fix(DOM): change DOM selector from root to __rspress_root (#2419)

[jl917]

Summary

Related Issue

#2419

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).

[netlify]

✅ Deploy Preview for rspress-v2 ready!

Name	Link
🔨 Latest commit	71f1269
🔍 Latest deploy log	https://app.netlify.com/projects/rspress-v2/deploys/6894c92262177e00083fb857
😎 Deploy Preview	https://deploy-preview-2450--rspress-v2.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify project configuration.

[netlify]

✅ Deploy Preview for rspress ready!

Name	Link
🔨 Latest commit	71f1269
🔍 Latest deploy log	https://app.netlify.com/projects/rspress/deploys/6894c922d24861000827cd59
😎 Deploy Preview	https://deploy-preview-2450--rspress.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.
Lighthouse	1 paths audited Performance: 85 (🔴 down 9 from production) Accessibility: 97 (no change from production) Best Practices: 92 (🟢 up 9 from production) SEO: 100 (no change from production) PWA: - View the detailed breakdown and full score reports

---

To edit notification comments on pull requests, go to your Netlify project configuration.

[CLAassistant]

All committers have signed the CLA.

[SoonIter]

Sorry for the late reply, this is a breaking change, which affects users who use CSS #root selector to override Rspress default-theme styles.

I plan to combine it with the other theme style update release, otherwise, it may have some impact on users.

[jl917]

Sorry for the late reply, this is a breaking change, which affects users who use CSS #root selector to override Rspress default-theme styles.

I plan to combine it with the other theme style update release, otherwise, it may have some impact on users.

I understand. I expect this change could have a significant impact, so please feel free to roll it out gradually.