修复馆内预览状态与点位展示

src/pages/exhibit/detail.vue

@@ -17,7 +17,7 @@
         <button
           v-if="!shouldUseHostNavigation"
           class="hero-back"
-          aria-label="返回讲解详情"
+          aria-label="返回讲解对象列表"
           @tap.stop="handleBack"
         >
           <text class="hero-back-icon">‹</text>

src/pages/index/index.vue

@@ -424,6 +424,7 @@ const returningToOverview = ref(false)
 // GuideMapShell 组件引用，用于显式调用路线清除方法
 const guideMapShellRef = ref<{
   clearRoute?: () => void
+  switchFloor?: (floorId: string) => Promise<void> | void
   showOverview?: () => Promise<void> | void
   resetToViewBaseline?: (options: {
     view: 'overview' | 'floor'
@@ -1482,12 +1483,24 @@ const handleMoreRouteGuide = async () => {
   closeArrivalPanel()
   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)
+  const floorId = activeGuideFloor.value
+  const floorLabel = getGuideFloorLabel(floorId) || '默认楼层'
+  if (!floorId) {
+    showIndoorHint('暂未获取到可进入的楼层，请稍后重试', 3200)
+    return
+  }
+
+  requestedFloorId.value = floorId
+  requestedFloorLabel.value = floorLabel
+  loadingFloorId.value = floorId
+  failedFloorId.value = ''
+  // 渲染器提交 floor-change 前仍保持建筑外观，避免楼层控件显示假状态。
+  showIndoorHint(`正在进入 ${floorLabel}…`, 3200)
+  await guideMapShellRef.value?.switchFloor?.(floorId)
 }
 
 const selectFirstArrivalTarget = () => {

src/pages/route/detail.vue

@@ -132,6 +132,12 @@
         <view v-if="routePlanError" class="indoor-guide-error">
           <text class="indoor-guide-error-text">{{ routePlanError }}</text>
         </view>
+        <view class="start-point-select" @tap="openStartPointPicker">
+          <text class="start-point-select-label">起点</text>
+          <text class="start-point-select-value" :class="{ placeholder: !selectedStartPoint }">
+            {{ selectedStartPoint ? `${selectedStartPoint.name} · ${selectedStartPoint.floorLabel}` : '请选择起点' }}
+          </text>
+        </view>
         <view class="indoor-guide-actions">
           <view
             class="indoor-guide-btn secondary"
@@ -159,6 +165,19 @@
         <view class="indoor-guide-peek-handle"></view>
         <text class="indoor-guide-peek-text">点位预览</text>
       </view>
+      <RoutePointPicker
+        :visible="startPointPickerVisible"
+        title="选择起点"
+        placeholder="搜索起点"
+        :options="routePointOptions"
+        :selected-poi-id="selectedStartPoint?.poiId || ''"
+        :loading="startPointPickerLoading"
+        :error="startPointPickerError"
+        empty-text="暂无可作为起点的位置"
+        close-text="返回"
+        @close="startPointPickerVisible = false"
+        @select="handleStartPointSelect"
+      />
     </GuideMapShell>
   </GuidePageFrame>
 </template>
@@ -168,6 +187,7 @@ import { computed, onMounted, onUnmounted, ref } from 'vue'
 import { onLoad } from '@dcloudio/uni-app'
 import GuidePageFrame from '@/components/navigation/GuidePageFrame.vue'
 import GuideMapShell from '@/components/navigation/GuideMapShell.vue'
+import RoutePointPicker, { type RoutePointOption } from '@/components/navigation/RoutePointPicker.vue'
 import {
   guideUseCase
 } from '@/usecases/guideUseCase'
@@ -226,6 +246,11 @@ const routeReadinessMessage = ref('')
 const routePlanning = ref(false)
 const routePlanError = ref('')
 const activeRoutePreview = ref<GuideRouteResult | null>(null)
+const selectedStartPoint = ref<RoutePointOption | null>(null)
+const routePointOptions = ref<RoutePointOption[]>([])
+const startPointPickerVisible = ref(false)
+const startPointPickerLoading = ref(false)
+const startPointPickerError = ref('')
 const isIndoorGuidePanelHidden = ref(false)
 const indoorGuideTouchStartY = ref(0)
 const indoorGuideTouchCurrentY = ref(0)
@@ -724,9 +749,41 @@ const handleConfirmLocation = async () => {
   activeFloor.value = startLocation.floor || activeFloor.value
   isManualLocationPanelOpen.value = false
   activeRoutePreview.value = null
+  selectedStartPoint.value = null
   routeViewState.value = 'preview'
   requestTargetFocus(route.value.targetLocation)
   saveCurrentLocationPreviewUrl()
+  routePlanError.value = '请选择起点'
+}
+
+const openStartPointPicker = async () => {
+  startPointPickerVisible.value = true
+  startPointPickerError.value = ''
+  if (routePointOptions.value.length || startPointPickerLoading.value) return
+
+  startPointPickerLoading.value = true
+  try {
+    routePointOptions.value = (await guideRouteUseCase.listTargets())
+      .filter((target) => Boolean(target.poiId && target.routeNodeId))
+      .map((target) => ({
+        poiId: target.poiId,
+        name: target.name,
+        floorId: target.floorId,
+        floorLabel: target.floorLabel,
+        categoryLabel: target.categoryLabel
+      }))
+  } catch (error) {
+    startPointPickerError.value = error instanceof Error ? error.message : '起点列表加载失败，请重试'
+  } finally {
+    startPointPickerLoading.value = false
+  }
+}
+
+const handleStartPointSelect = (point: RoutePointOption) => {
+  selectedStartPoint.value = point
+  startPointPickerVisible.value = false
+  routePlanError.value = ''
+  activeRoutePreview.value = null
 }
 
 const handleStartIndoorGuide = async () => {
@@ -734,37 +791,31 @@ const handleStartIndoorGuide = async () => {
 
   await refreshRouteReadinessState()
   if (!routeReady.value) return
+  if (!selectedStartPoint.value?.poiId) {
+    routePlanError.value = '请选择起点'
+    return
+  }
 
   routePlanning.value = true
   routePlanError.value = ''
 
   try {
     const targets = await guideRouteUseCase.listTargets()
-    const startName = route.value.startLocation?.label || ''
-    const startFloor = route.value.startLocation?.floor || ''
     const targetLocation = route.value.targetLocation
-    const fallbackStart = targets.find((target) => (
-      startName
-        ? target.name.includes(startName) || startName.includes(target.name)
-        : false
-    )) || targets.find((target) => (
-      startFloor
-        ? target.floorLabel === startFloor || target.floorId === normalizeGuideFloorId(startFloor)
-        : false
-    )) || targets.find((target) => target.poiId !== route.value.facilityId)
+    const selectedStart = targets.find((target) => target.poiId === selectedStartPoint.value?.poiId)
 
     const endTarget = targets.find((target) => target.poiId === route.value.facilityId)
       || (targetLocation
         ? targets.find((target) => target.floorId === targetLocation.floorId && target.name === targetLocation.name)
         : null)
 
-    if (!fallbackStart || !endTarget) {
-      routePlanError.value = '未找到可用于位置关系预览的起点或终点'
+    if (!selectedStart || !selectedStart.routeNodeId || !endTarget) {
+      routePlanError.value = selectedStart ? '未找到可用于位置关系预览的终点' : '请选择起点'
       return
     }
 
     const result = await guideRouteUseCase.planRoute({
-      startPoiId: fallbackStart.poiId,
+      startPoiId: selectedStart.poiId,
       endPoiId: endTarget.poiId
     })
 
@@ -952,6 +1003,41 @@ const handlePageBack = () => {
   color: #b44b42;
 }
 
+.start-point-select {
+  min-height: 44px;
+  padding: 0 12px;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+  box-sizing: border-box;
+  background: #f5f7f2;
+  border: 1px solid #e4e5df;
+  border-radius: 8px;
+}
+
+.start-point-select-label {
+  flex: 0 0 auto;
+  font-size: 13px;
+  line-height: 18px;
+  color: #545861;
+}
+
+.start-point-select-value {
+  min-width: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  font-size: 14px;
+  line-height: 19px;
+  font-weight: 500;
+  color: #151713;
+}
+
+.start-point-select-value.placeholder {
+  color: #7a7e76;
+}
+
 .indoor-guide-actions {
   display: flex;
   gap: 10px;