/* 主内容区域样式 */
.main-content {
  overflow-y: auto;
  background: var(--bg-secondary);
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100vh;
}

/* 内容头部 */
.content-header {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-light);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 24px;
  flex-wrap: wrap;
}

/* 移动端菜单按钮 */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  padding: 8px;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.mobile-menu-toggle:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.mobile-menu-toggle:focus-visible {
  outline: 2px solid var(--accent-600);
  outline-offset: 2px;
}

/* 面包屑导航 */
.breadcrumb {
  flex: 1;
  min-width: 200px;
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  list-style: none;
  padding: 0;
  margin: 0;
  gap: 8px;
  flex-wrap: wrap;
}

.breadcrumb-item:not(:last-child)::after {
  content: '/';
  color: var(--text-muted);
  margin-left: 8px;
}

.breadcrumb-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s ease;
}

.breadcrumb-link:hover {
  color: var(--accent-600);
}

.breadcrumb-current {
  color: var(--text-primary);
  font-weight: 500;
  font-size: 14px;
}

/* 工具栏 */
.header-tools {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* 搜索容器 */
.search-container {
  display: flex;
  align-items: center;
  gap: 8px;
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 12px;
  color: var(--text-muted);
  pointer-events: none;
  z-index: 1;
}

.search-input {
  width: 300px;
  max-width: 100%;
  padding: 8px 12px 8px 36px;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  font-size: 14px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  transition: all 0.2s ease;
}

.search-input:focus {
  outline: none;
  border-color: var(--accent-500);
  box-shadow: 0 0 0 3px var(--accent-100);
}

.search-input::placeholder {
  color: var(--text-muted);
}

.search-clear {
  position: absolute;
  right: 8px;
  background: none;
  border: none;
  padding: 4px;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.search-clear:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.search-button {
  padding: 8px 12px;
  background: var(--accent-600);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 4px;
}

.search-button:hover {
  background: var(--accent-700);
}

.search-button:focus-visible {
  outline: 2px solid var(--accent-600);
  outline-offset: 2px;
}

/* 视图控制 */
.view-controls {
  display: flex;
  align-items: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.view-button {
  padding: 8px;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.view-button:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.view-button.active {
  background: var(--accent-100);
  color: var(--accent-700);
}

.view-button:focus-visible {
  outline: 2px solid var(--accent-600);
  outline-offset: 2px;
}

/* 导出下拉菜单 */
.export-dropdown {
  position: relative;
}

.export-button {
  padding: 8px 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 4px;
}

.export-button:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--border-dark);
}

.export-button:focus-visible {
  outline: 2px solid var(--accent-600);
  outline-offset: 2px;
}

.export-menu {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 4px;
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 120px;
  z-index: 1000;
  display: none;
}

.export-menu.show {
  display: block;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.export-option {
  width: 100%;
  padding: 8px 12px;
  background: none;
  border: none;
  text-align: left;
  font-size: 14px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.export-option:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.export-option:focus-visible {
  outline: 2px solid var(--accent-600);
  outline-offset: -2px;
}

.export-option:first-child {
  border-top-left-radius: var(--radius-md);
  border-top-right-radius: var(--radius-md);
}

.export-option:last-child {
  border-bottom-left-radius: var(--radius-md);
  border-bottom-right-radius: var(--radius-md);
}

/* 分页信息 */
.pagination-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 24px;
  background: var(--bg-tertiary);
  border-top: 1px solid var(--border-light);
  font-size: 14px;
}

.pagination-text {
  color: var(--text-secondary);
}

.per-page-select {
  padding: 4px 8px;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  font-size: 14px;
  background: var(--bg-primary);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s ease;
  min-width: 100px;
  height: 32px;
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 8px center;
  background-size: 16px;
  padding-right: 28px;
}

.per-page-select:hover {
  border-color: var(--border-dark);
}

.per-page-select:focus {
  outline: none;
  border-color: var(--accent-500);
  box-shadow: 0 0 0 2px var(--accent-100);
}

/* 卡片布局控制 */
.cards-layout-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.cards-per-row-select {
  padding: 4px 8px;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  font-size: 14px;
  background: var(--bg-primary);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s ease;
  min-width: 80px;
  height: 32px;
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 8px center;
  background-size: 16px;
  padding-right: 28px;
}

.cards-per-row-select:hover {
  border-color: var(--border-dark);
}

.cards-per-row-select:focus {
  outline: none;
  border-color: var(--accent-500);
  box-shadow: 0 0 0 2px var(--accent-100);
}

/* 黑暗模式下的select样式 */
[data-theme="dark"] .cards-per-row-select,
[data-theme="dark"] .per-page-select {
  background-color: var(--bg-secondary);
  border-color: var(--border-dark);
}

[data-theme="dark"] .cards-per-row-select:hover,
[data-theme="dark"] .per-page-select:hover {
  border-color: var(--border-light);
}

[data-theme="dark"] .cards-per-row-select:focus,
[data-theme="dark"] .per-page-select:focus {
  border-color: var(--accent-500);
  box-shadow: 0 0 0 2px var(--accent-900);
}

/* 主内容区域 */
.content-main {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

.content-container {
  max-width: none;
  margin: 0;
}

/* 数据展示区域 */
.data-display {
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

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

.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-light);
  font-size: 14px;
}

.data-table th {
  background: var(--bg-secondary);
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.data-table tbody tr {
  transition: background-color 0.2s ease;
}

.data-table tbody tr:hover {
  background: var(--bg-secondary);
}

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

.data-table td {
  color: var(--text-primary);
  vertical-align: top;
}

/* 操作按钮 */
.action-button {
  padding: 4px 8px;
  background: none;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  color: var(--accent-600);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  display: inline-block;
}

.action-button:hover {
  background: var(--accent-50);
  border-color: var(--accent-300);
}

.action-button:focus-visible {
  outline: 2px solid var(--accent-600);
  outline-offset: 2px;
}

/* 卡片视图 */
.data-cards {
  display: grid;
  gap: 16px;
  padding: 16px;
  transition: all 0.3s ease;
}

/* 动态列数样式 */
.data-cards[data-columns="1"] {
  grid-template-columns: 1fr;
}

.data-cards[data-columns="2"] {
  grid-template-columns: repeat(2, 1fr);
}

.data-cards[data-columns="3"] {
  grid-template-columns: repeat(3, 1fr);
}

.data-cards[data-columns="4"] {
  grid-template-columns: repeat(4, 1fr);
}

.data-cards[data-columns="6"] {
  grid-template-columns: repeat(6, 1fr);
}

.data-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 16px;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}

.data-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-medium);
}

.data-card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.data-card-item {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 4px 0;
  border-bottom: 1px solid var(--border-light);
}

.data-card-item:last-child {
  border-bottom: none;
}

.data-card-label {
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
  flex-shrink: 0;
  margin-right: 8px;
}

.data-card-value {
  font-size: 13px;
  color: var(--text-primary);
  word-break: break-word;
  text-align: right;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }
  
  .header-toolbar {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    padding: 12px 16px;
  }
  
  .breadcrumb {
    order: -1;
  }
  
  .search-input {
    width: 100%;
  }
  
  .header-tools {
    justify-content: center;
  }
  
  .pagination-info {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding: 12px 16px;
  }
  
  .content-main {
    padding: 16px;
  }
  
  .data-cards[data-columns="1"],
  .data-cards[data-columns="2"],
  .data-cards[data-columns="3"],
  .data-cards[data-columns="4"],
  .data-cards[data-columns="6"] {
    grid-template-columns: 1fr;
  }
  
  .data-cards {
    padding: 12px;
  }
  
  .data-table th,
  .data-table td {
    padding: 8px 12px;
    font-size: 13px;
  }
}

@media (max-width: 480px) {
  .header-tools {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }
  
  .view-controls,
  .export-dropdown,
  .cards-layout-controls {
    width: 100%;
  }
  
  .export-button,
  .cards-per-row-select {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .header-tools {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }
  
  .view-controls,
  .export-dropdown {
    width: 100%;
  }
  
  .export-button {
    width: 100%;
    justify-content: center;
  }
}

/* 加载状态 */
.loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.loading-spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--border-light);
  border-top: 2px solid var(--accent-600);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* 无障碍支持 */
@media (prefers-reduced-motion: reduce) {
  .loading-spinner {
    animation: none;
  }
  
  .data-table tbody tr {
    transition: none;
  }
  
  .data-card {
    transition: none;
  }
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
  .data-table th,
  .data-table td {
    border-color: var(--border-dark);
  }
  
  .data-card {
    border-color: var(--border-dark);
  }
}

/* 打印样式 */
@media print {
  .content-header {
    display: none;
  }
  
  .data-table th {
    background: var(--bg-primary);
    color: var(--text-primary);
  }
}