.text-center
{
    text-align: center;
}
*
{
    box-sizing: border-box;
    padding: 0;
    margin: 0;
    font-weight: 300;
}
body
{
    font-family: "Microsoft YaHei",sans-serif;
    overflow-x: hidden;
}
.jq22-container
{
    top: 0;
    position: absolute;
    width: 100%;
    overflow: hidden;
}
.nav-open .nav
{
    opacity: 1;
    display: table;
}
body.nav-open .lower-screen
{
    -webkit-transform: scale(.9,.9);
    -ms-transform: scale(.9,.9);
    transform: scale(.9,.9);
}
body.nav-open .nav
{
    -webkit-transform: translateY(0);
    transform: translateY(0);
}
body.nav-open .nav-toggle
{
    box-shadow: none;
}
body.nav-open .nav-toggle:before
{
    width: 5200px;
    height: 5200px;
    cursor: auto;
    background-color: rgba(0,0,0,.9);
}
body.nav-open .nav-toggle .icon
{
    width: 0;
}
body.nav-open .nav-toggle .icon:before
{
    -webkit-transform: translateY(9px) rotate(45deg);
    -ms-transform: translateY(9px) rotate(45deg);
    transform: translateY(9px) rotate(45deg);
}
body.nav-open .nav-toggle .icon:after
{
    -webkit-transform: translateY(-9px) rotate(-45deg);
    -ms-transform: translateY(-9px) rotate(-45deg);
    transform: translateY(-9px) rotate(-45deg);
}
.nav-toggle
{
    width: 60px;
    height: 60px;
    top: 15px;
    right: 15px;
    z-index: 3;
    border-radius: 50%;
    margin: 10px;
    position: fixed;
    cursor: pointer;
    box-shadow: 0 3px 0 rgba(0,0,0,.2);
    -webkit-transition-duration: .66s;
    transition-duration: .66s;
    -webkit-transition-timing-function: swing;
    transition-timing-function: swing;
    display: none;
}
.nav-toggle:before
{
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: rgba(0,0,0,.9);
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    -webkit-transform: translateX(-50%) translateY(-50%);
    -ms-transform: translateX(-50%) translateY(-50%);
    transform: translateX(-50%) translateY(-50%);
    -webkit-transition-duration: .66s;
    transition-duration: .66s;
    -webkit-transition-timing-function: swing;
    transition-timing-function: swing;
}
.nav-toggle .icon
{
    width: 30px;
    height: 4px;
    background-color: #fff;
    border-radius: 2px;
    position: absolute;
    top: 28px;
    left: 15px;
    -webkit-transition-duration: .5s;
    transition-duration: .5s;
    transiting-timing-function: swing;
}
.nav-toggle .icon:before, .nav-toggle .icon:after
{
    width: 30px;
    height: 4px;
    background-color: #fff;
    border-radius: 2px;
    content: "";
    position: absolute;
    left: 0;
    -webkit-transition-duration: .5s;
    transition-duration: .5s;
    -webkit-transition-timing-function: swing;
    transition-timing-function: swing;
}
.nav-toggle .icon:before
{
    top: -9px;
}
.nav-toggle .icon:after
{
    top: 9px;
}
.lower-screen
{
    padding: 60px 0 20px 0;
    overflow-y: scroll;
    height: 450px;
    -webkit-transition-duration: .66s;
    transition-duration: .66s;
    -webkit-transition-timing-function: swing;
    transition-timing-function: swing;
    -webkit-transform: translate3d(0,0,0);
    transform: translate3d(0,0,0);
}
.lower-screen::-webkit-scrollbar
{
    display: none;
}
.nav ul
{
    width: 50%;
    margin: auto;
}
.nav
{
    position: fixed;
    top: 80px;
    left: 50%;
    opacity: 0;
    width: 960px;
    height: 100%;
    margin-left: -480px;
    z-index: 9;
    padding: 0 20px;
    -webkit-transition-duration: .66s;
    transition-duration: .66s;
    -webkit-transition-timing-function: swing;
    transition-timing-function: swing;
    -webkit-transform: translateY(100%);
    transform: translateY(100%);
}
.nav ul li
{
    list-style: none;
}
.nav ul li a
{
    display: block;
    padding: 4% 0;
    text-align: center;
    color: #fff;
    text-decoration: none;
    font-size: 1.8rem;
    -webkit-transition-duration: .25s;
    transition-duration: .25s;
}
.nav_en
{
    font-size: 14px;
    color: #fff;
    opacity: .38;
}
.nav ul:hover li a
{
    opacity: .5;
}
.nav ul:hover li:hover a
{
    opacity: 1;
}/*<1200*/
@media screen and (max-width: 1199px)
{
    .nav-toggle
    {
        display: flex;
    }
}