feat: 产品引导轮播优化图片加载

src/web/templates/frontRouter/pc/pure/sess/guide-intro-dialog-content.html

@@ -76,7 +76,7 @@
         <div class="guide-intro-dialog-content">
             <el-carousel class="carousel-list" height="100%" arrow="always" :interval="2000">
                 <el-carousel-item v-for="(item, index) in imageList" :key="index">
-                    <el-image :src="item.s_pic" fit="contain" />
+                    <img :src="item.s_pic" alt="" />
                 </el-carousel-item>
             </el-carousel>
         </div>