@charset "utf-8";.pst{position:relative}.parent_scrn{margin:20px auto 0;width:785px;height:520px;padding-bottom:21px;overflow:hidden}.scrn_ban{width:785px;height:520px;overflow:hidden}.scrn_ban ul{list-style-type:none;width:785px;height:520px;overflow:hidden}.scrn_ban ul li{float:left}.scrn_common{width:100%;height:91px;position:absolute;top:48%;left:0}.scrn_common a{display:block;width:30px;height:91px}.scrn_pre{position:absolute;top:0;left:65px;background:url(product/pre.png) no-repeat;opacity:.5;filter:alpha(opacity=50)}.scrn_next{position:absolute;top:0;right:65px;background:url(product/next.png) no-repeat;opacity:.5;filter:alpha(opacity=50)}.scrn_pre:hover,.scrn_next:hover{opacity:1;filter:alpha(opacity=100)}.scrn_ban .control{width:130px;position:absolute;top:94%;left:48%;margin-left:-40px}.scrn_ban .control li{float:left;margin-left:10px;width:13px;height:13px;border-radius:50%;cursor:pointer;background:#cbcbcb}.scrn_ban .control li a{display:none}.scrn_ban .control li.current{background:#15abef}