.certificate .h_tit h4 {
  margin-top: 50px;
  font-weight: 700;
  font-size: 1.625em;
  text-align: center;
}
.control-box {
    width: 1200px;
    /*height: 260px;
    background-image: url(../images/hots_bg.png);*/
    background-size: 1055px;
    background-repeat: no-repeat;
    background-position: 60px 165px;
    margin-left: auto;
    margin-right: auto;
	/*margin-top:50px;*/
}
.control-box img{ width:100%}
.control-box ul {
  list-style: none;
  position: relative;
}
.control-box ul li {
  position: absolute;
  top: 70px;
  cursor: pointer;
}
.control-box .hd {
  margin: 0 auto;
}
.control-box .hd .prev, .control-box .hd .next {
  width: 60px;
  height: 60px;
  cursor: pointer;
  background-position: -0px -237px;
  left: -65px;
  top: 50%;
  margin-top: 50px;
  position: absolute;
  opacity: .4;
  filter: alpha(opacity=40);
}
.control-box .hd .next {
  background-position: -60px -237px;
  right: -65px;
  left: auto;
}

.bigbox {
  overflow: hidden;
  width: 1168px;
  height: 190px;
  margin: auto 10px auto;
}
#switcher {
  height: 190px;
  left: 0px;
}
.content_1.content_2 {
  width: 100%;
  float: left;
}
.box {
  transition:all .7s ease 0s;
  width: 289px;
  height: 408px;
  float: left;
  margin-right: 5px;
}
.box:hover {
 opacity:0.5;
}
.box img {
	width:100%;
	height:auto;
	padding:0 10px;
}
.shadow {
  width: 289px;
  height: 60px;
  /* opacity: 1; */
  background-color: rgba(0, 0, 0, 0.45);
  filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#66000000,endColorstr=#66000000);
  margin-top: 130px;
  color: white;
  font-size: 14px;
}
.shadow a {
  display: inline-block;
  width: 237px;
  height: 60px;
  line-height:60px;
  color: white;
  text-decoration: none;
  margin-left: 18px;
}