.wraper {
  background: #1B1B1B;
}
.wraperWhite {
  background: #ffffff;
}

.wraper img {
  display: inline-block;
  border: 0;
  max-width: 100%;
}
.w1200 {
  width: 1200px;
  margin: 0 auto;
}
.header-wrap {
  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 9;
}
.header {
  height: 72px;
  background: none;
  /* background: #0022FF; */
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 0 auto;
}
.logo {
  width: 150px;
  height: auto;
  margin-left: 20px;
}
.menu {
  display: flex;
  align-items: center;
}
.menu a{
  padding: 0 20px;
  font-size: 14px;
  line-height: 72px;
  color: #fff;
  margin-left: 2px;
}
.menu a:hover,.menu a.cur {
  background: #000;
}
.banner {
  position: relative;
}
.banner .img-ban {
  width: 100%;
  height: auto;
}
.banner-cont {
  position: absolute;
  top: 35%;
  left: 50%;
  margin-left: -600px;
  z-index: 8;
  display: flex;
  flex-direction: column;
  align-items: baseline;
}
.banner-cont .img-text {
  width: 30%;
  height: auto;
  margin-bottom: 3%;
}
.banner-cont .btn-down {
  width: 100%;
  height: auto;
}
.function {
  padding: 19px 0 162px;
  background: #1B1B1B;
  text-align: center;
}
.function img {
  width: 923px;
  height: auto;
  margin: 0 auto;
}
.wrap-sf img {
  width: 100%;
  height: auto;
}
.about-wrap {
  background: #1B1B1B;
  padding: 80px 0;
}
.about-us {
  display: flex;
  flex-direction: row;
}
.about-us li {
  width: 290px;
  font-size: 14px;
  line-height: 20px;
  color: #fff;
}
.about-us li h3{
  font-size: 20px;
  font-weight: 600;
  color: #fff;
  padding-bottom: 10px;
}
.footer {
  background: #000;
  padding: 52px;
  font-size: 14px;
  color: #fff;
}
.footer a {
  color: #FFEB53;
  margin-right: 10px;
  display: inline;
  text-decoration: underline;
}
.footer a.a-ba{
  color: #fff;
  margin-left: 10px;
}


@media screen and (min-width: 320px) and (max-width: 980px){
  .w1200 {
    width: 100%;
    padding: 20px;
  }
  .banner-cont {
    top: 20%;
    margin-left: -50%;
  }
  .banner-cont .img-text {
    width: 30%;
    height: auto;
    margin-bottom: 3%;
  }
  .banner-cont .btn-down {
    width: 60%;
    height: auto;
  }
  
}