perf：优化样式

pc/src/page/home2/style.scss

@@ -230,9 +230,13 @@
       padding-right: 30px;
       border-right: 2px solid #909090;
       margin-right: 30px;
-      &.active {
+      cursor: pointer;
+      &.active, &:hover {
         color: #202020;
       }
+      &:last-child {
+        border-right: none;
+      }
     }
   }
   .solution-content {