/* roulang page: index */
:root {
            --primary-bg: #0B1A30;
            --secondary-bg: #0F0C20;
            --accent-cyan: #00F0FF;
            --accent-lime: #CCFF00;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --border-neon: rgba(0, 240, 255, 0.4);
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-soft: 0 8px 24px rgba(0, 0, 0, 0.4);
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --spacing-sm: 8px;
            --spacing-md: 16px;
            --spacing-lg: 32px;
            --spacing-xl: 64px;
            --font-body: 'Segoe UI', 'Roboto', system-ui, -apple-system, sans-serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-body);
            background: linear-gradient(135deg, var(--secondary-bg) 0%, var(--primary-bg) 100%);
            color: var(--text-white);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        button, .btn {
            cursor: pointer;
            font-family: inherit;
            transition: all 0.3s ease;
            border: none;
            outline: none;
        }
        button:focus-visible, a:focus-visible, .btn:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }
        .section-padding {
            padding: var(--spacing-xl) 0;
        }
        .text-gradient {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .neon-border {
            border: 1px solid var(--border-neon);
        }
        .neon-border:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-neon);
        }
        .card-hover {
            transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card-hover:hover {
            transform: translateY(-6px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5), var(--shadow-neon);
        }
        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(15, 12, 32, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.2);
            transition: all 0.3s ease;
        }
        .site-header.scrolled {
            background: rgba(11, 26, 48, 0.95);
            border-bottom-color: rgba(0, 240, 255, 0.5);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: var(--spacing-md);
        }
        .nav-logo {
            font-size: 1.4rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            white-space: nowrap;
            color: var(--accent-cyan);
            transition: color 0.3s ease;
        }
        .nav-logo:hover {
            color: var(--accent-lime);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            list-style: none;
        }
        .nav-links a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-silver);
            padding: 8px 16px;
            border-radius: 20px;
            transition: all 0.3s ease;
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--text-white);
            background: rgba(0, 240, 255, 0.1);
        }
        .nav-links a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.15);
            font-weight: 700;
        }
        .nav-auth {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn-login {
            background: transparent;
            color: var(--text-white);
            padding: 10px 18px;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }
        .btn-login:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--accent-cyan);
        }
        .btn-signup {
            background: linear-gradient(135deg, var(--accent-cyan), #00a8cc);
            color: #0B1A30;
            padding: 10px 22px;
            border-radius: 24px;
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: 0 4px 15px rgba(0, 240, 255, 0.3);
        }
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(0, 240, 255, 0.5);
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
        }
        .mobile-toggle {
            display: none;
            background: transparent;
            color: var(--text-white);
            font-size: 1.5rem;
            padding: 8px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .mobile-menu {
            display: none;
            background: rgba(11, 26, 48, 0.98);
            border-top: 1px solid rgba(0, 240, 255, 0.2);
            padding: var(--spacing-md) 0;
        }
        .mobile-menu.active {
            display: block;
        }
        .mobile-menu .nav-links {
            flex-direction: column;
            align-items: stretch;
            gap: 4px;
            padding: 0 var(--spacing-md);
        }
        .mobile-menu .nav-auth {
            flex-direction: column;
            padding: var(--spacing-md);
            gap: 10px;
        }
        /* Hero Section */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: linear-gradient(135deg, rgba(15, 12, 32, 0.85) 0%, rgba(11, 26, 48, 0.75) 100%), url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            padding: 120px 0 80px;
        }
        .hero-content {
            max-width: 900px;
            margin: 0 auto;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(0, 240, 255, 0.15);
            border: 1px solid var(--border-neon);
            color: var(--accent-cyan);
            padding: 8px 20px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            margin-bottom: var(--spacing-lg);
            animation: pulse-glow 2s infinite;
        }
        @keyframes pulse-glow {
            0%, 100% { box-shadow: 0 0 10px rgba(0, 240, 255, 0.3); }
            50% { box-shadow: 0 0 25px rgba(0, 240, 255, 0.6); }
        }
        .hero h1 {
            font-size: clamp(2.2rem, 5vw, 4rem);
            font-weight: 900;
            letter-spacing: -0.03em;
            line-height: 1.15;
            margin-bottom: var(--spacing-lg);
            text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
        }
        .hero p {
            font-size: clamp(1rem, 2vw, 1.2rem);
            color: var(--text-silver);
            max-width: 750px;
            margin: 0 auto var(--spacing-lg);
            line-height: 1.7;
        }
        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            margin-bottom: var(--spacing-xl);
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent-cyan), #00a8cc);
            color: #0B1A30;
            padding: 16px 36px;
            border-radius: 40px;
            font-weight: 800;
            font-size: 1.05rem;
            box-shadow: 0 6px 25px rgba(0, 240, 255, 0.4);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 35px rgba(0, 240, 255, 0.6);
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
        }
        .btn-secondary {
            background: transparent;
            color: var(--text-white);
            padding: 16px 36px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1.05rem;
            border: 2px solid rgba(255, 255, 255, 0.4);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn-secondary:hover {
            border-color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.1);
            transform: translateY(-3px);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            justify-content: center;
            margin-top: var(--spacing-lg);
        }
        .hero-stat {
            text-align: center;
        }
        .hero-stat-number {
            font-size: 2rem;
            font-weight: 900;
            color: var(--accent-cyan);
        }
        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--text-silver);
        }
        /* Section Styles */
        .section-title {
            font-size: clamp(1.8rem, 3.5vw, 2.8rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: var(--spacing-md);
            text-align: left;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-silver);
            max-width: 700px;
            margin-bottom: var(--spacing-lg);
            text-align: left;
            line-height: 1.7;
        }
        /* Feature Grid */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: var(--spacing-lg);
            margin-top: var(--spacing-lg);
        }
        .feature-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            transition: all 0.35s ease;
        }
        .feature-card:hover {
            background: rgba(0, 240, 255, 0.05);
            border-color: var(--border-neon);
            transform: translateY(-5px);
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(0, 240, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-cyan);
            margin-bottom: var(--spacing-md);
        }
        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-silver);
            line-height: 1.65;
        }
        /* Game Track */
        .game-track {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: var(--spacing-md);
            margin-top: var(--spacing-lg);
        }
        .game-thumb {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 2px solid rgba(0, 240, 255, 0.2);
            transition: all 0.3s ease;
            cursor: pointer;
            aspect-ratio: 16/10;
        }
        .game-thumb:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-neon);
            transform: scale(1.03);
        }
        .game-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .game-thumb-tag {
            position: absolute;
            top: 8px;
            left: 8px;
            background: rgba(0, 0, 0, 0.7);
            color: var(--accent-lime);
            padding: 4px 10px;
            border-radius: 12px;
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.05em;
        }
        /* Info List */
        .info-list-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
        }
        .info-list-content {
            text-align: left;
        }
        .info-list {
            list-style: none;
            margin-top: var(--spacing-lg);
        }
        .info-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.95rem;
            color: var(--text-silver);
        }
        .info-list li i {
            color: var(--accent-cyan);
            margin-top: 4px;
        }
        /* Trust Bar */
        .trust-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
            padding: var(--spacing-lg) 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            margin: var(--spacing-xl) 0;
        }
        .trust-item {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-silver);
            font-size: 0.9rem;
            font-weight: 500;
        }
        .trust-item i {
            color: var(--accent-lime);
            font-size: 1.1rem;
        }
        /* FAQ */
        .faq-list {
            max-width: 850px;
            margin: var(--spacing-lg) auto 0;
            text-align: left;
        }
        .faq-item {
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            padding: var(--spacing-md) 0;
        }
        .faq-question {
            font-size: 1.05rem;
            font-weight: 700;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-white);
            transition: color 0.3s ease;
        }
        .faq-question:hover {
            color: var(--accent-cyan);
        }
        .faq-question i {
            color: var(--accent-cyan);
            transition: transform 0.3s ease;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            color: var(--text-silver);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 200px;
            padding-top: 12px;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        /* CTA Section */
        .cta-section {
            text-align: center;
            padding: var(--spacing-xl) 0;
        }
        .cta-section h2 {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            font-weight: 800;
            margin-bottom: var(--spacing-md);
        }
        .cta-section p {
            color: var(--text-silver);
            max-width: 600px;
            margin: 0 auto var(--spacing-lg);
        }
        /* Footer */
        .site-footer {
            background: rgba(11, 26, 48, 0.9);
            border-top: 1px solid rgba(0, 240, 255, 0.2);
            padding: var(--spacing-xl) 0 var(--spacing-md);
            margin-top: var(--spacing-xl);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--accent-cyan);
            margin-bottom: var(--spacing-md);
        }
        .footer-column h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: var(--spacing-md);
            color: var(--text-white);
        }
        .footer-column ul {
            list-style: none;
        }
        .footer-column ul li {
            margin-bottom: 8px;
        }
        .footer-column ul a {
            color: var(--text-silver);
            font-size: 0.9rem;
            transition: color 0.3s ease;
        }
        .footer-column ul a:hover {
            color: var(--accent-cyan);
        }
        .footer-bottom {
            text-align: center;
            padding-top: var(--spacing-md);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--text-silver);
            font-size: 0.85rem;
        }
        /* FAB */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid var(--accent-cyan);
            color: var(--accent-cyan);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            opacity: 0.6;
            box-shadow: var(--shadow-neon);
            transition: all 0.35s ease;
            animation: fab-float 3s ease-in-out infinite;
        }
        @keyframes fab-float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
        .fab:hover {
            opacity: 1;
            transform: scale(1.15);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.8);
            animation-play-state: paused;
        }
        .fab:active {
            transform: scale(0.9);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .info-list-section {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            .nav-links a {
                padding: 8px 10px;
                font-size: 0.85rem;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-auth {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .mobile-menu .nav-links {
                display: flex;
            }
            .mobile-menu .nav-auth {
                display: flex;
            }
            .hero {
                min-height: auto;
                padding: 100px 0 60px;
                background-attachment: scroll;
            }
            .hero-stats {
                gap: 16px;
            }
            .hero-stat-number {
                font-size: 1.5rem;
            }
            .section-padding {
                padding: var(--spacing-lg) 0;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .game-track {
                grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 var(--spacing-md);
            }
            .nav-wrapper {
                height: 60px;
            }
            .nav-logo {
                font-size: 1.1rem;
            }
            .btn-primary, .btn-secondary {
                padding: 14px 24px;
                font-size: 0.9rem;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .game-track {
                grid-template-columns: repeat(2, 1fr);
            }
            .trust-bar {
                gap: 12px;
            }
            .trust-item {
                font-size: 0.75rem;
            }
            .fab {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                left: 12px;
                bottom: 80px;
            }
        }

/* roulang page: category1 */
:root {
            --deep-teal: #062315;
            --jungle-green: #0B3C25;
            --forest-green: #0A2E1C;
            --sunny-yellow: #FFCC00;
            --lime-green: #32CD32;
            --warm-white: #FFFDF0;
            --light-green: #C5E2D2;
            --gold-gradient: linear-gradient(135deg, #FFD700 0%, #FF9F00 100%);
            --card-radius: 20px;
            --shadow-soft: 0 8px 30px rgba(0,0,0,0.35);
            --shadow-glow: 0 4px 20px rgba(255,204,0,0.3);
            --border-gold: 1px solid rgba(255,215,0,0.4);
            --text-silver: #A6ACAF;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            background-color: var(--deep-teal);
            color: var(--warm-white);
            line-height: 1.65;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-base);
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(6, 35, 21, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 215, 0, 0.25);
            transition: var(--transition-base);
            padding: 14px 0;
        }
        .site-header.scrolled {
            background: rgba(6, 35, 21, 0.98);
            box-shadow: 0 4px 20px rgba(0,0,0,0.4);
            padding: 10px 0;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--sunny-yellow);
            letter-spacing: -0.01em;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            background: var(--gold-gradient);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: #0A2E1C;
            box-shadow: var(--shadow-glow);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links a {
            display: block;
            padding: 10px 18px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--light-green);
            border-radius: 50px;
            white-space: nowrap;
            transition: var(--transition-base);
            border: 1px solid transparent;
        }
        .nav-links a:hover {
            background: rgba(255, 215, 0, 0.1);
            color: var(--sunny-yellow);
            border-color: rgba(255, 215, 0, 0.3);
        }
        .nav-links a.active {
            background: var(--gold-gradient);
            color: #0A2E1C;
            font-weight: 700;
            box-shadow: var(--shadow-glow);
        }
        .nav-auth {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .btn-login {
            padding: 10px 18px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--warm-white);
            background: transparent;
            border: 1px solid rgba(255,255,255,0.25);
            border-radius: 50px;
            cursor: pointer;
            transition: var(--transition-base);
        }
        .btn-login:hover {
            border-color: var(--sunny-yellow);
            color: var(--sunny-yellow);
            background: rgba(255,215,0,0.05);
        }
        .btn-signup {
            padding: 10px 22px;
            font-size: 0.9rem;
            font-weight: 700;
            color: #0A2E1C;
            background: var(--gold-gradient);
            border: none;
            border-radius: 50px;
            cursor: pointer;
            transition: var(--transition-base);
            box-shadow: var(--shadow-glow);
        }
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(255,204,0,0.45);
        }
        .btn-signup:active {
            transform: translateY(0);
        }
        .mobile-toggle {
            display: none;
            background: rgba(255,255,255,0.08);
            border: 1px solid rgba(255,255,255,0.15);
            color: var(--warm-white);
            width: 44px;
            height: 44px;
            border-radius: 12px;
            cursor: pointer;
            font-size: 1.2rem;
            align-items: center;
            justify-content: center;
            transition: var(--transition-base);
        }
        .mobile-toggle:hover {
            background: rgba(255,215,0,0.15);
            border-color: var(--sunny-yellow);
        }
        .mobile-menu {
            display: none;
            background: rgba(6, 35, 21, 0.98);
            border-top: 1px solid rgba(255,215,0,0.2);
            padding: 16px 0;
        }
        .mobile-menu .nav-links {
            flex-direction: column;
            align-items: stretch;
            gap: 4px;
        }
        .mobile-menu .nav-links a {
            padding: 14px 24px;
            font-size: 1rem;
        }
        /* Hero Section */
        .hero-section {
            padding: 140px 0 80px;
            position: relative;
            overflow: hidden;
            background: linear-gradient(180deg, rgba(6,35,21,0.95) 0%, rgba(11,60,37,0.85) 100%);
            min-height: 85vh;
            display: flex;
            align-items: center;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            opacity: 0.2;
            z-index: 0;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(0deg, var(--deep-teal) 0%, transparent 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .hero-text h1 {
            font-size: 3.2rem;
            font-weight: 900;
            line-height: 1.15;
            color: var(--warm-white);
            margin-bottom: 24px;
            letter-spacing: -0.02em;
        }
        .hero-text h1 .highlight {
            background: var(--gold-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-text .subtitle {
            font-size: 1.2rem;
            color: var(--light-green);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 540px;
        }
        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 36px;
        }
        .badge-item {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.12);
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--light-green);
            font-weight: 500;
        }
        .badge-item i {
            color: var(--sunny-yellow);
            font-size: 0.9rem;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .btn-primary {
            padding: 16px 32px;
            font-size: 1rem;
            font-weight: 700;
            color: #0A2E1C;
            background: var(--gold-gradient);
            border: none;
            border-radius: 50px;
            cursor: pointer;
            transition: var(--transition-base);
            box-shadow: var(--shadow-glow);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(255,204,0,0.5);
        }
        .btn-secondary {
            padding: 16px 32px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--warm-white);
            background: rgba(255,255,255,0.08);
            border: 1px solid rgba(255,255,255,0.2);
            border-radius: 50px;
            cursor: pointer;
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn-secondary:hover {
            background: rgba(255,255,255,0.15);
            border-color: var(--sunny-yellow);
            color: var(--sunny-yellow);
        }
        .hero-panel {
            position: relative;
            z-index: 2;
            background: rgba(255,255,255,0.05);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255,215,0,0.25);
            border-radius: 28px;
            padding: 40px 36px;
            box-shadow: var(--shadow-soft);
        }
        .hero-panel .panel-title {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--sunny-yellow);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .countdown-ring {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            margin-bottom: 28px;
        }
        .ring-item {
            text-align: center;
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: rgba(255,215,0,0.08);
            border: 2px solid rgba(255,215,0,0.4);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.6rem;
            color: var(--sunny-yellow);
            transition: var(--transition-base);
        }
        .ring-item span {
            font-size: 0.7rem;
            font-weight: 500;
            color: var(--light-green);
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }
        .ring-item:hover {
            border-color: var(--sunny-yellow);
            box-shadow: var(--shadow-glow);
        }
        .carousel-dots {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 28px;
        }
        .carousel-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: rgba(255,255,255,0.2);
            cursor: pointer;
            transition: var(--transition-base);
        }
        .carousel-dot.active {
            background: var(--sunny-yellow);
            width: 30px;
            border-radius: 20px;
        }
        .carousel-dot:hover {
            background: rgba(255,215,0,0.5);
        }
        .panel-highlight {
            font-size: 0.95rem;
            color: var(--light-green);
            line-height: 1.7;
            margin-bottom: 24px;
            padding: 16px;
            background: rgba(255,255,255,0.04);
            border-radius: 14px;
            border-left: 3px solid var(--sunny-yellow);
        }
        .btn-reserve {
            width: 100%;
            padding: 16px;
            font-size: 1rem;
            font-weight: 700;
            color: #0A2E1C;
            background: var(--gold-gradient);
            border: none;
            border-radius: 16px;
            cursor: pointer;
            transition: var(--transition-base);
            box-shadow: var(--shadow-glow);
            text-align: center;
        }
        .btn-reserve:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(255,204,0,0.5);
        }
        /* Section Styles */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: rgba(255,255,255,0.03);
            border-top: 1px solid rgba(255,255,255,0.06);
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .section-header {
            margin-bottom: 48px;
            text-align: left;
        }
        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--warm-white);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .section-header p {
            font-size: 1.05rem;
            color: var(--text-silver);
            max-width: 640px;
            line-height: 1.7;
        }
        /* Steps Timeline */
        .steps-container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .step-card {
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: var(--card-radius);
            padding: 28px 24px;
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .step-card:hover {
            border-color: rgba(255,215,0,0.4);
            transform: translateY(-6px);
            box-shadow: var(--shadow-soft);
        }
        .step-number {
            font-size: 2.8rem;
            font-weight: 900;
            color: rgba(255,215,0,0.2);
            position: absolute;
            top: 16px;
            right: 20px;
            line-height: 1;
        }
        .step-icon {
            width: 52px;
            height: 52px;
            background: rgba(255,215,0,0.1);
            border: 1px solid rgba(255,215,0,0.3);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--sunny-yellow);
            margin-bottom: 16px;
        }
        .step-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--warm-white);
            margin-bottom: 10px;
        }
        .step-card p {
            font-size: 0.9rem;
            color: var(--text-silver);
            line-height: 1.6;
        }
        /* Feature Grid */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-item {
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: var(--card-radius);
            padding: 28px;
            transition: var(--transition-base);
        }
        .feature-item:hover {
            border-color: rgba(255,215,0,0.35);
            background: rgba(255,215,0,0.04);
            transform: translateY(-4px);
        }
        .feature-icon {
            font-size: 2rem;
            color: var(--sunny-yellow);
            margin-bottom: 16px;
        }
        .feature-item h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--warm-white);
            margin-bottom: 10px;
        }
        .feature-item p {
            font-size: 0.92rem;
            color: var(--text-silver);
            line-height: 1.65;
        }
        /* Two Column Content */
        .two-col {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .two-col-image {
            border-radius: var(--card-radius);
            overflow: hidden;
            box-shadow: var(--shadow-soft);
            border: 1px solid rgba(255,215,0,0.25);
        }
        .two-col-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 360px;
        }
        .two-col-text h3 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--warm-white);
            margin-bottom: 16px;
        }
        .two-col-text p {
            font-size: 1rem;
            color: var(--text-silver);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .check-list {
            list-style: none;
            margin-top: 20px;
        }
        .check-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 8px 0;
            font-size: 0.95rem;
            color: var(--light-green);
        }
        .check-list li i {
            color: var(--lime-green);
            margin-top: 4px;
        }
        /* FAQ */
        .faq-list {
            max-width: 800px;
        }
        .faq-item {
            border-bottom: 1px solid rgba(255,255,255,0.1);
            margin-bottom: 8px;
        }
        .faq-question {
            padding: 20px 0;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--warm-white);
            transition: var(--transition-base);
            gap: 16px;
        }
        .faq-question:hover {
            color: var(--sunny-yellow);
        }
        .faq-question i {
            font-size: 1rem;
            color: var(--sunny-yellow);
            transition: var(--transition-base);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            font-size: 0.95rem;
            color: var(--text-silver);
            line-height: 1.7;
            padding: 0 40px 0 0;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 20px;
        }
        /* CTA Section */
        .cta-section {
            padding: 100px 0;
            background: linear-gradient(135deg, rgba(255,215,0,0.08) 0%, rgba(255,204,0,0.02) 100%);
            border-top: 1px solid rgba(255,215,0,0.15);
            border-bottom: 1px solid rgba(255,215,0,0.15);
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--warm-white);
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: var(--light-green);
            margin-bottom: 32px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }
        /* Footer */
        .site-footer {
            background: rgba(0,0,0,0.3);
            border-top: 1px solid rgba(255,215,0,0.2);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--sunny-yellow);
            margin-bottom: 16px;
        }
        .footer-column h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--warm-white);
            margin-bottom: 16px;
        }
        .footer-column ul {
            list-style: none;
        }
        .footer-column ul li {
            margin-bottom: 10px;
        }
        .footer-column ul li a {
            font-size: 0.9rem;
            color: var(--text-silver);
            transition: var(--transition-base);
        }
        .footer-column ul li a:hover {
            color: var(--sunny-yellow);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 24px;
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-silver);
        }
        /* FAB */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 90;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(6,35,21,0.9);
            backdrop-filter: blur(10px);
            border: 2px solid rgba(255,215,0,0.5);
            color: var(--sunny-yellow);
            font-size: 1.4rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition-base);
            box-shadow: var(--shadow-glow);
            opacity: 0.7;
            animation: fabBreathe 3s ease-in-out infinite;
        }
        .fab:hover {
            opacity: 1;
            transform: scale(1.1) rotate(360deg);
            box-shadow: 0 8px 30px rgba(255,204,0,0.5);
        }
        .fab:active {
            transform: scale(0.95) translateY(2px);
        }
        .fab-notification {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            background: #D32F2F;
            border-radius: 50%;
            border: 2px solid #0A2E1C;
            animation: blink 1.5s ease-in-out infinite;
        }
        @keyframes fabBreathe {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-text h1 {
                font-size: 2.6rem;
            }
            .steps-container {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .mobile-toggle {
                display: flex;
            }
            .mobile-menu.active {
                display: block;
            }
            .mobile-menu .nav-links {
                display: flex;
            }
            .nav-auth {
                display: none;
            }
            .mobile-auth {
                display: flex;
                gap: 10px;
                padding: 16px 24px;
                border-top: 1px solid rgba(255,255,255,0.1);
            }
            .hero-section {
                padding: 120px 0 60px;
            }
            .hero-text h1 {
                font-size: 2.2rem;
            }
            .hero-text .subtitle {
                font-size: 1rem;
            }
            .steps-container {
                grid-template-columns: 1fr;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .two-col {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .section {
                padding: 60px 0;
            }
            .section-header h2 {
                font-size: 1.8rem;
            }
            .cta-section h2 {
                font-size: 2rem;
            }
            .hero-panel {
                padding: 28px 20px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero-text h1 {
                font-size: 1.8rem;
            }
            .hero-actions {
                flex-direction: column;
            }
            .btn-primary, .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .countdown-ring {
                gap: 12px;
            }
            .ring-item {
                width: 60px;
                height: 60px;
                font-size: 1.2rem;
            }
            .badge-item {
                font-size: 0.75rem;
                padding: 6px 12px;
            }
            .logo {
                font-size: 1rem;
            }
            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 1.1rem;
            }
        }

/* roulang page: article */
:root {
            --deep-ocean: #06121f;
            --abyss-blue: #0a1a2f;
            --ocean-card: #0e2238;
            --cyan-neon: #00f0ff;
            --lime-neon: #ccff00;
            --white: #ffffff;
            --silver: #a6acaf;
            --text-soft: #d1e8f0;
            --border-neon: rgba(0, 240, 255, 0.3);
            --shadow-neon: 0 0 18px rgba(0, 240, 255, 0.35);
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 10px;
            --space-section: 4.5rem;
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--deep-ocean);
            color: var(--white);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        a { color: inherit; text-decoration: none; transition: all 0.25s ease; }
        img { max-width: 100%; display: block; }

        /* NAVBAR */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(6, 18, 31, 0.92);
            backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.12);
            transition: all 0.3s;
        }
        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 0;
            gap: 1.5rem;
        }
        .brand-logo {
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, var(--cyan-neon), var(--lime-neon));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            list-style: none;
            flex-wrap: wrap;
        }
        .nav-links a {
            padding: 0.55rem 1.1rem;
            border-radius: 999px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-soft);
            border: 1px solid transparent;
            transition: all 0.25s;
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--cyan-neon);
            border-color: var(--border-neon);
            background: rgba(0, 240, 255, 0.06);
        }
        .nav-links a.active {
            color: var(--cyan-neon);
            border-color: var(--border-neon);
            background: rgba(0, 240, 255, 0.12);
            box-shadow: 0 0 14px rgba(0, 240, 255, 0.2);
        }
        .nav-auth {
            display: flex;
            align-items: center;
            gap: 0.7rem;
        }
        .btn-login {
            padding: 0.55rem 1.2rem;
            border-radius: 999px;
            font-weight: 700;
            color: var(--text-soft);
            border: 1px solid rgba(166, 172, 175, 0.35);
            background: transparent;
            cursor: pointer;
            transition: all 0.25s;
            white-space: nowrap;
        }
        .btn-login:hover {
            color: var(--white);
            border-color: var(--cyan-neon);
        }
        .btn-signup {
            padding: 0.55rem 1.4rem;
            border-radius: 999px;
            font-weight: 800;
            color: #06121f;
            background: linear-gradient(135deg, var(--cyan-neon), #4df0ff);
            box-shadow: var(--shadow-neon);
            cursor: pointer;
            transition: all 0.3s;
            white-space: nowrap;
        }
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.55);
        }
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--white);
            font-size: 1.6rem;
            cursor: pointer;
        }

        /* ARTICLE CONTENT */
        .article-hero {
            background-image: linear-gradient(rgba(6,18,31,0.75), rgba(6,18,31,0.9)), url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            padding: 5.5rem 0 3rem;
            border-bottom: 1px solid rgba(0, 240, 255, 0.15);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.9rem;
            color: var(--silver);
            margin-bottom: 1.5rem;
            flex-wrap: wrap;
        }
        .breadcrumb a:hover { color: var(--cyan-neon); }
        .breadcrumb .sep { color: var(--cyan-neon); }
        .article-hero h1 {
            font-size: clamp(2rem, 5vw, 3.3rem);
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -0.02em;
            max-width: 900px;
            background: linear-gradient(135deg, #fff 40%, var(--cyan-neon));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            margin-top: 1.2rem;
            color: var(--silver);
            font-size: 0.9rem;
            flex-wrap: wrap;
        }
        .article-meta i { color: var(--cyan-neon); margin-right: 0.35rem; }
        .article-body-wrapper {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 320px;
            gap: 3rem;
            padding: 3.5rem 0 var(--space-section);
            align-items: start;
        }
        .article-main {
            max-width: 720px;
            font-size: 1.08rem;
            color: var(--text-soft);
            line-height: 1.75;
        }
        .article-main p { margin-bottom: 1.4rem; }
        .article-main h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--white);
            margin: 2.2rem 0 1rem;
            letter-spacing: -0.01em;
        }
        .article-main h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--cyan-neon);
            margin: 1.8rem 0 0.8rem;
        }
        .article-main ul, .article-main ol {
            margin: 0 0 1.5rem 1.5rem;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }
        .article-main li::marker { color: var(--cyan-neon); }
        .article-main img {
            border-radius: var(--radius-md);
            margin: 1.8rem 0;
            border: 1px solid rgba(0, 240, 255, 0.2);
            box-shadow: 0 8px 24px rgba(0,0,0,0.4);
        }
        .article-main blockquote {
            border-left: 4px solid var(--cyan-neon);
            padding: 1rem 1.5rem;
            background: rgba(0, 240, 255, 0.06);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.8rem 0;
            font-style: italic;
            color: #d9f4ff;
        }
        .not-found-box {
            background: var(--ocean-card);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-lg);
            padding: 3rem 2rem;
            text-align: left;
            box-shadow: var(--shadow-neon);
        }
        .not-found-box h2 { font-size: 1.8rem; color: var(--white); margin-bottom: 0.8rem; }
        .not-found-box p { color: var(--silver); margin-bottom: 1.5rem; }
        .btn-back-home {
            display: inline-block;
            padding: 0.8rem 2rem;
            border-radius: 999px;
            font-weight: 700;
            background: linear-gradient(135deg, var(--cyan-neon), var(--lime-neon));
            color: #06121f;
            transition: all 0.3s;
        }
        .btn-back-home:hover { transform: translateY(-2px); box-shadow: var(--shadow-neon); }

        /* SIDEBAR */
        .article-sidebar {
            position: sticky;
            top: 100px;
            display: flex;
            flex-direction: column;
            gap: 1.8rem;
        }
        .side-card {
            background: var(--ocean-card);
            border: 1px solid rgba(0, 240, 255, 0.15);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
        }
        .side-card h3 {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--white);
            margin-bottom: 1.2rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .side-card h3 i { color: var(--cyan-neon); }
        .side-game-item {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 0.8rem 0;
            border-bottom: 1px solid rgba(166,172,175,0.1);
        }
        .side-game-item:last-child { border-bottom: none; }
        .side-game-thumb {
            width: 56px;
            height: 56px;
            border-radius: 12px;
            background-size: cover;
            background-position: center;
            border: 1px solid rgba(0, 240, 255, 0.25);
            flex-shrink: 0;
        }
        .side-game-item span { font-weight: 600; font-size: 0.9rem; color: var(--text-soft); }
        .side-game-item small { color: var(--cyan-neon); font-size: 0.8rem; }
        .cta-download-box {
            background: linear-gradient(145deg, #0e2c44, #092033);
            border: 1px solid rgba(0, 240, 255, 0.35);
            border-radius: var(--radius-lg);
            padding: 2rem;
            text-align: left;
            box-shadow: var(--shadow-neon);
        }
        .cta-download-box h3 {
            font-size: 1.4rem;
            font-weight: 800;
            margin-bottom: 0.8rem;
            color: var(--white);
        }
        .cta-download-box p { color: var(--text-soft); font-size: 0.95rem; margin-bottom: 1.4rem; }
        .btn-download-now {
            display: block;
            width: 100%;
            padding: 0.9rem;
            border-radius: 999px;
            font-weight: 800;
            text-align: center;
            background: linear-gradient(135deg, var(--lime-neon), #9ff000);
            color: #06121f;
            font-size: 1rem;
            transition: all 0.3s;
            cursor: pointer;
        }
        .btn-download-now:hover { transform: translateY(-2px); box-shadow: 0 0 24px rgba(204,255,0,0.5); }
        .btn-download-now.secondary {
            background: transparent;
            color: var(--cyan-neon);
            border: 1px solid var(--cyan-neon);
            margin-top: 0.8rem;
        }
        .btn-download-now.secondary:hover { background: rgba(0,240,255,0.1); }

        /* FAB */
        .fab-support {
            position: fixed;
            left: 1.2rem;
            bottom: 6rem;
            z-index: 60;
            width: 58px;
            height: 58px;
            border-radius: 999px;
            background: rgba(6, 18, 31, 0.75);
            backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            border-image: linear-gradient(135deg, var(--cyan-neon), var(--lime-neon)) 1;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--cyan-neon);
            font-size: 1.4rem;
            box-shadow: 0 0 22px rgba(0, 240, 255, 0.45);
            cursor: pointer;
            transition: all 0.3s;
            animation: fabBreath 2.8s ease-in-out infinite;
            min-width: 48px;
            min-height: 48px;
        }
        .fab-support:hover {
            transform: scale(1.12);
            box-shadow: 0 0 34px rgba(0, 240, 255, 0.75);
            color: var(--lime-neon);
        }
        .fab-support .notif-dot {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 16px;
            height: 16px;
            background: #ff0055;
            border-radius: 50%;
            border: 2px solid #06121f;
            animation: blinkDot 1.2s infinite;
        }
        @keyframes fabBreath {
            0%, 100% { opacity: 0.65; transform: scale(1); }
            50% { opacity: 1; transform: scale(1.06); }
        }
        @keyframes blinkDot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.25; }
        }

        /* FOOTER */
        .site-footer {
            background: #040c16;
            border-top: 1px solid rgba(0, 240, 255, 0.15);
            padding: 4rem 0 2rem;
            margin-top: 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 3rem;
        }
        .footer-brand {
            font-size: 1.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--cyan-neon), var(--lime-neon));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 0.8rem;
        }
        .footer-column h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 1rem;
        }
        .footer-column ul { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }
        .footer-column a {
            color: var(--silver);
            font-size: 0.9rem;
            transition: all 0.25s;
        }
        .footer-column a:hover { color: var(--cyan-neon); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(166,172,175,0.15);
            padding-top: 1.8rem;
            text-align: center;
            color: var(--silver);
            font-size: 0.85rem;
        }

        /* RESPONSIVE */
        @media (max-width: 1024px) {
            .article-body-wrapper { grid-template-columns: 1fr; gap: 2.5rem; }
            .article-sidebar { position: static; display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
            .cta-download-box { grid-column: span 2; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(6,18,31,0.98);
                flex-direction: column;
                padding: 1.2rem;
                gap: 0.4rem;
                border-bottom: 1px solid rgba(0,240,255,0.2);
            }
            .nav-links.open { display: flex; }
            .nav-links a { width: 100%; text-align: left; }
            .menu-toggle { display: block; }
            .navbar { flex-wrap: wrap; }
            .nav-auth { margin-left: auto; }
            .article-sidebar { grid-template-columns: 1fr; }
            .cta-download-box { grid-column: auto; }
            .footer-grid { grid-template-columns: 1fr; gap: 1.8rem; }
            .article-hero { padding: 4rem 0 2rem; }
            :root { --space-section: 3rem; }
        }
        @media (max-width: 520px) {
            .brand-logo { font-size: 1.05rem; }
            .btn-login, .btn-signup { padding: 0.5rem 0.9rem; font-size: 0.85rem; }
            .container { padding: 0 16px; }
            .article-main { font-size: 1rem; }
            .article-meta { gap: 0.8rem; font-size: 0.8rem; }
        }

/* roulang page: category2 */
:root {
            --bg-deep: #0B1A30;
            --bg-violet: #0F0C20;
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --border-neon: rgba(0, 240, 255, 0.3);
            --radius-lg: 16px;
            --radius-md: 10px;
            --shadow-glow: 0 0 15px rgba(0, 240, 255, 0.4);
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            background: var(--bg-deep);
            color: var(--text-white);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        
        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(15, 12, 32, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.15);
            transition: var(--transition-base);
        }
        
        .site-header.scrolled {
            background: rgba(11, 26, 48, 0.98);
            border-bottom: 1px solid rgba(0, 240, 255, 0.3);
        }
        
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: var(--text-white);
            font-weight: 700;
            font-size: 1.2rem;
            letter-spacing: -0.02em;
            transition: var(--transition-base);
            flex-shrink: 0;
        }
        
        .logo i {
            color: var(--accent-cyan);
            font-size: 1.6rem;
            filter: drop-shadow(0 0 8px rgba(0, 240, 255, 0.6));
        }
        
        .logo:hover {
            color: var(--accent-lime);
        }
        
        .logo span {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }
        
        .nav-links a {
            color: var(--text-silver);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition-base);
            position: relative;
            padding: 6px 0;
            white-space: nowrap;
        }
        
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-lime));
            transition: var(--transition-base);
            border-radius: 2px;
        }
        
        .nav-links a:hover {
            color: var(--text-white);
        }
        
        .nav-links a:hover::after {
            width: 100%;
        }
        
        .nav-links a.active {
            color: var(--accent-cyan);
            font-weight: 600;
        }
        
        .nav-links a.active::after {
            width: 100%;
        }
        
        .nav-auth {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }
        
        .btn-login {
            color: var(--text-white);
            background: transparent;
            border: none;
            font-size: 0.9rem;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition-base);
            padding: 8px 16px;
        }
        
        .btn-login:hover {
            color: var(--accent-lime);
        }
        
        .btn-signup {
            background: linear-gradient(135deg, var(--accent-cyan), #0099ff);
            color: #000;
            border: none;
            padding: 10px 24px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition-base);
            white-space: nowrap;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
        }
        
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.5);
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
        }
        
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-white);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 8px;
        }
        
        /* ===== Page Banner ===== */
        .page-banner {
            padding: 140px 0 60px;
            background: linear-gradient(135deg, rgba(15, 12, 32, 0.95), rgba(11, 26, 48, 0.9)), url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            position: relative;
            overflow: hidden;
        }
        
        .page-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(circle at 70% 50%, rgba(0, 240, 255, 0.15), transparent 60%);
            pointer-events: none;
        }
        
        .banner-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }
        
        .banner-tag {
            display: inline-block;
            background: rgba(204, 255, 0, 0.15);
            color: var(--accent-lime);
            padding: 6px 18px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
            border: 1px solid rgba(204, 255, 0, 0.3);
        }
        
        .banner-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: -0.03em;
        }
        
        .banner-content h1 .highlight {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .banner-content p {
            font-size: 1.1rem;
            color: var(--text-silver);
            line-height: 1.7;
        }
        
        /* ===== Feature Sections ===== */
        .feature-section {
            padding: 70px 0;
        }
        
        .feature-section.alt-bg {
            background: rgba(15, 12, 32, 0.6);
        }
        
        .section-header {
            margin-bottom: 45px;
        }
        
        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }
        
        .section-header p {
            color: var(--text-silver);
            font-size: 1.05rem;
            max-width: 650px;
            line-height: 1.7;
        }
        
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 28px;
        }
        
        .feature-card {
            background: linear-gradient(145deg, rgba(11, 26, 48, 0.8), rgba(15, 12, 32, 0.9));
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-lg);
            padding: 30px;
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-lime));
            opacity: 0;
            transition: var(--transition-base);
        }
        
        .feature-card:hover {
            border-color: rgba(0, 240, 255, 0.6);
            transform: translateY(-6px);
            box-shadow: 0 12px 30px rgba(0, 240, 255, 0.15);
        }
        
        .feature-card:hover::before {
            opacity: 1;
        }
        
        .feature-icon {
            width: 56px;
            height: 56px;
            background: rgba(0, 240, 255, 0.1);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            border: 1px solid rgba(0, 240, 255, 0.3);
        }
        
        .feature-icon i {
            font-size: 1.6rem;
            color: var(--accent-cyan);
            filter: drop-shadow(0 0 6px rgba(0, 240, 255, 0.5));
        }
        
        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-white);
        }
        
        .feature-card p {
            color: var(--text-silver);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        
        .feature-meta {
            display: flex;
            gap: 16px;
            margin-top: 18px;
            flex-wrap: wrap;
        }
        
        .feature-meta span {
            font-size: 0.8rem;
            color: var(--accent-lime);
            background: rgba(204, 255, 0, 0.1);
            padding: 4px 12px;
            border-radius: 12px;
            border: 1px solid rgba(204, 255, 0, 0.2);
        }
        
        /* ===== Split Feature Section ===== */
        .split-feature {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        
        .split-feature.reverse {
            direction: rtl;
        }
        
        .split-feature.reverse > * {
            direction: ltr;
        }
        
        .split-text h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
        
        .split-text p {
            color: var(--text-silver);
            font-size: 1rem;
            line-height: 1.7;
            margin-bottom: 20px;
        }
        
        .split-text ul {
            list-style: none;
            padding: 0;
        }
        
        .split-text ul li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            margin-bottom: 14px;
            color: var(--text-silver);
            font-size: 0.95rem;
        }
        
        .split-text ul li i {
            color: var(--accent-lime);
            margin-top: 4px;
            font-size: 0.9rem;
        }
        
        .split-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-neon);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
            position: relative;
        }
        
        .split-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            transition: var(--transition-base);
        }
        
        .split-image:hover img {
            transform: scale(1.03);
        }
        
        .split-image .image-badge {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(11, 26, 48, 0.9);
            backdrop-filter: blur(10px);
            color: var(--accent-cyan);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            border: 1px solid rgba(0, 240, 255, 0.3);
        }
        
        /* ===== Stats Section ===== */
        .stats-section {
            background: linear-gradient(135deg, rgba(15, 12, 32, 0.95), rgba(11, 26, 48, 0.95));
            border-top: 1px solid rgba(0, 240, 255, 0.15);
            border-bottom: 1px solid rgba(0, 240, 255, 0.15);
            padding: 50px 0;
        }
        
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 30px;
            text-align: center;
        }
        
        .stat-item h3 {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 6px;
        }
        
        .stat-item p {
            color: var(--text-silver);
            font-size: 0.9rem;
        }
        
        /* ===== FAQ Section ===== */
        .faq-section {
            padding: 70px 0;
        }
        
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .faq-item {
            background: linear-gradient(145deg, rgba(11, 26, 48, 0.7), rgba(15, 12, 32, 0.8));
            border: 1px solid rgba(0, 240, 255, 0.15);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition-base);
        }
        
        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.4);
        }
        
        .faq-question {
            padding: 18px 22px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-white);
            gap: 16px;
        }
        
        .faq-question i {
            color: var(--accent-cyan);
            transition: var(--transition-base);
            flex-shrink: 0;
        }
        
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .faq-item.active .faq-answer {
            max-height: 300px;
        }
        
        .faq-answer-inner {
            padding: 0 22px 20px;
            color: var(--text-silver);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        
        /* ===== CTA Section ===== */
        .cta-section {
            padding: 80px 0;
            text-align: center;
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.08), rgba(204, 255, 0, 0.08));
            border-radius: var(--radius-lg);
            margin: 40px auto;
            max-width: 900px;
            border: 1px solid rgba(0, 240, 255, 0.2);
        }
        
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
        
        .cta-section p {
            color: var(--text-silver);
            font-size: 1.05rem;
            margin-bottom: 30px;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }
        
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--accent-cyan), #0099ff);
            color: #000;
            border: none;
            padding: 14px 36px;
            border-radius: 28px;
            font-size: 1rem;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.35);
        }
        
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 0 40px rgba(0, 240, 255, 0.55);
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
        }
        
        /* ===== Footer ===== */
        .site-footer {
            background: linear-gradient(180deg, rgba(15, 12, 32, 0.95), rgba(11, 26, 48, 0.98));
            border-top: 1px solid rgba(0, 240, 255, 0.15);
            padding: 60px 0 30px;
            margin-top: 60px;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 16px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .footer-column h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-white);
        }
        
        .footer-column ul {
            list-style: none;
            padding: 0;
        }
        
        .footer-column ul li {
            margin-bottom: 10px;
        }
        
        .footer-column ul li a {
            color: var(--text-silver);
            text-decoration: none;
            font-size: 0.9rem;
            transition: var(--transition-base);
        }
        
        .footer-column ul li a:hover {
            color: var(--accent-cyan);
            padding-left: 4px;
        }
        
        .footer-bottom {
            border-top: 1px solid rgba(0, 240, 255, 0.1);
            padding-top: 25px;
            text-align: center;
            color: var(--text-silver);
            font-size: 0.85rem;
            line-height: 1.6;
        }
        
        /* ===== FAB ===== */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 999;
            width: 56px;
            height: 56px;
            background: rgba(11, 26, 48, 0.85);
            backdrop-filter: blur(12px);
            border-radius: 50%;
            border: 2px solid transparent;
            background-clip: padding-box;
            position: relative;
            cursor: pointer;
            transition: var(--transition-base);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0.7;
            animation: fabFloat 3s ease-in-out infinite;
        }
        
        .fab::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            z-index: -1;
            opacity: 0.6;
        }
        
        .fab i {
            color: var(--accent-cyan);
            font-size: 1.5rem;
            filter: drop-shadow(0 0 8px rgba(0, 240, 255, 0.7));
            transition: var(--transition-base);
        }
        
        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.6);
        }
        
        .fab:hover i {
            animation: iconSpin 0.6s ease;
        }
        
        .fab .notification-dot {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 16px;
            height: 16px;
            background: #ff007f;
            border-radius: 50%;
            border: 2px solid var(--bg-deep);
            animation: blinkDot 1.5s ease-in-out infinite;
        }
        
        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
        
        @keyframes iconSpin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        @keyframes blinkDot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        
        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .split-feature {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            
            .split-feature.reverse {
                direction: ltr;
            }
            
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }
        
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(11, 26, 48, 0.98);
                flex-direction: column;
                padding: 20px 24px;
                gap: 16px;
                border-bottom: 1px solid rgba(0, 240, 255, 0.2);
            }
            
            .nav-links.open {
                display: flex;
            }
            
            .mobile-toggle {
                display: block;
            }
            
            .nav-auth {
                gap: 8px;
            }
            
            .btn-login {
                padding: 8px 12px;
                font-size: 0.85rem;
            }
            
            .btn-signup {
                padding: 8px 16px;
                font-size: 0.85rem;
            }
            
            .banner-content h1 {
                font-size: 2rem;
            }
            
            .feature-grid {
                grid-template-columns: 1fr;
            }
            
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            
            .cta-section h2 {
                font-size: 1.6rem;
            }
            
            .fab {
                left: 12px;
                bottom: 80px;
                width: 48px;
                height: 48px;
            }
            
            .fab i {
                font-size: 1.3rem;
            }
        }
        
        @media (max-width: 520px) {
            .nav-container {
                height: 64px;
                padding: 0 16px;
            }
            
            .logo {
                font-size: 1rem;
            }
            
            .logo i {
                font-size: 1.3rem;
            }
            
            .banner-content h1 {
                font-size: 1.6rem;
            }
            
            .banner-content p {
                font-size: 0.95rem;
            }
            
            .section-header h2 {
                font-size: 1.5rem;
            }
            
            .feature-card {
                padding: 20px;
            }
            
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            
            .stat-item h3 {
                font-size: 1.6rem;
            }
            
            .cta-section {
                padding: 40px 20px;
                margin: 20px 16px;
            }
            
            .btn-primary {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
        }