diff --git a/components/SplashScreen.vue b/components/SplashScreen.vue
index 711405c..20d000a 100644
--- a/components/SplashScreen.vue
+++ b/components/SplashScreen.vue
@@ -38,6 +38,13 @@ onMounted(() => {
     splashData = {}
   }
 
+  // 清理不是今天的缓存，只保留今天的记录
+  const cleanedSplashData = {}
+  if (splashData[dateStr]) {
+    cleanedSplashData[dateStr] = splashData[dateStr]
+  }
+  splashData = cleanedSplashData
+
   // 获取今天的显示次数
   const todayCount = splashData[dateStr] || 0
 
diff --git a/pages/mine/index.vue b/pages/mine/index.vue
index 1b698ae..f0b6a9a 100644
--- a/pages/mine/index.vue
+++ b/pages/mine/index.vue
@@ -585,6 +585,21 @@ export default {
 
       if (!this.checkPhoneBound()) return
 
+      // 检查冷却时间
+      const cooldownKey = 'avatar_update_cooldown'
+      const lastUpdate = uni.getStorageSync(cooldownKey)
+      const now = Date.now()
+      const cooldownDays = 7
+
+      if (lastUpdate && now - lastUpdate < cooldownDays * 24 * 60 * 60 * 1000) {
+        const daysRemaining = Math.ceil((cooldownDays * 24 * 60 * 60 * 1000 - (now - lastUpdate)) / (24 * 60 * 60 * 1000))
+        uni.showToast({
+          title: `头像修改冷却中，还需${daysRemaining}天`,
+          icon: 'none'
+        })
+        return
+      }
+
       uni.chooseImage({
         count: 1,
         sizeType: ['compressed'], // 选择压缩图
@@ -615,6 +630,9 @@ export default {
         userInfo.avatar = data.avatar || base64
         uni.setStorageSync('user_info', userInfo)
 
+        // 记录修改时间（7天冷却）
+        uni.setStorageSync('avatar_update_cooldown', Date.now())
+
         uni.hideLoading()
         uni.showToast({ title: '头像修改成功', icon: 'success' })
       } catch (err) {
@@ -653,6 +671,21 @@ export default {
         return
       }
 
+      // 检查冷却时间
+      const cooldownKey = 'nickname_update_cooldown'
+      const lastUpdate = uni.getStorageSync(cooldownKey)
+      const now = Date.now()
+      const cooldownDays = 7
+
+      if (lastUpdate && now - lastUpdate < cooldownDays * 24 * 60 * 60 * 1000) {
+        const daysRemaining = Math.ceil((cooldownDays * 24 * 60 * 60 * 1000 - (now - lastUpdate)) / (24 * 60 * 60 * 1000))
+        uni.showToast({
+          title: `昵称修改冷却中，还需${daysRemaining}天`,
+          icon: 'none'
+        })
+        return
+      }
+
       uni.showModal({
         title: '修改昵称',
         editable: true,
@@ -685,6 +718,9 @@ export default {
               userInfo.nickname = data.nickname || newNickname
               uni.setStorageSync('user_info', userInfo)
 
+              // 记录修改时间（7天冷却）
+              uni.setStorageSync('nickname_update_cooldown', Date.now())
+
               uni.hideLoading()
               uni.showToast({ title: '昵称修改成功', icon: 'success' })
             } catch (err) {