site: update home page font family

site/theme/static/home.less

@@ -1,13 +1,13 @@
 @home-bg-color: #2f54eb;
 @home-text-color: #314659;
+
 .home-page-wrapper {
   width: 100%;
   padding: 0;
   overflow: hidden;
   position: relative; // will-change: transform;
   color: @home-text-color;
-  font-family: 'SF UI Display', "Helvetica Neue For Number", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
-  -webkit-font-smoothing: antialiased;
+  font-family: Avenir, @font-family;
   .page {
     width: 100%;
     max-width: 1200px;
@@ -74,7 +74,7 @@
       line-height: 76px;
       margin: 8px 0 28px;
       letter-spacing: 0;
-      font-family: Avenir, "Helvetica Neue For Number", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
+      font-family: Avenir, @font-family;
     }
     p {
       font-size: 20px;