小标题无法跳转

http://ddia.vonng.com/
![image](https://user-images.githubusercontent.com/8790163/154784261-28f108c2-1307-4c19-aa98-7ebc31fc768f.png)
点击左侧目录的某个章节，地址栏有变化，但是浏览器无法跳转。