body {
  /* background-image: url("../images/appBg.png");
    background-repeat: no-repeat;
    background-size: 100% 100%; */
}
.title_nav {
  position: absolute;
}
.box img {
  width: 100%;
}
.box .QRcode {
  position: absolute;
  padding: 10px;
  background-color: #fff;
  border-radius: 5px;
  top: 43%;
  left: 50%;
  transform: translateX(-55px);
}
.box .QRcode img {
  width: 90px;
  height: 90px;
}
.btn {
  position: absolute;
  background-color: #416EFD;
  width: 65%;
  height: 46px;
  line-height: 46px;
  border-radius: 23px;
  text-align: center;
  margin: 0 auto;
  color: #fff;
  font-size: 20px;
}
.btn img {
  width: 18px;
  margin-top: 12px;
}
.apple {
  left: 50%;
  top: 78%;
  transform: translate(-50%, -50%);
  /* 50%为自身尺寸的一半 */
}
.google {
  left: 50%;
  top: 88%;
  transform: translate(-50%, -50%);
  /* 50%为自身尺寸的一半 */
}
/* 弹层 */
.container {
  width: 100%;
  margin: 0px auto;
  text-align: center;
}
.container #myModel {
  position: fixed;
  top: 0;
  left: 0;
  display: none;
  background-color: rgba(9, 9, 9, 0.7);
  width: 100%;
  height: 100%;
  z-index: 1000;
}
.container #myModel .box {
  position: absolute;
  top: 0px;
  width: 100%;
  height: 50px;
}
.container #myModel .box img {
  width: 71%;
  position: absolute;
  right: 40px;
  top: 41px;
}