global stylus imported in Vue while using TailwindCSS, node.js runtime cost 3000MB RAM

[ShookLyngs]

Trying to use Mand-Mobile, an UI tool-kit, along with the powerful TailwindCSS.

I imported a stylus file to global, in vue.config.js, just to cover the default theme of the UI tool-kit.
This is the documentation i followed:
https://didi.github.io/mand-mobile/#/zh-CN/docs/theme

And i imported TailwindCSS like this, in the main.js file.
import 'tailwindcss/tailwind.css';

At first i didn't notice anything wrong, until i start building the project to production.
The building process was so slow, it takes 5 minutes(or more) to finish the task, every time.
And then i realized every time i run the project, its not only charging lots of times, it also takes a lot of RAM.
The node.js runtime program need 3000MB to run the project.

So is there a way for TailwindCSS, to ignore some of the style files that has nothing to do with TailwindCSS?
Cause the file that i imported in vue.config.js, to every .vue files, it was meant to just cover the default theme of the UI tool-kit.

I used @apply in other stylus files, and i had refactored them to TailwindCSS plugins.
But as long as I imported the theme file to global, the high RAM charging just wouln't stop.

Please help out, Thanks!