h2 {
  font-size: 36px;
  color: #000;
  line-height: 36px;
  text-align: center;
}
.banner {
  position: relative;
}
.banner img {
  width: 100%;
}
.banner .advantage-wrapper {
  position: absolute;
  bottom: 0;
  width: 100%;
  background: rgba(2, 29, 66, 0.4);
}
.banner .advantage-wrapper .advantage-item {
  position: relative;
  height: 120px;
}
.banner .advantage-wrapper .advantage-item:nth-child(1) {
  border-left: 1px solid;
  border-image: linear-gradient(to bottom, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.6) 50%, rgba(255, 255, 255, 0.6) 50%, rgba(255, 255, 255, 0)) 1;
}
.banner .advantage-wrapper .advantage-item:nth-child(2) {
  border-left: 1px solid;
  border-right: 1px solid;
  border-image: linear-gradient(to bottom, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.6) 50%, rgba(255, 255, 255, 0.6) 50%, rgba(255, 255, 255, 0)) 1;
}
.banner .advantage-wrapper .advantage-item:nth-child(3) {
  border-right: 1px solid;
  border-image: linear-gradient(to bottom, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.6) 50%, rgba(255, 255, 255, 0.6) 50%, rgba(255, 255, 255, 0)) 1;
}
.banner .advantage-wrapper .advantage-item:hover img {
  transform: rotate(360deg);
  -ms-transform: rotate(360deg);
  -webkit-transform: rotate(360deg);
}
.banner .advantage-wrapper .advantage-item .content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 278px;
}
.banner .advantage-wrapper .advantage-item img {
  float: left;
  margin-top: 12px;
  width: 50px;
  height: 50px;
  transition: transform 1s;
}
.banner .advantage-wrapper p {
  float: left;
  margin-left: 28px;
  color: #fff;
  font-size: 18px;
  line-height: 36px;
  opacity: 0.7;
}
.about-us {
  padding: 100px 0 90px;
  text-align: center;
}
.about-us .overview {
  font-size: 16px;
  line-height: 32px;
  color: #333;
  margin-top: 50px;
}
.about-us .linian-wrapper {
  margin-top: 50px;
}
.about-us .linian-wrapper img {
  width: 58px;
}
.about-us .linian-wrapper p {
  font-size: 18px;
  line-height: 36px;
  color: #333;
}
.about-us .linian-wrapper .linian_line {
  width: 100%;
  height: 1px;
  background-image: linear-gradient(to right, rgba(31, 136, 255, 0), #1f87ff, rgba(31, 136, 255, 0));
  margin-top: 26px;
}
.service {
  background: #f5f7fa;
}
.service .container {
  padding-top: 80px;
  padding-bottom: 80px;
}
.service .container .service-wrapper {
  display: flex;
  justify-content: space-between;
}
.service .container .service-item {
  width: 30%;
  margin-top: 60px;
  background-color: #fff;
  text-align: center;
  box-shadow: 0 4px 16px rgba(102, 102, 102, 0.1);
  transition: transform 0.4s;
}
.service .container .service-item:hover {
  box-shadow: 0 6px 20px rgba(102, 102, 102, 0.3);
  -webkit-transform: translateY(-16px);
  transform: translateY(-16px);
}
.service .container .service-item div {
  position: relative;
}
.service .container .service-item div img {
  max-width: 100%;
}
.service .container .service-item div h3 {
  position: absolute;
  left: 50%;
  top: 45%;
  transform: translate(-50%, -50%);
  font-family: sans-serif, Arial, Helvetica;
  width: 100%;
  font-size: 30px;
  color: #fff;
  line-height: 30px;
}
.service .container .service-item div span {
  position: absolute;
  left: 50%;
  top: 65%;
  transform: translate(-50%, -50%);
}
.service .container .service-item p {
  padding: 30px 40px;
  text-align: justify;
  line-height: 28px;
  color: #666;
}
.service .container .service-item a {
  display: inline-block;
  color: #1f87ff;
  line-height: 14px;
  margin-bottom: 30px;
}
.case .container {
  padding-top: 80px;
  padding-bottom: 60px;
}
.case .container .case-content {
  margin-top: 80px;
}
.case .container .case-item {
  float: left;
  width: 10.33%;
  height: 240px;
  margin-left: -1px;
  text-align: center;
  border: 1px solid #e5e5e5;
}
.case .container .case-item .icon-normal {
  margin-top: 66px;
  width: 40px;
}
.case .container .case-item .line {
  width: 20px;
  height: 4px;
  border-radius: 2px;
  background-image: linear-gradient(to right, #3d42ff, #17ecff);
  margin: 10px auto 20px;
}
.case .container .case-item p {
  font-size: 16px;
  color: #333;
  line-height: 16px;
}
.case .container .case-item a {
  color: #1f87ff;
  line-height: 14px;
  display: inline-block;
  margin-top: 40px;
  display: none;
}
.case .container .case-active-item {
  height: 320px;
  width: 16.66%;
  transform: translateY(-40px);
  -webkit-transform: translateY(-40px);
  transition: transform 0.6s;
  -webkit-transition: transform 0.6s;
}
.case .container .case-active-item .icon-selected {
  width: 90px;
  height: 90px;
  background: #1f87ff;
  background-repeat: no-repeat;
  background-position: center;
  background-size: 40px;
  border-radius: 45px;
  margin: 66px auto 20px;
}
.case .container .case-active-item .icon-normal {
  display: none;
}
.case .container .case-active-item p {
  font-size: 20px;
  line-height: 20px;
}
.case .container .case-active-item a {
  display: block;
}
.customer {
  background: url(../pic/home/customer_bg.jpg) no-repeat center;
  background-size: cover;
}
.customer .container {
  padding-top: 80px;
  padding-bottom: 80px;
}
.customer .container .left-warapper {
  padding-right: 12px;
  padding-top: 80px;
}
.customer .container .right-warapper {
  padding-left: 12px;
  padding-top: 80px;
}
.customer .container img {
  max-width: 100%;
}
@media screen and (min-width: 768px) and (max-width: 991px) {
  .banner .advantage-wrapper .advantage-item .content {
    padding: 24px 0 24px 25px;
  }
  .banner .advantage-wrapper .advantage-item p {
    float: left;
    margin-left: 10px;
  }
  .service .container .service-item:nth-child(2) {
    margin: 60px 35px 0;
  }
}
@media screen and (min-width: 992px) and (max-width: 1024px) {
  .service .container .service-item:nth-child(2) {
    margin: 60px 48px 0;
  }
}
@media screen and (max-width: 767px) {
  .banner .advantage-wrapper .advantage-item {
    height: 100px;
  }
  .banner .advantage-wrapper .advantage-item p {
    float: left;
    margin-left: 20px;
  }
  .banner .advantage-wrapper .advantage-item:nth-child(1) {
    border-left: 0;
  }
  .banner .advantage-wrapper .advantage-item:nth-child(2) {
    border-left: 0;
    border-right: 0;
  }
  .banner .advantage-wrapper .advantage-item:nth-child(3) {
    border-right: 0;
  }
  .about-us {
    padding: 60px 0 60px;
  }
  .about-us .overview {
    padding: 0 15px;
    margin-top: 30px;
  }
  .about-us .linian-wrapper {
    margin-top: 20px;
  }
  .about-us .linian-wrapper img {
    margin-top: 20px;
  }
  .about-us .linian-wrapper p {
    font-size: 18px;
    line-height: 36px;
    color: #333;
    text-align: justify;
    text-align-last: center;
  }
  .service .container {
    padding-top: 60px;
  }
  .service .container .service-wrapper {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
  }
  .service .container .service-item {
    float: none;
    width: 90%;
    margin: 60px auto 0;
  }
  .service .container .service-item:hover {
    transform: translateY(0);
  }
  .case .container {
    padding-top: 60px;
  }
  .case .container .case-content {
    margin-top: 60px;
    padding: 0 15px;
  }
  .case .container .case-item {
    float: left;
    width: 33.33%;
    height: 240px;
    margin-left: -1px;
    margin-top: -1px;
    text-align: center;
    border: 1px solid #e5e5e5;
  }
  .case .container .case-item .icon-normal {
    margin-top: 66px;
    width: 40px;
  }
  .case .container .case-item .line {
    width: 20px;
    height: 4px;
    border-radius: 2px;
    background-image: linear-gradient(to right, #3d42ff, #17ecff);
    margin: 10px auto 20px;
  }
  .case .container .case-item p {
    font-size: 16px;
    color: #333;
    line-height: 16px;
  }
  .case .container .case-item a {
    color: #1f87ff;
    line-height: 14px;
    display: inline-block;
    margin-top: 40px;
  }
  .customer .container {
    padding-top: 60px;
    padding-bottom: 60px;
  }
  .customer .container .left-warapper {
    padding: 50px 15px 0;
  }
  .customer .container .right-warapper {
    padding: 14px 15px 0;
  }
}