postcss.config.js

if (process.env.VITE_ROOT_DIR) {
  // vite
  const { uniPostcssPlugin, parseRpx2UnitOnce } = require('@dcloudio/uni-cli-shared');
  module.exports = {
    plugins: [
      uniPostcssPlugin(
        Object.assign(
          {
            page: process.env.UNI_PLATFORM === 'h5' ? 'uni-page-body' : 'body',
          },
          parseRpx2UnitOnce(process.env.UNI_INPUT_DIR)
        )
      ),
      require('autoprefixer')(),
    ],
  };
} else {
  const path = require('path');
  module.exports = {
    parser: 'postcss-comment',
    plugins: {
      'postcss-import': {
        resolve(id, basedir, importOptions) {
          if (id.startsWith('~@/')) {
            return path.resolve(process.env.UNI_INPUT_DIR, id.substr(3));
          } else if (id.startsWith('@/')) {
            return path.resolve(process.env.UNI_INPUT_DIR, id.substr(2));
          } else if (id.startsWith('/') && !id.startsWith('//')) {
            return path.resolve(process.env.UNI_INPUT_DIR, id.substr(1));
          }
          return id;
        },
      },
      autoprefixer: {
        overrideBrowserslist: ['> 1%', 'last 2 versions', 'not dead'],
        remove: process.env.UNI_PLATFORM !== 'h5',
        ignoreUnknownVersions: true,
      },
      '@dcloudio/vue-cli-plugin-uni/packages/postcss': {},
    },
  };
}