diff --git a/src/components/explain/ExplainHallSelect.vue b/src/components/explain/ExplainHallSelect.vue
index 3564ff8..2a70884 100644
--- a/src/components/explain/ExplainHallSelect.vue
+++ b/src/components/explain/ExplainHallSelect.vue
@@ -223,7 +223,7 @@ const shouldUseHostNavigation = computed(() => isEmbeddedInWechatMiniProgram())
 const showInternalHeader = computed(() => props.forceInternalHeader || !shouldUseHostNavigation.value)
 const headerTitle = computed(() => {
   if (props.stage === 'stop') return props.selectedHallName || '讲解对象'
-  return '展厅讲解'
+  return '免费讲解'
 })
 const loadingTitle = computed(() => {
   if (props.stage === 'stop') return '正在加载讲解对象'
diff --git a/src/pages.json b/src/pages.json
index b0ad303..b6a2272 100644
--- a/src/pages.json
+++ b/src/pages.json
@@ -25,7 +25,7 @@
     {
       "path": "pages/explain/list",
       "style": {
-        "navigationBarTitleText": "全部讲解",
+        "navigationBarTitleText": "免费讲解",
         "navigationBarBackgroundColor": "#FFFFFF",
         "navigationStyle": "custom"
       }
diff --git a/src/pages/explain/list.vue b/src/pages/explain/list.vue
index 6adead1..7d4e4dc 100644
--- a/src/pages/explain/list.vue
+++ b/src/pages/explain/list.vue
@@ -10,7 +10,7 @@
       <ExplainHallSelect
         :halls="explainHallItems"
         stage="hall"
-        force-internal-header
+        :force-internal-header="!shouldUseHostNavigation"
         :loading="explainLoading"
         :error="explainError"
         @hall-click="handleExplainHallClick"
diff --git a/tests/unit/ExplainHallSelect.spec.ts b/tests/unit/ExplainHallSelect.spec.ts
index 46e22aa..1e6a76a 100644
--- a/tests/unit/ExplainHallSelect.spec.ts
+++ b/tests/unit/ExplainHallSelect.spec.ts
@@ -83,7 +83,7 @@ describe('讲解展厅选择列表', () => {
     })
 
     const card = wrapper.get('.hall-overview-card')
-    expect(wrapper.get('.header-title').text()).toBe('展厅讲解')
+    expect(wrapper.get('.header-title').text()).toBe('免费讲解')
     expect(card.attributes('style')).toContain('--hall-card-color: #d9b06c')
     expect(card.text()).toContain('恐龙厅')
     expect(card.text()).not.toContain('Dinosaur Hall')
diff --git a/tests/unit/ExplainListNavigation.spec.ts b/tests/unit/ExplainListNavigation.spec.ts
index 1836a95..095ea64 100644
--- a/tests/unit/ExplainListNavigation.spec.ts
+++ b/tests/unit/ExplainListNavigation.spec.ts
@@ -106,13 +106,13 @@ describe('讲解展厅列表返回', () => {
     wrapper.unmount()
   })
 
-  it('独立页在微信嵌入态强制提供 H5 返回，并保留宿主识别参数', async () => {
+  it('微信嵌入态由宿主导航提供标题与返回，不渲染重复的 H5 页头', async () => {
     hostEnvironmentMocks.embeddedInWechatMiniProgram = true
     window.location.hash = '#/pages/explain/list?embedded=wechat-mini-program&weapp=1'
     window.history.replaceState({}, '', window.location.href)
     const wrapper = mountExplainList()
 
-    expect(wrapper.getComponent(ExplainHallSelectStub).props('forceInternalHeader')).toBe(true)
+    expect(wrapper.getComponent(ExplainHallSelectStub).props('forceInternalHeader')).toBe(false)
     await wrapper.get('[data-testid="explain-list-back"]').trigger('click')
 
     expect(uni.navigateBack).not.toHaveBeenCalled()