:root{--blue: #2f6bd6;--blue-600: #2559bd;--blue-50: #eaf1fc;--blue-100: #d8e6fb;--bg: #f5f8fd;--surface: #ffffff;--ink: #1e2a3a;--muted: #6b7a90;--line: #e6ecf5;--ok: #1f9d6b;--ok-bg: #e7f6ef;--warn: #b7791f;--warn-bg: #fdf3e0;--danger: #d6485f;--danger-bg: #fdecef;--mint: #e6f7f0;--amber: #fff4e0;--lilac: #efeafe;--shadow: 0 1px 2px rgba(20, 40, 80, .04), 0 6px 20px rgba(20, 40, 80, .06);--radius: 12px}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased}a{color:var(--blue)}h1{font-size:20px;margin:0;font-weight:700}h2{font-size:16px;margin:0 0 12px;font-weight:650}h3{font-size:13px;margin:0 0 4px;font-weight:650}.shell{display:grid;grid-template-columns:248px 1fr;min-height:100vh}.sidebar{background:linear-gradient(180deg,#fff,#fbfdff);border-right:1px solid var(--line);padding:18px 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