feat: 副标题改宋体

card/assets/styles/card-preview.scss

@@ -433,7 +433,6 @@
   }
   &-subtitle {
     height: 44px;
-    font-family: $--font-family;
     font-size: 14px;
     overflow: hidden;
     white-space: normal;

card/assets/styles/card-temp.css

@@ -362,8 +362,6 @@
 }
 .card-head-subtitle {
   height: 44px;
-  font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB",
-    "Microsoft YaHei", Arial, sans-serif;
   font-size: 14px;
   overflow: hidden;
   white-space: normal;