.banner {
  position: relative;
  /* margin-top: 80px; */
  margin-top: 60px;
  height: auto;
  max-height: 540px;
  overflow: hidden;
}

.banner .ban-txt {
  position: absolute;
  left: 17%;
  top: 40%;
  transform: translateY(-50%);
  color: #fff
}

.banner .ban-txt a {
  color: #fff;
  font-size: 18px;
  text-shadow: 1px 1px 5px #333
}

.banner .ban-txt a span {
  margin: 0 3px 0 5px;
}

.banner .ban-txt dt {
  font-size: 56px;
  font-weight: bold;
  text-shadow: 1px 1px 15px #333;
  margin-bottom: 20px;

}

.nav_content {
  height: 70px;
  line-height: 70px;
  border-bottom: 1px solid #e5e5e5;
  font-size: 0
}

.nav_content a {
  display: inline-block;
  vertical-align: top;
  font-size: 18px;
  width: 170px;
  max-width: 18.5%;
  text-align: center;
  position: relative;
  z-index: 4;
  transition: all 0.3s
}

.nav_content a:hover {
  color: #B57DED
}

.nav_content a.active {
  color: #B57DED
}

.nav_content a:after {
  display: block;
  content: '';
  width: 0;
  height: 2px;
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  transition: all 0.3s;
  background: #B57DED
}

.nav_content a:hover:after {
  width: 100%
}

.nav_content a.active:after {
  width: 100%
}

dl.tit {
  text-align: center;
  margin-top: 3.8%;
  margin-bottom: 15px;
}

dl.tit dt {
 font-size: 30px; 
  
}

dl.tit dd {
  font-size: 18px;
  color: #999;
  margin-top: 8px;
}

dl.tit dd:after {
  content: '';
  width: 26px;
  height: 3px;
  background: #B57DED;
  display: block;
  margin: 0 auto;
  margin-top: 13px;
}
.banner>img {
    width: 100%;
}

 .imh1 {
    display: block;
  }

  .imh2 {
    display: none;
  }

@media screen and (max-width: 1280px){
	.head-mc {
   
    padding-top: 60px !important;
   
}
.banner .ban-txt dd {
    display: none;
}
	.head-mc {
    font-size: 20px;
}
	}



@media screen and (max-width: 750px){

	.nav_content a{        
	
	font-size: 16px;
	
	}
 .imh1 {
    display: none
  }

  .imh2 {
    display: block;
  }
.banner .ban-txt dt {
    font-size: 20px;margin-bottom: 0px;
}
}


@media screen and (max-width: 414px){
.nav_content a {
    font-size: 14px;
	display:inline-block;
	position:relative;
	width:56px;
}



.nav_content {
    height: 40px;
    line-height: 40px;
  }


}