:root{--bg: #fafafa;--bg-card: #ffffff;--bg-sidebar: #111113;--bg-hover: #f5f5f5;--bg-code: #f4f4f5;--text: #18181b;--text-2: #71717a;--text-3: #a1a1aa;--text-inv: #fafafa;--text-inv-2: #a1a1aa;--accent: #18181b;--accent-fg: #fafafa;--green: #22c55e;--green-bg: #f0fdf4;--red: #ef4444;--border: #e4e4e7;--border-dark: #27272a;--radius: 6px;--sidebar-w: 240px;--shadow-sm: 0 1px 2px rgba(0,0,0,.04);--shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);--font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--mono: "SF Mono", "Fira Code", "Menlo", monospace}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font);background:var(--bg);color:var(--text);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}.layout{display:flex;height:100vh;overflow:hidden}.sidebar{width:var(--sidebar-w);min-width:var(--sidebar-w);background:var(--bg-sidebar);display:flex;flex-direction:column;border-right:1px 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