#goto-top{
    position: absolute;
    top: 0;
}
/*--------------header-style1-----------------*/
.header-style1{
    position: fixed;
    z-index: 999;
    display: block;
    width: 100%;
    top: 0;
    background-color: #FFF;
}
.header-style1.header2{
    box-shadow: 0 0 10px rgba(0,0,0,0.3);
}
.header-style1 .header-box{
    width: 1280px;
    max-width: 100%;
    display: block;
    margin: 0 auto;
    font-size: 0;
    box-sizing: border-box;
    padding: 1.5px 0;
}
.header-style1 .header-logo{
    width: 200px;
    max-width: 100%;
    display: inline-block;
    position: relative;
    vertical-align: middle;
}
.header-style1 .header-menu-box{
    width: calc(100% - 200px);
    display: inline-block;
    vertical-align: middle;
    font-size: 0;
    text-align: right;
}
.header-style1 .header-menu> li{
    display: inline-block;
    vertical-align: middle;
    position: relative;
    margin-right: 60px;
}
.header-style1 .header-menu> li:last-child{
    margin-right: 15px;
}
.header-link-box{
    display: block;
    position: absolute;
    right: 0;
    top: 0;
}
.header-menu-list-box li{
    margin-bottom: 30px
}

.header-menu-title{
    display: block;
    position: relative;
}
.header-menu-title:before{
    content: '/';
    width: 17px;
    height: 20px;
    display: block;
    background-image: url(../img/front/header-menu-hover.png);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    position: absolute;
    left: -10px;
    top: -21px;
    opacity: 0;
    transform: rotateY(-180deg);
    transition-property: opacity,left;
    transition-duration: .3s;
    transition-timing-function: linear;
}
.header-menu-title:after{
    content: '/';
    display: block;
    font-weight: lighter;
    font-size: 16px;
    color: #ddd;
    position: absolute;
    right: -30px;
    top: 0;
}
.header-style1 .header-menu> li:last-child .header-menu-title:after{
    display: none;
}
.header-menu-title-text{
    font-size: 16px;
    display: block;
    position: relative;
    color: #555;
    font-weight: bold;
    letter-spacing: 1px;
    transition: all .3s linear;
}
.header-menu-title-text>span{
    width: 0%;
    height: 1px;
    display: block;
    position: relative;
    transition: all .3s linear;
    opacity: 0;
}
.header-menu-title-text>span:before{
    content: '';
    width: calc(100% + 5px);
    height: 100%;
    display: block;
    position: absolute;
    bottom: -1px;
    left: 0;
    background-color: #017cc2;
}
.header-menu-title-text>span:after{
    content: '';
    border-right: 4px solid transparent;
    border-bottom: 4px solid #017cc2;
    border-left: 4px solid transparent;
    display: block;
    position: absolute;
    bottom: -1px;
    right: -9px;
}


.rwd-menu-list-back{
    display: none;
}
.mask{
    width: 100%;
    height: 100vh;
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    background-color: rgba(0, 0, 0, 0.7);
}

.mask.active{
    display: block;
}

.rwd-menu{
    width: 30px;
    max-width: 100%;
    position: absolute;
    right: 20px;
    z-index: 99999;
    display: none;
    top: calc(50% - 7px);
}
.rwd-menu span{
    width: 100%;
    display: block;
    margin: 0 auto;
    height: 2px;
    background-color: #017cc2;
    position: relative;
}




/*漢堡樣式1*/
.rwd-menu-style1> span:nth-child(even){
    margin: 4px auto;
    transition: all .4s linear;
}
.rwd-menu-style1> span:nth-child(1){
    transform: scale(1);
    transform-origin: left;
    transition: all .4s linear;
}
.rwd-menu-style1> span:nth-child(3){
    transform: scale(1);
    transform-origin: right;
    transition: all .4s linear;
}
.rwd-menu-style1> span:nth-child(4){
    top: -19px;
    transform:  scale(0,1) rotate(-45deg);
}
.rwd-menu-style1> span:nth-child(4){
    display: none;
}
.rwd-menu-style1 .rwd-menu-bth-line{
    transform: rotate(-45deg);
}
.rwd-menu-style1 .rwd-menu-bth-line2{
    transform: rotate(45deg);
}
.rwd-menu-style1 .rwd-menu-bth-line,
.rwd-menu-style1 .rwd-menu-bth-line2{
    position: absolute;
    top: 6px;
    left:0;
    width: 100%;
}
.rwd-menu-style1 .rwd-menu-bth-line span,
.rwd-menu-style1 .rwd-menu-bth-line2 span{
    transform:  scale(0,1);
    transition: all .5s ease;
    position: relative;
}
.rwd-menu-style1.active .rwd-menu-bth-line span,
.rwd-menu-style1.active .rwd-menu-bth-line2 span{
    transform:  scale(1,1) ;
    transition-delay: .1s;
}
.rwd-menu-style1.active> span:nth-child(1),
.rwd-menu-style1.active> span:nth-child(2),
.rwd-menu-style1.active> span:nth-child(3){
    transform: scale(0,1);
}
.rwd-menu-style1.active> span:nth-child(odd){
    transform: scale(0);
    transition: all .4s linear;
    transition-delay: 0s;
}

/*漢堡樣式2*/

.rwd-menu-style2> span:nth-child(4){
    display: none;
}
.rwd-menu-style2> span:nth-child(2){
    display: block;
    margin: 4px auto;
}
.rwd-menu-style2{
    width: 25px;
}
.rwd-menu-style2> span{
    transition: all 0.3s ease-in-out;
}
.rwd-menu-style2 .rwd-menu-bth-line,
.rwd-menu-style2 .rwd-menu-bth-line2{
    display: none;
}
.rwd-menu-style2.active{
    animation: smallbig 0.6s forwards;
}
.rwd-menu-style2.active> span:nth-child(1){
    -webkit-transform: translateY(7px) rotate(45deg);
    -ms-transform: translateY(7px) rotate(45deg);
    -o-transform: translateY(7px) rotate(45deg);
    transform: translateY(7px) rotate(45deg);
}
.rwd-menu-style2.active> span:nth-child(2){
    opacity: 0;
}
.rwd-menu-style2.active> span:nth-child(3){
    -webkit-transform: translateY(-5px) rotate(-45deg);
    -ms-transform: translateY(-5px) rotate(-45deg);
    -o-transform: translateY(-5px) rotate(-45deg);
    transform: translateY(-5px) rotate(-45deg);
}

.rwd-menu-style2.active> span:nth-child(1), 
.rwd-menu-style2.active> span:nth-child(2), 
.rwd-menu-style2.active> span:nth-child(3) {
    -webkit-transition-delay: 0.2s;
    -o-transition-delay: 0.2s;
    transition-delay: 0.2s;
}



@keyframes smallbig{
  0%, 100%{
    -webkit-transform: scale(1);
    -ms-transform: scale(1);
    -o-transform: scale(1);
    transform: scale(1);
  }

  50%{
    -webkit-transform: scale(0);
    -ms-transform: scale(0);
    -o-transform: scale(0);
    transform: scale(0);
  }
}


/*hover*/
.header-style1 .header-menu> li.active .header-menu-title:before,
.header-style1 .header-menu> li:hover .header-menu-title:before{
    left: 0;
    opacity: 1;
    transform: rotateY(0deg);
}
.header-style1 .header-menu> li.active .header-menu-title-text,
.header-style1 .header-menu> li:hover .header-menu-title-text{
    color: #017cc2;
}
.header-style1 .header-menu> li.active .header-menu-title-text>span,
.header-style1 .header-menu> li:hover .header-menu-title-text>span{
    width: 100%;
    opacity: 1;
}
/*------------------------------------------*/

@media only screen and (max-width: 1280px){
    .header-style1 .header-box{
        width: 1200px;
    }
}

@media only screen and (max-width: 1200px){
    .header-style1 .header-box{
        width: 1000px;
    }
    .header-style1 .header-logo{
        width: 100px;
    }
    .header-style1 .header-menu-box{
        width: calc(100% - 100px);
    }
    .header-style1 .header-menu> li{
        margin-right: 30px;
    }
    .header-menu-title:after{
        right: -18px;
    }
    .header-menu-title-text>span:before{
        width: 100%;
    }
    .header-menu-title-text>span:after{
        right: -5px;
    }
}

@media only screen and (max-width: 1000px){
    .header-style1 .header-box{
        width: 95%;
    }
    .rwd-menu{
        display: block;
    }
    .header-style1 .rwd-menu{
        display: block;
    }

    .rwd-header-menu-sytle1 .header-menu{
        width: 280px;
        height: 100vh;
        position: fixed;
        top: 0;
        right: -280px;
        z-index: 3;
        display:         flex;
        display: -webkit-flex;
        align-items: center;
        -webkit-align-items: center;
        justify-content: center;
        -webkit-justify-content: center;
        flex-direction:column;
        background-color: #fff;
        transition: all .3s linear;
        box-shadow: 0 0 10px rgba(0,0,0,0.0);
    }
    .rwd-header-menu-sytle1 .header-menu.open{
        right: 0;
        box-shadow: 0 0 10px rgba(0,0,0,0.3);
    }
   
    .rwd-header-menu-sytle1 .header-menu> li{
        display: block;
        margin: 0;
        margin-bottom: 4vh;
    }
    .rwd-header-menu-sytle1 .header-menu> li:last-child{
        margin-bottom: 0;
    }
    .header-menu-title:after{
        display: none;
    }
    .header-style1 .header-menu> li:last-child{
        margin-right: 0;
    }
    .header-menu-title:before{
        left: -80px;
        top: 0;
    }
    .header-style1 .header-menu> li.active .header-menu-title:before, 
    .header-style1 .header-menu> li:hover .header-menu-title:before {
        left: -30px;
    }
}

@media only screen and (max-width: 550px){
    .header-style1 .header-logo{
        width: 70px
    }
}