Scoped style with > selector causes error

[lucascool12]

Describe the bug

Creating a slide with a style element using the > selector (e.g. p > a) causes an error.

Minimal reproduction

Steps to reproduce the behavior:

1. Go to https://sli.dev/new
2. Add the following to a slide:

<style>
p > a {}
</style>

3. See the error

The error

[plugin:vite:vue] Tags with side effect (<script> and <style>) are ignored in client component templates.

Environment

• Slidev version: 0.49.29
• Browser: Firefox 118.0.1
• OS: Linux

[KermanX]

Looks like an upstream bug... The transformation logic in Slidev is correct in test. However, I can't find a related issue/commit in https://github.com/unplugin/unplugin-vue-markdown or https://github.com/mdit-vue/mdit-vue