.video-box {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
}
.video-box::before {
  position: absolute;
  left: 0;
  top: 0;
  content: "";
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.2);
}
.welcome {
  position: relative;
  background: url(../images/video.jpg) no-repeat center;
  background-size: cover;
}
.welcome .video-box {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
}
.welcome .video-box::before {
  position: absolute;
  left: 0;
  top: 0;
  content: "";
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.2);
}
.welcome video {
  height: 100%;
  object-fit: cover;
}
.welcome .text {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  white-space: nowrap;
  text-align: center;
}
.welcome .text .subtitle {
  font-size: 4rem;
}
.welcome .text .subtitle span {
  -webkit-text-fill-color: transparent;
  -webkit-text-stroke: 1px #fff;
  margin-right: 20px;
}
.welcome .text .summary {
  font-size: 1.5rem;
  text-align: center;
  font-weight: 350;
}
.welcome .text .playVideoSlide1Video1 {
  display: block;
  margin-top: 20%;
  text-align: center;
}
.welcome .text .playVideoSlide1Video1 i {
  font-size: 2.5rem;
  display: block;
}

.welcome .text .playVideoSlide1Video1 {
  display: block;
  margin-top: 20%;
  text-align: center;
}
.welcome .text .playVideoSlide1Video1 i {
  font-size: 2.5rem;
  display: block;
}

.welcome a {
  color: #fff;
}

.welcome .swiper .swiper-container-vertical > .swiper-pagination {
  right: 3%;
}
.welcome .swiper .swiper-container-vertical > .swiper-pagination::after {
  position: absolute;
  top: 30px;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  content: "";
  width: 1px;
  border: 1px dashed rgba(255, 255, 255, 0.5);
}

.swiper .swiper-pagination .swiper-pagination-bullet {
  width: 6px;
  height: 6px;
  background: #fff;
}

.lightbox-open {
  overflow: hidden;
}
.lightbox-open .lightbox {
  opacity: 1;
}
.lightbox {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  height: 100%;
  z-index: 99999;
  user-select: none;
  -webkit-user-select: none;
  display: none;
  transition: 0.3s;
}
.lightbox-container {
  display: none;
}
.lightbox .lightbox-mask {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.95);
}
.lightbox .lightbox-container {
  height: 100%;
}
.lightbox .lightbox-container .swiper {
  height: 100%;
}
.lightbox .lightbox-container .ajax-result {
  max-height: 100vh;
  overflow-y: auto;
}
.lightbox .lightbox-container .ajax-result::-webkit-scrollbar {
  width: 5px;
  height: 5px;
}
.lightbox .lightbox-container .ajax-result::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.8);
  -webkit-border-radius: 10px;
  border-radius: 10px;
}
.lightbox .lightbox-container .ajax-result::-webkit-scrollbar-thumb {
  -webkit-border-radius: 10px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.4);
}
.lightbox .lightbox-container img,
.lightbox .lightbox-container svg,
.lightbox .lightbox-container video,
.lightbox .lightbox-container .ajax-result {
  position: absolute;
  z-index: 2;
  max-width: 100%;
  max-height: 100%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: #000;
}
.lightbox .lightbox-container video {
  min-width: 600px;
  min-height: 400px;
  max-height: 80%;
  max-width: 80%;
}
.lightbox .lightbox-close {
  position: absolute;
  right: 2rem;
  top: 2rem;
  width: 1.5em;
  height: 1.5em;
  z-index: 99999;
  display: block;
  font-size: 30px;
  cursor: pointer;
  transition: all 0.2s linear;
}
.lightbox .lightbox-close:before {
  content: " ";
  position: absolute;
  left: 5%;
  right: 5%;
  top: 50%;
  border-bottom: solid 1.5px #fff;
  transform: rotate(-45deg);
}
.lightbox .lightbox-close:after {
  content: " ";
  position: absolute;
  left: 5%;
  right: 5%;
  top: 50%;
  border-bottom: solid 1.5px #fff;
  transform: rotate(45deg);
}
.lightbox .lightbox-close:hover {
  transform: rotate(180deg);
}
.lightbox .lightbox-loading {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 2;
  width: 1em;
  height: 1em;
  margin-left: -0.5em;
  margin-top: -0.5em;
  border-top: 1px solid #fff;
  border-right: 1px solid #fff;
  border-bottom: 1px solid #fff;
  border-left: 1px solid #000;
  border-radius: 50%;
  animation: spinner 700ms infinite linear;
  zoom: 1;
  font-size: 30px;
}
.slide2 a {
  color: #fff;
}
.slide2 {
  background: url(../images/index-bg2.jpg) no-repeat center;
  background-size: cover;
}
.slide3 {
  background: url(../images/index-bg3.jpg) no-repeat center;
  background-size: cover;
}
.slide4 {
  background: url(../images/index-bg4.jpg) no-repeat center;
  background-size: cover;
}

.slide2 .title,
.slide4 .title {
  font-size: 1.8rem;
  padding-bottom: 15px;
  position: relative;
  margin-bottom: 60px;
  color: #fff;
}

.slide2 .title::after,
.slide4 .title::after {
  position: absolute;
  bottom: 0;
  left: 0;
  content: "";
  width: 40px;
  height: 2px;
  background: #fff;
}

.slide2 .btn {
  width: 8rem;
  margin-left: auto;
  margin-top: 1em;
  padding: 10px 15px;
  background-color: #479fd1;
  border-color: #479fd1;
}
.slide2 .summary {
  line-height: 2;
  opacity: 0.7;
}
.slide2 .card-img {
  width: 548px;
}
.slide2 .thumb1 {
  width: 548px;
  display: block;
  height: 171px;
}
.slide2 .thumb2 {
  width: 685px;
  display: block;
  height: 384px;
}

.slide2 .thumb1 .iconfont,
.slide2 .thumb2 .iconfont {
  font-size: 3rem;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.slide4 .container {
  width: 1370rpx;
}
.slide4 .image-wrap {
  width: 1370rpx;
  height: 545px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
}
.slide4 .image-wrap img {
  display: block;
  position: relative;
}
.slide4 .image-wrap .scale {
  transform: scale(1.2);
  transition: all 1s ease-in-out;
}

.slide4 .image-wrap .img-box {
  overflow: hidden;
}
.slide4 .image-wrap .left img {
  height: 560px;
}
.slide4 .image-wrap .left .mask1 {
  pointer-events: none;
  width: 680px;
  height: 560px;
  position: absolute;
  left: 0;
  top: 0;
  color: #fff;
  padding: 10px;
  background: rgba(0, 0, 0, 0.4);
}
.slide4 .image-wrap .right .mask1 {
  pointer-events: none;
  width: 310px;
  height: 270px;
  position: absolute;
  left: 0;
  top: 0;
  padding: 10px;
  color: #fff;
  background: rgba(0, 0, 0, 0.4);
}

.slide4 .image-wrap .right {
  width: 635px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-gap: 20px;
  img {
    width: 310px;
    height: 270px;
  }
}