diff --git a/src/auto-imports.d.ts b/src/auto-imports.d.ts
index 638cbbf..66eba91 100644
--- a/src/auto-imports.d.ts
+++ b/src/auto-imports.d.ts
@@ -184,6 +184,7 @@ declare global {
   const useCssVar: typeof import('@vueuse/core')['useCssVar']
   const useCssVars: typeof import('vue')['useCssVars']
   const useCurrentElement: typeof import('@vueuse/core')['useCurrentElement']
+  const useCurrentProject: typeof import('./composables/useCurrentProject')['useCurrentProject']
   const useCycleList: typeof import('@vueuse/core')['useCycleList']
   const useDark: typeof import('@vueuse/core')['useDark']
   const useDateFormat: typeof import('@vueuse/core')['useDateFormat']
@@ -531,6 +532,7 @@ declare module 'vue' {
     readonly useCssVar: UnwrapRef<typeof import('@vueuse/core')['useCssVar']>
     readonly useCssVars: UnwrapRef<typeof import('vue')['useCssVars']>
     readonly useCurrentElement: UnwrapRef<typeof import('@vueuse/core')['useCurrentElement']>
+    readonly useCurrentProject: UnwrapRef<typeof import('./composables/useCurrentProject')['useCurrentProject']>
     readonly useCycleList: UnwrapRef<typeof import('@vueuse/core')['useCycleList']>
     readonly useDark: UnwrapRef<typeof import('@vueuse/core')['useDark']>
     readonly useDateFormat: UnwrapRef<typeof import('@vueuse/core')['useDateFormat']>
diff --git a/src/components/home/construction.vue b/src/components/home/construction.vue
index 8f9e4e0..e9d2c53 100644
--- a/src/components/home/construction.vue
+++ b/src/components/home/construction.vue
@@ -1,3 +1,9 @@
+<script setup lang="ts">
+import { useCurrentProject } from '@/composables/useCurrentProject'
+
+const { hasCurrentProject, currentProject } = useCurrentProject()
+</script>
+
 <template>
   <view class="card">
     <view class="card-header">
@@ -10,10 +16,10 @@
         <view class="icon-placeholder" />
         <view class="info">
           <text class="segment">
-            K12+300 — K125+800
+            {{ hasCurrentProject ? (currentProject?.stake_range || '--') : '暂无施工段' }}
           </text>
           <text class="requirement">
-            压实遍数要求:≥6遍
+            压实遍数要求:{{ hasCurrentProject ? '≥6遍' : '--' }}
           </text>
         </view>
       </view>
diff --git a/src/components/home/homeNav.vue b/src/components/home/homeNav.vue
index 3a64a5d..15430d4 100644
--- a/src/components/home/homeNav.vue
+++ b/src/components/home/homeNav.vue
@@ -1,12 +1,7 @@
 <script setup lang="ts">
-import storage from '@/utils/storage'
+import { useCurrentProject } from '@/composables/useCurrentProject'
 
-const project = ref(storage.get('current_project'))
-
-// 页面显示时刷新数据（从设置页返回时）
-onShow(() => {
-  project.value = storage.get('current_project')
-})
+const { currentProject } = useCurrentProject()
 
 function onIconClick(name: string) {
   if (name === '通知') {
@@ -36,10 +31,10 @@ function onIconClick(name: string) {
       <image class="nav-logo" src="/static/logo.png" mode="aspectFit" @tap="onIconClick('logo')" />
       <view class="nav-info">
         <text class="nav-title">
-          {{ project?.project_name || '--' }}
+          {{ currentProject?.project_name || '--' }}
         </text>
         <text class="nav-subtitle">
-          {{ project?.stake_range || '--' }}
+          {{ currentProject?.stake_range || '--' }}
         </text>
       </view>
     </view>
diff --git a/src/components/home/overview.vue b/src/components/home/overview.vue
index 31b3b06..40fd839 100644
--- a/src/components/home/overview.vue
+++ b/src/components/home/overview.vue
@@ -1,24 +1,44 @@
 <script setup lang="ts">
 import { computed, onMounted } from 'vue'
+import { useCurrentProject } from '@/composables/useCurrentProject'
 import { useDbStore } from '@/store/modules/db'
 
 const db = useDbStore()
+const { hasCurrentProject } = useCurrentProject()
 
 const now = new Date()
 const dateStr = `${now.getFullYear()}年${now.getMonth() + 1}月${now.getDate()}日`
 
-const totalCompactionArea = computed(() =>
-  (db.work_record || []).reduce((sum, item) => sum + (item.compaction_area ?? 0), 0),
-)
+const totalCompactionArea = computed(() => {
+  if (!hasCurrentProject.value)
+    return null
+  return (db.work_record || []).reduce((sum, item) => sum + (item.compaction_area ?? 0), 0)
+})
 
-const totalDuration = computed(() =>
-  (db.work_record || []).reduce((sum, item) => sum + (item.duration ?? 0), 0),
-)
+const totalDuration = computed(() => {
+  if (!hasCurrentProject.value)
+    return null
+  return (db.work_record || []).reduce((sum, item) => sum + (item.duration ?? 0), 0)
+})
 
-function formatNumber(value: number) {
+const onlineCount = computed(() => {
+  if (!hasCurrentProject.value)
+    return null
+  return 1
+})
+
+function formatNumber(value: number | null) {
+  if (value == null)
+    return '--'
   return Number.isInteger(value) ? String(value) : value.toFixed(1)
 }
 
+function formatCount(value: number | null) {
+  if (value == null)
+    return '--'
+  return `${value}台`
+}
+
 onMounted(async () => {
   if (!db.work_record?.length)
     await db.loadAll()
@@ -41,7 +61,7 @@ onMounted(async () => {
           实时作业状态(台)
         </text>
         <text class="stat-value">
-          1台
+          {{ formatCount(onlineCount) }}
         </text>
       </view>
       <view class="stat-item">
diff --git a/src/components/home/progress.vue b/src/components/home/progress.vue
index ce98b99..2e64830 100644
--- a/src/components/home/progress.vue
+++ b/src/components/home/progress.vue
@@ -1,31 +1,28 @@
 <script setup lang="ts">
-import { onShow } from '@dcloudio/uni-app'
-import { computed, onMounted, ref } from 'vue'
+import { computed, onMounted } from 'vue'
+import { useCurrentProject } from '@/composables/useCurrentProject'
 import { calcUncompactedArea } from '@/service/project'
 import { useDbStore } from '@/store/modules/db'
-import storage from '@/utils/storage'
 
 const db = useDbStore()
-const currentProjectId = ref<number | null>(storage.get('current_project')?.id ?? null)
+const { currentProject: storedProject, hasCurrentProject } = useCurrentProject()
 
 const currentProject = computed(() => {
-  const list = db.project || []
-  if (!list.length)
+  if (!hasCurrentProject.value)
     return null
 
-  const stored = currentProjectId.value != null
-    ? list.find(item => item.id === currentProjectId.value)
-    : null
-  if (stored)
-    return stored
+  const list = db.project || []
+  const storedId = storedProject.value?.id
+  if (storedId == null)
+    return null
 
-  return list.find(item => item.status === 2) || list[0]
+  return list.find(item => item.id === storedId) || null
 })
 
 const progressPercent = computed(() => {
   const project = currentProject.value
   if (!project)
-    return 0
+    return null
   if (project.progress)
     return clampPercent(project.progress)
 
@@ -35,16 +32,28 @@ const progressPercent = computed(() => {
   return clampPercent(((project.total_compaction_area ?? 0) / total) * 100)
 })
 
-const qualifiedRate = computed(() => currentProject.value?.qualified_rate ?? 0)
+const qualifiedRate = computed(() => {
+  if (!currentProject.value)
+    return null
+  return currentProject.value.qualified_rate ?? 0
+})
 
-const totalArea = computed(() => currentProject.value?.total_area ?? 0)
+const totalArea = computed(() => {
+  if (!currentProject.value)
+    return null
+  return currentProject.value.total_area ?? 0
+})
 
-const compactedArea = computed(() => currentProject.value?.total_compaction_area ?? 0)
+const compactedArea = computed(() => {
+  if (!currentProject.value)
+    return null
+  return currentProject.value.total_compaction_area ?? 0
+})
 
 const uncompactedArea = computed(() => {
   const project = currentProject.value
   if (!project)
-    return 0
+    return null
   if (project.uncompacted_area != null)
     return Math.max(0, project.uncompacted_area)
   return calcUncompactedArea(project.total_area, project.total_compaction_area)
@@ -54,24 +63,30 @@ function clampPercent(value: number) {
   return Math.min(100, Math.max(0, Number(value.toFixed(1))))
 }
 
-function formatArea(value: number) {
+function formatArea(value: number | null) {
+  if (value == null)
+    return '--'
   const text = Number.isInteger(value) ? String(value) : String(value)
   return `${text}m²`
 }
 
-function formatRate(value: number) {
+function formatRate(value: number | null) {
+  if (value == null)
+    return '--'
   const text = Number.isInteger(value) ? String(value) : value.toFixed(2)
   return `${text}%`
 }
 
+function formatPercent(value: number | null) {
+  if (value == null)
+    return '--'
+  return `${value}%`
+}
+
 onMounted(async () => {
   if (!db.project?.length)
     await db.loadAll()
 })
-
-onShow(() => {
-  currentProjectId.value = storage.get('current_project')?.id ?? null
-})
 </script>
 
 <template>
@@ -81,22 +96,19 @@ onShow(() => {
         项目作业进度
       </text>
       <text class="card-sub">
-        {{ currentProject?.stake_range || currentProject?.project_name || '暂无项目' }}
+        {{ currentProject?.stake_range || currentProject?.project_name || '暂无施工段' }}
       </text>
     </view>
     <view class="card-body">
-      <view v-if="!currentProject" class="empty-tip">
-        暂无项目数据
-      </view>
-      <view v-else class="progress-content">
+      <view class="progress-content">
         <view class="progress-circle">
-          <wd-circle :model-value="progressPercent" :size="120">
+          <wd-circle :model-value="progressPercent ?? 0" :size="120">
             <view class="progress-circle-text">
               <text class="progress-percent">
-                {{ progressPercent }}%
+                {{ hasCurrentProject ? `${progressPercent}%` : '0%' }}
               </text>
               <text class="progress-label">
-                已完成
+                {{ hasCurrentProject ? '已完成' : '未开始' }}
               </text>
             </view>
           </wd-circle>
@@ -111,7 +123,7 @@ onShow(() => {
                 {{ formatRate(qualifiedRate) }}
               </text>
             </view>
-            <wd-progress :percentage="clampPercent(qualifiedRate)" hide-text />
+            <wd-progress :percentage="clampPercent(qualifiedRate ?? 0)" hide-text />
           </view>
           <view class="progress-item">
             <view class="progress-row">
@@ -119,10 +131,10 @@ onShow(() => {
                 完成进度
               </text>
               <text class="progress-value">
-                {{ progressPercent }}%
+                {{ formatPercent(progressPercent) }}
               </text>
             </view>
-            <wd-progress :percentage="progressPercent" hide-text />
+            <wd-progress :percentage="progressPercent ?? 0" hide-text />
           </view>
           <view class="progress-item progress-item-inline">
             <text class="progress-name">
@@ -187,13 +199,6 @@ onShow(() => {
   padding: 12px 16px;
 }
 
-.empty-tip {
-  font-size: 14px;
-  color: #999999;
-  text-align: center;
-  padding: 16px 0;
-}
-
 .progress-content {
   display: flex;
   align-items: center;
diff --git a/src/components/home/projectList.vue b/src/components/home/projectList.vue
index fa65972..0e5a741 100644
--- a/src/components/home/projectList.vue
+++ b/src/components/home/projectList.vue
@@ -1,12 +1,18 @@
 <script setup lang="ts">
 import type { Project } from '@/service/project'
-import { onMounted } from 'vue'
+import { computed, onMounted } from 'vue'
+import { useCurrentProject } from '@/composables/useCurrentProject'
 import { useDbStore } from '@/store/modules/db'
 
 const db = useDbStore()
+const { hasCurrentProject } = useCurrentProject()
 
 /** 首页只展示最近几条 */
-const list = computed(() => (db.project || []).slice(0, 2))
+const list = computed(() => {
+  if (!hasCurrentProject.value)
+    return []
+  return (db.project || []).slice(0, 2)
+})
 
 onMounted(async () => {
   if (!db.project?.length)
@@ -39,7 +45,10 @@ function goToDetail(item: Project) {
       </wd-button>
     </view>
     <view class="card-body">
-      <view v-if="!list.length" class="empty-tip">
+      <view v-if="!hasCurrentProject" class="empty-tip">
+        --
+      </view>
+      <view v-else-if="!list.length" class="empty-tip">
         暂无项目
       </view>
       <home-list
@@ -79,7 +88,7 @@ function goToDetail(item: Project) {
 }
 
 .empty-tip {
-  font-size: 14px;
+  font-size: 18px;
   color: #999999;
   text-align: center;
   padding: 16px 0;
diff --git a/src/components/home/status.vue b/src/components/home/status.vue
index 400b34d..80b2dcd 100644
--- a/src/components/home/status.vue
+++ b/src/components/home/status.vue
@@ -1,4 +1,8 @@
 <script setup lang="ts">
+import { useCurrentProject } from '@/composables/useCurrentProject'
+
+const { hasCurrentProject } = useCurrentProject()
+
 function goToWork() {
   uni.switchTab({
     url: '/pages/work/index',
@@ -14,59 +18,64 @@ function goToWork() {
       </text>
     </view>
     <view class="card-body">
-      <view class="status-info">
-        <view class="avatar" />
-        <view class="info">
-          <text class="name">
-            徐工XS65H #01
-          </text>
-          <text class="sub">
-            设备ID:G1XG2584-B01
-          </text>
-        </view>
-        <view class="status-tag">
-          作业中
-        </view>
+      <view v-if="!hasCurrentProject" class="empty-tip">
+        --
       </view>
-      <view class="status-params">
-        <view class="param">
-          <text class="param-label">
-            振动频率
-          </text>
-          <text class="param-value">
-            8939HZ
-          </text>
+      <template v-else>
+        <view class="status-info">
+          <view class="avatar" />
+          <view class="info">
+            <text class="name">
+              徐工XS65H #01
+            </text>
+            <text class="sub">
+              设备ID:G1XG2584-B01
+            </text>
+          </view>
+          <view class="status-tag">
+            作业中
+          </view>
         </view>
-        <view class="param">
-          <text class="param-label">
-            振幅
-          </text>
-          <text class="param-value">
-            8939mm
-          </text>
+        <view class="status-params">
+          <view class="param">
+            <text class="param-label">
+              振动频率
+            </text>
+            <text class="param-value">
+              8939HZ
+            </text>
+          </view>
+          <view class="param">
+            <text class="param-label">
+              振幅
+            </text>
+            <text class="param-value">
+              8939mm
+            </text>
+          </view>
+          <view class="param">
+            <text class="param-label">
+              行驶速度
+            </text>
+            <text class="param-value">
+              3km/h
+            </text>
+          </view>
+          <view class="param">
+            <text class="param-label">
+              钢轮温度
+            </text>
+            <text class="param-value">
+              8939°C
+            </text>
+          </view>
         </view>
-        <view class="param">
-          <text class="param-label">
-            行驶速度
-          </text>
-          <text class="param-value">
-            3km/h
-          </text>
+        <view class="card-footer">
+          <wd-button size="large" round @tap="goToWork">
+            进入作业监控
+          </wd-button>
         </view>
-        <view class="param">
-          <text class="param-label">
-            钢轮温度
-          </text>
-          <text class="param-value">
-            8939°C
-          </text>
-        </view>
-      </view>
-      <view class="card-footer">
-        <wd-button size="large" round @tap="goToWork">
-          进入作业监控
-        </wd-button>
-      </view>
+      </template>
     </view>
   </view>
 </template>
@@ -97,6 +106,13 @@ function goToWork() {
   padding: 12px 16px;
 }
 
+.empty-tip {
+  font-size: 18px;
+  color: #999999;
+  text-align: center;
+  padding: 24px 0;
+}
+
 .status-info {
   display: flex;
   align-items: center;
diff --git a/src/components/home/warning.vue b/src/components/home/warning.vue
index 67b7e16..b70ef78 100644
--- a/src/components/home/warning.vue
+++ b/src/components/home/warning.vue
@@ -1,12 +1,21 @@
 <script setup lang="ts">
 import type { WarningRecord } from '@/service/warningRecord'
-import { onMounted } from 'vue'
+import { computed, onMounted } from 'vue'
+import { useCurrentProject } from '@/composables/useCurrentProject'
 import { useDbStore } from '@/store/modules/db'
 
 const db = useDbStore()
+const { hasCurrentProject, currentProject } = useCurrentProject()
 
-/** 首页只展示最近几条 */
-const list = computed(() => (db.warning_record || []).slice(0, 3))
+/** 首页只展示当前项目最近几条 */
+const list = computed(() => {
+  if (!hasCurrentProject.value)
+    return []
+  const projectId = currentProject.value?.id
+  return (db.warning_record || [])
+    .filter(item => projectId == null || item.project_id === projectId)
+    .slice(0, 3)
+})
 
 onMounted(async () => {
   if (!db.warning_record?.length)
@@ -39,7 +48,10 @@ function goToDetail(item: WarningRecord) {
       </wd-button>
     </view>
     <view class="card-body">
-      <view v-if="!list.length" class="empty-tip">
+      <view v-if="!hasCurrentProject" class="empty-tip">
+        --
+      </view>
+      <view v-else-if="!list.length" class="empty-tip">
         暂无异常警告
       </view>
       <home-warning_list
@@ -79,7 +91,7 @@ function goToDetail(item: WarningRecord) {
 }
 
 .empty-tip {
-  font-size: 14px;
+  font-size: 18px;
   color: #999999;
   text-align: center;
   padding: 16px 0;
diff --git a/src/components/work/dashboard.vue b/src/components/work/dashboard.vue
index d7dc764..5acced0 100644
--- a/src/components/work/dashboard.vue
+++ b/src/components/work/dashboard.vue
@@ -1,23 +1,40 @@
 <script setup lang="ts">
 import { computed } from 'vue'
+import { useCurrentProject } from '@/composables/useCurrentProject'
+
+const { hasCurrentProject } = useCurrentProject()
 
 // 压实度 (假数据，后续替换)
-const compactionValue = 25
+const compactionValue = computed(() => (hasCurrentProject.value ? 25 : 0))
+const compactionText = computed(() => (hasCurrentProject.value ? `${compactionValue.value}%` : '--'))
 
 // 车速 (假数据，范围 0-12，中间值 6)
-const speedValue = 4.2
+const speedValue = computed(() => (hasCurrentProject.value ? 4.2 : 0))
+const speedText = computed(() => (hasCurrentProject.value ? `${speedValue.value}KM/H` : '--'))
 const speedMax = 12
 
 // 指针旋转角度：0km/h → 225°（左下），12km/h → -45°（右下），中间90°（正上）
-const needleRotation = computed(() => 225 - (speedValue / speedMax) * 270)
+const needleRotation = computed(() => 225 - (speedValue.value / speedMax) * 270)
 
-// 今日作业概览数据 (假数据)
-const overviewData = [
-  { label: '作业时长', value: '8h' },
-  { label: '压实面积', value: '28.5m²' },
-  { label: '碾压遍数', value: '10遍' },
-  { label: '异常次数', value: '0' },
-]
+const frequencyText = computed(() => (hasCurrentProject.value ? '8939HZ' : '--'))
+
+// 今日作业概览数据
+const overviewData = computed(() => {
+  if (!hasCurrentProject.value) {
+    return [
+      { label: '作业时长', value: '--' },
+      { label: '压实面积', value: '--' },
+      { label: '碾压遍数', value: '--' },
+      { label: '异常次数', value: '--' },
+    ]
+  }
+  return [
+    { label: '作业时长', value: '8h' },
+    { label: '压实面积', value: '28.5m²' },
+    { label: '碾压遍数', value: '10遍' },
+    { label: '异常次数', value: '0' },
+  ]
+})
 </script>
 
 <template>
@@ -43,7 +60,7 @@ const overviewData = [
           </view>
           <!-- 圆环进度（使用 wotui 的 wd-circle 组件） -->
           <view class="ring-wrap">
-            <wd-circle v-model="compactionValue" :text="`${compactionValue}%`" />
+            <wd-circle :model-value="compactionValue" :text="compactionText" />
           </view>
         </view>
 
@@ -58,7 +75,7 @@ const overviewData = [
             </text>
           </view>
           <text class="gauge-value">
-            {{ speedValue }}KM/H
+            {{ speedText }}
           </text>
         </view>
       </view>
@@ -71,7 +88,7 @@ const overviewData = [
             振动频率
           </text>
           <text class="freq-value">
-            8939HZ
+            {{ frequencyText }}
           </text>
         </view>
 
@@ -80,7 +97,7 @@ const overviewData = [
             振动频率
           </text>
           <text class="freq-value">
-            8939HZ
+            {{ frequencyText }}
           </text>
         </view>
 
diff --git a/src/components/work/deviceControl.vue b/src/components/work/deviceControl.vue
index d83d487..934d9ba 100644
--- a/src/components/work/deviceControl.vue
+++ b/src/components/work/deviceControl.vue
@@ -1,15 +1,29 @@
 <script setup lang="ts">
-// 设备状态 + 作业控制组件
+import { computed } from 'vue'
+import { useCurrentProject } from '@/composables/useCurrentProject'
 
-const deviceInfo = {
-  编号: '徐工XS65H #01',
-  status: '作业中',
-  connected: '已连接',
-  workStatus: '正常运行',
-  signalStatus: '信号良好',
-}
+const { hasCurrentProject } = useCurrentProject()
 
-const workStatus = '作业进行中'
+const deviceInfo = computed(() => {
+  if (!hasCurrentProject.value) {
+    return {
+      编号: '--',
+      status: '--',
+      connected: '--',
+      workStatus: '--',
+      signalStatus: '--',
+    }
+  }
+  return {
+    编号: '徐工XS65H #01',
+    status: '作业中',
+    connected: '已连接',
+    workStatus: '正常运行',
+    signalStatus: '信号良好',
+  }
+})
+
+const workStatus = computed(() => (hasCurrentProject.value ? '作业进行中' : '--'))
 </script>
 
 <template>
@@ -35,13 +49,13 @@ const workStatus = '作业进行中'
           <!-- 左列：作业状态 -->
           <view class="status-col">
             <view class="tag">
-              <view class="dot dot--green" />
+              <view class="dot" :class="hasCurrentProject ? 'dot--green' : 'dot--gray'" />
               <text>{{ deviceInfo.status }}</text>
             </view>
             <text class="info-label">
               压实作业
             </text>
-            <text class="info-value info-value--green">
+            <text class="info-value" :class="{ 'info-value--green': hasCurrentProject }">
               {{ deviceInfo.workStatus }}
             </text>
           </view>
@@ -49,13 +63,13 @@ const workStatus = '作业进行中'
           <!-- 右列：连接状态 -->
           <view class="status-col">
             <view class="tag">
-              <view class="dot dot--green" />
+              <view class="dot" :class="hasCurrentProject ? 'dot--green' : 'dot--gray'" />
               <text>{{ deviceInfo.connected }}</text>
             </view>
             <text class="info-label">
               设备连接
             </text>
-            <text class="info-value info-value--green">
+            <text class="info-value" :class="{ 'info-value--green': hasCurrentProject }">
               {{ deviceInfo.signalStatus }}
             </text>
           </view>
@@ -85,14 +99,14 @@ const workStatus = '作业进行中'
           <!-- 第二行：当前状态（对齐左侧 label 行） -->
           <view class="control-row">
             <view class="tag">
-              <view class="dot dot--green" />
+              <view class="dot" :class="hasCurrentProject ? 'dot--green' : 'dot--gray'" />
               <text>当前：{{ workStatus }}</text>
             </view>
           </view>
 
           <!-- 第三行：暂停按钮（对齐左侧 value 行） -->
           <view class="control-row">
-            <wd-button type="warning" class="pause-btn" round>
+            <wd-button type="warning" class="pause-btn" round :disabled="!hasCurrentProject">
               暂停作业
             </wd-button>
           </view>
@@ -188,6 +202,10 @@ const workStatus = '作业进行中'
   background: #22c55e;
 }
 
+.dot--gray {
+  background: #ccc;
+}
+
 .info-label {
   font-size: 14px;
   color: #333333;
diff --git a/src/components/work/rtkCanvas.vue b/src/components/work/rtkCanvas.vue
index c5f505c..cd3010a 100644
--- a/src/components/work/rtkCanvas.vue
+++ b/src/components/work/rtkCanvas.vue
@@ -1,5 +1,7 @@
 <script setup lang="ts">
-// RTK 轨迹画布 - 占位组件，后续实现轨迹动画
+import { useCurrentProject } from '@/composables/useCurrentProject'
+
+const { hasCurrentProject } = useCurrentProject()
 
 function goToRtk() {
   uni.navigateTo({
@@ -12,9 +14,9 @@ function goToRtk() {
   <view class="rtk-canvas" @click="goToRtk">
     <view class="canvas-placeholder">
       <text class="placeholder-text">
-        轨迹动画区域
+        {{ hasCurrentProject ? '轨迹动画区域' : '--' }}
       </text>
-      <text class="placeholder-hint">
+      <text v-if="hasCurrentProject" class="placeholder-hint">
         （Canvas 绘制行驶轨迹 + 压实热力图）
       </text>
     </view>
diff --git a/src/components/work/rtkFooter.vue b/src/components/work/rtkFooter.vue
index ea8efc6..452105c 100644
--- a/src/components/work/rtkFooter.vue
+++ b/src/components/work/rtkFooter.vue
@@ -1,5 +1,11 @@
 <script setup lang="ts">
-// RTK 轨迹底部信息组件（图例 + 位置信息）
+import { computed } from 'vue'
+import { useCurrentProject } from '@/composables/useCurrentProject'
+
+const { hasCurrentProject } = useCurrentProject()
+
+const headingText = computed(() => (hasCurrentProject.value ? '航向：NE45°' : '航向：--'))
+const locationText = computed(() => (hasCurrentProject.value ? '114.39°E, 39.9087°N' : '--'))
 </script>
 
 <template>
@@ -26,10 +32,10 @@
     </view>
     <view class="location-info">
       <text class="location-text">
-        航向：NE45°
+        {{ headingText }}
       </text>
       <text class="location-text">
-        114.39°E, 39.9087°N
+        {{ locationText }}
       </text>
     </view>
   </view>
diff --git a/src/components/work/rtkHeader.vue b/src/components/work/rtkHeader.vue
index d237f93..ebe7039 100644
--- a/src/components/work/rtkHeader.vue
+++ b/src/components/work/rtkHeader.vue
@@ -1,5 +1,6 @@
 <script setup lang="ts">
-// RTK 轨迹实时监测 - 状态头部组件
+import { computed } from 'vue'
+import { useCurrentProject } from '@/composables/useCurrentProject'
 
 interface Props {
   deviceName?: string
@@ -9,7 +10,7 @@ interface Props {
   rtkFixed?: boolean
 }
 
-withDefaults(defineProps<Props>(), {
+const props = withDefaults(defineProps<Props>(), {
   deviceName: '徐工XS65H #01',
   speed: 4.2,
   frequency: 28.5,
@@ -17,6 +18,13 @@ withDefaults(defineProps<Props>(), {
   rtkFixed: true,
 })
 
+const { hasCurrentProject } = useCurrentProject()
+
+const displayDeviceName = computed(() => (hasCurrentProject.value ? props.deviceName : '--'))
+const displaySpeed = computed(() => (hasCurrentProject.value ? `${props.speed} km/h` : '--'))
+const displayStatusText = computed(() => (hasCurrentProject.value ? '实时监测中' : '--'))
+const displayRtkText = computed(() => (hasCurrentProject.value ? 'RTK固定' : '--'))
+
 function goToHeatmap() {
   uni.navigateTo({
     url: '/pages/heatmap/index',
@@ -38,12 +46,12 @@ function goToHeatmap() {
 
     <!-- 设备状态 -->
     <view class="device-status">
-      <view class="status-dot" />
+      <view class="status-dot" :class="{ 'status-dot--active': hasCurrentProject }" />
       <text class="device-name">
-        {{ deviceName }}
+        {{ displayDeviceName }}
       </text>
       <text class="status-text">
-        实时监测中
+        {{ displayStatusText }}
       </text>
     </view>
 
@@ -54,29 +62,13 @@ function goToHeatmap() {
           车速
         </text>
         <text class="data-value">
-          {{ speed }} km/h
+          {{ displaySpeed }}
         </text>
       </view>
-      <!-- <view class="data-item">
-        <text class="data-label">
-          振动频率
-        </text>
-        <text class="data-value">
-          {{ frequency }} HZ
-        </text>
-      </view> -->
-      <!-- <view class="data-item">
-        <text class="data-label">
-          振幅
-        </text>
-        <text class="data-value">
-          {{ amplitude }} mm
-        </text>
-      </view> -->
       <view class="rtk-status">
-        <view class="rtk-dot" :class="{ 'rtk-dot--active': rtkFixed }" />
+        <view class="rtk-dot" :class="{ 'rtk-dot--active': hasCurrentProject && rtkFixed }" />
         <text class="rtk-text">
-          RTK固定
+          {{ displayRtkText }}
         </text>
       </view>
     </view>
@@ -101,11 +93,6 @@ function goToHeatmap() {
   color: #333;
 }
 
-/* .subtitle {
-  font-size: 20px;
-  color: #333;
-} */
-
 .device-status {
   display: flex;
   align-items: center;
@@ -117,6 +104,10 @@ function goToHeatmap() {
   width: 8px;
   height: 8px;
   border-radius: 50%;
+  background: #ccc;
+}
+
+.status-dot--active {
   background: #22c55e;
 }
 
diff --git a/src/composables/useCurrentProject.ts b/src/composables/useCurrentProject.ts
new file mode 100644
index 0000000..9bed942
--- /dev/null
+++ b/src/composables/useCurrentProject.ts
@@ -0,0 +1,28 @@
+import { onShow } from '@dcloudio/uni-app'
+import { computed, ref } from 'vue'
+import storage from '@/utils/storage'
+
+const PROJECT_KEY = 'current_project'
+
+/**
+ * 读取本地当前项目；无项目时首页/压实作业数据统一展示为 `--`
+ */
+export function useCurrentProject() {
+  const currentProject = ref(storage.get(PROJECT_KEY))
+
+  const hasCurrentProject = computed(() => currentProject.value?.id != null)
+
+  function refreshCurrentProject() {
+    currentProject.value = storage.get(PROJECT_KEY)
+  }
+
+  onShow(() => {
+    refreshCurrentProject()
+  })
+
+  return {
+    currentProject,
+    hasCurrentProject,
+    refreshCurrentProject,
+  }
+}