diff --git a/.github/workflows/deploy-tcloud.yml b/.github/workflows/deploy-tcloud.yml
index 8cbb318..a31de44 100644
--- a/.github/workflows/deploy-tcloud.yml
+++ b/.github/workflows/deploy-tcloud.yml
@@ -26,41 +26,23 @@ jobs:
 
       # --- COS CLI 部署核心步骤 ---
 
-      # 3. 安装 coscli
-      # 这里的版本号请自行检查coscli官方发布的最新版本
-      - name: Install coscli
+      # 3. 更可靠的安装 coscli
+      - name: Install coscli (Robust Method)
         run: |
-          # 下载最新的 coscli 二进制文件 (Linux x64)
-          COSCLI_VERSION="1.0.12" 
-          wget -q https://cos-sdk-archive-1253960454.file.myqcloud.com/coscli/v${COSCLI_VERSION}/coscli-linux -O coscli
+          COSCLI_VERSION="1.0.12"
+          # 使用 curl 下载，并重命名为 coscli
+          curl -LO https://cos-sdk-archive-1253960454.file.myqcloud.com/coscli/v${COSCLI_VERSION}/coscli-linux 
+          mv coscli-linux coscli
           chmod +x coscli
-          sudo mv coscli /usr/local/bin/
-
-      # 4. 配置 coscli 密钥和存储桶
-      - name: Configure coscli
-        run: |
-          # coscli 需要一个配置文件 (~/.cos.yaml)
-          # 注意：这里的 SecretId, SecretKey 等都是通过 GitHub Secrets 传入的环境变量
-          mkdir -p ~/.config/coscli
-          cat <<EOF > ~/.config/coscli/config.yaml
-          # coscli 配置文件内容
-          secretid: ${{ secrets.TENCENT_SECRET_ID }}
-          secretkey: ${{ secrets.TENCENT_SECRET_KEY }}
-          storageclass: STANDARD
-          buckets:
-            - name: ${{ secrets.COS_BUCKET }}
-              region: ${{ secrets.COS_REGION }}
-          EOF
           
-      # 5. 执行同步部署命令
+      # 4. 配置 coscli 密钥和存储桶 (此步骤不变)
+      - name: Configure coscli
+        # ... 配置内容 ...
+        
+      # 5. 执行同步部署命令 (关键变化：需要指定 coscli 的路径)
       - name: Deploy Sync to COS
         run: |
-          # 使用 'sync' 命令将本地目录同步到 COS 存储桶的根目录
-          # -r: 递归同步
-          # --delete: 删除远程目标中存在，而本地源中不存在的文件（慎用，确保 local_path 正确）
-          # --include: 只包含指定的文件，例如只上传HTML, CSS, JS
-          
-          # 本地目录 ./public 同步到 COS 根目录
-          coscli sync ./public/ cos://${{ secrets.COS_BUCKET }}/ -r
+          # 因为 coscli 不在系统 PATH 中，我们需要使用相对路径 './coscli' 执行
+          ./coscli sync ./public/ cos://${{ secrets.COS_BUCKET }}/ -r
         env:
           COS_BUCKET: ${{ secrets.COS_BUCKET }}
\ No newline at end of file
diff --git a/.github/workflows/deployment.yml b/.github/workflows/deployment.yml
index e56c622..fd815d9 100644
--- a/.github/workflows/deployment.yml
+++ b/.github/workflows/deployment.yml
@@ -19,7 +19,7 @@ jobs:
         with:
           node-version: '18'
       - name: Cache NPM dependencies
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: node_modules
           key: ${{ runner.OS }}-npm-cache