.sutong-company_intro {
  padding: 50px 0;
  position: relative
}

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

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

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

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

.sutong-company_intro .container {
  display: flex;
  align-items: center
}

.sutong-company_intro .txt {
  flex: 1;
  margin-left: 50px
}

.sutong-company_intro .txt h3 {
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
  position: relative;
  z-index: 20
}

.sutong-company_intro .txt h3::before {
  display: block;
  content: attr(data-txt);
  white-space: nowrap;
  color: #fff;
  position: absolute;
  left: 0;
  top: -38px;
  font-size: 98px;
  line-height: 1;
  z-index: -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-company_intro .txt h3::after {
  display: block;
  content: '';
  width: 80px;
  height: 2px;
  background: var(--color-primary);
  margin: 10px auto 0 0
}

.sutong-company_intro .txt .t {
  margin: 40px 0 0;
  line-height: 36px;
  font-size: 17px;
}

.sutong-company_intro .txt .t p~p {
  margin-top: 35px
}

.sutong-company_intro .txt .t .steps {
  margin: 30px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.sutong-company_intro .txt .t .steps li {
  margin: 10px 0 0;
  width: 30%;
  color: var(--color-primary);
}

.sutong-company_intro .txt .more1 {
  margin: 50px 0 0
}

.sutong-company_intro .pic {
  width: 22.2%;
  position: relative
}

.sutong-company_intro .pic img {
  position: relative;
  z-index: 10
}

.sutong-company_intro .pic::after {
  position: absolute;
  /*content: '';*/
  top: 98px;
  right: -32px;
  bottom: 98px;
  width: 50px;
  z-index: 1;
  background: var(--color-primary);
  opacity: 0.3;
}

@media screen and (max-width: 1441px) {
  .sutong-company_intro .txt h3::before {
      font-size: 90px
  }

 .sutong-company_intro .txt h3 {
      font-size: 38px
  }

  .sutong-company_intro .more1 {
      padding: 0 35px
  }
}

@media screen and (max-width: 1367px) {

  .sutong-company_intro .txt h3::before{
      font-size: 80px
  }
  .sutong-company_intro .txt h3 {
      font-size: 36px
  }

  .sutong-company_intro .txt {
      margin-left: 110px
  }
}

@media screen and (max-width: 1281px) {

  .sutong-company_intro .txt h3::before {
      font-size: 70px
  }


 .sutong-company_intro .txt h3 {
      font-size: 34px
  }

  .sutong-company_intro .txt {
      margin-left: 90px
  }

  .sutong-company_intro .txt .t {
      margin: 30px 0 0;
      line-height: 32px
  }

  .sutong-company_intro .txt .t p~p {
      margin-top: 15px
  }

  .sutong-company_intro .txt .t ul {
      margin: 25px 0 0
  }
}

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

  .sutong-company_intro .txt h3::before {
      font-size: 60px
  }

  .sutong-company_intro .txt h3 {
      font-size: 32px
  }

  .sutong-company_intro .txt .t {
      margin: 25px 0 0;
      line-height: 28px;
      font-size: 16px
  }

  .sutong-company_intro .txt .more1 {
      margin: 30px 0 0
  }
}

@media screen and (max-width: 768px) {
  .sutong-company_intro .more1 {
      padding:0 30px;
      height: 50px
  }

  .sutong-company_intro .txt h3::before,.indexF .tit h4 {
      font-size: 50px
  }

  .sutong-company_intro .txt h3{
      font-size: 28px
  }

  .sutong-company_intro {
      padding: 30px 0
  }

  .sutong-company_intro .container {
      display: block
  }

  .sutong-company_intro .pic {
      width: 70%;
      margin: 0 auto
  }

  .sutong-company_intro .txt {
      margin: 40px 0 0;
      text-align: center
  }

  .sutong-company_intro .txt h3::before {
      top: -20px;
      right: 0
  }

  .sutong-company_intro .txt h3::after {
      margin: 15px auto 0
  }

  .sutong-company_intro .txt .t {
      line-height: 26px;
      text-align: left
  }

  .sutong-company_intro .txt .t p~p {
      margin-top: 10px
  }

}
@media screen and (max-width: 576px) {
  
 .sutong-company_intro .txt h3 {
      font-size: 26px
  }

  .sutong-company_intro .txt h3::before {
      font-size: 40px
  }

  .sutong-company_intro .pic {
      width: 100%
  }

  .sutong-company_intro .pic::after {
      display: none
  }

  .sutong-company_intro .txt .t ul {
      margin: 20px 0 0
  }

  .sutong-company_intro .txt .t ul li {
      width: 50%
  }
}

@media screen and (max-width: 480px) {
  .sutong-company_intro .txt h3 {
      font-size: 24px
  }

  .sutong-company_intro .txt h3::before {
      font-size: 30px
  }

  .sutong-company_intro .txt .t {
      line-height: 22px;
      background: 0 0;
      padding: 0;
      font-size: 15px
  }

  .sutong-company_intro .txt .bot {
      padding: 15px 0 0;
      margin: 15px 0 0
  }

  .sutong-company_intro .txt .bot p {
      font-size: 15px
  }

  .sutong-company_intro .txt .bot p em {
      font-size: 18px;
      margin: 5px 0 0
  }

  .sutong-company_intro .txt .bot a {
      width: 140px
  }
}