Mobile Compatiblity on max-width

[arooe]

What version of starlight are you using?

0.21.2

What version of astro are you using?

4.3.5

What package manager are you using?

pnpm

What operating system are you using?

Mac

What browser are you using?

Brave

Describe the Bug

Hello sir, I found the title and the content is not compatible on the phone. Maybe there is something wrong with the sl-container 's max-width. And I want to handle it. May I open a PR to fix it?

Link to Minimal Reproducible Example

https://super.town/%E4%BA%A7%E5%93%81/%E5%8D%81%E7%82%B9%E5%8D%8A%E8%81%8A%E4%BA%A7%E5%93%81/b%E7%AB%AF%E4%BA%A7%E7%A0%94%E5%8D%8F%E4%BD%9C%E5%B7%A5%E5%85%B7%E4%BD%93%E9%AA%8C%E5%8D%87%E7%BA%A7/

Participation

• I am willing to submit a pull request for this issue.