.main .navs {
  background-color: #DFF1FF;
  padding: 1.5rem;
}
.main .navs .container {
  display: flex;
  align-items: center;
  gap: 10rem;
}
.main .navs .nav {
  font-size: 1.5rem;
  color: #373737;
}
.main .navs .nav.active {
  color: #0064B4;
  position: relative;
}
.main .navs .nav.active::before {
  content: "";
  width: 0.625rem;
  height: 0.625rem;
  background-color: #0064B4;
  position: absolute;
  left: -1.25rem;
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
  transform-origin: center center;
}
.section-title {
  display: inline-block;
}
.section-title .cn {
  color: #0062B1;
  font-size: 2.5rem;
  font-weight: bold;
  letter-spacing: 0.25rem;
}
.section-title .line-img {
  display: block;
  width: 13.25rem;
}
.section-title .en {
  color: #0062B1;
  font-size: 1.125rem;
  font-weight: bold;
}
.section-aboutus {
  padding: 4.5rem 0 7.5rem;
}
.section-aboutus .info {
  display: flex;
  align-items: center;
  gap: 4rem;
}
.section-aboutus .info .left {
  flex: 1;
  align-self: flex-end;
  display: flex;
  flex-direction: column;
  padding-bottom: 1rem;
}
.section-aboutus .info .left .desc {
  font-size: 0.875rem;
  color: #373737;
  line-height: 2.375rem;
}
.section-aboutus .info .left .desc2 {
  margin-top: 4.5rem;
  color: #0062B1;
  font-weight: bold;
  font-style: italic;
  font-size: 1.25rem;
  align-self: flex-end;
}
.section-aboutus .info .right {
  flex-shrink: 0;
  width: 34rem;
  position: relative;
}
.section-aboutus .info .right .video-player {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 4.25rem;
}
.section-aboutus .info .right .video-cover {
  width: 100%;
}
.section-aboutus .info .right .video-cover.hide {
  opacity: 0;
}
.section-aboutus .info .right .video-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  background-color: #000000;
}
.section-aboutus .info .right .video-wrapper .video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.section-aboutus .qgbj {
  margin-top: 7.5rem;
}
.section-aboutus .qgbj .title-block {
  display: inline-block;
  font-size: 1.5rem;
  color: #0062B1;
  font-weight: bold;
  position: relative;
  letter-spacing: 2px;
}
.section-aboutus .qgbj .title-block::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -50%;
  transform: translateY(-50%);
  width: 5.625rem;
  height: 5.625rem;
  background-image: url("https://yibofile.e-dou.com.cn/web/cn/images/introduce/bg1.png");
  background-size: 100%;
}
.section-aboutus .qgbj .desc {
  margin-top: 4rem;
  color: #373737;
  font-size: 0.875rem;
  line-height: 2.375rem;
}
.section-aboutus .qgbj .cells {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10rem;
  margin-top: 5rem;
}
.section-aboutus .qgbj .cells .cell .countup {
  background: linear-gradient(-90deg, #3C98EC 0%, #427ADC 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 3rem;
  line-height: 2.375rem;
  font-weight: 600;
  font-style: italic;
  padding: 0 0.5rem;
}
.section-aboutus .qgbj .cells .cell .countup.plus {
  position: relative;
}
.section-aboutus .qgbj .cells .cell .countup.plus::after {
  content: "+";
  position: absolute;
  top: 0;
  right: -0.5rem;
  font-size: 1rem;
  background: linear-gradient(-90deg, #3C98EC 0%, #427ADC 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-style: normal;
}
.section-aboutus .qgbj .cells .cell .unit {
  font-size: 1rem;
  color: #0062B1;
  font-style: italic;
}
.section-aboutus .qgbj .cells .cell .t2 {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  color: #373737;
  text-align: right;
}
.section-yfsl {
  background-color: #0064B4;
}
.section-yfsl .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}
.section-yfsl .left {
  width: 24rem;
}
.section-yfsl .left .desc {
  margin-top: 4rem;
  font-size: 0.875rem;
  color: #ffffff;
  line-height: 2.375rem;
}
.section-yfsl .left .cells {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 5rem;
}
.section-yfsl .left .cells .cell .countup {
  color: #ffffff;
  font-size: 1.875rem;
  line-height: 2.375rem;
  font-weight: 600;
  font-style: italic;
  padding: 0 0.5rem;
}
.section-yfsl .left .cells .cell .countup.plus {
  position: relative;
}
.section-yfsl .left .cells .cell .countup.plus::after {
  content: "+";
  position: absolute;
  top: 0;
  right: -0.5rem;
  font-size: 1rem;
  color: #ffffff;
  font-style: normal;
}
.section-yfsl .left .cells .cell .t1 {
  position: relative;
}
.section-yfsl .left .cells .cell .t1 .text-plus {
  position: absolute;
  top: -0.25rem;
  right: -0.5rem;
}
.section-yfsl .left .cells .cell .text-plus {
  font-size: 1rem;
  color: #ffffff;
  font-style: normal;
}
.section-yfsl .left .cells .cell .unit {
  font-size: 1rem;
  color: #ffffff;
  font-style: italic;
}
.section-yfsl .left .cells .cell .t2 {
  font-size: 0.875rem;
  color: #ffffff;
  text-align: right;
}
.section-yfsl .right {
  height: 31.25rem;
}
.section-yfsl .title-block {
  display: inline-block;
  font-size: 1.5rem;
  color: #ffffff;
  font-weight: bold;
  position: relative;
  letter-spacing: 2px;
}
.section-yfsl .title-block::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -50%;
  transform: translateY(-50%);
  width: 5.625rem;
  height: 5.625rem;
  background-image: url("https://yibofile.e-dou.com.cn/web/cn/images/introduce/bg1.png");
  background-size: 100%;
}
.section-detail {
  padding: 7.5rem 0;
}
.section-detail .detail {
  display: flex;
  gap: 4rem;
}
.section-detail .detail .title-block {
  display: inline-block;
  font-size: 1.5rem;
  color: #0062B1;
  font-weight: bold;
  position: relative;
  letter-spacing: 2px;
}
.section-detail .detail .title-block::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -2.8125rem;
  transform: translateY(-50%);
  width: 5.625rem;
  height: 5.625rem;
  background-image: url("https://yibofile.e-dou.com.cn/web/cn/images/introduce/bg1.png");
  background-size: 100%;
}
.section-detail .detail .left {
  flex-shrink: 0;
  width: 40.625rem;
  height: 26.875rem;
}
.section-detail .detail .right {
  flex: 1;
  padding: 5rem 0 2rem;
}
.section-detail .detail .right .desc {
  margin-top: 5rem;
  font-size: 0.875rem;
  color: #373737;
  line-height: 2.375rem;
}
.section-detail .detail:nth-child(2) {
  margin-top: 9.75rem;
  flex-direction: row-reverse;
}
@media screen and (max-width: 1400px) {
  .section-yfsl .left .desc {
    margin-top: 1rem;
  }
  .section-yfsl .left .cells {
    margin-top: 2rem;
  }
  .section-yfsl .right {
    height: 28rem;
  }
}
@media screen and (max-width: 1200px) {
  .section-yfsl .right {
    height: 24rem;
  }
}
@media screen and (max-width: 768px) {
  .main .navs {
    display: none;
  }
  .section-aboutus {
    padding: 2rem 0;
  }
  .section-aboutus .info {
    flex-direction: column;
    gap: 2rem;
  }
  .section-aboutus .info .left {
    margin-top: 2rem;
  }
  .section-aboutus .info .left .desc2 {
    margin-top: 1rem;
  }
  .section-aboutus .info .right {
    width: 100%;
    max-width: 32rem;
    margin: 1rem auto 0;
  }
  .section-aboutus .qgbj {
    margin-top: 2rem;
  }
  .section-aboutus .qgbj .desc {
    margin-top: 1rem;
  }
  .section-aboutus .qgbj .cells {
    margin-top: 2rem;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
  .section-aboutus .qgbj .cells .cell .t1 {
    text-align: center;
  }
  .section-aboutus .qgbj .cells .cell .t2 {
    text-align: center;
  }
  .section-yfsl {
    padding-top: 2rem;
  }
  .section-yfsl .container {
    flex-direction: column;
    padding: 0;
  }
  .section-yfsl .left {
    width: 100%;
    padding: 0 1rem;
  }
  .section-yfsl .left .desc {
    line-height: 2;
  }
  .section-yfsl .left .cells {
    justify-content: space-around;
  }
  .section-yfsl .right {
    margin-top: 2rem;
    width: 100%;
    max-width: 32rem;
    height: auto;
  }
  .section-yfsl .right img {
    display: block;
    width: 100%;
    height: auto;
  }
  .section-detail {
    padding: 2rem 0;
  }
  .section-detail .detail {
    flex-direction: column-reverse;
    gap: 1rem;
  }
  .section-detail .detail .left {
    width: 100%;
    height: auto;
  }
  .section-detail .detail .right {
    padding: 0;
  }
  .section-detail .detail .right .desc {
    margin-top: 1rem;
    line-height: 2;
  }
  .section-detail .detail:nth-child(2) {
    margin-top: 2rem;
    flex-direction: column-reverse;
  }
}