/* ========================================
   リセット & 基本設定
======================================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    /* iOS対応: overflow-x: hidden の代わりにclipを使用 */
    overflow-x: clip;
    width: 100%;
    max-width: 100%;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    line-height: var(--body-line-height-sp);
    color: #333333;
    background-color: #fff;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    /* iOS対応: overflow-x: hidden の代わりにclipを使用 */
    overflow-x: clip;
    width: 100%;
    max-width: 100%;
    position: relative;
}

/* メニューが開いている時のbody - スクロール可能に */
body.menu-open {
    /* overflow: hidden を削除してスクロール可能に */
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
    vertical-align: bottom;
}

ul, ol {
    list-style: none;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

/* ========================================
   CSS変数
======================================== */
:root {
    /* カラー - ゴールド、白、黒 */
    --color-primary: #B8986D; /* ゴールド */
    --color-secondary: #8B7355; /* ダークゴールド */
    --color-text: #333333; /* 黒 */
    --color-white: #ffffff; /* 白 */
    --color-gray: #666666;
    --color-border: #e0e0e0;
    
    /* フォント */
    --font-base: 'Noto Sans JP', sans-serif;
    --font-en: 'Montserrat', sans-serif;
    
    /* レイアウト */
    --header-height-sp: 60px;
    --header-height-pc: 80px;
    --container-width: 1200px;
    
    /* スペーシング */
    --section-padding-sp: 48px 20px;
    --section-padding-pc: 4rem 2rem;
    
    /* レイアウト */
    --header-height-sp: 56px;
    --header-height-pc: 80px;
    
    /* タイポグラフィ - 可読性を考慮 */
    /* 見出し */
    --heading-line-height: 1.0;
    --heading-letter-spacing: 0.05em;
    
    /* 本文 */
    --body-line-height-sp: 1.8;
    --body-line-height-pc: 1.9;
    --body-letter-spacing: 0.05em;
    
    /* ボタン・リンク */
    --button-letter-spacing: 0.08em;
}

/* セクション */
.section {
    padding: var(--section-padding-sp);
}

@media (min-width: 768px) {
    .section {
        padding: var(--section-padding-pc);
    }
}

/* ========================================
   セクション共通ヘッダースタイル
======================================== */
.section-header-wrapper {
    width: 100%;
    display: flex;
}

.section-header-wrapper--right {
    width: 100%;
    display: flex;
    justify-content: flex-end;
}

.section-header {
    /* 微細なグラデーションで立体感 */
    background: linear-gradient(180deg, rgba(58, 58, 58, 0.95) 0%, rgba(45, 45, 45, 0.9) 100%);
    padding: 16px 40px 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
    position: relative;
    clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 50%, calc(100% - 24px) 100%, 0 100%);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15), 0 2px 8px rgba(0, 0, 0, 0.1);
    /* アニメーション用の追加スタイル */
    overflow: visible; /* clip-pathがあるのでvisibleに */
}

.section-header--right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    clip-path: polygon(24px 0, 100% 0, 100% 100%, 24px 100%, 0 50%);
    padding: 16px 24px 16px 40px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15), 0 2px 8px rgba(0, 0, 0, 0.1);
}

.section-header__en {
    color: white;
    font-size: 36px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 300;
    letter-spacing: 2px;
    line-height: var(--heading-line-height);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.section-header__subtitle {
    /* ① 背景にグラデーションを設定 */
  background: linear-gradient(
    to bottom right, /* 左上から右下へ */
    #c7ba97 0%,      /* 左上: 明るいベージュゴールド */
    #a18c5b 100%     /* 右下: 濃いブロンズゴールド */
  );
  
  /* ② 文字色を透明にする */
  color: transparent;
  
  /* ③ 背景画像をテキストの形に合わせてクリップ（切り抜き）する */
  /* Chrome, Safari, Edge, Opera 向け */
  -webkit-background-clip: text; 
  /* Firefox 向け (将来的に標準化される可能性あり) */
  background-clip: text;
    font-size: 20px;
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 400;
    letter-spacing: 1px;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

@media (min-width: 768px) {
    .section-header {
        padding: 20px 56px 20px 32px;
        gap: 12px;
        clip-path: polygon(0 0, calc(100% - 32px) 0, 100% 50%, calc(100% - 32px) 100%, 0 100%);
    }

    .section-header--right {
        clip-path: polygon(32px 0, 100% 0, 100% 100%, 32px 100%, 0 50%);
        padding: 20px 32px 20px 56px;
    }

    .section-header__en {
        font-size: 56px;
        letter-spacing: 3px;
    }

    .section-header__subtitle {
        font-size: 24px;
    }
}

@media (max-width: 375px) {
    .section-header__en {
        font-size: 32px;
    }

    .section-header__subtitle {
        font-size: 16px;
    }
}

/* ========================================
   ヘッダー (固定)
======================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 64px;
    background-color: transparent;
    z-index: 1200;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: visible;
}

/* メニューが開いている時にヘッダーの一部要素を非表示 */
body.menu-open .site-nav,
body.menu-open .header-contact,
body.menu-open .header-contact-btn-wrapper,
body.menu-open .header-decoration,
body.menu-open .site-logo {
    opacity: 0;
    pointer-events: none;
}

/* スクロール後の状態 */
.site-header.is-scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
}

/* オーバーレイが開いている時は、スクロール後も初期状態を維持 */
body.menu-open .site-header.is-scrolled {
    background-color: transparent !important;
    box-shadow: none !important;
}

/* オーバーレイが開いている時は、ヘッダーに暗い背景を追加してなじませる */
body.menu-open .site-header {
    background: linear-gradient(180deg, rgba(26, 26, 26, 0.8) 0%, rgba(26, 26, 26, 0) 100%);
}

@media (min-width: 576px) {
    .site-header {
        height: 72px;
    }
}

@media (min-width: 1080px) {
    .site-header {
        height: 96px;
    }
}

.header-inner {
    height: 100%;
    padding: 4px 8px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1201;
}

@media (min-width: 768px) {
    .header-inner {
        padding: 4px 20px;
    }
}

@media (min-width: 1280px) {
    .header-inner {
        padding: 8px 32px;
    }
}

/* ロゴ */
.site-logo {
    position: relative;
    z-index: 1201;
    transition: opacity 0.3s ease;
}

.site-logo:hover {
    opacity: 0.8;
}

.site-logo a {
    position: relative;
    display: block;
}

/* 白ロゴと通常ロゴを同じ位置に配置 */
.site-logo__white,
.site-logo__color {
    height: 56px;
    width: auto;
    object-fit: contain;
    transition: opacity 0.5s ease;
}

.site-logo__color {
    position: absolute;
    top: 0;
    left: 0;
}

/* 初期状態: 白ロゴを表示、通常ロゴを非表示 */
.site-header:not(.is-scrolled) .site-logo__white {
    opacity: 1;
}

.site-header:not(.is-scrolled) .site-logo__color {
    opacity: 0;
}

/* スクロール後: 白ロゴを非表示、通常ロゴを表示 */
.site-header.is-scrolled .site-logo__white {
    opacity: 0;
}

.site-header.is-scrolled .site-logo__color {
    opacity: 1;
}

@media (min-width: 576px) {
    .site-logo__white,
    .site-logo__color {
        height: 64px;
    }
}

@media (min-width: 1080px) {
    .site-logo__white,
    .site-logo__color {
        height: 80px;
    }
}

/* ナビゲーション (PC) */
.site-nav {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1200;
}

.nav-list {
    display: flex;
    gap: clamp(2rem, 3vw, 3.5rem);
}

@media (max-width: 1279px) {
    .nav-list{
        display: none;
    }
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    position: relative;
}

.nav-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--color-white);
    transition: color 0.3s ease;
    position: relative;
}

/* スクロール後のナビゲーション色 */
.site-header.is-scrolled .nav-link {
    color: var(--color-text);
}

/* ホバー時のゴールドアンダーライン */
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -16px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, 
        transparent 0%,
        var(--color-primary) 20%,
        #c7ba97 50%,
        var(--color-primary) 80%,
        transparent 100%
    );
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link:hover::after {
    transform: translateX(-50%) scaleX(1);
}

.nav-link:hover {
    color: var(--color-primary);
}

.site-header.is-scrolled .nav-link:hover {
    color: var(--color-primary);
}

.nav-link__en {
    font-size: 1.1rem;
    font-family: var(--font-en);
    font-weight: 400;
    letter-spacing: var(--button-letter-spacing);
}

.nav-link__ja {
    font-size: 0.85rem;
    font-family: var(--font-base);
    font-weight: 300;
    letter-spacing: var(--button-letter-spacing);
}

/* 右側エリア */
.header-right {
    display: flex;
    align-items: center;
    gap: 48px;
    position: relative;
    z-index: 1201;
}

/* 電話番号エリア (PC) - 非表示 */
.header-contact {
    display: none;
    transition: all 0.3s ease;
}

.header-contact:hover {
    transform: translateY(-2px);
    opacity: 0.9;
}

/* 初期状態: 電話番号を白く表示 */
.site-header:not(.is-scrolled) .header-contact__number,
.site-header:not(.is-scrolled) .header-contact__hours {
    color: var(--color-white);
}

/* スクロール後: 電話番号を黒に */
.site-header.is-scrolled .header-contact__number,
.site-header.is-scrolled .header-contact__hours {
    color: #333333;
}

.header-contact__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 6px;
    flex-shrink: 0;
}

.header-contact__icon svg {
    width: 100%;
    height: 100%;
}

/* 初期状態: 電話アイコンを白に */
.site-header:not(.is-scrolled) .header-contact__icon .fill-primary {
    fill: var(--color-white);
}

/* スクロール後: 電話アイコンをゴールドに */
.site-header.is-scrolled .header-contact__icon .fill-primary {
    fill: var(--color-primary);
}

.header-contact__info {
    display: flex;
    flex-direction: column;
    gap: 4px;
    justify-content: center;
}

.header-contact__number {
    font-size: 14px;
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 400;
    line-height: 1.2;
    transition: color 0.5s ease;
}

.header-contact__hours {
    font-size: 11px;
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 400;
    letter-spacing: 0.5px;
    line-height: 1.2;
    transition: color 0.5s ease;
}

/* 装飾エリア - 黒グラデーション（鉛筆型） */
.header-decoration {
    position: absolute;
    pointer-events: none;
    z-index: 1199;
    width: 58px;
    height: 64px;
    right: 0;
    top: 0;
    background: linear-gradient(
    135deg, /* 左下から右上へのグラデーション */
    rgba(26, 26, 26, 0.95) 0%,   /* 最も濃いグレー */
    rgba(45, 45, 45, 0.95) 35%,
    rgba(58, 58, 58, 0.95) 70%,
    rgba(74, 74, 74, 0.95) 100%  /* 最も明るいグレー */
);
    opacity: 0;
    transition: opacity 0.5s ease;
}

/* スクロール後の装飾 */
.site-header.is-scrolled .header-decoration {
    opacity: 1;
}

/* オーバーレイが開いている時は装飾を非表示 */
body.menu-open .header-decoration {
    opacity: 0 !important;
}

/* PC版の装飾 */
@media (min-width: 576px) {
    .header-decoration {
        width: 60px;
        height: 72px;
    }
}

@media (min-width: 768px) {
    .header-decoration {
        width: 96px;
    }
}

@media (min-width: 1080px) {
    .header-decoration {
        width: 96px;
        height: 96px;
    }
}



@media (min-width: 1280px) {
    .header-decoration {
        width: 132px;
        height: 96px;
    }
}

/* コンタクトボタン (1080px以上) */
.header-contact-btn-wrapper {
    display: none;
    flex-direction: column;
    align-items: center;
    margin-bottom: 0.3rem;
}

.header-contact-btn {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1201;
    transition: all 0.3s ease;
}

.header-contact-btn:hover {
    transform: translateY(-2px);
    opacity: 1;
}

.header-contact-btn svg {
    width: 24px;
    height: 24px;
    filter: drop-shadow(0 2px 4px rgba(184, 152, 109, 0.3));
    transition: filter 0.3s ease;
}

.header-contact-btn:hover svg {
    filter: drop-shadow(0 4px 8px rgba(184, 152, 109, 0.5));
}

/* 初期状態: 電話アイコンを白に */
.header-contact-btn svg .fill-c-themeA {
    fill: var(--color-white);
}

/* 初期状態: 電話アイコンを白に */
.site-header:not(.is-scrolled) .header-contact-btn svg .fill-c-themeA {
    fill: var(--color-white);
}

/* スクロール後: 電話アイコンをゴールドに */
.site-header.is-scrolled .header-contact-btn svg .fill-c-themeA {
    fill: var(--color-primary);
}

/* ボタン下のラベル */
.header-contact-btn__label {
    font-size: 11px;
    font-family: var(--font-base);
    font-weight: 300;
    letter-spacing: 0.05em;
    color: var(--color-white);
    transition: color 0.5s ease;
    line-height: 1;
}

/* 初期状態: ラベルを白に */
.site-header:not(.is-scrolled) .header-contact-btn__label {
    color: var(--color-white);
}

/* スクロール後: ラベルを黒に */
.site-header.is-scrolled .header-contact-btn__label {
    color: var(--color-white);
}

@media (min-width: 1280px) {
    .header-contact-btn-wrapper {
        display: flex;
    }
}

/* ハンバーガーメニュー (1080px未満) */
.hamburger {
    width: 42px;
    height: 42px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    position: relative;
    z-index: 1201;
    transition: opacity 0.3s ease;
    cursor: pointer;
}

.hamburger:hover {
    opacity: 0.7;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-primary);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center;
}

/* 初期状態: ハンバーガーを白に */
.site-header:not(.is-scrolled) .hamburger span {
    background-color: var(--color-white);
}

/* スクロール後: ハンバーガーをゴールドに */
.site-header.is-scrolled .hamburger span{
    background-color: var(--color-primary);
}

/* メニューが開いている時: 常に白 */
.hamburger.is-active span {
    background-color: var(--color-white);
}

/* オーバーレイが開いている時は、スクロール後もハンバーガーを白に維持 */
body.menu-open .site-header.is-scrolled .hamburger span {
    background-color: var(--color-white);
}

/* ×ボタンへの変形 */
.hamburger.is-active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.hamburger.is-active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.hamburger.is-active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

@media (min-width: 768px) {
    .hamburger {
        width: 56px;
        height: 56px;
    }
}

@media (min-width: 1280px) {
    .hamburger {
        display: none;
    }
}

/* ========================================
   モバイルメニューオーバーレイ
======================================== */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    max-width: 100vw;
    max-height: 100vh;
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.98) 0%, rgba(45, 45, 45, 0.98) 100%);
    z-index: 1100;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.4s;
    overflow: hidden;
}

.mobile-menu-overlay.is-active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu__inner {
    height: 100vh;
    padding: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    overflow: hidden;
}

.mobile-menu__nav {
    width: 100%;
    max-width: 400px;
}

/* メニューリスト */
.mobile-menu__list {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.mobile-menu__item {
    border-bottom: 1px solid rgba(184, 152, 109, 0.2);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

/* アニメーション遅延 */
.mobile-menu-overlay.is-active .mobile-menu__item:nth-child(1) { animation: fadeInUp 0.5s 0.1s forwards; }
.mobile-menu-overlay.is-active .mobile-menu__item:nth-child(2) { animation: fadeInUp 0.5s 0.2s forwards; }
.mobile-menu-overlay.is-active .mobile-menu__item:nth-child(3) { animation: fadeInUp 0.5s 0.3s forwards; }
.mobile-menu-overlay.is-active .mobile-menu__item:nth-child(4) { animation: fadeInUp 0.5s 0.4s forwards; }
.mobile-menu-overlay.is-active .mobile-menu__item:nth-child(5) { animation: fadeInUp 0.5s 0.5s forwards; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mobile-menu__link {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 12px;
    color: var(--color-white);
    transition: all 0.3s ease;
    position: relative;
}

@media (max-height: 672px) {
    .mobile-menu__link{
        flex-direction: row;
        gap: 16px;
        align-items: center;
    }
}

/* ゴールドのアンダーライン - 下側に左から右へ */
.mobile-menu__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, 
        var(--color-primary) 0%,
        #c7ba97 50%,
        var(--color-primary) 100%
    );
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-menu__link:hover::after,
.mobile-menu__link:active::after {
    transform: scaleX(1);
}

.mobile-menu__link:hover,
.mobile-menu__link:active {
    background-color: rgba(184, 152, 109, 0.1);
    opacity: 1;
}

.mobile-menu__en {
    font-size: 1rem;
    font-family: var(--font-en);
    font-weight: 400;
    letter-spacing: 0.1em;
    color: var(--color-white);
}

.mobile-menu__ja {
    font-size: 0.85rem;
    font-family: var(--font-base);
    font-weight: 300;
    letter-spacing: 0.05em;
    color: rgba(255, 255, 255, 0.8);
}

/* 電話番号セクション */
.mobile-menu__contact {
    width: 100%;
    max-width: 400px;
    padding: 16px 12px;
    background: linear-gradient(135deg, rgba(184, 152, 109, 0.15) 0%, rgba(139, 115, 85, 0.15) 100%);
    border: 1px solid rgba(184, 152, 109, 0.3);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    opacity: 0;
    transform: translateY(20px);
}

.mobile-menu-overlay.is-active .mobile-menu__contact {
    animation: fadeInUp 0.5s 0.6s forwards;
}

.mobile-menu__contact-label {
    font-size: 0.9rem;
    font-family: var(--font-en);
    font-weight: 400;
    letter-spacing: 0.1em;
    color: var(--color-primary);
    text-align: center;
}

.mobile-menu__phone {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--color-white);
    transition: all 0.3s ease;
}

.mobile-menu__phone:hover {
    transform: scale(1.05);
    opacity: 1;
}

.mobile-menu__phone-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.mobile-menu__phone-icon svg {
    width: 100%;
    height: 100%;
}

.mobile-menu__phone-icon .fill-primary {
    fill: var(--color-primary);
}

.mobile-menu__phone-number {
    font-size: 1.4rem;
    font-family: var(--font-base);
    font-weight: 400;
    letter-spacing: 0.05em;
}

@media (min-width: 1280px) {
    .mobile-menu-overlay {
        display: none;
    }
}

/* -------------------------------------- */
/* ファーストビュー */
/* -------------------------------------- */

.fv__content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

/* -------------------------------------- */
/* business-fv__en-title (英語タイトル: メイン) */
/* -------------------------------------- */
.fv__en-title {
    font-family: var(--font-en);
    font-weight: 400;
    color: var(--color-white);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    
    /* ★★★ サイズアップ＆rem化: 最小 2.5rem, 最大 4.0rem (64px) ★★★ */
    /* 最小サイズ: 2.5rem (40px) */
    /* 可変サイズ: 6vw (画面幅の6%) */
    /* 最大サイズ: 4.0rem (64px) */
    font-size: clamp(44px, 6vw, 88px);
    letter-spacing: var(--body-letter-spacing);
    line-height: 1.2;
    text-align: center;

}

/* -------------------------------------- */
/* business-fv__ja-title (日本語タイトル: サブ) */
/* -------------------------------------- */
.fv__ja-title {
    font-family: var(--font-base); 
    font-weight: 400;
    color: var(--color-white);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    /* ★★★ サイズアップ＆rem化: 最小 2.0rem, 最大 3.0rem (48px) ★★★ */
    /* 最小サイズ: 2.0rem (32px) */
    /* 可変サイズ: 4.5vw (画面幅の4.5%) */
    /* 最大サイズ: 3.0rem (48px) */
    font-size: clamp(24px, 3vw, 44px);
    letter-spacing: var(--body-letter-spacing);
    line-height: 1.2;
    text-align: center;
}

/* ========================================
   セクション間装飾
======================================== */
.section-divider {
    position: relative;
    height: 1px;
    margin: 64px auto;
    max-width: 800px;
    background: linear-gradient(to right, transparent 0%, #B8986D 20%, #c7ba97 50%, #B8986D 80%, transparent 100%);
}

@media (min-width: 768px) {
    .section-divider {
        margin: 128px auto;
        max-width: 1000px;
    }
}

/* 菱形装飾 */
.section-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(45deg);
    width: 10px;
    height: 10px;
    background: linear-gradient(135deg, #c7ba97 0%, #a18c5b 100%);
    box-shadow: 0 0 20px rgba(184, 152, 109, 0.5);
}

@media (min-width: 768px) {
    .section-divider::before {
        width: 14px;
        height: 14px;
    }
}

/* コンパクトページ用：より短く、細く、淡く */
.section-divider--subtle {
    position: relative;
    height: 1px;
    margin: 64px auto;
    max-width: 400px;
    background: linear-gradient(to right, 
        transparent 0%, 
        rgba(184, 152, 109, 0.3) 50%, 
        transparent 100%
    );
}

.section-divider--subtle::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(45deg);
    width: 8px;
    height: 8px;
    background: linear-gradient(135deg, #c7ba97 0%, #a18c5b 100%);
    box-shadow: 0 0 8px rgba(184, 152, 109, 0.2);
}

@media (min-width: 768px) {
    .section-divider--subtle {
        margin: 96px auto;
        max-width: 600px;
    }
    
    .section-divider--subtle::before {
        width: 12px;
        height: 12px;
    }
}

/* ========================================
   コンタクトバナーセクション
======================================== */
.contact-banner {
    position: relative;
    padding: var(--section-padding-sp);
    background: linear-gradient(0deg, rgba(0, 0, 0, 0.33) 0%, rgba(0, 0, 0, 0.33) 100%);
    background-size: cover;
    background-position: center;
    overflow: hidden;
}

@media (min-width: 768px) {
    .contact-banner {
        padding: var(--section-padding-pc);
    }
}

.contact-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../images/contact-bg.jpg');
    background-size: cover;
    background-position: center;
    z-index: -1;
}

.contact-banner__inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
}

@media (min-width: 768px) {
    .contact-banner__inner {
        flex-direction: row;
        align-items: flex-start;
        justify-content: space-around;
        gap: auto;
    }
}

.contact-banner__title-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
}

@media (min-width: 768px) {
    .contact-banner__title-area {
        align-items: flex-start;
    }
}

.contact-banner__title-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

@media (min-width: 768px) {
    .contact-banner__title-wrapper {
        align-items: flex-start;
    }
}

.contact-banner__title-en {
    color: white;
    font-size: 40px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 300;
    letter-spacing: var(--body-letter-spacing);
    line-height: 1.0;
}

@media (min-width: 768px) {
    .contact-banner__title-en {
        font-size: 56px;
    }
}

.contact-banner__title-ja {
    color: white;
    font-size: 20px;
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 400;
    letter-spacing: 1px;
}

@media (min-width: 768px) {
    .contact-banner__title-ja {
        font-size: 24px;
        letter-spacing: 1.2px;
    }
}

.contact-banner__hours {
    color: white;
    font-size: 17.6px;
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 400;
    line-height: var(--body-line-height-sp);
    letter-spacing: var(--body-letter-spacing);
    text-align: center;
}

@media (min-width: 768px) {
    .contact-banner__hours {
        font-size: 19.2px;
        text-align: center;
        line-height: var(--body-line-height-sp);
    }
}

.contact-banner__cards {
    max-width: 560px;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 32px;
}

@media (min-width: 768px) {
    .contact-banner__cards {
        gap: 48px;
    }
}

.contact-card {
    width: 100%;
    padding: 16px;
    border: 1px solid white;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    transition: all 0.3s ease;
}

.contact-card:hover {
    background-color: rgba(0, 0, 0, 0.2);
    transform: translateY(-2px);
}

.contact-card__title {
    color: white;
    font-size: 17.6px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 400;
    line-height: var(--body-line-height-sp);
    letter-spacing: var(--body-letter-spacing);
    text-align: center;
}

@media (min-width: 768px) {
    .contact-card__title {
        font-size: 19.2px;
        line-height: var(--body-line-height-pc);
    }
}

.contact-card__content {
    display: flex;
    align-items: center;
    gap: 8px;
}

.contact-card__icon {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}

.contact-card__icon svg {
    fill: var(--color-white);
}

.contact-card__text {
    color: white;
    font-size: 24px;
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 400;
    letter-spacing: var(--body-letter-spacing);
}

@media (min-width: 768px) {
    .contact-card__text {
        font-size: 28px;

    }
}

.contact-card__text--form {
    font-size: 24px;
    letter-spacing: var(--body-letter-spacing);
}

@media (min-width: 768px) {
    .contact-card__text--form {
        font-size: 28px;
    }
}

/* ========================================
   フッター
======================================== */
.site-footer {
    position: relative;
    background: linear-gradient(180deg, #555555 0%, #444444 50%, #333333 100%);
    padding: clamp(3rem, 6vw, 4rem) clamp(1.25rem, 3vw, 2rem) 1rem;
    overflow: hidden;
}

.footer-inner {
    position: relative;
    max-width: 1300px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: clamp(2.5rem, 4vw, 4rem);
}

.footer-content {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    padding-bottom: 2rem;
}

.footer-content::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(208, 208, 208, 0.25);
}

/* 右下装飾エリア（Instagramアイコン） */
.footer-social-decoration {
    position: absolute;
    bottom: 20px;
    right: 8px;
    pointer-events: auto;
    z-index: 2;
}

/* 右下装飾ロゴ */
.footer-decoration-logo {
    position: absolute;
    bottom: 8px;
    right: 8px;
    width: clamp(80px, 15vw, 128px);
    opacity: 0.15;
    pointer-events: none;
}

.footer-decoration-logo img {
    width: 100%;
    height: auto;
    display: block;
}

.footer-top {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

@media (min-width: 768px) {
    .footer-top {
        flex-direction: row;
        align-items: flex-end;
        gap: 2rem;
    }
}

.footer-logo {
    flex-shrink: 0;
    transition: opacity 0.3s ease;
}

.footer-logo:hover {
    opacity: 0.8;
}

.footer-logo img {
    width: clamp(16.625rem, 30vw, 24.9375rem);
    height: auto;
}

@media (min-width: 768px) {
    .footer-logo img {
        width: auto;
        height: 100px;
    }
}

.footer-tel {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-tel__label {
    color: #ffffff;
    font-size: clamp(1rem, 2vw, 1.1rem);
    font-family: var(--font-en);
    font-weight: 400;
    letter-spacing: 0.05em;
}

.footer-tel__phone {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 12px;
    background: linear-gradient(135deg, rgba(184, 152, 109, 0.2) 0%, rgba(139, 115, 85, 0.2) 100%);
    border: 1px solid rgba(184, 152, 109, 0.4);
    color: rgba(255, 255, 255, 0.9);
    max-width: 240px;
    transition: transform 0.3s ease, background 0.3s ease;
}

.footer-tel__phone:hover {
    transform: scale(1.05);
    background: linear-gradient(135deg, rgba(184, 152, 109, 0.3) 0%, rgba(139, 115, 85, 0.3) 100%);
}

.footer-tel__icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.footer-tel__icon svg {
    width: 100%;
    height: 100%;
}

.footer-tel__icon .fill-primary {
    fill: var(--color-primary);
}

.footer-tel__number {
    font-size: clamp(1rem, 2vw, 1.1rem);
    font-family: var(--font-base);
    font-weight: 400;
    letter-spacing: var(--button-letter-spacing);
}

/* SNSアイコン */
.footer-social {
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer-social__link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: linear-gradient(
        180deg,
        rgba(110, 110, 110, 0.95) 0%,
        rgba(100, 100, 100, 0.95) 35%,
        rgba(90, 90, 90, 0.95) 70%,
        rgba(80, 80, 80, 0.95) 100%
    );
    transform: rotate(45deg);
    color: #ffffff;
    position: relative;
    overflow: hidden;
    will-change: transform;
    backface-visibility: hidden;
}

.footer-social__link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        #c7ba97 0%,
        #B8986D 50%,
        #a18c5b 100%
    );
    opacity: 0;
    transition: opacity 0.4s ease;
}

.footer-social__link:hover::before,
.footer-social__link:active::before {
    opacity: 1;
}

.footer-social__link svg {
    width: 22px;
    height: 22px;
    transform: rotate(-45deg);
    position: relative;
    z-index: 1;
    will-change: transform;
    backface-visibility: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

@media (min-width: 768px) {
    .footer-social__link {
        width: 44px;
        height: 44px;
    }
    
    .footer-social__link svg {
        width: 24px;
        height: 24px;
    }
}

.footer-nav {
    display: flex;
    flex-direction: column;
    gap: clamp(1.75rem, 3vw, 3rem);
    position: relative;
    z-index: 1;
}

@media (min-width: 768px) {
    .footer-nav {
        gap: clamp(2.5rem, 3.5vw, 3rem);
    }
}

.footer-nav__row {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: clamp(1.75rem, 3vw, 1.75rem);
}

@media (min-width: 768px) {
    .footer-nav__row {
        flex-direction: row;
        gap: clamp(3rem, 5vw, 4rem);
    }
}

.footer-nav__item {
    display: inline-flex;
    flex-direction: column;
    gap: 0.375rem;
    transition: opacity 0.3s ease;
}

.footer-nav__item:hover {
    opacity: 0.7;
}

.footer-nav__en {
    color: #ffffff;
    font-size: clamp(1rem, 2vw, 1.1rem);
    font-family: var(--font-en);
    font-weight: 400;
    letter-spacing: var(--body-letter-spacing);
}

.footer-nav__ja {
    color: rgba(255, 255, 255, 0.7);
    font-size: clamp(0.9rem, 2vw, 1rem);
    font-family: var(--font-base);
    font-weight: 200;
    letter-spacing: var(--body-letter-spacing);
}

@media (min-width: 768px) {
    .footer-bottom {
        display: flex;
        justify-content: center;
    }
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: clamp(0.875rem, 1vw, 0.875rem);
    font-family: var(--font-en);
    font-weight: 400;
    text-align: center;
}

/* ========================================
   ボタン
======================================== */
.btn {
    display: inline-block;
    padding: 16px 40px;
    font-size: 16px;
    font-weight: 700;
    text-align: center;
    letter-spacing: var(--button-letter-spacing);
    border: 2px solid var(--color-primary);
    background-color: transparent;
    color: var(--color-primary);
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    opacity: 1;
}

.btn--primary {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn--primary:hover {
    background-color: var(--color-secondary);
    border-color: var(--color-secondary);
}

/* ========================================
   ユーティリティ
======================================== */

/* ページ内リンクのスクロール位置調整 */
#about,
#business,
#company,
#contact {
    scroll-margin-top: 64px; /* デフォルトのヘッダー高さ */
}

@media (min-width: 576px) {
    #about,
    #business,
    #company,
    #contact {
        scroll-margin-top: 72px;
    }
}

@media (min-width: 1080px) {
    #about,
    #business,
    #company,
    #contact {
        scroll-margin-top: 96px;
    }
}

.sp-only {
    display: block;
}

.pc-only {
    display: none;
}

@media (min-width: 768px) {
    .sp-only {
        display: none;
    }

    .pc-only {
        display: flex;
    }
}