fix(style): 修复大会员落地页按钮样式

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

@@ -1306,11 +1306,12 @@
 }
 .btn-kong-new{
   position: absolute;
-    bottom: 28%;
-    left: 43.3%;
-    z-index: 3;
-    width: 218px;
-    margin: 0;
+  bottom: 28%;
+  left: 50%;
+  z-index: 3;
+  width: 218px;
+  transform: translateX(-50%);
+  margin: 0;
 }
 .btn-kong-new.subpage-button:hover{
   transform: translateX(-50%) scale(1.2);