.asset-browser {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--color-bg-base);
  border-top: 1px solid var(--color-border-default);
  container-type: inline-size;
  container-name: asset-browser;
}

.asset-browser-header {
  padding: 12px 15px;
  background: #252526;
  border-bottom: 1px solid #333;
}

.asset-browser-header h3 {
  margin: 0;
  font-size: var(--font-size-md);
  font-weight: 600;
  color: #cccccc;
}

.view-mode-buttons {
  display: flex;
  gap: 0;
  margin-left: auto;
}

.view-mode-btn {
  padding: 6px 12px;
  background: transparent;
  border: 1px solid #3e3e3e;
  color: #cccccc;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 12px;
  font-weight: normal;
  border-radius: 0;
}

.view-mode-btn:first-child {
  border-top-left-radius: 3px;
  border-bottom-left-radius: 3px;
  border-right: none;
}

.view-mode-btn:last-child {
  border-top-right-radius: 3px;
  border-bottom-right-radius: 3px;
}

.view-mode-btn:hover:not(.active) {
  background: #2a2d2e;
}

.view-mode-btn.active {
  background: #0e639c;
  border-color: #0e639c;
  color: #ffffff;
  font-weight: 500;
}

/* 响应式：小宽度时只显示图标 - 使用容器查询 */
@container asset-browser (max-width: 400px) {
  .view-mode-text {
    display: none;
  }

  .view-mode-btn {
    padding: 6px 8px;
  }
}

.asset-browser-content {
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.asset-browser-tree,
.asset-browser-tree-only {
  height: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.asset-browser-list {
  height: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  container-type: inline-size;
  container-name: asset-list-container;
}

.asset-browser-breadcrumb {
  padding: 8px 12px;
  background: #2d2d30;
  border-bottom: 1px solid #3e3e3e;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
  font-size: var(--font-size-sm);
  min-height: 32px;
}

.breadcrumb-item {
  color: #cccccc;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 3px;
  transition: all 0.2s ease;
  user-select: none;
}

.breadcrumb-item:hover {
  background: #3e3e3e;
  color: #ffffff;
}

.breadcrumb-item:active {
  background: #094771;
}

.breadcrumb-separator {
  color: #858585;
  pointer-events: none;
}

.asset-browser-toolbar {
  padding: 8px;
  background: #252526;
  border-bottom: 1px solid #3e3e3e;
}

.asset-search {
  width: 100%;
  padding: 6px 10px;
  background: #3c3c3c;
  border: 1px solid #3e3e3e;
  border-radius: 3px;
  color: #cccccc;
  font-size: var(--font-size-base);
  outline: none;
}

.asset-search:focus {
  border-color: #007acc;
  background: #3e3e3e;
}

.asset-search::placeholder {
  color: #858585;
}

.asset-browser-loading,
.asset-browser-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 200px;
  color: #858585;
  font-size: var(--font-size-base);
}

.asset-list {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  gap: 8px;
  padding: 10px;
  overflow-y: auto;
  align-content: start;
}

/* 容器查询：根据容器宽度调整布局 */
@container asset-list-container (max-width: 400px) {
  .asset-list {
    grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
    gap: 6px;
  }
}

@container asset-list-container (max-width: 250px) {
  .asset-list {
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    gap: 4px;
    padding: 6px;
  }
}

@container asset-list-container (max-width: 150px) {
  .asset-list {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .asset-item {
    flex-direction: row;
    justify-content: flex-start;
    padding: 6px 8px;
    gap: 8px;
  }

  .asset-icon {
    width: 24px;
    height: 24px;
    margin-bottom: 0;
  }

  .asset-name {
    text-align: left;
    margin-bottom: 0;
  }

  .asset-type {
    display: none;
  }
}

/* 中等窄度优化 */
@container asset-list-container (max-width: 250px) {
  .asset-item {
    padding: 8px 6px;
  }

  .asset-icon {
    width: 36px;
    height: 36px;
  }

  .asset-name {
    font-size: 11px;
  }

  .asset-type {
    font-size: 9px;
  }
}

.asset-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 8px;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.2s ease;
  user-select: none;
}

.asset-item:hover {
  background: #2a2d2e;
}

.asset-item.selected {
  background: #094771;
}

.asset-item.selected:hover {
  background: #0e6caa;
}

.asset-icon {
  width: 48px;
  height: 48px;
  color: #cccccc;
  margin-bottom: 8px;
  stroke-width: 1.5;
}

.asset-icon.folder {
  color: #dcb67a;
}

/* 系统文件夹特殊标记 */
.asset-icon.system-folder {
  filter: drop-shadow(0 0 3px rgba(66, 165, 245, 0.5));
  animation: subtle-pulse 3s ease-in-out infinite;
}

@keyframes subtle-pulse {
  0%, 100% {
    filter: drop-shadow(0 0 3px rgba(66, 165, 245, 0.5));
  }
  50% {
    filter: drop-shadow(0 0 6px rgba(66, 165, 245, 0.7));
  }
}

.asset-info {
  flex: 1;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.asset-name {
  font-size: var(--font-size-sm);
  color: #cccccc;
  text-align: center;
  width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-bottom: 4px;
}

.asset-type {
  font-size: var(--font-size-xs);
  color: #858585;
  text-transform: uppercase;
}

.asset-browser-list,
.asset-list {
  overflow-y: auto;
}

.asset-browser-list::-webkit-scrollbar,
.asset-list::-webkit-scrollbar,
.file-tree::-webkit-scrollbar {
  width: 10px;
}

.asset-browser-list::-webkit-scrollbar-track,
.asset-list::-webkit-scrollbar-track,
.file-tree::-webkit-scrollbar-track {
  background: #1e1e1e;
}

.asset-browser-list::-webkit-scrollbar-thumb,
.asset-list::-webkit-scrollbar-thumb,
.file-tree::-webkit-scrollbar-thumb {
  background: #424242;
  border-radius: 5px;
}

.asset-browser-list::-webkit-scrollbar-thumb:hover,
.asset-list::-webkit-scrollbar-thumb:hover,
.file-tree::-webkit-scrollbar-thumb:hover {
  background: #4e4e4e;
}