.step_box{width:340px;float:left;}
.step_box .btn{display:block; text-align:center;color:#f8ab3f;font-weight:bold;margin:0 auto;}
.btn_big{width:162px;height:47px;background-position:-242px -36px;font-size:18px;line-height:40px;}
.btn_big:hover{ background-position:-242px -87px;}
.step_box .arrow{width:30px;height:30px;margin:10px auto;display:block;background-position:-417px -98px;}
.step_box .txt{font-size:18px; text-align:center;padding-bottom:10px;font-weight:bold;}
.btn_small{width:113px;height:33px;line-height:30px; background-position:-243px 0;float:left;}
.btn_small:hover{ background-position:-359px 0;}
.ad_box{width:298px;float:right;}
.ad_line{display:block;padding:4px;background:#573429;margin-top:6px;}
.tit_item{padding:30px 0 5px 0;font-size:16px;font-weight:bold;color:#af1f1d;}
.swicth_box{position:relative;width:500px;padding:20px 40px;margin:0 auto;}

.picroll_t{display:none;}