Notification missing style

[weeksun23]

• I have searched the issues of this repository and believe that this is not a duplicate.

Version

3.0.0-alpha.0

Environment

vue@3.2

Reproduction link

https://next.antdv.com/components/notification-cn

Steps to reproduce

1. Open https://next.antdv.com/components/notification-cn
2. Find the 'Notification with icon' example, and click the 'Sucess Info Error Warn' buttons
3. Find the 'Custom close button' example, and click the 'Open the notification box' button
4. Then you will find a no style notification box

What is expected?

Should have style like 2.X

What is actually happening?

Missing style

[github-actions]

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