#header {
    position: sticky;
    top: 0;
    width: 100%;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    z-index: 10;
}
#header .inner{
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 20px;
}
@media screen and (max-width: 768px) {
    #header {
        height: 50px;
        display: none;
    }
    #header .inner{
        padding: 0 15px;
    }
}
#header p{
    margin:0;
}
#header a{
    display: inline-block;
    color: var(--color_text_dark);
    text-decoration: none;
}
#header ul{
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
    gap: 15px;
}
#header ul li{
    font-size: 14px;
}
#header ul a {
    padding: 20px 15px;
}
#header ul li span{
    display: block;
    color: var(--color_accent);
    font-weight: bold;
    font-family: var(--font-en), var(--font-midashi) sans-serif;
    font-size: 15px;
    margin-bottom: 3px;
}
#header .header_logo img{
    position: relative;
    top: 3px;
}
@media screen and (max-width: 1200px) {
    #header ul a {
        padding: 20px 1vw;
    }
    #header ul{
        gap: 0.5vw;
    }
}
@media screen and (max-width: 768px) {

    #header .header_logo img{
        height: 19px;
        width: auto;
        top: 15px;
    }
}

@media screen and (max-width: 768px){
    #header #nav {
        display: none;
        position: fixed;
        top: 0;
        right: 0;
        width: 100%;
        height: 100vh;
        background-color: rgba(255, 255, 255, .9);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: all 0.3s;
        z-index: 100;
    }
    #header #nav ul {
        display: flex;
        flex-direction: column;
        gap: 20px;
    }
    #header #nav ul li {
        font-size: 20px;
    }
    #header #nav ul li span{
        font-size: 20px;
    }
    #header #nav ul li  a{
        text-align: center;
    }

    #header #nav.js-active {
        display: flex;
    }
}



/* 初期状態でメガメニューを非表示にし、アニメーションの設定 */
.megamenu {
    position: fixed;
    width: 100%;
    top: 80px;
    left: 0;
    z-index: 10;
    overflow: hidden; /* はみ出しを隠す */

    transition: max-height 0.3s ease, opacity 0.5s ease; /* 高さと透明度のアニメーションを設定 */
    max-height: 0; /* 初期状態は高さ0 */

    opacity: 0; /* 初期状態は透明 */
    visibility: hidden; /* 初期状態で視覚的に非表示 */
}
/* 表示状態に切り替えた時のスタイル */
.megamenu.active {
    opacity: 1; /* 透明度を1に設定 */
    visibility: visible;
}

.megamenu{
    background-color: #000;
    color: #FFFFFF;
    padding: 50px 0;
}
.megamenu a{
    background-color: #000;
    color: #FFFFFF;
    text-decoration: none;
}
.megamenu a:hover{
    text-decoration: underline;
}
.megamenu .inner{
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 20px;
}
.megamenu_meta {
    padding-right: 50px;
    width: 330px;
}
.megamenu_meta p{
    font-size: 16px;
    line-height: 1;
    margin:0;
}
.megamenu_meta p.megamenu_meta--eng{
    font-size: 40px;
    font-family: var(--font-en), sans-serif;
    font-weight: 700;
    margin-bottom: 10px;
}

.columns{
    border-left: 1px solid #FFFFFF;
    padding-left: 70px;
}

@keyframes arrowMoveRight {
    0% {
        right: 0px;
    }
    20% {
        right: -4px;
    }
    60% {
        right: -3px;
    }
    100% {
        right: -3px;
    }
}
@keyframes arrowMoveRightReset {
    0% {
        right: -3px;
    }
    40% {
        right: 0px;
    }
    100% {
        right: 0px;
    }
}



/***
    #megamenu_about{
        display: block !important;
        opacity: 1 !important;
        max-height: 300px !important;
        visibility: visible !important;
    }
     ***/
#megamenu_about .columns{
    display: flex;
    justify-content: flex-start;
    width: 100%;
    gap: 130px;
}
#megamenu_about .columns .column{
}

#megamenu_about .columns ul{
    margin: 0;
    padding: 0;
    list-style: none;
}
#megamenu_about .columns li{
    margin: 0;
    padding: 0 0 15px;
    font-size: 14px;
    line-height: 1.4;
}
#megamenu_about .columns li:last-child{
    padding-bottom: 0;
}
#megamenu_about .columns li a{
    display: block;
    position: relative;
    padding-right: 25px;
}
#megamenu_about .columns a:before{
    content: '';
    position: absolute;
    top: calc(50% - 4px);
    right: 0px;
    width: 8px;
    height: 8px;
    border-right: 1.5px solid #FFFFFF;
    border-top: 1.5px solid #FFFFFF;
    transform: rotate(45deg);
    animation: arrowMoveRightReset 0.5s 1 forwards;
}

#megamenu_about .columns a:hover::before{
    animation: arrowMoveRight 0.5s 1 forwards;
}



/***
        #megamenu_strengths{
            display: block !important;
            opacity: 1 !important;
            max-height: 500px !important;
            visibility: visible !important;
        }
        ***/
#megamenu_strengths .columns{
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-start;
    width: 100%;
    gap: 30px;
}
#megamenu_strengths .columns .column>div+div{
    margin-top: 20px;
}

#megamenu_strengths .columns dl{
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
    align-items: center;
}
#megamenu_strengths .columns dl dt{
    margin: 0;
    padding: 0 10px 0 0;
}
#megamenu_strengths .columns dl dt img{
    width: auto;
    height: 70px;
}
#megamenu_strengths .columns dd{
    margin: 0;
    padding: 0;
    font-size: 13px;
    line-height: 1.7;
}
#megamenu_strengths .columns a{
    display: block;
    position: relative;
    padding-right: 25px;
}
#megamenu_strengths .columns a:before{
    content: '';
    position: absolute;
    top: calc(50% - 4px);
    right: 0px;
    width: 8px;
    height: 8px;
    border-right: 1.5px solid #FFFFFF;
    border-top: 1.5px solid #FFFFFF;
    transform: rotate(45deg);
    animation: arrowMoveRightReset 0.5s 1 forwards;
}
#megamenu_strengths .columns a:hover::before{
    animation: arrowMoveRight 0.5s 1 forwards;
}




#megamenu_service .columns{
    display: flex;
    justify-content: space-between;
    width: 100%;
    gap: 3%;
}
#megamenu_service .columns .column{
    width: 22%;
}

#megamenu_service .columns dl{
    margin: 0;
    padding: 0;
}
#megamenu_service .columns dl+dl{
    margin-top: 15px;
}
#megamenu_service .columns dt{
    margin: 0 0 14px;
    padding: 0 0 13px;
    font-size: 17px;
    border-bottom: 1px solid #FFFFFF;
}
#megamenu_service .columns dd{
    margin: 0;
    padding: 0;
}
#megamenu_service .columns ul{
    margin: 0;
    padding: 0;
    list-style: none;
}
#megamenu_service .columns li{
    margin: 0;
    padding: 0 0 4px;
    font-size: 13px;
    line-height: 1.4;
}
#megamenu_service .columns li img{
    height: 25px;
    width: auto;
    margin-top: 3px;
    margin-bottom: 3px;
}



/**
スマホナビ
 */


#sp_nav{
    display: none;
}
@media screen and (max-width: 768px){
    #sp_nav{
        display: block;
    }
}


.sp_nav_header{
    height: 50px;
}

/* ロゴ */
#sp_nav .header_logo{
    position: absolute;
    top: 15px;
    left:15px;
}
#sp_nav .header_logo a{
    padding: 0;
}
#sp_nav .header_logo img{
    height: 19px;
    width: auto;
    top: 0px;
}

/* ハンバーガーメニューのスタイル */
.hamburger {
    display: flex;
    z-index: 10001;
    position: fixed;
    cursor: pointer;
    flex-direction: column;
    gap: 4px;
    padding: 18px;
    right: 0;
    top: 2px;
    background-color: transparent;
    border: none;
    transition: all 0.3s;
}
.hamburger span {
    display: block;
    width: 25px;
    height: 2px;
    transition: all 0.3s;
    background-color: var(--color_text_dark);
}



.sp_nav_inner{
    overflow-x: hidden;
    overflow-y: scroll;
    width: 100vw;
    height: calc(100vh - 50px);
    padding-bottom: 50px;
    opacity: 0;
}

/**
* 開閉アニメーション
*/


#sp_nav,
#sp_nav.js-active .sp_nav_inner,
#sp_nav.js-active .hamburger span{
    transition: all 0.3s ease;
}
#sp_nav.js-active{
    position: fixed;
    height: 100vh;
    background-color: #EFEFEF !important;
}
#sp_nav.js-active .sp_nav_inner{
    opacity: 1;
}
#sp_nav.js-active .hamburger span:nth-child(1) {
    transform: rotate(25deg) translate(0px, 6.5px);
}
#sp_nav.js-active .hamburger span:nth-child(2) {
    opacity: 0;
}
#sp_nav.js-active .hamburger span:nth-child(3) {
    transform: rotate(-25deg) translate(0px, -6.5px);
}


/**
 * メニューのスタイル
 */


#sp_nav ul{
    padding: 0;
    margin: 0;
    border-top: 1px solid #FFFFFF;
}
#sp_nav li{
    list-style: none;
    border-bottom: 1px solid #FFFFFF;
}
#sp_nav a{
    position: relative;
    display: block;
    padding: 20px 25px;
    text-decoration: none;
    color: #000;
}
#sp_nav a:hover{
    background-color: #ccc;
}
#sp_nav ul a:before{
    position: absolute;
    content: '';
    display: block;
    width: 10px;
    height: 10px;
    border-right: 1.5px solid var(--color_accent);
    border-top: 1.5px solid var(--color_accent);
    top: calc( 50% - 1vw);
    right: 25px;
    transform: rotateZ(45deg);


}
#sp_nav a span{
    font-family: var(--font-en) sans-serif;
    font-weight: bold;
    color: var(--color_accent);
    font-size: 4.3vw;
}
#sp_nav a small{
    display: block;
    font-size: 2.7vw;
    position: absolute;
    right: 50px;
    top: calc(50% - 1.6vw);
}
#sp_nav ul:last-child li:last-child{
    border-bottom: none;
}

#sp_nav .spnav_block{
    text-align: center;
    padding-top: 15px;
    border-bottom: 1px solid #FFFFFF;;
}
#sp_nav .spnav_block h4{
    text-align: center;
}
#sp_nav .spnav_block h4 small{
    font-size: 2.9vw;
    font-weight: normal;
    display: block;
}
#sp_nav .spnav_block h4 span{
    font-family: var(--font-en) sans-serif;
    font-weight: bold;
    color: var(--color_accent);
    font-size: 4.5vw;
    display: block;
}


#sp_nav .contact-info {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-top: -5px;
}

#sp_nav .contact-info p {
    font-size: 18px;
    margin-top: 0;
}
#sp_nav .contact-info .tel{
    display: flex;
    position: relative;
    color: var(--color_accent);
    font-family: Jost, Arial;
    font-size: 5.5vw;
    font-weight: 400;
    margin: 0;
}
#sp_nav .contact-info .tel_info{
    font-size: 2.2vw;
    position: relative;
    margin: -5px 0 0px 2vw;
}
#sp_nav .contact-info .note {
    color: var(--color_accent);
    font-size: 14px;
}
#sp_nav .contact-info .tel img{
    width: 5vw;
    height: auto;
    margin-right: 10px;
}


#sp_nav .btn{
    display: inline-block;
    width: auto;
    color: #fff;
    padding: 7px 18px;
    font-size: 3vw;
    text-decoration: none;
    background-color: var(--color_accent);
}

#sp_nav .group_list{
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 10px;
}
#sp_nav .group_list img{
    height: 5.5vw;
    width: auto;
}
#sp_nav .group_list p{
    margin: 0;
}
#sp_nav .group_list a{
    padding: 10px;
}
#sp_nav .spnav_block--group,
#sp_nav .spnav_block--function{
    border: none;
}
#sp_nav .spnav_block--function ul{
    border: none;
    margin:0;
    padding:0;
    display: block;
}
#sp_nav .spnav_block--function ul li{
    display: inline-block;
    font-size: 3vw;
}
#sp_nav .spnav_block--function ul li +li:before{
    content: "/";
    display: none;
}
#sp_nav .spnav_block--function ul li a{
    display: inline-block;
    padding: 0;
}
#sp_nav .spnav_block--function ul li a:before{
    display: none;
}