Repository: yt-dlp
Issue: I can not download video from baike.baidu.com
Labels: site-request,triage

### DO NOT REMOVE OR SKIP THE ISSUE TEMPLATE

- [X] I understand that I will be **blocked** if I *intentionally* remove or skip any mandatory\* field

### Checklist

- [X] I'm reporting a new site support request
- [X] I've verified that I'm running yt-dlp version **2023.06.22** ([update instructions](https://github.com/yt-dlp/yt-dlp#update)) or later (specify commit)
- [X] I've checked that all provided URLs are playable in a browser with the same IP and same login details
- [X] I've checked that none of provided URLs [violate any copyrights](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#is-the-website-primarily-used-for-piracy) or contain any [DRM](https://en.wikipedia.org/wiki/Digital_rights_management) to the best of my knowledge
- [X] I've searched [known issues](https://github.com/yt-dlp/yt-dlp/issues/3766) and the [bugtracker](https://github.com/yt-dlp/yt-dlp/issues?q=) for similar issues **including closed ones**. DO NOT post duplicates
- [X] I've read the [guidelines for opening an issue](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#opening-an-issue)
- [ ] I've read about [sharing account credentials](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#are-you-willing-to-share-account-details-if-needed) and am willing to share it if required

### Region

China

### Example URLs

https://baike.baidu.com/item/%E7%A7%92%E6%87%82%E4%BA%94%E5%8D%83%E5%B9%B4

### Provide a description that is worded well enough to be understood

I tried: yt-dlp https://baike.baidu.com/item/%E7%A7%92%E6%87%82%E4%BA%94%E5%8D%83%E5%B9%B4
get the error information: 
ERROR: Unsupported URL: https://baike.baidu.com/item/%E7%A7%92%E6%87%82%E4%BA%94%E5%8D%83%E5%B9%B4


### Provide verbose output that clearly demonstrates the problem

- [X] Run **your** yt-dlp command with **-vU** flag added (`yt-dlp -vU <your command line>`)
- [ ] If using API, add `'verbose': True` to `YoutubeDL` params instead
- [X] Copy the WHOLE output (starting with `[debug] Command-line config`) and insert it below

### Complete Verbose Output

```shell
[debug] Command-line config: ['-vU', 'https://baike.baidu.com/item/%E7%A7%92%E6%87%82%E4%BA%94%E5%8D%83%E5%B9%B4']
[debug] Encodings: locale UTF-8, fs utf-8, pref UTF-8, out utf-8, error utf-8, screen utf-8
[debug] yt-dlp version stable@2023.06.22 [812cdfa06] (pip)
[debug] Python 3.8.7 (CPython x86_64 64bit) - Linux-3.10.0-1160.90.1.el7.x86_64-x86_64-with-glibc2.17 (OpenSSL 1.0.2k-fips  26 Jan 2017, glibc 2.17)
[debug] exe versions: none
[debug] Optional libraries: Cryptodome-3.18.0, brotli-1.0.9, certifi-2023.05.07, mutagen-1.46.0, sqlite3-2.6.0, websockets-11.0.3
[debug] Proxy map: {}
[debug] Loaded 1851 extractors
[debug] Fetching release info: https://api.github.com/repos/yt-dlp/yt-dlp/releases/latest
Available version: stable@2023.06.22, Current version: stable@2023.06.22
yt-dlp is up to date (stable@2023.06.22)
[generic] Extracting URL: https://baike.baidu.com/item/%E7%A7%92%E6%87%82%E4%BA%94%E5%8D%83%E5%B9%B4
[generic] 秒懂五千年: Downloading webpage
WARNING: [generic] Falling back on generic information extractor
[generic] 秒懂五千年: Extracting information
[debug] Looking for embeds
ERROR: Unsupported URL: https://baike.baidu.com/item/%E7%A7%92%E6%87%82%E4%BA%94%E5%8D%83%E5%B9%B4
Traceback (most recent call last):
  File "/usr/local/python3/lib/python3.8/site-packages/yt_dlp/YoutubeDL.py", line 1555, in wrapper
    return func(self, *args, **kwargs)
  File "/usr/local/python3/lib/python3.8/site-packages/yt_dlp/YoutubeDL.py", line 1631, in __extract_info
    ie_result = ie.extract(url)
  File "/usr/local/python3/lib/python3.8/site-packages/yt_dlp/extractor/common.py", line 708, in extract
    ie_result = self._real_extract(url)
  File "/usr/local/python3/lib/python3.8/site-packages/yt_dlp/extractor/generic.py", line 2568, in _real_extract
    raise UnsupportedError(url)
yt_dlp.utils.UnsupportedError: Unsupported URL: https://baike.baidu.com/item/%E7%A7%92%E6%87%82%E4%BA%94%E5%8D%83%E5%B9%B4
```