Bug Description

When reading a azw3 file, some headings in the outline are not linked to expected postion.

The following are two cases for reproducing the problem.

For example of File A, clicking the outline item "第7章　将BERT模型应用于其他语言" will navigate to the beginning of the book rather than 第7章

File A.zip

For example of File B, clicking the outline item "第三部分　革命之前大西洋的价值和历史" -> "第十四章　18世纪的论战：美德、欲望和商业" will navigate to the begining of 第三部分 rather than 第十四章.

File B.zip

I have tested both 2 files on another ebook reader App Alexandria and I am sure the problem doesn't occur on Alexandria.

Expected behavior

Navigate to proper position.

Technical inputs

Operating System: Windows 11

Readest Version: 0.9.60 (Edge 137.0.0.0)