Problem with latin-ext on "service"s and "ribbon" sections

Hi there,

first of all thanks for your great work! It was a real pleasure to work with this theme. The final result is here: https://sylwiakowalskapsycholog.pl/

As you can see, I could not find solution to one major problem. Latin-ext is not working on services and ribbon sections. Polish fonts look different there. I modified style.css file and added &subset=latin,latin-ext but it had no effect on these two sections.

So finally, my question is:
In which file I can modify font family for “services” and “ribbon” sections? or is there another way I can I deal with this problem?

Thank in advance for your kind help
Peter