* {
  margin: 0;
  padding: 0
}
em,i {
  font-style: normal
}
li {
  list-style: none
}
img {
  border: 0;
  vertical-align: middle
}
button {
  cursor: pointer
}
a {
  color: #666;
  text-decoration: none
}
p,div,ul,ol,li,section {
  font-family: -apple-system, "Helvetica Neue", Helvetica, "Nimbus Sans L", Arial, "Liberation Sans", "PingFang SC", "Hiragino Sans GB", "Source Han Sans CN", "Source Han Sans SC", "Microsoft YaHei", "Wenquanyi Micro Hei", "WenQuanYi Zen Hei", "ST Heiti", SimHei, "WenQuanYi Zen Hei Sharp", sans-serif;
  font-size:14px;
}html {
  margin: 0;
  padding: 0;
}
body {
  margin: 0;
  padding: 0;
}
header {
  margin: 0;
  padding: 10px 0;
  width: 100%;
  background: #1f1a17;
  position: fixed;
  z-index: 999;
  transition: all 0.3s;
}
@media screen and (min-width: 750px) {
  .menu-left {
    float: left;
    width: 200px;
  }
  .menu-left img {
    width: 50%;
  }
  .menu-icon {
    display: none;
  }
  .menu-right {
    height: 30px;
    position: absolute;
    top: 50%;
    right: 10%;
    margin-top: -15px;
  }
  .menu-right .menu-item {
    padding: 0;
    margin: 0;
    color: white;
    text-align: center;
  }
  .menu-right .menu-item:hover {
    cursor: pointer;
  }
  .menu-right .menu-item li a {
    text-decoration: none;
    color: white;
    display: block;
  }
  .menu-right .menu-item:after {
    display: block;
    content: "";
    clear: both;
  }
  .menu-right .menu-item > li {
    line-height: 30px;
    float: left;
    margin-left: 10px;
    width: 100px;
    border-radius: 20px;
    transition: all 0.5s;
  }
  .menu-right .menu-item > li:hover {
    background: #0093dd;
  }
}
@media screen and (max-width: 750px) {
  .menu-left {
    float: left;
    width: 80px;
  }
  .menu-left img {
    width: 100%;
  }
  .menu-right {
    float: right;
    color: white;
    background: #1f1a17;
    position: relative;
    top: 50%;
    width: 80px;
    text-align: center;
    height: 24px;
  }
  .menu-right .menu-icon {
    line-height: 24px;
  }
  .menu-right .menu-icon svg {
    width: 24px;
    height: 24px;
    fill: white;
  }
  .menu-right .menu-item {
    display: none;
    width: 100%;
    text-align: center;
    margin: 0;
    padding: 0;
    position: absolute;
    z-index: 100;
    background: #1f1a17;
    opacity: 0.6;
    padding-top: 10px;
  }
  .menu-right .menu-item:hover {
    cursor: pointer;
  }
  .menu-right .menu-item li {
    padding: 5px 0;
    border-bottom: 1px solid #ccc;
  }
  .menu-right .menu-item li a {
    text-decoration: none;
    color: white;
  }
  .menu-right .menu-item li a:hover {
    text-decoration: none;
  }
  .menu-right .menu-item li:last-child {
    border-bottom: none;
  }
}
.top-none {
  height: 51px;
}
@media screen and (max-width: 750px) {
  .top-none {
    height: 44px;
  }
}
#foot .bg {
  width: 100%;
  background: url(/./img/footer.png) no-repeat center center;
  background-size: cover;
}
#foot .bg .contact {
  display: table-cell;
  vertical-align: middle;
  text-align: center;
  color: #ccc;
  padding-top: 20px;
  padding-bottom: 20px;
}
#foot .bg .contact h4 {
  font-size: 20px;
  font-weight: 500;
  color: white;
}
#foot .bg .contact .span {
  font-size: 14px;
}
#foot .bg .QR {
  display: table-cell;
  vertical-align: middle;
  text-align: center;
  padding-left: 100px;
}
#foot .bg .QR img {
  width: 160px;
}
@media screen and (max-width: 750px) {
  #foot .bg .contact {
    display: block;
  }
  #foot .bg .QR {
    display: block;
    padding-left: 0;
    padding-bottom: 20px;
  }
}
#construct {
  margin-top: 140px;
}
#construct .bg {
  background: url(/./img/baohan3.jpg) no-repeat center center;
  background-size: cover;
}
#construct .construct-title {
  padding-top: 54px;
  padding-bottom: 54px;
  text-align: center;
}
#construct .construct-title img {
  width: 120px;
}
#construct .construct-img {
  text-align: center;
  margin-bottom: 100px;
}
#construct .construct-img img {
  width: 100%;
}
#handle {
  margin-top: 80px;
}
#handle .handle-title {
  text-align: center;
  padding-bottom: 32px;
}
#handle .handle-title img {
  width: 220px;
}
#handle .handle-sub {
  text-align: center;
  color: #787878;
  margin-bottom: 86px;
}
#handle .handle-img img {
  width: 100%;
}
#supervise {
  margin-top: 100px;
}
#supervise .bg {
  background: url(/./img/baohan7.jpg) no-repeat center center;
  background-size: cover;
}
#supervise .bg .supervise-title {
  margin-top: 40px;
  margin-bottom: 80px;
  text-align: center;
}
#supervise .bg .supervise-title img {
  width: 140px;
}
#supervise .bg .supervise-img {
  margin-bottom: 80px;
}
#supervise .bg .supervise-img img {
  width: 100%;
}
#solution .solution-title {
  text-align: center;
  margin-top: 74px;
  margin-bottom: 40px;
}
#solution .solution-title img {
  width: 200px;
}
#solution .solution-main {
  margin: 0 auto;
}
#solution .solution-main li {
  padding: 20px 0;
  border-bottom: 1px dashed #787878;
  display: table;
}
#solution .solution-main li .solution-img {
  width: 15%;
  display: table-cell;
  vertical-align: middle;
}
#solution .solution-main li .solution-text {
  padding-left: 10px;
  width: 80%;
  display: table-cell;
  vertical-align: middle;
}
#solution .solution-main li .solution-text p {
  display: table;
}
#solution .solution-main li .solution-text p span {
  width: 100px;
  padding-right: 20px;
  display: table-cell;
  vertical-align: middle;
  font-size: 14px;
  font-weight: 600;
}
#solution .solution-main li .solution-text p i {
  display: table-cell;
  vertical-align: middle;
}
@media screen and (min-width: 750px) {
  .solution-main {
    width: 80%;
    margin: 0 auto;
  }
}

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