diff --git a/珞珈岛-项目相关文件/luojia-island/vue-frontend/src/App.vue b/珞珈岛-项目相关文件/luojia-island/vue-frontend/src/App.vue
index 246a9ca..2d3a4bd 100644
--- a/珞珈岛-项目相关文件/luojia-island/vue-frontend/src/App.vue
+++ b/珞珈岛-项目相关文件/luojia-island/vue-frontend/src/App.vue
@@ -46,7 +46,7 @@ onMounted(() => {
   text-align: center;
   color: #2c3e50;
   margin-top: 60px;
-  position: relative;
+  position: relative; 
   z-index: 1;
 
 }
diff --git a/珞珈岛-项目相关文件/luojia-island/vue-frontend/src/components/Header.vue b/珞珈岛-项目相关文件/luojia-island/vue-frontend/src/components/Header.vue
index b03a61b..9071626 100644
--- a/珞珈岛-项目相关文件/luojia-island/vue-frontend/src/components/Header.vue
+++ b/珞珈岛-项目相关文件/luojia-island/vue-frontend/src/components/Header.vue
@@ -174,7 +174,6 @@ watch(() => userStore.userInfo, (newInfo) => {
   padding: 0 20px; /* 增加左右内边距，避免内容过于靠边 */
   border-bottom: 2px solid #e0e0e0;
   background: rgba(255, 255, 255, 0.5);
-  backdrop-filter: blur(4px); /* 添加毛玻璃效果 */
   position: fixed;
   top: 0;
   width: 100%;
diff --git a/珞珈岛-项目相关文件/luojia-island/vue-frontend/src/components/Login.vue b/珞珈岛-项目相关文件/luojia-island/vue-frontend/src/components/Login.vue
index f2bf4bc..a80046c 100644
--- a/珞珈岛-项目相关文件/luojia-island/vue-frontend/src/components/Login.vue
+++ b/珞珈岛-项目相关文件/luojia-island/vue-frontend/src/components/Login.vue
@@ -206,7 +206,7 @@ async function login() {
       userData.userid = userData.id;
       
       userStore.login(userData);
-
+      window.location.reload(); // 刷新页面以更新用户状态
       ElMessage({
         message: '登录成功',
         type: 'success',
diff --git a/珞珈岛-项目相关文件/luojia-island/vue-frontend/src/components/WelcomeCalendar.vue b/珞珈岛-项目相关文件/luojia-island/vue-frontend/src/components/WelcomeCalendar.vue
index 21fbfba..fc37a3d 100644
--- a/珞珈岛-项目相关文件/luojia-island/vue-frontend/src/components/WelcomeCalendar.vue
+++ b/珞珈岛-项目相关文件/luojia-island/vue-frontend/src/components/WelcomeCalendar.vue
@@ -2,7 +2,7 @@
     <div class="welcome-container">
         <!-- 上部分：欢迎文字 -->
         <div class="welcome-header">
-            欢迎来到珞珈岛，珈人
+            欢迎来到珞珈岛，{{ userStore.userInfo?.username ? userStore.userInfo.username : '珈人' }}
         </div>
 
         <!-- 中间部分：月份、日期、星期 -->
@@ -33,6 +33,7 @@
 
 <script setup lang="js" name="WelcomeCalendar">
 import { ref } from 'vue';
+import { useUserStore } from '@/stores/user';   
 
 const today = new Date();
 
@@ -40,10 +41,31 @@ const today = new Date();
 const currentMonthText = ref(['一', '月']); // 默认值
 const currentDay = ref(today.getDate()); // 当前日期号
 const currentWeekday = ref(['星', '期', '日']); // 当前星期完整文字
-
+const userStore = useUserStore();
 // 打卡状态
 const isCheckedIn = ref(false);
 
+
+// 获取当前用户唯一标识
+const getUserKey = () => {
+  return userStore.userInfo?.userid || userStore.userInfo?.username || 'guest';
+};
+
+// 检查今天是否已打卡
+const checkToday = () => {
+  const todayStr = new Date().toISOString().slice(0, 10);
+  const userKey = getUserKey();
+  return localStorage.getItem(`checkin-${userKey}-${todayStr}`) === '1';
+};
+
+// 打卡功能
+const checkIn = () => {
+  const todayStr = new Date().toISOString().slice(0, 10);
+  const userKey = getUserKey();
+  isCheckedIn.value = true;
+  localStorage.setItem(`checkin-${userKey}-${todayStr}`, '1');
+};
+
 // 初始化日期信息
 const initializeDate = () => {
     const months = [
@@ -55,11 +77,7 @@ const initializeDate = () => {
     currentMonthText.value = months[today.getMonth()].split('');
     currentDay.value = today.getDate();
     currentWeekday.value = weekdays[today.getDay()].split('');
-};
-
-// 打卡功能
-const checkIn = () => {
-    isCheckedIn.value = true;
+    isCheckedIn.value = checkToday(); 
 };
 
 // 初始化
diff --git a/珞珈岛-项目相关文件/luojia-island/vue-frontend/src/views/ChangeInformation.vue b/珞珈岛-项目相关文件/luojia-island/vue-frontend/src/views/ChangeInformation.vue
index 1777486..ffb806f 100644
--- a/珞珈岛-项目相关文件/luojia-island/vue-frontend/src/views/ChangeInformation.vue
+++ b/珞珈岛-项目相关文件/luojia-island/vue-frontend/src/views/ChangeInformation.vue
@@ -150,7 +150,7 @@ const userInfo = computed(() => userStore.userInfo);
 const router = useRouter();
 
 // 默认头像
-const defaultAvatar = require('@/assets/default-avatar/boy_4.png');
+const defaultAvatar = require('@/assets/default-avatar/boy_1.png');
 
 // 处理头像加载错误
 const handleAvatarError = "this.onerror=null;this.src='" + defaultAvatar + "'";