/* mainbanner */
.mainbanner{ height:598px; overflow:hidden; position:relative;}
.mainbanner_window{left:50%; width:1920px; height:598px; overflow:hidden; margin-left:-960px; position:absolute;}
.mainbanner_window ul{ width:999999px; height:598px;position:relative;}
.mainbanner_window li{ width:1920px; height:598px; text-align:center; float:left;display:inline;}
.mainbanner_window li.bkg_1{ background:url("../images/ban_01.jpg") no-repeat;}
.mainbanner_window li.bkg_2{ background:url("../images/ban_02.jpg") no-repeat;}
.mainbanner_window li.bkg_3{ background:url("../images/ban_03.jpg") no-repeat;}
.mainbanner_window li.bkg_4{ background:url("../images/ban_04.jpg") no-repeat;}

.mainbanner_list{ position:absolute; left:50%; top:535px; width:500px; height:30px; margin-left:-30px; }
.mainbanner_list li{ float:left; width:30px; height:22px; overflow:hidden; display:inline;}
.mainbanner_list a{ background:url("../images/index_04.png") no-repeat; width:22px; height:22px; float:left; display:inline-block;}
.mainbanner_list li.active a{ background:url("../images/index_03.png") no-repeat;text-decoration:none;}
.mainbanner_list li a:hover{ background:url("../images/index_03.png") no-repeat;text-decoration:none;}