/* ============================================
   惠晟百货商城 - 后台管理样式
   ============================================ */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; color: #333; background: #f0f2f5; font-size: 14px; }
a { color: #1890ff; text-decoration: none; }
a:hover { color: #40a9ff; }
img { max-width: 100%; }

/* 布局 */
.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar { width: 220px; background: #001529; color: #fff; flex-shrink: 0; position: fixed; top: 0; left: 0; bottom: 0; overflow-y: auto; }
.admin-logo { padding: 20px; text-align: center; border-bottom: 1px solid #1f3a5f; }
.admin-logo span { display: block; font-size: 18px; font-weight: bold; color: #fff; }
.admin-logo small { display: block; font-size: 12px; color: #8c9eb5; margin-top: 5px; }
.admin-menu { padding: 15px 0; }
.admin-menu li a { display: block; padding: 12px 25px; color: #8c9eb5; font-size: 14px; transition: all .3s; }
.admin-menu li a:hover { color: #fff; background: #1890ff10; }
.admin-menu li a.active { color: #fff; background: #1890ff; }
.admin-main { flex: 1; margin-left: 220px; }
.admin-topbar { background: #fff; padding: 0 25px; height: 56px; display: flex; justify-content: space-between; align-items: center; box-shadow: 0 1px 4px rgba(0,0,0,.08); position: sticky; top: 0; z-index: 100; }
.topbar-actions { display: flex; gap: 20px; }
.topbar-actions a { color: #666; font-size: 14px; }
.topbar-actions a:hover { color: #1890ff; }
.admin-content { padding: 20px 25px; }

/* 页面头部 */
.page-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.page-header h1 { font-size: 20px; }
.page-header p { color: #999; font-size: 13px; margin-top: 5px; }

/* 统计卡片 */
.stat-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 15px; margin-bottom: 25px; }
.stat-card { background: #fff; padding: 20px; border-radius: 8px; display: flex; align-items: center; gap: 15px; box-shadow: 0 1px 3px rgba(0,0,0,.05); }
.sc-icon { width: 50px; height: 50px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 24px; flex-shrink: 0; }
.sc-info { flex: 1; }
.sc-num { display: block; font-size: 22px; font-weight: bold; color: #333; }
.sc-label { font-size: 13px; color: #999; }

/* 面板 */
.panel { background: #fff; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 1px 3px rgba(0,0,0,.05); overflow: hidden; }
.panel-header { padding: 15px 20px; border-bottom: 1px solid #f0f0f0; display: flex; justify-content: space-between; align-items: center; }
.panel-header h3 { font-size: 16px; }
.panel-header a { font-size: 13px; color: #1890ff; }
.panel-body { padding: 20px; }

/* 数据表格 */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td { padding: 12px 10px; text-align: left; border-bottom: 1px solid #f0f0f0; font-size: 13px; }
.data-table th { background: #fafafa; font-weight: 600; color: #666; white-space: nowrap; }
.data-table tr:hover { background: #fafafa; }
.data-table img { border-radius: 4px; }

/* 徽章 */
.badge { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 12px; background: #f0f0f0; color: #666; }
.badge-success { background: #f6ffed; color: #52c41a; }
.badge-warning { background: #fffbe6; color: #faad14; }
.badge-error { background: #fff2f0; color: #ff4d4f; }

/* 按钮 */
.btn { display: inline-block; padding: 7px 18px; border-radius: 4px; cursor: pointer; font-size: 13px; border: 1px solid #d9d9d9; background: #fff; color: #333; text-align: center; }
.btn:hover { border-color: #1890ff; color: #1890ff; }
.btn-primary { background: #1890ff; color: #fff; border-color: #1890ff; }
.btn-primary:hover { background: #40a9ff; color: #fff; border-color: #40a9ff; }
.btn-block { width: 100%; }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-outline { background: #fff; }
.link-btn { background: none; border: none; color: #1890ff; cursor: pointer; font-size: 13px; padding: 0 5px; }
.link-btn:hover { color: #40a9ff; }
.link-danger { color: #ff4d4f; }
.link-danger:hover { color: #ff7875; }

/* 表单 */
.form-group { margin-bottom: 18px; }
.form-group label { display: block; margin-bottom: 8px; font-size: 14px; color: #333; }
.form-group input, .form-group textarea, .form-group select { width: 100%; padding: 8px 12px; border: 1px solid #d9d9d9; border-radius: 4px; font-size: 14px; outline: none; }
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { border-color: #1890ff; box-shadow: 0 0 0 2px rgba(24,144,255,.2); }
.form-group textarea { resize: vertical; }
.form-group small { display: block; margin-top: 5px; color: #999; font-size: 12px; }
.required { color: #ff4d4f; }
.form-row { margin-bottom: 15px; }
.form-row label { display: block; margin-bottom: 6px; font-size: 14px; color: #333; }
.form-row input, .form-row textarea, .form-row select { width: 100%; padding: 8px 12px; border: 1px solid #d9d9d9; border-radius: 4px; outline: none; font-size: 14px; }
.form-row input:focus, .form-row textarea:focus { border-color: #1890ff; }
.form-row-inline { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; }
.checkbox-row { display: flex; gap: 25px; }
.checkbox-row label { display: flex; align-items: center; gap: 5px; font-weight: normal; cursor: pointer; }
.form-actions { margin-top: 25px; display: flex; gap: 10px; }

/* 商品表单 */
.product-form { max-width: 800px; }

/* 筛选 */
.filter-form { display: flex; gap: 10px; margin-bottom: 15px; align-items: center; }
.filter-form input, .filter-form select { padding: 7px 12px; border: 1px solid #d9d9d9; border-radius: 4px; outline: none; font-size: 13px; }

/* 订单标签页 */
.order-tabs { display: flex; gap: 5px; margin-bottom: 15px; border-bottom: 1px solid #f0f0f0; }
.order-tabs a { padding: 8px 16px; font-size: 13px; color: #666; border-bottom: 2px solid transparent; }
.order-tabs a:hover, .order-tabs a.active { color: #1890ff; border-bottom-color: #1890ff; }

/* 仪表盘网格 */
.dashboard-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

/* 提示 */
.alert { padding: 10px 15px; border-radius: 4px; margin-bottom: 15px; font-size: 13px; }
.alert-error { background: #fff2f0; color: #ff4d4f; border: 1px solid #ffccc7; }
.alert-success { background: #f6ffed; color: #52c41a; border: 1px solid #b7eb8f; }
.alert-info { background: #e6f7ff; color: #1890ff; border: 1px solid #91d5ff; }
.alert-warning { background: #fffbe6; color: #faad14; border: 1px solid #ffe58f; }

/* 分页 */
.pagination { display: flex; justify-content: center; gap: 5px; margin-top: 20px; }
.pagination a { padding: 5px 10px; border: 1px solid #d9d9d9; border-radius: 4px; font-size: 13px; color: #666; }
.pagination a:hover, .pagination a.active { background: #1890ff; color: #fff; border-color: #1890ff; }

/* 登录页 */
.admin-login-page { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.admin-login-box { background: #fff; padding: 40px; border-radius: 12px; width: 380px; box-shadow: 0 10px 40px rgba(0,0,0,.2); }
.admin-login-box h1 { text-align: center; font-size: 22px; margin-bottom: 30px; color: #333; }
.login-tip { text-align: center; margin-top: 15px; font-size: 12px; color: #999; }

/* 响应式 */
@media (max-width: 1024px) {
  .stat-cards { grid-template-columns: repeat(2, 1fr); }
  .dashboard-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .admin-sidebar { width: 60px; }
  .admin-logo span, .admin-logo small, .admin-menu li a span { display: none; }
  .admin-main { margin-left: 60px; }
  .stat-cards { grid-template-columns: 1fr; }
  .form-row-inline { grid-template-columns: 1fr; }
}