#app{font-family:Helvetica Neue,Helvetica,PingFang SC,Hiragino Sans GB,Microsoft YaHei,微软雅黑,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:#333;background-color:#f5f5f5;min-height:100vh}*{box-sizing:border-box;margin:0;padding:0}a{text-decoration:none;color:inherit}li,ul{list-style:none}