样式优化

src/css/qaPage.less

@@ -38,6 +38,7 @@
   color: #333;
   resize: none;
   line-height: 18px;
+  font-family: "Microsoft Yahei", Verdana, Simsun, "Segoe UI Web Light", "Segoe UI Light", "Segoe UI Web Regular", "Segoe UI", "Segoe UI Symbol", "Helvetica Neue", Arial;
   // outline: none;
   padding: 10px;
   background: #F7F8FA;