[Resolved] excerpt length specifically for mobile in a query loop

Hi there,
happy new year. 🙂

In a query loop, I’d like to set a different length for the view in mobile than the one for pc.
I need a shorter one in the mobile view. In other words, it’s ok to have the sentence truncated shorter in mobile than in pc, both truncated with a “read more” in the end.

How can I do that?

Thank you very much 🙂