/* roulang page: index */
:root {
            --primary: #0F52BA;
            --accent: #0070F3;
            --bg-light: #F8FAFC;
            --text-main: #1E293B;
            --text-muted: #64748B;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--text-main);
            background-color: var(--bg-light);
            overflow-x: hidden;
        }
        .hero-bg {
            background-image: linear-gradient(rgba(11, 19, 43, 0.88), rgba(15, 82, 186, 0.82)), url('/assets/images/68972384deb5d376.jpg');
            background-size: cover;
            background-position: center;
        }
        .sub-bg-pattern {
            background-image: radial-gradient(#e2e8f0 1.2px, transparent 1.2px);
            background-size: 24px 24px;
        }
        .custom-scrollbar::-webkit-scrollbar {
            width: 6px;
            height: 6px;
        }
        .custom-scrollbar::-webkit-scrollbar-thumb {
            background: #cbd5e1;
            border-radius: 4px;
        }