diff --git a/.dockerignore b/.dockerignore
index 3e1087f..4caeb06 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -16,7 +16,7 @@ npm-debug.log*
 pnpm-debug.log*
 
 docs
-IDE*
+# 勿写 IDE*：会误伤官网目录「IDE官网」，导致 / 探针 404
 xhs-agent-desktop
 **/*.md
 !src/**/*.md
diff --git a/nginx-k3s.conf b/nginx-k3s.conf
index 6ab37e8..9ef5d41 100644
--- a/nginx-k3s.conf
+++ b/nginx-k3s.conf
@@ -11,7 +11,8 @@ server {
     root /usr/share/nginx/html;
 
     location = / {
-        try_files /site/index.html =404;
+        # 官网优先；缺失时回退 SPA，避免 readiness 探针 404
+        try_files /site/index.html /index.html =404;
         add_header Cache-Control "no-cache, no-store, must-revalidate";
         add_header Pragma "no-cache";
         add_header Expires "0";