.zt-magg {
  margin-top: 70px;
  margin-bottom: 70px;
}

.zt-bantxtbox {
  position: relative;
  margin-top: -140px;
  z-index: 2;
}
.zt-bantxtbox::before {
  content: "";
  display: block;
  width: 50%;
  position: absolute;
  right: 0;
  height: 100%;
  background: #BD1C21;
  top: 0;
  z-index: -1;
}

.zt-bantxt {
  background: #BD1C21;
  padding: 45px 80px 20px;
}
.zt-bantxt p {
  font-size: 16px;
  color: #FFF;
  margin-bottom: 1.5em;
}

.zt-wktop {
  position: relative;
  box-sizing: border-box;
  padding: 55px 0 70px 80px;
}
.zt-wktop > img {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;
  left: 0;
  top: 0;
}
.zt-wktop::before {
  content: "";
  display: block;
  z-index: 2;
  position: absolute;
  right: 0;
  top: 0;
  height: 100%;
  background: rgba(5, 21, 51, 0.9);
  width: 51.1%;
}

.zt-wktoptxt {
  position: relative;
  z-index: 3;
  background: #FFF;
  box-sizing: border-box;
  width: 84%;
  padding: 50px 95px;
}
.zt-wktoptxt h2 {
  font-size: 30px;
  font-weight: bold;
  padding-bottom: 22px;
  margin-bottom: 30px;
  position: relative;
}
.zt-wktoptxt h2::before {
  content: "";
  display: block;
  width: 180px;
  height: 3px;
  background: #BD1C21;
  position: absolute;
  left: 0;
  bottom: 0;
}

.zt-hytdbox {
  background: url(/static/dynamic/tailings-treatment/images/wkkpic2.jpg) no-repeat;
  background-size: cover;
  padding: 55px 0 30px;
}
.zt-hytdbox .txt {
  width: 69.6%;
}
.zt-hytdbox .txt b {
  font-size: 18px;
}
.zt-hytdbox .txt p {
  color: #FFF;
  margin-bottom: 1.5em;
}
.zt-hytdbox .tit {
  padding-left: 32px;
  z-index: 1;
  padding-top: 35px;
  position: relative;
}
.zt-hytdbox .tit::before {
  content: "";
  width: 208px;
  height: 64px;
  display: block;
  position: absolute;
  left: 0;
  box-sizing: border-box;
  top: 0;
  z-index: -1;
  border: 2px solid #FFFFFF;
}
.zt-hytdbox .tit h2 {
  height: 57px;
  font-size: 36px;
  font-weight: bold;
  color: #FFF;
  background: #BD1C21;
  padding: 0 20px;
}
.zt-hytdbox .tit h2 img {
  width: 21px;
  display: inline-block;
  vertical-align: middle;
  margin-left: 15px;
}

.zt-titbox {
  text-align: center;
  margin-bottom: 45px;
}
.zt-titbox h2 {
  text-align: center;
  font-weight: bold;
  font-size: 36px;
  line-height: 1.2em;
  display: inline-block;
  z-index: 1;
  position: relative;
}
.zt-titbox h2:after {
  content: "";
  display: block;
  position: absolute;
  width: 100%;
  height: 9px;
  background: #BD1C21;
  bottom: 0;
  z-index: -1;
  left: 0;
}

.zt-wknav {
  font-size: 0;
  text-align: center;
  margin: 40px 0;
}
.zt-wknav a {
  display: inline-block;
  font-size: 24px;
  font-weight: bold;
  color: #FFF;
  background: #BD1C21;
  height: 42px;
  line-height: 42px;
  min-width: 218px;
  text-align: center;
  margin: 0 16px;
}
.zt-wknav a:hover {
  opacity: 0.9;
}

.zt-titbox2 {
  margin-bottom: 50px;
}
.zt-titbox2 h2 {
  display: inline-block;
  border-bottom: 2px solid #BD1C21;
  font-size: 24px;
  font-weight: bold;
  padding-right: 8px;
  line-height: 42px;
  padding-left: 80px;
  position: relative;
}
.zt-titbox2 h2 span {
  position: absolute;
  left: 0;
  bottom: 0;
  font-size: 31px;
  color: #FFF;
  font-weight: bold;
  line-height: 42px;
  padding: 0 10px;
  background: #BD1C21;
}

.zt-titbox3 {
  text-align: center;
  margin-bottom: 35px;
}
.zt-titbox3 h3 {
  font-size: 20px;
  color: #BD1C21;
  font-weight: bold;
  display: inline-block;
  position: relative;
}
.zt-titbox3 h3::before {
  content: "";
  display: block;
  position: absolute;
  width: 50px;
  height: 3px;
  background: #BD1C21;
  left: -76px;
  top: 50%;
  margin-top: -1px;
}
.zt-titbox3 h3::after {
  content: "";
  display: block;
  position: absolute;
  width: 50px;
  height: 3px;
  background: #BD1C21;
  right: -76px;
  top: 50%;
  margin-top: -1px;
}

.zt-wkktxt p {
  margin-top: 1.5em;
}

.zt-titbox4 {
  margin-top: 50px;
  margin-bottom: 50px;
}
.zt-titbox4 h4 {
  font-size: 24px;
  color: #FFF;
  font-weight: bold;
  background: #BD1C21;
  display: inline-block;
  height: 38px;
  line-height: 38px;
  padding-left: 25px;
  padding-right: 25px;
  position: relative;
}
.zt-titbox4 h4::before {
  content: "";
  display: block;
  position: absolute;
  background: url(/static/dynamic/tailings-treatment/images/zttitbg.png) no-repeat;
  background-size: 100% 100%;
  width: 17px;
  right: -17px;
  top: 0;
  height: 100%;
}

.zt-wkzxbox .pic {
  width: 41%;
}
.zt-wkzxbox .pic img {
  margin-bottom: 20px;
}
.zt-wkzxbox .txt {
  width: 51%;
  margin-top: -55px;
}
.zt-wkzxbox .txt h4 {
  font-size: 18px;
  font-weight: bold;
  position: relative;
  margin-bottom: 20px;
  margin-top: 40px;
  padding-left: 20px;
}
.zt-wkzxbox .txt h4::before {
  content: "";
  display: block;
  position: absolute;
  width: 8px;
  height: 19px;
  background: #BD1C21;
  left: 0;
  top: 50%;
  margin-top: -10px;
}
.zt-wkzxbox .txt p {
  margin-top: 1.5em;
  padding-left: 20px;
  line-height: 1.6em;
}

.zt-wkzxbox2 {
  flex-direction: row-reverse;
  align-items: flex-end;
  margin-top: 55px;
}
.zt-wkzxbox2 .txt {
  margin-top: 0;
  width: 41%;
  padding-bottom: 40px;
}
.zt-wkzxbox2 .pic {
  width: 51%;
  margin-top: 0;
}

.zt-wkct {
  padding: 60px;
  box-sizing: border-box;
  background: url(/static/dynamic/tailings-treatment/images/wkkpic8.jpg) no-repeat;
  background-size: cover;
  position: relative;
}
.zt-wkct .txt {
  width: 47%;
}
.zt-wkct .txt h4 {
  color: #FFF;
  font-weight: bold;
  margin-bottom: 20px;
  font-size: 18px;
  padding-left: 20px;
  position: relative;
}
.zt-wkct .txt h4::before {
  content: "";
  width: 8px;
  height: 19px;
  background: #FFFFFF;
  position: absolute;
  left: 0;
  top: 50%;
  margin-top: -10px;
  display: block;
}
.zt-wkct .txt p {
  padding-left: 20px;
  color: #FFF;
}
.zt-wkct .pic {
  position: absolute;
  width: 42.5%;
  background: #FFF;
  box-sizing: border-box;
  padding: 10px;
  right: 45px;
  bottom: 40px;
}

.zt-wkzxcase {
  background: url(/static/dynamic/tailings-treatment/images/wkkpic9.jpg) no-repeat center top;
  background-size: 100% auto;
  padding-top: 92px;
  margin-top: 50px;
}

.zt-wkzxcasecon {
  background: #FFF;
  box-sizing: content-box;
  padding: 50px 100px 0;
}
.zt-wkzxcasecon h5 {
  font-size: 18px;
  font-weight: bold;
}

.zt-wkzxcaselist {
  margin-top: 40px;
}
.zt-wkzxcaselist li::before {
  content: "";
  width: 8px;
  height: 8px;
  background: #BD1C21;
  border-radius: 50%;
  display: inline-block;
  margin-right: 15px;
  vertical-align: middle;
}

.zt-wkzxcase-item .pic {
  width: 46%;
}
.zt-wkzxcase-item .txt {
  width: 47.8%;
}
.zt-wkzxcase-item .txt h4 {
  font-size: 18px;
  font-weight: bold;
  position: relative;
  margin-bottom: 20px;
  padding-left: 20px;
}
.zt-wkzxcase-item .txt h4::before {
  content: "";
  display: block;
  position: absolute;
  width: 8px;
  height: 19px;
  background: #BD1C21;
  left: 0;
  top: 50%;
  margin-top: -10px;
}
.zt-wkzxcase-item .txt p {
  margin-top: 1.5em;
  padding-left: 20px;
  line-height: 1.6em;
}

.zt-wkzxcase-other {
  padding: 10px 0 60px;
  background: #F1F6FA;
}
.zt-wkzxcase-other ul {
  position: relative;
}
.zt-wkzxcase-other ul::before {
  content: "";
  display: block;
  width: 1px;
  background: rgba(189, 28, 33, 0.25);
  bottom: 0;
  left: 50%;
  position: absolute;
  top: 40px;
}
.zt-wkzxcase-other li {
  width: 43.8%;
  margin-top: 40px;
}
.zt-wkzxcase-other li h4 {
  font-size: 18px;
  font-weight: bold;
  position: relative;
  margin-bottom: 20px;
  padding-left: 20px;
}
.zt-wkzxcase-other li h4::before {
  content: "";
  display: block;
  position: absolute;
  width: 8px;
  height: 19px;
  background: #BD1C21;
  left: 0;
  top: 50%;
  margin-top: -10px;
}
.zt-wkzxcase-other li p {
  padding-left: 20px;
  line-height: 1.6em;
}

.zt-xhcase {
  background: url(/static/dynamic/tailings-treatment/images/wkkpic11.jpg) no-repeat;
  background-size: 100% 100%;
  padding: 65px 74px 34px 58px;
  position: relative;
  align-items: flex-start;
  z-index: 1;
}
.zt-xhcase::before {
  content: "";
  display: block;
  width: 74.5%;
  position: absolute;
  left: 0;
  top: 0;
  background: rgba(5, 21, 51, 0.9);
  z-index: 2;
  height: 100%;
}
.zt-xhcase .txt {
  position: relative;
  z-index: 3;
  width: 63.9%;
}
.zt-xhcase .txt li {
  margin-bottom: 40px;
}
.zt-xhcase .txt h4 {
  font-size: 18px;
  color: #FFF;
  font-weight: bold;
  position: relative;
  margin-top: 20px;
  margin-bottom: 20px;
  padding-left: 20px;
}
.zt-xhcase .txt h4::before {
  content: "";
  display: block;
  position: absolute;
  width: 8px;
  height: 19px;
  background: #FFF;
  left: 0;
  top: 50%;
  margin-top: -10px;
}
.zt-xhcase .txt p {
  color: #FFF;
  padding-left: 20px;
  line-height: 1.7em;
}
.zt-xhcase .pic {
  width: 29.2%;
  position: relative;
  z-index: 3;
}

.zt-xhcase2 {
  margin-top: 60px;
  margin-bottom: 50px;
}
.zt-xhcase2 .pic {
  width: 45.75%;
}
.zt-xhcase2 .txt {
  width: 48.75%;
  margin-top: -40px;
}
.zt-xhcase2 .txt li {
  margin-top: 40px;
}
.zt-xhcase2 .txt h4 {
  font-size: 18px;
  font-weight: bold;
  position: relative;
  margin-top: 20px;
  margin-bottom: 20px;
  padding-left: 20px;
}
.zt-xhcase2 .txt h4::before {
  content: "";
  display: block;
  position: absolute;
  width: 8px;
  height: 19px;
  background: #BD1C21;
  left: 0;
  top: 50%;
  margin-top: -10px;
}
.zt-xhcase2 .txt p {
  padding-left: 20px;
  line-height: 1.7em;
}

@media (max-width: 1500px) {
  .zt-wktoptxt h2 {
    font-size: 26px;
  }
  .zt-hytdbox .tit h2 {
    font-size: 30px;
    line-height: 57px;
  }
  .zt-titbox h2 {
    font-size: 32px;
  }
  .zt-wkzxcasecon {
    padding-left: 60px;
    padding-right: 60px;
  }
}
@media (max-width: 1300px) {
  .zt-bantxt {
    padding: 30px 50px 10px;
  }
  .zt-wktoptxt {
    padding: 40px 50px;
  }
  .zt-wkct {
    padding: 40px;
  }
  .zt-bantxtbox {
    margin-top: -100px;
  }
}
@media (max-width: 1000px) {
  .zt-magg {
    margin-top: 40px;
    margin-bottom: 40px;
  }
  .zt-bantxtbox::before {
    display: none;
  }
  .zt-bantxtbox {
    margin-top: 30px;
  }
  .zt-bantxt {
    padding: 20px;
  }
  .zt-wktop {
    padding: 0;
  }
  .zt-wktop > img {
    position: static;
  }
  .zt-wktop::before {
    display: none;
  }
  .zt-wktoptxt {
    width: 100%;
    padding: 20px 0;
  }
  .zt-wktoptxt h2 {
    font-size: 18px;
    margin-bottom: 20px;
    padding-bottom: 10px;
  }
  .zt-wktoptxt h2::before {
    width: 100px;
    height: 2px;
  }
  .zt-hytdbox {
    padding: 40px 0;
  }
  .zt-hytdbox .tit {
    width: 100%;
    margin-bottom: 30px;
    padding-top: 20px;
    padding-left: 20px;
  }
  .zt-hytdbox .tit::before {
    width: 100px;
    height: 45px;
  }
  .zt-hytdbox .tit h2 {
    font-size: 20px;
    display: inline-block;
    height: 45px;
    line-height: 45px;
  }
  .zt-hytdbox .tit h2 img {
    width: 15px;
  }
  .zt-hytdbox .txt {
    width: 100%;
  }
  .zt-titbox {
    margin-bottom: 30px;
  }
  .zt-titbox h2 {
    font-size: 24px;
  }
  .zt-titbox h2::after {
    height: 5px;
  }
  .zt-wknav {
    margin: 20px 0 40px;
  }
  .zt-wknav a {
    width: 48%;
    display: block;
    font-size: 18px;
    margin: 5px auto;
    min-width: initial;
  }
  .zt-titbox2 {
    margin-bottom: 30px;
  }
  .zt-titbox2 h2 {
    font-size: 18px;
    padding-left: 55px;
    line-height: 1.5em;
    padding-bottom: 7px;
  }
  .zt-titbox2 h2 span {
    font-size: 16px;
    line-height: 35px;
  }
  .zt-titbox3 {
    margin-bottom: 20px;
  }
  .zt-titbox3 h3 {
    font-size: 16px;
  }
  .zt-titbox3 h3::before {
    display: none;
  }
  .zt-titbox3 h3::after {
    display: none;
  }
  .zt-titbox4 {
    margin-top: 40px;
    margin-bottom: 30px;
  }
  .zt-titbox4 h4 {
    font-size: 18px;
    padding-left: 10px;
    padding-right: 10px;
  }
  .zt-wkzxbox .pic {
    width: 100%;
  }
  .zt-wkzxbox .txt {
    width: 100%;
    margin-top: -10px;
  }
  .zt-wkzxbox .txt h4 {
    font-size: 16px;
    margin-top: 30px;
    margin-bottom: 10px;
  }
  .zt-wkzxbox .txt h4::before {
    width: 5px;
  }
  .zt-wkzxbox2 {
    margin-top: 30px;
  }
  .zt-wkzxbox2 .txt {
    padding-bottom: 0;
  }
  .zt-wkct {
    padding: 15px;
  }
  .zt-wkct .pic {
    width: 100%;
    position: static;
  }
  .zt-wkct .txt {
    width: 100%;
    margin-top: 30px;
  }
  .zt-wkct .txt h4 {
    font-size: 16px;
    margin-top: 30px;
    margin-bottom: 10px;
  }
  .zt-wkct .txt h4::before {
    width: 5px;
  }
  .zt-wkzxcase {
    margin-top: 30px;
    padding-top: 0px;
    background: none;
  }
  .zt-wkzxcasecon {
    padding: 0;
  }
  .zt-wkzxcaselist {
    margin-top: 20px;
  }
  .zt-wkzxcase-item .pic {
    width: 100%;
  }
  .zt-wkzxcase-item .txt {
    width: 100%;
    margin-top: 0px;
  }
  .zt-wkzxcase-item .txt h4 {
    font-size: 16px;
    margin-top: 30px;
    margin-bottom: 10px;
  }
  .zt-wkzxcase-item .txt h4::before {
    width: 5px;
  }
  .zt-wkzxcase-other ul::before {
    display: none;
  }
  .zt-wkzxcase-other li {
    margin-top: 30px;
    width: 100%;
  }
  .zt-wkzxcase-other li h4 {
    font-size: 16px;
    margin-bottom: 10px;
  }
  .zt-wkzxcase-other li h4::before {
    width: 5px;
  }
  .zt-xhcase {
    padding: 20px;
  }
  .zt-xhcase::before {
    width: 100%;
  }
  .zt-xhcase .txt {
    width: 100%;
  }
  .zt-xhcase .txt h4 {
    font-size: 16px;
    margin-bottom: 10px;
  }
  .zt-xhcase .txt h4::before {
    width: 5px;
  }
  .zt-xhcase .txt li {
    margin-bottom: 30px;
  }
  .zt-xhcase .pic {
    width: 80%;
    margin: 0 auto;
  }
  .zt-xhcase2 {
    margin-top: 40px;
    margin-bottom: 30px;
  }
  .zt-xhcase2 .pic {
    width: 100%;
  }
  .zt-xhcase2 .txt {
    width: 100%;
    margin-top: 0px;
  }
  .zt-xhcase2 .txt h4 {
    font-size: 16px;
    margin-bottom: 10px;
  }
  .zt-xhcase2 .txt h4::before {
    width: 5px;
  }
}<!--0.00010108947753906-->