/* ========== 全局基础 ========== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#4f46e5;--primary-dark:#4338ca;--primary-light:#eef2ff;
  --success:#16a34a;--success-light:#f0fdf4;
  --danger:#dc2626;--danger-light:#fef2f2;
  --warning:#d97706;--warning-light:#fffbeb;
  --info:#2563eb;--info-light:#eff6ff;
  --gray-50:#f9fafb;--gray-100:#f3f4f6;--gray-200:#e5e7eb;--gray-300:#d1d5db;
  --gray-400:#9ca3af;--gray-500:#6b7280;--gray-600:#4b5563;--gray-700:#374151;
  --gray-800:#1f2937;--gray-900:#111827;
  --radius:8px;--radius-lg:12px;--shadow:0 1px 3px rgba(0,0,0,.1);--shadow-lg:0 8px 24px rgba(0,0,0,.12);
  --sidebar-w:230px;--topbar-h:56px;
}
html{font-size:14px}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--gray-800);background:var(--gray-100);line-height:1.6}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}

/* ========== 按钮 ========== */
.btn{display:inline-flex;align-items:center;gap:6px;padding:7px 16px;border:1px solid transparent;border-radius:var(--radius);font-size:14px;font-weight:500;cursor:pointer;transition:all .15s;white-space:nowrap;line-height:1.4}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-dark)}
.btn-outline{background:#fff;border-color:var(--gray-300);color:var(--gray-700)}.btn-outline:hover:not(:disabled){border-color:var(--primary);color:var(--primary)}
.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover:not(:disabled){opacity:.9}
.btn-success{background:var(--success);color:#fff}
.btn-sm{padding:4px 10px;font-size:13px}
.btn-lg{padding:10px 24px;font-size:15px}
.btn-icon{padding:6px;border:none;background:transparent;color:var(--gray-500);cursor:pointer;border-radius:6px}
.btn-icon:hover{background:var(--gray-100);color:var(--gray-700)}
.btn-block{width:100%;justify-content:center}

/* ========== 表单 ========== */
.form-group{margin-bottom:16px}
.form-label{display:block;margin-bottom:6px;font-size:13px;font-weight:500;color:var(--gray-700)}
.form-label .req{color:var(--danger);margin-left:2px}
.form-control{width:100%;padding:8px 12px;border:1px solid var(--gray-300);border-radius:var(--radius);font-size:14px;color:var(--gray-800);background:#fff;transition:border-color .15s,box-shadow .15s;font-family:inherit}
.form-control:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(79,70,229,.1)}
.form-control:disabled{background:var(--gray-100);cursor:not-allowed}
textarea.form-control{resize:vertical;min-height:80px}
select.form-control{cursor:pointer}
.form-hint{font-size:12px;color:var(--gray-400);margin-top:4px}
.form-row{display:flex;gap:16px;flex-wrap:wrap}
.form-row>.form-group{flex:1;min-width:200px}
.form-inline{display:flex;align-items:center;gap:8px;flex-wrap:wrap}

/* checkbox/radio */
.checkbox-group,.radio-group{display:flex;flex-direction:column;gap:8px}
.checkbox-group.horizontal,.radio-group.horizontal{flex-direction:row;flex-wrap:wrap;gap:16px}
.checkbox-group label,.radio-group label{display:inline-flex;align-items:center;gap:6px;cursor:pointer;font-size:14px}
input[type=checkbox],input[type=radio]{width:16px;height:16px;accent-color:var(--primary)}

/* ========== 表格 ========== */
.table-wrap{overflow-x:auto;background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow)}
table.data-table{width:100%;border-collapse:collapse;font-size:14px}
table.data-table thead th{background:var(--gray-50);padding:10px 14px;text-align:left;font-weight:600;color:var(--gray-600);border-bottom:1px solid var(--gray-200);white-space:nowrap}
table.data-table tbody td{padding:10px 14px;border-bottom:1px solid var(--gray-100);color:var(--gray-700)}
table.data-table tbody tr:hover{background:var(--gray-50)}
table.data-table tbody tr:last-child td{border-bottom:none}

/* ========== Badge ========== */
.badge{display:inline-block;padding:2px 10px;border-radius:20px;font-size:12px;font-weight:500}
.badge-success{background:var(--success-light);color:var(--success)}
.badge-danger{background:var(--danger-light);color:var(--danger)}
.badge-warning{background:var(--warning-light);color:var(--warning)}
.badge-info{background:var(--info-light);color:var(--info)}
.badge-gray{background:var(--gray-100);color:var(--gray-500)}
.badge-primary{background:var(--primary-light);color:var(--primary)}

/* ========== 卡片 ========== */
.card{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:20px}
.card-title{font-size:16px;font-weight:600;margin-bottom:16px;color:var(--gray-800)}

/* ========== 工具类 ========== */
.flex{display:flex}.items-center{align-items:center}.justify-between{justify-content:space-between}
.gap-2{gap:8px}.gap-3{gap:12px}.gap-4{gap:16px}
.mt-2{margin-top:8px}.mt-4{margin-top:16px}.mb-2{margin-bottom:8px}.mb-4{margin-bottom:16px}
.text-sm{font-size:13px}.text-gray{color:var(--gray-500)}.text-right{text-align:right}
.w-full{width:100%}.hidden{display:none!important}

/* 空状态 */
.empty-state{text-align:center;padding:48px 20px;color:var(--gray-400)}
.empty-state .empty-icon{font-size:48px;margin-bottom:12px}

/* 分页 */
.pagination{display:flex;align-items:center;justify-content:center;gap:4px;padding:16px 0}
.pagination button{min-width:32px;height:32px;border:1px solid var(--gray-300);background:#fff;border-radius:6px;cursor:pointer;font-size:13px;color:var(--gray-600)}
.pagination button:hover:not(:disabled){border-color:var(--primary);color:var(--primary)}
.pagination button.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.pagination button:disabled{opacity:.4;cursor:not-allowed}

/* 加载 */
.loading-spinner{display:inline-block;width:16px;height:16px;border:2px solid var(--gray-200);border-top-color:var(--primary);border-radius:50%;animation:spin .6s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}