style(ui): 更新家庭相册和积分兑换分类页面的文本和样式

修改家庭相册标题和按钮文本，优化积分兑换分类的背景渐变效果

@@ -138,9 +138,9 @@
     <!-- Family album -->
     <view class="p-5 mt-4 mb-6 bg-white rounded-xl shadow-md mx-4">
       <view class="flex justify-between items-center mb-2">
-        <h2 class="font-medium text-lg">家庭相册</h2>
+        <h2 class="font-medium text-lg">多彩瞬间</h2>
         <view class="text-blue-500 flex items-center" @click="openAlbumList">
-          打开相册
+          查看更多
         </view>
       </view>
       <p class="text-sm text-gray-500 mb-3">记录每一个家庭活动瞬间</p>

 <!--
  * @Date: 2025-08-27 17:47:03
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-09-08 13:36:16
+ * @LastEditTime: 2025-09-09 15:16:59
  * @FilePath: /lls_program/src/pages/RewardCategories/index.vue
  * @Description: 积分兑换分类
 -->
@@ -11,7 +11,7 @@
       <view class="p-4 space-y-4">
         <view v-for="(category, index) in categories" :key="category.id" class="rounded-lg overflow-hidden shadow-sm" @click="goToRewards(category)">
             <view class="relative" style="height: 380rpx;">
-              <view class="absolute inset-0 bg-black bg-opacity-30 flex flex-col justify-end p-4 text-white">
+              <view class="absolute inset-0 flex flex-col justify-end p-4 text-white" style="background: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.6) 100%);">
                 <h3 class="text-xl font-bold mb-1">{{ category.title }}</h3>
                 <p class="text-sm text-white text-opacity-90">
                   {{ category.note }}