/* roulang page: index */
:root {
            --brand-navy: #0B192C;
            --brand-slate: #0F172A;
            --brand-emerald: #10B981;
            --brand-cyan: #06B6D4;
            --brand-bg: #F8FAFC;
        }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            color: #0F172A;
            background-color: #FFFFFF;
            overflow-x: hidden;
        }
        .hero-pattern {
            background-image: linear-gradient(135deg, rgba(11, 25, 44, 0.92) 0%, rgba(15, 23, 42, 0.95) 100%), url('/assets/images/efe3a2e4d5b69737.png');
            background-size: cover;
            background-position: center;
        }
        .card-glow:hover {
            box-shadow: 0 10px 25px -5px rgba(6, 182, 212, 0.15), 0 8px 10px -6px rgba(16, 185, 129, 0.1);
        }
        .smooth-scroll {
            scroll-behavior: smooth;
        }