.introduce-wrap {
  background: #fff;
  overflow: hidden;
  transform: translateY(-4px);
}
.introduce-wrap header {
  text-align: center;
  margin-top: 30px;
}
.introduce-wrap > header > h2 {
  font-size: 54px;
  font-family: Source Han Sans SC;
  font-weight: bold;
  color: #053991;
  line-height: 1;
  margin: 0;
  transform: translateY(-70px);
}
.introduce-wrap > header > small {
  font-size: 80px;
  font-family: Impact;
  font-weight: 400;
  color: #053991;
  line-height: 145px;
  opacity: 0.1;
}
.introduce-wrap .history {
  display: flex;
  justify-content: space-between;
  align-items: start;
  padding: 0 30px;
}
.introduce-wrap .history h3 {
  font-size: 40px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  color: #003D98;
  margin: 0 0 10px;
}
.introduce-wrap .history h3 span {
  font-size: 18px;
  font-weight: 400;
}
.introduce-wrap .history li {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}
.introduce-wrap .history small {
  font-size: 14px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #666666;
  text-align: center;
}
.introduce-wrap .desc {
  margin-top: 90px;
}
.introduce-wrap .col {
  padding: unset;
  box-sizing: border-box;
}
.introduce-wrap .rich-text {
  margin: 61px 0 60px;
  padding: 0 15px;
  font-size: 16px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #666666;
  line-height: 36px;
}
.introduce-wrap .rich-text p {
  margin: unset;
}
.introduce-wrap .row .col {
  padding: 0 7.5px;
}
.introduce-wrap .row .col .wrap {
  position: relative;
  overflow: hidden;
}
.introduce-wrap .row .col:hover img {
  transform: scale(1.2);
}
.introduce-wrap .row .col:hover .mask {
  opacity: 1;
}
.introduce-wrap .row .mask {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  font-size: 16px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #FFFFFF;
  line-height: 32px;
  opacity: 0;
  transition: all .3s ease;
}
.introduce-wrap .row .mask p {
  margin: unset;
}
.introduce-wrap .row .col img {
  width: 100%;
  transition: all .3s ease;
}

.top.swiper {
  padding: 0 0 30px;
  width: 80%;
}
.top.swiper .swiper-slide {
  display: flex;
  justify-content: space-between;
}
.top.swiper .swiper-slide .left {
  flex: 1;
  margin-right: 60px;
}
.top.swiper .swiper-slide .cover {
  border-radius: 20px;
  overflow: hidden;
}
.top.swiper .swiper-slide .cover img {
  display: block;
}
.top.swiper .rich-text {
  padding: unset;
  margin: 40px 0;
}
.top.swiper h3 {
  font-size: 32px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  color: #053991;
}
.top.swiper p {
  font-size: 16px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #666666;
}
.bottom.swiper {
  padding: 70px 40px;
}
.bottom.swiper .swiper-slide {
  text-align: center;
  cursor: pointer;
}
.bottom.swiper .swiper-slide::before {
  content: "";
  position: absolute;
  top: -50px;
  left: 50%;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #003D98;
  border-radius: 50%;
  transform: translateX(-50%);
}
.bottom.swiper .swiper-slide.active::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.bottom.swiper .swiper-slide.active {
  color: #003D98;
}
.bottom.swiper .swiper-slide::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  width: 61px;
  height: 2px;
  background: #053991;
  transform: translateX(-50%) translateY(30px);
  opacity: 0;
  transition: all .3s ease;
}
.bottom.swiper .controller {
  position: absolute;
  top: 20px;
  left: 44px;
  right: 44px;
  height: 30px;
  display: flex;
  align-items: center;
  height: 12px;
  background: rgba(5, 57, 145, .3);
}
.bottom.swiper .swiper-button-prev,
.bottom.swiper .swiper-button-next {
  width: 44px;
  height: 44px;
  background: #FFFFFF;
  border: 1px solid #053991;
  border-radius: 50%;
  color: #053991;
}
.bottom.swiper .swiper-button-prev {
  left: -44px;
}
.bottom.swiper .swiper-button-next {
  right: -44px;
}
.bottom.swiper .swiper-button-prev::after,
.bottom.swiper .swiper-button-next::after {
  font-size: 18px;
}
.swiper-button-lock {
  display: flex;
}
.swiper-button-next.swiper-button-disabled,
.swiper-button-prev.swiper-button-disabled {
  opacity: 1;
  cursor: auto;
  pointer-events: unset;
}


@media screen and (max-width: 720px) {
  .introduce-wrap > header {
    padding: 40px 15px 0;
    margin: unset;
  }
  .introduce-wrap > header > h2 {
    font-size: 42px;
    line-height: 1.2;
    transform: translateY(-30px);
  }
  .introduce-wrap > header > small {
    font-size: 48px;
    line-height: 1;
  }
  .introduce-wrap .container {
    width: unset;
  }
  .introduce-wrap .history {
    display: block;
    padding: 0;
  }
  .introduce-wrap .history h3 {
    font-size: 18px;
    margin: 0 0 5px;
  }

  .introduce-wrap .history li {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    box-sizing: border-box;
    padding: 10px 5px;
  }
  .introduce-wrap .history small {
    font-size: 12px;
    text-align: center;
    line-height: 1.4;
  }
  .introduce-wrap .desc {
    margin-top: 90px;
  }
  .introduce-wrap .col {
    padding: unset;
    box-sizing: border-box;
  }
  .introduce-wrap .rich-text {
    margin: 15px 0 30px;
    padding: 0 15px;
    font-size: 14px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #666666;
    line-height: 24px;
  }
  .introduce-wrap .rich-text p {
    margin: unset;
  }
  .introduce-wrap .rich-text p + p {
    margin-top: 10px;
  }
  .introduce-wrap .row .col {
    padding: 0 15px;
  }
  .introduce-wrap .row .col + .col {
    margin-top: 15px;
  }
  .introduce-wrap .row .col .wrap {
    position: relative;
    overflow: hidden;
  }
  .introduce-wrap .row .col img {
    display: block;
  }
  .introduce-wrap .row .col:hover img {
    transform: scale(1);
  }
  .introduce-wrap .row .mask {
    opacity: 1;
  }
  .introduce-wrap .row .mask p {
    margin: unset;
    font-size: 14px;
  }
  .introduce-wrap .row .col img {
    width: 100%;
    transition: all .3s ease;
  }
  .introduce-wrap.r2 {
    margin-top: 60px;
  }
  .top.swiper {
    padding: 0;
    width: 100%;
  }
  .top.swiper .cover {
    width: 100%;
  }
  .top.swiper .cover > img {
    width: 100%;
    object-fit: contain;
  }
  .top.swiper .swiper-slide {
    display: flex;
    flex-direction: column-reverse;
    justify-content: space-between;
  }
  .top.swiper .rich-text {
    padding: unset;
    margin: 40px 0;
  }
  .top.swiper h3 {
    font-size: 32px;
    font-family: Microsoft YaHei;
    font-weight: bold;
    color: #053991;
  }
  .top.swiper p {
    font-size: 16px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #666666;
  }
  .bottom.swiper {
    padding: 70px 40px;
  }
  .bottom.swiper .swiper-slide {
    text-align: center;
    cursor: pointer;
  }
  .bottom.swiper .swiper-slide::before {
    content: "";
    position: absolute;
    top: -50px;
    left: 50%;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #003D98;
    border-radius: 50%;
    transform: translateX(-50%);
  }
  .bottom.swiper .swiper-slide.active::after {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
  .bottom.swiper .swiper-slide.active {
    color: #003D98;
  }
  .bottom.swiper .swiper-slide::after {
    content: "";
    position: absolute;
    bottom: -10px;
    left: 50%;
    width: 61px;
    height: 2px;
    background: #053991;
    transform: translateX(-50%) translateY(30px);
    opacity: 0;
    transition: all .3s ease;
  }
  .bottom.swiper .controller {
    position: absolute;
    top: 20px;
    left: 44px;
    right: 44px;
    height: 30px;
    display: flex;
    align-items: center;
    height: 12px;
    background: rgba(5, 57, 145, .3);
  }
  .bottom.swiper .swiper-button-prev,
  .bottom.swiper .swiper-button-next {
    width: 44px;
    height: 44px;
    background: #FFFFFF;
    border: 1px solid #053991;
    border-radius: 50%;
    color: #053991;
  }
  .bottom.swiper .swiper-button-prev {
    left: -44px;
  }
  .bottom.swiper .swiper-button-next {
    right: -44px;
  }
  .bottom.swiper .swiper-button-prev::after,
  .bottom.swiper .swiper-button-next::after {
    font-size: 18px;
  }
  .swiper-button-lock {
    display: flex;
  }
  .swiper-button-next.swiper-button-disabled,
  .swiper-button-prev.swiper-button-disabled {
    opacity: 1;
    cursor: auto;
    pointer-events: unset;
  }
}