基本尺寸修改

 .coupon-area-page {
-    max-width: 640px;
+    max-width: 750px;
     overflow: hidden;
 }
 

@@ -5,7 +5,7 @@
     margin-left: -320px;
     width: 100%;
     height: 100px;
-    max-width: 640px;
+    max-width: 750px;
     padding-top: 20px;
     box-sizing: border-box;
     background: #fff;

@@ -28,7 +28,7 @@
     margin-left: auto;
     margin-right: auto;
     width: 100%;
-    max-width: 640px;
+    max-width: 750px;
     overflow: hidden;
 }
 

@@ -33,7 +33,7 @@
             border-top: 1px solid #ccc;
             left: 0;
             top: 80px;
-            width: 640px;
+            width: 750px;
             height: 0;
         }
     }

@@ -133,7 +133,7 @@
         &.avatar-clone {
             margin-top: 0;
             position: fixed;
-            width: 640px;
+            width: 750px;
             padding-bottom: 30px;
             z-index: 9;
             background: #000;

@@ -56,7 +56,7 @@ a {
     position: relative;
     margin-right: auto;
     margin-left: auto;
-    max-width: 640px;
+    max-width: 750px;
     width: 100%;
 }
 

@@ -699,7 +699,7 @@ $basicBtnC: #eb0313;
         z-index: 2;
         box-sizing: border-box;
         padding: 20px 28px;
-        width: 640px;
+        width: 750px;
         height: 120px;
         border-top: 1px solid $borderC;
         background-color: #fff;

 .break-code-page {
     overflow: hidden;
     margin: 0 auto;
-    max-width: 640px;
+    max-width: 750px;
 
     .banner {
-        width: 640px;
+        width: 750px;
 
         img {
             width: 100%;