/* roulang page: index */
:root {
            --bg-primary: #0F0C20;
            --bg-secondary: #0B1A30;
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --border-neon: rgba(0, 240, 255, 0.25);
            --radius-card: 16px;
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-lime: 0 0 12px rgba(204, 255, 0, 0.35);
            --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: 'Inter', 'Segoe UI', system-ui, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-base);
        }
        button {
            cursor: pointer;
            font-family: inherit;
            transition: var(--transition-base);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .glass-card {
            background: rgba(15, 12, 32, 0.7);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(0, 240, 255, 0.18);
            border-radius: var(--radius-card);
        }
        .neon-btn {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            color: #0B1A30;
            font-weight: 700;
            padding: 14px 32px;
            border-radius: 50px;
            border: none;
            letter-spacing: 0.5px;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
            transition: var(--transition-base);
            text-transform: uppercase;
            font-size: 0.95rem;
        }
        .neon-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 0 35px rgba(204, 255, 0, 0.6);
        }
        .neon-btn:active {
            transform: translateY(0);
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
        }
        .ghost-btn {
            background: transparent;
            color: var(--accent-cyan);
            font-weight: 600;
            padding: 14px 28px;
            border-radius: 50px;
            border: 2px solid var(--accent-cyan);
            transition: var(--transition-base);
            text-transform: uppercase;
            font-size: 0.95rem;
            letter-spacing: 0.5px;
        }
        .ghost-btn:hover {
            background: rgba(0, 240, 255, 0.1);
            box-shadow: var(--shadow-neon);
            transform: translateY(-2px);
        }
        .nav-link {
            position: relative;
            font-weight: 500;
            color: var(--text-silver);
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 0.95rem;
            transition: var(--transition-base);
        }
        .nav-link:hover {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
        }
        .nav-link.active {
            color: var(--accent-lime);
            background: rgba(204, 255, 0, 0.08);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background: var(--accent-lime);
            border-radius: 3px;
        }
        .fab-cyber {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.4rem;
            box-shadow: 0 0 18px rgba(0, 240, 255, 0.45);
            transition: var(--transition-base);
            opacity: 0.65;
            animation: breatheFAB 3s infinite ease-in-out;
        }
        .fab-cyber:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(204, 255, 0, 0.7);
            color: var(--accent-lime);
        }
        .fab-cyber:active {
            transform: scale(0.95);
        }
        @keyframes breatheFAB {
            0%, 100% { box-shadow: 0 0 15px rgba(0, 240, 255, 0.4); }
            50% { box-shadow: 0 0 25px rgba(204, 255, 0, 0.6); }
        }
        .timeline-item {
            position: relative;
            padding-left: 32px;
            margin-bottom: 28px;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 8px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent-cyan);
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.6);
        }
        .timeline-item::after {
            content: '';
            position: absolute;
            left: 6px;
            top: 28px;
            width: 2px;
            height: calc(100% + 8px);
            background: linear-gradient(to bottom, rgba(0, 240, 255, 0.5), transparent);
        }
        .timeline-item:last-child::after {
            display: none;
        }
        .vertical-card {
            background: rgba(11, 26, 48, 0.8);
            border: 1px solid rgba(0, 240, 255, 0.2);
            border-radius: 16px;
            overflow: hidden;
            transition: var(--transition-base);
        }
        .vertical-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-neon);
            transform: translateY(-5px);
        }
        .ranking-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
            transition: var(--transition-base);
        }
        .ranking-row:last-child {
            border-bottom: none;
        }
        .ranking-row:hover {
            background: rgba(0, 240, 255, 0.06);
        }
        .faq-item {
            border-bottom: 1px solid rgba(0, 240, 255, 0.15);
            padding: 20px 0;
        }
        .faq-question {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--accent-cyan);
            margin-bottom: 10px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .faq-answer {
            color: var(--text-silver);
            line-height: 1.7;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .section-desc {
            color: var(--text-silver);
            font-size: 1.05rem;
            line-height: 1.7;
            max-width: 720px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .nav-desktop {
                display: none;
            }
            .mobile-menu {
                display: block;
            }
            .neon-btn, .ghost-btn {
                padding: 12px 22px;
                font-size: 0.85rem;
            }
            .fab-cyber {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                left: 12px;
                bottom: 80px;
            }
        }
        @media (min-width: 769px) {
            .mobile-menu {
                display: none;
            }
            .nav-desktop {
                display: flex;
            }
        }
        @media (max-width: 520px) {
            .section-title {
                font-size: 1.4rem;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .container {
                padding: 0 12px;
            }
        }

/* roulang page: article */
:root {
            --cyber-violet: #0F0C20;
            --ocean-blue: #0B1A30;
            --neon-lime: #CCFF00;
            --neon-cyan: #00F0FF;
            --silver-gray: #A6ACAF;
            --text-white: #FFFFFF;
            --glass-bg: rgba(255, 255, 255, 0.04);
            --glass-border: rgba(0, 240, 255, 0.18);
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-lime: 0 0 15px rgba(204, 255, 0, 0.4);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        html {
            scroll-behavior: smooth;
        }
        
        body {
            font-family: 'Segoe UI', 'Inter', -apple-system, BlinkMacSystemFont, 'Roboto', sans-serif;
            background: linear-gradient(135deg, var(--cyber-violet) 0%, var(--ocean-blue) 50%, var(--cyber-violet) 100%);
            color: var(--text-white);
            line-height: 1.65;
            min-height: 100vh;
            overflow-x: hidden;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        
        .nav-link {
            position: relative;
            padding: 8px 16px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--silver-gray);
            transition: color 0.3s ease;
            text-decoration: none;
            white-space: nowrap;
        }
        
        .nav-link:hover {
            color: var(--neon-cyan);
        }
        
        .nav-link.active {
            color: var(--neon-cyan);
        }
        
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--neon-cyan);
            border-radius: 2px;
            box-shadow: var(--shadow-neon);
        }
        
        .neon-btn {
            display: inline-block;
            background: linear-gradient(135deg, var(--neon-cyan) 0%, #00B8CC 100%);
            color: var(--cyber-violet);
            font-weight: 700;
            border-radius: 50px;
            padding: 12px 28px;
            text-decoration: none;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-neon);
            border: none;
            cursor: pointer;
            letter-spacing: 0.3px;
        }
        
        .neon-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.7);
        }
        
        .neon-btn:active {
            transform: translateY(0);
            box-shadow: var(--shadow-neon);
        }
        
        .neon-btn:focus-visible {
            outline: 3px solid var(--neon-lime);
            outline-offset: 2px;
        }
        
        .mobile-menu {
            display: none;
        }
        
        .mobile-menu-toggle {
            display: none;
        }
        
        .article-content {
            font-size: 1.05rem;
            line-height: 1.75;
            color: #D1D5DB;
        }
        
        .article-content h2 {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--neon-cyan);
            margin: 2.5rem 0 1rem;
            padding-left: 1rem;
            border-left: 4px solid var(--neon-cyan);
            text-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
        }
        
        .article-content h3 {
            font-size: 1.35rem;
            font-weight: 600;
            color: var(--neon-lime);
            margin: 2rem 0 0.8rem;
        }
        
        .article-content p {
            margin-bottom: 1.2rem;
        }
        
        .article-content ul, .article-content ol {
            margin: 1rem 0 1.5rem 1.5rem;
        }
        
        .article-content ul li, .article-content ol li {
            margin-bottom: 0.6rem;
            position: relative;
        }
        
        .article-content ul li::before {
            content: '◆';
            color: var(--neon-cyan);
            position: absolute;
            left: -1.5rem;
            font-size: 0.7rem;
            top: 0.5rem;
        }
        
        .article-content blockquote {
            background: var(--glass-bg);
            border-left: 4px solid var(--neon-cyan);
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: #E5E7EB;
            font-style: italic;
        }
        
        .article-content img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-lg);
            margin: 1.5rem 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }
        
        .article-content a {
            color: var(--neon-cyan);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        
        .article-content a:hover {
            color: var(--neon-lime);
        }
        
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.95rem;
        }
        
        .article-content table th,
        .article-content table td {
            padding: 12px 16px;
            border: 1px solid rgba(0, 240, 255, 0.15);
            text-align: left;
        }
        
        .article-content table th {
            background: rgba(0, 240, 255, 0.1);
            color: var(--neon-cyan);
            font-weight: 600;
        }
        
        .article-content table tr:nth-child(even) {
            background: rgba(255, 255, 255, 0.03);
        }
        
        .glass-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: all 0.3s ease;
        }
        
        .glass-card:hover {
            border-color: rgba(0, 240, 255, 0.4);
            box-shadow: 0 8px 30px rgba(0, 240, 255, 0.15);
        }
        
        .fab-left {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(8px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), linear-gradient(135deg, var(--neon-lime), var(--neon-cyan));
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--neon-cyan);
            font-size: 1.5rem;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-neon);
            opacity: 0.6;
            text-decoration: none;
        }
        
        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.7);
        }
        
        .fab-left:active {
            transform: scale(0.95);
        }
        
        @media (max-width: 1024px) {
            .container {
                padding: 0 20px;
            }
        }
        
        @media (max-width: 768px) {
            .nav-desktop {
                display: none !important;
            }
            
            .mobile-menu-toggle {
                display: block !important;
            }
            
            .mobile-menu.active {
                display: block !important;
            }
            
            .mobile-menu {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--cyber-violet);
                border-top: 1px solid rgba(0, 240, 255, 0.2);
                padding: 16px 24px;
                z-index: 50;
            }
            
            .mobile-menu .nav-link {
                display: block;
                padding: 12px 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }
            
            .article-content {
                font-size: 0.98rem;
            }
            
            .article-content h2 {
                font-size: 1.4rem;
            }
            
            .article-content h3 {
                font-size: 1.15rem;
            }
            
            .fab-left {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                left: 0.75rem;
                bottom: 5rem;
            }
        }
        
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            
            .article-content {
                font-size: 0.92rem;
            }
            
            .article-content h2 {
                font-size: 1.25rem;
                padding-left: 0.75rem;
            }
            
            .article-content h3 {
                font-size: 1.05rem;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0F0C20;
            --bg-secondary: #0B1A30;
            --accent-cyan: #00F0FF;
            --accent-lime: #CCFF00;
            --text-white: #FFFFFF;
            --text-gray: #A6ACAF;
            --border-glow: rgba(0, 240, 255, 0.2);
            --border-lime: rgba(204, 255, 0, 0.3);
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-card-hover: 0 0 30px rgba(0, 240, 255, 0.25);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Be Vietnam Pro', 'Inter', system-ui, sans-serif;
            background: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

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

        .nav-link {
            padding: 10px 18px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-gray);
            text-decoration: none;
            border-radius: 8px;
            transition: all 0.3s ease;
            position: relative;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
        }

        .nav-link.active {
            color: var(--accent-lime);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 18px;
            right: 18px;
            height: 2px;
            background: var(--accent-lime);
            border-radius: 2px;
            box-shadow: 0 0 10px var(--accent-lime);
        }

        .neon-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: linear-gradient(135deg, #00F0FF 0%, #CCFF00 100%);
            color: #0F0C20;
            font-weight: 700;
            border-radius: 12px;
            text-decoration: none;
            transition: all 0.3s ease;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.35);
            cursor: pointer;
            border: none;
        }

        .neon-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.55);
        }

        .neon-btn:active {
            transform: translateY(0) scale(0.98);
        }

        .ghost-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--accent-cyan);
            font-weight: 600;
            border-radius: 12px;
            text-decoration: none;
            transition: all 0.3s ease;
            border: 1.5px solid rgba(0, 240, 255, 0.4);
            cursor: pointer;
        }

        .ghost-btn:hover {
            background: rgba(0, 240, 255, 0.1);
            border-color: var(--accent-cyan);
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.25);
        }

        .glass-card {
            background: rgba(255, 255, 255, 0.04);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            transition: all 0.4s ease;
        }

        .glass-card:hover {
            border-color: rgba(0, 240, 255, 0.35);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .stat-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }

        .badge-hot {
            background: rgba(255, 0, 127, 0.15);
            color: #FF79C6;
            border: 1px solid rgba(255, 0, 127, 0.35);
        }

        .badge-cyan {
            background: rgba(0, 240, 255, 0.12);
            color: var(--accent-cyan);
            border: 1px solid rgba(0, 240, 255, 0.3);
        }

        .badge-lime {
            background: rgba(204, 255, 0, 0.12);
            color: var(--accent-lime);
            border: 1px solid rgba(204, 255, 0, 0.3);
        }

        .section-title {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin-bottom: 12px;
        }

        .section-sub {
            font-size: 1.05rem;
            color: var(--text-gray);
            line-height: 1.7;
            max-width: 720px;
        }

        .fab-neon {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(15, 12, 32, 0.7);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(15, 12, 32, 0.8), rgba(15, 12, 32, 0.8)), linear-gradient(135deg, #CCFF00, #00F0FF);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.4rem;
            cursor: pointer;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            transition: all 0.3s ease;
            opacity: 0.7;
            animation: fabFloat 3s ease-in-out infinite;
        }

        .fab-neon:hover {
            opacity: 1;
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.8);
            transform: scale(1.1);
        }

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

        .fab-neon::after {
            content: '';
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: #FF007F;
            border: 2px solid #0F0C20;
            animation: blinkDot 1.8s ease-in-out infinite;
        }

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

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

        @keyframes pulseGlow {
            0%, 100% { box-shadow: 0 0 15px rgba(0, 240, 255, 0.4); }
            50% { box-shadow: 0 0 30px rgba(0, 240, 255, 0.7); }
        }

        .pulse-glow {
            animation: pulseGlow 2.5s ease-in-out infinite;
        }

        .mobile-menu {
            display: none;
        }

        .mobile-menu.active {
            display: block;
        }

        .mobile-menu-toggle {
            display: none;
        }

        @media (max-width: 1024px) {
            .container {
                padding: 0 20px;
            }
            .nav-desktop {
                gap: 4px;
            }
            .nav-link {
                padding: 8px 12px;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .mobile-menu.active {
                display: block;
            }
            .container {
                padding: 0 16px;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .fab-neon {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                left: 12px;
                bottom: 80px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 12px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .nav-link {
                font-size: 0.78rem;
                padding: 6px 10px;
            }
        }

/* roulang page: category2 */
@import url('/assets/css/vendor/9723b7396f-css2.css');
        
        :root {
            --bg-primary: #0F0C20;
            --bg-secondary: #0B1A30;
            --accent-cyan: #00F0FF;
            --accent-lime: #CCFF00;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --border-glow: rgba(0, 240, 255, 0.25);
            --shadow-neon: 0 0 20px rgba(0, 240, 255, 0.35);
            --shadow-neon-strong: 0 0 40px rgba(0, 240, 255, 0.55);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
        }
        
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        body {
            font-family: 'Be Vietnam Pro', Inter, system-ui, sans-serif;
            background: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.65;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        
        .nav-link {
            position: relative;
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-silver);
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
        }
        
        .nav-link:hover {
            color: var(--accent-cyan);
        }
        
        .nav-link.active {
            color: var(--accent-lime);
            font-weight: 600;
        }
        
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--accent-lime);
            box-shadow: 0 0 10px var(--accent-lime);
            border-radius: 2px;
        }
        
        .neon-btn {
            display: inline-block;
            background: linear-gradient(135deg, #00F0FF 0%, #00B8D4 100%);
            color: #0F0C20;
            font-weight: 700;
            border-radius: 50px;
            border: none;
            cursor: pointer;
            transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            text-decoration: none;
            text-align: center;
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.4);
            position: relative;
            overflow: hidden;
        }
        
        .neon-btn:hover {
            background: linear-gradient(135deg, #CCFF00 0%, #A8D600 100%);
            box-shadow: 0 0 45px rgba(204, 255, 0, 0.6);
            transform: translateY(-2px);
        }
        
        .neon-btn:active {
            transform: translateY(1px);
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
        }
        
        .glass-card {
            background: rgba(255, 255, 255, 0.04);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .glass-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 8px 32px rgba(0, 240, 255, 0.2);
            transform: translateY(-4px);
        }
        
        .glow-border {
            position: relative;
        }
        
        .glow-border::before {
            content: '';
            position: absolute;
            inset: -1px;
            border-radius: inherit;
            padding: 1px;
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.5), rgba(204, 255, 0, 0.5));
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            pointer-events: none;
        }
        
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
        
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-silver);
            line-height: 1.7;
            margin-bottom: 40px;
        }
        
        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(15, 12, 32, 0.7);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
            animation: floatBreath 3s ease-in-out infinite;
            position: relative;
        }
        
        .fab-left::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 50%;
            padding: 2px;
            background: linear-gradient(135deg, #00F0FF, #CCFF00);
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            pointer-events: none;
        }
        
        .fab-left:hover {
            opacity: 1;
            box-shadow: 0 0 35px rgba(0, 240, 255, 0.7);
            transform: scale(1.1);
        }
        
        .fab-left:active {
            transform: scale(0.95);
        }
        
        @keyframes floatBreath {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        
        .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 16px;
            height: 16px;
            background: #FF007F;
            border-radius: 50%;
            border: 2px solid #0F0C20;
            animation: blinkNotif 1.5s ease-in-out infinite;
        }
        
        @keyframes blinkNotif {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            
            .section-title {
                font-size: 1.7rem;
            }
            
            .section-subtitle {
                font-size: 0.95rem;
            }
            
            .nav-desktop {
                display: none !important;
            }
            
            .mobile-menu-toggle {
                display: block !important;
            }
            
            .mobile-menu {
                display: none;
            }
            
            .mobile-menu.open {
                display: block;
            }
        }
        
        @media (min-width: 769px) {
            .mobile-menu-toggle {
                display: none !important;
            }
            
            .mobile-menu {
                display: none !important;
            }
        }
        
        @media (max-width: 520px) {
            .section-title {
                font-size: 1.4rem;
            }
            
            .fab-left {
                width: 48px;
                height: 48px;
                left: 12px;
                bottom: 80px;
            }
        }
        
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
            border-radius: 4px;
        }