pptx预览不完整

文件：

[demo02.pptx](https://github.com/user-attachments/files/24447709/demo02.pptx)

### 预览：

<img width="1059" height="1332" alt="Image" src="https://github.com/user-attachments/assets/2e0c05d8-d213-4a2f-9680-c30f9a586f56" />

### 正确预览：

<img width="978" height="1048" alt="Image" src="https://github.com/user-attachments/assets/2ca22a98-f9d6-4646-80ce-8edea6911514" />