cannot change link color in post content

now all plugins is all disable https://prnt.sc/Ig4SX85O4nrd

And it's working?
[screenshot removed]

yes, I think https://prnt.sc/94DlLNg8fyel this affect the link color

Hmm it shouldn't be.

My screenshot here was taken when all plugins including GP Premium were disabled:
[screenshot removed]

Actually, having a closer look, I don't believe that Content Template for a single post is needed.

Can you remove that?

https://prnt.sc/BzkAz1mRGJey make this change to draft, you will find the link color is ok

https://www.screencast.com/t/jQi8M0GV36 yes, when disable GP Premium, the link color is ok, but the problem is content template

no, I need current design, content template is the only way I found to realize my design

content in content template is not content? why content link color setting not working here? I'm confused.

Looks like that Content Template is added by you as it's not in the original install:
https://www.screencast.com/t/K7yCJRVnPc

If you need to use a Content template there then you would need to set the Link color for the container:
[screenshot removed]

The content template is supposed to overwrite the customizer setting as that's the whole purpose.

ok, thank you, I will try this way, and if you can delete the screenshot of my website? thank you

Screenshots removed :)