帮助中心样式调整

@@ -23,13 +23,10 @@ var problemBox = function() {
         $problemBox.find('.a-area').html(ask);
         $problemBox.find('.q-area').html(answer);
         $problemBox.show();
-
-        $('body').css({overflow: 'hidden'});
     });
 
     $('.problem-box .close, .problem-box .mark').on('click', function() {
         $problemBox.hide();
-        $('body').css({overflow: 'auto'});
     });
 };
 

@@ -64,12 +64,9 @@ if (keywords) {
     });
 }
 
-
 if (!$cate.hasClass('big-category')) {
     parentID = $cate.data('parentId');
 
     $('.parentId-' + parentID).show();
     $('.cateId-' + parentID).find('.icon').removeClass('plus').addClass('minus');
 }
-
-$('.center-content').css('border-top-color', '#fff');

@@ -122,7 +122,7 @@
             content: "";
             width: 18px;
             height: 18px;
-            background: url("/help/a.png") no-repeat;
+            background: url("/help/q.png") no-repeat;
             position: absolute;
             left: 0;
             top: 2px;
@@ -132,7 +132,7 @@
             content: "";
             width: 18px;
             height: 18px;
-            background: url("/help/q.png") no-repeat;
+            background: url("/help/a.png") no-repeat;
             position: absolute;
             left: 0;
         }

@@ -184,11 +184,11 @@
         }
 
         .a-area:before {
-            background: url("/help/a.png") no-repeat;
+            background: url("/help/q.png") no-repeat;
         }
 
         .q-area:before {
-            background: url("/help/q.png") no-repeat;
+            background: url("/help/a.png") no-repeat;
         }
 
         .iconfont {