* {
    margin: 0;
    padding: 0;
}

body {
    margin: 0 auto;
    font-family: Microsoft YaHei, Arial;
    font-size: 14px;
}

@font-face {
    font-family: "Impact";
    src: url('../font/impact.ttf');
}

ul {
    padding: 0;
    margin: 0;
    list-style: none;
}

li {
    list-style: none;
}

dl, dd {
    margin: 0;
    list-style: none;
}

a {
    cursor: pointer;
    transition: color .3s linear;
    color: #000;
}

a, a:link, a:visited {
    text-decoration: none;
}

form {
    margin: 0px
}

a img {
    border: 0px;
}

h1, h2, h3, h4, h5, h6 {
    margin: 0;
}

hr {
    border: 0;
    border-bottom: 1px solid #eee;
    height: 0px;
    overflow: hidden;
}

i, em, u {
    text-decoration: none;
    font-style: normal;
}

p {
    margin: 0;
}

.ovh {
    overflow: hidden;
}

.w1200-center {
    width: 1200px;
    margin: 0 auto;
}

.w1440-center {
    width: 1440px;
    margin: 0 auto;
}

.w1600-center {
    width: 1600px;
    margin: 0 auto;
}

.fl-left {
    float: left;
}

.fl-right {
    float: right;
}

/* 重置 */

/* Header*/
.header {
    width: 100%;
    margin: 0 auto;
    padding-top: 60px;
    position: absolute;
    z-index: 9;
    display: inline-block;
    text-align: center;
}

.header .logo {
    float: left;
}

.header .logo2 {
    float: left;
    width: 100px;
    margin-top: -25px;
    margin-right: 45px; /*margin-left: 50px;*/
}

.header .nav {
    float: right;
    height: 69px;
    background: url('../images/nav.png') center center no-repeat;
}

.header .nav li {
    float: left;
    margin-left: 30px;
    position: relative;
}

.header .nav li:nth-child(1) {
    margin-left: 5px;
}

.header .nav li a {
    display: block;
    width: 65px;
    height: 69px;
    font-size: 0;
}

.header .menu-bd {
    position: absolute;
    top: 160px;
    width: 100%;
    background: rgba(16, 74, 99, .8);
    transition: all .3s ease-in-out;
    z-index: 3;
    text-align: center;
    /*display:none;*/
    opacity: 0;
    height: 0;
    overflow: hidden;
}

.header .menu-bd .w1200-center {
    overflow: hidden;
}

/*
.header .menu-bd ul {
	width: 100%;
	overflow: hidden;
}
.header .menu-bd ul li {
	float: left;
	margin: 0 30px;
	width: calc(33.333% - 60px);
}
.header .menu-bd ul li a {
	display: block;
	height: 40px;
	font-size: 14px;
	line-height: 40px;
	box-sizing: border-box;
	transition: .3s;
	color: #fff;
	text-overflow: ellipsis;
	text-align: left;
}
.header .menu-bd ul li a:hover {
	color: #999;
}
*/
.header .menu-bd .w1200-center .sidebar {
    float: left;
    width: 30%;
}

.header .menu-bd .w1200-center .class-list {
    margin: 10px 0;
    /*border: 1px solid #ddd;*/
}

.header .menu-bd .w1200-center .class-list dl {
    width: 350px;
    position: relative;
    display: block;
    line-height: 30px;
    overflow: hidden;
    margin: 5px;
    z-index: 888;
    float: left;
    text-align: left;
    cursor: pointer;

}

.header .menu-bd .w1200-center .class-list dl dt {
    color: #fff;
    cursor: pointer;
}
.header .menu-bd .w1200-center .class-list dl:hover {
    overflow: visible;
}

.header .menu-bd .w1200-center .class-list dl:hover dd {
    display: block;

    background: rgba(16, 74, 99, 1);

}

.header .menu-bd .w1200-center .class-list dl:hover dt {
    border: 0;
    border: 1px solid #ddd;
    border-right: none;
    background: rgba(16, 74, 99, 1);

}

.header .menu-bd .w1200-center .class-list dl dt {
    width: 352px;
    display: block;
    overflow: hidden;
    color: #fff;
    line-height: 30px;
    text-align: left;
    cursor: pointer;
    position: relative;
    z-index: 2;
    padding-left: 8px;
}

.header .menu-bd .w1200-center .class-list dl dd {
    min-height: 32px;
    border: 1px #fff solid;
    color: #606060;
    display: none;
    float: left;
    position: absolute;
    left: 360px;
    top: 0;
    width: 700px;
    height: auto;
    overflow: hidden;
    padding-left: 5px;
}

.header .menu-bd .w1200-center .class-list dl dd a {
    display: inline-block;
    width: 100%;
    padding: 5px;
    float: left;
    color: #ccc;
    margin: 0px;
    text-indent: 5px;
    text-align: left;
    line-height: 20px;
}

.header .menu-bd .w1200-center .class-list dl dd a:hover {
    color: #D82232;
}

.header .menu-bd .w1200-center .class-list dl dd a:active {

    background: #ddd;
    color: #747474;

}
/*
.header .menu-bd .w1200-center .chlid_class_list {
    width: calc(100% - 380px);
    height: 100%;
    display: block;
    margin-left: -21px;
    padding-left: 20px;
    vertical-align: middle;
    float: left;

}

.header .menu-bd .w1200-center .chlid_class_list dd {
    display: none;
    width: 100%;
    vertical-align: middle;
    float: left;
    text-align: left;
    position: absolute;
    top: 0;
}

.header .menu-bd .w1200-center .chlid_class_list dd a {
    width: 100%;
    display: inline-block;
    float: left;
    color: #fff;
    line-height: 30px;
    text-align: left;
}
*/
.site {
    float: right;
    margin-left: 70px;
    display: inline-block;
}

.site .search-btn, .site span {
    float: left;
}

.site .search-btn {
    width: 65px;
    height: 65px; /*margin-right: 50px;*/
}

.site span {
    width: 30px;
    height: 30px;
    margin-left: 15px;
}

.site span a {
    display: block;
    width: 30px;
    height: 18px;
    margin: 6px 0;
}

.site span .en {
    /*background: url(../images/flag.jpg) 0 0 no-repeat;*/
}

.site span .cn {
    /*background: url(../images/flag.jpg) 0 -18px no-repeat;*/
}

.icon-search {
    background: url(../images/icon-search.png) 50% 50% no-repeat;
}

.icon-search:hover {
    background: url(../images/icon-search1.png) 50% 50% no-repeat;
}

.search-warp.open {
    opacity: 1;
    visibility: visible;
}

.search-warp {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, .95);
    z-index: 999;
    transition: all .3s ease-in-out;
    opacity: 0;
    visibility: hidden;
}

.search-warp .search-close {
    width: 50px;
    height: 50px;
    background: #1E1E1E;
    color: #fff;
    position: absolute;
    right: 20px;
    top: 20px;
    text-align: center;
    line-height: 50px;
    font-size: 26px;
    border-radius: 50%;
    cursor: pointer;
    font-family: "瀹嬩綋";
}

.search-warp .search-close:hover {
    background: #2b2b2b;
}

.search {
    width: 800px;
    margin: auto;
}

.search input {
    width: 745px;
    margin: 30% 0 0;
    padding: 10px 10px 10px 45px;
    line-height: 30px;
    font-size: 20px;
    border: 1px solid #fff;
    background: url(../images/icon-search2.png) 10px 50% no-repeat;
    color: #fff;
    opacity: 0;
    transform: translateY(100px);
}

.search-warp.open .search input {
    transition: all .4s ease-in-out .7s;
    transform: translateY(0);
    opacity: 1;
}

.search-warp.open .search span {
    transition: all .4s ease-in-out 1.3s;
    transform: translateY(0);
    opacity: 1;
}

.search span {
    display: block;
    width: 75%;
    opacity: 0;
    transform: translateY(-50px);
}

.search span h2 {
    margin: 30px 0 10px;
    color: #fff;
    font-weight: 400;
    font-size: 16px;
}

.search span a {
    line-height: 30px;
    display: inline-block;
    margin-right: 20px;
    color: #bbb;
}

.search span a:hover {
    text-decoration: underline;
    color: #fff;
}

/* Header End*/

/*Footer*/
.footer {
    padding-top: 135px;
    background: #070b22;
    text-align: center;
}

.footer .w1440-center {
    height: 265px;
}

.footer span {
    width: 250px;
}

.footer span img {
    display: block;
    margin: 0 auto;
}

.footer span img:nth-child(2) {
    margin-top: 20px;
}

.footer ul {
    width: calc(100% - 500px);
    height: 265px;
    text-align: center;
}

.footer ul li {
    display: inline-block;
    /*margin: 0 20px;*/
    margin: 0 35px;
}

.footer ul li a {
    /*
    display: inline-block;
    line-height: 30px;
    margin: 15px 0;
    padding: 10px 15px;
    text-align: center;
    font-size: 18px;
    color: #fff;
    */

    display: block;
    text-align: center;
    font-size: 18px;
    color: #fff;
}

/*
.footer ul li a:hover {
	background-color: #333;
	border-radius: 4px;
}
*/
.footer .logo2 {
    height: 106px;
    margin-top: -40px;
}

.footer .web-qrcode {
}

.copy {
    color: #747474;
    line-height: 50px;
    text-align: center;
}

/*Footer End*/
.main {
    overflow: hidden;
}

.main .banner {
    width: 1920px;
    position: relative;
    margin: 0 calc(50% - 960px);
    overflow: hidden;
}

.main .banner img {
    display: block;
    width: 100%;
}

.main .banner .more {
    font-family: Impact;
    position: absolute;
    width: 450px;
    left: 50%;
    margin: 0 -225px;
    top: 35%;
    color: #fff;
}

.main .banner .more h1 {
    font-size: 53px;
    text-align: center;
    letter-spacing: 6px;
}

.main .banner .more p {
    display: block;
    font-size: 33px;
    text-align: center;
    letter-spacing: 4px;
}

.main .banner .more a {
    display: block;
    margin: 35px auto 0;
    width: 400px;
    border-radius: 40px;
    font-size: 24px;
    line-height: 80px;
    color: #008ca5;
    background: #fff;
    text-align: center;
    letter-spacing: 4px;
}

.main .our-story {
    background: #f1f1f1;
    position: relative;
    height: 652px;
}

.main .our-story .our-box {
    position: absolute;
    top: -32px;
    z-index: 1;
    width: 1360px;
    height: 272px;
    overflow: hidden;
    padding: 190px 120px;
    background: url(../images/our-bg.jpg) center center no-repeat;
}

.main .our-story .our-box img {
    float: left;
}

.main .our-story .our-box span {
    float: left;
}

.main .our-story .our-box span p {
    display: block;
    margin-left: 150px;
    width: 725px;
    line-height: 34px;
}

.main .title {
    width: 1920px;
    height: 487px;
    margin: 0 calc(50% - 960px);
    font-family: Impact;
    overflow: hidden;
}

.main .title h1 {
    margin-top: 260px;
    display: block;
    font-size: 60px;
    font-weight: 400;
    text-align: center;
    opacity: .6;
}

/*About*/
.bg-about {
    background: url('../images/bg-about.jpg') center no-repeat;
}

.main .about-content {
    padding: 180px 0 160px;
    background: #f0f0f0;
    text-align: center
}

.main .about-content .about-wrap {
    padding: 150px;
    background: url('../images/bg-about-content.jpg') center center no-repeat;
}

.main .about-content .about-wrap p {
    line-height: 35px;
    text-align: left;
}

/*About End*/

/*News*/
.bg-news {
    background: url('../images/bg-news.jpg') center no-repeat;
}

.main .news-content {
    padding: 90px 0 60px;
    text-align: center
}

.main .news-content .news_list {
    width: 100%;
}

.main .news-content .news_list li {
    margin-bottom: 15px;
    padding: 20px;
    border: 5px solid #eeeff0;
    box-sizing: border-box;
    overflow: hidden;
    transition: .3s;
}

.main .news-content .news_list li:hover {
    border-color: #f20011;
}

.main .news-content .news_list li img {
    float: left;
    width: 370px;
}

.main .news-content .news_list li span {
    float: left;
    width: 1020px;
    min-height: 220px;
    box-sizing: border-box;
    padding: 10px 20px;
    background: #fff;
    text-align: left;
}

.main .news-content .news_list li span h1 {
    margin: 0 0 5px;
    font-weight: 400;
    color: #151d28;
    font-size: 24px;
}

.main .news-content .news_list li span p {
    display: block;
    line-height: 24px;
    color: #747474;
}

.main .news-content .news_list li span i {
    display: block;
    color: #747474;
    text-align: right;
}

.main .news-content .news_list li span a {
    display: inline-block;
    padding: 8px 15px;
    background: #000;
    color: #fff;
    margin: 10px 0 0;
}

.main .news-details {
    text-align: center;
}

.main .news-details .news-title {
    padding: 30px 0;
    text-align: left;
    border-bottom: 2px solid #cacacb;
}

.main .news-details .news-title h1 {
    display: block;
    font-size: 32px;
    color: #000;
    font-weight: 400;
    text-align: center;
}

.main .news-details .news-title i {
    margin: 5px 0 0;
    font-weight: 400;
    font-size: 12px;
    color: #767676;
    line-height: 18px;
    display: block;
    text-align: center;
}

.main .news-details .content {
    padding: 20px;
    min-height: 350px;
}

.main .news-details .content p {
    font-size: 24px;
}

/*News End*/
/*Contact*/
.bg-contact {
    background: url('../images/bg-contact.jpg') center center no-repeat;
}

.contact-content {
    width: 1440px;
    margin: 30px auto;
    overflow: hidden;
    padding: 20px 0 40px;
    display: block;
}

.contact-content .in-title {
    font-weight: 700;
    font-size: 20px;
}

.contact-content ul {
    padding: 20px 0;
}

.contact-content ul li {
    display: block;
    overflow: hidden;
    border-bottom: 1px solid #ddd;
}

.contact-content ul li p {
    float: left;
    width: 40%;
    margin: 12px 0;
    padding-left: 25px;
}

.contact-content ul li p.cont-img {
    background: url(../images/contact.png) left center no-repeat;
}

.contact-content ul li p.name {
    background: url(../images/name.png) left center no-repeat;
}

.contact-content ul li p.tel {
    background: url(../images/tel.png) left center no-repeat;
}

.contact-content ul li p.fax {
    background: url(../images/fax.png) left center no-repeat;
}

.contact-content ul li p.email {
    background: url(../images/email.png) left center no-repeat;
}

.contact-content ul li p.add {
    background: url(../images/add.png) left center no-repeat;
    width: 45%;
}

/*Contact End*/

/*Products*/
.title-products {
    width: 1920px;
    height: 322px;
    margin: 0 calc(50% - 960px);
    font-family: Impact;
    overflow: hidden;
    background: url('../images/bg-products.jpg') center center no-repeat;
}

.title-products h1 {
    margin-top: 220px;
    display: block;
    font-size: 60px;
    font-weight: 400;
    opacity: .6;
}

.product {
    margin-top: 50px;
    text-align: center;
}

.product .products_list {
    overflow: hidden;
    padding: 30px 15px;
    box-sizing: border-box;
}

.product .products_list li {
    float: left;
    position: relative;
    width: 430px;
    height: 430px;
    padding: 10px;
    margin: 20px;
    text-align: center;
    border: 1px solid #e8e8e8;
    box-sizing: border-box;
    transition: all .3s ease-in-out;
}

.product .products_list li:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 25px rgba(0, 0, 0, .1);
}

.product .products_list li a {
    display: block;
    width: 100%;
}

.product .products_list li img {
    display: block;
    width: 100%;
}

.product .products_list li strong {
    display: inline-block;
    position: absolute;
    width: 100%;
    left: 10px;
    bottom: 10px;
    font-size: 25px;
    margin: 10px 0;
    text-align: center;
}

.product .products_list li span {
    display: block;
}

.product .products_list li span i {
    width: 36px;
    height: 36px;
    margin: 0 5px;
    border-radius: 50%;
    border: 1px solid #ddd;
    display: inline-block;
    background-position: 50% 50%;
    background-repeat: no-repeat;
}

.product-details .pro-title, .product .pro-title {
    display: block;
    margin: 50px auto 0;
    width: 50%;
    text-align: center;
}

.product-details .pro-title h1, .product .pro-title h1 {
    display: block;
    font-size: 40px;
}

.product-details .pro-title p, .product .pro-title p {
    display: block;
    margin: 5px 0 0;
    font-weight: 400;
    font-size: 14px;
    color: #767676;
    line-height: 18px;
}

.product-details img {
    display: block;
    width: 800px;
    margin: 50px auto;
}

.technica {
    width: 1200px;
    margin: 0 auto;
    padding: 50px 0;
    overflow: hidden;
}

.technica ul {
    border-bottom: 1px solid #ddd;
    padding: 10px;
    overflow: hidden;
}

.technica ul li {
    float: left;
    width: 33%;
    line-height: 24px;
}

.technica ul li span {
    display: block;
}

.page_wrapper {
    width: 100%;
    display: inline-block;
    margin-right: 0;
    margin-left: 0;
    padding: 50px;
    position: relative;
    -webkit-box-shadow: none;
    box-shadow: none;
    background-color: #fff;
    border-color: #ddd;
    box-sizing: border-box;
    /*inherit to lower*/
    font-size: 14px;
    line-height: 1.42857143;
    color: #333;
}

.page_wrapper span.previous_seg_btn {
    display: inline-block;
    float: left;
}

.page_wrapper span.next_seg_btn {
    display: inline-block;
    float: right;
}

.page_wrapper > nav {
    display: inline-block;
}

.page_wrapper > nav > ul {
    display: inline-flex;
    padding-left: 0;
    margin: 10px 20px;
    border-radius: 4px;
}

.page_wrapper > nav > span.total_pages {
    display: inline-block;
    padding: 7px 14px;
    background-color: #fff;
    margin: 10px 20px;
    float: right;
}

.page_wrapper > nav > ul > li {
    display: inline-block;
}

/*.page_wrapper >nav >ul >li.disabled{}*/
.page_wrapper > nav > ul > li.active {
}

/*, .page_wrapper >nav >ul >li span */
.page_wrapper > nav > ul > li a {
    position: relative;
    float: left;
    padding: 6px 12px;
    margin-left: -1px;
    line-height: 1.42857143;
    color: #337ab7;
    text-decoration: none;
    background-color: #fff;
    border: 1px solid #ddd;
}

.page_wrapper > nav > ul > li a:hover {
    z-index: 2;
    color: #23527c;
    background-color: #eee;
    border-color: #ddd;
}

.page_wrapper > nav > ul > li.disabled > a, .page_wrapper > nav > ul > li.disabled > a:focus, .page_wrapper > nav > ul > li.disabled > a:hover, .page_wrapper > nav > ul > li.disabled > span, .page_wrapper > nav > ul > li.disabled > span:focus, .page_wrapper > nav > ul > li.disabled > span:hover {
    color: #777;
    cursor: not-allowed;
    background-color: #fff;
    border-color: #ddd;
}

.page_wrapper > nav > ul > li.active > a, .page_wrapper > nav > ul > li.active > a:focus, .page_wrapper > nav > ul > li.active > a:hover, .page_wrapper > nav > ul > li.active > span, .page_wrapper > nav > ul > li.active > span:focus, .page_wrapper > nav > ul > li.active > span:hover {
    z-index: 3;
    color: #fff;
    cursor: default;
    background-color: #337ab7;
    border-color: #337ab7;
}

/*.page_wrapper >nav >ul > li:first-child > span */
.page_wrapper > nav > ul > li:first-child > a {
    margin-left: 0;
    border-top-left-radius: 4px;
    border-bottom-left-radius: 4px;
}

.page_wrapper > nav > ul > li:last-child > a {
    border-top-right-radius: 4px;
    border-bottom-right-radius: 4px;
}

.page_wrapper > span a.seg {
    display: inline-block;
    padding: 6px 14px;
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 15px;
    margin: 10px 20px;;
}

.page_wrapper > span a.next_seg {
    float: left;
}

.page_wrapper > span a.previous_seg {
    float: right;
}

.page_wrapper > span a.disabled, .page_wrapper > span a.disabled:focus, .page_wrapper > span a.disabled:hover {
    color: #777;
    cursor: not-allowed;
    background-color: #fff;
}

.page {
    margin: 40px 0;
    text-align: center;
}

.page a {
    display: inline-block;
    text-align: center;
    min-width: 24px;
    margin: 0 2px;
    padding: 5px;
    color: #747474;
    border: 1px solid #ddd;
    background: #fff;
}

.page a:hover {
    color: #fff;
    background: #f20011;
}

.page a.on {
    cursor: default;
    color: #BFBFBF;
    background: #ddd;
}

/*Products End*/

/*Video*/
.bg-video {
    background: url('../images/bg-video.jpg') center center no-repeat;
}

.video-list {
    margin: 50px 0;
}

.video-list .videolist {
    overflow: hidden;
    padding: 30px 15px;
    box-sizing: border-box;
}

.video-list .videolist li {
    float: left;
    position: relative;
    width: 430px;
    height: 360px;
    padding: 10px;
    margin: 20px;
    text-align: center;
    border: 1px solid #e8e8e8;
    box-sizing: border-box;
    transition: all .3s ease-in-out;
    box-shadow: 0 0 5px rgba(0, 0, 0, .2);
}

.video-list .videolist li:hover {
    transform: scale(1.05); /*box-shadow: 0 15px 25px rgba(0,0,0,.1);*/
}

.video-list ul.videolist li a {
    display: block;
    width: 100%;
    height: 100%;
    position: relative;
}

.video-list .videolist li i {
    display: block;
    position: absolute;
    left: 50%;
    top: 50%;
    width: 60px;
    height: 60px;
    margin: -30px 0 0 -30px;
    border-radius: 50%;
    border: 1px solid #bbb;
}

.video-list ul.videolist li i::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    width: 60px;
    height: 60px;
    margin: -30px 0 0 -30px;
    border-radius: 50%;
    background: rgba(240, 240, 240, .8);
    transition: .3s;
}

.video-list ul.videolist li i::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    width: 0;
    height: 0;
    margin: -10px 0 0 -5px;
    border: 10px solid transparent;
    border-right: 0;
    border-left: 15px solid #000;
}

.video-list ul.videolist li i:hover::before {
    box-shadow: 0 0 15px rgba(0, 0, 0, .1);
    background: rgba(240, 240, 240, .9);
}

.video-list .videolist li strong {
    display: block;
    position: absolute;
    width: 100%;
    bottom: 10px;
    font-size: 25px;
    margin: 10px 0;
    text-align: center;
}

/*
.video-list ul.videolist li i:hover{
	position: absolute;
	left: 50%;
	top: 50%;
	width: 0;
	height: 0;
	margin: -10px 0 0 -5px;
	padding:30px;
	border: 10px solid transparent;
	border-right: 0;
	border-left: 15px solid #cc0033;

}

*/
/*
.video-list ul.videolist li a:before {
	content: '';
	position: absolute;
	left: 50%;
	top: 50%;
	width: 60px;
	height: 60px;
	margin: -30px 0 0 -30px;
	border-radius: 50%;
	background: rgba(255,255,255,.9);
	border-color: rgba(0,0,0,.2);
	
	box-shadow: 0 0 15px rgba(0,0,0,.2);
}
.video-list ul.videolist li a:after {
	content: '';
	position: absolute;
	left: 50%;
	top: 50%;
	width: 0;
	height: 0;
	margin: -10px 0 0 -5px;
	border: 10px solid transparent;
	border-right: 0;
	border-left: 15px solid #000;
}
*/

.video-list ul.videolist li a img {
    display: block;
    width: 100%;
}

.video-list ul.videolist li span {
    display: inline-block;
    width: calc(100% - 20px);
    padding: 10px;
}

.video-details {
    text-align: center;
}

.video-details span {
    display: block;
    margin: 50px auto 0;
    width: 50%;
    text-align: center;
}

.video-details span h1 {
    display: block;
    font-size: 32px;
}

.video-details span p {
    display: block;
    margin: 5px 0 0;
    font-weight: 400;
    font-size: 14px;
    color: #767676;
    line-height: 18px;
}

.video-details video {
    display: block;
    width: 100%;
    margin: 50px 0;
}

/*Video End*/

/*1440以下分辨率*/
@media screen and (max-width: 1440px) {
    .w1440-center {
        width: 1280px;
    }

    .product .products_list li {
        width: 375px;
        height: 375px;
    }

    .video-list .videolist li {
        width: 375px;
        height: 315px;
    }

    .product .videolist li {
        width: 375px;
        height: 315px;
    }

    .contact-content {
        width: 1280px;
    }

    .main .news-content .news_list li span {
        width: 860px;
    }
}

/*1440以下分辨率 End*/