.layer{position:fixed;width:100%;height:100%;background-color:#000;opacity:0.5;z-index:10000;left:0;top:0;}
.hint_show1{width:888px;height:685px;background:url(../images/yd1_02.png) no-repeat;position:absolute;z-index:10001;top:0;left:50%;margin-left:-612px;}
.hint_show2{width:888px;height:318px;background:url(../images/yd2_02.png) no-repeat;position:absolute;z-index:10001;top:0;left:50%;margin-left:-612px;}
.hint_show3{width:924px;height:627px;background:url(../images/yd3_02.png) no-repeat;position:absolute;z-index:10001;top:100px;left:50%;margin-left:-605px;}
.hint_show1 a,.hint_show2 a,.hint_show3 a{width:125px;height:38px;position:absolute;z-index:10002;}
.hint_show1 span,.hint_show2 span,.hint_show3 span{width:38px;height:38px;cursor:pointer;position:absolute;z-index:10002;}
.hint_show1 a{left:527px;top:406px;}
.hint_show2 a{left:447px;top:240px;}
.hint_show3 a{left:379px;top:561px;}
.hint_show1 span{left:852px;top:224px;}
.hint_show2 span{left:708px;top:93px;}
.hint_show3 span{left:639px;top:405px;}