diff --git a/.gitea/workflows/build.yml b/.gitea/workflows/build.yml
index bfb90ea..81a4944 100644
--- a/.gitea/workflows/build.yml
+++ b/.gitea/workflows/build.yml
@@ -24,7 +24,11 @@ concurrency:
 
 env:
   REGISTRY: docker.io
-  DOCKER_USER: ${{ secrets.DOCKER_USERNAME || 'mag1666888' }}
+  # Docker Hub 命名空间：itom-group
+  DOCKER_USER: itom-group
+  # Docker Hub 凭证来自仓库 Secrets
+  DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
+  DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
   GO_VERSION: "1.24"
 
 jobs:
@@ -122,8 +126,9 @@ jobs:
       uses: docker/login-action@v3.3.0
       with:
         registry: ${{ env.REGISTRY }}
-        username: ${{ secrets.DOCKER_USERNAME }}
-        password: ${{ secrets.DOCKER_PASSWORD }}
+        # 使用账号登录，镜像仍推送到 DOCKER_USER 命名空间
+        username: ${{ env.DOCKER_USERNAME }}
+        password: ${{ env.DOCKER_PASSWORD }}
 
     - name: 设置 Docker Buildx
       uses: docker/setup-buildx-action@v3.8.0
@@ -532,4 +537,4 @@ jobs:
         echo "- \`$DOCKER_USER/openim-rpc-group:$VERSION_TAG\`" >> $GITHUB_STEP_SUMMARY
         echo "- \`$DOCKER_USER/openim-rpc-conversation:$VERSION_TAG\`" >> $GITHUB_STEP_SUMMARY
         echo "- \`$DOCKER_USER/openim-rpc-third:$VERSION_TAG\`" >> $GITHUB_STEP_SUMMARY
-        echo "- \`$DOCKER_USER/openim-rpc-msg:$VERSION_TAG\`" >> $GITHUB_STEP_SUMMARY
\ No newline at end of file
+        echo "- \`$DOCKER_USER/openim-rpc-msg:$VERSION_TAG\`" >> $GITHUB_STEP_SUMMARY
diff --git a/.gitea/workflows/itom-platform-auto-build.yml b/.gitea/workflows/itom-platform-auto-build.yml
index 5b42ea7..3173df2 100644
--- a/.gitea/workflows/itom-platform-auto-build.yml
+++ b/.gitea/workflows/itom-platform-auto-build.yml
@@ -15,8 +15,10 @@ jobs:
     runs-on: openim
 
     env:
-      REGISTRY: git.imall.cloud
-      IMAGE: git.imall.cloud/itom-group/open-im-server-deploy
+      # 使用 Docker Hub 作为镜像仓库
+      REGISTRY: docker.io
+      # Docker Hub 命名空间：itom-group
+      IMAGE: docker.io/itom-group/open-im-server-deploy
     steps:
       - name: Install git
         shell: sh
@@ -117,47 +119,17 @@ jobs:
       - name: Login registry
         shell: sh
         env:
-          GIT_USER: ${{ secrets.GIT_USER }}
-          GIT_TOKEN: ${{ secrets.GIT_TOKEN }}
-          REGISTRY_USER: ${{ secrets.REGISTRY_USER }}
-          REGISTRY_PASSWORD: ${{ secrets.REGISTRY_PASSWORD }}
-          AUTO_REGISTRY_USER: ${{ secrets.DOCKER_USERNAME }}
-          AUTO_REGISTRY_PASS: ${{ secrets.DOCKER_PASSWORD }}
-
+          # Docker Hub 凭证来自仓库 Secrets
+          DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
+          DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
         run: |
           set -eu
-          login_try() {
-            local user="$1"
-            local pass="$2"
-            local label="$3"
-            if [ -z "$user" ] || [ -z "$pass" ]; then
-              return 1
-            fi
-            if echo "$pass" | docker login "$REGISTRY" -u "$user" --password-stdin >/dev/null 2>&1; then
-              echo "Registry login ok ($label)"
-              return 0
-            fi
-            return 1
-          }
-
-          if login_try "$REGISTRY_USER" "$REGISTRY_PASSWORD" "REGISTRY_USER"; then
-            exit 0
+          # 使用 Docker Hub 凭证登录，统一仓库镜像出口
+          if [ -z "${DOCKER_USERNAME:-}" ] || [ -z "${DOCKER_PASSWORD:-}" ]; then
+            echo "ERROR: 缺少 Docker Hub 凭证（DOCKER_USERNAME/DOCKER_PASSWORD）。"
+            exit 1
           fi
-          if login_try "$GIT_USER" "$GIT_TOKEN" "GIT_USER"; then
-            exit 0
-          fi
-          if login_try "${AUTO_REGISTRY_USER:-}" "${AUTO_REGISTRY_PASS:-}" "AUTO_REGISTRY"; then
-            exit 0
-          fi
-
-          ACTOR="${GITEA_ACTOR:-${FORGEJO_ACTOR:-${GITHUB_ACTOR:-}}}"
-          JOB_TOKEN="${GITEA_TOKEN:-${FORGEJO_TOKEN:-${GITHUB_TOKEN:-}}}"
-          if login_try "$ACTOR" "$JOB_TOKEN" "JOB_TOKEN"; then
-            exit 0
-          fi
-
-          echo "ERROR: registry login failed. Provide REGISTRY_USER/REGISTRY_PASSWORD or GIT_USER/GIT_TOKEN with packages write permission."
-          exit 1
+          echo "$DOCKER_PASSWORD" | docker login "$REGISTRY" -u "$DOCKER_USERNAME" --password-stdin
 
       - name: Build and push images
         shell: sh