-bottom: 1rem;
        }

        .plan-price span {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-soft);
        }

        .plan-features {
            list-style: none;
            margin-bottom: 1.5rem;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }

        .plan-features li {
            font-size: 0.88rem;
            color: var(--text-mint);
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .plan-features li i {
            color: var(--accent-gold);
            font-size: 0.8rem;
        }

        .btn-plan {
            display: block;
            width: 100%;
            text-align: center;
            background: transparent;
            border: 1px solid rgba(255, 215, 0, 0.4);
            color: var(--accent-gold);
            font-weight: 800;
            font-size: 0.9rem;
            padding: 0.75rem;
            border-radius: 999px;
            transition: all var(--transition-base);
        }

        .btn-plan:hover {
            background: var(--accent-gold);
            color: var(--primary-bg);
        }

        .plan-card.featured .btn-plan {
            background: var(--accent-gold);
            color: var(--primary-bg);
        }

        .plan-card.featured .btn-plan:hover {
            background: #FFE44D;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 820px;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .faq-item {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            border-color: rgba(255, 215, 0, 0.3);
        }

        .faq-question {
            padding: 1.15rem 1.4rem;
            font-weight: 700;
            color: var(--text-white);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            font-size: 0.98rem;
            user-select: none;
        }

        .faq-question i {
            color: var(--accent-gold);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }

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

        .faq-answer-inner {
            padding: 0 1.4rem 1.3rem;
            font-size: 0.9rem;
            color: var(--text-mint);
            line-height: 1.65;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #0A2E1C 0%, #123E25 50%, #0D3A24 100%);
            border-top: 1px solid rgba(255, 215, 0, 0.2);
            border-bottom: 1px solid rgba(255, 215, 0, 0.2);
            padding: 4rem 0;
        }

        .cta-inner {
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 2rem;
            align-items: center;
        }

        .cta-inner h2 {
            font-size: 1.9rem;
            font-weight: 900;
            color: var(--text-white);
            margin-bottom: 0.75rem;
        }

        .cta-inner p {
            color: var(--text-mint);
            font-size: 1rem;
            line-height: 1.6;
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: #061A11;
            border-top: 1px solid rgba(255, 215, 0, 0.2);
            padding: 3rem 0 2rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-brand {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 1rem;
        }

        .footer-brand i {
            margin-right: 0.5rem;
        }

        .footer-desc {
            font-size: 0.88rem;
            color: var(--text-soft);
            line-height: 1.6;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 1rem;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }

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

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 215, 0, 0.15);
            padding-top: 1.5rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            font-size: 0.8rem;
            color: var(--text-soft);
        }

        .footer-badges {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            align-items: center;
        }

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid rgba(255, 215, 0, 0.2);
            border-radius: 999px;
            padding: 0.35rem 0.9rem;
            font-size: 0.75rem;
            color: var(--accent-gold);
            font-weight: 700;
        }

        /* ===== FAB ===== */
        .fab-royal {
            position: fixed;
            left: 1.2rem;
            bottom: 6rem;
            z-index: 90;
            width: 58px;
            height: 58px;
            border-radius: 50%;
            background: linear-gradient(145deg, #1A1A1A, #0A0A0A);
            border: 2px solid var(--accent-gold);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.5rem;
            cursor: pointer;
            opacity: 0.7;
            transition: all var(--transition-base);
            animation: fabBreathing 3s ease-in-out infinite;
        }

        .fab-royal:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 32px rgba(255, 215, 0, 0.55);
        }

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

        .fab-notification {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent-red);
            border: 2px solid #0A2E1C;
            animation: fabBlink 1.5s ease-in-out infinite;
        }

        @keyframes fabBreathing {
            0%, 100% { box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3); }
            50% { box-shadow: 0 4px 32px rgba(255, 215, 0, 0.55); }
        }

        @keyframes fabBlink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .hero-title {
                font-size: 2.2rem;
            }

            .bestseller-list,
            .review-wall,
            .catalog-grid,
            .plan-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .news-layout {
                grid-template-columns: 1fr;
            }

            .social-seeding-grid,
            .scenario-grid {
                grid-template-columns: 1fr;
            }

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

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: nowrap;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--primary-bg);
                flex-direction: column;
                padding: 1rem 1.25rem;
                border-bottom: 1px solid rgba(255, 215, 0, 0.25);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
                gap: 0.25rem;
            }

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

            .main-nav a {
                padding: 0.7rem 0.85rem;
                font-size: 0.95rem;
                width: 100%;
            }

            .nav-toggle {
                display: block;
            }

            .nav-actions {
                margin-left: auto;
            }

            .btn-login {
                padding: 0.5rem 0.7rem;
                font-size: 0.82rem;
            }

            .btn-signup {
                padding: 0.5rem 1rem;
                font-size: 0.82rem;
            }

            .hero-title {
                font-size: 1.8rem;
            }

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

            .bestseller-list,
            .review-wall,
            .catalog-grid,
            .plan-grid {
                grid-template-columns: 1fr;
            }

            .cta-inner {
                grid-template-columns: 1fr;
                text-align: left;
            }

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

            .section {
                padding: 3rem 0;
            }

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

            .fab-royal {
                width: 50px;
                height: 50px;
                font-size: 1.2rem;
                left: 0.8rem;
                bottom: 5rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.5rem;
            }

            .hero-cta-group {
                flex-direction: column;
                align-items: stretch;
            }

            .btn-primary,
            .btn-secondary {
                justify-content: center;
                text-align: center;
            }

            .hero-stats {
                gap: 1rem;
            }

            .hero-stat-number {
                font-size: 1.3rem;
            }

            .seeding-visual {
                grid-template-columns: 1fr;
            }

            .bubble-item {
                padding: 0.9rem 1rem;
            }

            .news-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.6rem;
            }

            .plan-card {
                padding: 1.3rem;
            }

            .faq-question {
                font-size: 0.88rem;
                padding: 1rem 1.1rem;
            }

            .faq-answer-inner {
                padding: 0 1.1rem 1.1rem;
                font-size: 0.85rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary-bg: #0A2E1C;
            --secondary-bg: #123E25;
            --deep-bg: #071F13;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-pale-mint: #D1F2EB;
            --text-muted: #A8C9BC;
            --border-gold: rgba(255, 215, 0, 0.4);
            --border-soft: rgba(255, 255, 255, 0.08);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-gold: 0 10px 30px rgba(255, 215, 0, 0.15);
            --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.3);
            --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;
        }

        body {
            font-family: 'Be Vietnam Pro', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
            background: var(--primary-bg);
            color: var(--text-white);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        ::selection {
            background: var(--accent-gold);
            color: #0A2E1C;
        }

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

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

        a:hover {
            color: #FFF2A0;
            text-decoration: none;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(7, 31, 19, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-gold);
            padding: 0;
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(7, 31, 19, 0.98);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.45);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.01em;
            line-height: 1.3;
            max-width: 380px;
        }

        .logo i {
            color: var(--accent-gold);
            font-size: 1.7rem;
            filter: drop-shadow(0 0 8px rgba(255, 215, 0, 0.5));
        }

        .logo:hover {
            color: #FFF2A0;
        }

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

        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 9px 16px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.92rem;
            color: var(--text-pale-mint);
            transition: var(--transition);
            border: 1px solid transparent;
            white-space: nowrap;
        }

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

        .main-nav a.active {
            background: var(--accent-gold);
            color: #0A2E1C;
            font-weight: 700;
            box-shadow: 0 6px 18px rgba(255, 215, 0, 0.3);
        }

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

        .btn-login {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: var(--text-white);
            padding: 10px 18px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.88rem;
            transition: var(--transition);
            white-space: nowrap;
        }

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

        .btn-signup {
            background: linear-gradient(135deg, #FFD700 0%, #FFC107 100%);
            border: none;
            color: #0A2E1C;
            padding: 10px 22px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.88rem;
            transition: var(--transition);
            box-shadow: 0 6px 18px rgba(255, 215, 0, 0.3);
            white-space: nowrap;
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(255, 215, 0, 0.45);
            background: linear-gradient(135deg, #FFE14D 0%, #FFD700 100%);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            width: 46px;
            height: 46px;
            border-radius: 12px;
            font-size: 1.3rem;
            transition: var(--transition);
            align-items: center;
            justify-content: center;
        }

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

        /* Hero */
        .hero-section {
            position: relative;
            background: linear-gradient(135deg, #071F13 0%, #0A2E1C 45%, #123E25 100%);
            padding: 80px 0 70px;
            overflow: hidden;
            border-bottom: 1px solid var(--border-gold);
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.07) 0%, transparent 65%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -15%;
            width: 550px;
            height: 550px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.05) 0%, transparent 60%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-badge-group {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 22px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .hero-badge i {
            font-size: 0.85rem;
        }

        .hero-title {
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--text-white);
            margin-bottom: 22px;
        }

        .hero-title .gold-text {
            color: var(--accent-gold);
            position: relative;
        }

        .hero-title .gold-text::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--accent-gold), transparent);
            border-radius: 4px;
        }

        .hero-subtitle {
            font-size: 1.12rem;
            color: var(--text-pale-mint);
            line-height: 1.7;
            margin-bottom: 30px;
            max-width: 520px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .btn-hero-primary {
            background: linear-gradient(135deg, #FFD700 0%, #FFC107 100%);
            color: #0A2E1C;
            padding: 15px 34px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            border: none;
            transition: var(--transition);
            box-shadow: 0 10px 30px rgba(255, 215, 0, 0.35);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-hero-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 18px 40px rgba(255, 215, 0, 0.5);
            color: #0A2E1C;
        }

        .btn-hero-secondary {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: var(--text-white);
            padding: 15px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-hero-secondary:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.05);
        }

        .hero-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-gold);
            border: 1px solid var(--border-gold);
            min-height: 380px;
        }

        .hero-visual img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            transition: var(--transition);
        }

        .hero-visual:hover img {
            transform: scale(1.03);
        }

        .hero-visual-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 28px;
            background: linear-gradient(to top, rgba(7, 31, 19, 0.95) 20%, transparent);
        }

        .hero-visual-overlay h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 6px;
        }

        .hero-visual-overlay p {
            font-size: 0.92rem;
            color: var(--text-pale-mint);
            margin: 0;
        }

        /* Section Common */
        .section {
            padding: 70px 0;
            position: relative;
        }

        .section-alt {
            background: var(--deep-bg);
            border-top: 1px solid var(--border-soft);
            border-bottom: 1px solid var(--border-soft);
        }

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

        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--text-white);
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .section-header p {
            font-size: 1.05rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 680px;
        }

        /* Review Cards */
        .review-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 28px;
            margin-bottom: 24px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .review-card:hover {
            background: rgba(255, 255, 255, 0.06);
            box-shadow: var(--shadow-gold);
            transform: translateY(-3px);
        }

        .review-card .rank-badge {
            position: absolute;
            top: 20px;
            right: 20px;
            background: var(--accent-gold);
            color: #0A2E1C;
            font-weight: 800;
            font-size: 0.85rem;
            padding: 6px 14px;
            border-radius: 50px;
            letter-spacing: 0.05em;
        }

        .review-card .hot-tag {
            position: absolute;
            top: 20px;
            left: 20px;
            background: var(--accent-red);
            color: #FFF;
            font-weight: 700;
            font-size: 0.72rem;
            padding: 4px 12px;
            border-radius: 50px;
            letter-spacing: 0.06em;
            text-transform: uppercase;
        }

        .review-card-header {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 18px;
            padding-right: 80px;
        }

        .review-card-logo {
            width: 58px;
            height: 58px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(255,215,0,0.15), rgba(255,215,0,0.05));
            border: 1px solid var(--border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent-gold);
            flex-shrink: 0;
        }

        .review-card-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-white);
            margin: 0;
        }

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

        .review-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 18px;
            padding: 16px 0;
            border-top: 1px solid var(--border-soft);
            border-bottom: 1px solid var(--border-soft);
        }

        .review-stat {
            display: flex;
            flex-direction: column;
            gap: 3px;
        }

        .review-stat-label {
            font-size: 0.78rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        .review-stat-value {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--accent-gold);
        }

        .review-card-desc {
            font-size: 0.95rem;
            color: var(--text-pale-mint);
            line-height: 1.7;
            margin-bottom: 18px;
        }

        .review-card-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .btn-review-primary {
            background: linear-gradient(135deg, #FFD700 0%, #FFC107 100%);
            color: #0A2E1C;
            padding: 11px 24px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.9rem;
            border: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-review-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(255, 215, 0, 0.4);
            color: #0A2E1C;
        }

        .btn-review-secondary {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: var(--text-pale-mint);
            padding: 11px 20px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

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

        /* Trust Section */
        .trust-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }

        .trust-item {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            padding: 24px;
            text-align: center;
            transition: var(--transition);
        }

        .trust-item:hover {
            border-color: var(--border-gold);
            background: rgba(255, 215, 0, 0.05);
            transform: translateY(-4px);
        }

        .trust-item i {
            font-size: 2.2rem;
            color: var(--accent-gold);
            margin-bottom: 14px;
            display: block;
        }

        .trust-item h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 8px;
        }

        .trust-item p {
            font-size: 0.86rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* Comparison Table */
        .comparison-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-gold);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 720px;
            margin: 0;
        }

        .comparison-table th {
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
            font-weight: 700;
            font-size: 0.88rem;
            padding: 16px 18px;
            text-align: left;
            border-bottom: 1px solid var(--border-gold);
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        .comparison-table td {
            padding: 15px 18px;
            font-size: 0.92rem;
            color: var(--text-pale-mint);
            border-bottom: 1px solid var(--border-soft);
        }

        .comparison-table tr:last-child td {
            border-bottom: none;
        }

        .comparison-table tr:hover td {
            background: rgba(255, 215, 0, 0.03);
        }

        .table-highlight {
            color: var(--accent-gold);
            font-weight: 700;
        }

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

        .faq-item {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }

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

        .faq-question {
            width: 100%;
            background: transparent;
            border: none;
            padding: 20px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            color: var(--text-white);
            font-weight: 700;
            font-size: 1rem;
            text-align: left;
            transition: var(--transition);
        }

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

        .faq-question i {
            color: var(--accent-gold);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            padding: 0 24px;
        }

        .faq-answer-inner {
            padding-bottom: 20px;
            font-size: 0.94rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

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

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

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #123E25 0%, #0A2E1C 60%, #071F13 100%);
            border-top: 1px solid var(--border-gold);
            border-bottom: 1px solid var(--border-gold);
            padding: 70px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.08) 0%, transparent 60%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 1;
        }

        .cta-content h2 {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--text-white);
            margin-bottom: 16px;
        }

        .cta-content p {
            font-size: 1.08rem;
            color: var(--text-pale-mint);
            max-width: 600px;
            margin: 0 auto 30px;
            line-height: 1.7;
        }

        .cta-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }

        /* Footer */
        .site-footer {
            background: var(--deep-bg);
            border-top: 1px solid var(--border-gold);
            padding: 60px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 40px;
        }

        .footer-brand {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand i {
            color: var(--accent-gold);
            font-size: 1.3rem;
        }

        .footer-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 340px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 16px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

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

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

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

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

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding-top: 24px;
            border-top: 1px solid var(--border-soft);
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .footer-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 215, 0, 0.06);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 0.76rem;
            font-weight: 600;
        }

        /* FAB */
        .floating-fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 999;
            width: 58px;
            height: 58px;
            border-radius: 50%;
            background: linear-gradient(135deg, #0A2E1C 0%, #071F13 100%);
            border: 3px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-gold);
            cursor: pointer;
            opacity: 0.75;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            animation: fabFloat 3s ease-in-out infinite;
        }

        .floating-fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 10px 32px rgba(255, 215, 0, 0.5);
        }

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

        .floating-fab .notification-dot {
            position: absolute;
            top: -3px;
            right: -3px;
            width: 14px;
            height: 14px;
            background: var(--accent-red);
            border-radius: 50%;
            border: 2px solid #0A2E1C;
            animation: blinkDot 1.8s ease-in-out infinite;
        }

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

        @keyframes blinkDot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.35; }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .trust-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: nowrap;
            }
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(7, 31, 19, 0.98);
                backdrop-filter: blur(18px);
                flex-direction: column;
                padding: 16px 20px;
                gap: 6px;
                border-bottom: 1px solid var(--border-gold);
                box-shadow: 0 20px 40px rgba(0,0,0,0.5);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                width: 100%;
                padding: 12px 16px;
                border-radius: 10px;
            }
            .nav-actions {
                display: none;
            }
            .hero-section {
                padding: 50px 0 50px;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-visual, .hero-visual img {
                height: 280px;
                min-height: 280px;
            }
            .section {
                padding: 50px 0;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .trust-grid {
                grid-template-columns: 1fr;
            }
            .cta-content h2 {
                font-size: 1.7rem;
            }
            .review-card {
                padding: 20px;
            }
            .review-card-header {
                padding-right: 60px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .logo {
                font-size: 0.9rem;
                max-width: 230px;
            }
            .logo i {
                font-size: 1.3rem;
            }
            .hero-title {
                font-size: 1.55rem;
            }
            .hero-subtitle {
                font-size: 0.98rem;
            }
            .btn-hero-primary, .btn-hero-secondary {
                padding: 12px 22px;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }
            .hero-actions {
                flex-direction: column;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 12px;
            }
            .footer-badges {
                justify-content: center;
            }
            .review-stats {
                gap: 14px;
            }
            .floating-fab {
                width: 50px;
                height: 50px;
                font-size: 1.2rem;
                left: 12px;
                bottom: 84px;
            }
            .comparison-table-wrap {
                border-radius: var(--radius-sm);
            }
            .cta-content h2 {
                font-size: 1.45rem;
            }
        }

/* roulang page: article */
:root {
            --primary-bg: #08090F;
            --secondary-bg: #0D111E;
            --card-bg: #111827;
            --card-bg-hover: #1A2332;
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --accent-amber: #FFBF00;
            --accent-red: #FF3B5C;
            --text-white: #FFFFFF;
            --text-silver: #CBD5E1;
            --text-muted: #8B98A9;
            --border-color: #1E2A3A;
            --border-hover: #0052FF;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.3);
            --shadow-glow: 0 0 20px rgba(0, 240, 255, 0.15);
            --font-primary: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', Arial, sans-serif;
            --transition: 0.25s 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-primary);
            background: var(--primary-bg);
            color: var(--text-white);
            line-height: 1.6;
            font-size: 16px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            color: inherit;
            transition: all var(--transition);
        }

        button:focus,
        a:focus,
        input:focus,
        textarea:focus {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header */
        .site-header {
            background: rgba(8, 9, 15, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 50;
            padding: 14px 0;
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-white);
            letter-spacing: -0.01em;
            line-height: 1.3;
            max-width: 420px;
        }

        .logo i {
            color: var(--accent-cyan);
            font-size: 1.5rem;
            filter: drop-shadow(0 0 8px rgba(0, 240, 255, 0.5));
        }

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

        .main-nav a {
            padding: 8px 14px;
            border-radius: 50px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-silver);
            white-space: nowrap;
            transition: all var(--transition);
            border: 1px solid transparent;
        }

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

        .main-nav a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
            border-color: rgba(0, 240, 255, 0.25);
        }

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

        .btn-login {
            padding: 9px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-white);
            background: transparent;
            border: 1px solid var(--border-color);
            white-space: nowrap;
            transition: all var(--transition);
        }

        .btn-login:hover {
            border-color: var(--text-silver);
            background: rgba(255, 255, 255, 0.05);
            transform: translateY(-1px);
        }

        .btn-signup {
            padding: 9px 20px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-white);
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            box-shadow: 0 4px 16px rgba(0, 82, 255, 0.35);
            white-space: nowrap;
            transition: all var(--transition);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 82, 255, 0.5);
        }

        .nav-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
            width: 44px;
            height: 44px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
        }

        /* Article Layout */
        .article-page {
            flex: 1;
            padding: 40px 0 80px;
        }

        .article-header-banner {
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-bottom: 32px;
            position: relative;
            min-height: 280px;
            background: url('/assets/images/backpic/back-2.jpg') center center / cover no-repeat;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow-card);
        }

        .article-header-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(8,9,15,0.3) 0%, rgba(8,9,15,0.75) 60%, rgba(8,9,15,0.95) 100%);
            z-index: 1;
        }

        .article-banner-content {
            position: relative;
            z-index: 2;
            padding: 40px 32px 28px;
            width: 100%;
        }

        .article-category-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(0, 240, 255, 0.15);
            border: 1px solid rgba(0, 240, 255, 0.35);
            color: var(--accent-cyan);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .article-banner-content h1 {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 14px;
            letter-spacing: -0.02em;
            color: var(--text-white);
        }

        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            color: var(--text-silver);
            font-size: 0.85rem;
        }

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

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

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

        .article-main-content {
            background: var(--secondary-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            box-shadow: var(--shadow-card);
        }

        .article-main-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin: 32px 0 16px;
            color: var(--text-white);
            letter-spacing: -0.01em;
            line-height: 1.35;
        }

        .article-main-content h2:first-child {
            margin-top: 0;
        }

        .article-main-content h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin: 28px 0 12px;
            color: var(--text-white);
            line-height: 1.4;
        }

        .article-main-content p {
            margin-bottom: 18px;
            color: var(--text-silver);
            line-height: 1.7;
        }

        .article-main-content ul,
        .article-main-content ol {
            margin: 0 0 20px 24px;
            color: var(--text-silver);
            line-height: 1.7;
        }

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

        .article-main-content strong {
            color: var(--text-white);
            font-weight: 700;
        }

        .article-main-content blockquote {
            margin: 28px 0;
            padding: 20px 24px;
            background: rgba(0, 82, 255, 0.08);
            border-left: 4px solid var(--accent-blue);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--text-silver);
            font-style: italic;
            line-height: 1.7;
        }

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

        .article-main-content table {
            width: 100%;
            margin: 24px 0;
            border-collapse: collapse;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
        }

        .article-main-content th {
            background: var(--card-bg);
            color: var(--text-white);
            font-weight: 700;
            padding: 12px 16px;
            text-align: left;
            font-size: 0.9rem;
        }

        .article-main-content td {
            padding: 12px 16px;
            border-top: 1px solid var(--border-color);
            color: var(--text-silver);
            font-size: 0.9rem;
        }

        .article-not-found {
            background: var(--secondary-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 60px 32px;
            text-align: center;
            box-shadow: var(--shadow-card);
        }

        .article-not-found i {
            font-size: 3rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            display: block;
        }

        .article-not-found h2 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-white);
        }

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

        .btn-back-home {
            display: inline-block;
            padding: 12px 28px;
            border-radius: 50px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: var(--text-white);
            font-weight: 700;
            font-size: 0.9rem;
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(0, 82, 255, 0.35);
        }

        .btn-back-home:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 82, 255, 0.5);
            color: var(--text-white);
        }

        /* Sidebar */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 100px;
        }

        .sidebar-card {
            background: var(--secondary-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-card);
        }

        .sidebar-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card h3 i {
            color: var(--accent-cyan);
            font-size: 0.9rem;
        }

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

        .sidebar-top-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px;
            background: var(--card-bg);
            border-radius: var(--radius-sm);
            border: 1px solid transparent;
            transition: all var(--transition);
        }

        .sidebar-top-list li:hover {
            border-color: var(--border-hover);
            background: var(--card-bg-hover);
            transform: translateX(4px);
        }

        .sidebar-top-list .rank-number {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 0.85rem;
            color: var(--text-white);
        }

        .sidebar-top-list .top-info {
            flex: 1;
        }

        .sidebar-top-list .top-info strong {
            display: block;
            font-size: 0.88rem;
            color: var(--text-white);
            margin-bottom: 2px;
        }

        .sidebar-top-list .top-info span {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .sidebar-banner {
            border-radius: var(--radius-md);
            overflow: hidden;
            position: relative;
            min-height: 160px;
            background: url('/assets/images/coverpic/cover-3.jpeg') center center / cover no-repeat;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border-color);
        }

        .sidebar-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(8, 9, 15, 0.65);
            z-index: 1;
        }

        .sidebar-banner-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 24px;
        }

        .sidebar-banner-content h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-white);
        }

        .sidebar-banner-content p {
            font-size: 0.82rem;
            color: var(--text-silver);
            margin-bottom: 16px;
        }

        /* CTA Section */
        .article-cta-section {
            margin-top: 48px;
            background: url('/assets/images/backpic/back-1.jpg') center center / cover no-repeat;
            border-radius: var(--radius-lg);
            padding: 48px 32px;
            position: relative;
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
        }

        .article-cta-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(8, 9, 15, 0.8);
            z-index: 1;
        }

        .article-cta-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
        }

        .article-cta-content h2 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--text-white);
            letter-spacing: -0.02em;
        }

        .article-cta-content p {
            color: var(--text-silver);
            margin-bottom: 24px;
            line-height: 1.7;
        }

        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 50px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: var(--text-white);
            font-weight: 700;
            font-size: 0.95rem;
            box-shadow: 0 4px 20px rgba(0, 82, 255, 0.4);
            transition: all var(--transition);
        }

        .btn-cta-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0, 82, 255, 0.6);
            color: var(--text-white);
        }

        /* FAB */
        .fab-support {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(8, 9, 15, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(8, 9, 15, 0.85), rgba(8, 9, 15, 0.85)), linear-gradient(135deg, #00F0FF, #0052FF);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.3rem;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.35);
            transition: all var(--transition);
            animation: fabFloat 3s ease-in-out infinite;
        }

        .fab-support:hover {
            transform: scale(1.1);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.6);
            color: var(--text-white);
        }

        .fab-support .notification-dot {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 12px;
            height: 12px;
            background: var(--accent-red);
            border-radius: 50%;
            border: 2px solid var(--primary-bg);
            animation: blinkDot 1.5s ease-in-out infinite;
        }

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

        @keyframes blinkDot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* Footer */
        .site-footer {
            background: var(--secondary-bg);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 24px;
            margin-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-brand {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-white);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
            line-height: 1.3;
        }

        .footer-brand i {
            color: var(--accent-cyan);
            font-size: 1.2rem;
        }

        .footer-desc {
            color: var(--text-muted);
            font-size: 0.85rem;
            line-height: 1.7;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

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

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

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

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            color: var(--text-muted);
            font-size: 0.8rem;
        }

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

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid rgba(0, 240, 255, 0.2);
            border-radius: 50px;
            font-size: 0.78rem;
            color: var(--text-silver);
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .article-sidebar {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
            }

            .sidebar-card {
                flex: 1;
                min-width: 260px;
            }

            .sidebar-banner {
                flex: 1;
                min-width: 260px;
            }

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

        @media (max-width: 768px) {
            .header-inner {
                gap: 12px;
            }

            .nav-toggle {
                display: flex;
            }

            .main-nav {
                display: none;
                position: fixed;
                top: 68px;
                left: 16px;
                right: 16px;
                background: var(--secondary-bg);
                border: 1px solid var(--border-color);
                border-radius: var(--radius-md);
                padding: 16px;
                flex-direction: column;
                align-items: stretch;
                gap: 6px;
                box-shadow: var(--shadow-card);
                z-index: 49;
            }

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

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

            .nav-actions {
                gap: 8px;
            }

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

            .logo {
                font-size: 0.85rem;
                max-width: 200px;
            }

            .article-header-banner {
                min-height: 220px;
            }

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

            .article-banner-content {
                padding: 28px 20px 20px;
            }

            .article-main-content {
                padding: 24px 20px;
            }

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

            .article-sidebar {
                flex-direction: column;
            }

            .sidebar-card,
            .sidebar-banner {
                min-width: 100%;
            }

            .article-cta-section {
                padding: 32px 24px;
            }

            .article-cta-content h2 {
                font-size: 1.4rem;
            }

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

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

            .fab-support {
                width: 48px;
                height: 48px;
                font-size: 1.1rem;
                left: 12px;
                bottom: 80px;
            }
        }

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

            .header-inner {
                gap: 8px;
            }

            .logo {
                font-size: 0.75rem;
                max-width: 140px;
                gap: 6px;
            }

            .logo i {
                font-size: 1.1rem;
            }

            .btn-login,
            .btn-signup {
                padding: 7px 10px;
                font-size: 0.7rem;
            }

            .article-header-banner {
                min-height: 180px;
            }

            .article-banner-content h1 {
                font-size: 1.35rem;
            }

            .article-banner-content {
                padding: 20px 16px 16px;
            }

            .article-meta {
                gap: 10px;
                font-size: 0.75rem;
            }

            .article-main-content {
                padding: 20px 16px;
            }

            .article-main-content h2 {
                font-size: 1.15rem;
            }

            .article-main-content h3 {
                font-size: 1.05rem;
            }

            .article-main-content p,
            .article-main-content ul,
            .article-main-content ol {
                font-size: 0.9rem;
            }

            .article-cta-section {
                padding: 24px 16px;
            }

            .article-cta-content h2 {
                font-size: 1.2rem;
            }

            .btn-cta-primary {
                padding: 12px 24px;
                font-size: 0.85rem;
            }
        }

/* roulang page: category2 */
:root {
            --primary-bg: #0A2E1C;
            --secondary-bg: #123E25;
            --card-bg: #0D3520;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-pale: #D1F2EB;
            --text-muted: #A9C4B8;
            --border-gold: rgba(255, 215, 0, 0.5);
            --border-dark: rgba(255, 255, 255, 0.12);
            --shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.25);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.25);
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --space-section: 4.5rem;
            --transition: 0.25s ease;
            --font-sans: 'Inter', 'Segoe UI', Roboto, Arial, sans-serif;
            --font-display: 'Be Vietnam Pro', 'Inter', 'Segoe UI', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--primary-bg);
            color: var(--text-white);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

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

        a:hover {
            color: #fff0a0;
        }

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

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

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* HEADER / NAV */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 46, 28, 0.97);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-dark);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            padding: 0.9rem 0;
            flex-wrap: wrap;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-white);
            letter-spacing: -0.01em;
            line-height: 1.3;
            max-width: 380px;
        }

        .logo i {
            color: var(--accent-gold);
            font-size: 1.5rem;
            text-shadow: 0 0 12px rgba(255, 215, 0, 0.6);
        }

        .nav-toggle {
            display: none;
            background: var(--secondary-bg);
            border: 1px solid var(--border-dark);
            color: var(--accent-gold);
            border-radius: 8px;
            padding: 0.6rem 0.85rem;
            font-size: 1.3rem;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 1.8rem;
            flex-wrap: wrap;
        }

        .main-nav a {
            color: var(--text-pale);
            font-weight: 500;
            font-size: 0.98rem;
            padding: 0.4rem 0;
            border-bottom: 2px solid transparent;
            transition: color var(--transition), border-color var(--transition);
            white-space: nowrap;
        }

        .main-nav a:hover,
        .main-nav a.active {
            color: var(--accent-gold);
            border-bottom-color: var(--accent-gold);
        }

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

        .btn-login,
        .btn-signup {
            font-weight: 600;
            font-size: 0.9rem;
            padding: 0.6rem 1.2rem;
            border-radius: 30px;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-login {
            color: var(--text-pale);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .btn-login:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            transform: translateY(-1px);
        }

        .btn-signup {
            color: #0A2E1C;
            background: var(--accent-gold);
            box-shadow: var(--shadow-gold);
        }

        .btn-signup:hover {
            background: #ffe033;
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(255, 215, 0, 0.4);
        }

        /* HERO / BANNER */
        .page-hero {
            background: linear-gradient(135deg, #0A2E1C 0%, #123E25 55%, #1A5032 100%);
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-dark);
            padding: 3.8rem 0 3.5rem;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            top: -40%;
            right: -10%;
            width: 550px;
            height: 550px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }

        .page-hero h1 {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 2.6rem;
            line-height: 1.2;
            color: var(--text-white);
            letter-spacing: -0.02em;
            max-width: 800px;
            margin-bottom: 1rem;
        }

        .page-hero .subtitle {
            font-size: 1.15rem;
            color: var(--text-pale);
            max-width: 720px;
            line-height: 1.65;
            margin-bottom: 1.8rem;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.85rem;
            margin-bottom: 1.2rem;
        }

        /* SECTION SHARED */
        .section {
            padding: var(--space-section) 0;
        }

        .section-title {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 2rem;
            letter-spacing: -0.02em;
            margin-bottom: 0.75rem;
            color: var(--text-white);
            line-height: 1.3;
        }

        .section-sub {
            color: var(--text-muted);
            font-size: 1.05rem;
            margin-bottom: 2.5rem;
            max-width: 650px;
            line-height: 1.6;
        }

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

        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.8rem;
        }

        /* CONTENT CARD / RULE BLOCK */
        .rule-block {
            background: var(--card-bg);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: 2rem;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .rule-block:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold);
            transform: translateY(-3px);
        }

        .rule-block .icon-wrap {
            width: 48px;
            height: 48px;
            background: rgba(255, 215, 0, 0.1);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.5rem;
            margin-bottom: 1.2rem;
        }

        .rule-block h3 {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.35rem;
            margin-bottom: 0.8rem;
            color: var(--text-white);
        }

        .rule-block p {
            color: var(--text-pale);
            font-size: 0.98rem;
            line-height: 1.65;
        }

        /* HIGHLIGHT STRIP */
        .highlight-strip {
            background: linear-gradient(90deg, rgba(255, 215, 0, 0.12) 0%, rgba(210, 50, 50, 0.1) 100%);
            border-left: 5px solid var(--accent-gold);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            padding: 1.8rem 2rem;
            margin: 2.5rem 0;
        }

        .highlight-strip h4 {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.25rem;
            margin-bottom: 0.5rem;
            color: var(--accent-gold);
        }

        .highlight-strip p {
            color: var(--text-pale);
            line-height: 1.7;
            max-width: 900px;
        }

        /* FLOW / STEPS */
        .step-flow {
            display: flex;
            gap: 1.5rem;
            align-items: stretch;
            flex-wrap: wrap;
        }

        .step-item {
            flex: 1 1 200px;
            background: var(--card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-dark);
            padding: 1.5rem 1.2rem;
            position: relative;
            transition: all var(--transition);
        }

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

        .step-number {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 2.2rem;
            color: rgba(255, 215, 0, 0.35);
            line-height: 1;
            margin-bottom: 0.8rem;
        }

        .step-item h4 {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
            color: var(--text-white);
        }

        .step-item p {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.55;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

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

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

        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.4rem 1.8rem;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-white);
            background: transparent;
            text-align: left;
            transition: background var(--transition);
        }

        .faq-question i {
            color: var(--accent-gold);
            transition: transform var(--transition);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 1.8rem;
            color: var(--text-pale);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-answer.open {
            max-height: 400px;
            padding: 0 1.8rem 1.5rem;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #0F3A25 0%, #0A2E1C 100%);
            border-radius: var(--radius-xl);
            padding: 3.2rem 2.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 2rem;
            border: 1px solid var(--border-gold);
            box-shadow: var(--shadow-gold);
        }

        .cta-section h3 {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 1.9rem;
            margin-bottom: 0.5rem;
        }

        .cta-section p {
            color: var(--text-pale);
            max-width: 500px;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: var(--accent-gold);
            color: #0A2E1C;
            font-weight: 700;
            padding: 0.9rem 2rem;
            border-radius: 40px;
            font-size: 1rem;
            transition: all var(--transition);
            box-shadow: 0 6px 18px rgba(255, 215, 0, 0.3);
        }

        .btn-cta:hover {
            background: #ffe033;
            transform: translateY(-3px);
            box-shadow: 0 10px 28px rgba(255, 215, 0, 0.45);
        }

        /* IMAGE WITH TEXT */
        .image-text-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 2.5rem;
            align-items: center;
        }

        .image-text-grid img {
            width: 100%;
            height: 360px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-dark);
            box-shadow: var(--shadow-sm);
        }

        /* FOOTER */
        .site-footer {
            background: #071F14;
            border-top: 1px solid var(--border-dark);
            padding: 3.5rem 0 1.5rem;
            margin-top: 3rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid var(--border-dark);
        }

        .footer-brand {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--text-white);
            margin-bottom: 1rem;
        }

        .footer-brand i {
            color: var(--accent-gold);
        }

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

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

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

        .footer-col ul li {
            margin-bottom: 0.6rem;
        }

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

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

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            padding-top: 1.5rem;
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .footer-badges {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(255, 255, 255, 0.06);
            padding: 0.35rem 0.8rem;
            border-radius: 20px;
            font-size: 0.8rem;
            border: 1px solid var(--border-dark);
            color: var(--text-pale);
        }

        .footer-badge i {
            color: var(--accent-gold);
        }

        /* FAB */
        .fab-support {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 200;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #1A5032, #0A2E1C);
            border: 2px solid var(--accent-gold);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.4rem;
            transition: all var(--transition);
            opacity: 0.75;
            animation: floatBreath 3s infinite ease-in-out;
        }

        .fab-support:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.5);
        }

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

        /* RESPONSIVE */
        @media (max-width: 1024px) {
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .page-hero h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
                gap: 0.8rem;
            }
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0.4rem;
                padding: 0.8rem 0;
                background: rgba(10, 46, 28, 0.98);
                border-top: 1px solid var(--border-dark);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.6rem 0;
            }
            .nav-actions {
                margin-left: auto;
            }
            .grid-2,
            .image-text-grid {
                grid-template-columns: 1fr;
            }
            .grid-3 {
                grid-template-columns: 1fr;
            }
            .page-hero h1 {
                font-size: 1.9rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .cta-section {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 1rem;
            }
            .page-hero {
                padding: 2.5rem 0;
            }
            .page-hero h1 {
                font-size: 1.6rem;
            }
            .logo {
                font-size: 0.95rem;
                max-width: 250px;
            }
            .btn-login,
            .btn-signup {
                padding: 0.5rem 0.9rem;
                font-size: 0.8rem;
            }
            .nav-actions {
                gap: 0.4rem;
            }
            .rule-block {
                padding: 1.5rem;
            }
            .cta-section {
                padding: 2rem 1.5rem;
            }
            .fab-support {
                bottom: 5rem;
                left: 0.8rem;
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #1A1A1A;
            --bg-secondary: #121212;
            --bg-card: #1E1E1F;
            --bg-elevated: #252527;
            --accent-gold: #F0E68C;
            --accent-platinum: #E5E8E8;
            --accent-champagne: #C5A059;
            --text-primary: #FFFFFF;
            --text-secondary: #D5D8DC;
            --text-muted: #8E8E93;
            --border-subtle: #2E2E30;
            --border-gold: rgba(240, 230, 140, 0.25);
            --border-platinum: rgba(229, 232, 232, 0.2);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.55);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-base: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --font-display: 'Playfair Display', Georgia, serif;
        }
        
        * {
            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: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            font-size: 16px;
            overflow-x: hidden;
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        
        a:hover {
            color: var(--accent-gold);
        }
        
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
            font-size: inherit;
            transition: all var(--transition-fast);
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        
        /* ===== HEADER ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(18, 18, 18, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            transition: all var(--transition-base);
        }
        
        .site-header.scrolled {
            background: rgba(18, 18, 18, 0.98);
            box-shadow: var(--shadow-md);
        }
        
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 16px;
            line-height: 1.3;
            color: var(--text-primary);
            max-width: 340px;
            transition: all var(--transition-fast);
        }
        
        .logo i {
            color: var(--accent-gold);
            font-size: 22px;
            flex-shrink: 0;
        }
        
        .logo:hover {
            color: var(--accent-gold);
        }
        
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }
        
        .main-nav a {
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 6px;
            white-space: nowrap;
            transition: all var(--transition-fast);
            position: relative;
        }
        
        .main-nav a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
        }
        
        .main-nav a.active {
            color: var(--accent-gold);
            background: rgba(240, 230, 140, 0.08);
        }
        
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
        }
        
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        
        .btn-login {
            padding: 9px 18px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            border-radius: 6px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        
        .btn-login:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.08);
        }
        
        .btn-signup {
            padding: 9px 20px;
            font-size: 14px;
            font-weight: 600;
            background: var(--accent-gold);
            color: #1A1A1A;
            border-radius: 6px;
            white-space: nowrap;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 14px rgba(240, 230, 140, 0.3);
        }
        
        .btn-signup:hover {
            background: #FFFDE7;
            box-shadow: 0 6px 20px rgba(240, 230, 140, 0.45);
            transform: translateY(-1px);
            color: #1A1A1A;
        }
        
        .nav-toggle {
            display: none;
            font-size: 22px;
            color: var(--text-primary);
            padding: 8px;
            border-radius: 6px;
            transition: all var(--transition-fast);
        }
        
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        
        /* ===== PAGE HERO ===== */
        .page-hero {
            padding: 120px 0 48px;
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border-subtle);
            position: relative;
            overflow: hidden;
        }
        
        .page-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(240, 230, 140, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        
        .page-hero-content {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            max-width: 720px;
            position: relative;
            z-index: 1;
        }
        
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        
        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        
        .breadcrumb a:hover {
            color: var(--accent-gold);
        }
        
        .breadcrumb span {
            color: var(--text-secondary);
        }
        
        .page-hero h1 {
            font-family: var(--font-display);
            font-size: 44px;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 18px;
            color: var(--text-primary);
            letter-spacing: -0.5px;
        }
        
        .page-hero h1 em {
            font-style: normal;
            color: var(--accent-gold);
        }
        
        .page-hero-desc {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 620px;
            margin-bottom: 28px;
        }
        
        .hero-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }
        
        .hero-stat {
            display: flex;
            flex-direction: column;
        }
        
        .hero-stat .stat-number {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.2;
        }
        
        .hero-stat .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }
        
        /* ===== MAIN CONTENT ===== */
        .main-content {
            padding: 56px 0 72px;
            background: var(--bg-primary);
        }
        
        .section {
            margin-bottom: 64px;
        }
        
        .section:last-child {
            margin-bottom: 0;
        }
        
        .section-header {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            margin-bottom: 32px;
            gap: 20px;
            flex-wrap: wrap;
        }
        
        .section-header h2 {
            font-family: var(--font-display);
            font-size: 30px;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.3;
            letter-spacing: -0.3px;
        }
        
        .section-header h2 em {
            font-style: normal;
            color: var(--accent-gold);
        }
        
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: rgba(240, 230, 140, 0.1);
            border: 1px solid var(--border-gold);
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-gold);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }
        
        /* ===== EXPERTISE CARDS ===== */
        .expertise-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        
        .expertise-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        
        .expertise-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 100%;
            background: linear-gradient(180deg, var(--accent-gold), transparent);
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        
        .expertise-card:hover {
            border-color: var(--border-gold);
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        
        .expertise-card:hover::before {
            opacity: 1;
        }
        
        .expertise-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(240, 230, 140, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--accent-gold);
            margin-bottom: 16px;
        }
        
        .expertise-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.3;
        }
        
        .expertise-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin: 0;
        }
        
        /* ===== STRATEGY FLOW ===== */
        .strategy-flow {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 0;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
        }
        
        .flow-step {
            padding: 32px 28px;
            position: relative;
            transition: background var(--transition-base);
        }
        
        .flow-step:hover {
            background: var(--bg-elevated);
        }
        
        .flow-step:not(:last-child)::after {
            content: '';
            position: absolute;
            top: 50%;
            right: 0;
            transform: translateY(-50%);
            width: 1px;
            height: 60%;
            background: var(--border-subtle);
        }
        
        .flow-step .step-number {
            font-size: 42px;
            font-weight: 900;
            font-family: var(--font-display);
            color: rgba(240, 230, 140, 0.15);
            line-height: 1;
            margin-bottom: 14px;
        }
        
        .flow-step h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        
        .flow-step p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }
        
        /* ===== TIPS LIST ===== */
        .tips-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        
        .tip-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 22px 0;
            border-bottom: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
        }
        
        .tip-item:first-child {
            padding-top: 0;
        }
        
        .tip-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        
        .tip-item:hover {
            padding-left: 8px;
        }
        
        .tip-badge {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(240, 230, 140, 0.1);
            border: 1px solid var(--border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            color: var(--accent-gold);
        }
        
        .tip-item h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        
        .tip-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }
        
        /* ===== TABLE SECTION ===== */
        .position-table-wrapper {
            overflow-x: auto;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            background: var(--bg-card);
        }
        
        .position-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 640px;
        }
        
        .position-table th {
            background: var(--bg-elevated);
            padding: 16px 20px;
            text-align: left;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent-gold);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            border-bottom: 1px solid var(--border-subtle);
        }
        
        .position-table td {
            padding: 16px 20px;
            font-size: 14px;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-subtle);
            line-height: 1.5;
        }
        
        .position-table tr:last-child td {
            border-bottom: none;
        }
        
        .position-table tr:hover td {
            background: rgba(255, 255, 255, 0.02);
        }
        
        .position-table .position-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        
        .position-tag.early {
            background: rgba(229, 232, 232, 0.12);
            color: var(--accent-platinum);
        }
        
        .position-tag.middle {
            background: rgba(240, 230, 140, 0.12);
            color: var(--accent-gold);
        }
        
        .position-tag.late {
            background: rgba(197, 160, 89, 0.15);
            color: var(--accent-champagne);
        }
        
        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        
        .faq-item:hover {
            border-color: var(--border-platinum);
        }
        
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            transition: all var(--transition-fast);
        }
        
        .faq-question:hover {
            color: var(--accent-gold);
        }
        
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(240, 230, 140, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--accent-gold);
            transition: transform var(--transition-fast);
        }
        
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 24px;
        }
        
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        
        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        
        /* ===== CTA SECTION ===== */
        .cta-section {
            background: linear-gradient(135deg, #1E1E1F 0%, #252527 100%);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            position: relative;
            overflow: hidden;
        }
        
        .cta-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(240, 230, 140, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        
        .cta-section h2 {
            font-family: var(--font-display);
            font-size: 32px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
            line-height: 1.3;
            position: relative;
            z-index: 1;
        }
        
        .cta-section h2 em {
            font-style: normal;
            color: var(--accent-gold);
        }
        
        .cta-section p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 560px;
            position: relative;
            z-index: 1;
        }
        
        .cta-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        
        .btn-primary {
            padding: 13px 28px;
            font-size: 15px;
            font-weight: 700;
            background: var: var(--accent-gold);
            color: #1A1A1A;
            border-radius: 8px;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(240, 230, 140, 0.35);
        }
        
        .btn-primary:hover {
            background: #FFFDE7;
            box-shadow: 0 8px 24px rgba(240, 230, 140, 0.5);
            transform: translateY(-2px);
            color: #1A1A1A;
        }
        
        .btn-secondary {
            padding: 13px 28px;
            font-size: 15px;
            font-weight: 600;
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-platinum);
            border-radius: 8px;
            transition: all var(--transition-fast);
        }
        
        .btn-secondary:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(240, 230, 140, 0.05);
            transform: translateY(-2px);
        }
        
        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: 56px 0 28px;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 16px;
            color: var(--text-primary);
            margin-bottom: 14px;
            line-height: 1.4;
        }
        
        .footer-brand i {
            color: var(--accent-gold);
            font-size: 20px;
        }
        
        .footer-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
            max-width: 400px;
        }
        
        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .footer-col ul li {
            margin-bottom: 10px;
        }
        
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: all var(--transition-fast);
        }
        
        .footer-col ul li a:hover {
            color: var(--accent-gold);
            padding-left: 4px;
        }
        
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding-top: 24px;
            border-top: 1px solid var(--border-subtle);
            flex-wrap: wrap;
        }
        
        .footer-bottom span {
            font-size: 13px;
            color: var(--text-muted);
        }
        
        .footer-badges {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        
        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 12px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-subtle);
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            color: var(--text-secondary);
        }
        
        .footer-badge i {
            color: var(--accent-gold);
            font-size: 11px;
        }
        
        /* ===== FAB ===== */
        .floating-fab {
            position: fixed;
            left: 24px;
            bottom: 96px;
            z-index: 999;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--bg-elevated);
            border: 2px solid var(--border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--accent-gold);
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: 0 4px 20px rgba(240, 230, 140, 0.25);
            opacity: 0.7;
            animation: fabFloat 3s ease-in-out infinite;
        }
        
        .floating-fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 28px rgba(240, 230, 140, 0.4);
        }
        
        .floating-fab:active {
            transform: scale(0.95);
        }
        
        .floating-fab .fab-dot {
            position: absolute;
            top: -3px;
            right: -3px;
            width: 12px;
            height: 12px;
            background: #D32F2F;
            border-radius: 50%;
            border: 2px solid var(--bg-primary);
            animation: fabBlink 2s ease-in-out infinite;
        }
        
        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        
        @keyframes fabBlink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        
        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .header-inner {
                height: 64px;
            }
            
            .main-nav {
                gap: 0;
            }
            
            .main-nav a {
                padding: 6px 10px;
                font-size: 13px;
            }
            
            .logo {
                font-size: 14px;
                max-width: 240px;
            }
            
            .page-hero h1 {
                font-size: 36px;
            }
            
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
            }
        }
        
        @media (max-width: 768px) {
            .container {
                padding: 0 18px;
            }
            
            .header-inner {
                height: 60px;
            }
            
            .nav-toggle {
                display: block;
            }
            
            .main-nav {
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: var(--bg-secondary);
                border-bottom: 1px solid var(--border-subtle);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 12px 18px;
                display: none;
                box-shadow: var(--shadow-lg);
            }
            
            .main-nav.open {
                display: flex;
            }
            
            .main-nav a {
                padding: 14px 16px;
                font-size: 15px;
                border-radius: 8px;
            }
            
            .main-nav a.active::after {
                display: none;
            }
            
            .nav-actions {
                gap: 8px;
            }
            
            .btn-login,
            .btn-signup {
                padding: 7px 14px;
                font-size: 13px;
            }
            
            .logo {
                font-size: 13px;
                max-width: 180px;
            }
            
            .logo i {
                font-size: 18px;
            }
            
            .page-hero {
                padding: 96px 0 36px;
            }
            
            .page-hero h1 {
                font-size: 28px;
            }
            
            .page-hero-desc {
                font-size: 15px;
            }
            
            .hero-stats {
                gap: 20px;
            }
            
            .hero-stat .stat-number {
                font-size: 22px;
            }
            
            .section-header h2 {
                font-size: 24px;
            }
            
            .expertise-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            
            .strategy-flow {
                grid-template-columns: 1fr;
            }
            
            .flow-step:not(:last-child)::after {
                display: none;
            }
            
            .flow-step {
                border-bottom: 1px solid var(--border-subtle);
            }
            
            .flow-step:last-child {
                border-bottom: none;
            }
            
            .cta-section {
                padding: 32px 24px;
            }
            
            .cta-section h2 {
                font-size: 24px;
            }
            
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            
            .floating-fab {
                left: 16px;
                bottom: 80px;
                width: 46px;
                height: 46px;
                font-size: 17px;
            }
        }
        
        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            
            .header-inner {
                gap: 8px;
            }
            
            .logo {
                max-width: 120px;
                font-size: 11px;
                gap: 6px;
            }
            
            .logo i {
                font-size: 16px;
            }
            
            .btn-login,
            .btn-signup {
                padding: 6px 10px;
                font-size: 12px;
            }
            
            .page-hero h1 {
                font-size: 22px;
            }
            
            .page-hero-desc {
                font-size: 14px;
            }
            
            .hero-stats {
                flex-direction: column;
                gap: 12px;
            }
            
            .section-header h2 {
                font-size: 20px;
            }
            
            .expertise-card {
                padding: 20px;
            }
            
            .expertise-card h3 {
                font-size: 16px;
            }
            
            .flow-step {
                padding: 24px 20px;
            }
            
            .flow-step .step-number {
                font-size: 32px;
            }
            
            .tip-item {
                gap: 14px;
            }
            
            .tip-badge {
                width: 30px;
                height: 30px;
                font-size: 12px;
            }
            
            .faq-question {
                padding: 16px 18px;
                font-size: 14px;
            }
            
            .faq-answer {
                padding: 0 18px;
            }
            
            .faq-item.open .faq-answer {
                padding: 0 18px 16px;
            }
            
            .cta-section {
                padding: 24px 18px;
            }
            
            .cta-section h2 {
                font-size: 20px;
            }
            
            .btn-primary,
            .btn-secondary {
                width: 100%;
                text-align: center;
            }
            
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            
            .floating-fab {
                left: 12px;
                bottom: 72px;
                width: 42px;
                height: 42px;
                font-size: 15px;
            }
        }