* {
    margin: 0;
    padding: 0;
    font-family: Arial, Helvetica, sans-serif;
}

ul {
    list-style: none;
    overflow: hidden;
}

a {
    text-decoration: none;
}
i,em{
    font-style: normal;
    display: block;
}
img{
    border: none;
}
.w_1350{
    width: 1350px;
    margin: 0 auto;
    overflow: hidden;
}
/*header*/
.header{
    width: 100%;
    height: 120px;
    background: url(../images/h_bg.jpg) center center no-repeat;
    position: relative;
    z-index: 111;
}
.logo{
    float: left;
    margin-top: 8px;
}
.nav{
    float: left;
    margin-left: 80px;
}
.nav li{
    float: left;
    line-height: 100px;
    height: 120px;
    position: relative;
    width: 110px;
    text-align: center;
    font-size: 17px;
    margin-left: 15px;
}
.nav li a{
    color: #fff;
    display: block;
    width: 100%;
    height: 100%;
}
.nav li.active::after{
    content: '';
    display: block;
    width: 96px;
    height: 30px;
    background: url(../images/icon.png) 0px -4px no-repeat;
    bottom: 17px;
    left: 0;
    position: absolute;
    right: 0;
    margin: auto;
}
.h_b{
    width: 100%;
    height: 10px;
    background: #ce0000;
    margin-top: 5px;
    z-index: 111;
    position: relative;
}
/*banner*/
.banner{
    height: 790px;
    position: relative;
    margin-top: -15px;
}
.banner .swiper-container {
    height: 790px;
    width: 100%;
    overflow: hidden;
    position: absolute;
    top: 0;
    left: 0;
}
.banner .swiper-slide {
    height: 790px;
}

.banner:hover .pagination {
    opacity: 1;
}

.banner:hover .arrow-left {
    opacity: 1;
}

.banner:hover .arrow-right {
    opacity: 1;
}

.banner .pagination {
    position: absolute;
    z-index: 20;
    bottom: 20px;
    text-align: center;
    width: 100%;
    opacity: 0;
    transition: all 0.5s;
}

.banner .swiper-pagination-switch {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ce0000;
    margin: 0 3px;
    cursor: pointer;
}

.banner .swiper-active-switch {
    width: 15px;
    height: 15px;
    border-radius: 20px;
    background: #fff;
}

.banner .arrow-left {
    background: url(../images/b_arrow.png) no-repeat left bottom;
    position: absolute;
    left: 30px;
    top: 50%;
    margin-top: -25px;
    width: 50px;
    height: 50px;
    z-index: 222;
    opacity: 0;
    transition: all 0.5s;
}
.banner .arrow-right {
    background: url(../images/b_arrow.png) no-repeat right bottom;
    position: absolute;
    right: 30px;
    top: 50%;
    margin-top: -25px;
    width: 50px;
    height: 50px;
    z-index: 222;
    opacity: 0;
    transition: all 0.5s;
}
/*pro_list*/
.pro_list{
    background: url(../images/list_bg.jpg) center center no-repeat;
    padding: 40px 0;
}
.list_tit{
    text-align: center;
}
.pro_list_con{
    margin-top: 30px;
}
.pro_list_con li{
    width: 280px;
    height: 410px;
    float: left;
    position: relative;
}
.pro_list_con li a{
    display: block;
    width: 100%;
    height: 100%;
}
.pro_list_con li i{
    width: 250px;
    height: 40px;
    background-image: url(../images/icon.png);
    background-repeat: no-repeat;
    position: absolute;
    bottom: 50px;
    left: 0;
    right: 0;
    margin: auto;
}
.pro_list_con li:nth-child(2){
    width: 510px;
    height: 410px;
}
.pro_list_con li:nth-child(1){
    background: url(../images/list_1.jpg) center center no-repeat;
}
.pro_list_con li:nth-child(1) i{
    background-position: -15px -66px;
}
.pro_list_con li:nth-child(2){
    background: url(../images/list_2.jpg) center center no-repeat;
}
.pro_list_con li:nth-child(2) i{
    background-position: -15px -120px;
    top: 50px;
    right: 0;
    margin: 0;
    left: 230px;
}
.pro_list_con li:nth-child(3){
    background: url(../images/list_3.jpg) center center no-repeat;
}
.pro_list_con li:nth-child(3) i{
    background-position: -14px -178px;
}
.pro_list_con li:nth-child(4){
    background: url(../images/list_4.jpg) center center no-repeat;
}
.pro_list_con li:nth-child(4) i{
    background-position: -15px -237px;
}
/*pro_litpic*/
.pro_litpic{
    background: url(../images/pro_bg.jpg) center center no-repeat;
}
.pro_litpic>ul{
    width: 660px;
    margin: 25px auto;
    overflow: hidden;
}
.pro_litpic>ul li {
    margin: 0 16px;
    float: left;
}
.pro_litpic>ul li::before{
    content: '';
    display: inline-block;
    width: 30px;
    height: 16px;
    background: url(../images/icon.png) -124px -10px no-repeat;
    vertical-align: middle;
    margin-right: 7px;
    margin-bottom: 4px;
}
.pro_litpic>ul li:hover::before{
    background: url(../images/icon.png) -159px -10px no-repeat;
}
.pro_litpic>ul li:hover a{
    color: #ce0000;
}
.pro_litpic>ul li a{
    color: #333;
}
.pro_show{
    width: 86%;
    margin: 30px auto;
    height: 620px;
    overflow: hidden;

}
.pro_go ul li{
    width: 24.6%;
    margin: 3px 0.2%;
    float: left;
    overflow: hidden;
    position: relative;
}
.pro_go ul li a{
    display: block;
    height: 300px;
    overflow: hidden;
}
.pro_go ul li a img{
    width: 100%;
    height: auto;
    min-height: 300px;
    transition: all 0.6s;
}
.pro_go ul li:hover img{
    transform: scale(1.1);
}
.pro_go ul li:hover .pro_cover{
    opacity: 1;
}
.pro_cover{
    top: 0;
    transition: all 0.6s;
    opacity: 0;
    left: 0;
    position: absolute;
    width: 100%;
    height: 100%;
    background: rgba(206,0,0,.9) url(../images/cover.png) center center no-repeat;
}
.pro_cover span{
    display: block;
    width: 190px;
    height: 100px;
    background: url(../images/logo.png) center center no-repeat;
    margin: 63px auto 0 auto;
    background-size:contain ;
}
.pro_cover em{
    width: 1px;
    height: 20px;
    background: #fff;
    margin: 5px auto;
}
.pro_cover i{
    font-size: 15px;
    color: #fff;
    text-align: center;
}
/*com*/
.com{
    width: 100%;
    height: 990px;
    background: url(../images/com_bg.jpg) center center no-repeat;
}
.com_con{
    position: relative;
    height: 620px;
}
.com_des{
    position: absolute;
    top: 245px;
    right: 161px;
    font-size: 15px;
    color: #666;
    writing-mode: horizontal-tb;
    writing-mode: vertical-rl;
    height: 320px;
    line-height: 30px;
}
.com_des p{
    margin-right: 20px;
}
/*news*/
.news{
    margin-top: -250px;
    position: relative;
    z-index: 111;
}
.news ul{
    margin-top: 20px;
}
.news ul li{
    float: left;
    width: 320px;
    height: 490px;
    overflow: hidden;
    background: #fff;
    box-shadow: 0 0 11px rgba(0,0,0,.2);
    position: relative;
    margin: 8px;
}
.news ul li::after{
    content: '';
    display: block;
    position: absolute;
    right: 20px;
    bottom: 20px;
    width: 58px;
    height: 11px;
    background: url(../images/icon.png) -228px -14px;
}
.news ul li a{
    display: block;
    width: 100%;
    height: 100%;
}
.news ul li span{
    display: block;
    width: 100%;
    height: 250px;
    overflow: hidden;
}
.news ul li span img{
    width: 100%;
    height: auto;
    min-height: 250px;
    transition: all 0.6s;
}
.news ul li:hover img{
    transform: scale(1.1);
}
.news_des{
    padding: 35px;
}
.news_des h3{
    font-size: 18px;
    color: #333;
}
.news_des em{
    width: 35px;
    height: 1px;
    background: #b5b4b4;
    margin: 15px 0;
}
.news_des p{
    font-size: 15px;
    line-height: 25px;
    color: #666;
}
.news>a{
    display: block;
    width: 200px;
    height: 45px;
    border-radius: 5px;
    background: #ce0000;
    text-align: center;
    line-height: 45px;
    color: #fff;
    font-size: 15px;
    margin: 20px auto 0 auto;
}
/*three*/
.three{
    background: url(../images/news_bg.jpg) center center no-repeat;
    width: 100%;
    height: 565px;
    padding-top: 250px;
    box-sizing: border-box;
    margin-top: -200px;
}
.th_con{
    width: 1350px;
    margin: 0 auto;
}
.th_con ul{
    overflow: inherit;
}
.th_con ul::after,.th_con::after{
    content: '';
    display: block;
    clear: both;
}
.th_con ul li{
    float: left;
    width: 388px;
    height: 322px;
    margin: 0 31px;
}
.th_con ul li:nth-child(1){
    background: url(../images/t1.png) center center no-repeat;
}
.th_con ul li:nth-child(2){
    background: url(../images/t2.png) center center no-repeat;
    margin-top: 40px;
}
.th_con ul li:nth-child(3){
    background: url(../images/t3.png) center center no-repeat;
}
.th_con ul li p{
    font-size: 15px;
    width: 220px;
    line-height: 20px;
    text-align: center;
    margin-top: 210px;
    margin-left: 30px;
    color: #666;
}
/*footer*/
.footer{
    background: url(../images/f_t_bg.jpg) top center no-repeat;
}
.f_con{
    margin: 0 auto 15px auto;
    padding-top: 24px;
}
.f_con div{
    float: left;
}
.f_tit{
    color: #fff;
    font-size: 18px;
    margin-bottom: 15px;
}
.f_tit i{
    display: inline-block;
    text-transform: uppercase;
}
.f_nav{
    width: 350px;
}
.f_nav ul{
    margin-top: 30px;
}
.f_nav ul li a{
    color: #fff;
}
.f_nav ul li{
    float: left;
    width: 125px;
    line-height: 30px;
    font-size: 15px;
}
.f_nav ul li::before{
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background: #fff;
    border-radius: 50%;
    vertical-align: middle;
    margin-right: 8px;
}
.f_contact{
    text-align: center;
    color: #fff;
}
.f_contact span{
    display: block;
    width: 40px;
    margin: 20px auto;
}
.f_contact span::before,.f_contact span::after{
    content: '';
    display: block;
    width: 40px;
    height: 1px;
    background: #fff;
}
.f_contact span::after{
    margin-top: 5px;
}
.f_contact ul li{
    line-height: 30px;
}
.f_des{
    width: 450px;
    float: right !important;
    text-align: right;
}
.f_des p{
    font-size: 15px;
    color: #fff;
    line-height: 25px;
    margin-top: 30px;
}
.f_b{
    background: url(../images/f_b_bg.png) center center no-repeat;
    height: 150px;
}
.f_b{
    text-align: center;
    color: #fff;
    padding-top: 90px;
    box-sizing: border-box;
}
.f_b a{
    color: #fff;
}
.f_b a img{
    vertical-align: middle;
    margin-left: 8px;
    height: 30px;
}