.banner {
  overflow: hidden;
  position: relative;
  color: white;
}
.banner .banner_bg {
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
     object-fit: cover;
}
.banner .banner_txt {
  position: absolute;
  left: 50%;
  top: 50%;
  -webkit-transform: translate(-50%, -50%);
      -ms-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
}
.banner .banner_txt > * {
  opacity: 0;
  -webkit-transform: translateY(25px);
      -ms-transform: translateY(25px);
          transform: translateY(25px);
  -webkit-transition: all 1s;
  transition: all 1s;
}
.banner .banner_txt > *:nth-child(1) {
  -webkit-transition-delay: 0.4s;
          transition-delay: 0.4s;
}
.banner .banner_txt > *:nth-child(2) {
  -webkit-transition-delay: 0.6s;
          transition-delay: 0.6s;
}
.banner .banner_txt > *:nth-child(3) {
  -webkit-transition-delay: 0.8s;
          transition-delay: 0.8s;
}
.banner video {
  width: 100%;
}
.banner .phone_play {
  display: none;
}
.banner .swiper-slide {
  height: calc(100vh - 80px);
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}
.banner .swiper-slide-active .banner_txt > * {
  opacity: 1;
  -webkit-transform: none;
      -ms-transform: none;
          transform: none;
}
.banner .banner_des {
  margin-top: 15px;
      font-weight: 100;
}
.banner .banner_more {
  margin-top: 100px;
}
.banner .banner_more a {
  width: 165px;
  height: 45px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  border: 2px solid #fff;
  color: #fff;
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
}
.banner .banner_more a:hover {
  background-color: #2b68bf;
  color: #fff;
  border-color: #2b68bf;
}
.banner_point{
    display: flex;
    justify-content: center;
    position: absolute;
    bottom:40px !important;
    left: 0;
    width: 100%;
    z-index: 2;
}
.banner_point span{
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background: #fff;
    margin: 0 15px;
    cursor: pointer;
    opacity: 1;
}
.banner_point .swiper-pagination-bullet-active{
    background: #2b68bf;
}
@media screen and (max-width: 1600px) {
  .banner .banner_more {
    margin-top: 6.94%;
  }
}
@media screen and (max-width: 900px) {
  .banner {
    padding-top: 60px;
  }
}
@media screen and (max-width: 600px) {
  .banner .swiper-slide {
    height: 300px;
  }
  .banner .banner_bg {
    height: 100%;
    width: auto;
  }
  .banner .banner_des {
    margin-top: 5px;
  }
  .banner .banner_more a {
    width: 130px;
    height: 40px;
  }
  .banner_point{
      bottom: 20px !important;
  }
}