.section_header {
        border-bottom: 1px solid #ddd;
    }
    
    .section_header h2 {
        height: 70px;
        line-height: 70px;
        font-weight: 400;
        font-size: 22px;
        color: #333;
    }
    
    .section_header ul li {
        float: left;
    }
    
    .section_header ul li a {
        display: block;
        padding: 0 2rem;
        height: 70px;
        line-height: 70px;
        font-size: 14px;
        color: #333;
    }
    
    .section_header ul li .current {
        color: red;
    }
    
    .section_header ul li a:hover {
        color: #999;
    }
    
    .section_header ul li a.current:hover {
        color: red;
    }
    
    .section_header h2 button {
        display: none;
    }
    
    .cat_nav {
        float: right;
    }
    /* 产品展示-开始 */
    
    .product_header {
        overflow: hidden;
    }
    
    .product_nav ul li a {
        padding: 0 0.8rem;
    }
    
    .product_box {
        width: 100%;
    }
    
    .product_box ul li {
        padding: 15px 5px;
    }
    
    .product_box ul li a {
        display: block;
        width: 100%;
        height: 100%;
    }
    
    .product_box ul li a h3 {
        padding: 5px 5px;
        height: 50px;
        text-align: center;
        font-size: 18px;
        font-weight: 400;
        color: #333;
    }
    
    .product_box ul li a img {
        width: 100%;
        transition: opacity 0.8s;
    }
    
    .product_box ul li a:hover img {
        opacity: 0.5;
    }
    
    .product_subnav {
        width: 100%;
        padding: 30px 0;
    }
    
    .product_subnav ul {
        display: table;
        margin: 0 auto;
    }
    
    .product_subnav ul li {
        float: left;
        margin-right: 1px;
    }
    
    .product_subnav ul li a {
        display: block;
        padding: 15px 15px;
        background: #333;
        font-size: 14px;
        color: whitesmoke
    }
    
    .product_subnav ul .subnav_on a {
        background: #888;
    }
    
    .product_subnav ul li a:hover {
        background: #888;
    }
    
    .showProduct_box {
        padding: 0 15px;
    }
    
    .product_pic {
        overflow: hidden;
    }
    
    .pic_box {
        position: relative;
        width: 100%;
    }
    
    .pic_box ul {
        position: absolute;
        width: 1000%;
    }
    
    .pic_box ul li {
        float: left;
    }
    
    .pic_box ul li img {
        width: 100%;
    }
    
    .pic_switch ol li {
        float: left;
        width: 4rem;
        overflow: hidden;
    }
    
    .pic_switch ol .on {
        border: 2px solid #607fa6;
    }
    
    .pic_switch ol li a {
        display: block;
    }
    
    .pic_switch ol li a:hover img {
        transform: scale(1.2);
    }
    
    .pic_switch ol li img {
        width: 100%;
        transition: all 0.8s;
    }
    
    .product_info h3 {
        line-height: 2.5;
        font-size: 20px;
    }
    
    .product_info tr {
        height: 35px;
        line-height: 35px;
        font-size: 14px;
        color: #666;
    }
    
    .product_info .td_left {
        padding-right: 20px;
        text-align: justify;
        text-justify: distribute-all-lines;
        text-align-last: justify;
    }
    
    .product_info p {
        line-height: 1.5;
        padding-top: 20px;
        text-indent: 2em;
        font-size: 14px;
        color: #666;
    }
    
    .product_content {
        padding: 30px 15px;
    }
    
    .product_content img {
        max-width: 100%;
        height: auto !important;
    }
    
    .product_content table {
        max-width: 100%;
    }
    
    .detail {
        margin-bottom: 30px;
        padding-left: 20px;
        width: 100%;
        height: 2.5rem;
        background: #f8f8f8;
        line-height: 2.5rem;
        font-size: 14px;
        border: 1px solid #ddd;
    }
    /* 公司简介 -开始 */
    
    .about_content {
        padding: 50px 15px;
    }
    
    .about_content p {
        font-size: 14px;
        line-height: 1.9;
        color: #333;
        text-indent: 2em;
    }
    
    .about_video video {
        width: 100%;
        border-radius: 5px;
    }
    
    .about h3 {
        width: 100%;
        padding: 20px 0 30px 0;
        text-align: center;
        font-size: 16px;
    }
    /* 联系我们-开始 */
    
    .contact_box {
        padding: 50px 20px;
    }
    
    .contact_box img {
        width: 100%;
        max-width: 600px;
        border-radius: 5px;
    }
    
    .contact_content {
        padding: 0 15px;
    }
    
    .contact_content h3 {
        padding: 20px 0 30px 0;
        font-size: 1.1rem;
        font-weight: 400;
    }
    
    .contact_content p {
        font-size: 0.9rem;
        padding: 10px 0;
    }
    
    .contact_content a {
        color: #1c57c4;
    }
    /* 新闻资讯-开始 */
    
    .news {
        padding-bottom: 30px;
    }
    
    .news_box {
        padding-top: 20px;
    }
    
    .news_box ul li a {
        display: block;
        padding: 0 15px;
        width: 100%;
        height: 57px;
        line-height: 57px;
        font-size: 14px;
        color: #333;
        border-bottom: 1px solid #ddd;
    }
    
    .news_box ul li a:hover {
        background: #eee;
    }
    
    .news_box ul li a h2 {
        font-weight: 400;
        height: 57px;
        line-height: 57px;
    }
    
    .news_box ul li a span {
        display: block;
        color: #818181;
    }
    
    .news_info {
        width: 100%;
        border-bottom: 1px solid #ddd;
    }
    
    .news_info h1 {
        width: 100%;
        padding: 20px 0;
        text-align: center;
        font-size: 28px;
        font-weight: 400;
        color: #333;
    }
    
    .news_info div {
        width: 100%;
        padding-bottom: 10px;
        text-align: center;
        font-size: 14px;
    }
    
    .news_info div a {
        color: #607fa6;
    }
    
    .news_content {
        padding: 30px 15px;
        border-bottom: 1px solid #ddd;
    }
    
    .news_content img {
        max-width: 100%;
        height: auto !important;
    }
    
    .bottom_page {
        width: 100%;
        font-size: 14px;
        color: #818181;
    }
    
    .bottom_page a {
        display: inline-block;
        padding: 10px 0;
        color: #1c57c4;
    }
    
    .text_right {
        text-align: left;
    }
    /* 公司环境-开始 */
    
    .case_box {
        padding-top: 30px;
    }
    
    .case_box ul li {
        padding: 0 1px 1px 0;
    }
    
    .case_box ul li a {
        display: block;
        color: #4D4B4C;
    }
    
    .case_box ul li a span {
        display: block;
        background: #000;
    }
    
    .case_box ul li a img {
        width: 100%;
        transition: opactiy 1s;
    }
    
    .case_box ul li a h3 {
        height: 50px;
        line-height: 50px;
        font-weight: 400;
        font-size: 16px;
        text-align: center;
        background: #f4f4f4;
        transition: all 0.5s;
    }
    
    .case_box ul li a:hover h3 {
        background: #4D4B4C;
        color: #999;
    }
    
    .case_box ul li a:hover img {
        opacity: 0.5;
    }
    
    .case_box_title {
        padding: 20px 0;
    }
    
    .case_box_title h3 {
        width: 100%;
        text-align: center;
        font-size: 20px;
        font-weight: 400;
    }
    
    .show_case_box {
        padding: 20px 0 20px 0;
        margin: 0 auto;
        width: 80%;
    }
    
    .picBox {
        position: relative;
        width: 100%;
        /* height: 25rem; */
        overflow: hidden;
    }
    
    .picBox ul {
        position: absolute;
        top: 0;
        left: 0;
        width: 500%;
        height: 100%;
    }
    
    .picBox ul li {
        float: left;
    }
    
    .picBox ul li a img {
        width: 100%;
        height: 100%;
    }
    
    .img_switch {
        margin: 25px 0;
        width: 100%;
    }
    
    .img_switch .prev a,
    .img_switch .next a {
        display: block;
        margin: 1px 0;
        width: 1.6rem;
        height: 2.4rem;
    }
    
    .img_switch .prev a {
        float: left;
        background: url(../images/prevBtnTop.png) no-repeat;
        background-size: contain;
    }
    
    .img_switch .next a {
        float: right;
        background: url(../images/nextBtnTop.png) no-repeat;
        background-size: contain;
    }
    
    .lisBox {
        float: left;
        padding: 0 20px;
    }
    
    .lisBox ol li {
        float: left;
        padding: 0 2px;
        width: 5rem;
        height: 2.5rem;
        overflow: hidden;
    }
    
    .lisBox ol li:hover img {
        transform: scale(1.2);
    }
    
    .lisBox ol li.on {
        border: 2px solid #607fa6;
    }
    
    .lisBox ol li img {
        width: 100%;
        transition: all 0.8s;
    }
    
    .case_page {
        border-top: 1px solid #ddd;
    }
    /* 搜索-开始 */
    
    .search_bd {
        padding: 0 15px;
    }
    
    .search_logo {
        padding: 50px 0;
        text-align: center;
    }
    
    .search_content {
        padding: 20px 0 50px 0;
        text-align: center;
    }
    
    .search_content form {
        text-align: center;
    }
    
    .inp_srh {
        padding-left: 15px;
        width: 40%;
        height: 30px;
        font-size: 16px;
        color: #333;
    }
    
    .btn_srh {
        padding: 0 35px;
        height: 30px;
        background: #23b7e5;
        border: none;
        border-radius: 2px;
        font-size: 16px;
        color: whitesmoke;
        transition: all 0.5s;
    }
    
    .btn_srh:hover {
        background: #38c4f0;
    }
    
    .search_time {
        padding: 15px 0;
        color: #333;
    }
    
    .search_history h5 {
        font-size: 16px;
        padding: 10px 0;
    }
    
    .search_history_list {
        padding-left: 2em;
    }
    
    .search_list {
        padding: 30px 0;
    }
    
    .search_list .item {
        padding: 15px 0;
    }
    
    .item h3 {
        line-height: 1.5;
        font-weight: 400;
        font-size: 16px;
        color: #12C;
    }
    
    .item .time {
        color: green;
    }
    
    .item .txt {
        padding-left: 2em;
    }
    /* 在线留言-开始 */
    
    .feeback_bd {
        padding: 50px 15px;
    }
    
    .feeback_bd dt {
        padding-left: 15px;
        height: 60px;
        line-height: 60px;
        background: #ddd;
        font-size: 16px;
    }
    
    .feeback_bd dd {
        padding-left: 15px;
        height: 60px;
        border-bottom: 1px solid #ddd;
        line-height: 60px;
        font-size: 16px;
    }
    
    .feeback_bd .message {
        padding-top: 10px;
        height: 120px;
    }
    
    .feeback_bd .message span {
        line-height: 1;
        vertical-align: top;
    }
    
    .feeback_bd dd textarea {
        height: 100px;
        width: 305px;
    }
    
    .feeback_bd dd input {
        padding-left: 10px;
        width: 305px;
    }
    
    .feeback_bd dd .captcha {
        width: 80px;
    }
    
    .feeback_bd dd input:focus {
        border: 1px solid #23b7e5;
    }
    
    .feeback_bd dd span {
        display: inline-block;
        width: 120px;
    }
    
    .feeback_bd dd button {
        padding: 0 30px;
        height: 34px;
        border: none;
        border-radius: 2px;
        background: #23b7e5;
        font-size: 14px;
        color: whitesmoke;
    }
    
    .feeback_bd dd button:hover {
        background: #38c4f0;
    }
    /* 分页-开始 */
    
    .pages {
        padding: 30px 0;
    }
    
    #pages {
        display: table;
        margin: 0 auto;
        height: 25px;
    }
    
    #pages li {
        float: left;
    }
    
    #pages li a {
        display: inline-block;
        margin: 0 2px;
        width: 25px;
        height: 25px;
        line-height: 25px;
        border: 1px solid #ddd;
        text-align: center;
        color: #aaa;
    }
    
    #pages li a:hover {
        border: 1px solid #a0a0a0;
    }
    
    #pages li span {
        display: inline-block;
        width: 25px;
        height: 25px;
        line-height: 25px;
        text-align: center;
    }
    
    #pages .active span {
        background: #f0f0f0;
        border: 1px solid #ddd;
        font-weight: 700;
        color: #aaa;
    }
    
    #pages .active span:hover {
        border: 1px solid #a0a0a0;
    }
    
    @media screen and (max-width:768px) {
        .about_video {
            padding: 0 15px;
        }
        .section_header {
            padding: 20px 15px 0 15px;
            border: none;
        }
        .section_header h2 {
            position: relative;
            padding-left: 30%;
            height: 65px;
            line-height: 65px;
            border: 1px solid #ddd;
        }
        .section_header h2 button {
            display: block;
            position: absolute;
            top: 0;
            right: 0;
            width: 63px;
            height: 63px;
            background: #fff;
            border: none;
            border-left: 1px solid #ddd;
            font-size: 30px;
        }
        .section_header ul {
            display: none;
            border: 1px solid #ddd;
            border-top: none;
        }
        .section_header ul li {
            float: none;
        }
        .section_header ul li a {
            padding-left: 15%;
            font-size: 16px;
        }
        .cat_nav {
            float: none;
        }
        .case_box {
            padding: 30px 20px 0;
        }
        .show_case_box {
            width: 85%;
        }
        .product_subnav ul {
            display: block;
        }
        .product_subnav ul li {
            float: none;
            width: 100%;
            padding-bottom: 1px;
        }
        .inp_srh {
            width: 65%;
        }
        .feeback_bd dd span {
            width: 30%;
        }
        .feeback_bd dd input,
        .feeback_bd dd textarea {
            width: 70%;
        }
    }
    
    @media screen and (min-width:768px) {
        .section_header {
            height: 70px;
        }
    }
    
    @media screen and (min-width:992px) {
        .about_video {
            padding: 0 20%;
        }
        .text_right {
            text-align: right;
        }
    }