:root{--primary: #2563eb;--primary-dark: #1d4ed8;--primary-soft: #dbeafe;--accent: #0f172a;--bg: #f5f7fb;--card: #ffffff;--border: #e5e7eb;--border-strong: #d1d5db;--text: #111827;--text-2: #374151;--muted: #6b7280;--muted-soft: #9ca3af;--ok: #16a34a;--ok-bg: #dcfce7;--err: #dc2626;--err-bg: #fee2e2;--warn: #d97706;--warn-bg: #fef3c7;--chip-bg: #f3f4f6;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--shadow-sm: 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 20px rgba(0,0,0,.06);--shadow-lg: 0 10px 40px rgba(0,0,0,.08);--sidebar-w: 224px;--topbar-h: 56px}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}code{background:var(--chip-bg);padding:2px 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