Fonts for my html report template in appsheet

[datijoaquin]

Hello everyone!
I'm trying to add fonts from google font to an html template that I then transform into a pdf, and when adding the @import between my style tags I get this error:
"Run task "Task for Enviomail"
Error 1 : Task 'Enviomail' Body template. Template could not be loaded due to exception: '=' is an unexpected token. The expected token is ';'. Line 9, position 134.
Error 2 : The document body is empty"

any ideas? I leave the @import tag that I am using:
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:ital,wght@0,200;0,300;0,400;0,500;0,600;0,700...');