diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index feef89f..192c596 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -8,8 +8,11 @@ jobs:
     name: test
     runs-on: ubuntu-latest
     steps:
+      # 不用 actions/checkout: 它需从 github.com 拉取, 本网络不稳, 改为直接 clone Gitea
       - name: 检出代码
-        uses: actions/checkout@v4
+        run: |
+          REF="${{ github.event.pull_request.head.ref || github.ref_name }}"
+          git clone --depth 1 --branch "$REF" "${{ github.server_url }}/${{ github.repository }}.git" .
       - name: 安装 uv
         run: curl -LsSf https://astral.sh/uv/install.sh | sh
       - name: 安装依赖