【Angular】关于angular引用第三方组件库无法改变其组件样式 :host ::ng-deep

<nz-input  formControlName="userName" [nzPlaceHolder]="'Username'" [nzSize]="'large'">
<ng-template #prefix>
<i class="anticon anticon-user" style="font-size:20px"></i>
</ng-template>
</nz-input>

.ant-input-affix-wrapper .ant-input:not(:first-child){
padding-left: 30px;
}

:host ::ng-deep .ant-input-affix-wrapper .ant-input:not(:first-child){
padding-left: 30px;
}