/* roulang page: index */
:root {
            --primary: #1A56DB;
            --primary-dark: #0E2A5E;
            --bg-page: #F8FAFC;
            --text-main: #0F172A;
            --text-muted: #475569;
            --border-line: #E2E8F0;
        }
        body {
            background-color: var(--bg-page);
            color: var(--text-main);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            -webkit-font-smoothing: antialiased;
        }
        .code-block {
            background-color: #0b1329;
            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
        }
        details summary::-webkit-details-marker {
            display: none;
        }