/*about us*/
.th-banner {
    width: 100%;
    height: 540px;
    background-image: url(../../../img/new/pages/product/banner.png);
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    /* background-size: 100% auto,100% auto; */
    /* overflow: hidden; */

}

.banner_img {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;
}

/*解决margin-top 塌陷问题*/
.th-banner::before {
    content: '';
    display: table;
    /* height: 0;
    clear: both;
    visibility: hidden; */
}

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

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

.th-banner section h2::before {
    content: '';
    width: 300px;
    height: 8px;
    background: #f1a230;
    position: absolute;
    z-index: -1;
    bottom: 10px;
    margin-left: -15px;
    left: calc(50% - 140px);
}

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

.th-banner section .modal-list {
    /* overflow: hidden; */
    margin-top: 150px;
    line-height: 64px;
    width: 1200px;
    position: relative;
    left: 50%;
    transform: translate(-50%, 0);
    z-index: 1;
}

.th-banner section .modal-list .bNav {
    position: relative;
    display: inline-block;
    width: 230px;
    text-align: center;
    color: #fff;
    font-size: 22px;
    z-index: 1;
    height: 66px;
}

.th-banner section .modal-list .bNav a {
    color: #fff;
}

.th-banner section .modal-list .bNav:hover {
    cursor: pointer;
}

.th-banner section .modal-list .bNav::before {
    -webkit-transition: width .2s ease-in-out;
    transition: width .2s ease-in-out;
    content: '';
    background: #f1a230;
    height: 3px;
    width: 0;
    position: absolute;
    bottom: 12px;
    left: 31%;
}

.modal::before {
    width: 90px !important;
}

.aa::before {
    width: 90px !important;
}

.dim {
    opacity: 0.3;
    filter: alpha(opacity=30);
    background: #000;
    width: 100%;
    height: 66px;
    z-index: 0;
    position: absolute;
    bottom: 0.5px;
}

.containerSmall {
    overflow: unset;
}

.main_section {
    min-width: 1440px;
    /*因为产品与解决方案的下划线是1440px*/
    overflow: hidden;
}

/**/
.product {
    width: 1200px;
    margin: 0 auto;
}

.product .container {
    /* width: 1440px; */
}

.product .container .top_title {
    margin-top: 84px;
    position: relative;
    zoom: 1;

}

.product .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;
}


.product .container .top_title .left i {
    font-size: 22px;
    color: #152952;
    font-weight: bold;
}

.product .container .top_title::before {
    content: '';
    width: 1400px;
    height: 2px;
    background: #eee;
    position: absolute;
    bottom: -11px;
    left: -100px;
}

.product .container .top_title .right span,
.product .container .top_title .right span a {
    color: #979797;
    vertical-align: top;
}

.product .container .top_title .right span:last-child a {
    color: #001c39;
    max-width: 450px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}


.content.train .main_text {
    margin-top: 100px;
    background-image: url(../../../img/new/pages/product/train_bg.png);
    height: 380px;
}

.content.city .main_text {
    margin-top: 100px;
    background-image: url(../../../img/new/pages/product/city_bg.png);
    height: 380px;
}

.content.subway .main_text {
    margin-top: 100px;
    background-image: url(../../../img/new/pages/product/subway_bg.png);
    height: 380px;
}

.content.double .main_text {
    margin-top: 100px;
    background-image: url(../../../img/new/pages/product/double_bg.png);
    height: 380px;
}

.content.new_energy .main_text {
    margin-top: 100px;
    background-image: url(../../../img/new/pages/product/new_energy_bg.png);
    height: 380px;
}

.text_left {
    width: 541px;
    /* height: 207px; */
    line-height: 25px;
    margin-left: 20px;
    text-indent: 2em;
    color: #666;
}

.text_title img {
    margin-left: 45px;
    margin-top: 50px;
}

.detail_list {
    margin-left: 30px;
    margin-bottom: 250px;
    position: relative;
}

.double .detail_list {
    margin-bottom: 200px;
}

.train .detail_list img {
    position: absolute;
    top: 130px;
    right: -70px;
}

.city .detail_list img {
    position: absolute;
    top: 700px;
}

.subway .detail_list img {
    position: absolute;
    top: 0;
    right: -70px;
}

.double .detail_list img {
    position: absolute;
    top: 545px;
    right: -70px;
}

.new_energy .detail_list img {
    position: absolute;
    top: -130px;
    right: -115px;
}

.city .detail_list ul li:last-child {
    padding-bottom: 70px;
}

.subway .detail_list ul li:last-child {
    padding-bottom: 200px;
}

.new_energy .detail_list {
    height: 250px;
}

.detail_list ul li {
    /* list-style: circle; */
    list-style-type: square;
    color: #044A9B;
    font-size: 22px;
    margin-top: 65px;
}

.detail_list ul li .text {
    color: #818181;
    font-size: 14px;
    text-indent: 2em;
    margin-top: 20px;
    line-height: 30px;
    width: 641px;
}

.double .detail_list ul li:first-child .text {
    width: 100%;
}

.double .detail_list ul li .text:nth-child(2) {
    margin-top: 0;
}

/*自定义底部*/
.product_footer {
    min-width: 1440px;
}