修复微信内嵌点位搜索导航

src/components/search/PoiSearchPanel.vue

@@ -14,7 +14,7 @@
     @mouseup="handlePanelMouseEnd"
     @mouseleave="resetPanelMouse"
   >
-    <view v-if="variant === 'home' && showSearchContent" class="home-fullscreen-nav">
+    <view v-if="showHomeFullscreenNav" class="home-fullscreen-nav">
       <view class="home-back-button" data-testid="poi-search-cancel" @tap.stop="handleCancel">
         <text class="home-back-icon">‹</text>
       </view>
@@ -245,6 +245,7 @@ import type {
   PoiCategoryResultState,
   PoiSearchContext
 } from '@/domain/poiSearch'
+import { isEmbeddedInWechatMiniProgram } from '@/utils/hostEnvironment'
 
 const props = withDefaults(defineProps<{
   initialKeyword?: string
@@ -308,6 +309,12 @@ let searchRequestSeq = 0
 const collapseDragThreshold = 48
 const homeExpandTapGuardMs = 360
 const showSearchContent = computed(() => props.variant === 'page' || homeExpanded.value)
+const shouldUseHostNavigation = computed(() => isEmbeddedInWechatMiniProgram())
+const showHomeFullscreenNav = computed(() => (
+  props.variant === 'home'
+  && showSearchContent.value
+  && !shouldUseHostNavigation.value
+))
 const isHomeCategoryMode = computed(() => (
   props.variant === 'home' && homeCategoryMode.value && !homeExpanded.value
 ))