header nav {
 
}
header .btns {
  display: none;
}
.pic-list > ul {
  font-size: 0px;
}
.pic-list > ul li {
  display: inline-block;
  vertical-align: top;
  width: 576px;
  height: 340px;
  position: relative;
  margin-top: 54px;
}
.pic-list > ul li:nth-child(odd) {
  margin-right: 48px;
}
.pic-list > ul li .pic {
  display: block;
  width: 576px;
  height: 340px;
  overflow: hidden;
}
.pic-list > ul li .pic img {
  width: 100%;
  height: 100%;
  transition: all 0.5s;
  -o-transition: all 0.5s;
  -ms-transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
}
.pic-list > ul li .title {
  display: block;
  width: 192px;
  height: 79px;
  background: url(../image/white.png) no-repeat center center;
  position: absolute;
  left: 28px;
  bottom: 21px;
  padding-left: 17px;
  padding-top: 15px;
  transition: all 0.5s;
  -o-transition: all 0.5s;
  -ms-transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
}
.pic-list > ul li .title span {
  color: #181c28;
  font-size: 18px;
  line-height: 1.5;
  margin-right: 15px;
  transition: all 0.5s;
  -o-transition: all 0.5s;
  -ms-transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
}
.pic-list > ul li .title .arrow {
  display: inline-block;
  width: 31px;
  height: 7px;
  background: url(../image/arrow3.png) no-repeat center center;
  transition: all 0.5s;
  -o-transition: all 0.5s;
  -ms-transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
}
.pic-list > ul li .title p {
  color: #999999;
  font-size: 14px;
  line-height: 1;
  margin-top: 8px;
  text-transform: capitalize;
  transition: all 0.5s;
  -o-transition: all 0.5s;
  -ms-transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
}
.pic-list > ul li:hover .pic img {
  transform: scale(1.1);
  -o-transform: scale(1.1);
  -webkit-transform: scale(1.1);
  -moz-transform: scale(1.1);
  -ms-transform: scale(1.1);
}
.pic-list > ul li:hover .title {
  background: url(../image/blue.png) no-repeat center center;
}
.pic-list > ul li:hover .title span {
  color: #ffffff;
}
.pic-list > ul li:hover .title .arrow {
  background: url(../image/arrow2.png) no-repeat center center;
}
.pic-list > ul li:hover .title p {
  color: #ffffff;
}