*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background-color:#f5f5f5;color:#1d1d1f;-webkit-font-smoothing:antialiased}:root{--primary-color: #0066cc;--primary-hover: #0071e3;--text-color: #1d1d1f;--text-muted: #86868b;--bg-color: #ffffff;--bg-alt: #f5f5f7;--border-color: #d2d2d7;--danger-color: #ff3b30;--success-color: #34c759}