header .header_logo {
    position: fixed;
    top: 40px;
    left: 60px;
    display: flex;
    align-items: center;
    z-index: 60;
}
header .header_logo img {
    width: 185px;
    height: auto;
}
header .header_logo .logo_bl {
    display: none;
}
header nav {
    position: fixed;
    top: 0;
    right: -150vw;
    z-index: 50;
    width: 50%;
    min-width: 500px;
    height: 100vh;
    background-image: url(../img/bg_menu.png);
    background-repeat: no-repeat;
    background-size: cover;
    transition: 1.5s;
}
header nav .nav_inner {
    overflow-y: auto;
    height: 100vh;
    padding: 12%;
}
header nav ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 0 28px;
}
header nav ul li {
    filter: blur(8px);
    transition: ease-in-out;
}
header nav ul li.blur {
    animation-name: blur;
    animation-delay: .5s;
    animation-duration: 1.5s;
    animation-fill-mode: forwards;
    animation-timing-function: ease-out;
}
header nav ul li a {
    padding: 8px;
    color: #DFDFDF;
    font-family: "acumin-proo", sans-serif;
    font-size: clamp(26px,3vw,30px);
    transition: .5s;
}
header nav ul li a::before {
    display: block;
    content: attr(data-desc);
    font-family: "Noto Sans JP", sans-serif;
    font-size: 14px;
    line-height: 1.4;
}
header nav ul li a:hover {
    opacity: .5;
}
header .contact_box {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 58px;
}
header .contact_box a {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 20px;
    width: 100%;
    height: 130px;
    background: #3C3C3C;
    color: #DFDFDF;
    box-shadow: 0 2px 6px rgba(0, 0, 0, .25);
    filter: blur(8px);
    transition: .5s;
}
header .contact_box a.blur {
    animation-name: blur;
    animation-delay: 1s;
    animation-duration: 1.5s;
    animation-fill-mode: forwards;
    animation-timing-function: ease-out;
}
header .contact_box a:hover {
    background: #2F2F2F;
}
header .contact_box a p {
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
}
header .contact_box a.btn_tel img {
    width: 30px;
    height: auto;
}
header .contact_box a.btn_tel {
    font-size: clamp(10px,1.2vw,12px);
}
header .contact_box a.btn_tel span {
    font-size: clamp(30px,3vw,37px);
    font-weight: 600;
    line-height: 1.3;
}
header .contact_box a.btn_mail img {
    width: 28px;
    height: auto;
}
header .contact_box a.btn_mail p {
    font-size: clamp(18px,1.8vw,22px);
    font-weight: 500;
}
header .menu_other {
    padding: 28px;
}
header .menu_other a {
    color: #fff;
    font-size: clamp(13px,1.5vw,16px);
    filter: blur(8px);
    transition: .5s;
}
header .menu_other a.blur {
    animation-name: blur;
    animation-delay: 1.2s;
    animation-duration: 1.5s;
    animation-fill-mode: forwards;
    animation-timing-function: ease-out;
}
header .menu_other a:hover {
    opacity: .5;
}
header .menu_toggle {
    position: fixed;
    top: 20px;
    right: 60px;
    z-index: 60;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}
header .menu_toggle .toggle_txt {
    overflow: hidden;
    height: 30px;
    text-align: center;
}
header .menu_toggle .toggle_txt span {
    display: block;
    color: #fff;
    font-size: 16px;
    font-weight: 300;
    transition: 1s;
}
header .menu_toggle .ic_menu {
    position: relative;
    width: 29px;
    height: 29px;
    border-radius: 50%;
    border: 1px solid #fff;
    transition: .8s;
}
header .menu_toggle .ic_menu span {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
    display: inline-block;
    width: 13px;
    height: 1px;
    background: #fff;
    transition: .8s;
}
header .menu_toggle .ic_menu span:nth-child(2) {
    transform: translate(-50%,-50%) rotate(90deg);
}
header .menu_bg {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 5;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0);
    pointer-events: none;
}
/* bk */
header .menu_toggle.bk .toggle_txt span {
    color: #333;
}
header .menu_toggle.bk .ic_menu {
    border-color: #333;
}
header .menu_toggle.bk .ic_menu span {
    background: #333;
}
/* open */
header .menu_toggle.open .toggle_txt span {
    color: #fff;
}
header .menu_toggle.open .toggle_txt .menu_txt {
    transform: translateY(-30px);
}
header .menu_toggle.open .toggle_txt .close_txt {
    transform: translateY(-30px);
}
header .menu_toggle.open .ic_menu {
    border-color: #fff;
}
header .menu_toggle.open .ic_menu span {
    background: #fff;
}
header .menu_toggle.open .ic_menu span:nth-child(1) {
    opacity: 0;
}
header .menu_toggle.open .ic_menu span:nth-child(2) {
    transform: translate(-50%,-50%) rotate(0);
}
header .menu_toggle.open + nav {
    right: 0;
}
header .menu_bg.open {
    pointer-events: all;
}
header.header_small {
    position: absolute;
    width: 100%;
    padding: 40px 0;
    text-align: center;
}
header.header_small img {
    width: 180px;
    height: auto;
}
/* hover */
header .menu_toggle:hover .ic_menu {
    border-color: transparent;
}
@media screen and (max-width: 990px) {
    header .header_logo {
        top: 35px;
        left: 20px;
    }
    header .menu_toggle {
        right: 20px;
    }
}
@media screen and (max-width: 500px) {
    header nav {
        min-width: auto;
        width: 100%;
    }
    header nav ul {
        padding: 0 15px;
    }
    header nav .nav_inner {
        padding: 100px 5%;
    }
}
@keyframes blur {
    0% {
        filter: blur(8px);
    }
    100% {
        filter: blur(0px); 
    }
}