Blazor web app CSS隔离加载 问题

visual studio 2022 社区版 : 17.12.3

我新建了一个 blazor web app .net 8 程序，我将 Components 文件夹 全部删除, 主程序 只保留 Program.cs 和 appsettings.json 文件, 随后我创建 RazorClassLibrary1 类库,

Program.cs 代码如下:

using RazorClassLibrary1;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.

builder.Services.AddRazorComponents()

.AddInteractiveServerComponents();

var app = builder.Build();

// Configure the HTTP request pipeline.

if (!app.Environment.IsDevelopment())

{

app.UseExceptionHandler("/Error", createScopeForErrors: true);

// The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.

app.UseHsts();

}

app.UseHttpsRedirection();

app.UseStaticFiles();

app.UseAntiforgery();

app.MapRazorComponents<App>()

.AddInteractiveServerRenderMode();

app.Run();

可是程序启动后，RazorClassLibrary1 类库里面的 CSS 隔离失效。哪位朋友能教一下