/* transition */
header,
header h1,
header h1 img,
header .logo,
header .logo img,
header nav ul li,
header nav ul li a {
    transition: all 0.3s ease;
    -webkit-transition: all 0.3s ease;
    -moz-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
}
/* Fixed */
header.fixed {
    position: fixed;
    padding-top: 10px;
    background: #fff;
    background: rgba(255,255,255,.9);
    transition: top 0.65s ease-in;
    -webkit-transition: top 0.65s ease-in;
    -moz-transition: top 0.65s ease-in;
    z-index: 9999;
}
 
/* Toggle Button */
.nav_toggle {
    display: none;
    position: absolute;
    right: 25px;
    top: 30px;
    width: 65px;
    height: 21px;
    cursor: pointer;
    z-index: 101;
}
.nav_toggle div {
    position: relative;
}
.nav_toggle span {
    display: block;
    position: absolute;
    height: 4px;
    width: 100%;
    background: #A21564;
    left: 0;
    border-radius: 100px;
    -webkit-transition: .35s ease-in-out;
    -moz-transition: .35s ease-in-out;
    transition: .35s ease-in-out;
}
.nav_toggle span:nth-child(1) {
    top: 0;
}
.nav_toggle span:nth-child(2) {
    top: 17px;
}

@media screen and (max-width: 750px) {
    /* Fixed reset */
    header.fixed {
        padding: 0;
    }
    header nav {
        position: absolute;
        /* 開いてないときは画面外に配置 */
        top: -1018px;
        left: 0;
        width: 100%;
        text-align: center;
        -webkit-transition: .5s ease-in-out;
        -moz-transition: .5s ease-in-out;
        transition: .5s ease-in-out;
        background: #A21564;
    }
    .nav_toggle {
        display: block;
    }
    /* .nav_toggle 切り替えアニメーション */
    .open .nav_toggle span:nth-child(1) {
        top: 11px;
        -webkit-transform: rotate(315deg);
        -moz-transform: rotate(315deg);
        transform: rotate(315deg);
        background: #B53C84;
    }
    .open .nav_toggle span:nth-child(2) {
        top: 11px;
        -webkit-transform: rotate(-315deg);
        -moz-transform: rotate(-315deg);
        transform: rotate(-315deg);
        background: #B53C84;
    }
    /* nav スライドアニメーション */
    .open header nav {
        /* nav top + #mobile-head height */
        -moz-transform: translateY(1018px);
        -webkit-transform: translateY(1018px);
        transform: translateY(1018px);
    }
}

@media screen and (max-width: 480px) {
    .nav_toggle {
        width: 40px;
        top: 20px;
    }
}