@font-face {
  font-family: "D-DIN-Bold";
  src: url("../font/D-DIN-Bold.otf");
}

@font-face {
  font-family: "D-DIN";
  src: url("../font/D-DIN.otf");
}

* {
  margin: 0;
  padding: 0;
  font-family: '思源雅黑';
}

.font-b {
  font-weight: bold;
}

.font-l {
  font-weight: normal;
}

body, html {
  overflow-x: hidden;
}

body {
  background: linear-gradient(90deg, rgba(245, 246, 247, 1) 0%, rgba(238, 239, 240, 1) 100%);
  /*overflow: hidden;*/
}

.nowrap {
  white-space: nowrap;
}

.menu {
  position: absolute;
  width: 100vw;
}

.center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.hidden {
  display: none;
}

.menu > div {
  max-width: 1200px;
  margin: 0 auto;
  height: 100%;
}

#top {
  background-color: #000000;
  height: 70px;
  position: fixed;
  z-index: 99999;
}

.logo {
  position: absolute;
  height: 100%;
}

.logo img {
  position: relative;
  height: 2.5rem;
  transform: translateY(-50%);
  top: 50%;
  left: 1rem;
}

.nav-text {
  width: fit-content;
  margin: auto;
  float: right;
  height: 100%;
}

.nav-titles {
  padding: 0;
  margin: 0;
  height: 100%;
}

.nav-title {
  display: inline-block;
  text-align: center;
  align-content: space-evenly;
  /*width: 110px;
  color: white;*/
  vertical-align: top;
}

.nav-title span {
  color: #f2f2f2;
  text-align: center;
  margin: auto 16px;
  text-decoration: none;
  align-items: flex-end;
  border-bottom: 3px solid rgba(0, 0, 0, 0);
}

.nav-title:hover {
  cursor: pointer;
  /*border-bottom: 3px solid white;*/
  transition-duration: 1s;
}

.nav-link-check {
  color: #296AEF !important;
  border-bottom: 3px solid #296AEF !important;
}

.nav-link:hover {
  color: #296AEF;
  border-bottom: 3px solid #296AEF;
}

.nav-link:hover ~ .nav-substitle {
  display: block;
}

.nav-substitle:hover {
  display: block;
}

.checkbtn {
  color: white;
  float: right;
  line-height: 70px;
  margin-right: 40px;
  cursor: pointer;
  display: none;
}

#check {
  display: none;
}

.center-vertical {
  position: relative;
  top: 50%;
  transform: translateY(-50%);
  text-align: left;
}

.center-horizontal {
  position: relative;
  left: 50%;
  transform: translateX(-50%);
}

.logo-content {
  padding: 5px 0;
}

.logo-content img {
  height: 3rem;
}

.mirrorRotateLevel {
  transform: rotateY(180deg); /* 水平镜像翻转 */
}

.content {
  position: relative;
  margin-top: -10rem;
}

._main {
  max-width: 1200px;
  margin: 0 auto;
}

#business {
  padding-top: 6rem;
}

.background {
  position: relative;
  width: 100%;
  height: 40rem;
  z-index: -999;
  overflow: hidden;
  background-position: top;
}

.slogan {
  position: absolute;
  text-align: center;
  margin: auto 0;
  top: 36%;
  width: 100%;
  height: 100%;
  color: rgba(255, 255, 255, 1);
  vertical-align: top;
  justify-items: center;
  z-index: 2;
}

.slogan h1 {
  letter-spacing: 10px;
  color: white;
}

.slogan h2 {
  color: white;
  line-height: 43px;
}

.background > img {
  object-fit: cover;
  -webkit-animation-name: amplify;
  z-index: -999;
  -webkit-animation: amplify 5s ease-in-out 0s 1 alternate forwards;
}

.background::before {
  content: " ";
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
}

.background > img, .background::before {
  width: 100%;
  height: 100%;
}

@-webkit-keyframes breathe {
  100% {
    background-color: rgba(0, 0, 0, .3);
  }
  0% {
    background-color: rgba(0, 0, 0, .7);
  }
}

@-webkit-keyframes amplify {
  100% {
    transform: scale(1.15);
  }
  0% {
    transform: scale(1);
  }
}

.business-grid {
  display: grid;
}

.business {
  background-repeat: no-repeat;
  padding: 0;
  background-color: #D0E1FF;
  background-size: cover;
  text-decoration: none;
  transform: scaleX(1);
  transition: transform 0.5s;
}

.business-desc {
  grid-column: span 2 / span 2;
}

/*
.business-desc-title {
  font-size: xxx-large;
}

.business-desc-content {
  font-size: larger;
}

.business-title {
  font-size: xx-large;
}*/

.business-content {
  height: calc(1em * 2 * 1.5);
  white-space: normal;
  display: -webkit-box;
  overflow: hidden;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  margin-top: 0.5rem;
}

.business-desc .business-span {
  /*padding: 5.6vw 0 0 1.5vw*/
}

.business .business-span {
  bottom: 1vw;
  left: 1vw;
}

.business, .business-desc, .partner-logo, .certificate {
  transition: all 0.5s;
}

.business:hover, .business-desc:hover, .partner-logo:hover, .certificate:hover {
  z-index: 2;
  transform: scale(1.05);
  transition: transform 0.5s;
}

.business > div, .business-desc > div {
  height: 100%;
  width: 100%;
  background: linear-gradient(0deg, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.5) 20%, rgba(0, 0, 0, 0.1) 40%, rgba(0, 0, 0, 0) 60%);
  position: absolute;
  display: inline-flex;
  flex-direction: column;
  bottom: 0;
}

.business:first-child {
  margin-left: 0;
}

.business-span {
  display: flex;
  flex-direction: column;
  justify-content: start;
  mix-blend-mode: normal;
  color: white;
  opacity: 1;
  letter-spacing: 0px;
  white-space: pre-wrap;
  width: 80%;
}

.business .business-span {
  position: absolute;
}

.background-content {
  position: absolute;
  width: 100%;
  height: 100%;
  margin-top: -1rem;
  z-index: -1;
  object-fit: cover;
}

.background-content-scroll {
  position: fixed;
  top: 0;
  margin-top: 0;
}

.about {
  position: relative;
}

.about-title {
  display: inline;
  letter-spacing: 0px;
  color: #296AEF;
  text-align: left;
  vertical-align: top;
  padding: 8px 0
}

.border-top {
  border-top: 6px solid #296AEF !important;
}

.about-content {
  text-indent: 2em;
  letter-spacing: 0px;
  line-height: 50px;
  color: rgba(51, 51, 51, 1);
  text-align: left;
  vertical-align: top;
}

.flex {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

.grid {
  display: grid;
}

.relative {
  position: relative;
}

.about-desc {
  flex: 1 1 auto;
}

.about-title {
  height: 105px;
  line-height: 105px;
}

.about-desc-title {
  letter-spacing: 0px;
  line-height: 52px;
  color: rgba(51, 51, 51, 1);
  text-align: left;
  vertical-align: top;
}

.about-desc-line {
  border-bottom: solid 1px rgba(51, 51, 51, 1);
}

.about-desc-content {
  color: rgba(41, 106, 239, 1);
  opacity: 1;
  font-family: 'D-DIN';
  letter-spacing: 0px;
  white-space: nowrap;
}

.about-desc-unit {
  letter-spacing: 0px;
  line-height: 52px;
  color: rgba(51, 51, 51, 1);
  text-align: left;
  vertical-align: text-before-edge;
}

.develop {
  text-align: center;
}

.develop > div {
  width: 100%;
}

.develop-title {
  letter-spacing: 0px;
  color: rgba(51, 51, 51, 1);
}

.develop-content {
  letter-spacing: 0px;
  line-height: 44px;
  color: rgba(51, 51, 51, 1);
  vertical-align: top;
}

.plinth {
  display: inline-block;
  width: 82%;
  position: relative;
  height: 93px;
}

.plinth > img {
  position: absolute;
}

.plinth > img:first-child {
  left: 0;
}

.plinth > img:last-child {
  right: 0;
}

.certificate-list {
  display: grid;
}

.certificate {
  text-align: center;
  min-height: 24.5rem;
  position: relative;
}

.certificate-desc {
  flex: 1 1 auto;
  width: 100%;
}

.certificate-desc > div {
  width: 18rem;
  justify-self: center;
  margin: 0 auto;
}

/*.certificate-desc:first-child {
  margin-left: 0;
}*/

.certificate-desc:nth-child(even) .certificate {
  margin-top: 6.5rem;
}

.certificate-title {
  width: 72%;
  line-height: 29px;
  margin: auto 0;
  display: inline-block;
  word-break: break-all;
  white-space: normal;
  position: absolute; /* 子元素绝对定位 */
  top: 50%; /* 垂直居中 */
  left: 50%; /* 水平居中 */
  transform: translate(-50%, -50%); /* 调整偏移 */
  z-index: 10; /* 设置更高的层级 */
}

.certificate-img {
  max-width: 90%;
  max-height: 75%;
  object-fit: contain;
  position: absolute;
  bottom: 44%;
  left: 50%; /* 水平居中 */
  transform: translateX(-50%); /* 水平居中 */
  box-shadow: 0px 5px 5px -2px #888888;
}

.over-x {
  overflow-x: scroll;
  overflow-y: hidden;
}

.over-x::-webkit-scrollbar {
  display: none
}

.partner-logos {
  display: flex;
  flex-wrap: wrap;
  grid-gap: 32px;
  /*grid-template-rows: 90px 200px;*/
  justify-content: center;
  margin-top: 1.5rem;
}

.partner-logo {
  /*flex: 0 0 11.2%;*/
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 10px;
  width: 135px;
  height: 55px;
  opacity: 1;
  border-radius: 12px;
  background: rgba(255, 255, 255, 1);
  box-shadow: 0px 6px 8px rgba(41, 106, 239, 0.18);
}

.partner-logo:nth-child(n+37) {
  -webkit-box-reflect: below 0 linear-gradient(transparent 65%, white 200%);
}

.partner-logo img {
  max-width: 100%;
  max-height: 100%;
  max-height: 60px;
  max-width: 220px;
}

.partner-logos-back {
  width: 100%;
  height: 160px;
  transform-origin: 50% 100% 0;
  transform: perspective(225px) rotateX(6deg);
  background-image: linear-gradient(0deg, rgba(41, 106, 239, 1), transparent);
  position: relative;
  top: -90px;
  border-radius: 0 0 10.11px 10.11px;
  z-index: -1;
}

.develop-local {
  flex-wrap: wrap;
  justify-content: center;
}

.local {
  display: flex;
  text-align: start;
  width: 20rem;
  flex: 1 1 auto;
}

.local > div {
  margin-left: 1rem;
}

.local-city {
  letter-spacing: 0px;
  line-height: 47px;
  color: rgba(51, 51, 51, 1);
  text-align: left;
  vertical-align: top;
}

.local-addr {
  letter-spacing: 0px;
  line-height: 35px;
  color: rgba(102, 102, 102, 1);
  vertical-align: top;
  margin: auto 0;
}

.local-phone {
  font-family: D-DIN-Bold;
}

.business-type-title {
  letter-spacing: 0px;

  color: rgba(51, 51, 51, 1);
  margin: 0;
}

.business-type-desc {
  letter-spacing: 0px;
  /*line-height: 44px;*/
  color: rgba(51, 51, 51, 1);
}

.introduce {
  width: 1520px;
  background: rgba(255, 255, 255, 1);
  box-shadow: 0px 6px 12px rgba(0, 0, 0, 0.16);
  margin: 20px 0;
}

.introduce > div {
  width: 100%;
  margin: 28px;

}

.introduce-l {
  max-width: 69%;
  overflow-x: hidden;
  display: inline-flex;
}

.introduce-l > img {
  max-height: 700px;
  max-width: 100%;
  margin-right: 14px;
  object-fit: contain;
}

.introduce-r {
  width: 29%;
  height: 100%;
  float: inline-end;
  position: relative;
}

.introduce-r-b {
  height: 12.5rem;
  margin-bottom: 0;
  bottom: 0;
  position: absolute;
  width: 100%;
  display: flex;
  flex-flow: column;
}

.flex-fill {
  flex: 1;
}

.introduce-effect {
  color: rgba(41, 106, 239, 1);
}

.introduce-desc {
  letter-spacing: 0px;
  line-height: 40px;
  color: rgba(102, 102, 102, 1);
}

.introduce-d {
  width: 8rem;
  text-align: center;
}

.introduce-btn {
  text-align: center;
  padding: 7px 0;
  color: white;
  width: 100%;
  background-color: rgba(41, 106, 239, 1);
}

.introduce-con {
  letter-spacing: 0px;
  line-height: 40px;
  color: rgba(102, 102, 102, 1);
  overflow-wrap: break-word;
  word-break: break-word;
  white-space: normal;
  margin-top: 28px;
}

.bus-d {
  box-shadow: 0px 6px 10px  rgba(0, 0, 0, 0.25);
}

.footer {
  display: flex;
  height: 80px;
  opacity: 1;
  background: rgba(237, 237, 237, 1);
  position: relative;
  color: black;
  font-size: small;
}

.footer > div {
  letter-spacing: 0px;
  line-height: 26px;
  margin: auto;
  text-align: center;
  max-width: 85%;
  display: flex;
  flex-wrap: wrap;
}

.footer span {
  margin: auto;
}

.footer a {
  text-decoration: none;
  color: black;
}


/*.timeline {
  height: 260px;
}
.history-content {
  height: 413px;
  background: #FBFBFB;
  color: #5F6464;
  overflow: hidden;
}
.history-main {
  width: 10000px;
  position: absolute;
  left: 0px;
}
.history-main-box {
  width: 404px;
  float: left;
  margin-right: 25px;
  padding-left: 1rem;
}*/


.brand-item {
  position: relative;
}

.history-header h2 {
  text-align: center;
  line-height: 45px;
  padding-top: 100px;
}

.history-header h2 + div {
  margin-top: 10px;
}

.history-line {
  width: 50%;
  border-bottom: 1px solid rgba(102, 102, 102, 1);
  margin-bottom: 1rem;
}


.progress-bar {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 100px;
  display: flex;
  justify-content: center;
  font-family: D-DIN;
}

.progress-bar .txt {
  font-family: D-DIN;
}

.progress-bar .node {
  width: 24px;
  height: 24px;
  float: left;
  position: relative;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  color: rgba(255, 255, 255, 0.6);
}

.progress-bar .line {
  float: left;
  height: 2px;
  background: rgba(255, 255, 255, 0.5);
  width: 8%;
  margin-top: 11px;
}

.history-title {
  letter-spacing: 0px;
  line-height: 50px;
  color: rgba(51, 51, 51, 1);
  text-align: left;
  vertical-align: top;
  font-family: D-DIN;
  margin-top: 25px;
}

.history-header {
  height: 384px;
  background-size: cover;
  background-image: url(../img/banner.jpg);
  background-position: center;
  color: #fff;
  position: relative;
  text-align: center;
}

#develop {
  margin-top: 8rem;
}

.progress-bar .node .txt {
  position: absolute;
  top: -30px;
  width: 200px;
  text-align: center;
  left: 50%;
  margin-left: -100px;
}

.progress-bar .node.active .core {
  background: #fff !important;
}

.progress-bar .node.active .txt {
  color: #fff;
}

.progress-bar .node .core {
  width: 18px;
  height: 18px;
  position: absolute;
  top: 3px;
  left: 3px;
  border-radius: 50%;
}

.mod-con {
  /*width: 1200px;*/
  margin: 0 auto;
}

.history-content {
  height: 380px;
  color: #5F6464;
  overflow: hidden;
  margin: auto;
  max-width: 1200px;
  overflow-x: scroll;
}

.history-main {
  width: 3400px;
  display: inline-flex;
  position: absolute;
  left: 0px;
}

.history-main-box {
  width: 270px;
  float: left;
  margin-right: 25px;
  /*text-wrap-mode: wrap;*/
  user-select: none;
  padding-left: 25px;
}

.history-main-box .li {
  letter-spacing: 0px;
  line-height: 50px;
  color: rgba(51, 51, 51, 1);
}

#slider-container {
  /*width: 100%;*/
  overflow: hidden;
  position: relative;
  overflow-x: scroll;
  white-space: nowrap;
  left: 0;
}

#slider-container::-webkit-scrollbar {
  display: none;
}

.video-type {
  display: inline-block;
  align-content: space-evenly;
  margin-right: 2.5rem;
  color: rgba(153, 153, 153, 1);
  line-height: 44px;
  border-radius: 8px;
  background: rgba(230, 230, 230, 1);
  padding: 0 15px;
}

.video-type.check {
  color: rgba(41, 106, 239, 1) !important;
  background: rgba(217, 230, 255, 1);
}

.video-type:hover {
  cursor: pointer;

}

@media screen and (min-width: 1201px) {
  .business, .business-desc {
    height: 20rem;
  }

  .certificate-list {
    grid-template-columns: repeat(4, 25%);
    margin-top: 6rem;
  }

  /*.timeline .history-main-box:first-child {
    margin-left: calc((100vw - 1200px) / 2);
  }*/
}

@media screen and (min-width: 601px) and (max-width: 1200px) {
  .business, .business-desc {
    height: 26vw;
  }

  .certificate-list {
    grid-template-columns: repeat(4, 25%);
    margin-top: 6rem;
    min-width: 1200px;
  }
}

@media screen and (min-width: 601px) {

  .font-size-title {
    font-size: 70px;
  }

  .font-size-l1 {
    font-size: 48px;
  }

  .font-size-l2 {
    font-size: 30px;
  }

  .font-size-l3 {
    font-size: 26px;
  }

  .font-size-l4 {
    font-size: 24px;
  }

  .font-size-l5 {
    font-size: 20px;
  }

  .font-size-l6 {
    font-size: 18px;
  }

  .icon-local {
    width: 2rem;
    height: 2rem;
  }

  .slogan h1 {
    letter-spacing: 10px;
    line-height: 104px;
  }

  .nav-title {
    height: 100%;
  }

  .content {
    padding: 0 2rem;
  }

  .develop {
    margin-top: 5rem
  }

  .business-grid {
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: auto auto; /* repeat(2, 1fr);*/
    align-items: stretch;
    gap: 11px;
  }

  .logo-content {
    margin: auto auto auto 2rem;
  }

  .about {
    /*margin-top: 8.5rem;*/
    padding-top: 5rem;
  }

  .about-grid {
    display: flex;
    margin-top: 2rem;
  }

  .about-desc {
    margin: 2rem;
    width: 25%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .about-desc:last-child {
    margin-right: auto;
  }

  .about-desc-line {
    width: 90%;
    margin: 1.2rem 0 2rem;
  }

  #contract {
    padding-top: 4rem;
  }

  .develop-local {
    margin: 3rem 0 6rem;
  }

  .local {
    padding: 2rem;
  }

  .bus-type {
    margin-left: 7rem;
    display: ruby;
  }

  .business-type-desc {
    margin-left: 1rem;
  }

  .mySwiper {
    height: 29rem;
    margin: 2rem 3rem;
  }

  .bus-video {
    padding: 0 3rem;
    margin-top: 2rem;
  }

  .bus-border {
    width: 18rem;
  }

  .bus-con {
    padding: 0 0.5rem 0 1.5rem;

  }

  .bus-border, .bus-con {
    height: 24rem;
  }

  .bus-zbyy {
    height: 18rem !important;
  }

  .swiper-slide > div {
    height: 100%;
    padding: 0 4rem;
  }

  .bus-title {
    margin-top: 40px;
  }

  .timeline {
    width: calc(100% + 4rem);
    margin-left: -2rem;
  }

  .footer div {
    gap: 20px;
  }

  .about-desc-content {
    font-size: 100px !important;
  }

  .icon-local {
    margin-top: 1.4rem;
  }

  .img-mySwiper {
    height: 23rem;
  }
}

@media screen and (max-width: 600px) {

  .font-size-title {
    font-size: xxx-large;
  }

  .font-size-l1 {
    font-size: xx-large;
  }

  .font-size-l2 {
    font-size: x-large;
  }

  .font-size-l3 {
    font-size: larger;
  }

  .font-size-l4 {
    font-size: large;
  }

  .font-size-l5 {
    font-size: medium;
  }

  .font-size-l6 {
    font-size: math;
  }


  .slogan h1 {
    width: 70%;
    letter-spacing: 5px;
    line-height: 60px;
    margin: 0 auto;
  }

  .slogan h2 {
    letter-spacing: 1px;
  }

  .nav-title {
    height: 60px;
    width: 100%;
  }

  .checkbtn {
    display: block;
  }

  ul {
    position: fixed;
    width: 100%;
    height: 100%;
    background: #2c3e50;
    top: 70px;
    left: -100%;
    text-align: center;
    transition: all 0.5s;
  }

  nav ul li {
    display: block;
    padding: 5px 0;
    line-height: 20px;
    border-bottom: solid #7E93A8 1px;
  }

  nav ul li a {
  }

  .nav-substitle {
    width: 100%;
    position: relative;
    top: -5px;
  }

  #check:checked ~ ul {
    left: 0;
  }

  .nav-text {
    width: 100%;
  }

  .content {
    padding: 0 3vw;
  }

  .develop {
    margin-top: 2rem
  }

  .logo-content {
    margin: auto auto auto 2vw;
  }

  .business, .business-desc {
    height: 45.5vw;
  }

  .business-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 1vw;
  }

  .partner-logos {
    grid-template-columns: repeat(2, 170px);
  }

  .certificate-list {
    grid-template-columns: repeat(1, 100%);
    margin-top: 1rem;
  }

  .business-title, .business-content {
    top: 1.5rem;
    right: 1.5rem;
  }

  .about {
    margin-top: 2.5rem;
  }

  .about-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(2, 1fr);
  }

  .about-desc {
    padding: 2.5vw 0;
    text-align: center;
    /*width: 49vw;*/
  }

  .about-desc-line {
    margin: 5vw 3vw;
  }
  .about-desc-title {
    text-align: center;
  }

  .certificate-desc:not(:first-child) {
    margin-top: -5rem;
  }

  #contract {
    padding-top: 2rem;
  }

  .develop-local {
    margin-top: 0;
  }

  .local {
    padding: 1rem 2rem;
  }

  .bus-type {
    margin-left: 9vw;
  }

  .mySwiper {
    height: 177vw;
    margin: 2vw 0;
  }

  .bus-d {
    height: 96%;
    width: 75vw;
    margin: 0 auto;
    align-content: flex-start;
  }

  .bus-border {
    width: 75vw;
    height: 82.5vw;
  }

  .bus-con {
    margin: 0 3vw;
    width: 75vw;
    height: 75vw;
  }

  .bus-title {
    margin-top: 1.5rem;
  }

  .timeline {
    width: calc(100% + 6vw);
    margin-left: -3vw;
  }

  ._main {
    margin-top: -5rem;
    padding-top: 5rem;
  }

  .icon-local {
    width: 1.5rem;
  }

  .progress-bar > .node:nth-child(3),
  .progress-bar > .line:nth-child(4),
  .progress-bar > .node:nth-child(7),
  .progress-bar > .line:nth-child(8),
  .progress-bar > .node:nth-child(11),
  .progress-bar > .line:nth-child(12) {
    display: none;
  }


  .about-desc-content {
    font-size: 70px !important;
  }
}