html,body {
  width: 100%;
  height: 100%;
}
#banner {
  height: 420px;
  display: flex;
  /* background: url(https://xuexiang.oss-cn-hangzhou.aliyuncs.com/guanwang/images/public_class/banner1.png) no-repeat; */
  background: url(https://xuexiang.oss-cn-hangzhou.aliyuncs.com/8d9d6f4669f9cb20899356ddc29815af.png) no-repeat;
  /* background-size: 100% 100%; */
}
#banner img {
  /* margin-top: 20px; */
  width: 100%;
}

h1 {
  font-size: 47px;
  margin: 30px 0 0 0;
}
h3 {
  font-size: 20px;
  color: #999;
  margin: 5px auto 50px auto;
  width: 600px;
}

section {
  padding-bottom: 100px;
  overflow: hidden;
}

.section_bg_light_gray {
  background: #fafafa;
}

.contain {
  width: 1200px;
  margin: auto;
  text-align: center;
}

.contain_mini {
  width: 1000px;
  margin: auto;
  text-align: center;
}

.contain_mini .swiper_box .swiper_top {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
}

.contain_mini .swiper_box .swiper_top .right_info .ul_info {
  margin-left: 70px;
}
.contain_mini .swiper_box .swiper_top .right_info {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.contain_mini .swiper_box .swiper_top .right_info .ul_info ul li {
  list-style: disc;
  text-align: left;
  line-height: 2.5;
}
.contain_mini .swiper_box .swiper_top .right_info .ul_info ul li::marker {
  color: #07a698;
}

.contain_mini .gray_text {
  color: #666666;
  font-size: 16px;
}

.contain_mini .swiper_box .swiper_top .left_cover {
  position: relative;
  width: 390px;
  height: 484px;
  /* margin-left: 20px; */
}
.contain_mini .swiper_box .swiper_top .left_cover img {
  position: absolute;
  left: -44px;
  top: -120px;
}

.contain_mini .swiper_box .swiper_top .right_info .img_info {
  margin-bottom: 45px;
  display: flex;
  flex-direction: row;
}
.contain_mini .swiper_box .swiper_top .right_info .img_info img {
  width: 190px;
  height: 135px;
  margin-bottom: 10px;
}
.contain_mini .swiper_box .swiper_top .right_info .img_info .img_box:not(:first-child) {
  margin-left: 27.5px;
}

.contain_mini .swiper_box .swiper_btm {
  position: relative;
  margin-top: 20px;
}

.contain_mini .swiper_box .swiper_btm .scroll_box{
  display: flex;
  flex-direction: row;
  transition: all 0.3s ease;
}

.contain_mini .swiper_box .swiper_btm .hidden_box{
  overflow: hidden;
}

.contain_mini .swiper_box .swiper_btm .rl_controller > div{
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  cursor: pointer;
}

.contain_mini .swiper_box .swiper_btm .rl_controller .left_btn{
  left: -40px;
}

.contain_mini .swiper_box .swiper_btm .rl_controller .right_btn{
  right: -40px;
}

.contain_mini .swiper_box .swiper_btm .scroll_box img{
  width: 300px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.contain_mini .swiper_box .swiper_btm .scroll_box > div {
  overflow: hidden;
  flex-shrink: 0;
  margin-right: 50px;
  display: flex;
  width: 300px;
  height: 188px;
  border-radius: 10px;
}

.contain_mini .swiper_box .swiper_btm .scroll_box img:hover{
  scale: 1.05;
}

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

.contain_list .list_item img{
  transition: all 0.3s ease;
}

.contain_list .list_item img:hover {
  transform: scale(1.02);
  filter: drop-shadow(0px 0px 5px #cdf5ff);
}