diff --git a/backend/config/config-manager.js b/backend/config/config-manager.js
index 66c3bfe..4eed7e8 100644
--- a/backend/config/config-manager.js
+++ b/backend/config/config-manager.js
@@ -18,6 +18,9 @@ class ConfigManager {
       this.configDir = path.join(__dirname, 'user-config.json')
     }
     
+    // 确保配置目录存在
+    this.ensureConfigDir()
+    
     this.defaultConfig = {
       downloadDir: "./downloads",
       fileStructure: "artist/artwork",
@@ -30,6 +33,21 @@ class ConfigManager {
     }
   }
 
+  /**
+   * 确保配置目录存在
+   */
+  ensureConfigDir() {
+    try {
+      const configDirPath = path.dirname(this.configDir)
+      if (!require('fs').existsSync(configDirPath)) {
+        require('fs').mkdirSync(configDirPath, { recursive: true })
+        console.log('配置目录创建成功:', configDirPath)
+      }
+    } catch (error) {
+      console.error('创建配置目录失败:', error)
+    }
+  }
+
   /**
    * 初始化配置文件
    * 如果配置文件不存在，则创建默认配置
@@ -55,14 +73,27 @@ class ConfigManager {
       const configDirPath = path.dirname(this.configDir)
       await fs.mkdir(configDirPath, { recursive: true })
       
-      // 写入默认配置
-      await fs.writeFile(
-        this.configDir,
-        JSON.stringify(this.defaultConfig, null, 2),
-        'utf8'
-      )
+      // 检查目录是否创建成功
+      try {
+        await fs.access(configDirPath)
+        console.log('配置目录确认存在:', configDirPath)
+      } catch (accessError) {
+        console.error('配置目录访问失败:', accessError)
+        throw new Error(`无法访问配置目录: ${configDirPath}`)
+      }
       
-      console.log('默认配置文件创建成功:', this.configDir)
+      // 写入默认配置
+      const configContent = JSON.stringify(this.defaultConfig, null, 2)
+      await fs.writeFile(this.configDir, configContent, 'utf8')
+      
+      // 验证文件是否写入成功
+      try {
+        await fs.access(this.configDir)
+        console.log('默认配置文件创建成功:', this.configDir)
+      } catch (verifyError) {
+        console.error('配置文件验证失败:', verifyError)
+        throw new Error('配置文件创建后无法访问')
+      }
     } catch (error) {
       console.error('创建默认配置文件失败:', error)
       throw error
@@ -74,12 +105,30 @@ class ConfigManager {
    */
   async readConfig() {
     try {
+      // 首先检查文件是否存在
+      const exists = await this.configExists()
+      if (!exists) {
+        console.log('配置文件不存在，创建默认配置...')
+        await this.createDefaultConfig()
+      }
+      
       const configData = await fs.readFile(this.configDir, 'utf8')
-      return JSON.parse(configData)
+      const config = JSON.parse(configData)
+      
+      // 合并默认配置，确保所有必要的字段都存在
+      return { ...this.defaultConfig, ...config }
     } catch (error) {
       console.error('读取配置文件失败:', error)
-      // 如果读取失败，返回默认配置
-      return { ...this.defaultConfig }
+      console.log('使用默认配置...')
+      // 如果读取失败，尝试创建默认配置
+      try {
+        await this.createDefaultConfig()
+        return { ...this.defaultConfig }
+      } catch (createError) {
+        console.error('创建默认配置也失败:', createError)
+        // 最后返回内存中的默认配置
+        return { ...this.defaultConfig }
+      }
     }
   }
 
diff --git a/backend/routes/repository.js b/backend/routes/repository.js
index 425aa2d..777e7f3 100644
--- a/backend/routes/repository.js
+++ b/backend/routes/repository.js
@@ -50,13 +50,24 @@ router.post('/config/reset', async (req, res) => {
 // 获取仓库统计信息
 router.get('/stats', async (req, res) => {
   try {
-    const stats = await repositoryService.getStats()
+    const { forceRefresh } = req.query
+    const stats = await repositoryService.getStats(forceRefresh === 'true')
     res.json(ResponseUtil.success(stats))
   } catch (error) {
     res.status(500).json(ResponseUtil.error(error.message))
   }
 })
 
+// 清除磁盘使用情况缓存
+router.post('/stats/clear-cache', async (req, res) => {
+  try {
+    const result = await repositoryService.clearDiskUsageCache()
+    res.json(ResponseUtil.success(result))
+  } catch (error) {
+    res.status(500).json(ResponseUtil.error(error.message))
+  }
+})
+
 // 获取所有作者列表
 router.get('/artists', async (req, res) => {
   try {
diff --git a/backend/services/repository.js b/backend/services/repository.js
index 246dc8f..ff03507 100644
--- a/backend/services/repository.js
+++ b/backend/services/repository.js
@@ -10,6 +10,16 @@ class RepositoryService {
     // 初始化配置管理器
     this.configManager = new ConfigManager()
     this.config = null
+    
+    // 磁盘使用情况缓存
+    this.diskUsageCache = {
+      data: null,
+      timestamp: 0,
+      cacheDuration: 5 * 60 * 1000 // 5分钟缓存
+    }
+    
+    // 缓存文件路径
+    this.cacheFilePath = null
   }
 
   // 获取当前工作目录（基于配置）
@@ -37,6 +47,12 @@ class RepositoryService {
       const currentBaseDir = this.getCurrentBaseDir()
       await fs.mkdir(currentBaseDir, { recursive: true })
       
+      // 初始化缓存文件路径
+      this.cacheFilePath = path.join(path.dirname(this.configManager.getConfigPath()), 'disk-usage-cache.json')
+      
+      // 加载持久化缓存
+      await this.loadPersistentCache()
+      
       return { success: true, message: '仓库初始化成功' }
     } catch (error) {
       throw new Error(`仓库初始化失败: ${error.message}`)
@@ -49,8 +65,17 @@ class RepositoryService {
       this.config = await this.configManager.readConfig()
     } catch (error) {
       console.error('加载配置失败:', error)
-      // 如果加载失败，使用默认配置
-      this.config = await this.configManager.readConfig()
+      // 如果加载失败，使用默认配置对象
+      this.config = {
+        downloadDir: "./downloads",
+        fileStructure: "artist/artwork",
+        namingPattern: "{artist_name}/{artwork_id}_{title}",
+        maxFileSize: 0,
+        allowedExtensions: [".jpg", ".png", ".gif", ".webp"],
+        autoMigration: false,
+        migrationRules: [],
+        lastUpdated: new Date().toISOString()
+      }
     }
   }
 
@@ -87,14 +112,14 @@ class RepositoryService {
   }
 
   // 获取仓库统计信息
-  async getStats() {
+  async getStats(forceRefresh = false) {
     try {
       const stats = await this.scanRepository()
       return {
         totalArtworks: stats.artworks.length,
         totalArtists: stats.artists.length,
         totalSize: stats.totalSize,
-        diskUsage: await this.getDiskUsage(),
+        diskUsage: await this.getDiskUsage(forceRefresh),
         lastScan: new Date().toISOString()
       }
     } catch (error) {
@@ -219,39 +244,54 @@ class RepositoryService {
   }
 
   // 获取磁盘使用情况
-  async getDiskUsage() {
+  async getDiskUsage(forceRefresh = false) {
     try {
       const currentBaseDir = this.getCurrentBaseDir()
       
-      // 尝试使用 fs.statfs (Node.js 内置方法)
-      try {
-        const stats = await fs.statfs(currentBaseDir)
-        const total = stats.blocks * stats.bsize
-        const free = stats.bavail * stats.bsize
-        const used = total - free
-        
-        return {
-          total,
-          used,
-          free,
-          usagePercent: Math.round((used / total) * 100)
+      // 检查是否在打包环境中
+      const isPkg = process.pkg !== undefined
+      
+      // 尝试使用 fs.statfs (Node.js 内置方法) - 最快的方法
+      if (!isPkg && typeof fs.statfs === 'function') {
+        try {
+          const stats = await fs.statfs(currentBaseDir)
+          const total = stats.blocks * stats.bsize
+          const free = stats.bavail * stats.bsize
+          const used = total - free
+          
+          return {
+            total,
+            used,
+            free,
+            usagePercent: Math.round((used / total) * 100)
+          }
+        } catch (statfsError) {
+          console.log('fs.statfs 调用失败:', statfsError.message)
         }
-      } catch (statfsError) {
-        console.log('fs.statfs 不可用，尝试使用系统命令:', statfsError.message)
-        
-        // 如果 fs.statfs 不可用，尝试使用系统命令
-        if (process.platform === 'win32') {
-          // Windows 系统
-          try {
-            const { stdout } = await execAsync('wmic logicaldisk get size,freespace,caption')
-            const lines = stdout.trim().split('\n').slice(1) // 跳过标题行
-            
-            for (const line of lines) {
-              const parts = line.trim().split(/\s+/)
-              if (parts.length >= 3) {
-                const caption = parts[0]
-                const freeSpace = parseInt(parts[1])
-                const totalSize = parseInt(parts[2])
+      } else {
+        console.log('fs.statfs 在打包环境中不可用，尝试使用系统命令')
+      }
+      
+      // 如果 fs.statfs 不可用，尝试使用系统命令
+      if (process.platform === 'win32') {
+        // Windows 系统 - 优先使用最快的命令
+        const methods = [
+          // 方法1: 使用 PowerShell (通常比 wmic 快)
+          async () => {
+            try {
+              // 设置超时，避免长时间等待
+              const { stdout } = await Promise.race([
+                execAsync('powershell "Get-WmiObject -Class Win32_LogicalDisk | Select-Object Size,FreeSpace,Caption | ConvertTo-Json"'),
+                new Promise((_, reject) => setTimeout(() => reject(new Error('PowerShell 超时')), 3000))
+              ])
+              
+              const disks = JSON.parse(stdout)
+              const diskArray = Array.isArray(disks) ? disks : [disks]
+              
+              for (const disk of diskArray) {
+                const caption = disk.Caption
+                const freeSpace = parseInt(disk.FreeSpace)
+                const totalSize = parseInt(disk.Size)
                 
                 // 检查当前目录是否在这个磁盘上
                 if (currentBaseDir.toUpperCase().startsWith(caption.toUpperCase())) {
@@ -264,39 +304,101 @@ class RepositoryService {
                   }
                 }
               }
+            } catch (error) {
+              console.log('PowerShell 方法失败:', error.message)
+              throw error
             }
-          } catch (wmicError) {
-            console.log('wmic 命令失败:', wmicError.message)
-          }
-        } else {
-          // Unix/Linux 系统
-          try {
-            const { stdout } = await execAsync(`df -B1 "${currentBaseDir}" | tail -1`)
-            const parts = stdout.trim().split(/\s+/)
-            if (parts.length >= 4) {
-              const total = parseInt(parts[1])
-              const used = parseInt(parts[2])
-              const free = parseInt(parts[3])
+          },
+          
+          // 方法2: 使用 wmic (备用方案)
+          async () => {
+            try {
+              const { stdout } = await Promise.race([
+                execAsync('wmic logicaldisk get size,freespace,caption /format:csv'),
+                new Promise((_, reject) => setTimeout(() => reject(new Error('wmic 超时')), 3000))
+              ])
               
-              return {
-                total,
-                used,
-                free,
-                usagePercent: Math.round((used / total) * 100)
+              const lines = stdout.trim().split('\n').slice(1) // 跳过标题行
+              
+              for (const line of lines) {
+                const parts = line.split(',')
+                if (parts.length >= 3) {
+                  const caption = parts[0].trim()
+                  const freeSpace = parseInt(parts[1])
+                  const totalSize = parseInt(parts[2])
+                  
+                  // 检查当前目录是否在这个磁盘上
+                  if (currentBaseDir.toUpperCase().startsWith(caption.toUpperCase())) {
+                    const used = totalSize - freeSpace
+                    return {
+                      total: totalSize,
+                      used,
+                      free: freeSpace,
+                      usagePercent: Math.round((used / totalSize) * 100)
+                    }
+                  }
+                }
               }
+            } catch (error) {
+              console.log('wmic 方法失败:', error.message)
+              throw error
             }
-          } catch (dfError) {
-            console.log('df 命令失败:', dfError.message)
+          }
+        ]
+        
+        // 尝试所有方法，但限制总时间
+        for (const method of methods) {
+          try {
+            const result = await Promise.race([
+              method(),
+              new Promise((_, reject) => setTimeout(() => reject(new Error('磁盘信息获取超时')), 5000))
+            ])
+            if (result) {
+              return result
+            }
+          } catch (error) {
+            console.log(`磁盘使用情况获取方法失败:`, error.message)
+            continue
           }
         }
-        
-        // 如果所有方法都失败，返回默认值
-        console.log('无法获取磁盘使用情况，返回默认值')
-        return { total: 0, used: 0, free: 0, usagePercent: 0 }
+      } else {
+        // Unix/Linux 系统
+        try {
+          const { stdout } = await Promise.race([
+            execAsync(`df -B1 "${currentBaseDir}" | tail -1`),
+            new Promise((_, reject) => setTimeout(() => reject(new Error('df 命令超时')), 3000))
+          ])
+          
+          const parts = stdout.trim().split(/\s+/)
+          if (parts.length >= 4) {
+            const total = parseInt(parts[1])
+            const used = parseInt(parts[2])
+            const free = parseInt(parts[3])
+            
+            return {
+              total,
+              used,
+              free,
+              usagePercent: Math.round((used / total) * 100)
+            }
+          }
+        } catch (dfError) {
+          console.log('df 命令失败:', dfError.message)
+        }
       }
+      
+      // 如果系统命令都失败，返回基于缓存的估算值
+      return await this.getCachedDiskUsage(currentBaseDir, forceRefresh)
+      
     } catch (error) {
       console.error('获取磁盘使用情况失败:', error)
-      return { total: 0, used: 0, free: 0, usagePercent: 0 }
+      return { 
+        total: 0, 
+        used: 0, 
+        free: 0, 
+        usagePercent: 0,
+        note: '获取失败'
+      }
     }
   }
 
@@ -625,6 +727,202 @@ class RepositoryService {
     }
   }
 
+  // 加载持久化缓存
+  async loadPersistentCache() {
+    try {
+      if (!this.cacheFilePath) {
+        return
+      }
+      
+      const cacheData = await fs.readFile(this.cacheFilePath, 'utf8')
+      const cache = JSON.parse(cacheData)
+      
+      // 检查缓存是否有效（24小时内）
+      const now = Date.now()
+      const cacheAge = now - cache.timestamp
+      const maxCacheAge = 24 * 60 * 60 * 1000 // 24小时
+      
+      if (cacheAge < maxCacheAge) {
+        this.diskUsageCache.data = cache.data
+        this.diskUsageCache.timestamp = cache.timestamp
+        console.log('已加载持久化缓存，缓存年龄:', Math.round(cacheAge / 1000 / 60), '分钟')
+      } else {
+        console.log('持久化缓存已过期，将重新计算')
+      }
+    } catch (error) {
+      console.log('加载持久化缓存失败，将使用内存缓存:', error.message)
+    }
+  }
+
+  // 保存持久化缓存
+  async savePersistentCache() {
+    try {
+      if (!this.cacheFilePath || !this.diskUsageCache.data) {
+        return
+      }
+      
+      const cacheData = {
+        data: this.diskUsageCache.data,
+        timestamp: this.diskUsageCache.timestamp,
+        savedAt: new Date().toISOString()
+      }
+      
+      await fs.writeFile(this.cacheFilePath, JSON.stringify(cacheData, null, 2), 'utf8')
+      console.log('持久化缓存已保存')
+    } catch (error) {
+      console.error('保存持久化缓存失败:', error.message)
+    }
+  }
+
+  // 清除磁盘使用情况缓存
+  async clearDiskUsageCache() {
+    try {
+      // 清除内存缓存
+      this.diskUsageCache.data = null
+      this.diskUsageCache.timestamp = 0
+      
+      // 删除持久化缓存文件
+      if (this.cacheFilePath) {
+        try {
+          await fs.unlink(this.cacheFilePath)
+          console.log('持久化缓存文件已删除')
+        } catch (error) {
+          console.log('删除持久化缓存文件失败:', error.message)
+        }
+      }
+      
+      return { success: true, message: '缓存已清除' }
+    } catch (error) {
+      throw new Error(`清除缓存失败: ${error.message}`)
+    }
+  }
+
+  // 获取缓存的磁盘使用情况
+  async getCachedDiskUsage(currentBaseDir, forceRefresh = false) {
+    const now = Date.now()
+    
+    // 检查内存缓存是否有效（除非强制刷新）
+    if (!forceRefresh && this.diskUsageCache.data && 
+        (now - this.diskUsageCache.timestamp) < this.diskUsageCache.cacheDuration) {
+      console.log('使用内存缓存的磁盘使用情况')
+      return this.diskUsageCache.data
+    }
+    
+    // 缓存过期或不存在，计算新的值
+    try {
+      // 快速估算：只计算前几层目录
+      const estimatedSize = await this.quickDirectorySizeEstimate(currentBaseDir)
+      
+      // 基于估算值创建磁盘使用情况
+      const estimatedTotal = Math.max(estimatedSize * 200, 100 * 1024 * 1024 * 1024) // 至少100GB
+      const estimatedUsed = estimatedSize
+      const estimatedFree = estimatedTotal - estimatedUsed
+      
+      const result = {
+        total: estimatedTotal,
+        used: estimatedUsed,
+        free: estimatedFree,
+        usagePercent: Math.round((estimatedUsed / estimatedTotal) * 100),
+        note: '基于目录估算（缓存5分钟）'
+      }
+      
+      // 更新内存缓存
+      this.diskUsageCache.data = result
+      this.diskUsageCache.timestamp = now
+      
+      // 保存到持久化缓存
+      await this.savePersistentCache()
+      
+      return result
+    } catch (error) {
+      console.log('快速估算失败，返回默认值:', error.message)
+      return { 
+        total: 0, 
+        used: 0, 
+        free: 0, 
+        usagePercent: 0,
+        note: '无法获取磁盘信息'
+      }
+    }
+  }
+
+  // 快速目录大小估算（只计算前几层）
+  async quickDirectorySizeEstimate(dirPath, maxDepth = 2, currentDepth = 0) {
+    try {
+      if (currentDepth >= maxDepth) {
+        return 0
+      }
+      
+      let totalSize = 0
+      const entries = await fs.readdir(dirPath, { withFileTypes: true })
+      
+      // 限制处理的文件数量，避免过长时间
+      const maxFiles = 1000
+      let processedFiles = 0
+      
+      for (const entry of entries) {
+        if (processedFiles >= maxFiles) {
+          break
+        }
+        
+        const fullPath = path.join(dirPath, entry.name)
+        
+        if (entry.isDirectory()) {
+          totalSize += await this.quickDirectorySizeEstimate(fullPath, maxDepth, currentDepth + 1)
+        } else {
+          try {
+            const stats = await fs.stat(fullPath)
+            totalSize += stats.size
+            processedFiles++
+          } catch (error) {
+            // 忽略无法访问的文件
+          }
+        }
+      }
+      
+      // 如果达到文件数量限制，进行估算
+      if (processedFiles >= maxFiles) {
+        const remainingEntries = entries.length - processedFiles
+        const avgFileSize = totalSize / processedFiles
+        totalSize += remainingEntries * avgFileSize
+      }
+      
+      return totalSize
+    } catch (error) {
+      console.error('快速目录大小估算失败:', error)
+      return 0
+    }
+  }
+
+  // 计算目录大小（完整版本，用于需要精确值时）
+  async calculateDirectorySize(dirPath) {
+    try {
+      let totalSize = 0
+      const entries = await fs.readdir(dirPath, { withFileTypes: true })
+      
+      for (const entry of entries) {
+        const fullPath = path.join(dirPath, entry.name)
+        
+        if (entry.isDirectory()) {
+          totalSize += await this.calculateDirectorySize(fullPath)
+        } else {
+          try {
+            const stats = await fs.stat(fullPath)
+            totalSize += stats.size
+          } catch (error) {
+            // 忽略无法访问的文件
+            console.log(`无法访问文件: ${fullPath}`)
+          }
+        }
+      }
+      
+      return totalSize
+    } catch (error) {
+      console.error('计算目录大小失败:', error)
+      return 0
+    }
+  }
+
   // 获取文件预览URL
   async getFilePreviewUrl(filePath) {
     // 这里可以返回一个代理URL，用于前端预览
diff --git a/ui/dist.zip b/ui/dist.zip
index 121943e..f2f3e49 100644
Binary files a/ui/dist.zip and b/ui/dist.zip differ
diff --git a/ui/src/App.vue b/ui/src/App.vue
index c0c1a10..faef1af 100644
--- a/ui/src/App.vue
+++ b/ui/src/App.vue
@@ -42,6 +42,19 @@ onMounted(async () => {
             <button @click="authStore.logout" class="btn btn-text">登出</button>
           </div>
           <RouterLink v-else to="/login" class="btn btn-primary">登录</RouterLink>
+          
+          <!-- GitHub 链接 -->
+          <a 
+            href="https://github.com/kjqwer/pixiv-D" 
+            target="_blank" 
+            rel="noopener noreferrer" 
+            class="github-link"
+            title="查看项目源码"
+          >
+            <svg viewBox="0 0 24 24" fill="currentColor" class="github-icon">
+              <path d="M12 0c-6.626 0-12 5.373-12 12 0 5.302 3.438 9.8 8.207 11.387.599.111.793-.261.793-.577v-2.234c-3.338.726-4.033-1.416-4.033-1.416-.546-1.387-1.333-1.756-1.333-1.756-1.089-.745.083-.729.083-.729 1.205.084 1.839 1.237 1.839 1.237 1.07 1.834 2.807 1.304 3.492.997.107-.775.418-1.305.762-1.604-2.665-.305-5.467-1.334-5.467-5.931 0-1.311.469-2.381 1.236-3.221-.124-.303-.535-1.524.117-3.176 0 0 1.008-.322 3.301 1.23.957-.266 1.983-.399 3.003-.404 1.02.005 2.047.138 3.006.404 2.291-1.552 3.297-1.23 3.297-1.23.653 1.653.242 2.874.118 3.176.77.84 1.235 1.911 1.235 3.221 0 4.609-2.807 5.624-5.479 5.921.43.372.823 1.102.823 2.222v3.293c0 .319.192.694.801.576 4.765-1.589 8.199-6.086 8.199-11.386 0-6.627-5.373-12-12-12z"/>
+            </svg>
+          </a>
         </div>
       </div>
     </nav>
@@ -94,6 +107,7 @@ onMounted(async () => {
   display: flex;
   align-items: center;
   gap: 0.5rem;
+  
   text-decoration: none;
   color: #1f2937;
   font-weight: 700;
@@ -183,6 +197,30 @@ onMounted(async () => {
   background: #f3f4f6;
 }
 
+.github-link {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 2rem;
+  height: 2rem;
+  border-radius: 0.375rem;
+  color: #6b7280;
+  text-decoration: none;
+  transition: all 0.2s;
+  margin-left: 0.5rem;
+}
+
+.github-link:hover {
+  color: #374151;
+  background: #f3f4f6;
+  transform: translateY(-1px);
+}
+
+.github-icon {
+  width: 1.5rem;
+  height: 1.5rem;
+}
+
 .main-content {
   flex: 1;
 }
@@ -223,5 +261,14 @@ onMounted(async () => {
   .username {
     display: none;
   }
+  
+  .github-link {
+    margin-left: 0.25rem;
+  }
+  
+  .github-icon {
+    width: 1.25rem;
+    height: 1.25rem;
+  }
 }
 </style>
diff --git a/ui/src/stores/repository.ts b/ui/src/stores/repository.ts
index 2845ca8..a60a20b 100644
--- a/ui/src/stores/repository.ts
+++ b/ui/src/stores/repository.ts
@@ -20,6 +20,7 @@ export interface RepositoryStats {
     used: number
     free: number
     usagePercent: number
+    note?: string
   }
   lastScan: string
 }
@@ -126,8 +127,8 @@ export const useRepositoryStore = defineStore('repository', () => {
   }
 
   // 获取统计信息
-  const getStats = async (): Promise<RepositoryStats> => {
-    const result = await apiCall('/stats')
+  const getStats = async (forceRefresh = false): Promise<RepositoryStats> => {
+    const result = await apiCall(`/stats${forceRefresh ? '?forceRefresh=true' : ''}`)
     stats.value = result
     return result
   }
diff --git a/ui/src/views/repository/RepositoryStats.vue b/ui/src/views/repository/RepositoryStats.vue
index d3a8f1b..f41a77b 100644
--- a/ui/src/views/repository/RepositoryStats.vue
+++ b/ui/src/views/repository/RepositoryStats.vue
@@ -1,54 +1,143 @@
 <template>
-  <div class="stats-grid" v-if="stats">
-    <div class="stat-card">
-      <div class="stat-icon">📁</div>
-      <div class="stat-content">
-        <div class="stat-value">{{ stats.totalArtworks }}</div>
-        <div class="stat-label">总作品数</div>
+  <div class="stats-container">
+    <div class="stats-header">
+      <h3>仓库统计</h3>
+      <div class="stats-actions">
+        <button 
+          @click="refreshStats" 
+          :disabled="loading"
+          class="btn btn-secondary btn-sm"
+          title="刷新统计数据"
+        >
+          <svg v-if="loading" viewBox="0 0 24 24" fill="currentColor" class="refresh-icon spinning">
+            <path d="M17.65 6.35C16.2 4.9 14.21 4 12 4c-4.42 0-7.99 3.58-7.99 8s3.57 8 7.99 8c3.73 0 6.84-2.55 7.73-6h-2.08c-.82 2.33-3.04 4-5.65 4-3.31 0-6-2.69-6-6s2.69-6 6-6c1.66 0 3.14.69 4.22 1.78L13 11h7V4l-2.35 2.35z"/>
+          </svg>
+          <svg v-else viewBox="0 0 24 24" fill="currentColor" class="refresh-icon">
+            <path d="M17.65 6.35C16.2 4.9 14.21 4 12 4c-4.42 0-7.99 3.58-7.99 8s3.57 8 7.99 8c3.73 0 6.84-2.55 7.73-6h-2.08c-.82 2.33-3.04 4-5.65 4-3.31 0-6-2.69-6-6s2.69-6 6-6c1.66 0 3.14.69 4.22 1.78L13 11h7V4l-2.35 2.35z"/>
+          </svg>
+          刷新
+        </button>
       </div>
     </div>
-    <div class="stat-card">
-      <div class="stat-icon">👤</div>
-      <div class="stat-content">
-        <div class="stat-value">{{ stats.totalArtists }}</div>
-        <div class="stat-label">总作者数</div>
+    
+    <div class="stats-grid" v-if="stats">
+      <div class="stat-card">
+        <div class="stat-icon">📁</div>
+        <div class="stat-content">
+          <div class="stat-value">{{ stats.totalArtworks }}</div>
+          <div class="stat-label">总作品数</div>
+        </div>
       </div>
-    </div>
-    <div class="stat-card">
-      <div class="stat-icon">💾</div>
-      <div class="stat-content">
-        <div class="stat-value">{{ formatFileSize(stats.totalSize) }}</div>
-        <div class="stat-label">总存储大小</div>
+      <div class="stat-card">
+        <div class="stat-icon">👤</div>
+        <div class="stat-content">
+          <div class="stat-value">{{ stats.totalArtists }}</div>
+          <div class="stat-label">总作者数</div>
+        </div>
       </div>
-    </div>
-    <div class="stat-card">
-      <div class="stat-icon">💿</div>
-      <div class="stat-content">
-        <div class="stat-value">{{ stats.diskUsage.usagePercent }}%</div>
-        <div class="stat-label">磁盘使用率</div>
+      <div class="stat-card">
+        <div class="stat-icon">💾</div>
+        <div class="stat-content">
+          <div class="stat-value">{{ formatFileSize(stats.totalSize) }}</div>
+          <div class="stat-label">总存储大小</div>
+        </div>
+      </div>
+      <div class="stat-card">
+        <div class="stat-icon">💿</div>
+        <div class="stat-content">
+          <div class="stat-value">{{ stats.diskUsage.usagePercent }}%</div>
+          <div class="stat-label">磁盘使用率</div>
+          <div v-if="stats.diskUsage.note" class="stat-note">{{ stats.diskUsage.note }}</div>
+        </div>
       </div>
     </div>
   </div>
 </template>
 
 <script setup lang="ts">
+import { ref } from 'vue'
 import type { RepositoryStats } from '@/stores/repository.ts'
+import { useRepositoryStore } from '@/stores/repository'
 
 interface Props {
   stats: RepositoryStats | null
 }
 
-defineProps<Props>()
+const props = defineProps<Props>()
+const emit = defineEmits<{
+  refresh: []
+}>()
+
+const loading = ref(false)
+const repositoryStore = useRepositoryStore()
+
+const refreshStats = async () => {
+  loading.value = true
+  try {
+    await repositoryStore.getStats(true) // 强制刷新
+    emit('refresh')
+  } catch (error) {
+    console.error('刷新统计数据失败:', error)
+  } finally {
+    loading.value = false
+  }
+}
 
 import { formatFileSize } from '@/utils/formatters'
 </script>
 
 <style scoped>
+.stats-container {
+  margin-bottom: 2rem;
+}
+
+.stats-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-bottom: 1rem;
+}
+
+.stats-header h3 {
+  margin: 0;
+  color: #1f2937;
+  font-size: 1.25rem;
+  font-weight: 600;
+}
+
+.stats-actions {
+  display: flex;
+  gap: 0.5rem;
+}
+
+.btn-sm {
+  padding: 0.5rem 1rem;
+  font-size: 0.875rem;
+}
+
+.refresh-icon {
+  width: 1rem;
+  height: 1rem;
+  margin-right: 0.25rem;
+}
+
+.refresh-icon.spinning {
+  animation: spin 1s linear infinite;
+}
+
+@keyframes spin {
+  from {
+    transform: rotate(0deg);
+  }
+  to {
+    transform: rotate(360deg);
+  }
+}
+
 .stats-grid {
   display: grid;
   grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
   gap: 1rem;
-  margin-bottom: 2rem;
 }
 
 .stat-card {
@@ -65,6 +154,10 @@ import { formatFileSize } from '@/utils/formatters'
   font-size: 2rem;
 }
 
+.stat-content {
+  flex: 1;
+}
+
 .stat-value {
   font-size: 1.5rem;
   font-weight: 700;
@@ -75,4 +168,11 @@ import { formatFileSize } from '@/utils/formatters'
   color: #6b7280;
   font-size: 0.875rem;
 }
+
+.stat-note {
+  color: #9ca3af;
+  font-size: 0.75rem;
+  margin-top: 0.25rem;
+  font-style: italic;
+}
 </style> 
\ No newline at end of file