/* ========== 董饱饱管理后台样式 ========== */
:root {
  --primary: #e74c3c;
  --primary-dark: #c0392b;
  --sidebar-bg: #1a1a2e;
  --sidebar-hover: #16213e;
  --sidebar-active: #e74c3c;
  --bg: #f5f6fa;
  --card-bg: #fff;
  --border: #e8e8e8;
  --text: #333;
  --text-light: #888;
  --success: #27ae60;
  --warning: #f39c12;
  --danger: #e74c3c;
  --info: #3498db;
  --radius: 8px;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
}

/* ========== 图片上传控件 ========== */
.img-upload-wrap {
  position: relative;
  width: 100%;
  height: 160px;
  border: 2px dashed var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  overflow: hidden;
  background: #fafafa;
  transition: border-color .2s, background .2s;
}
.img-upload-wrap:hover {
  border-color: var(--primary);
  background: #fff5f5;
}
#img-upload-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: #aaa;
  pointer-events: none;
}
#img-upload-placeholder p { font-size: 13px; margin: 0; }
#img-upload-loading {
  display: none;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; background: var(--bg); color: var(--text); font-size: 14px; }

/* ====== 登录页 ====== */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%); }
.login-card { background: #fff; border-radius: 12px; padding: 48px 40px; width: 400px; box-shadow: 0 20px 60px rgba(0,0,0,0.3); }
.login-card h1 { text-align: center; font-size: 28px; margin-bottom: 8px; color: var(--primary); }
.login-card .subtitle { text-align: center; color: var(--text-light); margin-bottom: 32px; }
.login-card .form-group { margin-bottom: 20px; }
.login-card label { display: block; margin-bottom: 6px; font-weight: 500; color: #555; }
.login-card input { width: 100%; padding: 12px 14px; border: 1px solid var(--border); border-radius: var(--radius); font-size: 14px; transition: border-color 0.2s; }
.login-card input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(231,76,60,0.1); }
.login-card .btn-login { width: 100%; padding: 12px; background: var(--primary); color: #fff; border: none; border-radius: var(--radius); font-size: 16px; cursor: pointer; transition: background 0.2s; }
.login-card .btn-login:hover { background: var(--primary-dark); }
.login-card .btn-login:disabled { opacity: 0.6; cursor: not-allowed; }
.login-card .error-msg { color: var(--danger); text-align: center; margin-top: 12px; font-size: 13px; display: none; }

/* ====== 后台布局 ====== */
.admin-body { display: flex; min-height: 100vh; }

/* 侧边栏 */
.sidebar { width: 220px; background: var(--sidebar-bg); color: #ccc; display: flex; flex-direction: column; position: fixed; top: 0; left: 0; bottom: 0; z-index: 100; }
.sidebar .logo { padding: 20px; font-size: 20px; font-weight: bold; color: #fff; border-bottom: 1px solid rgba(255,255,255,0.08); display: flex; align-items: center; gap: 8px; }
.sidebar .logo .icon { font-size: 26px; }
.sidebar nav { flex: 1; padding: 12px 0; overflow-y: auto; }
.sidebar nav a { display: flex; align-items: center; gap: 10px; padding: 12px 20px; color: #a0aec0; text-decoration: none; font-size: 14px; transition: all 0.2s; cursor: pointer; border-left: 3px solid transparent; }
.sidebar nav a:hover { background: var(--sidebar-hover); color: #e2e8f0; }
.sidebar nav a.active { background: rgba(231,76,60,0.15); color: #fff; border-left-color: var(--sidebar-active); }
.sidebar nav a .nav-icon { font-size: 18px; width: 24px; text-align: center; }
.sidebar .sidebar-footer { padding: 16px 20px; border-top: 1px solid rgba(255,255,255,0.08); }
.sidebar .sidebar-footer .user-info { font-size: 12px; color: #718096; }

/* 主区域 */
.main { flex: 1; margin-left: 220px; display: flex; flex-direction: column; min-height: 100vh; }
.header { background: #fff; padding: 0 24px; height: 56px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--border); box-shadow: 0 1px 3px rgba(0,0,0,0.05); }
.header .breadcrumb { font-size: 16px; font-weight: 600; }
.header .header-right { display: flex; align-items: center; gap: 16px; }
.header .btn-logout { padding: 6px 16px; background: none; border: 1px solid var(--border); border-radius: var(--radius); cursor: pointer; font-size: 13px; color: var(--text-light); transition: all 0.2s; }
.header .btn-logout:hover { color: var(--danger); border-color: var(--danger); }
.content { flex: 1; padding: 24px; }

/* 页面区块 */
.page { display: none; }
.page.active { display: block; }

/* 统计卡片 */
.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 24px; }
.stat-card { background: var(--card-bg); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); }
.stat-card .stat-label { font-size: 13px; color: var(--text-light); margin-bottom: 8px; }
.stat-card .stat-value { font-size: 28px; font-weight: bold; }
.stat-card .stat-value.revenue { color: var(--primary); }
.stat-card .stat-value.orders { color: var(--info); }
.stat-card .stat-value.profit { color: var(--success); }
.stat-card .stat-value.month { color: var(--warning); }

/* 图表容器 */
.chart-container { background: var(--card-bg); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); margin-bottom: 24px; }
.chart-container h3 { font-size: 16px; margin-bottom: 16px; }
.chart-container canvas { max-height: 300px; }

/* 工具栏 */
.toolbar { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.toolbar .search-input { padding: 8px 12px; border: 1px solid var(--border); border-radius: var(--radius); font-size: 13px; width: 200px; }
.toolbar .search-input:focus { outline: none; border-color: var(--primary); }
.toolbar select { padding: 8px 12px; border: 1px solid var(--border); border-radius: var(--radius); font-size: 13px; background: #fff; }

/* 按钮 */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; border: none; border-radius: var(--radius); font-size: 13px; cursor: pointer; transition: all 0.2s; font-weight: 500; white-space: nowrap; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #219a52; }
.btn-warning { background: var(--warning); color: #fff; }
.btn-warning:hover { background: #d68910; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: var(--primary-dark); }
.btn-outline { background: #fff; color: var(--text); border: 1px solid var(--border); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-sm { padding: 4px 10px; font-size: 12px; }

/* 表格 */
.table-wrap { background: var(--card-bg); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
table { width: 100%; border-collapse: collapse; }
table th { background: #fafbfc; padding: 12px 16px; text-align: left; font-weight: 600; font-size: 13px; color: var(--text-light); border-bottom: 1px solid var(--border); white-space: nowrap; }
table td { padding: 12px 16px; border-bottom: 1px solid #f0f0f0; font-size: 13px; }
table tr:hover td { background: #fafbfc; }
table .actions { display: flex; gap: 8px; }

/* 状态标签 */
.tag { display: inline-block; padding: 2px 10px; border-radius: 12px; font-size: 12px; font-weight: 500; }
  .tag-pending { background: #fff3cd; color: #856404; }
  .tag-unpaid { background: #fff3cd; color: #856404; border: 1px solid #ffc107; }
  .tag-paid { background: #d4edda; color: #155724; }
.tag-shipped { background: #cce5ff; color: #004085; }
.tag-completed { background: #e2e3e5; color: #383d41; }
.tag-cancelled { background: #f8d7da; color: #721c24; }
.tag-refunded { background: #f3e5f5; color: #6a1b9a; border: 1px solid #ce93d8; }

/* 订单状态下拉选择框 */
.status-select {
  padding: 4px 8px;
  border: 1px solid #d0d5dd;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  background: #fff;
  cursor: pointer;
  outline: none;
  appearance: auto;
}
.status-select:focus { border-color: var(--primary); box-shadow: 0 0 0 2px rgba(231,76,60,0.15); }

/* 分页 */
.pagination { display: flex; align-items: center; justify-content: center; gap: 4px; padding: 16px; }
.pagination button { padding: 6px 12px; border: 1px solid var(--border); background: #fff; border-radius: 4px; cursor: pointer; font-size: 13px; }
.pagination button:hover { border-color: var(--primary); color: var(--primary); }
.pagination button:disabled { opacity: 0.4; cursor: not-allowed; }
.pagination button.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.pagination .page-info { font-size: 13px; color: var(--text-light); margin: 0 8px; }

/* 模态框 */
.modal-overlay { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); z-index: 1000; align-items: center; justify-content: center; }
.modal-overlay.show { display: flex; }
.modal { background: #fff; border-radius: 12px; width: 520px; max-height: 80vh; overflow-y: auto; box-shadow: 0 20px 60px rgba(0,0,0,0.2); }
.modal-header { padding: 16px 24px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.modal-header h2 { font-size: 16px; }
.modal-header .modal-close { background: none; border: none; font-size: 22px; cursor: pointer; color: var(--text-light); padding: 4px; line-height: 1; }
.modal-header .modal-close:hover { color: var(--text); }
.modal-body { padding: 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 8px; }

/* 表单 */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 500; font-size: 13px; color: #555; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 8px 12px; border: 1px solid var(--border); border-radius: 6px; font-size: 13px; font-family: inherit; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); }
.form-group textarea { resize: vertical; min-height: 80px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

/* Toast 提示 */
.toast { position: fixed; top: 20px; right: 20px; padding: 12px 24px; border-radius: var(--radius); color: #fff; font-size: 14px; z-index: 9999; box-shadow: 0 4px 12px rgba(0,0,0,0.2); animation: slideIn 0.3s ease; }
.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }
.toast-info { background: var(--info); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* 空状态 */
.empty { text-align: center; padding: 48px 24px; color: var(--text-light); }
.empty .empty-icon { font-size: 48px; margin-bottom: 12px; }

/* 加载 */
.loading { text-align: center; padding: 24px; color: var(--text-light); }
.loading::after { content: '...'; animation: dots 1.5s steps(4, end) infinite; }
@keyframes dots { 0%, 20% { content: '.'; } 40% { content: '..'; } 60%, 100% { content: '...'; } }

/* 通知内容编辑 */
.notice-content-editor { background: var(--card-bg); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); margin-bottom: 16px; }