I want to know how to modify the CSS parameter of el input group_ append in the input component

[unclezhuang]

When I was writing the page for Vue3, I used the input component and successfully modified the color of the input box through CSS overlay

This is my current code：

As you can see, I can override the default CSS code by directly modifying the input in the CSS code section, but when I try to modify the. el input group_append, I cannot apply the changes
This is the environment on my webpage：

Modifying input will display in style

But el input group_append cannot be modified：

my code：

<template #append>eth

[Aseisman]

[Aseisman]

or
you can delete the "scoped" in the style. （it is basis....）and the next time you can show us the demo url
such as :
https://element-plus.run/#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

[unclezhuang]

Thank you for your reply. It has solved my problem very well