.mainmenu .grid6{width:100%;overflow:hidden}
.mainmenu .grid6>li{width:16.6666%;float:left;text-align:center;position:relative;list-style:none}
.mainmenu .grid6>li>a{display:block;line-height:60px;font-size:15px;font-weight:500;color:#333;text-decoration:none}
.mainmenu .grid6>li>a:hover{color:#0077b6}
.mainmenu .grid6>li:last-child>a{color:#0077b6;font-weight:700}
.mainmenu .grid6>li .submenu{display:none;position:absolute;top:100%;left:50%;transform:translateX(-50%);background:#fff;min-width:160px;border-top:2px solid #0077b6;box-shadow:0 4px 12px rgba(0,0,0,.1);z-index:9999;padding:8px 0}
.mainmenu .grid6>li:hover .submenu{display:block}
.mainmenu .grid6>li .submenu a{display:block;padding:9px 16px;font-size:14px;color:#444;text-decoration:none;white-space:nowrap;text-align:left}
.mainmenu .grid6>li .submenu a:hover{background:#f0f8ff;color:#0077b6}.