/* ==============================
  Header（ヘッダーまわり）
  - 位置・高さはブレークポイントで切替
  - PC: 120px / SP: 80px
============================== */
.header {
    position: relative;
    /* 子要素の絶対配置の基準にする */
    z-index: 200;
    /* メガメニューより上（オーバーレイz=100） */
    background: #fff;
    font-family: "Noto Serif JP", serif;
}


@media (min-width: 1291px) {
    .header {
        height: 120px;
        /* PC高さ */
    }

}

@media (max-width: 1290px) {
    .header {
        height: 80px;
        /* SP高さ */
    }
}

/* ロゴ：縦中央配置。左右位置・サイズはレスポンシブで調整 */
.header-logo {
    position: absolute;
    top: 50%;
    font-weight: 900;
    line-height: 1;
    transform: translateY(-50%);
}

@media (min-width: 1291px) {
    .header-logo {
        left: 10px;
    }
}

@media (min-width: 1291px) and (max-width: 1500px) {
    .logo {
        left: 10px;
        width: 70%;
    }
/*
    .header-nav ul li {
        gap: 5px;
        font-size: 90%;
    }

    .header-contact {
        font-size: 90%;
    }
*/
}

@media (max-width: 1290px) {
    .logo {
        left: 10px;
        width: 80%;
    }
}



.header-logo a {
    display: inline-block;
    vertical-align: top;
}

/* ハンバーガー：SPのみ表示。アイコンはspanで描画しopen時に変形 */
.header-hamburger {
    position: absolute;
    right: 8.5px;
    top: 50%;
    width: 55px;
    height: 55px;
    transform: translateY(-50%);
}

@media (min-width: 1291px) {
    .header-hamburger {
        display: none;
    }
}

.header-hamburger button {
    display: block;
    position: relative;
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    border: none;
    background: none;
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
}

/*　サブメニューない場合　*/
.header-nav ul li a {
    display: block;
    padding: 20px;
    text-decoration: none;
    color: inherit;
    font-weight: 700;
}

.header-nav ul li a:hover {
    opacity: 0.7;
}



/* 3本ライン */
.header-hamburger button > span {
    display: block;
    position: absolute;
    left: 11.5px;
    top: 22px;
    width: 42px;
    height: 2px;
    background: #4466ce;
}

/* 上・中・下のバーに変形トランジションを付与 */
.header-hamburger button > span:nth-child(1) {
    transform: translateY(-13px);
    transition: transform 350ms cubic-bezier(.215, .61, .355, 1);
}

.header-hamburger button > span:nth-child(2) {
    transition: opacity 350ms cubic-bezier(.215, .61, .355, 1);
}

.header-hamburger button > span:nth-child(3) {
    transform: translateY(13px);
    transition: transform 350ms cubic-bezier(.215, .61, .355, 1);
}

/* 開いた状態（×アイコン化） */
.header-hamburger button.is-open > span:nth-child(1) {
    transform: rotate(45deg) translateY(0px);
}

.header-hamburger button.is-open > span:nth-child(2) {
    opacity: 0;
}

.header-hamburger button.is-open > span:nth-child(3) {
    transform: rotate(-45deg) translateY(0px);
}

/* グローバルナビ：PCのみ表示。縦中央に配置 */
.header-nav {
    position: absolute;
    right: 200px;
    top: 50%;
    transform: translateY(-50%);
}

@media (max-width: 1290px) {
    .header-nav {
        display: none;
    }
}

.header-nav ul {
    list-style: none;
    display: flex;
}

/* ナビ項目：下線アニメ（:before）でアクティブを演出 */
.header-nav ul li button {
    display: block;
    position: relative;
    width: 100%;
    height: 100%;
    margin: 0;
    box-sizing: border-box;
    padding: 20px;
    border: none;
    background: none;
    color: inherit;
    font: inherit;
    font-weight: 700;
    line-height: 1.4;
    text-decoration: none;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    transition: color 300ms;
}

.header-nav ul li button::before {
    content: '';
    display: block;
    position: absolute;
    left: 25px;
    bottom: 8px;
    width: calc(100% - 50px);
    height: 2px;
    background: #547aed;
    transform: scaleX(0);
    transition: transform 350ms cubic-bezier(.215, .61, .355, 1);
}

.header-nav ul li button:hover::before,
.header-nav ul li button:active::before,
.header-nav ul li button.is-active::before {
    transform: scaleX(1);
}




/* 右端の「お問い合わせ」：PCのみ */
.header-contact {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
}

@media (max-width: 1290px) {
    .header-contact {
        display: none;
    }
}

.header-contact a {
    display: block;
    width: 150px;
    padding: 10px 0;
    border-radius: 5px;
    background: #4466ce;
    color: #fff;
    font-weight: 700;
    line-height: 1.4;
    text-align: center;
    text-decoration: none;
    transition: background-color 300ms;
}

.header-contact a:hover {
    background: #809aea;
}

/* ==============================
  Mega Menu（メガメニュー）
  - .mega.is-open でオーバーレイ／本体を表示
  - PC: ヘッダー直下に重ねる
  - SP: パディングを広めに
============================== */

/* 背景オーバーレイ（ぼかし＋半透明）。
   非表示時は visibility/opacity/pointer-events で無効化 */
.mega-overlay {
    position: fixed;
    left: 0;
    top: 0;
    z-index: 100;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, .5);
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transition: visibility 0ms 400ms, opacity 400ms linear;
}

/* メガメニュー本体コンテナ。高さアニメはJSで付与 */
.mega-container {

    font-family: "Noto Serif JP", serif;
    position: absolute;
    left: 0;
    z-index: 100;
    width: 100%;
    box-sizing: border-box;
    background: #fff;
    overflow: hidden;
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transition: visibility 0ms 400ms, opacity 400ms linear;
}

.mega-container ul {
    list-style: none;
}



/* PCはヘッダー高に合わせる */
@media (min-width: 1291px) {
    .mega-container {
        top: 120px;
    }
}

@media (max-width: 1290px) {
    .mega-container {
        top: 80px;
        padding: 0 20px 40px;
    }
}

/* セクション（各パネル）
   PCでは重ねて配置し、表示中だけ is-open で見せる */



@media (min-width: 1291px) {

    .mega-section {
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;

        opacity: 0;
        visibility: hidden;
        pointer-events: none;

        z-index: 1;
        transition: opacity 0.3s;
    }

    .mega-section.is-open {
        position: relative;
        opacity: 1;
        visibility: visible;
        pointer-events: auto;

        z-index: 10;
    }

}

/* SPではアコーディオンの見切れ線 */
@media (max-width: 1290px) {
    .mega-section {
        border-bottom: 1px solid #e1e1e1;
    }
}

/* 見出し（SPのみ表示、アコーディオンのトリガー） */
.mega-header {
    font-size: 16px;
    font-weight: 700;
    line-height: 1.5;
}

@media (min-width: 1291px) {
    .mega-header {
        display: none;
    }
}

.mega-header button {
    display: flex;
    align-items: center;
    position: relative;
    width: 100%;
    height: 65px;
    margin: 0;
    padding: 0 20px;
    border: none;
    background: none;
    color: inherit;
    font: inherit;
    text-align: left;
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
}

/* 見出し右の＋（span疑似要素で線を描画） */
.mega-header button > span {
    display: block;
    position: absolute;
    right: 20px;
    top: 50%;
    width: 15px;
    height: 15px;
    margin-top: -7.5px;
}

.mega-header button > span::before,
.mega-header button > span::after {
    content: "";
    display: block;
    position: absolute;
    left: 0;
    top: 7px;
    width: 15px;
    height: 1px;
    background: #333;
}

.mega-header button > span::after {
    transform: rotate(90deg);
    transition: transform 350ms cubic-bezier(.215, .61, .355, 1);
}

/* 本文領域（PCは常に表示、SPは閉じておく） */
.mega-body {
    position: relative;
}

@media (min-width: 1291px) {
    .mega-body {
        display: block !important;
    }
}

@media (max-width: 1290px) {
    .mega-body {
        display: none;
        overflow: hidden;
    }
}

/* 内側余白：PCは左右パディング広め、SPは下マージンのみ */
@media (min-width: 1291px) {
    .mega-inner {
        padding: 20px 50px 40px;
    }
}

@media (max-width: 1290px) {
    .mega-inner {
        padding-bottom: 25px;
    }
}

@media (min-width: 1291px) {
    .mega-list {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 30px;
    }

    .mega-list-menu {
        display: flex;
        flex-wrap: wrap;
        justify-content: flex-start;
        gap: 15px;
    }

}

.mega-thumb {
    position: relative;
    aspect-ratio: 1.4;
    border-radius: 5px;
    overflow: hidden;
}

@media (max-width: 1290px) {
    .mega-thumb {
        display: none;
    }
}

.mega-thumb > img {
    display: block;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 350ms cubic-bezier(.215, .61, .355, 1);
}


.mega-list-menu .mega-thumb {
    position: relative;
    border-radius: 5px;
    overflow: hidden;
    transform: translateZ(0);
}

.mega-list-menu .mega-thumb > img {
    width: 90%;
    height: 90%;
    object-fit: cover;
    margin: 0 auto;
    border-radius: 5px;
    transition: transform 350ms cubic-bezier(.215, .61, .355, 1);
}



@media (min-width: 1291px) {
    .mega-text {
        margin-top: 15px;
        font-size: clamp(14px, calc(14px + (18 - 14) * ((100vw - 1215px) / (1615 - 1215))), 18px);
        font-weight: 700;
        line-height: 1.4;
        text-align: center;
    }

    .mega-text-l {
        margin-top: 15px;
        font-size: clamp(14px, calc(14px + (18 - 14) * ((100vw - 1215px) / (1615 - 1215))), 18px);
        font-weight: 700;
        line-height: 1.4;
    }
}

@media (max-width: 1290px) {
    .mega-text {
        font-size: 15px;
        line-height: 1.5;
    }

    .mega-text-l {
        font-size: 15px;
        line-height: 1.5;
    }
}

@media (min-width: 1291px) {
    .mega-text > span {
        display: inline-block;
        position: relative;
        padding-right: 25px;
        vertical-align: top;
    }

    .mega-text-l > span {
        display: inline-block;
        position: relative;
        padding-right: 25px;
        vertical-align: top;
    }

}

@media (min-width: 1291px) {
    .mega-text > span::before {
        content: '';
        display: block;
        position: absolute;
        right: 0;
        top: 50%;
        width: 8px;
        height: 8px;
        margin-top: -3px;
        box-sizing: border-box;
        border-top: 2px solid #4466ce;
        border-right: 2px solid #4466ce;
        transform: rotate(45deg);
    }

    .mega-text-l > span::before {
        content: '';
        display: block;
        position: absolute;
        right: 0;
        top: 50%;
        width: 8px;
        height: 8px;
        margin-top: -3px;
        box-sizing: border-box;
        border-top: 2px solid #4466ce;
        border-right: 2px solid #4466ce;
        transform: rotate(45deg);
    }
}

@media (min-width: 1291px) {
    .mega-list > li {
        width: calc((100% - 120px) / 5);
    }

    .mega-list-menu > li {
        width: calc((100% - 75px) / 6);
    }


}

.mega-list > li > a {
    display: block;
    color: inherit;
    text-decoration: none;
    transition: color 350ms cubic-bezier(.215, .61, .355, 1);

}

.mega-list-menu > li > a {
    display: block;
    color: inherit;
    text-decoration: none;
    transition: color 350ms cubic-bezier(.215, .61, .355, 1);

}

@media (max-width: 1290px) {
    .mega-list > li > a {
        padding: 0 20px;
    }

    .mega-list-menu > li > a {
        padding: 0 10px;
    }
}

@media (min-width: 1291px) {

    .mega-list > li > a:hover,
    .mega-list > li > a:active {
        color: #4666ce;
    }

    .mega-list-menu > li > a:hover,
    .mega-list-menu > li > a:active {
        color: #4666ce;
    }

    .mega-list > li > a:hover .mega-thumb > img,
    .mega-list > li > a:active .mega-thumb > img {
        transform: scale(1.1);
    }

    .mega-list-menu > li > a:hover .mega-thumb > img,
    .mega-list-menu > li > a:active .mega-thumb > img {
        transform: scale(1.1);
        border-radius: 5px;
    }

}

@media (max-width: 1290px) {
    .mega-list > li:nth-child(n+2) {
        margin-top: 15px;
    }

    .mega-list-menu > li:nth-child(n+2) {
        margin-top: 15px;
    }
}

/* SP: 先頭セクションの上線（見切れ調整） */
@media (max-width: 1290px) {
    .mega-section:first-child {
        border-top: 1px solid #e1e1e1;
    }
}

/* 表示中のセクション。PCで前面に出し、フェードを有効化 */
.mega-section.is-open {
    position: relative;
    left: auto;
    top: auto;
    width: auto;
    visibility: visible;
    opacity: 1;
    transition: visibility 0ms, opacity 400ms linear;
}

/* アコーディオン展開時は＋を−に変形 */
.mega-section.is-expanded .mega-header button > span::after {
    transform: rotate(0deg);
}

/* メガメニュー表示状態：オーバーレイ／本体の表示をまとめてON */
.mega.is-open .mega-overlay,
.mega.is-open .mega-container {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
    transition: visibility 0ms, opacity 400ms linear;
}


/* サブメニューなし スマホ*/
@media (max-width: 1290px) {
    .mega-section.no-sub .mega-header button {
        display: none;
    }

    .mega-section.no-sub .mega-header a {
        display: block;
        padding: 20px;
        text-decoration: none;
        color: inherit;
    }

    .mega-section.no-sub .mega-header button span {
        display: none;
        /* ＋マーク消す */
    }
}