:root{--primary: #2563eb;--primary-hover: #3b82f6;--secondary: #7c3aed;--bg: #f0f2f5;--text: #1a1a2e;--text-secondary: #6b7280;--text-muted: #9ca3af;--card-bg: #ffffff;--border: #e5e7eb;--radius: 8px}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;font-family:-apple-system,PingFang SC,Microsoft YaHei,sans-serif;font-size:14px;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}#app{height:100%}a{color:var(--primary);text-decoration:none}a:hover{color:var(--primary-hover)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#d1d5db;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#9ca3af}