Mardown to pdf with fonts @import


Hello everyone,
when I want to export my markdown file in pdf, I use markdown-pdf or markdown-themeable-pdf.

In both cases, I can customize the rendering via css.

My problem is related to the use of @import or font-face in css. In both cases, the fonts are not personalized, whether they are local or on “google fonts” are not used.

I end up with default system fonts. An idea of ​​the configuration element to activate to enter the use of possible “external fonts”?