/* roulang page: index */
:root {
            --primary-bg: #121212;
            --secondary-bg: #1C1C1E;
            --accent-gold: #C5A059;
            --accent-amber: #FFBF00;
            --text-primary: #F5F5F7;
            --text-muted: #D4AC0D;
            --text-light: #A6A6A8;
            --border-color: rgba(197, 160, 89, 0.25);
            --card-bg: #1E1E20;
            --btn-gradient: linear-gradient(135deg, #C5A059 0%, #FFBF00 100%);
            --shadow-gold: 0 4px 20px rgba(197, 160, 89, 0.3);
            --shadow-hover: 0 8px 30px rgba(197, 160, 89, 0.45);
            --container-max: 1240px;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--primary-bg);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

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

        /* Navbar */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(18, 18, 18, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            padding: 14px 0;
            transition: var(--transition-base);
        }

        .navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-gold);
            text-decoration: none;
            letter-spacing: -0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .logo i {
            color: var(--accent-amber);
            font-size: 1.7rem;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
        }

        .nav-links a {
            color: var(--text-light);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition-base);
            position: relative;
            padding: 6px 0;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-gold);
            transition: width 0.25s ease;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--accent-gold);
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .btn-login {
            background: transparent;
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            padding: 10px 24px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
        }
        .btn-login:hover {
            background: rgba(197, 160, 89, 0.12);
            border-color: var(--accent-amber);
            color: var(--accent-amber);
        }

        .btn-signup {
            background: var(--btn-gradient);
            color: #121212;
            border: none;
            padding: 10px 24px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
            box-shadow: var(--shadow-gold);
        }
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--accent-gold);
            font-size: 1.8rem;
            cursor: pointer;
        }

        /* Hero */
        .hero {
            padding: 140px 0 80px;
            background: linear-gradient(180deg, #1E1E20 0%, #121212 100%);
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -80px;
            width: 450px;
            height: 450px;
            background: radial-gradient(circle, rgba(197, 160, 89, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero-content h1 {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.25;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #F5F5F7 0%, #D4AC0D 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-content p {
            font-size: 1.15rem;
            color: var(--text-light);
            margin-bottom: 32px;
            line-height: 1.7;
            max-width: 520px;
        }
        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 32px;
        }
        .badge {
            background: rgba(197, 160, 89, 0.1);
            border: 1px solid var(--border-color);
            border-radius: 30px;
            padding: 8px 18px;
            font-size: 0.85rem;
            color: var(--accent-gold);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .badge i {
            color: var(--accent-amber);
        }
        .hero-cta-group {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-primary {
            background: var(--btn-gradient);
            color: #121212;
            padding: 14px 36px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            text-decoration: none;
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            box-shadow: var(--shadow-gold);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn-outline-white {
            border: 1px solid rgba(245, 245, 247, 0.4);
            color: var(--text-primary);
            padding: 14px 36px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            text-decoration: none;
            transition: var(--transition-base);
        }
        .btn-outline-white:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.08);
        }

        .hero-visual {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .live-preview-card {
            background: var(--secondary-bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            overflow: hidden;
            width: 100%;
            max-width: 420px;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
        }
        .live-preview-header {
            background: linear-gradient(135deg, #2A1F1F 0%, #1C1010 100%);
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .live-dot {
            width: 10px;
            height: 10px;
            background: #FF3B30;
            border-radius: 50%;
            animation: pulse-live 1.5s infinite;
        }
        .live-text {
            color: #FFD700;
            font-weight: 700;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        @keyframes pulse-live {
            0%,
            100% {
                opacity: 1;
                box-shadow: 0 0 0 0 rgba(255, 59, 48, 0.7);
            }
            50% {
                opacity: 0.6;
                box-shadow: 0 0 0 12px rgba(255, 59, 48, 0);
            }
        }

        .live-numbers {
            display: flex;
            gap: 12px;
            padding: 24px;
            justify-content: center;
        }
        .number-ball {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #C5A059, #8B6914);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1.3rem;
            color: #121212;
            box-shadow: 0 4px 15px rgba(197, 160, 89, 0.4);
        }
        .live-preview-footer {
            padding: 12px 20px;
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
        }

        /* Section General */
        section {
            padding: 80px 0;
        }
        .section-header {
            margin-bottom: 48px;
        }
        .section-label {
            font-size: 0.85rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--accent-gold);
            margin-bottom: 12px;
            display: block;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .section-desc {
            font-size: 1rem;
            color: var(--text-light);
            max-width: 650px;
            line-height: 1.7;
        }

        /* Benefits Trio */
        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .benefit-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 36px 28px;
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .benefit-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 40px;
            background: var(--accent-gold);
            border-radius: 0 0 6px 0;
        }
        .benefit-card:hover {
            border-color: var(--accent-gold);
            transform: translateY(-6px);
            box-shadow: var(--shadow-gold);
        }
        .benefit-icon {
            font-size: 2.4rem;
            color: var(--accent-amber);
            margin-bottom: 18px;
        }
        .benefit-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .benefit-card p {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* Kenh Doi Nguoi Dung */
        .steps-questions-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }
        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .step-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }
        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--btn-gradient);
            color: #121212;
            font-weight: 900;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .step-content h4 {
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
            font-size: 1.05rem;
        }
        .step-content p {
            color: var(--text-light);
            font-size: 0.9rem;
            line-height: 1.6;
        }
        .accordion-faq {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            overflow: hidden;
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 20px;
            color: var(--text-primary);
            font-weight: 700;
            font-size: 1rem;
            text-align: left;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition-base);
        }
        .faq-question:hover {
            color: var(--accent-gold);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }
        .faq-answer-inner {
            padding: 0 20px 18px;
            color: var(--text-light);
            line-height: 1.7;
            font-size: 0.95rem;
        }
        .faq-item.active .faq-answer {
            max-height: 200px;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }

        /* Scene Demo */
        .scene-demo {
            background: var(--secondary-bg);
        }
        .demo-showcase {
            display: flex;
            gap: 32px;
            overflow-x: auto;
            padding-bottom: 12px;
            scrollbar-width: thin;
            scrollbar-color: var(--accent-gold) transparent;
        }
        .demo-card {
            min-width: 280px;
            background: var(--card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            flex-shrink: 0;
            transition: var(--transition-base);
        }
        .demo-card:hover {
            border-color: var(--accent-gold);
            transform: translateY(-4px);
        }
        .demo-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .demo-card-body {
            padding: 18px;
        }
        .demo-card-body h4 {
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .demo-card-body p {
            font-size: 0.85rem;
            color: var(--text-light);
        }

        /* Social Proof */
        .proof-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            text-align: center;
            padding: 32px 20px;
            background: var(--card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--accent-gold);
            line-height: 1;
            margin-bottom: 8px;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-light);
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        /* News Section */
        .news-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 32px;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .news-item {
            display: flex;
            gap: 16px;
            padding: 18px;
            background: var(--card-bg);
            border-radius: var(--radius-sm);
            border: 1px solid transparent;
            transition: var(--transition-base);
        }
        .news-item:hover {
            border-color: var(--border-color);
        }
        .news-item-thumb {
            width: 80px;
            height: 80px;
            border-radius: 8px;
            background: var(--secondary-bg);
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.6rem;
        }
        .news-item-content {
            flex: 1;
        }
        .news-item-content a {
            font-weight: 700;
            color: var(--text-primary);
            text-decoration: none;
            font-size: 1rem;
            line-height: 1.4;
            transition: var(--transition-base);
        }
        .news-item-content a:hover {
            color: var(--accent-gold);
        }
        .news-item-meta {
            font-size: 0.8rem;
            color: var(--text-light);
            margin-top: 6px;
            display: flex;
            gap: 12px;
        }
        .news-sidebar {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid var(--border-color);
        }
        .news-sidebar h4 {
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 16px;
            font-size: 1.05rem;
        }
        .sidebar-link {
            display: block;
            padding: 10px 0;
            color: var(--text-light);
            text-decoration: none;
            border-bottom: 1px solid rgba(197, 160, 89, 0.1);
            font-size: 0.9rem;
            transition: var(--transition-base);
        }
        .sidebar-link:hover {
            color: var(--accent-gold);
        }

        /* Uu Dai Tang */
        .promo-tier {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .tier-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            transition: var(--transition-base);
            position: relative;
        }
        .tier-card.featured {
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-gold);
        }
        .tier-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--btn-gradient);
            color: #121212;
            padding: 6px 18px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.8rem;
            letter-spacing: 0.5px;
        }
        .tier-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 20px 0 10px;
        }
        .tier-amount {
            font-size: 2rem;
            font-weight: 900;
            color: var(--accent-gold);
            margin-bottom: 16px;
        }
        .tier-card ul {
            list-style: none;
            padding: 0;
            margin-bottom: 24px;
        }
        .tier-card li {
            padding: 6px 0;
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .tier-card li i {
            color: var(--accent-gold);
            margin-right: 6px;
        }
        .btn-tier {
            background: transparent;
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            padding: 12px 28px;
            border-radius: 30px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition-base);
            display: inline-block;
            text-decoration: none;
        }
        .btn-tier:hover {
            background: var(--btn-gradient);
            color: #121212;
            border-color: transparent;
        }

        /* Collection */
        .collection-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .collection-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            padding: 28px;
            display: flex;
            align-items: center;
            gap: 20px;
            transition: var(--transition-base);
            text-decoration: none;
            color: var(--text-primary);
        }
        .collection-card:hover {
            border-color: var(--accent-gold);
            background: #1A1A1D;
        }
        .collection-icon {
            width: 70px;
            height: 70px;
            border-radius: var(--radius-sm);
            background: rgba(197, 160, 89, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            color: var(--accent-gold);
            flex-shrink: 0;
        }
        .collection-info h4 {
            font-weight: 700;
            margin-bottom: 6px;
            font-size: 1.1rem;
        }
        .collection-info p {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 4px;
        }
        .collection-count {
            font-size: 0.8rem;
            color: var(--accent-amber);
            font-weight: 600;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #1C1C1E 0%, #2A1F1F 100%);
            text-align: center;
        }
        .cta-section .section-title {
            font-size: 2rem;
        }
        .cta-section .btn-primary {
            margin-top: 24px;
        }

        /* Footer */
        .footer {
            background: #0C0C0E;
            border-top: 1px solid var(--border-color);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-col h4 {
            color: var(--accent-gold);
            font-weight: 700;
            margin-bottom: 16px;
            font-size: 1.05rem;
        }
        .footer-col a {
            display: block;
            color: var(--text-light);
            text-decoration: none;
            padding: 5px 0;
            font-size: 0.9rem;
            transition: var(--transition-base);
        }
        .footer-col a:hover {
            color: var(--accent-gold);
        }
        .footer-bottom {
            text-align: center;
            color: var(--text-light);
            font-size: 0.8rem;
            padding-top: 20px;
            border-top: 1px solid rgba(197, 160, 89, 0.15);
        }

        /* FAB */
        .fab {
            position: fixed;
            left: 24px;
            bottom: 96px;
            z-index: 999;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, #C5A059, #8B6914);
            border: 2px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: var(--shadow-gold);
            transition: var(--transition-base);
            opacity: 0.7;
            animation: fab-breathe 3s ease-in-out infinite;
        }
        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: var(--shadow-hover);
        }
        .fab i {
            color: #121212;
            font-size: 1.5rem;
        }
        @keyframes fab-breathe {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-6px);
            }
        }
        .fab .notification-dot {
            position: absolute;
            top: 4px;
            right: 4px;
            width: 12px;
            height: 12px;
            background: #FF3B30;
            border-radius: 50%;
            border: 2px solid #121212;
        }

        /* Mobile Menu */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            width: 100%;
            background: rgba(18, 18, 18, 0.98);
            backdrop-filter: blur(20px);
            flex-direction: column;
            padding: 24px;
            gap: 16px;
            z-index: 999;
            border-bottom: 1px solid var(--border-color);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            color: var(--text-primary);
            font-size: 1.1rem;
            font-weight: 600;
            text-decoration: none;
            padding: 10px 0;
            border-bottom: 1px solid rgba(197, 160, 89, 0.1);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero .container {
                grid-template-columns: 1fr;
            }
            .hero-content h1 {
                font-size: 2.4rem;
            }
            .benefits-grid {
                grid-template-columns: 1fr 1fr;
            }
            .steps-questions-block {
                grid-template-columns: 1fr;
            }
            .proof-stats {
                grid-template-columns: 1fr 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .promo-tier {
                grid-template-columns: 1fr 1fr;
            }
            .collection-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .benefits-grid {
                grid-template-columns: 1fr;
            }
            .proof-stats {
                grid-template-columns: 1fr;
            }
            .promo-tier {
                grid-template-columns: 1fr;
            }
            .collection-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .hero-content h1 {
                font-size: 1.9rem;
            }
            section {
                padding: 48px 0;
            }
        }

/* roulang page: article */
:root {
            --primary-bg: #121212;
            --secondary-bg: #1C1C1E;
            --accent-gold: #C5A059;
            --accent-amber: #FFBF00;
            --text-primary: #F5F5F7;
            --text-muted: #D4AC0D;
            --text-light: #A6A6A8;
            --border-color: rgba(197, 160, 89, 0.25);
            --card-bg: #1E1E20;
            --btn-gradient: linear-gradient(135deg, #C5A059 0%, #FFBF00 100%);
            --shadow-gold: 0 4px 20px rgba(197, 160, 89, 0.3);
            --shadow-hover: 0 8px 30px rgba(197, 160, 89, 0.45);
            --container-max: 1240px;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--primary-bg);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }
        
        a {
            text-decoration: none;
            color: inherit;
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        button, input {
            font-family: inherit;
        }
        
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        
        /* Navbar */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(18, 18, 18, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            padding: 14px 0;
            transition: var(--transition-base);
        }
        
        .navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        
        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-gold);
            text-decoration: none;
            letter-spacing: -0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .logo i {
            color: var(--accent-amber);
            font-size: 1.7rem;
        }
        
        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
        }
        
        .nav-links a {
            color: var(--text-light);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition-base);
            position: relative;
            padding: 6px 0;
        }
        
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-gold);
            transition: width 0.25s ease;
        }
        
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--accent-gold);
        }
        
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }
        
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        
        .btn-login {
            background: transparent;
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            padding: 10px 24px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
        }
        
        .btn-login:hover {
            background: rgba(197, 160, 89, 0.12);
            border-color: var(--accent-amber);
            color: var(--accent-amber);
        }
        
        .btn-signup {
            background: var(--btn-gradient);
            color: #121212;
            border: none;
            padding: 10px 24px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
            box-shadow: var(--shadow-gold);
        }
        
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--accent-gold);
            font-size: 1.8rem;
            cursor: pointer;
        }
        
        /* Article Header */
        .article-header {
            padding: 140px 0 60px;
            background: linear-gradient(180deg, #1E1E20 0%, #121212 100%);
            position: relative;
            overflow: hidden;
        }
        
        .article-header::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(197, 160, 89, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        
        .article-header .container {
            position: relative;
            z-index: 1;
            max-width: 900px;
        }
        
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            margin-bottom: 20px;
        }
        
        .article-category-tag {
            background: rgba(197, 160, 89, 0.15);
            border: 1px solid var(--border-color);
            color: var(--accent-gold);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
        }
        
        .article-date {
            color: var(--text-light);
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        
        .article-date i {
            color: var(--accent-gold);
        }
        
        .article-header h1 {
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.3;
            margin-bottom: 16px;
            background: linear-gradient(135deg, #F5F5F7 0%, #D4AC0D 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .article-excerpt {
            font-size: 1.15rem;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 24px;
        }
        
        .article-divider {
            height: 1px;
            background: var(--border-color);
            margin: 32px 0;
        }
        
        /* Article Content */
        .article-content-section {
            padding: 60px 0 80px;
            background: var(--primary-bg);
        }
        
        .article-content-section .container {
            max-width: 900px;
        }
        
        .article-body {
            font-size: 1.1rem;
            line-height: 1.8;
            color: #E5E5E7;
        }
        
        .article-body h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin: 40px 0 16px;
            line-height: 1.3;
        }
        
        .article-body h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 32px 0 12px;
            line-height: 1.3;
        }
        
        .article-body p {
            margin-bottom: 20px;
            color: #D1D1D4;
        }
        
        .article-body ul,
        .article-body ol {
            margin: 20px 0;
            padding-left: 24px;
            color: #D1D1D4;
        }
        
        .article-body li {
            margin-bottom: 10px;
            line-height: 1.7;
        }
        
        .article-body strong {
            color: var(--accent-amber);
            font-weight: 700;
        }
        
        .article-body img {
            border-radius: var(--radius-md);
            margin: 32px 0;
            width: 100%;
        }
        
        .article-body blockquote {
            border-left: 4px solid var(--accent-gold);
            background: rgba(197, 160, 89, 0.06);
            padding: 20px 24px;
            margin: 32px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-muted);
            font-style: italic;
            font-size: 1.05rem;
        }
        
        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 32px 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
        }
        
        .article-body th {
            background: var(--card-bg);
            color: var(--accent-gold);
            padding: 14px 16px;
            text-align: left;
            font-weight: 700;
            font-size: 0.95rem;
            border-bottom: 2px solid var(--border-color);
        }
        
        .article-body td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border-color);
            color: #D1D1D4;
            font-size: 0.95rem;
        }
        
        .article-body tr:hover td {
            background: rgba(197, 160, 89, 0.03);
        }
        
        /* Article Not Found */
        .article-not-found {
            text-align: center;
            padding: 80px 24px;
            background: var(--card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
        }
        
        .article-not-found i {
            font-size: 3rem;
            color: var(--accent-gold);
            margin-bottom: 16px;
            display: block;
        }
        
        .article-not-found h2 {
            font-size: 1.8rem;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        
        .article-not-found p {
            color: var(--text-light);
            margin-bottom: 24px;
        }
        
        .btn-back-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--btn-gradient);
            color: #121212;
            padding: 12px 28px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.95rem;
            text-decoration: none;
            transition: var(--transition-base);
            box-shadow: var(--shadow-gold);
        }
        
        .btn-back-home:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        
        /* Related Articles */
        .related-articles {
            padding: 60px 0;
            background: var(--secondary-bg);
            border-top: 1px solid var(--border-color);
        }
        
        .related-articles .section-title {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 32px;
            text-align: left;
        }
        
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        
        .related-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition-base);
            cursor: pointer;
        }
        
        .related-card:hover {
            transform: translateY(-4px);
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-hover);
        }
        
        .related-card-image {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        
        .related-card-body {
            padding: 20px;
        }
        
        .related-card-tag {
            display: inline-block;
            background: rgba(197, 160, 89, 0.15);
            color: var(--accent-gold);
            padding: 4px 12px;
            border-radius: 16px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 10px;
        }
        
        .related-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
            margin-bottom: 8px;
            transition: var(--transition-base);
        }
        
        .related-card:hover h3 {
            color: var(--accent-gold);
        }
        
        .related-card .related-date {
            font-size: 0.8rem;
            color: var(--text-light);
        }
        
        /* CTA Section */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(180deg, var(--primary-bg) 0%, var(--secondary-bg) 100%);
            text-align: center;
            position: relative;
        }
        
        .cta-section::before {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 500px;
            height: 300px;
            background: radial-gradient(ellipse, rgba(197, 160, 89, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }
        
        .cta-section .container {
            position: relative;
            z-index: 1;
            max-width: 700px;
        }
        
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 900;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        
        .cta-section p {
            font-size: 1.1rem;
            color: var(--text-light);
            margin-bottom: 32px;
            line-height: 1.7;
        }
        
        .cta-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            justify-content: center;
        }
        
        .btn-cta-primary {
            background: var(--btn-gradient);
            color: #121212;
            padding: 14px 36px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            text-decoration: none;
            transition: var(--transition-base);
            box-shadow: var(--shadow-gold);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        
        .btn-cta-primary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        
        .btn-cta-secondary {
            background: transparent;
            border: 2px solid var(--accent-gold);
            color: var(--accent-gold);
            padding: 14px 36px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            text-decoration: none;
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        
        .btn-cta-secondary:hover {
            background: rgba(197, 160, 89, 0.1);
            border-color: var(--accent-amber);
            color: var(--accent-amber);
        }
        
        /* Footer */
        .footer {
            background: var(--secondary-bg);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-col h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 20px;
        }
        
        .footer-col a {
            display: block;
            color: var(--text-light);
            font-size: 0.9rem;
            margin-bottom: 12px;
            transition: var(--transition-base);
        }
        
        .footer-col a:hover {
            color: var(--accent-amber);
            padding-left: 6px;
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid var(--border-color);
            color: var(--text-light);
            font-size: 0.85rem;
        }
        
        /* FAB */
        .fab-support {
            position: fixed;
            left: 24px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            background: rgba(28, 28, 30, 0.75);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 2px solid transparent;
            background-clip: padding-box;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition-base);
            box-shadow: 0 4px 20px rgba(197, 160, 89, 0.25);
            animation: fab-breathe 3s ease-in-out infinite;
        }
        
        .fab-support::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 50%;
            background: linear-gradient(135deg, #C5A059, #FFBF00, #C5A059);
            z-index: -1;
            opacity: 0.7;
        }
        
        .fab-support i {
            font-size: 1.5rem;
            color: var(--accent-gold);
            transition: var(--transition-base);
        }
        
        .fab-support:hover {
            transform: scale(1.1);
            box-shadow: 0 6px 28px rgba(197, 160, 89, 0.45);
        }
        
        .fab-support:hover i {
            color: var(--accent-amber);
            transform: rotate(360deg);
        }
        
        @keyframes fab-breathe {
            0%, 100% { opacity: 0.7; }
            50% { opacity: 1; }
        }
        
        /* Responsive */
        @media (max-width: 1024px) {
            .article-header h1 {
                font-size: 2.2rem;
            }
            
            .article-body {
                font-size: 1.05rem;
            }
            
            .article-body h2 {
                font-size: 1.5rem;
            }
        }
        
        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: var(--secondary-bg);
                flex-direction: column;
                padding: 80px 30px 30px;
                gap: 20px;
                transition: var(--transition-base);
                border-left: 1px solid var(--border-color);
                z-index: 999;
            }
            
            .nav-links.active {
                right: 0;
            }
            
            .hamburger {
                display: block;
            }
            
            .nav-actions {
                gap: 10px;
            }
            
            .btn-login,
            .btn-signup {
                padding: 8px 16px;
                font-size: 0.8rem;
            }
            
            .article-header h1 {
                font-size: 1.8rem;
            }
            
            .article-excerpt {
                font-size: 1rem;
            }
            
            .article-body {
                font-size: 1rem;
            }
            
            .article-body h2 {
                font-size: 1.35rem;
            }
            
            .article-body h3 {
                font-size: 1.15rem;
            }
            
            .related-grid {
                grid-template-columns: 1fr;
            }
            
            .fab-support {
                left: 16px;
                bottom: 80px;
                width: 48px;
                height: 48px;
            }
            
            .fab-support i {
                font-size: 1.3rem;
            }
        }
        
        @media (max-width: 520px) {
            .article-header {
                padding: 120px 0 40px;
            }
            
            .article-header h1 {
                font-size: 1.5rem;
            }
            
            .article-meta {
                gap: 10px;
            }
            
            .cta-section h2 {
                font-size: 1.5rem;
            }
            
            .cta-actions {
                flex-direction: column;
                align-items: center;
            }
            
            .btn-cta-primary,
            .btn-cta-secondary {
                width: 100%;
                justify-content: center;
            }
            
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }

/* roulang page: category1 */
:root {
            --primary-bg: #121212;
            --secondary-bg: #1C1C1E;
            --accent-gold: #C5A059;
            --accent-amber: #FFBF00;
            --text-primary: #F5F5F7;
            --text-muted: #D4AC0D;
            --text-light: #A6A6A8;
            --border-color: rgba(197, 160, 89, 0.25);
            --card-bg: #1E1E20;
            --btn-gradient: linear-gradient(135deg, #C5A059 0%, #FFBF00 100%);
            --shadow-gold: 0 4px 20px rgba(197, 160, 89, 0.3);
            --shadow-hover: 0 8px 30px rgba(197, 160, 89, 0.45);
            --container-max: 1240px;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--primary-bg);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

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

        a {
            text-decoration: none;
            color: inherit;
        }

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

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

        ul,
        ol {
            list-style: none;
        }

        /* Navbar */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(18, 18, 18, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            padding: 14px 0;
            transition: var(--transition-base);
        }

        .navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-gold);
            text-decoration: none;
            letter-spacing: -0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .logo i {
            color: var(--accent-amber);
            font-size: 1.7rem;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
        }

        .nav-links a {
            color: var(--text-light);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition-base);
            position: relative;
            padding: 6px 0;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-gold);
            transition: width 0.25s ease;
        }

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

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .btn-login {
            background: transparent;
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            padding: 10px 24px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
        }

        .btn-login:hover {
            background: rgba(197, 160, 89, 0.12);
            border-color: var(--accent-amber);
            color: var(--accent-amber);
        }

        .btn-signup {
            background: var(--btn-gradient);
            color: #121212;
            border: none;
            padding: 10px 24px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
            box-shadow: var(--shadow-gold);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--accent-gold);
            font-size: 1.8rem;
            cursor: pointer;
        }

        /* Hero */
        .hero {
            padding: 140px 0 80px;
            background: linear-gradient(180deg, #1E1E20 0%, #121212 100%);
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -80px;
            width: 450px;
            height: 450px;
            background: radial-gradient(circle, rgba(197, 160, 89, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-content h1 {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.25;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #F5F5F7 0%, #D4AC0D 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-content p {
            font-size: 1.15rem;
            color: var(--text-light);
            margin-bottom: 32px;
            line-height: 1.7;
            max-width: 520px;
        }

        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 32px;
        }

        .badge {
            background: rgba(197, 160, 89, 0.1);
            border: 1px solid var(--border-color);
            border-radius: 30px;
            padding: 8px 18px;
            font-size: 0.85rem;
            color: var(--accent-gold);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .badge i {
            font-size: 0.9rem;
        }

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

        .hero-visual img {
            border-radius: var(--radius-lg);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
            border: 2px solid var(--border-color);
            max-width: 90%;
        }

        .group-buy-panel {
            background: var(--card-bg);
            border: 2px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px;
            margin-top: 24px;
            box-shadow: var(--shadow-gold);
            position: relative;
        }

        .group-buy-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
        }

        .group-buy-header h3 {
            font-size: 1.4rem;
            color: var(--accent-gold);
            font-weight: 700;
        }

        .group-count {
            background: rgba(197, 160, 89, 0.2);
            border-radius: 20px;
            padding: 6px 16px;
            font-size: 0.9rem;
            color: var(--accent-amber);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .group-count i {
            animation: pulse 1.5s ease-in-out infinite;
        }

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

        .group-cta {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .btn-start-group {
            background: var(--btn-gradient);
            color: #121212;
            border: none;
            padding: 14px 28px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition-base);
            box-shadow: var(--shadow-gold);
            flex: 1;
            min-width: 140px;
            text-align: center;
        }

        .btn-start-group:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .btn-join-group {
            background: transparent;
            border: 2px solid var(--accent-gold);
            color: var(--accent-gold);
            padding: 14px 28px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition-base);
            flex: 1;
            min-width: 140px;
            text-align: center;
        }

        .btn-join-group:hover {
            background: rgba(197, 160, 89, 0.12);
            border-color: var(--accent-amber);
            color: var(--accent-amber);
        }

        /* Sections */
        .section {
            padding: 80px 0;
        }

        .section-header {
            text-align: left;
            margin-bottom: 48px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
            position: relative;
            display: inline-block;
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 60px;
            height: 3px;
            background: var(--accent-gold);
            border-radius: 2px;
        }

        .section-header p {
            color: var(--text-light);
            font-size: 1.05rem;
            max-width: 600px;
        }

        /* Pain Points */
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
        }

        .pain-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px;
            transition: var(--transition-base);
            position: relative;
        }

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

        .pain-card i {
            font-size: 2.5rem;
            color: var(--accent-amber);
            margin-bottom: 18px;
        }

        .pain-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

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

        /* Solution Tabs */
        .solution-tabs {
            display: flex;
            gap: 12px;
            margin-bottom: 32px;
            flex-wrap: wrap;
        }

        .solution-tab {
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-light);
            padding: 12px 28px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: var(--transition-base);
        }

        .solution-tab.active,
        .solution-tab:hover {
            background: rgba(197, 160, 89, 0.15);
            border-color: var(--accent-gold);
            color: var(--accent-gold);
        }

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

        .solution-content img {
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
        }

        .solution-text h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .solution-text p {
            color: var(--text-light);
            font-size: 1rem;
            line-height: 1.7;
            margin-bottom: 24px;
        }

        .solution-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .solution-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            color: var(--text-light);
            font-size: 0.95rem;
        }

        .solution-list li i {
            color: var(--accent-amber);
            font-size: 1.2rem;
            margin-top: 2px;
        }

        /* Results */
        .results-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 28px;
        }

        .result-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px;
            text-align: left;
            transition: var(--transition-base);
        }

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

        .result-number {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--accent-gold);
            margin-bottom: 8px;
        }

        .result-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .result-card p {
            color: var(--text-light);
            font-size: 0.9rem;
            line-height: 1.5;
        }

        /* Testimonials */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .testimonial-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px;
            transition: var(--transition-base);
        }

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

        .testimonial-stars {
            color: var(--accent-amber);
            margin-bottom: 16px;
            display: flex;
            gap: 4px;
        }

        .testimonial-card p {
            color: var(--text-primary);
            font-size: 1rem;
            line-height: 1.7;
            margin-bottom: 20px;
            font-style: italic;
        }

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

        .testimonial-author strong {
            color: var(--accent-gold);
            font-size: 0.95rem;
        }

        .testimonial-author span {
            color: var(--text-light);
            font-size: 0.85rem;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(180deg, #1E1E20 0%, #121212 100%);
            padding: 80px 0;
            text-align: left;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .cta-section p {
            color: var(--text-light);
            font-size: 1.1rem;
            margin-bottom: 32px;
            max-width: 600px;
        }

        .cta-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-primary {
            background: var(--btn-gradient);
            color: #121212;
            border: none;
            padding: 16px 36px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1.05rem;
            cursor: pointer;
            transition: var(--transition-base);
            box-shadow: var(--shadow-gold);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .btn-secondary {
            background: transparent;
            border: 2px solid var(--accent-gold);
            color: var(--accent-gold);
            padding: 16px 36px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1.05rem;
            cursor: pointer;
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-secondary:hover {
            background: rgba(197, 160, 89, 0.12);
            border-color: var(--accent-amber);
            color: var(--accent-amber);
        }

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

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

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

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 22px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            color: var(--text-primary);
            font-size: 1.05rem;
            font-weight: 600;
            cursor: pointer;
            text-align: left;
        }

        .faq-question i {
            color: var(--accent-gold);
            transition: transform 0.3s ease;
        }

        .faq-answer {
            padding: 0 28px 22px;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

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

        /* Footer */
        .footer {
            background: #0D0D0E;
            padding: 60px 0 30px;
            border-top: 1px solid var(--border-color);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            color: var(--accent-gold);
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 18px;
        }

        .footer-col a {
            display: block;
            color: var(--text-light);
            font-size: 0.9rem;
            padding: 6px 0;
            transition: var(--transition-base);
        }

        .footer-col a:hover {
            color: var(--accent-gold);
            padding-left: 6px;
        }

        .footer-bottom {
            text-align: center;
            color: var(--text-light);
            font-size: 0.85rem;
            padding-top: 24px;
            border-top: 1px solid rgba(197, 160, 89, 0.2);
        }

        /* FAB */
        .fab-support {
            position: fixed;
            left: 24px;
            bottom: 100px;
            z-index: 50;
            background: var(--card-bg);
            border: 2px solid var(--accent-gold);
            border-radius: 50px;
            width: 56px;
            height: 56px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 20px rgba(197, 160, 89, 0.3);
            cursor: pointer;
            transition: var(--transition-base);
            opacity: 0.7;
            animation: float 3s ease-in-out infinite;
        }

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

        .fab-support:hover {
            transform: scale(1.1);
            opacity: 1;
            box-shadow: 0 8px 30px rgba(197, 160, 89, 0.45);
        }

        .fab-support i {
            font-size: 1.6rem;
            color: var(--accent-gold);
        }

        .fab-support .notification-dot {
            position: absolute;
            top: 4px;
            right: 6px;
            width: 12px;
            height: 12px;
            background: #D32F2F;
            border-radius: 50%;
            border: 2px solid #121212;
            animation: blink 1.5s ease-in-out infinite;
        }

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

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

            .hero-content h1 {
                font-size: 2.2rem;
            }

            .solution-content {
                grid-template-columns: 1fr;
            }

            .nav-links {
                gap: 20px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: rgba(18, 18, 18, 0.98);
                border-bottom: 1px solid var(--border-color);
                padding: 20px 24px;
                gap: 16px;
            }

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

            .hamburger {
                display: block;
            }

            .hero {
                padding: 120px 0 60px;
            }

            .hero-content h1 {
                font-size: 1.9rem;
            }

            .section {
                padding: 60px 0;
            }

            .section-header h2 {
                font-size: 1.8rem;
            }

            .group-buy-panel {
                padding: 20px;
            }

            .group-cta {
                flex-direction: column;
            }

            .cta-section h2 {
                font-size: 1.6rem;
            }

            .fab-support {
                left: 16px;
                bottom: 80px;
            }
        }

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

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

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

            .badge {
                font-size: 0.8rem;
                padding: 6px 14px;
            }

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

/* roulang page: category4 */
:root {
            --primary-bg: #121212;
            --secondary-bg: #1C1C1E;
            --accent-gold: #C5A059;
            --accent-amber: #FFBF00;
            --text-primary: #F5F5F7;
            --text-muted: #D4AC0D;
            --text-light: #A6A6A8;
            --border-color: rgba(197, 160, 89, 0.25);
            --card-bg: #1E1E20;
            --btn-gradient: linear-gradient(135deg, #C5A059 0%, #FFBF00 100%);
            --shadow-gold: 0 4px 20px rgba(197, 160, 89, 0.3);
            --shadow-hover: 0 8px 30px rgba(197, 160, 89, 0.45);
            --container-max: 1240px;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--primary-bg);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

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

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

        a {
            text-decoration: none;
            color: inherit;
        }

        /* Navbar */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(18, 18, 18, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            padding: 14px 0;
            transition: var(--transition-base);
        }

        .navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-gold);
            text-decoration: none;
            letter-spacing: -0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .logo i {
            color: var(--accent-amber);
            font-size: 1.7rem;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
        }

        .nav-links a {
            color: var(--text-light);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition-base);
            position: relative;
            padding: 6px 0;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-gold);
            transition: width 0.25s ease;
        }

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

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .btn-login {
            background: transparent;
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            padding: 10px 24px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
        }

        .btn-login:hover {
            background: rgba(197, 160, 89, 0.12);
            border-color: var(--accent-amber);
            color: var(--accent-amber);
        }

        .btn-signup {
            background: var(--btn-gradient);
            color: #121212;
            border: none;
            padding: 10px 24px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
            box-shadow: var(--shadow-gold);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--accent-gold);
            font-size: 1.8rem;
            cursor: pointer;
        }

        /* Category Hero - Trial Application */
        .cat-hero {
            padding: 140px 0 80px;
            background: linear-gradient(180deg, #1E1E20 0%, #121212 100%);
            position: relative;
            overflow: hidden;
        }

        .cat-hero::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -80px;
            width: 450px;
            height: 450px;
            background: radial-gradient(circle, rgba(255, 191, 0, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cat-hero .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .cat-hero-content h1 {
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.25;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #F5F5F7 0%, #D4AC0D 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .cat-hero-content p {
            font-size: 1.15rem;
            color: var(--text-light);
            margin-bottom: 32px;
            line-height: 1.7;
            max-width: 520px;
        }

        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 32px;
        }

        .badge {
            background: rgba(197, 160, 89, 0.1);
            border: 1px solid var(--border-color);
            border-radius: 30px;
            padding: 8px 18px;
            font-size: 0.85rem;
            color: var(--accent-gold);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
        }

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

        .btn-cta-lg {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--btn-gradient);
            color: #121212;
            padding: 16px 36px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1.1rem;
            text-decoration: none;
            box-shadow: var(--shadow-gold);
            transition: var(--transition-base);
            border: none;
            cursor: pointer;
        }

        .btn-cta-lg:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }

        .cat-hero-visual {
            position: relative;
        }

        .cat-hero-visual img {
            border-radius: var(--radius-lg);
            box-shadow: 0 20px 60px rgba(0,0,0,0.5);
            width: 100%;
            height: auto;
            border: 1px solid var(--border-color);
        }

        .speed-metric {
            position: absolute;
            bottom: -20px;
            left: -20px;
            background: var(--card-bg);
            border: 1px solid var(--accent-gold);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            text-align: center;
            box-shadow: var(--shadow-gold);
        }

        .speed-metric .number {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--accent-amber);
            line-height: 1;
        }

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

        /* Features Section */
        .features-section {
            padding: 80px 0;
        }

        .section-header {
            margin-bottom: 48px;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .section-header p {
            color: var(--text-light);
            font-size: 1.05rem;
            max-width: 600px;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .feature-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px;
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }

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

        .feature-icon {
            width: 56px;
            height: 56px;
            background: rgba(197, 160, 89, 0.1);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            font-size: 1.6rem;
            color: var(--accent-amber);
        }

        .feature-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

        .feature-card p {
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.65;
        }

        /* How It Works */
        .how-it-works {
            padding: 80px 0;
            background: var(--secondary-bg);
        }

        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 32px;
            max-width: 800px;
        }

        .step-item {
            display: flex;
            gap: 24px;
            align-items: flex-start;
        }

        .step-number {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            background: var(--btn-gradient);
            color: #121212;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1.3rem;
            box-shadow: var(--shadow-gold);
        }

        .step-body h4 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .step-body p {
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.65;
        }

        /* Testimonial */
        .testimonial-section {
            padding: 80px 0;
        }

        .testimonial-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 48px;
            max-width: 900px;
            margin: 0 auto;
            position: relative;
        }

        .testimonial-card::before {
            content: '"';
            position: absolute;
            top: 20px;
            left: 30px;
            font-size: 6rem;
            color: rgba(197, 160, 89, 0.15);
            font-weight: 900;
            line-height: 1;
            pointer-events: none;
        }

        .testimonial-card blockquote {
            font-size: 1.2rem;
            color: var(--text-primary);
            line-height: 1.75;
            margin-bottom: 24px;
            font-style: italic;
        }

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

        .author-avatar {
            width: 48px;
            height: 48px;
            background: var(--accent-gold);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: #121212;
        }

        .author-info strong {
            display: block;
            color: var(--text-primary);
            font-size: 0.95rem;
        }

        .author-info span {
            color: var(--text-light);
            font-size: 0.8rem;
        }

        .stats-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 48px;
        }

        .stat-item {
            text-align: left;
            padding: 24px;
            background: rgba(197, 160, 89, 0.05);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
        }

        .stat-number {
            font-size: 2rem;
            font-weight: 900;
            color: var(--accent-amber);
            line-height: 1;
            margin-bottom: 8px;
        }

        .stat-label {
            color: var(--text-light);
            font-size: 0.9rem;
        }

        /* FAQ */
        .faq-section {
            padding: 80px 0;
            background: var(--secondary-bg);
        }

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

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition-base);
        }

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

        .faq-question {
            padding: 24px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 700;
            color: var(--text-primary);
            font-size: 1.05rem;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }

        .faq-question i {
            color: var(--accent-gold);
            transition: transform 0.3s ease;
        }

        .faq-answer {
            padding: 0 24px 24px;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

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

        /* CTA Section */
        .cta-section {
            padding: 80px 0;
            text-align: center;
            background: linear-gradient(180deg, #121212 0%, #1E1E20 100%);
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .cta-section p {
            color: var(--text-light);
            font-size: 1.05rem;
            margin-bottom: 32px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* Footer */
        .footer {
            background: #0A0A0B;
            padding: 60px 0 24px;
            border-top: 1px solid var(--border-color);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            color: var(--accent-gold);
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .footer-col a {
            display: block;
            color: var(--text-light);
            font-size: 0.9rem;
            padding: 6px 0;
            transition: var(--transition-base);
            text-decoration: none;
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .cat-hero .container {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .cat-hero-visual {
                order: -1;
            }

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

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

        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }

            .nav-links {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background: rgba(18, 18, 18, 0.98);
                flex-direction: column;
                padding: 24px;
                gap: 16px;
                border-bottom: 1px solid var(--border-color);
                display: none;
            }

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

            .cat-hero {
                padding: 120px 0 60px;
            }

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

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

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

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

            .speed-metric {
                position: static;
                margin-top: 20px;
                display: inline-block;
            }
        }

        @media (max-width: 520px) {
            .cat-hero-content h1 {
                font-size: 1.7rem;
            }

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

            .testimonial-card {
                padding: 32px 24px;
            }
        }

/* roulang page: category2 */
:root {
            --primary-bg: #121212;
            --secondary-bg: #1C1C1E;
            --accent-gold: #C5A059;
            --accent-amber: #FFBF00;
            --text-primary: #F5F5F7;
            --text-muted: #D4AC0D;
            --text-light: #A6A6A8;
            --border-color: rgba(197, 160, 89, 0.25);
            --card-bg: #1E1E20;
            --btn-gradient: linear-gradient(135deg, #C5A059 0%, #FFBF00 100%);
            --shadow-gold: 0 4px 20px rgba(197, 160, 89, 0.3);
            --shadow-hover: 0 8px 30px rgba(197, 160, 89, 0.45);
            --container-max: 1240px;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--primary-bg);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        a {
            text-decoration: none;
            color: inherit;
        }

        /* Navbar */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(18, 18, 18, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            padding: 14px 0;
            transition: var(--transition-base);
        }

        .navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-gold);
            text-decoration: none;
            letter-spacing: -0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .logo i {
            color: var(--accent-amber);
            font-size: 1.7rem;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
        }

        .nav-links a {
            color: var(--text-light);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition-base);
            position: relative;
            padding: 6px 0;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-gold);
            transition: width 0.25s ease;
        }

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

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .btn-login {
            background: transparent;
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            padding: 10px 24px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
        }

        .btn-login:hover {
            background: rgba(197, 160, 89, 0.12);
            border-color: var(--accent-amber);
            color: var(--accent-amber);
        }

        .btn-signup {
            background: var(--btn-gradient);
            color: #121212;
            border: none;
            padding: 10px 24px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
            box-shadow: var(--shadow-gold);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--accent-gold);
            font-size: 1.8rem;
            cursor: pointer;
        }

        /* Hero */
        .hero {
            padding: 140px 0 80px;
            background: linear-gradient(180deg, #1E1E20 0%, #121212 100%);
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -80px;
            width: 450px;
            height: 450px;
            background: radial-gradient(circle, rgba(197, 160, 89, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-content h1 {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.25;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #F5F5F7 0%, #D4AC0D 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-content p {
            font-size: 1.15rem;
            color: var(--text-light);
            margin-bottom: 32px;
            line-height: 1.7;
            max-width: 520px;
        }

        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 32px;
        }

        .badge {
            background: rgba(197, 160, 89, 0.1);
            border: 1px solid var(--border-color);
            border-radius: 30px;
            padding: 8px 18px;
            font-size: 0.85rem;
            color: var(--accent-gold);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .badge i {
            font-size: 0.9rem;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--btn-gradient);
            color: #121212;
            border: none;
            padding: 14px 36px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
            box-shadow: var(--shadow-gold);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .hero-visual {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px;
            position: relative;
        }

        .hero-visual img {
            border-radius: var(--radius-md);
            width: 100%;
            object-fit: cover;
            max-height: 320px;
        }

        .hero-visual .quick-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            margin-top: 24px;
        }

        .stat-item {
            background: rgba(197, 160, 89, 0.05);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 16px;
            text-align: center;
        }

        .stat-number {
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--accent-amber);
            line-height: 1;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 0.8rem;
            color: var(--text-light);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        /* Section */
        section {
            padding: 80px 0;
        }

        .section-header {
            margin-bottom: 48px;
        }

        .section-subtitle {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(197, 160, 89, 0.08);
            border: 1px solid var(--border-color);
            border-radius: 30px;
            padding: 6px 16px;
            font-size: 0.85rem;
            color: var(--accent-gold);
            font-weight: 600;
            margin-bottom: 16px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .section-header h2 {
            font-size: 2.5rem;
            font-weight: 900;
            line-height: 1.2;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .section-header p {
            font-size: 1.1rem;
            color: var(--text-light);
            max-width: 720px;
            line-height: 1.7;
        }

        /* Feature Grid */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px;
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-amber));
            opacity: 0;
            transition: opacity 0.3s ease;
        }

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

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

        .feature-icon {
            width: 52px;
            height: 52px;
            background: rgba(197, 160, 89, 0.15);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            font-size: 1.5rem;
            color: var(--accent-amber);
        }

        .feature-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

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

        /* Pain Point Section */
        .pain-solution {
            background: var(--secondary-bg);
        }

        .pain-solution .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }

        .pain-box,
        .solution-box {
            padding: 40px;
            border-radius: var(--radius-lg);
        }

        .pain-box {
            background: rgba(211, 47, 47, 0.08);
            border: 1px solid rgba(211, 47, 47, 0.3);
        }

        .solution-box {
            background: rgba(197, 160, 89, 0.08);
            border: 1px solid var(--border-color);
        }

        .pain-box h3,
        .solution-box h3 {
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .pain-box h3 {
            color: #EF5350;
        }

        .solution-box h3 {
            color: var(--accent-amber);
        }

        .check-list {
            list-style: none;
        }

        .check-list li {
            margin-bottom: 14px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.5;
        }

        .check-list i {
            margin-top: 3px;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .pain-box .check-list i {
            color: #EF5350;
        }

        .solution-box .check-list i {
            color: var(--accent-amber);
        }

        /* Table Section */
        .ranking-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
        }

        .ranking-table thead {
            background: rgba(197, 160, 89, 0.1);
        }

        .ranking-table th {
            padding: 18px 20px;
            text-align: left;
            font-size: 0.85rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--accent-gold);
        }

        .ranking-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-color);
            color: var(--text-light);
            font-size: 0.95rem;
        }

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

        .ranking-table tbody tr:hover {
            background: rgba(197, 160, 89, 0.05);
        }

        .highlight-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 700;
        }

        .tag-win {
            background: rgba(76, 175, 80, 0.2);
            color: #66BB6A;
        }

        .tag-top {
            background: rgba(197, 160, 89, 0.2);
            color: var(--accent-amber);
        }

        /* CTA Strip */
        .cta-strip {
            background: linear-gradient(135deg, #1E1E20 0%, #2A2A2E 100%);
            border-top: 2px solid var(--accent-gold);
            border-bottom: 2px solid var(--accent-gold);
            padding: 60px 0;
            text-align: center;
        }

        .cta-strip h2 {
            font-size: 2rem;
            font-weight: 900;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .cta-strip p {
            color: var(--text-light);
            margin-bottom: 28px;
            font-size: 1.05rem;
        }

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

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition-base);
        }

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

        .faq-question {
            padding: 24px 28px;
            width: 100%;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.1rem;
            font-weight: 600;
            text-align: left;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: color 0.3s ease;
        }

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

        .faq-question i {
            transition: transform 0.3s ease;
            color: var(--accent-gold);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 28px;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 28px 24px;
        }

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

        /* Footer */
        .footer {
            background: #0A0A0B;
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 20px;
        }

        .footer-col p {
            color: var(--text-light);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .footer-col a {
            display: block;
            color: var(--text-light);
            font-size: 0.9rem;
            margin-bottom: 12px;
            transition: color 0.3s ease;
            text-decoration: none;
            width: fit-content;
        }

        .footer-col a:hover {
            color: var(--accent-amber);
            text-decoration: underline;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 24px;
        }

        .footer-bottom p {
            color: var(--text-light);
            font-size: 0.85rem;
            line-height: 1.6;
            margin: 0;
        }

        .footer-bottom i {
            color: var(--accent-amber);
            margin-right: 4px;
        }

        /* FAB */
        .fab-container {
            position: fixed;
            left: 24px;
            bottom: 96px;
            z-index: 50;
        }

        .fab-main {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--btn-gradient);
            border: 2px solid var(--accent-amber);
            box-shadow: 0 4px 20px rgba(197, 160, 89, 0.35);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: #121212;
            transition: var(--transition-base);
            position: relative;
            animation: float 3s ease-in-out infinite;
        }

        .fab-main:hover {
            transform: scale(1.1);
            box-shadow: 0 8px 30px rgba(197, 160, 89, 0.5);
        }

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

        .fab-notification {
            position: absolute;
            top: 4px;
            right: 4px;
            width: 14px;
            height: 14px;
            background: #D32F2F;
            border: 2px solid #121212;
            border-radius: 50%;
            animation: pulse-dot 2s ease-in-out infinite;
        }

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

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

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

            .hero-visual {
                order: -1;
            }

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

            .section-header h2 {
                font-size: 2rem;
            }

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

            .pain-solution .container {
                grid-template-columns: 1fr;
            }

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

        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }

            .nav-links {
                position: fixed;
                top: 72px;
                left: 0;
                width: 100%;
                background: rgba(18, 18, 18, 0.95);
                backdrop-filter: blur(10px);
                flex-direction: column;
                padding: 24px;
                gap: 8px;
                display: none;
                border-bottom: 1px solid var(--border-color);
            }

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

            .nav-actions {
                gap: 8px;
            }

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

            .hero {
                padding: 120px 0 60px;
            }

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

            section {
                padding: 48px 0;
            }

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

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

            .pain-box,
            .solution-box {
                padding: 28px;
            }

            .ranking-table {
                display: block;
                overflow-x: auto;
            }

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

            .fab-container {
                left: 16px;
                bottom: 80px;
            }

            .fab-main {
                width: 48px;
                height: 48px;
                font-size: 1.3rem;
            }
        }

        @media (max-width: 480px) {
            .container {
                padding: 0 16px;
            }

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

            .hero-content p {
                font-size: 1rem;
            }

            .hero-badges {
                gap: 10px;
            }

            .badge {
                padding: 6px 14px;
                font-size: 0.75rem;
            }

            .btn-primary {
                padding: 12px 24px;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }

            .hero-visual {
                padding: 20px;
            }

            .hero-visual .quick-stats {
                grid-template-columns: repeat(3, 1fr);
                gap: 8px;
            }

            .stat-item {
                padding: 12px 8px;
            }

            .stat-number {
                font-size: 1.2rem;
            }

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

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

            .faq-question {
                padding: 20px;
                font-size: 1rem;
            }

            .faq-item.open .faq-answer {
                padding: 0 20px 20px;
            }
        }

/* roulang page: category3 */
:root {
            --primary-bg: #121212;
            --secondary-bg: #1C1C1E;
            --accent-gold: #C5A059;
            --accent-amber: #FFBF00;
            --text-primary: #F5F5F7;
            --text-muted: #D4AC0D;
            --text-light: #A6A6A8;
            --border-color: rgba(197, 160, 89, 0.25);
            --card-bg: #1E1E20;
            --btn-gradient: linear-gradient(135deg, #C5A059 0%, #FFBF00 100%);
            --shadow-gold: 0 4px 20px rgba(197, 160, 89, 0.3);
            --shadow-hover: 0 8px 30px rgba(197, 160, 89, 0.45);
            --container-max: 1240px;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--primary-bg);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

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

        a {
            text-decoration: none;
            color: inherit;
        }

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

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

        /* Navbar */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(18, 18, 18, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            padding: 14px 0;
            transition: var(--transition-base);
        }

        .navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-gold);
            text-decoration: none;
            letter-spacing: -0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .logo i {
            color: var(--accent-amber);
            font-size: 1.7rem;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
        }

        .nav-links a {
            color: var(--text-light);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition-base);
            position: relative;
            padding: 6px 0;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-gold);
            transition: width 0.25s ease;
        }

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

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .btn-login {
            background: transparent;
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            padding: 10px 24px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
        }

        .btn-login:hover {
            background: rgba(197, 160, 89, 0.12);
            border-color: var(--accent-amber);
            color: var(--accent-amber);
        }

        .btn-signup {
            background: var(--btn-gradient);
            color: #121212;
            border: none;
            padding: 10px 24px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
            box-shadow: var(--shadow-gold);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--accent-gold);
            font-size: 1.8rem;
            cursor: pointer;
        }

        /* Page Hero */
        .page-hero {
            padding: 140px 0 80px;
            background: linear-gradient(180deg, #1E1E20 0%, #121212 100%);
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -80px;
            width: 450px;
            height: 450px;
            background: radial-gradient(circle, rgba(197, 160, 89, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .breadcrumb {
            display: flex;
            gap: 8px;
            align-items: center;
            margin-bottom: 20px;
            font-size: 0.9rem;
            color: var(--text-light);
            flex-wrap: wrap;
        }

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

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

        .breadcrumb span {
            color: var(--text-primary);
        }

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

        .page-hero-content h1 {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.25;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #F5F5F7 0%, #D4AC0D 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-hero-content p {
            font-size: 1.15rem;
            color: var(--text-light);
            margin-bottom: 32px;
            line-height: 1.7;
            max-width: 520px;
        }

        .page-hero-cta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .btn-primary {
            background: var(--btn-gradient);
            color: #121212;
            border: none;
            padding: 14px 32px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
            box-shadow: var(--shadow-gold);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            padding: 14px 32px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-outline:hover {
            background: rgba(197, 160, 89, 0.12);
            border-color: var(--accent-amber);
            color: var(--accent-amber);
        }

        .page-hero-visual {
            position: relative;
        }

        .page-hero-visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-gold);
            width: 100%;
            object-fit: cover;
        }

        .stat-badge {
            position: absolute;
            bottom: 30px;
            left: -20px;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 16px 24px;
            display: flex;
            align-items: center;
            gap: 12px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
        }

        .stat-badge .stat-icon {
            width: 48px;
            height: 48px;
            background: rgba(197, 160, 89, 0.15);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-amber);
        }

        .stat-badge .stat-info {
            display: flex;
            flex-direction: column;
        }

        .stat-badge .stat-value {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--accent-gold);
        }

        .stat-badge .stat-label {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        /* Sections */
        section {
            padding: 80px 0;
        }

        .section-label {
            display: inline-block;
            background: rgba(197, 160, 89, 0.1);
            border: 1px solid var(--border-color);
            border-radius: 30px;
            padding: 6px 16px;
            font-size: 0.85rem;
            color: var(--accent-gold);
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .section-title {
            font-size: 2.3rem;
            font-weight: 800;
            margin-bottom: 16px;
            line-height: 1.3;
            color: var(--text-primary);
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-light);
            margin-bottom: 40px;
            line-height: 1.7;
            max-width: 700px;
        }

        /* Pain Points Section */
        .pain-points {
            background: var(--secondary-bg);
        }

        .pain-points-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .pain-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px;
            transition: var(--transition-base);
            text-align: center;
        }

        .pain-card:hover {
            border-color: var(--accent-gold);
            box-shadow: 0 8px 25px rgba(197, 160, 89, 0.15);
            transform: translateY(-4px);
        }

        .pain-icon {
            width: 64px;
            height: 64px;
            background: rgba(197, 160, 89, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.8rem;
            color: var(--accent-amber);
        }

        .pain-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

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

        /* Solution Section */
        .solution-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            margin-bottom: 60px;
        }

        .solution-block:last-child {
            margin-bottom: 0;
        }

        .solution-block.reverse {
            direction: rtl;
        }

        .solution-block.reverse .solution-text {
            direction: ltr;
        }

        .solution-text h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--text-primary);
            line-height: 1.3;
        }

        .solution-text p {
            font-size: 1.05rem;
            color: var(--text-light);
            margin-bottom: 20px;
            line-height: 1.7;
        }

        .solution-features {
            list-style: none;
            padding: 0;
            margin-bottom: 24px;
        }

        .solution-features li {
            padding: 10px 0;
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 0.95rem;
            color: var(--text-primary);
            border-bottom: 1px solid var(--border-color);
        }

        .solution-features li:last-child {
            border-bottom: none;
        }

        .solution-features li i {
            color: var(--accent-amber);
            font-size: 1.1rem;
            margin-top: 2px;
            flex-shrink: 0;
        }

        .solution-visual img {
            border-radius: var(--radius-lg);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
            width: 100%;
            object-fit: cover;
        }

        /* Strategy Cards */
        .strategy-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .strategy-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px;
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .strategy-card:hover {
            border-color: var(--accent-gold);
            box-shadow: 0 8px 25px rgba(197, 160, 89, 0.15);
            transform: translateY(-3px);
        }

        .strategy-card .card-header {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .strategy-card .card-icon {
            width: 56px;
            height: 56px;
            background: rgba(197, 160, 89, 0.12);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent-amber);
            flex-shrink: 0;
        }

        .strategy-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
        }

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

        .strategy-card .card-meta {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .card-tag {
            background: rgba(197, 160, 89, 0.1);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 4px 14px;
            font-size: 0.8rem;
            color: var(--accent-gold);
            font-weight: 600;
        }

        /* Results Section */
        .results-section {
            background: var(--secondary-bg);
        }

        .results-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .result-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            transition: var(--transition-base);
        }

        .result-card:hover {
            border-color: var(--accent-gold);
            transform: translateY(-4px);
            box-shadow: 0 8px 25px rgba(197, 160, 89, 0.15);
        }

        .result-card .result-number {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--accent-gold);
            margin-bottom: 8px;
            line-height: 1;
        }

        .result-card .result-label {
            font-size: 0.95rem;
            color: var(--text-light);
        }

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

        /* Testimonials */
        .testimonial-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px;
            max-width: 700px;
            margin: 40px auto 0;
            text-align: center;
            transition: var(--transition-base);
        }

        .testimonial-card:hover {
            border-color: var(--accent-gold);
            box-shadow: 0 8px 30px rgba(197, 160, 89, 0.2);
        }

        .testimonial-quote {
            font-size: 1.15rem;
            color: var(--text-primary);
            line-height: 1.7;
            font-style: italic;
            margin-bottom: 20px;
        }

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

        .testimonial-author .author-avatar {
            width: 48px;
            height: 48px;
            background: var(--accent-amber);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: #121212;
            font-weight: 700;
        }

        .testimonial-author .author-info {
            text-align: left;
        }

        .testimonial-author strong {
            display: block;
            font-size: 0.95rem;
            color: var(--text-primary);
        }

        .testimonial-author span {
            font-size: 0.8rem;
            color: var(--text-light);
        }

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

        .faq-list {
            max-width: 800px;
            margin: 40px auto 0;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-question {
            padding: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-primary);
            transition: var(--transition-base);
        }

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

        .faq-question i {
            transition: transform 0.3s ease;
            color: var(--accent-amber);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 24px 24px;
        }

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

        .faq-item.active {
            border-color: var(--accent-gold);
            box-shadow: 0 4px 15px rgba(197, 160, 89, 0.15);
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #1C1C1E 0%, #2A2A2D 100%);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -150px;
            left: 50%;
            transform: translateX(-50%);
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(197, 160, 89, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .cta-section h2 {
            font-size: 2.3rem;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .cta-section p {
            font-size: 1.1rem;
            color: var(--text-light);
            margin-bottom: 32px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        /* Footer */
        .footer {
            background: #0D0D0F;
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 20px;
        }

        .footer-col p,
        .footer-col a {
            display: block;
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 10px;
            transition: var(--transition-base);
            text-decoration: none;
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            color: var(--text-light);
            font-size: 0.85rem;
        }

        /* Mobile Nav */
        @media (max-width: 1024px) {
            .page-hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .page-hero-content h1 {
                font-size: 2.3rem;
            }

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

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

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

            .solution-block.reverse {
                direction: ltr;
            }

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

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

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: rgba(18, 18, 18, 0.95);
                backdrop-filter: blur(20px);
                border-bottom: 1px solid var(--border-color);
                padding: 24px;
                gap: 16px;
            }

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

            .hamburger {
                display: block;
            }

            .nav-actions {
                gap: 8px;
            }

            .btn-login,
            .btn-signup {
                padding: 8px 16px;
                font-size: 0.85rem;
            }

            .page-hero {
                padding: 120px 0 50px;
            }

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

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

            .pain-points-grid {
                grid-template-columns: 1fr;
            }

            .results-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .result-card {
                padding: 24px 16px;
            }

            .result-card .result-number {
                font-size: 2rem;
            }

            .cta-section h2 {
                font-size: 1.8rem;
            }

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

            .stat-badge {
                left: 0;
                bottom: 20px;
                padding: 12px 18px;
            }
        }

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

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

            .page-hero-content p {
                font-size: 1rem;
            }

            .section-title {
                font-size: 1.5rem;
            }

            .btn-primary,
            .btn-outline {
                width: 100%;
                justify-content: center;
                padding: 12px 24px;
            }

            .page-hero-cta {
                flex-direction: column;
            }

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

            .strategy-card {
                padding: 24px;
            }

            .cta-buttons {
                flex-direction: column;
            }

            .cta-buttons .btn-primary,
            .cta-buttons .btn-outline {
                width: 100%;
            }
        }