.zt-padd {
  padding-top: 70px;
  padding-bottom: 70px;
}

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

.zt-content p {
  line-height: 1.7em;
}

.zt-banner {
  position: relative;
}

.zt-bantxt {
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  box-sizing: border-box;
  padding-top: 70px;
  padding-bottom: 80px;
}
.zt-bantxt h1 {
  font-size: 43px;
  color: #FFF;
  text-transform: uppercase;
  margin-left: -36px;
}
.zt-bantxt h1 span {
  display: inline-block;
  background: #D32121;
  margin-bottom: 8px;
  padding: 2px 30px;
}

.banpic {
  width: 77.4%;
  margin: 70px auto 0;
}
.banpic img {
  width: 23.4%;
  border: 2px solid #FFFFFF;
}

.zt-engineertop {
  position: relative;
  margin-bottom: 0;
}
.zt-engineertop .txt {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  left: 85px;
  background: rgba(255, 255, 255, 0.98);
  width: 60.5%;
  box-sizing: border-box;
  padding: 40px 60px;
}

.ztcase-list li {
  width: 100%;
}
.ztcase-list li:nth-child(2n) {
  background: #F6F8FB;
}
.ztcase-list li:nth-child(2n) .wap-flex {
  flex-direction: row-reverse;
}
.ztcase-list li:nth-child(2n) .pic span {
  right: 0;
  left: -36px;
}
.ztcase-list li .pic {
  width: 37.58%;
  position: relative;
}
.ztcase-list li .pic span {
  display: block;
  position: absolute;
  font-size: 30px;
  font-weight: bold;
  background: #D32121;
  width: 73px;
  text-align: center;
  color: #FFF;
  top: 23px;
  right: -36px;
  padding: 2px 0;
}
.ztcase-list li .txt {
  width: 51%;
}
.ztcase-list li .txt h4 {
  font-weight: bold;
  font-size: 24px;
}
.ztcase-list li .txt p {
  margin-top: 1.5em;
}
.ztcase-list li .txt p a:hover {
  color: #D32121;
  text-decoration: underline;
}

.ztcasepic-list {
  background: #F6F8FB;
  padding-bottom: 1px;
}
.ztcasepic-list ul {
  align-items: initial;
}
.ztcasepic-list li {
  width: 30.8%;
  margin-bottom: 70px;
}
.ztcasepic-list li h4 {
  margin-top: 20px;
  text-align: center;
}
.ztcasepic-list li .pic {
  padding-top: 19px;
  position: relative;
}
.ztcasepic-list li .pic span {
  display: block;
  position: absolute;
  font-size: 30px;
  font-weight: bold;
  background: #D32121;
  width: 73px;
  text-align: center;
  color: #FFF;
  top: 0;
  left: 20px;
  padding: 2px 0;
}

.zt-bottxt {
  padding: 60px 0;
}
.zt-bottxt p a {
  font-weight: bold;
}
.zt-bottxt p a:hover {
  color: #D32121;
}

@media (max-width: 1700px) {
  .banpic {
    margin-top: 50px;
  }
}
@media (max-width: 1600px) {
  .zt-padd {
    padding-top: 60px;
    padding-bottom: 60px;
  }
  .zt-magg {
    margin-top: 60px;
    margin-bottom: 60px;
  }
  .ztcasepic-list {
    padding-bottom: 0;
  }
  .zt-bantxt h1 {
    font-size: 36px;
    margin-left: -20px;
  }
}
@media (max-width: 1500px) {
  .zt-bantxt h1 {
    font-size: 30px;
    margin-left: 0px;
  }
  .banpic {
    width: 86%;
    margin-top: 35px;
  }
}
@media (max-width: 1400px) {
  .zt-bantxt h1 {
    font-size: 26px;
  }
  .banpic {
    width: 90%;
    margin-top: 30px;
  }
}
@media (max-width: 1000px) {
  .content, body {
    width: 100%;
  }
  .zt-content, .zt-contentbig {
    width: 100%;
    padding: 0 0.64rem;
    box-sizing: border-box;
  }
  .zt-padd {
    padding-top: 50px;
    padding-bottom: 50px;
  }
  .zt-magg {
    margin-top: 50px;
    margin-bottom: 50px;
  }
  .zt-bantxt {
    padding-top: 30px;
    padding-bottom: 30px;
  }
  .zt-bantxt h1 {
    font-size: 16px;
    margin-left: 0;
  }
  .zt-bantxt h1 span {
    display: inline-block;
    background: #D32121;
    margin-bottom: 8px;
    padding: 2px 10px;
  }
  .banpic {
    width: 98%;
    margin: 15px auto 0;
  }
  .banpic img {
    width: 22%;
    border: 1px solid #FFFFFF;
  }
  .zt-engineertop {
    margin-bottom: 0;
    position: relative;
  }
  .zt-engineertop .txt {
    position: static;
    transform: none;
    background: rgba(255, 255, 255, 0.98);
    width: 100%;
    box-sizing: border-box;
    padding: 0px;
    margin-bottom: 30px;
  }
  .ztcase-list li:nth-child(2n) .pic span {
    right: auto;
    left: 0;
  }
  .ztcase-list li .pic {
    width: 100%;
    position: relative;
  }
  .ztcase-list li .pic span {
    font-size: 22px;
    width: 52px;
    top: -15px;
    right: auto;
    left: 0;
    padding: 2px 0;
  }
  .ztcase-list li .txt {
    width: 100%;
    margin-top: 30px;
  }
  .ztcase-list li .txt h4 {
    font-weight: bold;
    font-size: 18px;
  }
  .ztcase-list li .txt p {
    margin-top: 1em;
  }
  .ztcase-list li .txt p a:hover {
    color: #D32121;
    text-decoration: underline;
  }
  .ztcasepic-list {
    padding-bottom: 1px;
  }
  .ztcasepic-list li {
    width: 48%;
    margin-bottom: 30px;
  }
  .ztcasepic-list li h4 {
    margin-top: 10px;
    font-size: 15px;
  }
  .ztcasepic-list li .pic {
    padding-top: 15px;
    position: relative;
  }
  .ztcasepic-list li .pic span {
    font-size: 18px;
    width: 50px;
    top: 0;
    right: auto;
    left: 0;
    padding: 0;
  }
  .zt-bottxt {
    padding: 40px 0;
  }
  .zt-bottxt p a {
    font-weight: bold;
  }
  .zt-bottxt p a:hover {
    color: #D32121;
  }
}
@media (max-width: 560px) {
  .zt-banner {
    height: 230px;
    position: relative;
    overflow: hidden;
  }
  .zt-banner > img {
    position: absolute;
    width: auto;
    left: 50%;
    transform: translateX(-50%);
    height: 100%;
    max-width: none;
  }
}