.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(0.9, 0.9);
      -ms-transform: scale(0.9, 0.9);
          transform: scale(0.9, 0.9);
}
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(0,0,0,0.9);
}
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, 0.2);
  -webkit-transition-duration: 0.66s;
  transition-duration: 0.66s;
  -webkit-transition-timing-function: swing;
  transition-timing-function: swing;
	display: none;
}
.nav-toggle:before {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: rgba(0,0,0,0.9);
  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: 0.66s;
  transition-duration: 0.66s;
  -webkit-transition-timing-function: swing;
  transition-timing-function: swing;
}
.nav-toggle .icon {
  width: 30px;
  height: 4px;
  background-color: white;
  border-radius: 2px;
  position: absolute;
  top: 28px;
  left: 15px;
  -webkit-transition-duration: 0.5s;
          transition-duration: 0.5s;
  transiting-timing-function: swing;
}
.nav-toggle .icon:before,
.nav-toggle .icon:after {
  width: 30px;
  height: 4px;
  background-color: white;
  border-radius: 2px;
  content: "";
  position: absolute;
  left: 0;
  -webkit-transition-duration: 0.5s;
          transition-duration: 0.5s;
  -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: 0.66s;
          transition-duration: 0.66s;
  -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: 0.66s;

transition-duration: 0.66s;

-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: 0.25s;
  transition-duration: 0.25s;
}
.nav_en{ font-size:14px; color: #fff; opacity: 0.38;}
.nav ul:hover li a {
  opacity: 0.5;
}
.nav ul:hover li:hover a {
  opacity: 1;
}

/*<1200*/
@media screen and (max-width:1199px) 
{
	
	
	.nav-toggle {display: flex;}
	
}