diff --git a/.env.electron b/.env.electron
index 373a354..cd8f9f9 100644
--- a/.env.electron
+++ b/.env.electron
@@ -11,7 +11,7 @@ VITE_APP_CONTEXT_PATH = './'
 
 # 桌面端没有 Vite/Nginx 代理，这里必须配置为真实后端地址。
 # 如后端部署在其他机器，请改为对应地址，例如 'https://example.com/prod-api'。
-VITE_APP_BASE_API = 'http://localhost:8080'
+VITE_APP_BASE_API = 'http://10.254.59.44:8080'
 
 # 监控地址
 VITE_APP_MONITOR_ADMIN = '/admin/applications'
diff --git a/src/App.vue b/src/App.vue
index f929a60..7942912 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -3,6 +3,33 @@
     <router-view />
     <RealtimeAlarmModal />
     <div v-if="offlineAlertActive" class="offline-breath-overlay"></div>
+    <div v-if="offlineDialogVisible" class="offline-panel-mask">
+      <section class="offline-panel">
+        <header class="offline-panel-header">
+          <span class="offline-panel-title">离线报警</span>
+          <el-button text type="danger" @click="clearOfflineAlarms">关闭</el-button>
+        </header>
+        <el-table
+          ref="offlineAlarmTableRef"
+          :data="offlineAlarmRows.length > 8 ? [...offlineAlarmRows, ...offlineAlarmRows] : offlineAlarmRows"
+          border
+          :show-header="false"
+          height="320"
+          empty-text="暂无离线报警"
+          @mouseenter="offlineTablePaused = true"
+          @mouseleave="offlineTablePaused = false"
+        >
+          <el-table-column label="离线设备">
+            <template #default="scope">
+              {{ `设备${scope.row.monitorId}离线` }}
+            </template>
+          </el-table-column>
+        </el-table>
+        <footer class="offline-panel-footer">
+          <el-button type="primary" @click="clearOfflineAlarms">确认</el-button>
+        </footer>
+      </section>
+    </div>
     <el-dialog
       v-model="alarmDetailVisible"
       title="报警信息"
@@ -45,22 +72,20 @@
 </template>
 
 <script setup lang="ts">
-import { ElMessage, ElMessageBox } from 'element-plus';
+import { ElMessage, ElMessageBox, ElNotification } from 'element-plus';
 import { listEmsAlarmActionStep } from '@/api/ems/base/emsAlarmActionStep';
 import { handleExceptions } from '@/api/ems/record/recordAlarmData';
 import RealtimeAlarmModal from '@/components/alarm/RealtimeAlarmModal.vue';
 import { useSettingsStore } from '@/store/modules/settings';
 import { handleThemeStyle } from '@/utils/theme';
 import { useAppStore } from '@/store/modules/app';
-import {
-  closeAlarmReminder,
-  connectAlarmReminder,
-  onAlarmReminderExtra,
-  onAlarmReminderOvertime
-} from '@/utils/alarmReminder';
+import { closeAlarmReminder, connectAlarmReminder, onAlarmReminderExtra, onAlarmReminderOvertime } from '@/utils/alarmReminder';
 
 const appStore = useAppStore();
 const offlineAlertActive = ref(false);
+const offlineDialogVisible = ref(false);
+const offlineAlarmTableRef = ref();
+const offlineAlarmRows = ref<Array<{ monitorId: string }>>([]);
 const alarmDetailVisible = ref(false);
 const alarmDetailTab = ref('alarm');
 const alarmHandling = ref(false);
@@ -68,7 +93,12 @@ const currentActionSteps = ref<any[]>([]);
 const currentAlarmContents = ref<string[]>([]);
 const alarmDetailQueue = ref<any[]>([]);
 const currentAlarmDetail = ref<any | null>(null);
+const offlineTablePaused = ref(false);
 let offlineAlertTimer: ReturnType<typeof setTimeout> | null = null;
+let notificationTimer: ReturnType<typeof setTimeout> | null = null;
+let offlineTableScrollFrame: number | null = null;
+let offlineTableLastScrollAt = 0;
+const notificationQueue: Array<{ message: string; title: string }> = [];
 
 const playAlarmVoice = (message: string) => {
   if (typeof window === 'undefined' || !('speechSynthesis' in window)) {
@@ -97,6 +127,36 @@ const triggerAlarmEffect = () => {
   });
 };
 
+const showAlarmNotification = (message: string, title: string) => {
+  notificationQueue.push({ message, title });
+
+  if (notificationTimer) {
+    return;
+  }
+
+  const flushNotificationQueue = () => {
+    const current = notificationQueue.shift();
+
+    if (!current) {
+      notificationTimer = null;
+      return;
+    }
+
+    ElNotification({
+      title: current.title,
+      message: current.message,
+      type: 'error',
+      duration: 0
+    });
+
+    notificationTimer = setTimeout(() => {
+      flushNotificationQueue();
+    }, 100);
+  };
+
+  flushNotificationQueue();
+};
+
 const showAlarmDialog = (message: string, title: string) => {
   ElMessageBox.alert(message, title, {
     type: 'warning',
@@ -176,6 +236,77 @@ const handleGlobalAlarm = (message: string, title: string) => {
   triggerAlarmEffect();
 };
 
+const stopOfflineTableScroll = () => {
+  if (offlineTableScrollFrame !== null) {
+    cancelAnimationFrame(offlineTableScrollFrame);
+    offlineTableScrollFrame = null;
+  }
+  offlineTableLastScrollAt = 0;
+};
+
+const startOfflineTableScroll = async () => {
+  if (offlineTableScrollFrame !== null) {
+    return;
+  }
+
+  if (!offlineDialogVisible.value || offlineAlarmRows.value.length <= 1) {
+    return;
+  }
+
+  await nextTick();
+
+  const tableEl = offlineAlarmTableRef.value?.$el as HTMLElement | undefined;
+  const bodyWrapper = tableEl?.querySelector('.el-scrollbar__wrap') as HTMLElement | null;
+
+  if (!bodyWrapper || bodyWrapper.scrollHeight <= bodyWrapper.clientHeight) {
+    return;
+  }
+
+  const scrollStep = (timestamp: number) => {
+    if (!offlineDialogVisible.value || offlineAlarmRows.value.length <= 1) {
+      stopOfflineTableScroll();
+      return;
+    }
+
+    if (!offlineTableLastScrollAt) {
+      offlineTableLastScrollAt = timestamp;
+    }
+
+    if (offlineTablePaused.value) {
+      offlineTableLastScrollAt = timestamp;
+    } else if (timestamp - offlineTableLastScrollAt >= 16) {
+      offlineTableLastScrollAt = timestamp;
+
+      if (bodyWrapper.scrollTop + bodyWrapper.clientHeight >= bodyWrapper.scrollHeight) {
+        bodyWrapper.scrollTop = 0;
+      } else {
+        bodyWrapper.scrollTop += 1;
+        if (bodyWrapper.scrollTop > 40 * offlineAlarmRows.value.length) {
+          bodyWrapper.scrollTop -= 40 * offlineAlarmRows.value.length;
+        }
+      }
+    }
+
+    offlineTableScrollFrame = requestAnimationFrame(scrollStep);
+  };
+
+  offlineTableScrollFrame = requestAnimationFrame(scrollStep);
+};
+
+const clearOfflineAlarms = () => {
+  stopOfflineTableScroll();
+  offlineTablePaused.value = false;
+  offlineAlarmRows.value = [];
+  offlineDialogVisible.value = false;
+};
+
+const handleOvertimeAlarm = (monitorId: string) => {
+  playAlarmVoice(`设备${monitorId}离线`);
+  triggerAlarmEffect();
+  offlineAlarmRows.value.push({ monitorId });
+  offlineDialogVisible.value = true;
+};
+
 const deferAlarmDetail = () => {
   closeCurrentAlarmDetail();
   openNextAlarmDetail();
@@ -217,7 +348,7 @@ onAlarmReminderOvertime((device) => {
     return;
   }
 
-  handleGlobalAlarm(`设备${monitorId}离线`, '离线报警');
+  handleOvertimeAlarm(monitorId);
 });
 
 onAlarmReminderExtra((payload) => {
@@ -238,12 +369,28 @@ onMounted(() => {
   });
 });
 
+watch([offlineDialogVisible, () => offlineAlarmRows.value.length], ([visible, length]) => {
+  if (!visible || length <= 1) {
+    stopOfflineTableScroll();
+    return;
+  }
+
+  void startOfflineTableScroll();
+});
+
 onBeforeUnmount(() => {
   if (offlineAlertTimer) {
     clearTimeout(offlineAlertTimer);
     offlineAlertTimer = null;
   }
 
+  if (notificationTimer) {
+    clearTimeout(notificationTimer);
+    notificationTimer = null;
+  }
+
+  stopOfflineTableScroll();
+
   if (typeof window !== 'undefined' && 'speechSynthesis' in window) {
     window.speechSynthesis.cancel();
   }
@@ -260,6 +407,48 @@ onBeforeUnmount(() => {
   padding: 4px 0;
 }
 
+.offline-panel-mask {
+  position: fixed;
+  inset: 0;
+  z-index: 3000;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  pointer-events: none;
+}
+
+.offline-panel {
+  width: 560px;
+  max-width: calc(100vw - 32px);
+  padding: 16px;
+  border-radius: 16px;
+  background: #fff;
+  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.22);
+  pointer-events: auto;
+}
+
+.offline-panel-header,
+.offline-panel-footer {
+  display: flex;
+  align-items: center;
+}
+
+.offline-panel-header {
+  justify-content: space-between;
+  margin-bottom: 12px;
+}
+
+.offline-panel-footer {
+  justify-content: flex-end;
+  margin-top: 16px;
+}
+
+.offline-panel-title {
+  font-size: 18px;
+  font-weight: 600;
+  color: #303133;
+}
+
 .alarm-info-item {
   font-size: 14px;
   line-height: 1.8;
diff --git a/src/utils/alarmReminder.js b/src/utils/alarmReminder.js
index b8ac747..10f12b2 100644
--- a/src/utils/alarmReminder.js
+++ b/src/utils/alarmReminder.js
@@ -1,6 +1,7 @@
 import { listBaseMonitorInfo } from '@/api/ems/base/baseMonitorInfo';
 
-const websocketUrl = 'ws://119.45.202.115:7164/ws';
+const websocketUrl = 'ws://10.254.59.44:7164/ws';
+// const websocketUrl = 'ws://119.45.202.115:7164/ws';
 // const websocketUrl = 'ws://119.45.202.115:7181/ws';
 const deviceDataTime = {};
 const overtime = 1000 * 60 * 60;
@@ -94,7 +95,7 @@ export const connectAlarmReminder = async (onMessage, url = websocketUrl) => {
     alarmReminderSocket.close();
   }
 
-  await initDeviceDataTime();
+  // await initDeviceDataTime();
 
   alarmReminderSocket = new WebSocket(url);