diff --git a/src/views/bussiness-data/bussiness.vue b/src/views/bussiness-data/bussiness.vue
index 08a65a2..cb61fc2 100644
--- a/src/views/bussiness-data/bussiness.vue
+++ b/src/views/bussiness-data/bussiness.vue
@@ -37,7 +37,7 @@
 
       <div class="folder-content">
         <!-- 加载状态 -->
-        <a-skeleton :loading="loading && folderList.length === 0" :rows="5" v-if="loading" animation="pulse">
+        <a-skeleton :loading="loading && folderList.length === 0" :rows="5" v-if="loading" :animation="true">
           <template #skeleton>
             <div class="skeleton-item flex items-center px-4 py-3" v-for="i in 5" :key="i">
               <div class="w-6 h-6 rounded bg-gray-200 mr-3"></div>
@@ -53,51 +53,53 @@
           </a-typography-text>
         </div>
         
+
+        
         <a-empty v-if="!loading && folderList.length === 0" :description="searchKeyword ? '未找到匹配的文件夹' : '暂无文件夹'" />
         
-        <a-list v-if="!loading && folderList.length > 0" class="folder-list">
-          <!-- 文件夹列表 -->
-          <a-list-item 
-            v-for="folder in folderList" 
-            :key="folder.id"
-            :class="['folder-list-item', { 'active': currentFolderId === folder.id }]"
-            @click="handleFolderClick(folder.id)"
-            :tooltip="sidebarCollapsed ? folder.name : ''"  
-          >
-            <!-- 第一行：文件夹图标和名称 -->
-            <div class="folder-main-info">
-              <div class="folder-icon-wrapper">
-                <IconFolder class="folder-icon" :style="{ color: folderColor }" />
-              </div>
-              <span v-if="!sidebarCollapsed" class="folder-name">{{ folder.name }}</span>
-            </div>
-            
-            <!-- 第二行：文件夹操作按钮 -->
-            <div v-if="!sidebarCollapsed" class="folder-actions-row">
+                <!-- 树形文件夹结构 -->
+        <div v-if="!loading && folderList.length > 0" class="folder-tree-container">
+
+          <a-tree
+            :data="folderTreeData"
+            :selected-keys="currentFolderId ? [currentFolderId] : []"
+            :field-names="{ key: 'key', title: 'title', children: 'children' }"
+            :show-line="!sidebarCollapsed"
+            :block-node="true"
+            :default-expand-all="true"
+            @select="handleFolderSelect"
+            @dblclick="handleFolderDoubleClick"
+            class="folder-tree"
+            :class="{ 'collapsed': sidebarCollapsed }"
+          />
+          
+          <!-- 文件夹操作按钮 -->
+          <div v-if="currentFolderId && currentFolderId !== '0'" class="folder-actions-bar" style="padding: 8px; border-top: 1px solid #e5e6eb; margin-top: 8px;">
+            <a-space>
               <a-button 
                 type="text" 
-                shape="circle" 
                 size="small" 
-                @click.stop="handleRenameFolder(folder, folder.id, folder.name)"
+                @click="handleRenameCurrentFolder"
                 tooltip="重命名"
-                class="action-btn"
               >
-                <icon-edit />
+                <template #icon><icon-edit /></template>
+                重命名
               </a-button>
               <a-button 
                 type="text" 
-                shape="circle" 
                 size="small" 
-                @click.stop="handleDeleteFolder(folder)"
+                @click="handleDeleteCurrentFolder"
                 tooltip="删除"
                 status="danger"
-                class="action-btn"
               >
-                <icon-delete />
+                <template #icon><icon-delete /></template>
+                删除
               </a-button>
-            </div>
-          </a-list-item>
-        </a-list>
+            </a-space>
+          </div>
+          
+
+        </div>
       </div>
 
       <!-- 侧边栏底部分页控件 -->
@@ -108,7 +110,8 @@
           </a-typography-text>
         </div>
         
-        <div class="pagination-controls">
+        <!-- 隐藏分页控件，因为现在获取所有文件夹 -->
+        <!-- <div class="pagination-controls">
           <a-pagination
             :current="currentPage"
             :page-size="pageSize"
@@ -120,7 +123,7 @@
             size="small"
             show-total
           />
-        </div>
+        </div> -->
       </div>
     </a-layout-sider>
 
@@ -128,8 +131,14 @@
       <a-layout-header class="file-header">
         <div class="breadcrumbs">
           <a-breadcrumb>
-            <a-breadcrumb-item>知识库</a-breadcrumb-item>
-            <a-breadcrumb-item>{{ currentFolderName }}</a-breadcrumb-item>
+            <a-breadcrumb-item 
+              v-for="(item, index) in breadcrumbPath" 
+              :key="index"
+              :class="{ 'clickable': index < breadcrumbPath.length - 1 }"
+              @click="handleBreadcrumbClick(index)"
+            >
+              {{ item }}
+            </a-breadcrumb-item>
           </a-breadcrumb>
           <a-button 
             type="text" 
@@ -369,20 +378,18 @@
           <a-input v-model="folderForm.name" placeholder="输入文件夹名称" max-length="50" />
         </a-form-item>
         <a-form-item label="父级目录" field="parentId" :rules="folderRules.parentId">
-          <a-select
+          <a-tree-select
             v-model="folderForm.parentId"
             placeholder="请选择父级目录"
+            :data="folderTreeSelectData"
+            :field-names="{ key: 'id', title: 'name', children: 'children' }"
+            allow-clear
+            :tree-props="{ showLine: true }"
           >
-            <a-option value="0">根目录</a-option>
-            <a-option 
-              v-for="folder in folderList" 
-              :key="folder.id" 
-              :value="folder.id"
-              v-if="!folderForm.id || folder.id !== folderForm.id"
-            >
-              {{ folder.name }}
-            </a-option>
-          </a-select>
+            <template #title="{ node }">
+              <span>{{ node?.title || node?.name }}</span>
+            </template>
+          </a-tree-select>
         </a-form-item>
       </a-form>
     </a-modal>
@@ -592,7 +599,8 @@ import {
 const folderList = ref([]);
 const fileList = ref([]);
 const currentFolderId = ref('');
-const currentFolderName = ref('');
+// 移除currentFolderName，现在使用面包屑导航
+// const currentFolderName = ref('');
 const loading = ref(false);
 const folderDialogVisible = ref(false);
 const uploadDialogVisible = ref(false);
@@ -664,6 +672,111 @@ const canUpload = computed(() => {
   return hasFiles.value && !uploading.value && uploadForm.folderId;
 });
 
+// 计算属性：将平铺的文件夹数据转换为树形结构
+const folderTreeData = computed(() => {
+  console.log('=== folderTreeData计算属性执行 ===');
+  console.log('folderList.value:', folderList.value);
+  console.log('folderList.value.length:', folderList.value?.length);
+  
+  if (!folderList.value || folderList.value.length === 0) {
+    console.log('folderList为空，返回空数组');
+    return [];
+  }
+
+  // 创建文件夹映射表
+  const folderMap = new Map();
+  const rootFolders = [];
+
+  console.log('=== 开始创建文件夹映射 ===');
+  // 首先创建所有文件夹的映射
+  folderList.value.forEach((folder, index) => {
+    console.log(`处理第${index + 1}个文件夹:`, folder);
+    // 确保文件夹数据完整
+    if (folder && folder.id && folder.name) {
+      const node = {
+        key: folder.id,        // Tree组件需要的key字段
+        title: folder.name,    // Tree组件需要的title字段
+        children: [],          // Tree组件需要的children字段
+        // 保留原始字段用于其他功能
+        id: folder.id,
+        name: folder.name,
+        parentId: folder.parentId
+      };
+      folderMap.set(folder.id, node);
+      console.log(`✅ 成功添加文件夹到映射: ${folder.name} (ID: ${folder.id})`);
+    } else {
+      console.warn('❌ 跳过不完整的文件夹数据:', folder);
+    }
+  });
+
+  console.log('=== 开始构建树形结构 ===');
+  console.log('文件夹映射表大小:', folderMap.size);
+  
+  // 构建树形结构
+  folderList.value.forEach((folder, index) => {
+    console.log(`构建第${index + 1}个文件夹的树形结构:`, folder);
+    // 确保文件夹数据完整
+    if (!folder || !folder.id || !folder.name) {
+      console.warn('❌ 跳过不完整的文件夹数据:', folder);
+      return;
+    }
+    
+    const node = folderMap.get(folder.id);
+    if (!node) {
+      console.warn('❌ 找不到文件夹节点:', folder.id);
+      return;
+    }
+    
+    console.log(`处理文件夹: ${folder.name} (ID: ${folder.id}, ParentID: ${folder.parentId})`);
+    
+    if (folder.parentId === '0' || folder.parentId === 0) {
+      // 根文件夹
+      rootFolders.push(node);
+      console.log(`✅ 添加为根文件夹: ${folder.name}`);
+    } else {
+      // 子文件夹
+      const parent = folderMap.get(folder.parentId);
+      if (parent) {
+        parent.children.push(node);
+        console.log(`✅ 添加为子文件夹: ${folder.name} -> ${parent.name}`);
+      } else {
+        // 如果找不到父文件夹，当作根文件夹处理
+        console.warn('⚠️ 找不到父文件夹，将文件夹作为根文件夹:', folder.name, folder.parentId);
+        rootFolders.push(node);
+      }
+    }
+  });
+
+  console.log('=== 树形结构构建完成 ===');
+  console.log('根文件夹数量:', rootFolders.length);
+  console.log('构建的树形结构:', rootFolders);
+  
+  // 验证树形结构中的节点数据
+  rootFolders.forEach((root, index) => {
+    console.log(`根文件夹${index + 1}:`, {
+      id: root.id,
+      name: root.name,
+      childrenCount: root.children?.length || 0
+    });
+  });
+  
+  return rootFolders;
+});
+
+// 计算属性：树形选择器数据（包含根目录选项）
+const folderTreeSelectData = computed(() => {
+  const rootOption = {
+    key: '0',        // Tree组件需要的key字段
+    title: '根目录',  // Tree组件需要的title字段
+    children: [],    // Tree组件需要的children字段
+    // 保留原始字段用于其他功能
+    id: '0',
+    name: '根目录'
+  };
+  
+  return [rootOption, ...folderTreeData.value];
+});
+
 // 搜索相关
 const searchKeyword = ref(''); // 文件夹搜索关键词
 const fileSearchKeyword = ref(''); // 文件搜索关键词
@@ -682,7 +795,7 @@ const initData = async () => {
     
     const apiParams = {
       page: currentPage.value,
-      pageSize: pageSize.value,
+      pageSize: 1000, // 修改为足够大的值，确保获取所有文件夹
       folderName: searchKeyword.value.trim() || undefined
     };
     
@@ -701,11 +814,43 @@ const initData = async () => {
     
     // 根据后端返回的数据结构处理
     if (folderRes.code === 200 && folderRes.data) {
-      const processedFolders = folderRes.data.rows.map(folder => ({
-        id: String(folder.folderId),
-        name: folder.folderName,
-        parentId: String(folder.parentId || 0)
-      }));
+      console.log('=== 开始处理数据 ===');
+      console.log('folderRes.data:', folderRes.data);
+      console.log('folderRes.data.rows:', folderRes.data.rows);
+      console.log('folderRes.data.rows类型:', typeof folderRes.data.rows);
+      console.log('folderRes.data.rows长度:', folderRes.data.rows?.length);
+      
+      // 检查数据结构
+      if (!folderRes.data.rows || !Array.isArray(folderRes.data.rows)) {
+        console.error('API返回的数据结构不正确，rows字段不存在或不是数组');
+        console.log('可用的字段:', Object.keys(folderRes.data));
+        folderList.value = [];
+        totalFolders.value = 0;
+        return;
+      }
+      
+      const processedFolders = folderRes.data.rows.map((folder, index) => {
+        console.log(`处理第${index + 1}个原始文件夹数据:`, folder);
+        console.log(`原始数据字段:`, Object.keys(folder));
+        console.log(`folderId:`, folder.folderId);
+        console.log(`folderName:`, folder.folderName);
+        console.log(`parentId:`, folder.parentId);
+        
+        // 确保所有必需字段都存在
+        if (!folder.folderId || !folder.folderName) {
+          console.warn('❌ 跳过不完整的文件夹数据:', folder);
+          return null;
+        }
+        
+        const processedFolder = {
+          id: String(folder.folderId),
+          name: String(folder.folderName),
+          parentId: String(folder.parentId || 0)
+        };
+        
+        console.log(`✅ 处理后的文件夹数据:`, processedFolder);
+        return processedFolder;
+      }).filter(Boolean); // 过滤掉null值
       
       folderList.value = processedFolders;
       totalFolders.value = Number(folderRes.data.total) || 0;
@@ -720,6 +865,8 @@ const initData = async () => {
       totalFolders.value = 0;
       console.log('API响应异常，清空列表');
       console.log('响应码不是200或数据为空');
+      console.log('folderRes.code:', folderRes.code);
+      console.log('folderRes.data:', folderRes.data);
     }
   } catch (error) {
     console.error('初始化文件夹数据失败:', error);
@@ -784,6 +931,7 @@ const handleSearchClear = () => {
   }
   currentPage.value = 1;
   console.log('重置页码为:', currentPage.value);
+  // 清除搜索后立即刷新数据，显示所有文件夹
   initData();
 };
 
@@ -854,13 +1002,6 @@ const loadFiles = async (folderId) => {
     }
     
     currentFolderId.value = folderId;
-
-    if (folderId === '0') {
-      currentFolderName.value = '根目录';
-    } else {
-      const folder = folderList.value.find(f => f.id === folderId);
-      currentFolderName.value = folder ? folder.name : '未知文件夹';
-    }
   } catch (error) {
     console.error('加载文件失败:', error);
     Message.error('服务开小差，请稍后再试');
@@ -873,14 +1014,141 @@ const loadFiles = async (folderId) => {
 
 
 // 文件夹点击事件
-const handleFolderClick = (folderId) => {
-  const id = String(folderId);
-  if (currentFolderId.value !== id) {
-    fileCurrentPage.value = 1;
-    // 切换文件夹时清空文件搜索关键词
-    fileSearchKeyword.value = '';
+// const handleFolderClick = (folderId) => {
+//   const id = String(folderId);
+//   if (currentFolderId.value !== id) {
+//     fileCurrentPage.value = 1;
+//     // 切换文件夹时清空文件搜索关键词
+//     fileSearchKeyword.value = '';
+//   }
+//   currentFolderId.value = id;
+// };
+
+// 树形文件夹选择事件
+const handleFolderSelect = (selectedKeys, info) => {
+  if (selectedKeys.length > 0) {
+    const folderId = selectedKeys[0];
+    if (currentFolderId.value !== folderId) {
+      fileCurrentPage.value = 1;
+      // 切换文件夹时清空文件搜索关键词
+      fileSearchKeyword.value = '';
+    }
+    currentFolderId.value = folderId;
+    loadFiles(folderId);
+  }
+};
+
+// 文件夹双击处理
+const handleFolderDoubleClick = (info) => {
+  console.log('文件夹双击:', info);
+  
+  const { node } = info;
+  if (!node) return;
+  
+  // 显示操作选项
+  Modal.confirm({
+    title: '文件夹操作',
+    content: `请选择对文件夹"${node.title}"的操作`,
+    okText: '重命名',
+    cancelText: '删除',
+    onOk: () => handleRenameFolder(node),
+    onCancel: () => handleDeleteFolder(node)
+  });
+};
+
+// 重命名当前选中的文件夹
+const handleRenameCurrentFolder = () => {
+  if (!currentFolderId.value || currentFolderId.value === '0') {
+    Message.warning('请先选择一个文件夹');
+    return;
+  }
+  
+  // 从folderList中找到当前选中的文件夹
+  const currentFolder = folderList.value.find(folder => folder.id === currentFolderId.value);
+  if (!currentFolder) {
+    Message.error('找不到当前文件夹信息');
+    return;
+  }
+  
+  // 构造node对象
+  const node = {
+    key: currentFolder.id,
+    title: currentFolder.name,
+    id: currentFolder.id,
+    name: currentFolder.name
+  };
+  
+  handleRenameFolder(node);
+};
+
+// 删除当前选中的文件夹
+const handleDeleteCurrentFolder = () => {
+  if (!currentFolderId.value || currentFolderId.value === '0') {
+    Message.warning('请先选择一个文件夹');
+    return;
+  }
+  
+  // 从folderList中找到当前选中的文件夹
+  const currentFolder = folderList.value.find(folder => folder.id === currentFolderId.value);
+  if (!currentFolder) {
+    Message.error('找不到当前文件夹信息');
+    return;
+  }
+  
+  // 构造node对象
+  const node = {
+    key: currentFolder.id,
+    title: currentFolder.name,
+    id: currentFolder.id,
+    name: currentFolder.name
+  };
+  
+  handleDeleteFolder(node);
+};
+
+
+
+// 计算属性：面包屑导航路径
+const breadcrumbPath = computed(() => {
+  if (!currentFolderId.value || currentFolderId.value === '0') {
+    return ['知识库', '根目录'];
+  }
+
+  const path = ['知识库'];
+  let currentId = currentFolderId.value;
+  
+  // 从当前文件夹向上查找父级路径
+  while (currentId && currentId !== '0') {
+    const folder = folderList.value.find(f => f.id === currentId);
+    if (folder) {
+      path.unshift(folder.name);
+      currentId = folder.parentId;
+    } else {
+      break;
+    }
+  }
+  
+  return path;
+});
+
+// 面包屑点击事件处理
+const handleBreadcrumbClick = (index) => {
+  if (index === 0) {
+    // 点击"知识库"，回到根目录
+    currentFolderId.value = '0';
+    loadFiles('0');
+  } else {
+    // 点击其他路径项，需要找到对应的文件夹ID
+    const targetPath = breadcrumbPath.value.slice(0, index + 1);
+    const targetFolderName = targetPath[targetPath.length - 1];
+    
+    // 查找对应的文件夹
+    const targetFolder = folderList.value.find(folder => folder.name === targetFolderName);
+    if (targetFolder) {
+      currentFolderId.value = targetFolder.id;
+      loadFiles(targetFolder.id);
+    }
   }
-  currentFolderId.value = id;
 };
 
 // 重命名对话框状态
@@ -901,22 +1169,42 @@ const renameFileForm = reactive({
 });
 
 // 文件夹重命名处理函数
-const handleRenameFolder = (folder, folderId, currentName) => {
-  console.log('handleRenameFolder 被调用:', { folder, folderId, currentName });
+const handleRenameFolder = (folder) => {
+  console.log('重命名文件夹:', folder);
+  
+  if (!folder) {
+    Message.error('文件夹信息不能为空');
+    return;
+  }
+  
+  const folderId = folder.key || folder.id;
+  const currentName = folder.title || folder.name;
   
-  // 验证参数
   if (!folderId) {
-    console.error('folderId 为空');
     Message.error('文件夹ID不能为空');
     return;
   }
   
   if (!currentName) {
-    console.error('currentName 为空');
-    Message.error('当前文件夹名称不能为空');
+    Message.error('文件夹名称不能为空');
     return;
   }
   
+  if (!currentName) {
+    console.error('❌ currentName 为空');
+    console.error('尝试从folder对象获取名称...');
+    const fallbackName = folder?.title || folder?.name;
+    console.error('fallbackName:', fallbackName);
+    
+    if (!fallbackName) {
+      Message.error('当前文件夹名称不能为空');
+      return;
+    } else {
+      console.log('✅ 使用fallbackName:', fallbackName);
+      currentName = fallbackName;
+    }
+  }
+  
   // 先显示一个简单的提示，确认函数被调用
   Message.info('重命名功能被触发');
   
@@ -961,13 +1249,14 @@ const confirmRename = async () => {
     if (result && result.code === 200) {
       if (isRoot) {
         Message.success('根目录重命名成功');
-        currentFolderName.value = newName.trim();
+        // 移除对currentFolderName的设置，现在使用面包屑导航
+        // currentFolderName.value = newName.trim();
       } else {
         Message.success('文件夹重命名成功');
-        // 如果重命名的是当前选中的文件夹，更新显示名称
-        if (currentFolderId.value === folderId) {
-          currentFolderName.value = newName.trim();
-        }
+        // 移除对currentFolderName的设置，现在使用面包屑导航
+        // if (currentFolderId.value === folderId) {
+        //   currentFolderName.value = newName.trim();
+        // }
       }
       
       initData(); // 刷新文件夹列表
@@ -1015,6 +1304,10 @@ const handleFilePageSizeChange = (current, size) => {
 const refreshData = async () => {
   refreshing.value = true;
   try {
+    // 强制清空搜索关键词，确保显示所有文件夹
+    searchKeyword.value = '';
+    currentPage.value = 1;
+    
     await initData();
     if (currentFolderId.value) {
       await loadFiles(currentFolderId.value);
@@ -1035,14 +1328,22 @@ const submitFolderForm = async () => {
       await updateFolderApi(folderForm.id, folderForm.name);
       Message.success('文件夹重命名成功');
     } else {
-      await createFolderApi({
+      const result = await createFolderApi({
         name: folderForm.name,
         parentId: folderForm.parentId
       });
       Message.success('文件夹创建成功');
+      
+      // 新建文件夹后，刷新数据并自动选中新建的文件夹
+      await initData();
+      
+      // 如果有返回新建文件夹的ID，自动选中它
+      if (result.data && result.data.folderId) {
+        currentFolderId.value = String(result.data.folderId);
+        loadFiles(currentFolderId.value);
+      }
     }
     folderDialogVisible.value = false;
-    initData();
   } catch (error) {
     console.error('文件夹操作失败:', error);
     Message.error(folderForm.id ? '重命名失败' : '创建失败');
@@ -1669,7 +1970,7 @@ const showAudioPreview = (url, fileName) => {
           marginBottom: '20px',
           color: '#165DFF'
         }
-      }, '🎵'),
+      }, '��'),
       
       // 音频播放器
       h('audio', {
@@ -1883,16 +2184,17 @@ const confirmRenameFile = async () => {
 const handleDeleteFolder = (folder) => {
   Modal.confirm({
     title: '确认删除',
-    content: `确定要删除文件夹「${folder.name}」吗？删除后无法恢复，文件夹内的所有文件也将被删除。`,
+    content: `确定要删除文件夹「${folder.title || folder.name}」吗？删除后无法恢复，文件夹内的所有文件也将被删除。`,
     onOk: async () => {
       try {
-        const result = await deleteFolderApi(folder.id);
+        const result = await deleteFolderApi(folder.key || folder.id);
         if (result.code === 200) {
           Message.success('文件夹删除成功');
           // 如果删除的是当前选中的文件夹，切换到根目录
-          if (currentFolderId.value === folder.id) {
+          if (currentFolderId.value === (folder.key || folder.id)) {
             currentFolderId.value = '0';
-            currentFolderName.value = '根目录';
+            // 移除对currentFolderName的设置，现在使用面包屑导航
+            // currentFolderName.value = '根目录';
             fileList.value = [];
             totalFiles.value = 0;
           }
@@ -2067,6 +2369,8 @@ onMounted(() => {
   background-color: var(--color-bg-2);
 }
 
+
+
 /* 侧边栏样式 */
 .folder-sidebar {
   box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
@@ -3208,4 +3512,110 @@ onMounted(() => {
     }
   }
 }
+
+/* 树形文件夹结构 */
+.folder-tree-container {
+  padding: 8px;
+  background: var(--color-bg-2);
+  border-radius: 6px;
+  margin: 8px;
+  overflow: hidden;
+}
+
+.tree-node-content {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  width: 100%;
+  padding: 4px 0;
+}
+
+.folder-name {
+  flex: 1;
+  margin-left: 4px;
+  font-size: 14px;
+  color: var(--color-text-1);
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.folder-actions {
+  display: flex;
+  gap: 4px;
+  opacity: 0;
+  transition: opacity 0.2s ease;
+}
+
+.tree-node-content:hover .folder-actions {
+  opacity: 1;
+}
+
+.folder-actions .action-btn {
+  width: 20px;
+  height: 20px;
+  color: var(--color-text-3);
+  border-radius: 4px;
+  transition: all 0.2s ease;
+  
+  &:hover {
+    color: var(--color-primary);
+    background: var(--color-fill-3);
+    transform: scale(1.1);
+  }
+}
+
+.folder-tree {
+  :deep(.arco-tree-node-content) {
+    padding: 4px 8px;
+    border-radius: 4px;
+    transition: background-color 0.2s ease;
+    
+    &:hover {
+      background-color: var(--color-fill-2);
+    }
+  }
+  
+  :deep(.arco-tree-node-selected .arco-tree-node-content) {
+    background-color: var(--color-primary-light-1);
+    color: var(--color-primary);
+  }
+  
+  :deep(.arco-tree-node-indent) {
+    padding-left: 8px;
+  }
+  
+  &.collapsed {
+    :deep(.arco-tree-node-content) {
+      padding: 8px 4px;
+      justify-content: center;
+    }
+    
+    :deep(.arco-tree-node-title) {
+      display: none;
+    }
+    
+    :deep(.arco-tree-node-switcher) {
+      display: none;
+    }
+    
+    :deep(.arco-tree-node-indent) {
+      display: none;
+    }
+  }
+}
+
+/* 面包屑导航样式 */
+.breadcrumbs {
+  .clickable {
+    cursor: pointer;
+    color: var(--color-primary);
+    transition: color 0.2s ease;
+    
+    &:hover {
+      color: var(--color-primary-light-1);
+      text-decoration: underline;
+    }
+  }
+}
 </style>