/* roulang page: index */
:root {
            --primary: #1E3A8A;
            --primary-dark: #0F172A;
            --mint: #10B981;
            --bg-light: #F8FAFC;
            --border-light: #E2E8F0;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Noto Sans", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
            color: #334155;
            background-color: var(--bg-light);
            text-rendering: optimizeLegibility;
            -webkit-font-smoothing: antialiased;
        }
        .bento-hero-bg {
            background-image: linear-gradient(rgba(15, 23, 42, 0.88), rgba(30, 58, 138, 0.92)), url('/assets/images/efdee93e9ba626a1.jpg');
            background-size: cover;
            background-position: center;
        }
        .deep-space-bg {
            background-image: linear-gradient(rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0.95)), url('/assets/images/8fa362b0cc2edbd4.png');
            background-size: cover;
            background-position: center;
        }
        .cta-banner-bg {
            background-image: linear-gradient(rgba(15, 23, 42, 0.94), rgba(30, 58, 138, 0.92)), url('/assets/images/9af55313e8fff2a8.jpg');
            background-size: cover;
            background-position: center;
        }
        .card-hover-effect {
            transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .card-hover-effect:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 32px -8px rgba(15, 23, 42, 0.12);
        }