字体渐变 https://www.zhangxinxu.com/study/201104/css3-text-gradient-2.html
隐藏浏览器滚动条 https://blog.csdn.net/qq_2842405070/article/details/70238829
grid布局 http://www.ruanyifeng.com/blog/2019/03/grid-layout-tutorial.html
使用vant popup容器高度为基数时,字体模糊。解决办法:line-height: 1.6(为偶数)