:root{--primary: #4F46E5;--primary-light: #EEF2FF;--primary-hover: #4338CA;--bg: #FFFFFF;--bg-secondary: #F8F9FA;--bg-sidebar: #F3F4F6;--border: #E5E7EB;--text: #1F2937;--text-secondary: #6B7280;--text-muted: #9CA3AF;--online: #10B981;--warning: #F59E0B;--error: #EF4444;--rail-bg: #1E1B4B;--radius: 8px;--radius-lg: 12px;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:14px;color:var(--text);background:var(--bg)}textarea:focus,input:focus,select:focus{outline:2px solid var(--primary);outline-offset:0;border-color:var(--primary)!important}textarea{font-family:inherit}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}