:root{--primary: #4a90d9;--primary-light: #6db3f2;--primary-dark: #357abd;--primary-bg: rgba(74, 144, 217, .08);--success: #52c41a;--warning: #fa8c16;--danger: #d9534f;--text: #1a1a1a;--text-secondary: #555;--text-muted: #999;--border: #e8e8e8;--border-light: #f0f0f0;--bg: #f0f2f5;--bg-white: #fff;--bg-card: #fafafa;--radius-sm: 6px;--radius: 10px;--radius-lg: 14px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .06);--shadow: 0 2px 8px rgba(0, 0, 0, .08);--shadow-lg: 0 4px 16px rgba(0, 0, 0, .1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:14px;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#d0d0d0;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#b0b0b0}