/* roulang page: index */
:root {
            --primary: #4F46E5;
            --primary-dark: #4338CA;
            --accent: #06B6D4;
            --bg-light: #F8FAFC;
            --text-main: #0F172A;
            --text-muted: #64748B;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-light);
            color: var(--text-main);
            scroll-behavior: smooth;
        }
        .code-font {
            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
        }
        .hero-mesh {
            background-image: radial-gradient(rgba(79, 70, 229, 0.12) 1px, transparent 0), radial-gradient(rgba(6, 182, 212, 0.08) 1px, transparent 0);
            background-size: 32px 32px;
            background-position: 0 0, 16px 16px;
        }
        details summary::-webkit-details-marker {
            display: none;
        }