Fix:4778 【商城小程序】产品故事苹果手机字体单独调整，字体加大2个字号

pkg_user/views/gift/components/GiftCard.vue

@@ -15,6 +15,7 @@
       </view>
       <view 
           class="good-story"
+          :class="{'ios-story': isIOS}"
           v-if="card.isBlind !== 1 && card.giftProducts[0].productStory && card.isShowProductStory"
           :style="{
             right: (card.productStoryX*2 || 0)   + 'rpx',
@@ -158,6 +159,9 @@ export default {
       const isReceiveNum = this.card.giftProducts && this.card.giftProducts.filter(e => e.isReceive === 1).length
       return gitfNum === isReceiveNum
     },
+    isIOS() {
+      return uni.getSystemInfoSync().osName === 'ios'
+    },
     isLogin() {
       return !!cookie.get('login_status'); 
     },
@@ -462,4 +466,7 @@ export default {
   font-size: 24rpx;
   line-height: 36rpx;
 }
+.good-story.ios-story {
+  font-size: 26rpx;
+}
 </style>