body {
    margin: 0 auto;
    width: 100%;
    height: 100%;
    min-height: 100vh;
    max-width: 580px;
  }
  
  
  .kf {
    position: fixed;
    top: 230px;
    right: 0px;
    z-index: cover;
  }
  
  
  .kf .floatright {
    width: 80px !important;
    height: auto !important;
  }
  
  
  .space {
    height: .3rem;
    background-color: #ffd6dd;
  }
  
  .header {
    position: fixed;
    z-index: 99;
    top: 0;
    width: 100%;
    max-width: 580px;
  }
  
  .header>img {
    width: 100%;
    display: block;
  }
  
  .footer>img {
    width: 100%;
    display: block;
  }
  
  .content img {
    width: 100%;
    margin-top:-16px;
  }
  
  .footer {
    position: fixed;
    bottom: 0;
    width: 100%;
    z-index: 99;
    max-width: 580px;
  }
  
  #qrcode {
    text-align: center;
    background-color: #fff;
    border-radius: 10px;
    width: 116px;
    height: 116px;
    margin: auto;
    position: absolute;
    top: 230px;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
    -moz-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    -o-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
  }
  
  .out-mask {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 50;
  }
  
  .out-panel {
    position: absolute;
    left: 0;
    right: 0;
    top: 25%;
    width: 80%;
    margin: 0 auto;
    max-width: 660px;
    padding: 15px 15px 0;
  }
  
  .out-panel .out-close {
    position: absolute;
    right: 20px;
    top: -35px;
    width: 25px;
  }
  
  .out-panel .out-bg {
    width: 100%;
  }
  
  .out-panel .pup-btn {
    position: absolute;
    display: block;
    width: 50%;
    height: 20%;
    bottom: -60px;
    left: 25%;
  }
  
  .out-panel .pup-btn {
    background-size: 100% 100%;
    background-repeat: no-repeat;
  }
  

  img {
    pointer-events: none;
  }

  .empty {
    height: 1.6rem;
    width: 100%;
    background-color: #ffd6dd;
  }

  @media (min-width: 768px) {
    .empty {height: 2rem;}
  }