.nav{height:99px; background:#f8f8f8;}
.nav a{line-height:99px; color:#fff; font-size:16px; padding:0 20px;}
/* .nav a:hover{ color:#000; background:#e5e5e5;} */
.nav ul {text-align: center;}
.nav li a {display: block; padding:0 20px; color: #000;}
.nav li { display: inline-block;position: relative;}
.menu,.menu ul { list-style: none; padding: 0; margin: 0;}
.menu { height:99px; float:right;}
.submenu li { 
    background: -moz-linear-gradient(#df7f2d, #dd6b09);
    background: -ms-linear-gradient(#df7f2d, #dd6b09);
    background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #df7f2d), color-stop(100%, #dd6b09));
    background: -o-linear-gradient(#df7f2d, #dd6b09);
    filter: progid: DXImageTransform.Microsoft.gradient(startColorstr='#df7f2d', endColorstr='#dd6b09');
    -ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr='#df7f2d', endColorstr='#dd6b09')";
}
.menu> li {  display: inline-block; position: relative;}
.menu a {  color: #fff; display: block;  padding: 0 20px; text-decoration: none; text-transform: uppercase;}
.menu li ul li a {min-width:100px;}
.menu li:hover {  color:#fff;
    background: -moz-linear-gradient(#db6f12, #dd6b09);
    background: -ms-linear-gradient(#db6f12, #dd6b09);
    background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #db6f12), color-stop(100%, #dd6b09));
    background: -webkit-linear-gradient(#db6f12, #dd6b09);
    background: -o-linear-gradient(#db6f12, #dd6b09);
    filter: progid: DXImageTransform.Microsoft.gradient(startColorstr='#db6f12', endColorstr='#dd6b09');
    -ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr='#db6f12', endColorstr='#dd6b09')";
}
.nav li:hover a{color:#fff!important;}
.submenu {left: 0;max-height: 0;position: absolute;top: 100%;z-index: 0;-webkit-perspective: 400px;-moz-perspective: 400px;-ms-perspective: 400px;-o-perspective: 400px;perspective: 400px;}
.submenu li {opacity: 0;-webkit-transform: rotateY(90deg);-moz-transform: rotateY(90deg);-ms-transform: rotateY(90deg);-o-transform: rotateY(90deg);transform: rotateY(90deg);-webkit-transition: opacity .4s, -webkit-transform .5s;-moz-transition: opacity .4s, -moz-transform .5s;-ms-transition: opacity .4s, -ms-transform .5s;-o-transition: opacity .4s, -o-transform .5s;transition: opacity .4s, transform .5s;}
.submenu li a{padding: 0 10px; font-size:12px; line-height:40px; color:#fff;}
.menu .submenu li:hover a {border-radius: 0;}
.menu> li:hover .submenu,
.menu> li:focus .submenu {max-height: 2000px;z-index: 10;}
.menu> li:hover .submenu li,
.menu> li:focus .submenu li {
    opacity: 1;
    -webkit-transform: none;
    -moz-transform: none;
    -ms-transform: none;
    -o-transform: none;
    transform: none;
}
.menu li:hover .submenu li:nth-child(1) {
    -webkit-transition-delay: 0s;
    -moz-transition-delay: 0s;
    -ms-transition-delay: 0s;
    -o-transition-delay: 0s;
    transition-delay: 0s;
}
.menu li:hover .submenu li:nth-child(2) {
    -webkit-transition-delay: 50ms;
    -moz-transition-delay: 50ms;
    -ms-transition-delay: 50ms;
    -o-transition-delay: 50ms;
    transition-delay: 50ms;
}
.menu li:hover .submenu li:nth-child(3) {
    -webkit-transition-delay: 100ms;
    -moz-transition-delay: 100ms;
    -ms-transition-delay: 100ms;
    -o-transition-delay: 100ms;
    transition-delay: 100ms;
}
.menu li:hover .submenu li:nth-child(4) {
    -webkit-transition-delay: 150ms;
    -moz-transition-delay: 150ms;
    -ms-transition-delay: 150ms;
    -o-transition-delay: 150ms;
    transition-delay: 150ms;
}
.menu li:hover .submenu li:nth-child(5) {
    -webkit-transition-delay: 200ms;
    -moz-transition-delay: 200ms;
    -ms-transition-delay: 200ms;
    -o-transition-delay: 200ms;
    transition-delay: 200ms;
}
.menu li:hover .submenu li:nth-child(6) {
    -webkit-transition-delay: 250ms;
    -moz-transition-delay: 250ms;
    -ms-transition-delay: 250ms;
    -o-transition-delay: 250ms;
    transition-delay: 250ms;
}
.menu li:hover .submenu li:nth-child(7) {
    -webkit-transition-delay: 300ms;
    -moz-transition-delay: 300ms;
    -ms-transition-delay: 300ms;
    -o-transition-delay: 300ms;
    transition-delay: 300ms;
}
.menu li:hover .submenu li:nth-child(8) {
    -webkit-transition-delay: 350ms;
    -moz-transition-delay: 350ms;
    -ms-transition-delay: 350ms;
    -o-transition-delay: 350ms;
    transition-delay: 350ms;
}
.submenu li:nth-child(1) {
    -webkit-transition-delay: 350ms;
    -moz-transition-delay: 350ms;
    -ms-transition-delay: 350ms;
    -o-transition-delay: 350ms;
    transition-delay: 350ms;
}

.submenu li:nth-child(2) {
    -webkit-transition-delay: 300ms;
    -moz-transition-delay: 300ms;
    -ms-transition-delay: 300ms;
    -o-transition-delay: 300ms;
    transition-delay: 300ms;
}

.submenu li:nth-child(3) {
    -webkit-transition-delay: 250ms;
    -moz-transition-delay: 250ms;
    -ms-transition-delay: 250ms;
    -o-transition-delay: 250ms;
    transition-delay: 250ms;
}

.submenu li:nth-child(4) {
    -webkit-transition-delay: 200ms;
    -moz-transition-delay: 200ms;
    -ms-transition-delay: 200ms;
    -o-transition-delay: 200ms;
    transition-delay: 200ms;
}

.submenu li:nth-child(5) {
    -webkit-transition-delay: 150ms;
    -moz-transition-delay: 150ms;
    -ms-transition-delay: 150ms;
    -o-transition-delay: 150ms;
    transition-delay: 150ms;
}

.submenu li:nth-child(6) {
    -webkit-transition-delay: 100ms;
    -moz-transition-delay: 100ms;
    -ms-transition-delay: 100ms;
    -o-transition-delay: 100ms;
    transition-delay: 100ms;
}

.submenu li:nth-child(7) {
    -webkit-transition-delay: 50ms;
    -moz-transition-delay: 50ms;
    -ms-transition-delay: 50ms;
    -o-transition-delay: 50ms;
    transition-delay: 50ms;
}

.submenu li:nth-child(8) {
    -webkit-transition-delay: 0s;
    -moz-transition-delay: 0s;
    -ms-transition-delay: 0s;
    -o-transition-delay: 0s;
    transition-delay: 0s;
}