如何使用appsettings.json的日志级别参数进行Serilog？

"Logging": {
  "LogLevel": {
    "Default": "Information",
    "Microsoft": "Warning",
    "System": "Error"
  }
}

public class Startup
{
  public Startup(IConfiguration configuration)
  {
    Configuration = configuration;
  }

  public IConfiguration Configuration { get; }

  public void ConfigureServices(IServiceCollection services)
  {
    // 其他服务配置...

    // 添加Serilog
    services.AddLogging(loggingBuilder =>
    {
      loggingBuilder.AddSerilog(dispose: true);
    });
  }

  public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
  {
    // 其他中间件配置...

    // 使用Serilog
    app.UseSerilogRequestLogging();

    // 其他配置...
  }
}

public class Program
{
  public static void Main(string[] args)
  {
    // 读取appsettings.json文件中的配置
    var configuration = new ConfigurationBuilder()
      .SetBasePath(Directory.GetCurrentDirectory())
      .AddJsonFile("appsettings.json")
      .Build();

    // 初始化Serilog
    Log.Logger = new LoggerConfiguration()
      .ReadFrom.Configuration(configuration)
      .CreateLogger();

    try
    {
      Log.Information("Starting application...");
      CreateHostBuilder(args).Build().Run();
      Log.Information("Application stopped gracefully.");
    }
    catch (Exception ex)
    {
      Log.Fatal(ex, "Application terminated unexpectedly.");
    }
    finally
    {
      Log.CloseAndFlush();
    }
  }

  public static IHostBuilder CreateHostBuilder(string[] args) =>
    Host.CreateDefaultBuilder(args)
      .ConfigureWebHostDefaults(webBuilder =>
      {
        webBuilder.UseStartup<Startup>();
      })
      .UseSerilog(); // 使用Serilog
}