.index-banner {
  width: 100%;
  position: relative;
  height: 100vh;
  margin-bottom: 85px;
  overflow: hidden;
}
.index-banner .bd {
  position: relative;
  z-index: 0;
}
.index-banner .bd ul {
  width: 100% !important;
}
    .index-banner .bd ul li {
        position: relative;
        width: 100% !important;
        height: 100vh;
        overflow: hidden;
        text-align: center;
    }
        .index-banner .bd ul li a {
            display: block;
            height: 100vh;
            background-size: cover;
        }
        .index-banner .bd ul li video {
            display: block;
            height: 100vh;
            object-fit:cover;
        }
.index-banner .bd ul li .tit {
  position: absolute;
  top: 55%;
  left: 50%;
  z-index: 2;
  transform: translate(-720px, -50%);
  opacity: 0;
  color: #fff;
}
.index-banner .hd {
  width: 100%;
  position: absolute;
  z-index: 1;
  bottom: 0;
  left: 0;
  height: 30px;
  line-height: 30px;
}
.index-banner .hd ul {
  text-align: center;
}
.index-banner .hd ul li {
  cursor: pointer;
  display: inline-block;
  *display: inline;
  zoom: 1;
  width: 0.625vw;
  height: 0.625vw;
  margin: 0 0.885vw;
  background-color: rgba(0, 0, 0, 0.4);
  overflow: hidden;
  vertical-align: top;
  line-height: 9999px;
  border-radius: 50%;
}
.index-banner .hd ul .on {
  background-position: 0 0;
  background-color: #FFFFFF;
}
.index-banner .timer {
  position: absolute;
  z-index: 1;
  left: 0;
  bottom: 0;
  height: 6px;
  width: 0;
  background: #fff;
  filter: alpha(opacity=60);
  opacity: 0.6;
  font-size: 0;
  overflow: hidden;
}
.index-tit h3 {
  font-size: 40px;
  color: #0B0B0B;
  font-weight: normal;
}
.index-tit span {
  display: block;
  padding-top: 18px;
  font-size: 48px;
  color: rgba(160, 215, 245, 0.15);
}
.detail-nore {
  padding-top: 20px;
  color: #A0A0A0;
  font-size: 14px;
}
.detail-nore i {
  display: block;
  font-size: 30px;
}
.tabs-menu {
  display: none;
}
.index-news {
  padding-bottom: 80px;
  padding-top: 38px;
  margin-bottom: 68px;
  box-sizing: border-box;
  background: url("../img/index-bg-new.png") center no-repeat;
  background-size: cover;
}
.index-news .news-nav {
  width: 190px;
  padding-top: 56px;
  position: relative;
  z-index: 1;
}
.index-news .news-nav li {
  position: relative;
  height: 86px;
}
.index-news .news-nav li::before {
  position: absolute;
  left: 0;
  top: 10px;
  content: '';
  display: block;
  opacity: 0;
  width: 100%;
  height: 86px;
}
.index-news .news-nav li:first-child::before {
  background: url("../img/news-nav-bg01.png") center;
  background-size: cover;
}
.index-news .news-nav li:nth-child(2)::before {
  background: url("../img/news-nav-bg02.png") center;
  background-size: cover;
}
.index-news .news-nav li:last-child::before {
  background: url("../img/news-nav-bg03.png") center;
  background-size: cover;
}
.index-news .news-nav li a {
  position: absolute;
  top: 0;
  left: 0;
  display: block;
  width: 100%;
  height: 86px;
  line-height: 86px;
  color: #353535;
  font-size: 16px;
}
.index-news .news-nav li.on::before {
  opacity: 1;
  top: 0;
  transition: all 0.5s;
}
.index-news .news-nav li.on a {
  color: #fff;
  font-size: 28px;
}
.index-news .news-child {
  padding-left: 33px;
  margin-left: -1px;
  border-left: 1px solid #DDDDDD;
}
.index-news .news-child .news-con .news-type .news-li {
  padding: 26px 0;
  border-bottom: 1px solid #ddd;
  cursor: pointer;
}
.index-news .news-child .news-con .news-type .news-li .date {
  width: 212px;
}
.index-news .news-child .news-con .news-type .news-li .date dt {
  color: #0F4696;
  font-size: 48px;
  font-family: "Arial";
  line-height: 60px;
}
.index-news .news-child .news-con .news-type .news-li .date dd {
  color: #353535;
  font-size: 18px;
  font-family: "Arial";
}
.index-news .news-child .news-con .news-type .news-li .news-img {
  overflow: hidden;
  width: 315px;
  height: 180px;
}
.index-news .news-child .news-con .news-type .news-li .news-img img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: 0.3s;
}
.index-news .news-child .news-con .news-type .news-li .news-txt {
  padding-left: 46px;
}
.index-news .news-child .news-con .news-type .news-li .news-txt p {
  display: none;
}
.index-news .news-child .news-con .news-type .news-li .news-txt dt {
  color: #353535;
  font-size: 24px;
  line-height: 28px;
}
.index-news .news-child .news-con .news-type .news-li .news-txt dd {
  color: #A0A0A0;
  font-size: 14px;
  line-height: 20px;
  margin-top: 30px;
}
.index-news .news-child .news-con .news-type .news-li:hover .news-img img {
  transform: scale(1.1);
  transition: 0.3s;
}
.index-news .news-child .news-con .news-type .news-li:hover .news-txt dt {
  color: #0F4696;
}
.video-zone {
  background: -webkit-linear-gradient(top, rgba(248, 251, 254, 0.62) 0%, rgba(220, 236, 245, 0.2) 100%);
  background: -o-linear-gradient(top, rgba(248, 251, 254, 0.62) 0%, rgba(220, 236, 245, 0.2) 100%);
  background: linear-gradient(to bottom, rgba(248, 251, 254, 0.62) 0%, rgba(220, 236, 245, 0.2) 100%);
  margin-bottom: 50px;
}
.video-box {
  overflow: initial;
}
.video-box .page {
  padding-bottom: 50px;
}
.video-list {
  margin: 0 -22px 10px;
  transition: all 0.5s;
}
.video-li {
  width: 33.33%;
  transition: all 0.5s;
}
.video-li:nth-child(n+4) {
  display: none;
}
.video-li .video-con {
  margin: 30px 22px;
  background-color: #fff;
  border-bottom: 2px solid #0F4696;
  box-shadow: 0px 3px 15px rgba(0, 0, 0, 0.1);
  cursor: pointer;
  transition: all 0.5s;
}
.video-li .video-con .video-img {
  padding-top: 75%;
}
.video-li .video-con .video-img .mark {
  left: 0;
  bottom: 0;
  width: 100%;
  padding-top: 16.22%;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, #000000 100%);
  opacity: 0.3;
}
.video-li .video-con .video-img .video-play {
  bottom: 20px;
  right: 34px;
  transition: all 0.5s;
}
.video-li .video-con .video-img .video-play a {
  color: #fff;
  font-size: 32px;
}
.video-li .video-con .video-img .video-play .play-round {
  width: 33px;
  height: 33px;
  box-sizing: content-box;
  border-radius: 50%;
  opacity: 0;
  transition: all 0.5s;
}
.video-li .video-con .video-info {
  padding: 35px 25px 15px;
  height: 288px;
  border: 2px solid transparent;
  border-bottom: 0;
  transition: all 0.5s;
}
.video-li .video-con .video-info .video-name {
  font-size: 24px;
  line-height: 32px;
  transition: all 0.5s;
}
.video-li .video-con .video-info .video-date {
  color: #0F4696;
  padding-top: 20px;
  transition: all 0.5s;
}
.video-li .video-con .video-info .video-date p::before {
  display: block;
  content: '';
  width: 15px;
  height: 15px;
  background: url("../img/ny/date.png") left center no-repeat;
  background-size: contain;
  margin-right: 8px;
}
.video-li .video-con .video-info .news-more span {
  font-size: 14px;
}
.video-li .video-con .video-info .news-more i {
  color: #004B9E;
  display: block;
  font-size: 30px;
}
.video-li .video-con:hover .video-img img {
  transform: scale(1.1);
}
.video-li .video-con:hover .video-img .video-play .play-round {
  opacity: 1;
  animation: playvideo 1s infinite;
}
.video-li .video-con:hover .video-info {
  border-color: #0F4696;
}
.main-business {
  background: url("../img/index-bg-zy.png") center bottom no-repeat;
  background-size: 100% auto;
  padding-bottom: 27px;
  margin-bottom: 60px;
}
.main-business .business-brief {
  width: 620px;
  max-width: 90%;
  margin: 10px auto;
  color: #000000;
  font-size: 16px;
  line-height: 30px;
}
.main-business .business-con {
  padding-top: 48px;
  padding-bottom: 48px;
}
.main-business .business-con .business-img {
  overflow: hidden;
  width: 352px;
  height: 611px;
  transition: all 0.5s;
  cursor: pointer;
}
.main-business .business-con .business-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.main-business .business-con .business-img:hover {
  transform: scale(1.1);
  transition: all 0.5s;
}
.main-business .business-con .business-name {
  font-size: 44px;
  color: #fff;
  padding-bottom: 15px;
  font-family: "楷体";
  font-weight: bolder;
  text-shadow: 0px 6px 10px rgba(0, 0, 0, 0.3);
}
.core-industries {
  background: url("../img/index-bg-hx.png") center bottom no-repeat;
  background-size: 100% auto;
  padding-top: 40px;
  padding-bottom: 170px;
}
.corelist {
  overflow: hidden;
  zoom: 1;
  max-width: 1800px;
  margin: 0 auto;
  background-color: #fff;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}
.corelist li {
  width: 150px;
  height: 751px;
  overflow: hidden;
  zoom: 1;
  transition: width 0.5s;
  cursor: pointer;
}
.corelist li h4 {
  position: relative;
  width: 100%;
  height: 751px;
  padding: 0 1.51vw;
  cursor: pointer;
  overflow: hidden;
  background-position: center bottom;
  background-repeat: no-repeat;
  background-size: auto 50.5%;
  color: #fff;
  font-weight: normal;
}
.corelist li h4 .core-type {
  color: #fff;
  padding-top: 78px;
  font-weight: normal;
}
.corelist li h4 .core-type dt {
  font-size: 30px;
  margin-bottom: 10px;
  text-align: center;
}
.corelist li h4 .core-type dd {
  font-size: 22px;
  -webkit-writing-mode: vertical-rl;
  writing-mode: vertical-rl;
  margin: auto;
  letter-spacing: 5px;
}
.corelist li:nth-child(1) h4 {
  background-color: #009BE1;
}
.corelist li:nth-child(2) h4 {
  background-color: #4D76CD;
}
.corelist li:nth-child(3) h4 {
  background-color: #00A04B;
}
.corelist li:nth-child(4) h4 {
  background-color: #E29B67;
}
.corelist li:nth-child(5) h4 {
  background-color: #00A2E9;
}
.corelist li:nth-child(6) h4 {
  background-color: #867AE9;
}
.corelist li:nth-child(7) h4 {
  background-color: #0F4696;
}
.corelist li .tabBody {
  overflow: hidden;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: 0.5s;
}
.corelist li .tabBody img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.corelist li .core-text {
  visibility: hidden;
  top: 0;
  left: 0;
  padding: 40px;
  opacity: 0;
  transition: 0.5s;
}
.corelist li .core-text .core-tit {
  padding-bottom: 13px;
  font-size: 33px;
  color: #0B0B0B;
  background: linear-gradient(to right, #4BB13F 0, #4BB13F 22%, #00B0EC 22%, #00B0EC 44.78%, #0F4696 44.78%, #0F4696 100%);
  background-size: 66px 4px;
  background-repeat: no-repeat;
  background-position: left bottom;
}
.corelist li .core-text .core-detail {
  padding-top: 25px;
}
.corelist li .core-text .core-img {
  overflow: hidden;
  width: 100%;
  height: 350px;
}
.corelist li .core-text .core-img img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.corelist li .core-text .core-txt {
  line-height: 36px;
  padding-top: 30px;
  -webkit-line-clamp: 4;
}
.corelist li .core-text .detail-nore i {
  color: #004B9E;
}
.corelist li.hover {
  width: calc(100% - 150px * 6);
}
.corelist li.hover .tabBody {
  background-color: #fff;
  opacity: 1;
}
.corelist li.hover .core-text {
  opacity: 1;
  visibility: visible;
}
.index-video {
  background: url("../img/video-bg.png") center no-repeat;
  background-size: cover;
  padding-top: 50px;
  height: 800px;
  box-sizing: border-box;
  -webkit-transition: all 2.5s ease-in-out;
  transition: all 2.5s ease-in-out;
  cursor: pointer;
}
.index-video .content {
  top: 0;
  width: 1440px;
}
.index-video .index-tit h3 {
  color: #FFFFFF;
}
.index-video .index-tit span {
  color: rgba(255, 255, 255, 0.15);
}
.index-video .video-txt {
  padding-top: 10px;
}
.index-video .video-txt dl {
  margin-bottom: 50px;
  opacity: 1;
}
.index-video .video-txt dl dt {
  color: rgba(0, 0, 0, 0.6);
  font-size: 14px;
  margin-top: 5px;
}
.index-video .video-txt dl dd {
  font-family: "楷体";
  color: #0F4696;
  font-size: 24px;
  line-height: 36px;
  font-weight: bolder;
}
.index-video .video-txt .more-video {
  display: inline-block;
  padding: 10px 30px;
  background-color: #0f4696;
  color: #fff;
  font-size: 14px;
  text-align: center;
  border-radius: 30px;
  transition: all 0.5s;
}
.index-video .video-txt .more-video:hover {
  background-color: #00a04b;
}
.index-video .video-play {
  top: 55%;
}
.index-video .video-play a {
  color: #fff;
  font-size: 70px;
}
.index-video .video-play .play-round {
  width: 72px;
  height: 72px;
  box-sizing: content-box;
  border-radius: 50%;
  opacity: 0;
}
.index-video:hover .video-play .play-round {
  opacity: 1;
  animation: playvideo 1s infinite;
}
@keyframes playvideo {
  from {
    border: 1px solid #fff;
  }
  to {
    border: 15px solid transparent;
  }
}
.video-pop {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  background-color: #000000;
  z-index: 3;
  opacity: 0;
  visibility: hidden;
  transition: all 0.5s;
}
.video-pop .video-close {
  position: fixed;
  top: 5%;
  right: 5%;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  cursor: pointer;
  z-index: 5;
  background-color: rgba(255, 255, 255, 0.3);
}
.video-pop .video-close .lvfaweb {
  color: #fff;
}
.video-pop .video-close:hover {
  background-color: #0F4696;
  text-align: center;
}
.video-pop .video-con {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 1px;
  height: 1px;
  object-fit: contain;
  outline: none;
  z-index: 4;
  transition: all 0.5s;
}
.video-pop.video-open {
  width: 100%;
  height: 100%;
  opacity: 1;
  visibility: visible;
}
.video-pop.video-open .video-con {
  width: 80%;
  height: 80%;
}
@media screen and (max-width: 1800px) {
  .core-industries .corelist {
    margin: 0 30px;
  }
}
@media screen and (max-width: 1450px) {
  .index-banner .bd ul li .tit {
    left: 30px;
    transform: translate(0, -45%);
    transition: left 0.5s;
  }
  .index-banner .bd ul li .tit .banner-txt {
    max-width: 50vw;
    transition: max-width 0.5s;
    max-height: 36vw;
  }
  .index-news .content {
    width: auto;
    margin: 0 2vw;
    transition: 0.5s;
  }
  .index-news .news-nav {
    width: 13.2vw;
    padding-top: 56px;
  }
  .index-news .news-nav li {
    height: 5.97vw;
  }
  .index-news .news-nav li::before {
    height: 5.97vw;
  }
  .index-news .news-nav li a {
    height: 5.97vw;
    line-height: 5.97vw;
    font-size: 1.2vw;
  }
  .index-news .news-nav li.on a {
    font-size: 1.8vw;
  }
  .index-news .news-child {
    padding-left: 2.29vw;
    min-height: auto;
  }
  .index-news .news-child .news-con .news-type {
    overflow: hidden;
  }
  .index-news .news-child .news-con .news-type .news-li .date {
    width: 14.72vw;
  }
  .index-news .news-child .news-con .news-type .news-li .news-img {
    overflow: hidden;
    width: 21.875vw;
    height: 12.5vw;
  }
  .index-news .news-child .news-con .news-type .news-li .news-txt {
    padding-left: 3.2vw;
  }
  .video-box {
    margin: 0 20px;
  }
  .video-box .page {
    padding-bottom: 30px;
  }
  .video-list {
    margin: 0 -16px 10px;
  }
  .video-li {
    width: 33.33%;
  }
  .video-li .video-con {
    margin: 25px 16px;
  }
  .main-business .business-brief {
    width: 620px;
    max-width: 90%;
  }
  .main-business .business-con .business-img {
    width: 24.44vw;
    height: 42.43vw;
  }
  .main-business .business-con .business-name {
    font-size: 3.6vw;
  }
  .core-industries {
    padding-top: 40px;
    padding-bottom: 120px;
  }
  .core-industries .corelist {
    margin: 0 30px;
  }
  .core-industries .corelist li {
    width: 130px;
    height: 651px;
  }
  .core-industries .corelist li h4 {
    width: 100%;
    height: 651px;
    transition: height 0.5s;
  }
  .core-industries .corelist li h4 .core-type {
    padding-top: 50px;
  }
  .core-industries .corelist li .core-text .core-img {
    height: 300px;
  }
  .core-industries .corelist li .core-text .core-txt {
    -webkit-line-clamp: 3;
  }
  .core-industries .corelist li.hover {
    width: calc(100% - 130px * 6);
  }
  .index-video .content {
    width: 95%;
    margin: 0 auto;
    transition: width 0.5s;
  }
}
@media screen and (max-width: 1280px) {
  .index-news .news-child .news-con .news-type .news-li .date {
    width: 13.28vw;
  }
  .index-news .news-child .news-con .news-type .news-li .date dt {
    font-size: 3.4vw;
    line-height: 4.2vw;
  }
  .index-news .news-child .news-con .news-type .news-li .date dd {
    font-size: 1.2vw;
  }
  .index-news .news-child .news-con .news-type .news-li .news-img {
    overflow: hidden;
    width: 19.53vw;
    height: 11.48vw;
  }
  .index-news .news-child .news-con .news-type .news-li .news-txt dt {
    font-size: 1.9vw;
    line-height: 2.4vw;
  }
  .index-news .news-child .news-con .news-type .news-li .news-txt dd {
    font-size: .9vw;
    margin-top: 1.2vw;
  }
  .video-list {
    margin: 0 -12px 10px;
  }
  .video-li {
    width: 33.33%;
  }
  .video-li .video-con {
    margin: 20px 12px;
  }
  .video-li .video-con .video-info {
    padding: 25px 20px 15px;
    height: 248px;
  }
  .video-li .video-con .video-info .video-name {
    font-size: 21px;
    line-height: 28px;
  }
  .video-li .video-con .video-info .video-date {
    padding-top: 16px;
  }
  .main-business .business-con {
    padding-bottom: 30px;
  }
  .main-business .business-con .business-img {
    width: 26vw;
    height: 45.13vw;
  }
  .main-business .business-con .business-name {
    font-size: 3.6vw;
  }
  .core-industries .corelist li {
    width: 110px;
    height: 551px;
  }
  .core-industries .corelist li h4 {
    width: 100%;
    height: 551px;
  }
  .core-industries .corelist li h4 .core-type {
    padding-top: 50px;
  }
  .core-industries .corelist li .core-text .core-img {
    height: 240px;
  }
  .core-industries .corelist li .core-text .core-txt {
    -webkit-line-clamp: 3;
    line-height: 30px;
  }
  .core-industries .corelist li.hover {
    width: calc(100% - 110px * 6);
  }
}
@media screen and (max-width: 1080px) {
  .index-banner {
    margin-bottom: 2.5em;
    margin-top: 3em;
  }
  .index-tit h3 {
    font-size: 1.8em;
    color: #0B0B0B;
    font-weight: normal;
  }
  .index-tit span {
    display: block;
    padding-top: 18px;
    font-size: 2em;
    color: rgba(160, 215, 245, 0.15);
  }
  .detail-nore {
    padding-top: 1em;
    color: #A0A0A0;
    font-size: .9em;
  }
  .detail-nore i {
    display: block;
    font-size: 1.4em;
  }
  .video-list {
    margin: 0 -12px 10px;
  }
  .video-li {
    width: 33.33%;
  }
  .video-li .video-con {
    margin: 16px 12px;
  }
  .video-li .video-con .video-img .video-play {
    bottom: 12px;
    right: 20px;
  }
  .video-li .video-con .video-img .video-play a {
    color: #fff;
    font-size: 32px;
  }
  .video-li .video-con .video-img .video-play .play-round {
    width: 33px;
    height: 33px;
    box-sizing: content-box;
    border-radius: 50%;
    opacity: 0;
  }
  .video-li .video-con .video-info {
    padding: 20px 15px 8px;
    height: 208px;
    border: 2px solid transparent;
    border-bottom: 0;
  }
  .video-li .video-con .video-info .video-name {
    font-size: 19px;
    line-height: 26px;
  }
  .video-li .video-con .video-info .video-date {
    color: #0F4696;
    padding-top: 16px;
  }
  .video-li .video-con .video-info .video-date p::before {
    display: block;
    content: '';
    width: 15px;
    height: 15px;
    background: url("../img/ny/date.png") left center no-repeat;
    background-size: contain;
    margin-right: 8px;
  }
  .video-li .video-con .video-info .news-more span {
    font-size: 14px;
  }
  .video-li .video-con .video-info .news-more i {
    color: #004B9E;
    display: block;
    font-size: 30px;
  }
  .core-industries .corelist li {
    width: 90px;
    height: 451px;
  }
  .core-industries .corelist li h4 {
    width: 100%;
    height: 451px;
  }
  .core-industries .corelist li h4 .core-type {
    padding-top: 30px;
  }
  .core-industries .corelist li .core-text {
    padding: 20px;
  }
  .core-industries .corelist li .core-text .core-tit {
    font-size: 28px;
    background-size: 53px 4px;
    padding-bottom: 9px;
  }
  .core-industries .corelist li .core-text .core-img {
    height: 180px;
  }
  .core-industries .corelist li .core-text .core-txt {
    -webkit-line-clamp: 3;
    line-height: 28px;
    padding-top: 18px;
    font-size: 15px;
  }
  .core-industries .corelist li.hover {
    width: calc(100% - 90px * 6);
  }
  .index-video {
    padding-top: 30px;
    height: 690px;
  }
  .index-video .video-play {
    top: 50%;
    left: auto;
    right: 5%;
  }
}
@media screen and (max-width: 768px) {
  .index-banner {
    margin-bottom: 0;
  }
  .index-banner .timer {
    height: 3px;
  }
  .index-tit h3 {
    font-size: 1.2em;
    color: #0B0B0B;
    font-weight: normal;
  }
  .index-tit span {
    display: block;
    padding-top: 0;
    font-size: 1.8em;
    color: rgba(160, 215, 245, 0.15);
  }
  .detail-nore {
    padding-top: 1em;
    color: #A0A0A0;
    font-size: .9em;
  }
  .detail-nore i {
    display: block;
    font-size: 1.4em;
  }
  .tabs-menu {
    background-color: #0F4696;
    margin-bottom: 2em;
    display: block;
    padding: 1em 0;
  }
  .tabs-menu li {
    width: 25%;
    padding: 0;
    line-height: 3em;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
  }
  .tabs-menu li a {
    display: block;
    font-size: 1.2em;
    color: #fff;
    white-space: nowrap;
  }
  .tabs-menu li.active {
    background: url(../img/ny/nav-active-bg.png) center no-repeat;
    background-size: cover;
  }
  .index-news {
    padding-bottom: 5vw;
    padding-top: 2.5vw;
    margin-bottom: 2.5em;
  }
  .index-news .content {
    display: block;
  }
  .index-news .news-nav {
    width: 100%;
    padding-top: 0;
    display: flex;
    margin-bottom: 0;
    border-bottom: 1px solid #ddd;
  }
  .index-news .news-nav li {
    -webkit-box-flex: 1;
    -ms-flex: 1;
    -webkit-flex: 1;
    flex: 1;
    min-width: 0;
    height: 3em;
  }
  .index-news .news-nav li::before {
    width: 100%;
    height: 3em;
  }
  .index-news .news-nav li a {
    height: 3em;
    line-height: 3em;
    font-size: 0.9em;
  }
  .index-news .news-nav li.on a {
    font-size: 1em;
  }
  .index-news .news-child {
    padding-left: 0;
    margin-left: -1px;
    min-height: auto;
    border-left: 0;
  }
  .index-news .news-child .news-con .news-type {
    height: auto;
  }
  .index-news .news-child .news-con .news-type .news-li {
    padding: 1em 0;
    position: relative;
  }
  .index-news .news-child .news-con .news-type .news-li .date {
    display: none;
  }
  .index-news .news-child .news-con .news-type .news-li .news-img {
    overflow: hidden;
    width: 8.5em;
    height: 6.5em;
  }
  .index-news .news-child .news-con .news-type .news-li .news-img img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: 0.3s;
  }
  .index-news .news-child .news-con .news-type .news-li .news-txt {
    padding-left: 2vw;
  }
  .index-news .news-child .news-con .news-type .news-li .news-txt p {
    display: block;
    color: #0F4696;
    font-size: .85em;
  }
  .index-news .news-child .news-con .news-type .news-li .news-txt dt {
    color: #353535;
    font-size: 1em;
    margin-top: .5em;
    line-height: 1.4;
  }
  .index-news .news-child .news-con .news-type .news-li .news-txt dd {
    color: #A0A0A0;
    font-size: .85em;
    line-height: 1.4;
    margin-top: .5em;
    -webkit-line-clamp: 1;
  }
  .index-news .news-child .news-con .news-type .news-li:hover .news-img img {
    transform: scale(1.1);
    transition: 0.3s;
  }
  .index-news .news-child .news-con .news-type .news-li:hover .news-txt dt {
    color: #0F4696;
  }
  .video-box {
    margin: 0 1em;
  }
  .video-box .page {
    padding-bottom: 1em;
  }
  .video-list {
    margin: 0 -0.4em 1em;
  }
  .video-li {
    width: 50%;
  }
  .video-li:nth-child(n+4) {
    display: block;
  }
  .video-li .video-con {
    margin: .4em;
    background-color: #fff;
    border-bottom: 2px solid #0F4696;
    box-shadow: 0px 3px 15px rgba(0, 0, 0, 0.1);
    cursor: pointer;
  }
  .video-li .video-con .video-img {
    padding-top: 75%;
  }
  .video-li .video-con .video-img .mark {
    left: 0;
    bottom: .5em;
    width: 100%;
    padding-top: 16.22%;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, #000000 100%);
    opacity: 0.3;
  }
  .video-li .video-con .video-img .video-play {
    bottom: 0;
    right: .6em;
  }
  .video-li .video-con .video-img .video-play a {
    color: #fff;
    font-size: 1.6em;
  }
  .video-li .video-con .video-img .video-play .play-round {
    width: 1.5em;
    height: 1.5em;
    box-sizing: content-box;
    border-radius: 50%;
    opacity: 0;
  }
  .video-li .video-con .video-info {
    padding: .6em .5em .2em;
    height: 8.5em;
    border: 2px solid transparent;
    border-bottom: 0;
  }
  .video-li .video-con .video-info .video-name {
    font-size: .95em;
    line-height: 1.5;
  }
  .video-li .video-con .video-info .video-date {
    color: #0F4696;
    padding-top: .5em;
    font-size: .8em;
  }
  .video-li .video-con .video-info .video-date p::before {
    display: block;
    content: '';
    width: 1em;
    height: 1em;
    background: url("../img/ny/date.png") left center no-repeat;
    background-size: contain;
    margin-right: .5em;
  }
  .video-li .video-con .video-info .news-more span {
    font-size: .85em;
  }
  .video-li .video-con .video-info .news-more i {
    color: #004B9E;
    display: block;
    font-size: 1.8em;
  }
  .video-li .video-con:hover .video-img img {
    transform: scale(1.1);
  }
  .video-li .video-con:hover .video-img .video-play .play-round {
    opacity: 1;
    animation: playvideo 1s infinite;
  }
  .video-li .video-con:hover .video-info {
    border-color: #0F4696;
  }
  .main-business {
    padding-bottom: 0;
    margin-bottom: 2.7em;
  }
  .main-business .business-brief {
    line-height: 1.5;
    font-size: 1em;
  }
  .main-business .business-con {
    padding-top: 1em;
    padding-bottom: 1em;
  }
  .main-business .business-con .business-img {
    width: 26vw;
    height: 45.13vw;
  }
  .main-business .business-con .business-name {
    font-size: 1.4em;
  }
  .core-industries {
    padding-top: 1.5em;
    padding-bottom: 3.5em;
  }
  .core-industries .corelist {
    margin: 0 1em;
  }
  .core-industries .corelist li {
    height: 400px;
    transition: height 0.5s;
    width: calc(14.28571429%);
  }
  .core-industries .corelist li h4 {
    visibility: visible;
    width: 100%;
  }
  .core-industries .corelist li h4 .core-type dt {
    font-size: 1.4em;
  }
  .core-industries .corelist li h4 .core-type dd {
    font-size: 1em;
  }
  .core-industries .corelist li .tabBody {
    display: none;
  }
  .core-industries .corelist li.on h4 {
    width: 100%;
    visibility: visible;
  }
  .core-industries .corelist li.on .tabBody {
    display: none;
  }
  .core-industries {
    padding-top: 1.5em;
    padding-bottom: 3.5em;
  }
  .core-industries .corelist {
    margin: 0 1em;
  }
  .core-industries .corelist li {
    width: calc(14.28571429%);
    height: 400px;
  }
  .core-industries .corelist li h4 {
    width: 100%;
    height: 451px;
  }
  .core-industries .corelist li h4 .core-type {
    padding-top: 30px;
  }
  .core-industries .corelist li .core-text {
    padding: 20px;
    display: none;
  }
  .core-industries .corelist li .core-text .core-tit {
    font-size: 28px;
    background-size: 53px 4px;
    padding-bottom: 9px;
  }
  .core-industries .corelist li .core-text .core-img {
    height: 180px;
  }
  .core-industries .corelist li .core-text .core-txt {
    -webkit-line-clamp: 3;
    line-height: 28px;
    padding-top: 18px;
    font-size: 15px;
  }
  .core-industries .corelist li.hover {
    width: calc(14.28571429%);
  }
  .core-industries .corelist li.hover .core-type {
    opacity: 1;
  }
  @keyframes playvideo {
    from {
      border: 1px solid #fff;
      opacity: 1;
    }
    to {
      border: 15px solid transparent;
      opacity: 0;
    }
  }
  .index-video {
    height: 500px;
  }
  .index-video .video-txt dl {
    margin-bottom: 1em;
  }
  .index-video .video-txt dl dt {
    font-size: .9em;
  }
  .index-video .video-txt dl dd {
    font-size: 1.0em;
    line-height: 1.8;
    text-shadow: 0 0 0.5em rgba(255, 255, 255, 0.8);
  }
  .index-video .video-txt dl dd img {
    max-width: 60%;
  }
  .index-video .video-play {
    right: 3%;
  }
  .index-video .video-play a {
    color: #fff;
    font-size: 50px;
  }
  .index-video .video-play .play-round {
    width: 52px;
    height: 52px;
    animation: playvideo 1s infinite;
  }
}