module.exports = {
  plugins: [
    require('postcss-import'),
    require('postcss-preset-env')({
      stage: 1,
      features: {
        'color-mod-function': {
          unresolved: 'warn'
        },
        'custom-properties': {
          preserve: false
        },
        'nesting-rules': true
      }
    }),
    // require('cssnano')({
    //   autoprefixer: false
    // })
  ]
}
@@ -315,19 +315,16 @@
  %7D),%0A   
- //
  require
@@ -345,13 +345,10 @@
     
-//
   
- 
 auto
@@ -370,11 +370,8 @@
 %0A   
- //
  %7D)%0A

Add css nano