/* 通用css */
.substance {
    width: 1200px;
    margin: 0 auto;
}

h1.title {
    font-size: 20px;
    margin-bottom: 24px;
    color: #333;
}

em.subtitle {
    display: block;
    margin-bottom: 30px;
    font-size: 14px;
    color: #999;
}

em.subtitle span {
    margin-right: 10px;
}

em.subtitle span i {
    margin-right: 5px;
}

.texts {
    font-size: 14px;
    color: #686868;
    line-height: 24px;
}

h2.theme {
    color: #fff;
    border-bottom: 1px solid #848589;
    font-size: 24px;
    font-weight: 400;
}

h2.type {
    font-size: 20px;
    margin-bottom: 5px;
}

.subject h2 {
    padding: 20px 0;
    font-size: 20px;
    padding-left: 30px;
    position: relative;
}

.subject h2:before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    background-color: #fff;
    -moz-border-radius: 100%;
    -webkit-border-radius: 100%;
    border-radius: 100%;
    border: 5px solid #e0001d;
}

.single {
    padding: 50px 0;
    padding-bottom: 50px;
    font-size: 14px;
    color: #676767;
}

.back_main {
    background-color: #f9f9f9;
}

.back_main .subject,
.back_main ul.menu,
.back_main .category_search {
    background-color: #fff;
    padding: 0 20px;
}

.back_main ul.menu {
    padding-bottom: 1px;
}

.back_main .category_search {
    padding-bottom: 60px;
}

.products_list,
.news_list,
.case_list,
.solution_main dl:nth-last-child(2) {
    border-bottom: 1px solid #ccc;
}

.solution .category_list,
.case .category_list,
.vrlist .category_list {
    width: 215px;
}

.vrlist .category_main,
.case .category_main {
    margin-right: 55px;
}

.main-banner {
    height: 420px;
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover;
    align-items: flex-end;
}

.main-banner .crumbs {
    justify-content: flex-end;
    padding-bottom: 30px;
    color: #fff;
}

.main-banner .crumbs a {
    color: #fff;
}

.main-banner .crumbs a:last-child {
    color: #d01c1f;
}

.main-banner .crumbs span {
    font-family: '宋体';
    margin: 0 5px;
}

.main {
    padding-top: 50px;
}

/* .detail{display:block;} */
.detail a {
    border: 1px solid #cf1b1c;
    color: #cf1b1c;
    padding: 8px 18px;
    font-size: 16px;
    display: inline-block;
}

.detail a:hover {
    background-color: #cf1b1c;
    color: #fff !important;
}




/* 分边 */
.category {
    justify-content: space-between;
    overflow: hidden;
}

.category_main {
    flex: 1 1 0%;
}

/* .category_list{border-left:1px solid #ccc;} */
ul.septum {
    margin-left: 50px;
    padding-top: 60px;
    position: relative;
}

ul.septum:before {
    content: '';
    position: absolute;
    width: 1px;
    height: 924px;
    background-color: #ccc;
    top: 0;
    left: -50px;
}

.spacer {
    border-right: 1px solid #ccc;
}

/*- 横向子栏目 -*/
.subnav {
    margin-bottom: 5px;
}

.subnav ul {
    position: relative;
}

.subnav ul:after {
    content: '';
    position: absolute;
    width: 100%;
    height: 1px;
    background-color: #d6d6d6;
    left: 0;
    bottom: 0;
}

.subnav ul li {
    flex: 1 1 0%;
    position: relative;
}

.subnav ul li a {
    display: block;
    text-align: center;
    line-height: 40px;
    font-size: 20px;
    font-weight: 700;
}

.subnav ul li.active:after {
    content: '';
    height: 7px;
    width: 100%;
    position: absolute;
    left: 0;
    bottom: 0;
    background-color: #cf1b1c;
}

/*- 竖向子栏目 -*/
.category_list ul li {
    margin-bottom: 55px;
}

.category_list ul li a {
    font-size: 18px;
    font-weight: 700;
}

.category_list ul li a:hover,
.category_list ul li.active a {
    color: #ce1b1e;
    border-bottom: 2px solid #ce1b1e;
}

/* - 单图片 -  */
.list_one li {
    margin-bottom: 30px;
}

.list_one li a {
    position: relative;
    width: 340px;
    height: 130px;

}

.list_one li img {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
}

.list_one li .text {
    position: relative;
    width: 100%;
}

.list_one li .text h3 {
    text-align: center;
    font-size: 16px;
    color: #fff;
    width: 100%;
    position: absolute;
    left: 0;
    bottom: 0;
    padding: 10px 0;
}

.list_one li .text span {
    position: absolute;
    top: 0;
    z-index: -1;
    width: 100%;
    height: 100%;
    background-color: #000;
    display: block;
    filter: alpha(opacity=50);
    -moz-opacity: 0.5;
    -khtml-opacity: 0.5;
    opacity: 0.5;
}

/* - 单产品 -  */
.list_two li {
    margin-bottom: 30px;
    width: 340px;
    height: 259px;
}

.list_two li .imgs {
    width: 340px;
    height: 208px;
}

.list_two li .imgs img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.list_two li .text {
    padding: 0 20px;
}

.list_two li .text h3 {
    font-size: 16px;
    line-height: 24px;
    font-weight: 400;
}

/* - 一排3图 - */
.grids ul.grid {
    grid-template-columns: repeat(3, auto);
    grid-gap: 20px;
    border-bottom: 1px solid #ccc;
    padding-bottom: 95px;
}

.grids ul.grid li {
    position: relative;
    height: 0;
    padding-bottom: 385px;
}

.grids ul.grid li img {
    border: 1px solid #e0e0e0;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translateY(-50%) translateX(-50%);
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.grids ul.grid li span {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    margin: 1px;
    background-color: #000;
    filter: alpha(opacity=90);
    -moz-opacity: 0.9;
    -khtml-opacity: 0.9;
    opacity: 0.9;
}

.grids ul.grid li .box {
    position: absolute;
    bottom: 0;
    left: 0;
    z-index: 1;
    color: #fff;
    padding: 12px;
}

.grids ul.grid li h3 {
    font-size: 16px;
}

.grids ul.grid li p {
    font-size: 14px;
}


/* 关于我们 */
.about {
    margin-left: 40px;
    margin-right: 300px;
}

.about dl {
    margin-top: 75px;
    border-bottom: 1px solid #d8d8d8;
    padding-bottom: 20px;
}

.about dt {
    flex: 1 1 0%;
    justify-content: center;
    color: #cf1b1c;
    font-size: 75px;
    font-weight: 700;
}

.about dt img {
    width: 72px;
    height: 72px;
}

.about dd {
    flex: 3 1 0%;
}

h3.title {
    font-size: 30px;
    font-weight: 700;
    margin-bottom: 28px;
    color: #333;
}

dd .text,
dd .text p {
    line-height: 24px;
    margin-bottom: 20px;
    font-size: 14px;
    color: #686868
}

.history li {
    margin-bottom: 36px;
    position: relative;
    padding-left: 40px;
}

.history li h3 {
    font-size: 18px;
    color: #ccc;
}

.history li p {
    font-size: 14px;
    color: #686868;
}

.history li:before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 20px;
    height: 20px;
    background-color: #fff;
    -moz-border-radius: 100%;
    -webkit-border-radius: 100%;
    border-radius: 100%;
    border: 5px solid #d11a1c;
}

.history li h3:hover,
.history li h3.cur {
    color: #cf1b1c;
}

.history_more {
    margin-top: 45px;
    margin-bottom: 65px;
}

.history_more a {
    flex: 2 1 0%;
    border: 1px solid #ccc;
    line-height: 42px;
    font-size: 14px;
    text-align: center;
}

.history_more a:hover {
    background-color: #d11a1c;
    color: #fff;
    border: 1px solid #d11a1c;
}

.history_more span {
    flex: 1 1 0%
}

.page {
    padding: 50px 0 180px;
}

.page .details,
.page .details p {
    font-size: 14px;
    margin-bottom: 20px;
    color: #686868;
}

.advertising dl {
    margin-top: 80px;
    padding-bottom: 80px;
    border-bottom: 1px solid #ccc;
}

.advertising dl dt,
.advertising dl dd {
    width: 50%;
}

.advertising dl dt {
    margin-left: 10%;
}

.advertising dl dt .imgs {
    flex: 2 1 0%;
}

.advertising dl dt .imgs img {
    width: 100%;
}

.advertising dl dt .time {
    flex: 1 1 0%;
    align-items: center;
}

.advertising dl dt .time .box {
    margin-left: 45px;
}

.advertising dl dt .time .box b {
    display: block;
    font-size: 22px;
    font-weight: 700;
    color: #333;
}

.advertising dl dt .time .box p {
    font-size: 16px;
    color: #9b9b9b;
}

.advertising dl dd {
    align-items: center;
}

.advertising dl dd h3 {
    font-size: 16px;
    margin-bottom: 20px;
    color: #333;
}

.advertising dl dd p {
    font-size: 14px;
    margin-bottom: 60px;
    color: #686868;
}

.advertising dl dd .detail {
    display: block;
}

.advertising dl dd .detail a {
    border: 1px solid #cf1b1c;
    color: #cf1b1c;
    padding: 8px 18px;
    font-size: 16px;
    display: inline-block;
}

.cert_istop {
    border-bottom: 1px solid #d6d6d6;
    padding: 50px 0;
}

.cert_istop dl {
    padding: 30px 0;
    justify-content: space-between;
}

.cert_istop dt {
    flex: 1 1 0%
}

.cert_istop dt .imgs {
    width: 553px;
    height: 350px;
    margin-right: 60px;
}

.cert_istop dt .imgs img {
    width: 100%;
    border: 3px solid #e0e0e0;
    -moz-border-radius: 3px;
    -webkit-border-radius: 3px;
    border-radius: 3px;
}

.cert_istop dd {
    flex: 1 1 25%;
    align-items: center;
}

.cert_istop dd h3 {
    font-size: 16px;
    margin-bottom: 20px;
    color: #333;
}

.cert_istop dd p {
    font-size: 14px;
    margin-bottom: 60px;
    color: #686868
}

.cert_list ul {
    grid-template-columns: repeat(6, auto);
    grid-gap: 4rem;
    margin-top: 70px;
}

.cert_list li a {
    display: block;
    border: 1px solid #e0e0e0;
}

.cert_list li a:before {
    content: '';
    display: inline-block;
    height: 100%;
    vertical-align: middle;
}

.cert_list li a img {
    max-height: 100%;
    max-width: 100%;
    display: inline-block;
    vertical-align: middle;
}




/* 产品页 */
ul.menu {
    padding: 0;
    margin: 0;
    width: 324px;
}

ul.menu>li {
    margin-bottom: 20px;
}

ul.menu>li a {
    padding: 10px 8px;
    display: block;
    font-size: 14px;
}

ul.menu>li a {
    padding: 10px 8px;
    display: block;
    font-size: 14px;
    flex: 1 1 0%;
    transition: all .5s;
    position: relative;
}

ul.menu>li a.faicos {
    padding-left: 40px;
}

ul.menu>li a.faicos:before {
    content: '';
    position: absolute;
    width: 25px;
    height: 25px;
    top: 50%;
    left: 10px;
    transform: translateY(-50%);
    background-repeat: no-repeat;
    background-size: 90%;
    background-position: center center;
}

ul.menu>li:hover .title a,
ul.menu>li:hover .arrow,
ul.menu>li.active .title a,
ul.menu>li.active .arrow,
ul.menu>li.active .arrow:after {
    background-color: #cf1b1c;
    color: #fff;
}

ul.menu>li .title {
    border: 1px solid #cbcbcb;
    transition: all .5s;
}

ul.menu>li .title .ico1:before {
    background-image: url(../images/ico_01.png);
}

ul.menu>li .title .ico2:before {
    background-image: url(../images/ico_02.png);
}

ul.menu>li .title .ico3:before {
    background-image: url(../images/ico_03.png);
}

ul.menu>li .title .ico4:before {
    background-image: url(../images/ico_04.png);
}

ul.menu>li .title .ico5:before {
    background-image: url(../images/ico_05.png);
}

ul.menu>li .title .ico6:before {
    background-image: url(../images/ico_06.png);
}

ul.menu>li .title .ico7:before {
    background-image: url(../images/ico_07.png);
}

ul.menu>li .title .ico8:before {
    background-image: url(../images/ico_08.png);
}

ul.menu>li .title .ico9:before {
    background-image: url(../images/ico_09.png);
}

ul.menu>li .title .ico10:before {
    background-image: url(../images/ico_10.png);
}

ul.menu>li .title .ico11:before {
    background-image: url(../images/ico_11.png);
}

ul.menu>li .title .ico12:before {
    background-image: url(../images/ico_12.png);
}

ul.menu>li .title .ico13:before {
    background-image: url(../images/ico_13.png);
}

ul.menu>li .title .ico14:before {
    background-image: url(../images/ico_14.png);
}

ul.menu>li .title .ico15:before {
    background-image: url(../images/ico_15.png);
}

ul.menu>li:hover .title .ico1:before,
ul.menu>li.active .title .ico1:before {
    background-image: url(../images/ico_01_w.png);
}

ul.menu>li:hover .title .ico2:before,
ul.menu>li.active .title .ico2:before {
    background-image: url(../images/ico_02_w.png);
}

ul.menu>li:hover .title .ico3:before,
ul.menu>li.active .title .ico3:before {
    background-image: url(../images/ico_03_w.png);
}

ul.menu>li:hover .title .ico4:before,
ul.menu>li.active .title .ico4:before {
    background-image: url(../images/ico_04_w.png);
}

ul.menu>li:hover .title .ico5:before,
ul.menu>li.active .title .ico5:before {
    background-image: url(../images/ico_05_w.png);
}

ul.menu>li:hover .title .ico6:before,
ul.menu>li.active .title .ico6:before {
    background-image: url(../images/ico_06_w.png);
}

ul.menu>li:hover .title .ico7:before,
ul.menu>li.active .title .ico7:before {
    background-image: url(../images/ico_07_w.png);
}

ul.menu>li:hover .title .ico8:before,
ul.menu>li.active .title .ico8:before {
    background-image: url(../images/ico_08_w.png);
}

ul.menu>li:hover .title .ico9:before,
ul.menu>li.active .title .ico9:before {
    background-image: url(../images/ico_09_w.png);
}

ul.menu>li:hover .title .ico10:before,
ul.menu>li.active .title .ico10:before {
    background-image: url(../images/ico_10_w.png);
}

ul.menu>li:hover .title .ico11:before,
ul.menu>li.active .title .ico11:before {
    background-image: url(../images/ico_11_w.png);
}

ul.menu>li:hover .title .ico12:before,
ul.menu>li.active .title .ico12:before {
    background-image: url(../images/ico_12_w.png);
}

ul.menu>li:hover .title .ico13:before,
ul.menu>li.active .title .ico13:before {
    background-image: url(../images/ico_13_w.png);
}

ul.menu>li:hover .title .ico14:before,
ul.menu>li.active .title .ico14:before {
    background-image: url(../images/ico_14_w.png);
}

ul.menu>li:hover .title .ico15:before,
ul.menu>li.active .title .ico15:before {
    background-image: url(../images/ico_15_w.png);
}

ul.menu>li.active .title,
ul.menu>li:hover .title {
    border: 0;
}

ul.menu .title .arrow {
    width: 39px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 28px;
    cursor: pointer;
    transition: all .5s;
}

ul.menu .title .arrow:after {
    margin-bottom: 2px;
    transition: all .5s;
    color: #cf1b1c;
}

ul.menu .title .down:after {
    content: '-';
}

ul.menu .title .up:after {
    content: '+';
    ;
}

ul.menu>li:hover .arrow:after {
    color: #fff;
    transition: all .5s;
}

ul.menu ul.subnav {
    display: none;
}

ul.menu ul.subnav li {
    position: relative;
    margin-bottom: 20px;
}

ul.menu ul.subnav li:first-child {
    margin-top: 20px;
}

ul.menu ul.subnav li:last-child {
    margin-bottom: 0;
}

ul.menu ul.subnav li a {
    border: 1px solid #cbcbcb;
    padding-left: 65px;
}

ul.menu ul.subnav li:hover a {
    background-color: #cf1b1c;
    color: #fff;
    border: 1px solid #cf1b1c;
}

ul.menu ul.subnav li:before {
    content: '';
    width: 1px;
    height: 100%;
    border-left: 1px dashed #333;
    position: absolute;
    top: 0;
    left: 45px;
}

ul.menu ul.subnav li:last-child:before {
    content: '';
    height: 50%;
    width: 1px;
    border-left: 1px dashed #333;
    position: absolute;
    top: 0;
    left: 45px;
}

ul.menu ul.subnav li:after {
    content: '';
    position: absolute;
    width: 15px;
    height: 1px;
    border-bottom: 1px dashed #333;
    top: 50%;
    transform: translateY(-50%);
    left: 46px;
}

.category_search input[type=text] {
    flex: 1 1 0%;
    padding: 12px 20px;
    border: 1px solid #ccc;
}

.category_search button[type=submit] {
    width: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #cf1b1c;
    border: 0;
    cursor: pointer;
}

.category_search i {
    font-size: 30px;
    color: #fff;
}

.products .category_main {
    margin-left: 40px;
}

.products .products_list li {
    width: 33.333%;
    padding-right: 35px;
    margin-bottom: 35px;
}

.products .products_list li .product_box {
    background-color: #fff;
}

.products .products_list li:nth-child(3n+3) {
    margin-right: 0;
}

.products .products_list li .imgs {
    height: 0;
    margin: 30px;
    padding-bottom: 56%;
    position: relative;
}

.products .products_list li .imgs img {
    position: absolute;
    max-width: 100%;
    max-height: 100%;
    top: 50%;
    left: 50%;
    transform: translateY(-50%) translateX(-50%);
}

.products .products_list li .text {
    padding: 0 15px 15px;
}

.products .products_list li .text em {
    color: #999;
    display: block;
    font-size: 14px;
}

.products .products_list li .text h3 {
    font-weight: 400;
    font-size: 16px;
    line-height: 24px;
    color: #333;
}

.products .products_list li a {
    margin-top: 10px;
    padding: 10px 40px 10px 20px;
    font-size: 14px;
    border: 1px solid #ccc;
    -moz-border-radius: 5px;
    -webkit-border-radius: 5px;
    border-radius: 5px;
    position: relative;
}

.products .products_list li a:before {
    content: '>';
    font-family: '宋体';
    position: absolute;
    top: 50%;
    right: 15px;
    transform: translateY(-50%) rotate(90deg);
    font-size: 18px;
}

.products .products_list li a:hover {
    background-color: #cf1b1c;
    color: #fff;
    border: 1px solid #cf1b1c;
}

/* 下载页 */
.download {
    margin: 70px 0 130px;
}

.download .listing {
    width: 322px;
    border-right: 1px solid #ccc;
}

.download .listing h2 {
    margin-bottom: 90px;
    font-weight: 400;
}

.download .listing .listing-list li {
    margin-bottom: 30px;
}

.download .listing .listing-list a {
    font-size: 25px;
    font-weight: 700;
}

.download .listing .listing-list li:hover a,
.download .listing .listing-list li.active a {
    color: #d01c1d;
}

.download .papers {
    flex: 1 1 0%;
    justify-content: flex-end;
}

.download .papers .box {
    width: 96.2%;
}

.download .papers .download-search {
    margin-left: 5px;
}

.download .papers .download-search form {
    display: inline-block;
    background-color: #cf1b1c;
    -moz-border-radius: 3px;
    -webkit-border-radius: 3px;
    border-radius: 3px;
    padding: 1px;
}

.download .papers .download-search input {
    width: 460px;
    line-height: 42px;
    border: 0;
    padding: 0 .8em;
}

.download .papers .download-search button {
    background-color: #cf1b1c;
    color: #fff;
    width: 65px;
    text-align: center;
    font-size: 16px;
    border: 0;
}

.download .papers .download-search p {
    font-size: 14px;
    padding: 20px 0;
    color: #333;
}

.download .papers .download-list li {
    margin-top: 30px;
}

.download .papers .download-list li .box {
    padding: 20px;
    border: 1px solid #e0e0e0;
    justify-content: space-between;
    align-items: center;
}

.download .papers .download-list li .box .download-logo {
    max-width: 125px;
    max-height: 60px;
}

.download .papers .download-list li .box .download-logo img {
    max-width: 90%;
    max-height: 90%;
}

.download .papers .download-list li .box .download-text {
    flex: 1 1 0%;
    margin-left: 18px;
    align-items: center;
}

.download .papers .download-list li .box .download-text h3 {
    font-size: 18px;
    color: #343434;
}

.download .papers .download-list li .box .download-text p {
    font-size: 14px;
    color: #9e9c9d;
}

.download .papers .download-list li .box .download-file {
    width: 60px;
    justify-content: center;
    align-items: center;
}

.download .papers .download-list li .box .download-file a {
    text-align: center;
}

.download .papers .download-list li .box .download-file i {
    font-size: 24px;
    color: #d71f03;
}

/* 新闻页 */
.news_first {
    padding: 45px 0;
    border-bottom: 1px solid #d6d6d6;
    margin-top: 20px;
}

.news_first dt {
    width: 610px;
    height: 410px;
}

.news_first dt img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news_first dd {
    flex: 1 1 0%;
    margin-left: 25px;
    align-items: center;
}

.news_first dd h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 20px;
}

.news_first dd p {
    font-size: 14px;
    color: #686868;
    line-height: 24px;
}

.news_first dd .detail {
    display: block;
    margin-top: 80px;
    margin-bottom: 30px;
}

.news_first dd .detail a {
    border: 1px solid #cf1b1c;
    color: #cf1b1c;
    padding: 8px 18px;
    font-size: 16px;
    display: inline-block;
}

.news_first dd .label {
    color: #999;
    font-size: 14px;
}

.news_first dd .label span {
    margin-right: 10px;
}

.news_first dd .label i {
    font-size: 17px;
    margin-right: 2px;
}

.news_list ul {
    margin-top: 55px;
    grid-template-columns: repeat(3, 485px);
    grid-gap: 33px;
}

/* .news_list ul li{width:485px;margin-bottom:33px;margin-right:14px!important;margin-right:33px;} */
.news_list ul li .imgs {
    width: 485px;
    height: 322px;
}

.news_list ul li .imgs img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

.news_list ul li:nth-child(3n+3) {
    margin-right: 0 !important;
    margin-right: 0;
}

.news_list ul li .text {
    padding: 30px 25px;
}

.news_list ul li .text h3 {
    font-size: 16px;
    color: #333;
    margin-bottom: 10px;
}

.news_list ul li .text p {
    font-size: 14px;
    color: #686868;
    margin-bottom: 40px;
}

.news_list ul li .detail {
    justify-content: space-between;
    align-items: center;
    color: #999;
    font-size: 16px;
}

.news_list ul li .detail a {
    border: 1px solid #cf1b1c;
    color: #cf1b1c;
    padding: 8px 18px;
    font-size: 16px;
    display: inline-block;
}

.news_list ul li .detail i {
    font-size: 20px;
}

.article {
    padding: 45px 65px;
}

.other_news {
    margin: 50px 0;
}

.other_news li {
    width: 350px;
    margin: 0 15px;
}

.other_news li .imgs {
    width: 350px;
    height: 232px;
}

.other_news li .imgs img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

.other_news li a {
    border: 1px solid #e0e0e0;
    display: block;
    overflow: hidden;
}

.other_news li h3 {
    text-align: center;
    padding: 20px 10px;
}

/* 解决方案 */
.solution,
.solution_detail {
    justify-content: space-between;
}

.solution_main {
    padding-right: 140px;
}

.solution_main dl {
    padding-bottom: 70px;
}

.solution_main dl:nth-last-child(2) {}

.solution_main dt {
    align-items: center;
}

.solution_main dt .imgs {
    width: 403px;
    height: 245px;
}

.solution_main dt .imgs img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

.solution_main dd {
    flex: 1 1 0%;
    margin: 0 40px;
    align-items: center;
}

.solution_main dd h3 {
    font-size: 20px;
    margin-bottom: 20px;
}

.solution_main dd p {
    font-size: 16px;
    color: #333;
}

.solution_main dd .detail {
    margin-top: 60px;
}

.solution_article {
    padding: 50px 45px;
}

.suggest {
    margin: 80px 0;
}

.suggest_list {
    flex-wrap: wrap;
}

.suggest_list li {
    width: 31%;
    margin: 1%;
}

.suggest_list li a {
    width: 100%;
    height: 194px;
    position: relative;

}

.suggest_list li img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    position: absolute;
    z-index: -1;
}

.suggest_list li h3 {
    padding: 10px;
    color: #fff;
    font-size: 16px;
    position: absolute;
    left: 0;
    bottom: 0;
}

/* 案例展示 */



/* 常见问题 */
.faq_list dl {
    padding: 50px 0;
    border-bottom: 1px solid #d6d6d6;
}

.faq_list dt {
    padding-left: 10%;
}

.faq_list dt .imgs {
    width: 600px;
    height: 375px;
}

.faq_list dt .imgs img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

.faq_list dd {
    flex: 1 1 0%;
    align-items: center;
}

.faq_list dd .box {
    margin: 0 135px;
    width: 100%;
    justify-content: space-between;
    align-items: center;
}

.faq_list dd .faq_title {
    flex: 1 1 0%;
    padding-right: .8em;
}

.faq_list dd .faq_title h3 {
    font-size: 20px;
    color: #323232;
    line-height: 36px;
}

.faq_list dd .faq_title p {
    font-size: 16px;
    color: #9b9b9b;
}

.faq_list dd .faq_more {
    width: 50px;
    height: 50px;
    border: 1px solid #d1d1d1;
    -moz-border-radius: 100%;
    -webkit-border-radius: 100%;
    border-radius: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.faq_list dd .faq_more i {
    font-size: 30px;
}

/* 操作视频 */
.video li {
    width: 25%;
    padding-right: 2em;
    margin-bottom: 2em;
    margin-right: 0;
}

.videolist {
    background-color: #242424;
    position: relative;
    padding-bottom: 75%;
}

.videolist .cover {
    position: absolute;
    width: 100%;
    height: 100%;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}

.videolist:hover {
    cursor: pointer;
}

.videolist span {
    position: absolute;
    bottom: 15px;
    left: 0;
    width: 100%;
    text-align: center;
    color: #fff;
    font-size: 15px;
}

.videolist:after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translateY(-50%) translateX(-50%);
    color: #fff;
    background-image: url(../images/play.svg);
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover;
    width: 50px;
    height: 50px;
}

.videos {
    display: none;
    position: fixed;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    z-index: 100;
}

.videos .layer {
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: #000;
    z-index: 101;
    filter: alpha(opacity=70);
    -moz-opacity: 0.7;
    -khtml-opacity: 0.7;
    opacity: 0.7;
}

.videos .video_box {
    width: 65%;
    height: 65%;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translateY(-50%) translateX(-50%);
    z-index: 102;
    background-color:
}

.videos .video_box #video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.videos .video_box h3 {
    background-color: #fff;
    font-size: 18px;
    color: #797979;
    padding: 15px;
}

.vclose {
    position: absolute;
    right: 1%;
    top: 1.1em;
    border-radius: 100%;
    cursor: pointer;
}

.vclose i {
    font-size: 24px;
}


/* VR视频 */
.vrlist {
    margin-top: 70px;
}

/* 联系页 */
.single table {
    width: 100%;
}

.single table tbody tr td {
    width: 50%;
    line-height: 40px;
}

/* 办事处 */
.office {
    background-repeat: no-repeat;
    background-position: bottom center;
    padding: 85px 0 435px;
    background-size: cover;
    position: relative;
}

.office .shade {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #fff;
    filter: alpha(opacity=50);
    -moz-opacity: 0.5;
    -khtml-opacity: 0.5;
    opacity: 0.5;
}

.office h2.title {
    color: #fff;
    margin-bottom: 70px;
}

.office .office_list {
    flex-wrap: wrap;
}

.office .office_list li {
    width: 25%;
    height: 128px;
    position: relative;
    color: #fff;
    padding-right: 30px;
    margin-bottom: 50px;
}

.office .office_list li:nth-child(4n+4) {
    margin-right: 0;
}

.office .office_list li .main_box {
    position: relative;
}

.office .office_list li .box {
    position: relative;
    z-index: 1;
    padding: 15px 10px;
}

.office .office_list li .box h3 {
    font-size: 20px;
}

.office .office_list li .box p {
    font-size: 16px;
    line-height: 24px;
    height: 48px;
}

.office .office_list li .box em {
    display: block;
    font-size: 16px;
}

.office .office_list li span {
    width: 100%;
    height: 100%;
    position: absolute;
    background-color: #000;
    filter: alpha(opacity=40);
    -moz-opacity: 0.4;
    -khtml-opacity: 0.4;
    opacity: 0.4;
    top: 0;
    left: 0;
}

/* 加入我们 */
.join {
    padding-top: 75px;
}

.join .category_list {
    border-left: 0;
    width: 315px;
}

.join_search {
    flex-wrap: wrap;
    position: relative;
    justify-content: space-between;
    margin-bottom: 35px;
}

.join_search .join_input {
    width: 100%;
    margin-bottom: 15px;
}

.join_search input[type=text] {
    width: 100%;
    border: 1px solid #ccc;
    padding: 18px;
    font-size: 14px;
    -moz-border-radius: 5px;
    -webkit-border-radius: 5px;
    border-radius: 5px;
    color: #cbcbcb;
}

.join_search button[type=submit] {
    position: absolute;
    top: 5px;
    right: 5px;
    background-color: transparent;
    border: 0;
    padding: 15px;
    cursor: pointer;
}

.join_search button[type=submit] i {
    font-size: 16px;
}

.join_search .join_select {
    width: 48%;
}

.join_search select {
    width: 100%;
    border: 1px solid #ccc;
    padding: 15px;
    font-size: 14px;
    -moz-border-radius: 5px;
    -webkit-border-radius: 5px;
    border-radius: 5px;
    background-color: transparent;
    color: #cbcbcb;
}

.join_illust {
    padding: 20px 15px;
    background-color: #f1f1f1;
    color: #a0a0a0;
    line-height: 24px;
    font-size: 14px;
}

.join .category_main {
    margin-left: 90px;
}

.join_list .join_title {
    border-bottom: 1px solid #d5d5d5;
}

.join_title li {
    font-size: 24px;
    width: 22.5%;
}

.join_title li.time {
    flex: 1 1 0%;
}

.join_title ul li {
    padding: 20px 0 35px;
    color: #999;
    font-size: 16px;
}

.join_title ul li.time {
    position: relative;
}

.join_title ul {
    cursor: pointer
}

.join_title ul li.time .arrow:before {
    content: '>';
    font-family: '宋体';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 24px;
    transition: transform 0.5s ease-in-out;
}

.join_title ul li.time .arrow.up:before {
    transform: rotate(90deg);
}

.join_title ul li.time .arrow.down:before {
    transform: rotate(-90deg);
}

.join_menu {
    display: none;
    padding: 20px 15px;
    font-size: 14px;
}

.join_menu h4 {
    color: #666;
    line-height: 50px;
}

.wapnav {
    background-color: #ededed;
    padding-bottom: 1px;
}

.expmenu {
    position: relative;
    cursor: pointer;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    background-color: #fff;
    padding: .875em 0;
}

.expmenu i {
    font-size: 1.8em;
}

.lismenu {
    display: none;
}

.lismenu li {
    margin-bottom: 1px;
    background-color: #fff;
}

.lismenu li:last-child {
    margin-bottom: 0;
}

.lismenu li a {
    padding: 0 1.8em;
    display: block;
    line-height: 3.5em;
}


/* 分页css */
.paging {
    margin: 65px 0 170px;
    display: block;
}

.paging .pagination {
    justify-content: center;
}

.paging .pagination a {
    width: 40px;
    height: 40px;
    text-align: center;
    line-height: 40px;
    font-size: 14px;
    color: #999;
    margin: 0 5px;
}

.paging .pagination a:hover,
.paging .pagination a.page-num-current {
    background-color: #cf1b1c;
    color: #fff;
}

.paging .pagination a.page-item {
    background-color: transparent;
    color: #999;
}

@media only screen and (max-width: 1600px) {
    .about {
        margin: 0;
        width: auto;
    }

    .about dt {
        flex: none;
        width: 25%;
    }

    .about dd {
        flex: 1 1 0%;
    }
}

@media only screen and (max-width: 768px) {
    .faq_list dt{
        width: 100% !important;
        padding-left: 0px;
    }
    .faq_list dd .box {
        margin: 0 0px;
    }
    h3.title {
        font-size: 1.4875em;
        margin-bottom: .875em;
    }

    dd .text,
    dd .text p {
        font-size: .9875em;
        margin-bottom: .875em;
        line-height: 1.6em;
        color: #525252;
    }

    .page {
        padding: 1em 0;
    }

    .detail a {
        font-size: 1.0875em;
    }

    .subnav ul {
        flex-wrap: wrap
    }

    .subnav ul li {
        flex: 1 1 0%
    }

    .subnav ul li a {
        font-size: .875em;
        padding: .4875em 0;
    }

    .main {
        padding-top: 1em;
    }

    .main-banner {
        height: 45vw;
    }

    .main-banner .content {
        width: 100%;
    }

    .about {
        margin: 0;
        width: auto;
    }

    .about dl {
        margin-top: 1.2875em;
    }

    .about dt {
        font-size: 5em;
    }

    .advertising dl {
        flex-wrap: wrap;
        margin-top: 1.2875em;
        padding-bottom: 1.2875em;
    }

    .advertising dl dt,
    .advertising dl dd {
        width: 100%;
    }

    .advertising dl dt {
        margin-bottom: .875em;
    }

    .advertising dl dt .imgs img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .advertising dl dd h3 {
        font-size: 1.5875em;
    }

    .advertising dl dd p {
        margin-bottom: 1.2875em;
        font-size: 1.2875em;
    }

    .advertising dl dd .detail a {
        font-size: 1.0875em;
    }

    .cert_istop {
        padding: 1em 0;
    }

    .cert_istop dl {
        flex-wrap: wrap;
        padding: 1.2em 0;
    }

    .cert_istop dt,
    .cert_istop dd {
        width: 100%;
        flex: auto;
        margin-bottom: .875em;
    }

    .cert_istop dd p {
        margin-bottom: 1.0875em;
    }

    .cert_list ul {
        grid-template-columns: repeat(2, auto);
        grid-gap: 1.2em;
        margin-top: 1.2em;
    }

    .news_first {
        display: none;
    }

    .news_list ul {
        margin-top: 1.2em;
    }

    .news_list ul li {
        width: 100%;
        margin-right: 0;
    }

    .news_list ul li .imgs {
        width: 100%;
        height: 50vw;
    }

    .news_list ul li .text {
        padding: 1.6em 1.1em;
    }

    .news_list ul li .text h3 {
        margin-bottom: .875em;
    }

    .news_list ul li .text p {
        margin-bottom: 1.0875em;
    }

    .news_list ul li .detail,
    .news_list ul li .detail a {
        font-size: 1.0875em;
    }

    .article {
        padding: 0;
    }

    .other_news_list {
        flex-wrap: wrap;
    }

    .other_news_list li {
        width: 100%;
        margin-bottom: 1.2em;
    }

    .other_news_list li .imgs {
        width: 100%;
    }

    .solution_main {
        padding: 0;
    }

    .solution_main dl {
        flex-wrap: wrap;
        margin-bottom: 1.8em;
    }

    .solution_main dt {
        width: 100%;
    }

    .solution_main dt .imgs {
        width: 100%;
        height: 65vw;
    }

    .solution_main dt .imgs img {
        width: 100%;
        height: 100%;
    }

    .solution_main dd {
        margin: 0;
        padding: 1.2em;
    }

    .solution_main dd h3 {
        font-size: 1.4em;
    }

    .solution_main dd p {
        font-size: 1.0875em;
        line-height: 1.4em;
    }

    .solution_main dd .detail {
        margin-top: 1.2em;
    }

    .solution_article {
        padding: 0;
    }

    .suggest {
        margin: 2.4em 0;
    }

    .suggest_list {
        flex-wrap: wrap;
    }

    .suggest_list li {
        width: 100%;
        margin-bottom: 1.0875em;
    }

    .suggest_list li a {
        width: 100%;
        height: 65vw;
    }

    .case_list li {
        margin-right: 0;
        width: 100%;
    }

    .case_list li a {
        width: 100%;
        height: 65vw;
    }

    .faq_list dl {
        flex-wrap: wrap;
        padding: 1em 0;
    }

    .faq_list dt .imgs {
        width: 100%;
        height: auto;
    }

    .faq_list dd .box {
        margin: 0;
        padding-top: 1em;
    }

    .download {
        margin: 1em 0;
    }

    .download .papers .box {
        width: 100%;
    }

    .download .papers .download-search form {
        width: 100%;
        display: flex;
    }

    .download .papers .download-search input {
        flex: 1 1 0%;
        width: auto;
    }

    .download .papers .download-list li {
        margin-bottom: 1.6em;
    }

    .download .papers .download-list li .box {
        flex-wrap: wrap;
        padding: 1em;
    }

    .download .papers .download-list li .box .download-logo,
    .download .papers .download-list li .box .download-text,
    .download .papers .download-list li .box .download-file {
        width: 100%;
    }

    .download .papers .download-list li .box .download-tex {
        margin: .4875em 0;
    }

    .download .papers .download-list li .box .download-text h3 {
        font-size: 1.0875em;
        margin-bottom: .475em;
    }

    .download .papers .download-list li .box .download-text p {
        font-size: .875em;
        margin-bottom: .475em;
    }

    .single {
        padding: 1em 0;
    }

    .video {
        flex-wrap: wrap;
    }

    .video li {
        width: 100%;
        margin-right: 0;
        margin-bottom: 1.2875em;
    }

    .video li a {
        width: 100%;
        height: 60vw;
    }

    .video li span {
        font-size: 1.0875em;
        margin-bottom: 1.6em;
    }

    .office {
        padding: 2.4em 0 4.2em;
    }

    .office h2.title {
        margin-bottom: 1.8em;
    }

    .office .office_list li {
        width: 100%;
        height: auto;
        margin-right: 0;
        margin-bottom: 1.2em;
    }

    .products .category_main {
        margin-left: 0;
    }

    .products .products_list li {
        width: 100%;
        margin-right: 0;
    }



    /* 分页css */
    .paging {
        margin: 1.2em 0 1.6em;
    }


}

@media only screen and (max-width: 1601px) {
    .products .products_list li {
        width: 280px;
    }
    .faq_list dt{
        width: 43%;
    }
    .faq_list dd .box{
        margin: 0 35px;
    }
}

@media only screen and (max-width: 1401px) {
    ul.menu {
        width: 280px;
    }

    .products .category_main {
        margin-left: 20px;
    }

    .products .products_list li {
        width: 265px;
        margin-right: 10px;
    }

}

@media only screen and (max-width: 1361px) {
    .products .category_main {
        margin-left: 0;
    }

    .products .products_list li {
        width: 260px;
    }

}

@media only screen and (max-width: 1281px) {
    .products .products_list li {
        width: 240px;
    }

}

@media only screen and (max-width: 429px) {

    /* 证书 */
    .cert_istop dt .imgs {
        margin-right: 0;
        width: 100%;
        height: auto;
        position: relative;
    }

    .cert_istop dd h3 {
        font-size: 1.6em;
    }

    .cert_istop dd p {
        font-size: 1.2em;
    }

    .cert_list ul {
        grid-template-columns: repeat(1, auto);
        grid-gap: 1.2em;
        margin: 1.2em 2.8em 0;
    }

    .cert_list li {
        padding: .875em;
    }

    .cert_list li a {
        width: 100%;
        height: 0;
        position: relative;
        padding-bottom: 100%;
    }

    .cert_list li a img {
        position: absolute;
        max-width: 100%;
        max-height: 100%;
        top: 50%;
        left: 50%;
        transform: translateY(-50%) translateX(-50%);
    }

    /* 新闻 */
    .news_list ul {
        grid-template-columns: repeat(1, 100%)
    }

    /* 方案 */
    .solution_main dl {
        margin-bottom: .875em;
        padding: 0;
    }

    .solution_main dt .imgs {
        height: 50vw;
    }

    /* 案例 */
    .grids ul.grid {
        grid-template-columns: repeat(1, auto);
        padding-bottom: 1.4em;
    }

    .grids ul.grid li {
        height: 0;
        padding-bottom: 65%;
    }

    .grids ul.grid li img {
        position: absolute;
        max-width: 100%;
        max-height: 100%;
        top: 50%;
        left: 50%;
        transform: translateY(-50%) translateX(-50%);
    }

    .vrlist .category_main,
    .case .category_main {
        margin: 0;
    }

    /* VR视频 */
    .vrlist {
        margin-top: 1.4em;
    }

    /* 联系页 */
    .single table tbody tr td {
        width: 100%;
        display: block;
    }

    /* 加入我们 */

    .join {
        padding-top: 1.2em;
    }

    .join .category_list {
        display: none;
    }

    .join .category_main {
        margin: 0;
    }

    .join_title li {
        font-size: 1.4em;
    }

    .join_title ul li {
        font-size: 1.2em;
        padding: 1.2875em 0 .875em;
    }

    .join_title ul li.time .arrow:before {
        left: 85%;
    }

    .texts img {
        width: 100% !important;
        height: 100% !important;
    }


}