AtRule is not a constructor

[harlan1012]

Describe the bug

postcss版本：8.4.39 安装postcss-px-conversion后运行，报错”xxxAtRule is not a constructor“

Reproduction

plugins: [ autoprefixer(), postcssPxConversion({ unitType: 'px', unitPrecision: 5, viewportWidth: 375, viewportUnit: 'vw', fontViewportUnit: 'vw', allowedProperties: [''], excludedProperties: [], selectorBlacklist: [], minPixelValue: 1, allowMediaQuery: true, replaceRules: true, excludeFiles: [/pad-css.(scss|css|less)/, /uno.(scss|css|less)/], includeFiles: [], enableLandscape: true, landscapeUnit: 'vh', landscapeViewportWidth: 768, enablePerFileConfig: true, viewportWidthComment: 'viewport-width', }), postcssPxConversion({ unitType: 'px', unitPrecision: 5, viewportWidth: 375, viewportUnit: 'vw', fontViewportUnit: 'vw', allowedProperties: [''], excludedProperties: [], selectorBlacklist: [], minPixelValue: 1, allowMediaQuery: true, replaceRules: true, excludeFiles: [], includeFiles: [/pad-css.(scss|css|less)/], enableLandscape: true, landscapeUnit: 'vh', landscapeViewportWidth: 768, enablePerFileConfig: true, viewportWidthComment: 'viewport-width', }),]

System Info

System:
    OS: macOS 14.1
    CPU: (11) arm64 Apple M3 Pro
    Memory: 29.98 MB / 18.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 18.20.2 - ~/.nvm/versions/node/v18.20.2/bin/node
    Yarn: 1.22.21 - /opt/homebrew/bin/yarn
    npm: 10.5.0 - ~/.nvm/versions/node/v18.20.2/bin/npm
    pnpm: 8.12.0 - ~/Library/pnpm/pnpm
  Browsers:
    Chrome: 126.0.6478.127
    Safari: 17.1
    Safari Technology Preview: 18.0

Validations

• [X] Follow our Code of Conduct
• [X] Read the Contributing Guide.
• [X] Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• [X] Check that this is a concrete bug. For Q&A, please open a GitHub Discussion instead.
• [X] The provided reproduction is a minimal reproducible of the bug.

[kirklin]

未复现问题，可以给一个最小实现吗