/* 管理后台样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: #f5f6fa;
  color: #2d3436;
}

/* 登录页面 */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #FF6B35 0%, #E55A2B 100%);
  padding: 20px;
}

.login-container {
  background: #fff;
  border-radius: 16px;
  padding: 48px 40px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}

.login-header {
  text-align: center;
  margin-bottom: 36px;
}

.login-header h1 {
  font-size: 24px;
  font-weight: 700;
  color: #2d3436;
  margin-bottom: 8px;
}

.login-header p {
  color: #636e72;
  font-size: 14px;
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
  color: #2d3436;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #dfe6e9;
  border-radius: 8px;
  font-size: 14px;
  transition: all 0.3s;
}

.form-input:focus {
  outline: none;
  border-color: #FF6B35;
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.login-btn {
  width: 100%;
  background: linear-gradient(135deg, #FF8A5C, #FF6B35);
  color: #fff;
  padding: 14px;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
}

.login-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(255, 107, 53, 0.3);
}

.login-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

/* 管理后台主体 */
.admin-layout {
  display: flex;
  min-height: 100vh;
}

.admin-sidebar {
  width: 260px;
  background: #2d3436;
  color: #fff;
  flex-shrink: 0;
}

.sidebar-header {
  padding: 24px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-header h2 {
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-menu {
  list-style: none;
  padding: 16px 0;
}

.sidebar-menu li {
  margin-bottom: 4px;
}

.sidebar-menu a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-size: 14px;
  transition: all 0.3s;
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
  background: rgba(255, 107, 53, 0.2);
  color: #fff;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.logout-btn {
  width: 100%;
  background: rgba(255,255,255,0.1);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.2);
  padding: 10px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.3s;
}

.logout-btn:hover {
  background: rgba(255,255,255,0.2);
}

.admin-main {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.admin-header {
  background: #fff;
  padding: 16px 32px;
  border-bottom: 1px solid #dfe6e9;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.admin-header h1 {
  font-size: 20px;
  font-weight: 700;
}

.admin-user {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
}

.admin-content {
  flex: 1;
  padding: 32px;
  overflow-y: auto;
}

/* 数据概览卡片 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.stat-card {
  background: #fff;
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.stat-card h3 {
  font-size: 14px;
  color: #636e72;
  font-weight: 500;
  margin-bottom: 12px;
}

.stat-number {
  font-size: 32px;
  font-weight: 800;
  color: #2d3436;
}

.stat-card.primary .stat-number { color: #FF6B35; }
.stat-card.success .stat-number { color: #00b894; }
.stat-card.warning .stat-number { color: #fdcb6e; }
.stat-card.info .stat-number { color: #74b9ff; }

/* 筛选栏 */
.filter-bar {
  background: #fff;
  border-radius: 12px;
  padding: 20px 24px;
  margin-bottom: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.filter-left {
  display: flex;
  gap: 12px;
}

.filter-btn {
  padding: 8px 16px;
  border: 1px solid #dfe6e9;
  background: #fff;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
  transition: all 0.3s;
}

.filter-btn:hover,
.filter-btn.active {
  background: #FF6B35;
  color: #fff;
  border-color: #FF6B35;
}

/* 表格 */
.table-container {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  overflow: hidden;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th {
  background: #f8f9fa;
  padding: 14px 16px;
  text-align: left;
  font-size: 13px;
  font-weight: 600;
  color: #636e72;
  border-bottom: 1px solid #dfe6e9;
}

.data-table td {
  padding: 14px 16px;
  font-size: 14px;
  border-bottom: 1px solid #f1f2f6;
}

.data-table tr:hover {
  background: #f8f9fa;
}

.data-table tr:last-child td {
  border-bottom: none;
}

/* 状态标签 */
.status-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

.status-pending {
  background: #ffeaa7;
  color: #d68910;
}

.status-reviewing {
  background: #74b9ff;
  color: #0984e3;
}

.status-approved {
  background: #55efc4;
  color: #00b894;
}

.status-rejected {
  background: #fab1a0;
  color: #d63031;
}

/* 操作按钮 */
.action-btns {
  display: flex;
  gap: 8px;
}

.action-btn {
  padding: 6px 12px;
  border: none;
  border-radius: 6px;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.3s;
}

.action-btn.approve {
  background: #00b894;
  color: #fff;
}

.action-btn.reject {
  background: #d63031;
  color: #fff;
}

.action-btn.delete {
  background: #636e72;
  color: #fff;
}

.action-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 20px;
}

.page-btn {
  min-width: 36px;
  height: 36px;
  border: 1px solid #dfe6e9;
  background: #fff;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
  transition: all 0.3s;
}

.page-btn:hover,
.page-btn.active {
  background: #FF6B35;
  color: #fff;
  border-color: #FF6B35;
}

.page-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* 响应式 */
@media (max-width: 1024px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .admin-sidebar {
    display: none;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .admin-content {
    padding: 20px;
  }
  
  .filter-bar {
    flex-direction: column;
    gap: 12px;
  }
  
  .data-table {
    font-size: 12px;
  }
  
  .data-table th,
  .data-table td {
    padding: 10px 8px;
  }
}