/* roulang page: index */
:root {
            --primary: #0A2540;
            --accent: #0066F5;
            --teal-accent: #00D4B2;
            --dark-surface: #06182C;
            --light-surface: #F8FAFC;
            --text-main: #1E293B;
            --text-muted: #64748B;
        }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            color: var(--text-main);
            background-color: #ffffff;
            overflow-x: hidden;
        }
        .text-balance {
            text-wrap: balance;
        }
        .glass-nav {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .hero-bg-overlay {
            background: linear-gradient(135deg, rgba(10, 37, 64, 0.95) 0%, rgba(6, 24, 44, 0.88) 100%);
        }
        .hero-pattern {
            background-image: radial-gradient(rgba(0, 212, 178, 0.15) 1px, transparent 1px);
            background-size: 28px 28px;
        }