body {
  background: #170B46;
}
@-webkit-keyframes bounceInDown {
  from,
  60%,
  75%,
  90%,
  to {
    -webkit-animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
    animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
    visibility: visible;
  }
  0% {
    opacity: 0;
    -webkit-transform: translate3d(0, -20rem, 0);
    transform: translate3d(0, -20rem, 0);
    visibility: visible;
  }
  60% {
    opacity: 1;
    -webkit-transform: translate3d(0, 0.5rem, 0);
    transform: translate3d(0, 0.5rem, 0);
    visibility: visible;
  }
  75% {
    -webkit-transform: translate3d(0, -0.2rem, 0);
    transform: translate3d(0, -0.2rem, 0);
    visibility: visible;
  }
  90% {
    -webkit-transform: translate3d(0, 0.1rem, 0);
    transform: translate3d(0, 0.1rem, 0);
    visibility: visible;
  }
  to {
    -webkit-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
    visibility: visible;
  }
}
@keyframes bounceInDown {
  from,
  60%,
  75%,
  90%,
  to {
    -webkit-animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
    animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
    visibility: visible;
  }
  0% {
    opacity: 0;
    -webkit-transform: translate3d(0, -20rem, 0);
    transform: translate3d(0, -20rem, 0);
    visibility: visible;
  }
  60% {
    opacity: 1;
    -webkit-transform: translate3d(0, 0.5rem, 0);
    transform: translate3d(0, 0.5rem, 0);
    visibility: visible;
  }
  75% {
    -webkit-transform: translate3d(0, -0.2rem, 0);
    transform: translate3d(0, -0.2rem, 0);
    visibility: visible;
  }
  90% {
    -webkit-transform: translate3d(0, 0.1rem, 0);
    transform: translate3d(0, 0.1rem, 0);
    visibility: visible;
  }
  to {
    -webkit-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
    visibility: visible;
  }
}
@keyframes opc {
  0% {
    opacity: 1;
  }
  20% {
    opacity: 0;
  }
  40% {
    opacity: 1;
  }
  100% {
    opacity: 1;
  }
}
@-webkit-keyframes opc {
  0% {
    opacity: 1;
  }
  20% {
    opacity: 0;
  }
  40% {
    opacity: 1;
  }
  100% {
    opacity: 1;
  }
}
.index {
  position: relative;
  width: 10rem;
  margin: 0 auto;
}
.index .obs-bg {
  display: block;
  width: 10rem;
  margin: 0 auto;
  height: 17.8rem;
  position: absolute;
  top: -0.7rem;
  left: 0;
}
.index .obs-tit {
  display: block;
  width: 4.95rem;
  position: absolute;
  top: 0.5rem;
  left: 50%;
  transform: translate(-50%, 0%);
  -webkit-transform: translate(-50%, 0%);
}
.index .star1 {
  display: block;
  width: 0.4rem;
  position: absolute;
  top: 2.3rem;
  left: 2.65rem;
  animation: opc 2s linear infinite;
  -webkit-animation: opc 2s linear infinite;
}
.index .star2 {
  display: block;
  width: 0.25rem;
  position: absolute;
  top: 2.7rem;
  left: 3rem;
  animation: opc 2s linear infinite;
  -webkit-animation: opc 2s linear infinite;
}
.index .star3 {
  display: block;
  width: 0.4rem;
  position: absolute;
  top: 2.5rem;
  right: 2.8rem;
  animation: opc 2s linear infinite;
  -webkit-animation: opc 2s linear infinite;
}
.index .star4 {
  display: block;
  width: 0.25rem;
  position: absolute;
  top: 2.25rem;
  right: 2.5rem;
  animation: opc 2s linear infinite;
  -webkit-animation: opc 2s linear infinite;
}
.index .btn {
  display: block;
  width: 7.8rem;
  position: absolute;
  left: 50%;
  margin-left: -3.9rem;
  visibility: hidden;
}
.index .btn1 {
  top: 5.6rem;
  animation: bounceInDown 1.4s;
  -webkit-animation: bounceInDown 1.4s;
  animation-fill-mode: forwards;
  -webkit-animation-fill-mode: forwards;
}
.index .btn2 {
  top: 8.2rem;
  animation: bounceInDown 1.4s;
  -webkit-animation: bounceInDown 1.4s;
  animation-delay: 0.3s;
  -webkit-animation-delay: 0.3s;
  animation-fill-mode: forwards;
  -webkit-animation-fill-mode: forwards;
}
.index .btn3 {
  top: 10.8rem;
  -webkit-animation: bounceInDown 1.4s;
  animation: bounceInDown 1.4s;
  -webkit-animation-delay: 0.6s;
  animation-delay: 0.6s;
  -webkit-animation-fill-mode: forwards;
  animation-fill-mode: forwards;
}
.index .logo {
  display: block;
  width: 2.15rem;
  position: absolute;
  top: 14rem;
  left: 50%;
  margin-left: -1.075rem;
}
.index1 {
  padding: 0 0.32rem;
}
.index1 .white-tit {
  color: #FFFFFF;
  font-size: 0.45rem;
  margin-top: 0.35rem;
}
.index1 .s-tit {
  color: #B3B3B3;
  font-size: 0.45rem;
}
.index1 .obs-line-txt {
  color: #B3B3B3;
  font-size: 0.37rem;
  padding: 0.2rem 0rem;
}
.index1 .white {
  color: #fff;
  font-weight: bold;
}
.index1 .green {
  color: #2BE1B0;
}
.index1 .obg-btn {
  display: block;
  width: 7.8rem;
  margin: 0 auto;
}
.index1 .index1-btn1 {
  margin-top: 0.7rem;
  position: relative;
  top: 0.1rem;
}
.index1 .gif {
  display: block;
  width: 9.07rem;
  margin: 0 auto;
  border-radius: 0.21rem;
  margin: 0.3rem 0;
}
.index2 {
  padding: 0 0.32rem 1.2rem 0.32rem;
}
.index2 .white-tit {
  color: #FFFFFF;
  font-size: 0.45rem;
  margin-top: 0.35rem;
}
.index2 .s-tit {
  color: #B3B3B3;
  font-size: 0.45rem;
  padding: 0.4rem 0 0.2rem 0;
}
.index2 .obs-line-txt {
  color: #B3B3B3;
  font-size: 0.37rem;
  padding: 0.2rem 0rem;
}
.index2 .white {
  color: #fff;
  font-weight: bold;
}
.index2 .green {
  color: #2BE1B0;
}
.index2 .obg-btn {
  display: block;
  width: 7.8rem;
  margin: 0 auto;
}
.index2 .index1-btn1 {
  margin-top: 0.7rem;
  position: relative;
  top: 0.1rem;
}
.index2 .gif {
  display: block;
  width: 9.07rem;
  margin: 0 auto;
  border-radius: 0.21rem;
  margin: 0.3rem 0;
}
.index3 {
  padding: 0 0.32rem 1.2rem 0.32rem;
}
.index3 .white-tit {
  color: #FFFFFF;
  font-size: 0.45rem;
  margin-top: 0.35rem;
}
.index3 .s-tit {
  color: #B3B3B3;
  font-size: 0.45rem;
  padding: 0.4rem 0 0.2rem 0;
}
.index3 .obs-line-txt {
  color: #B3B3B3;
  font-size: 0.37rem;
  padding: 0.2rem 0rem;
}
.index3 .white {
  color: #fff;
  font-weight: bold;
}
.index3 .green {
  color: #2BE1B0;
}
.index3 .green2 {
  color: #2BE1B0;
  line-height: 0.7rem;
  font-size: 0.32rem;
}
.index3 .obg-btn {
  display: block;
  width: 7.8rem;
  margin: 0 auto;
}
.index3 .index1-btn1 {
  margin-top: 0.7rem;
  position: relative;
  top: 0.1rem;
}
.index3 .gif {
  display: block;
  width: 9.07rem;
  margin: 0 auto;
  border-radius: 0.21rem;
  margin: 0.3rem 0;
}