diff --git a/.env.example b/.env.example
index a5a7217..e56f6d7 100644
--- a/.env.example
+++ b/.env.example
@@ -1,5 +1,5 @@
 # Classworks KV 默认服务器域名
-VITE_DEFAULT_KV_SERVER=https://kv.wuyuan.dev
+VITE_DEFAULT_KV_SERVER=https://kv-service.houlang.cloud
 
 # Classworks KV 授权服务器域名
 VITE_DEFAULT_AUTH_SERVER=https://kv.houlang.cloud
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index de72770..3eeffa4 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -34,7 +34,7 @@ jobs:
       - name: Build
         env:
           VITE_APP_ID: d158067f53627d2b98babe8bffd2fd7d
-          VITE_DEFAULT_KV_SERVER: https://kv.wuyuan.dev
+          VITE_DEFAULT_KV_SERVER: https://kv-service.houlang.cloud
           VITE_DEFAULT_AUTH_SERVER: https://kv.houlang.cloud
         run: |
           npm install
diff --git a/src/App.vue b/src/App.vue
index fbf1bf6..4a2989e 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -23,6 +23,12 @@ onMounted(() => {
   // 应用保存的主题设置
   const savedTheme = getSetting("theme.mode");
   theme.global.name.value = savedTheme;
+
+  window.addEventListener('beforeinstallprompt', (e) => {
+    e.preventDefault();
+    window.deferredPwaPrompt = e;
+    window.dispatchEvent(new Event('pwa-prompt-ready'));
+  });
 });
 </script>
 <style>
diff --git a/src/components/PwaInstallCard.vue b/src/components/PwaInstallCard.vue
new file mode 100644
index 0000000..1f41975
--- /dev/null
+++ b/src/components/PwaInstallCard.vue
@@ -0,0 +1,350 @@
+<template>
+  <v-card
+    v-if="showCard"
+    class="mb-4"
+    color="surface-variant"
+    variant="tonal"
+  >
+    <div class="d-flex flex-no-wrap justify-space-between">
+      <div class="pe-4">
+        <v-card-title class="text-h6">
+          安装应用与授权
+        </v-card-title>
+
+        <v-card-subtitle class="pb-1">
+          手动点选下方项目请求安装和权限，也可以直接关闭
+        </v-card-subtitle>
+
+        <v-card-text class="pt-0 pb-1">
+          <v-list density="comfortable" lines="two">
+            <v-list-item
+              v-for="item in chipList"
+              :key="item.key"
+              :disabled="isRequesting"
+              @click="() => handleSingleRequest(item.key)"
+            >
+              <template #prepend>
+                <v-avatar :color="chipColors[item.status]" size="32" variant="tonal">
+                  <v-icon :icon="statusIcons[item.status]"></v-icon>
+                </v-avatar>
+              </template>
+
+              <v-list-item-title>{{ item.label }}</v-list-item-title>
+              <v-list-item-subtitle>{{ item.description }}</v-list-item-subtitle>
+
+              <template #append>
+                <v-chip :color="chipColors[item.status]" size="small" variant="tonal" class="me-2">
+                  {{ statusText[item.status] }}
+                </v-chip>
+                <v-btn
+                  variant="text"
+                  icon="mdi-information"
+                  size="small"
+                  :disabled="isRequesting"
+                  @click.stop="() => openHelp(item.key)"
+                ></v-btn>
+              </template>
+            </v-list-item>
+          </v-list>
+        </v-card-text>
+
+        <v-card-actions>
+          <v-btn
+            class="ms-2"
+            variant="outlined"
+            size="small"
+            @click="dismiss"
+          >
+            关闭
+          </v-btn>
+          <v-btn
+            class="ms-2"
+            variant="elevated"
+            color="primary"
+            size="small"
+            :prepend-icon="isRequesting ? 'mdi-timer-sand' : 'mdi-shield-check'"
+            :disabled="!hasPendingRequests || isRequesting"
+            @click="handleRequest"
+          >
+            {{ isRequesting ? "处理中" : "一次处理全部" }}
+          </v-btn>
+        </v-card-actions>
+      </div>
+
+      <v-avatar
+        class="ma-3"
+        size="100"
+        rounded="0"
+      >
+        <v-icon icon="mdi-monitor-cellphone" size="80"></v-icon>
+      </v-avatar>
+    </div>
+
+    <v-dialog v-model="helpDialog" max-width="520">
+      <v-card>
+        <v-card-title class="text-h6">{{ helpContent.title }}</v-card-title>
+        <v-card-text>
+          <p class="mb-3">{{ helpContent.message }}</p>
+          <v-list density="comfortable">
+            <v-list-item
+              v-for="(link, index) in helpContent.links"
+              :key="index"
+              :href="link.href"
+              target="_blank"
+              rel="noopener"
+            >
+              <v-list-item-title>{{ link.text }}</v-list-item-title>
+              <v-list-item-subtitle>{{ link.desc }}</v-list-item-subtitle>
+            </v-list-item>
+          </v-list>
+        </v-card-text>
+        <v-card-actions>
+          <v-spacer></v-spacer>
+          <v-btn variant="text" @click="helpDialog = false">我知道了</v-btn>
+        </v-card-actions>
+      </v-card>
+    </v-dialog>
+  </v-card>
+</template>
+
+<script setup>
+import { ref, reactive, computed, onMounted, onBeforeUnmount } from 'vue';
+import { getSetting, setSetting, requestNotificationPermission, requestPersistentStorage } from "@/utils/settings";
+
+const showCard = ref(false);
+const isRequesting = ref(false);
+const helpDialog = ref(false);
+const helpContent = reactive({
+  title: "",
+  message: "",
+  links: [],
+});
+
+const statusText = {
+  pending: "待授权",
+  granted: "已完成",
+  denied: "已拒绝",
+  unavailable: "不可用",
+};
+
+const statusIcons = {
+  pending: "mdi-progress-clock",
+  granted: "mdi-check-circle",
+  denied: "mdi-close-circle",
+  unavailable: "mdi-help-circle",
+};
+
+const chipColors = {
+  pending: "primary",
+  granted: "success",
+  denied: "error",
+  unavailable: "surface-variant",
+};
+
+const permissionStates = reactive({
+  pwa: { label: "安装应用", description: "将网站安装为独立应用，便于快速启动", status: "pending" },
+  notification: { label: "通知权限", description: "允许接收作业、考试等通知提醒", status: "pending" },
+  storage: { label: "离线存储", description: "启用持久化存储以获得更稳健的离线体验", status: "pending" },
+});
+
+const chipList = computed(() => [
+  { key: "pwa", ...permissionStates.pwa },
+  { key: "notification", ...permissionStates.notification },
+  { key: "storage", ...permissionStates.storage },
+]);
+
+const hasPendingRequests = computed(() => chipList.value.some((item) => item.status === "pending"));
+
+const helpLinks = {
+  pwa: [
+    {
+      text: "MDN - 安装 PWA 指南",
+      desc: "检查浏览器是否支持并手动触发安装",
+      href: "https://developer.mozilla.org/zh-CN/docs/Web/Progressive_web_apps/Guides/Installing",
+    },
+    {
+      text: "Microsoft Edge - PWA 体验",
+      desc: "Edge 浏览器安装与 UX 说明",
+      href: "https://learn.microsoft.com/zh-cn/microsoft-edge/progressive-web-apps/ux",
+    },
+  ],
+  notification: [
+    {
+      text: "MDN - 通知权限与用法",
+      desc: "浏览器通知权限的工作方式与调试",
+      href: "https://developer.mozilla.org/zh-CN/docs/Web/API/notification",
+    },
+  ],
+  storage: [
+    {
+      text: "MDN - Storage 持久化说明",
+      desc: "了解持久化存储的可用性与申请方式",
+      href: "https://developer.mozilla.org/zh-CN/docs/Web/API/StorageManager/persist",
+    },
+  ],
+};
+
+let displayModeMedia;
+
+const refreshStates = async () => {
+  const hideCard = getSetting("pwa.hideInstallCard");
+  if (hideCard) {
+    showCard.value = false;
+    return;
+  }
+
+  const isStandalone = window.matchMedia('(display-mode: standalone)').matches ||
+    window.navigator.standalone === true;
+
+  if (isStandalone) {
+    permissionStates.pwa.status = "granted";
+  } else if (window.deferredPwaPrompt) {
+    permissionStates.pwa.status = "pending";
+  } else {
+    // 仍标记为待处理，允许点击后给出指导
+    permissionStates.pwa.status = "pending";
+  }
+
+  if (typeof Notification === "undefined") {
+    permissionStates.notification.status = "unavailable";
+  } else {
+    const current = Notification.permission;
+    permissionStates.notification.status = current === "granted"
+      ? "granted"
+      : current === "denied"
+        ? "denied"
+        : "pending";
+  }
+
+  if (navigator.storage?.persisted) {
+    const persisted = await navigator.storage.persisted();
+    permissionStates.storage.status = persisted ? "granted" : "pending";
+  } else {
+    permissionStates.storage.status = "unavailable";
+  }
+
+  const stillNeedAction = chipList.value.some((item) => item.status !== "granted");
+  showCard.value = stillNeedAction;
+};
+
+const requestPwaInstall = async () => {
+  const promptEvent = window.deferredPwaPrompt;
+  if (!promptEvent) {
+    permissionStates.pwa.status = "pending";
+    openHelp("pwa", "浏览器没有提供安装提示，可按文档手动安装。");
+    return;
+  }
+
+  promptEvent.prompt();
+  const { outcome } = await promptEvent.userChoice;
+
+  permissionStates.pwa.status = outcome === "accepted" ? "granted" : "denied";
+  if (outcome !== "accepted") {
+    openHelp("pwa", "如果未出现安装弹窗，或被拒绝，请按说明手动安装。");
+  }
+  window.deferredPwaPrompt = null;
+};
+
+const requestNotification = async () => {
+  if (typeof Notification === "undefined") {
+    permissionStates.notification.status = "unavailable";
+    openHelp("notification", "当前环境不支持通知 API，可查看说明手动开启或更换浏览器。");
+    return;
+  }
+
+  const granted = await requestNotificationPermission();
+  permissionStates.notification.status = granted ? "granted" : "denied";
+  if (!granted) {
+    openHelp("notification", "通知请求未被授予，请按说明检查浏览器或系统设置。");
+  }
+};
+
+const requestStorage = async () => {
+  if (!navigator.storage?.persist) {
+    permissionStates.storage.status = "unavailable";
+    openHelp("storage", "当前浏览器不支持持久化存储，可查看说明或更换浏览器。");
+    return;
+  }
+
+  const persisted = await requestPersistentStorage();
+  permissionStates.storage.status = persisted ? "granted" : "denied";
+  if (!persisted) {
+    openHelp("storage", "未能启用持久化存储，可按说明检查浏览器或系统设置。");
+  }
+};
+
+const handleRequest = async () => {
+  if (!hasPendingRequests.value || isRequesting.value) return;
+  isRequesting.value = true;
+
+  try {
+    await requestPwaInstall();
+    await requestNotification();
+    await requestStorage();
+  } finally {
+    isRequesting.value = false;
+    await refreshStates();
+  }
+};
+
+const handleSingleRequest = async (key) => {
+  if (isRequesting.value) return;
+  isRequesting.value = true;
+  try {
+    if (key === "pwa") {
+      await requestPwaInstall();
+    } else if (key === "notification") {
+      await requestNotification();
+    } else if (key === "storage") {
+      await requestStorage();
+    }
+  } finally {
+    isRequesting.value = false;
+    await refreshStates();
+  }
+};
+
+const openHelp = (key, message = "") => {
+  if (key === "pwa") {
+    helpContent.title = "如何安装为应用";
+  } else if (key === "notification") {
+    helpContent.title = "如何开启通知";
+  } else {
+    helpContent.title = "如何启用离线存储";
+  }
+
+  helpContent.message = message || "查看以下步骤获取更多说明。";
+  helpContent.links = helpLinks[key] || [];
+  helpDialog.value = true;
+};
+
+const dismiss = () => {
+  setSetting("pwa.hideInstallCard", true);
+  showCard.value = false;
+};
+
+const onPromptReady = () => {
+  if (permissionStates.pwa.status !== "granted") {
+    permissionStates.pwa.status = "pending";
+  }
+  refreshStates();
+};
+
+const onDisplayModeChange = () => {
+  refreshStates();
+};
+
+onMounted(() => {
+  refreshStates();
+  window.addEventListener('pwa-prompt-ready', onPromptReady);
+  displayModeMedia = window.matchMedia('(display-mode: standalone)');
+  displayModeMedia.addEventListener('change', onDisplayModeChange);
+});
+
+onBeforeUnmount(() => {
+  window.removeEventListener('pwa-prompt-ready', onPromptReady);
+  if (displayModeMedia) {
+    displayModeMedia.removeEventListener('change', onDisplayModeChange);
+  }
+});
+</script>
diff --git a/src/pages/index.vue b/src/pages/index.vue
index 98c6b6d..a674d50 100644
--- a/src/pages/index.vue
+++ b/src/pages/index.vue
@@ -169,6 +169,8 @@
         @add-exam-card="showAddExamDialog = true"
       />
 
+      <pwa-install-card />
+
       <!-- 推荐添加考试提示 -->
       <v-alert
         v-if="upcomingExams.length > 0 && !hasExamCard"
@@ -441,6 +443,7 @@ import AttendanceSidebar from "@/components/attendance/AttendanceSidebar.vue";
 import AttendanceManagementDialog from "@/components/attendance/AttendanceManagementDialog.vue";
 import HomeworkGrid from "@/components/home/HomeworkGrid.vue";
 import HomeActions from "@/components/home/HomeActions.vue";
+import PwaInstallCard from "@/components/PwaInstallCard.vue";
 import ExamScheduleCard from "@/components/home/ExamScheduleCard.vue";
 import ExamConfigEditor from "@/components/ExamConfigEditor.vue";
 import HitokotoCard from "@/components/HitokotoCard.vue";
@@ -485,6 +488,7 @@ export default {
     AttendanceManagementDialog,
     HomeworkGrid,
     HomeActions,
+    PwaInstallCard,
     ExamScheduleCard,
     ExamConfigEditor,
   },
diff --git a/src/stores/app.js b/src/stores/app.js
index f69178b..b3ca8b8 100644
--- a/src/stores/app.js
+++ b/src/stores/app.js
@@ -5,4 +5,3 @@ export const useAppStore = defineStore('app', {
   state: () => ({
     //
   }),
-})
diff --git a/src/utils/dataProvider.js b/src/utils/dataProvider.js
index 25d35cc..e4df1ec 100644
--- a/src/utils/dataProvider.js
+++ b/src/utils/dataProvider.js
@@ -143,7 +143,7 @@ export default {
    * // 成功时返回:
    * {
    *   success: true,
-   *   url: "https://kv.wuyuan.dev/device-uuid-123/exam_configs?token=abc123",  // 私有访问时包含token
+   *   url: "https://kv-service.houlang.cloud/device-uuid-123/exam_configs?token=abc123",  // 私有访问时包含token
    *   migrated: true,              // 是否成功迁移了本地数据
    *   configured: false            // 是否自动配置了云端设置
    * }
@@ -151,7 +151,7 @@ export default {
    * // 公开访问时返回:
    * {
    *   success: true,
-   *   url: "https://kv.wuyuan.dev/device-uuid-123/exam_configs",  // 公开访问不包含token
+   *   url: "https://kv-service.houlang.cloud/device-uuid-123/exam_configs",  // 公开访问不包含token
    *   migrated: false,
    *   configured: true
    * }
@@ -183,7 +183,7 @@ export default {
         if (autoConfigureCloud) {
           // 使用classworksCloudDefaults配置
           const classworksCloudDefaults = {
-            "server.domain": import.meta.env.VITE_DEFAULT_KV_SERVER || "https://kv.wuyuan.dev",
+            "server.domain": import.meta.env.VITE_DEFAULT_KV_SERVER || "https://kv-service.houlang.cloud",
             "server.siteKey": "",
           };
 
diff --git a/src/utils/settings.js b/src/utils/settings.js
index 2bd75d6..c74cb1b 100644
--- a/src/utils/settings.js
+++ b/src/utils/settings.js
@@ -1,6 +1,6 @@
 // 请求通知权限
 async function requestNotificationPermission() {
-  if (Notification && Notification.requestPermission) {
+  if (typeof Notification !== "undefined" && Notification.requestPermission) {
     const permission = await Notification.requestPermission();
     if (permission === "granted") {
       console.log("通知权限已授予");
@@ -45,10 +45,7 @@ async function initializeStorage() {
   }
 }
 
-// 在页面加载时初始化
-if (typeof window !== "undefined") {
-  window.addEventListener("load", initializeStorage);
-}
+// 初始化将由显式触发方调用，避免页面加载时立即请求权限
 
 /**
  * 配置项定义
@@ -68,7 +65,7 @@ const SETTINGS_STORAGE_KEY = "Classworks_settings";
 
 // 新增: Classworks云端存储的默认设置
 const classworksCloudDefaults = {
-  "server.domain": import.meta.env.VITE_DEFAULT_KV_SERVER || "https://kv.wuyuan.dev",
+  "server.domain": import.meta.env.VITE_DEFAULT_KV_SERVER || "https://kv-service.houlang.cloud",
   //"server.domain": "http://localhost:3030",
   "server.siteKey": "",
 };
@@ -462,6 +459,14 @@ const settingsDefinitions = {
     description: "学号模式最小值",
     icon: "mdi-numeric-negative-1",
   },
+
+  // PWA 设置
+  "pwa.hideInstallCard": {
+    type: "boolean",
+    default: false,
+    description: "不显示PWA安装卡片",
+    icon: "mdi-download-off",
+  },
 };
 
 /**
@@ -752,4 +757,6 @@ export {
   watchSettings,
   getSettingDefinition,
   exportSettingsAsKeyValue,
+  requestNotificationPermission,
+  requestPersistentStorage,
 };