.air-216 {
  overflow: hidden;
  height: 100vh;
  min-height: 660px;
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
}

.air-title {
  font-size: 46px;
  font-size: clamp(26px, 2.4vw, 46px);
  line-height: 46px;
  line-height: clamp(26px, 2.4vw, 46px);
}

@media screen and (max-width: 768px) {
  .air-title {
    font-size: 32px;
    line-height: 32px;
  }
}

.air-216-1 {
  width: 100%;
  height: 100vh;
  aspect-ratio: 1280/720;
}

.air-216-2 {
  padding: 6vw 0 3vw;
}

.air-216-2 .eh-container {
  text-align: center;
  display: flex;
  align-items: center;
  flex-direction: column;
}

.air-216-2 .air-title {
  margin-bottom: 47px;
}

.air-216-2 .air2-info {
  font-size: 20px;
  line-height: 40px;
  color: #3E3E3F;
}

.air-216-2 .small {
  color: #555657;
  font-size: 14px;
  line-height: 26px;
  margin: 20px 0 58px;
}

@media screen and (max-width: 768px) {
  .air-216-2 {
    padding: 80px 40px 60px
  }
    .air-216-2 .eh-container {
      text-align: left;
    }
  .air-216-2 .air-title {
    line-height: 44px;
  }

  .air-216-2 .air2-info {
    font-size: 14px;
    line-height: 26px;
    text-align: left;
  }

  .air-216-2 .small {
    display: block;
    width: 100%;
    margin: 20px 0 30px;
    text-align: left;
  }
}

/* 3 */
.air-216-3 {
  height: auto;
  padding: 6vw 0;
}

.air-216-3 .swiper {
  /* padding: 4vw 8vw 4vw; */
}

.air-216-3 .eh-container {
  position: relative;
  padding: 4vw 0vw 4vw;
}

.air-216-3 .air-title {
  width: 100%;
  text-align: center;
}

.air-216-3 .swiper-wrapper .swiper-slide {
  display: flex;
  gap: 40px;
  background-color: #fff;
}

.air-216-3 .swiper-wrapper .swiper-slide .year-image {
  /* 设置div坚持宽高比 */
  aspect-ratio: 700/596;
  width: 50%;
}

.air-216-3 .swiper-wrapper .swiper-slide .year-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.air-216-3 .swiper-wrapper .swiper-slide .year-item {
  aspect-ratio: 700/596;
  padding: 5vw 2vw;
  width: 50%;
  box-sizing: border-box;
}

.air-216-3 .swiper-wrapper .swiper-slide .year-item {
  height: 100%;
  background-color: #F5F6F7;
}

.air-216-3 .swiper-button-prev {
  color: #1A1B1B;
  left: -4vw;
  width: 56px;
  height: 56px;
  border: 1px solid #1A1B1B;
  border-radius: 50%;
  transition: all 0.3s;
}

.air-216-3 .swiper-button-next {
  color: #1A1B1B;
  right: -4vw;
  width: 56px;
  height: 56px;
  border: 1px solid #1A1B1B;
  border-radius: 50%;
  transition: all 0.3s;
}

.air-216-3 .swiper-button-prev::after,
.air-216-3 .swiper-button-next::after {
  font-size: 20px;
}
.air-216-3 .swiper-button-next:hover,
.air-216-3 .swiper-button-prev:hover {
  background: #1A1B1B;
  color: #fff;
}
.air-216-3 .swiper-horizontal>.swiper-pagination-bullets,
.air-216-3 .swiper-pagination-bullets.swiper-pagination-horizontal,
.air-216-3 .swiper-pagination-custom,
.air-216-3 .swiper-pagination-fraction {
  bottom: 0;
}

.air-216-3 .swiper-page {
  display: flex;
  position: absolute;
  gap: 10px;
  left: 50%;
  bottom: 0;
  transform: translate(-50%, 0%);
}

.air-216-3 .swiper-page-item {
  width: 26px;
  height: 4px;
  border-radius: 2px;
  background-color: #B1B3B5;
  bottom: 0 !important;
  cursor: pointer;
  transition: all 0.3s ease;
}

.air-216-3 .swiper-page-item.active {
  background-color: #1A1B1B;
  /* transform: scale(1.2); */
}

.year-item {
  flex: none;
  width: 300px;
}

.year-item .tit {
  font-size: 28px;
  line-height: 48px;
  cursor: pointer;
  margin-bottom: 30px;
}

.year-item .tit.active {
  color: #1F5AE3;
}

.month-item {
  display: flex;
  align-items: flex-start;
  line-height: 32px;
  font-size: 16px;
  margin-bottom: 16px;
}

.month-item-tit {
  width: 60px;
  color: #262A35;
  flex-shrink: 0;
}

.month-item-desc {
  color: #707787;
}



@media screen and (max-width: 768px) {
  .air-216-3 {
    height: auto;
  }

  .air-216-3 .swiper-button-prev,
  .air-216-3 .swiper-button-next {
    display: none;
  }

  .air-216-3 .swiper img {
    height: 100%;
    object-fit: cover;
  }

  .air-216-3 {
    height: auto;
    padding: 0vw 0 8vw;
  }

  .air-216-3 .swiper {
    padding: 0
  }

  .air-216-3 .swiper-wrapper .swiper-slide {
    flex-direction: column;
    gap: 0;
  }

  .air-216-3 .swiper-wrapper .swiper-slide .year-image {
    width: 100%;
  }

  .air-216-3 .swiper-page-item {
    height: 2px;
  }

  .air-216-3 .swiper-wrapper .swiper-slide .year-item {
    width: 100%;
    background-color: #fff;
    padding-bottom: 30px;
    padding: 20px;
    min-height: 500px;
  }

  .air-216-3 .air-title {
    padding: 10vw 0 8vw
  }

  .year-item .tit {
    text-align: left;
    margin-bottom: 5px;
  }

  .year-item {
    padding: 0 20px;
  }

  .history-box .year-item {
    width: 100%;
  }
  .month-item-tit {
    line-height: 22px;
  }
    .month-item-desc {
      line-height: 22px;
    }
}


/* 4 */
.air-216-4 {
  padding: 10vh 0;
  height: auto;
  background: #F5F6F7;
}

.air-216-4 .flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 6vh;
}

.sy-box {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  justify-content: center;
}

.sy-box-item {
  cursor: pointer;
  overflow: hidden;
  /* border-radius: 8px; */
  width: 449px;
  height: 340px;
}

.sy-box-item img {
  width: 100%;
  object-fit: cover;
  transition: all 1s;
}

.sy-box-item-title {
  height: 66px;
  line-height: 66px;
  font-size: 20px;
  text-align: center;
}

.sy-video-box {
  position: relative;
  overflow: hidden;
  width: 448px;
  height: 254px;
}

.sy-video-box:hover img {
  transform: scale(1.2);
}

.play-box {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60px;
  height: 60px;
  background-color: rgba(0, 0, 0, 0.5);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.8);
}

.play-button {
  width: 0;
  height: 0;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-bottom: 18px solid #fff;
  transform-origin: 50% 50%;
  transform: rotate(90deg);
  opacity: .8;
  margin-right: -2px;
}


@media screen and (max-width: 768px) {
  .air-216-4 .air-title {
    padding: 0 20px;
    line-height: 35px;
  }
  .sy-box {
    flex-direction: column;
    padding: 20px;
  }
  .sy-box-item {
    width: 100%;
    height: auto;
  }
  .sy-video-box {
    width: 100%;
    height: auto;
  }
}


/* 5 */
.flys-box {
  display: flex;
  margin-bottom: 40px;
}

.flys-item {
  width: 245px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  font-size: 40px;
  color: #181B24;
  padding: 0 25px;
  border-left: 1px solid #3A3F4D;
}

.flys-item:first-child {
  border-left: none;
}

.flys-item-flex {
  display: flex;
  align-items: baseline;
}

.flys-item .small {
  font-size: 16px;
  padding-left: 4px;
  white-space: nowrap;
}

.flys-item .sub-small {
  font-size: 14px;
  color: #707787;
}

@media screen and (max-width: 768px) {
  .flys-box {
    padding: 0 20px;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 20px;
    margin-bottom: 0;
  }

  .flys-item {
    width: auto;
    width: 150px;
    font-size: 22px;
    padding: 0 10px;
    gap: 20px;
    align-items: flex-start;
  }
    .flys-item:last-child{
      width: auto;;
    }

  .flys-item:first-child {
    border-left: 1px solid #3A3F4D;
  }
}

/* 6 */
.air-216-6 {
  padding: 12vh;
  height: auto;
  ;
  background-color: #F5F6F7;
}

.air-216-6 .flex-center {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 7vh;
  align-items: center;
}

.air-6-box {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.air-6-item {
  position: relative;
  width: 33%;
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.air-6-item img {
  width: 100%;
  object-fit: cover;
}

.air-6-item .desc-box {
  transition: all 0.5s;
  /* height: 328px; */
  padding: 15px 30px;
  background-color: #E8EAED;
}

.desc-box .desc-box-title {
  font-size: 20px;
  color: #1A1B1B;
  line-height: 46px;
}

.desc-box .desc-box-desc {
  font-size: 16px;
  color: #3E3E3F;
  line-height: 24px;
}

@media screen and (max-width: 768px) {
  .air-216-6 .air-title {
    text-align: center;
    line-height: 44px;
  }

  .air-216-6 {
    padding: 8vh 20px;
  }

  .air-6-box {
    flex-direction: column;
  }

  .air-6-item {
    width: 100%;
  }

  .air-6-item .desc-box {
    bottom: 0;
  }
}

.mobel-sec {
  background-color: #F5F6F7;
  padding-top: 80px;
  padding-bottom: 40px;
}

.mobel-sec .air-title {
  text-align: center;
  margin-bottom: 35px;
  line-height: 44px;
}

.mobel-sec .swiper {
  padding-bottom: 30px;
}

.mobel-sec .swiper-slide {
  padding: 20px;
}

.mobel-sec .swiper-slide img {
  width: 100%;
}

.mobel-sec .desc-box {
  margin-top: 32px;
  background-color: #F5F6F7;
}

.mobel-sec .desc-box .desc-box-title {
  text-align: center;
  margin-bottom: 10px;
}

.mobel-sec .desc-box .desc-box-desc {
  font-size: 14px;
  line-height: 24px;
  text-align: center;
}

.mobel-sec .swiper-pagination-bullet {
  width: 26px;
  height: 2px;
  border-radius: 1px;
  background-color: #B1B3B5;
  bottom: 0 !important;
}

.mobel-sec .swiper-pagination-bullet.swiper-pagination-bullet-active {
  background-color: #1A1B1B;
}<!--耗时1773896208.8035秒-->