I want to use sass, but the CSS file is not automatically generated.

I'm working on a website with WordPress.

If you create a site in the VSC, create a file for sass, and
The css file is automatically created, but

FileZilla does not automatically create css files even if you create sass.

Up until now, you have created a sass file on the VSC and
So I copied the contents of the automatically generated CSS file to the CSS file I created in FileZilla, but then I cannot create the CSS while looking at the screen created in PHP.

Once, I made it possible to do PHP in VSC, and then I installed MAMP and WordPress so that I could use VSC to do WordPress.
This time, even if I made a sass, the css file was not automatically created.
Even if you google the html file, you will only see a list of codes.

How can I code with SCSS while looking at the screen created with PHP?

I'm in a hurry, so I'll ask you questions on other sites.