.ov {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.ab {
  display: block;
  width: 100%;
  height: 100%;
}
.header_main {
  height: 99px;
  z-index: 100;
  position: fixed;
  top: 0;
  min-width: 1280px;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.7);
}
.header_main .header_right {
  position: absolute;
  right: 100px;
  height: 100%;
  z-index: 11;
}
.header_main .header_right .en {
  position: absolute;
  left: 107px;
  top: 40px;
  z-index: 11;
}
.header_main .header_right .shop {
  position: absolute;
  left: 160px;
  top: 39px;
  z-index: 11;
}
.header_main .header_right .shop i {
  width: 20px;
  height: 19px;
  background-position: -30px -209px;
}
.header_main .header_right .en i {
  width: 22px;
  height: 18px;
  background-position: 0 -209px;
}
.header_main.xc {
  background: #f5f9fd;
  position: fixed;
  transition: ease-in-out .2s;
}
.header_main .webLogo {
  top: 27px;
  left: 43px;
  position: absolute;
}
.header_main .webLogo img {
  display: block;
  height: 54px;
}
.header_main .search-box {
  position: absolute;
  top: 30px;
  z-index: 101;
  right: -70px;
}
.header_main .search-box .butn {
  display: block;
  cursor: pointer;
  width: 40px;
  height: 40px;
}
.header_main .search-box .butn i {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background-position: 0 0;
}
.header_main .search-box .butn.hov i {
  background-position: -43px 0;
}
.header_main .share-sub {
  position: absolute;
  right: 55px;
  top: 1px;
  width: 0;
  height: 40px;
  overflow: hidden;
  background: #fff;
  border-radius: 20px;
  border: none;
  z-index: 10;
}
.header_main .share-sub.on {
  border: 1px solid #ddd;
  height: 38px;
}
.header_main .share-sub .sub-btn {
  border: none;
  width: 26px;
  height: 26px;
  cursor: pointer;
  margin-top: 7px;
  background-position: -85px 0;
  transition: ease-in-out 0.2s;
  outline: none;
}
.header_main .share-sub .tex {
  width: 135px;
  font-size: 14px;
  height: 18px;
  line-height: 18px;
  padding: 11px 14px;
  color: #333;
  border: none;
  background: #fff;
  outline: none;
}
.nav_main {
  z-index: 10;
  text-align: center;
  padding-right: 110px;
}
.nav_main ul {
  display: inline-block;
  zoom: 1;
}
.nav_main .list li {
  float: left;
  line-height: 99px;
  height: 99px;
  text-align: center;
  z-index: 10;
}
.nav_main .list li .nav1 {
  margin: 0 40px;
  display: block;
  position: relative;
  cursor: pointer;
  font-size: 20px;
  color: #172336;
}
.nav_main .list li .nav1 i {
  width: 11px;
  height: 6px;
  background-position: 0 0;
  margin-left: 8px;
  margin-bottom: 2px;
}
.nav_main .list li .nav1:before {
  width: 0;
  height: 2px;
  content: "\20";
  display: block;
  position: absolute;
  transition: ease-in-out .2s;
  left: 50%;
  bottom: 0px;
  background: #245893;
}
.nav_main .list li.hover .nav1:before,
.nav_main .list li:hover .nav1:before {
  width: 100%;
  left: 0;
}
.nav_main .list li:hover .subNav {
  opacity: 1;
  filter: alpha(opacity=100);
  height: auto;
}
.nav_main .list li .subNav .w1400 .nav_left li a,
.nav_main .list li .subNav2 .w1400 .nav_left li a {
  display: block;
  width: 100%;
  height: 100%;
}
.nav_main .list li .subNav .w1400 .nav_left .on,
.nav_main .list li .subNav2 .w1400 .nav_left .on {
  font-weight: bold;
}
.nav_main .list li .subNav .w1400 .nav_left .on a,
.nav_main .list li .subNav2 .w1400 .nav_left .on a {
  color: #1478be;
}
.nav_main .list li .subNav .w1400 .nav_left li:hover,
.nav_main .list li .subNav2 .w1400 .nav_left li:hover {
  font-weight: bold;
}
.nav_main .subNav {
  width: 100%;
  position: absolute;
  left: 0;
  opacity: 0;
  height: 0;
  top: 99px;
  text-align: center;
  background: #fff;
  z-index: 99;
  transition: all ease 300ms;
  -webkit-transition: all ease 300ms;
  overflow: hidden;
  box-shadow: 3px 3px 3px rgba(0, 0, 0, 0.1);
}
.nav_main .subNav .pro_img {
  position: absolute;
  right: 0;
  top: 20px;
  width: 250px;
}
.nav_main .subNav .about_nav {
  padding-top: 60px;
  padding-bottom: 20px;
}
.nav_main .subNav .about_nav .about_left {
  width: 738px;
  float: left;
}
.nav_main .subNav .about_nav .about_left dl {
  width: 152px;
  text-align: left;
  float: left;
  margin-left: 94px;
}
.nav_main .subNav .about_nav .about_left dl dt {
  border-bottom: 1px solid #dfe1e6;
  font-size: 18px;
  line-height: 30px;
  padding-bottom: 13px;
  font-weight: lighter;
  margin-bottom: 28px;
}
.nav_main .subNav .about_nav .about_left dl dd {
  font-size: 13px;
  float: left;
  width: 100%;
  margin-left: 0px;
  line-height: 40px;
}
.nav_main .subNav .about_nav .about_left dl a {
  display: block;
  width: 100%;
  height: 100%;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  padding: 0;
  margin: 0;
  cursor: pointer;
  color: #333;
  text-align: left;
}
.nav_main .subNav .about_nav .about_left dl a img {
  width: 30px;
  height: 30px;
  float: left;
  margin-right: 10px;
}
.nav_main .subNav .about_nav .about_left dl a:hover {
  color: #1478be;
  font-weight: bold;
}
.nav_main .subNav .about_nav .about_right {
  float: right;
}
.nav_main .subNav .about_nav .about_right img {
  width: 500px;
  height: 240px;
  border-radius: 10px;
}
.nav_main .list li .subNav .w1400 .nav_left,
.nav_main .list li .subNav2 .w1400 .nav_left {
  text-align: left;
  position: relative;
  margin-top: 40px;
  width: 190px;
  transition: none;
  height: 332px;
  overflow-y: auto;
}
.nav_main .list li .subNav .w1400 .nav_left::-webkit-scrollbar {
  width: 5px;
  height: 5px;
}
.nav_main .list li .subNav .w1400 .nav_left::-webkit-scrollbar-thumb {
  width: 15px;
  -webkit-box-shadow: inset 0 0 5px rgba(91, 152, 217, 5);
  border-radius: 15px;
  background: #5b98d9;
}
.nav_main .list li .subNav .w1400 .nav_left::-webkit-scrollbar-track {
  border-radius: 0;
  -webkit-box-shadow: inset 0 0 5px rgba(0, 0, 0, 0);
  background: #f5f5f5;
}
.nav_main .list li .subNav .w1400 .nav_left li,
.nav_main .list li .subNav2 .w1400 .nav_left li {
  height: 40px;
  line-height: 40px;
  text-align: left;
  width: 100%;
  font-size: 18px;
  transition: none;
  font-weight: 400;
}
.nav_main .list li .subNav .w1400 .nav_right,
.nav_main .list li .subNav2 .w1400 .nav_right {
  width: calc(100% - 240px);
  margin-top: 40px;
  margin-bottom: 40px;
  padding-right: 20px;
  box-sizing: border-box;
  border-left: 1px solid #e5e9ed;
  position: relative;
  height: 302px;
  overflow-y: auto;
  overflow-x: hidden;
}
.nav_main .list li .subNav .w1400 .nav_right .col {
  column-count: 4;
  -moz-column-count: 4;
  -webkit-column-count: 4;
  column-gap: 40px;
  margin-right: 310px;
}
.nav_main .list li .subNav .w1400 .nav_right dl {
  width: 100%;
  text-align: left;
  margin-bottom: 30px;
  margin-left: 40px;
  break-inside: avoid;
}
.nav_main .list li .subNav .w1400 .nav_right::-webkit-scrollbar {
  width: 5px;
  height: 5px;
}
.nav_main .list li .subNav .w1400 .nav_right::-webkit-scrollbar-thumb {
  width: 15px;
  -webkit-box-shadow: inset 0 0 5px rgba(91, 152, 217, 5);
  border-radius: 15px;
  background: #5b98d9;
}
.nav_main .list li .subNav .w1400 .nav_right::-webkit-scrollbar-track {
  border-radius: 0;
  -webkit-box-shadow: inset 0 0 5px rgba(0, 0, 0, 0);
  background: #f5f5f5;
}
.nav_main .list li .subNav .w1400 .nav_right dl dt {
  border-bottom: 1px solid #dfe1e6;
  font-size: 14px;
  line-height: 24px;
  padding-bottom: 13px;
  font-weight: 400;
  margin-bottom: 8px;
}
.nav_main .list li .subNav .w1400 .nav_right dl dt a {
  overflow: hidden;
  white-space: nowrap;
  display: block;
  width: 100%;
  height: 100%;
  text-overflow: ellipsis;
}
.nav_main .list li .subNav .w1400 .nav_right dl dd,
.nav_main .list li .subNav2 .w1400 .nav_right dl dd {
  font-size: 12px;
  float: left;
  width: 100%;
  margin-left: 0px;
  line-height: 28px;
}
.nav_main .list li .subNav .w1400 .nav_right dl dd a,
.nav_main .list li .subNav2 .w1400 .nav_right dl dd a {
  display: block;
  width: 100%;
  height: 100%;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  padding: 0;
  margin: 0;
  cursor: pointer;
  color: #333;
  text-align: left;
}
.nav_main .list li .subNav .w1400 .nav_right dl dd span,
.nav_main .list li .subNav2 .w1400 .nav_right dl dd span {
  color: #ccc;
  font-family: arial;
  float: right;
}
.nav_main .list li .subNav .w1400 .nav_right dl dd:hover a,
.nav_main .list li .subNav2 .w1400 .nav_right dl dd:hover a {
  color: #1478be;
  font-weight: bold;
}
.nav_main .list li .subNav .w1400 .nav_right dl dd:hover a span,
.nav_main .list li .subNav2 .w1400 .nav_right dl dd:hover a span {
  font-weight: 400;
}
.nav_main li dl {
  width: 120%;
  position: absolute;
  left:-10%;
  top: 99px;
  text-align: center;
  z-index: 10;
  background: #fff;
  padding: 5px 0;
  display: none;
}
.nav_main li{position:relative;}
.nav_main li dl dd {
  line-height: 50px;
  position: relative;
  z-index: 11;
  padding: 0 10px;
}
.nav_main li dl dd a {
  width: 100%;
  font-size: 14px;
  height: 100%;
  display: block;
  color: #333;
  border-bottom: 1px solid #ddd;
}
.nav_main li dl dd:hover a {
  background: #245893;
  color: #fff;
}
.nav_main li dl dd .three {
  position: absolute;
  left: 100%;
  top: 0;
  width: 110%;
  display: none;
  background: rgba(0, 0, 0, 0.5);
  z-index: 15;
}
.nav_main li dl dd .three a:hover {
  background: #3062c1;
}
.nav_main li dl dd:hover .three {
  display: block;
}
.por {
  position: relative;
}
/*banner*/
.banner_main {
  width: 100%;
  overflow: hidden;
  position: relative;
  z-index: 2;
}
.banner_main .banner {
  width: 100%;
  min-width: 1000px;
  height: 100vh;
  z-index: 20;
  position: relative;
  overflow: hidden;
  *zoom: 1;
}
.banner_main .banner .tip {
  position: absolute;
  left: 50%;
  width: 1400px;
  margin-left: -700px;
  text-align: center;
  bottom: 6%;
  z-index: 10;
}
.banner_main .banner .cut3video {
  min-width: 100%;
  width: 100%;
  min-height: 100%;
  position: absolute;
  top: 0;
  left: 0;object-fit: cover;
    background-size: 100% 100%;
  z-index: 10;
}
.banner_main .banner .tip span {
  margin: 0 8px;
  width: 16px;
  height: 16px;
  background: #66727f;
  opacity: 0.9;
  text-align: center;
  cursor: pointer;
  font-size: 0;
  font-weight: bold;
  overflow: hidden;
  display: inline-block;
  *display: inline;
  border-radius: 100%;
  *zoom: 1;
}
.banner_main .banner .tip span.cur {
  opacity: 1;
  background: #245893;
}
.banner_main .banner .prev,
.banner_main .banner .next {
  width: 50px;
  height: 50px;
  position: absolute;
  left: 5%;
  background-position: 0 -46px;
  z-index: 10;
  top: 50%;
  margin-top: -25px;
  cursor: pointer;
  transition: ease-in-out 0.2s;
  opacity: 1;
  filter: alpha(opacity=70);
  animation: toleft 3s infinite linear;
}
.banner_main .banner .next {
  animation: toright2 3s infinite linear;
  left: auto;
  right: 5%;
  background-position: -0px -96px;
}
.banner .next:hover {
  opacity: 1;
  filter: alpha(opacity=100);
  transform: translateX(5px);
}
.banner .prev:hover {
  opacity: 1;
  filter: alpha(opacity=100);
  transform: translateX(-5px);
}
.banner_main .banner .list {
  width: 100%;
}
.banner_main .banner li {
  width: 100%;
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  right: 0;
  z-index: 1;
  overflow: hidden;
  background: #fff;
}
.banner_main .banner li img {
  width: 100%;
  height: 100%;
  display: block;
  position: relative;
  object-fit: cover;
  object-position: left;
  left: 0;
  top: 0;
}
@keyframes scaleDraw {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.02);/*放大1.1倍*/
  }
  100% {
    transform: scale(1);
  }
}
.banner .list li a {
  width: 100%;
  display: block;
  height: 100%;
}
.h3 {
  color: #333;
  font-size: 54px;
  font-weight: bold;
}
.floor_3_main .p{font-size: 16px;
    color: #bec3cb;
    text-transform: uppercase;}
.w1600 {
  width: 1600px;
  margin: 0 auto;
}
.floor_3_main {
  background: #fff;
  padding: 100px 0 100px;
}
.floor_3_main .tit {
  margin-bottom: 20px;
}

.floor_3_main .tit .right {
  font-size: 24px;margin-top:10px;
}
.floor_3_main .tit .right .a {
  border: 1px solid #a1b1c2;
  width: 157px;
  height: 48px;
  line-height: 48px;
  text-align: center;
  display: block;
  float: left;
  border-radius: 24px;
  font-size: 20px;
  color: #34373d;
}
.floor_3_main .tit .right .a:hover {
  background: #245893;
  color: #fff;
}
.floor_3_main .tit .right .hd {
  float: left;
}
.floor_3_main .tit .right li {
  float: left;
  margin-right: 10px;
  font-size: 20px;
  color: #34373d;
  border-radius: 24px;
  cursor: pointer;
  border: 1px solid #a1b1c2;
  width: 157px;
  height: 48px;
  line-height: 48px;
  text-align: center;
}
.floor_3_main .tit .right li.on {
  background: #245893;
}
.floor_3_main .tit .right li.on a {
  color: #fff;
  display: block;
  width: 100%;
  height: 100%;
}
.floor_3_main .bd li {
  float: left;
  width: 30.5%;
  margin-right: 4.25%;
  transition: ease-in-out .2s;
}
.floor_3_main .bd li h3 {
  font-size: 26px;
  line-height: 35px;
  height: 70px;
  overflow: hidden;
  margin-top: 50px;
}
.floor_3_main .bd li h4 {
  font-size: 16px;
  color: #b4bdc8;
  margin-top: 30px;
}
.floor_3_main .bd li h4 i {
  width: 6px;
  height: 10px;
  background-position: -38px -185px;
  margin-left: 15px;
  margin-bottom: 3px;
}
.floor_3_main .bd li .img {
  padding-top: 56.25%;
  position: relative;
  border-radius: 5px;
  overflow: hidden;
  width: 100%;
  display: block;
}
.floor_3_main .bd li .img .time {
  background: #245893;
  color: #fff;
  position: absolute;
  right: 0;
  bottom: 0;
  width: 80px;
  height: 79px;
  display: block;
  text-align: center;
  border-radius: 5px 0 0 0;
}
.floor_3_main .bd li .img .time h5 {
  font-size: 40px;
  font-family: arial;
  padding-top: 5px;
}
.floor_3_main .bd li .img .time p {
  font-family: arial;
}
.floor_3_main .bd li .img img {
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  display: block;
  object-fit: cover;
}
.floor_3_main .bd li:hover {
  transform: translateY(-10px);
}
.floor_3_main .bd li:hover h4 {
  color: #333;
}
.floor_3_main .bd li:hover h4 i {
  background-position: -47px -185px;
}
.floor_3_main .bd li:hover h3 {
  color: #d5742e;
  font-weight: bold;
}
.floor_3_main .bd li:hover .time {
  background: #d5742e;
}
.floor_3_main .bd li:last-child {
  margin-right: 0;
}
.bottom_main {
  background: #245893;
}
.bottom_main .tel {
  padding: 74px 0 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.bottom_main .tel .left a {
  color: #fff;
  font-size: 36px;
  font-weight: bold;
}
.bottom_main .tel .left ul {
  padding-top: 15px;
}
.bottom_main .tel .left li {
  color: #d0d0d0;
  font-size: 18px;
  line-height: 48px;
  display: flex;
  align-items: center;
}
.bottom_main .tel .left li i {
  width: 22px;
  height: 22px;
  border-radius: 100%;
  border: 1px solid #fff;
  background-position: -209px -165px;
  margin-right: 9px;
  vertical-align: middle;
}
.bottom_main .tel .left li:nth-child(1) i{background-position:-209px -117px}
.bottom_main .tel .left li:nth-child(2) i{background-position:-209px -141px}
.bottom_main .tel .right {
  flex: 1;
  color: #fff;
}
.bottom_main .tel .right ul {
  float: right;
}
.bottom_main .tel .right li {
  float: left;
  text-align: center;
  font-size: 18px;
  transition: ease-in-out .2s;
}
.bottom_main .tel .right li img {
  width: 150px;
  height: 150px;
  padding-bottom: 15px;
}
.bottom_main .tel .right li:first-child {
  margin-right: 45px;
}
.bottom_main .tel .right li:hover {
  transform: translateY(-8px);
}
.bottom_copy {
  background: #3b3b3b;
  line-height: 51px;
  color: #a8aaad;
}
.bottom_copy a {
  color: #a8aaad;
}
.bottom_copy a:hover {
  color: #fff;
}
.product_main {
  background: #f5f9fd;
}
.product_main .product_menu {
  padding-top: 30px;
  padding-bottom: 50px;
}
.product_main .product_menu li {
  width: 15.8%;
  float: left;
  border: 1px solid #cad4dd;
  border-radius: 5px;
  text-align: center;
  margin-bottom: 10px;
  margin-right: 1.04%;
  box-sizing: border-box;
  line-height: 45px;
  background: #fff;
  font-size: 16px;
}
.product_main .product_menu li a {
  color: #23355e;
  display: block;
  width: 100%;
  height: 100%;
}
.product_main .product_menu li:nth-child(6n) {
  margin-right: 0;
}
.product_main .product_menu li.hover,
.product_main .product_menu li:hover {
  border: 1px solid #f5f9fd;
  background: linear-gradient(to bottom, #0ca2f6, #20a8f4, #028fe8);
}
.product_main .product_menu li.hover a,
.product_main .product_menu li:hover a {
  color: #fff;
}
.product_main .product_body li {
  width:23.125%;
  margin-right:2.5%;
  float: left;
  background: #fff;
  border-radius: 10px;
  margin-top: 50px;
  margin-bottom: 0px;
  position: relative;
  overflow: hidden;
  padding-bottom: 159px;
}
.product_main .product_body li .txt {
  display: block;
  padding: 28px 20px 36px;
  position: absolute;
  left: 0;
  bottom: 0;
  box-sizing: border-box;
  width: 100%;
  background: #fff;
  z-index: 10;
  transition: height ease-in-out .2s;
  height: 159px;
}
.product_main .product_body li .txt h3 {
  font-size: 24px;
  margin-bottom: 15px;
  line-height: 34px;
  transition: ease-in-out .2s;
}
.product_main .product_body li .txt h3 b {
  float: right;
  display: flex;
  width: 34px;
  height: 34px;
  border-radius: 100%;
  background: #d2d6d9;
  align-items: center;
}
.product_main .product_body li .txt h3 b i {
  width: 18px;
  height: 17px;
  background-position: 0 -378px;
  margin: 0 auto;
  display: block;
}
.product_main .product_body li .txt p {
  line-height: 24px;
  color: #666;
}
.product_main .product_body li .txt .span {
  margin-top: 18px;
  height: 0;
  overflow: hidden;
  display: block;
  transition: ease-in-out .2s;
}
.product_main .product_body li .txt .span span {
  display: block;
  width: 49%;
  float: left;
  background: #eef3f6;
  color: #245893;
  padding: 0 15px;
  box-sizing: border-box;
  line-height: 36px;
  border-radius: 5px;
  margin-bottom: 8px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.product_main .product_body li .txt .span span:nth-child(2n) {
  float: right;
}
.product_main .product_body li:nth-child(4n) {
  margin-right: 0;
}
.product_main .product_body li .img {
  position: relative;
  display: block;
  width: 100%;
  padding-top: 75%;
  overflow: hidden;
  z-index: 10;
}
.product_main .product_body li .img img {
  position: absolute;
  top: 0;
  left: 0;
  display: block;
  object-fit: cover;
  object-position: center;
  width: 100%;
  height: 100%;
}
.product_main .product_body li:hover {
  box-shadow: 1px 3px 3px rgba(0, 0, 0, 0.1);
}
.product_main .product_body li:hover .txt h3 {
  color: #245893;
}
.product_main .product_body li:hover .txt h3 b {
  background: #245893;
}
.product_main .product_body li:hover .span {
  height: auto;
  transition: ease-in-out .2s;
}
.index_title h3 {
  font-size: 54px;
  color: #1d2541;
  font-weight: bold;
}
.index_title p {
  font-size: 16px;
  color: #bec3cb;
  text-transform: uppercase;
}
.floor_1 {
  padding: 100px 0;
}
.floor_1 .index_title {
  padding-bottom: 40px;
}
.floor_1 .index_title .a {
  margin-top: 10px;
}
.floor_1 .index_title .a a {
  float: left;
  margin-right: 10px;
  font-size: 20px;
  color: #34373d;
  border-radius: 24px;
  cursor: pointer;
  border: 1px solid #a1b1c2;
  width: 167px;
  height: 48px;
  line-height: 48px;
  text-align: center;
}
.floor_1 .index_title .a a:hover {
  background: #245893;
  color: #fff;
}
.floor_1 .item {
  z-index: 10;
  width: 49%;
  float: left;
  position: relative;
  background: url(../images/f1_bg.jpg) no-repeat;
  background-size: cover;
  height: 348px;
  border-radius: 10px;
  padding-left: 60px;
  margin-bottom: 25px;
  box-sizing: border-box;overflow:hidden;
}
.floor_1 .item h3 {
  font-size: 28px;
  color: #3e4762;
  margin-top: 45px;
  margin-bottom: 18px;
  height: 30px;
  line-height: 30px;
  font-weight: bold;
}
.floor_1 .item p {
  width: 100%;
  position: relative;
  z-index: 10; padding-right:60px;box-sizing:border-box;
  font-size: 16px;
  color: #999;
  line-height: 28px;
  height: 84px;
  margin-bottom: 40px;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  text-overflow: ellipsis;
  white-space: normal;
}
.floor_1 .item span {
  width: 61px;
  height: 61px;
  display: block;
  border-radius: 100%;
  background: #ccd0d3;
  text-align: center;
}
.floor_1 .item span i {
  width: 22px;
  height: 7px;
  background-position: -444px -9px;
  margin-top: 27px;
}
.floor_1 .item img {
  position: absolute;
  right: 20px;
  bottom: 20px;
  transition: ease-in-out .2s;
  width: 390px;
}
.floor_1 .item a {
  display: block;
  width: 100%;
  height: 100%;
}
.floor_1 .item:hover h3 {
  color: #245893;
}
.floor_1 .item:hover span {
  background: #245893;
}
.floor_1 .item:hover img {
  transform: translateX(-10px);
}
.floor_1 .item:nth-child(2n) {
  float: right;
}
.floor_2_main {
  padding-bottom: 80px;
}
.floor_2_main .index_title {
  text-align: center;
  padding-bottom: 40px;
}
.floor_2_main .slideGroup {
  position: relative;
}
.floor_2_main .img {
  position: absolute;
  left: 0;
  top: 0;
  width: calc(100% - 410px);
  height: 512px;
  z-index: 1;
}
.floor_2_main .img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
}
.floor_2_main .parHd {
  width: 408px;
  position: absolute;
  z-index: 3;
  right: 0;
  top: 0;
  height: 510px;
  border: 1px solid #dae0ec;
  background: #fff;
}
.floor_2_main .parHd li {
  background: #fff;
  border-top: 1px solid #dae0ec;
}
.floor_2_main .parHd li .t {
  height: 93px;
  position: relative;
}
.floor_2_main .parHd li .t b {
  display: block;
  width: 20px;
  height: 100%;
  background: #245893;
  position: absolute;
  left: -20px;
  top: 0;
  opacity: 0;
}
.floor_2_main .parHd li .t i {
  width: 45px;
  height: 45px;
  background-position: -52px -267px;
  position: absolute;
  left: 30px;
  top: 50%;
  margin-top: -22px;
}
.floor_2_main .parHd li .t h3 {
  font-size: 28px;
  padding-right: 45px;
  padding-left: 107px;
  line-height: 32px;
  padding-top: 21px;
}
.floor_2_main .parHd li .t p {
  padding-left: 107px;
}
.floor_2_main .parHd li .txt {
  padding: 30px 40px;
  height: 228px;
  box-sizing: border-box;
  display: none;
  background: #f3f5f9;
}
.floor_2_main .parHd li .txt p {
  font-size: 16px;
  line-height: 28px;
  color: #4a4a4a;
  margin-bottom: 30px;
}
.floor_2_main .parHd li .txt a {
  width: 126px;
  height: 45px;
  line-height: 45px;
  border: 1px solid #245893;
  box-sizing: border-box;
  display: block;
  text-align: center;
  border-radius: 22px;
  color: #245893;
  font-size: 16px;
}
.floor_2_main .parHd li .txt a i {
  width: 8px;
  height: 13px;
  background-position: -67px -106px;
  margin-left: 19px;
  margin-bottom: 2px;
}
.floor_2_main .parHd li:first-child {
  border-top: none;
}
.floor_2_main .parHd li:nth-child(2) .t i {
  background-position: -97px -267px;
}
.floor_2_main .parHd li:nth-child(3) .t i {
  background-position: -142px -267px;
}
.floor_2_main .parHd li.on {
  background: #245893;
}
.floor_2_main .parHd li.on .t b {
  opacity: 1;
}
.floor_2_main .parHd li.on .t i {
  background-position: -52px -312px;
}
.floor_2_main .parHd li.on .t h3 {
  color: #fff;
}
.floor_2_main .parHd li.on .t p {
  color: #93c9ff;
}
.floor_2_main .parHd li.on .txt {
  display: block;
}
.floor_2_main .parHd li:nth-child(2).on {
  background: #245893;
}
.floor_2_main .parHd li:nth-child(2).on .t i {
  background-position: -97px -312px;
}
.floor_2_main .parHd li:nth-child(3).on {
  background: #245893;
}
.floor_2_main .parHd li:nth-child(3).on .t i {
  background-position: -142px -312px;
}
.floor_2_main .parBd {
  width: 100%;
  position: relative;
}
.floor_2_main .parBd .a {
  position: relative;
  background: #fff;
  height: 61px;
  margin-bottom: 76px;
}
.floor_2_main .parBd .sPrev,
.floor_2_main .parBd .sNext {
  width: 61px;
  height: 61px;
  position: relative;
  z-index: 5;
  display: block;
  background: #fff;
  border-radius: 100%;
  display: flex;
  text-align: center;
  align-items: center;
  position: absolute;
  right: 81px;
  cursor: pointer;
}
.floor_2_main .parBd .sPrev i,
.floor_2_main .parBd .sNext i {
  width: 22px;
  height: 7px;
  background-position: -419px 0;
  margin: 0 auto;
}
.floor_2_main .parBd .sNext {
  right: 0;
}
.floor_2_main .parBd .sNext i {
  background-position: -444px 0;
}
.floor_2_main .parBd .sPrev:hover {
  background: #2ca8ff;
}
.floor_2_main .parBd .sPrev:hover i {
  background-position: -419px -9px;
}
.floor_2_main .parBd .sNext:hover {
  background: #2ca8ff;
}
.floor_2_main .parBd .sNext:hover i {
  background-position: -444px -9px;
}
.floor_2_main .parBd .body {
  padding-top: 552px;
}
.floor_2_main .parBd ul {
  position: relative;
  z-index: 5;
}
.floor_2_main .parBd ul li {
  width: 370px;
  margin-right: 40px;
}
.floor_2_main .parBd ul li .pic {
  position: relative;
  padding-top: 56.25%;
  display: block;
  width: 100%;
  overflow: hidden;
}
.floor_2_main .parBd ul li .on {
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  position: absolute;
  left: 0;
  top: 0;
  display: flex;
  z-index: 10;
  align-items: center;
  text-align: center;
  opacity: 0;
}
.floor_2_main .parBd ul li .on i {
  width: 55px;
  height: 55px;
  border-radius: 100%;
  background-position: -45px -394px;
  margin: 0 auto;
  transition: ease-in-out .2s;
  transform: translateY(20px);
}
.floor_2_main .parBd ul li .pic img {
  display: block;
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 9;
}
.floor_2_main .parBd ul li .title {
  margin-top: 20px;
}
.floor_2_main .parBd ul li .title h3 {
  font-size: 20px;
  color: #1d2541;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  margin-bottom: 15px;
}
.floor_2_main .parBd ul li:hover .title h3 {
  color: #245893;
}
.floor_2_main .parBd ul li:hover .pic .on {
  opacity: 1;
}
.floor_2_main .parBd ul li:hover .pic .on i {
  transform: translateY(0px);
}
.floor_2_main .parBd .body {
  overflow: hidden;
}
.floor_4_main {
  background: url(../images/f4_bg.jpg) center top no-repeat;
  background-size: cover;
  padding-bottom: 100px;
}
.floor_4_main .tit {
  padding-top: 130px;
  position: relative;
}
.floor_4_main .tit .index_title {
  position: absolute;
  left: 0;
  top: 130px;
}
.floor_4_main .tit .p {
  font-size: 18px;
  color: #666;
  width: 44%;
  margin: 0 auto;
  line-height: 34px;
}
.floor_4_main .picScroll-left {
  position: relative;
}
.floor_4_main .picScroll-left .prev,
.floor_4_main .picScroll-left .next {
  width: 61px;
  height: 61px;
  position: relative;
  z-index: 5;
  display: block;
  background: #66727f;
  border-radius: 100%;
  display: flex;
  text-align: center;
  align-items: center;
  position: absolute;
  right: 81px;
  cursor: pointer;
  top: -160px;
}
.floor_4_main .picScroll-left .prev i,
.floor_4_main .picScroll-left .next i {
  width: 22px;
  height: 7px;
  background-position: -419px -9px;
  margin: 0 auto;
}
.floor_4_main .picScroll-left .next {
  right: 0;
}
.floor_4_main .picScroll-left .next i {
  background-position: -444px -9px;
}
.floor_4_main .picScroll-left .prev:hover {
  background: #245893;
}
.floor_4_main .picScroll-left .next:hover {
  background: #245893;
}
.floor_4_main .picScroll-left .bd {
  margin-top: 90px;
}
.floor_4_main .picScroll-left .bd li {
  float: left;
  width: 400px;
  height: 401px;
  background: #fff;
  padding: 50px;
  margin-right: 50px;
  position: relative;
}
.floor_4_main .picScroll-left .bd li .img {
  position: relative;
  padding-top: 75%;
  display: block;
  width: 100%;
  overflow: hidden;
}
.floor_4_main .picScroll-left .bd li .img .on {
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  position: absolute;
  left: 0;
  top: 0;
  display: flex;
  z-index: 10;
  align-items: center;
  text-align: center;
  opacity: 0;
}
.floor_4_main .picScroll-left .bd li .img .on i {
  width: 55px;
  height: 55px;
  border-radius: 100%;
  background-position: -45px -394px;
  margin: 0 auto;
  transition: ease-in-out .2s;
  transform: translateY(20px);
}
.floor_4_main .picScroll-left .bd li .img img {
  display: block;
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
}
.floor_4_main .picScroll-left .bd li h3 {
  font-size: 24px;
  font-weight: bold;
  padding-top: 22px;
  padding-bottom: 16px;
}
.floor_4_main .picScroll-left .bd li span {
  font-size: 16px;
  color: #8e93a2;
}
.floor_4_main .picScroll-left .bd li .line {
  display: block;
  width: 100%;
  height: 3px;
  background: #245893;
  transition: ease-in-out .3s;
  position: absolute;
  left: 0;
  bottom: 0;
}
.floor_4_main .picScroll-left .bd li:hover .img .on {
  opacity: 1;
}
.floor_4_main .picScroll-left .bd li:hover .img .on i {
  transform: translateY(0px);
}
.floor_5_main {
  background: url(../images/f5_b1.jpg) center top no-repeat;
  background-size: cover;
  padding-bottom: 258px;
}
.floor_5_main .tit {
  padding-top: 150px;
  position: relative;
  margin-bottom: 120px;
}
.floor_5_main .tit .index_title {
  position: absolute;
  left: 0;
  top: 150px;
}
.floor_5_main .tit .p {
  font-size: 18px;
  color: #666;
  width: 44%;
  margin: 0 auto;
  line-height: 34px;
}
.floor_5_main .tit .more {
  background: #245893;
  width: 139px;
  line-height: 50px;
  height: 50px;
  text-align: center;
  border-radius: 25px;
  font-size: 16px;
  position: absolute;
  right: 0;
  top: 160px;
}
.floor_5_main .tit .more a {
  color: #fff;
  display: block;
  width: 100%;
  height: 100%;
}
.floor_5_main .tit .more i {
  width: 7px;
  height: 12px;
  background-position: -26px -183px;
  margin-left: 20px;
}
.floor_5_main .tit .more:hover {
  box-shadow: 5px 5px 5px rgba(0, 0, 0, 0.1);
}
.floor_5_main .body li {
  float: left;
  border-left: 1px solid #dde5eb;
  height: 90px;
  width: 30%;
  box-sizing: border-box;
  padding-left: 8%;
  transition: ease-in-out .2s;
}
.floor_5_main .body li h3 {
  color: #245893;
}
.floor_5_main .body li h3 b {
  font-size: 80px;
  line-height: 70px;
  float: left;
}
.floor_5_main .body li h3 span {
  font-size: 16px;
  vertical-align: top;
  width: 23px;
  display: block;
  float: left;
  line-height: 18px;
  padding-left: 5px;
  font-weight: bold;
}
.floor_5_main .body li p {
  font-size: 18px;
  color: #666;
  padding-top: 10px;
}
.floor_5_main .body li:hover {
  transform: translateY(-5px);
}
.floor_5_main .body li:first-child {
  border: none;
  padding-left: 0;
  width: 20%;
}
.floor_5_main .body li:nth-child(2) h3 i {
  font-style: inherit;
  font-size: 62px;
  font-weight: bold;
  vertical-align: top;
}
.floor_5_main .body li:nth-child(4) {
  width: 20%;
}
.floor_6_main {
  background: #245893;
  height: 510px;
}
.floor_6_main .left img {
  padding-bottom: 44px;
  height: 57px;
}
.floor_6_main .left h3 {
  font-size: 36px;
  color: #fff;
  font-weight: bold;
  line-height: 60px;
  padding-top: 120px;
}
.floor_6_main .right {
  width: 1000px;
  height: 560px;
  position: relative;
  margin-top: -150px;
}
.floor_6_main .right .bd {
  width: 100%;
  height: 560px;
  border-radius: 5px;
  overflow: hidden;
}
.floor_6_main .right .bd li {
  position: relative;
  width: 100%;
  height: 100%;
}
.floor_6_main .right .bd li img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.floor_6_main .right .bd li p {
  background: linear-gradient(to bottom, transparent, #000);
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 10;
  color: #fff;
  font-size: 30px;
  width: 100%;
  box-sizing: border-box;
  padding: 48px 170px 48px 48px;
}
.floor_6_main .prev,
.floor_6_main .next {
  width: 51px;
  height: 51px;
  position: relative;
  z-index: 10;
  display: block;
  background: #fff;
  border-radius: 100%;
  display: flex;
  text-align: center;
  align-items: center;
  position: absolute;
  right: 116px;
  cursor: pointer;
  bottom: 38px;
}
.floor_6_main .prev i,
.floor_6_main .next i {
  width: 22px;
  height: 7px;
  background-position: -419px 0;
  margin: 0 auto;
}
.floor_6_main .next {
  right: 50px;
}
.floor_6_main .next i {
  background-position: -444px -0px;
}
.floor_6_main .prev:hover {
  background: #2ca8ff;
}
.floor_6_main .prev:hover i {
  background-position: -419px -9px;
}
.floor_6_main .next:hover {
  background: #2ca8ff;
}
.floor_6_main .next:hover i {
  background-position: -444px -9px;
}
@media(max-width:1690px){
    .nav_main .list li .nav1{margin:0 25px;font-size:18px;}
}
@media (max-width: 1660px) {
  .w1600 {
    width: 1200px;
  }
  .index_title h3 {
    font-size: 40px;
  }
  .header_main .webLogo {
    left: 20px;
    top: 34px;
  }
  .nav_main .list li .nav1 {
    margin: 0 15px;
  }
  .nav_main {
    padding-right: 80px;
  }
  .header_main .webLogo img {
    height: 40px;
  }
  .floor_1 .item {
    padding-left: 30px;
    height: 300px;
  }
  .floor_1 .item img {
    width: 300px;
    right: 30px;
  }
  .floor_1 .item h3 {
    margin-top: 40px;
  }
  .floor_1 .item p {
    font-size: 14px;
  
  }
  .floor_2_main .parBd ul li .title h3 {
    font-size: 18px;
  }
  .floor_2_main .parBd ul li {
    margin-right: 45px;
  }
  .floor_4_main .tit .p {
    font-size: 16px;
  }
  .floor_4_main .picScroll-left .bd li {
    margin-right: 30px;
    width: 320px;
    padding: 30px;
    height: 350px;
  }
  .floor_4_main .picScroll-left .bd li h3 {
    font-size: 21px;
    padding-top: 30px;
  }
  .floor_4_main .picScroll-left .bd li img {
    height: 240px;
  }
  .floor_4_main .picScroll-left .prev,
  .floor_4_main .picScroll-left .next {
    top: -180px;
  }
  .floor_5_main {
    padding-bottom: 180px;
  }
  .floor_5_main .tit .p{font-size:16px;}
  .floor_5_main .body li h3 b {
    font-size: 70px;
  }
  .floor_5_main .body li:nth-child(4) {
    padding-left: 6%;
  }
  .floor_6_main .left h3 {
    font-size: 26px;
  }
  .floor_6_main .right {
    width: 780px;
    height: 437px;
    margin-top: -100px;
  }
  .floor_6_main .left img {
    height: 50px;
  }
  .floor_6_main .right .bd li p {
    font-size: 20px;
  }
  .floor_6_main {
    height: 420px;
  }
  .floor_3_main .bd li h3 {
    font-size: 22px;
  }
  .bottom_main .tel .left li {
    font-size: 14px;
  }
  .bottom_main .tel .right li:first-child {
    margin-right: 15px;
  }
  .h3 {
    font-size: 40px;
  }
  .sub_banner .tit {
    margin-left: -600px;
    width: 1200px;
    top: 50px;
  }
  .sub_menu {
    width: 1200px;
    bottom: 20px;
    margin-left: -600px;
  }
  .sub_banner .tit p {
    font-size: 20px;
  }
  .sub_banner .tit h3 {
    font-size: 35px;
  }
  .ab_3_main {
    padding-bottom: 270px;
  }
  .ab_3_main .swiper-slide .p {
    padding-right: 60px;
  }
  .ab_5_main li .txt p {
    font-size: 16px;
  }
  .yin_main .ying_1_main .item1 .txt {
    margin-left: 53%;
  }
  .yin_main .ying_1_main .item1 .pro {
    margin-left: 53%;
  }
  .yin_main .ying_1_main .item3 .txt {
    margin-left: 53%;
  }
  .yin_main .ying_1_main .item3 .pro {
    margin-left: 53%;
  }
  .yin_main .ying_1_main .item .txt h3 {
    font-size: 40px;
  }
  .ying_2_main .ab_title h3 {
    font-size: 40px;
  }
  .yin_main .ying_1_main .item .txt img {
    left: -150px;
  }
  .yin_main .ying_1_main .item1 .img {
    top: 270px;
    height: 430px;
    left: -50px;
  }
  .yin_main .ying_1_main .item2 .img {
    top: 0;
    height: 650px;
  }
  .yin_main .ying_1_main .item3 .img {
    height: 370px;
    left: -70px;
  }
  .nav_main .subNav .about_nav .about_left {
    width: 556px;
  }
  .nav_main .subNav .about_nav .about_left dl {
    margin-left: 50px;
  }
  .nav_main .subNav .about_nav .about_left dl:nth-child(3n+1) {
    margin-left: 0;
  }
}
.ab_1 {
  padding: 88px 0 99px;
}
.ab_1 .left {
  width: 52%;
}
.ab_1 .left h3 {
  font-size: 48px;
  font-weight: bold;
  padding-bottom: 27px;
  line-height: 48px;
}
.ab_1 .left .txt {
  font-size: 17px;
  line-height: 35px;
  height: 350px;
  overflow: auto;
  padding-right: 20px;
}
.ab_1 .left .txt::-webkit-scrollbar {
  width: 5px;
  height: 5px;
}
.ab_1 .left .txt::-webkit-scrollbar-thumb {
  width: 15px;
  border-radius: 15px;
  background: #245893;
}
.ab_1 .left .txt::-webkit-scrollbar-track {
  border-radius: 0;
  -webkit-box-shadow: inset 0 0 5px rgba(0, 0, 0, 0);
  background: #f5f5f5;
}
.ab_1 .left .txt img {
  max-width: 100%;
}
.ab_1 .right {
  width: 44%;
  position: relative;
}
.ab_1 .right img {
  width: 100%;
  display: block;
}
.ab_1 .right::before {
  content: "";
  position: absolute;
  width: 100px;
  height: 100%;
  top: 0;
  left: 0px;
  overflow: hidden;
  background: -moz-linear-gradient(left, rgba(255, 255, 255, 0) 0, rgba(255, 255, 255, 0.2) 50%, rgba(255, 255, 255, 0) 100%);
  background: -webkit-gradient(linear, left top, right top, color-stop(0%, rgba(255, 255, 255, 0)), color-stop(50%, rgba(255, 255, 255, 0.2)), color-stop(100%, rgba(255, 255, 255, 0)));
  background: -ms-linear-gradient(left, rgba(255, 255, 255, 0) 0, rgba(255, 255, 255, 0.2) 50%, rgba(255, 255, 255, 0) 100%);
  background: -webkit-linear-gradient(left, rgba(255, 255, 255, 0) 0, rgba(255, 255, 255, 0.2) 50%, rgba(255, 255, 255, 0) 100%);
  background: -o-linear-gradient(left, rgba(255, 255, 255, 0) 0, rgba(255, 255, 255, 0.2) 50%, rgba(255, 255, 255, 0) 100%);
  -webkit-transform: skewX(-32deg);
  -ms-transform: skewX(-32deg);
  -moz-transform: skewX(-32deg);
  transform: skewX(-32deg);
  opacity: 0;
}
.ab_1 .right:hover::before {
  -webkit-transition: left 1s;
  -moz-transition: left 1s;
  -ms-transition: left 1s;
  transition: left 1s;
  left: 120%;
  opacity: 1;
}
.ab_tit {
  padding: 94px 0 40px;
}
.ab_tit .left {
  line-height: 52px;
}
.ab_tit .left h3 {
  font-size: 48px;
}
.ab_tit .right a {
  border: 1px solid #d9d9d9;
  width: 200px;
  height: 50px;
  line-height: 50px;
  display: block;
  text-align: center;
  font-size: 18px;
  color: #999;
  border-radius: 5px;
}
.ab_tit .right a i {
  width: 5px;
  height: 9px;
  background-position: 0 -449px;
  margin-left: 13px;
  margin-bottom: 2px;
  transition: ease-in-out .2s;
}
.ab_tit .right a:hover {
  border: 1px solid #245893;
  color: #245893;
  box-shadow: 5px 5px 5px rgba(0, 0, 0, 0.1);
}
.ab_tit .right a:hover i {
  background-position: -8px -449px;
}
.ab_2_main {
  background: #245893;
  width: 100%;
  color: #fff;
}
.ab_2_main .ab_1 {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.ab_2_main .left {
  float: right;
  width: 65%;
}
.ab_2_main .left .txt::-webkit-scrollbar-thumb {
  background: #fff;
}
.ab_2_main .left .txt::-webkit-scrollbar-track {
  border-radius: 0;
  -webkit-box-shadow: inset 0 0 5px rgba(0, 0, 0, 0);
  background: #3775bb;
}
.ab_2_main .left .txt p {
  text-indent: 2em;
}
.ab_2_main .right {
  float: left;
  width: 30%;
  overflow: hidden;
}
.ab_3 .body {
  padding-bottom: 100px;
}
.ab_3 .body li {
  float: left;
  margin-left: 2%;
  width: 48%;
  background: #f8f8f8;
  border: 1px solid #d9d9d9;
  border-radius: 5px;
  box-sizing: border-box;

  padding: 40px;
  transition: ease-in-out .2s;
}
.ab_3 .body li:nth-child(3){width:60%;margin-left:20%; margin-top:50px;}
.ab_3 .body li img {
  width: 88px;
  height: 88px;
  object-fit: cover;
  object-position: center;
}
.ab_3 .body li h3 {
  font-size: 33px;
  color: #1a2232;
  margin-top: 10px;
  padding-bottom: 10px;
}
.ab_3 .body li .p {
  font-size: 22px;
  color: #333;
  line-height: 32px;
}
.ab_3 .body li .span{font-size:16px;line-height: 24px; padding-top:10px}
.ab_3 .body li:first-child {
  margin-left: 0;
}
.ab_3 .body li:hover {
  box-shadow: 5px 5px 5px rgba(0, 0, 0, 0.1);
  transform: translateY(-5px);
}
.about_4_main {
  background: url(../images/ab_4.jpg) center top no-repeat;
  background-size: cover;
}
.about_4_main .about_title {
  text-align: center;
  padding-bottom: 50px;
}
.about_4_main .index_title .left p {
  font-size: 16px;
  width: 600px;
  color: #666;
  font-weight: 400;
  padding-top: 8px;
}
.about_4_main .index_title .left h3 {
  color: #123d96;
}
.about_4_main .index_title .right {
  margin-top: 55px;
}
.about_4_main .hd {
  position: relative;
}
.about_4_main .hd h3 {
  padding-bottom: 60px;
}
.about_4_main .hd a {
  display: block;
  width: 90px;
  height: 45px;
  background: #ccc;
  position: absolute;
  right: 110px;
  cursor: pointer;
  z-index: 10;
  top: 10px;
}
.about_4_main .hd a i {
  width: 12px;
  height: 7px;
  background-position: -221px 0;
  display: block;
  margin: 19px auto 0;
}
.about_4_main .hd a.next {
  right: 0;
}
.about_4_main .hd a.next i {
  background-position: -239px -0;
}
.about_4_main .hd a:hover {
  background: #245893;
}
.about_4_main .bd {
  padding-bottom: 100px;
}
.about_4_main .bd_list {
  overflow: hidden;
  padding-bottom: 0;
}
.about_4_main .bd_list ul {
  width: 105%;
}
.about_4_main .bd li {
  background: #fff;
  width: 368px;
  border-bottom: 3px solid #fff;
  margin-right: 40px;
  margin-bottom: 2px;
  position: relative;
  border: 1px solid #ddd;float:left;
}
.about_4_main .bd_list li {
  float: left;
  margin-bottom: 40px;
}
.about_4_main .bd li .line {
  position: absolute;
  left: 0;
  bottom: -3px;
  height: 3px;
  width: 0;
  background: #245893;
  display: block;
}
.about_4_main .bd_list li:nth-child(4n) {
  margin-right: 0;
}
.about_4_main .bd li img {
  width: 317px;
  height: 228px;
  display: block;
  margin: 0 auto;
  padding-top: 28px;object-fit:cover;
  padding-bottom: 30px;
  border-bottom: 1px solid #ddd;
}
.about_4_main .bd li h3 {
  padding: 0 24px;
  font-size: 20px;
  padding-top: 15px;
  line-height: 36px;
  height: 36px;
  color: #333;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.about_4_main .bd li p {
  padding: 0 24px 35px;
  font-size: 16px;
  color: #999;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.about_4_main .bd li:hover .line {
  width: 100%;
  transition: ease-in-out 0.2s;
}
.about_4_main {
  padding-bottom: 100px;
  overflow: hidden;
}
.about_4_main .hd h3 {
  text-align: center;
}
.about_4_main .hd a {
  left: 50%;
  top: auto;
  bottom: -510px;
  margin-left: -100px;
}
.about_4_main .hd a.next {
  margin-left: 10px;
}

@media (max-width: 1660px) {
  .ab_tit .left h3 {
    font-size: 40px;
  }
  .ab_1 .left h1 {
    font-size: 30px;
  }
  .ab_1 .left .txt {
    font-size: 15px;
    line-height: 32px;
    height: 288px;
  }
  .ab_3 .body li h3 {
    font-size: 30px;
  }
  .ab_3 .body li .p {
    font-size: 18px;
  }
    .ab_3 .body li .span {
    font-size: 12px;
  }
  .about_4_main .bd li {
    margin-right: 15px;
  }
  .about_4_main .bd li {
    width: 285px;
  }
  .about_4_main .bd li img {
    width: 258px;
    height: 194px;
  }
  .about_4_main .hd a {
    bottom: -475px;
  }
  .product_main .product_body li .txt h3{font-size:18px;}
}
/*# sourceMappingURL=index.css.map */