feat: 修复按钮偏移问题

src/web/staticres/big-member/css/page_index.css

@@ -1307,8 +1307,10 @@
 .btn-kong-new{
   position: absolute;
     bottom: 28%;
-    left: calc(56% - 228px);
+    left: 50%;
     z-index: 3;
     width: 218px;
+    transform: translateX(-50%);
+    margin: 0;
 }
 /* E 1.18新增 */