.w {
  width: 1200px;
  margin: 0 auto;
}
.nav {
  display: flex;
  background: #2b2b2b;
}
/* .nav img {
  padding: 22px 8% 22px 14%;
} */
.nav .nav-ul {
  width: 52%;
  display: flex;
  padding: 44px 0;
  color: #fff;
}
.nav .nav-ul a {
  color: #fff;
}
.nav .nav-ul li {
  position: relative;
  width: 100%;
  text-align: center;
  overflow: hidden;
  height: 42px !important;
}
.nav .nav-ul li p {
  font-size: 12px;
}
.nav .nav-ul i {
  position: absolute;
  background: url(../images/line.png);
  width: 1px;
  height: 16px;
  left: 99%;
  top: 3px;
}
.nav .nav-ul li:hover::before {
  height: 43px;
  content: "";
  position: absolute;
  top: -50%;
  right: -50%;
  bottom: -50%;
  left: -50%;
  background: linear-gradient(
    to bottom,
    rgba(229, 172, 142, 0),
    rgba(255, 255, 255, 0.5) 50%,
    rgba(229, 172, 142, 0)
  );
  transform: rotateZ(60deg) translate(-5em, 9em);
}
.nav .nav-ul li:hover::before,
.nav .nav-ul li:focus::before {
  animation: sheen 2s forwards;
}
.nav .nav-ul li:hover i {
  width: 0;
}
.nav .nav-ul li:hover {
  box-shadow: inset 1px 1px 5px rgba(0, 0, 0, 0.4),
    0 0 10px rgba(255, 255, 255, 0.7);
}
@keyframes sheen {
  100% {
    transform: rotateZ(60deg) translate(1em, -9em);
  }
}
.banner {
  width: 100%;
}
.banner img {
  width: 100%;
}
.product {
  height: 1140px;
  background: url(../images/bg.png);
}
.product .centers {
  text-align: center;
  padding-top: 60px;
}
.product .centers h2 {
  font-size: 36px;
  font-weight: 700;
}
.product .centers .product-ul {
  display: flex;
  flex-wrap: wrap;
}
.product .centers .product-ul li {
  display: flex;
  flex-direction: column;
  width: 386px;
  height: 436px;
  box-shadow: 2.84px 0.98px 17.82px 0.03px rgba(0, 0, 0, 0.24);
  margin-right: 20px;
  margin-bottom: 34px;
  background-color: #fff;
}
.product .centers .product-ul li .li-top {
  position: relative;
  overflow: hidden;
}
.product .centers .product-ul li .li-top img {
  width: 386px;
  height: 316px;
}
.product .centers .product-ul li .li-top .hide {
  display: none;
  position: absolute;
  top: 0;
  left: 0;
  width: 386px;
  height: 316px;
  background: rgba(0, 0, 0, 0.6);
}
.product .centers .product-ul li .li-top .hide p {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #fff;
  font-size: 24px;
}
.product .centers .product-ul li .li-top .hide p::after,
.product .centers .product-ul li .li-top .hide p::before {
  content: "";
  position: absolute;
  bottom: -22%;
  left: 50%;
  transform: translateX(-50%);
  width: 50%;
  height: 1px;
  background: #fff;
}
.product .centers .product-ul li .li-top .hide p::before {
  top: -22%;
  left: 50%;
}
.product .centers .product-ul li .li-middle {
  text-align: left;
  padding: 12px 12px 0 12px;
}
.product .centers .product-ul li .li-middle .pn {
  font-size: 24px;
  color: #000;
  font-weight: 700;
}
.product .centers .product-ul li .li-middle .pt {
  font-size: 16px;
  color: #000;
  font-weight: 550;
}
.product .centers .product-ul li .li-bottom {
  display: flex;
  justify-content: space-between;
  padding: 0 12px;
}
.product .centers .product-ul li .li-bottom span {
  font-size: 14px;
  color: #333;
  font-weight: 550;
}
.product .centers .product-ul li .li-bottom img {
  height: 10px;
  margin-top: 5px;
}
.product .centers .product-ul li:nth-child(3n) {
  margin-right: 0;
}
.product .centers .product-ul li:hover .hide {
  display: inline;
}
.product .centers .product-ul li:hover .li-top img {
  transform: scale(1.2);
}
.product .centers .product-p {
  font-size: 18px;
  font-weight: 700;
  margin: 12px 0 18px 0;
}
.technology {
  position: relative;
  height: 800px;
  background: url(../images/showbg.png);
  padding-left: 20%;
  color: #fff;
}
.technology .pnp {
  font-size: 42px;
  font-style: italic;
  padding-top: 90px;
}
.technology .sketch {
  font-style: italic;
  font-size: 72px;
  margin-bottom: 20px;
}
.technology .ptp,
.technology .pthp {
  font-size: 18px;
  margin-bottom: 10px;
  letter-spacing: 0.1rem;
}
.technology .technology-ul {
  letter-spacing: 0.12rem;
}
.technology .technology-ul .lin {
  position: absolute;
  top: 63%;
  left: 28%;
}
.technology .technology-ul .lit {
  position: absolute;
  top: 63%;
  left: 47%;
}
.technology .technology-ul .lith {
  position: absolute;
  top: 63%;
  left: 66.5%;
}
.technology .technology-ul .titlep {
  font-size: 24px;
  padding-top: 28%;
  padding-bottom: 8%;
  margin-left: -25%;
}
.technology .technology-ul .titlept {
  padding-bottom: 7%;
  margin-left: -35%;
}
.technology .technology-ul .titlepth {
  margin-left: -44%;
}
.about {
  width: 100%;
  height: 635px;
  background: url(../images/about.png);
  padding: 0 15%;
  color: #fff;
  letter-spacing: 0.11rem;
}
.about h2 {
  padding-top: 88px;
  padding-bottom: 24px;
  text-align: center;
}
.about .aboutpn {
  text-align: center;
}
.about .about-content {
  display: flex;
  margin-top: 66px;
}
.about .about-content .div-left {
  width: 58%;
}
.about .about-content .div-left h3 {
  text-align: left;
  font-weight: 400;
  font-size: 24px;
  margin-top: 12px;
  margin-bottom: 24px;
}
.about .about-content .div-left .introduce {
  font-size: 15px;
  width: 96%;
  line-height: 26px;
}
.about .about-content .div-left .more {
  display: inline-block;
  font-size: 16px;
  color: #fff;
  line-height: 22px;
  border: 1px solid #ffffff;
  letter-spacing: -0.96px;
  padding: 12px 38px;
  margin-top: 34px;
}
.about .about-content .div-left .more:hover{
    background: #a1c4fd;
    border: 1px solid #a1c4fd;
    background-image: linear-gradient(120deg, #a1c4fd 0%, #c2e9fb 100%);
}
.about .about-content .div-right {
  width: 40%;
  height: 310px;
  margin-top: -6px;
}
.about .about-content .div-right img {
  width: 100%;
  height: 100%;
}
.details {
  width: 1400px;
  height: 146px;
  background: #fff;
  box-shadow: 2.84px 0.98px 17.82px 0.03px rgba(0, 0, 0, 0.24);
  text-align: center;
  margin: 0 auto;
  margin-top: -4%;
}
.details ul {
  display: flex;
  justify-content: space-between;
  width: 100%;
  height: 146px;
}
.details ul li {
  position: relative;
  display: flex;
  height: 100%;
  flex-direction: column;
  margin: 0 auto;
  padding-top: 2%;
}
.details ul li .informationpn {
  color: #f13737;
  font-weight: 600;
}
.details ul li .informationpn span {
  font-size: 42px;
}
.details ul li .informationpn sup {
  position: relative;
  font-size: 20px;
  top: -8px;
}
.details ul li .informationpt {
  color: #000;
  font-weight: 600;
}
.details ul i::after {
  position: absolute;
  top: 25%;
  left: 192%;
  content: "";
  background: url(../images/details.png);
  width: 1px;
  height: 86px;
  opacity: 0.3;
  background: #000000;
}
.details ul li:nth-child(4) i::after {
  width: 0;
}
.details ul li .informationpn #num::after {
    position: absolute;
    top: 18%;
    left: 68%;
    content: "+";
    font-size: 21px;
}
.details ul li .informationpn #two::after {
    position: absolute;
    top: 17%;
    left: 85% !important;
    content: "+";
    font-size: 24px;
}
.details ul li .informationpn #three::after {
    position: absolute;
    top: 18%;
    left: 60% !important;
    content: "+";
    font-size: 24px;
}
.news {
  text-align: center;
}
.news h2 {
  font-size: 32px;
  margin-top: 80px;
}
.news h3 {
  margin-top: 8px;
  margin-bottom: 112px;
}
.news .news-bottom {
  margin-left: 18%;
  text-align: left;
}
.news .news-bottom .news-d a {
  width: 78%;
  display: flex;
  padding-bottom: 2%;
  border-bottom: 2px solid #b5b5b5;
  margin-bottom: 3%;
}
.news .news-bottom .news-d .dn {
  width: 12%;
}
.news .news-bottom .news-d .dn div {
  width: 108px;
  background: #e5e5e5;
  color: #fff;
  text-align: center;
}
.news .news-bottom .news-d .dn div .date {
  font-size: 52px;
  font-weight: 700;
}
.news .news-bottom .news-d .dn div .years {
  font-size: 22px;
  height: 36px;
}
.news .news-bottom .news-d .dt {
  position: relative;
  width: 75%;
  padding-top: 1%;
}
.news .news-bottom .news-d .dt h3 {
  margin: 0;
  letter-spacing: 1px;
}
.news .news-bottom .news-d .dt img {
  display: inline-block;
}
.news .news-bottom .news-d .dt span {
  position: relative;
  top: 2px;
  color: #b5b5b5;
}
.news .news-bottom .news-d .dt p {
  margin: 8px 0 8px -2.2rem;
  color: #333;
  letter-spacing: 0.4px;
  text-overflow: ellipsis;
  overflow: hidden;
  word-break: break-all;
  white-space: nowrap;
}
.news .news-bottom .news-d .dth {
  text-align: right;
  width: 13%;
  position: relative;
  background: url(../images/triangle1.png) no-repeat;
  background-position: 88% 60%;
}
.news .news-bottom .news-d:hover .dn div {
  background: #000;
}
.news .news-bottom .news-d:hover .dth {
  position: relative;
  background: url(../images/triangle.png) no-repeat;
  background-position: 88% 60%;
}
.footer {
  display: flex;
  justify-content: space-around;
  margin-top: 5%;
  height: 366px;
  color: #fff;
  background: #000000;
  padding-top: 60px;
}
.footer .footer-n {
  width: 28%;
}
.footer .footer-n div {
  width: 88%;
  border-bottom: 1px solid #fff;
  padding-bottom: 35px;
  margin-bottom: 44px;
}
.footer .footer-n div span {
  font-size: 32px;
  letter-spacing: 2px;
}
.footer .footer-n div sub {
  font-size: 16px;
}
.footer .footer-n p {
  font-size: 18px;
  margin: 10px 0;
}
.footer .footer-t {
  width: 28%;
}
.footer .footer-t div {
  width: 88%;
  border-bottom: 1px solid #fff;
  padding-bottom: 35px;
  margin-bottom: 44px;
}
.footer .footer-t div span {
  font-size: 32px;
  letter-spacing: 2px;
}
.footer .footer-t div sub {
  font-size: 16px;
}
.footer .footer-t ul {
  display: flex;
  flex-wrap: wrap;
}
.footer .footer-t ul li {
  width: 33%;
  margin-bottom: 18px;
}
.footer .footer-t ul li a {
  color: #fff;
}
.footer .footer-h {
  width: 16%;
}
.footer .footer-h div {
  width: 88%;
  border-bottom: 1px solid #fff;
  padding-bottom: 35px;
  margin-bottom: 22px;
}
.footer .footer-h div span {
  font-size: 32px;
  letter-spacing: 2px;
}
.footer .footer-h div sub {
  font-size: 16px;
}
.footer .footer-h img {
  margin-left: 22%;
  margin-bottom: 3%;
}
.footer .footer-h p {
  margin-left: 26%;
  letter-spacing: 0.11rem;
}