* {
    margin: 0;
    padding: 0;
  }
  html {
    font-family: PingFangSC-Medium,PingFang SC,"Helvetica Neue",Helvetica,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","微软雅黑",Arial,sans-serif;
  }
  ul{
    list-style:none;
  }
  a{
    text-decoration:none; color:#333;
  }
  b, i,a {
    display:inline-block; font-weight:normal; font-style:normal;
  }
  button, input{
    border:none; outline:none;
  }
  
  .fl{
    float:left;
  }
  .fr {
      float: right;
  }
  .bs{
    box-sizing:border-box;
  }
  .cl {
    background-color: #fff;
  }
  .clearfix:after { 
  content:"";
  display:block;
  height:0;
  clear:both;
  visibility:hidden;
  }
  .font_12 {
    font-size: 0.12rem;
  }
  .font_14 {
    font-size: 0.14rem;
  }
  .font_16 {
    font-size: 0.16rem;
  }
  .font_18 {
    font-size: 0.18rem;
  }
  .font_20 {
    font-size: 0.2rem;
  }
  .font_26 {
    font-size: 0.26rem;
  }
  .font_30 {
    font-size: 0.3rem;
  }
  .font_36 {
    font-size: 0.36rem;
  }
  .font_40 {
    font-size: 0.4rem;
  }
  .font_50 {
    font-size: 0.5rem;
  }
  .font_60 {
    font-size: 0.6rem;
  }
  .font_75 {
    font-size: 0.75rem;
  }
  .font_100 {
    font-size: 1rem;
  }
  .gray {
    color: #999999;
  }