The parse of markdown full-width colon is wrong. markdown文档的全角冒号解析错误

[davidw0374]

Bug Description

The parse of markdown full-width colon is wrong.
markdown文档的全角冒号解析错误。
google gemini的中文markdown输出经常包含全角冒号，只要遇到如下图的情况，全角冒号解析错误就是错误的。

Steps to Reproduce

Expected Behavior

Screenshots

Deployment Method

• Docker
• Vercel
• Server

Desktop OS

Windows 10

Desktop Browser

Chrome

Desktop Browser Version

NA

Smartphone Device

N/A

Smartphone OS

N/A

Smartphone Browser

N/A

Smartphone Browser Version

N/A

Additional Logs

No response

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