diff --git a/.github/workflows/sync.yml b/.github/workflows/sync.yml
new file mode 100644
index 0000000..24facf2
--- /dev/null
+++ b/.github/workflows/sync.yml
@@ -0,0 +1,97 @@
+name: Sync to Gitee and GitCode
+
+on:
+  push:
+    branches:
+      - '**'                # 所有分支推送时触发
+  workflow_dispatch:        # 允许手动执行
+
+jobs:
+  sync:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Setup Git user
+        run: |
+          git config --global user.name "GitHub Action"
+          git config --global user.email "action@github.com"
+
+      - name: Extract repo and owner names
+        run: |
+          # 从 github.repository (格式: owner/repo) 中提取
+          REPO_NAME="${GITHUB_REPOSITORY##*/}"
+          OWNER_NAME="${GITHUB_REPOSITORY%%/*}"
+          echo "REPO_NAME=$REPO_NAME" >> $GITHUB_ENV
+          echo "OWNER_NAME=$OWNER_NAME" >> $GITHUB_ENV
+          echo "当前仓库: $OWNER_NAME/$REPO_NAME"
+
+      # ==================== Gitee（自动创建公开仓库 + 推送）====================
+      - name: Create Gitee public repository if not exists
+        run: |
+          echo "检查 Gitee 仓库是否存在..."
+          HTTP_CODE=$(curl -s -o /dev/null -w "%{http_code}" \
+            -H "Authorization: token ${{ secrets.GITEE_TOKEN }}" \
+            "https://gitee.com/api/v5/repos/${{ env.OWNER_NAME }}/${{ env.REPO_NAME }}")
+
+          if [ "$HTTP_CODE" = "404" ]; then
+            echo "仓库不存在，正在自动创建公开仓库..."
+            curl -X POST "https://gitee.com/api/v5/user/repos" \
+              -H "Content-Type: application/json" \
+              -H "Authorization: token ${{ secrets.GITEE_TOKEN }}" \
+              -d "{
+                \"name\": \"${{ env.REPO_NAME }}\",
+                \"private\": false,
+                \"auto_init\": false
+              }"
+            echo "✅ Gitee 公开仓库创建完成"
+          elif [ "$HTTP_CODE" = "200" ]; then
+            echo "✅ Gitee 仓库已存在，跳过创建"
+          else
+            echo "⚠️ Gitee API 返回状态码: $HTTP_CODE，继续尝试推送"
+          fi
+
+      - name: Push to Gitee
+        run: |
+          git remote add gitee https://${{ env.OWNER_NAME }}:${{ secrets.GITEE_TOKEN }}@gitee.com/${{ env.OWNER_NAME }}/${{ env.REPO_NAME }}.git
+          git push gitee --all --force
+          git push gitee --tags --force
+
+         # ==================== GitCode（自动创建公开仓库 + 推送）====================
+      - name: Create GitCode public repository if not exists
+        run: |
+          echo "检查 GitCode 仓库是否存在..."
+          # 列出用户所有仓库，查找同名仓库
+          REPOS_JSON=$(curl -s "https://api.gitcode.com/api/v5/user/repos?access_token=${{ secrets.GITCODE_TOKEN }}&per_page=100")
+          EXISTS=$(echo "$REPOS_JSON" | grep -o "\"name\":\"${{ env.REPO_NAME }}\"" || true)
+
+          if [ -z "$EXISTS" ]; then
+            echo "仓库不存在，正在自动创建公开仓库..."
+            RESPONSE=$(curl -s -X POST "https://api.gitcode.com/api/v5/user/repos?access_token=${{ secrets.GITCODE_TOKEN }}" \
+              -H "Content-Type: application/json" \
+              -d "{
+                \"name\": \"${{ env.REPO_NAME }}\",
+                \"private\": false,
+                \"auto_init\": false,
+                \"repository_type\": \"code\"
+              }")
+            echo "API 响应: $RESPONSE"
+            if echo "$RESPONSE" | grep -q '"id":'; then
+              echo "✅ GitCode 公开仓库创建成功"
+            else
+              echo "❌ GitCode 仓库创建失败，请检查 Token 权限或手动创建"
+              exit 1
+            fi
+          else
+            echo "✅ GitCode 仓库已存在，跳过创建"
+          fi
+
+      - name: Push to GitCode
+        run: |
+          # 推送认证：用户名 git，密码为 Token
+          git remote add gitcode https://git:${{ secrets.GITCODE_TOKEN }}@gitcode.com/${{ env.OWNER_NAME }}/${{ env.REPO_NAME }}.git
+          git push gitcode --all --force
+          git push gitcode --tags --force
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