.about_a {
  background: url(../images/about_02.jpg) no-repeat center center / cover;
  padding-bottom: 4.8%;
}
.about_a .page-title-box .en {
  color: rgba(255, 255, 255, 0.6);
}
.about_a .page-title-box .cn {
  color: #ffffff;
}
.about_a .page-title-box .cn span::after,
.about_a .page-title-box .cn span::before {
  background: rgba(255, 255, 255, 0.3);
}
.about_a .left {
  width: 50%;
  float: left;
}
.about_a .left .company-name {
  color: #ffffff;
  font-size: 24px;
  margin-bottom: 36px;
}
.about_a .left .en {
  font-size: 48px;
  color: rgba(255, 255, 255, 0.2);
  padding-bottom: 26px;
}
.about_a .left .text {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 16px;
  color: #ffffff;
  line-height: 32px;
  padding-top: 42px;
  text-align: justify;
}
.about_a .right {
  float: right;
  position: relative;
}
.about_a .right .point-box {
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
}
.about_a .right .point-box .point {
  width: 30px;
  height: 30px;
  background: rgba(255, 255, 255, 0.2);
  position: absolute;
  -webkit-transform: translate(-50%, -50%);
     -moz-transform: translate(-50%, -50%);
      -ms-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
  -webkit-border-radius: 50%;
     -moz-border-radius: 50%;
          border-radius: 50%;
  opacity: .4;
}
.about_a .right .point-box .point::after {
  content: "";
  width: 10px;
  height: 10px;
  left: 10px;
  top: 10px;
  background: #fff;
  z-index: 10;
  -webkit-border-radius: 50%;
     -moz-border-radius: 50%;
          border-radius: 50%;
}
.about_a .right .point-box .point:nth-child(1) {
  left: 34.7368%;
  top: 47.8788%;
  -webkit-animation: ss 1s ease infinite alternate;
     -moz-animation: ss 1s ease infinite alternate;
          animation: ss 1s ease infinite alternate;
}
.about_a .right .point-box .point:nth-child(2) {
  left: 36.1404%;
  top: 45.4545%;
  -webkit-animation: ss 1s 1s ease infinite alternate;
     -moz-animation: ss 1s 1s ease infinite alternate;
          animation: ss 1s 1s ease infinite alternate;
}
.about_a .right .point-box .point:nth-child(3) {
  left: 37.1930%;
  top: 46.6667%;
  -webkit-animation: ss 1s 0.8s ease infinite alternate;
     -moz-animation: ss 1s 0.8s ease infinite alternate;
          animation: ss 1s 0.8s ease infinite alternate;
}
.about_a .right .point-box .point:nth-child(4) {
  left: 37.1930%;
  top: 41.2121%;
  -webkit-animation: ss 1s 1.2s ease infinite alternate;
     -moz-animation: ss 1s 1.2s ease infinite alternate;
          animation: ss 1s 1.2s ease infinite alternate;
}
.about_a .right .point-box .point:nth-child(5) {
  left: 38.5965%;
  top: 41.8182%;
  -webkit-animation: ss 1s 0.3s ease infinite alternate;
     -moz-animation: ss 1s 0.3s ease infinite alternate;
          animation: ss 1s 0.3s ease infinite alternate;
}
.about_a .right .point-box .point:nth-child(6) {
  left: 36.3158%;
  top: 34.2424%;
  -webkit-animation: ss 1s 0.5s ease infinite alternate;
     -moz-animation: ss 1s 0.5s ease infinite alternate;
          animation: ss 1s 0.5s ease infinite alternate;
}
.about_a .right .point-box .point:nth-child(7) {
  left: 75.2632%;
  top: 36.0606%;
  -webkit-animation: ss 1s 0.3s ease infinite alternate;
     -moz-animation: ss 1s 0.3s ease infinite alternate;
          animation: ss 1s 0.3s ease infinite alternate;
}
@-webkit-keyframes ss {
  0% {
    opacity: .4;
  }
  1% {
    opacity: 1;
  }
}
@-moz-keyframes ss {
  0% {
    opacity: .4;
  }
  1% {
    opacity: 1;
  }
}
@keyframes ss {
  0% {
    opacity: .4;
  }
  1% {
    opacity: 1;
  }
}
.about_b .page-title-box {
  background-color: #f6f6f6;
}
.about_b .out-box {
  position: relative;
  overflow: hidden;
}
.about_b .out-box .rt-img {
  float: right;
  width: 50%;
}
.about_b .out-box .rt-img img {
  width: 100%;
}
.about_b .out-box .wrap {
  position: absolute;
  left: 50%;
  top: 0%;
  height: 100%;
  -webkit-transform: translateX(-50%);
     -moz-transform: translateX(-50%);
      -ms-transform: translateX(-50%);
          transform: translateX(-50%);
}
.about_b .out-box .wrap ul {
  height: 100%;
  width: 50%;
}
.about_b .out-box .wrap ul li {
  height: 33.3333%;
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
     -moz-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  position: relative;
}
.about_b .out-box .wrap ul li .inbox {
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
     -moz-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}
.about_b .out-box .wrap ul li .iconbox {
  width: 80px;
  height: 80px;
  position: relative;
  overflow: hidden;
  -webkit-box-flex: 0;
  -webkit-flex-grow: 0;
     -moz-box-flex: 0;
      -ms-flex-positive: 0;
          flex-grow: 0;
  margin-right: 20px;
  -webkit-border-radius: 4px;
     -moz-border-radius: 4px;
          border-radius: 4px;
}
.about_b .out-box .wrap ul li .iconbox img {
  width: 100%;
  -webkit-transition: all 0.5s;
  -o-transition: all 0.5s;
  -moz-transition: all 0.5s;
  transition: all 0.5s;
  -webkit-border-radius: 4px;
     -moz-border-radius: 4px;
          border-radius: 4px;
}
.about_b .out-box .wrap ul li .text-box .tl {
  font-size: 18px;
  font-weight: bold;
  color: #333333;
  margin-bottom: 14px;
  -webkit-transition: all 0.5s;
  -o-transition: all 0.5s;
  -moz-transition: all 0.5s;
  transition: all 0.5s;
}
.about_b .out-box .wrap ul li .text-box .te {
  font-size: 16px;
  color: #404040;
  -webkit-transition: all 0.5s;
  -o-transition: all 0.5s;
  -moz-transition: all 0.5s;
  transition: all 0.5s;
}
.about_b .out-box .wrap ul li .iconbox::after {
  content: "";
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  border: solid 1px #cccccc;
  -webkit-transition: all 0.5s;
  -o-transition: all 0.5s;
  -moz-transition: all 0.5s;
  transition: all 0.5s;
  -webkit-border-radius: 4px;
     -moz-border-radius: 4px;
          border-radius: 4px;
}
.about_b .out-box .wrap ul li::after {
  content: "";
  width: 960px;
  right: 0;
  height: 100%;
  -webkit-transition: all 0.5s;
  -o-transition: all 0.5s;
  -moz-transition: all 0.5s;
  transition: all 0.5s;
  left: auto;
  z-index: -1;
}
.about_b .out-box .wrap ul li:hover .inbox .iconbox img {
  -webkit-transform: translateY(-100%);
     -moz-transform: translateY(-100%);
      -ms-transform: translateY(-100%);
          transform: translateY(-100%);
}
.about_b .out-box .wrap ul li:hover .inbox .iconbox::after {
  border-color: rgba(255, 255, 255, 0.1);
}
.about_b .out-box .wrap ul li:hover .inbox .text-box .sin-box .tl {
  color: rgba(255, 255, 255, 0.9);
}
.about_b .out-box .wrap ul li:hover .inbox .text-box .sin-box .te {
  color: rgba(255, 255, 255, 0.8);
}
.about_b .out-box .wrap ul li:hover::after {
  background-color: #0055aa;
}
.about_c {
  background-color: #f7f7f7;
  padding-bottom: 6%;
}
.about_c .swiper-box {
  position: relative;
}
.about_c .swiper-box .wrap {
  padding: 0 100px;
  position: relative;
  z-index: 30;
}
.about_c .swiper-box .wrap .btn {
  position: absolute;
  top: 50%;
  -webkit-transform: translateY(-50%);
     -moz-transform: translateY(-50%);
      -ms-transform: translateY(-50%);
          transform: translateY(-50%);
  z-index: 999;
}
.about_c .swiper-box .wrap .prev_history {
  left: 0;
}
.about_c .swiper-box .wrap .next_history {
  right: 0;
}
.about_c .swiper-box #history {
  height: 400px;
}
.about_c .swiper-box #history .swiper-slide {
  height: 100%;
  padding-left: 5px;
}
.about_c .swiper-box #history .swiper-slide .txt-box {
  height: 50%;
  position: relative;
  width: 160%;
  left: -24%;
  padding-left: 40px;
}
.about_c .swiper-box #history .swiper-slide .txt-box .year {
  color: #0055aa;
  height: 36px;
  font-size: 30px;
  font-weight: bold;
  margin-bottom: 26px;
  -webkit-transition: all 0.5s;
  -o-transition: all 0.5s;
  -moz-transition: all 0.5s;
  transition: all 0.5s;
}
.about_c .swiper-box #history .swiper-slide .txt-box .text {
  color: #404040;
  line-height: 26px;
  font-size: 16px;
}
.about_c .swiper-box #history .swiper-slide .txt-box::after {
  content: "";
  width: 11px;
  height: 11px;
  background: url(../images/xuhao.png) no-repeat center center;
  left: -5px;
  top: 0;
}
.about_c .swiper-box #history .swiper-slide .txt-box::before {
  content: "";
  width: 1px;
  left: 0;
  bottom: 0;
  background-color: #e5e5e5;
  top: 11px;
}
.about_c .swiper-box #history .swiper-slide:nth-child(2n) {
  top: 50%;
}
.about_c .swiper-box #history .swiper-slide:nth-child(2n) .txt-box {
  padding-top: 60px;
}
.about_c .swiper-box #history .swiper-slide:nth-child(2n) .txt-box::after {
  top: auto;
  bottom: 0;
}
.about_c .swiper-box #history .swiper-slide:nth-child(2n) .txt-box::before {
  top: 0;
  bottom: 11px;
}
.about_c .swiper-box #history .swiper-slide:nth-child(5n+1) .txt-box {
  left: 0;
}
.about_c .swiper-box #history .swiper-slide:hover .txt-box .year {
  font-size: 36px;
}
.about_c .swiper-box::after {
  content: "";
  width: 100%;
  left: 0;
  top: 50%;
  height: 1px;
  background-color: #e5e5e5;
  z-index: 0;
}
.about_d {
  padding-bottom: 5.2083%;
}
.about_d .wrap {
  position: relative;
}
.about_d .wrap .right,
.about_d .wrap .left {
  width: 50%;
}
.about_d .wrap .right {
  position: absolute;
  right: 0;
  top: 0;
  height: 100%;
  padding-left: 60px;
}
.about_d .wrap .right ul {
  height: 100%;
  overflow: auto;
  padding-right: 40px;
}
.about_d .wrap .right ul li {
  margin-bottom: 24px;
}
.about_d .wrap .right ul li .title {
  font-size: 18px;
  font-weight: bold;
  margin-bottom: 24px;
}
.about_d .wrap .right ul li .text-box {
  line-height: 26px;
  color: #404040;
  padding: 24px 0;
  border-top: dashed 1px #e5e5e5;
  border-bottom: dashed 1px #e5e5e5;
  font-size: 16px;
}
@media (max-width: 1440px) {
  .about_a .left .company-name {
    margin-bottom: 30px;
  }
  .about_a .left .en {
    font-size: 40px;
  }
  .about_a .left .text {
    padding-top: 30px;
  }
  .about_c .swiper-box #history .swiper-slide .txt-box .text {
    font-size: 16px;
    line-height: 26px;
  }
}
@media (max-width: 1366px) {
  .about_a .left .text {
    font-size: 14px;
    line-height: 28px;
  }
  .about_a .left .company-name {
    font-size: 20px;
    margin-bottom: 20px;
  }
  .about_a .left .en {
    font-size: 30px;
  }
  .about_a .right {
    width: 520px;
  }
  .about_b .out-box .wrap ul li .text-box .te {
    font-size: 14px;
  }
  .about_c .swiper-box #history .swiper-slide .txt-box .year {
    font-size: 24px;
    height: 30px;
  }
  .about_c .swiper-box #history .swiper-slide .txt-box .text {
    font-size: 14px;
    line-height: 24px;
  }
  .about_c .swiper-box #history .swiper-slide:hover .txt-box .year {
    font-size: 30px;
  }
  .about_d .wrap .right ul li .text-box {
    font-size: 14px;
  }
}
@media (max-width: 1024px) {
  .about_a .left .text {
    font-size: 14px;
    line-height: 28px;
  }
  .about_a .right {
    width: 45%;
  }
}
@media (max-width: 768px) {
  .about_a {
    padding-bottom: 50px;
  }
  .about_a .left {
    width: 100%;
    margin-bottom: 30px;
  }
  .about_a .left .text {
    font-size: 14px;
    line-height: 28px;
  }
  .about_a .left .company-name {
    font-size: 16px;
    margin-bottom: 10px;
  }
  .about_a .left .en {
    font-size: 20px;
    padding-bottom: 15px;
  }
  .about_a .left .text {
    padding-top: 10px;
  }
  .about_a .right {
    width: 100%;
  }
  .about_b .out-box .rt-img {
    float: none;
    width: 100%;
  }
  .about_b .out-box .wrap {
    position: static;
    -webkit-transform: none;
       -moz-transform: none;
        -ms-transform: none;
            transform: none;
  }
  .about_b .out-box .wrap ul {
    width: 100%;
    padding: 20px 0;
  }
  .about_b .out-box .wrap ul li {
    margin-bottom: 20px;
  }
  .about_b .out-box .wrap ul li .iconbox {
    width: 80px;
    height: 80px;
    -webkit-box-flex: 0;
    -webkit-flex-grow: 0;
       -moz-box-flex: 0;
        -ms-flex-positive: 0;
            flex-grow: 0;
    -webkit-flex-shrink: 0;
        -ms-flex-negative: 0;
            flex-shrink: 0;
  }
  .about_b .out-box .wrap ul li .text-box .tl {
    font-size: 16px;
  }
  .about_b .out-box .wrap ul li:last-child {
    margin-bottom: 0;
  }
  .about_c .swiper-box .wrap {
    padding: 0;
  }
  .about_c .swiper-box .wrap .btn {
    display: none;
  }
  .about_c .swiper-box #history {
    height: 200px;
  }
  .about_c .swiper-box #history .swiper-slide .txt-box {
    height: 100%;
    width: 100%;
    position: relative;
    left: auto;
    top: auto;
    bottom: auto;
    right: auto;
  }
  .about_c .swiper-box #history .swiper-slide:nth-child(2n) {
    top: 0;
  }
  .about_c .swiper-box #history .swiper-slide:nth-child(2n) .txt-box {
    padding-top: 0;
    padding-left: 20px;
  }
  .about_c .swiper-box #history .swiper-slide:nth-child(2n) .txt-box:after {
    top: 0;
    bottom: auto;
  }
  .about_c .swiper-box #history .swiper-slide:nth-child(2n) .txt-box::before {
    top: 11px;
    bottom: 0;
  }
  .about_c .swiper-box::after {
    display: none;
  }
  .about_d .wrap .right,
  .about_d .wrap .left {
    width: 100%;
  }
  .about_d .wrap .right {
    position: static;
    height: auto;
    padding: 30px 0;
  }
}