/* roulang page: index */
:root {
            --bg-primary: #0F0C20;
            --bg-secondary: #0B1A30;
            --bg-card: rgba(15, 12, 32, 0.85);
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --accent-pink: #FF007F;
            --text-primary: #FFFFFF;
            --text-secondary: #A6ACAF;
            --text-muted: #6B7280;
            --border-neon: 1px solid rgba(0, 240, 255, 0.3);
            --border-lime: 1px solid rgba(204, 255, 0, 0.4);
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.25);
            --shadow-lime: 0 0 20px rgba(204, 255, 0, 0.2);
            --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            margin: 0;
            padding: 0;
            font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            background: linear-gradient(160deg, var(--bg-primary) 0%, var(--bg-secondary) 60%, #0A1525 100%);
            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: 1240px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            background: rgba(15, 12, 32, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.15);
            transition: var(--transition-smooth);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }

        .logo-text {
            font-size: 1.4rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            text-decoration: none;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            padding: 8px 4px;
            position: relative;
            transition: var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-cyan);
            transition: var(--transition-fast);
            border-radius: 2px;
        }

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

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

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

        .btn-nav-login {
            color: var(--text-primary);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 10px 18px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition-fast);
            white-space: nowrap;
        }

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

        .btn-nav-signup {
            color: #0F0C20;
            background: var(--accent-lime);
            border: none;
            padding: 10px 22px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 0 12px rgba(204, 255, 0, 0.3);
        }

        .btn-nav-signup:hover {
            background: #E6FF33;
            box-shadow: 0 0 20px rgba(204, 255, 0, 0.5);
            transform: translateY(-1px);
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 1.6rem;
            cursor: pointer;
        }

        /* Hero */
        .hero-section {
            padding: 150px 0 80px;
            position: relative;
            overflow: hidden;
            background: linear-gradient(180deg, rgba(0, 240, 255, 0.05) 0%, transparent 40%);
        }

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

        .hero-content h1 {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.15;
            margin-bottom: 20px;
            color: var(--text-primary);
            letter-spacing: -0.8px;
        }

        .hero-content .highlight {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 30px;
        }

        .hero-cta-group {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
            align-items: center;
        }

        .btn-cta-primary {
            background: var(--accent-cyan);
            color: #0A0F1F;
            padding: 14px 32px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            text-decoration: none;
            border: none;
            cursor: pointer;
            transition: var(--transition-smooth);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.35);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-cta-primary:hover {
            background: #33F5FF;
            box-shadow: 0 0 40px rgba(0, 240, 255, 0.55);
            transform: translateY(-2px);
            color: #0A0F1F;
        }

        .btn-cta-outline {
            background: transparent;
            color: var(--text-primary);
            border: 2px solid rgba(255, 255, 255, 0.25);
            padding: 12px 30px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            text-decoration: none;
            cursor: pointer;
            transition: var(--transition-smooth);
        }

        .btn-cta-outline:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.2);
        }

        .hero-visual {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: 0 0 60px rgba(0, 240, 255, 0.15), 0 20px 50px rgba(0, 0, 0, 0.5);
            border: 1px solid rgba(0, 240, 255, 0.25);
            aspect-ratio: 4/3;
        }

        .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        .countdown-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 0, 127, 0.15);
            border: 1px solid var(--accent-pink);
            padding: 8px 16px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--accent-pink);
            margin-bottom: 15px;
            animation: pulse-badge 2s infinite;
        }

        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 10px rgba(255, 0, 127, 0.3);
            }
            50% {
                box-shadow: 0 0 25px rgba(255, 0, 127, 0.6);
            }
        }

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

        .section-header {
            margin-bottom: 50px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--accent-cyan);
            margin-bottom: 10px;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 15px;
            line-height: 1.3;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 600px;
            line-height: 1.6;
        }

        /* Series Navigation */
        .series-nav-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .series-nav-card {
            background: var(--bg-card);
            border: var(--border-neon);
            border-radius: var(--radius-lg);
            padding: 30px 20px;
            text-align: center;
            text-decoration: none;
            color: var(--text-primary);
            transition: var(--transition-smooth);
            position: relative;
            backdrop-filter: blur(10px);
        }

        .series-nav-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-neon);
            transform: translateY(-4px);
            color: var(--text-primary);
        }

        .series-nav-icon {
            font-size: 2.4rem;
            margin-bottom: 15px;
            color: var(--accent-cyan);
        }

        .series-nav-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 5px;
        }

        .series-nav-card p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin: 0;
        }

        /* Hot Picks Grid */
        .hot-picks-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .hot-pick-card {
            background: var(--bg-card);
            border: var(--border-lime);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition-smooth);
            position: relative;
            backdrop-filter: blur(10px);
        }

        .hot-pick-card:hover {
            border-color: var(--accent-lime);
            box-shadow: var(--shadow-lime);
            transform: translateY(-6px);
        }

        .hot-pick-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }

        .hot-pick-body {
            padding: 20px;
        }

        .hot-pick-body h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .hot-pick-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 15px;
            line-height: 1.5;
        }

        .tag-hot {
            display: inline-block;
            background: var(--accent-pink);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 20px;
            text-transform: uppercase;
        }

        .tag-new {
            display: inline-block;
            background: var(--accent-lime);
            color: #0A0F1F;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 20px;
            text-transform: uppercase;
        }

        /* News Section */
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 360px;
            gap: 40px;
            align-items: start;
        }

        .news-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .news-list li {
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            padding: 18px 0;
            transition: var(--transition-fast);
        }

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

        .news-list a {
            color: var(--text-primary);
            text-decoration: none;
            font-size: 1rem;
            font-weight: 600;
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            gap: 15px;
            transition: var(--transition-fast);
        }

        .news-list a:hover {
            color: var(--accent-cyan);
        }

        .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            white-space: nowrap;
            font-weight: 400;
        }

        .news-sidebar-card {
            background: var(--bg-card);
            border: var(--border-neon);
            border-radius: var(--radius-lg);
            padding: 30px;
            backdrop-filter: blur(10px);
        }

        .news-sidebar-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 15px;
            color: var(--accent-cyan);
        }

        .news-sidebar-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Campaign Section */
        .campaign-block {
            background: linear-gradient(135deg, rgba(255, 0, 127, 0.1), rgba(0, 240, 255, 0.08));
            border: 1px solid rgba(255, 0, 127, 0.35);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            position: relative;
            overflow: hidden;
        }

        .campaign-block::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(204, 255, 0, 0.15), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .campaign-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .campaign-content h3 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 15px;
        }

        .campaign-content p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .campaign-gift-list {
            list-style: none;
            margin: 0 0 20px 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .campaign-gift-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            font-size: 0.95rem;
        }

        .campaign-gift-list i {
            color: var(--accent-lime);
        }

        .campaign-visual img {
            width: 100%;
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 0, 127, 0.3);
        }

        /* Pricing Comparison */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .pricing-card {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 35px 25px;
            transition: var(--transition-smooth);
            text-align: left;
            backdrop-filter: blur(10px);
        }

        .pricing-card.featured {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-neon);
            position: relative;
            transform: scale(1.03);
        }

        .pricing-card h4 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .pricing-card .price {
            font-size: 2rem;
            font-weight: 900;
            color: var(--accent-lime);
            margin-bottom: 15px;
        }

        .pricing-card ul {
            list-style: none;
            margin: 0 0 20px 0;
            padding: 0;
        }

        .pricing-card ul li {
            padding: 8px 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .btn-pricing {
            width: 100%;
            padding: 12px;
            border-radius: 30px;
            font-weight: 700;
            text-align: center;
            cursor: pointer;
            font-size: 0.95rem;
            transition: var(--transition-fast);
            border: none;
            display: block;
            text-decoration: none;
        }

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

        .btn-pricing-solid {
            background: var(--accent-lime);
            color: #0A0F1F;
        }

        .btn-pricing-outline:hover {
            background: rgba(0, 240, 255, 0.1);
            color: #fff;
        }
        .btn-pricing-solid:hover {
            background: #E6FF33;
            color: #0A0F1F;
        }

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

        .faq-item {
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
        }

        .faq-question {
            font-size: 1.1rem;
            font-weight: 700;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-primary);
            transition: var(--transition-fast);
        }

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

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

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 12px;
        }

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

        /* Footer */
        .site-footer {
            background: rgba(10, 15, 31, 0.95);
            border-top: 1px solid rgba(0, 240, 255, 0.15);
            padding: 50px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 15px;
            color: var(--text-primary);
        }

        .footer-col p,
        .footer-col a {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            text-decoration: none;
            display: block;
            margin-bottom: 8px;
            transition: var(--transition-fast);
        }

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

        .footer-bottom {
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-muted);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 25px;
        }

        /* FAB */
        .fab-floating {
            position: fixed;
            left: 20px;
            bottom: 80px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(15, 12, 32, 0.85);
            backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition-smooth);
            opacity: 0.75;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.35);
            animation: float-fab 3s ease-in-out infinite;
        }

        .fab-floating::before {
            content: '';
            position: absolute;
            inset: -3px;
            border-radius: 50%;
            padding: 3px;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            pointer-events: none;
        }

        .fab-floating i {
            font-size: 1.6rem;
            color: var(--accent-cyan);
            position: relative;
            z-index: 2;
        }

        .fab-floating:hover {
            opacity: 1;
            transform: scale(1.15);
            box-shadow: 0 0 35px rgba(0, 240, 255, 0.6);
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-content h1 {
                font-size: 2.4rem;
            }
            .series-nav-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hot-picks-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .campaign-grid {
                grid-template-columns: 1fr;
            }
            .pricing-grid {
                grid-template-columns: 1fr 1fr;
            }
            .pricing-card.featured {
                transform: scale(1);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: rgba(15, 12, 32, 0.98);
                flex-direction: column;
                padding: 20px;
                border-bottom: 1px solid rgba(0, 240, 255, 0.2);
            }
            .nav-links.show {
                display: flex;
            }
            .mobile-toggle {
                display: block;
            }
            .hero-section {
                padding: 120px 0 50px;
            }
            .hero-content h1 {
                font-size: 2rem;
            }
            .series-nav-grid {
                grid-template-columns: 1fr;
            }
            .hot-picks-grid {
                grid-template-columns: 1fr;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .fab-floating {
                left: 12px;
                bottom: 60px;
                width: 48px;
                height: 48px;
            }
            .nav-actions .btn-nav-login,
            .nav-actions .btn-nav-signup {
                display: inline-block;
                font-size: 0.8rem;
                padding: 8px 14px;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.7rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .campaign-block {
                padding: 30px 20px;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0F0C20;
            --bg-secondary: #0B1A30;
            --bg-card: rgba(15, 12, 32, 0.85);
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --accent-pink: #FF007F;
            --text-primary: #FFFFFF;
            --text-secondary: #A6ACAF;
            --text-muted: #6B7280;
            --border-neon: 1px solid rgba(0, 240, 255, 0.3);
            --border-lime: 1px solid rgba(204, 255, 0, 0.4);
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.25);
            --shadow-lime: 0 0 20px rgba(204, 255, 0, 0.2);
            --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            box-sizing: border-box;
        }

        body {
            margin: 0;
            padding: 0;
            font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            background: linear-gradient(160deg, var(--bg-primary) 0%, var(--bg-secondary) 60%, #0A1525 100%);
            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: 1240px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            background: rgba(15, 12, 32, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.15);
            transition: var(--transition-smooth);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }

        .logo-text {
            font-size: 1.4rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            text-decoration: none;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            padding: 8px 4px;
            position: relative;
            transition: var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-cyan);
            transition: var(--transition-fast);
            border-radius: 2px;
        }

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

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

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

        .btn-nav-login {
            color: var(--text-primary);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 10px 18px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition-fast);
            white-space: nowrap;
        }

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

        .btn-nav-signup {
            color: #0F0C20;
            background: var(--accent-lime);
            border: none;
            padding: 10px 22px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 0 12px rgba(204, 255, 0, 0.3);
        }

        .btn-nav-signup:hover {
            background: #E6FF33;
            box-shadow: 0 0 20px rgba(204, 255, 0, 0.5);
            transform: translateY(-1px);
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 1.6rem;
            cursor: pointer;
        }

        /* Article Page Specific */
        .article-wrapper {
            padding: 120px 0 60px;
        }

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

        .article-main {
            background: var(--bg-card);
            backdrop-filter: blur(15px);
            -webkit-backdrop-filter: blur(15px);
            border: var(--border-neon);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-neon);
        }

        .article-header {
            margin-bottom: 30px;
            border-bottom: 1px solid rgba(0, 240, 255, 0.2);
            padding-bottom: 25px;
        }

        .article-category-badge {
            display: inline-block;
            background: rgba(204, 255, 0, 0.1);
            color: var(--accent-lime);
            font-size: 0.8rem;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 20px;
            border: 1px solid rgba(204, 255, 0, 0.3);
            margin-bottom: 15px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .article-header h1 {
            font-size: 2.2rem;
            font-weight: 900;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .article-meta i {
            color: var(--accent-cyan);
            margin-right: 5px;
        }

        .article-content {
            color: var(--text-secondary);
            line-height: 1.8;
            font-size: 1.05rem;
            word-wrap: break-word;
        }

        .article-content h2 {
            color: var(--text-primary);
            font-size: 1.6rem;
            font-weight: 700;
            margin: 30px 0 15px;
            border-left: 4px solid var(--accent-cyan);
            padding-left: 15px;
        }

        .article-content h3 {
            color: var(--accent-lime);
            font-size: 1.3rem;
            font-weight: 600;
            margin: 25px 0 10px;
        }

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

        .article-content img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-md);
            margin: 20px 0;
            border: 1px solid rgba(0, 240, 255, 0.2);
        }

        .article-content a {
            color: var(--accent-cyan);
            text-decoration: none;
            border-bottom: 1px dotted var(--accent-cyan);
            transition: var(--transition-fast);
        }

        .article-content a:hover {
            color: var(--accent-lime);
            border-bottom-color: var(--accent-lime);
        }

        .article-content ul,
        .article-content ol {
            padding-left: 20px;
            margin-bottom: 18px;
        }

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

        .not-found-message {
            text-align: center;
            padding: 60px 20px;
            color: var(--text-secondary);
        }

        .not-found-message i {
            font-size: 3rem;
            color: var(--accent-cyan);
            margin-bottom: 20px;
            display: block;
        }

        .not-found-message h2 {
            color: var(--text-primary);
            font-size: 1.8rem;
            margin-bottom: 10px;
        }

        .not-found-message .btn-back {
            display: inline-block;
            margin-top: 20px;
            background: var(--accent-cyan);
            color: #0F0C20;
            padding: 12px 28px;
            border-radius: 30px;
            font-weight: 700;
            text-decoration: none;
            transition: var(--transition-fast);
        }

        .not-found-message .btn-back:hover {
            background: var(--accent-lime);
            box-shadow: var(--shadow-lime);
        }

        /* Sidebar */
        .article-sidebar {
            position: sticky;
            top: 100px;
        }

        .sidebar-card {
            background: var(--bg-card);
            backdrop-filter: blur(15px);
            -webkit-backdrop-filter: blur(15px);
            border: var(--border-neon);
            border-radius: var(--radius-lg);
            padding: 25px;
            margin-bottom: 25px;
            box-shadow: var(--shadow-neon);
        }

        .sidebar-card h3 {
            color: var(--accent-cyan);
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 18px;
            padding-bottom: 10px;
            border-bottom: 1px solid rgba(0, 240, 255, 0.2);
        }

        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .sidebar-card ul li {
            margin-bottom: 12px;
        }

        .sidebar-card ul li a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.95rem;
            transition: var(--transition-fast);
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }

        .sidebar-card ul li a i {
            color: var(--accent-lime);
            font-size: 0.7rem;
            margin-top: 5px;
        }

        .sidebar-card ul li a:hover {
            color: var(--accent-cyan);
        }

        .promo-banner {
            background: linear-gradient(135deg, rgba(204, 255, 0, 0.1), rgba(0, 240, 255, 0.1));
            border: var(--border-lime);
            border-radius: var(--radius-lg);
            padding: 30px;
            text-align: center;
            box-shadow: var(--shadow-lime);
        }

        .promo-banner h3 {
            color: var(--accent-lime);
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: 15px;
        }

        .promo-banner p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 20px;
            line-height: 1.6;
        }

        .btn-promo {
            display: inline-block;
            background: var(--accent-pink);
            color: #fff;
            padding: 12px 30px;
            border-radius: 30px;
            font-weight: 700;
            text-decoration: none;
            transition: var(--transition-fast);
            box-shadow: 0 0 15px rgba(255, 0, 127, 0.4);
        }

        .btn-promo:hover {
            background: #FF3399;
            box-shadow: 0 0 25px rgba(255, 0, 127, 0.6);
            transform: translateY(-2px);
        }

        /* CTA Section */
        .cta-section {
            padding: 60px 0;
            margin-top: 40px;
        }

        .cta-card {
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.08), rgba(204, 255, 0, 0.08));
            border: var(--border-neon);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            box-shadow: var(--shadow-neon);
        }

        .cta-card h2 {
            font-size: 2rem;
            font-weight: 900;
            color: var(--text-primary);
            margin-bottom: 15px;
        }

        .cta-card p {
            color: var(--text-secondary);
            font-size: 1.1rem;
            margin-bottom: 25px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-btn-group {
            display: flex;
            justify-content: center;
            gap: 15px;
            flex-wrap: wrap;
        }

        .btn-neon {
            background: var(--accent-cyan);
            color: #0F0C20;
            padding: 14px 35px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            text-decoration: none;
            transition: var(--transition-fast);
            box-shadow: var(--shadow-neon);
        }

        .btn-neon:hover {
            background: #33F5FF;
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.5);
            transform: translateY(-2px);
        }

        .btn-outline-neon {
            background: transparent;
            color: var(--accent-cyan);
            padding: 14px 35px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            text-decoration: none;
            border: 2px solid var(--accent-cyan);
            transition: var(--transition-fast);
        }

        .btn-outline-neon:hover {
            background: rgba(0, 240, 255, 0.1);
            box-shadow: var(--shadow-neon);
        }

        /* Footer */
        .site-footer {
            background: rgba(15, 12, 32, 0.95);
            border-top: 1px solid rgba(0, 240, 255, 0.2);
            padding: 60px 0 30px;
            margin-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            color: var(--accent-cyan);
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 1px solid rgba(0, 240, 255, 0.2);
        }

        .footer-col p,
        .footer-col a {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.8;
            display: block;
            margin-bottom: 8px;
            text-decoration: none;
            transition: var(--transition-fast);
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: 25px;
            border-top: 1px solid rgba(0, 240, 255, 0.15);
        }

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

        /* FAB */
        .fab-floating {
            position: fixed;
            left: 20px;
            bottom: 100px;
            z-index: 90;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(15, 12, 32, 0.8);
            backdrop-filter: blur(15px);
            -webkit-backdrop-filter: blur(15px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(15, 12, 32, 0.8), rgba(15, 12, 32, 0.8)), linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-lime);
            cursor: pointer;
            transition: var(--transition-smooth);
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
            opacity: 0.7;
            animation: pulse-glow 2.5s infinite alternate;
        }

        .fab-floating:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.6);
            color: #fff;
        }

        @keyframes pulse-glow {
            0% { box-shadow: 0 0 15px rgba(0, 240, 255, 0.3); }
            100% { box-shadow: 0 0 25px rgba(204, 255, 0, 0.4); }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .article-container {
                grid-template-columns: 1fr;
            }
            .article-sidebar {
                position: static;
            }
            .article-main {
                padding: 25px;
            }
            .article-header h1 {
                font-size: 1.8rem;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                flex-direction: column;
                background: rgba(15, 12, 32, 0.98);
                backdrop-filter: blur(20px);
                padding: 25px;
                border-bottom: 1px solid rgba(0, 240, 255, 0.2);
                gap: 16px;
                z-index: 99;
            }
            .nav-links.active-mobile {
                display: flex;
            }
            .mobile-toggle {
                display: block;
            }
            .nav-actions {
                gap: 6px;
            }
            .btn-nav-login {
                font-size: 0.75rem;
                padding: 8px 14px;
            }
            .btn-nav-signup {
                font-size: 0.75rem;
                padding: 8px 16px;
            }
            .article-header h1 {
                font-size: 1.5rem;
            }
            .cta-card h2 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 25px;
            }
        }

        @media (max-width: 520px) {
            .article-main {
                padding: 20px;
                border-radius: var(--radius-md);
            }
            .article-header h1 {
                font-size: 1.3rem;
            }
            .article-meta {
                font-size: 0.8rem;
                gap: 10px;
            }
            .cta-card {
                padding: 30px 20px;
            }
            .cta-btn-group {
                flex-direction: column;
                align-items: center;
            }
            .btn-neon,
            .btn-outline-neon {
                width: 100%;
                text-align: center;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0F0C20;
            --bg-secondary: #0B1A30;
            --bg-card: rgba(15, 12, 32, 0.85);
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --accent-pink: #FF007F;
            --text-primary: #FFFFFF;
            --text-secondary: #A6ACAF;
            --text-muted: #6B7280;
            --border-neon: 1px solid rgba(0, 240, 255, 0.3);
            --border-lime: 1px solid rgba(204, 255, 0, 0.4);
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.25);
            --shadow-lime: 0 0 20px rgba(204, 255, 0, 0.2);
            --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        body {
            font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            background: linear-gradient(160deg, var(--bg-primary) 0%, var(--bg-secondary) 60%, #0A1525 100%);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        a {
            text-decoration: none;
            color: inherit;
        }
        
        button {
            cursor: pointer;
            font-family: inherit;
        }
        
        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }
        
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            background: rgba(15, 12, 32, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.15);
            transition: var(--transition-smooth);
        }
        
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }
        
        .logo-text {
            font-size: 1.4rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }
        
        .nav-links {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
        }
        
        .nav-links a {
            color: var(--text-secondary);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 8px 4px;
            position: relative;
            transition: var(--transition-fast);
            white-space: nowrap;
        }
        
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-cyan);
            transition: var(--transition-fast);
            border-radius: 2px;
        }
        
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--text-primary);
        }
        
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }
        
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .btn-nav-login {
            color: var(--text-primary);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 10px 18px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition-fast);
            white-space: nowrap;
        }
        
        .btn-nav-login:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.15);
        }
        
        .btn-nav-signup {
            color: #0F0C20;
            background: var(--accent-lime);
            border: none;
            padding: 10px 22px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 0 12px rgba(204, 255, 0, 0.3);
        }
        
        .btn-nav-signup:hover {
            background: #E6FF33;
            box-shadow: 0 0 20px rgba(204, 255, 0, 0.5);
            transform: translateY(-1px);
        }
        
        .mobile-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 1.6rem;
            cursor: pointer;
        }
        
        .page-header-section {
            padding: 140px 0 60px;
            position: relative;
            overflow: hidden;
            background: linear-gradient(180deg, rgba(0, 240, 255, 0.07) 0%, transparent 50%);
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
        }
        
        .page-header-content {
            max-width: 800px;
            margin: 0 auto;
            text-align: left;
        }
        
        .page-badge {
            display: inline-block;
            background: rgba(204, 255, 0, 0.1);
            border: 1px solid rgba(204, 255, 0, 0.3);
            color: var(--accent-lime);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
        }
        
        .page-header-content h1 {
            font-size: 2.6rem;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 18px;
            color: var(--text-primary);
            letter-spacing: -0.5px;
        }
        
        .page-header-content h1 .highlight {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .page-header-content .page-desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        
        .content-section {
            padding: 60px 0;
        }
        
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }
        
        .content-text h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
            line-height: 1.3;
        }
        
        .content-text p {
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.7;
            margin-bottom: 16px;
        }
        
        .content-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-neon);
        }
        
        .content-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        
        .method-steps {
            list-style: none;
            counter-reset: step;
            padding: 0;
            margin: 20px 0;
        }
        
        .method-steps li {
            counter-increment: step;
            position: relative;
            padding: 16px 16px 16px 60px;
            background: var(--bg-card);
            border: var(--border-neon);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            transition: var(--transition-smooth);
        }
        
        .method-steps li:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-neon);
            transform: translateX(4px);
        }
        
        .method-steps li::before {
            content: counter(step);
            position: absolute;
            left: 16px;
            top: 16px;
            width: 32px;
            height: 32px;
            background: var(--accent-cyan);
            color: #0F0C20;
            font-weight: 800;
            font-size: 0.9rem;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .method-steps li h4 {
            color: var(--text-primary);
            font-weight: 700;
            margin-bottom: 6px;
            font-size: 1rem;
        }
        
        .method-steps li p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
        }
        
        .data-board {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin: 40px 0;
        }
        
        .data-card {
            background: var(--bg-card);
            border: var(--border-neon);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            transition: var(--transition-smooth);
        }
        
        .data-card:hover {
            border-color: var(--accent-lime);
            box-shadow: var(--shadow-lime);
            transform: translateY(-4px);
        }
        
        .data-number {
            font-size: 2rem;
            font-weight: 900;
            color: var(--accent-cyan);
            margin-bottom: 8px;
        }
        
        .data-label {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }
        
        .method-comparison {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 30px 0;
        }
        
        .comparison-card {
            background: var(--bg-card);
            border: var(--border-neon);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: var(--transition-smooth);
        }
        
        .comparison-card:hover {
            border-color: var(--accent-lime);
            box-shadow: var(--shadow-lime);
        }
        
        .comparison-card h4 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--accent-lime);
        }
        
        .comparison-card ul {
            list-style: none;
            padding: 0;
        }
        
        .comparison-card ul li {
            color: var(--text-secondary);
            padding: 6px 0;
            font-size: 0.9rem;
            padding-left: 20px;
            position: relative;
        }
        
        .comparison-card ul li::before {
            content: '▸';
            position: absolute;
            left: 0;
            top: 6px;
            color: var(--accent-cyan);
        }
        
        .faq-section {
            padding: 60px 0;
            background: rgba(0, 240, 255, 0.02);
        }
        
        .faq-item {
            background: var(--bg-card);
            border: var(--border-neon);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition-smooth);
        }
        
        .faq-item:hover {
            border-color: var(--accent-cyan);
        }
        
        .faq-question {
            padding: 20px 24px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition-fast);
        }
        
        .faq-question:hover {
            color: var(--accent-cyan);
        }
        
        .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        
        .cta-banner {
            padding: 70px 0;
            text-align: center;
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.08) 0%, rgba(204, 255, 0, 0.05) 100%);
            border-radius: var(--radius-xl);
            margin: 40px 0;
        }
        
        .cta-banner h3 {
            font-size: 2rem;
            font-weight: 900;
            margin-bottom: 14px;
            color: var(--text-primary);
        }
        
        .cta-banner p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto 28px;
        }
        
        .btn-cta-large {
            display: inline-block;
            background: var(--accent-lime);
            color: #0F0C20;
            padding: 16px 44px;
            border-radius: 40px;
            font-weight: 800;
            font-size: 1.05rem;
            transition: var(--transition-smooth);
            box-shadow: 0 0 20px rgba(204, 255, 0, 0.35);
            letter-spacing: 0.3px;
        }
        
        .btn-cta-large:hover {
            background: #E6FF33;
            box-shadow: 0 0 32px rgba(204, 255, 0, 0.55);
            transform: translateY(-2px);
            color: #0F0C20;
        }
        
        .btn-cta-large i {
            margin-left: 8px;
        }
        
        .site-footer {
            border-top: 1px solid rgba(0, 240, 255, 0.15);
            padding: 50px 0 30px;
            background: rgba(10, 20, 37, 0.5);
            margin-top: 40px;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 30px;
        }
        
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text-primary);
        }
        
        .footer-col p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
        }
        
        .footer-col a {
            display: block;
            color: var(--text-secondary);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: var(--transition-fast);
        }
        
        .footer-col a:hover {
            color: var(--accent-cyan);
        }
        
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        
        .fab-support {
            position: fixed;
            left: 20px;
            bottom: 80px;
            z-index: 90;
            width: 56px;
            height: 56px;
            background: rgba(15, 12, 32, 0.8);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            border-image: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime)) 1;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
            transition: var(--transition-smooth);
            animation: floatFAB 3s ease-in-out infinite;
        }
        
        .fab-support:hover {
            box-shadow: 0 0 35px rgba(204, 255, 0, 0.6);
            transform: scale(1.1);
            animation: none;
        }
        
        .fab-support i {
            color: var(--accent-cyan);
            font-size: 1.4rem;
            transition: var(--transition-fast);
        }
        
        .fab-support:hover i {
            color: var(--accent-lime);
        }
        
        @keyframes floatFAB {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
        
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .content-image {
                order: -1;
            }
            .data-board {
                grid-template-columns: repeat(2, 1fr);
            }
            .method-comparison {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: rgba(15, 12, 32, 0.98);
                flex-direction: column;
                padding: 20px;
                gap: 12px;
                border-bottom: 1px solid rgba(0, 240, 255, 0.2);
            }
            .nav-links.active {
                display: flex;
            }
            .nav-actions {
                gap: 8px;
            }
            .btn-nav-login {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            .btn-nav-signup {
                padding: 8px 16px;
                font-size: 0.8rem;
            }
            .page-header-content h1 {
                font-size: 1.8rem;
            }
            .data-board {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .data-number {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .cta-banner h3 {
                font-size: 1.5rem;
            }
            .btn-cta-large {
                padding: 14px 30px;
                font-size: 0.9rem;
            }
        }
        
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .data-board {
                grid-template-columns: 1fr;
            }
            .nav-actions .btn-nav-login,
            .nav-actions .btn-nav-signup {
                padding: 8px 12px;
                font-size: 0.75rem;
            }
            .logo-text {
                font-size: 1.1rem;
            }
            .btn-nav-login,
            .btn-nav-signup {
                display: block;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0F0C20;
            --bg-secondary: #0B1A30;
            --bg-card: rgba(15, 12, 32, 0.85);
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --accent-pink: #FF007F;
            --text-primary: #FFFFFF;
            --text-secondary: #A6ACAF;
            --text-muted: #6B7280;
            --border-neon: 1px solid rgba(0, 240, 255, 0.3);
            --border-lime: 1px solid rgba(204, 255, 0, 0.4);
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.25);
            --shadow-lime: 0 0 20px rgba(204, 255, 0, 0.2);
            --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            margin: 0;
            padding: 0;
            font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            background: linear-gradient(160deg, var(--bg-primary) 0%, var(--bg-secondary) 60%, #0A1525 100%);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            background: rgba(15, 12, 32, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.15);
            transition: var(--transition-smooth);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }

        .logo-text {
            font-size: 1.4rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            text-decoration: none;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            padding: 8px 4px;
            position: relative;
            transition: var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-cyan);
            transition: var(--transition-fast);
            border-radius: 2px;
        }

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

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

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

        .btn-nav-login {
            color: var(--text-primary);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 10px 18px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition-fast);
            white-space: nowrap;
        }

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

        .btn-nav-signup {
            color: #0F0C20;
            background: var(--accent-lime);
            border: none;
            padding: 10px 22px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 0 12px rgba(204, 255, 0, 0.3);
        }

        .btn-nav-signup:hover {
            background: #E6FF33;
            box-shadow: 0 0 20px rgba(204, 255, 0, 0.5);
            transform: translateY(-1px);
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 1.6rem;
            cursor: pointer;
        }

        /* Hero */
        .hero-section {
            padding: 150px 0 80px;
            position: relative;
            overflow: hidden;
            background: linear-gradient(180deg, rgba(0, 240, 255, 0.05) 0%, transparent 40%);
        }

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

        .hero-content h1 {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.15;
            margin-bottom: 20px;
            color: var(--text-primary);
            letter-spacing: -0.8px;
        }

        .hero-content .highlight {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 30px;
        }

        .hero-cta-group {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
            align-items: center;
        }

        .btn-cta-primary {
            background: var(--accent-cyan);
            color: #0A0F1F;
            border: none;
            padding: 14px 32px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition-smooth);
            box-shadow: var(--shadow-neon);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-cta-primary:hover {
            background: #33F5FF;
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.5);
            transform: translateY(-2px);
        }

        .btn-cta-secondary {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 14px 32px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition-smooth);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-cta-secondary:hover {
            border-color: var(--accent-lime);
            color: var(--accent-lime);
            box-shadow: var(--shadow-lime);
        }

        .hero-visual {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
            border: 1px solid rgba(0, 240, 255, 0.2);
        }

        .hero-visual img {
            width: 100%;
            height: auto;
            display: block;
        }

        .hero-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(15, 12, 32, 0.3) 0%, transparent 50%);
            pointer-events: none;
        }

        /* Common Section Styles */
        .section-block {
            padding: 70px 0;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 15px;
            color: var(--text-primary);
            letter-spacing: -0.5px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-bottom: 45px;
            line-height: 1.6;
        }

        .highlight-text {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* Steps Timeline */
        .steps-flow {
            display: flex;
            flex-direction: column;
            gap: 30px;
            max-width: 800px;
            margin: 0 auto;
        }

        .step-item {
            display: flex;
            gap: 25px;
            align-items: flex-start;
            background: rgba(15, 12, 32, 0.6);
            border: var(--border-neon);
            border-radius: var(--radius-lg);
            padding: 30px;
            transition: var(--transition-smooth);
            position: relative;
        }

        .step-item:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-neon);
            transform: translateX(5px);
        }

        .step-number {
            flex-shrink: 0;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-cyan), #0099aa);
            color: var(--bg-primary);
            font-weight: 900;
            font-size: 1.4rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
        }

        .step-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .step-body p {
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        /* Feature Cards Grid */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 25px;
        }

        .feature-card {
            background: rgba(15, 12, 32, 0.7);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            padding: 30px 25px;
            transition: var(--transition-smooth);
            backdrop-filter: blur(10px);
        }

        .feature-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 8px 25px rgba(0, 240, 255, 0.1);
            transform: translateY(-5px);
        }

        .feature-icon {
            font-size: 2.2rem;
            color: var(--accent-cyan);
            margin-bottom: 18px;
        }

        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

        .feature-card p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
            margin: 0;
        }

        /* FAQ */
        .faq-list {
            max-width: 850px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .faq-item {
            background: rgba(15, 12, 32, 0.7);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition-smooth);
        }

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

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

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            padding: 0 28px;
        }

        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 0 28px 22px;
        }

        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.4);
        }

        /* CTA Banner */
        .cta-banner {
            background: linear-gradient(135deg, rgba(204, 255, 0, 0.1), rgba(0, 240, 255, 0.05));
            border: var(--border-neon);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: left;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 25px;
            backdrop-filter: blur(10px);
        }

        .cta-banner h3 {
            font-size: 1.6rem;
            font-weight: 800;
            margin: 0 0 8px;
            color: var(--text-primary);
        }

        .cta-banner p {
            color: var(--text-secondary);
            margin: 0;
            font-size: 0.95rem;
        }

        /* Footer */
        .site-footer {
            background: rgba(8, 6, 18, 0.9);
            border-top: 1px solid rgba(0, 240, 255, 0.2);
            padding: 50px 0 25px;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 35px;
            margin-bottom: 35px;
        }

        .footer-col h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 15px;
            color: var(--accent-cyan);
        }

        .footer-col p,
        .footer-col a {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            display: block;
            margin-bottom: 8px;
            transition: var(--transition-fast);
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            color: var(--text-muted);
            font-size: 0.8rem;
        }

        /* FAB */
        .fab-floating {
            position: fixed;
            left: 20px;
            bottom: 100px;
            z-index: 90;
            width: 55px;
            height: 55px;
            border-radius: 50%;
            background: rgba(10, 12, 26, 0.8);
            backdrop-filter: blur(15px);
            border: 2px solid var(--accent-cyan);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.4rem;
            cursor: pointer;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
            transition: var(--transition-smooth);
            animation: neonPulse 2s infinite;
        }

        .fab-floating:hover {
            background: rgba(0, 240, 255, 0.2);
            box-shadow: 0 0 35px rgba(0, 240, 255, 0.5);
            transform: scale(1.08);
        }

        @keyframes neonPulse {
            0%,
            100% {
                box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
            }
            50% {
                box-shadow: 0 0 30px rgba(0, 240, 255, 0.6);
            }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 35px;
                text-align: center;
            }

            .hero-content h1 {
                font-size: 2.5rem;
            }

            .hero-cta-group {
                justify-content: center;
            }

            .cta-banner {
                flex-direction: column;
                text-align: center;
            }

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

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: rgba(15, 12, 32, 0.98);
                backdrop-filter: blur(25px);
                padding: 20px;
                gap: 16px;
                border-bottom: 1px solid rgba(0, 240, 255, 0.2);
            }

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

            .mobile-toggle {
                display: block;
            }

            .nav-actions {
                gap: 6px;
            }

            .btn-nav-login,
            .btn-nav-signup {
                padding: 8px 14px;
                font-size: 0.8rem;
            }

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

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

            .step-item {
                flex-direction: column;
                text-align: center;
                align-items: center;
            }

            .fab-floating {
                width: 45px;
                height: 45px;
                left: 12px;
                bottom: 80px;
                font-size: 1.2rem;
            }
        }

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

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

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

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

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

            .cta-banner {
                padding: 30px 20px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0F0C20;
            --bg-secondary: #0B1A30;
            --bg-card: rgba(15, 12, 32, 0.85);
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --accent-pink: #FF007F;
            --text-primary: #FFFFFF;
            --text-secondary: #A6ACAF;
            --text-muted: #6B7280;
            --border-neon: 1px solid rgba(0, 240, 255, 0.3);
            --border-lime: 1px solid rgba(204, 255, 0, 0.4);
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.25);
            --shadow-lime: 0 0 20px rgba(204, 255, 0, 0.2);
            --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        
        body {
            margin: 0;
            padding: 0;
            font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            background: linear-gradient(160deg, var(--bg-primary) 0%, var(--bg-secondary) 60%, #0A1525 100%);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        a {
            text-decoration: none;
            color: inherit;
        }
        
        button {
            font-family: inherit;
            cursor: pointer;
            outline: none;
            border: none;
        }
        
        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }
        
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            background: rgba(15, 12, 32, 0.94);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.15);
            transition: var(--transition-smooth);
        }
        
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        
        .logo-text {
            font-size: 1.45rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            text-decoration: none;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
            transition: var(--transition-fast);
        }
        
        .logo-text:hover {
            filter: brightness(1.2);
        }
        
        .nav-links {
            display: flex;
            align-items: center;
            gap: 20px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        
        .nav-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.9rem;
            font-weight: 500;
            padding: 8px 6px;
            position: relative;
            transition: var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.2px;
        }
        
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-cyan);
            transition: var(--transition-fast);
            border-radius: 2px;
        }
        
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--text-primary);
        }
        
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }
        
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .btn-nav-login {
            color: var(--text-primary);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 9px 16px;
            border-radius: 28px;
            font-size: 0.82rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        
        .btn-nav-login:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.2);
        }
        
        .btn-nav-signup {
            color: #0F0C20;
            background: var(--accent-lime);
            border: none;
            padding: 9px 20px;
            border-radius: 28px;
            font-size: 0.82rem;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.3px;
            box-shadow: 0 0 14px rgba(204, 255, 0, 0.35);
        }
        
        .btn-nav-signup:hover {
            background: #E6FF33;
            box-shadow: 0 0 24px rgba(204, 255, 0, 0.55);
            transform: translateY(-2px);
        }
        
        .mobile-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 1.7rem;
            cursor: pointer;
            padding: 4px;
            transition: var(--transition-fast);
        }
        
        .mobile-toggle:hover {
            color: var(--accent-cyan);
        }
        
        .page-banner {
            padding: 140px 0 60px;
            position: relative;
            overflow: hidden;
            background: linear-gradient(180deg, rgba(0, 240, 255, 0.06) 0%, transparent 50%);
            text-align: left;
        }
        
        .banner-content h1 {
            font-size: 2.6rem;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 16px;
            color: var(--text-primary);
            letter-spacing: -0.6px;
        }
        
        .banner-content .accent-text {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .banner-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 650px;
        }
        
        .promo-progress-section {
            padding: 20px 0 70px;
        }
        
        .progress-panel {
            background: var(--bg-card);
            border: var(--border-neon);
            border-radius: var(--radius-xl);
            padding: 40px 36px;
            box-shadow: var(--shadow-neon);
            backdrop-filter: blur(10px);
        }
        
        .progress-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 30px;
        }
        
        .progress-title {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
        }
        
        .progress-badge {
            background: rgba(204, 255, 0, 0.15);
            color: var(--accent-lime);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 0.3px;
            border: 1px solid rgba(204, 255, 0, 0.3);
        }
        
        .progress-circle-wrapper {
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 30px 0;
        }
        
        .progress-circle {
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: conic-gradient(var(--accent-lime) 0% 72%, rgba(255,255,255,0.08) 72% 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 30px rgba(204, 255, 0, 0.25);
        }
        
        .progress-circle-inner {
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: var(--bg-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
        }
        
        .progress-percent {
            font-size: 2rem;
            font-weight: 900;
            color: var(--accent-lime);
        }
        
        .progress-label {
            font-size: 0.75rem;
            color: var(--text-secondary);
        }
        
        .tier-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            margin: 30px 0;
        }
        
        .tier-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: 20px;
            text-align: center;
            transition: var(--transition-smooth);
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        
        .tier-card.featured {
            border-color: var(--accent-lime);
            box-shadow: 0 0 18px rgba(204, 255, 0, 0.2);
            background: rgba(204, 255, 0, 0.04);
        }
        
        .tier-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-neon);
            transform: translateY(-3px);
        }
        
        .tier-amount {
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--accent-lime);
            margin-bottom: 6px;
        }
        
        .tier-name {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        
        .tier-note {
            font-size: 0.78rem;
            color: var(--text-muted);
        }
        
        .btn-support {
            display: inline-block;
            background: var(--accent-lime);
            color: #0F0C20;
            padding: 14px 36px;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 700;
            text-align: center;
            transition: var(--transition-fast);
            box-shadow: 0 0 18px rgba(204, 255, 0, 0.35);
            letter-spacing: 0.3px;
            cursor: pointer;
        }
        
        .btn-support:hover {
            background: #E6FF33;
            box-shadow: 0 0 28px rgba(204, 255, 0, 0.55);
            transform: translateY(-2px);
        }
        
        .offers-section {
            padding: 60px 0;
        }
        
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--text-primary);
            letter-spacing: -0.4px;
        }
        
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 40px;
            max-width: 600px;
        }
        
        .offer-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        
        .offer-card {
            background: var(--bg-card);
            border: var(--border-neon);
            border-radius: var(--radius-lg);
            padding: 30px 28px;
            transition: var(--transition-smooth);
            backdrop-filter: blur(8px);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        
        .offer-card:hover {
            border-color: var(--accent-lime);
            box-shadow: var(--shadow-lime);
            transform: translateY(-4px);
        }
        
        .offer-tag {
            display: inline-block;
            background: rgba(255, 0, 127, 0.15);
            color: var(--accent-pink);
            padding: 5px 14px;
            border-radius: 16px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.4px;
            width: fit-content;
        }
        
        .offer-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
        }
        
        .offer-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        
        .offer-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
        }
        
        .offer-value {
            font-size: 1.3rem;
            font-weight: 900;
            color: var(--accent-cyan);
        }
        
        .offer-link {
            color: var(--accent-lime);
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition-fast);
            cursor: pointer;
        }
        
        .offer-link:hover {
            color: #E6FF33;
            text-decoration: underline;
        }
        
        .process-section {
            padding: 60px 0;
            background: rgba(0, 240, 255, 0.03);
            border-top: 1px solid rgba(0, 240, 255, 0.1);
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
        }
        
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 30px;
        }
        
        .process-step {
            text-align: left;
            padding: 20px 16px;
            border-left: 2px solid rgba(0, 240, 255, 0.25);
            transition: var(--transition-fast);
        }
        
        .process-step:hover {
            border-left-color: var(--accent-lime);
        }
        
        .step-number {
            font-size: 2rem;
            font-weight: 900;
            color: var(--accent-cyan);
            opacity: 0.5;
        }
        
        .step-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 8px 0 6px;
        }
        
        .step-desc {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }
        
        .faq-section {
            padding: 70px 0;
        }
        
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-top: 30px;
        }
        
        .faq-item {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            transition: var(--transition-smooth);
            cursor: pointer;
        }
        
        .faq-item:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.12);
        }
        
        .faq-question {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .faq-question i {
            color: var(--accent-lime);
            font-size: 0.9rem;
        }
        
        .faq-answer {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            padding-left: 24px;
        }
        
        .cta-section {
            padding: 80px 0 60px;
            text-align: center;
        }
        
        .cta-box {
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.08), rgba(204, 255, 0, 0.06));
            border: var(--border-neon);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            max-width: 700px;
            margin: 0 auto;
            box-shadow: var(--shadow-neon);
        }
        
        .cta-title {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        
        .cta-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 28px;
            line-height: 1.6;
        }
        
        .btn-cta {
            display: inline-block;
            background: var(--accent-cyan);
            color: #0F0C20;
            padding: 15px 40px;
            border-radius: 32px;
            font-size: 1.05rem;
            font-weight: 700;
            transition: var(--transition-fast);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
            letter-spacing: 0.3px;
            cursor: pointer;
        }
        
        .btn-cta:hover {
            background: #33F5FF;
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.5);
            transform: translateY(-2px);
        }
        
        .site-footer {
            background: rgba(8, 5, 20, 0.8);
            border-top: 1px solid rgba(0, 240, 255, 0.12);
            padding: 50px 0 30px;
            margin-top: 20px;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 30px;
        }
        
        .footer-col h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        
        .footer-col p,
        .footer-col a {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: block;
            margin-bottom: 8px;
            transition: var(--transition-fast);
        }
        
        .footer-col a:hover {
            color: var(--accent-cyan);
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        
        .fab-left {
            position: fixed;
            left: 20px;
            bottom: 80px;
            z-index: 50;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(12px);
            border: 2px solid var(--accent-cyan);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.3rem;
            cursor: pointer;
            box-shadow: 0 0 18px rgba(0, 240, 255, 0.5);
            transition: var(--transition-smooth);
        }
        
        .fab-left:hover {
            background: rgba(0, 240, 255, 0.15);
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.7);
            transform: scale(1.1);
            border-color: var(--accent-lime);
            color: var(--accent-lime);
        }
        
        @media (max-width: 1024px) {
            .tier-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .offer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(15, 12, 32, 0.98);
                flex-direction: column;
                padding: 20px;
                gap: 14px;
                border-bottom: 1px solid rgba(0, 240, 255, 0.2);
            }
            .nav-links.open {
                display: flex;
            }
            .mobile-toggle {
                display: block;
            }
            .nav-actions {
                gap: 8px;
            }
            .btn-nav-login,
            .btn-nav-signup {
                padding: 7px 14px;
                font-size: 0.78rem;
            }
            .banner-content h1 {
                font-size: 2rem;
            }
            .tier-grid {
                grid-template-columns: 1fr;
            }
            .offer-grid {
                grid-template-columns: 1fr;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .cta-box {
                padding: 30px 20px;
            }
            .progress-panel {
                padding: 24px 18px;
            }
            .progress-circle {
                width: 120px;
                height: 120px;
            }
            .progress-circle-inner {
                width: 90px;
                height: 90px;
            }
            .progress-percent {
                font-size: 1.5rem;
            }
        }
        
        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .nav-wrapper {
                height: 64px;
            }
            .logo-text {
                font-size: 1.2rem;
            }
            .banner-content h1 {
                font-size: 1.6rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .btn-nav-login,
            .btn-nav-signup {
                padding: 6px 10px;
                font-size: 0.7rem;
            }
        }

/* roulang page: category4 */
:root {
            --bg-primary: #0F0C20;
            --bg-secondary: #0B1A30;
            --bg-card: rgba(15, 12, 32, 0.85);
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --accent-pink: #FF007F;
            --text-primary: #FFFFFF;
            --text-secondary: #A6ACAF;
            --text-muted: #6B7280;
            --border-neon: 1px solid rgba(0, 240, 255, 0.3);
            --border-lime: 1px solid rgba(204, 255, 0, 0.4);
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.25);
            --shadow-lime: 0 0 20px rgba(204, 255, 0, 0.2);
            --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            margin: 0;
            padding: 0;
            font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            background: linear-gradient(160deg, var(--bg-primary) 0%, var(--bg-secondary) 60%, #0A1525 100%);
            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: 1240px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            background: rgba(15, 12, 32, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.15);
            transition: var(--transition-smooth);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }

        .logo-text {
            font-size: 1.4rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            text-decoration: none;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            padding: 8px 4px;
            position: relative;
            transition: var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-cyan);
            transition: var(--transition-fast);
            border-radius: 2px;
        }

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

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

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

        .btn-nav-login {
            color: var(--text-primary);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 10px 18px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition-fast);
            white-space: nowrap;
        }

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

        .btn-nav-signup {
            color: #0F0C20;
            background: var(--accent-lime);
            border: none;
            padding: 10px 22px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 0 12px rgba(204, 255, 0, 0.3);
        }

        .btn-nav-signup:hover {
            background: #E6FF33;
            box-shadow: 0 0 20px rgba(204, 255, 0, 0.5);
            transform: translateY(-1px);
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 1.6rem;
            cursor: pointer;
        }

        /* Page Hero Section */
        .page-hero {
            padding: 140px 0 70px;
            background: linear-gradient(180deg, rgba(0, 240, 255, 0.05) 0%, transparent 50%);
            position: relative;
            overflow: hidden;
        }

        .page-hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .page-hero-content .category-badge {
            display: inline-block;
            background: rgba(204, 255, 0, 0.12);
            border: 1px solid var(--accent-lime);
            color: var(--accent-lime);
            font-size: 0.8rem;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 30px;
            letter-spacing: 0.5px;
            margin-bottom: 18px;
        }

        .page-hero-content h1 {
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 18px;
            color: var(--text-primary);
            letter-spacing: -0.5px;
        }

        .page-hero-content .highlight {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-hero-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 28px;
        }

        .hero-metrics {
            display: flex;
            gap: 30px;
            flex-wrap: wrap;
        }

        .metric-item {
            display: flex;
            flex-direction: column;
        }

        .metric-number {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--accent-lime);
            line-height: 1;
        }

        .metric-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .hero-image-wrapper {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 2px solid rgba(0, 240, 255, 0.25);
            box-shadow: var(--shadow-neon);
        }

        .hero-image-wrapper img {
            width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-lg);
        }

        .image-tag {
            position: absolute;
            top: 18px;
            right: 18px;
            background: var(--accent-pink);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 800;
            padding: 5px 14px;
            border-radius: 20px;
            letter-spacing: 0.8px;
            box-shadow: 0 0 10px rgba(255, 0, 127, 0.4);
        }

        /* Offer Stats Panel */
        .offer-stats-panel {
            padding: 60px 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
        }

        .stat-card {
            background: var(--bg-card);
            border: var(--border-neon);
            border-radius: var(--radius-lg);
            padding: 30px 22px;
            text-align: left;
            transition: var(--transition-smooth);
            position: relative;
            backdrop-filter: blur(12px);
        }

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

        .stat-icon {
            font-size: 2rem;
            color: var(--accent-cyan);
            margin-bottom: 14px;
        }

        .stat-value {
            font-size: 2rem;
            font-weight: 900;
            color: var(--text-primary);
            line-height: 1;
            margin-bottom: 6px;
        }

        .stat-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.4;
        }

        /* Promo Detail Section */
        .promo-detail-section {
            padding: 70px 0;
            background: rgba(0, 240, 255, 0.02);
        }

        .section-header {
            margin-bottom: 50px;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: -0.3px;
        }

        .section-header .subtitle {
            color: var(--text-secondary);
            font-size: 1rem;
        }

        .promo-cards-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .promo-card {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: var(--transition-smooth);
            position: relative;
            backdrop-filter: blur(10px);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .promo-card.featured {
            border-color: var(--accent-lime);
        }

        .promo-card:hover {
            border-color: rgba(0, 240, 255, 0.5);
            box-shadow: 0 8px 25px rgba(0, 240, 255, 0.1);
        }

        .promo-tag {
            display: inline-block;
            background: var(--accent-pink);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 800;
            padding: 5px 14px;
            border-radius: 20px;
            letter-spacing: 1px;
            align-self: flex-start;
        }

        .promo-tag.lime-tag {
            background: var(--accent-lime);
            color: #0F0C20;
        }

        .promo-title {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.3;
        }

        .promo-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .promo-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 14px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .promo-code {
            background: rgba(0, 240, 255, 0.1);
            border: 1px dashed var(--accent-cyan);
            padding: 6px 14px;
            border-radius: 20px;
            font-family: monospace;
            font-size: 0.85rem;
            color: var(--accent-cyan);
            font-weight: 700;
        }

        .promo-status {
            font-size: 0.8rem;
            color: var(--accent-lime);
            font-weight: 600;
        }

        /* How to Claim */
        .claim-steps {
            padding: 80px 0;
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
        }

        .step-card {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: left;
            transition: var(--transition-smooth);
            position: relative;
        }

        .step-number {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--accent-cyan);
            color: #0F0C20;
            font-weight: 900;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
        }

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

        .step-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* FAQ */
        .faq-section {
            padding: 70px 0;
            background: rgba(0, 240, 255, 0.02);
        }

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

        .faq-item {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            transition: var(--transition-fast);
            overflow: hidden;
        }

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

        .faq-question {
            padding: 20px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
        }

        .faq-answer {
            padding: 0 24px 20px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }

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

        .faq-item.open .faq-question i {
            transform: rotate(45deg);
        }

        .faq-question i {
            color: var(--accent-cyan);
            transition: transform 0.25s ease;
        }

        /* CTA */
        .cta-section {
            padding: 80px 0 90px;
            text-align: left;
            background: linear-gradient(0deg, rgba(0, 240, 255, 0.06) 0%, transparent 80%);
        }

        .cta-box {
            background: var(--bg-card);
            border: var(--border-lime);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 30px;
            backdrop-filter: blur(15px);
            box-shadow: var(--shadow-lime);
        }

        .cta-text h3 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .cta-text p {
            color: var(--text-secondary);
            font-size: 1rem;
            margin: 0;
        }

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

        .btn-primary-glow {
            background: var(--accent-lime);
            color: #0F0C20;
            border: none;
            padding: 14px 32px;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 800;
            cursor: pointer;
            transition: var(--transition-fast);
            box-shadow: 0 0 18px rgba(204, 255, 0, 0.4);
            text-decoration: none;
            display: inline-block;
        }

        .btn-primary-glow:hover {
            background: #E6FF33;
            box-shadow: 0 0 28px rgba(204, 255, 0, 0.6);
            transform: translateY(-2px);
        }

        .btn-outline-glow {
            background: transparent;
            color: var(--accent-cyan);
            border: 2px solid var(--accent-cyan);
            padding: 14px 32px;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition-fast);
            text-decoration: none;
            display: inline-block;
        }

        .btn-outline-glow:hover {
            background: rgba(0, 240, 255, 0.08);
            box-shadow: var(--shadow-neon);
        }

        /* Footer */
        .site-footer {
            background: rgba(10, 8, 20, 0.9);
            border-top: 1px solid rgba(0, 240, 255, 0.12);
            padding: 50px 0 25px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 35px;
        }

        .footer-col h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

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

        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: var(--text-secondary);
            text-decoration: none;
            margin-bottom: 8px;
            transition: var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* FAB */
        .floating-fab {
            position: fixed;
            left: 24px;
            bottom: 90px;
            z-index: 60;
            width: 52px;
            height: 52px;
            border-radius: 50px;
            background: rgba(15, 12, 32, 0.7);
            backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition-smooth);
            box-shadow: 0 0 18px rgba(0, 240, 255, 0.4);
            opacity: 0.7;
            animation: fabPulse 2.5s infinite;
        }

        .floating-fab::before {
            content: '';
            position: absolute;
            inset: -3px;
            border-radius: 50px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-pink));
            z-index: -1;
            opacity: 0.8;
        }

        .floating-fab i {
            color: #fff;
            font-size: 1.4rem;
        }

        .floating-fab:hover {
            opacity: 1;
            transform: scale(1.08);
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.7);
        }

        @keyframes fabPulse {
            0%, 100% { box-shadow: 0 0 15px rgba(0, 240, 255, 0.35); }
            50% { box-shadow: 0 0 28px rgba(0, 240, 255, 0.7); }
        }

        /* Mobile */
        @media (max-width: 1024px) {
            .page-hero-grid {
                grid-template-columns: 1fr;
                gap: 35px;
            }
            .hero-image-wrapper {
                max-width: 500px;
                margin: 0 auto;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: rgba(15, 12, 32, 0.98);
                backdrop-filter: blur(20px);
                padding: 20px;
                border-bottom: 1px solid rgba(0, 240, 255, 0.2);
                gap: 14px;
            }
            .nav-links.show {
                display: flex;
            }
            .mobile-toggle {
                display: block;
            }
            .nav-actions {
                margin-left: auto;
                margin-right: 14px;
            }
            .page-hero-content h1 {
                font-size: 2rem;
            }
            .promo-cards-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .cta-box {
                flex-direction: column;
                text-align: left;
                align-items: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 25px;
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .hero-metrics {
                gap: 16px;
            }
            .page-hero-content h1 {
                font-size: 1.6rem;
            }
            .cta-actions {
                flex-direction: column;
                width: 100%;
            }
            .btn-primary-glow,
            .btn-outline-glow {
                text-align: center;
                width: 100%;
            }
            .nav-actions .btn-nav-login,
            .nav-actions .btn-nav-signup {
                padding: 8px 12px;
                font-size: 0.75rem;
            }
        }