/* banner */
.banner video {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 1920 / 700;
}


/* about */
.about {
  margin-top: 30px;
  padding-top: 27px;
  padding-bottom: 30px;
  position: relative;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.about::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, .25);
}

.about .container {
  position: relative;
  z-index: 1;
}

.about .title {
  color: #fff;
  margin: 0 0 10px;
}

.about .info {
  color: #fff;
  line-height: 1.8;
  max-height: 116px;
}

@media (min-width: 1200px) {
  .about {
    margin-top: 60px;
    padding-bottom: 80px;
  }

  .about .title {
    margin-bottom: 23px;
  }

  .about .info {
    max-height: 202px;
  }
}

@media (min-width: 1440px) {
  .about {
    padding-bottom: 106px;
  }
}


/* advantage */
.advantage {
  padding-top: 30px;
}

.advantage .tab-pane {
  position: relative;
}

.advantage .tit-wrap {
  position: absolute;
  top: 50%;
  left: 20px;
  max-width: calc(100% - 40px);
  padding: 7px 15px;
  transform: translateY(-50%);
  background: rgba(51, 51, 51, .6);
}

.advantage .title {
  color: #fff;
  margin: 0;
}

.advantage .list-tag {
  margin-bottom: 10px;
}

.advantage .tab-list {
  height: 100%;
  margin: 0;
  background: #616161;
  flex-direction: column;
  align-self: center;
}

.advantage .tab-list li {
  margin: 0;
  cursor: pointer;
}

.advantage .tab-list li.active {
  background: var(--style-color);
}

.advantage .icon-group {
  color: #fff;
  padding: 10px 15px;
  border-bottom: 1px solid #FFFFFF;
  display: flex;
  align-items: center;
}

.advantage .icon {
  width: 35px;
  height: 35px;
  line-height: 35px;
  text-align: center;
  border-radius: 50%;
  border: 1px solid #FFFFFF;
}

.advantage .icon i {
  font-size: 20px;
}

.advantage .tit {
  margin-left: 10px;
}

@media (min-width: 768px) {
  .advantage .list-tag {
    height: 100%;
    margin-bottom: 0;
  }

  .advantage .icon {
    width: 45px;
    height: 45px;
    line-height: 45px;
  }

  .advantage .icon i {
    font-size: 25px;
  }
}

@media (min-width: 992px) {
  .advantage .row {
    flex-direction: row-reverse;
  }

  .advantage .lt {
    padding-left: 0;
  }

  .advantage .rt {
    padding-right: 0;
  }

  .advantage .tab-list li.active::before {
    content: '';
    position: absolute;
    top: 0;
    right: 1px;
    transform: translate(100%, -100%);
    border-left: 13px solid #0582B2;
    border-top: 12px solid transparent;
    z-index: -1;
  }

  .advantage .tab-list li.active::after {
    content: '';
    position: absolute;
    top: 0;
    right: 1px;
    width: 13px;
    height: 100%;
    background: var(--style-color);
    transform: translateX(100%);
  }
}

@media (min-width: 1200px) {
  .advantage {
    padding-top: 65px;
  }

  .advantage .tit-wrap {
    left: 119px;
    padding: 45px 25px;
    max-width: 383px;
  }

  .advantage .tab-list li {
    padding: 0 15px;
  }

  .advantage .icon-group {
    padding: 15px 25px;
  }

  .advantage .tit {
    margin-left: 25px;
  }
}

@media (min-width: 1440px) {
  .advantage .tab-list li {
    padding: 0 30px;
  }

  .advantage .icon {
    width: 57px;
    height: 57px;
    line-height: 57px;
  }

  .advantage .icon i {
    font-size: 35px;
  }

  .advantage .tit {
    font-size: 20px;
  }
}

@media (min-width: 1640px) {
  .advantage .tit-wrap {
    padding: 90px 51px;
  }

  .advantage .tab-list li {
    padding: 0 46px;
  }

  .advantage .icon-group {
    padding: 27px 43px;
  }

  .advantage .tit {
    font-size: 26px;
  }
}

@media (min-width: 1740px) {
  .advantage .container {
    max-width: 1640px;
  }
}


/* network */
.network {
  padding: 30px 0;
}

.network .row:not(:last-child) {
  margin-bottom: 25px;
}

.network .rt {
  margin-top: 15px;
}

.network .title {
  margin: 0 0 10px;
  text-align: left;
}

.network .info {
  line-height: 1.8;
  max-height: 144px;
}

@media (min-width: 992px) {
  .network .row:nth-child(even) {
    flex-direction: row-reverse;
  }

  .network .rt {
    margin-top: 0;
    align-self: center;
  }

  .network .info {
    max-height: 172px;
  }
}

@media (min-width: 1200px) {
  .network {
    padding: 65px 0;
  }

  .network .row:not(:last-child) {
    margin-bottom: 52px;
  }

  .network .title {
    margin-bottom: 25px;
  }

  .network .info {
    max-height: 202px;
  }
}

@media (min-width: 1440px) {
  .network .lt {
    flex: 0 0 53%;
    max-width: 53%;
  }

  .network .rt {
    flex: 0 0 47%;
    max-width: 47%;
  }

  .network .row:nth-child(odd) .rt {
    padding-left: 57px;
  }

  .network .row:nth-child(even) .rt {
    padding-right: 57px;
  }

  .network .info {
    max-height: 260px;
  }
}


/* certificate */
.certificate {
  padding: 30px 0;
  background: #616161;
}

.certificate .title {
  color: #fff;
  margin: 0 0 20px;
}

.certificate .swiper-wrap {
  position: relative;
}

.certificate .swiper-slide {
  text-align: center;
}

.certificate .swiper-button-prev,
.certificate .swiper-button-next {
  width: auto;
  height: auto;
  margin-top: 0;
  background: none;
  font-size: 40px;
  line-height: 1;
  color: var(--style-color);
  display: none;
}

.certificate .swiper-button-prev::before,
.certificate .swiper-button-next::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 70%;
  height: 70%;
  border-radius: 50%;
  background: #fff;
}

.certificate .swiper-button-prev {
  left: 0;
  transform: translate(-50%, -50%);
}

.certificate .swiper-button-next {
  right: 0;
  transform: translate(50%, -50%);
}

.certificate .swiper-button-prev i,
.certificate .swiper-button-next i {
  font-size: inherit;
  position: relative;
  z-index: 1;
}

@media (min-width: 768px) {

  .certificate .swiper-button-prev,
  .certificate .swiper-button-next {
    display: block;
  }
}

@media (min-width: 1200px) {
  .certificate {
    padding: 49px 0 67px;
  }

  .certificate .title {
    margin-bottom: 39px;
  }
}


/* partners */
.partners {
  padding-top: 30px;
}

.partners .title {
  margin: 0 0 15px;
}

.partners .swiper-wrap {
  position: relative;
}

.partners .swiper-container {
  margin: 0 -6px;
  padding: 3px 6px 9px;
}

.partners .swiper-slide {
  text-align: center;
}

.partners .swiper-slide img {
  box-shadow: 0px 3px 6px 1px rgba(0, 0, 0, 0.16);
}

.partners .swiper-button-prev,
.partners .swiper-button-next {
  width: auto;
  height: auto;
  margin-top: 0;
  background: none;
  font-size: 26px;
  line-height: 1;
  color: #333;
  display: none;
}

.partners .swiper-button-prev {
  left: -5px;
  transform: translate(-100%, -50%);
}

.partners .swiper-button-next {
  right: -5px;
  transform: translate(100%, -50%);
}

.partners .swiper-button-prev i,
.partners .swiper-button-next i {
  font-size: inherit;
  position: relative;
  z-index: 1;
}

@media (min-width: 768px) {

  .partners .swiper-button-prev,
  .partners .swiper-button-next {
    display: block;
  }
}

@media (min-width: 1200px) {
  .partners {
    padding-top: 59px;
  }

  .partners .title {
    margin-bottom: 36px;
  }
}


/* milestone */
.milestone {
  padding-top: 30px;
  padding-bottom: 30px;
  position: relative;
}

.milestone .title {
  margin: 0 0 15px;
}

.milestone .swiper-gallery .swiper-slide {
  display: flex;
  align-items: center;
}

.milestone .lt {
  padding: 0 15px;
}

.milestone .lt .lt-title {
  margin-bottom: 10px;
}

.milestone .lt .info {
  max-height: 87px;
  line-height: 1.8;
  overflow-y: auto;
}

.milestone .lt .info::-webkit-scrollbar {
  width: 3px;
}

.milestone .lt .info::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, .4);
}

.milestone .lt .info::-webkit-scrollbar-thumb {
  background: #fff;
}

.milestone .rt {
  width: 100%;
  display: none;
}

.milestone .rt {
  position: relative;
  text-align: center;
}

.milestone .rt img:first-child {
  width: 99.8%;
  height: 99.8%;
  object-fit: cover;
}

.milestone .rt .zhezhao {
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
}

.milestone .swiper-thumbs::before {
  background: #000000;
}

.milestone .back {
  color: #fff;
  padding: 7px 15px;
  text-align: center;
  background: #333333;
  border-radius: 42px;
  cursor: pointer;
}

.milestone .swiper-slide-thumb-active .back {
  background: var(--style-color);
}

/* 底部轮播 */
.milestone .swiper-thumbs {
  position: relative;
  width: 100%;
  margin-top: 20px;
}

.milestone .swiper-thumbs::before {
  display: block;
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  content: '';
  width: 100%;
  height: 1px;
  background-color: #1B1B1B;
  z-index: 1;
}

.milestone .pic {
  display: inline-block;
  position: relative;
}

.milestone .pic img {
  border-radius: 80px;
}

.milestone .pic .swiper_title {
  position: absolute;
  left: 50%;
  top: 50%;
  font-weight: bold;
  color: #FFFFFF;
  transform: translate(-50%, -50%);
}

.milestone .pic::before {
  position: absolute;
  left: 0;
  top: 0;
  content: '';
  width: 100%;
  height: 100%;
  background: #333333;
  border-radius: 80px;
  opacity: 1;
}

.milestone .swiper-slide-thumb-active .pic::before {
  opacity: 0;
}

@media (min-width: 768px) {
  .milestone .rt {
    display: block;
  }

  .milestone .lt {
    flex: 0 0 42%;
    max-width: 42%;
    padding-left: calc((100vw - 5px - 720px + 30px) / 2);
  }

  .milestone .rt {
    flex: 0 0 58%;
    max-width: 58%;
  }
}

@media (min-width: 992px) {
  .milestone .title {
    position: absolute;
    left: 0;
    top: 65px;
    z-index: 2;
    width: fit-content;
    padding-left: calc((100vw - 5px - 960px + 30px) / 2);
  }

  .milestone .lt {
    padding-left: calc((100vw - 5px - 960px + 30px) / 2);
  }
}

@media (min-width: 1200px) {
  .milestone {
    padding-top: 56px;
    padding-bottom: 60px;
  }

  .milestone .title {
    top: 120px;
    padding-left: calc((100vw - 5px - 1140px + 30px) / 2);
  }

  .milestone .lt {
    padding-left: calc((100vw - 5px - 1140px + 30px) / 2);
  }

  .milestone .lt .lt-title {
    margin-bottom: 22px;
  }

  .milestone .swiper-thumbs {
    margin-top: -80px;
  }

  .milestone .back {
    padding: 15px;
  }
}

@media (min-width: 1440px) {
  .milestone .title {
    top: 150px;
    padding-left: calc((100vw - 5px - 1400px + 30px) / 2);
  }

  .milestone .lt {
    padding-left: calc((100vw - 5px - 1400px + 30px) / 2);
  }
}