/* roulang page: index */
:root {
            --primary: #0F4C81;
            --secondary: #2563EB;
            --accent: #06B6D4;
            --bg-light: #F8FAFC;
            --bg-dark: #0A192F;
            --text-main: #0F172A;
            --text-muted: #475569;
        }
        body {
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
            color: var(--text-main);
            background-color: var(--bg-light);
            overflow-x: hidden;
        }
        .hero-bg {
            background: linear-gradient(135deg, rgba(10, 25, 47, 0.92), rgba(15, 76, 129, 0.88)), url('/assets/images/97e22eedadedd63f.jpg') center/cover no-repeat;
        }
        .infra-bg {
            background: linear-gradient(180deg, #0A192F 0%, #081426 100%);
        }
        .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, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
        }
        .custom-scrollbar::-webkit-scrollbar {
            width: 6px;
            height: 6px;
        }
        .custom-scrollbar::-webkit-scrollbar-thumb {
            background-color: #CBD5E1;
            border-radius: 4px;
        }