diff --git a/scripts/copy-h5-nav-assets.cjs b/scripts/copy-h5-nav-assets.cjs
index f4349a0..245f95e 100644
--- a/scripts/copy-h5-nav-assets.cjs
+++ b/scripts/copy-h5-nav-assets.cjs
@@ -41,10 +41,26 @@ const copyStaticSubtree = (subtree) => {
   console.log(`Copied ${subtree} assets to ${path.relative(projectRoot, targetDir)}`)
 }
 
+const copyStaticFile = (fileName) => {
+  const sourceFile = path.join(projectRoot, 'static', fileName)
+  const targetFile = path.join(h5Root, 'static', fileName)
+
+  if (!fs.existsSync(sourceFile)) {
+    throw new Error(`Static file not found: ${sourceFile}`)
+  }
+
+  fs.mkdirSync(path.dirname(targetFile), { recursive: true })
+  fs.copyFileSync(sourceFile, targetFile)
+  console.log(`Copied ${fileName} to ${path.relative(projectRoot, targetFile)}`)
+}
+
 copyStaticSubtree('nav-assets')
 copyStaticSubtree('guide-data')
+copyStaticSubtree('icons')
 copyStaticSubtree('sgs-map-sdk')
 copyStaticSubtree('three')
+copyStaticFile('exhibit-placeholder.jpg')
+copyStaticFile('hall-placeholder.jpg')
 
 if (fs.existsSync(faviconSource)) {
   fs.copyFileSync(faviconSource, faviconTarget)
diff --git a/src/components/audio/AudioPlayer.vue b/src/components/audio/AudioPlayer.vue
index 1f43f6a..013987b 100644
--- a/src/components/audio/AudioPlayer.vue
+++ b/src/components/audio/AudioPlayer.vue
@@ -11,7 +11,7 @@
       <view class="player-cover">
         <image 
           class="cover-image" 
-          :src="currentAudio?.image || '/static/exhibit-placeholder.jpg'" 
+          :src="currentAudio?.image || EXHIBIT_PLACEHOLDER_IMAGE" 
           mode="aspectFill" 
         />
       </view>
@@ -56,6 +56,9 @@
 
 <script setup lang="ts">
 import { ref, computed, onMounted, onUnmounted, watch } from 'vue'
+import {
+  EXHIBIT_PLACEHOLDER_IMAGE
+} from '@/utils/placeholders'
 
 export interface AudioItem {
   id: string
diff --git a/src/data/adapters/backendExplainDataAdapter.ts b/src/data/adapters/backendExplainDataAdapter.ts
index c71de88..ac75c83 100644
--- a/src/data/adapters/backendExplainDataAdapter.ts
+++ b/src/data/adapters/backendExplainDataAdapter.ts
@@ -8,6 +8,10 @@ import type {
 import {
   normalizeSameOriginPublicUrl
 } from '@/utils/publicUrl'
+import {
+  EXHIBIT_PLACEHOLDER_IMAGE,
+  HALL_PLACEHOLDER_IMAGE
+} from '@/utils/placeholders'
 
 export interface BackendGuideContent {
   id?: string | number | null
@@ -147,8 +151,10 @@ export const toBackendMuseumExhibit = (
   const targetType = normalizeAudioTargetType(guide?.targetType || source.playTargetType)
   const targetId = stringifyId(guide?.targetId || source.playTargetId)
   const supportedLanguage = source.supportedLanguages?.find((language) => language === 'zh-CN' || language === 'en-US')
-  const hasAudioSummary = source.hasAudio === true && isAudioReady(source.audioStatus)
-  const audioAvailable = Boolean(audioUrl) || hasAudioSummary
+  const metadataSuggestsAudio = source.hasAudio === true && isAudioReady(source.audioStatus)
+  const audioAvailable = Boolean(audioUrl)
+  const sourcePoiId = stringifyId(source.poiId)
+  const location = hall?.location
 
   return {
     id,
@@ -157,9 +163,11 @@ export const toBackendMuseumExhibit = (
     hallName: firstText(source.hallName, hall?.name),
     floorId: stringifyId(source.floorId) || hall?.floorId,
     floorLabel: firstText(source.floorLabel, hall?.floorLabel),
-    image: resolveImage(source) || '/static/exhibit-placeholder.jpg',
+    image: resolveImage(source) || EXHIBIT_PLACEHOLDER_IMAGE,
     description: firstText(source.description, source.narrationText, source.scientificName, '该展项暂无讲解文稿。'),
-    poiId: stringifyId(source.poiId) || undefined,
+    poiId: sourcePoiId || location?.poiId || undefined,
+    sourcePoiId: sourcePoiId || location?.sourcePoiId,
+    location,
     year: firstText(source.era) || undefined,
     material: firstText(source.origin) || undefined,
     size: firstText(source.exhibitCode, source.dimensions) || undefined,
@@ -173,7 +181,9 @@ export const toBackendMuseumExhibit = (
     audioText: options.includeDetail && guideText ? guideText : undefined,
     audioHasText: options.includeDetail ? Boolean(guideText) : undefined,
     audioAvailable,
-    audioUnavailableReason: audioAvailable ? undefined : '该讲解暂无已发布音频，当前提供图文讲解。',
+    audioUnavailableReason: audioAvailable || metadataSuggestsAudio
+      ? undefined
+      : '该讲解暂无已发布音频，当前提供图文讲解。',
     playTargetType: targetType,
     playTargetId: targetId || undefined
   }
@@ -189,7 +199,7 @@ export const toBackendExplainTrack = (exhibit: MuseumExhibit): ExplainTrack => (
   coverImage: exhibit.image,
   poiId: exhibit.poiId,
   floorId: exhibit.floorId,
-  available: Boolean(exhibit.audioUrl) || exhibit.audioAvailable === true,
+  available: Boolean(exhibit.audioUrl),
   playTargetType: exhibit.playTargetType,
   playTargetId: exhibit.playTargetId
 })
@@ -219,7 +229,7 @@ export const toBackendHall = (
     floorId: firstText(first?.floorId, fallback?.floorId) || undefined,
     floorLabel: firstText(first?.floorLabel, fallback?.floorLabel, '楼层待补充'),
     description: fallback?.description || '该展厅讲解内容来自后端展品接口。',
-    image: fallback?.image || '/static/hall-placeholder.jpg',
+    image: fallback?.image || HALL_PLACEHOLDER_IMAGE,
     exhibitCount: exhibits.length,
     area: fallback?.area,
     poiId: fallback?.poiId,
diff --git a/src/data/providers/backendExplainContentProvider.ts b/src/data/providers/backendExplainContentProvider.ts
index 2f1ffa6..33c418d 100644
--- a/src/data/providers/backendExplainContentProvider.ts
+++ b/src/data/providers/backendExplainContentProvider.ts
@@ -1,8 +1,5 @@
 import type {
-  ExplainTrack,
-  MediaAsset,
-  MuseumExhibit,
-  MuseumHall
+  MuseumExhibit
 } from '@/domain/museum'
 import {
   dataSourceConfig
diff --git a/src/pages/exhibit/detail.vue b/src/pages/exhibit/detail.vue
index 1b1bcb1..019ddb3 100644
--- a/src/pages/exhibit/detail.vue
+++ b/src/pages/exhibit/detail.vue
@@ -143,35 +143,15 @@ const detailMeta = computed(() => [
 ].filter(Boolean).join(' · '))
 const hallLocationId = computed(() => exhibit.value.hallId || resolvedHallId.value)
 
-const normalizePoiName = (value: string) => value
-  .trim()
-  .replace(/[\s（）()【】[\]_-]/g, '')
-  .toLowerCase()
-
 // 讲解详情页只定位到所属展厅，不再追踪具体展品点位。
 const resolveHallGuidePoi = async () => {
-  const hallId = exhibit.value.hallId
-  if (hallId) {
-    const hallPoi = await guideUseCase.getPoiById(hallId)
-    if (hallPoi?.kind === 'hall' || hallPoi?.primaryCategory.id === 'exhibition_hall') {
-      return hallPoi
-    }
-  }
-
-  const normalizedTarget = normalizePoiName(exhibit.value.hallName || '')
-  if (!normalizedTarget) return null
-
-  const candidates = await guideUseCase.searchPois(exhibit.value.hallName || exhibit.value.title || '')
-  return candidates.find((candidate) => {
-    const candidateName = normalizePoiName(candidate.name)
-    const candidateHallName = normalizePoiName(candidate.hallName || '')
-    return candidate.kind === 'hall'
-      || candidate.primaryCategory.id === 'exhibition_hall'
-      || candidateName === normalizedTarget
-      || candidateHallName === normalizedTarget
-      || candidateName.includes(normalizedTarget)
-      || normalizedTarget.includes(candidateName)
-  }) || candidates[0] || null
+  return guideUseCase.resolveContentLocationPreviewTarget({
+    directPoiId: exhibit.value.location?.poiId,
+    location: exhibit.value.location,
+    hallId: exhibit.value.hallId,
+    hallName: exhibit.value.hallName,
+    targetName: exhibit.value.title
+  })
 }
 
 onLoad(async (options: any = {}) => {
@@ -288,6 +268,15 @@ const handleAudioError = (_audio: AudioItem | null, message: string) => {
   isPlaying.value = false
   showAudioPlayer.value = false
   currentAudio.value = null
+  exhibit.value = {
+    ...exhibit.value,
+    audio: {
+      ...exhibit.value.audio,
+      status: 'unavailable',
+      url: undefined,
+      unavailableReason: message || '音频加载失败，当前提供图文讲解。'
+    }
+  }
 }
 
 const handleNavigate = async () => {
diff --git a/src/pages/hall/detail.vue b/src/pages/hall/detail.vue
index 6f828f3..550704c 100644
--- a/src/pages/hall/detail.vue
+++ b/src/pages/hall/detail.vue
@@ -95,6 +95,9 @@ import {
   isGuideTopTab,
   type GuideTopTab
 } from '@/utils/guideTopTabs'
+import {
+  HALL_PLACEHOLDER_IMAGE
+} from '@/utils/placeholders'
 
 const activeTopTab = ref<GuideTopTab>('explain')
 const loading = ref(false)
@@ -106,7 +109,7 @@ const hall = ref<HallDetailViewModel>({
   name: '展厅讲解',
   floorLabel: '楼层待补充',
   description: '该展厅暂无介绍文案。',
-  image: '/static/hall-placeholder.jpg',
+  image: HALL_PLACEHOLDER_IMAGE,
   exhibitCount: 0,
   area: '待补充'
 })
@@ -119,12 +122,6 @@ const explainCountText = computed(() => (
 
 const hallLocationPoiId = computed(() => hall.value.poiId || resolvedHallPoiId.value)
 
-const normalizePoiName = (value: string) => value
-  .trim()
-  .replace(/[\s（）()【】[\]_-]/g, '')
-  .toLowerCase()
-
-// 展厅数据里可能没有直接写入 poiId，优先走内容层映射，再按展厅名称兜底匹配导览点位。
 const applyMatchedHallPoi = (matchedPoi: Awaited<ReturnType<typeof guideUseCase.getPoiById>>) => {
   if (!matchedPoi) return
 
@@ -146,26 +143,13 @@ const applyMatchedHallPoi = (matchedPoi: Awaited<ReturnType<typeof guideUseCase.
 }
 
 const resolveHallGuidePoi = async () => {
-  const directPoiId = hall.value.location?.poiId || hall.value.poiId
-  if (directPoiId) {
-    const directPoi = await guideUseCase.getPoiById(directPoiId)
-    if (directPoi) return directPoi
-  }
-
-  const normalizedTarget = normalizePoiName(hall.value.name)
-  if (!normalizedTarget) return null
-
-  const candidates = await guideUseCase.searchPois(hall.value.name)
-  return candidates.find((candidate) => {
-    const candidateName = normalizePoiName(candidate.name)
-    const candidateHallName = normalizePoiName(candidate.hallName || '')
-    return candidate.kind === 'hall'
-      || candidate.primaryCategory.id === 'exhibition_hall'
-      || candidateName === normalizedTarget
-      || candidateHallName === normalizedTarget
-      || candidateName.includes(normalizedTarget)
-      || normalizedTarget.includes(candidateName)
-  }) || candidates[0] || null
+  return guideUseCase.resolveContentLocationPreviewTarget({
+    directPoiId: hall.value.poiId,
+    location: hall.value.location,
+    hallId: hall.value.id,
+    hallName: hall.value.name,
+    targetName: hall.value.name
+  })
 }
 
 const resolveHallGuidePoiInBackground = () => {
diff --git a/src/pages/index/index.vue b/src/pages/index/index.vue
index c06bdae..4db2cf5 100644
--- a/src/pages/index/index.vue
+++ b/src/pages/index/index.vue
@@ -34,7 +34,7 @@
       floor-side="left"
       show-floor-header
       :show-layer-mode-toggle="false"
-      :show-floor="is3DMode"
+      :show-floor="is3DMode && !showRoutePlanner"
       show-zoom-controls
       zoom-controls-top="calc(100vh - 252px)"
       :route-preview="activeRoutePreview"
@@ -858,20 +858,6 @@ const refreshRouteReadinessState = async () => {
   }
 }
 
-const openRoutePlanner = () => {
-  closeOutdoorNavPanel()
-  showRoutePlanner.value = true
-  is3DMode.value = true
-  indoorView.value = indoorView.value === 'overview' ? 'floor' : indoorView.value
-  guideOutdoorState.value = 'home'
-  isPoiCardCollapsed.value = false
-  isSimulatingRoute.value = false
-  if (!routePointOptions.value.length) {
-    void loadRouteTargets()
-  }
-  void refreshRouteReadinessState()
-}
-
 const clearRoutePreviewState = () => {
   guideMapShellRef.value?.clearRoute?.()
   activeRoutePreview.value = null
@@ -1036,7 +1022,15 @@ const handleSwitchEntrance = () => {
 }
 
 const handleMoreRouteGuide = () => {
-  openRoutePlanner()
+  closeOutdoorNavPanel()
+  showRoutePlanner.value = false
+  is3DMode.value = true
+  indoorView.value = 'floor'
+  guideOutdoorState.value = 'home'
+  selectedGuidePoi.value = null
+  isPoiCardCollapsed.value = false
+  isSimulatingRoute.value = false
+  showIndoorHint(`当前楼层：${getGuideFloorLabel(renderedFloorId.value || activeGuideFloor.value) || '馆内单层'}`, 3200)
 }
 
 // 馆外导航处理函数
diff --git a/src/pages/route/detail.vue b/src/pages/route/detail.vue
index ee074b0..b448aa3 100644
--- a/src/pages/route/detail.vue
+++ b/src/pages/route/detail.vue
@@ -114,9 +114,20 @@
       </view>
 
       <view
-        v-else-if="routeViewState === 'preview'"
+        v-else-if="routeViewState === 'preview' && !isIndoorGuidePanelHidden"
         class="indoor-guide-card"
+        :class="{ dragging: isIndoorGuideDragging }"
+        :style="indoorGuideCardStyle"
+        @touchstart.stop="handleIndoorGuideGestureStart"
+        @touchmove.stop="handleIndoorGuideGestureMove"
+        @touchend.stop="handleIndoorGuideGestureEnd"
+        @touchcancel.stop="handleIndoorGuideGestureEnd"
+        @mousedown.stop="handleIndoorGuideMouseStart"
+        @mousemove.stop="handleIndoorGuideMouseMove"
+        @mouseup.stop="handleIndoorGuideMouseEnd"
+        @mouseleave.stop="handleIndoorGuideMouseEnd"
       >
+        <view class="indoor-guide-handle" @tap.stop="hideIndoorGuidePanel"></view>
         <text class="indoor-guide-title">{{ indoorGuideTitle }}</text>
         <text class="indoor-guide-desc">{{ indoorGuideDesc }}</text>
         <view v-if="routePlanError" class="indoor-guide-error">
@@ -140,6 +151,15 @@
           </view>
         </view>
       </view>
+
+      <view
+        v-else-if="routeViewState === 'preview' && isIndoorGuidePanelHidden"
+        class="indoor-guide-peek"
+        @tap="showIndoorGuidePanel"
+      >
+        <view class="indoor-guide-peek-handle"></view>
+        <text class="indoor-guide-peek-text">点位预览</text>
+      </view>
     </GuideMapShell>
   </GuidePageFrame>
 </template>
@@ -207,6 +227,14 @@ const routeReadinessMessage = ref('')
 const routePlanning = ref(false)
 const routePlanError = ref('')
 const activeRoutePreview = ref<GuideRouteResult | null>(null)
+const isIndoorGuidePanelHidden = ref(false)
+const indoorGuideTouchStartY = ref(0)
+const indoorGuideTouchCurrentY = ref(0)
+const indoorGuideTouchStartTime = ref(0)
+const isIndoorGuideDragging = ref(false)
+const indoorGuideHideDistance = 60
+const indoorGuideFastSwipeDistance = 24
+const indoorGuideFastSwipeVelocity = 0.5
 const manualFloors = computed(() => guideFloors.value.map((floor) => floor.label))
 const guideFloorLabel = (floorId: string) => (
   guideFloors.value.find((floor) => floor.id === floorId)?.label || floorId
@@ -336,6 +364,17 @@ const indoorGuideDesc = computed(() => {
     : routeReadinessMessage.value || '当前可查看位置预览，暂不提供正式室内导航。'
 })
 
+const indoorGuideDragOffset = computed(() => Math.max(
+  0,
+  Math.min(120, indoorGuideTouchCurrentY.value - indoorGuideTouchStartY.value)
+))
+
+const indoorGuideCardStyle = computed(() => (
+  indoorGuideDragOffset.value > 0
+    ? { transform: `translateY(${indoorGuideDragOffset.value}px)` }
+    : {}
+))
+
 const safeDecode = (value: string) => {
   try {
     return decodeURIComponent(value)
@@ -456,6 +495,7 @@ const applyRouteOptions = async (options: Record<string, unknown> = {}) => {
     targetFocusRequest.value = null
     activeRoutePreview.value = null
     isManualLocationPanelOpen.value = false
+    isIndoorGuidePanelHidden.value = false
     return false
   }
 
@@ -469,6 +509,7 @@ const applyRouteOptions = async (options: Record<string, unknown> = {}) => {
     targetFocusRequest.value = null
     activeRoutePreview.value = null
     isManualLocationPanelOpen.value = false
+    isIndoorGuidePanelHidden.value = false
     return false
   }
 
@@ -481,6 +522,7 @@ const applyRouteOptions = async (options: Record<string, unknown> = {}) => {
   hasRouteTarget.value = true
   routeViewState.value = isRouteViewState(state) ? state : 'preview'
   isManualLocationPanelOpen.value = false
+  isIndoorGuidePanelHidden.value = false
 
   if (routeViewState.value === 'preview') {
     requestTargetFocus(route.value.targetLocation, matchedPoi.name)
@@ -556,12 +598,95 @@ const handleTargetFocus = (result: TargetPoiFocusResult) => {
 
 const handleReturnToPreview = () => {
   isManualLocationPanelOpen.value = false
+  isIndoorGuidePanelHidden.value = false
   activeRoutePreview.value = null
   routeViewState.value = 'preview'
   requestTargetFocus(route.value.targetLocation)
   saveCurrentLocationPreviewUrl()
 }
 
+const hideIndoorGuidePanel = () => {
+  isIndoorGuidePanelHidden.value = true
+  isIndoorGuideDragging.value = false
+  indoorGuideTouchStartY.value = 0
+  indoorGuideTouchCurrentY.value = 0
+  indoorGuideTouchStartTime.value = 0
+}
+
+const showIndoorGuidePanel = () => {
+  isIndoorGuidePanelHidden.value = false
+  indoorGuideTouchStartY.value = 0
+  indoorGuideTouchCurrentY.value = 0
+  indoorGuideTouchStartTime.value = 0
+}
+
+const getIndoorGuideGestureClientY = (event: TouchEvent | MouseEvent) => {
+  if ('changedTouches' in event) {
+    return event.changedTouches?.[0]?.clientY
+      ?? event.touches?.[0]?.clientY
+      ?? 0
+  }
+
+  return event.clientY
+}
+
+const startIndoorGuidePanelDrag = (clientY: number) => {
+  isIndoorGuideDragging.value = true
+  indoorGuideTouchStartY.value = clientY
+  indoorGuideTouchCurrentY.value = clientY
+  indoorGuideTouchStartTime.value = Date.now()
+}
+
+const moveIndoorGuidePanelDrag = (clientY: number) => {
+  if (!isIndoorGuideDragging.value) return
+  indoorGuideTouchCurrentY.value = clientY
+}
+
+const finishIndoorGuidePanelDrag = (clientY: number) => {
+  if (!isIndoorGuideDragging.value) return
+  indoorGuideTouchCurrentY.value = clientY
+
+  const distance = indoorGuideTouchCurrentY.value - indoorGuideTouchStartY.value
+  const duration = Math.max(Date.now() - indoorGuideTouchStartTime.value, 1)
+  const velocity = distance / duration
+  const shouldHideByDistance = distance > indoorGuideHideDistance
+  const shouldHideBySpeed = distance > indoorGuideFastSwipeDistance && velocity > indoorGuideFastSwipeVelocity
+
+  if (shouldHideByDistance || shouldHideBySpeed) {
+    hideIndoorGuidePanel()
+    return
+  }
+
+  isIndoorGuideDragging.value = false
+  indoorGuideTouchStartY.value = 0
+  indoorGuideTouchCurrentY.value = 0
+  indoorGuideTouchStartTime.value = 0
+}
+
+const handleIndoorGuideGestureStart = (event: TouchEvent) => {
+  startIndoorGuidePanelDrag(getIndoorGuideGestureClientY(event))
+}
+
+const handleIndoorGuideGestureMove = (event: TouchEvent) => {
+  moveIndoorGuidePanelDrag(getIndoorGuideGestureClientY(event))
+}
+
+const handleIndoorGuideGestureEnd = (event: TouchEvent) => {
+  finishIndoorGuidePanelDrag(getIndoorGuideGestureClientY(event))
+}
+
+const handleIndoorGuideMouseStart = (event: MouseEvent) => {
+  startIndoorGuidePanelDrag(getIndoorGuideGestureClientY(event))
+}
+
+const handleIndoorGuideMouseMove = (event: MouseEvent) => {
+  moveIndoorGuidePanelDrag(getIndoorGuideGestureClientY(event))
+}
+
+const handleIndoorGuideMouseEnd = (event: MouseEvent) => {
+  finishIndoorGuidePanelDrag(getIndoorGuideGestureClientY(event))
+}
+
 const handleRelocate = () => {
   isManualLocationPanelOpen.value = false
   routeViewState.value = 'preview'
@@ -740,7 +865,7 @@ const handlePageBack = () => {
   right: 16px;
   bottom: calc(env(safe-area-inset-bottom) + 116px);
   min-height: 156px;
-  padding: 18px 18px 16px;
+  padding: 24px 18px 16px;
   display: flex;
   flex-direction: column;
   gap: 10px;
@@ -750,6 +875,56 @@ const handlePageBack = () => {
   border-radius: 8px;
   box-shadow: 0 10px 24px rgba(36, 49, 42, 0.14);
   z-index: 45;
+  transition: transform 0.18s ease;
+  touch-action: pan-y;
+}
+
+.indoor-guide-card.dragging {
+  transition: none;
+}
+
+.indoor-guide-handle {
+  position: absolute;
+  top: 8px;
+  left: 50%;
+  width: 42px;
+  height: 4px;
+  transform: translateX(-50%);
+  background: #d5d8cf;
+  border-radius: 999px;
+}
+
+.indoor-guide-peek {
+  position: absolute;
+  left: 50%;
+  bottom: calc(env(safe-area-inset-bottom) + 104px);
+  width: 132px;
+  height: 38px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  gap: 7px;
+  box-sizing: border-box;
+  transform: translateX(-50%);
+  background: rgba(255, 255, 255, 0.96);
+  border: 1px solid #e5e6de;
+  border-radius: 8px;
+  box-shadow: 0 8px 18px rgba(36, 49, 42, 0.14);
+  z-index: 45;
+}
+
+.indoor-guide-peek-handle {
+  width: 22px;
+  height: 4px;
+  background: #151713;
+  border-radius: 999px;
+}
+
+.indoor-guide-peek-text {
+  font-size: 13px;
+  line-height: 18px;
+  font-weight: 600;
+  color: #151713;
 }
 
 .indoor-guide-title {
diff --git a/src/repositories/GuideRepository.ts b/src/repositories/GuideRepository.ts
index 5f03465..5e249c2 100644
--- a/src/repositories/GuideRepository.ts
+++ b/src/repositories/GuideRepository.ts
@@ -68,6 +68,35 @@ const toSearchText = (poi: MuseumPoi) => [
   .join(' ')
   .toLowerCase()
 
+const normalizePoiLookupText = (value: string) => value
+  .trim()
+  .replace(/[\s（）()【】[\]_-]/g, '')
+  .toLowerCase()
+
+const extractNameFromNavPoiId = (id: string) => {
+  const normalized = id.trim()
+  if (!normalized.startsWith('poi_')) return ''
+
+  const segments = normalized.split('_')
+  if (segments.length < 3) return ''
+
+  return segments.slice(2).join('_')
+}
+
+const findPoiByNavIdNameFallback = (pois: MuseumPoi[], id: string) => {
+  const targetName = normalizePoiLookupText(extractNameFromNavPoiId(id))
+  if (!targetName) return null
+
+  return pois.find((poi) => {
+    const name = normalizePoiLookupText(poi.name)
+    const hallName = normalizePoiLookupText(poi.hallName || '')
+    return name === targetName
+      || hallName === targetName
+      || (name && (name.includes(targetName) || targetName.includes(name)))
+      || (hallName && (hallName.includes(targetName) || targetName.includes(hallName)))
+  }) || null
+}
+
 const toLocationPreview = (poi: MuseumPoi): GuideLocationPreview => ({
   poiId: poi.id,
   name: poi.name,
@@ -148,7 +177,7 @@ export class StaticGuideRepository implements GuideRepository {
 
   async getPoiById(id: string) {
     const pois = await this.listPois()
-    return pois.find((poi) => poi.id === id) || null
+    return pois.find((poi) => poi.id === id) || findPoiByNavIdNameFallback(pois, id)
   }
 
   async searchPois(keyword = '') {
@@ -226,6 +255,7 @@ export class SgsSdkGuideRepository implements GuideRepository {
   private floorsCache: MuseumFloor[] | null = null
   private poiCache: MuseumPoi[] | null = null
   private floorAliases: Map<string, string> | null = null
+  private readonly staticFallback = new StaticGuideRepository()
 
   constructor(private readonly provider: SgsSdkApiProvider = defaultSgsSdkApiProvider) {}
 
@@ -299,7 +329,9 @@ export class SgsSdkGuideRepository implements GuideRepository {
 
   async getPoiById(id: string) {
     const pois = await this.listPois()
-    return pois.find((poi) => poi.id === id) || null
+    return pois.find((poi) => poi.id === id)
+      || findPoiByNavIdNameFallback(pois, id)
+      || this.staticFallback.getPoiById(id)
   }
 
   async searchPois(keyword = '') {
diff --git a/src/repositories/PublishedExhibitAudioRepository.ts b/src/repositories/PublishedExhibitAudioRepository.ts
index 49cff82..56ca2d9 100644
--- a/src/repositories/PublishedExhibitAudioRepository.ts
+++ b/src/repositories/PublishedExhibitAudioRepository.ts
@@ -65,6 +65,7 @@ const requestJson = <T>(url: string): Promise<T> => new Promise((resolve, reject
   uni.request({
     url,
     method: 'GET',
+    timeout: 5000,
     success: (response) => {
       const statusCode = Number(response.statusCode || 0)
       if (statusCode < 200 || statusCode >= 300) {
diff --git a/src/usecases/explainUseCase.ts b/src/usecases/explainUseCase.ts
index d7ced28..fcf2e41 100644
--- a/src/usecases/explainUseCase.ts
+++ b/src/usecases/explainUseCase.ts
@@ -52,14 +52,14 @@ export class ExplainUseCase {
   ) {}
 
   private applyTrackAudioState(exhibit: MuseumExhibit, track?: ExplainTrack | null): MuseumExhibit {
-    const hasExhibitAudio = exhibit.audioAvailable === true || Boolean(exhibit.audioUrl)
-    const hasTrackAudio = track?.available === true
+    const hasPlayableAudioUrl = Boolean(exhibit.audioUrl?.trim())
+    const hasTrackTarget = Boolean(track?.playTargetType || track?.playTargetId)
 
-    if (!hasExhibitAudio && !hasTrackAudio) return exhibit
+    if (!hasPlayableAudioUrl && !hasTrackTarget) return exhibit
 
     return {
       ...exhibit,
-      audioAvailable: true,
+      audioAvailable: hasPlayableAudioUrl,
       playTargetType: track?.playTargetType || exhibit.playTargetType,
       playTargetId: track?.playTargetId || exhibit.playTargetId
     }
diff --git a/src/usecases/guideUseCase.ts b/src/usecases/guideUseCase.ts
index 13942c4..a51cd04 100644
--- a/src/usecases/guideUseCase.ts
+++ b/src/usecases/guideUseCase.ts
@@ -1,6 +1,7 @@
 import type {
   GuideDataIntegrityReport,
   GuideFloorDetail,
+  GuideLocationResolution,
   GuideRouteReadiness,
   GuideLocationPreviewPlan,
   GuideMapDiagnostics,
@@ -42,6 +43,21 @@ const formatStartStepText = (startLocation: GuideStartLocation) => {
   return `起点：${startLocation.label}${floorSuffix}${sourceSuffix}`
 }
 
+const normalizeLocationText = (value: string) => value
+  .trim()
+  .replace(/[\s（）()【】[\]_-]/g, '')
+  .toLowerCase()
+
+const isHallLikePoi = (poi: MuseumPoi) => (
+  poi.kind === 'hall'
+  || poi.primaryCategory.id === 'exhibition_hall'
+  || poi.primaryCategory.id === 'touring_poi'
+)
+
+const uniqueStrings = (values: Array<string | undefined>) => Array.from(new Set(
+  values.map((value) => value?.trim()).filter(Boolean) as string[]
+))
+
 const createPreviewSteps = (
   poi: MuseumPoi | null,
   startLocation: GuideStartLocation | null,
@@ -74,6 +90,14 @@ const createPreviewSteps = (
   ]
 }
 
+export interface GuideContentLocationRequest {
+  directPoiId?: string
+  location?: GuideLocationResolution | null
+  hallId?: string
+  hallName?: string
+  targetName?: string
+}
+
 export class GuideUseCase {
   private routeReadinessCache: GuideRouteReadiness | null = null
 
@@ -119,6 +143,71 @@ export class GuideUseCase {
     return this.guide.getPoiById(id)
   }
 
+  private async getPoiByIdIfResolvable(id: string, requireHall = false) {
+    const poi = await this.guide.getPoiById(id)
+    if (!poi) return null
+    if (requireHall && !isHallLikePoi(poi)) return null
+    return poi
+  }
+
+  private async searchBestPoiByName(name: string, requireHall = false) {
+    const normalizedTarget = normalizeLocationText(name)
+    if (!normalizedTarget) return null
+
+    const candidates = await this.guide.searchPois(name)
+    const allowedCandidates = requireHall
+      ? candidates.filter(isHallLikePoi)
+      : candidates
+
+    return allowedCandidates.find((candidate) => {
+      const candidateName = normalizeLocationText(candidate.name)
+      const candidateHallName = normalizeLocationText(candidate.hallName || '')
+      return candidateName === normalizedTarget
+        || candidateHallName === normalizedTarget
+        || candidateName.includes(normalizedTarget)
+        || normalizedTarget.includes(candidateName)
+        || candidateHallName.includes(normalizedTarget)
+        || normalizedTarget.includes(candidateHallName)
+    }) || allowedCandidates[0] || null
+  }
+
+  async resolveContentLocationPreviewTarget(request: GuideContentLocationRequest) {
+    const exactLocationPoiId = request.location?.status === 'exact'
+      ? request.location.poiId
+      : undefined
+    const directIds = uniqueStrings([exactLocationPoiId, request.directPoiId])
+    for (const poiId of directIds) {
+      const poi = await this.getPoiByIdIfResolvable(poiId)
+      if (poi) return poi
+    }
+
+    const bridgedIds = uniqueStrings([request.location?.poiId])
+    for (const poiId of bridgedIds) {
+      const poi = await this.getPoiByIdIfResolvable(poiId)
+      if (poi) return poi
+    }
+
+    const hallIds = uniqueStrings([request.hallId])
+    for (const hallId of hallIds) {
+      const poi = await this.getPoiByIdIfResolvable(hallId, true)
+      if (poi) return poi
+    }
+
+    const hallNames = uniqueStrings([request.hallName])
+    for (const hallName of hallNames) {
+      const poi = await this.searchBestPoiByName(hallName, true)
+      if (poi) return poi
+    }
+
+    const targetNames = uniqueStrings([request.targetName])
+    for (const targetName of targetNames) {
+      const poi = await this.searchBestPoiByName(targetName)
+      if (poi) return poi
+    }
+
+    return null
+  }
+
   getFloorDetail(floorId: string): Promise<GuideFloorDetail | null> {
     return this.guide.getFloorDetail
       ? this.guide.getFloorDetail(floorId)
diff --git a/src/utils/placeholders.ts b/src/utils/placeholders.ts
new file mode 100644
index 0000000..01c65fa
--- /dev/null
+++ b/src/utils/placeholders.ts
@@ -0,0 +1,2 @@
+export const EXHIBIT_PLACEHOLDER_IMAGE = '/static/icons/marker-exhibit.svg'
+export const HALL_PLACEHOLDER_IMAGE = '/static/icons/marker-hall.svg'
diff --git a/src/utils/publicUrl.ts b/src/utils/publicUrl.ts
index b934df8..80df70c 100644
--- a/src/utils/publicUrl.ts
+++ b/src/utils/publicUrl.ts
@@ -14,7 +14,10 @@ export const normalizeSameOriginPublicUrl = (url: string | null | undefined) =>
     if (
       isSameServer
       && parsed.port === '9000'
-      && parsed.pathname.startsWith('/museum-assets/')
+      && (
+        parsed.pathname.startsWith('/museum-assets/')
+        || parsed.pathname.startsWith('/tts-audio/')
+      )
     ) {
       return `${parsed.pathname}${parsed.search}${parsed.hash}`
     }
diff --git a/src/view-models/explainViewModels.ts b/src/view-models/explainViewModels.ts
index 21549b6..2354e7f 100644
--- a/src/view-models/explainViewModels.ts
+++ b/src/view-models/explainViewModels.ts
@@ -4,6 +4,10 @@ import type {
   MuseumHall,
   SearchIndexItem
 } from '@/domain/museum'
+import {
+  EXHIBIT_PLACEHOLDER_IMAGE,
+  HALL_PLACEHOLDER_IMAGE
+} from '@/utils/placeholders'
 
 export type ExplainContentType = 'hall' | 'zone' | 'exhibit' | 'theme'
 export type ExplainAudioStatus = 'playable' | 'unavailable' | 'none'
@@ -108,8 +112,10 @@ const languageLabelFor = (language?: string) => {
   return language || undefined
 }
 
+const hasPlayableAudioUrl = (exhibit: MuseumExhibit) => Boolean(exhibit.audioUrl?.trim())
+
 export const toExplainCardViewModel = (exhibit: MuseumExhibit): ExplainCardViewModel => {
-  const hasPlayableAudio = exhibit.audioAvailable === true || Boolean(exhibit.audioUrl)
+  const hasPlayableAudio = hasPlayableAudioUrl(exhibit)
   const audioStatus: ExplainAudioStatus = hasPlayableAudio ? 'playable' : 'unavailable'
   const location = exhibit.location
 
@@ -140,7 +146,7 @@ export const toExplainCardViewModel = (exhibit: MuseumExhibit): ExplainCardViewM
 export const toExplainExhibitViewModel = (exhibit: MuseumExhibit): ExplainExhibitViewModel => toExplainCardViewModel(exhibit)
 
 export const toExplainDetailPageViewModel = (exhibit: MuseumExhibit): ExplainDetailPageViewModel => {
-  const hasPlayableAudio = exhibit.audioAvailable === true || Boolean(exhibit.audioUrl)
+  const hasPlayableAudio = hasPlayableAudioUrl(exhibit)
   const metadataLines = [
     exhibit.size ? `展品编号：${exhibit.size}` : '',
     exhibit.year ? `年代：${exhibit.year}` : '',
@@ -157,7 +163,7 @@ export const toExplainDetailPageViewModel = (exhibit: MuseumExhibit): ExplainDet
     title: exhibit.name,
     subtitle: buildSubtitle(exhibit),
     contentType: contentTypeFor(exhibit),
-    coverImages: [exhibit.image || '/static/exhibit-placeholder.jpg'].filter(Boolean),
+    coverImages: [exhibit.image || EXHIBIT_PLACEHOLDER_IMAGE].filter(Boolean),
     hallId: exhibit.hallId,
     hallName: exhibit.hallName,
     floorLabel: exhibit.floorLabel,
@@ -191,7 +197,7 @@ export const toHallDetailViewModel = (hall: MuseumHall): HallDetailViewModel =>
   name: hall.name,
   floorLabel: hall.floorLabel || '楼层待补充',
   description: hall.description || '该展厅暂无介绍文案。',
-  image: hall.image || '/static/hall-placeholder.jpg',
+  image: hall.image || HALL_PLACEHOLDER_IMAGE,
   exhibitCount: hall.exhibitCount || 0,
   area: hall.area,
   poiId: hall.location?.poiId || hall.poiId,
diff --git a/static/exhibit-placeholder.jpg b/static/exhibit-placeholder.jpg
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diff --git a/static/hall-placeholder.jpg b/static/hall-placeholder.jpg
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diff --git a/static/icons/halls/animal.jpg b/static/icons/halls/animal.jpg
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diff --git a/static/icons/halls/universe.jpg b/static/icons/halls/universe.jpg
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