.sutong-cases {
  padding: 65px 0;
  position: relative
}

.sutong-cases .more1 {
  padding: 0 40px;
  height: 64px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  border: 1px solid #dbe0e3;
  font-size: 15px;
  color: var(--title-text-color);
  font-weight: 700
}

.sutong-cases .more1 span {
  width: 13px;
  height: 12px;
  background: var(--color-primary);
  margin-right: 10px
}

.sutong-cases .more1 span:last-child {
  margin-right: 27px
}

.sutong-cases .more1:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff
}

.sutong-cases .more1:hover span {
  background: #fff
}

.sutong-cases .tit {
  text-align: center;
  height: 75px;
  overflow: hidden;
  border-bottom: 1px solid #eaedef
}

.sutong-cases .tit h4 {
  color: #fff;
  font-size: 98px;
  font-weight: 700;
  line-height: 1;
  text-shadow: rgba(210, 217, 221, .75) 1px 0 0, rgba(210, 217, 221, .75) 0 1px 0, rgba(210, 217, 221, .75) -1px 0 0, rgba(210, 217, 221, .75) 0 -1px 0
}

.sutong-cases .top{margin:65px 0 0;display:flex;justify-content: space-between;}

.sutong-cases .t {}

.sutong-cases .t h3 {
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
  position: relative;
  z-index: 20;
  text-transform:capitalize;
}

.sutong-cases .t h3::after {
  display: block;
  content: '';
  width: 80px;
  height: 2px;
  background: var(--color-primary);
  margin: 10px auto 0 0
}

.sutong-cases .t .more1 {
  margin: 34px 0 0
}

.sutong-cases .top .txt {width: 60%;
  font-size: 17px;
  line-height:30px;
}
.sutong-cases .top .txt p{line-height:inherit;}

.sutong-cases ul {
  margin: 75px -20px 0;
  display: flex;
  flex-wrap: wrap
}

.sutong-cases ul li {
  width: 33.3333%;
  padding: 15px 20px
}

.sutong-cases ul li>a {
  position: relative;
  overflow: hidden;
  display: block
}

.sutong-cases ul li img {
  display: block;
  width: 100%;
  aspect-ratio: 1.2 / 1;
  object-fit: cover;
}

.sutong-cases ul li .txt {
  position: absolute;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  z-index: 105;
  padding: 0 34px 29px;
  transition: opacity .2s, transform .35s;
  display: flex;
  justify-content: flex-end;
  -webkit-flex-direction: column;
  flex-direction: column;
  background: #13131359;
}

.sutong-cases ul li .txt::after {
  content: "";
  background: var(--color-primary);
  opacity: 0.85;
  height: 0;
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  transition: all .3s ease 0s
}

.sutong-cases ul li .txt>* {
  position: relative;
  z-index: 10
}

.sutong-cases ul li .txt h6 {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
  /*! text-shadow: -1px -1px 0 #000,    
     1px -1px 0 #000,  
    -1px  1px 0 #000,  
     1px  1px 0 #000; */
}

.sutong-cases ul li .txt p {
  font-size: 15px;
  color: #fff;
  line-height: 28px;
  height: 0;
  overflow: hidden;
  transition: all .5s ease 0s;
  margin: 15px 0 0
}

.sutong-cases ul li .txt .more {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: #fff;
  margin: 25px 0 0;
  /*! text-shadow: -1px -1px 0 #000,    
     1px -1px 0 #000,  
    -1px  1px 0 #000,  
     1px  1px 0 #000; */
}

.sutong-cases ul li .txt .more i {
  color: #fff;
  font-size: 12px;
  border-radius: 50%;
  width: 26px;
  height: 26px;
  border: 1px solid #fff;
  line-height: 24px;
  display: inline-block;
  text-align: center;
  margin-right: 20px
}

.sutong-cases ul li:hover .txt::after {
  height: 100%
}

.sutong-cases ul li:hover .txt p {
  height: 170px
}

.sutong-cases ul li:hover .more i {
  background: #fafbfb;
  color: var(--color-primary);
  border-color: #fafbfb
}


@media screen and (max-width: 1680px) {
.sutong-cases .tit h4{font-size:90px}
.sutong-cases .top .txt{line-height:28px;}
}

@media screen and (max-width: 1550px) {
.sutong-cases .tit h4{font-size:85px}
.sutong-cases .top .txt{line-height:27px;}
}

@media screen and (max-width: 1441px) {

.sutong-cases .tit h4{font-size:80px}
.sutong-cases .t h3{font-size: 38px}
.sutong-cases .top .txt{line-height:26px;}

  .sutong-cases .more1 {
    padding: 0 35px
  }
  
.sutong-cases ul li .txt p{line-height:27px;}
.sutong-cases ul li:hover .txt p{height:162px} 

}

@media screen and (max-width: 1367px) {
.sutong-cases .tit {height:60px;}
.sutong-cases .tit h4{font-size:70px}

  .sutong-cases .t h3 {
    font-size: 36px
  }
.sutong-cases .top .txt{line-height:25px;}

  .sutong-cases ul {
    margin: 50px -20px 0
  }

  .sutong-cases ul li .txt h6 {
    font-size: 19px
  }

.sutong-cases ul li .txt p{line-height:26px}
.sutong-cases ul li:hover .txt p{height:156px}
}

@media screen and (max-width: 1281px) {
.sutong-cases{padding:60px 0;}
.sutong-cases .tit {height:50px;}
.sutong-cases .tit h4{font-size:60px}

.sutong-cases .t h3{font-size:34px}

.sutong-cases .top .txt{font-size:16px;line-height:24px;}


  .sutong-cases ul {
    margin: 48px -15px 0
  }

  .sutong-cases ul li {
    padding: 12px 15px
  }

  .sutong-cases ul li .txt {
    padding: 0 25px 20px
  }



  .sutong-cases ul li .txt .more {
    margin: 20px 0 0
  }
.sutong-cases ul li .txt p{line-height:24px}  
.sutong-cases ul li:hover .txt p{height:144px}  
  
  
}

@media screen and (max-width: 1171px) {

.sutong-cases .t h3{font-size:32px}


  
}

@media screen and (max-width: 992px) {

.sutong-cases{padding:50px 0;}

.sutong-cases .t h3{font-size:30px}

.sutong-cases .top .txt{line-height:22px;}

  .sutong-cases ul {
    margin: 25px -15px 0
  }

  .sutong-cases ul li .txt {
    padding: 0 20px 18px
  }

.sutong-cases ul li .txt p{line-height:22px}  
.sutong-cases ul li:hover .txt p{height:88px}  

}

@media screen and (max-width: 768px) {

.sutong-cases{padding:40px 0 30px}
.sutong-cases .more1{padding:0 30px;height:50px}

.sutong-cases .tit{height:35px}
.sutong-cases .tit h4{font-size:40px;}


.sutong-cases .t h3{font-size: 28px}


.sutong-cases .top{margin: 30px 0 0;display: block;}
.sutong-cases .t{text-align:center;}
.sutong-cases .top .txt {margin:15px 0 0;width:100%;}

  


  .sutong-cases .t h3::after {
    margin: 15px auto 0
  }

  .sutong-cases .t .more1 {
    margin: 25px 0 0
  }


  .sutong-cases ul {
    margin: 20px -10px 0
  }

  .sutong-cases ul li {
    width: 50%;
    padding: 10px
  }

  .sutong-cases ul li .txt {
    padding: 0 15px 15px
  }

  .sutong-cases ul li .txt h6 {
    font-size: 18px
  }
  
.sutong-cases ul li .txt{top:auto;background:var(--color-primary);opacity:0.8;padding:10px 8px;} 
.sutong-cases ul li .txt::after {display:none;}  
.sutong-cases ul li .txt .more {display:none;}
.sutong-cases ul li .txt p{line-height:22px;height: 44px;margin:0;}
.sutong-cases ul li:hover .txt p{height:44px}  


}



@media screen and (max-width: 576px) {

.sutong-cases .t h3 {font-size:26px}
.sutong-cases .tit {height:25px}
.sutong-cases .tit h4{font-size:30px}

.sutong-cases .top .txt{font-size:15px;}

  .sutong-cases ul li .txt .more {
    display: none
  }

  .sutong-cases ul li .txt h6 {
    font-size: 17px
  }
}

@media screen and (max-width: 480px) {

  .sutong-cases .more1 {
    padding: 0 25px
  }

  .sutong-cases .t h3 {
    font-size: 24px
  }

  .sutong-cases .tit h4 {
    font-size: 30px
  }

  .sutong-cases .tit {
    height: 25px
  }

  .sutong-cases ul {
    margin: 14px 0 0
  }

  .sutong-cases ul li {
    width: 100%;
    padding: 6px 0
  }
}


@media screen and (max-width:480px){

  
}