.site-content {
    padding-top: 93px;
    padding-bottom: 87px;
}

header.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid #eee;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

header.site-header .container {
    max-width: 1400px;
    /* ヘッダーバー専用の幅に上書き（他のコンテンツには影響しません） */
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.main-navigation ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 1.5rem;
    height: 100%;
}

/* --- Hamburger Menu Styles --- */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1003;
}

/* モバイルドロワーはデフォルト非表示（PC） */
.mobile-menu-drawer {
    display: none;
}

.hamburger-box {
    width: 30px;
    height: 24px;
    display: inline-block;
    position: relative;
}

.hamburger-inner {
    display: block;
    top: 50%;
    margin-top: -2px;
}

.hamburger-inner,
.hamburger-inner::before,
.hamburger-inner::after {
    width: 30px;
    height: 3px;
    background-color: #333;
    position: absolute;
    transition: transform 0.15s ease;
}

.hamburger-inner::before,
.hamburger-inner::after {
    content: "";
    display: block;
}

.hamburger-inner::before {
    top: -8px;
}

.hamburger-inner::after {
    bottom: -8px;
}

/* Open State */
.menu-open .hamburger-inner {
    background-color: transparent !important;
}

.menu-open .hamburger-inner::before {
    transform: translateY(8px) rotate(45deg);
}

.menu-open .hamburger-inner::after {
    transform: translateY(-8px) rotate(-45deg);
}

.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1001;
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.menu-open .mobile-menu-overlay {
    display: block;
    opacity: 1;
}

.main-navigation li {
    position: static;
    /* allow sub-menu to be positioned relative to the window or header */
    display: flex;
    align-items: center;
}

.main-navigation a {
    text-decoration: none;
    font-size: 1rem;
    line-height: 1.55;
    font-weight: 600;
    transition: opacity 0.3s ease;
    display: flex;
    align-items: center;
    height: 100%;
    padding: 1rem 0;
    white-space: nowrap;
}

.main-navigation a:hover {
    opacity: 0.7;
}

/* JSによって付与されるボタン非表示用クラス */
.site-header.hide-btn-2 .header-btn-2 {
    display: none !important;
}

.site-header.hide-btn-1 .header-btn-1 {
    display: none !important;
}

/* expand hover area for menu items with children */
.main-navigation li.menu-item-has-children {
    position: static;
    padding-bottom: 20px;
    margin-bottom: -20px;
    /* Offset to keep layout intact */
}

/* 子メニューを持つ親リンクにアンダーバーインジケーター */
.main-navigation li.menu-item-has-children>a {
    position: relative;
}

.main-navigation li.menu-item-has-children>a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: currentColor;
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.2s ease, background-color 0.2s ease;
    opacity: 0;
}

.main-navigation li.menu-item-has-children:hover>a::after {
    transform: scaleX(1);
    opacity: 1;
}

/* --- Mega Menu Styles --- */
.main-navigation ul.sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    /* containerのpaddingを考慮して画面端から配置 */
    width: 100vw;
    background-color: #fff;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    display: none;
    padding: 3rem 20px;
    border-top: 1px solid #eee;
    z-index: 1001;
    height: auto;
}

.main-navigation ul.sub-menu .mega-menu-wrap {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
}

/* Show on hover */
.main-navigation li.menu-item-has-children:hover>ul.sub-menu,
.main-navigation ul.sub-menu:hover {
    display: flex;
}

/* 親メニュー名（左側に配置） */
.main-navigation ul.sub-menu .mega-menu-title {
    font-size: 1.3rem;
    font-weight: 700;
    display: block;
    flex-shrink: 0;
    width: 200px;
    padding-right: 2rem;
    padding-top: 0.6rem;
}

/* 子メニュー項目のグリッドラッパー（右側に配置） */
.main-navigation ul.sub-menu .mega-menu-items {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0 2rem;
    flex: 1;
    max-width: 900px;
}

.main-navigation ul.sub-menu li {
    flex-direction: row;
    align-items: center;
    min-width: auto;
}

.main-navigation ul.sub-menu a {
    padding: 0.5rem 0;
    color: #333;
    font-size: 1rem;
    font-weight: 400;
    height: auto;
    display: flex;
    align-items: center;
    width: 100%;
    transition: opacity 0.3s ease;
}

.main-navigation ul.sub-menu a::after {
    content: '';
    display: inline-block;
    width: 5px;
    height: 5px;
    border-top: 1.5px solid currentColor;
    border-right: 1.5px solid currentColor;
    transform: rotate(45deg);
    margin-left: auto;
    flex-shrink: 0;
    opacity: 0.5;
    transition: opacity 0.3s ease;
}

.main-navigation ul.sub-menu a:hover {
    opacity: 0.6;
}

.main-navigation ul.sub-menu a:hover::after {
    opacity: 1;
}

/* --- Header Action Buttons --- */
.header-action-buttons {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-left: 20px;
}

.header-btn-item {
    text-decoration: none;
    display: flex;
    align-items: center;
    transition: opacity 0.3s ease;
}

.header-btn-item:hover {
    opacity: 0.8;
}

/* テキストスタイル */
.header-btn-text-style {
    flex-direction: column;
    align-items: flex-start;
    line-height: 1.2;
}

.header-btn-text-style .header-btn-main-text {
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 2px;
}

.header-btn-text-style .header-btn-sub-text {
    font-size: 0.85rem;
    font-weight: 600;
}

/* ボタンスタイル */
.header-btn-button-style {
    padding: 10px 30px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.4;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.header-btn-button-style:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.header-btn-icon {
    font-size: 1.2em;
    /* アイコンを少し大きめに */
    display: flex;
    align-items: center;
    justify-content: center;
}

.header-btn-icon-left {
    margin-right: 8px;
}

.header-btn-icon-right {
    margin-left: 8px;
}

/* レスポンシブ調整（画面幅に合わせてボタンを順次非表示にする） */
@media screen and (max-width: 1150px) {

    /* 画面幅が少し狭くなったらボタン2を非表示 */
    .header-btn-2 {
        display: none !important;
    }
}

@media screen and (max-width: 950px) {

    /* さらに画面幅が狭くなったらボタン1も非表示 */
    .header-btn-1 {
        display: none !important;
    }
}

/* スマホ表示ではコンテナごと非表示 */
@media screen and (max-width: 768px) {
    .header-action-buttons {
        display: none !important;
    }

    /* モバイルドロワー内のボタン用スタイル */
    .mobile-drawer-action-buttons {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 15px;
        padding: 20px;
        margin-top: 12px;
    }

    .mobile-btn-item {
        width: 100%;
        justify-content: center;
        text-align: center;
    }

    .mobile-btn-item.header-btn-text-style {
        align-items: center;
    }
}