diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index b98ecf1..dfc9ee1 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -1,4 +1,7 @@
-# Gitea Actions：需开启 Actions 并注册 act_runner；runs-on 标签需与 Runner 一致
+# Gitea Actions：需开启 Actions 并注册 act_runner。
+# act_runner 下 Job 容器内必须有 node（checkout/setup-node 的脚本依赖），请设置例如：
+#   GITEA_RUNNER_LABELS=ubuntu-latest:docker://node:22-bookworm
+# 并与本文件 runs-on、Setup Node 版本一致；需挂载 /var/run/docker.sock。
 
 name: CI
 
@@ -14,7 +17,7 @@ concurrency:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-latest:docker://node:22-bookworm
 
     steps:
       - name: Checkout