@media all and (max-width: 1880px) {
  .w1800 {
    width: 94%;
  }
}
@media all and (max-width: 1680px) {
  .w1600 {
    width: 94%;
  }
}
@media all and (max-width: 1480px) {
  .w1400 {
    width: 94%;
  }
  header .head-nav ul li {
    margin: 0 12px !important;
  }
  .client-list ul li .item .img {
    height: 170px;
  }
  .detail-position .left h2 {
    width: 220px;
  }
  .about-page .section2 ul li .item {
    padding: 0 4%;
  }
  .calculator .calculator-content .calculator-select button {
    height: 60px;
  }
}
@media all and (max-width: 1400px) {
  .client-list ul li .item .img {
    height: 160px;
  }
}
@media all and (max-width: 1280px) {
  .w1200 {
    width: 94%;
  }
  .client-list ul li .item .img {
    height: 140px;
  }
}
@media all and (max-width: 1200px) {
  #container {
    width: 1200px;
  }
  header {
    width: 1200px;
  }
}
@media all and (max-width: 992px) {
  .w1200 {
    width: 900px;
  }
}