body{
    margin:0;
    padding:0;
    background:#fff; 
}
h1,
h2,
h3,
h4,
h5 {
padding: 0;
margin: 0;
display: inline-block;
}
ul,
li,
ol {
padding: 0;
margin: 0;
list-style: none;
}
.left_heade,
.right_heade {
    display: inline-block;
}

.right_heade {
    float: right;
}

.left_heade span,
.right_heade span {
    padding: 0 1px;
}

.header_ {
    width: 100%;
    background: #e4e4e4;
    padding: 8px 0;
    font-size: 13px;
    display: block;
    color: #333;
    z-index: 99;
    border-bottom: 5px solid #05a2e5;
}

.head_ {
    
    background: #ffffff;
}

.nav_header {
    width: 1200px;
    margin: 0 auto;
}

.logo_se {
    background-image: url(./img/head_.jpg);
    background-repeat: no-repeat;
}

.logo_seach {
    width: 1200px;
    margin: 0 auto;
    padding: 10px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo_img {
    display: inline-block;
}

.logo_img img {
    width: 319px;
    height: 72px;
}

.cart {
    width: 155px;
    display: inline-block;
}

.fbxx {
    width: 115px;
    background: #fff;
    border-radius: 20px;
    padding: 10px;
    border: 1px solid #aaaaaa;
    color:#787777;
    text-align: center;
    font-weight: bold;
    font-size:13px;
}


.nav_ {
    width: 100%;
    font-size: 0;
    
    background-image: url(./img/nav_.jpg);
    background-repeat: no-repeat;
}

.nav_ li {
    
    text-align: center;
    display: inline-block;
    padding: 12px 15px;
    font-size: 16px;
    color: #fff;
    
    
}

.nav_tit {
    width: 1200px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 0 auto;
}

.nav_ li:first-child{
    background: #dd0000;
    width: 178px;
}

.nav_ li:hover {
    background: #dd0000;
    cursor: pointer;

}
.gyfl{
    width: 112px;
    background: #dd0000;
    color:#fff;
    padding: 12px 10px;
    font-size: 17px;
}
.er{
    width: 95px;
    display: inline-block;
}
.er img{
    width: 95px;
    height: 95px;
}
.ban_mask{
    width: 1200px;
    position: absolute;
    left: calc((100% - 1200px)/2);
    top: 0px;
    z-index: 999;
}
.ban_left{
    width: 208px;
    height:516px;
    display: inline-block;
    background:rgba(4, 159, 230, 0.75);
    /* border:1px solid #92deff; */
}
.icon_{
    vertical-align: middle;
    display: inline-block;
}
.big_class{
}
.big_li{
    padding:15px 10px;
    border-bottom:1px solid #92deff;
}

.big_li span{
    vertical-align: middle;
    font-size:16px;
    color: white;
}
.small_class{
    flex-wrap: wrap;
    font-size:13px;
    margin-top:8px;
}
.small_class li{
    
    padding:3px 3px;
    display: inline-block;
}
.small_class li a{    
    color: #e4e4e4;
}
.ban_right{
    width: 246px;
    height: 514px;
    font-size:0;
    display: inline-block;
    float: right;
    border:1px solid #eeeeee;
    background:#fff;
}
.hi_top{
    width: 226px;
    padding:15px 10px;
}
.hi_img{
    width: 60px;
    display: inline-block;
}
.hi_des{
    width: 150px;
    font-size:14px;
    color:#555555;
}
.hi_des span{
    display: block;
}
.log_btn{
    width: 100px;
    padding:15px 11px;
    display: inline-block;
    color:#a2a2a2;
    text-align: center;
    border-top:1px solid #e5e5e5;
    border-bottom:1px solid #e5e5e5;
    border-right:1px solid #e5e5e5;
}
.log_btn img,.log_btn span{
    vertical-align: middle;
}
.log_btn span{
    font-size:14px;
    margin-left:5px;
}
.s_icon ul{
    width: 226px;
    padding:20px 10px;
}
.s_icon li{
    width: 62px;
    text-align: center;
    display: inline-block;    
}
.s_icon span,.s_icon img{
    display: block;
}
.s_icon span{
    font-size:13px;
    color:#555555;
    margin-top:3px;
}
.active{
    width: 246px;

}
.act_top{
    padding:5px 10px;
    background:#f4f4f4;
}
.act_top h4{
    font-size:13px;
    color:#262626;
}

.act_cont ul{
    width: 220px;
    
    margin-top: 10px;
    padding:0px 10px;
}
.act_cont li {
    width: 215px;
    height:30px;
    line-height: 30px;
    font-size:14px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.act_cont li:before{
    content:'•';
    margin-right:5px;
    color:#252525;
}
.b_r{
    width: 216px;
    padding:0px 15px;
}
.ad-3{
  width: 1200px;
  margin-top: 20px;
}
.cont{
    width: 1200px;
    margin:0 auto;
}
.public{
    display: inline-flex;
    justify-content: space-between;
    align-items: center;
}

/* 推荐产品 */
.sell1 {
    width: 1200px;
    margin-top: 20px;
    font-size:0;
}

.sell1_top {
    border-bottom: 1px solid #d40000;
}

.sell1_top img,
.sell1_top h3 {
    vertical-align: middle;
}

.sell1_top h3 {
    font-size: 24px;
    color:#d90b18;
    font-weight: bold;
    margin-left: 10px;
}

.sell1_t_l {
    display: inline-block;
    border-bottom: 3px solid #d40000;
}

.more_ {
    float: right;
    font-size: 13px;
    color: #d40000;
    display: inline-block;
    margin-top: 8px;
}

.sell1_cont ul {
    width: 1200px;
    display: inline-flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 15px;
    font-size: 0;
}

.sell1_cont li {
    width: 230px;
    transition: all 0.6s; 
    display: inline-block;
}

.sell1_cont img {
    width: 220px;
    height: 225px;
    padding:5px;
    border: 1px solid #b1b1b1;
    overflow: hidden;
    transition: all 0.6s; 
}
.sell1_cont img:hover{
    transform: scale(1.1);  
    background-size:110%;
}
.sell1_name {
    width: 220px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-top:5px;
    font-size: 16px;
}

.sell1_price {
    width: 220px;
    height: 26px;
    line-height: 26px;
    font-size: 16px;
    color:#d90b18;
    margin-top: 5px;
}

.sell1_price span:after{
    content:'自营';
    color:#fff;
    background: #d90b18;
    padding:0 2px;
    margin-left:10px;
    font-size:13px;
}
.dz{
    display: inline-block;
    float: right;
    color:#333;
    font-size:14px;
}

/* 求购采购 */
.buy{
    width: 1200px;
    margin-top: 20px;
    font-size:0;
}
.buy_list ul{
    width: 1200px;
    flex-wrap: wrap;

}
.buy_list li{
    width: 344px;
    padding: 20px;
    margin-top: 15px;
    display: inline-block;
    border: 1px solid #d90b18;
}
.buy_name{
    width:340px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size:15px;
}
.cpqg{
    display: inline-block;
    background: #dd0000;
    margin-top: 20px;
    color:#fff;
    font-size: 12px;
    padding: 1px 10px;
    display: inline-block;
}
.buy_sx{
    display: inline-block;
    float: right;
    margin-top: 20px;
}
.buy_sx img{
    display: inline-block;
    vertical-align:middle;
}
.buy_sx span{
    font-size:13px;
    color:#666666;
    vertical-align:middle;
}

/*商城*/
.sell{
    width: 1200px;
    margin-top:20px;
    font-size:0;
}
.sell_t{
    background:url(./img/sell_.jpg);
    padding:5px 15px;
}
.sell_t h3{
    font-size:20px;
    color:#fff;
    border-left:5px solid #fff;
    /* margin-left:5px; */
}
.ckgd{
    float: right;
    font-size: 12px;
    color:#fff;
    margin-top:5px;
}
.sell_cont{
    width: 1200px;
    margin-top:20px;

}
.sell_ad{
    width: 231px;
    display: inline-flex;
}
.sell_ad img{
    width: 231px;
    height: 491px;
}
.sell_right{
    width: 967px;
    display: inline-block;
}
.company{
    width: 967px;


}
.comp_lists{
    width:415px;
    display: inline-block;
    border-left:1px solid #e5e5e5;
    border-right:1px solid #e5e5e5;
}
.comp_t{
    background: #fafafa;
    border:1px solid #e5e5e5;
    padding:10px 10px;
}

.comp_t h3{
    font-size:14px;
    border-left:3px solid #d90b18;
}
.comp_t span{
    font-size:13px;
    color:#d90b18;
    float: right;

}
.comp_list{
    padding:0 15px;

}
.comp_list ul{
    height: 179.5px;
}
.comp_list li{
    padding: 22px 0;
    border-bottom: 1px dashed #e6e6e6;
}
.comp_list h3{
    width: 280px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size:14px;

}
.vip{
    font-size:12px;
    color:#f66a00;
    margin-left:30px;
    display: inline-block;
}
.vip span{
    
    margin-left:5px;
}
.comp_des{
    width: 375px;
    white-space: nowrap;
    overflow:hidden;
    text-overflow: ellipsis;
    font-size:13px;
    color:#666;
    margin-top:5px;
}
.comp_ad{
    width:550px;
    display: inline-block;
}
.comp_ad img{
    width: 550px;
    height: 220px;
}
.sell_list ul{
    width: 925px;
    height: 230px;
    padding:0 20px;
    border-bottom: 1px solid #e5e5e5;
    border-left: 1px solid #e5e5e5;
    border-right: 1px solid #e5e5e5;

}
.sell_list li{
    width: 150px;
    display: inline-block;
    padding:17px 10px;
      transition: 1s;
}
.sell_list li:hover{
    box-shadow: 5px 5px 5px 5px #d2d3d9;
    transition: 1s;
}
.sell_list img{
    width:150px;
    height: 150px;

}
.sell_name{
    width: 150px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size:14px;
    margin-top:5px;
}
.sell_price{
    font-size:14px;
    color:#ff0000;
    margin-top:5px;

}
/* 广告位 */
.ad_{
    width: 1200px;
    margin-top:20px;
    font-size:0;
}


/* 工程项目 */
.project_ {
    width: 1200px;
    margin-top: 30px;
}
.pro_cont{
    width: 1200px;

}
.pro_ {
    width: 353px;
    padding: 15px;
    border: 1px solid #dd0000;
    display: inline-block;
    /* border-radius: 10px; */
    margin-top: 15px;
}
.des-top img {
    vertical-align: middle;
}

.des-top h2 {
    margin-left: 10px;
    font-weight: 700 !important;
    font-size: 20px !important;
    vertical-align: middle;
}
.red_more {
    padding: 3px 15px;
    background: #dd0000;
    color: #fff;
    font-size: 13px;
    float: right;
    border-radius: 20px;
    margin-top: 5px;
}

.pro_list {
    height: 272px;
    margin-top: 10px;
}

.pro_list li {
    width: 340px;
    overflow: hidden;
    height: 34px;
    line-height: 34px;
    font-size: 15px;
    white-space: nowrap;
    text-overflow: ellipsis;
}





.ad_{
    width: 1200px;
    margin-top: 20px;
    font-size: 0;
}
/*商城*/


.comp_l{
    width: 170px;
    padding:5px 0;
    color:#2166d3;
    display: inline-block;
    
    border-radius: 12px 12px 0 0;
}
.comp_l h3{
    font-size: 21px;
    margin-left: 10px;
}

.f1{
    padding:3px 4px;
    border:1px solid #2166d3;
    font-size:18px;
    color:#2166d3;
    font-weight: bold;
    border-radius: 20px;
    display: inline-block;
}
.comp_class{
    float: right;
    margin-top:13px;
}
.comp_class li{
    display: inline-block;
    font-size:14px;
    color:#666;
    font-weight: bold;
    padding:3px 15px;
    border:1px solid #fff;
    border-top: 2px solid #fff;
}
.comp_class li:hover{
    color: #e1251b;
    cursor: pointer;
    border-left:1px solid #e1251b;
    border-right: 1px solid #e1251b;
    border-top:2px solid #e1251b;
    padding:3px 15px;
    
}

/* 政策法规 */
.policies {
    width: 1200px;
    margin-top: 20px;
}

.polic {
    width: 342px;
    padding: 18px;
    border: 1px solid #d90b18;
    display: inline-block;
}

.polic_top {
    font-size: 0;
}

.polic_top h3 {
    font-size: 20px;
    padding: 7px 0;
}

.m_ {
    display: inline-block;
    float: right;
    font-size: 13px;
    color: #808080;
    margin-top: 10px;
}

.polic_hot {
    width: 341px;
    font-size: 0;
    position: relative;
    margin-top: 15px;
}

.polic_hot img {
    width: 341px;
    height: 226px;
}

.polic_name {
    width: 321px;
    text-align: center;
    padding: 7px 10px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 14px;
    color: #fff;
    position: absolute;
    bottom: 0;
    left: 0;
    background: rgba(0, 0, 0, 0.6);

}

.polic_list {
    width: 342px;
    margin-top: 10px;
}

.polic_list li {
    width: 342px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    height: 35px;
    line-height: 35px;
    font-size: 15px;
}

.polic_list li::before {
    content: '•';
    color: #a0a0a0;
    margin-right: 5px;
}

/* 展会信息 */
.exhib {
    width: 424px;
    height: 502px;
    padding: 18px;
    display: inline-block;
    border: 1px solid #d90b18;
}

.exhib_cont {
    width: 424px;
    font-size: 0;
}

.exhib_cont li {
    width: 424px;
    margin-top: 15px;
}

.exhib_img {
    width: 146px;
    display: inline-block;
}

.exhib_img img {
    width: 146px;
    height: 99px;
}

.exhib_name {
    width: 250px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 15px;
}

.exhib_intr {
    margin-top: 10px;
    font-size: 14px;
    color: #808080;
}

.exhib_intr img,
.exhib_intr span {
    vertical-align: middle;
}

.exhib_time {
    width: 175px;
    display: inline-block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    vertical-align: middle;
}

/* 建筑知识 */
.news{
    margin-top: 20px;
}
.know {
    width: 284px;
    height: 503px;
    padding: 18px;
    font-size: 0;
    display: inline-block;
    border: 1px solid #d90b18;

}

.know_top ul {
    font-size: 0;
    border-bottom: 2px solid #d90b18;
}

.know_top li {
    width: 90px;
    text-align: center;
    display: inline-block;
    padding: 8px 25px;
    font-size: 20px;
    /* color:#fff; */
    font-weight: bold;
    border-radius: 5px 5px 0 0;
}

.know_top li:first-child {
    background: #d90b18;
    color: #fff;
}

.know_hot {
    padding: 10px 0;
    border-bottom: 1px dashed #e6e6e6;
}

.kh_name {
    width: 284px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 15px;
    height: 30px;
    line-height: 30px;
}

.kh_intr {
    width: 284px;
    overflow: hidden;
    word-break: break-all;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    line-height: 23px;
    font-size: 13px;
    color: #808080;
}

.know_list {
    margin-top: 5px;
}

.know_list li {
    width: 284px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 15px;
    line-height: 44px;
    height: 44px;
    border-bottom: 1px dashed #e6e6e6;
}

.know_list li::before {
    content: '•';
    color: #808080;
    margin-right: 5px;
}

.know_list li:last-child {
    border-bottom: 0;
}