/* roulang page: index */
:root {
            --primary: #4F46E5;
            --secondary: #06B6D4;
            --bg-base: #F8FAFC;
            --text-heading: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            background-color: var(--bg-base);
            color: var(--text-body);
            line-height: 1.75;
        }
        .text-gradient {
            background: linear-gradient(135deg, #4F46E5 0%, #06B6D4 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-bg {
            background-image: linear-gradient(rgba(15, 23, 42, 0.88), rgba(15, 23, 42, 0.94)), url('/assets/images/a04a7fb57838119e.png');
            background-size: cover;
            background-position: center;
        }