diff --git a/src/pages/exhibit/detail.vue b/src/pages/exhibit/detail.vue
index 7f25712..24d1f96 100644
--- a/src/pages/exhibit/detail.vue
+++ b/src/pages/exhibit/detail.vue
@@ -164,6 +164,7 @@ import {
 } from '@/utils/placeholders'
 import { isEmbeddedInWechatMiniProgram } from '@/utils/hostEnvironment'
 import { normalizeGuideAudioLanguage } from '@/data/adapters/guideStopInfoAdapter'
+import { explainGuideStopListUrl } from '@/utils/explainNavigation'
 
 const defaultDetail: ExplainDetailPageViewModel = {
   id: '',
@@ -871,23 +872,53 @@ const handleNavigate = async () => {
   })
 }
 
-const fallbackToExplainHome = () => {
+type ExplainDetailPageStackEntry = {
+  route?: string
+}
+
+const decodeRouteParam = (value: string) => {
+  let decoded = value
+  // Hash route parameters can accumulate extra encoding layers across H5 transitions.
+  for (let index = 0; index < 8; index += 1) {
+    try {
+      const next = decodeURIComponent(decoded)
+      if (next === decoded) break
+      decoded = next
+    } catch {
+      break
+    }
+  }
+
+  return decoded
+}
+
+const fallbackToExplainObjectList = () => {
+  const hallId = detailEntryRequest.value?.hallId || exhibit.value.hallId
+  const hallName = decodeRouteParam(detailEntryRequest.value?.hallName || exhibit.value.hallName || '讲解')
+  const url = hallId
+    ? explainGuideStopListUrl(hallId, hallName)
+    : '/pages/explain/list'
+
   uni.redirectTo({
-    url: '/pages/index/index?tab=explain',
+    url,
     fail: () => {
-      uni.reLaunch({
-        url: '/pages/index/index?tab=explain'
-      })
+      uni.reLaunch({ url })
     }
   })
 }
 
-const handleBack = () => {
-  uni.navigateBack({
-    delta: 1,
-    fail: fallbackToExplainHome
-  })
+const returnToExplainObjectList = () => {
+  const pages = getCurrentPages()
+  const previousPage = pages[pages.length - 2] as ExplainDetailPageStackEntry | undefined
+  if (previousPage?.route === 'pages/explain/guide-stop-list') {
+    uni.navigateBack({ delta: 1, fail: fallbackToExplainObjectList })
+    return
+  }
+
+  fallbackToExplainObjectList()
 }
+
+const handleBack = returnToExplainObjectList
 </script>
 
 <style scoped lang="scss">
diff --git a/tests/unit/ExhibitDetailAudioFirst.spec.ts b/tests/unit/ExhibitDetailAudioFirst.spec.ts
index 3a2f2e8..ff2bc6f 100644
--- a/tests/unit/ExhibitDetailAudioFirst.spec.ts
+++ b/tests/unit/ExhibitDetailAudioFirst.spec.ts
@@ -120,6 +120,7 @@ describe('讲解详情音频优先布局', () => {
       redirectTo: vi.fn(),
       reLaunch: vi.fn()
     })
+    vi.stubGlobal('getCurrentPages', vi.fn(() => []))
   })
 
   afterEach(() => {
@@ -284,7 +285,11 @@ describe('讲解详情音频优先布局', () => {
     }))
   })
 
-  it('顶部返回统一使用页面栈，以便导览首页 onShow 消费复位上下文', async () => {
+  it('上一页是讲解对象列表时使用页面栈返回', async () => {
+    vi.stubGlobal('getCurrentPages', vi.fn(() => [
+      { route: 'pages/explain/guide-stop-list', options: {} },
+      { route: 'pages/exhibit/detail', options: {} }
+    ]))
     const wrapper = mount(ExhibitDetail, {
       global: { stubs: { GuidePageFrame: GuidePageFrameStub } }
     })
@@ -293,5 +298,31 @@ describe('讲解详情音频优先布局', () => {
     await flushPromises()
 
     expect(uni.navigateBack).toHaveBeenCalledWith(expect.objectContaining({ delta: 1 }))
+    expect(uni.redirectTo).not.toHaveBeenCalled()
+  })
+
+  it('深链详情按展厅上下文回退至讲解对象列表', async () => {
+    const wrapper = mount(ExhibitDetail, {
+      global: { stubs: { GuidePageFrame: GuidePageFrameStub } }
+    })
+    await mocks.onLoadHandler?.({
+      id: exhibit.id,
+      lang: 'en-US',
+      targetType: 'STOP',
+      targetId: 'stop-1',
+      hallId: 'hall-1',
+      hallName: '%2525E6%252581%252590%2525E9%2525BE%252599%2525E5%25258E%252585'
+    })
+    await flushPromises()
+
+    wrapper.getComponent(GuidePageFrameStub).vm.$emit('back')
+    await flushPromises()
+
+    const url = vi.mocked(uni.redirectTo).mock.calls[0]?.[0]?.url || ''
+    const params = new URLSearchParams(url.split('?')[1])
+    expect(url.split('?')[0]).toBe('/pages/explain/guide-stop-list')
+    expect(params.get('hallId')).toBe('hall-1')
+    expect(params.get('hallName')).toBe('恐龙厅')
+    expect(uni.navigateBack).not.toHaveBeenCalled()
   })
 })