/* roulang page: index */
:root {
            --primary: #0F52BA;
            --primary-light: #0066FF;
            --accent: #00C288;
            --midnight: #0A192F;
            --slate-base: #F8FAFC;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--slate-base);
            color: #334155;
            overflow-x: hidden;
        }
        .hero-bg-overlay {
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.95) 0%, rgba(15, 82, 186, 0.88) 100%), url('/assets/images/646381b2652e1e95.jpg') center/cover no-repeat;
        }
        .glass-card {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(226, 232, 240, 0.8);
        }
        .card-hover-effect {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card-hover-effect:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 25px -5px rgba(15, 82, 186, 0.1), 0 10px 10px -5px rgba(15, 82, 186, 0.04);
        }
        .btn-glow {
            box-shadow: 0 4px 14px 0 rgba(0, 102, 255, 0.39);
        }
        .btn-glow:hover {
            box-shadow: 0 6px 20px rgba(0, 102, 255, 0.55);
        }