:root {
  --blue: #0a4e95;
}

html,
body {
  margin: 0;
  padding: 0;
}

ul,
li {
  list-style: none;
  margin: 0;
  padding-left: 3.75rem;
}

a {
  text-decoration: none;
  color: #000;
}

a:hover {
  text-decoration: none;
  color: #000;
}

.content,
.section {
  max-width: 1400px;
  margin: 0 auto;
}

.navbar {
  background: none 0px 0px repeat scroll rgb(255, 255, 255);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  transition: 0.3s;
  z-index: 99;
  border-bottom: 1px solid #e5e5e5;
}

.navbar .navbar-content {
  display: flex;
  justify-content: space-between;
  width: 100%;
  height: 90px;
  align-items: center;
}

.menu {
  display: flex;
  justify-content: space-between;
  padding: 5px;
}

.navbar .navbar-content .logo_box {
  display: flex;
  align-items: center;
}

.navbar .navbar-content .logo_box .logo {
  width: 62px;
  height: 100%;
}

.navbar .navbar-content .logo_box .title {
  margin-left: 19px;
}

.navbar .navbar-content .logo_box .title h3 {
  line-height: 19px;
}

.navbar .navbar-content .logo_box .title h4 {
  line-height: 10px;
  font-size: 13px;
}

.banner {
  height: 90vh;
  background-color: rgb(214, 214, 214);
  position: relative;
}

.banner .mengceng {
  position: absolute;
  z-index: 1;
  background-color: rgba(0, 0, 0, 0.5);
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.banner .bg_video {
  height: 100%;
  width: 100%;
  object-fit: cover;
}



#scrollUp {
  background: #0a4e95 none repeat scroll 0 0;
  bottom: 30px;
  color: #fff;
  font-size: 30px;
  height: 40px;
  line-height: 40px;
  right: 30px;
  text-align: center;
  border-radius: 30px;
  width: 40px;
  animation: witr_bounce 0.8s ease-out infinite;
  position: fixed;
  z-index: 100;
}

#scrollUp .push {
  width: 21px;
  height: 25px;
}

@keyframes witr_bounce {

  0%,
  100%,
  20%,
  50%,
  80% {
    transform: translateY(0);
  }

  40% {
    transform: translateY(-10px);
  }

  60% {
    transform: translateY(-5px);
  }
}

.presale-header-top {
  background-color: var(--blue);
  color: #fff;
  padding: 9px 0;
  text-align: center;
  font-size: 1rem;
  font-weight: 600;
}

.header-top_box {
  display: flex;
  justify-content: space-between;
}

.header-top_box .phone {
  display: flex;
}

.header-top_box .phone img {
  width: 20px;
  height: 20px;
  margin-right: 8px;
}

.active {
  /* color: rgb(138, 131, 131) !important; */
}

.swiper-container {
  overflow: hidden;
}

#section_1 {
  background-color: var(--blue);
}

.jieshao {
  display: flex;
  justify-content: space-between;
  padding: 40px 0;
}

.jieshao .tags {
  text-align: center;
  width: 22%;
}

.jieshao .tags .tags_t {
  color: white;
  font-size: 14px;
  line-height: 20px;
}

.jieshao .tags .icon {
  width: 25%;
  margin-bottom: 20px;
}

#section4 {
  margin-top: 40px;
  background-color: white;
  padding: 60px;
}

#section4 .title_st4 {
  text-align: center;
  font-weight: 700;
  font-size: 36px;
  color: #040f1b;
  margin-bottom: 48px;
}

#section4 .about_box {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

#section4 .about_box .about {
  color: #666;
  line-height: 28px;
  font-weight: 400;
  font-size: 16px;
  width: 45%;
}

#section4 .about_box .about_img {
  position: relative;
  width: 40%;
}

#section4 .about_box .about_img img {
  border-radius: 10px;
  width: 100%;
  z-index: 1;
  position: relative;
}

#section4 .about_box .about_img .ab_bg {
  width: 240px;
  height: 240px;
  background: #336efc;
  border-radius: 6px;
  position: absolute;
  top: -42px;
  right: -48px;
}

#section1 .jj_box {
  margin-top: 50px;
  background-color: #f7f7f7;
  display: flex;
  justify-content: space-between;
}

#section1 .jj_box .title__box {
  width: 50%;
}

#section1 .jj_box .jjfan_box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  width: 163%;
  height: 500px;
}

#section1 .jj_box .jjfan_box .jjfa_tags img {
  width: 100%;
  height: 100%;

}

#section1 .title__box {
  padding: 60px;
}

#section1 .title__box .title__box_t {
  font-weight: 700;
  font-size: 36px;
  color: #040f1b;
  margin-bottom: 40px;
}

#section1 .title__box .jjfan_w {
  color: #666;
  line-height: 28px;
  font-weight: 400;
  font-size: 16px;
}

#section2 {
  margin-top: 120px;
  background-color: white;
}

#section2 .title_st2 {
  text-align: center;
  font-weight: 700;
  font-size: 36px;
  color: #040f1b;
  margin-bottom: 48px;
}

#section2 img {
  /* width: 120px; */
  height: 120px;
  object-fit: cover;
}

#section3 {
  margin-top: 120px;
}

#section3 .title_st3 {
  text-align: center;
  font-weight: 700;
  font-size: 36px;
  color: #040f1b;
  margin-bottom: 48px;
}

#section3 .anli_box {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  grid-gap: 20px;
}

#section3 .anli_box .anli_box_tags {

  border: 1px solid #ebeaea;
  padding: 15px;
}

#section3 .anli_box .anli_box_tags .anli_img {
  width: 100%;
  height: 250px;
  border: none;
  object-fit: cover;
}

#section3 .anli_box .anli_box_tags .anli_box_tags_t {
  font-size: 17px;
  font-weight: 700;
  line-height: 30px;
}

#section3 .anli_box .anli_box_tags .time {
  font-size: 14px;
  font-weight: 400;
  color: #bababa;
  line-height: 32px;
}

footer {
  background-color: var(--blue);
  padding: 30px;
  margin-top: 60px;
}

.footer_box {}

.footer_box .footer_box_top {
  display: grid;
  grid-template-columns: 1fr 1fr .5fr;
  justify-content: space-between;
  grid-gap: 20px;
}

.footer_box .footer_box_top .lxwm_box {
  color: white;
}

.footer_box .footer_box_top .lxwm_box .title {
  font-weight: bold;
}

.footer_box .footer_box_top .lxwm_box .itme {
  margin: 20px 0;
  display: flex;
  align-items: center;
}

.footer_box .footer_box_top .lxwm_box .itme img {
  margin-right: 10px;
}

.footer_box .footer_box_top .fzjg_box {
  color: white;
}

.footer_box .footer_box_top .fzjg_box .title {
  font-weight: bold;
}

.footer_box .footer_box_top .fzjg_box .itme_box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-gap: 20px;
  margin-top: 20px;
}

.footer_box .footer_box_top .fzjg_box .itme_box .item {
  white-space: nowrap;
}

.footer_box .footer_box_top .ewm_box img {
  width: 144px;
  margin-left: auto;
  display: block;
  margin-top: 8px;
}

.footer_box .footer_box_bottom {
  display: flex;
  justify-content: space-between;
  color: white;
  margin-top: 30px;
}

.process {
  margin: 79px 0;
}

.process .title {
  text-align: center;
  font-weight: 700;
  font-size: 36px;
  color: #040f1b;
  margin-bottom: 48px;
}

.process .history-warp {
  position: relative;
}

.process .history-warp::after {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  margin-top: -75px;
  width: 100%;
  height: 1px;
  background-color: #CECECE;
}

.process .inner2020 {
  width: 1458px;
  margin: 0px auto;
  overflow: hidden;
}

.process .inner2020 .swiper-container_process {
  height: 384px;
}

.process .inner2020 .swiper-container_process .swiper-wrapper .slide_item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.process .inner2020 .swiper-container_process .swiper-wrapper .slide_item .desc {
  text-align: start;
  margin: 0 40px;
}

.slide_item .desc .text {
  color: #999999;

  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
  font-size: 17px;
  font-family: 'PF Din Light';
  min-height: 66px;
  width: 187px;
}

.slide_item .desc .year {
  font-size: 22px;
  font-family: 'PF Din Light';
  color: #0a4e95;
  line-height: 1.5;
}



.slide_item .bor {
  position: absolute;
  display: block;
  left: 39px;
  top: 29%;
  margin-top: -6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: #0a4e95;
  border: 5px solid #4e9aeb;
}

.slide_item .bor::before {
  content: "";
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  position: absolute;
  left: 0%;
  top: 0%;
   background-color: #0a4e95;
  animation: bannerbuIn infinite linear 1.5s normal;
}
@keyframes bannerbuIn {
    0% {
        opacity: 1;
        filter: alpha(opacity=100);
        transform: scale(1);
    }

    100% {
        opacity: 0;
        filter: alpha(opacity=0);
        transform: scale(3);
    }
}
.slide_item .img_box {
  margin: 0;
  padding: 0px;
  border: 0;
  font-size: 100%;
  outline: none;
  position: relative;
  width: 213px;
  height: 110px;
  margin-top: 83px;
  transition: .3s;

}

.slide_item .img_box::before {
  content: "";
  position: absolute;
  left: 10%;
  width: 1px;
  height: 57px;
  background-color: #707070;
  opacity: 0.3;
  bottom: 103%;
}

.slide_item .img_box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 2px;
}
.article {
  margin-top: 40px;

}
.article .article_header{
  text-align: center;
}
.article .article_header div{
  color: #707070;
  font-size: 16px;
}
.article .content{
  margin-top: 20px;
  background-color: #f7f7f7;
  padding: 20px;
}
.article .content video{
max-width: 40%;
margin: 0 auto;
display: block;
}