How to add a folder for vue 2.0 projects built with vue-cli to fit the files on the mobile side

the picture above is a project I am currently working on, but it is only suitable for the computer side. I want to create another one for the mobile end. How can I add a folder to this existing project? And when computers and mobile phones enter the same URL, call different components according to different routes? Thank you.

Apr.14,2021
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