* {
  margin: 0;
  padding: 0;
  outline: none;
}
html,
body {
  font-family: "-apple-system", "BlinkMacSystemFont", "Helvetica Neue", "PingFang SC", "Source Han Sans SC", "Noto Sans CJK SC", "WenQuanYi Micro Hei", "sans-serif", "Arial", "Microsoft YaHei";
  font-size: 14px;
  min-height: 100%;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  width: 100%;
  min-width: 1280px;
  overflow-x: hidden;
}
html {
  font-size: 62.5%;
  /*10 梅 16 脳 100% = 62.5%*/
}
.fixed {
  position: fixed;
  top: 0;
  left: 0;
}
li {
  list-style: none;
}
a {
  text-decoration: none;
}
table {
  border-collapse: collapse;
  border-spacing: 0;
}
img {
  vertical-align: bottom;
  border: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  -moz-backface-visibility: hidden;
  -ms-backface-visibility: hidden;
}
b {
  display: block;
  font-weight: normal;
}
em {
  font-style: normal;
  display: block;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  font-size: 100%;
  font-weight: 400;
}
.afterClear:after {
  content: "";
  display: block;
  width: 0;
  height: 0;
  float: none;
  clear: both;
}
.clear {
  display: block;
  width: 0;
  height: 0;
  float: none;
  clear: both;
}
.ky {
  visibility: hidden;
}
@font-face {
  font-family: "DIN-BOLD";
  src: url(/static/index/fonts/DIN-BOLD.OTF);
}
@font-face {
  font-family: "DIN-REGULAR";
  src: url(/static/index/fonts/DIN-REGULAR.OTF);
}
@font-face {
  font-family: "din-alternate-bold";
  src: url(/static/index/fonts/din-alternate-bold.ttf);
}
@font-face {
  font-family: "DINOT-CONDBOLD";
  src: url(/static/index/fonts/DINOT-CONDBOLD.OTF);
}
@-webkit-keyframes shake-lr {
  0%,
  100% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
    -webkit-transform-origin: 50% 50%;
    transform-origin: 50% 50%;
  }
  20% {
    -webkit-transform: rotate(8deg);
    transform: rotate(8deg);
  }
  40% {
    -webkit-transform: rotate(-10deg);
    transform: rotate(-10deg);
  }
  60% {
    -webkit-transform: rotate(10deg);
    transform: rotate(10deg);
  }
  80% {
    -webkit-transform: rotate(-8deg);
    transform: rotate(-8deg);
  }
}
@keyframes shake-lr {
  0%,
  100% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
    -webkit-transform-origin: 50% 50%;
    transform-origin: 50% 50%;
  }
  20% {
    -webkit-transform: rotate(8deg);
    transform: rotate(8deg);
  }
  40% {
    -webkit-transform: rotate(-10deg);
    transform: rotate(-10deg);
  }
  60% {
    -webkit-transform: rotate(10deg);
    transform: rotate(10deg);
  }
  80% {
    -webkit-transform: rotate(-8deg);
    transform: rotate(-8deg);
  }
}
@-webkit-keyframes fadeInLeft {
  0% {
    opacity: 0;
    -webkit-transform: translate3d(-100px, 0, 0);
    transform: translate3d(-100px, 0, 0);
  }
  100% {
    opacity: 1;
    -webkit-transform: none;
    transform: none;
  }
}
@keyframes fadeInLeft {
  0% {
    opacity: 0;
    -webkit-transform: translate3d(-100px, 0, 0);
    -ms-transform: translate3d(-100px, 0, 0);
    transform: translate3d(-100px, 0, 0);
  }
  100% {
    opacity: 1;
    -webkit-transform: none;
    -ms-transform: none;
    transform: none;
  }
}
.fadeInLeft {
  -webkit-animation-name: fadeInLeft;
  animation-name: fadeInLeft;
}
@-webkit-keyframes fadeInRight {
  0% {
    opacity: 0;
    -webkit-transform: translate3d(100px, 0, 0);
    transform: translate3d(100px, 0, 0);
  }
  100% {
    opacity: 1;
    -webkit-transform: none;
    transform: none;
  }
}
@keyframes fadeInRight {
  0% {
    opacity: 0;
    -webkit-transform: translate3d(100px, 0, 0);
    -ms-transform: translate3d(100px, 0, 0);
    transform: translate3d(100px, 0, 0);
  }
  100% {
    opacity: 1;
    -webkit-transform: none;
    -ms-transform: none;
    transform: none;
  }
}
.fadeInRight {
  -webkit-animation-name: fadeInRight;
  animation-name: fadeInRight;
}
@-webkit-keyframes fadeInUp {
  0% {
    opacity: 0;
    -webkit-transform: translate3d(0, 100px, 0);
    transform: translate3d(0, 100px, 0);
  }
  100% {
    opacity: 1;
    -webkit-transform: none;
    transform: none;
  }
}
@keyframes fadeInUp {
  0% {
    opacity: 0;
    -webkit-transform: translate3d(0, 100px, 0);
    -ms-transform: translate3d(0, 100px, 0);
    transform: translate3d(0, 100px, 0);
  }
  100% {
    opacity: 1;
    -webkit-transform: none;
    -ms-transform: none;
    transform: none;
  }
}
.fadeInUp {
  -webkit-animation-name: fadeInUp;
  animation-name: fadeInUp;
}
.return {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: white;
  position: fixed;
  right: 6%;
  bottom: 20%;
  z-index: 100000000;
  cursor: pointer;
      box-shadow: 0px 0px 15px 0px rgb(188 188 188 / 30%);
}
.return img {
  display: block;
  width: 20px;
  margin: 0 auto;
  margin-top: 17px;
}
<!--0.0001828670501709-->