修复轮播图异常的问题

pages/index/index.wxss

@@ -8,6 +8,7 @@
 .banner-swiper {
   width: 100%;
   height: 380rpx;
+  flex-shrink: 0;
 }
 
 .banner-item {

utils/mockData.js

@@ -233,14 +233,14 @@ const mockData = {
       id: 2,
       title: "AI智能诊断",
       description: "专业AI医生为您提供初步诊断",
-      image: "/images/banner1.png",
+      image: "/images/banner2.png",
       video: "/videos/ai_diagnosis.mp4"
     },
     {
       id: 3,
       title: "药品比价服务",
       description: "多家医院药品价格对比",
-      image: "/images/banner1.png",
+      image: "/images/banner3.png",
       video: "/videos/price_comparison.mp4"
     }
   ]