#app{font-family:Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:#2c3e50;height:100%}body,html{height:100%}body,html{margin:0;padding:0}body{font-family:Helvetica Neue,Helvetica,PingFang SC,Hiragino Sans GB,Microsoft YaHei,微软雅黑,Arial,sans-serif}.container{padding:20px}.text-center{text-align:center}.mb-20{margin-bottom:20px}.mt-20{margin-top:20px}.page-title{font-size:22px;font-weight:700;margin-bottom:20px;color:#409eff}