diff --git a/.gitea/workflows/build_and_deploy_docs.yml b/.gitea/workflows/build_and_deploy_docs.yml
index 0975e85..93640ca 100644
--- a/.gitea/workflows/build_and_deploy_docs.yml
+++ b/.gitea/workflows/build_and_deploy_docs.yml
@@ -7,15 +7,13 @@ on:
 
 jobs:
   build-and-deploy:
-    # 依然使用标签，确保任务在正确的 Runner 上执行
     runs-on: docs-deployer
 
     steps:
       - name: Checkout repository
-        # 注意：这一步仍然需要网络来访问 github.com
         uses: actions/checkout@v2
 
-      - name: Install mdBook
+      - name: Cache mdBook
         id: cache-mdbook
         uses: actions/cache@v3
         with:
@@ -23,34 +21,29 @@ jobs:
           key: ${{ runner.os }}-mdbook-0.4.36
 
       - name: Install mdBook if not cached
+        # 只有在缓存未命中时才执行
         if: steps.cache-mdbook.outputs.cache-hit != 'true'
-        # 注意：这一步仍然需要网络来访问 github.com
         run: |
+          # --- ↓↓↓ 新增的修复步骤 ↓↓↓ ---
+          # 在解压前，确保目标目录存在。-p 参数会创建所有必要的父目录。
+          echo "Creating directory ~/.local/bin..."
+          mkdir -p ~/.local/bin
+          # --- ↑↑↑ 修复步骤结束 ↑↑↑ ---
+
+          echo "Downloading and extracting mdBook..."
           curl -sL https://github.com/rust-lang/mdBook/releases/download/v0.4.36/mdbook-v0.4.36-x86_64-unknown-linux-gnu.tar.gz | tar xvz -C ~/.local/bin
           chmod +x ~/.local/bin/mdbook
 
       - name: Build mdBook docs
+        # 使用缓存或刚刚安装的 mdbook 进行构建
         run: ~/.local/bin/mdbook build
 
-      # --- 部署步骤已更新为使用 cp ---
       - name: Deploy to Gitea Pages Directory
         run: |
-          # 目标目录，这是我们挂载到容器内的路径
           TARGET_DIR="/mnt/gitea-pages/dao-os/dao-os-docs"
-          # 构建产物的源目录
           SOURCE_DIR="./book"
-
           echo "🚀 Deploying to host via volume mount using 'cp'..."
-
-          # 确保顶层目标目录存在
           mkdir -p "$TARGET_DIR"
-
-          # 1. 清理旧文件：删除目标目录下的所有内容，确保干净的部署环境
-          # find ... -delete 比 rm -rf 更安全一些
           find "$TARGET_DIR" -mindepth 1 -delete
-
-          # 2. 复制新文件：将构建好的 book 目录下的所有内容，复制到目标目录
-          # cp -r a/. b/ 的语法可以确保 book 目录的内容被直接复制到 TARGET_DIR
           cp -r "$SOURCE_DIR"/. "$TARGET_DIR/"
-
           echo "✅ Deployment successful!"