1、修改横线高度

lib/common/gaps.dart

@@ -40,7 +40,7 @@ const Widget vGap70 = SizedBox(height: 70.0);
 const Widget vGap80 = SizedBox(height: 80.0);
 const Widget vGap150 = SizedBox(height: 150.0);
 
-const Widget line = Divider();
+const Widget line = Divider(height: 1.0);
 
 const Widget vLine = SizedBox(
   width: 0.6,