.header {
  width: 1200px;
  padding-top: 20px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  color: #ff5d00;
  font-size: 14px;
}
.header span {
  display: inline-block;
  padding: 6px 15px;
  background: #ff792a;
  color: #ffffff;
  border-radius: 35px;
}
.tier {
  width: 1240px;
  margin: 100px auto;
  display: flex;
  justify-content: space-between;
  position: relative;
  font-weight: 100;
}
.title {
  font-size: 70px;
  margin-bottom: 20px;
  padding-top: 50px;
}
.descr {
  font-size: 26px;
  margin: 15px 0;
}
.descr1 {
  font-size: 32px;
  margin: 15px 0;
}
.version {
  color: #b4b4b4;
}
.logo {
  /* padding-left: 60px; */
  line-height: 77px;
}
.logo::before {
  content: url(../img/logo1.png);
  width: 77px;
  height: 77px;
  float: left;
  margin-right: 10px;
}
.btnPrent {
  text-align: center;
  margin-top: 40px !important;
  display: flex;
  justify-content: space-around;
}
.btn {
  display: inline-block;
  width: 160px;
  height: 46px;
  line-height: 46px;
  margin: 0 auto;
  background: #ff792a;
  text-align: center;
  border-radius: 30px;
  color: #ffffff;
  box-shadow: 0 0 3px #ff792a;
  position: relative;
}
.wap .title {
  padding-top: 30px;
}
.ipad .title {
  padding-top: 20px;
}
.a::before {
  content: url(../img/a.png);
  display: inline-block;
  position: absolute;
  padding-top: 5px;
  left: 25px;
}
.i::before {
  content: url(../img/i.png);
  display: inline-block;
  position: absolute;
  padding-top: 5px;
  left: 25px;
}
.foot {
  height: 92px;
  background: #ff9252;
  color: #ffffff;
  padding-top: 30px;
  font-size: 14px;
}
.foot ul {
  display: flex;
  width: 620px;
  margin: 0 auto;
  justify-content: space-between;
  color: #ffffff;
  margin-bottom: 5px;
}
.foot p {
  text-align: center;
}