ul,li,h1,h2,h3,h4,h5,h6,b,i{margin:0; padding:0; font-style:normal; font-weight:normal;}
body{
    padding:0;
    max-width:640px;
    margin:0 auto;
    list-style: none;
    font-family: "Arial","Microsoft YaHei";
}
.hint{
  color: yellow;
  font-size: 16px;
  width: 100%;
  text-align: center;
  background-color: black;
  opacity: 0.7;
}
.hint:empty {
  display: none;
}
@media (min-width: 768px) {
  .hint {
    font-size: 22px;
  }
}

.download img {
    width: 100%;
    display: block;
}

.wxtip {
    background: rgba(0, 0, 0, 0.5);
    text-align: center;
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    z-index: 999;
    display: none;
}

.wechattip-icon {
    width: 100%;
    height: 100%;
    background: url('../img/wechat/wechat_bg.png') no-repeat;
    background-size: 100% 100%;
    display: block;
}

.bottom_img {
    position: fixed;
    bottom: 0;
    max-width:640px;
    z-index: 9999999;
}
.prompt_img, .code_img {
  width: 100%;
  position: absolute;
  top: 11.5%;
  max-width:640px;
  z-index: 999999;
}
.prompt_img_new {
  top: 24%;
}

.code_img {
  top: 28%;
  width: 50%;
  left: 50%;
  transform: translateX(-50%);
}
.access_btn_img {
  width: 60%;
  position: absolute;
  top: 6rem;
  left: 50%;
  margin-left: -30%;
  max-width:640px;
}
.access_kf_img {
  width: 60%;
  position: absolute;
  top: 12rem;
  left: 50%;
  margin-left: -30%;
  max-width:640px;
}

.download {
  position: relative;
  left: 0;
  top: 0;
}

.download .bg_img {
  pointer-events: none;
}

#code_bg_img {
  display: none;
}

.box {
  position: relative;
  left: 0;
  top: 0;
}

.kefu {
  position: absolute;
  width: 100px;
  height: 100px;
  top: 0;
  right: 0;
  z-index: 2000;
}
.privacy {
  width: 7rem;
  position: absolute;
  left: 50%;
  bottom: 4px;
  margin-left: -3.5rem;
}
.test_flight_div {
  width: 70%;
  position: absolute;
  top: 22.2%;
  left: 50%;
  margin-left: -35%;
}
.download_img_div{
  width: 70%;
  position: absolute;
  top: 39%;
  left: 50%;
  margin-left: -35%;
}