/* roulang page: index */
:root {
            --primary: #10B981;
            --primary-hover: #059669;
            --accent: #F97316;
            --dark: #0F172A;
            --light: #F8FAFC;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: #334155;
            background-color: #FAFAFA;
        }
        .hero-pattern {
            background-image: radial-gradient(rgba(16, 185, 129, 0.08) 1px, transparent 1px);
            background-size: 24px 24px;
        }
        .glass-nav {
            background: rgba(15, 23, 42, 0.92);
            backdrop-filter: blur(12px);
        }
        .card-hover {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card-hover:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
        }