diff --git a/src/views/components/AppUserCell.vue b/src/views/components/AppUserCell.vue
index 5215b94..eb2866d 100644
--- a/src/views/components/AppUserCell.vue
+++ b/src/views/components/AppUserCell.vue
@@ -7,20 +7,13 @@ import { computed } from 'vue'
  * 后台各列表共用的「用户」单元格。
  *
  * 口径：已登录显示昵称 + uid；未登录显示「游客」标签 + deviceId（单行省略，悬浮看全值）。
- * 第二行只展示客户端平台（Android / iOS），老客户端没上报时显示横线。
+ * 客户端平台由独立的「系统」列展示，这里不再重复。
  */
 const props = defineProps({
   row: { type: Object, required: true }
 })
 
-const PLATFORM_TEXT = { ANDROID: 'Android', IOS: 'iOS', WEB: 'Web' }
-
 const isGuest = computed(() => props.row?.userId == null)
-
-const platformText = computed(() => {
-  const platform = props.row?.platform || ''
-  return PLATFORM_TEXT[platform] || platform || '—'
-})
 </script>
 
 <template>
@@ -37,7 +30,6 @@ const platformText = computed(() => {
       }}</span>
       <span class="app-user-uid">{{ row.uid || `用户 #${row.userId}` }}</span>
     </template>
-    <span class="app-user-platform">{{ platformText }}</span>
   </div>
 </template>
 
@@ -48,9 +40,4 @@ const platformText = computed(() => {
   text-overflow: ellipsis;
   white-space: nowrap;
 }
-
-.app-user-platform {
-  color: #b0adbd;
-  font-size: 12px;
-}
 </style>
diff --git a/src/views/userManagement/FavoritesView.vue b/src/views/userManagement/FavoritesView.vue
index 51f677e..105a85f 100644
--- a/src/views/userManagement/FavoritesView.vue
+++ b/src/views/userManagement/FavoritesView.vue
@@ -6,6 +6,7 @@ import dayjs from 'dayjs'
 import PageHeading from '@/views/components/PageHeading.vue'
 import AppUserCell from '@/views/components/AppUserCell.vue'
 import { pageFavoritesApi } from '@/api/admin/engagement'
+import { platformText } from './composables/useAppUsers'
 
 const PAGE_SIZES = [10, 20, 50]
 
@@ -110,6 +111,9 @@ onMounted(load)
           <AppUserCell :row="row" />
         </template>
       </el-table-column>
+      <el-table-column label="系统" width="100">
+        <template #default="{ row }">{{ platformText(row) }}</template>
+      </el-table-column>
       <el-table-column label="短剧" min-width="220">
         <template #default="{ row }">
           <div class="engagement-drama">
diff --git a/src/views/userManagement/LikesView.vue b/src/views/userManagement/LikesView.vue
index f838288..cf169be 100644
--- a/src/views/userManagement/LikesView.vue
+++ b/src/views/userManagement/LikesView.vue
@@ -6,6 +6,7 @@ import dayjs from 'dayjs'
 import PageHeading from '@/views/components/PageHeading.vue'
 import AppUserCell from '@/views/components/AppUserCell.vue'
 import { pageLikesApi } from '@/api/admin/engagement'
+import { platformText } from './composables/useAppUsers'
 
 const PAGE_SIZES = [10, 20, 50]
 const TARGET_OPTIONS = [
@@ -133,6 +134,9 @@ onMounted(load)
           <AppUserCell :row="row" />
         </template>
       </el-table-column>
+      <el-table-column label="系统" width="100">
+        <template #default="{ row }">{{ platformText(row) }}</template>
+      </el-table-column>
       <el-table-column label="目标类型" width="110">
         <template #default="{ row }">{{ typeText(row.targetType) }}</template>
       </el-table-column>
diff --git a/src/views/userManagement/WatchHistoryView.vue b/src/views/userManagement/WatchHistoryView.vue
index 8fd78b4..1feb6db 100644
--- a/src/views/userManagement/WatchHistoryView.vue
+++ b/src/views/userManagement/WatchHistoryView.vue
@@ -5,7 +5,7 @@ import { onMounted, reactive, ref } from 'vue'
 import PageHeading from '@/views/components/PageHeading.vue'
 import AppUserCell from '@/views/components/AppUserCell.vue'
 import { pageWatchHistoryApi } from '@/api/admin/appUser'
-import { formatDuration } from './composables/useAppUsers'
+import { formatDuration, platformText } from './composables/useAppUsers'
 
 const SOURCE_OPTIONS = [
   { value: '', label: '全部' },
@@ -174,6 +174,9 @@ onMounted(load)
           <AppUserCell :row="row" />
         </template>
       </el-table-column>
+      <el-table-column label="系统" width="100">
+        <template #default="{ row }">{{ platformText(row) }}</template>
+      </el-table-column>
       <el-table-column label="短剧" min-width="190">
         <template #default="{ row }">
           <el-tooltip :content="contentTooltip(row)" placement="top">
diff --git a/src/views/userManagement/composables/useAppUsers.js b/src/views/userManagement/composables/useAppUsers.js
index 46d3226..2cdf69c 100644
--- a/src/views/userManagement/composables/useAppUsers.js
+++ b/src/views/userManagement/composables/useAppUsers.js
@@ -36,6 +36,12 @@ export function statusMeta(status) {
 
 const PLATFORM_TEXT = { ANDROID: 'Android', IOS: 'iOS', WEB: 'Web' }
 
+/** 客户端平台，只有 iOS / Android 两种取值（缺记录显示横线）。 */
+export function platformText(row) {
+  const platform = row?.platform || ''
+  return PLATFORM_TEXT[platform] || platform || '—'
+}
+
 /** 登录会话上的系统，例如 Android 16。没有记录时显示横线。 */
 export function systemText(row) {
   const name = PLATFORM_TEXT[row?.platform] || row?.platform || ''