/* roulang page: index */
:root {
            --primary-bg: #08090F;
            --secondary-bg: #0D111E;
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #94A3B8;
            --border-dim: rgba(0, 240, 255, 0.2);
            --border-glow: rgba(0, 240, 255, 0.5);
            --shadow-glow: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-2xl: 96px;
            --font-sans: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
        }

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

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

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

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s ease;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            outline: none;
            transition: all 0.25s ease;
        }

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

        input {
            font-family: inherit;
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            background: rgba(13, 17, 30, 0.8);
            color: var(--text-primary);
            transition: border-color 0.25s ease;
        }

        input:focus {
            outline: none;
            border-color: var(--accent-cyan);
            box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.15);
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: var(--spacing-md);
            padding-right: var(--spacing-md);
        }

        /* Header & Navigation */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(8, 9, 15, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-dim);
            transition: background 0.3s ease;
        }

        .header.scrolled {
            background: rgba(8, 9, 15, 0.95);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
        }

        .nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            gap: var(--spacing-md);
        }

        .nav-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            white-space: nowrap;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-logo span {
            font-weight: 400;
            font-size: 0.85rem;
            -webkit-text-fill-color: var(--text-secondary);
            margin-left: 4px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }

        .nav-links a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 6px 0;
            transition: color 0.25s ease;
        }

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

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-cyan);
            box-shadow: var(--shadow-glow);
            transition: width 0.3s ease;
        }

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

        .nav-actions {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }

        .btn-login {
            background: transparent;
            color: var(--text-secondary);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 10px 20px;
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-sm);
            transition: all 0.25s ease;
        }

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

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-blue), #0066FF);
            color: #FFFFFF;
            font-weight: 700;
            font-size: 0.9rem;
            padding: 11px 24px;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 16px rgba(0, 82, 255, 0.4);
            transition: all 0.25s ease;
        }

        .btn-signup:hover {
            box-shadow: 0 6px 24px rgba(0, 82, 255, 0.7);
            transform: translateY(-2px);
        }

        .btn-signup:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(0, 82, 255, 0.4);
        }

        .mobile-menu-toggle {
            display: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.6rem;
            padding: 8px;
        }

        /* Hero Section */
        .hero {
            padding: 140px 0 80px;
            position: relative;
            overflow: hidden;
            background: radial-gradient(ellipse at 30% 50%, rgba(0, 82, 255, 0.15) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 30%, rgba(0, 240, 255, 0.08) 0%, transparent 50%),
                var(--primary-bg);
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 240, 255, 0.12);
            border: 1px solid var(--border-dim);
            border-radius: 50px;
            padding: 8px 18px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-cyan);
            width: fit-content;
        }

        .hero-badge i {
            font-size: 0.7rem;
            animation: pulse-dot 1.8s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.3;
            }
        }

        .hero-title {
            font-size: clamp(2.2rem, 4.5vw, 3.4rem);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -1px;
            color: var(--text-primary);
        }

        .hero-title em {
            font-style: normal;
            background: linear-gradient(135deg, var(--accent-cyan) 0%, #66B3FF 100%);
            -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;
            max-width: 540px;
        }

        .hero-cta-row {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
            align-items: center;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent-blue), #0066FF);
            color: #FFFFFF;
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 32px;
            border-radius: var(--radius-md);
            box-shadow: 0 4px 20px rgba(0, 82, 255, 0.5);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: all 0.3s ease;
        }

        .btn-primary:hover {
            box-shadow: 0 8px 32px rgba(0, 82, 255, 0.8);
            transform: translateY(-3px);
        }

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

        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1rem;
            padding: 14px 28px;
            border: 2px solid var(--border-dim);
            border-radius: var(--radius-md);
            transition: all 0.3s ease;
        }

        .btn-outline:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            box-shadow: var(--shadow-glow);
        }

        .hero-kpis {
            display: flex;
            gap: 32px;
            margin-top: 8px;
            flex-wrap: wrap;
        }

        .hero-kpi {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-kpi strong {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-cyan);
            line-height: 1;
        }

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

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

        .hero-image-wrapper {
            position: relative;
            width: 100%;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: 0 0 60px rgba(0, 240, 255, 0.2), var(--shadow-card);
            transform: perspective(800px) rotateY(-5deg);
            transition: transform 0.4s ease;
        }

        .hero-image-wrapper:hover {
            transform: perspective(800px) rotateY(0deg);
        }

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

        .hero-image-wrapper::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-xl);
            pointer-events: none;
        }

        .hero-float-card {
            position: absolute;
            bottom: -20px;
            right: -30px;
            background: rgba(13, 17, 30, 0.9);
            backdrop-filter: blur(16px);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            box-shadow: var(--shadow-glow);
            display: flex;
            align-items: center;
            gap: 12px;
            z-index: 2;
            animation: float-card 3s ease-in-out infinite;
        }

        @keyframes float-card {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-12px);
            }
        }

        .hero-float-card i {
            font-size: 2rem;
            color: var(--accent-cyan);
        }

        .hero-float-card div strong {
            display: block;
            font-size: 1.2rem;
            color: #FFF;
            line-height: 1.2;
        }

        .hero-float-card div span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Sections Common */
        .section {
            padding: var(--spacing-2xl) 0;
        }

        .section-dark {
            background: var(--secondary-bg);
            border-top: 1px solid var(--border-dim);
            border-bottom: 1px solid var(--border-dim);
        }

        .section-header {
            margin-bottom: var(--spacing-xl);
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .section-label {
            font-size: 0.9rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--accent-cyan);
        }

        .section-title {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.2;
            color: var(--text-primary);
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 650px;
            line-height: 1.65;
        }

        /* Directory Grid */
        .directory-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }

        .directory-card {
            background: var(--secondary-bg);
            border: 1px solid transparent;
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: left;
            transition: all 0.35s ease;
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .directory-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue));
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.35s ease;
        }

        .directory-card:hover {
            border-color: var(--border-dim);
            box-shadow: var(--shadow-card);
            transform: translateY(-6px);
        }

        .directory-card:hover::before {
            transform: scaleX(1);
        }

        .directory-card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: rgba(0, 240, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-cyan);
            margin-bottom: 4px;
        }

        .directory-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        .directory-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.55;
        }

        .directory-card .card-link {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--accent-cyan);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: auto;
            transition: gap 0.3s ease;
        }

        .directory-card .card-link:hover {
            gap: 12px;
        }

        /* Value Points */
        .value-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }

        .value-item {
            display: flex;
            gap: 18px;
            align-items: flex-start;
        }

        .value-icon {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: rgba(0, 240, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-cyan);
            border: 1px solid var(--border-dim);
        }

        .value-text h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .value-text p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }

        .step-card {
            background: var(--secondary-bg);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            position: relative;
            transition: all 0.35s ease;
        }

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

        .step-number {
            font-size: 3.5rem;
            font-weight: 800;
            color: rgba(0, 240, 255, 0.12);
            position: absolute;
            top: 16px;
            right: 24px;
            line-height: 1;
        }

        .step-card h4 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

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

        /* News Section */
        .news-layout {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 40px;
            align-items: start;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-item {
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-dim);
            transition: all 0.3s ease;
            align-items: center;
        }

        .news-item:hover {
            border-bottom-color: var(--accent-cyan);
        }

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

        .news-info h5 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
            transition: color 0.25s ease;
        }

        .news-item:hover .news-info h5 {
            color: var(--accent-cyan);
        }

        .news-meta {
            display: flex;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .news-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .news-highlight {
            background: var(--secondary-bg);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-lg);
            padding: 28px;
            position: sticky;
            top: 100px;
        }

        .news-highlight h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--accent-cyan);
        }

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

        .highlight-list li {
            font-size: 0.92rem;
            color: var(--text-secondary);
            padding-left: 20px;
            position: relative;
            line-height: 1.5;
        }

        .highlight-list li::before {
            content: '▹';
            position: absolute;
            left: 0;
            color: var(--accent-cyan);
            font-weight: 700;
        }

        /* Assurance Bar */
        .assurance-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }

        .assurance-card {
            text-align: left;
            padding: 28px 24px;
            background: rgba(13, 17, 30, 0.6);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-md);
            display: flex;
            flex-direction: column;
            gap: 10px;
            transition: all 0.3s ease;
        }

        .assurance-card:hover {
            border-color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.03);
        }

        .assurance-card i {
            font-size: 1.8rem;
            color: var(--accent-cyan);
        }

        .assurance-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        .assurance-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* Insights */
        .insights-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }

        .insight-card {
            background: var(--secondary-bg);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: all 0.35s ease;
        }

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

        .insight-card .quote-icon {
            font-size: 2rem;
            color: var(--accent-cyan);
            opacity: 0.5;
            margin-bottom: 12px;
        }

        .insight-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.65;
            font-style: italic;
            margin-bottom: 16px;
        }

        .insight-card .insight-author {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--accent-cyan);
        }

        /* CTA Download */
        .cta-section {
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.15) 0%, rgba(0, 240, 255, 0.08) 100%);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-xl);
            padding: 56px 48px;
            display: flex;
            gap: 48px;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

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

        .cta-content p {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 500px;
            line-height: 1.6;
        }

        .cta-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
        }

        .cta-form input {
            min-width: 280px;
        }

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

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

        .footer-brand h3 {
            font-size: 1.5rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            max-width: 320px;
        }

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

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

        .footer-col ul li a {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: color 0.25s ease;
        }

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

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

        .footer-bottom p {
            margin-bottom: 4px;
        }

        /* FAB */
        .fab {
            position: fixed;
            left: 20px;
            bottom: 100px;
            z-index: 999;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(8, 9, 15, 0.7);
            backdrop-filter: blur(12px);
            border: 2px solid transparent;
            border-image: linear-gradient(135deg, #00F0FF, #0052FF) 1;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-cyan);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.35);
            transition: all 0.35s ease;
            opacity: 0.65;
            animation: fab-breath 3s ease-in-out infinite;
        }

        @keyframes fab-breath {
            0%,
            100% {
                box-shadow: 0 0 20px rgba(0, 240, 255, 0.35);
            }
            50% {
                box-shadow: 0 0 35px rgba(0, 240, 255, 0.65);
            }
        }

        .fab:hover {
            opacity: 1;
            transform: scale(1.12);
            box-shadow: 0 0 40px rgba(0, 240, 255, 0.75);
        }

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

        .fab .notification-dot {
            position: absolute;
            top: 6px;
            right: 6px;
            width: 10px;
            height: 10px;
            background: #FF0055;
            border-radius: 50%;
            animation: blink-dot 1.4s infinite;
        }

        @keyframes blink-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.2;
            }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-visual {
                order: -1;
            }
            .hero-image-wrapper {
                transform: none;
                max-width: 500px;
                margin: 0 auto;
            }
            .hero-float-card {
                right: 0;
                bottom: -16px;
            }
            .directory-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .value-grid,
            .steps-grid,
            .insights-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .news-highlight {
                position: static;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .assurance-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-section {
                flex-direction: column;
                text-align: center;
                align-items: center;
            }
            .cta-content p {
                max-width: 100%;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: rgba(8, 9, 15, 0.98);
                flex-direction: column;
                padding: 24px;
                gap: 18px;
                border-bottom: 1px solid var(--border-dim);
            }
            .nav-links.open {
                display: flex;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-actions {
                gap: 8px;
            }
            .btn-login,
            .btn-signup {
                padding: 8px 16px;
                font-size: 0.8rem;
            }
            .directory-grid {
                grid-template-columns: 1fr;
            }
            .value-grid,
            .steps-grid,
            .insights-grid {
                grid-template-columns: 1fr;
            }
            .assurance-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-kpis {
                gap: 20px;
            }
            .section {
                padding: 60px 0;
            }
            .cta-section {
                padding: 36px 24px;
            }
            .hero {
                padding: 100px 0 40px;
            }
        }

        @media (max-width: 520px) {
            .hero-cta-row {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-primary,
            .btn-outline {
                text-align: center;
                justify-content: center;
            }
            .hero-float-card {
                display: none;
            }
            .cta-form input {
                min-width: 100%;
            }
            .cta-form {
                flex-direction: column;
                width: 100%;
            }
        }

/* roulang page: article */
:root {
            --primary-bg: #08090F;
            --secondary-bg: #0D111E;
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #94A3B8;
            --border-dim: rgba(0, 240, 255, 0.2);
            --border-glow: rgba(0, 240, 255, 0.5);
            --shadow-glow: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-2xl: 96px;
            --font-sans: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
            --article-max-width: 820px;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-sans);
            background-color: var(--primary-bg);
            color: var(--text-primary);
            line-height: 1.65;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: 70px;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { text-decoration: none; color: inherit; transition: color 0.25s ease; }
        button { font-family: inherit; cursor: pointer; border: none; outline: none; transition: all 0.25s ease; }
        button:focus-visible, a:focus-visible { outline: 2px solid var(--accent-cyan); outline-offset: 3px; border-radius: var(--radius-sm); }
        input, textarea { font-family: inherit; border: 1px solid var(--border-dim); border-radius: var(--radius-sm); padding: 12px 16px; background: rgba(13, 17, 30, 0.8); color: var(--text-primary); transition: border-color 0.25s ease; }
        input:focus, textarea:focus { outline: none; border-color: var(--accent-cyan); box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.15); }
        .container { max-width: 1280px; margin: 0 auto; padding-left: var(--spacing-md); padding-right: var(--spacing-md); }
        .container-narrow { max-width: var(--article-max-width); margin: 0 auto; padding-left: var(--spacing-md); padding-right: var(--spacing-md); }
        /* Header */
        .header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            background: rgba(8, 9, 15, 0.85); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-dim); transition: background 0.3s ease;
        }
        .header.scrolled { background: rgba(8, 9, 15, 0.95); box-shadow: 0 4px 24px rgba(0,0,0,0.5); }
        .nav { display: flex; align-items: center; justify-content: space-between; height: 70px; gap: var(--spacing-md); }
        .nav-logo {
            font-size: 1.35rem; font-weight: 800; color: var(--text-primary); letter-spacing: -0.5px; white-space: nowrap;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
        }
        .nav-logo span { font-weight: 400; font-size: 0.8rem; -webkit-text-fill-color: var(--text-secondary); margin-left: 4px; }
        .nav-links { display: flex; align-items: center; gap: 24px; list-style: none; }
        .nav-links a { font-size: 0.9rem; font-weight: 500; color: var(--text-secondary); position: relative; padding: 6px 0; transition: color 0.25s ease; white-space: nowrap; }
        .nav-links a:hover, .nav-links a.active { color: var(--accent-cyan); }
        .nav-links a::after { content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px; background: var(--accent-cyan); box-shadow: var(--shadow-glow); transition: width 0.3s ease; }
        .nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
        .nav-actions { display: flex; align-items: center; gap: var(--spacing-sm); }
        .btn-login { background: transparent; color: var(--text-secondary); font-weight: 600; font-size: 0.85rem; padding: 9px 18px; border: 1px solid var(--border-dim); border-radius: var(--radius-sm); transition: all 0.25s ease; white-space: nowrap; }
        .btn-login:hover { color: var(--accent-cyan); border-color: var(--accent-cyan); box-shadow: var(--shadow-glow); }
        .btn-signup { background: linear-gradient(135deg, var(--accent-blue), #0066FF); color: #FFF; font-weight: 700; font-size: 0.85rem; padding: 10px 22px; border-radius: var(--radius-sm); box-shadow: 0 4px 16px rgba(0,82,255,0.4); transition: all 0.25s ease; white-space: nowrap; }
        .btn-signup:hover { box-shadow: 0 6px 24px rgba(0,82,255,0.7); transform: translateY(-2px); }
        .btn-signup:active { transform: translateY(0); box-shadow: 0 2px 8px rgba(0,82,255,0.4); }
        .mobile-menu-toggle { display: none; background: transparent; color: var(--text-primary); font-size: 1.5rem; padding: 6px; }
        /* Article Layout */
        .article-header-section {
            background: linear-gradient(180deg, var(--secondary-bg) 0%, var(--primary-bg) 100%);
            padding: var(--spacing-xl) 0 var(--spacing-lg);
            border-bottom: 1px solid var(--border-dim);
            text-align: left;
        }
        .article-breadcrumb {
            font-size: 0.85rem; color: var(--text-muted); margin-bottom: var(--spacing-md); display: flex; flex-wrap: wrap; gap: 6px; align-items: center;
        }
        .article-breadcrumb a:hover { color: var(--accent-cyan); }
        .article-category-tag {
            display: inline-block; background: rgba(0,240,255,0.1); color: var(--accent-cyan); font-size: 0.8rem; font-weight: 600;
            padding: 4px 14px; border-radius: 999px; border: 1px solid var(--border-dim); margin-bottom: var(--spacing-sm);
        }
        .article-title { font-size: 2.6rem; font-weight: 800; line-height: 1.25; margin-bottom: var(--spacing-sm); color: var(--text-primary); letter-spacing: -0.5px; }
        .article-meta { display: flex; flex-wrap: wrap; gap: var(--spacing-sm); font-size: 0.85rem; color: var(--text-muted); margin-bottom: var(--spacing-md); }
        .article-meta i { margin-right: 4px; color: var(--accent-cyan); }
        .article-featured-image { border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 0; box-shadow: var(--shadow-card); border: 1px solid var(--border-dim); }
        .article-featured-image img { width: 100%; object-fit: cover; }
        .article-body { padding: var(--spacing-xl) 0; }
        .article-content-wrapper { max-width: var(--article-max-width); margin: 0 auto; padding-left: var(--spacing-md); padding-right: var(--spacing-md); }
        .article-content-cms {
            font-size: 1.05rem; line-height: 1.75; color: var(--text-secondary);
        }
        .article-content-cms h2 { font-size: 1.7rem; font-weight: 700; color: var(--text-primary); margin: var(--spacing-lg) 0 var(--spacing-sm); line-height: 1.3; }
        .article-content-cms h3 { font-size: 1.35rem; font-weight: 600; color: var(--text-primary); margin: var(--spacing-md) 0 var(--spacing-xs); line-height: 1.35; }
        .article-content-cms p { margin-bottom: var(--spacing-sm); }
        .article-content-cms ul, .article-content-cms ol { margin: var(--spacing-xs) 0 var(--spacing-sm) var(--spacing-md); }
        .article-content-cms li { margin-bottom: 6px; }
        .article-content-cms strong { color: var(--text-primary); font-weight: 700; }
        .article-content-cms a { color: var(--accent-cyan); text-decoration: underline; text-underline-offset: 3px; }
        .article-content-cms a:hover { color: var(--accent-blue); }
        .article-content-cms img { border-radius: var(--radius-md); margin: var(--spacing-md) auto; border: 1px solid var(--border-dim); }
        .article-content-cms blockquote {
            border-left: 4px solid var(--accent-cyan); padding: var(--spacing-sm) var(--spacing-md); margin: var(--spacing-md) 0;
            background: rgba(0,240,255,0.04); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; font-style: italic; color: var(--text-secondary);
        }
        /* Pull Quote */
        .pull-quote {
            margin: var(--spacing-lg) 0; padding: var(--spacing-lg) var(--spacing-md);
            background: rgba(0,240,255,0.05); border: 1px solid var(--border-dim); border-radius: var(--radius-lg);
            font-size: 1.25rem; font-weight: 600; color: var(--accent-cyan); text-align: left; line-height: 1.5; position: relative;
        }
        .pull-quote::before { content: '"'; font-size: 4rem; position: absolute; top: -10px; left: 16px; color: var(--accent-cyan); opacity: 0.3; line-height: 1; }
        .pull-quote p { margin: 0; padding-left: 40px; }
        /* Not Found */
        .not-found-section { text-align: center; padding: var(--spacing-2xl) var(--spacing-md); }
        .not-found-section h2 { font-size: 1.8rem; margin-bottom: var(--spacing-sm); }
        .not-found-section .btn-return { display: inline-block; margin-top: var(--spacing-md); padding: 12px 28px; background: linear-gradient(135deg, var(--accent-blue), #0066FF); border-radius: var(--radius-sm); font-weight: 700; color: #FFF; }
        /* FAB */
        .fab { position: fixed; left: 16px; bottom: 96px; z-index: 50; width: 52px; height: 52px; background: rgba(13,17,30,0.7); backdrop-filter: blur(12px); border: 2px solid transparent; border-image: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue)) 1; border-radius: 50px; display: flex; align-items: center; justify-content: center; color: var(--accent-cyan); font-size: 1.3rem; box-shadow: 0 0 15px rgba(0,240,255,0.4); transition: all 0.3s ease; cursor: pointer; }
        .fab:hover { transform: scale(1.12); box-shadow: 0 0 24px rgba(0,240,255,0.7); background: rgba(0,240,255,0.1); }
        /* CTA */
        .cta-section { background: linear-gradient(180deg, var(--secondary-bg), var(--primary-bg)); padding: var(--spacing-xl) 0; border-top: 1px solid var(--border-dim); text-align: left; }
        .cta-card { max-width: var(--article-max-width); margin: 0 auto; padding: var(--spacing-lg); background: rgba(0,82,255,0.06); border: 1px solid var(--border-dim); border-radius: var(--radius-lg); }
        .cta-card h3 { font-size: 1.5rem; margin-bottom: var(--spacing-sm); color: var(--text-primary); }
        .cta-card p { color: var(--text-secondary); margin-bottom: var(--spacing-md); }
        .btn-cta-primary { display: inline-block; padding: 14px 32px; background: linear-gradient(135deg, var(--accent-blue), #0066FF); border-radius: var(--radius-sm); font-weight: 700; font-size: 1rem; color: #FFF; box-shadow: 0 4px 18px rgba(0,82,255,0.5); transition: all 0.25s ease; }
        .btn-cta-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(0,82,255,0.8); }
        /* Footer */
        .footer { background: var(--secondary-bg); border-top: 1px solid var(--border-dim); padding: var(--spacing-xl) 0 var(--spacing-md); color: var(--text-secondary); }
        .footer-grid { display: grid; grid-template-columns: 1.8fr 1fr 1fr 1fr; gap: var(--spacing-lg); margin-bottom: var(--spacing-lg); }
        .footer-brand h3 { font-size: 1.2rem; font-weight: 800; margin-bottom: var(--spacing-xs); color: var(--text-primary); }
        .footer-brand p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }
        .footer-col h4 { font-size: 0.95rem; font-weight: 700; color: var(--text-primary); margin-bottom: var(--spacing-sm); }
        .footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
        .footer-col ul a { font-size: 0.85rem; color: var(--text-muted); transition: color 0.2s ease; }
        .footer-col ul a:hover { color: var(--accent-cyan); }
        .footer-bottom { text-align: center; padding-top: var(--spacing-md); border-top: 1px solid var(--border-dim); font-size: 0.85rem; color: var(--text-muted); }
        /* Responsive */
        @media (max-width: 1024px) {
            .nav-links { gap: 16px; }
            .nav-links a { font-size: 0.82rem; }
            .article-title { font-size: 2rem; }
        }
        @media (max-width: 768px) {
            .nav-links { display: none; position: absolute; top: 70px; left: 0; right: 0; background: rgba(8,9,15,0.98); flex-direction: column; padding: var(--spacing-md); gap: 12px; border-bottom: 1px solid var(--border-dim); backdrop-filter: blur(16px); }
            .nav-links.show { display: flex; }
            .mobile-menu-toggle { display: block; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--spacing-md); }
            .article-title { font-size: 1.7rem; }
            .container, .container-narrow { padding-left: var(--spacing-sm); padding-right: var(--spacing-sm); }
        }
        @media (max-width: 520px) {
            .nav-logo { font-size: 1.1rem; }
            .btn-login, .btn-signup { padding: 8px 14px; font-size: 0.78rem; }
            .footer-grid { grid-template-columns: 1fr; }
            .article-title { font-size: 1.4rem; }
            .pull-quote { font-size: 1rem; }
        }

/* roulang page: category1 */
:root {
            --primary-bg: #08090F;
            --secondary-bg: #0D111E;
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #94A3B8;
            --border-dim: rgba(0, 240, 255, 0.2);
            --border-glow: rgba(0, 240, 255, 0.5);
            --shadow-glow: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-2xl: 96px;
            --font-sans: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--primary-bg);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: 70px;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s ease;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            outline: none;
            transition: all 0.25s ease;
        }

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

        input {
            font-family: inherit;
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            background: rgba(13, 17, 30, 0.8);
            color: var(--text-primary);
            transition: border-color 0.25s ease;
        }

        input:focus {
            outline: none;
            border-color: var(--accent-cyan);
            box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.15);
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: var(--spacing-md);
            padding-right: var(--spacing-md);
        }

        /* Header & Navigation */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(8, 9, 15, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-dim);
            transition: background 0.3s ease;
        }

        .header.scrolled {
            background: rgba(8, 9, 15, 0.95);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
        }

        .nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            gap: var(--spacing-md);
        }

        .nav-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            white-space: nowrap;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-logo span {
            font-weight: 400;
            font-size: 0.85rem;
            -webkit-text-fill-color: var(--text-secondary);
            margin-left: 4px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }

        .nav-links a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 6px 0;
            transition: color 0.25s ease;
        }

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

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-cyan);
            box-shadow: var(--shadow-glow);
            transition: width 0.3s ease;
        }

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

        .nav-actions {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }

        .btn-login {
            background: transparent;
            color: var(--text-secondary);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 10px 20px;
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-sm);
            transition: all 0.25s ease;
        }

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

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-blue), #0066FF);
            color: #FFFFFF;
            font-weight: 700;
            font-size: 0.9rem;
            padding: 11px 24px;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 16px rgba(0, 82, 255, 0.4);
            transition: all 0.25s ease;
        }

        .btn-signup:hover {
            box-shadow: 0 6px 24px rgba(0, 82, 255, 0.7);
            transform: translateY(-2px);
        }

        .btn-signup:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(0, 82, 255, 0.4);
        }

        .mobile-menu-toggle {
            display: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.5rem;
            padding: 8px;
            border-radius: var(--radius-sm);
        }

        /* Category Page Hero */
        .cat-hero {
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.15), rgba(0, 240, 255, 0.08));
            position: relative;
            overflow: hidden;
            padding: var(--spacing-2xl) 0 var(--spacing-xl);
        }

        .cat-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: -20%;
            width: 60%;
            height: 100%;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.08), transparent 70%);
            pointer-events: none;
        }

        .cat-hero-content {
            display: flex;
            align-items: center;
            gap: var(--spacing-xl);
            position: relative;
            z-index: 1;
        }

        .cat-hero-text {
            flex: 1;
        }

        .cat-hero-label {
            display: inline-block;
            background: rgba(0, 240, 255, 0.15);
            color: var(--accent-cyan);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 6px 16px;
            border-radius: 50px;
            border: 1px solid var(--border-dim);
            margin-bottom: var(--spacing-sm);
        }

        .cat-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: var(--spacing-md);
            background: linear-gradient(to right, #FFFFFF, var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .cat-hero p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: var(--spacing-lg);
            max-width: 580px;
        }

        .cat-hero-stats {
            display: flex;
            gap: var(--spacing-lg);
        }

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

        .cat-hero-stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-cyan);
        }

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

        .cat-hero-visual {
            flex: 0 0 45%;
            position: relative;
        }

        .cat-hero-visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-glow), var(--shadow-card);
            width: 100%;
            object-fit: cover;
            aspect-ratio: 16 / 10;
        }

        .cat-hero-badge {
            position: absolute;
            bottom: 20px;
            right: -15px;
            background: rgba(0, 82, 255, 0.95);
            color: #FFFFFF;
            font-weight: 700;
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            backdrop-filter: blur(8px);
            border: 1px solid var(--accent-cyan);
            box-shadow: var(--shadow-glow);
        }

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

        .section-header {
            margin-bottom: var(--spacing-lg);
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: var(--spacing-xs);
            color: var(--text-primary);
        }

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

        /* Brand List Section */
        .brand-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }

        .brand-item {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            background: var(--secondary-bg);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            transition: all 0.3s ease;
            position: relative;
        }

        .brand-item:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.15);
            transform: translateY(-2px);
        }

        .brand-rank {
            flex: 0 0 50px;
            height: 50px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.3rem;
            color: #FFFFFF;
            box-shadow: var(--shadow-glow);
        }

        .brand-logo-area {
            flex: 0 0 90px;
            height: 90px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--accent-cyan);
            border: 1px solid var(--border-dim);
        }

        .brand-info {
            flex: 1;
            min-width: 0;
        }

        .brand-info h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .brand-info p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.5;
            margin-bottom: 8px;
        }

        .brand-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .brand-tag {
            font-size: 0.75rem;
            padding: 4px 12px;
            border-radius: 50px;
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent-cyan);
            border: 1px solid var(--border-dim);
        }

        .brand-tag.hot {
            background: rgba(255, 0, 127, 0.15);
            color: #FF4081;
            border-color: rgba(255, 0, 127, 0.3);
        }

        .brand-actions {
            display: flex;
            flex-direction: column;
            gap: 10px;
            align-items: flex-end;
        }

        .brand-bonus {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--accent-cyan);
            text-align: right;
        }

        .brand-bonus small {
            display: block;
            font-weight: 400;
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .btn-brand-cta {
            background: linear-gradient(135deg, var(--accent-blue), #0066FF);
            color: #FFFFFF;
            font-weight: 700;
            font-size: 0.9rem;
            padding: 10px 28px;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 16px rgba(0, 82, 255, 0.4);
            white-space: nowrap;
        }

        .btn-brand-cta:hover {
            box-shadow: 0 6px 24px rgba(0, 82, 255, 0.7);
            transform: translateY(-2px);
        }

        /* How it works */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }

        .step-card {
            background: var(--secondary-bg);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg) var(--spacing-md);
            text-align: left;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

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

        .step-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.1);
        }

        .step-number {
            font-size: 2.5rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1;
            margin-bottom: var(--spacing-sm);
        }

        .step-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

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

        /* Criteria Section */
        .criteria-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }

        .criteria-item {
            display: flex;
            gap: var(--spacing-md);
            background: var(--secondary-bg);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            transition: all 0.3s ease;
        }

        .criteria-item:hover {
            border-color: var(--accent-cyan);
        }

        .criteria-icon {
            flex: 0 0 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: rgba(0, 240, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--accent-cyan);
        }

        .criteria-item h4 {
            font-weight: 700;
            margin-bottom: 4px;
        }

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

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

        .faq-item {
            background: var(--secondary-bg);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.3s ease;
        }

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

        .faq-question {
            width: 100%;
            background: transparent;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1rem;
            text-align: left;
            padding: var(--spacing-md);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-question i {
            color: var(--accent-cyan);
            transition: transform 0.3s ease;
            font-size: 0.9rem;
        }

        .faq-answer {
            padding: 0 var(--spacing-md) var(--spacing-md);
            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(180deg);
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.2), rgba(0, 240, 255, 0.1));
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-xl);
            padding: var(--spacing-xl);
            text-align: left;
            position: relative;
            overflow: hidden;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
        }

        .cta-section p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            margin-bottom: var(--spacing-lg);
            max-width: 650px;
        }

        .cta-buttons {
            display: flex;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
        }

        .btn-cta-primary {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            color: #08090F;
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-glow);
        }

        .btn-cta-primary:hover {
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.8);
            transform: translateY(-2px);
        }

        .btn-cta-secondary {
            background: transparent;
            color: var(--accent-cyan);
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            border: 2px solid var(--border-glow);
        }

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

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

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

        .footer-brand h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

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

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

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

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

        .footer-col ul li a {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: color 0.25s ease;
        }

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

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

        /* FAB */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 1000;
            width: 56px;
            height: 56px;
            border-radius: 50px;
            background: rgba(8, 9, 15, 0.75);
            backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.3rem;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            transition: all 0.3s ease;
            opacity: 0.6;
            animation: fabPulse 3s infinite;
        }

        @keyframes fabPulse {
            0%, 100% { box-shadow: 0 0 15px rgba(0, 240, 255, 0.5); }
            50% { box-shadow: 0 0 30px rgba(0, 240, 255, 0.9); }
        }

        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.9);
        }

        .fab-notification {
            position: absolute;
            top: 4px;
            right: 4px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #FF4081;
            animation: blink 1s infinite;
        }

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

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

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: rgba(8, 9, 15, 0.98);
                flex-direction: column;
                padding: var(--spacing-md);
                border-bottom: 1px solid var(--border-dim);
            }
            .nav-links.active {
                display: flex;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .cat-hero-content {
                flex-direction: column;
            }
            .cat-hero-visual {
                flex: 0 0 auto;
                width: 100%;
            }
            .brand-item {
                flex-wrap: wrap;
            }
            .brand-actions {
                width: 100%;
                flex-direction: row;
                justify-content: space-between;
                align-items: center;
            }
            .steps-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
            .cat-hero h1 { font-size: 1.8rem; }
            .cta-section { text-align: center; }
        }

        @media (max-width: 520px) {
            .nav-logo { font-size: 1.1rem; }
            .cat-hero h1 { font-size: 1.5rem; }
            .cat-hero-stats { flex-direction: column; gap: var(--spacing-sm); }
            .brand-item { flex-direction: column; align-items: flex-start; }
            .brand-actions { flex-direction: column; align-items: stretch; }
            .btn-brand-cta { text-align: center; }
            .cta-buttons { flex-direction: column; }
            .btn-cta-primary, .btn-cta-secondary { text-align: center; }
        }

/* roulang page: category2 */
:root {
            --primary-bg: #08090F;
            --secondary-bg: #0D111E;
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #94A3B8;
            --border-dim: rgba(0, 240, 255, 0.2);
            --border-glow: rgba(0, 240, 255, 0.5);
            --shadow-glow: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-2xl: 96px;
            --font-sans: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--primary-bg);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s ease;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            outline: none;
            transition: all 0.25s ease;
        }
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }
        input {
            font-family: inherit;
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            background: rgba(13, 17, 30, 0.8);
            color: var(--text-primary);
            transition: border-color 0.25s ease;
        }
        input:focus {
            outline: none;
            border-color: var(--accent-cyan);
            box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.15);
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: var(--spacing-md);
            padding-right: var(--spacing-md);
        }
        /* Header & Navigation */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(8, 9, 15, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-dim);
            transition: background 0.3s ease;
        }
        .header.scrolled {
            background: rgba(8, 9, 15, 0.95);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
        }
        .nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            gap: var(--spacing-md);
        }
        .nav-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            white-space: nowrap;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-logo span {
            font-weight: 400;
            font-size: 0.85rem;
            -webkit-text-fill-color: var(--text-secondary);
            margin-left: 4px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }
        .nav-links a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 6px 0;
            transition: color 0.25s ease;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--accent-cyan);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-cyan);
            box-shadow: var(--shadow-glow);
            transition: width 0.3s ease;
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }
        .btn-login {
            background: transparent;
            color: var(--text-secondary);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 10px 20px;
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-sm);
            transition: all 0.25s ease;
        }
        .btn-login:hover {
            color: var(--accent-cyan);
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-glow);
        }
        .btn-signup {
            background: linear-gradient(135deg, var(--accent-blue), #0066FF);
            color: #FFFFFF;
            font-weight: 700;
            font-size: 0.9rem;
            padding: 11px 24px;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 16px rgba(0, 82, 255, 0.4);
            transition: all 0.25s ease;
        }
        .btn-signup:hover {
            box-shadow: 0 6px 24px rgba(0, 82, 255, 0.7);
            transform: translateY(-2px);
        }
        .btn-signup:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(0, 82, 255, 0.4);
        }
        .mobile-menu-toggle {
            display: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.5rem;
            padding: var(--spacing-xs);
        }
        /* Category Hero Section */
        .category-hero {
            padding-top: 120px;
            padding-bottom: var(--spacing-xl);
            background: radial-gradient(ellipse at 30% 50%, rgba(0, 82, 255, 0.15) 0%, transparent 60%);
            border-bottom: 1px solid var(--border-dim);
            position: relative;
            overflow: hidden;
        }
        .category-hero .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
            align-items: center;
        }
        .category-hero-content h1 {
            font-size: clamp(2rem, 5vw, 3rem);
            font-weight: 800;
            line-height: 1.2;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
            background: linear-gradient(135deg, #FFFFFF, var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .category-hero-content p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: var(--spacing-md);
        }
        .hero-stats {
            display: flex;
            gap: var(--spacing-md);
        }
        .hero-stat-item {
            background: rgba(13, 17, 30, 0.6);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-md);
            padding: var(--spacing-sm);
            text-align: center;
            min-width: 80px;
        }
        .hero-stat-item span {
            display: block;
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--accent-cyan);
        }
        .hero-stat-item small {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .category-hero-image {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .category-hero-image img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-dim);
        }
        /* Section General */
        .section {
            padding: var(--spacing-xl) 0;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: var(--spacing-xs);
            color: var(--text-primary);
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            margin-bottom: var(--spacing-lg);
        }
        /* Strategy Cards */
        .strategy-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: var(--spacing-md);
        }
        .strategy-card {
            background: rgba(13, 17, 30, 0.4);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg) var(--spacing-md);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        .strategy-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            height: 4px;
            width: 100%;
            background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
            transform: scaleX(0);
            transition: transform 0.3s ease;
        }
        .strategy-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-glow);
            transform: translateY(-4px);
        }
        .strategy-card:hover::before {
            transform: scaleX(1);
        }
        .strategy-icon {
            font-size: 2.2rem;
            color: var(--accent-cyan);
            margin-bottom: var(--spacing-sm);
        }
        .strategy-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: var(--spacing-xs);
        }
        .strategy-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        /* Advanced Tactic Panel */
        .tactic-panel {
            background: rgba(13, 17, 30, 0.6);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-xl);
            padding: var(--spacing-xl);
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: var(--spacing-lg);
            align-items: center;
        }
        .tactic-panel ul {
            list-style: none;
            display: grid;
            gap: var(--spacing-sm);
        }
        .tactic-panel ul li {
            display: flex;
            align-items: flex-start;
            gap: var(--spacing-sm);
            font-size: 1rem;
            color: var(--text-secondary);
        }
        .tactic-panel ul li i {
            color: var(--accent-cyan);
            font-size: 1.2rem;
            margin-top: 2px;
        }
        .tactic-panel-image img {
            border-radius: var(--radius-md);
            border: 1px solid var(--border-dim);
        }
        /* Process Flow */
        .process-flow {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            position: relative;
            margin-top: var(--spacing-lg);
        }
        .process-step {
            text-align: center;
            flex: 1;
            position: relative;
        }
        .process-step:not(:last-child)::after {
            content: '';
            position: absolute;
            top: 30px;
            left: 60%;
            width: 80%;
            height: 2px;
            background: linear-gradient(90deg, var(--accent-blue), transparent);
        }
        .step-number {
            width: 60px;
            height: 60px;
            line-height: 60px;
            border-radius: 50%;
            background: var(--secondary-bg);
            border: 2px solid var(--accent-blue);
            color: var(--accent-cyan);
            font-weight: 800;
            font-size: 1.4rem;
            margin: 0 auto var(--spacing-sm);
            position: relative;
            z-index: 2;
        }
        .step-title {
            font-weight: 600;
            margin-bottom: 4px;
        }
        .step-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        /* FAQ */
        .faq-item {
            border-bottom: 1px solid var(--border-dim);
            padding: var(--spacing-md) 0;
        }
        .faq-question {
            font-weight: 600;
            font-size: 1.1rem;
            display: flex;
            justify-content: space-between;
            cursor: pointer;
            color: var(--text-primary);
        }
        .faq-answer {
            color: var(--text-secondary);
            font-size: 0.95rem;
            padding-top: var(--spacing-xs);
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary-bg), var(--primary-bg));
            border-top: 1px solid var(--border-dim);
            border-bottom: 1px solid var(--border-dim);
            padding: var(--spacing-xl) 0;
            text-align: center;
        }
        .footer {
            background: rgba(8, 9, 15, 0.8);
            border-top: 1px solid var(--border-dim);
            padding: var(--spacing-xl) 0 var(--spacing-md);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }
        .footer-brand h3 {
            font-size: 1.4rem;
            margin-bottom: var(--spacing-xs);
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .footer-col h4 {
            font-weight: 600;
            margin-bottom: var(--spacing-sm);
            color: var(--text-primary);
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: color 0.2s;
        }
        .footer-col ul li a:hover {
            color: var(--accent-cyan);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-dim);
            padding-top: var(--spacing-md);
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        /* FAB */
        .fab {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50px;
            background: rgba(13, 17, 30, 0.7);
            backdrop-filter: blur(12px);
            border: 2px solid transparent;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.5rem;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
            transition: all 0.3s;
            animation: pulse-glow 2s infinite;
        }
        .fab:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.6);
            transform: scale(1.1);
        }
        @keyframes pulse-glow {
            0% { box-shadow: 0 0 15px rgba(0, 240, 255, 0.3); }
            50% { box-shadow: 0 0 30px rgba(0, 240, 255, 0.6); }
            100% { box-shadow: 0 0 15px rgba(0, 240, 255, 0.3); }
        }
        /* Mobile Responsive */
        @media (max-width: 1024px) {
            .nav-links {
                gap: 16px;
            }
            .nav-links a {
                font-size: 0.85rem;
            }
            .category-hero .container {
                grid-template-columns: 1fr;
            }
            .tactic-panel {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: var(--primary-bg);
                flex-direction: column;
                padding: var(--spacing-md);
                border-bottom: 1px solid var(--border-dim);
                z-index: 999;
            }
            .nav-links.active {
                display: flex;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .process-flow {
                flex-direction: column;
                gap: var(--spacing-md);
            }
            .process-step:not(:last-child)::after {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .hero-stats {
                flex-wrap: wrap;
            }
        }

/* roulang page: category4 */
:root {
            --primary-bg: #08090F;
            --secondary-bg: #0D111E;
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #94A3B8;
            --border-dim: rgba(0, 240, 255, 0.2);
            --border-glow: rgba(0, 240, 255, 0.5);
            --shadow-glow: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-2xl: 96px;
            --font-sans: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--primary-bg);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s ease;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            outline: none;
            transition: all 0.25s ease;
        }
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: var(--spacing-md);
            padding-right: var(--spacing-md);
        }
        /* Header & Navigation */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(8, 9, 15, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-dim);
            transition: background 0.3s ease;
        }
        .header.scrolled {
            background: rgba(8, 9, 15, 0.95);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
        }
        .nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            gap: var(--spacing-md);
        }
        .nav-logo {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            white-space: nowrap;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-logo span {
            font-weight: 400;
            font-size: 0.75rem;
            -webkit-text-fill-color: var(--text-secondary);
            margin-left: 4px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
        }
        .nav-links a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 6px 0;
            transition: color 0.25s ease;
            white-space: nowrap;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--accent-cyan);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-cyan);
            box-shadow: var(--shadow-glow);
            transition: width 0.3s ease;
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }
        .btn-login {
            background: transparent;
            color: var(--text-secondary);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 10px 20px;
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-sm);
            transition: all 0.25s ease;
        }
        .btn-login:hover {
            color: var(--accent-cyan);
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-glow);
        }
        .btn-signup {
            background: linear-gradient(135deg, var(--accent-blue), #0066FF);
            color: #FFFFFF;
            font-weight: 700;
            font-size: 0.85rem;
            padding: 11px 20px;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 16px rgba(0, 82, 255, 0.4);
            transition: all 0.25s ease;
        }
        .btn-signup:hover {
            box-shadow: 0 6px 24px rgba(0, 82, 255, 0.7);
            transform: translateY(-2px);
        }
        .btn-signup:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(0, 82, 255, 0.4);
        }
        .mobile-menu-toggle {
            display: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.6rem;
            padding: 4px 8px;
        }
        /* Page Banner */
        .page-banner {
            padding-top: calc(70px + var(--spacing-xl));
            padding-bottom: var(--spacing-xl);
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(8,9,15,0.85) 0%, rgba(8,9,15,0.7) 100%);
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .page-banner-content {
            display: flex;
            align-items: center;
            gap: var(--spacing-xl);
        }
        .page-banner-text {
            flex: 1;
        }
        .page-banner-text h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.15;
            margin-bottom: var(--spacing-sm);
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .page-banner-text p {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin-bottom: var(--spacing-md);
            line-height: 1.7;
        }
        .banner-badge {
            display: inline-block;
            background: rgba(0,240,255,0.12);
            border: 1px solid var(--border-dim);
            color: var(--accent-cyan);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: var(--spacing-sm);
        }
        .page-banner-image {
            flex: 0 0 380px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card), var(--shadow-glow);
            border: 1px solid var(--border-dim);
        }
        .page-banner-image img {
            width: 100%;
            height: auto;
        }
        /* Sections */
        section {
            padding: var(--spacing-xl) 0;
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--accent-cyan);
            margin-bottom: var(--spacing-xs);
        }
        h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: var(--spacing-sm);
            color: var(--text-primary);
        }
        h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-primary);
        }
        .text-muted {
            color: var(--text-muted);
        }
        /* Promo Cards */
        .promo-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-md);
        }
        .promo-card {
            background: var(--secondary-bg);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            display: flex;
            gap: var(--spacing-md);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        .promo-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }
        .promo-card-image {
            flex: 0 0 120px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            border: 1px solid var(--border-dim);
        }
        .promo-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .promo-card-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .promo-tag {
            display: inline-block;
            background: linear-gradient(135deg, #FF4500, #FF0000);
            color: #FFF;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 12px;
            margin-bottom: 6px;
            width: fit-content;
            animation: pulse-tag 2s infinite;
        }
        @keyframes pulse-tag {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.7; }
        }
        .promo-card h3 {
            font-size: 1.1rem;
            margin-bottom: 4px;
        }
        .promo-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: var(--spacing-xs);
        }
        .promo-meta {
            display: flex;
            gap: var(--spacing-sm);
            font-size: 0.8rem;
            color: var(--accent-cyan);
            font-weight: 600;
        }
        /* Event Timeline */
        .event-timeline {
            position: relative;
            padding-left: 40px;
        }
        .event-timeline::before {
            content: '';
            position: absolute;
            left: 15px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--border-dim);
        }
        .event-item {
            position: relative;
            margin-bottom: var(--spacing-md);
            padding-left: var(--spacing-md);
        }
        .event-item::before {
            content: '';
            position: absolute;
            left: -31px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--accent-cyan);
            box-shadow: var(--shadow-glow);
        }
        .event-date {
            font-size: 0.8rem;
            color: var(--accent-cyan);
            font-weight: 700;
        }
        .event-item h4 {
            font-size: 1.1rem;
            margin: 4px 0;
        }
        .event-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        /* Hot Deals Table */
        .hot-table {
            width: 100%;
            border-collapse: collapse;
            margin-top: var(--spacing-md);
        }
        .hot-table th {
            text-align: left;
            padding: 14px 16px;
            background: rgba(0,240,255,0.05);
            border-bottom: 1px solid var(--border-dim);
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--accent-cyan);
        }
        .hot-table td {
            padding: 14px 16px;
            border-bottom: 1px solid var(--border-dim);
            font-size: 0.95rem;
            color: var(--text-secondary);
        }
        .hot-table tr:hover td {
            background: rgba(0,240,255,0.03);
        }
        .value-highlight {
            color: #FFD700;
            font-weight: 700;
        }
        /* FAQ */
        .faq-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-md);
        }
        .faq-item {
            background: var(--secondary-bg);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            transition: all 0.3s ease;
        }
        .faq-item:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-glow);
        }
        .faq-item h4 {
            font-size: 1rem;
            margin-bottom: 6px;
            color: var(--accent-cyan);
        }
        .faq-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        /* CTA Section */
        .cta-section {
            background: var(--secondary-bg);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-lg);
            text-align: left;
            padding: var(--spacing-xl) var(--spacing-lg);
            margin-top: var(--spacing-lg);
        }
        .cta-section h2 {
            margin-bottom: var(--spacing-sm);
        }
        .cta-section p {
            color: var(--text-muted);
            margin-bottom: var(--spacing-md);
            max-width: 600px;
        }
        .btn-cta-lg {
            display: inline-block;
            background: linear-gradient(135deg, var(--accent-blue), #0066FF);
            color: #FFF;
            font-weight: 700;
            font-size: 1.05rem;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 20px rgba(0, 82, 255, 0.5);
            transition: all 0.3s ease;
        }
        .btn-cta-lg:hover {
            box-shadow: 0 6px 30px rgba(0, 82, 255, 0.8);
            transform: translateY(-2px);
        }
        /* Footer */
        .footer {
            background: var(--secondary-bg);
            border-top: 1px solid var(--border-dim);
            padding: var(--spacing-xl) 0 var(--spacing-md);
            margin-top: var(--spacing-xl);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }
        .footer-brand h3 {
            font-size: 1.2rem;
            margin-bottom: 6px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .footer-brand p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .footer-col h4 {
            font-size: 0.85rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 12px;
            color: var(--accent-cyan);
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: color 0.2s;
        }
        .footer-col ul li a:hover {
            color: var(--accent-cyan);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-dim);
            padding-top: var(--spacing-md);
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        /* FAB */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 999;
            width: 52px;
            height: 52px;
            border-radius: 50px;
            background: rgba(8,9,15,0.8);
            backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.4rem;
            box-shadow: 0 0 18px rgba(0,240,255,0.4);
            transition: all 0.3s ease;
            cursor: pointer;
            animation: breathe 3s ease-in-out infinite;
        }
        .fab::before {
            content: '';
            position: absolute;
            inset: -3px;
            border-radius: 50px;
            padding: 2px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            -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;
        }
        .fab:hover {
            box-shadow: 0 0 28px rgba(0,240,255,0.8);
            transform: scale(1.1);
        }
        .fab:active {
            transform: scale(0.95);
        }
        @keyframes breathe {
            0%, 100% { opacity: 0.8; }
            50% { opacity: 1; }
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .page-banner-content {
                flex-direction: column;
            }
            .page-banner-image {
                flex: 0 0 auto;
                max-width: 400px;
                width: 100%;
            }
            .promo-grid {
                grid-template-columns: 1fr;
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .nav-links {
                gap: 16px;
            }
            .nav-links a {
                font-size: 0.82rem;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: var(--secondary-bg);
                flex-direction: column;
                padding: var(--spacing-md);
                border-bottom: 1px solid var(--border-dim);
                gap: 12px;
            }
            .nav-links.show {
                display: flex;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .page-banner-text h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 520px) {
            .nav-actions .btn-login {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            .nav-actions .btn-signup {
                padding: 9px 14px;
                font-size: 0.8rem;
            }
            .page-banner-text h1 {
                font-size: 1.6rem;
            }
            .promo-card {
                flex-direction: column;
            }
            .promo-card-image {
                flex: 0 0 auto;
                height: 160px;
            }
        }

/* roulang page: category3 */
:root {
            --primary-bg: #08090F;
            --secondary-bg: #0D111E;
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #94A3B8;
            --border-dim: rgba(0, 240, 255, 0.2);
            --border-glow: rgba(0, 240, 255, 0.5);
            --shadow-glow: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-2xl: 96px;
            --font-sans: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--primary-bg);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: 70px;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s ease;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            outline: none;
            transition: all 0.25s ease;
        }

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

        input,
        select {
            font-family: inherit;
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            background: rgba(13, 17, 30, 0.8);
            color: var(--text-primary);
            transition: border-color 0.25s ease;
        }

        input:focus,
        select:focus {
            outline: none;
            border-color: var(--accent-cyan);
            box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.15);
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: var(--spacing-md);
            padding-right: var(--spacing-md);
        }

        /* Header & Navigation */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(8, 9, 15, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-dim);
            transition: background 0.3s ease;
        }

        .header.scrolled {
            background: rgba(8, 9, 15, 0.95);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
        }

        .nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            gap: var(--spacing-md);
        }

        .nav-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            white-space: nowrap;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-logo span {
            font-weight: 400;
            font-size: 0.85rem;
            -webkit-text-fill-color: var(--text-secondary);
            margin-left: 4px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }

        .nav-links a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 6px 0;
            transition: color 0.25s ease;
        }

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

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-cyan);
            box-shadow: var(--shadow-glow);
            transition: width 0.3s ease;
        }

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

        .nav-actions {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }

        .btn-login {
            background: transparent;
            color: var(--text-secondary);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 10px 20px;
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-sm);
            transition: all 0.25s ease;
        }

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

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-blue), #0066FF);
            color: #FFFFFF;
            font-weight: 700;
            font-size: 0.9rem;
            padding: 11px 24px;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 16px rgba(0, 82, 255, 0.4);
            transition: all 0.25s ease;
        }

        .btn-signup:hover {
            box-shadow: 0 6px 24px rgba(0, 82, 255, 0.7);
            transform: translateY(-2px);
        }

        .btn-signup:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(0, 82, 255, 0.4);
        }

        .mobile-menu-toggle {
            display: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.5rem;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-dim);
        }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: var(--spacing-xs);
            background: linear-gradient(135deg, var(--accent-blue), #0066FF);
            color: #FFFFFF;
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 16px rgba(0, 82, 255, 0.4);
            transition: all 0.3s ease;
        }

        .btn-primary:hover {
            box-shadow: 0 8px 32px rgba(0, 82, 255, 0.7);
            transform: translateY(-2px);
        }

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

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: var(--spacing-xs);
            background: transparent;
            color: var(--accent-cyan);
            font-weight: 600;
            font-size: 1rem;
            padding: 13px 28px;
            border: 1px solid var(--accent-cyan);
            border-radius: var(--radius-sm);
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.2);
            transition: all 0.3s ease;
        }

        .btn-outline:hover {
            background: rgba(0, 240, 255, 0.1);
            box-shadow: 0 0 24px rgba(0, 240, 255, 0.4);
        }

        /* Hero Section */
        .hero {
            padding: var(--spacing-xl) 0;
            background: radial-gradient(ellipse at 50% 0%, rgba(0, 82, 255, 0.15), transparent 70%), var(--primary-bg);
            border-bottom: 1px solid var(--border-dim);
        }

        .hero .container {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid var(--border-dim);
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-cyan);
            margin-bottom: var(--spacing-md);
        }

        .hero-badge i {
            color: #FFD700;
        }

        .hero-title {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: var(--spacing-md);
            background: linear-gradient(135deg, #FFFFFF, var(--text-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

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

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

        .hero-group-buy {
            background: rgba(13, 17, 30, 0.9);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            box-shadow: var(--shadow-glow);
            margin-bottom: var(--spacing-md);
        }

        .group-buy-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: var(--spacing-sm);
        }

        .group-count {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-cyan);
        }

        .group-count small {
            font-size: 0.9rem;
            font-weight: 400;
            color: var(--text-muted);
        }

        .group-progress {
            height: 6px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 3px;
            overflow: hidden;
            margin-bottom: var(--spacing-sm);
        }

        .group-progress-bar {
            height: 100%;
            width: 72%;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue));
            border-radius: 3px;
            box-shadow: var(--shadow-glow);
            animation: progressPulse 2s ease-in-out infinite;
        }

        @keyframes progressPulse {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.7;
            }
        }

        .group-buy-actions {
            display: flex;
            gap: var(--spacing-sm);
            margin-top: var(--spacing-md);
        }

        .hero-visual {
            position: relative;
        }

        .hero-visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-dim);
        }

        .hero-floating-card {
            position: absolute;
            bottom: -20px;
            left: -20px;
            background: rgba(13, 17, 30, 0.95);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-md);
            padding: var(--spacing-sm);
            display: flex;
            align-items: center;
            gap: 12px;
            box-shadow: var(--shadow-glow);
            backdrop-filter: blur(10px);
        }

        .floating-icon {
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
        }

        .floating-text strong {
            display: block;
            color: var(--accent-cyan);
            font-size: 0.85rem;
        }

        .floating-text span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

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

        .section-header {
            margin-bottom: var(--spacing-lg);
        }

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: var(--spacing-sm);
            color: var(--text-primary);
        }

        .section-header p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 700px;
        }

        /* Promo Cards Grid */
        .promo-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }

        .promo-card {
            background: var(--secondary-bg);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .promo-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 24px rgba(0, 240, 255, 0.25);
            transform: translateY(-4px);
        }

        .promo-card-img {
            position: relative;
            height: 180px;
            overflow: hidden;
        }

        .promo-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .promo-card:hover .promo-card-img img {
            transform: scale(1.05);
        }

        .promo-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: linear-gradient(135deg, #FF4500, #FF0000);
            color: #FFFFFF;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 50px;
            text-transform: uppercase;
        }

        .promo-tag-new {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
        }

        .promo-card-body {
            padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md);
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .promo-card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: var(--spacing-xs);
            color: var(--text-primary);
        }

        .promo-card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
        }

        .promo-meta {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
            margin-top: var(--spacing-sm);
            color: var(--accent-cyan);
            font-size: 0.85rem;
            font-weight: 600;
        }

        /* Process Section */
        .process-flow {
            background: var(--secondary-bg);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
            margin-top: var(--spacing-md);
        }

        .process-step {
            text-align: left;
            position: relative;
        }

        .process-step-num {
            width: 48px;
            height: 48px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
            margin-bottom: var(--spacing-sm);
            box-shadow: var(--shadow-glow);
        }

        .process-step h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--text-primary);
        }

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

        /* Table Section */
        .promo-table-wrap {
            overflow-x: auto;
        }

        .promo-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--secondary-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-dim);
        }

        .promo-table th {
            background: rgba(0, 82, 255, 0.2);
            padding: 16px 20px;
            text-align: left;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--accent-cyan);
            border-bottom: 1px solid var(--border-dim);
        }

        .promo-table td {
            padding: 14px 20px;
            border-bottom: 1px solid var(--border-dim);
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

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

        .promo-table tr:hover td {
            background: rgba(0, 240, 255, 0.05);
        }

        .badge-hot {
            display: inline-block;
            background: #FF4500;
            color: #FFF;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 2px 10px;
            border-radius: 50px;
            text-transform: uppercase;
            margin-left: 8px;
        }

        .badge-free {
            display: inline-block;
            background: #00C853;
            color: #FFF;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 2px 10px;
            border-radius: 50px;
            text-transform: uppercase;
        }

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

        .faq-item {
            background: var(--secondary-bg);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color 0.3s ease;
        }

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

        .faq-question {
            width: 100%;
            background: transparent;
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            border: none;
            cursor: pointer;
        }

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

        .faq-answer {
            padding: 0 24px 20px;
            display: none;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

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

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

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.2), rgba(0, 240, 255, 0.1));
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            text-align: center;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: var(--spacing-sm);
        }

        .cta-section p {
            color: var(--text-secondary);
            margin-bottom: var(--spacing-md);
            font-size: 1.05rem;
        }

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

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }

        .footer-brand h3 {
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: var(--spacing-sm);
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

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

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

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

        .footer-col a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: color 0.25s ease;
        }

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

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

        /* FAB */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            background: rgba(13, 17, 30, 0.6);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.3rem;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.5);
            transition: all 0.3s ease;
            cursor: pointer;
            position: relative;
        }

        .fab::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 50%;
            background: linear-gradient(135deg, #CCFF00, #00F0FF);
            z-index: -1;
            opacity: 0.6;
        }

        .fab:hover {
            transform: scale(1.1);
            box-shadow: 0 0 32px rgba(0, 240, 255, 0.8);
            opacity: 1;
        }

        .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: #FF007F;
            border-radius: 50%;
            animation: blink 1.2s ease-in-out infinite;
        }

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

        /* Responsive */
        @media screen and (max-width: 1024px) {
            .container {
                padding-left: var(--spacing-sm);
                padding-right: var(--spacing-sm);
            }
            .hero .container {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            .hero-title {
                font-size: 2.4rem;
            }
            .promo-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media screen and (max-width: 768px) {
            .nav-links {
                display: none;
                position: fixed;
                top: 70px;
                left: 0;
                right: 0;
                background: rgba(8, 9, 15, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: var(--spacing-md);
                border-bottom: 1px solid var(--border-dim);
                z-index: 999;
            }
            .nav-links.open {
                display: flex;
            }
            .mobile-menu-toggle {
                display: inline-flex;
            }
            .hero-title {
                font-size: 2rem;
            }
            .promo-grid {
                grid-template-columns: 1fr;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .group-buy-actions {
                flex-direction: column;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
        }