header {
  background-color: #660080;
  margin: 0 auto; 
  height: 76px;
  text-align: center;
}

ul.topnav {
  margin: 0;
  padding: 0;
  text-align: left;
  display: block;
  list-style-type: none;
  background-color: #660080;
  position: fixed;
  width: 100%;
  z-index: 40;
  font-family: SourceHanSansSCMedium;/*SourceHanSansTWHKMedium;*/
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
  font-size: 0;
}
ul.topnav .lang-cn {
  font-family: SourceHanSansSCMedium;
}
ul.topnav li {
  display: inline;

}

ul.topnav > li > a {
  display: inline-block;
  color: #EAE5F9;
  text-align: center;
  padding: 22px 30px;
  text-decoration: none;
  transition: 0.3s;
  font-size: 18px;
}
ul.topnav > li > a .lang-en {
  font-size: 16px;
}

ul.topnav li.menu-item a:hover {background-color: #7C1EAA; color:#fff}
ul.topnav li.menu-item a.active {background-color: #7C1EAA; color:#fff}

ul.topnav li.icon {display: none;}

ul.topnav .logo {
  top:0;
  display: inline;
  position: relative;
  margin-right: 15%;
  left: 5%;
}
ul.topnav .logo a{
  padding:0;
}
ul.topnav .logo img {
  position: absolute;
  left: 5%;
}

ul.tabs#tab-language {
  position: absolute;
  right: 25px;
  top: 18px;
  font-family: SourceHanSansSCLight;
}
ul.tabs#tab-language > li.active {
  font-family: SourceHanSansSCBold;
}
.tabs#tab-language a{
  color: #fff;
}
.tabs#tab-language li:not(:last-child) {
  border-right: 1px solid #fff;
}

@media screen and (max-width:1000px) {
  ul.tabs#tab-language {
    display: inline-block;
    margin: 0 auto;
    position: relative;
    left: 0;
  }
  ul.tabs#tab-language.hide {
    display: none;
  }
  ul.topnav {
    text-align: center;
  }
  ul.topnav .logo {
    position: absolute;
  }
  
  ul.topnav > li{display: none;}
  ul.topnav li.icon {
    float: right;
    display: inline-block;
  }
  ul.topnav .logo img{
    width: 65px;
    height: 65px;
    margin-left: 15px;
  }
}

@media screen and (max-width:1000px) {
  ul.topnav.responsive li.icon {
    position: absolute;
    right: 0;
    top: 0;
  }
  ul.topnav.responsive li {
    float: none;
    display: inline;
  }
  ul.topnav.responsive li a {
    display: block;
    text-align: left;
  }
}

#nav-icon1 {
  width: 30px;
  height: 23px;
  position: relative;
  margin: 0px auto;
  padding: 38px 18px;
  top: 25px;
  right: 25px;
  -webkit-transform: rotate(0deg);
  -moz-transform: rotate(0deg);
  -o-transform: rotate(0deg);
  transform: rotate(0deg);
  -webkit-transition: .5s ease-in-out;
  -moz-transition: .5s ease-in-out;
  -o-transition: .5s ease-in-out;
  transition: .5s ease-in-out;
  cursor: pointer;
}

#nav-icon1 span {
  display: block;
  position: absolute;
  height: 2px;
  width: 100%;
  background: #fff;
  border-radius: 5px;
  opacity: 1;
  left: 0;
  -webkit-transform: rotate(0deg);
  -moz-transform: rotate(0deg);
  -o-transform: rotate(0deg);
  transform: rotate(0deg);
  -webkit-transition: .25s ease-in-out;
  -moz-transition: .25s ease-in-out;
  -o-transition:  .25s ease-in-out;
  transition: .25s ease-in-out;
}

#nav-icon1 span:nth-child(1) {
  top: 0px;
}

#nav-icon1 span:nth-child(2) {
  top: 10px;
}

#nav-icon1 span:nth-child(3) {
  top: 20px;
}

#nav-icon1.open span:nth-child(1) {
  top: 10px;
  -webkit-transform: rotate(135deg);
  -moz-transform: rotate(135deg);
  -o-transform: rotate(135deg);
  transform: rotate(135deg);
}

#nav-icon1.open span:nth-child(2) {
  opacity: 0;
  left: -60px;
}

#nav-icon1.open span:nth-child(3) {
  top: 10px;
  -webkit-transform: rotate(-135deg);
  -moz-transform: rotate(-135deg);
  -o-transform: rotate(-135deg);
  transform: rotate(-135deg);
}