REM not working on all sites

Hi,

I apologize for the confusion. Here’s the corrected version in English:

I would like to ask for help if anyone has encountered a similar problem. I am trying to convert the dimension values on my website to REM instead of px in order to display properly on high-resolution displays.

It worked fine for a while, but then some pages do not reflect the change. Strangely, the header (which is a component) works on the main page but not on the contact page.

Has anyone encountered a similar problem? Thank you.
K.

Here is my read only: LINK