.banner-case {
  position: relative;
  overflow: hidden;
}
.banner-case .img-div {
  display: block;
  margin: 0 auto;
}
.banner-case .cont {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  padding-bottom: 90px;
  background-color: rgba(0, 0, 0, 0.33);
  color: #ffffff;
}
.banner-case .cont .cont-des {
  font-size: 20px;
  line-height: 1.4em;
}
.banner-case .cont .cont-title {
  font-size: 58px;
  line-height: 1.4em;
  letter-spacing: 1px;
}
@media (max-width: 1660px) {
  .banner-case .cont {
    padding-bottom: 80px;
  }
  .banner-case .cont .cont-des {
    font-size: 19px;
  }
  .banner-case .cont .cont-title {
    margin-top: 5px;
    font-size: 54px;
  }
}
@media (max-width: 1550px) {
  .banner-case .cont {
    padding-bottom: 70px;
  }
  .banner-case .cont .cont-des {
    font-size: 18px;
  }
  .banner-case .cont .cont-title {
    font-size: 50px;
  }
}
@media (max-width: 1400px) {
  .banner-case .cont {
    padding-bottom: 60px;
  }
  .banner-case .cont .cont-des {
    font-size: 16px;
  }
  .banner-case .cont .cont-title {
    font-size: 40px;
  }
}
@media (max-width: 1300px) {
  .banner-case .cont {
    padding-bottom: 50px;
  }
  .banner-case .cont .cont-title {
    font-size: 36px;
  }
}
.case-block {
  --ww: var(--wrap-1760-width);
  overflow: hidden;
}
.case-block .case-top {
  padding-top: 80px;
}
.case-block .case-top .cont-text {
  width: 49.43%;
}
.case-block .case-top .cont-title {
  font-size: 42px;
  font-weight: bold;
  line-height: 1.4em;
  color: #222222;
}
.case-block .case-top .cont-des {
  margin-top: 30px;
  margin-bottom: 30px;
  font-size: 20px;
  line-height: 1.65em;
  color: #777777;
}
.case-block .case-top .right-cont {
  width: 31.818%;
}
.case-block .case-top .right-cont .big-txt {
  margin-left: -0.07em;
  font-family: DIN-Bold;
  font-weight: bold;
  font-size: calc(var(--ww)*0.1755);
  line-height: 0.8em;
  letter-spacing: -0.05em;
  color: #777777;
  opacity: 0.17;
}
.case-block .select-list .line {
  margin: 0 55px;
  width: 1px;
  height: 16px;
  background-color: #dedede;
}
.case-block .index-case2 {
  padding-top: 90px;
  padding-bottom: 80px;
}
@media (max-width: 1660px) {
  .case-block .case-top {
    padding-top: 70px;
  }
  .case-block .case-top .cont-title {
    font-size: 38px;
  }
  .case-block .case-top .cont-des {
    margin-top: 20px;
    margin-bottom: 20px;
    font-size: 18px;
  }
  .case-block .select-list .line {
    margin: 0 50px;
  }
  .case-block .index-case2 {
    padding-top: 80px;
    padding-bottom: 70px;
  }
}
@media (max-width: 1550px) {
  .case-block .case-top {
    padding-top: 60px;
  }
  .case-block .case-top .cont-title {
    font-size: 34px;
  }
  .case-block .case-top .cont-des {
    margin-top: 15px;
    margin-bottom: 15px;
    font-size: 16px;
  }
  .case-block .select-list .line {
    margin: 0 45px;
  }
  .case-block .index-case2 {
    padding-top: 70px;
    padding-bottom: 60px;
  }
  .case-block .page-btn-box {
    padding-top: 40px;
  }
}
@media (max-width: 1400px) {
  .case-block .case-top {
    padding-top: 50px;
  }
  .case-block .case-top .cont-title {
    font-size: 32px;
  }
  .case-block .select-list .line {
    margin: 0 40px;
  }
  .case-block .index-case2 {
    padding-top: 50px;
    padding-bottom: 50px;
  }
  .case-block .page-btn-box {
    padding-top: 30px;
  }
}
@media (max-width: 1300px) {
  .case-block .case-top {
    padding-top: 45px;
  }
  .case-block .case-top .cont-title {
    font-size: 30px;
  }
  .case-block .index-case2 {
    padding-top: 45px;
  }
  .case-block .page-btn-box {
    padding-top: 25px;
  }
}
@media (max-width: 1200px) {
  .case-block .case-top {padding-top: 7%;}
  .case-block .case-top .right-cont {display:none;}
  .case-block .case-top .cont-text {width: 100%;}
  .case-block .case-top .cont-title {font-size: 26px;}
  .case-block .index-case2 {padding-top: 5%;}

}
@media (max-width: 960px) {
  .case-block .case-top .cont-title {font-size: 24px;}
  .case-block .case-top .cont-des {font-size: 15px;}
}
@media (max-width: 640px) {
  .case-block .case-top .cont-title {font-size: 22px;}
  .case-block .case-top .cont-des {font-size: 14px;}
}
.index-case2 {
  --w: var(--wrap-1760-width);
  position: relative;
  padding: calc(var(--w)*0.0714) 0 70px;
  color: #222222;
}
.index-case2 .auto-title-block {
  padding: 30px calc((var(--wrap-1760-width) - var(--wrap-1680-width))/2) 50px;
}
.index-case2 .list2 {
  --p: 26px;
  margin: calc(var(--p)*-1);
  margin: -26px;
}
.index-case2 .list2 .list2-li {
  padding: 26px;
}
.index-case2 .list2 .list2-box {
  display: block;
  overflow: hidden;
  background: transparent;
  transform: translateY(0);
  border-radius: 0px;
  transition: all 0.3s;
}
.index-case2 .list2 .list2-box:hover {
  transform: translateY(-15px);
  background: #ffffff;
  box-shadow: 0px 4px 29px 0px rgba(0, 0, 0, 0.11);
  border-radius: 10px;
}
.index-case2 .list2 .list2-box .video{width: 100%; height: 100.2%; object-fit:cover;position: absolute; top: 0;left: 0; z-index: 1;}
.index-case2 .list2 .img-box::before {
  padding-top: 63.58%;
}
.index-case2 .list2 .cont {
  padding: 27px 40px;
  transition: padding 0.3s;
}
.index-case2 .list2 .cont .list2-title {
  font-size: 28px;
  line-height: 1.4em;
  color: #222222;
}
.index-case2 .list2 .cont .list2-type {
  margin-top: 6px;
  font-size: 15px;
  line-height: 1.4em;
  color: #888888;
  overflow: hidden;
  white-space:nowrap;text-overflow:ellipsis;
}
@media (max-width: 1660px) {
  .index-case2 .auto-title-block {
    padding-bottom: 45px;
  }
  .index-case2 .list2 {
    --p: 24px;
    margin: -24px;
  }
  .index-case2 .list2 .list2-li {padding: 24px;}
  .index-case2 .list2 .list2-box:hover .cont {
    transform: translateY(-10px);
  }
  .index-case2 .list2 .cont {
    padding: 24px 35px;
  }
  .index-case2 .list2 .cont .list2-title {
    font-size: 26px;
  }
  .index-case2 .list2 .cont .list2-type {
    margin-top: 5px;
  }
}
@media (max-width: 1550px) {
  .index-case2 {
    padding-bottom: 50px;
  }
  .index-case2 .auto-title-block {
    padding-bottom: 40px;
  }
  .index-case2 .list2 {
    --p: 15px;
    margin: -15px;
  }
  .index-case2 .list2 .list2-li {padding: 15px;}
  .index-case2 .list2 .list2-box:hover .cont {
    transform: translateY(-5px);
  }
  .index-case2 .list2 .cont {
    padding: 22px 25px;
  }
  .index-case2 .list2 .cont .list2-title {
    font-size: 24px;
  }
  .index-case2 .list2 .cont .list2-type {
    font-size: 14px;
  }
}
@media (max-width: 1400px) {
  .index-case2 .list2 {
    --p: 13px;
    margin: -13px;
  }
  .index-case2 .list2 .list2-li {padding: 13px;}
  .index-case2 .list2 .list2-box:hover .cont {
    transform: translateY(-3px);
  }
  .index-case2 .list2 .cont {
    padding: 18px 20px;
  }
  .index-case2 .list2 .cont .list2-title {
    font-size: 22px;
  }
  .index-case2 .list2 .cont .list2-type {
    margin-top: 3px;
  }
}

@media (max-width: 1200px) {
  .index-case2 .list2 .cont .list2-title {font-size: 20px;}
  .index-case2 .list2 {margin: -10px;}
  .index-case2 .list2 .list2-li {padding: 10px;}
}
@media (max-width: 960px) {
  .index-case2 .list2 {margin: -8px;}
  .index-case2 .list2 .list2-li {width: 50%;padding: 8px;}
  .index-case2 .list2 .cont .list2-title {font-size: 18px}
  
  
}
@media (max-width: 640px) {
  .index-case2 .list2 .cont {padding: 18px 10px;}
}
@media (max-width: 480px) {
  .index-case2 .list2 {margin: -5px;}
  .index-case2 .list2 .list2-li {padding: 5px;}
  .index-case2 .list2 .cont .list2-title {font-size: 16px}
  .index-case2 .list2 .cont .list2-type {font-size: 13px;}
}