#app{
    background: #FFFFFF;
}
.banner{
    width: 100%;
    position: relative;
}
.banner .banner-img{
    width: 100%;
}
.banner .banner-img img{
    width: 100%;
}
.banner .banner-inner{
    width: 80%;
    max-width: 1440px;
    margin: 0 auto;
    position: absolute;
    top: 50%;
    left: 10%;
    transform: translateY(-50%);
}
.banner .banner-inner .banner-content{
    display: flex;
    flex-direction: column;
}
.banner .banner-inner .banner-content .banner-title{
  color: #ffffff;
  font-family: "Alibaba PuHuiTi";
  font-weight: 400;
  font-size: 45px;
    margin-bottom: 3%;
}
.banner .banner-inner .banner-content .banner-desc{
  color: #f8f8f8;
  font-family: "Alibaba PuHuiTi";
  font-weight: 400;
  font-size: 30px;
   margin-bottom: 4%;
}
.about-nav{
    width: 100%;
}
.about-nav .about-nav-inner{
  margin: 40px auto;
  display: flex;
  flex-direction: row;
  justify-content: center;
}
.about-nav .about-nav-item{
  color: #8e8e8e;
  font-family: "Alibaba PuHuiTi";
  font-weight: 400;
  font-size: 20px;
  line-height: 27px;
  text-transform: uppercase;
  padding: 0 9px;
  position: relative;
}
.about-nav .about-nav-item::after{
  content: '';
  position: absolute;
  right: 0;
  top: 25%; 
  height: 60%; 
  width: 1px;
  background-color: #7d7d7d;
}
.about-nav a:last-child .about-nav-item::after{
  display: none;
}
.about-nav .about-nav-item-active{
  color: #0e0e0e;
  font-family: "Alibaba PuHuiTi";
  font-weight: 400;
  font-size: 20px;
  line-height: 27px;
}
.video {
  width: 100%;
    display: flex;
    justify-content: center;    
}
.video .inner {
  width: 80%;
  margin: 0 auto;
  max-width: 1440px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  padding-top: 47px;
}
.video .inner .video-item {
  border-radius: 12px;
  background: #bbbbbb;
  width: calc((100% - 20px) / 2);
    height: 303px;
  margin-bottom: 27px;
  aspect-ratio: 1.77695167;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-self: center;
  position: relative;
}
.video .inner .video-item:first-child {
  width: 100%;
    height: 303px;
}
.video .inner .video-item video {
  width: 100%;
  height: 100%;
  object-fit: scale-down;
}
.video .inner .video-item .img-inner {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  transition: 0.5s;
}
.video .inner .video-item .img-inner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: 0.5s;
}
.video .inner .video-item .img-inner img:hover {
  transform: scale(1.05);
}
.video .inner .video-item .img-inner .mask {
  background: rgba(0, 0, 0, 0.3);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.video .inner .video-item .img-inner .mask .play {
  width: 72px;
  height: 72px;
  background: rgba(255, 255, 255, 0.74);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: 0.5s;
  cursor: pointer;
}
.video .inner .video-item .img-inner .mask .play svg {
  width: 40%;
  height: 40%;
  cursor: pointer;
  position: relative;
  left: 4px;
}
.video .inner .video-item .img-inner .mask .play:hover {
  transform: scale(1.05);
}
.video .inner .video-item:hover video {
  transform: scale(1.05);
}
.video video {
  height: 74vh;
}


.page{
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 62px;
    margin-bottom: 55px;
}
.page .page-prev,
.page .page-next{ 
    cursor: pointer;
}
.page .pages{
    display: flex;
    align-items: stretch;
    justify-content: center;
    gap: 62px;
}
.page .pages .num{
  color: #000000;
  font-family: DIN;
  font-weight: 500;
  font-size: 40px;
    cursor: pointer;
}
.page .pages .num-active{
  color: #cc141c;
  font-family: DIN;
  font-weight: 700;
  font-size: 40px;
  border-bottom: 4px solid #cc141c;
}
.page .pages .ellipsis{
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}
.page .pages .ellipsis .dot{
  width: 6px;
  height: 6px;
  background: #000000;
}
@media (max-width: 1440px) {
}
@media (max-width: 1380px) {
}
@media (max-width: 1280px) {
.banner{
    margin-top: 90px;
}
.banner .banner-inner .banner-content .banner-title {
    font-size: 40px;
    margin-bottom: 2%;
}
.banner .banner-inner .banner-content .banner-desc {
    font-size: 27px;
}
.about-nav .about-nav-inner {
    margin: 30px auto;
}
.about-nav .about-nav-item {
    font-size: 18px;
}
}
@media (max-width: 1110px) {
.video .video-inner {
        width: 80%; 
    }
}
@media (max-width: 1080px) {
.page .page-prev svg,
.page .page-next svg{ 
    width: 50px;
    height: 50px;
}
.page .pages .num {
    font-size: 35px;
}
}
@media (max-width: 1025px) {
.banner .banner-inner .banner-content .banner-title {
    font-size: 35px;
    margin-bottom: 1%;
}
.banner .banner-inner .banner-content .banner-desc {
    font-size: 24px;
}
.about-nav .about-nav-inner {
    margin: 20px auto;
}
.about-nav .about-nav-item {
    font-size: 16px;
}
}
@media (max-width: 900px) {
.about-nav .about-nav-inner {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2,1fr);
    text-align: center;
    gap: 15px;
}
.about-nav .about-nav-item::after {
  width: 0px;
}
.about-nav .about-nav-item {
    font-size: 14px;
}
.video .video-item-one{
    width: 100%;
}
.video .video-item2 {
    gap: 30px; 
}
.video .video-item1 {
    margin-bottom: 20px;
}
.page .page-prev svg,
.page .page-next svg{ 
    width: 40px;
    height: 40px;
}
.page .pages .num {
    font-size: 30px;
}
}
@media (max-width: 821px) {
.banner .banner-inner .banner-content .banner-title {
    font-size: 30px;
    margin-bottom: 1%;
}
.banner .banner-inner .banner-content .banner-desc {
    font-size: 21px;
}
}
@media (max-width: 768px) {
.banner{
    margin-top: 50px;
}
.video .inner .video-item {
  width: 100%;
}
.banner .banner-inner .banner-content .banner-title {
    font-size: 25px;
    margin-bottom: 0%;
}
.video .video-item1 .video-item1-one .video-mask .about-play, .video .video-item2 .video-item2-one .video-mask .about-play {
    width: 60px;
    height: 60px;
}
    .video .video-item2 {
        gap: 20px;
    }
.page {
    justify-content: space-evenly;
    gap: 0px;
}
.page .pages {
    gap: 42px;
}
}
@media (max-width: 641px) {
}
@media (max-width: 521px) {
.banner .banner-inner .banner-content .banner-title {
    font-size: 20px;
    line-height: 30px;
}
.banner .banner-inner .banner-content .banner-desc {
    font-size: 16px;
}
.video .video-item1 .video-item1-one .video-mask .about-play, .video .video-item2 .video-item2-one .video-mask .about-play {
    width: 50px;
    height: 50px;
}
.page .pages {
    gap: 22px;
}
}
@media (max-width: 431px) {
.banner .banner-inner .banner-content .banner-desc {
    display: none;
}
}
@media (max-width: 395px) {
}
@media (max-width: 375px) {
}
@media (max-width: 356px) {
}
@media (max-width: 321px) {
}