/* roulang page: index */
:root {
            --primary-grad: linear-gradient(135deg, #4F46E5 0%, #06B6D4 100%);
            --gold-grad: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
            --cyber-dark: #0B0F19;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
            color: #1E293B;
            background-color: #F8FAFC;
        }
        .text-gradient {
            background: linear-gradient(135deg, #6366F1 0%, #06B6D4 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .text-gradient-gold {
            background: linear-gradient(135deg, #FDE68A 0%, #F59E0B 50%, #D97706 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-mesh {
            background-color: #080D1A;
            background-image: 
                radial-gradient(at 0% 0%, rgba(79, 70, 229, 0.25) 0px, transparent 50%),
                radial-gradient(at 100% 100%, rgba(6, 182, 212, 0.2) 0px, transparent 50%),
                linear-gradient(rgba(11, 15, 25, 0.88), rgba(11, 15, 25, 0.95)),
                url('/assets/images/f5f0bb59a769d907.jpg');
            background-size: cover;
            background-position: center;
        }
        .gold-border-card {
            background: linear-gradient(180deg, rgba(30, 41, 59, 0.85) 0%, rgba(15, 23, 42, 0.95) 100%);
            border: 1px solid rgba(245, 158, 11, 0.25);
            box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(254, 243, 199, 0.1);
        }
        .pulse-dot {
            animation: pulse-ring 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
        }
        @keyframes pulse-ring {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.4; transform: scale(1.15); }
        }