@charset "utf-8";
body, html {
    margin: 0 auto;
    padding: 0;
    position: relative;
    height: 100%;
    font-style: normal;
    text-decoration: none;
    border: none;
    font-family: Helvetica Neue, Helvetica, PingFang SC, Hiragino Sans GB, Microsoft YaHei, \\5FAE\8F6F\96C5\9ED1, Arial, sans-serif;
    -webkit-tap-highlight-color: transparent;
    -webkit-font-smoothing: antialiased;
}

ul {
    list-style: none;
}

ul, li {
    margin: 0;
    padding: 0;
}

img {
    display: block;
}

h3, h4, h5, h6, p {
    margin: 0;
    padding: 0;
    font-weight: normal;
}

a {
    text-decoration: none;
    display: block
}

input {
    margin: 0;
    padding: 0;
    border: none;
    outline: none
}

button, textarea {
    margin: 0;
    padding: 0;
    outline: none;
    font-family: "微软雅黑";
}

select {
    outline: 0;
    border: none;
    background: 0 0;
    -webkit-appearance: none;
    appearance: none;
    -moz-appearance: none
}

textarea {
    resize: none;
    -webkit-appearance: none
}


input::-webkit-input-placeholder {
    color: #999;
}

input::-moz-placeholder { /* Mozilla Firefox 19+ */
    color: #999;
}

input:-moz-placeholder { /* Mozilla Firefox 4 to 18 */
    color: #999;
}

input:-ms-input-placeholder { /* Internet Explorer 10-11 */
    color: #999;
}

textarea::-webkit-input-placeholder {
    color: #999;
}

textarea::-moz-placeholder { /* Mozilla Firefox 19+ */
    color: #999;
}

textarea:-moz-placeholder { /* Mozilla Firefox 4 to 18 */
    color: #999;
}

textarea:-ms-input-placeholder { /* Internet Explorer 10-11 */
    color: #999;
}

.clearfix {
    clear: both;
}

.fl {
    float: left;
}

.fr {
    float: right;
}

.r-color {
    color: #E60012 !important;
}

.w-color {
    color: #fff !important;
}

.w-bg {
    background: #F2F0ED !important;
}

.head-bg {
    background: #000 !important;
}


.bg_box {
    width: 100%;
    line-height: 1;
}

.header {
    width: 100%;
    background: #fff;
}

.header .nav_bg {
    margin: 0 auto;
    position: relative;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
}

.header .nav_bg .nav li {
    float: left;
    margin-right: 25px;
    position: relative;
}

.header .nav_bg .nav li:last-child {
    margin-right: 76px;
}

.header .nav_bg .nav li > a {
    float: left;
    font-size: 18px;
    line-height: 64px;
    color: #333;
    /*padding-top: 30px;*/
}

.header .nav_bg .nav li .active {
    font-weight: bold;
}

.header .nav_bg .nav li.logo img {
    width: auto;
    height: 100%;
}

.header .nav_bg .nav li .nr {
    position: absolute;
    left: -20px;
    top: 64px;
    padding: 10px 0;
    background: rgba(255, 255, 255, .5);
    z-index: 3;
    display: none;
}

.header .nav_bg .nav li .nr .nav2 > a {
    font-size: 16px;
    line-height: 36px;
    color: #333;
    white-space: nowrap;
    padding: 0 20px;
    text-align: left;
}

.header .nav_bg .nav li .nr .nav2 > a:hover {
    background: #E60012;
    color: #fff;
}

.header .nav_bg .nav li .nr .nav2 div {
    position: absolute;
    left: 0;
    top: 0px;
    padding: 10px 0;
    background: rgba(255, 255, 255, .5);
    box-sizing: border-box;
    display: none;
    min-height: 100%;
}

.header .nav_bg .nav li .nr .nav2 div a {
    font-size: 16px;
    line-height: 26px;
    color: #333;
    text-align: left;
    min-width: 500px;
    padding: 5px 10px;
}

.header .nav_bg .nav li .nr .nav2 div a:hover {
    background: #E60012;
    color: #fff;
}

.header .search {
    width: 17px;
    height: 17px;
    background: url("../images/search.png") no-repeat center;
    background-size: 100% 100%;
    position: relative;
    cursor: pointer;
}

.header .language {
    border-radius: 4px;
    overflow: hidden;
    margin-left: 67px;
}

.header .language a {
    float: left;
    width: 34px;
    font-size: 14px;
    line-height: 34px;
    text-align: center;
}

.search_input {
    position: fixed;
    width: 100%;
    background: #fff;
    left: 0;
    top: 64px;
    z-index: 3;
    padding: 40px 0;
    display: none;
}

.search_input .nr {
    margin: 0 auto;
    width: 670px;
    border: 1px solid #F2F2F2;
    border-radius: 100px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    padding: 0 30px;
    box-sizing: border-box;
}

.search_input .nr .search_btn {
    width: 20px;
    height: 20px;
    margin-right: 15px;
    background: url("../images/search_b.png") no-repeat center;
    background-size: 100% 100%;
    cursor: pointer;
}

.search_input .nr .search_pro {
    font-size: 14px;
    line-height: 50px;
    color: #999;
    width: calc(100% - 35px);
}


#sy_banner {
    width: 100%;
}

#sy_banner img {
    width: 100%;
    height: auto;
}

#sy_banner .swiper-pagination .swiper-pagination-bullet {
    width: 10px;
    height: 10px;
    background: #ccc;
    border-color: #ccc;
}

#sy_banner .swiper-pagination .swiper-pagination-bullet-active {
    background: #007aff;
    border-color: #007aff;
}

.ny_banner {
    width: 100%;
}

.ny_banner img {
    width: 100%;
    height: auto;
}

.main .sy_bg {
    width: 1346px;
    margin: 36px auto 70px;
    overflow: hidden;
}

.main .sy_bg .about {
    width: calc(50% - 9px);
    height: 750px;
    box-sizing: border-box;
    padding: 80px 45px;
    border-radius: 4px;
    background: url("../images/sy_pic1.png") no-repeat center;
    background-size: 100% 100%;
    margin-right: 18px;
    float: left;
}

.main .sy_bg .about h3 {
    font-size: 28px;
    line-height: 38px;
    color: #fff;
    margin-bottom: 15px;
}

.main .sy_bg .about p {
    font-size: 20px;
    line-height: 26px;
    color: #fff;
}

.main .sy_bg .resear {
    width: calc(50% - 9px);
    height: 365px;
    box-sizing: border-box;
    padding: 80px 45px;
    border-radius: 4px;
    background: url("../images/sy_pic2.png") no-repeat center;
    background-size: 100% 100%;
    margin-bottom: 20px;
    float: left;
}

.main .sy_bg .resear h3 {
    font-size: 28px;
    line-height: 38px;
    color: #fff;
    margin-bottom: 15px;
}

.main .sy_bg .resear p {
    font-size: 20px;
    line-height: 26px;
    color: #fff;
}

.main .sy_bg .service {
    width: calc(50% - 9px);
    height: 365px;
    box-sizing: border-box;
    padding: 80px 45px;
    border-radius: 4px;
    background: url("../images/sy_pic3.png") no-repeat center;
    background-size: 100% 100%;
    float: left;
}

.main .sy_bg .service h3 {
    font-size: 28px;
    line-height: 38px;
    color: #fff;
    margin-bottom: 15px;
}

.main .sy_bg .service p {
    font-size: 20px;
    line-height: 26px;
    color: #fff;
}

/*关于我们*/
.main .about_bg {
    width: 1346px;
    margin: 0 auto;
    padding: 70px 0;
}

.main .about_bg > h3 {
    font-size: 40px;
    line-height: 50px;
    color: #333;
    margin-bottom: 50px;
    text-align: center;
}

.main .about_bg .nr img {
    max-width: 100%;
    height: auto;
    margin: 0 auto;
}

.main .about_news {
    background: #F6F6F6;
    padding: 70px 0 50px;
}

.main .about_news > h3 {
    font-size: 40px;
    line-height: 50px;
    color: #333;
    margin-bottom: 30px;
    text-align: center;
}

.main .about_news .more {
    width: 140px;
    margin: 0 auto 50px;
    text-align: center;
    font-size: 12px;
    line-height: 30px;
    color: #fff;
    background: #959BAC;
    border-radius: 4px;
}

.main .about_news .more:hover {
    background: #007aff;
}

.main .about_news .list {
    width: 1346px;
    margin: 0 auto;
}

.main .about_news .list .nr {
    overflow: hidden;
    margin-bottom: 50px;
}

.main .about_news .list .nr:last-child {
    margin-bottom: 0;
}

.main .about_news .list .nr:hover {
    background: #fff;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.main .about_news .list .nr .pic {
    width: 500px;
    height: 300px;
    float: left;
    overflow: hidden;
}

.main .about_news .list .nr .pic img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 1s linear;
}

.main .about_news .list .nr:hover .pic img {
    transform: scale(1.2);
}

.main .about_news .list .nr .text {
    float: right;
    width: calc(100% - 540px);
    padding: 35px 35px 35px 0;
    box-sizing: border-box;
}

.main .about_news .list .nr .text h4 {
    font-size: 20px;
    line-height: 30px;
    color: #333;
    font-weight: bold;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-bottom: 15px;
}

.main .about_news .list .nr:hover .text h4 {
    color: #c39559;
}

.main .about_news .list .nr .text span {
    font-size: 14px;
    line-height: 24px;
    color: #999;
    margin-bottom: 25px;
    display: block;
}

.main .about_news .list .nr .text p {
    font-size: 16px;
    line-height: 26px;
    color: #999;
    margin-bottom: 25px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
    height: 52px;
}

.main .about_news .list .nr .text div {
    font-size: 12px;
    line-height: 30px;
    color: #959BAC;
    border: 1px solid #959BAC;
    display: inline-block;
    padding: 0 33px 0 13px;
    border-radius: 4px;
    background: url("../images/icon_more.png") no-repeat right 12px center;
    background-size: 12px auto;
}

.main .about_news .list .nr:hover .text div {
    color: #fff;
    border-color: #007aff;
    background: #007aff url("../images/icon_moreb.png") no-repeat right 12px center;
    background-size: 12px auto;
}

.main .about_video {
    width: 1346px;
    margin: 0 auto;
    padding: 70px 0 25px;
}

.main .about_video > h3 {
    font-size: 40px;
    line-height: 50px;
    color: #333;
    margin-bottom: 30px;
    text-align: center;
}

.main .about_video .more {
    width: 140px;
    margin: 0 auto 50px;
    text-align: center;
    font-size: 12px;
    line-height: 30px;
    color: #fff;
    background: #959BAC;
    border-radius: 4px;
}

.main .about_video .more:hover {
    background: #007aff;
}

.main .about_video .list {
    overflow: hidden;
}

.main .about_video .list .nr {
    width: 32%;
    margin-right: 2%;
    margin-bottom: 45px;
    float: left;
}

.main .about_video .list .nr:nth-child(3n) {
    margin-right: 0;
}

.main .about_video .list .nr .pic {
    width: 100%;
    position: relative;
    overflow: hidden;
}

.main .about_video .list .nr .pic img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.main .about_video .list .nr .pic div {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(51, 51, 51, 0.39) url("../images/icon_video.png") no-repeat center;
    background-size: 70px 70px;
}

.main .about_video .list .nr p {
    font-size: 16px;
    line-height: 46px;
    color: #333;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: bold;
}


/*新闻列表*/
.main .news_list {
    width: 1346px;
    margin: 40px auto 70px;
}

.main .news_list > h3 {
    font-size: 40px;
    line-height: 50px;
    color: #333;
    margin-bottom: 50px;
    text-align: center;
}

.main .news_list .list .nr {
    overflow: hidden;
    margin-bottom: 50px;
}

.main .news_list .list .nr:hover {
    background: #F6F6F6;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.main .news_list .list .nr .pic {
    width: 500px;
    height: 500px;
    float: left;
    overflow: hidden;
}

.main .news_list .list .nr .pic img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 1s linear;
}

.main .news_list .list .nr:hover .pic img {
    transform: scale(1.2);
}

.main .news_list .list .nr .text {
    float: right;
    width: calc(100% - 500px);
    padding: 35px;
    box-sizing: border-box;
}

.main .news_list .list .nr .text h4 {
    font-size: 20px;
    line-height: 30px;
    color: #333;
    font-weight: bold;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-bottom: 15px;
}

.main .news_list .list .nr:hover .text h4 {
    color: #c39559;
}

.main .news_list .list .nr .text span {
    font-size: 14px;
    line-height: 24px;
    color: #999;
    margin-bottom: 25px;
    display: block;
}

.main .news_list .list .nr .text p {
    font-size: 16px;
    line-height: 26px;
    color: #999;
    margin-bottom: 25px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
    height: 52px;
}

.main .news_list .list .nr .text div {
    font-size: 12px;
    line-height: 30px;
    color: #959BAC;
    border: 1px solid #959BAC;
    display: inline-block;
    padding: 0 33px 0 13px;
    border-radius: 4px;
    background: url("../images/icon_more.png") no-repeat right 12px center;
    background-size: 12px auto;
}

.main .news_list .list .nr:hover .text div {
    border-color: #007aff;
    background: #007aff url("../images/icon_moreb.png") no-repeat right 12px center;
    background-size: 12px auto;
    color: #fff;
}

.main .news_details {
    width: 1346px;
    margin: 60px auto 75px;
}

.main .news_details > h3 {
    font-size: 20px;
    line-height: 30px;
    color: #333;
    text-align: center;
    margin-bottom: 10px;
}

.main .news_details > p {
    font-size: 14px;
    line-height: 24px;
    color: #999;
    text-align: center;
    margin-bottom: 30px;
}

.main .news_details .nr img {
    max-width: 100%;
    height: auto;
    margin: 0 auto;
}

/*视频专区*/
.main .video_list {
    width: 1346px;
    margin: 40px auto 70px;
}

.main .video_list > h3 {
    font-size: 40px;
    line-height: 50px;
    color: #333;
    margin-bottom: 50px;
    text-align: center;
}

.main .video_list .list {
    overflow: hidden;
}

.main .video_list .list .nr {
    overflow: hidden;
    margin-bottom: 50px;
}

.main .video_list .list .nr:hover {
    background: #F6F6F6;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.main .video_list .list .nr .pic {
    width: 500px;
    height: 300px;
    float: left;
    overflow: hidden;
}

.main .video_list .list .nr .pic img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 1s linear;
}

.main .video_list .list .nr:hover .pic img {
    transform: scale(1.2);
}

.main .video_list .list .nr .text {
    float: right;
    width: calc(100% - 540px);
    padding: 35px 35px 35px 0;
    box-sizing: border-box;
}
.main .video_list .list .nr .text h4 {
    font-size: 20px;
    line-height: 30px;
    color: #333;
    font-weight: bold;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-bottom: 15px;
}
.main .video_list .list .nr:hover .text h4 {
    color: #c39559;
}
.main .video_list .list .nr .text span {
    font-size: 14px;
    line-height: 24px;
    color: #999;
    margin-bottom: 25px;
    display: block;
}
.main .video_list .list .nr .text p {
    font-size: 16px;
    line-height: 26px;
    color: #999;
    margin-bottom: 25px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
    height: 52px;
}
.main .video_list .list .nr .text div {
    font-size: 12px;
    line-height: 30px;
    color: #959BAC;
    border: 1px solid #959BAC;
    display: inline-block;
    padding: 0 33px 0 13px;
    border-radius: 4px;
    background: url("../images/icon_more.png") no-repeat right 12px center;
    background-size: 12px auto;
}
.main .video_list .list .nr:hover .text div {
    color: #fff;
    border-color: #007aff;
    background: #007aff url("../images/icon_moreb.png") no-repeat right 12px center;
    background-size: 12px auto;
}

.main .video_details {
    width: 1346px;
    margin: 60px auto 75px;
}

.main .video_details > h3 {
    font-size: 20px;
    line-height: 30px;
    color: #333;
    text-align: center;
    margin-bottom: 10px;
}

.main .video_details > p {
    font-size: 14px;
    line-height: 24px;
    color: #999;
    text-align: center;
    margin-bottom: 30px;
}

.main .video_details video {
    width: 100%;
    height: auto;
}


/*产品二级导航页*/
.main .product_nav {
    width: 1346px;
    margin: 40px auto 50px;
}

.main .product_nav h3 {
    font-size: 40px;
    line-height: 50px;
    color: #333;
    text-align: center;
    margin-bottom: 50px;
}

.main .product_nav .list {
    overflow: hidden;
}

.main .product_nav .list .nr {
    float: left;
    width: calc(25% - 15px);
    border: 1px solid #E0E0E0;
    margin-bottom: 20px;
    margin-right: 20px;
    box-sizing: border-box;
}

.main .product_nav .list .nr:nth-child(4n) {
    margin-right: 0;
}

.main .product_nav .list .nr div {
    width: 100%;
}

.main .product_nav .list .nr div img {
    width: 100%;
    height: auto;
}

.main .product_nav .list .nr p {
    font-size: 21px;
    line-height: 31px;
    color: #333;
    padding: 20px 10px 50px;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/*产品列表*/
.main .product_list {
    width: 1346px;
    margin: 40px auto;
}

.main .product_list > h3 {
    font-size: 36px;
    line-height: 130px;
    color: #333;
    text-align: center;
}

.main .product_list .nr div {
    width: 100%;
}

.main .product_list .nr div img {
    width: 100%;
    height: auto;
}

.main .product_list .nr p {
    font-size: 30px;
    line-height: 130px;
    color: #333;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/*产品详情*/
.main .product_details {
    width: 1346px;
    margin: 70px auto;
}

.main .product_details .product_nr > h3 {
    font-size: 36px;
    line-height: 46px;
    color: #333;
    text-align: center;
    margin-bottom: 28px;
}

.main .product_details .product_nr .prnav {
    margin-bottom: 28px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.main .product_details .product_nr .prnav p {
    width: 80px;
    text-align: center;
    font-size: 16px;
    line-height: 30px;
    color: #fff;
    background: #959BAC;
    border-radius: 4px;
    cursor: pointer;
    margin: 0 10px;
}

.main .product_details .product_nr .prnav p:hover {
    background: #007aff;
}

.main .product_details .product_nr .prnav a {
    width: 80px;
    text-align: center;
    font-size: 16px;
    line-height: 30px;
    color: #fff;
    background: #959BAC;
    border-radius: 4px;
    margin: 0 10px;
}

.main .product_details .product_nr .prnav a:hover {
    background: #007aff;
}

.main .product_details .product_nr .nr {
    margin-bottom: 50px;
}

.main .product_details .product_nr .nr img {
    max-width: 100%;
    height: auto;
    margin: 0 auto;
}

.main .product_details .parameter > h3 {
    font-size: 36px;
    line-height: 150px;
    color: #333;
    font-weight: bold;
    text-align: center;
    border-bottom: 1px solid #E4E4E4;
    margin-bottom: 22px;
}

.main .product_details .parameter .nr table {
    width: 100%;
    border-collapse: collapse;
}

.main .product_details .parameter .nr table tr {
    min-height: 58px;
    background: #FAFAFA;
}

.main .product_details .parameter .nr table tr:nth-child(2n) {
    background: #fff;
}

.main .product_details .parameter .nr table tr td {
    text-align: right;
    font-size: 20px;
    line-height: 30px;
    color: #333;
    padding: 10px 55px;
    width: 50%;
}

.main .product_details .parameter .nr table tr td:last-child {
    text-align: left;
}

.main .product_details .parameter .back {
    width: 50%;
    text-align: center;
    font-size: 20px;
    line-height: 40px;
    color: #fff;
    background: #959BAC;
    border-radius: 4px;
    margin: 30px auto 0;
}

.main .product_details .parameter .back:hover {
    background: #007aff;
}

/*研发制造*/
.main .research {
    padding: 60px 0 80px;
}

.main .research > h3 {
    font-size: 40px;
    line-height: 50px;
    color: #333;
    text-align: center;
    margin-bottom: 60px;
}

.main .research .nr {
    width: 1346px;
    margin: 0 auto;
}

.main .research .nr img {
    max-width: 100%;
    height: auto;
    margin: 0 auto;
}

.main .smart {
    padding: 70px 0 65px;
    background: #FAFAFA;
    margin-bottom: 75px;
}

.main .smart > h3 {
    font-size: 40px;
    line-height: 50px;
    color: #333;
    text-align: center;
    margin-bottom: 50px;
}

.main .smart .nr {
    width: 1346px;
    margin: 0 auto;
}

.main .smart .nr img {
    max-width: 100%;
    height: auto;
    margin: 0 auto;
}

/*服务支持*/
.main .content_bg {
    width: 1346px;
    margin: 0 auto;
    padding: 70px 0 75px;
}

.main .content_bg > h3 {
    font-size: 35px;
    line-height: 50px;
    color: #333;
    text-align: center;
    margin-bottom: 44px;
}

.main .content_bg .nr {
    overflow: hidden;
}

.main .content_bg .nr .content {
    float: left;
    width: 50%;
    height: 412px;
    background: #F2F2F2;
    padding: 50px 50px 60px;
    box-sizing: border-box;
}

.main .content_bg .nr .content h5 {
    font-size: 22px;
    line-height: 32px;
    color: #333;
    border-bottom: 1px solid #999;
    padding-bottom: 35px;
    margin-bottom: 35px;
    font-weight: bold;
}

.main .content_bg .nr .content p {
    font-size: 18px;
    line-height: 38px;
    color: #333;
}

.main .content_bg .nr .content h4 {
    font-size: 40px;
    line-height: 50px;
    color: #333;
    font-weight: bold;
    margin-top: 35px;
}

.main .content_bg .nr .content h6 {
    font-size: 18px;
    line-height: 38px;
    color: #333;
    margin-top: 20px;
}

.main .content_bg .nr .map {
    float: left;
    width: 50%;
}

.main .online {
    padding: 75px 0 700px;
    background: #fcfcfc url(../images/wd_bj.png) no-repeat center bottom;
    background-size: 100% auto;
    box-sizing: border-box;
}

.main .online > h3 {
    font-size: 35px;
    line-height: 50px;
    color: #333;
    text-align: center;
    margin-bottom: 44px;
}

.main .online .list {
    width: 1346px;
    margin: 0 auto 40px;
    overflow: hidden;
}

.main .online .list div {
    width: 32%;
    text-align: center;
    padding: 20px 0;
    background: #E12C23;
    border-radius: 4px;
    margin-right: 2%;
    float: left;
}

.main .online .list div:last-child {
    margin-right: 0;
}

.main .online .list div h4 {
    font-size: 30px;
    line-height: 40px;
    color: #fff;
    font-weight: bold;
    margin-bottom: 15px;
}

.main .online .list div p {
    font-size: 14px;
    line-height: 24px;
    color: #fff;
}

.main .online .nr {
    width: 1346px;
    margin: 0 auto;
    font-size: 18px;
    line-height: 36px;
    color: #333;
}

.main .video {
    width: 1346px;
    margin: 0 auto;
    padding: 70px 0 30px;
}

.main .video > h3 {
    font-size: 35px;
    line-height: 50px;
    color: #333;
    text-align: center;
    margin-bottom: 25px;
}

.main .video .more {
    width: 140px;
    margin: 0 auto 50px;
    text-align: center;
    font-size: 12px;
    line-height: 30px;
    color: #fff;
    background: #959BAC;
    border-radius: 4px;
}

.main .video .more:hover {
    background: #007aff;
}

.main .video .list {
    width: 1346px;
    margin: 0 auto;
}

.main .video .list .nr {
    overflow: hidden;
    margin-bottom: 50px;
}

.main .video .list .nr:last-child {
    margin-bottom: 0;
}

.main .video .list .nr:hover {
    background: #fff;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.main .video .list .nr .pic {
    width: 500px;
    height: 300px;
    float: left;
    overflow: hidden;
}

.main .video .list .nr .pic img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 1s linear;
}

.main .video .list .nr:hover .pic img {
    transform: scale(1.2);
}

.main .video .list .nr .text {
    float: right;
    width: calc(100% - 540px);
    padding: 35px 35px 35px 0;
    box-sizing: border-box;
}

.main .video .list .nr .text h4 {
    font-size: 20px;
    line-height: 30px;
    color: #333;
    font-weight: bold;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-bottom: 15px;
}

.main .video .list .nr:hover .text h4 {
    color: #c39559;
}

.main .video .list .nr .text span {
    font-size: 14px;
    line-height: 24px;
    color: #999;
    margin-bottom: 25px;
    display: block;
}

.main .video .list .nr .text p {
    font-size: 16px;
    line-height: 26px;
    color: #999;
    margin-bottom: 25px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
    height: 52px;
}

.main .video .list .nr .text div {
    font-size: 12px;
    line-height: 30px;
    color: #959BAC;
    border: 1px solid #959BAC;
    display: inline-block;
    padding: 0 33px 0 13px;
    border-radius: 4px;
    background: url("../images/icon_more.png") no-repeat right 12px center;
    background-size: 12px auto;
}

.main .video .list .nr:hover .text div {
    color: #fff;
    border-color: #007aff;
    background: #007aff url("../images/icon_moreb.png") no-repeat right 12px center;
    background-size: 12px auto;
}

/*搜索*/
.main .search_list {
    width: 1346px;
    margin: 40px auto;
    min-height: 300px;
}

.main .search_list > h3 {
    font-size: 36px;
    line-height: 130px;
    color: #333;
    text-align: center;
}

.main .search_list .wsj {
    font-size: 20px;
    line-height: 130px;
    color: #333;
    text-align: center;
}

.main .search_list .nr div {
    width: 100%;
}

.main .search_list .nr div img {
    width: 100%;
    height: auto;
}

.main .search_list .nr p {
    font-size: 30px;
    line-height: 130px;
    color: #333;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;

}


/*面包屑*/
.bread {
    border-bottom: 1px solid #E4E4E4;
}

.bread div {
    width: 1346px;
    margin: 0 auto;
}

.bread div a {
    font-size: 14px;
    line-height: 70px;
    color: #999;
    display: inline-block;
}

.bread div span {
    font-size: 14px;
    line-height: 70px;
    color: #999;
    display: inline-block;
    margin: 0 5px;
}

.bread div p {
    font-size: 14px;
    line-height: 70px;
    color: #999;
    display: inline-block;
}


/*页码*/
.pager_bg {
    width: 100%;
    text-align: center;
}

.pager_bg .pagination a {
    width: auto !important;
    min-width: 33px;
    padding: 0 10px;
    box-sizing: border-box;
}

.pager_bg .pagination p {
    width: auto !important;
    min-width: 33px;
    padding: 0 10px;
    box-sizing: border-box;
}

.pageren_bg {
    width: 100%;
    text-align: center;
}

.pageren_bg .pagination a {
    width: auto !important;
    min-width: 33px;
    padding: 0 10px;
    box-sizing: border-box;
}

.pageren_bg .pagination p {
    width: auto !important;
    min-width: 33px;
    padding: 0 10px;
    box-sizing: border-box;
}

.pagination {
    text-align: center;
}


/*翻页*/
.page_next .textprenext {
    overflow: hidden;
    margin-top: 20px;
}

.page_next .textprenext p {
    float: left;
    font-size: 20px;
    line-height: 30px;
    color: #333;
}

.page_next .textprenext a {
    float: left;
    font-size: 20px;
    line-height: 30px;
    color: #333;
    width: calc(100% - 80px);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.page_next .textprenext span {
    float: left;
    font-size: 20px;
    line-height: 30px;
    color: #999;
}


/*底部*/
.foot_bg {
    width: 100%;
    background: #222;
}

.foot_bg .foot_sb {
    width: 1346px;
    margin: 0 auto;
}

.foot_bg .foot_sb .nr {
    padding: 80px 0 20px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.foot_bg .foot_sb .nr .foot_nav {
    width: 60%;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.foot_bg .foot_sb .nr .foot_nav li h3 {
    font-size: 20px;
    line-height: 30px;
    color: #fff;
    margin-bottom: 15px;
}

.foot_bg .foot_sb .nr .foot_nav li a {
    font-size: 16px;
    line-height: 26px;
    color: #9FA3A6;
}

.foot_bg .foot_sb .nr .xx {
    display: flex;
    flex-wrap: wrap;
    flex-direction: column;
    align-items: flex-end;
}

.foot_bg .foot_sb .nr .xx > p {
    font-size: 16px;
    line-height: 26px;
    color: #fff;
    text-align: right;
    width: 300px;
}

.foot_bg .foot_sb .nr .xx h4 {
    font-size: 30px;
    line-height: 40px;
    color: #fff;
    text-align: right;
}

.foot_bg .foot_sb .nr .xx .ma {
    overflow: hidden;
    margin-top: 10px;
}

.foot_bg .foot_sb .nr .xx .ma div {
    float: right;
    text-align: center;
    margin-left: 12px;
}

.foot_bg .foot_sb .nr .xx .ma div img {
    width: 75px;
    height: auto;
    margin: 0 auto;
}

.foot_bg .foot_sb .nr .xx .ma div p {
    font-size: 16px;
    line-height: 20px;
    color: #fff;
    width: 150px;
    margin-top: 20px;
}

.foot_bg .foot_sb .record {
    text-align: center;
}

.foot_bg .foot_sb .record a {
    display: inline-block;
    font-size: 16px;
    line-height: 50px;
    color: #fff;
}

.foot_bg .foot_sb .record p {
    display: inline-block;
    font-size: 16px;
    line-height: 50px;
    color: #fff;
}

.foot_bg .foot_sb .link {
    display: flex;
    flex-wrap: wrap;
    border-bottom: 1px solid #707070;
    padding-bottom: 20px;
}

.foot_bg .foot_sb .link p {
    font-size: 18px;
    line-height: 30px;
    color: #fff;
}

.foot_bg .foot_sb .link a {
    font-size: 18px;
    line-height: 30px;
    color: #fff;
    margin: 0 20px;
}

.foot_bg .foot_sb .link a:hover {
    color: #E60012;
}

@media (min-width: 1360px) {
    .yd_heard {
        display: none;
    }

    .dropDiv {
        display: none !important;
    }
}

@media (min-width: 0px) and (max-width: 1360px) {
    .header {
        display: none;
    }

    .search_input {
        display: none;
    }

    .yd_heard {
        position: relative;
        height: 64px;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: center;
    }

    .yd_heard .logo {
        height: 100%;
    }

    .yd_heard .logo img {
        width: auto;
        height: 100%;
    }

    .yd_heard .yd_nav_ph {
        position: absolute;
        right: 5%;
        top: 0;
        cursor: pointer;
        height: 64px;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: center;
        width: 50px;
    }

    .yd_nav_ph div {
        display: block;
        width: 16px;
        height: 2px;
        background: #666;
        transition: all 0.4s;
        position: relative;
    }

    .yd_nav_ph div:before {
        width: 20px;
        height: 2px;
        position: absolute;
        content: "";
        top: -7px;
        background: #666;
    }

    .yd_nav_ph div:after {
        width: 20px;
        height: 2px;
        position: absolute;
        content: "";
        top: 7px;
        background: #666;
    }

    .yd_nav_ph.active div {
        background: transparent;
    }

    .yd_nav_ph.active div:before {
        transform: translateY(7px) rotate(45deg);
    }

    .yd_nav_ph.active div:after {
        transform: translateY(-7px) rotate(-45deg);
    }


    /*下拉菜单*/
    .dropDiv {
        position: fixed;
        top: 64px;
        right: 0;
        bottom: 0;
        left: 0;
        background: #fff;
        overflow-y: auto;
        padding-bottom: 50px;
        z-index: 99;
        display: none;
    }

    .dropDiv ul {
        padding: 0px 40px;
    }

    .dropDiv ul li {
        border-bottom: 1px solid #ccc;
    }

    .dropDiv ul li a {
        color: #333;
        font-size: 16px;
        line-height: 36px;
        display: inline-block;
    }

    .dropDiv ul li .licont {
        display: none;
    }

    .dropDiv ul li .licont .nav2 p {
        padding-left: 10%;
        line-height: 30px;
        border-top: 1px solid #ccc;
    }

    .dropDiv ul li .licont .nav2 div {
        padding-left: 20%;
        line-height: 30px;
        border-top: 1px solid #ccc;
        display: none;
    }

    .dropDiv ul li .licont .nav2 div a {
        display: block;
    }

    .dropDiv ul li p {
        background: url(../images/navicon.png) no-repeat 95% center;
        background-size: auto 16px;
    }

    .dropDiv ul li p.showlicont {
        background: url(../images/navicon2.png) no-repeat 95% center;
        background-size: auto 9px;
    }

    .dropDiv ul li .licont .nav2 p.nolist {
        background: none;
    }

    .dropDiv ul li .licont .nav2 p.nolist a {
        display: block;
    }

    .dropDiv .language {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: center;
        margin: 20px auto 0;
    }

    .dropDiv .language a {
        width: 34px;
        font-size: 14px;
        line-height: 34px;
        text-align: center;
    }

    .dropDiv .yd_search .nr {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        width: 80%;
        margin: 20px auto 0;
        border: 1px solid #F2F2F2;
        border-radius: 100px;
        box-sizing: border-box;
        padding: 0 30px;
    }

    .dropDiv .yd_search .nr .search_btn {
        width: 20px;
        height: 20px;
        margin-right: 15px;
        background: url("../images/search_b.png") no-repeat center;
        background-size: 100% 100%;
    }

    .dropDiv .yd_search .nr .search_pro {
        font-size: 14px;
        line-height: 50px;
        color: #999;
        width: calc(100% - 35px);
    }


    .main .sy_bg {
        width: 100%;
        padding: 0 20px;
        box-sizing: border-box;
    }

    .main .sy_bg .about {
        background-size: 100% 100%;
    }

    .main .sy_bg .resear {
        background-size: 100% 100%;
    }

    .main .sy_bg .service {
        background-size: 100% 100%;
    }


    .bread div {
        width: 100%;
        padding: 0 20px;
        box-sizing: border-box;
    }


    .main .about_bg {
        width: 100%;
        padding: 50px 20px;
        box-sizing: border-box;
    }

    .main .about_news {
        padding: 70px 20px 50px;
    }

    .main .about_news .list {
        width: 100%;
    }

    .main .about_video {
        width: 100%;
        padding: 70px 20px 25px;
        box-sizing: border-box;
    }

    .main .news_list {
        width: 100%;
        padding: 0 20px;
        box-sizing: border-box;
    }

    .main .news_details {
        width: 100%;
        padding: 0 20px;
        box-sizing: border-box;
    }


    .main .product_nav {
        width: 100%;
        padding: 0 20px;
        box-sizing: border-box;
    }

    .main .product_list {
        width: 100%;
        padding: 0 20px;
        box-sizing: border-box;
    }

    .main .product_details {
        width: 100%;
        padding: 0 20px;
        box-sizing: border-box;
    }

    .main .video_list {
        width: 100%;
        padding: 0 20px;
        box-sizing: border-box;
    }

    .main .video_details {
        width: 100%;
        padding: 0 20px;
        box-sizing: border-box;
    }

    .main .about_video {
        width: 100%;
        padding: 70px 20px 25px;
        box-sizing: border-box;
    }

    .main .research {
        padding: 60px 20px 80px;
    }

    .main .research .nr {
        width: 100%;
    }

    .main .smart {
        padding: 70px 20px 65px;
    }

    .main .smart .nr {
        width: 100%;
    }

    .main .content_bg {
        width: 100%;
        padding: 70px 20px 75px;
        box-sizing: border-box;
    }


    .main .online {
        padding: 75px 20px 700px;
        box-sizing: border-box;
    }

    .main .online .list {
        width: 100%;
    }

    .main .online .nr {
        width: 100%;
    }

    .main .video {
        width: 100%;
        padding: 70px 20px 30px;
        box-sizing: border-box;
    }

    .main .video .list {
        width: 100%;
    }

    .main .search_list {
        width: 100%;
        padding: 0 20px;
        box-sizing: border-box;
    }


    .foot_bg .foot_sb {
        width: 100%;
        padding: 0 20px;
        box-sizing: border-box;
    }
}

@media (min-width: 0px) and (max-width: 750px) {
    .main .sy_bg {
        margin: 20px auto;
    }

    .main .sy_bg .about {
        width: 100%;
        height: 385px;
        float: none;
        margin-right: 0;
        margin-bottom: 20px;
    }

    .main .sy_bg .resear {
        width: 100%;
        height: 385px;
        float: none;
        margin-right: 0;
        margin-bottom: 20px;
    }

    .main .sy_bg .service {
        width: 100%;
        height: 385px;
        float: none;
        margin-right: 0;
    }

    .main .about_bg {
        padding: 30px 20px;
    }

    .main .about_news {
        padding: 30px 20px;
    }

    .main .about_news .list .nr {
        background: #fff;
        margin-bottom: 30px;
    }

    .main .about_news .list .nr .pic {
        width: 100%;
        float: none;
    }

    .main .about_news .list .nr .text {
        width: 100%;
        padding: 20px;
        float: none;
    }

    .main .about_video {
        padding: 30px 20px;
    }

    .main .about_video .more {
        margin-bottom: 30px;
    }

    .main .about_video .list .nr {
        width: calc(50% - 10px);
        margin-right: 20px;
        margin-bottom: 20px;
    }

    .main .about_video .list .nr:nth-child(3n) {
        margin-right: 20px;
    }

    .main .about_video .list .nr:nth-child(2n) {
        margin-right: 0;
    }


    .main .news_list {
        margin: 30px auto;
    }

    .main .news_list > h3 {
        margin-bottom: 30px;
    }

    .main .news_list .list .nr {
        background: #F6F6F6;
        margin-bottom: 30px;
    }

    .main .news_list .list .nr .pic {
        width: 100%;
        height: auto;
        float: none;
    }

    .main .news_list .list .nr .text {
        width: 100%;
        padding: 20px;
        float: none;
    }

    .main .news_details {
        margin: 30px auto;
    }


    .main .video_list {
        margin: 30px auto;
    }

    .main .video_list > h3 {
        margin-bottom: 30px;
    }

    .main .video_list .list .nr {
        background: #F6F6F6;
        margin-bottom: 30px;
    }

    .main .video_list .list .nr .pic {
        width: 100%;
        height: auto;
        float: none;
    }

    .main .video_list .list .nr .text {
        width: 100%;
        padding: 20px;
        float: none;
    }


    .main .video_details {
        margin: 30px auto;
    }

    .main .product_nav {
        margin: 30px auto;
    }

    .main .product_nav h3 {
        margin-bottom: 30px;
        font-size: 28px;
        line-height: 38px;
    }

    .main .product_nav .list .nr {
        width: calc(50% - 10px);
    }

    .main .product_nav .list .nr:nth-child(2n) {
        margin-right: 0;
    }

    .main .product_list {
        margin: 30px auto;
    }

    .main .product_list > h3 {
        font-size: 28px;
        line-height: 100px;
    }

    .main .product_list p {
        font-size: 20px;
        line-height: 60px;
    }

    .main .product_details {
        margin: 30px auto;
    }

    .main .product_details .product_nr > h3 {
        font-size: 24px;
        line-height: 50px;
        margin-bottom: 20px;
    }

    .main .product_details .product_nr .nr {
        margin-bottom: 20px;
    }

    .main .product_details .parameter > h3 {
        font-size: 24px;
        line-height: 50px;
    }

    .main .product_details .parameter .nr table tr td {
        padding: 20px;
    }


    .main .research {
        padding: 30px 20px;
    }

    .main .research > h3 {
        font-size: 28px;
        line-height: 38px;
        margin-bottom: 30px;
    }

    .main .smart {
        padding: 30px 20px;
        margin-bottom: 30px;
    }

    .main .smart > h3 {
        font-size: 28px;
        line-height: 38px;
        margin-bottom: 30px;
    }

    .main .content_bg {
        padding: 30px 20px;
    }

    .main .content_bg > h3 {
        font-size: 28px;
        line-height: 38px;
        margin-bottom: 30px;
    }

    .main .content_bg .nr .content {
        width: 100%;
        float: none;
        padding: 30px 20px;
    }

    .main .content_bg .nr .content h5 {
        font-size: 20px;
        line-height: 30px;
        padding-bottom: 25px;
        margin-bottom: 25px;
    }

    .main .content_bg .nr .content h4 {
        font-size: 30px;
        line-height: 40px;
        margin-top: 20px;
    }

    .main .content_bg .nr .map {
        width: 100%;
        float: none;
    }

    .main .online {
        padding: 30px 20px 160px;
    }

    .main .online > h3 {
        font-size: 28px;
        line-height: 38px;
        margin-bottom: 30px;
    }

    .main .online .list {
        margin-bottom: 0;
    }

    .main .online .list div {
        width: 100%;
        margin-right: 0;
        margin-bottom: 20px;
    }

    .main .video {
        padding: 30px 20px;
    }

    .main .video > h3 {
        font-size: 28px;
        line-height: 38px;
        margin-bottom: 20px;
    }

    .main .video .more {
        margin-bottom: 20px;
    }

    .main .video .list .nr .pic {
        width: 100%;
        float: none;
    }

    .main .video .list .nr .text {
        width: 100%;
        padding: 20px;
        float: none;
    }


    .main .search_list {
        margin: 30px auto;
    }

    .main .search_list > h3 {
        font-size: 28px;
        line-height: 100px;
    }



    .main .search_list p {
        font-size: 20px;
        line-height: 60px;
    }


    .foot_bg .foot_sb .nr .foot_nav {
        width: 100%;
    }

    .foot_bg .foot_sb .nr .foot_nav li {
        margin-bottom: 20px;
    }

    .foot_bg .foot_sb .nr .xx {
        width: 100%;
        align-items: center;
    }

    .foot_bg .foot_sb .nr .xx > p {
        text-align: center;
    }

    .foot_bg .foot_sb .nr .xx h4 {
        text-align: center;
    }

    .foot_bg .foot_sb .nr .xx .ma {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-around;
    }

    .foot_bg .foot_sb .nr .xx .ma div {
        float: none;
        margin-left: 0;
    }

    .foot_bg .foot_sb .link {
        display: block;
    }

    .foot_bg .foot_sb .link a {
        margin: 10px 0;
    }

    .foot_bg .foot_sb .record a {
        line-height: 32px;
    }

    .foot_bg .foot_sb .record p {
        line-height: 32px;
    }
}