.main {
  width: 1202px;
  margin: 0 auto;
  font-size: 17px;
}

.base {
  height: 336px;
}

.title {
  height: 36px;
  display: flex;
  justify-content: space-between;
  border-bottom: solid 3px #B42B2B;
}

.title img {
  margin-top: 4px;
  width: 110px;
  height: 28px;
}

.title>a {
  color: #707070;
  line-height: 36px;
}

.title>a:hover {
  color: #B42B2B;
  line-height: 36px;
}

.content {
  float: right;
}

.lunbo {
  width: 567px;
  height: 281px;
  position: relative;
}

.lunbo .item {
  width: 567px;
  height: 281px;
  position: absolute;
}

.lunbo img {
  width: 100%;
  height: 100%;
}

.item.active {
  opacity: 1;
}

.lunbo #circle {
  height: 18px;
  width: 120px;
  position: absolute;
  display: flex;
  bottom: 2px;
  right: 14px;
}

.lunbo .circle {
  height: 18px;
  width: 18px;
  line-height: 18px;
  text-align: center;
  margin: 0 10px;
  background-color: #FFFFFF;
}

.list-container {
  margin-left: 55px;
  width: 580px;
}

.list>li {
  height: 38px;
  display: flex;
  justify-content: space-between;
  line-height: 38px;
  color: #707070;
}

.list>li a {
  color: #707070;
}

.list>li:hover {
  color: #B42B2B;
}

.list>li:hover a {

  color: #B42B2B;
}

.container {
  margin-top: 10px;
  height: 300px;
  width: 1202px;
  display: flex;
  justify-content: space-between;
}

.list-left,
.list-right {
  margin-top: 20px;
  width: 580px;
  height: 100%;
}

.science {
  width: 100%;
  height: 300px;
}

.science-list {
  display: flex;
  justify-content: space-between;
}

.science-list>.list {
  display: flex;
  flex-wrap: wrap;
  margin-left: -42px;
}

.science-list .list li {
  padding-left: 42px;
  width: 580px;
}

.img-lunbo {
  width: 1202px;
  height: 280px;
  margin-top: 40px;
}

.img-left {
  width: 600px;
  float: left;
}

.img-left img {
  height: 130px;
  width: 580px;
}

.img-left .img2{
  height: 130px;
  width: 595px;
  margin-left: -9px;
  margin-top: 16px;
}


.background-bottom {
  width: 1202px;
  height: 650px;
  margin: 0 auto;
  background-image: url(../images/bottom_img.png);
  background-size: 100% 100%;
  position: relative;
}

.background-bottom .link {
  position: absolute;
  top: 280px;
}
.background-bottom .container-bottom2 {
  width: 100%;
  height: 55px;
  margin-left: -1124px;
}