diff --git a/src/modules/cockpit/components/MapInfoPanel.vue b/src/modules/cockpit/components/MapInfoPanel.vue
index 8668e75..b91d3f1 100644
--- a/src/modules/cockpit/components/MapInfoPanel.vue
+++ b/src/modules/cockpit/components/MapInfoPanel.vue
@@ -43,0 +44,9 @@
+        <p class="map-info__note" data-pipe-model-note>{{ PIPE_MODEL_NOTE }}</p>
+        <p v-if="pipeModelState" class="map-info__line" data-pipe-model-status role="status">
+            管道模型 {{ pipeModelState.instances }} 实例 / {{ pipeModelState.batches }} 批 ·
+            折线/符号 {{ pipeModelState.fallback }} 对象
+            <template v-if="pipeModelState.planning || pipeModelState.pending"> · 模型加载中（保留降级表达）</template>
+            <template v-if="pipeModelState.failed"> · {{ pipeModelState.failed }} 批素材失败，已降级</template>
+            <template v-if="pipeModelState.terrainFailed"> · 地表高程采样失败，已保留折线/符号，稍后刷新重试</template>
+        </p>
+
@@ -59,0 +69,5 @@ import MapCoordinateBlocked from './MapCoordinateBlocked.vue'
+import { PIPE_MODEL_NOTE } from '../domain/pipeModels.js'
+
+const pipeModelState = ref(null)
+let modelHost = null
+const updatePipeModelState = (event) => { pipeModelState.value = event.detail }
@@ -102,0 +117,2 @@ onMounted(() => {
+        modelHost = host
+        host.addEventListener('cockpit-pipe-model-state', updatePipeModelState)
@@ -107,0 +124,2 @@ onBeforeUnmount(() => {
+    if (modelHost) modelHost.removeEventListener('cockpit-pipe-model-state', updatePipeModelState)
+    modelHost = null
diff --git a/src/modules/cockpit/services/cesiumPipeLayer.js b/src/modules/cockpit/services/cesiumPipeLayer.js
index ddb0620..6dcb74a 100644
--- a/src/modules/cockpit/services/cesiumPipeLayer.js
+++ b/src/modules/cockpit/services/cesiumPipeLayer.js
@@ -12,5 +12,4 @@
- * 渲染口径（与 `domain/pipeNetwork.js` 同源，引擎不再做第二次判定）：
- *   · 管段：`clampToGround` 贴地折线，管径映射线宽，行业映射颜色；
- *   · 构件：阀门 / 角管道 / 支管管道各用**可辨识符号 + 中文标签**表达。
- *     glTF 预制构件实例化需要素材库，仓库内暂无管线素材，故先用符号表达并保留扩展位——
- *     **不拿临时符号冒充"已建成的管道模型"**。
+ * 渲染口径（与领域建模计划同源，引擎不再做第二次准入判定）：
+ *   · 已知管径/类型：独立 Cesium GPU 批次、地表采样减虚拟埋深 2m；
+ *   · 模型未就绪、缺管径/类型/素材/高程：保留贴地折线或符号标签。
+ *     glTF 在 readyEvent 后替代降级表达，示意外形与近似朝向不冒充真实安装信息。
@@ -20,0 +20,5 @@ import { pipeWidth } from '../domain/pipeNetwork.js'
+// Viewer-scoped batches; loaded lazily so symbol-only/headless paths do not load the model adapter.
+const modelLayers = new WeakMap()
+const layerVersions = new WeakMap()
+let modelAdapterPromise = null
+
@@ -124,2 +152,4 @@ function componentEntity(code, component) {
-export async function syncPipeLayer(viewer, network) {
-    if (!viewer || !viewer.dataSources) return { pipes: 0, components: 0, rendered: false }
+export async function syncPipeLayer(viewer, network, { onModelChange = () => {} } = {}) {
+    if (!viewer || !viewer.dataSources) return { pipes: 0, components: 0, rendered: false, added: 0, updated: 0, removed: 0, unchanged: 0 }
+    const version = (layerVersions.get(viewer) || 0) + 1
+    layerVersions.set(viewer, version)
@@ -128,0 +159 @@ export async function syncPipeLayer(viewer, network) {
+    if (layerVersions.get(viewer) !== version) return { pipes: 0, components: 0, rendered: false }
@@ -170 +221,14 @@ export async function syncPipeLayer(viewer, network) {
-    return { pipes: pipes.length, components: components.length, rendered: true }
+    // Keep fallback entities until ALL model spans for that business object signal ready.
+    // The model adapter alone controls entity.show; unchanged geometries still stay untouched (ticket 33).
+    if (viewer.scene && viewer.scene.primitives && !viewer.isDestroyed()) {
+        modelAdapterPromise ||= import('./cesiumPipeModels.js')
+        const { createCesiumPipeModels } = await modelAdapterPromise
+        if (viewer.isDestroyed() || layerVersions.get(viewer) !== version) return { pipes: 0, components: 0, rendered: false }
+        let layer = modelLayers.get(viewer)
+        if (!layer) {
+            layer = createCesiumPipeModels(viewer, { source, onChange: onModelChange })
+            modelLayers.set(viewer, layer)
+        }
+        layer.sync({ pipes, components })
+    }
+    return { pipes: pipes.length, components: components.length, rendered: true, ...stats }
@@ -174,0 +239,3 @@ export async function clearPipeLayer(viewer) {
+    if (viewer) layerVersions.set(viewer, (layerVersions.get(viewer) || 0) + 1)
+    const layer = viewer && modelLayers.get(viewer)
+    if (layer) { layer.destroy(); modelLayers.delete(viewer) }
diff --git a/src/modules/cockpit/services/mapService.js b/src/modules/cockpit/services/mapService.js
index 2eaa74c..065ceac 100644
--- a/src/modules/cockpit/services/mapService.js
+++ b/src/modules/cockpit/services/mapService.js
@@ -1004,0 +1005 @@ export function unmountMap() {
+        if (record.pipeLayer) record.pipeLayer.clearPipeLayer(record.viewer)
@@ -2383,2 +2385,18 @@ export async function syncPipeLayerForPlan(plan) {
-    await engine.syncPipeLayer(instance.viewer, layer)
-    const host = instance.host
+    if (instance !== record || !record.viewer) return false
+    record.pipeLayer = engine
+    await engine.syncPipeLayer(record.viewer, layer, { onModelChange: (state) => {
+        if (instance !== record || !record.host) return
+        const host = record.host
+        if (host.dataset) {
+            host.dataset.mapPipeModelBatches = String(state.batches)
+            host.dataset.mapPipeModelInstances = String(state.instances)
+            host.dataset.mapPipeModelFallback = String(state.fallback)
+            host.dataset.mapPipeModelPending = String(state.pending)
+            host.dataset.mapPipeModelFailed = String(state.failed)
+            host.dataset.mapPipeModelKinds = JSON.stringify(state.byKind)
+            host.dataset.mapPipeVirtualDepth = '2'
+        }
+        host.dispatchEvent(new CustomEvent('cockpit-pipe-model-state', { detail: state }))
+    } })
+    if (instance !== record) return false
+    const host = record.host