.w {
  width: 1200px;
  margin: 0 auto;
}
.nav {
  position: absolute;
  top: 0;
  left: 0;
  display: flex;
  width: 100%;
  height: 70px;
  z-index: 99;
  border-bottom: 1px solid #fff;
}
.nav .nav-left {
  margin-left: 8%;
  width: 20%;
}
.nav .nav-center {
  flex: 1;
}
.nav .nav-center ul {
  display: flex;
  line-height: 70px;
  justify-content: space-around;
}
.nav .nav-center ul li {
  margin: 0 2%;
}
.nav .nav-center ul li a {
  color: #fff;
}
.nav .nav-center ul li:hover {
  margin-top: -2px;
  border-bottom: 3px solid #fff;
}
.nav .nav-right span {
  position: relative;
  top: 3px;
  font-size: 20px;
  color: #fff;
  padding: 30px 30px 30px 0;
}
.nav .nav-right i {
  position: relative;
  font-size: 28px;
  top: 7px;
  margin-left: 4px;
}
.banner {
  max-width: 1920px;
  overflow: hidden;
}
.banner img {
  width: 100%;
}
.product {
  position: relative;
  max-width: 1920px;
  background: url(../images/bg.png);
  height: 767px;
  text-align: center;
  overflow: hidden;
}
.product h2 {
  padding: 30px 0 12px 0;
  font-size: 110px;
  color: #cc0000;
}
.product .pro-p {
  position: absolute;
  font-size: 48px;
  font-weight: 600;
  opacity: 0.3;
  margin-left: 38%;
  margin-top: -2.9%;
}
.product h3 {
  font-size: 29px;
  margin-top: -2.5%;
}
.product p {
  font-size: 18px;
  margin-top: 10px;
  margin-bottom: 3.6%;
  font-weight: 600;
}
.about {
  width: 100%;
  height: 1573px;
  background: url(../images/bg2.png);
  padding: 0 15%;
  color: #fff;
  letter-spacing: 0.11rem;
  text-align: center;
}
.about h2 {
  padding: 30px 0 12px 0;
  font-size: 110px;
  color: #cc0000;
}
.about .pro-p {
  position: absolute;
  font-size: 48px;
  font-weight: 600;
  opacity: 0.3;
  margin-left: 28%;
  margin-top: -2.5%;
}
.about h3 {
  font-size: 34px;
  margin-top: -3%;
}
.about .about-content {
  display: flex;
  margin-top: 8%;
}
.about .about-content .div-left {
  width: 46%;
}
.about .about-content .div-left h3 {
  text-align: left;
  font-weight: 400;
  font-size: 24px;
  margin: 12px 0;
}
.about .about-content .div-left .about-p {
  font-size: 18px;
  font-weight: 600;
  color: #ff0000;
  margin: 28px 0 12px 0;
  text-align: initial;
}
.about .about-content .div-left .introduce {
  font-size: 15px;
  width: 96%;
  line-height: 26px;
  text-align: initial;
}
.about .about-content .div-left .more {
  display: inline-block;
  font-size: 16px;
  color: #fff;
  background: linear-gradient(#ff0000 0%, #bd0000 100%);
  border: 1px solid #ff0000;
  letter-spacing: -0.96px;
  padding: 4px 38px;
  border-radius: 24px;
  margin-left: -78%;
  margin-top: 20px;
}
.about .about-content .div-left .more:hover {
  color: #000;
  background: #fff;
  border: 1px solid #fff;
}
.about .about-content .div-right {
  width: 42%;
  height: 440px;
  margin-top: -2%;
}
.details {
  width: 1400px;
  height: 152px;
  background: #fff;
  box-shadow: 2.84px 0.98px 17.82px 0.03px rgba(0, 0, 0, 0.24);
  margin: 0 auto;
  margin-top: -33%;
  margin-left: 15%;
  background: linear-gradient(0deg, #bd0000 0%, #ff0000 100%);
}
.details ul {
  display: flex;
  justify-content: space-between;
  width: 100%;
  height: 152px;
  color: #fff;
}
.details ul li {
  position: relative;
  display: flex;
  height: 100%;
  flex-direction: column;
  margin: 0 auto;
  padding-top: 2%;
}
.details ul li .informationpn span {
  font-size: 42px;
}
.details ul li .informationpn sup {
  position: relative;
  font-size: 20px;
  top: -8px;
}
.details ul li .informationpt::after {
  position: absolute;
  top: 25%;
  left: -20%;
  content: "";
  background: url(../images/details.png);
  width: 3px;
  height: 86px;
}
.gd {
  width: 100%;
  height: 352px;
  margin: 68px 0;
  overflow: hidden;
}
.gd ul {
  display: flex;
}
.gd ul li {
  display: flex;
  margin-right: 15px;
  animation: marquee 12s linear infinite;
}
.gd ul li:hover p {
  box-shadow: inset 1px 1px 5px rgba(0, 0, 0, 0.4),
    0 0 10px rgba(255, 255, 255, 0.6);
}
.gd ul li img {
  width: 380px;
  height: 298px;
}
.gd p {
  font-size: 22px;
  color: #fff;
  font-weight: 600;
  text-align: center;
  padding: 6px;
  margin-top: 6px;
}
@keyframes marquee {
  0% {
    transform: translateX(0);
  }

  100% {
    transform: translateX(-328%);
  }
}
.serve {
  width: 100%;
  background: url(../images/bg3.png);
  height: 888px;
  text-align: center;
}
.serve h2 {
  padding: 16px 0 12px 0;
  font-size: 110px;
  color: #cc0000;
}
.serve .pro-p {
  position: absolute;
  font-size: 48px;
  font-weight: 600;
  opacity: 0.3;
  margin-left: 38%;
  margin-top: -2.9%;
}
.serve h3 {
  font-size: 34px;
  margin-top: -2.4%;
}
.serve .serve-p {
  font-size: 18px;
  margin-top: 10px;
  font-weight: 600;
}
.serve ul {
  display: flex;
  width: 1260px;
  flex-wrap: wrap;
  text-align: center;
  margin: 0 auto;
  margin-top: 34px;
}
.serve ul li {
  display: flex;
  flex-direction: column;
  width: 307px;
  height: 260px;
  color: #fff;
  background: #000000;
  margin-right: 10px;
  margin-top: 12px;
}
.serve ul li:nth-child(4n) {
  margin-right: 0;
}
.serve ul li img {
  margin: 45px 102px 28px 102px;
}
.serve ul li .ser-pn {
  font-size: 20px;
  margin-bottom: 6px;
}
.serve ul li .ser-pt {
  font-size: 12px;
}
.serve ul .fft {
  background: #ff0000;
}
.news {
  width: 100%;
  height: 770px;
  text-align: center;
}
.news h2 {
  padding: 30px 0 12px 0;
  font-size: 110px;
  color: #cc0000;
}
.news .pro-p {
  position: absolute;
  font-size: 48px;
  font-weight: 600;
  opacity: 0.3;
  margin-left: 35.4%;
  margin-top: -2.9%;
}
.news h3 {
  font-size: 34px;
  margin-top: -2.4%;
}
.news .serve-p {
  font-size: 18px;
  margin-top: 10px;
  font-weight: 600;
}
.news-list {
  width: 1200px;
  display: flex;
  flex-wrap: wrap;
  margin: 0 auto;
  margin-top: 36px;
}
.news-list .list-item {
  display: inline-block;
  width: 590px;
  height: 130px;
  background: #fafafa;
  padding: 0 30px;
  color: #000;
  font-size: 14px;
  font-weight: 600;
  margin: 10px 10px 0 0;
}
.news-list .list-item .icon {
  margin-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.news-list .list-item .icon .icon1 {
  display: flex;
  align-items: center;
}
.news-list .list-item .icon .icon1 .sanjiao {
  width: 0;
  height: 0;
  margin-right: 6px;
  border-top: 7px solid transparent;
  border-left: 14px solid red;
  border-bottom: 7px solid transparent;
}
.news-list .list-item .text {
  margin-top: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  display: -moz-box;
  -moz-line-clamp: 2;
  -moz-box-orient: vertical;
  overflow-wrap: break-word;
  word-break: break-all;
  white-space: normal;
  overflow: hidden;
}
.news-list .list-item:hover {
  background: #f42020;
  color: #fff;
}
.news-list .list-item:hover .sanjiao {
  width: 0;
  height: 0;
  margin-right: 6px;
  border-top: 7px solid transparent;
  border-left: 14px solid #fff !important;
  border-bottom: 7px solid transparent;
}
.contactn {
  position: relative;
  width: 100%;
  height: 358px;
  background: #000000;
  text-align: center;
  color: #fff;
  padding-top: 1%;
}
.contactn-p {
  font-size: 42px;
  padding: 44px 0 12px 0;
}
.contactn h2 {
  padding: 10px 0 12px 0;
  font-size: 110px;
  color: #cc0000;
}
.contactn .pro-p {
  position: absolute;
  font-size: 48px;
  font-weight: 600;
  opacity: 0.3;
  margin-left: 41.7%;
  margin-top: -2.9%;
}
.contactn h3 {
  font-size: 36px;
  margin-top: -2.5%;
}
.contactn .serve-p {
  font-size: 18px;
  margin-top: 10px;
}
.contactn .contacts {
  display: flex;
  justify-content: space-around;
  margin-top: 54px;
}
.contactn .contacts .contact-n {
  width: 35%;
  margin-top:-2%;
}
.contact-n div {
  border-bottom: 1px solid #fff;
  padding-bottom: 35px;
  margin-bottom: 44px;
}
.contact-n div span {
  font-size: 38px;
  letter-spacing: 2px;
  font-weight: 600;
}
.contact-n div sub {
  font-size: 16px;
}
.contact-n ul {
  display: flex;
  flex-wrap: wrap;
}
.contact-n ul li {
  width: 33%;
  margin-bottom: 18px;
}
.contact-n ul li a {
  color: #fff;
}
.contactn .contacts .contact-n ul li:nth-child(1) {
  margin-bottom: 15px;
}
.contactn .contacts .contact-t {
  width: 25%;
  display: flex;
  flex-direction: column;
  justify-content: end;
}
.contactn .contacts .contact-t ul {
  display: flex;
  flex-direction: column;
  flex-wrap: wrap;
}
.contactn .contacts .contact-t ul li {
  display: flex;
}
.contactn .contacts .contact-t ul li .li-left {
  margin-right: 6%;
}
.contactn .contacts .contact-t ul li .li-left img {
  width: 38px;
  height: 38px;
}
.contactn .contacts .contact-t ul li .li-right {
  display: flex;
  flex-direction: column;
  text-align: left;
}
.contactn .contacts .contact-th {
  width: 20%;
}
.contactn .contacts .contact-th p {
  font-size: 18px;
  margin-top: 2%;
}
.main-carousel {
  display: flex;
  height: 500px;
}
.carousel-cell {
  display: flex;
}
.item-d {
  display: flex;
  height: 303px;
  padding-top: 8%;
}
.item-l {
  width: 48%;
  overflow: hidden;
}
.item-r {
  width: 48%;
  text-align: left;
}
.product .item-r .pfs {
  margin: 10px 0 10px 0;
  width: 96%;
  display: -webkit-box;
  -webkit-box-orient: vertical; 
  text-overflow: ellipsis;
  -webkit-line-clamp: 2;
  overflow : hidden;
}
.product .item-r .pf {
  margin: 10px 0 8% 0;
}
.product .swiper-slide:hover {
  background: #2d2d2d;
  margin-top: -44px;
}
.product .swiper-slide {
  background: #fff;
}

.product .swiper-slide:hover .item-d {
  color: #fff;
}
.product .swiper-slide:hover .imgt {
  background: url(../images/b.png);
  width: 37px;
  height: 37px;
  z-index: 11;
}
.secondary {
  display: none;
  position: absolute;
  /*width: 188px;*/
  height: 58px !important;
  background: #212224;
  border-bottom: 1px solid #fff;
}
.secondary p{
  width: 100%;
  border-bottom: 1px solid #fff !important;
}
.secondary a {
  display: inline-block;
  line-height: 42px !important;
  padding:0 10px;
  background: #212224;
  color: #fff;
}
.secondary a:hover {
  color: #fff;
}
.li-itemt:hover .secondary{
  display: block;
  position: relative;
}