diff --git a/src-tauri/locales/en.json b/src-tauri/locales/en.json
index 6427bc3..a206b5e 100644
--- a/src-tauri/locales/en.json
+++ b/src-tauri/locales/en.json
@@ -156,6 +156,9 @@
     "the_path_is_illegal": "The path is illegal",
     "same_source_and_target": "Source and target are the same",
     "bisync": "Bidirectional Sync",
+  "resync": "Resync",
+  "force_resync": "Force Resync",
+  "force_resync_tip": "Use --resync flag to force a full resync. Useful for first-time setup or when sync state is corrupted.",
     "add_storage": "Add Storage",
     "add_mount": "Add Mount",
     "add_task": "Add Task",
diff --git a/src-tauri/locales/zh-cn.json b/src-tauri/locales/zh-cn.json
index 723bdae..d75b425 100644
--- a/src-tauri/locales/zh-cn.json
+++ b/src-tauri/locales/zh-cn.json
@@ -156,6 +156,9 @@
     "the_path_is_illegal": "路径不合法",
     "same_source_and_target": "源和目标相同",
     "bisync": "双向同步",
+  "resync": "重新同步",
+  "force_resync": "强制重新同步",
+  "force_resync_tip": "使用 --resync 标志强制完全重新同步。首次设置或同步状态损坏时使用。",
     "add_storage": "添加存储",
     "add_mount": "添加挂载",
     "add_task": "添加任务",
diff --git a/src-tauri/locales/zh-hant.json b/src-tauri/locales/zh-hant.json
index c9b2b9b..2571b19 100644
--- a/src-tauri/locales/zh-hant.json
+++ b/src-tauri/locales/zh-hant.json
@@ -128,6 +128,9 @@
     "the_path_is_illegal": "路徑不合法",
     "same_source_and_target": "源和目標相同",
     "bisync": "雙向同步",
+  "resync": "重新同步",
+  "force_resync": "強制重新同步",
+  "force_resync_tip": "使用 --resync 標誌強制完全重新同步。首次設定或同步狀態損壞時使用。",
     "add_storage": "添加存儲",
     "add_mount": "添加掛載",
     "add_task": "添加任務",
diff --git a/src/page/mount/add.tsx b/src/page/mount/add.tsx
index f8b23e7..ff89729 100644
--- a/src/page/mount/add.tsx
+++ b/src/page/mount/add.tsx
@@ -218,13 +218,18 @@ export default function AddMount_page() {
     if (mode === 'off' || mode === 'minimal') {
       next.CacheMaxSize = 1073741824 // 1GB
       next.WriteBack = 1000000000 // 1s
+      next.ReadAhead = 4194304 // 4MB
+      next.DirCacheTime = 30000000000 // 30s
     } else if (mode === 'writes') {
       next.CacheMaxSize = 10737418240 // 10GB
       next.WriteBack = 5000000000 // 5s
+      next.ReadAhead = 33554432 // 32MB
+      next.DirCacheTime = 120000000000 // 2min
     } else {
       next.CacheMaxSize = 21474836480 // 20GB
       next.WriteBack = 15000000000 // 15s
-      next.ReadAhead = 8388608 // 8MB
+      next.ReadAhead = 134217728 // 128MB
+      next.DirCacheTime = 300000000000 // 5min
     }
     setParameters({ ...parameters, vfsOpt: next })
     vfsOptFormHook?.setFieldsValue(next)
@@ -339,6 +344,14 @@ export default function AddMount_page() {
                   <Select.Option value="fuse-t">fuse-t</Select.Option>
                   <Select.Option value="macfuse">macfuse</Select.Option>
                 </Select>
+                {/* FUSE-T 安全提示 */}
+                {parameters.mountOpt.MountType === 'fuse-t' && (
+                  <Alert
+                    type="warning"
+                    content={t('mac_fuse_t_security_tip')}
+                    style={{ marginTop: '0.5rem' }}
+                  />
+                )}
               </FormItem>
             )}
             <FormItem label={t('cache_strategy')}>
@@ -400,6 +413,14 @@ export default function AddMount_page() {
               <Select.Option value="fuse-t">fuse-t</Select.Option>
               <Select.Option value="macfuse">macfuse</Select.Option>
             </Select>
+            {/* FUSE-T 安全提示 */}
+            {parameters.mountOpt.MountType === 'fuse-t' && (
+              <Alert
+                type="warning"
+                content={t('mac_fuse_t_security_tip')}
+                style={{ marginTop: '0.5rem' }}
+              />
+            )}
           </FormItem>
         )}
       </div>
diff --git a/src/page/storage/add.tsx b/src/page/storage/add.tsx
index b8ea628..92b67ef 100644
--- a/src/page/storage/add.tsx
+++ b/src/page/storage/add.tsx
@@ -194,9 +194,27 @@ function AddStorage_page() {
 
             {/* 存储介绍 */}
             {storageTypeName ? (
-              <FormItem label={t('storage_introduce')}>
-                <Typography.Text>{t(storageInfo.description)}</Typography.Text>
-              </FormItem>
+              <>
+                <FormItem label={t('storage_introduce')}>
+                  <Typography.Text>{t(storageInfo.description)}</Typography.Text>
+                </FormItem>
+                {/* WebDAV 路径提示 */}
+                {storageInfo.type.toLowerCase().includes('webdav') && (
+                  <Alert
+                    type="info"
+                    content={t('webdav_path_tip')}
+                    style={{ marginTop: '0.5rem' }}
+                  />
+                )}
+                {/* 百度网盘 Token 提示 */}
+                {storageInfo.type.toLowerCase().includes('baidunetdisk') && (
+                  <Alert
+                    type="info"
+                    content={t('baidu_token_tip')}
+                    style={{ marginTop: '0.5rem' }}
+                  />
+                )}
+              </>
             ) : (
               searchStr && searchStr.toLowerCase().includes('nfs') && (
                 <Alert
diff --git a/src/page/storage/explorer.tsx b/src/page/storage/explorer.tsx
index 0f94929..db7390c 100644
--- a/src/page/storage/explorer.tsx
+++ b/src/page/storage/explorer.tsx
@@ -242,9 +242,12 @@ function ExplorerItem() {
             fileInfo()
           } catch (error) {
             const errorMsg = error instanceof Error ? error.message : String(error)
-            // S3等对象存储不支持原生重命名，需要通过复制+删除实现
+            // S3等对象存储不支持原生重命名
             if (errorMsg.includes('not supported') || errorMsg.includes('rename')) {
               Message.error(t('rename_not_supported'))
+            } else if (isDir && (errorMsg.includes('DirMove') || errorMsg.includes('500') || errorMsg.includes('Internal Server Error'))) {
+              // S3目录重命名失败的特殊处理
+              Message.error(t('s3_rename_dir_not_supported'))
             } else {
               Message.error(t('rename_failed') + ': ' + errorMsg)
             }
diff --git a/src/services/storage/StorageManager.ts b/src/services/storage/StorageManager.ts
index bcd57bc..1efc552 100644
--- a/src/services/storage/StorageManager.ts
+++ b/src/services/storage/StorageManager.ts
@@ -173,7 +173,8 @@ async function getStorageSpace(name: string): Promise<StorageSpace> {
 
   // 检测token相关错误（如百度网盘refresh token过期）
   const errorStr = String(lastError)
-  if (errorStr.includes('refresh_token') || errorStr.includes('token') || errorStr.includes('auth')) {
+  if (errorStr.includes('refresh_token') || errorStr.includes('token') || errorStr.includes('auth') || 
+      errorStr.includes('empty token') || errorStr.includes('wrong refresh token')) {
     logger.warn(`Storage ${name} may have token issues: ${errorStr}`, 'StorageManager')
     return { total: -3, free: -3, used: -3 } // 特殊标记：token错误
   }