img {
  display: inline-block;
}

/* .section-position-math {
  height: 100vh;
} */
.section-static {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
  text-align: center;
}

.section-video__video {
  position: absolute;
  top: 0;
  left: 50%;
  width: auto;
  /* height: 100%; */
  transform: translateX(-50%);
  max-width: none;
}

.section-video__clouds {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 77;
  overflow: hidden;
}
.section-video__cloud {
  position: absolute;
  height: 83%;
  max-width: none;
}
.section-video__cloud--left {
  top: 0;
  left: 0;
}
.section-video__cloud--right {
  bottom: 0;
  left: 43%;
}
.section-video__cloud--top {
  bottom: 50%;
  left: 30%;
}
.section-video__main {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 88;
  width: 100%;
  height: 100%;
  display: none;
}
.section-video__video.hide {
  opacity: 0;
}
.section-video__main-content {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #15203F;
}
.section-video__main-title {
  position: absolute;
  color: #fff;
  top: 50%;
  /* left: 14.062vw; */
  font-size: 52px;
  font-weight: 600;
  margin-bottom: 26px;
}
.section-video__main-desc {
  font-size: 26px;
  font-weight: 600;
}
.section-video__main-content--left {
  text-align: left;
}
.section-video__main-content--left .section-video__main-title {
  font-size: 48px;
}
.section-video__main-content--left .section-video__main-desc {
}
.section-video__scroll {
  position: absolute;
  bottom: 20px;
  left: 50%;
  z-index: 99;
  transform: translateX(-50%);
  /* display: none; */
  display: block;
}
.section-video__icon {
  display: flex;
  justify-content: center;
  width: 18px;
  height: 30px;
  border-radius: 10px;
  border: 2px solid #fff;
  margin: 0 auto;
}
.section-video__icon img {
  width: 14px;
  height: 14px;
  animation: mousewheel 2s infinite;
}

@keyframes mousewheel {
  0% {
    opacity: 0
  }
  50% {
    transform: translateY(10px);
    opacity: 1
  }
  100% {
    transform: translateY(20px);
    opacity: 0
  }
}

.section-video__scroll span {
  display: block;
  vertical-align: middle;
  font-size: 13px;
  /* font-weight: 600; */
  color: #fff;
  margin-top: 10px;
}
#section-two {
  position: relative;
}
#section-two .section-two__main {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  padding-top: 230px;
}
#section-two .section-two__title {
  font-size: 41px;
  font-weight: 600;
  /* color: #15203F; */
  color: #000;
  margin-bottom: 36px;
}
.index-btn {
  position: relative;
  display: flex;
  align-items: center;
  width: 224px;
  height: 56px;
  background: #3350f5;
  color: #fff;
  border-radius: 100px;
  padding-left: 30px;
  font-size: 16px;
  font-weight: 500;
  /* color: #BBD7EB; */
  cursor: pointer;
  user-select: none;
  transition: linear 0.2s background, linear 0.2s color;
}
.index-btn:hover {
  background: #000;
  color: #fff;
}
.index-btn:hover path {
  fill: #fff;
}
.index-btn:hover svg {
  right: 30px;
}
.index-btn svg {
  position: absolute;
  top: 50%;
  right: 54px;
  width: 17px;
  height: 18px;
  margin-top: -9px;
  transition: linear 0.2s right;
}
.index-btn path {
  transition: linear 0.2s fill;
}
.section-two__bg img {
  display: block;
  width: 100%;
}
#section-three {
  height: 780px;
  background: bottom right no-repeat;
  background-size: cover;
  padding-top: 210px;
}
#section-three .section-three__title {
  font-size: 48px;
  font-weight: 600;
  color: #000;
  margin-bottom: 36px;
}

@media screen and (max-width: 1400px) {
  .section-video__main-title {
      font-size: 38px;
      margin-bottom: 20px;
  }
  .section-video__main-desc {
      font-size: 20px;
  }
  .section-video__main-content--left .section-video__main-title {
      font-size: 38px;
  }
  #section-two .section-two__title {
      font-size: 38px;
      margin-bottom: 20px;
  }
  #section-three {
      height: 580px;
  }
  #section-three .section-three__title {
      font-size: 38px;
      margin-bottom: 20px;
  }
}
@media screen and (max-width: 1200px) {
  #section-two .section-two__main {
      padding-top: 140px;
  }
  #section-three {
      height: 480px;
      padding-top: 140px;
  }
}
@media screen and (max-width: 991px) {
  .section-video__main-title {
      font-size: 30px;
  }
  .section-video__main-desc {
      font-size: 18px;
  }
  .section-video__main-content--left .section-video__main-title {
      font-size: 30px;
  }
  #section-two .section-two__title {
      font-size: 30px;
  }
  #section-three .section-three__title {
      font-size: 30px;
  }
  .section-video__cloud--right {
      left: -50%;
  }
  .section-video__cloud--top {
      left: -50%;
  }
}
@media screen and (max-width: 767px) {
  .index-btn {
      width: 124px;
      height: 38px;
      border-radius: 38px;
      padding-left: 20px;
      font-size: 10px;
  }
  .index-btn svg {
      right: 20px;
      width: 10px;
      height: 10px;
      margin-top: -5px;
  }
  .index-btn:hover svg {
      right: 20px;
  }
  .section-video__main-title {
      font-size: 20px;
  }
  .section-video__main-content--left .section-video__main-title {
      font-size: 20px;
  }
  .section-video__main-desc {
      font-size: 12px;
  }
  #section-two .section-two__main {
      position: static;
      padding-top: 30px;
      padding-bottom: 30px;
  }
  #section-two .section-two__title {
      font-size: 20px;
  }
  #section-three .section-three__title {
      font-size: 20px;
  }
  #section-three {
      height: 280px;
      padding-top: 30px;
  }
}

.index-page .header img:first-child {
  display: block !important;
}
.index-page .header img:nth-of-type(2) {
  display: none !important;
}
.index-page .header-up img:first-child {
  display: none !important;
}
.index-page .header-up img:nth-of-type(2) {
  display: block !important;
}