TOC doesn't move when scrolling.

[Sitaye]

Describe the bug I updated my theme submodule through git submodule update --remote --merge yesterday, and I found that after redeployment, the TOC in articles no longer moved and shifted up when I scrolled down.

To Reproduce Steps to reproduce the behavior:

1. Update Hugo: download the latest binary file from gohugoio/hugo
2. Create a new Hugo repository: hugo new site test_bug
3. Enter the repo and pull the theme: git submodule add -b main https://github.com/nunocoracao/blowfish.git themes/blowfish
4. Apply the theme as described in the Blowfish documentation
5. Create a test markdown file: hugo new posts/test.md
6. Write some content and create multilevel headings
7. Scroll and see the error

Expected behavior I expected the TOC to remain fixed as before.

Screenshots [My Site] Before Update: [My Site] After Update: [Test] Clearly Seen:

Desktop (please complete the following information):

• OS: Windows 11 23H2
• Browser: Chrome
• Version: 126.0.6478.127

Hugo & Blowfish versions

• Hugo: v0.129.0
• Blowfish: v2.74.0