.banner{ position:relative; height:686px; z-index:1; }
.slide-main{height:686px;position:relative; }
.prev,.next{display:block;position:absolute;z-index:222;top:250px;overflow:hidden;cursor:pointer;opacity:0.6;-moz-opacity:0.6;filter:alpha(opacity=60);_border:1px solid none;}
.prev{left:70px;}
.next{right:70px;}
.prev:hover,.next:hover,.nav-main a:hover,.nav-main a.cur{opacity:1;-moz-opacity:1;filter:alpha(opacity=100);}
.item{display:block;width:100%;height:15px;position:absolute;z-index:124;bottom:36px;left:0;text-align:center;}
.item a{display:inline-block;width:56px;height:6px;margin-right:11px;background:#333;opacity:0.8;-moz-opacity:0.6;filter:alpha(opacity=60);overflow:hidden;}
.item a.cur{background:#fff;}
.slide-box,.slide{display:block;width:100%;height:686px;overflow:hidden;}
.slide-box{position:relative;}
.slide{display:none;height:686px;position:relative;position:absolute;z-index:8;}
#bgstylea{background:url(../images/f1.jpg) no-repeat center top; }
#bgstyleb{background:url(../images/f2.jpg) no-repeat center top; }
#bgstylec{background:url(../images/f3.jpg) no-repeat center top; }
#bgstyled{background:url(../images/f4.jpg) no-repeat center top; }
.slide a{display:block;cursor:pointer;}