@charset "utf-8";
:root {
  --color: #00d1d1;
  --vh: 100vh;
}
/*字体*/
@font-face {
  font-family: "dinbold";
  src: url("../font/DIN-BOLD.OTF") format("opentype");
}
@font-face {
  font-family: "pfdinbold";
  src: url("../font/PFDinTextCompPro-Medium-3.ttf") format("truetype");
}
.font-dinbold {
  font-family: dinbold;
}
.font-pfdinbold {
  font-family: pfdinbold;
}
* {
  padding: 0;
  margin: 0;
  outline: none;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}
html {
  font-size: calc(100vw/19.2);
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scrollbar-width: thin;
}
@media (min-width: 1901px) {
  html {
    font-size: 100px;
  }
}
@media (max-width: 1580px) {
  html {
    font-size: 66px;
  }
}
@media (max-width: 767px) {
  html {
    font-size: calc(100vw/7.5);
  }
}
body {
  min-height: 100%;
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Microsoft YaHei UI', 'SimSun', 'SimHei', 'Arial';
  font-size: 16px;
  line-height: 1.5;
  color: #333;
  background: #fff;
}
@media (max-width: 1580px) {
  body {
    font-size: 14px;
  }
}
@media (max-width: 767px) {
  body {
    font-size: 0.28rem;
  }
}
img {
  max-width: 100%;
  border: 0;
  vertical-align: top;
}
li {
  list-style: none;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: inherit;
  font-style: inherit;
  font-size: inherit;
  font-weight: normal;
}
a,
a:hover,
a:focus {
  text-decoration: none;
}
input,
button {
  -webkit-appearance: none;
  border-radius: 0;
}
button {
  cursor: pointer;
}
input[type="button"],
input[type="reset"],
input[type="submit"] {
  -webkit-appearance: button;
  cursor: pointer;
}
textarea {
  resize: none;
  overflow: auto;
}
input,
button,
textarea,
select {
  border: 0;
  font-family: inherit;
  font-style: inherit;
  font-size: inherit;
  font-weight: normal;
  color: inherit;
  background: transparent;
}
select {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  white-space: nowrap;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}
select::-ms-expand {
  display: none;
}
table {
  border-collapse: collapse;
}
.fl {
  float: left;
}
.fr {
  float: right;
}
.clear {
  zoom: 1;
}
.clear:after {
  content: '';
  display: block;
  clear: both;
}
.container {
  margin: 0 auto;
  width: 85%;
  max-width: 1600px;
}
@media (max-width: 1260px) {
  .container {
    width: 90%;
  }
}
.font16 {
  font-size: 16px;
}
@media (max-width: 1580px) {
  .font16 {
    font-size: 14px;
  }
}
@media (max-width: 767px) {
  .font16 {
    font-size: 0.28rem;
  }
}
.public-scrollbar {
  scrollbar-width: thin;
}
.public-scrollbar ::-webkit-scrollbar {
  /*滚动条整体样式*/
  width: 5px;
  /*高宽分别对应横竖滚动条的尺寸*/
  height: 1px;
}
.public-scrollbar ::-webkit-scrollbar-thumb {
  /*滚动条-滑块*/
  border-radius: 3px;
  box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.2);
  background: #00d1d1;
}
.public-scrollbar ::-webkit-scrollbar-track {
  /*滚动条-背景*/
  box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.2);
  border-radius: 3px;
  background: #ededed;
}
.public-btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  padding: 0 0.2rem;
  min-width: 1rem;
}
.public-img {
  display: block;
  position: relative;
  z-index: 1;
  overflow: hidden;
}
.public-img::before {
  content: "";
  display: block;
  position: relative;
  z-index: 0;
  padding-top: 100%;
}
.public-img > img {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all 0.5s;
}
.public-content {
  color: #666;
  line-height: 1.8;
}
.public-content a {
  color: #666;
}
.public-content table {
  max-width: 100%;
}
.public-content table td,
.public-content table th {
  padding: 10px 15px;
  border: 1px solid #dbf1ed;
}
.public-content li {
  margin-left: 15px;
  list-style: disc;
}
.public-content ol {
  margin-left: 15px;
  list-style: decimal;
}
.public-content img,
.public-content video {
  max-width: 100%;
  height: auto !important;
}
#hi-upgrade {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 9999;
  width: 100%;
  height: 100%;
  background: #fff;
  font-size: 16px;
  line-height: 26px;
  text-align: center;
}
#hi-upgrade .hi-wrap {
  position: absolute;
  top: 50%;
  left: 50%;
  margin: -177px 0 0 -450px;
  width: 900px;
}
#hi-upgrade .hi-wrap .hi-title {
  font-size: 30px;
  line-height: 40px;
  color: #333;
}
#hi-upgrade .hi-wrap .hi-close {
  margin: 10px 0;
  display: inline-block;
  cursor: pointer;
  font-size: 18px;
  color: #00d1d1;
}
#hi-upgrade .hi-wrap .hi-close:hover {
  text-decoration: underline;
}
#hi-upgrade .hi-wrap .hi-text1 {
  color: #666;
}
#hi-upgrade .hi-wrap .hi-text1 span {
  color: #00d1d1;
}
#hi-upgrade .hi-wrap .hi-text2 {
  position: relative;
  margin: 60px 0;
  color: #333;
}
#hi-upgrade .hi-wrap .hi-text2::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  z-index: 1;
  width: 100%;
  border-top: 1px solid #ddd;
}
#hi-upgrade .hi-wrap .hi-text2 span {
  position: relative;
  z-index: 5;
  padding: 0 30px;
  background: #fff;
}
#hi-upgrade .hi-wrap .hi-list {
  overflow: hidden;
}
#hi-upgrade .hi-wrap .hi-list li {
  display: inline-block;
  width: 16%;
}
#hi-upgrade .hi-wrap .hi-list li div {
  margin: 0 auto 5px;
  width: 50px;
  height: 50px;
}
#hi-upgrade .hi-wrap .hi-list li a {
  color: #666;
}
#hi-upgrade .hi-wrap .hi-list li a:hover {
  color: #00d1d1;
}
#hi-upgrade .hi-wrap .hi-list li .hi-ico1 {
  background: url(../images/hi-llq-1.jpg) no-repeat center / 100%;
}
#hi-upgrade .hi-wrap .hi-list li .hi-ico2 {
  background: url(../images/hi-llq-2.jpg) no-repeat center / 100%;
}
#hi-upgrade .hi-wrap .hi-list li .hi-ico3 {
  background: url(../images/hi-llq-3.jpg) no-repeat center / 100%;
}
#hi-upgrade .hi-wrap .hi-list li .hi-ico4 {
  background: url(../images/hi-llq-4.jpg) no-repeat center / 100%;
}
#hi-upgrade .hi-wrap .hi-list li .hi-ico5 {
  background: url(../images/hi-llq-5.jpg) no-repeat center / 100%;
}
#hi-upgrade .hi-wrap .hi-list li .hi-ico6 {
  background: url(../images/hi-llq-6.jpg) no-repeat center / 100%;
}
.case-box1 .container .right .lb4 {
  text-align: center;
  display: block;
  padding: 0 0.15rem 0.3rem;
  position: relative;
  margin: 0 0.25rem;
}
@media (max-width: 991px) {
  .case-box1 .container .right .lb4 {
    min-width: calc((100% - 1.5rem) / 3);
  }
}
.case-box1 .container .right .lb4::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background-color: #00d1d1;
  transition: all 0.4s;
  z-index: 2;
}
.case-box1 .container .right .lb4 .cn4 img {
  width: 0.75rem;
  height: 0.75rem;
}
.case-box1 .container .right .lb4 .cn4 svg {
  width: 0.36rem;
  height: 0.36rem;
}
.case-box1 .container .right .lb4 .cn4 svg path {
  fill: #999;
  opacity: 1;
}
.case-box1 .container .right .lb4 .cn5 {
  width: 100%;
  line-height: 1.875em;
  margin-top: 0.18rem;
  color: #999999;
}
.case-box1 .container .right .lb4.on::before {
  width: 100%;
}
.case-box1 .container .right .lb4.on .cn4 svg path {
  fill: #00d1d1;
}
.case-box1 .container .right .lb4.on .cn5 {
  color: #00d1d1;
}
.case-box2 .container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}
.case-box2 .container .pmleft {
  display: flex;
  flex-wrap: wrap;
}
@media (max-width: 1260px) {
  .case-box2 .container .pmleft {
    width: 85%;
  }
}
@media (max-width: 991px) {
  .case-box2 .container .pmleft {
    width: 100%;
    display: none;
  }
}
.case-box2 .container .pmleft .cn1 {
  margin-top: 10px;
  margin-right: 10px;
  min-width: 1rem;
  text-align: center;
  padding: 0.1rem 0.3rem;
  border-radius: 25px;
  transition: all 0.4s;
  color: #999999;
  line-height: 1.875em;
}
@media (max-width: 1900px) {
  .case-box2 .container .pmleft .cn1 {
    padding: 0.1rem 0.2rem;
  }
}
@media (max-width: 1580px) {
  .case-box2 .container .pmleft .cn1 {
    padding: 0.1rem 0.15rem;
  }
}
@media (max-width: 767px) {
  .case-box2 .container .pmleft .cn1 {
    margin-right: 5px;
    padding: 0.1rem 0.2rem;
  }
}
.case-box2 .container .pmleft .cn1 em {
  font-size: 12px;
  font-style: normal;
  transform: translateY(-0.05rem);
  position: relative;
  display: none;
}
.case-box2 .container .pmleft .cn1:hover {
  background-color: #f8f8f8;
}
.case-box2 .container .pmleft .cn1.on {
  background-color: #f8f8f8;
}
.case-box2 .container .pmleft .cn1.on em {
  display: inline-block;
}
.case-box2 .container .pmright .pmbtn {
  height: 0.5rem;
  border-radius: 0.25rem;
  padding: 0 0.32rem;
  background: #00d1d1;
  display: flex;
  align-items: center;
  margin-top: 10px;
  position: relative;
}
@media (max-width: 767px) {
  .case-box2 .container .pmright .pmbtn {
    height: 0.8rem;
    border-radius: 0.4rem;
  }
}
.case-box2 .container .pmright .pmbtn i {
  display: flex;
}
.case-box2 .container .pmright .pmbtn i svg {
  width: 0.25rem;
  height: 0.18rem;
}
.case-box2 .container .pmright .pmbtn i svg path {
  fill: #fff;
}
.case-box2 .container .pmright .pmbtn span {
  color: #fff;
  margin-left: 0.1rem;
}
.case-box2 .container .pmright .pmbtn span em {
  width: 0.25rem;
  height: 0.25rem;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #000;
  position: absolute;
  right: 0;
  top: -6px;
  font-style: normal;
}
@media (max-width: 767px) {
  .case-box2 .container .pmright .pmbtn span em {
    width: 20px;
    height: 20px;
  }
}
@media (max-width: 991px) {
  .pmright.pczbtn {
    display: none;
  }
}
.pmright.mbzbtn {
  display: none;
}
@media (max-width: 991px) {
  .pmright.mbzbtn {
    display: flex;
    justify-content: center;
  }
}
.pmright .pmbtn {
  height: 0.5rem;
  border-radius: 0.25rem;
  padding: 0 0.32rem;
  background: #00d1d1;
  display: flex;
  align-items: center;
  margin-top: 10px;
  position: relative;
}
@media (max-width: 767px) {
  .pmright .pmbtn {
    height: 0.8rem;
    border-radius: 0.4rem;
  }
}
.pmright .pmbtn i {
  display: flex;
}
.pmright .pmbtn i svg {
  width: 0.25rem;
  height: 0.18rem;
}
.pmright .pmbtn i svg path {
  fill: #fff;
}
.pmright .pmbtn span {
  color: #fff;
  margin-left: 0.1rem;
}
.pmright .pmbtn span em {
  width: 0.25rem;
  height: 0.25rem;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #000;
  position: absolute;
  right: 0;
  top: -6px;
  font-style: normal;
}
@media (max-width: 767px) {
  .pmright .pmbtn span em {
    width: 20px;
    height: 20px;
  }
}
.product-list {
  width: 100%;
  margin-top: 0.13rem;
  padding-bottom: 0.88rem;
}
@media (max-width: 991px) {
  .product-list {
    margin-top: 0.5rem;
  }
}
.product-list .container ul {
  width: calc(100% + 0.28rem);
  margin: 0 -0.14rem;
  display: flex;
  flex-wrap: wrap;
}
@media (max-width: 991px) {
  .product-list .container ul {
    justify-content: space-between;
  }
}
.product-list .container ul li {
  width: calc(25% - 0.28rem);
  margin: 0 0.14rem 0.56rem;
  position: relative;
}
@media (max-width: 991px) {
  .product-list .container ul li {
    width: calc(50% - 0.28rem);
  }
}
@media (max-width: 767px) {
  .product-list .container ul li {
    width: 48%;
    margin: 0 0 0.56rem;
    background-color: #f8f8f8;
    border-radius: 0.15rem;
  }
}
.product-list .container ul li:hover .boxs .public-img {
  background: #fff;
  border: 1px solid #00d1d1;
}
.product-list .container ul li:hover .tbox .t1 {
  color: #00d1d1;
}
.product-list .container ul li:hover .tbox .text {
  color: #333;
}
.product-list .container ul li:nth-child(1) {
  width: calc(50% - 0.28rem);
}
@media (max-width: 991px) {
  .product-list .container ul li:nth-child(1) {
    width: 100%;
    margin: 0 0 0.56rem;
  }
}
@media (max-width: 767px) {
  .product-list .container ul li:nth-child(1) {
    width: 48%;
  }
}
.product-list .container ul li:nth-child(1) .boxs .public-img::before {
  padding-top: 53.29949239%;
}
@media (max-width: 767px) {
  .product-list .container ul li:nth-child(1) .boxs .public-img::before {
    padding-top: 110.52631579%;
  }
}
.product-list .container ul li .lable {
  width: 22px;
  position: absolute;
  right: 0.2rem;
  top: 0.2rem;
  z-index: 3;
  display: flex;
  align-items: center;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.4s;
}
.product-list .container ul li .lable i {
  width: 22px;
  height: 22px;
  border: 1px solid #ddd;
  border-radius: 5px;
  position: relative;
  flex-shrink: 0;
  transition: all 0.4s;
}
.product-list .container ul li .lable i::before {
  content: '';
  width: 9px;
  height: 4px;
  border-left: 1px solid #333;
  border-bottom: 1px solid #333;
  position: absolute;
  left: calc(50% - 1px);
  top: 3px;
  transform: rotateZ(-45deg) translateX(-50%);
  transition: all 0.4s;
}
.product-list .container ul li .lable span {
  color: #333;
  margin-left: 0.1rem;
  flex-shrink: 0;
  display: flex;
  transition: all 0.4s;
}
.product-list .container ul li .lable:hover {
  width: 90px;
}
.product-list .container ul li .lable.on i {
  border: 1px solid #00d1d1;
  background: #00d1d1;
}
.product-list .container ul li .lable.on i::before {
  border-left: 1px solid #fff;
  border-bottom: 1px solid #fff;
}
.product-list .container ul li .lable.on span {
  color: #00d1d1;
}
.product-list .container ul li .boxs {
  width: 100%;
  display: block;
}
.product-list .container ul li .boxs .public-img {
  width: 100%;
  background: #f8f8f8;
  border: 1px solid #F8f8f8;
  border-radius: 0.15rem;
  transition: all 0.4s;
}
.product-list .container ul li .boxs .public-img::before {
  padding-top: 110.52631579%;
}
.product-list .container ul li .boxs .public-img img {
  height: calc(100% - 0.6rem);
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  object-fit: contain;
}
.product-list .container ul li .boxs .tbox {
  width: 100%;
  padding: 0.2rem 0.15rem;
}
.product-list .container ul li .boxs .tbox .t1 {
  line-height: 1.5em;
  font-weight: bold;
  color: #333;
  transition: all 0.4s;
}
@media (max-width: 991px) {
  .product-list .container ul li .boxs .tbox .t1 {
    text-align: center;
    font-size: 0.32rem;
  }
}
.product-list .container ul li .boxs .tbox .txt {
  transition: all 0.4s;
  line-height: 1.71428571em;
  color: #999;
  margin-top: 0.1rem;
}
@media (max-width: 991px) {
  .product-list .container ul li .boxs .tbox .txt {
    display: none;
  }
}
.product-list .more {
  display: flex;
  justify-content: center;
  margin-top: 0.58rem;
}
.product-list .more a {
  display: flex;
  justify-content: center;
  align-items: center;
}
.product-list .more a i {
  width: 23px;
  height: 23px;
  display: flex;
  justify-content: center;
  align-items: center;
}
.product-list .more a span {
  color: #666;
  font-weight: bold;
  margin-left: 0.1rem;
}
.about {
  width: 100%;
}
.about .box1 {
  width: 100%;
  position: relative;
  background: #fff;
}
.about .box1 .bbs {
  width: 100%;
  position: sticky;
  position: -webkit-sticky;
  bottom: 0;
  height: 270vh;
}
@media (max-width: 991px) {
  .about .box1 .bbs {
    height: 300vh;
  }
}
.about .box1 .bbs .bg {
  width: 100%;
  height: 100vh;
  position: sticky;
  position: -webkit-sticky;
  top: 0;
  z-index: 1;
}
.about .box1 .bbs .bg .img {
  width: 100%;
  height: 100%;
  overflow: hidden;
  position: relative;
}
.about .box1 .bbs .bg .img::after {
  content: '';
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.3);
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
}
.about .box1 .bbs .bg .img video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
@media (max-width: 991px) {
  .about .box1 .bbs .bg .img video.pc {
    display: none;
  }
}
.about .box1 .bbs .bg .img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
@media (max-width: 991px) {
  .about .box1 .bbs .bg .img img.pc {
    display: none;
  }
}
.about .box1 .bbs .bg .img img.mb {
  display: none;
}
@media (max-width: 991px) {
  .about .box1 .bbs .bg .img img.mb {
    display: block;
  }
}
.about .box1 .bbs .tbox1 {
  width: 100%;
  height: 100vh;
  position: sticky;
  position: -webkit-sticky;
  top: 0;
  z-index: 2;
  margin-top: -100vh;
}
.about .box1 .bbs .tbox1 .sbox {
  width: 100%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: all 0.5s;
}
@media (max-width: 991px) {
  .about .box1 .bbs .tbox1 .sbox {
    width: 80%;
  }
}
.about .box1 .bbs .tbox1 .sbox .title {
  line-height: 1.20833333em;
  text-align: center;
  font-weight: bold;
  color: #fff;
}
@media (max-width: 991px) {
  .about .box1 .bbs .tbox1 .sbox .title {
    font-size: 0.5rem;
  }
}
.about .box1 .bbs .tbox1 .sbox .play {
  width: 0.62rem;
  height: 0.62rem;
  border-radius: 50%;
  margin: 0.44rem auto 0;
  position: relative;
  background: #00d1d1;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: all 0.4s;
}
@media (max-width: 767px) {
  .about .box1 .bbs .tbox1 .sbox .play {
    width: 0.8rem;
    height: 0.8rem;
  }
}
.about .box1 .bbs .tbox1 .sbox .play::before {
  content: '';
  width: 0.82rem;
  height: 0.82rem;
  border: 1px dashed #00d1d1;
  border-radius: 50%;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
@media (max-width: 767px) {
  .about .box1 .bbs .tbox1 .sbox .play::before {
    width: 1rem;
    height: 1rem;
  }
}
.about .box1 .bbs .tbox1 .sbox .play svg {
  width: 15px;
  height: 17px;
}
.about .box1 .bbs .tbox1 .sbox .play svg path {
  fill: #fff;
}
.about .box1 .bbs .tbox1 .sbox .play:hover {
  transform: scale(1.05);
}
.about .box1 .bbs .tbox1 .scroll {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 0.3rem;
  z-index: 3;
  transition: all 0.5s;
}
.about .box1 .bbs .tbox1 .scroll span {
  color: #fff;
  font-weight: bold;
  line-height: 1;
}
.about .box1 .bbs .tbox1 .scroll i {
  width: 18px;
  height: 24px;
  margin: 8px auto 0;
  display: flex;
  justify-content: center;
  align-items: center;
}
.about .box1 .bbs .tbox1 .scroll i svg {
  width: 100%;
  height: 100%;
  animation: scroll 2s forwards linear infinite;
}
.about .box1 .bbs .tbox1 .scroll i svg path {
  fill: #fff;
}
.about .box1 .bbs .tbox2 {
  width: 100%;
  height: 100vh;
  position: sticky;
  position: -webkit-sticky;
  top: 0;
  z-index: 0;
  margin-top: -100vh;
  z-index: 1;
}
.about .box1 .bbs .tbox2 .bg {
  width: 100%;
  height: 100%;
  overflow: hidden;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 3;
}
.about .box1 .bbs .tbox2 .bg span {
  width: 200%;
  height: 200%;
  border-top: 60vh solid #fff;
  border-bottom: 60vh solid #fff;
  border-left: 50vw solid #fff;
  border-right: 50vw solid #fff;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(10);
  z-index: 3;
  opacity: 0;
}
@media (max-width: 1260px) {
  .about .box1 .bbs .tbox2 .bg span {
    border-top: 70vh solid #fff;
    border-bottom: 70vh solid #fff;
  }
}
@media (max-width: 991px) {
  .about .box1 .bbs .tbox2 .bg span {
    border-top: 85vh solid #fff;
    border-bottom: 85vh solid #fff;
    border-left: 30vw solid #fff;
    border-right: 30vw solid #fff;
  }
}
@media (max-width: 767px) {
  .about .box1 .bbs .tbox2 .bg span {
    border-top: 90vh solid #fff;
    border-bottom: 90vh solid #fff;
  }
}
.about .box1 .bbs .tbox2 .bg2 {
  width: 100%;
  height: 100%;
  background: #00d1d1;
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
}
.about .box1 .bbs .tbox2 .img {
  width: 100%;
  height: 100%;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  z-index: 2;
}
.about .box1 .bbs .tbox2 .img svg {
  width: 100%;
  height: 100%;
  transform: scale(10);
  opacity: 0;
}
.about .box1 .bbs .tbox2 .img svg path {
  fill: #fff;
}
.about .box1 .tbox4_zz {
  width: 100%;
  height: 1.5rem;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0), #ffffff);
  position: sticky;
  position: -webkit-sticky;
  top: calc(100vh - 1.5rem);
  margin-top: -55vh;
  z-index: 6;
}
.about .box1 .tbox4 {
  width: 100%;
  background: #fff;
  position: relative;
  z-index: 5;
  padding: 0.8rem 0 1.53rem;
}
@media (max-width: 991px) {
  .about .box1 .tbox4 {
    padding: 0.5rem 0 1.5rem;
    margin-top: -100vh;
  }
}
.about .box1 .tbox4 .container .txt {
  max-width: 1100px;
  margin: 0 auto;
  color: #333;
  line-height: 1.5em;
}
.about .box1 .tbox4 .container .ts {
  width: 100%;
  margin-top: 1.16rem;
}
.about .box1 .tbox4 .container .ts ul {
  width: calc(100% + 0.4rem);
  margin: 0 -0.2rem;
  display: flex;
  flex-wrap: wrap;
}
.about .box1 .tbox4 .container .ts ul li {
  width: calc(25% - 0.4rem);
  margin: 0 0.2rem 0.4rem;
  border-top: 2px solid #d5d5d5;
  position: relative;
  padding: 0.24rem 0.2rem;
}
@media (max-width: 991px) {
  .about .box1 .tbox4 .container .ts ul li {
    width: calc(50% - 0.4rem);
  }
}
.about .box1 .tbox4 .container .ts ul li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-left: 2px solid #d5d5d5;
  position: absolute;
  left: 1px;
  bottom: calc(100% - 2px);
  transform: rotateZ(45deg);
}
.about .box1 .tbox4 .container .ts ul li .t2 {
  font-size: 0.86rem;
  line-height: 1;
  height: 0.68rem;
  color: #00d1d1;
  font-weight: bold;
  font-family: "dinbold";
}
.about .box1 .tbox4 .container .ts ul li .t2 i {
  font-style: normal;
}
.about .box2 {
  width: 100%;
  height: 100vh;
  position: relative;
  z-index: 1;
}
@media (max-width: 991px) {
  .about .box2 {
    height: auto;
    padding: 1.4rem 0;
  }
}
.about .box2 .bg {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  overflow: hidden;
}
.about .box2 .bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
@media (max-width: 991px) {
  .about .box2 .bg img.pc {
    display: none;
  }
}
.about .box2 .bg img.mb {
  display: none;
}
@media (max-width: 991px) {
  .about .box2 .bg img.mb {
    display: block;
  }
}
.about .box2 .container {
  height: 100%;
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
  align-content: center;
  flex-wrap: wrap;
}
.about .box2 .container .tbox {
  width: 32.5%;
}
@media (max-width: 991px) {
  .about .box2 .container .tbox {
    width: 100%;
  }
}
.about .box2 .container .tbox .title {
  line-height: 1.2em;
  color: #000;
  font-weight: bold;
}
.about .box2 .container .tbox .txt {
  line-height: 1.55555556em;
  color: #666;
  margin-top: 0.18rem;
}
.about .box2 .container .list {
  width: 50%;
}
@media (max-width: 1580px) {
  .about .box2 .container .list {
    width: 55%;
  }
}
@media (max-width: 991px) {
  .about .box2 .container .list {
    width: 100%;
    margin-top: 0.5rem;
  }
}
.about .box2 .container .list ul li {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 0.38rem 0.5rem 0.07rem;
  transition: all 0.4s;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}
@media (max-width: 991px) {
  .about .box2 .container .list ul li {
    padding: 0.5rem 0;
  }
}
.about .box2 .container .list ul li .ts {
  width: 78.57142857%;
  padding-top: 0.2rem;
}
@media (max-width: 767px) {
  .about .box2 .container .list ul li .ts {
    width: 80%;
  }
}
.about .box2 .container .list ul li .ts .t1 {
  line-height: 1.41666667em;
  color: 000;
  font-weight: bold;
}
.about .box2 .container .list ul li .ts .t2 {
  margin-top: 0.08rem;
  line-height: 1.33333333em;
  color: rgba(0, 0, 0, 0.8);
}
.about .box2 .container .list ul li .icon {
  width: 1rem;
  position: relative;
}
.about .box2 .container .list ul li .icon span {
  width: 100%;
  display: flex;
}
.about .box2 .container .list ul li .icon span img {
  width: 100%;
}
.about .box2 .container .list ul li .icon i {
  width: 1rem;
  height: 1rem;
  display: flex;
  justify-content: center;
  align-items: center;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
  padding-right: 0.08rem;
}
.about .box2 .container .list ul li .icon i svg {
  width: 0.4rem;
}
.about .box2 .container .list ul li .icon i svg path {
  fill: #fff;
  filter: none;
}
.about .box2 .container .list ul li:hover {
  background: #fff;
  border-radius: 0.15rem;
  border-bottom: 1px solid transparent;
}
@media (max-width: 991px) {
  .about .box2 .container .list ul li:hover {
    background: none;
    border-radius: 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  }
}
.about .box3 {
  width: 100%;
  background: #fff;
  overflow: hidden;
  padding: 1.4rem 0;
}
.about .box3 .container .top .title {
  line-height: 1.2em;
  font-weight: bold;
  color: #000;
}
.about .box3 .container .top .txt {
  margin-top: 0.18rem;
  line-height: 1.55555556em;
  color: #666;
}
.about .box3 .container .list {
  width: 100%;
  margin-top: 0.84rem;
  position: relative;
}
.about .box3 .container .list .swiper-container {
  overflow: visible;
}
.about .box3 .container .list .swiper-container .swiper-slide {
  padding: 0 0 0 0.6rem;
  position: relative;
}
.about .box3 .container .list .swiper-container .swiper-slide::before {
  content: "";
  position: absolute;
  left: -2px;
  top: 0;
  width: 2px;
  height: 100%;
  background: #ededed;
}
.about .box3 .container .list .swiper-container .swiper-slide .year {
  height: 0.72rem;
  color: #333;
  font-weight: bold;
  font-size: 1rem;
  line-height: 0.72rem;
  font-family: "dinbold";
  opacity: 0.2;
}
.about .box3 .container .list .swiper-container .swiper-slide .tbox {
  position: relative;
  z-index: 5;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  margin-top: 0.72rem;
  opacity: 0.2;
}
.about .box3 .container .list .swiper-container .swiper-slide .tbox .public-img {
  width: 44.03669725%;
  border-radius: 5px;
  margin-top: 0.07rem;
}
@media (max-width: 767px) {
  .about .box3 .container .list .swiper-container .swiper-slide .tbox .public-img {
    width: 100%;
    padding-right: 0.3rem;
  }
}
.about .box3 .container .list .swiper-container .swiper-slide .tbox .public-img::before {
  padding-top: 58.33333333%;
}
@media (max-width: 767px) {
  .about .box3 .container .list .swiper-container .swiper-slide .tbox .public-img img {
    width: calc(100% - 0.3rem);
  }
}
.about .box3 .container .list .swiper-container .swiper-slide .tbox .tbs {
  width: 47.70642202%;
  height: 3.5rem;
  overflow-y: auto;
  padding-right: 0.3rem;
}
.about .box3 .container .list .swiper-container .swiper-slide .tbox .tbs::-webkit-scrollbar {
  /*滚动条整体样式*/
  width: 5px;
  /*高宽分别对应横竖滚动条的尺寸*/
  height: 1px;
}
.about .box3 .container .list .swiper-container .swiper-slide .tbox .tbs::-webkit-scrollbar-thumb {
  /*滚动条-滑块*/
  border-radius: 3px;
  box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.2);
  background: #00d1d1;
}
.about .box3 .container .list .swiper-container .swiper-slide .tbox .tbs::-webkit-scrollbar-track {
  /*滚动条-背景*/
  border-radius: 3px;
  background: #ededed;
}
.about .box3 .container .list .swiper-container .swiper-slide .tbox .tbs::-webkit-scrollbar {
  /*滚动条整体样式*/
  width: 2px;
  /*高宽分别对应横竖滚动条的尺寸*/
  height: 1px;
}
@media (max-width: 1580px) {
  .about .box3 .container .list .swiper-container .swiper-slide .tbox .tbs {
    height: 3.6rem;
  }
}
@media (max-width: 767px) {
  .about .box3 .container .list .swiper-container .swiper-slide .tbox .tbs {
    width: 100%;
    margin-top: 0.5rem;
  }
}
.about .box3 .container .list .swiper-container .swiper-slide .tbox .tbs .ts {
  line-height: 1.55555556em;
  margin-bottom: 0.28rem;
}
.about .box3 .container .list .swiper-container .swiper-slide .tbox .tbs .ts .t1 {
  color: #333;
  font-weight: bold;
}
.about .box3 .container .list .swiper-container .swiper-slide .tbox .tbs .ts .t2 {
  color: #666;
}
@media (max-width: 991px) {
  .about .box3 .container .list .swiper-container .swiper-slide-active {
    opacity: 1;
  }
  .about .box3 .container .list .swiper-container .swiper-slide-active .year {
    opacity: 1;
  }
  .about .box3 .container .list .swiper-container .swiper-slide-active .tbox {
    opacity: 1;
  }
}
.about .box3 .container .list .swiper-container .swiper-slide-next {
  opacity: 1;
}
.about .box3 .container .list .swiper-container .swiper-slide-next .year {
  opacity: 1;
}
.about .box3 .container .list .swiper-container .swiper-slide-next .tbox {
  opacity: 1;
}
@media (max-width: 991px) {
  .about .box3 .container .list .swiper-container .swiper-slide-next {
    opacity: 0.2;
  }
  .about .box3 .container .list .swiper-container .swiper-slide-next .year {
    opacity: 0.2;
  }
  .about .box3 .container .list .swiper-container .swiper-slide-next .tbox {
    opacity: 0.2;
  }
}
.about .box3 .container .list .ck {
  display: flex;
  position: absolute;
  right: 0;
  bottom: calc(100% + 0.9rem);
}
@media (max-width: 767px) {
  .about .box3 .container .list .ck {
    position: relative;
    right: initial;
    bottom: initial;
    width: 100%;
    justify-content: center;
    margin-top: 0.8rem;
  }
}
.about .box3 .container .list .ck .swiper-prev,
.about .box3 .container .list .ck .swiper-next {
  width: 0.49rem;
  height: 0.49rem;
  border-radius: 50%;
  border: 2px solid #00d1d1;
  transition: all 0.4s;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
}
@media (max-width: 767px) {
  .about .box3 .container .list .ck .swiper-prev,
  .about .box3 .container .list .ck .swiper-next {
    width: 0.8rem;
    height: 0.8rem;
  }
}
.about .box3 .container .list .ck .swiper-prev svg,
.about .box3 .container .list .ck .swiper-next svg {
  width: 0.12rem;
  height: 0.12rem;
}
@media (max-width: 767px) {
  .about .box3 .container .list .ck .swiper-prev svg,
  .about .box3 .container .list .ck .swiper-next svg {
    width: 30%;
    height: 30%;
  }
}
.about .box3 .container .list .ck .swiper-prev svg path,
.about .box3 .container .list .ck .swiper-next svg path {
  fill: #00d1d1;
  transition: all 0.4s;
  filter: none;
}
.about .box3 .container .list .ck .swiper-prev:hover,
.about .box3 .container .list .ck .swiper-next:hover {
  background: #00d1d1;
}
.about .box3 .container .list .ck .swiper-prev:hover svg path,
.about .box3 .container .list .ck .swiper-next:hover svg path {
  fill: #fff;
}
.about .box3 .container .list .ck .swiper-prev {
  margin-right: 0.2rem;
}
.about .box3 .container .list .ck .swiper-next svg {
  transform: rotateZ(180deg);
}
.about .box4 {
  width: 100%;
  padding: 1.2rem 0;
  overflow: hidden;
}
@media (max-width: 767px) {
  .about .box4 .container {
    width: 100%;
  }
}
.about .box4 .container .top .title {
  line-height: 1.2em;
  font-weight: bold;
  text-align: center;
  color: #000;
}
.about .box4 .container .top .txt {
  line-height: 1.44444444em;
  text-align: center;
  color: #999;
  margin-top: 0.2rem;
}
.about .box4 .container .map {
  width: 1200px;
  max-width: 100%;
  position: relative;
  margin: 0.54rem auto 0;
}
@media (max-width: 767px) {
  .about .box4 .container .map {
    margin: 0.8rem auto 0;
    max-width: 130%;
    margin-left: -15%;
  }
}
.about .box4 .container .map .quan {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
}
.about .box4 .container .map .quan .qb {
  position: absolute;
  width: 4px;
  height: 4px;
}
.about .box4 .container .map .quan .qb::before {
  content: '';
  border-radius: 50%;
  background: rgba(0, 209, 209, 0.7);
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  animation: qsacle 3s linear infinite;
}
.about .box4 .container .map .quan .qb::after {
  content: '';
  border-radius: 50%;
  background: rgba(0, 209, 209, 0.7);
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) scale(0);
  animation: qsacle 3s 1.5s linear infinite;
}
.about .box4 .container .map .quan .qb.q1 {
  left: 18.41666667%;
  top: 39%;
}
.about .box4 .container .map .quan .qb.q1::before,
.about .box4 .container .map .quan .qb.q1::after {
  width: 2.18rem;
  height: 2.18rem;
}
.about .box4 .container .map .quan .qb.q2 {
  left: 29.91666667%;
  top: 86%;
}
.about .box4 .container .map .quan .qb.q2::before,
.about .box4 .container .map .quan .qb.q2::after {
  width: 1.94rem;
  height: 1.94rem;
}
.about .box4 .container .map .quan .qb.q3 {
  left: 52.33333333%;
  top: 33.16666667%;
}
.about .box4 .container .map .quan .qb.q3::before,
.about .box4 .container .map .quan .qb.q3::after {
  width: 2.21rem;
  height: 2.21rem;
}
.about .box4 .container .map .quan .qb.q4 {
  left: 68.5%;
  top: 21.83333333%;
}
.about .box4 .container .map .quan .qb.q4::before,
.about .box4 .container .map .quan .qb.q4::after {
  width: 2.29rem;
  height: 2.29rem;
}
.about .box4 .container .map .quan .qb.q5 {
  left: 77.08333333%;
  top: 41%;
}
.about .box4 .container .map .quan .qb.q5::before,
.about .box4 .container .map .quan .qb.q5::after {
  width: 1.56rem;
  height: 1.56rem;
}
.about .box4 .container .map .quan .qb.q6 {
  left: 75.58333333%;
  top: 58.83333333%;
}
.about .box4 .container .map .quan .qb.q6::before,
.about .box4 .container .map .quan .qb.q6::after {
  width: 0.76rem;
  height: 0.76rem;
}
.about .box4 .container .map .quan .qb.q7 {
  left: 83.75%;
  top: 43.16666667%;
}
.about .box4 .container .map .quan .qb.q7::before,
.about .box4 .container .map .quan .qb.q7::after {
  width: 0.66rem;
  height: 0.66rem;
}
.about .box4 .container .map .img2 {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 3;
}
.about .box4 .container .map .tbox {
  width: 100%;
  height: 100%;
  position: absolute;
  z-index: 4;
  left: 0;
  top: 0;
}
@media (max-width: 767px) {
  .about .box4 .container .map .tbox {
    display: none;
  }
}
.about .box4 .container .map .tbox .tb {
  position: absolute;
  opacity: 0;
  z-index: 99;
}
.about .box4 .container .map .tbox .tb.t1 {
  left: 18%;
  top: 31.33333333%;
  opacity: 0;
  transition: all 0.4s;
}
.about .box4 .container .map .tbox .tb.t1 .ts {
  width: 280px;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
}
.about .box4 .container .map .tbox .tb.t2 {
  left: 51.41666667%;
  top: 48.5%;
}
.about .box4 .container .map .tbox .tb.t2 .td::before {
  transform: rotateZ(180deg);
}
.about .box4 .container .map .tbox .tb.t2 .ts {
  width: 280px;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
}
.about .box4 .container .map .tbox .tb.t3 {
  left: 83.91666667%;
  top: 31.33333333%;
}
.about .box4 .container .map .tbox .tb.t3 .ts {
  width: 280px;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
}
.about .box4 .container .map .tbox .tb.t4 {
  left: 81.33333333%;
  top: 55.83333333%;
}
.about .box4 .container .map .tbox .tb.t4 .td::before {
  transform: rotateZ(180deg);
}
.about .box4 .container .map .tbox .tb.t4 .ts {
  width: 230px;
  top: 100%;
  left: -13px;
}
@media (max-width: 991px) {
  .about .box4 .container .map .tbox .tb.t4 .ts {
    width: 220px;
    left: -60px;
    padding: 13px 15px 13px 20px;
  }
}
.about .box4 .container .map .tbox .tb .td {
  width: 14px;
  height: 6px;
  position: relative;
  z-index: 2;
}
.about .box4 .container .map .tbox .tb .td::before {
  content: '';
  border-top: 6px solid #fff;
  border-left: 7px solid transparent;
  border-right: 7px solid transparent;
  display: block;
}
.about .box4 .container .map .tbox .tb .ts {
  position: absolute;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 6px;
  box-shadow: 0 0 0.1rem 0 rgba(11, 196, 196, 0.16);
  padding: 13px 20px;
}
.about .box4 .container .map .tbox .tb .ts .ts1 {
  width: 100%;
  font-size: 14px;
  text-align: center;
  font-weight: bold;
  line-height: 1.42857143em;
  color: #00d1d1;
  margin-bottom: 8px;
}
.about .box4 .container .map .tbox .tb .ts .ts2 {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
}
.about .box4 .container .map .tbox .tb .ts .ts2 span {
  width: 100%;
  position: relative;
  color: #000;
  font-size: 14px;
  font-weight: bold;
  line-height: 1.42857143em;
  padding-left: 14px;
  margin-bottom: 4px;
}
.about .box4 .container .map .tbox .tb .ts .ts2 span:last-child {
  margin-bottom: 0;
}
.about .box4 .container .map .tbox .tb .ts .ts2 span::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #00d1d1;
  position: absolute;
  left: 0;
  top: 8px;
}
.about .box4 .container .list {
  width: 100%;
  height: 1.6rem;
  margin-top: 0.63rem;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  padding-top: 0.4rem;
  position: relative;
  overflow: hidden;
}
.about .box4 .container .list ul {
  position: absolute;
  top: 0.4rem;
  display: flex;
  left: 0;
}
.about .box4 .container .list ul li {
  width: 2.46rem;
  height: 1.2rem;
  border: 0.03rem solid #f8f8f8;
  background: #f8f8f8;
  transition: all 0.4s;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  flex-shrink: 0;
  margin: 0 0.1rem;
  overflow: hidden;
}
.about .box4 .container .list ul li img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}
.about .box4 .container .list ul li:hover {
  border: 3px solid #00d1d1;
}
.about .box5 {
  width: 100%;
  padding: 0.95rem 0;
  background: #f4f4f4;
}
.about .box5 .top .title {
  line-height: 1.2em;
  color: #000;
  font-weight: bold;
  text-align: center;
}
.about .box5 .top .txt {
  color: #999;
  text-align: center;
  line-height: 1.44444444em;
  margin-top: 0.15rem;
}
.about .box5 .list {
  width: 100%;
  margin-top: 0.44rem;
  overflow: hidden;
}
.about .box5 .list .u1 {
  width: 100%;
  height: 2rem;
  position: relative;
  margin-bottom: 0.4rem;
}
.about .box5 .list .u1 ul {
  left: 0;
}
.about .box5 .list .u1 ul li .img img {
  width: 80%;
}
.about .box5 .list .u2 {
  width: calc(100% + 2.4rem);
  height: 2rem;
  position: relative;
  margin: 0 -1.2rem 0.4rem;
}
.about .box5 .list .u2 ul {
  right: 0;
}
.about .box5 .list .u2 ul li .img img {
  width: 80%;
}
.about .box5 .list .u3 {
  width: 100%;
  height: 2rem;
  position: relative;
}
.about .box5 .list .u3 ul {
  left: 0;
}
.about .box5 .list .u3 ul li .img img {
  width: 80%;
}
.about .box5 .list ul {
  position: absolute;
  top: 0;
  display: flex;
}
.about .box5 .list ul li {
  width: 2rem;
  height: 2rem;
  background: #fff;
  border-radius: 50%;
  border: 2px solid #fff;
  transition: all 0.4s;
  margin: 0 0.2rem;
  flex-shrink: 0;
  position: relative;
}
.about .box5 .list ul li .img {
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
}
.about .box5 .list ul li .img img {
  width: 90%;
  height: auto;
  object-fit: contain;
}
.about .box5 .list ul li .tbox {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  border-radius: 50%;
  background: rgba(0, 209, 209, 0.95);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 2;
  opacity: 0;
  transition: all 0.4s;
}
.about .box5 .list ul li .tbox .t1 {
  max-width: 110px;
  color: #fff;
  line-height: 1.33333333em;
  font-weight: bold;
  text-align: center;
}
.about .box5 .list ul li:hover .tbox {
  opacity: 1;
}
@keyframes qsacle {
  0% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(0);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(1.2);
  }
}
@keyframes scroll {
  0% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(5px);
  }
  100% {
    transform: translateY(0);
  }
}
@media (min-width: 1800px) {
  .about .box1 .bbs .tbox2 .bg span {
    border-left: 51vw solid #fff;
    border-right: 51vw solid #fff;
  }
}
@media (min-width: 1920px) {
  .about .box1 .bbs .tbox2 .bg span {
    border-left: 60vw solid #fff;
    border-right: 60vw solid #fff;
  }
}
.about .box3 .container .list .swiper-container .swiper-slide {
  cursor: pointer;
}
.about .box4 .container .map .tbox .tb.t1 .td em {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 2.21rem;
  height: 2.21rem;
  border-radius: 50%;
}
.about .box4 .container .map .tbox .tb.t2 .td em {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 2.21rem;
  height: 2.21rem;
  border-radius: 50%;
}
.about .box4 .container .map .tbox .tb.t3 .td em {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 1.56rem;
  height: 1.56rem;
  border-radius: 50%;
}
.about .box4 .container .map .tbox .tb.t4 .td em {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 1.3rem;
  height: 1.3rem;
  border-radius: 50%;
}
.about .box4 .container .map .tbox .tb {
  transition: all 0.4s;
}
.about .box4 .container .map .tbox .tb.on {
  opacity: 1;
}