/* reset style */
.f_l{float:left;}
.f_r{float:right;}
.mg_b10{margin-bottom: 10px}
.w940{width:940px;}
.w470{width:470px;}
.w314{width:314px;}
.w313{width:313px;}
.w1200{width:1200px;}
.w600{width:600px;}
.block{display: block;}
.auto{margin-left: auto;margin-right: auto;}
.mg_t20{margin-top:20px;}
.mg_r20{margin-right:20px;}
.mg_b20{margin-bottom:20px;}
.mg_b10{margin-bottom:10px;}
.mg_l15{margin-left:15px;}
.bd_top_1{border-top:1px solid #dfdfdf;}
.clearfix:after { content: "."; display: block; clear: both; visibility: hidden; line-height: 0; height: 0; }
.clearfix { display: inline-block; }
.special_banner{width:100%;height:430px;background:#aaa url(http://img.biyao.com/files/data0/minisite/9326b81b7e1d4336a3686fbca469fc72/pc/img/b1.jpg) center center no-repeat; display: block; }
.special_wrap{width:1200px;margin:0 auto 20px;}
.special_content{overflow: hidden}
.sw_tit{padding:60px 0 30px 0; text-align: center;}
.sp_c_right ul{margin-left: -14px;overflow: hidden}
.sp_c_right ul li{ float:left;margin-left: 14px; display: inline;border:1px solid #fff;margin-bottom:20px;}
.sp_c_right ul li:hover{border:1px solid #a0a0a0;}
.pos_nav{height:35px;}
.zt_navigation{height:35px;line-height:35px;width:1200px;margin:0 auto;z-index: 100;}
.zt_navigation span{font-size:14px;color:#000;}
.zt_navigation a{font-size:14px;color:#666;padding:0 20px; border-right:1px solid #000;height:21px;line-height:21px;}
.zt_navigation a.last{border:none;}
.zt_navigation a:hover{text-decoration: underline}
.fixed_p{position: fixed;top:0;}
.prd_more{display:block;margin:70px 0;width:474px;height:75px;line-height:75px;border:2px solid #6c4f7e;color:#6c4f7e;font-size: 24px;text-align: center;margin-left: auto;margin-right: auto}
.prd_more:hover{border:2px solid #b48ace;}
.prd_more span{background:url(http://img.biyao.com/files/data0/minisite/9326b81b7e1d4336a3686fbca469fc72/pc/img/link.png) no-repeat;width:13px;height:23px; display:inline-block; vertical-align: middle;margin-left: 10px}
.n_img_box{margin-bottom:10px;}
.n_img_box:last-child{margin-bottom:0}
.n_img_box img{width:100%;height:300px;}