.train_banner {
  width: 100%;
  overflow: hidden;
  position: relative;
  max-height: 700px;
}
.train_banner .banner_images {
  width: 1000%;
  margin-bottom: 0px;
  position: relative;
}
.train_banner .banner_images li {
  float: left;
  width: 10%;
}
.train_banner .banner_images li a {
  display: block;
  width: 100%;
}
.train_banner .banner_images li a img {
  display: block;
  width: 100%;
  object-fit: cover;
}
.train_banner .banner_index {
    position: absolute;
    bottom: 0px;
    width: 100%;
    text-align: right;
    background: rgba(0,0,0,0.1);
    padding: 5px 0px;
    margin-bottom: 0px;
    z-index: 6;
}
.banner_index-frame {
  display: inline-block;
}
.train_banner .banner_index li {
  transition: all 0.3s;
  margin-right: 15px;
  float: left;
  width: 30px;
  height: 10px;
  /* border-radius: 50%; */
  background: #fff;
  opacity: 0.4;
}
.train_banner .banner_index li.current {
  /* transition: all 0.3s; */
  background-color: #fff;
  opacity: 1;
}
.train_banner .banner_index li:hover {
  transform: scale(1.5);
}
.train_banner .banner_index li.current:hover {
  transform: scale(1);
}
.train_banner_left {
  cursor: pointer;
  transition: all 0.5s;
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 5%;
  text-align: center;
  z-index: 5;
  color: #fff;
  opacity: 0.3;
  background: -webkit-linear-gradient(left, black, rgba(255, 255, 255, 0));
  background: -o-linear-gradient(right, black, rgba(255, 255, 255, 0));
  background: -moz-linear-gradient(right, black, rgba(255, 255, 255, 0));
  background: linear-gradient(to right, black, rgba(255, 255, 255, 0));
}
.train_banner_right {
  cursor: pointer;
  transition: all 0.5s;
  position: absolute;
  right: 0;
  top: 0;
  height: 100%;
  width: 5%;
  text-align: center;
  z-index: 5;
  color: #fff;
  opacity: 0.3;
  background: -webkit-linear-gradient(left, rgba(255, 255, 255, 0), black);
  background: -o-linear-gradient(right, rgba(255, 255, 255, 0), black);
  background: -moz-linear-gradient(right, rgba(255, 255, 255, 0), black);
  background: linear-gradient(to right, rgba(255, 255, 255, 0), black);
}
.train_banner_left:hover,
.train_banner_right:hover {
  display: block;
  opacity: 0.5;
}
.train_banner_li {
  position: absolute;
  top: 50%;
  width: 100%;
  text-align: center;
}