@media (max-width: 992px) {
  html {
    font-size: 20px;
  }
}
@media (max-width: 512px) {
  html {
    font-size: 10px;
  }
}
@keyframes a-fadeIn-bottom {
  from {
    opacity: 0;
    transform: translateY(100px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.mainCont .df {
  display: flex;
  flex-wrap: wrap;
}
.mainCont .box-banner {
  height: 500px;
  background: -moz-linear-gradient(left, #171924, #141C33);
  background: -webkit-linear-gradient(left, #171924, #141C33);
  background: -o-linear-gradient(left, #171924, #141C33);
  background: -ms-linear-gradient(left, #171924, #141C33);
  background: linear-gradient(to right, #171924, #141C33);
  display: flex;
  justify-content: flex-start;
  align-items: center;
}
.mainCont .box-banner img {
  left: 50%;
  transform: translateX(-50%);
  top: 0;
}
.mainCont .box-banner img.img-banner {
  display: block;
}
.mainCont .box-banner img.img-banner-m {
  display: none;
}
.mainCont .box-banner .box-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  animation: a-fadeIn-bottom 1s ease-in-out forwards;
}
.mainCont .box-banner .box-text::after {
  content: "";
  width: 78px;
  height: 4px;
  background-color: #fff;
  margin-top: 97px;
}
.mainCont .box-banner .box-text .banner-title {
  font-size: 48px;
  color: #fff;
  margin-bottom: 26px;
}
.mainCont .box-banner .box-text .banner-subTitle {
  font-size: 24px;
  color: rgba(223, 236, 255, 0.6);
}
.mainCont .box-tool-bar {
  height: 78px;
  box-shadow: 10px 0 50px rgba(56, 40, 38, 0.1);
}
.mainCont .box-tool-bar .box-tool-bar-cont {
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}
.mainCont .box-tool-bar .box-tool-bar-cont .tab-bar {
  font-size: 0;
}
.mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li {
  position: relative;
  padding-bottom: 26px;
  display: inline-block;
  font-size: 18px;
  color: #313642;
}
.mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background-color: transparent;
}
.mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li:nth-child(n+2) {
  margin-left: 54px;
}
.mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li:hover {
  cursor: pointer;
  color: #e94730;
}
.mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li:hover::after {
  background-color: #e94730;
}
.mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li.tab-active {
  color: #e94730;
}
.mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li.tab-active::after {
  background-color: #e94730;
}
.mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li.tab-active a {
  color: #e94730;
}
.mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li a {
  font-size: 18px;
  color: #313642;
}
.mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li a:hover {
  color: #e94730;
}
.mainCont .bar-margin {
  height: 40px;
  background: transparent;
}
.mainCont .mainCont-history {
  padding-top: 30px;
}
@keyframes scrollAniRight {
  from {
    transform: translateX(80%);
    opacity: 0;
  }
  to {
    transform: translateX(50%);
    opacity: 1;
  }
}
@keyframes scrollAniLeft {
  from {
    transform: translateX(-80%);
    opacity: 0;
  }
  to {
    transform: translateX(-50%);
    opacity: 1;
  }
}
.mainCont .mainCont-history .history .history-year {
  color: #e94730;
  font-size: 60px;
  font-weight: bold;
  top: 50px;
}
.mainCont .mainCont-history .history .history-event {
  font-size: 16px;
  line-height: 24px;
  color: #313642;
}
.mainCont .mainCont-history .history .history-event.history-even-left {
  left: 102px;
  padding-left: 40px;
}
.mainCont .mainCont-history .history .history-event.history-even-left:before {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  background: #e94730;
  top: 12px;
  left: 0;
  transform: translateY(-50%);
  border-radius: 50%;
}
.mainCont .mainCont-history .history .history-event.history-even-right {
  right: 118px;
  padding-right: 40px;
}
.mainCont .mainCont-history .history .history-event.history-even-right:after {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  background: #e94730;
  top: 12px;
  right: 0;
  transform: translateY(-50%);
  border-radius: 50%;
}
.mainCont .mainCont-history .history .history-line.history-line-2020 {
  width: 969px;
  height: 503px;
  background: url("../images/line-2020.png") no-repeat center center;
  background-size: 100% 100%;
}
.mainCont .mainCont-history .history .history-line.history-line-1 {
  width: 968px;
  height: 351px;
  background: url("../images/line-1.png") no-repeat center center;
  background-size: 100% 100%;
}
.mainCont .mainCont-history .history .history-line.history-line-2 {
  width: 968px;
  height: 253px;
  background: url("../images/line-2.png") no-repeat center center;
  background-size: 100% 100%;
}
.mainCont .mainCont-history .history .history-line.history-line-3 {
  width: 968px;
  height: 165px;
  background: url("../images/line-3.png") no-repeat center center;
  background-size: 100% 100%;
}
.mainCont .mainCont-history .history .history-line.history-line-4 {
  width: 968px;
  height: 408px;
  background: url("../images/line-4.png") no-repeat center center;
  background-size: 100% 100%;
}
.mainCont .mainCont-history .history.history-toright .history-year {
  left: 45px;
}
.mainCont .mainCont-history .history.history-toright .history-line {
  left: 108px;
  top: 160px;
}
.mainCont .mainCont-history .history.history-toleft .history-year {
  right: 45px;
}
.mainCont .mainCont-history .history.history-toleft .history-line {
  transform: rotateY(180deg);
  left: 108px;
  top: 160px;
}

.mainCont .mainCont-history .history.history-2022 {
  height: 510px;
}
.mainCont .mainCont-history .history.history-2022 .figure {
  top: -4px;
  left: 340px;
  width: 369px;
  height: 399px;
  background: url("../images/2022.png") no-repeat center center;
  background-size: 100% 100%;
  transform: translateX(-50%);
}
.mainCont .mainCont-history .history.history-2022 .history-event:nth-child(1) {
  top: 142px;
}
.mainCont .mainCont-history .history.history-2022 .history-event:nth-child(2) {
  top: 242px;
}
.mainCont .mainCont-history .history.history-2022 .history-event:nth-child(3) {
  top: 342px;
}
.mainCont .mainCont-history .history.history-2022 .history-event:nth-child(4) {
  bottom: 14px;
}
.mainCont .mainCont-history .history .history-line.history-line-2021 {
  width: 969px;
  height: 503px;
  background: url("../images/line-2020.png") no-repeat center center;
  background-size: 100% 100%;
}
.mainCont .mainCont-history .history.history-2021 {height: 664px; }
.mainCont .mainCont-history .history.history-2021 .figure-text {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 20px;
  font-weight: bold;
}
.mainCont .mainCont-history .history.history-2021 .figure {
  top: 170px;
  right: 340px;
  width: 369px;
  height: 299px;
  background: url("../images/2021.png") no-repeat center center;
  background-size: 100% 100%;
  transform: translateX(-50%);
}
.mainCont .mainCont-history .history.history-2021 .history-event:nth-child(1) {
  top: 142px;
}
.mainCont .mainCont-history .history.history-2021 .history-event:nth-child(2) {
  top: 242px;
}
.mainCont .mainCont-history .history.history-2021 .history-event:nth-child(3) {
  top: 342px;
}
.mainCont .mainCont-history .history.history-2021 .history-event:nth-child(4) {
  top: 442px;
}
.mainCont .mainCont-history .history.history-2021 .history-event:nth-child(5) {
  bottom: 14px;
}



.mainCont .mainCont-history .history.history-2020 {
  height: 664px;
}
.mainCont .mainCont-history .history.history-2020 .figure-text {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 20px;
  font-weight: bold;
}
.mainCont .mainCont-history .history.history-2020 .scroll-ani-left {
  top: 170px;
  left: 340px;
  width: 369px;
  height: 299px;
  background: url("../images/2020.png") no-repeat center center;
  background-size: 100% 100%;
  transform: translateX(-50%);
}
.mainCont .mainCont-history .history.history-2020 .history-event:nth-child(1) {
  top: 142px;
}
.mainCont .mainCont-history .history.history-2020 .history-event:nth-child(2) {
  top: 242px;
}
.mainCont .mainCont-history .history.history-2020 .history-event:nth-child(3) {
  top: 342px;
}
.mainCont .mainCont-history .history.history-2020 .history-event:nth-child(4) {
  top: 442px;
}
.mainCont .mainCont-history .history.history-2020 .history-event:nth-child(5) {
  top: 542px;
}
.mainCont .mainCont-history .history.history-2020 .history-event:nth-child(6) {
  bottom: 14px;
}


.mainCont .mainCont-history .history.history-1 {
  height: 519px;
}
.mainCont .mainCont-history .history.history-1 .figure {
  top: 72px;
  right: 340px;
  width: 366px;
  height: 293px;
  background: url("../images/2019.png") no-repeat center center;
  background-size: 100% 100%;
  transform: translateX(50%);
}
.mainCont .mainCont-history .history.history-1 .history-event:nth-child(1) {
  top: 142px;
}
.mainCont .mainCont-history .history.history-1 .history-event:nth-child(2) {
  top: 242px;
}
.mainCont .mainCont-history .history.history-1 .history-event:nth-child(3) {
  top: 342px;
}
.mainCont .mainCont-history .history.history-1 .history-event:nth-child(4) {
  bottom: 14px;
}
.mainCont .mainCont-history .history.history-2 {
  height: 510px;
}
.mainCont .mainCont-history .history.history-2 .figure-text {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 20px;
  font-weight: bold;
}
.mainCont .mainCont-history .history.history-2 .figure-1 {
  top: 100px;
  left: 166px;
  width: 162px;
  height: 164px;
  background: url("../images/2018-1.png") no-repeat center center;
  background-size: 100% 100%;
}
.mainCont .mainCont-history .history.history-2 .figure-2 {
  top: 100px;
  left: 350px;
  width: 162px;
  height: 164px;
  background: url("../images/2018-2.png") no-repeat center center;
  background-size: 100% 100%;
}
.mainCont .mainCont-history .history.history-2 .history-event:nth-child(1) {
  top: 142px;
}
.mainCont .mainCont-history .history.history-2 .history-event:nth-child(2) {
  top: 242px;
}
.mainCont .mainCont-history .history.history-2 .history-event:nth-child(3) {
  top: 342px;
}
.mainCont .mainCont-history .history.history-2 .history-event:nth-child(4) {
  bottom: 14px;
}
.mainCont .mainCont-history .history.history-3 {
  height: 510px;
}
.mainCont .mainCont-history .history.history-3 .figure {
  top: 46px;
  right: 340px;
  width: 359px;
  height: 358px;
  background: url("../images/2017.png") no-repeat center center;
  background-size: 100% 100%;
  transform: translateX(50%);
}
.mainCont .mainCont-history .history.history-3 .history-event:nth-child(1) {
  top: 142px;
}
.mainCont .mainCont-history .history.history-3 .history-event:nth-child(2) {
  top: 242px;
}
.mainCont .mainCont-history .history.history-3 .history-event:nth-child(3) {
  top: 342px;
}
.mainCont .mainCont-history .history.history-3 .history-event:nth-child(4) {
  bottom: 14px;
}
.mainCont .mainCont-history .history.history-4 {
  height: 510px;
}
.mainCont .mainCont-history .history.history-4 .figure {
  top: -4px;
  left: 340px;
  width: 280px;
  height: 316px;
  background: url("../images/2016.png") no-repeat center center;
  background-size: 100% 100%;
  transform: translateX(-50%);
}
.mainCont .mainCont-history .history.history-4 .history-event:nth-child(1) {
  top: 142px;
}
.mainCont .mainCont-history .history.history-4 .history-event:nth-child(2) {
  top: 242px;
}
.mainCont .mainCont-history .history.history-4 .history-event:nth-child(3) {
  top: 342px;
}
.mainCont .mainCont-history .history.history-4 .history-event:nth-child(4) {
  bottom: 14px;
}
.mainCont .mainCont-history .history.history-5 {
  height: 418px;
}
.mainCont .mainCont-history .history.history-5 .figure {
  top: -6px;
  right: 340px;
  width: 274px;
  height: 295px;
  background: url("../images/2015.png") no-repeat center center;
  background-size: 100% 100%;
  transform: translateX(50%);
}
.mainCont .mainCont-history .history.history-5 .history-event:nth-child(1) {
  top: 142px;
}
.mainCont .mainCont-history .history.history-5 .history-event:nth-child(2) {
  top: 242px;
}
.mainCont .mainCont-history .history.history-5 .history-event:nth-child(3) {
  bottom: 14px;
}
.mainCont .mainCont-history .history.history-6 {
  height: 418px;
}
.mainCont .mainCont-history .history.history-6 .figure {
  top: 40px;
  left: 340px;
  width: 394px;
  height: 258px;
  background: url("../images/2014.png") no-repeat center center;
  background-size: 100% 100%;
  transform: translateX(-50%);
}
.mainCont .mainCont-history .history.history-6 .history-event:nth-child(1) {
  top: 138px;
}
.mainCont .mainCont-history .history.history-6 .history-event:nth-child(2) {
  bottom: 106px;
}
.mainCont .mainCont-history-m {
  display: none;
}

@media (max-width: 992px) {
  .mainCont .box-banner {
    height: 90.6666666667vw;
    align-items: flex-start;
  }
  .mainCont .box-banner img {
    width: 100%;
    height: 100%;
  }
  .mainCont .box-banner img.img-banner {
    display: none;
  }
  .mainCont .box-banner img.img-banner-m {
    display: block;
  }
  .mainCont .box-banner .box-text {
    margin-top: 17.8666666667vw;
    align-items: center;
    justify-content: center;
  }
  .mainCont .box-banner .box-text::after {
    display: none;
  }
  .mainCont .box-banner .box-text .banner-title {
    position: relative;
    font-size: 2.4rem;
    font-weight: bold;
    margin-bottom: 2.9333333333vw;
  }
  .mainCont .box-banner .box-text .banner-title::after {
    content: "";
    position: absolute;
    top: 6.9rem;
    left: 50%;
    transform: translateX(-50%);
    width: 5.7rem;
    height: 0.25rem;
    background-color: #fff;
    margin-top: 2.45rem;
  }
  .mainCont .box-banner .box-text .banner-subTitle {
    font-size: 1.5rem;
  }
  .mainCont .box-banner .box-text .banner-subTitle p {
    display: block;
    text-align: center;
  }
  .mainCont .box-tool-bar {
    padding: 0 2.6rem 0 3.85rem;
    height: 5rem;
    box-shadow: 0.5rem 0 2.5rem rgba(56, 40, 38, 0.1);
  }
  .mainCont .box-tool-bar .box-tool-bar-cont {
    padding: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .mainCont .box-tool-bar .box-tool-bar-cont .tab-bar {
    white-space: nowrap;
    font-size: 0;
  }
  .mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li {
    padding-bottom: 1.4rem;
    font-size: 1.4rem;
    white-space: nowrap;
  }
  .mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li::after {
    height: 0.2rem;
  }
  .mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li:nth-child(n+2) {
    margin-left: 2.7rem;
  }
  .mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li:hover::after {
    background-color: transparent;
  }
  .mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li.tab-active {
    color: #e94730;
  }
  .mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li.tab-active::after {
    background-color: #e94730;
  }
  .mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li.tab-active a {
    color: #e94730;
  }
  .mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li.tab-active a:hover {
    color: #e94730;
  }
  .mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li a {
    font-size: 1.4rem;
  }
  .mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li a:hover {
    color: #313642;
  }
  .mainCont .box-tool-bar .box-tool-bar-cont::-webkit-scrollbar {
    display: none;
  }
  .mainCont .bar-margin {
    height: 4.5rem;
  }
  .mainCont .mainCont-history {
    display: none;
  }
  .mainCont .mainCont-history-m {
    display: block;
  }
  .mainCont .mainCont-history-m .history-part-m {
    margin-top: 3rem;
  }
  .mainCont .mainCont-history-m .history-part-m .m-part-title {
    font-size: 3rem;
    color: #ea4731;
  }
  .mainCont .mainCont-history-m .history-part-m .m-part-line {
    top: 6.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 90%;
    background: url("../images/line-mobile.png") repeat-y;
  }
  .mainCont .mainCont-history-m .history-part-m .m-part-cont {
    margin-top: 1.3rem;
    padding: 0 2.6rem;
    display: flex;
    justify-content: space-between;
  }
  .mainCont .mainCont-history-m .history-part-m .m-part-cont .box-part-cont-item {
    width: 50%;
  }
  .mainCont .mainCont-history-m .history-part-m .m-part-cont .box-part-cont-item .history-event-text-m {
    width: 100%;
    position: relative;
    font-size: 1.2rem;
    line-height: 1.5;
    text-align: justify;
    word-break: break-word;
    color: #313642;
  }
  .mainCont .mainCont-history-m .history-part-m .m-part-cont .box-part-cont-item .history-event-text-m::before {
    content: "";
    position: absolute;
    top: 0.3rem;
    width: 1rem;
    height: 1rem;
    background-color: #e94730;
    border-radius: 50%;
  }
  .mainCont .mainCont-history-m .history-part-m .m-part-cont .box-part-cont-item .history-event-text-m.left-point {
    padding-right: 1.8rem;
  }
  .mainCont .mainCont-history-m .history-part-m .m-part-cont .box-part-cont-item .history-event-text-m.left-point::before {
    right: 0;
    transform: translateX(50%);
  }
  .mainCont .mainCont-history-m .history-part-m .m-part-cont .box-part-cont-item .history-event-text-m.right-point {
    padding-left: 1.4rem;
  }
  .mainCont .mainCont-history-m .history-part-m .m-part-cont .box-part-cont-item .history-event-text-m.right-point::before {
    left: 0;
    transform: translateX(-50%);
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2020 {
    margin-top: 0;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2020 .m-part-cont .box-part-cont-item .figure {
    margin: 1rem 0 0 0;
    width: 37.2vw;
    height: 30vw;
    background: url("../images/2020.png") no-repeat;
    background-size: 100% 100%;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2020 .m-part-cont .box-part-cont-item .event-text-right-1 {
    margin-top: 12.1rem;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2020 .m-part-cont .box-part-cont-item .event-text-right-2 {
    margin-top: 12.1rem;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2020 .m-part-cont .box-part-cont-item .event-text-right-3 {
    margin-top: 3.25rem;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2020 .m-part-cont .box-part-cont-item .event-text-right-3::after {
    content: "";
    position: absolute;
    left: 0;
    transform: translateX(-50%);
    top: 1.3rem;
    width: 1rem;
    height: 300%;
    background-color: #fff;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2020 .m-part-cont .box-part-cont-item .event-text-left-2 {
    margin-top: 6.25rem;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2020 .m-part-cont .box-part-cont-item .event-text-left-3 {
    margin-top: 2.4rem;
  }

  .mainCont .mainCont-history-m .history-part-m.history-part-m-2019 .m-part-cont .box-part-cont-item .figure {
    margin: 1rem 0 0 1.4rem;
    width: 35.3333333333vw;
    height: 28.2666666667vw;
    background: url("../images/2019.png") no-repeat;
    background-size: 100% 100%;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2019 .m-part-cont .box-part-cont-item .event-text-left-1 {
    margin-top: 12.1rem;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2019 .m-part-cont .box-part-cont-item .event-text-right-2 {
    margin-top: 8.25rem;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2019 .m-part-cont .box-part-cont-item .event-text-right-3 {
    margin-top: 2.4rem;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2019 .m-part-cont .box-part-cont-item .event-text-right-3::after {
    content: "";
    position: absolute;
    left: 0;
    transform: translateX(-50%);
    top: 1.3rem;
    width: 1rem;
    height: 300%;
    background-color: #fff;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2018 .m-part-cont.polygon-bg {
    background: url("../images/m-right-polygon-bg.png") no-repeat right top;
    background-size: 32.5333333333vw 48.8vw;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2018 .m-part-cont .box-part-cont-item .chart {
    margin: 1.5rem 0 0 1.6rem;
    width: 21.6vw;
    height: 21.8666666667vw;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2018 .m-part-cont .box-part-cont-item .chart p {
    font-size: 1rem;
    line-height: 1.2rem;
    font-weight: bold;
    color: #3f4657;
    text-align: center;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2018 .m-part-cont .box-part-cont-item .chart.chart-1 {
    background: url("../images/2018-1.png");
    background-size: 100% 100%;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2018 .m-part-cont .box-part-cont-item .chart.chart-2 {
    background: url("../images/2018-1.png");
    background-size: 100% 100%;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2018 .m-part-cont .box-part-cont-item .event-text-left-2 {
    margin-top: 16rem;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2018 .m-part-cont .box-part-cont-item .event-text-left-2::after {
    content: "";
    position: absolute;
    right: 0;
    transform: translateX(50%);
    top: 1.3rem;
    width: 1rem;
    height: 300%;
    background-color: #fff;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2018 .m-part-cont .box-part-cont-item .event-text-right-1 {
    margin-top: 20.1rem;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2018 .m-part-cont .box-part-cont-item .figure {
    margin: 1rem 0 0 1.4rem;
    width: 35.8666666667vw;
    height: 35.8666666667vw;
    background: url("../images/2017.png") no-repeat;
    background-size: 100% 100%;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2017 .m-part-cont .box-part-cont-item .event-text-left-1 {
    margin-top: 6.45rem;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2017 .m-part-cont .box-part-cont-item .event-text-left-2 {
    margin-top: 3.85rem;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2017 .m-part-cont .box-part-cont-item .event-text-left-2.left-point::before {
    top: 50%;
    transform: translateX(50%) translateY(-50%);
    z-index: 3;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2017 .m-part-cont .box-part-cont-item .event-text-left-2::after {
    content: "";
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateX(50%);
    width: 1rem;
    height: 150%;
    background-color: #fff;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2016 .m-part-cont .box-part-cont-item .event-text-left-1 {
    margin-top: 17.5rem;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2016 .m-part-cont .box-part-cont-item .figure {
    margin: 0 0 0 2.1rem;
    width: 28.9333333333vw;
    height: 29.0666666667vw;
    background: url("../images/2016.png") no-repeat;
    background-size: 100% 100%;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2016 .m-part-cont .box-part-cont-item .event-text-right-2 {
    margin-top: 8rem;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2016 .m-part-cont .box-part-cont-item .event-text-right-2::after {
    content: "";
    position: absolute;
    left: 0;
    transform: translateX(-50%);
    top: 1.3rem;
    width: 1rem;
    height: 300%;
    background-color: #fff;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2015 .m-part-cont .box-part-cont-item .event-text-left-1 {
    margin-top: 15.3rem;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2015 .m-part-cont .box-part-cont-item .event-text-left-1::after {
    content: "";
    position: absolute;
    right: 0;
    transform: translateX(50%);
    top: 1.3rem;
    width: 1rem;
    height: 500%;
    background-color: #fff;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2015 .m-part-cont .box-part-cont-item .figure {
    margin: 1.25rem 0 0 2.1rem;
    width: 29.2vw;
    height: 28.5333333333vw;
    background: url("../images/2015.png") no-repeat;
    background-size: 100% 100%;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2014 .m-part-cont .box-part-cont-item .event-text-left-2 {
    margin-top: 6.15rem;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2014 .m-part-cont .box-part-cont-item .event-text-left-2::after {
    content: "";
    position: absolute;
    right: 0;
    transform: translateX(50%);
    top: 1.3rem;
    width: 1rem;
    height: 100%;
    background-color: #fff;
  }
  .mainCont .mainCont-history-m .history-part-m.history-part-m-2014 .figure {
    margin: 1.25rem 0 0 2.1rem;
    width: 52.5333333333vw;
    height: 34.4vw;
    background: url("../images/2014.png") no-repeat;
    background-size: 100% 100%;
  }
  .mainCont .figure-2014 {
    margin-bottom: 4rem;
    display: flex;
    justify-content: center;
  }
  .mainCont .figure-2014 img {
    z-index: 3;
    width: 51.2vw;
    height: 34.4vw;
  }
  .mainCont .history-part-m-2014and2015 {
    background: url("../images/m-left-polygon-bg.png") no-repeat left 11.5rem;
    background-size: 29.7333333333vw 47.4666666667vw;
  }
}