:root{--brand:#3196ff;--brand-dark:#1f7de0;--brand-light:#e8f3ff;--bg:#f5f7fb;--side:#1a2332;--side-hover:#243044;--text:#1f2937;--muted:#6b7280;--border:#e5e7eb;--danger:#ef4444;--success:#10b981;--warning:#f59e0b;--radius:8px;--shadow:0 1px 3px #00000014}*{box-sizing:border-box;margin:0;padding:0}html,body,#app{height:100%}body{color:var(--text);background:var(--bg);font-family:PingFang SC,Microsoft YaHei,Helvetica Neue,Arial,sans-serif;line-height:1.5}a{color:var(--brand);text-decoration:none}button,input,select,textarea{font:inherit}.btn{border-radius:var(--radius);cursor:pointer;background:var(--brand);color:#fff;border:none;justify-content:center;align-items:center;gap:6px;padding:8px 16px;transition:background .15s;display:inline-flex}.btn:hover{background:var(--brand-dark)}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-ghost{color:var(--text);border:1px solid var(--border);background:#fff}.btn-ghost:hover{background:var(--brand-light);color:var(--brand)}.btn-danger{background:var(--danger)}.btn-sm{padding:4px 10px;font-size:13px}.card{border-radius:var(--radius);box-shadow:var(--shadow);background:#fff;padding:20px}.page-title{margin-bottom:16px;font-size:20px;font-weight:600}.toolbar{flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:16px;display:flex}.form-row{flex-direction:column;gap:6px;margin-bottom:14px;display:flex}.form-row label{color:var(--muted);font-size:13px}.form-row input,.form-row select,.form-row textarea,.input{border:1px solid var(--border);border-radius:var(--radius);background:#fff;outline:none;padding:8px 12px}.form-row input:focus,.form-row select:focus,.form-row textarea:focus,.input:focus{border-color:var(--brand);box-shadow:0 0 0 3px #3196ff26}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:14px}th,td{text-align:left;border-bottom:1px solid var(--border);padding:12px 14px}th{color:var(--muted);background:#fafbfc;font-weight:500}tr:hover td{background:#fafbfc}.badge{border-radius:999px;padding:2px 8px;font-size:12px;display:inline-block}.badge-ok{color:#065f46;background:#d1fae5}.badge-off{color:#991b1b;background:#fee2e2}.alert{border-radius:var(--radius);margin-bottom:14px;padding:10px 14px;font-size:14px}.alert-error{color:#991b1b;background:#fef2f2;border:1px solid #fecaca}.alert-info{background:var(--brand-light);color:var(--brand-dark);border:1px solid #b8d9ff}.modal-mask{z-index:1000;background:#0f172a73;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal{background:#fff;border-radius:12px;width:100%;max-width:480px;padding:24px;box-shadow:0 20px 40px #00000026}.modal h3{margin-bottom:16px}.modal-actions{justify-content:flex-end;gap:10px;margin-top:20px;display:flex}.empty{text-align:center;color:var(--muted);padding:40px 16px}.stat-grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px;display:grid}.stat-card{border-radius:var(--radius);box-shadow:var(--shadow);background:#fff;padding:18px 20px}.stat-card .label{color:var(--muted);font-size:13px}.stat-card .value{color:var(--brand);margin-top:6px;font-size:28px;font-weight:700}.loading{color:var(--muted);text-align:center;padding:24px}