#dayu_menul {text-align:left;}/*定义整个ul菜单的行高和背景色*/
/*==================一级目录===================*/
#dayu_menul a {width:200px;display:block;}/*Width(一定要)，否则下面的Li会变形*/
#dayu_menul li{float:left;/*float：left,本不应该设置，但由于在Firefox不能正常显示继承dayu_nav的width,限制宽度，li自动向下延伸*/}
/*==============================*/
#dayu_d dd a{display:block;text-decoration:none;padding-left:25px;}
#dayu_menul ul.navlist { display: none;}

#dayu_menul li{letter-spacing:1px;line-height:26px;}
#dayu_menul a:hover{background:url(/img/l3.gif) no-repeat #c00;color:#fff;}
#dayu_menul .nav_d{letter-spacing:1px;line-height:26px;background:url(/img/nav_d.gif) no-repeat #ddd;font-weight:bold;margin-bottom:4px;}
#dayu_menul .nav_d a{color:#000;text-align:left;}
#dayu_menul .nav_d a:hover{background:url(/img/l4.gif) no-repeat #DA2D37;color:#fff;}

#dayu_menul .nav_d2{letter-spacing:1px;line-height:26px;background:#ddd;background:url(/img/l2.gif) no-repeat;font-weight:bold;margin-bottom:4px;}
#dayu_menul .nav_d2 a{color:#000;text-align:left;}
#dayu_menul .nav_d2 a:hover{background:url(/img/l3.gif) no-repeat #c00;color:#fff;}
#dayu_menul .nav_d2 .don{background:#EA474F;color:#fff;}
#dayu_menul .nav_s{letter-spacing:1px;line-height:24px;font-size:12px;background:url(/img/-.gif) 175px center no-repeat #fcfcfc;border:0;border-bottom:1px dashed #ddd;padding:0;width:227px;margin-bottom:0px;}
#dayu_menul .nav_s a{font-size:12px;font-weight:normal;color:#111;text-align:left;}
#dayu_menul .nav_s a:hover{background:url(/img/arr1.gif) 176px center no-repeat #c00;color:#fff;}
#dayu_menul .nav_s .son{background:#EA474F;color:#fff;}