header{
    box-shadow: rgba(0,0,0,0.8) 2px 2px 2px;
    position: relative;
    z-index: 9999;
    
}

header.index-header{
    box-shadow: rgba(0,0,0,0) 0px 0px 0px;
}
.header-box {
    width: 1300px;
    max-width: 100%;
    display: block;
    margin: 0 auto;
    padding: 10px 0;
    font-size: 0;
    position: relative;
}

.header-logo{
    width: 400px;
    max-width: 100%;
    display: inline-block;
    vertical-align: middle;
}

.header-logo-img{
    width: 100%;
    font-size: 0;
}

.header-logo-img img{
    display: inline-block;
    vertical-align: middle;
}
.header-logo-title-box{
    display: inline-block;
    vertical-align: middle;
    position: relative;
    padding-left: 10px;
}
.header-logo-en{
    font-size: 20px;
    transition: all .2s linear;
    font-family: 'Teko';
    letter-spacing: 1px;
    position: relative;
    transition-delay: .2s;
    top: 0;
}
.header-logo-ch{
    width: 100%;
    top: 12px;
    left: 0;
    font-size: 16px;
    position: absolute;
    display: block;
    transform: scale(0);
    transition: all .2s linear;
    color: #d00000;
    letter-spacing: 1px;
    padding-left: 10px;
    text-align: left;
}
.header-menu-box{
    width: calc(100% - 400px);
    display: inline-block;
    vertical-align: middle;
    text-align: right;
}

.header-menu-box li{
    width: auto;
    max-width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
    display: inline-block;
    font-size: 18px;
    vertical-align: middle;
    position: relative;
    transition: all .2s linear;
}
.header-menu-list-title{
    font-size: 22px;
    display: block;
    top: 0;
    transition: all .2s linear;
    font-family: 'Teko';
    letter-spacing: 1px;
    position: relative;
    transition-delay: .2s;
}
.header-menu-list-title-ch{
    width: 100%;
    top: 12px;
    left:0;
    font-size: 16px;
    position: absolute;
    display: block;
    transform: scale(0);
    transition: all .2s linear;
    color: #d00000;
    letter-spacing: 1px;
    text-align: center;
}




.rwd-menu{
    display: none;
}
.rwd-menu span{
    width: 30px;
    max-width: 100%;
    display: none;
    margin: 0 auto;
    height: 4px;
    transition: all .4s linear; 
    background-color:  #1b3d1e;
    position: relative;
}
.rwd-menu span:nth-child(2){
    margin: 5px auto;
}

.rwd-menu.active span:nth-child(2){
    display: none;
}
.rwd-menu.active span:nth-child(1){
    transform: rotate(45deg);
    top: 4px;
}
.rwd-menu.active span:nth-child(3){
    transform: rotate(-45deg);
}

.mask{
    width: 100%;
    height: 100vh;
    position: fixed;
    top: 0;
    z-index: 10;
    background-color: rgba(0,0,0,0.0);
    display: none;
}
.mask.active{
    display: block;
}