:root{--bg-page:#f3f4f8;--bg-side:#f7f8fb;--bg-card:#fff;--bg-soft:#eef2ff;--bg-blue-hint:#eff6ff;--bg-input:#fff;--bg-input-soft:#f7f8fb;--text-main:#111827;--text-muted:#5f6778;--text-soft:#7b8496;--text-on-primary:#fff;--border:#dfe3eb;--border-strong:#cdd4df;--primary:#635bff;--primary-dark:#4f46e5;--primary-soft:#ecebff;--primary-line:rgba(99,91,255,.18);--danger:#ef4444;--danger-soft:#fee2e2;--danger-line:rgba(239,68,68,.32);--success:#10b981;--success-soft:#d1fae5;--warning:#f59e0b;--warning-soft:#fef3c7;--info:#0ea5e9;--info-soft:#e0f2fe;--gradient:linear-gradient(135deg,#5b6cff,#8b5cf6);--radius:8px;--radius-lg:12px;--radius-sm:4px;--tab-h:48px;--font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;--shadow-sm:0 1px 2px rgba(15,23,42,.04);--shadow-md:0 4px 12px rgba(15,23,42,.06);--shadow-lg:0 16px 32px rgba(15,23,42,.08)}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg-page);color:var(--text-main);font-family:var(--font);font-size:14px;-webkit-font-smoothing:antialiased}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}button{font-family:var(--font)}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary)!important;box-shadow:0 0 0 3px var(--primary-line)}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:6px}::-webkit-scrollbar-thumb:hover{background:var(--text-soft)}::-webkit-scrollbar-track{background:transparent}