.clearfix::after {
  display: block;
  clear: both;
  content: "";
}
header {
  width: 100%;
  height: 0.4rem;
  background: rgba(255, 255, 255, 0.3);
  position: fixed;
  top: 0;
  z-index: 10000;
}

header .h-span {
  height: 0.4rem;
  font-size: 0.21rem;
  color: #ffffff;
  line-height: 0.4rem;
  width: 1.5rem;
  float: left;
}

header .h-a {
  text-decoration: none;
  color: #ffffff;
  display: inline-block;
  text-align: center;
  width: 100%;
}
.m-container {
  min-height: 100%;

  padding-bottom: 1.2rem;
  box-sizing: border-box;
}

.m-footer {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  top: -1.2rem;
  height: 1.2rem;
  background: #000;
}

.iconBox {
  width: 3.28rem;
  height: 0.46rem;
  margin: 0 auto;
  padding: 0.1rem 0;
  display: flex;
  justify-content: center;
}

.iconItem {
  width: 0.46rem;
  height: 0.46rem;
  margin: 0 0.18rem;
  background: rgba(255, 255, 255, 0.8);
}
.m-footer .copyright {
  font-size: 0.16rem;
  color: #fff;
  text-align: center;
  line-height: 1;
}
.iconItem--weixin {
  position: relative;
  cursor: pointer;
}
.weixin-qrcode {
  display: none;
  width: 4rem;
  height: 4rem;
}
.iconItem--weixin.active .weixin-qrcode {
  display: block;
  position: absolute;
  bottom: 0.88rem;
  z-index: 100000;
  left: -1.66rem;
  text-align: center;
}
.iconItem--weixin.active .weixin-qrcode:after {
  content: "";
  display: inline-block;
  position: absolute;
  top: 100%;
  width: 0;
  left: 1.9rem;
  border: 0.1rem solid transparent;
  border-top-color: #fff;
}
.iconItem--weixin .weixin-qrcode .qrcode-img {
  width: 100%;
  height: 100%;
  margin: 0;
  border-radius: 5px;
}
.iconItem--weixin.active .weixin-qrcode__mask {
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  z-index: 1;
}