/* roulang page: index */
:root {
            --primary: #0F52BA;
            --accent: #00A86B;
            --warning: #E65100;
            --dark-navy: #0B192C;
            --slate-base: #1E293B;
            --bg-light: #F8FAFC;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: #334155;
            background-color: #FFFFFF;
            line-height: 1.75;
        }
        .hero-bg-overlay {
            background: linear-gradient(135deg, rgba(11, 25, 44, 0.92) 0%, rgba(15, 82, 186, 0.82) 100%);
        }
        .glass-card {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            border: 1px solid #E2E8F0;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .glass-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 24px -8px rgba(15, 82, 186, 0.15);
            border-color: #BFDBFE;
        }
        .dark-glass-card {
            background: rgba(30, 41, 59, 0.85);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .dark-glass-card:hover {
            border-color: #00A86B;
            transform: translateY(-3px);
        }