:root{--primary: #2f54eb;--primary-dark: #1d39c4;--bg: #f5f6fa;--sidebar: #1f2433;--card: #ffffff;--border: #e8e8ef;--text: #1f2433;--muted: #8a8f99;--danger: #e34d59;--success: #2ba471;--warning: #e6a23c}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;color:var(--text);background:var(--bg)}a{text-decoration:none;color:inherit}.sidebar{width:220px;background:var(--sidebar);color:#fff;min-height:100vh;flex-shrink:0}.sidebar .brand{padding:20px 18px;font-weight:700;font-size:18px;letter-spacing:1px}.sidebar nav a{display:block;padding:12px 18px;color:#c5c9d6;font-size:14px;border-left:3px solid transparent}.sidebar nav a:hover{background:#ffffff0f;color:#fff}.sidebar nav a.active{background:#2f54eb2e;color:#fff;border-left-color:var(--primary)}.topbar{height:56px;background:var(--card);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 24px}.topbar .right{display:flex;align-items:center;gap:16px;font-size:14px}.card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:18px 20px;margin-bottom:18px;box-shadow:0 1px 2px #00000008}.card h2,.card h3{margin:0 0 14px;font-size:16px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px}.stat{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:20px}.stat .num{font-size:30px;font-weight:700;color:var(--primary)}.stat .label{color:var(--muted);margin-top:6px;font-size:13px}table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border)}th{color:var(--muted);font-weight:600;background:#fafafe}tr:hover td{background:#fafafe}.form-row{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end;margin-bottom:14px}.field{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted)}input,select{padding:8px 10px;border:1px solid var(--border);border-radius:6px;font-size:14px;outline:none;min-width:160px}input:focus,select:focus{border-color:var(--primary)}.btn{padding:8px 14px;border:none;border-radius:6px;background:var(--primary);color:#fff;font-size:14px;cursor:pointer}.btn:hover{background:var(--primary-dark)}.btn.secondary{background:#fff;color:var(--primary);border:1px solid var(--primary)}.btn.ghost{background:#f0f1f5;color:var(--text)}.btn.danger{background:var(--danger)}.btn.small{padding:5px 10px;font-size:13px}.btn:disabled{opacity:.5;cursor:not-allowed}.badge{position:absolute;top:-6px;right:-8px;background:var(--danger);color:#fff;border-radius:10px;font-size:11px;padding:1px 6px;line-height:16px}.tag{display:inline-block;padding:2px 8px;border-radius:4px;font-size:12px;background:#eef1ff;color:var(--primary)}.tag.gray{background:#f0f1f5;color:var(--muted)}.tag.green{background:#e7f7ef;color:var(--success)}.tag.red{background:#fdecee;color:var(--danger)}.tag.orange{background:#fdf3e7;color:var(--warning)}.error{color:var(--danger);font-size:13px;margin-top:8px}.muted{color:var(--muted);font-size:13px}.page-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:100}.modal{background:#fff;border-radius:10px;padding:24px;width:420px;max-width:92vw}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#1f2433,#2f54eb)}.login-box{background:#fff;border-radius:12px;padding:32px;width:360px;box-shadow:0 10px 40px #0003}.notif-dot{position:relative;display:inline-block}