手机端样式调整；

src/views/components/HistoryRecord.vue

@@ -346,7 +346,7 @@
         >
           <img
             class="mobile-bottom-announcement"
-            src="https://d31zlh4on95l9h.cloudfront.net/images/c51c7fbb68671729801fb10d65bd7789.png"
+            src="https://d31zlh4on95l9h.cloudfront.net/images/172be9b9c4d936f2f6b182ef7a4bed10.png"
             alt="icon"
           />
           <div class="mobile-bottom-text">公告</div>
@@ -358,7 +358,7 @@
         >
           <img
             class="mobile-bottom-feedback"
-            src="https://d31zlh4on95l9h.cloudfront.net/images/41d6e25c19466718d462bcee2f050140.png"
+            src="	https://d31zlh4on95l9h.cloudfront.net/images/ed88a0a7095c3cd1e0b51ffcca7f4068.png"
             alt="icon"
           />
           <div class="mobile-bottom-text">用户反馈</div>

src/views/homePage.vue

@@ -1055,7 +1055,7 @@ onUnmounted(() => {
           </div>
           <div class="backToHomeBtn" @click="backToHome()">
             <img
-              src="https://d31zlh4on95l9h.cloudfront.net/images/d8b388e461423f79087ddbe016002217.png"
+              src="https://d31zlh4on95l9h.cloudfront.net/images/9cbc5b2eb2327bd04d015c19d8c3f1f9.png"
               alt="返回首页"
               class="backImg"
             />
@@ -1653,7 +1653,7 @@ body {
 }
 
 .backImg {
-  width: 100%;
+  width: 60%;
   height: auto;
 }