💄 ui: change font to YaHei

Author: huangyz0918

_sass/moving.scss

@@ -2,8 +2,7 @@
 
 // Define defaults for each variable.
 
-$base-font-family: "Bitter", "Times New Roman", "FangSong", "仿宋", STFangSong,
-  "华文仿宋", serif;
+$base-font-family: "Bitter", 'Hiragino Sans GB', 'Microsoft Yahei', '微软雅黑', "Bitter", sans-serif;
 $base-font-size: 18px !default;
 $base-font-weight: 400 !default;
 $small-font-size: $base-font-size * 0.85 !default;