diff --git a/src/pages/vimp/components/camera-tree.vue b/src/pages/vimp/components/camera-tree.vue
index 93ff399..d1e1be9 100644
--- a/src/pages/vimp/components/camera-tree.vue
+++ b/src/pages/vimp/components/camera-tree.vue
@@ -1,10 +1,13 @@
 <script setup lang="ts">
-import { NTabPane, NTabs, NTree, type TreeOverrideNodeClickBehavior, type TreeProps } from 'naive-ui';
+import { NIcon, NTabPane, NTabs, NTree, type TreeOverrideNodeClickBehavior, type TreeProps } from 'naive-ui';
 import { h, type CSSProperties } from 'vue';
 import { useCameraStore, useResourcePanelStore } from '../stores';
 import { storeToRefs } from 'pinia';
 import { useDeviceCenterQuery } from '../composables';
 import { isCameraNode, isCameraSiteNode, isCameraAreaNode } from '../types';
+import PtzCamera from './icon/ptz-camera.vue';
+import HemiPtzCamera from './icon/hemi-ptz-camera.vue';
+import BulletCamera from './icon/bullet-camera.vue';
 
 const { isLoading } = useDeviceCenterQuery();
 
@@ -77,6 +80,31 @@ const renderNodeLabel: TreeProps['renderLabel'] = ({ option }) => {
   return option.label;
 };
 
+const renderNodePrefix: TreeProps['renderPrefix'] = ({ option }) => {
+  if (!isCameraNode(option)) return null;
+
+  if (option.type === '004') return h(NIcon, () => h(PtzCamera));
+  if (option.type === '005') return h(NIcon, () => h(HemiPtzCamera));
+  if (option.type === '006') return h(NIcon, () => h(BulletCamera));
+
+  return null;
+};
+
+const renderNodeSuffix: TreeProps['renderSuffix'] = ({ option }) => {
+  if (isCameraSiteNode(option)) {
+    const { online, offline, total } = option.stats;
+    return `(${online}/${offline}/${total})`;
+  }
+
+  if (isCameraAreaNode(option)) {
+    const { online, offline, total } = option.stats;
+    const suffixStyle: CSSProperties = option.areaLevel === 1 ? { marginRight: '8px', opacity: 0.6 } : { marginRight: '16px', opacity: 0.4 };
+    return h('div', { style: suffixStyle }, `(${online}/${offline}/${total})`);
+  }
+
+  return null;
+};
+
 const resourcePanelStore = useResourcePanelStore();
 const { searchPattern } = storeToRefs(resourcePanelStore);
 
@@ -98,6 +126,8 @@ const searchFilter: TreeProps['filter'] = (pattern, node) => {
       virtual-scroll
       style="height: 100%"
       :render-label="renderNodeLabel"
+      :render-prefix="renderNodePrefix"
+      :render-suffix="renderNodeSuffix"
       :override-default-node-click-behavior="overrideNodeClickBehavior"
       :default-expand-all="searchPattern.trim().length > 0"
       :show-irrelevant-nodes="false"
@@ -116,6 +146,8 @@ const searchFilter: TreeProps['filter'] = (pattern, node) => {
           virtual-scroll
           style="height: 100%"
           :render-label="renderNodeLabel"
+          :render-prefix="renderNodePrefix"
+          :render-suffix="renderNodeSuffix"
           :override-default-node-click-behavior="overrideNodeClickBehavior"
           :default-expand-all="false"
           :show-irrelevant-nodes="false"
diff --git a/src/pages/vimp/composables/query/use-device-center-query.ts b/src/pages/vimp/composables/query/use-device-center-query.ts
index 0b27ead..eea5dc9 100644
--- a/src/pages/vimp/composables/query/use-device-center-query.ts
+++ b/src/pages/vimp/composables/query/use-device-center-query.ts
@@ -2,7 +2,7 @@ import { useQuery } from '@tanstack/vue-query';
 import { computed } from 'vue';
 import type { AxiosRequestConfig } from 'axios';
 import axios from 'axios';
-import type { CodeArea, CodeLines, CodeSites } from '../../types';
+import { compileCodeAreas, type CodeArea, type CodeLines, type CodeSites, type CompiledCodeAreaMaps, type CompiledCodeAreas } from '../../types';
 import { useCameraStore, useAlarmStore } from '../../stores';
 import { catalogAllDeviceApi, catalogChannelApi, type VimpChannel, type VimpStation } from '../../apis';
 
@@ -39,12 +39,20 @@ export const useDeviceCenterQuery = () => {
     refetchInterval: 10 * 1000,
     refetchOnWindowFocus: false,
     queryFn: async ({ signal }) => {
+      // 请求所有码表
       const codeLines = (await axios.get<CodeLines>('/cdn/vimp/codes/codeLines.json', config)).data;
       const codeSites = (await axios.get<CodeSites>('/cdn/vimp/codes/codeStations.json', config)).data;
       const codeStationAreas = (await axios.get<CodeArea[]>('/cdn/vimp/codes/codeStationAreas.json', config)).data;
       const codeParkingAreas = (await axios.get<CodeArea[]>('/cdn/vimp/codes/codeParkingAreas.json', config)).data;
       const codeOccAreas = (await axios.get<CodeArea[]>('/cdn/vimp/codes/codeOccAreas.json', config)).data;
       const codeTrainAreas = buildTrainAreas();
+      // 预编译区域码表索引 (性能优化)
+      const compiledCodeAreas = compileCodeAreas({
+        codeStationAreas,
+        codeParkingAreas,
+        codeOccAreas,
+        codeTrainAreas,
+      });
 
       const sitesFromApi = await catalogAllDeviceApi({ signal });
 
@@ -60,7 +68,7 @@ export const useDeviceCenterQuery = () => {
 
       for (const siteFromApi of sitesFromApi ?? []) {
         const channels = await catalogChannelApi(siteFromApi.code, { signal });
-        if (!channels || channels.length === 0) continue;
+        if (!channels) continue;
 
         channels.forEach((channel) => {
           const siteCode = channel.code.substring(0, 6);
@@ -97,21 +105,12 @@ export const useDeviceCenterQuery = () => {
         });
       }
 
-      console.log(new Date().toLocaleString());
-      console.log(cameraSites);
-      console.log(siteCodeToCamerasMap);
-      console.log(alarmSites);
-      console.log(siteCodeToAlarmsMap);
-
       cameraStore.buildLineTabPanes({
         sites: cameraSites,
         siteCodeToCamerasMap: siteCodeToCamerasMap,
         codeLines,
         codeSites,
-        codeStationAreas,
-        codeParkingAreas,
-        codeOccAreas,
-        codeTrainAreas,
+        compiledCodeAreas,
       });
 
       alarmStore.buildLineTabPanes({
diff --git a/src/pages/vimp/stores/camera.ts b/src/pages/vimp/stores/camera.ts
index ec504f2..a847433 100644
--- a/src/pages/vimp/stores/camera.ts
+++ b/src/pages/vimp/stores/camera.ts
@@ -1,86 +1,24 @@
 import { defineStore } from 'pinia';
 import type { VimpChannel, VimpStation } from '../apis';
-import { h, shallowRef } from 'vue';
-import type { CameraMainAreaNodeOption, CameraNodeOption, CodeArea, CodeLines, CodeSites, CameraLineTabPane, CameraSiteNodeOption, CameraSubAreaNodeOption } from '../types';
-import { NIcon } from 'naive-ui';
-import BulletCamera from '../components/icon/bullet-camera.vue';
-import PtzCamera from '../components/icon/ptz-camera.vue';
-import HemiPtzCamera from '../components/icon/hemi-ptz-camera.vue';
+import { shallowRef } from 'vue';
+import type { CameraMainAreaNodeOption, CameraNodeOption, CodeLines, CodeSites, CameraLineTabPane, CameraSiteNodeOption, CameraSubAreaNodeOption, CompiledCodeAreas } from '../types';
 
 interface BuildLineTabPanesParams {
   sites: VimpStation[];
   siteCodeToCamerasMap: Map<string, VimpChannel[]>;
   codeLines: CodeLines;
   codeSites: CodeSites;
-  codeStationAreas: CodeArea[];
-  codeParkingAreas: CodeArea[];
-  codeOccAreas: CodeArea[];
-  codeTrainAreas: CodeArea[];
+  compiledCodeAreas: CompiledCodeAreas;
 }
 
 const buildMainAreaNodeKey = (siteCode: string, mainAreaCode: string) => `${siteCode}${mainAreaCode}`;
 const buildSubAreaNodeKey = (siteCode: string, areaCode: string) => `${siteCode}${areaCode}`;
-const renderCameraNodePrefix = (cameraType: string) => {
-  if (cameraType === '004') return h(NIcon, () => h(PtzCamera));
-  if (cameraType === '005') return h(NIcon, () => h(HemiPtzCamera));
-  if (cameraType === '006') return h(NIcon, () => h(BulletCamera));
-  return undefined;
-};
 
 export const useCameraStore = defineStore('vimp-camera-store', () => {
   const lineTabPanes = shallowRef<CameraLineTabPane[]>([]);
 
   const buildLineTabPanes = (params: BuildLineTabPanesParams) => {
-    const { sites, siteCodeToCamerasMap, codeLines, codeSites, codeStationAreas, codeParkingAreas, codeOccAreas, codeTrainAreas } = params;
-
-    const findMainArea = (siteType: CodeSites[string]['type'] | undefined, mainAreaCode: string) => {
-      if (siteType === 'station') {
-        return codeStationAreas.find((area) => area.code === mainAreaCode);
-      }
-      if (siteType === 'parking') {
-        return codeParkingAreas.find((area) => area.code === mainAreaCode);
-      }
-      if (siteType === 'occ') {
-        return codeOccAreas.find((area) => area.code === mainAreaCode);
-      }
-      if (siteType === 'train') {
-        return codeTrainAreas.find((area) => area.code === mainAreaCode);
-      }
-      return undefined;
-    };
-    const findSubArea = (siteType: CodeSites[string]['type'] | undefined, mainAreaCode: string, areaCode: string) => {
-      if (siteType === 'station') {
-        return codeStationAreas.find((area) => area.code === mainAreaCode)?.subs.find((subArea) => subArea.code === areaCode);
-      }
-      if (siteType === 'parking') {
-        return codeParkingAreas.find((area) => area.code === mainAreaCode)?.subs.find((subArea) => subArea.code === areaCode);
-      }
-      if (siteType === 'occ') {
-        return codeOccAreas.find((area) => area.code === mainAreaCode)?.subs.find((subArea) => subArea.code === areaCode);
-      }
-      if (siteType === 'train') {
-        return codeTrainAreas.find((area) => area.code === mainAreaCode)?.subs.find((subArea) => subArea.code === areaCode);
-      }
-      return undefined;
-    };
-    const renderCascadedSuffix = (siteNode: CameraSiteNodeOption) => {
-      siteNode.suffix = () => {
-        const { online, offline, total } = siteNode.stats;
-        return `(${online}/${offline}/${total})`;
-      };
-      siteNode.children?.forEach((areaNode) => {
-        areaNode.suffix = () => {
-          const { online, offline, total } = areaNode.stats;
-          return h('div', { style: { marginRight: '8px', opacity: 0.6 } }, `(${online}/${offline}/${total})`);
-        };
-        areaNode.children?.forEach((subAreaNode) => {
-          subAreaNode.suffix = () => {
-            const { online, offline, total } = subAreaNode.stats;
-            return h('div', { style: { marginRight: '16px', opacity: 0.4 } }, `(${online}/${offline}/${total})`);
-          };
-        });
-      });
-    };
+    const { sites, siteCodeToCamerasMap, codeLines, codeSites, compiledCodeAreas } = params;
 
     const result: CameraLineTabPane[] = [];
 
@@ -89,7 +27,7 @@ export const useCameraStore = defineStore('vimp-camera-store', () => {
 
     // 遍历所有站点
     for (const site of sites) {
-      // 2. 站点节点 siteNode 不需要建立索引
+      // 2. 站点节点 siteNode 只在当前轮次中顺序创建，不需要建立索引
 
       const lineCode = site.code.substring(0, 3);
       const lineName = codeLines[lineCode]?.name ?? '';
@@ -102,8 +40,13 @@ export const useCameraStore = defineStore('vimp-camera-store', () => {
       }
 
       const siteCode = site.code;
-      const siteName = codeSites[siteCode]?.name;
-      if (!siteName) continue;
+      const siteMeta = codeSites[siteCode];
+      if (!siteMeta) continue;
+      const siteName = siteMeta.name;
+      const siteType = siteMeta.type;
+
+      const compiledCodeAreaMaps = compiledCodeAreas[siteType];
+      const mainAreaCodeLength = siteType === 'train' ? 3 : 2;
 
       // 构造站点节点
       const siteNode: CameraSiteNodeOption = {
@@ -132,16 +75,14 @@ export const useCameraStore = defineStore('vimp-camera-store', () => {
       for (const camera of cameras) {
         // 计算相关编码
         const { code: cameraGbCode, name: cameraName } = camera;
-        const cameraSiteCode = cameraGbCode.substring(0, 6);
-        const cameraSiteType = codeSites[cameraSiteCode]?.type;
         const cameraAreaCode = cameraGbCode.substring(6, 11);
-        const cameraMainAreaCode = cameraAreaCode.slice(0, cameraSiteType === 'train' ? 3 : 2);
+        const cameraMainAreaCode = cameraAreaCode.slice(0, mainAreaCodeLength);
 
         // 查找1级区域，如果未找到则跳过该摄像机
-        const mainArea = findMainArea(cameraSiteType, cameraMainAreaCode);
+        const mainArea = compiledCodeAreaMaps.mainAreaMap.get(cameraMainAreaCode);
         if (!mainArea) continue;
         // 尝试从索引中获取1级区域节点，若不存在则创建
-        const mainAreaNodeKey = buildMainAreaNodeKey(cameraSiteCode, cameraMainAreaCode);
+        const mainAreaNodeKey = buildMainAreaNodeKey(siteCode, cameraMainAreaCode);
         let mainAreaNode = mainAreaNodeMap.get(mainAreaNodeKey);
         if (!mainAreaNode) {
           mainAreaNode = {
@@ -150,16 +91,17 @@ export const useCameraStore = defineStore('vimp-camera-store', () => {
             children: [],
             stats: { online: 0, offline: 0, total: 0 },
             site: site,
+            areaLevel: 1,
           };
           mainAreaNodeMap.set(mainAreaNodeKey, mainAreaNode);
           siteNode.children?.push(mainAreaNode);
         }
 
         // 查找2级区域，如果未找到则跳过该摄像机
-        const subArea = findSubArea(cameraSiteType, cameraMainAreaCode, cameraAreaCode);
+        const subArea = compiledCodeAreaMaps.subAreaMap.get(cameraAreaCode);
         if (!subArea) continue;
         // 尝试从索引中获取2级区域节点，若不存在则创建
-        const subAreaNodeKey = buildSubAreaNodeKey(cameraSiteCode, cameraAreaCode);
+        const subAreaNodeKey = buildSubAreaNodeKey(siteCode, cameraAreaCode);
         let subAreaNode = subAreaNodeMap.get(subAreaNodeKey);
         if (!subAreaNode) {
           subAreaNode = {
@@ -168,6 +110,7 @@ export const useCameraStore = defineStore('vimp-camera-store', () => {
             children: [],
             stats: { online: 0, offline: 0, total: 0 },
             site: site,
+            areaLevel: 2,
           };
           subAreaNodeMap.set(subAreaNodeKey, subAreaNode);
           mainAreaNode.children?.push(subAreaNode);
@@ -181,14 +124,13 @@ export const useCameraStore = defineStore('vimp-camera-store', () => {
         }
         if (cameraGbCodeSet.has(cameraGbCode)) continue;
         cameraGbCodeSet.add(cameraGbCode);
-        const cameraType = camera.code.substring(11, 14);
+        const cameraType = cameraGbCode.substring(11, 14);
         const cameraNode: CameraNodeOption = {
           key: cameraGbCode,
           label: cameraName,
           type: cameraType,
           camera: camera,
           site: site,
-          prefix: () => renderCameraNodePrefix(cameraType),
         };
         subAreaNode.children?.push(cameraNode);
 
@@ -200,15 +142,12 @@ export const useCameraStore = defineStore('vimp-camera-store', () => {
           siteNode.stats.online++;
           mainAreaNode.stats.online++;
           subAreaNode.stats.online++;
-        }
-        if (camera.status === 0) {
+        } else if (camera.status === 0) {
           siteNode.stats.offline++;
           mainAreaNode.stats.offline++;
           subAreaNode.stats.offline++;
         }
       }
-
-      renderCascadedSuffix(siteNode);
     }
 
     lineTabPanes.value = result;
diff --git a/src/pages/vimp/types/device-tree.ts b/src/pages/vimp/types/device-tree.ts
index 97129d3..2984d26 100644
--- a/src/pages/vimp/types/device-tree.ts
+++ b/src/pages/vimp/types/device-tree.ts
@@ -6,6 +6,45 @@ export type CodeLines = Record<string, { name: string; color: string }>;
 export type CodeSites = Record<string, { name: string; type: SiteType }>;
 export type CodeArea = { code: string; name: string; subs: { code: string; name: string }[] };
 
+export type CompiledCodeAreaMaps = {
+  mainAreaMap: Map<string, CodeArea>;
+  subAreaMap: Map<string, CodeArea['subs'][number]>;
+};
+
+export type CompiledCodeAreas = Record<SiteType, CompiledCodeAreaMaps>;
+
+interface CompileCodeAreasParams {
+  codeStationAreas: CodeArea[];
+  codeParkingAreas: CodeArea[];
+  codeOccAreas: CodeArea[];
+  codeTrainAreas: CodeArea[];
+}
+
+const compileCodeAreaMaps = (areas: CodeArea[]): CompiledCodeAreaMaps => {
+  const mainAreaMap = new Map<string, CodeArea>();
+  const subAreaMap = new Map<string, CodeArea['subs'][number]>();
+  for (const area of areas) {
+    mainAreaMap.set(area.code, area);
+    for (const subArea of area.subs) {
+      subAreaMap.set(subArea.code, subArea);
+    }
+  }
+  return {
+    mainAreaMap,
+    subAreaMap,
+  };
+};
+
+export const compileCodeAreas = (parmas: CompileCodeAreasParams): CompiledCodeAreas => {
+  const { codeStationAreas, codeParkingAreas, codeOccAreas, codeTrainAreas } = parmas;
+  return {
+    station: compileCodeAreaMaps(codeStationAreas),
+    parking: compileCodeAreaMaps(codeParkingAreas),
+    occ: compileCodeAreaMaps(codeOccAreas),
+    train: compileCodeAreaMaps(codeTrainAreas),
+  };
+};
+
 export interface CountStats {
   online: number;
   offline: number;
@@ -25,12 +64,14 @@ export interface CameraSubAreaNodeOption extends TreeOption {
   children?: CameraNodeOption[];
   stats: CountStats;
   site: VimpStation;
+  areaLevel: 2;
 }
 
 export interface CameraMainAreaNodeOption extends TreeOption {
   children?: CameraSubAreaNodeOption[];
   stats: CountStats;
   site: VimpStation;
+  areaLevel: 1;
 }
 
 export interface CameraSiteNodeOption extends TreeOption {