Good afternoon/evening, I am currently creating a website and decided to test its adaptability. Everything looks fine on the computer:

But when I transfer it to my phone (Redmi Note 9 PRO and Samsung Galaxy J1), the following results appear:

For some reason, the mobile browser cannot see the imported styles and JS. I have a question: if I put it on hosting, will it be the same thing? Why can't I see the style on my phone?

If you need meta tags and file paths, then they are:

I would appreciate an explanation as to why this is happening, thank you in advance