@charset "utf-8";*html body{background-image:url(about:blank);background-attachment:fixed;}*html .treeBoxv1,*html .treeNavv1{top:expression(documentElement.scrollTop);height:expression((documentElement.clientHeight));position:absolute;}.treeNavv1{width:960px;height:72px!important;position:fixed;top:0;left:0;z-index:2;background:#FFF;}.treeBoxv1{width:960px;height:100%;background:#FFF;position:fixed;top:0;left:0;z-index:1;overflow:hidden;}.treeMainv1{width:720px;height:100%;position:relative;top:82px;left:240px;z-index:1;background:#FFF;}.btlogov1{height:32px;float:left;margin:5px 0 0 10px;display:inline;}.btlogov1 a.bt_logo{background:url(http://image.bitautoimg.com/themes/2009/common/images/logo_bt.png) no-repeat;width:100px;height:27px;float:left;line-height:1000px;overflow:hidden;}.btlogov1 a.bt_baoyang{background:url(http://image.bitautoimg.com/themes/2009/common/images/icon_nav_baoyang.png) no-repeat;margin:0 0 0 10px;width:48px;height:27px;float:left;line-height:1000px;overflow:hidden;}.btlogov1 a.bt_dayi{background:url(http://image.bitautoimg.com/themes/2009/common/images/icon_nav_dayi.png) no-repeat;margin:0 0 0 10px;width:48px;height:27px;float:left;line-height:1000px;overflow:hidden;}.btlogov1 a.bt_kb{background:url(http://image.bitautoimg.com/themes/2009/common/images/icon_nav_koubei.png) no-repeat 0 0;width:48px;margin:0 0 0 10px;height:27px;float:left;line-height:1000px;overflow:hidden;}.btlogov1 a.bt_chexing{width:48px;float:left;margin:0 0 0 10px;display:inline;background:url(http://image.bitautoimg.com/themes/2009/common/images/icon_nav_car.png) no-repeat 0 0;line-height:1000px;height:27px;overflow:hidden;}.btlogov1 a.bt_shipin{width:48px;float:left;margin:0 0 0 10px;display:inline;background:url(http://image.bitautoimg.com/themes/2009/common/images/icon_nav_shipin.png) no-repeat 0 0;line-height:1000px;height:27px;overflow:hidden;}.btlogov1 a.bt_baojia{width:48px;float:left;margin:0 0 0 10px;display:inline;background:url(http://image.bitautoimg.com/themes/2009/common/images/icon_nav_baojia.png) no-repeat 0 0;line-height:1000px;height:27px;overflow:hidden;}.btlogov1 a.bt_jingxiaoshang{width:80px;float:left;margin:0 0 0 10px;display:inline;background:url(http://image.bitautoimg.com/themes/2009/common/images/icon_nav_jingxiaoshang.png) no-repeat 0 0;line-height:1000px;height:27px;overflow:hidden;}.btlogov1 a.bt_hangqing{width:48px;float:left;margin:0 0 0 10px;display:inline;background:url(http://image.bitautoimg.com/autoalbum/V2.1/images/icon_nav_hangqing.png) no-repeat 0 0;line-height:1000px;height:27px;overflow:hidden;}.btlogov1 a.bt_pingce{width:48px;float:left;margin:0 0 0 10px;display:inline;background:url(http://image.bitautoimg.com/autoalbum/V2.1/images/icon_nav_pingce.png) no-repeat 0 0;line-height:1000px;height:27px;overflow:hidden;}.btlogov1 a.bt_tujie{width:48px;float:left;margin:0 0 0 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