Combine css and @import font

Hello,
when we use css combine, @import rules are not move to the top of the file. Therefore, @import rules not working and font not appear on website.
Is it possible to move @import to the top of generated css file ?
Thanks

Reproduce CSS combining with a stylesheet that contains an @import rule, then trace the code that generates the combined CSS output. Verify that imported rules are placed at the top of the generated file and that the referenced font loads on the site.

Written by the indexing model from the issue text.