*{padding:0;margin:0;box-sizing: border-box;}
a:focus {outline: none;}
.fl{float: left;}
.fr{float: right;}
.clearfix::after{content:"";visibility:hidden;display:block;height:0;clear:both;}
body{color:#171717;line-height: 22px;font-size: 14px; font-family:"PingFangSC-Regular","PingFang SC","Helvetica Neue",?Helvetica, Arial, "Microsoft?YaHei", "WenQuanYi Micro?Hei", sans-serif;overflow-x: hidden;}
ul li{list-style:none;}
html,body{height: 100%;}
a,a:link, a:visited, a:hover {text-decoration: none; cursor: pointer;}
a{color: #171717;}
.w-1200{width:1200px;margin:0 auto;}
.clear{clear:both}
img{max-width: 100%;}
input:focus{outline:none;}
.twoLines{
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box ;
    -webkit-line-clamp: 2;
    /*! autoprefixer: off ;*/
    -webkit-box-orient: vertical;
    /* autoprefixer: on ;*/
}
/* 手势
.pointer{cursor:pointer;} */
 /*头部*/
 .header-box{position: relative;}
 .header-top{position: relative;}
 .header-top .logo{padding: 22px 0 14px;float: left;}
 .phone-header{ display: none;}
 .header-top .logo img{width:675px;height:64px;display: block;}
 .header-top .link{position: absolute;top: 40px;right: 300px;line-height: 20px;font-weight: bold; text-shadow: 0px 1px 2px #FFFFFF;}
 .header-top .link a{color:#333;letter-spacing:1px;}
 .header-top .menu-box{width: 330px;height: 100px;float: right; padding: 49px 0 0 0;}
 .menu-box .search, .menu-box .wechat,.menu-box .weibo,.menu-box .email{
    float: right;
 }
.search {
    position: relative;
}
.search .search-text {
    font-size: 14px;
    padding: 5px 40px 5px 16px;
    width: 168px;
    height: 30px;
    background: #F9FBFF;
    border: 1px solid #E6E8EF;
    color: #86909C;
}
input::placeholder { 
    color: #86909C;
}
.search .search-btn {
    position: absolute;
    border:0;
    outline: none;
    cursor: pointer;
    right: 0;
    bottom: 0;
    width: 40px;
    height: 30px;
    background: url(../img/search.png)no-repeat;
    background-size: 100% 100%;
}
 .search .search-btn .search-icon{
    width: 16px;
    height: 16px;
    display: block;
 }
 .menu-box .wechat{margin: 0 12px;position: relative;height: 30px;padding: 3px 0;}
 .menu-box .email{margin: 0 12px;position: relative;height: 30px;padding: 3px 0;}
 .menu-box .weibo{height: 30px;padding: 3px 0;}
 .menu-box .weibo-icon{display: block; width: 24px;height: 24px; background: url(../img/weibo.png) no-repeat;background-size: 100% 100%;}
 .menu-box .wechat-icon{display: block; width: 24px;height: 24px; background: url(../img/wechat.png) no-repeat;background-size: 100% 100%;}
 .menu-box .email-icon{display: block; width: 24px;height: 24px; background: url(../img/email-1.png) no-repeat;background-size: 100% 100%;}
 .menu-box .wechat .bigImg{
    width: 166px;
    height: 178px;
    display: none;
    position: absolute;
    z-index: 300;
    right: -71px;
    text-align: center;
    padding-top: 12px;
 }
 .menu-box .wechat .bigImg img{
    width: 166px;
    height: 166px;
    display: block;
 }
 .wechat:hover .bigImg{
    display: block;
 }
 /* 导航菜单 */
.nav{
    position: relative;
    width: 100%;
    height: 50px;
    background: #BF120A;
}
.nav_ul{
    font-size: 0;
    height: 50px;
}
.nav .nav_li{  
    width: 10%;  
    display: inline-block;
    text-align: center;
    position: relative;
    height: 40px;
    margin-top: 5px;
    line-height: 40px;
}
.nav .nav_li:hover{
    background: #fff;
}
.nav .nav_li:hover a{
    color: #BF120A;
}
.nav .nav_li>a{
    color: #fff;
    font-size: 16px;
    font-family: PingFangSC-Medium, PingFang SC;
    font-weight: 600;
}
.sub-nav {
    display: none;
    position: absolute;
    top: 50px;
    left: 0;
    z-index: 10;
    width: 100%;
} 
.nav_li:hover .sub-nav,.sub-nav>li:hover .three-nav{
    display: block;
}
.sub-nav>li{
    position: relative;
}
.sub-nav>li,.three-nav>li{
    background:rgba(171, 55, 36, 0.7);
}
.sub-nav>li>a,.three-nav>li>a{
    color: #fff;
    display: block;
    font-size: 16px;
    font-family: PingFangSC-Medium, PingFang SC
}
.sub-nav>li:hover,.three-nav>li:hover{ 
    background:#BF120A;
}
.three-nav{
    display: none;
    width: 100%;
    position: absolute;
    top: 0;
    left: 100%;
    z-index: 10;
}
/* 底部 */
 .redLine{
    width: 100%;
    height: 6px;
    background: #BF120A;
}
.footer-box{
    width: 100%;
    min-height: 148px;
    background: #262626;
    padding: 30px 0;
}
.footer-logo{
    width: 322px;
    height: 81px;
    display: inline-block;
}
.footer-logo img{
    width: 100%;
    height: 100%;
    display: block;
}
.line{
    width: 1px;
    height: 82px;
    background: #565454;
    display: inline-block;
    margin: 0 40px;
}
.footer-detail{
    display: inline-block;
}
.footer-detail p{
    color:#fff;
    line-height: 18px;
    text-align: left;
    font-size: 12px;
}

/* 二级页面大图片 */
.picture{
    width: 100%;
    height: 460px;
    background: url(../img/banner1.png) no-repeat;
    background-size: 100% 100%;
}
@media screen and (max-width: 1200px){
    .w-1200{width:100%;}
    .header-top{
        display: none;
    }
    .nav{
        display: none;
    }
    .phone-header {
        display: block;
        position: relative;
        width: 100%;
        height: 60px;
    }
    .phone-header-top{
        position: relative;
        width: 100%;
        height: 100%;
        padding: 0 20px;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    .phone-header .ph-logo{
        display: block;
        width: 229px;
        height: 36px;
    }
    .ph-icon{
        width: 46px;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    .phone-header .ph-bred{
        width: 16px;
        height: 16px;
    }
    .ph-search{
        width: 20px;
        height: 20px;
        /* margin-left: 50px; */
    }
    .ph-nav, .ph-searchBox {
        display: -webkit-flex;
        display: flex;
        height: 100%;
        width: 100%;
        position: fixed;
        z-index: 10000;
        bottom: 0;
        transform: translateX(100%);
        -webkit-transform: translateX(100%);
        transition: all .5s;
    }
    .shadow-nav, .shadow-search{
        height: 100%;
        width: 30%;
        background: rgba(0, 0, 0, 0.2);
    }
    .menu-content {
        height: 100%;
        background-color: #fff;
        flex: 1;
        display: block;
        padding-top: 50px;
    }
    .menu-content .navli{   
        height: 40px;
        line-height: 40px;
        width: 100%;
        padding: 0px 20px;
    }
    .menu-content .navli a{
        color: #444;
        font-size: 16px;
    }
    .search{
        padding: 0 40px 0 20px;
        box-sizing: border-box;
    }
    .search .search-btn{
        right: 40px;
    }
    .search .search-text{
        width: calc(100% - 40px);
        padding: 5px;
    }
    .footer-logo{
        width: 218px;
        height: 55px;
        display: block;
        margin: 0 auto;
        margin-bottom: 15px;
    }
    .footer-detail{
        width: 100%;
        margin: 0 auto;
    }
    .footer-detail p{
        font-size: 12px;
        text-align: center;
    }
    .line{display: none;}
    .picture{
        height: 170px;
    }
    .footer-detail p span{
        display: block;
    }
}