/* roulang page: index */
:root {
            --primary-dark: #0B0E14;
            --surface-card: #121824;
            --neon-green: #00F59B;
            --neon-blue: #00D2FF;
            --text-main: #0F172A;
            --text-sub: #475569;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: #F8FAFC;
            color: var(--text-main);
            overflow-x: hidden;
        }
        .hero-pattern {
            background-color: #0B0E14;
            background-image: radial-gradient(rgba(0, 245, 155, 0.08) 1px, transparent 1px), radial-gradient(rgba(0, 210, 255, 0.05) 1px, #0B0E14 1px);
            background-size: 36px 36px;
            background-position: 0 0, 18px 18px;
        }
        .glass-panel {
            background: rgba(18, 24, 36, 0.75);
            backdrop-filter: blur(16px);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .glow-border:hover {
            border-color: rgba(0, 245, 155, 0.5);
            box-shadow: 0 0 20px rgba(0, 245, 155, 0.15);
        }