.body_max {
  max-width: 640px;
  margin: 0 auto;
  min-width: 320px;
}
div {
  box-sizing: border-box;
}
.mobile_header {
  position: relative;
  width: 100%;
  box-shadow: inset 0px -1px 0px 0px #cccccc;
  text-align: center;
  padding: 0.28rem 0 0.28rem 0;
}
.mobile_header span {
  display: inline-block;
  margin: 0 auto;
  width: 2.5rem;
  height: 2.5rem;
}
.mobile_header span img {
  width: 100%;
}
.mobile_header .right-icon {
  position: absolute;
  top: 0.9rem;
  right: 1.25rem;
  width: 1.3rem;
}
.mobile_header .right-icon img {
  width: 100%;
}
footer {
  text-align: center;
  width: 100%;
  background-color: #f4f4f4;
  padding: 0.625rem 0 0.625rem 0;
  font-size: 10px;
  line-height: 20px;
  color: #999999;
}
footer a {
  color: #131313;
  text-decoration: none;
}
.sidebar {
  width: 8.18rem;
  height: 100vh;
  background: white;
  position: fixed;
  top: 0;
  right: 0;
  z-index: 1000;
  transition: 0.5s;
  transform: translateX(10.18rem);
}
.sidebar div {
  padding: 15px 15px 0 0;
  text-align: right;
}
.sidebar div img {
  width: 20px;
}
.sidebar .bannertar ul {
  margin-top: 7rem;
}
.sidebar .bannertar ul li {
  margin-bottom: 2.4rem;
  list-style: none;
  text-align: left;
  font-size: 18px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 16px;
}
.sidebar .bannertar ul li a {
  color: #313131;
  text-decoration: none;
}
.visible {
  transform: translateX(0);
}