.section-title {
  position: relative;
  font-weight: 500;
  font-size: 24px;
  color: #FFFFFF;
  margin-bottom: 60px;
}
.section-title::after {
  content: '';
  position: absolute;
  bottom: -20px;
  left: 0;
  width: 30px;
  border-bottom: 3px solid #4661E6;
}
.section-about {
  background-color: #01050a;
  padding: 100px 0;
}
.section-about .section-container {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
  -webkit-justify-content: space-between;
      -ms-flex-pack: justify;
          justify-content: space-between;
}
.section-about .section-container .about-left {
  position: relative;
  width: 48%;
}
.section-about .section-container .about-left .title {
  position: relative;
  font-weight: 500;
  font-size: 24px;
  color: #FFFFFF;
  margin-bottom: 60px;
}
.section-about .section-container .about-left .title::after {
  content: '';
  position: absolute;
  bottom: -20px;
  left: 0;
  width: 30px;
  border-bottom: 3px solid #4661E6;
}
.section-about .section-container .about-left .intro {
  font-weight: 400;
  font-size: 18px;
  color: #ACACAC;
  line-height: 40px;
}
.section-about .section-container .about-left .advantage-box {
  position: absolute;
  bottom: 50px;
  left: 0;
  z-index: 1000;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
      -ms-flex-align: center;
          align-items: center;
  background-color: #fff;
  width: 150%;
}
.section-about .section-container .about-left .advantage-box .box-item {
  -webkit-box-flex: 1;
  -webkit-flex: 1;
      -ms-flex: 1;
          flex: 1;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -webkit-flex-direction: column;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
      -ms-flex-pack: center;
          justify-content: center;
  padding: 40px 0;
}
.section-about .section-container .about-left .advantage-box .box-item .box-number span:nth-child(1) {
  font-weight: 800;
  font-size: 48px;
  color: #4661E6;
  line-height: 40px;
}
.section-about .section-container .about-left .advantage-box .box-item .box-number span:nth-child(2) {
  font-weight: 800;
  font-size: 48px;
  color: #4661E6;
  line-height: 40px;
}
.section-about .section-container .about-left .advantage-box .box-item .box-number span:last-child {
  font-weight: 400;
  font-size: 18px;
  color: #484848;
  margin-left: 10px;
}
.section-about .section-container .about-left .advantage-box .box-item .box-title {
  font-weight: 400;
  font-size: 18px;
  color: #484848;
  line-height: 40px;
}
.section-about .section-container .about-right {
  position: relative;
  width: 48%;
}
.section-about .section-container .about-right > img {
  width: 100%;
}
.section-about .section-container .about-right .play {
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
      -ms-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
  cursor: pointer;
}
.section-advantage {
  background: #0E121B;
  padding: 100px 0;
}
.section-advantage .section-container .advantage-list {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
      -ms-flex-wrap: wrap;
          flex-wrap: wrap;
}
.section-advantage .section-container .advantage-list .list-item {
  position: relative;
  width: 24%;
  margin-right: 1%;
  margin-bottom: 1%;
}
.section-advantage .section-container .advantage-list .list-item:nth-child(4n) {
  margin-right: 0;
}
.section-advantage .section-container .advantage-list .list-item > img {
  width: 100%;
}
.section-advantage .section-container .advantage-list .list-item .item-content {
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
      -ms-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -webkit-flex-direction: column;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-align: center;
  -webkit-align-items: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
      -ms-flex-pack: center;
          justify-content: center;
  width: 100%;
  height: 100%;
  padding: 40px 26px;
  cursor: pointer;
}
.section-advantage .section-container .advantage-list .list-item .item-content:hover {
  background: #1C2431;
  -webkit-box-align: start;
  -webkit-align-items: flex-start;
      -ms-flex-align: start;
          align-items: flex-start;
  -webkit-box-pack: start;
  -webkit-justify-content: flex-start;
      -ms-flex-pack: start;
          justify-content: flex-start;
}
.section-advantage .section-container .advantage-list .list-item .item-content:hover .item-intro {
  display: block;
  opacity: 1;
}
.section-advantage .section-container .advantage-list .list-item .item-content:hover .item-title {
  text-align: left;
}
.section-advantage .section-container .advantage-list .list-item .item-content:hover .item-title::after {
  content: '';
  position: absolute;
  bottom: -20px;
  left: 26px;
  -webkit-transform: translateX(-26px);
      -ms-transform: translateX(-26px);
          transform: translateX(-26px);
  width: 30px;
  border-bottom: 3px solid #4661E6;
}
.section-advantage .section-container .advantage-list .list-item .item-content .item-title {
  position: relative;
  font-weight: 500;
  font-size: 24px;
  color: #FFFFFF;
  text-align: center;
  margin-bottom: 43px;
}
.section-advantage .section-container .advantage-list .list-item .item-content .item-title::after {
  content: '';
  position: absolute;
  bottom: -20px;
  left: 50%;
  -webkit-transform: translateX(-50%);
      -ms-transform: translateX(-50%);
          transform: translateX(-50%);
  width: 30px;
  border-bottom: 3px solid #FFFFFF;
}
.section-advantage .section-container .advantage-list .list-item .item-content .item-intro {
  display: none;
  opacity: 0;
  font-weight: 500;
  font-size: 18px;
  color: #929292;
  line-height: 40px;
  -webkit-transition: all 1s;
          transition: all 1s;
}
.section-culture {
  padding: 100px 0;
  min-height: 942px;
  background-size: cover;
}
.section-culture .section-container .culture-list {
  position: relative;
  margin-top: 150px;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
      -ms-flex-wrap: wrap;
          flex-wrap: wrap;
}
.section-culture .section-container .culture-list::after {
  content: '';
  display: block;
  background-image: url(../images/c.png);
  width: 100%;
  height: 5px;
  position: absolute;
  top: 85px;
  left: 0;
}
.section-culture .section-container .culture-list .list-item {
  position: relative;
  width: 33.3%;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -webkit-flex-direction: column;
      -ms-flex-direction: column;
          flex-direction: column;
  padding: 30px 50px;
  z-index: 2;
}
.section-culture .section-container .culture-list .list-item .item-img {
  margin-bottom: 100px;
}
.section-culture .section-container .culture-list .list-item .item-img img {
  width: 106px;
  height: 106px;
}
.section-culture .section-container .culture-list .list-item .item-title {
  font-weight: 500;
  font-size: 20px;
  color: #FFFFFF;
  margin-bottom: 50px;
}
.section-culture .section-container .culture-list .list-item .item-intro {
  font-weight: 500;
  font-size: 18px;
  color: #C4C4C4;
  line-height: 40px;
}
.section-vision {
  position: relative;
  padding: 120px 0;
  min-height: 900px;
  background-size: cover;
  background-color: #0E121B;
}
.section-vision .vision-box {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  margin-top: 160px;
}
.section-vision .vision-box .vision-content {
  width: 50%;
  font-weight: 500;
  font-size: 24px;
  color: #D2D2D2;
  line-height: 40px;
}
.section-vision .vision-box .vision-img {
  position: absolute;
  right: 0;
  width: 50%;
}
.section-vision .vision-box .vision-img img {
  width: 100%;
}
@media (max-width: 990px) {
  .section-about {
    background-color: #01050a;
    padding: 60px 15px;
  }
  .section-about .section-container {
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: justify;
    -webkit-justify-content: space-between;
        -ms-flex-pack: justify;
            justify-content: space-between;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
        -ms-flex-direction: column;
            flex-direction: column;
  }
  .section-about .section-container .about-left {
    position: relative;
    width: 100%;
  }
  .section-about .section-container .about-left .title {
    position: relative;
    font-weight: 500;
    font-size: 24px;
    color: #FFFFFF;
    margin-bottom: 60px;
  }
  .section-about .section-container .about-left .title::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 0;
    width: 30px;
    border-bottom: 3px solid #4661E6;
  }
  .section-about .section-container .about-left .intro {
    font-weight: 400;
    font-size: 18px;
    color: #ACACAC;
    line-height: 40px;
  }
  .section-about .section-container .about-left .advantage-box {
    position: relative;
    bottom: 0px;
    left: 0;
    z-index: 1000;
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: start;
    -webkit-align-items: flex-start;
        -ms-flex-align: start;
            align-items: flex-start;
    background-color: transparent;
    width: 100%;
    -webkit-flex-wrap: wrap;
        -ms-flex-wrap: wrap;
            flex-wrap: wrap;
  }
  .section-about .section-container .about-left .advantage-box .box-item {
    width: 100%;
    -webkit-box-flex: 1;
    -webkit-flex: auto;
        -ms-flex: auto;
            flex: auto;
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -webkit-align-items: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
        -ms-flex-direction: column;
            flex-direction: column;
    -webkit-box-pack: center;
    -webkit-justify-content: center;
        -ms-flex-pack: center;
            justify-content: center;
    padding: 40px 0;
    margin: 10px 0;
    background-color: #fff;
  }
  .section-about .section-container .about-left .advantage-box .box-item .box-number span:nth-child(1) {
    font-weight: 800;
    font-size: 48px;
    color: #4661E6;
    line-height: 40px;
  }
  .section-about .section-container .about-left .advantage-box .box-item .box-number span:nth-child(2) {
    font-weight: 800;
    font-size: 48px;
    color: #4661E6;
    line-height: 40px;
  }
  .section-about .section-container .about-left .advantage-box .box-item .box-number span:last-child {
    font-weight: 400;
    font-size: 18px;
    color: #484848;
    margin-left: 10px;
  }
  .section-about .section-container .about-left .advantage-box .box-item .box-title {
    font-weight: 400;
    font-size: 18px;
    color: #484848;
    line-height: 40px;
  }
  .section-about .section-container .about-right {
    position: relative;
    width: 100%;
  }
  .section-about .section-container .about-right > img {
    width: 100%;
  }
  .section-about .section-container .about-right .play {
    position: absolute;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
        -ms-transform: translate(-50%, -50%);
            transform: translate(-50%, -50%);
    cursor: pointer;
  }
  .section-advantage {
    background: #0E121B;
    padding: 60px 15px;
  }
  .section-advantage .section-container .advantage-list {
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-flex-wrap: wrap;
        -ms-flex-wrap: wrap;
            flex-wrap: wrap;
  }
  .section-advantage .section-container .advantage-list .list-item {
    position: relative;
    width: 49%;
    margin-right: 2%;
    margin-bottom: 5%;
  }
  .section-advantage .section-container .advantage-list .list-item:nth-child(2n) {
    margin-right: 0;
  }
  .section-advantage .section-container .advantage-list .list-item > img {
    width: 100%;
  }
  .section-advantage .section-container .advantage-list .list-item .item-content {
    position: absolute;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
        -ms-transform: translate(-50%, -50%);
            transform: translate(-50%, -50%);
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
        -ms-flex-direction: column;
            flex-direction: column;
    -webkit-box-align: center;
    -webkit-align-items: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: center;
    -webkit-justify-content: center;
        -ms-flex-pack: center;
            justify-content: center;
    width: 100%;
    height: 100%;
    padding: 20px 10px;
    cursor: pointer;
  }
  .section-advantage .section-container .advantage-list .list-item .item-content:hover {
    background: #1C2431;
    -webkit-box-align: start;
    -webkit-align-items: flex-start;
        -ms-flex-align: start;
            align-items: flex-start;
    -webkit-box-pack: start;
    -webkit-justify-content: flex-start;
        -ms-flex-pack: start;
            justify-content: flex-start;
  }
  .section-advantage .section-container .advantage-list .list-item .item-content:hover .item-intro {
    display: block;
    opacity: 1;
  }
  .section-advantage .section-container .advantage-list .list-item .item-content:hover .item-title {
    text-align: left;
  }
  .section-advantage .section-container .advantage-list .list-item .item-content:hover .item-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 26px;
    -webkit-transform: translateX(-26px);
        -ms-transform: translateX(-26px);
            transform: translateX(-26px);
    width: 30px;
    border-bottom: 3px solid #4661E6;
  }
  .section-advantage .section-container .advantage-list .list-item .item-content .item-title {
    position: relative;
    font-weight: 500;
    font-size: 16px;
    color: #FFFFFF;
    text-align: center;
    margin-bottom: 20px;
  }
  .section-advantage .section-container .advantage-list .list-item .item-content .item-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    -webkit-transform: translateX(-50%);
        -ms-transform: translateX(-50%);
            transform: translateX(-50%);
    width: 30px;
    border-bottom: 3px solid #FFFFFF;
  }
  .section-advantage .section-container .advantage-list .list-item .item-content .item-intro {
    display: none;
    opacity: 0;
    font-weight: 500;
    font-size: 12px;
    color: #929292;
    line-height: 20px;
    -webkit-transition: all 1s;
            transition: all 1s;
  }
  .section-culture {
    padding: 60px 15px;
    min-height: 942px;
    background-size: cover;
    background-position: center;
  }
  .section-culture .section-container .culture-list {
    position: relative;
    margin-top: 50px;
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-flex-wrap: wrap;
        -ms-flex-wrap: wrap;
            flex-wrap: wrap;
  }
  .section-culture .section-container .culture-list::after {
    display: none;
  }
  .section-culture .section-container .culture-list .list-item {
    position: relative;
    width: 100%;
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -webkit-align-items: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
        -ms-flex-direction: column;
            flex-direction: column;
    padding: 30px 50px;
    z-index: 2;
  }
  .section-culture .section-container .culture-list .list-item .item-img {
    margin-bottom: 50px;
  }
  .section-culture .section-container .culture-list .list-item .item-img img {
    width: 106px;
    height: 106px;
  }
  .section-culture .section-container .culture-list .list-item .item-title {
    font-weight: 500;
    font-size: 20px;
    color: #FFFFFF;
    margin-bottom: 20px;
  }
  .section-culture .section-container .culture-list .list-item .item-intro {
    font-weight: 500;
    font-size: 18px;
    color: #C4C4C4;
    line-height: 40px;
  }
  .section-vision {
    position: relative;
    padding: 60px 15px;
    min-height: 500px;
    background-size: cover;
    background-color: #0E121B;
    background-position: center;
  }
  .section-vision .vision-box {
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    margin-top: 60px;
  }
  .section-vision .vision-box .vision-content {
    width: 100%;
    font-weight: 500;
    font-size: 18px;
    color: #D2D2D2;
    line-height: 40px;
  }
  .section-vision .vision-box .vision-img {
    position: absolute;
    right: 0;
    width: 50%;
    bottom: 0;
  }
  .section-vision .vision-box .vision-img img {
    width: 100%;
  }
}