需要在vite配置

plugins: [css: {preprocessorOptions: {less: {additionalData: '@import "./src/styles/variables.module.less"; @import "./src/views/Visualization/component/ViewportCom/px2viewport.less";',javascriptEnabled: true}}},
]

多个文件按上面格式引入

使用

<style lang="less" scoped>
.viewport {.px2font(20);background-color: red;
}
</style>