html,
body {
  position: relative;
  height: 100%;
}
.swiper-container {
  width: 100%;
  height: 300px;
  margin-left: auto;
  margin-right: auto;
}

.swiper-slide {
  background-size: cover;
  background-position: center;
}
.swiper-slide-thumb-active{
    border-bottom:1px solid red ;
}
.gallery-top {
  height:auto;
  width:100%;
  margin:20px auto;
}

.gallery-thumbs {
  height:50px;
  text-align: center;
  line-height: 50px;
  box-sizing: border-box;
  width: 90%;
}

.gallery-thumbs .swiper-slide {
  width: 25%;
  height:90%;
  opacity: 0.4;
}
.gallery-thumbs .swiper-slide-thumb-active {
  opacity: 1;
}
.nav{
  width: 1200px;
  margin: 0 auto;
  background-color: aquamarine;
  position: relative;
}
.contain{
  position: relative;
}
.gallery-top>{
    width:1200px;
    height: auto;
    margin: auto;
}
/* .info{line-height:500px;text-align: center;color: aliceblue ;font-size: 30px} */
.info ul li {
  float: left;
  margin: 0 18px;
  list-style: none;
  margin-bottom: 10px;
}
.gallery-top .swiper-wrapper .swiper-slide{
    /* height: 500px; */
    background-size: 100% 100% !important;
}
.next1
{
  background: url(zctj_right.png);
  position: absolute;
  top: 50%;
  right: -45px;
  width: 40px;
  height: 40px;
  background-size: 100% 100%;
  z-index: 2;
}
.next1.swiper-button-disabled
{
  background: url(zctj_right_1.png);
  background-size: 100% 100%;
  width: 50px;
  height: 50px;
}
.prev1
{
  background: url(zctj_left.png);
  position: absolute;
  top: 50%;
  left: -45px;
  width: 40px;
  height: 40px;
  background-size: 100% 100%;
  z-index: 2;
}
.prev1.swiper-button-disabled
{
  background: url(zctj_left_1.png);
  background-size: 100% 100%;
  width: 50px;
  height: 50px;
}