fix bug

apps/exams/Tpl/default/Index/examsroom_w3g.html

@@ -24,9 +24,6 @@
   .answer-card dd a { border:1px solid rgba(163,228,96,1); color: #65C000; background: none; }
   .exam-header .the-stop li { background: #A3E460; font-weight: 600; font-size: 16px; border: none; }
   .exam-header .the-stop .li {  font-weight: 600; font-size: 16px; border: none; border: 1px solid #fff; background: none; }
-  .payBg {
-      background:rgba(245,166,35,1);
-  }
 </style>
 <div class="cover"></div>
 <div class="min-height-wrap">

apps/exams/_static/js/public_exam_3g.js

@@ -61,7 +61,7 @@ $(function() {
         if (limit > 0 && question_num >= limit) {
             let page = $("#ex" + question_num + ' .next')
             page.removeClass('next_question');
-            page.addClass('payBg')
+            page.attr({'style': 'background:rgba(245,166,35,1);'});
             page.text('去支付');
         }