@media doesn't work on certain pages. What to do?

Question

css

It works on a certain page. the rest are not. A photo. Everything is ok

here. But here it’s not very good

. What guesses? If there is anything else you need to know, please tell me.
PS
A-A-A, I have a deadline, they will kill me

Answer 1

Is there such a thing in the head of an incorrectly displayed page?

<meta name="viewport" content="width=device-width, initial-scale=1">