:root{--sidebar-width:240px;--header-height:60px;--bg:#f1f5f9;--surface:#fff;--sidebar-bg:#0f172a;--sidebar-text:#94a3b8;--sidebar-active:#6366f1;--text:#0f172a;--text-secondary:#64748b;--text-muted:#94a3b8;--border:#e2e8f0;--primary:#6366f1;--primary-dark:#4f46e5;--success:#10b981;--warning:#f59e0b;--danger:#ef4444;--radius:8px;--shadow:0 1px 3px #0f172a14}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body,#app{height:100%}body{color:var(--text);background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,PingFang SC,Microsoft YaHei,sans-serif;font-size:14px;line-height:1.5}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit;background:0 0;border:none;outline:none}button{cursor:pointer}table{border-collapse:collapse;width:100%}