.flexbox{display: -webkit-flex;display: flex;-webkit-justify-content: space-between;justify-content: space-between;}

.nav{height:58px; background:#fff;}
.nav a{line-height:58px; color:#fff; font-size:16px; padding:0 30px; float:left;}
/* .nav a:hover{ color:#000; background:#e5e5e5;} */
.nav ul {text-align: center;}
.nav li a {display: block; padding:0 30px; color: #fff;}
.nav li { display: inline-block;position: relative;}
.menu,.menu ul { list-style: none; padding: 0; margin: 0;}
.menu { height:62px;}
.menu li { /* e6e5e5 */
    background: -moz-linear-gradient(#669ced, #4e89e3);
    background: -ms-linear-gradient(#669ced, #4e89e3);
    background: -ms-linear-gradient(#41790e6e5e5, #);
    background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #669ced), color-stop(100%, #4e89e3));
    background: -o-linear-gradient(#669ced, #4e89e3);
    filter: progid: DXImageTransform.Microsoft.gradient(startColorstr='#669ced', endColorstr='#4e89e3');
    -ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr='#669ced', endColorstr='#4e89e3')";
}
.menu> li { width: 171px;display: block; background:#fff; position: relative;float: left;}
.menu a {  color: #1d1d1d; font-size:18px; display: block;  width: 100%; text-align: center; text-decoration: none; text-transform: uppercase;box-sizing: border-box;}
.menu a:hover{font-weight:bold;}
.menu li ul li a {min-width:92px;}
/* .menu li:hover {  
    background: -moz-linear-gradient(#e6e5e5, #bfbfbf);
    background: -ms-linear-gradient(#e6e5e5, #bfbfbf);
    background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #e6e5e5), color-stop(100%, #bfbfbf));
    background: -webkit-linear-gradient(#e6e5e5, #bfbfbf);
    background: -o-linear-gradient(#e6e5e5, #bfbfbf);
    filter: progid: DXImageTransform.Microsoft.gradient(startColorstr='#e6e5e5', endColorstr='#bfbfbf');
    -ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr='#e6e5e5', endColorstr='#bfbfbf')";
} */
.submenu {width: 296px;left:50%;max-height: 0;position: absolute;top: 100%;z-index: 0;-webkit-perspective: 400px;-moz-perspective: 400px;-ms-perspective: 400px;-o-perspective: 400px;perspective: 400px;margin-left: -148px!important;}
.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 16px; font-size:12px; color:#fff; text-align:center; line-height:35px;}
.menu .submenu li:hover a {border-radius: 0; color:#fff;}
.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;
}