/* VirtListTransfer 组件样式 */
.virt-transfer {
  height: 100%;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

.virt-transfer-disabled {
  opacity: 0.6;
  pointer-events: none;
}

/* 尺寸变体 */
.virt-transfer-small {
  font-size: 12px;
}

.virt-transfer-small .virt-transfer-list {
  min-width: 200px;
}

.virt-transfer-small .virt-transfer-header {
  padding: 6px 10px;
}

.virt-transfer-small .virt-transfer-search {
  padding: 6px 10px;
}

.virt-transfer-small .virt-transfer-item {
  padding: 0 10px;
}

.virt-transfer-default .virt-transfer-list {
  min-width: 250px;
}

.virt-transfer-large {
  font-size: 16px;
}

.virt-transfer-large .virt-transfer-list {
  min-width: 300px;
}

.virt-transfer-large .virt-transfer-header {
  padding: 10px 16px;
}

.virt-transfer-large .virt-transfer-search {
  padding: 10px 16px;
}

.virt-transfer-large .virt-transfer-item {
  padding: 0 16px;
}

.virt-transfer-large .virt-transfer-operation-btn {
  padding: 8px 16px;
  font-size: 14px;
}

/* 列表容器 */
.virt-transfer-list {
  flex: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
}

/* 搜索框 */
.virt-transfer-search {
  padding: 8px 12px;
  border-bottom: 1px solid #f0f0f0;
}

.virt-transfer-search-input-wrapper {
  position: relative;
  width: 100%;
}

.virt-transfer-search input {
  width: 100%;
  padding: 4px 28px 4px 8px;
  border: 1px solid #d9d9d9;
  border-radius: 4px;
  font-size: 12px;
  transition: border-color 0.2s;
}

.virt-transfer-search input:focus {
  outline: none;
  border-color: #1890ff;
  box-shadow: 0 0 0 2px rgba(24, 144, 255, 0.2);
}

.virt-transfer-search-clear {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 14px;
  height: 14px;
  line-height: 12px;
  text-align: center;
  border-radius: 50%;
  background-color: #ccc;
  color: #fff;
  font-size: 12px;
  cursor: pointer;
  transition: background-color 0.2s;
}

.virt-transfer-search-clear:hover {
  background-color: #999;
}

/* 头部 */
.virt-transfer-header {
  padding: 8px 12px;
  border-bottom: 1px solid #f0f0f0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: #fafafa;
}

.virt-transfer-header-left {
  display: flex;
  align-items: center;
}

.virt-transfer-header-title {
  font-weight: 500;
  color: #262626;
}

.virt-transfer-header-size {
  font-size: 12px;
  color: #666;
  margin-left: 8px;
}

.virt-transfer-header-select-all {
  display: flex;
  align-items: center;
  font-size: 12px;
  color: #666;
}

.virt-transfer-header-select-all input {
  margin-right: 4px;
}

/* 操作按钮 */
.virt-transfer-operations {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 12px;
}

.virt-transfer-operation-btn {
  margin-bottom: 12px;
  padding: 6px 12px;
  border: 1px solid #d9d9d9;
  border-radius: 4px;
  background: #fff;
  cursor: pointer;
  font-size: 12px;
  transition: all 0.2s;
  min-width: 32px;
  text-align: center;
}

.virt-transfer-operation-btn:last-child {
  margin-bottom: 0;
}

.virt-transfer-operation-btn:hover:not(.virt-transfer-operation-btn-disabled) {
  border-color: #1890ff;
  color: #1890ff;
}

.virt-transfer-operation-btn:active:not(.virt-transfer-operation-btn-disabled) {
  background-color: #f0f0f0;
}

.virt-transfer-operation-btn-disabled {
  background: #f5f5f5;
  cursor: not-allowed;
  color: #bfbfbf;
}

/* 列表项 */
.virt-transfer-item {
  display: flex;
  align-items: center;
  padding: 0 12px;
  cursor: pointer;
  user-select: none;
  transition: all 0.2s;
  border-bottom: 1px solid #f0f0f0;
}

.virt-transfer-item:last-child {
  border-bottom: none;
}

.virt-transfer-item:hover:not(.virt-transfer-item-disabled) {
  background-color: #f5f5f5;
}

.virt-transfer-item-selected {
  background-color: #e6f7ff;
}

.virt-transfer-item-selected:hover {
  background-color: #bae7ff;
}

.virt-transfer-item-disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.virt-transfer-item input[type="checkbox"] {
  margin-right: 8px;
  cursor: pointer;
}

.virt-transfer-item-disabled input[type="checkbox"] {
  cursor: not-allowed;
}

.virt-transfer-item-title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: #262626;
  font-size: 14px;
}

.virt-transfer-item-description {
  font-size: 12px;
  color: #999;
  margin-left: 8px;
  max-width: 30%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 空状态 */
.virt-transfer-empty {
  padding: 20px;
  text-align: center;
  color: #999;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #d9d9d9;
  border-radius: 4px;
  background-color: #fff;
  font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .virt-transfer {
    flex-direction: column;
    gap: 16px;
  }
  
  .virt-transfer-operations {
    flex-direction: row;
    justify-content: center;
    padding: 8px 0;
  }
  
  .virt-transfer-operation-btn {
    margin-bottom: 0;
    margin-right: 8px;
  }
  
  .virt-transfer-operation-btn:last-child {
    margin-right: 0;
  }
  
  .virt-transfer-header {
    flex-wrap: wrap;
  }
  
  .virt-transfer-header-select-all {
    margin-top: 4px;
    width: 100%;
  }
}

@media (max-width: 480px) {
  .virt-transfer-item-description {
    display: none;
  }
  
  .virt-transfer-search input {
    font-size: 14px;
    padding: 6px 28px 6px 8px;
  }
  
  .virt-transfer-header-title {
    font-size: 14px;
  }
}

/* 动画效果 */
.virt-transfer-item {
  animation: fadeIn 0.2s ease-in-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 滚动条样式 */
.virt-transfer-list ::-webkit-scrollbar {
  width: 6px;
}

.virt-transfer-list ::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 3px;
}

.virt-transfer-list ::-webkit-scrollbar-thumb {
  background: #c1c1c1;
  border-radius: 3px;
}

.virt-transfer-list ::-webkit-scrollbar-thumb:hover {
  background: #a8a8a8;
}