diff --git a/Program.cs b/Program.cs
index 9610bf1..da95023 100644
--- a/Program.cs
+++ b/Program.cs
@@ -54,6 +54,8 @@ builder.Services.AddHttpClient("gitea", client =>
     // 仅对 5xx / 429 / 网络错误重试；4xx 由 ShouldHandle 默认配置自动跳过
     options.TotalRequestTimeout.Timeout = TimeSpan.FromSeconds(90);
     options.AttemptTimeout.Timeout = TimeSpan.FromSeconds(30);
+    // Polly 校验：SamplingDuration ≥ 2× AttemptTimeout，默认 30s 不达标
+    options.CircuitBreaker.SamplingDuration = TimeSpan.FromSeconds(60);
 });
 
 // ─── 业务服务 ──────────────────────────────────────────────