diff --git a/web/src/display/components/OfflineBadge.vue b/web/src/display/components/OfflineBadge.vue
index f9240b8..3a6f3b5 100644
--- a/web/src/display/components/OfflineBadge.vue
+++ b/web/src/display/components/OfflineBadge.vue
@@ -1,12 +1,16 @@
 <script setup lang="ts">
 import { computed } from 'vue'
 import { useScoreboard } from '../useScoreboard'
+import { isWindowed } from '../windowed'
 
 const { booted, status, source, version, authRequired } = useScoreboard()
 
 // connecting 是启动瞬间的正常状态，闪「连接中断」会误报；只有真正断开才提示。
 const offline = computed(() => booted.value && status.value === 'offline')
 const mock = computed(() => source.value === 'mock')
+// 数据版本号（change_log 版本）是给现场核对「这块屏有没有跟上服务端」用的调试信息，
+// 与「实例 · 屏」同规矩：只在窗口化调试时显示，kiosk 全屏不出现。
+const showVersion = computed(() => isWindowed() && version.value !== null)
 </script>
 
 <template>
@@ -14,7 +18,7 @@ const mock = computed(() => source.value === 'mock')
     <span v-if="mock" class="badge mock">示例数据</span>
     <span v-if="authRequired" class="badge auth">登录已失效 · 请重新登录</span>
     <span v-if="offline" class="badge offline">⚠ 连接中断 · 数据可能不是最新</span>
-    <span v-if="version !== null" class="badge version">v{{ version }}</span>
+    <span v-if="showVersion" class="badge version">v{{ version }}</span>
   </div>
 </template>