/* roulang page: index */
:root {
            --primary: #0284c7;
            --accent: #f97316;
            --dark: #0f172a;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: #f8fafc;
            color: #334155;
            line-height: 1.75;
        }
        .text-balance {
            text-wrap: balance;
        }
        .hero-overlay {
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.95) 0%, rgba(15, 23, 42, 0.82) 50%, rgba(2, 132, 199, 0.75) 100%);
        }
        .glass-card {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(226, 232, 240, 0.8);
        }
        .dark-glass-card {
            background: rgba(30, 41, 59, 0.75);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(51, 65, 85, 0.6);
        }