.th-banner {
    width: 100%;
    height: 540px;
    background-image: url(../img/new/cases/banner.png);
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    overflow: hidden;
    min-width: 1440px;
}

.th-banner section {
    text-align: center;
    margin-top: 220px;
    position: relative;
}

.th-banner section h2 {
    font-size: 60px;
    font-weight: bold;
    position: relative;
    z-index: 1;
    color: #fff;
}

.th-banner section h2::before {
    content: '';
    width: 188px;
    height: 8px;
    background: #f1a230;
    position: absolute;
    z-index: -1;
    bottom: 10px;
    margin-left: -5px;
    left: calc(50% - 90px);
}

.th-banner section p {
    font-size: 22px;
    /* font-weight: bold; */
    color: #fff;
    margin-top: 10px;
}

.containerSmall {
    width: 1440px;
}

#cases {
    width: 1200px;
    position: relative;
    left: 50%;
    transform: translate(-50%, 0);
}

.cases .container {
    /* width: 80%;
    margin: 0 10%; */
    width: 1200px;
    /* height: 600px; */
}

.cases .container .top_title {
    margin-top: 120px;
    position: relative;
    zoom: 1;

}

.cases .container .top_title:after {
    /*伪元素是行内元素 正常浏览器清除浮动方法*/
    content: "";
    display: block;
    height: 0;
    clear: both;
    visibility: hidden;
}


.cases .container .top_title .left i {
    font-size: 22px;
    color: #152952;
    font-weight: bold;
    position: relative;
    bottom: 5px;
}

.cases .container .top_title::before {
    content: '';
    width: 110%;
    height: 2px;
    background: #eee;
    position: absolute;
    bottom: -5px;
    left: -5%;
}

.cases .container .top_title .right span,
.cases .container .top_title .right span a {
    color: #979797;
}

.cases .container .top_title .right span:last-child a {
    color: #001c39;
}

.content .city,
.content .subway {
    margin-top: 200px;
}

.content .train .title img,
.content .city .title img,
.content .subway .title img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.content .train {
    margin-top: 105px;
}

.content .train .title,
.content .city .title,
.content .subway .title {
    height: 73.97px;
}

/*轮播图*/
.train.image,
.city.image,
.subway.image {
    list-style: none;
    /* height: 454px; */
}

.train .box,
.city .box,
.subway .box {
    /* height: 454px; */
    position: relative;
    margin: 60px auto;
}

.train .image::after,
.city .image::after,
.subway .image::after {
    content: "";
    display: block;
    height: 0;
    clear: both;
    visibility: hidden;
}

.train .image .out_li,
.city .image .out_li,
.subway .image .out_li {
    width: 100%;
    /* height: 454px; */
    float: left;
    /* position: absolute; */
    display: none;
}

.city .image .out_li,
.subway .image .out_li {
    display: block;
}

.train .inner_ul,
.city .inner_ul,
.subway .inner_ul {
    zoom: 1;

}

.train .inner_ul:after,
.city .inner_ul:after,
.subway .inner_ul:after {
    content: "";
    display: block;
    height: 0;
    clear: both;
    visibility: hidden;
}

.train .inner_ul li,
.city .inner_ul li,
.subway .inner_ul li {
    display: inline-block;
    width: 32%;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

.train .inner_ul li a,
.city .inner_ul li a,
.subway .inner_ul li a {
    width: 100%;
    height: 100%;
}

.train .inner_ul li:hover,
.city .inner_ul li:hover,
.subway .inner_ul li:hover {
    cursor: pointer;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

.train .inner_ul li:hover img,
.city .inner_ul li:hover img,
.subway .inner_ul li:hover img {
    transition: .5s transform;
    transform: scale(1.15);
}

.train .inner_ul li:nth-child(2),
.city .inner_ul li:nth-child(2),
.subway .inner_ul li:nth-child(2) {
    margin: 0 1%;
}

.train .inner_ul li .img,
.city .inner_ul li .img,
.subway .inner_ul li .img {
    width: 384px;
    height: 206px;
    overflow: hidden;
}

.train .inner_ul li img,
.city .inner_ul li img,
.subway .inner_ul li img {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;
    min-width: 384px;
}

.train .inner_ul li p:nth-child(2),
.city .inner_ul li p:nth-child(2),
.subway .inner_ul li p:nth-child(2) {
    font-size: 16px;
    font-weight: bold;
    margin: 20px 15px;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
    color: #333;

}

.train .inner_ul li p:nth-child(3),
.city .inner_ul li p:nth-child(3),
.subway .inner_ul li p:nth-child(3) {
    margin: 0 15px 0 15px;
    height: 80px;
    overflow: hidden;
    color: #666;
}

.train .num,
.city .num,
.subway .num {
    position: absolute;
    list-style: none;
    cursor: pointer;
    bottom: -80px;
    /* left: calc(52% - 84px);
    transform: translate(50%, 0px); */
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

/* .city .num,
.subway .num {
    left: calc(55% - 84px);
    transform: translate(50%,0px);
} */
.train .num li,
.city .num li,
.subway .num li {
    float: left;
    color: white;
    width: 10px;
    height: 10px;
    border-radius: 100%;
    background-color: gray;
    margin: 0 4px;
    text-align: center;
    line-height: 20px;
}

.train .num .current {
    background-color: #44bda9;
}

.city .num .current {
    background-color: #f1a230;
}

.subway .num .current {
    background-color: #7a9ac1;
}

.train .arrow,
.city .arrow,
.subway .arrow {
    height: 48px;
    width: 24px;
    position: absolute;
    cursor: pointer;
    /* background-color: #eaf4ff; */
    /* color: #1b5fb2; */
    /* opacity: 0.5; */
    /* font-size: 20px; */
    text-align: center;
    line-height: 60px;
    top: 130px;
    display: none;
}

.city .arrow,
.subway .arrow {
    display: block;
    /* background-color: #eee */
}

.train .left_arrow,
.city .left_arrow,
.subway .left_arrow {
    left: -50px;
}

.train .right_arrow,
.city .right_arrow,
.subway .right_arrow {
    right: -40px;
}

.subway {
    padding-bottom: 35px;
}

footer {
    margin-top: 235px;
    min-width: 1440px;
}