.train_banner {
    width: 100%;
    overflow: hidden;
    position: relative;
    max-height: 760px
}

.train_banner .banner_images {
    width: 1000%
}

.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: 20px;
    z-index: 99;
    width: 100%;
    text-align: center
}

.banner_index-frame {
    display: inline-block
}

.train_banner .banner_index li {
    transition: all .3s;
    margin-right: 15px;
    float: left;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #fff
}

.train_banner .banner_index li.current {
    transition: all .3s;
    background-color: #1998da;
    width: 40px;
    border-radius: 5px
}

.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 .5s;
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 5%;
    text-align: center;
    z-index: 5;
    color: #fff;
    opacity: 1;
}

.train_banner_right {
    cursor: pointer;
    transition: all .5s;
    position: absolute;
    right: 0;
    top: 0;
    height: 100%;
    width: 5%;
    text-align: center;
    z-index: 5;
    color: #fff;
    opacity: 1;
}

.train_banner_left:hover, .train_banner_right:hover {
    display: block;
    opacity: .5
}

.train_banner_li {
    position: absolute;
    top: 50%;
    width: 100%;
    text-align: center
}