/* roulang page: index */
:root {
            --primary: #1E293B;
            --accent: #0EA5E9;
            --brand-amber: #F59E0B;
            --dark-slate: #0F172A;
            --bg-light: #F8FAFC;
        }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            color: #334155;
            background-color: #F8FAFC;
            line-height: 1.65;
            overflow-x: hidden;
        }
        .text-gradient {
            background: linear-gradient(135deg, #0EA5E9 0%, #38BDF8 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }