diff --git a/apps/web/src/pages/generate/hooks/useStep4Title/index.ts b/apps/web/src/pages/generate/hooks/useStep4Title/index.ts
index eb8114623..0343e2299 100644
--- a/apps/web/src/pages/generate/hooks/useStep4Title/index.ts
+++ b/apps/web/src/pages/generate/hooks/useStep4Title/index.ts
@@ -24,8 +24,12 @@ export function useStep4Title({ titleSettings, onTitleSettingsChange }: UseStep4
   // AI 标题生成
   const aiGenerator = useAiTitleGenerator({ titleSettings, onTitleSettingsChange })
 
-  // 样式更新
-  const styleUpdaters = useTitleStyleUpdaters({ titleSettings, onTitleSettingsChange })
+  // 样式更新（注入 autoGenerateTitle 让 toggleAiAutoSelect 能调用）
+  const styleUpdaters = useTitleStyleUpdaters({
+    titleSettings,
+    onTitleSettingsChange,
+    autoGenerateTitle: aiGenerator.autoGenerateTitle,
+  })
 
   return {
     // 数据
@@ -43,6 +47,7 @@ export function useStep4Title({ titleSettings, onTitleSettingsChange }: UseStep4
     handleGenerateAiTitles: aiGenerator.handleGenerateAiTitles,
     handleSelectAiTitle: aiGenerator.handleSelectAiTitle,
     handleRefreshAiTitles: aiGenerator.handleRefreshAiTitles,
+    autoGenerateTitle: aiGenerator.autoGenerateTitle,
     // 标题设置操作
     updateTitle: styleUpdaters.updateTitle,
     toggleAiAutoSelect: styleUpdaters.toggleAiAutoSelect,