:root{--color-primary: #1677ff;--color-primary-light: #4096ff;--color-primary-dark: #0958d9;--color-bg: #f5f7fa;--color-surface: #ffffff;--color-text: #1f2937;--color-text-secondary: #6b7280;--color-border: #e5e7eb;--color-success: #52c41a;--color-warning: #faad14;--color-danger: #ff4d4f;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .06);--shadow-md: 0 4px 12px rgba(0, 0, 0, .08);--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--sidebar-width: 280px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft 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