diff --git a/.gitea/workflows/ci-cd.yml b/.gitea/workflows/ci-cd.yml
index df8f9a753..20e687565 100755
--- a/.gitea/workflows/ci-cd.yml
+++ b/.gitea/workflows/ci-cd.yml
@@ -83,6 +83,20 @@ jobs:
         fi
         
         echo "🔧 包含后端/公共变更，继续完整检查"
+    - name: Runner PG诊断
+      shell: sh
+      run: |
+        set +e
+        echo "=== PG诊断 ==="
+        echo "DATABASE_URL=$DATABASE_URL"
+        echo "--- PG进程 ---"
+        ps aux | grep postgres | grep -v grep
+        echo "--- 5432端口 ---"
+        ss -tlnp 2>/dev/null | grep 5432 || netstat -tlnp 2>/dev/null | grep 5432 || echo "port 5432: no listen"
+        echo "--- 连接测试 ---"
+        python3 -c "import os,sys;from sqlalchemy import create_engine,text;e=create_engine(os.environ['DATABASE_URL'],connect_args={'connect_timeout':5});c=e.connect();r=c.execute(text('SELECT version()'));print('PG:',r.fetchone()[0][:60]);r=c.execute(text("SELECT count(*) FROM information_schema.tables WHERE table_schema='public'"));print('tables:',r.fetchone()[0]);c.close();print('OK')" 2>&1
+        echo "=== 诊断结束 ==="
+
     - name: Detect frontend-only change
       shell: bash
       env: