diff --git a/src/components/HomeworkEditDialog.vue b/src/components/HomeworkEditDialog.vue
index ca643a2..c762f67 100644
--- a/src/components/HomeworkEditDialog.vue
+++ b/src/components/HomeworkEditDialog.vue
@@ -213,6 +213,26 @@
         </div>
       </v-card-text>
 
+      <!-- 非今日编辑警告 -->
+      <v-alert
+        v-if="isEditingPastData"
+        type="warning"
+        variant="tonal"
+        class="mx-4 mb-4"
+        border="start"
+        border-color="warning"
+        prominent
+      >
+        <template #prepend>
+        </template>
+        <div class="d-flex flex-column">
+          <div class="text-h6 mb-1">你打算修改历史？</div>
+          <div class="text-body-2">
+            这是 {{ new Date(currentDateString.slice(0,4), currentDateString.slice(4,6)-1, currentDateString.slice(6,8)).toLocaleDateString() }} 的作业 • 请谨慎操作，确保不会覆盖重要数据
+          </div>
+        </div>
+      </v-alert>
+
       <div class="text-center text-body-2 text-disabled mb-5">
         点击空白处完成编辑
       </div>
@@ -244,6 +264,14 @@ export default {
     autoSave: {
       type: Boolean,
       default: false
+    },
+    isEditingPastData: {
+      type: Boolean,
+      default: false
+    },
+    currentDateString: {
+      type: String,
+      default: ""
     }
   },
   emits: ["update:modelValue", "save"],
diff --git a/src/components/UrgentTestDialog.vue b/src/components/UrgentTestDialog.vue
index 1e3969c..e3f4dfe 100644
--- a/src/components/UrgentTestDialog.vue
+++ b/src/components/UrgentTestDialog.vue
@@ -43,8 +43,14 @@
                           color="red"
                           inset
                         >
-
                         </v-switch>
+                        <v-checkbox
+                          v-model="notificationForm.isPersistent"
+                          label="常驻展示"
+                          color="primary"
+                          hide-details
+                          class="mt-0"
+                        ></v-checkbox>
                       </v-col>
                       <v-col cols="12">
                         <v-textarea
@@ -82,6 +88,42 @@
             </v-col>
           </v-row>
 
+          <!-- 常驻通知管理 -->
+          <v-row class="mt-4">
+            <v-col cols="12">
+              <v-card>
+                <v-card-title>
+                  <v-icon class="mr-2">mdi-pin</v-icon>
+                  常驻通知管理
+                </v-card-title>
+                <v-card-text>
+                  <div v-if="persistentNotifications.length === 0" class="text-center text-grey py-4">
+                    暂无常驻通知
+                  </div>
+                  <v-list v-else>
+                    <v-list-item
+                      v-for="item in persistentNotifications"
+                      :key="item.id"
+                      :title="item.message"
+                      :subtitle="formatTime(item.timestamp)"
+                      lines="two"
+                    >
+                      <template v-slot:prepend>
+                        <v-icon :color="item.isUrgent ? 'error' : 'primary'">
+                          {{ item.isUrgent ? 'mdi-alert-circle' : 'mdi-information' }}
+                        </v-icon>
+                      </template>
+                      <template v-slot:append>
+                        <v-btn icon="mdi-pencil" variant="text" size="small" @click="openEditDialog(item)"></v-btn>
+                        <v-btn icon="mdi-delete" variant="text" color="error" size="small" @click="confirmDelete(item.id)"></v-btn>
+                      </template>
+                    </v-list-item>
+                  </v-list>
+                </v-card-text>
+              </v-card>
+            </v-col>
+          </v-row>
+
           <!-- 消息发送历史 -->
           <v-row class="mt-4">
             <v-col cols="12">
@@ -222,6 +264,57 @@
 
     <ChatWidget />
     <EventSender ref="eventSender" />
+
+    <!-- 编辑常驻通知对话框 -->
+    <v-dialog v-model="editDialog" max-width="500" :fullscreen="$vuetify.display.xs">
+      <v-card>
+        <v-toolbar flat density="compact">
+          <v-toolbar-title>编辑常驻通知</v-toolbar-title>
+          <v-spacer></v-spacer>
+          <v-btn icon="mdi-close" @click="editDialog = false"></v-btn>
+        </v-toolbar>
+        <v-card-text>
+          <v-form>
+            <v-textarea
+              v-model="editForm.message"
+              label="通知内容"
+              rows="3"
+              auto-grow
+            ></v-textarea>
+            <v-switch
+              v-model="editForm.isUrgent"
+              label="强调通知"
+              color="error"
+              hide-details
+            ></v-switch>
+            <v-checkbox
+              v-model="editForm.resend"
+              label="保存并重新发送通知"
+              hint="勾选后将作为新通知发送给所有在线设备"
+              persistent-hint
+            ></v-checkbox>
+          </v-form>
+        </v-card-text>
+        <v-card-actions>
+          <v-spacer></v-spacer>
+          <v-btn variant="text" @click="editDialog = false">取消</v-btn>
+          <v-btn color="primary" :loading="savingEdit" @click="saveEdit">保存</v-btn>
+        </v-card-actions>
+      </v-card>
+    </v-dialog>
+
+    <!-- 删除确认对话框 -->
+    <v-dialog v-model="deleteConfirmDialog" max-width="400">
+      <v-card>
+        <v-card-title class="text-h5">确认删除</v-card-title>
+        <v-card-text>确定要删除这条常驻通知吗？此操作无法撤销。</v-card-text>
+        <v-card-actions>
+          <v-spacer></v-spacer>
+          <v-btn color="grey-darken-1" variant="text" @click="deleteConfirmDialog = false">取消</v-btn>
+          <v-btn color="error" variant="text" @click="confirmDelete">删除</v-btn>
+        </v-card-actions>
+      </v-card>
+    </v-dialog>
   </v-dialog>
 </template>
 
@@ -229,6 +322,7 @@
 import ChatWidget from '@/components/ChatWidget.vue'
 import EventSender from '@/components/EventSender.vue'
 import { on as socketOn } from '@/utils/socketClient'
+import dataProvider from '@/utils/dataProvider'
 
 export default {
   name: 'UrgentTestDialog',
@@ -248,10 +342,22 @@ export default {
       sending: false,
       notificationForm: {
         isUrgent: false,
-        message: ''
+        message: '',
+        isPersistent: false
       },
       sentMessages: [],
-      receiptCleanup: []
+      receiptCleanup: [],
+      persistentNotifications: [],
+      editDialog: false,
+      editForm: {
+        id: null,
+        message: '',
+        isUrgent: false,
+        resend: false
+      },
+      savingEdit: false,
+      deleteConfirmDialog: false,
+      itemToDelete: null,
     }
   },
   computed: {
@@ -266,6 +372,7 @@ export default {
   },
   mounted() {
     this.setupEventListeners()
+    this.loadPersistentNotifications()
   },
   beforeUnmount() {
     this.cleanup()
@@ -288,10 +395,13 @@ export default {
       try {
         // 生成32位随机通知ID
         const notificationId = this.generateNotificationId()
+        const messageContent = this.notificationForm.message
+        const isUrgent = this.notificationForm.isUrgent
+        const isPersistent = this.notificationForm.isPersistent
 
         const result = await this.$refs.eventSender.sendNotification(
-          this.notificationForm.message,
-          this.notificationForm.isUrgent,
+          messageContent,
+          isUrgent,
           [],
           { deviceName: '测试设备', deviceType: 'system', isReadOnly: false },
           notificationId
@@ -302,8 +412,8 @@ export default {
         this.sentMessages.push({
           id: eventId,
           notificationId: notificationId,
-          message: this.notificationForm.message,
-          isUrgent: this.notificationForm.isUrgent,
+          message: messageContent,
+          isUrgent: isUrgent,
           timestamp: new Date().toISOString(),
           receipts: {
             displayed: [],
@@ -311,6 +421,36 @@ export default {
           }
         })
 
+        // 处理常驻通知
+        if (isPersistent) {
+          try {
+            const listKey = 'notification-list'
+            const existingData = await dataProvider.loadData(listKey)
+            let list = []
+            if (existingData && Array.isArray(existingData)) {
+              list = existingData
+            } else if (existingData && existingData.success !== false && Array.isArray(existingData.data)) {
+            // list = existingData.data
+               list = existingData.data
+            }
+
+            const newNotification = {
+              id: notificationId,
+              message: messageContent,
+              isUrgent: isUrgent,
+              timestamp: new Date().toISOString()
+            }
+
+            list.unshift(newNotification)
+            await dataProvider.saveData(listKey, list)
+            // 更新本地列表
+            this.persistentNotifications = list
+            console.log('常驻通知已保存')
+          } catch (e) {
+            console.error('保存常驻通知失败', e)
+          }
+        }
+
         console.log('通知已发送，事件ID:', eventId, '通知ID:', notificationId)
         this.resetForm()
       } catch (error) {
@@ -320,6 +460,13 @@ export default {
       }
     },
 
+    resetForm() {
+      this.notificationForm = {
+        isUrgent: false,
+        message: '',
+        isPersistent: false
+      }
+    },
 
     close() {
       this.dialog = false
@@ -414,6 +561,137 @@ export default {
       return receipts.displayed.filter(device =>
         !readSenderIds.includes(device.senderId)
       )
+    },
+
+    openEditDialog(notification) {
+      this.editForm = {
+        id: notification.id,
+        message: notification.message,
+        isUrgent: notification.isUrgent || false,
+        resend: false,
+        timestamp: notification.timestamp
+      }
+      this.editDialog = true
+    },
+
+    async saveEdit() {
+      if (!this.editForm.message.trim()) return
+
+      this.savingEdit = true
+      try {
+        // 更新列表
+        const index = this.persistentNotifications.findIndex(n => n.id === this.editForm.id)
+        if (index !== -1) {
+          this.persistentNotifications[index] = {
+            ...this.persistentNotifications[index],
+            message: this.editForm.message,
+            isUrgent: this.editForm.isUrgent,
+            // 如果重新发送，更新时间戳？或者保持原样？通常编辑后更新时间戳比较合理
+            timestamp: new Date().toISOString()
+          }
+
+          await dataProvider.saveData('notification-list', this.persistentNotifications)
+
+          // 如果需要重新发送
+          if (this.editForm.resend) {
+             const notificationId = this.editForm.id
+             const messageContent = this.editForm.message
+             const isUrgent = this.editForm.isUrgent
+
+             const result = await this.$refs.eventSender.sendNotification(
+              messageContent,
+              isUrgent,
+              [],
+              { deviceName: '测试设备', deviceType: 'system', isReadOnly: false },
+              notificationId
+            )
+
+            const eventId = result?.eventId || `msg-${Date.now()}`
+
+            // 添加到发送记录
+            this.sentMessages.push({
+              id: eventId,
+              notificationId: notificationId,
+              message: messageContent,
+              isUrgent: isUrgent,
+              timestamp: new Date().toISOString(),
+              receipts: {
+                displayed: [],
+                read: []
+              }
+            })
+          }
+
+          this.editDialog = false
+          this.$message?.success('已更新')
+        }
+      } catch (e) {
+        console.error('保存失败', e)
+        this.$message?.error('保存失败')
+      } finally {
+        this.savingEdit = false
+      }
+    },
+
+    async loadPersistentNotifications() {
+      try {
+        const res = await dataProvider.loadData('notification-list')
+        if (res && Array.isArray(res)) {
+          this.persistentNotifications = res
+        } else if (res && res.success !== false && Array.isArray(res.data)) {
+          this.persistentNotifications = res.data
+        } else {
+          this.persistentNotifications = []
+        }
+      } catch (e) {
+        console.error('加载常驻通知失败', e)
+      }
+    },
+
+    async deleteNotification(notificationId) {
+      const confirmed = confirm('确定要删除这个通知吗？')
+      if (!confirmed) return
+
+      try {
+        // 从 sentMessages 中删除
+        this.sentMessages = this.sentMessages.filter(msg => msg.id !== notificationId)
+
+        // 从常驻通知列表中删除
+        this.persistentNotifications = this.persistentNotifications.filter(notif => notif.id !== notificationId)
+
+        // TODO: 调用接口删除通知（如果有的话）
+
+        console.log('通知已删除，通知ID:', notificationId)
+      } catch (error) {
+        console.error('删除通知失败:', error)
+      }
+    },
+
+    deletePersistentNotification(id) {
+      this.itemToDelete = id
+      this.deleteConfirmDialog = true
+    },
+
+    async confirmDelete() {
+      if (!this.itemToDelete) return
+
+      const id = this.itemToDelete
+      this.deleteConfirmDialog = false
+      this.itemToDelete = null
+
+      try {
+        this.persistentNotifications = this.persistentNotifications.filter(n => n.id !== id)
+        await dataProvider.saveData('notification-list', this.persistentNotifications)
+        this.$message?.success('已删除')
+      } catch (e) {
+        console.error('删除失败', e)
+        this.$message?.error('删除失败')
+      }
+    },
+
+    confirmDelete(id) {
+      this.itemToDelete = id
+      this.deleteConfirmDialog = true
     }
   }
 }
diff --git a/src/components/attendance/AttendanceSidebar.vue b/src/components/attendance/AttendanceSidebar.vue
index a6596fe..efff8b9 100644
--- a/src/components/attendance/AttendanceSidebar.vue
+++ b/src/components/attendance/AttendanceSidebar.vue
@@ -1,16 +1,17 @@
 <template>
   <v-col
     v-if="studentList && studentList.length"
-    v-ripple="{
+    v-ripple="!isEditingDisabled ? {
       class: `text-${
         ['primary', 'secondary', 'info', 'success', 'warning', 'error'][
           Math.floor(Math.random() * 6)
         ]
       }`,
-    }"
+    } : false"
+    :class="{ 'cursor-not-allowed': isEditingDisabled }"
     class="attendance-area no-select"
     cols="1"
-    @click="$emit('click')"
+    @click="handleClick"
   >
     <h1>出勤</h1>
     <h2>
@@ -94,12 +95,25 @@ export default {
       type: Object,
       required: true,
     },
+    isEditingDisabled: {
+      type: Boolean,
+      default: false,
+    },
   },
-  emits: ["click"],
+  emits: ["click", "disabled-click"],
   setup() {
     const display = useDisplay();
     return { display };
   },
+  methods: {
+    handleClick() {
+      if (this.isEditingDisabled) {
+        this.$emit('disabled-click');
+      } else {
+        this.$emit('click');
+      }
+    },
+  },
 };
 </script>
 
diff --git a/src/components/home/HomeworkGrid.vue b/src/components/home/HomeworkGrid.vue
index 0f921d1..b5182ea 100644
--- a/src/components/home/HomeworkGrid.vue
+++ b/src/components/home/HomeworkGrid.vue
@@ -13,11 +13,11 @@
         <!-- 出勤卡片 -->
         <v-card
           v-if="item.type === 'attendance'"
-          :class="{ 'glow-highlight': highlightedCards[item.key] }"
+          :class="{ 'glow-highlight': highlightedCards[item.key], 'cursor-not-allowed': isEditingDisabled, 'cursor-pointer': !isEditingDisabled }"
           border
           class="glow-track"
           height="100%"
-          @click="$emit('open-attendance')"
+          @click="handleCardClick('attendance', null)"
           @mousemove="handleMouseMove"
           @touchmove="handleTouchMove"
         >
@@ -82,11 +82,11 @@
         <!-- 自定义/测试卡片 -->
         <v-card
           v-else-if="item.type === 'custom'"
-          :class="{ 'glow-highlight': highlightedCards[item.key] }"
+          :class="{ 'glow-highlight': highlightedCards[item.key], 'cursor-not-allowed': isEditingDisabled, 'cursor-pointer': !isEditingDisabled }"
           border
           class="glow-track"
           height="100%"
-          @click="!isEditingDisabled && $emit('open-dialog', item.key)"
+          @click="handleCardClick('dialog', item.key)"
           @mousemove="handleMouseMove"
           @touchmove="handleTouchMove"
         >
@@ -102,11 +102,11 @@
         <!-- 普通作业卡片 -->
         <v-card
           v-else
-          :class="{ 'glow-highlight': highlightedCards[item.key] }"
+          :class="{ 'glow-highlight': highlightedCards[item.key], 'cursor-not-allowed': isEditingDisabled, 'cursor-pointer': !isEditingDisabled }"
           border
           class="glow-track"
           height="100%"
-          @click="!isEditingDisabled && $emit('open-dialog', item.key)"
+          @click="handleCardClick('dialog', item.key)"
           @mousemove="handleMouseMove"
           @touchmove="handleTouchMove"
         >
@@ -133,11 +133,10 @@
       <v-chip
         v-for="subject in unusedSubjects"
         :key="subject.name"
-        :disabled="isEditingDisabled"
         class="ma-1"
         color="primary"
         variant="tonal"
-        @click="$emit('open-dialog', subject.name)"
+        @click="handleCardClick('dialog', subject.name)"
       >
         <v-icon start size="small">mdi-plus</v-icon>
         {{ subject.name }}
@@ -149,8 +148,7 @@
         <v-btn
           v-for="subject in unusedSubjects"
           :key="subject.name"
-          :disabled="isEditingDisabled"
-          @click="$emit('open-dialog', subject.name)"
+          @click="handleCardClick('dialog', subject.name)"
         >
           <v-icon start> mdi-plus</v-icon>
           {{ subject.name }}
@@ -162,10 +160,9 @@
         <v-card
           v-for="subject in unusedSubjects"
           :key="subject.name"
-          :disabled="isEditingDisabled"
           border
           class="empty-subject-card"
-          @click="$emit('open-dialog', subject.name)"
+          @click="handleCardClick('dialog', subject.name)"
         >
           <v-card-title class="text-subtitle-1">
             {{ subject.name }}
@@ -209,13 +206,25 @@ export default {
       default: () => ({}),
     },
   },
-  emits: ["open-dialog", "open-attendance"],
+  emits: ["open-dialog", "open-attendance", "disabled-click"],
   computed: {
     isMobile() {
       return this.$vuetify.display.mobile;
     },
   },
   methods: {
+    handleCardClick(type, key) {
+      if (this.isEditingDisabled) {
+        this.$emit('disabled-click');
+        return;
+      }
+
+      if (type === 'attendance') {
+        this.$emit('open-attendance');
+      } else if (type === 'dialog') {
+        this.$emit('open-dialog', key);
+      }
+    },
     splitPoint(content) {
       return content.split("\n").filter((text) => text.trim());
     },
@@ -241,3 +250,17 @@ export default {
   },
 };
 </script>
+
+<style scoped>
+.cursor-not-allowed {
+  cursor: not-allowed !important;
+}
+
+.cursor-pointer {
+  cursor: pointer;
+}
+
+.v-card.cursor-not-allowed:hover {
+  transform: none !important;
+}
+</style>
diff --git a/src/pages/index.vue b/src/pages/index.vue
index 2a96451..7b4166a 100644
--- a/src/pages/index.vue
+++ b/src/pages/index.vue
@@ -66,6 +66,77 @@
   <div v-if="!shouldShowInit" class="d-flex">
     <!-- 主要内容区域 -->
     <v-container class="main-window flex-grow-1 no-select bloom-container" fluid>
+      <!-- 常驻通知区域 -->
+      <v-row v-if="persistentNotifications.length > 0" class="mb-4">
+        <v-col cols="12">
+          <v-card
+            v-for="notification in persistentNotifications"
+            :key="notification.id"
+            :color="notification.isUrgent ? 'error' : 'primary'"
+            class="mb-2 cursor-pointer"
+            variant="tonal"
+            @click="showNotificationDetail(notification)"
+          >
+            <v-card-text class="d-flex align-center py-3">
+
+              <span class="text-h6 text-truncate font-weight-bold">{{ notification.message }}</span>
+              <v-spacer></v-spacer>
+              <v-btn icon="mdi-chevron-right" variant="text"></v-btn>
+            </v-card-text>
+          </v-card>
+        </v-col>
+      </v-row>
+
+      <!-- 通知详情对话框 -->
+      <v-dialog v-model="notificationDetailDialog" max-width="700" scrollable>
+        <v-card v-if="currentNotification" class="rounded-xl">
+          <v-card-title class="d-flex align-center pa-4 text-h5">
+
+            <span :class="currentNotification.isUrgent ? 'text-error' : ''" class="font-weight-bold">
+              {{ currentNotification.isUrgent ? '强调通知' : '通知详情' }}
+            </span>
+            <v-spacer></v-spacer>
+            <v-btn icon="mdi-close" variant="text" @click="notificationDetailDialog = false"></v-btn>
+          </v-card-title>
+
+          <v-divider></v-divider>
+
+          <v-card-text class="pa-6">
+            <div class="text-h4 font-weight-medium mb-4" style="line-height: 1.5;">
+              {{ currentNotification.message }}
+            </div>
+            <div class="text-subtitle-1 text-grey">
+              发布时间：{{ formatTime(currentNotification.timestamp) }}
+            </div>
+          </v-card-text>
+
+          <v-divider></v-divider>
+
+          <v-card-actions class="pa-4">
+            <v-btn
+              color="error"
+              prepend-icon="mdi-delete"
+              size="x-large"
+              variant="tonal"
+              class="px-6"
+              @click="removePersistentNotification(currentNotification.id)"
+            >
+              删除通知
+            </v-btn>
+            <v-spacer></v-spacer>
+            <v-btn
+              color="primary"
+              size="x-large"
+              variant="elevated"
+              class="px-8"
+              @click="notificationDetailDialog = false"
+            >
+              关闭
+            </v-btn>
+          </v-card-actions>
+        </v-card>
+      </v-dialog>
+
       <homework-grid
         :sorted-items="sortedItems"
         :unused-subjects="unusedSubjects"
@@ -75,6 +146,7 @@
         :highlighted-cards="highlightedCards"
         @open-dialog="openDialog"
         @open-attendance="setAttendanceArea"
+        @disabled-click="handleDisabledClick"
       />
 
       <home-actions
@@ -100,7 +172,9 @@
       v-if="!mobile"
       :student-list="state.studentList"
       :attendance="state.boardData.attendance"
+      :is-editing-disabled="isEditingDisabled"
       @click="setAttendanceArea"
+      @disabled-click="handleDisabledClick"
     />
   </div>
 
@@ -109,6 +183,8 @@
     :auto-save="autoSave"
     :initial-content="state.textarea"
     :title="state.dialogTitle"
+    :is-editing-past-data="isEditingPastData"
+    :current-date-string="state.dateString"
     @save="handleHomeworkSave"
   />
 
@@ -220,6 +296,22 @@
       </v-card-actions>
     </v-card>
   </v-dialog>
+  <!-- 通知详情对话框 -->
+  <v-dialog v-model="notificationDetailDialog" max-width="600">
+    <v-card v-if="currentNotification">
+      <v-card-title class="headline" :class="currentNotification.isUrgent ? 'text-error' : 'text-primary'">
+        {{ currentNotification.isUrgent ? '强调通知' : '通知详情' }}
+      </v-card-title>
+      <v-card-text class="text-h5 py-4">
+        {{ currentNotification.message }}
+      </v-card-text>
+      <v-card-actions>
+        <v-btn color="error" variant="text" @click="removePersistentNotification(currentNotification.id)">删除</v-btn>
+        <v-spacer></v-spacer>
+        <v-btn color="primary" @click="notificationDetailDialog = false">关闭</v-btn>
+      </v-card-actions>
+    </v-card>
+  </v-dialog>
   <br /><br /><br />
 </template>
 
@@ -396,6 +488,11 @@ export default {
       urgentTestDialog: false,
       // 令牌信息
       tokenInfo: null,
+
+      // 常驻通知
+      persistentNotifications: [],
+      notificationDetailDialog: false,
+      currentNotification: null,
     };
   },
 
@@ -528,7 +625,17 @@ export default {
       return getSetting("display.dynamicSort");
     },
     isEditingDisabled() {
-      return this.state.uploadLoading || this.state.downloadLoading;
+      // 检查是否禁用编辑：加载中、没有编辑权限、或被配置禁止编辑过往数据
+      if (this.state.uploadLoading || this.state.downloadLoading) return true;
+
+      // 检查是否是只读 token
+      const manager = this.$refs.studentNameManager;
+      if (manager?.isReadOnly) return true;
+
+      // 检查是否禁止编辑过往数据
+      if (!this.canEditCurrentDate) return true;
+
+      return false;
     },
     unreadCount() {
       return this.$refs.messageLog?.unreadCount || 0;
@@ -542,12 +649,25 @@ export default {
     confirmNonTodaySave() {
       return getSetting("edit.confirmNonTodaySave");
     },
+    blockPastDataEdit() {
+      return getSetting("edit.blockPastDataEdit");
+    },
     shouldShowSaveConfirm() {
       return !this.isToday && this.confirmNonTodaySave;
     },
     shouldBlockAutoSave() {
       return !this.isToday && this.autoSave && this.blockNonTodayAutoSave;
     },
+    canEditCurrentDate() {
+      // 检查是否可以编辑当前日期的数据
+      if (this.isToday) return true;
+      if (this.blockPastDataEdit) return false;
+      return true;
+    },
+    isEditingPastData() {
+      // 是否正在编辑过往数据（非今日数据）
+      return !this.isToday;
+    },
     showFullscreenButton() {
       return getSetting("display.showFullscreenButton");
     },
@@ -704,6 +824,9 @@ export default {
 
       // 获取令牌信息
       await this.loadTokenInfo();
+
+      // 加载常驻通知
+      this.loadPersistentNotifications();
     } catch (err) {
       console.error("初始化失败:", err);
       this.showError("初始化失败，请刷新页面重试");
@@ -871,6 +994,11 @@ export default {
       return `${year}${month}${day}`;
     },
 
+    formatTime(timestamp) {
+      if (!timestamp) return '';
+      return new Date(timestamp).toLocaleString();
+    },
+
     getToday() {
       return new Date();
     },
@@ -1094,6 +1222,19 @@ export default {
     },
 
     async openDialog(subject) {
+      // 检查编辑权限
+      if (this.isEditingDisabled) {
+        const manager = this.$refs.studentNameManager;
+        if (manager?.isReadOnly) {
+          this.$message.warning("无法编辑", "当前使用的是只读令牌");
+        } else if (!this.canEditCurrentDate) {
+          this.$message.warning("无法编辑", "已禁止编辑过往数据");
+        } else {
+          this.$message.warning("无法编辑", "数据加载中，请稍候");
+        }
+        return;
+      }
+
       // 如果是自定义卡片
       if (subject.startsWith('custom-')) {
         this.currentEditSubject = subject;
@@ -1145,10 +1286,25 @@ export default {
     },
 
     setAttendanceArea() {
+      // 检查编辑权限
+      if (this.isEditingDisabled) {
+        this.handleDisabledClick();
+        return;
+      }
       this.state.attendanceDialog = true;
     },
 
-
+    handleDisabledClick() {
+      // 处理点击禁用卡片/区域的情况
+      const manager = this.$refs.studentNameManager;
+      if (manager?.isReadOnly) {
+        this.$message.warning("无法编辑", "当前使用的是只读令牌");
+      } else if (!this.canEditCurrentDate) {
+        this.$message.warning("无法编辑", "已禁止编辑过往数据");
+      } else {
+        this.$message.warning("无法编辑", "数据加载中，请稍候");
+      }
+    },
 
     zoom(direction) {
       const step = 2;
@@ -1182,6 +1338,7 @@ export default {
         this.state.refreshInterval = setInterval(() => {
           if (!this.shouldSkipRefresh()) {
             this.downloadData();
+            this.loadPersistentNotifications();
           }
         }, interval * 1000);
       }
@@ -1300,6 +1457,13 @@ export default {
         const handler = (msg) => {
           // Expect msg = { uuid, key, action, created?, updatedAt?, deletedAt?, batch? }
           if (!msg) return;
+
+          // 检查是否是通知列表更新
+          if (msg.key === 'notification-list') {
+             this.loadPersistentNotifications();
+             return;
+          }
+
           // We only care about current date key changes
           const expectedKey = `classworks-data-${this.state.dateString}`;
           if (msg.key !== expectedKey) return;
@@ -1817,6 +1981,30 @@ export default {
         console.error("清理URL参数失败:", error);
       }
     },
+
+    async loadPersistentNotifications() {
+      try {
+        const res = await dataProvider.loadData('notification-list');
+        if (res && Array.isArray(res)) {
+          this.persistentNotifications = res;
+        } else if (res && res.success !== false && Array.isArray(res.data)) {
+          this.persistentNotifications = res.data;
+        } else {
+          this.persistentNotifications = [];
+        }
+      } catch (e) {
+        console.error('加载常驻通知失败', e);
+      }
+    },
+    showNotificationDetail(notification) {
+      this.currentNotification = notification;
+      this.notificationDetailDialog = true;
+    },
+    async removePersistentNotification(id) {
+      this.persistentNotifications = this.persistentNotifications.filter(n => n.id !== id);
+      await dataProvider.saveData('notification-list', this.persistentNotifications);
+      this.notificationDetailDialog = false;
+    },
   },
 };
 </script>
diff --git a/src/utils/settings.js b/src/utils/settings.js
index 94338f3..def0bcb 100644
--- a/src/utils/settings.js
+++ b/src/utils/settings.js
@@ -289,6 +289,13 @@ const settingsDefinitions = {
     description: "保存非当天数据需确认",
     icon: "mdi-calendar-alert",
   },
+  "edit.blockPastDataEdit": {
+    type: "boolean",
+    default: false,
+    description: "禁止编辑过往数据",
+    icon: "mdi-lock-clock",
+    // 启用后将禁止编辑非当天的历史数据，包括作业卡片和出勤统计
+  },
   "edit.autoSavePromptText": {
     type: "string",
     default: "喵？喵呜！",