* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
}

:root {
    --text-color: #f4f4f4;
    --bg-color: #141414;
    --menu-bg: rgba(244, 244, 244, 0.3);
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    overflow-x: hidden;
    /* スムーズスクロール */
    scroll-behavior: smooth;
    /* タッチデバイス最適化 */
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Shippori Mincho B1', serif;
    background-color: #000000;
    color: var(--text-color);
    overflow-x: hidden;
    width: 100%;
    min-height: 100%;
    position: relative;
    /* タッチ最適化 */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    /* タップハイライト削除（カスタムスタイルのため） */
    -webkit-tap-highlight-color: transparent;
}

/* ヘッダー */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 4rem;
    background: transparent;
    transform: translateY(0);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                background 0.3s ease;
}

/* スクロール時にヘッダーを隠す */
.header.hidden {
    transform: translateY(-100%);
}

.logo {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--text-color);
    transition: var(--transition-smooth);
    cursor: pointer;
    z-index: 1002;
    font-family: 'Josefin Sans', sans-serif;  /* Josefin Sans Regular 400 */
}

.logo sup {
    font-size: 0.6em;  /* 0.5em → 0.6em（少し大きく） */
    font-weight: 300;  /* 細字にする */
    vertical-align: super;
    margin-left: 0.05em;
}

.logo:hover {
    opacity: 0.7;
    transform: translateY(-2px);
}

/* デスクトップナビゲーション */
.desktop-nav {
    display: block;
}

/* ハンバーガーメニューボタン（デフォルトは非表示） */
.hamburger-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    padding: 14px 12px;
    cursor: pointer;
    transition: var(--transition-smooth);
    z-index: 1002;
}

.hamburger-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.15);
}

.hamburger-line {
    width: 100%;
    height: 2px;
    background: var(--text-color);
    border-radius: 2px;
    transition: var(--transition-smooth);
}

/* 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;
    background: rgba(20, 20, 20, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1001;
    display: flex;
    flex-direction: column;
    padding: 2rem 1.5rem;
    opacity: 0;
    visibility: hidden;
    transform: translateX(100%);
    transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1),
                visibility 0.5s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
}

.close-btn {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: relative;
    transition: var(--transition-smooth);
}

.close-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
    transform: rotate(90deg);
}

.close-line {
    position: absolute;
    width: 20px;
    height: 2px;
    background: #f4f4f4;
    border-radius: 2px;
}

.close-line:first-child {
    transform: rotate(45deg);
}

.close-line:last-child {
    transform: rotate(-45deg);
}

/* モバイルナビゲーション */
.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.mobile-menu-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 4rem;
}

.mobile-menu-item {
    opacity: 0;
    transform: translateX(-30px);
    animation: slideInLeft 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.mobile-menu-overlay.active .mobile-menu-item:nth-child(1) { animation-delay: 0.1s; }
.mobile-menu-overlay.active .mobile-menu-item:nth-child(2) { animation-delay: 0.2s; }
.mobile-menu-overlay.active .mobile-menu-item:nth-child(3) { animation-delay: 0.3s; }
.mobile-menu-overlay.active .mobile-menu-item:nth-child(4) { animation-delay: 0.4s; }

@keyframes slideInLeft {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.mobile-menu-link {
    text-decoration: none;
    color: #f4f4f4;
    font-size: 1.1rem;
    font-weight: 400;
    font-family: 'Josefin Sans', sans-serif;  /* Josefin Sans */
    letter-spacing: 0.2em;
    text-transform: uppercase;
    transition: var(--transition-smooth);
    display: inline-block;
    position: relative;
}

.mobile-menu-link:hover {
    color: #ffffff;
    transform: translateX(10px);
    text-shadow: 0 0 20px rgba(100, 150, 200, 0.8),
                 0 0 40px rgba(100, 150, 200, 0.5),
                 0 0 60px rgba(100, 150, 200, 0.3);
}

.mobile-menu-link:active {
    text-shadow: 0 0 30px rgba(100, 150, 255, 1),
                 0 0 60px rgba(100, 150, 255, 0.8),
                 0 0 90px rgba(100, 150, 255, 0.6);
}

/* ナビゲーション - ピル型コンテナ */
.nav {
    position: relative;
}

.nav-pill {
    background: var(--menu-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 50px;
    padding: 0.8rem 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    transition: var(--transition-smooth);
}

.nav-pill:hover {
    background: rgba(244, 244, 244, 0.35);
    box-shadow: 0 6px 30px rgba(0, 0, 0, 0.2);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    margin: 0;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: inline-block;
    text-decoration: none;
    color: var(--text-color);
    font-size: 0.9rem;
    font-weight: 400;
    font-family: 'Josefin Sans', sans-serif;  /* Josefin Sans Regular 400 */
    letter-spacing: 0.12em;
    padding: 0.5rem 0;
    position: relative;
    transition: var(--transition-smooth);
}

/* モダンなホバーエフェクト */
.nav-link::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--text-color);
    transform: translateX(-50%);
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 2px;
}

.nav-link:hover::before {
    width: 100%;
}

.nav-link:hover {
    transform: translateY(-2px);
    letter-spacing: 0.15em;
    text-shadow: 0 0 15px rgba(244, 244, 244, 0.3);
}

/* ヒーローセクション */
.hero {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
}

.hero-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: block;
    z-index: 1;
    image-rendering: auto;
    image-rendering: -webkit-optimize-contrast;
}

.hero-content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
    text-align: center;
    animation: fadeInUp 1.2s ease-out;
}

.hero-title {
    font-size: 5rem;
    font-weight: 700;
    font-family: 'Josefin Sans', sans-serif;  /* Josefin Sans */
    letter-spacing: 0.08em;  /* 0.15em → 0.08em（文字間を狭める） */
    margin-bottom: 1rem;
    text-shadow: 0 2px 30px rgba(0, 0, 0, 0.5);
}

.hero-title sup {
    font-size: 0.5em;  /* 0.4em → 0.5em（少し大きく） */
    font-weight: 300;  /* 細字にする */
    vertical-align: super;
    margin-left: 0.05em;
}

.hero-subtitle {
    font-size: 1.3rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    opacity: 0.95;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

/* メインコンテンツ */
.main-content {
    background-color: #000000;  /* var(--bg-color) → #000000 に変更して帯を削除 */
    min-height: 100vh;
    padding: 0 4rem 0 4rem;
}

.content-container {
    max-width: 1400px;
    margin: 0 auto;
}

/* The Philosophy セクション */
.philosophy-section {
    /* .main-contentのpaddingを打ち消して全幅にする */
    width: 100vw;
    position: relative;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
    max-width: 100vw;
    padding: 0;
}

.philosophy-text {
    text-align: center;
    margin-top: 4rem;
    margin-bottom: 4rem;
    animation: fadeInUp 1.2s ease-out;
}

.philosophy-title {
    font-size: 3.5rem;
    font-weight: 700;  /* Bold */
    font-family: 'Shippori Mincho B1', serif;  /* Shippori Mincho */
    letter-spacing: 0.08em;
    color: var(--text-color);
    margin-bottom: 4rem;
    position: relative;
    display: inline-block;
    transition: var(--transition-smooth);
}

.philosophy-title::after {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--text-color), transparent);
    opacity: 0;
    transition: var(--transition-smooth);
}

.philosophy-title:hover::after {
    opacity: 1;
    width: 120px;
}

.philosophy-title:hover {
    text-shadow: 0 0 30px rgba(244, 244, 244, 0.3);
    letter-spacing: 0.1em;
}

.philosophy-description {
    font-size: 1.1rem;
    font-weight: 400;
    font-family: 'Shippori Mincho B1', serif;
    line-height: 2.2;
    color: var(--text-color);
    opacity: 0.9;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 30px;  /* 左右30px余白 */
    text-align: center;  /* テキストは中央揃え */
}

.philosophy-images {
    width: 100vw;
    position: relative;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
    max-width: 100vw;
    animation: fadeInUp 1.4s ease-out;
}

.philosophy-image-wrapper {
    position: relative;
    width: 100%;
    height: 650px;
    overflow: hidden;
    border-radius: 0;
    transition: var(--transition-smooth);
}

.philosophy-image-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(to bottom,
        rgba(0, 0, 0, 1) 0%,
        rgba(0, 0, 0, 1) 5%,
        rgba(0, 0, 0, 0.98) 10%,
        rgba(0, 0, 0, 0.95) 15%,
        rgba(0, 0, 0, 0.9) 20%,
        rgba(0, 0, 0, 0.8) 30%,
        rgba(0, 0, 0, 0.6) 45%,
        rgba(0, 0, 0, 0.4) 60%,
        rgba(0, 0, 0, 0.2) 75%,
        rgba(0, 0, 0, 0.1) 90%,
        rgba(0, 0, 0, 0) 100%
    );
    z-index: 1;
    pointer-events: none;
    transition: var(--transition-smooth);
}

.philosophy-image-wrapper:hover::before {
    opacity: 0.7;
}

.philosophy-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
    transition: var(--transition-smooth);
}

/* 画像ズーム効果を除外
.philosophy-image-wrapper:hover .philosophy-img {
    transform: scale(1.03);
}
*/

/* Golden Lattice Matrix セクション */
.golden-lattice-section {
    width: 100vw;
    position: relative;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
    max-width: 100vw;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-top: 0;
    opacity: 1;
    transform: translateY(0);
    transition: opacity 1.2s ease-out, transform 1.2s ease-out;
}

.golden-lattice-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.golden-lattice-bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}

.golden-lattice-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 4rem 2rem;
    max-width: 900px;
    margin: 0 auto;
    animation: fadeInUp 1.2s ease-out;
}

.golden-lattice-title {
    font-size: 3.5rem;
    font-weight: 700;  /* Bold */
    font-family: 'Shippori Mincho B1', serif;  /* Shippori Mincho */
    letter-spacing: 0.08em;
    color: var(--text-color);
    margin-bottom: 4rem;
    position: relative;
    display: inline-block;
}

/* PC版では改行を非表示 */
.golden-lattice-title .mobile-br {
    display: none;
}

/* モバイル版のみ：Golden Lattice文字アニメーション */
@media (max-width: 767px) {
    /* モバイル版では改行を表示 */
    .golden-lattice-title .mobile-br {
        display: block;
    }

    .golden-lattice-title {
        opacity: 0;
        transform: translateY(50px) scale(0.9);
        letter-spacing: 0.02em;
    }

    .golden-lattice-description {
        opacity: 0;
        transform: translateY(20px);
    }

    /* 画面に映ったときにアニメーション開始 */
    .golden-lattice-section.visible .golden-lattice-title {
        animation: luxuryTitleEntrance 1.8s cubic-bezier(0.19, 1, 0.22, 1) 0.5s forwards;
    }

    .golden-lattice-section.visible .golden-lattice-description {
        animation: fadeInUpDesc 1.0s ease-out 0.6s forwards;
    }
}

@keyframes luxuryTitleEntrance {
    0% {
        opacity: 0;
        transform: translateY(50px) scale(0.9);
        letter-spacing: 0.02em;
    }
    60% {
        opacity: 0.7;
        transform: translateY(-5px) scale(1.02);
        letter-spacing: 0.06em;
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
        letter-spacing: 0.08em;
    }
}

@keyframes fadeInUpDesc {
    to {
        opacity: 0.9;
        transform: translateY(0);
    }
}

.golden-lattice-title sup {
    font-size: 0.4em;
    vertical-align: super;
    margin-left: 0.1em;
}

.golden-lattice-description {
    font-size: 1.1rem;
    font-weight: 400;
    font-family: 'Shippori Mincho B1', serif;
    line-height: 2.2;
    color: var(--text-color);
    opacity: 0.9;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 30px;  /* 左右30px余白 */
    text-align: center;  /* テキストは中央揃え */
}

/* ============================================
   Hero Sections - Luxury Brand Full-Width Layout
   Left Image, Right Text Overlay (Transparent)
   ============================================ */

/* CSS Custom Properties */
:root {
    --hero-height-desktop: 700px;
    --hero-height-tablet: 600px;
    --hero-height-mobile: 500px;
    --hero-gold: #d4af37;
}

/* Base Section Styles */
.hero-section {
    width: 100vw;
    position: relative;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
    max-width: 100vw;
    height: var(--hero-height-desktop);
    overflow: hidden;
    margin-top: 0;
    opacity: 0;  /* 初期状態で非表示 */
    transition: opacity 0.8s ease-out;  /* フェードインアニメーション */
}

/* Visible state - triggered by Intersection Observer */
.hero-section.visible {
    opacity: 1;  /* スクロール時に表示 */
}

/* Picture Element */
.hero-section picture {
    display: block;
    width: 100%;
    height: 100%;
}

/* Image Styles with Ken Burns Effect */
.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center left;
    display: block;
    animation: kenBurnsZoom 15s ease-out forwards;
}

/* Ken Burns Effect - Subtle Zoom */
@keyframes kenBurnsZoom {
    from {
        transform: scale(1.05);
    }
    to {
        transform: scale(1.0);
    }
}

/* Text Overlay Container - Desktop (Right Side by default) */
.hero-section .hero-text-overlay {
    position: absolute;
    right: 10%;
    top: 50%;
    transform: translateY(-50%);
    max-width: 600px;
    text-align: left;
    z-index: 2;
    opacity: 0;
    transition: opacity 1.2s ease-out;
}

/* Left Side Text for Section 2 */
.hero-section.hero-left .hero-text-overlay {
    right: auto;
    left: 10%;
}

/* Visible State (Triggered by Intersection Observer) */
.hero-section .hero-text-overlay.visible {
    opacity: 1;
}

/* Mobile Line Break Control */
.mobile-only {
    display: none;
}

/* Subtitle - "PURE BEAUTY" */
.hero-section .hero-subtitle {
    display: block;
    font-family: 'Shippori Mincho B1', serif;  /* Shippori Mincho */
    font-size: 11px;
    font-weight: 700;  /* Bold */
    text-transform: uppercase;
    color: var(--hero-gold);
    letter-spacing: 0.25em;
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.6s ease-out 0.2s, transform 0.6s ease-out 0.2s;
}

.hero-section .hero-text-overlay.visible .hero-subtitle {
    opacity: 1;
    transform: translateY(0);
}

/* Main Title - "清らかな、始まりの予感。" */
.hero-section .hero-title {
    font-family: 'Noto Serif JP', 'Yu Mincho', 'Shippori Mincho B1', serif;
    font-size: 52px;
    font-weight: 400;
    color: #ffffff;
    letter-spacing: 0.06em;
    line-height: 1.6;
    margin-bottom: 28px;
    text-shadow: 2px 4px 12px rgba(0, 0, 0, 0.7);
    white-space: nowrap; /* PC: 1行表示必須 */
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.4s,
                transform 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.4s;
}

.hero-section .hero-text-overlay.visible .hero-title {
    opacity: 1;
    transform: translateY(0);
}

/* Description Text */
.hero-section .hero-description {
    font-family: 'Shippori Mincho B1', serif;  /* Shippori Mincho */
    font-size: 16px;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.85);
    line-height: 2.0;
    letter-spacing: 0.03em;
    margin: 0;
    max-width: 500px;
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.8s ease-out 0.7s, transform 0.8s ease-out 0.7s;
}

.hero-section .hero-text-overlay.visible .hero-description {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Hero Content Group - 縦書き+横書き混在レイアウト
   (image02専用)
   ============================================ */

/* コンテンツグループ全体（Flexboxコンテナ） */
.hero-section .hero-content-group {
    position: absolute;
    right: 100px;               /* 固定マージン100px */
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;

    display: flex;
    flex-direction: row;        /* 横並び */
    align-items: flex-start;    /* 上揃え */
    gap: 50px;                  /* 要素間隔50px */

    opacity: 0;
    transition: opacity 1.2s ease-out;
}

.hero-section .hero-content-group.visible {
    opacity: 1;
}

/* 横書きエリア（左側） */
.horizontal-text-area {
    writing-mode: horizontal-tb;
    max-width: 550px;
    text-align: left;
}

/* 日本語説明文 */
.description-jp {
    font-family: 'Shippori Mincho B1', serif;  /* Shippori Mincho */
    font-size: 15px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.85);
    line-height: 2.0;
    letter-spacing: 0.03em;
    margin: 0 0 1.5rem 0;
    text-align: left;  /* テキストは左揃え */

    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease-out 0.2s,
                transform 0.8s ease-out 0.2s;
}

.hero-section .hero-content-group.visible .description-jp {
    opacity: 1;
    transform: translateY(0);
}

/* 英語説明文 */
.description-en {
    font-family: 'Shippori Mincho B1', serif;  /* Shippori Mincho */
    font-size: 14px;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.9;
    letter-spacing: 0.02em;
    margin: 0;

    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease-out 0.4s,
                transform 0.8s ease-out 0.4s;
}

.hero-section .hero-content-group.visible .description-en {
    opacity: 1;
    transform: translateY(0);
}

/* 縦書きキャッチコピー（右側） */
.vertical-title {
    writing-mode: vertical-rl;
    text-orientation: upright;

    font-family: 'Noto Serif JP', 'Yu Mincho', 'Shippori Mincho B1', serif;
    font-size: 42px;
    font-weight: 400;
    color: #ffffff;
    letter-spacing: 0.2em;
    line-height: 1.8;
    margin: 0;

    text-shadow: 2px 4px 12px rgba(0, 0, 0, 0.7);

    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.6s,
                transform 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.6s;
}

/* image04専用：PC版のみ黒文字＋影なし（高級感向上） */
@media (min-width: 768px) {
    .hero-section-image04 .vertical-title {
        color: #000000;
        text-shadow: none;
    }

    .hero-section-image04 .description-jp {
        color: rgba(0, 0, 0, 0.85);
    }

    .hero-section-image04 .description-en {
        color: rgba(0, 0, 0, 0.75);
    }
}

.hero-section .hero-content-group.visible .vertical-title {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Hero Content Group - 左寄せバリエーション
   (image03専用)
   ============================================ */

/* 左寄せコンテンツグループ */
.hero-section .hero-content-group.hero-content-left {
    right: auto;
    left: 100px;  /* 左端から100px */
}

/* 縦書きエリア（サブタイトル + キャッチコピー） */
.vertical-area {
    display: flex;
    flex-direction: row;  /* 縦書きなので横方向に並べる */
    align-items: flex-start;
    gap: 15px;  /* サブタイトルとキャッチコピーの間隔 */
}

/* 縦書きサブタイトル */
.vertical-subtitle {
    writing-mode: vertical-rl;
    text-orientation: upright;

    font-family: 'Shippori Mincho B1', serif;  /* Shippori Mincho */
    font-size: 10px;
    font-weight: 700;  /* Bold */
    text-transform: uppercase;
    color: #d4af37;  /* ゴールド */
    letter-spacing: 0.3em;

    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease-out 0.5s,
                transform 0.8s ease-out 0.5s;
}

.hero-section .hero-content-group.visible .vertical-subtitle {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Hero Sections - Responsive Design
   ============================================ */

/* Tablet - 1024px以下 */
@media (max-width: 1024px) {
    .hero-section {
        height: var(--hero-height-tablet);
    }

    .hero-section .hero-text-overlay {
        right: 8%;
        max-width: 520px;
    }

    .hero-section.hero-left .hero-text-overlay {
        left: 8%;
        right: auto;
    }

    .hero-section .hero-title {
        font-size: 44px;
    }

    .hero-section .hero-description {
        font-size: 15px;
        line-height: 1.95;
    }

    /* Hero Content Group - タブレット対応 */
    .hero-section .hero-content-group {
        right: 60px;
        gap: 30px;
    }

    .horizontal-text-area {
        max-width: 450px;
    }

    .vertical-title {
        font-size: 36px;
    }

    .description-jp {
        font-size: 14px;
    }

    .description-en {
        font-size: 13px;
    }

    /* 左寄せバリエーション（タブレット） */
    .hero-section .hero-content-group.hero-content-left {
        left: 60px;  /* 左端から60px */
    }

    .vertical-subtitle {
        font-size: 9px;
    }
}

/* Mobile - 767px以下 */
@media (max-width: 767px) {
    .hero-section {
        height: auto;  /* 固定高さを解除 */
        display: flex;
        flex-direction: column;  /* 縦積みレイアウト */
        background-color: #000000;  /* 黒背景（白い帯を防ぐ） */
    }

    /* テキストを下部中央に配置 */
    .hero-section .hero-text-overlay,
    .hero-section.hero-left .hero-text-overlay {
        position: absolute;
        bottom: 60px;
        left: 50%;
        right: auto;
        top: auto;
        transform: translateX(-50%);
        width: 90%;
        max-width: 400px;
        text-align: center;
    }

    /* モバイルで改行を有効化 */
    .mobile-only {
        display: inline;
    }

    /* タイトルの改行設定を解除 */
    .hero-section .hero-title {
        white-space: normal; /* モバイル: 2行表示 */
        font-size: 32px;
        line-height: 1.8;
    }

    .hero-section .hero-subtitle {
        font-size: 10px;
        letter-spacing: 0.22em;
    }

    .hero-section .hero-description {
        font-size: 14px;
        line-height: 1.9;
        max-width: 100%;
    }

    /* Hero Content Group - モバイル対応 */
    .hero-section .hero-content-group {
        position: static;  /* 絶対配置を解除 */
        flex-direction: column;  /* 縦積み */
        align-items: center;  /* 横方向中央揃え */
        justify-content: center;  /* 縦方向中央揃え */
        gap: 25px;  /* キャッチコピーと説明文の間隔 */
        width: 100%;
        max-width: 100%;
        height: auto;  /* コンテンツに合わせて自動調整 */
        padding: 100px 30px;  /* 上下100px、左右30px（中央配置） */
        background-color: #000000;  /* 背景色（黒） */
        order: 1;  /* テキストを後に表示（画像→テキスト） */
        margin: 0;
        margin-bottom: 0;  /* 念のため明示的に設定 */
        transform: none;
    }

    /* 横書きエリア（下に配置） */
    .horizontal-text-area {
        order: 2;  /* 2番目（下）に配置 */
        max-width: 100%;
        text-align: left;  /* 左揃え */
        width: 100%;
    }

    /* 縦書きタイトル（上に配置） - image02用 */
    .vertical-title {
        order: 1;  /* 1番目（上）に配置 */
        writing-mode: vertical-rl;  /* 縦書きを維持 */
        text-orientation: upright;
        font-size: 28px;  /* 26px → 28px（読みやすさ向上） */
        margin: 0;  /* gapで間隔を制御 */
        color: #ffffff;  /* 白色テキスト */
        text-shadow: none;  /* テキストシャドウを削除 */
    }

    .description-jp {
        font-size: 15px;  /* 14px → 15px（読みやすさ向上） */
        line-height: 1.9;
        margin: 0;  /* 英語説明文非表示のため下マージン削除 */
        color: rgba(255, 255, 255, 0.9);  /* 白色テキスト */
    }

    .description-en {
        display: none;  /* モバイルでは英語説明文を非表示 */
    }

    /* 左寄せバリエーション（モバイル） */
    .hero-section .hero-content-group.hero-content-left {
        /* モバイルでは左右の区別なし */
        position: static;
        height: auto;  /* コンテンツに合わせて自動調整 */
        background-color: #000000;  /* 背景色統一 */
        padding: 100px 30px;  /* 上下100px、左右30px（中央配置） */
    }

    /* 縦書きエリア（上に配置） - image03/04用 */
    .vertical-area {
        order: 1;  /* 1番目（上）に配置 */
        flex-direction: column;  /* サブタイトルとキャッチを縦積み */
        align-items: flex-start;  /* 内部要素は上端揃え */
        gap: 32px;  /* サブタイトルとキャッチコピーの間隔（30-35pxの中間） */
        margin: 0;  /* 上下パディングで制御 */
    }

    /* 縦書きサブタイトル */
    .vertical-subtitle {
        writing-mode: horizontal-tb;  /* 横書き */
        text-orientation: mixed;
        font-size: 9px;
        font-weight: 700;  /* Bold */
        letter-spacing: 0.25em;
        color: #d4af37;  /* ゴールド色を維持 */
        font-family: 'Shippori Mincho B1', serif;  /* Shippori Mincho */
    }

    /* 縦書きエリア内のタイトルも縦書き維持 */
    .vertical-area .vertical-title {
        writing-mode: vertical-rl;  /* 縦書きを維持 */
        text-orientation: upright;
        font-size: 28px;  /* 26px → 28px（読みやすさ向上） */
        margin: 0;
        color: #ffffff;  /* 白色テキスト */
        text-shadow: none;  /* テキストシャドウを削除 */
    }

    /* 画像を独立ブロックとして配置 */
    .hero-section picture {
        order: 0;  /* 画像を最初に表示（画像→テキスト） */
        width: 100%;
        height: 600px;  /* 固定高さ */
        margin: 0;  /* 念のため明示的に設定 */
        margin-top: 0;  /* 念のため明示的に設定 */
        padding: 0;  /* 念のため明示的に設定 */
        display: block;  /* インライン要素の隙間を削除 */
    }

    .hero-section .hero-image {
        width: 100%;
        height: 600px;  /* 固定高さ */
        object-fit: cover;
        object-position: center;
        display: block;  /* インライン要素の隙間を削除 */
        animation: luxuryImageZoom 12s cubic-bezier(0.25, 0.46, 0.45, 0.94) infinite alternate;
    }

    /* 高級ブランド風ズームアニメーション：わかりやすいズームイン→ズームアウト */
    @keyframes luxuryImageZoom {
        0% {
            transform: scale(1);
            filter: brightness(1);
        }
        50% {
            filter: brightness(1.05);
        }
        100% {
            transform: scale(1.15);
            filter: brightness(1);
        }
    }

    /* image04専用：背景色を設定して白い線を防ぐ */
    .hero-section-image04 {
        background-color: #000000;  /* 完全な黒 */
    }
}


/* アニメーション */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* レスポンシブ対応 */
@media (max-width: 1024px) {
    .header {
        padding: 1.5rem 2rem;
    }

    .nav-pill {
        padding: 0.7rem 1.5rem;
    }

    .nav-menu {
        gap: 2rem;
    }

    .nav-link {
        font-size: 0.85rem;
    }

    .hero-title {
        font-size: 4rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .philosophy-section {
        padding: 0;
    }

    .philosophy-text {
        margin-top: 5rem;
        margin-bottom: 5rem;
    }

    .philosophy-title {
        font-size: 3.2rem;
        margin-bottom: 5rem;
    }

    .philosophy-description {
        font-size: 1.05rem;
        line-height: 2.6;
        padding: 0 30px;
    }

    .philosophy-image-wrapper {
        height: 600px;
    }

    .golden-lattice-section {
        min-height: 90vh;
        margin-top: 0;
    }

    .golden-lattice-content {
        padding: 0;
    }

    .golden-lattice-title {
        font-size: 3.2rem;  /* The Philosophyと統一 */
    }

    .golden-lattice-description {
        font-size: 1.05rem;
        line-height: 2.4;
        padding: 0 30px;
    }

    .scroll-effect-section {
        height: 150vh;
    }

    .scroll-effect-text {
        width: 85%;
    }

    .scroll-effect-catchcopy {
        font-size: 2.5rem;
        margin-bottom: 2.5rem;
    }

    .scroll-effect-description {
        font-size: 1.05rem;
        line-height: 2.2;
    }
}

@media (max-width: 768px) {
    .header {
        padding: 1.5rem;
    }

    .logo {
        font-size: 1.3rem;
        color: var(--text-color);
    }

    /* デスクトップナビを非表示 */
    .desktop-nav {
        display: none;
    }

    /* ハンバーガーメニューを表示 */
    .hamburger-btn {
        display: flex;
    }

    /* モバイルメニューオーバーレイのロゴ色 */
    .mobile-menu-overlay .logo {
        color: #f4f4f4;
    }

    .hero-title {
        font-size: 3rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .main-content {
        padding: 0 2rem 0 2rem;  /* padding-bottomを0に変更して帯を削除 */
    }

    .philosophy-section {
        padding: 0;
        padding-top: 5rem;  /* 上部の黒いスペース（8rem→5rem） */
    }

    .philosophy-text {
        margin-top: 4rem;
        margin-bottom: 4rem;
    }

    .philosophy-title {
        font-size: 2.2rem;
        margin-bottom: 4rem;
        letter-spacing: 0.08em;
    }

    .philosophy-title::before {
        top: -2rem;
        width: 30px;
    }

    .philosophy-title::after {
        bottom: -1.5rem;
        width: 60px;
    }

    .philosophy-description {
        font-size: 0.95rem;
        line-height: 2.4;
        padding: 0 30px;
    }

    .philosophy-description::before,
    .philosophy-description::after {
        font-size: 2rem;
    }

    .philosophy-description br {
        display: none;
    }

    .philosophy-image-wrapper {
        height: 500px;
    }

    .golden-lattice-section {
        min-height: 80vh;
        margin-top: 0;
    }

    .golden-lattice-content {
        padding: 0;
    }

    .golden-lattice-title {
        font-size: 2.2rem;  /* 2.5rem → 2.2rem（The Philosophyと統一） */
        margin-bottom: 3rem;
    }

    .golden-lattice-description {
        font-size: 1rem;
        line-height: 2.2;
        padding: 0 30px;
    }

    .golden-lattice-description br {
        display: none;
    }

    .scroll-effect-section {
        height: 150vh;
    }

    .scroll-effect-text {
        width: 90%;
    }

    .scroll-effect-catchcopy {
        font-size: 2rem;
        margin-bottom: 2rem;
        letter-spacing: 0.08em;
    }

    .scroll-effect-description {
        font-size: 1rem;
        line-height: 2.2;
    }

    .scroll-effect-description br {
        display: none;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 1rem;
    }

    .logo {
        font-size: 1.1rem;
    }

    .hamburger-btn {
        width: 44px;
        height: 44px;
        padding: 12px 10px;
    }

    .mobile-menu-overlay {
        padding: 1.5rem 1rem;
    }

    .mobile-menu-link {
        font-size: 1rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 0.9rem;
    }

    .philosophy-section {
        padding: 0;
        padding-top: 4rem;  /* 上部の黒いスペース（6rem→4rem） */
    }

    .philosophy-text {
        margin-top: 2.5rem;
    }

    .philosophy-title {
        font-size: 2rem;
        margin-bottom: 2.5rem;
    }

    .philosophy-description {
        font-size: 0.95rem;
        line-height: 1.9;
        padding: 0 30px;
    }

    .philosophy-images {
        gap: 2.5rem;
    }

    .philosophy-image-wrapper {
        height: 380px;
    }

    .golden-lattice-section {
        min-height: 70vh;
        margin-top: 0;
    }

    .golden-lattice-content {
        padding: 0;
    }

    .golden-lattice-title {
        font-size: 2rem;
        margin-bottom: 2.5rem;
    }

    .golden-lattice-description {
        font-size: 0.95rem;
        line-height: 2;
        padding: 0 30px;
    }

    .golden-lattice-description br {
        display: none;
    }

    .scroll-effect-section {
        height: 150vh;
    }

    .scroll-effect-text {
        width: 95%;
    }

    .scroll-effect-catchcopy {
        font-size: 1.6rem;
        margin-bottom: 1.5rem;
        letter-spacing: 0.05em;
    }

    .scroll-effect-description {
        font-size: 0.9rem;
        line-height: 2;
    }

    .scroll-effect-description br {
        display: none;
    }
}


/* ============================================
   FAQ Accordion Section - Luxury Brand Style
   ============================================ */

.faq-section {
    width: 100vw;
    position: relative;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
    max-width: 100vw;
    background-color: #1a1a1a;
    padding: 4rem 2rem 3rem;
    margin-top: 0;
    margin-bottom: 0;
}

.faq-container {
    max-width: 1000px;
    margin: 0 auto;
}

.faq-section-title {
    font-size: 3.5rem;
    font-weight: 700;  /* Bold */
    font-family: 'Shippori Mincho B1', serif;  /* Shippori Mincho */
    letter-spacing: 0.05em;
    color: #ffffff;
    text-align: center;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.faq-section-subtitle {
    font-size: 1rem;
    font-weight: 300;
    font-family: 'Shippori Mincho B1', serif;
    letter-spacing: 0.1em;
    color: rgba(255, 255, 255, 0.7);
    text-align: center;
    margin-bottom: 5rem;
}

.faq-accordion {
    width: 100%;
}

.faq-item {
    border-bottom: 1px solid rgba(212, 175, 55, 0.2);
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 2.5rem 0;
    background: transparent;
    border: none;
    cursor: pointer;
    text-align: left;
    transition: all 0.3s ease;
}

.faq-question:hover {
    opacity: 0.8;
}

.faq-number {
    font-size: 1.2rem;
    font-weight: 300;
    font-family: 'Cochin', 'Georgia', 'Times New Roman', serif;
    color: #b3b3b3;
    letter-spacing: 0.1em;
    min-width: 3rem;
}

.faq-question-text {
    flex: 1;
    font-size: 1.15rem;
    font-weight: 400;
    font-family: 'Shippori Mincho B1', serif;
    color: #ffffff;
    letter-spacing: 0.05em;
    line-height: 1.6;
}

.faq-toggle {
    width: 48px;
    height: 48px;
    border: 1px solid rgba(255, 255, 255, 0.15);  /* 薄いボーダー、高級感 */
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    flex-shrink: 0;
    background-color: rgba(255, 255, 255, 0.02);  /* 非常に薄い背景 */
}

.faq-question:hover .faq-toggle {
    border-color: rgba(255, 255, 255, 0.3);  /* ホバー時少し濃く */
    background-color: rgba(255, 255, 255, 0.05);
    transform: rotate(90deg);
}

.faq-icon {
    position: relative;
    width: 14px;  /* 16px → 14px (少し小さく) */
    height: 14px;
}

.faq-icon::before,
.faq-icon::after {
    content: '';
    position: absolute;
    background-color: rgba(255, 255, 255, 0.4);  /* 薄い色 */
    transition: all 0.3s ease;
}

.faq-icon::before {
    width: 14px;  /* 16px → 14px */
    height: 1px;  /* 2px → 1px (細く) */
    top: 50%;
    left: 0;
    transform: translateY(-50%);
}

.faq-icon::after {
    width: 1px;  /* 2px → 1px (細く) */
    height: 14px;  /* 16px → 14px */
    top: 0;
    left: 50%;
    transform: translateX(-50%);
}

.faq-question[aria-expanded="true"] .faq-icon::after {
    opacity: 0;
    transform: translateX(-50%) rotate(90deg);
}

.faq-question[aria-expanded="true"] .faq-toggle {
    background-color: rgba(255, 255, 255, 0.08);  /* 展開時も薄く */
    border-color: rgba(255, 255, 255, 0.2);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease;
    opacity: 0;
}

.faq-answer.active {
    opacity: 1;
}

.faq-answer-content {
    padding: 0 0 2.5rem 5rem;
}

.faq-answer-content p {
    font-size: 0.95rem;
    font-weight: 300;
    font-family: 'Shippori Mincho B1', serif;
    color: rgba(255, 255, 255, 0.85);
    line-height: 2;
    letter-spacing: 0.05em;
    margin: 0;
}

/* もっと見るボタン */
.faq-show-more {
    text-align: center;
    margin-top: 2.5rem;  /* 4rem → 2.5rem に縮小 */
    margin-bottom: 2.5rem;  /* 4rem → 2.5rem に縮小 */
    padding-top: 1.5rem;  /* 3rem → 1.5rem に縮小 */
    padding-bottom: 1.5rem;  /* 3rem → 1.5rem に縮小 */
}

.faq-show-more-btn {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 3rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    font-weight: 400;
    font-family: 'Shippori Mincho B1', serif;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.faq-show-more-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.faq-show-more-btn:hover::before {
    width: 300px;
    height: 300px;
}

.faq-show-more-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.3);
    color: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
    letter-spacing: 0.15em;
}

.faq-show-more-btn .btn-text {
    position: relative;
    z-index: 1;
    transition: all 0.3s ease;
}

/* 非表示のFAQ項目 - スムーズなアニメーション */
.faq-item {
    transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.4, 0, 0.2, 1), max-height 0.6s ease;
    opacity: 1;
    transform: translateY(0);
    max-height: 500px;
    overflow: hidden;
}

.faq-item.hidden {
    opacity: 0;
    transform: translateY(-20px);
    max-height: 0;
    margin: 0;
    pointer-events: none;
}

/* 順番に表示されるアニメーション */
.faq-item:nth-child(6) { transition-delay: 0.05s; }
.faq-item:nth-child(7) { transition-delay: 0.1s; }
.faq-item:nth-child(8) { transition-delay: 0.15s; }
.faq-item:nth-child(9) { transition-delay: 0.2s; }
.faq-item:nth-child(10) { transition-delay: 0.25s; }

/* Tablet Styles */
@media (max-width: 1024px) {
    .faq-section {
        padding: 3rem 2rem;
    }

    .faq-section-title {
        font-size: 3rem;
    }

    .faq-question {
        gap: 1.5rem;
        padding: 2rem 0;
    }

    .faq-question-text {
        font-size: 1.05rem;
    }

    .faq-answer-content {
        padding: 0 0 2rem 4.5rem;
    }
}

/* Mobile Styles */
@media (max-width: 768px) {
    .faq-section {
        padding: 6rem 1.5rem 2.5rem 1.5rem;  /* 上部パディングを2.5rem → 6rem (2.4倍) */
    }

    .faq-section-title {
        font-size: 2.5rem;
    }

    .faq-section-subtitle {
        font-size: 0.9rem;
        margin-bottom: 3rem;
    }

    .faq-question {
        gap: 1rem;
        padding: 1.5rem 0;
    }

    .faq-number {
        font-size: 1rem;
        min-width: 2.5rem;
    }

    .faq-question-text {
        font-size: 1rem;
    }

    .faq-toggle {
        width: 40px;
        height: 40px;
    }

    .faq-icon {
        width: 14px;
        height: 14px;
    }

    .faq-icon::before {
        width: 14px;
    }

    .faq-icon::after {
        height: 14px;
    }

    .faq-answer-content {
        padding: 0 0 1.5rem 3.5rem;
    }

    .faq-answer-content p {
        font-size: 0.9rem;
        line-height: 1.9;
    }
}

/* Small Mobile Styles */
@media (max-width: 480px) {
    .faq-section {
        padding: 5rem 1rem 2rem 1rem;  /* 上部パディングを2rem → 5rem (2.5倍) */
    }

    .faq-section-title {
        font-size: 2rem;
    }

    .faq-question {
        gap: 0.75rem;
        padding: 1.25rem 0;
    }

    .faq-number {
        font-size: 0.9rem;
        min-width: 2rem;
    }

    .faq-question-text {
        font-size: 0.9rem;
    }

    .faq-answer-content {
        padding: 0 0 1.25rem 2.75rem;
    }

    .faq-answer-content p {
        font-size: 0.85rem;
    }
}

/* ===============================================
   フッター（Footer）
   =============================================== */

.footer {
    background: #000000;
    color: #ffffff;
    padding: 4rem 2rem 2rem;
    margin-top: 0;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
}

/* フッターコンテンツ（3カラムレイアウト） */
.footer-content {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    margin-bottom: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* ブランドカラム */
.footer-brand {
    text-align: left;
}

.footer-logo {
    font-size: 2rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: #ffffff;
    margin-bottom: 1rem;
    font-family: 'Josefin Sans', sans-serif;  /* Josefin Sans Regular 400 */
}

.footer-logo sup {
    font-size: 0.6em;  /* 0.5em → 0.6em（少し大きく） */
    font-weight: 300;  /* 細字にする */
    vertical-align: super;
    margin-left: 0.05em;
}

.footer-tagline {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.6);
    font-family: 'Noto Sans JP', sans-serif;
    letter-spacing: 0.05em;
    line-height: 1.8;
}

/* リンクカラム */
.footer-column {
    text-align: left;
}

.footer-heading {
    font-size: 1.125rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: #ffffff;
    margin-bottom: 1.5rem;
    font-family: 'Josefin Sans', sans-serif;  /* Josefin Sans Regular 400 */
    text-transform: uppercase;
}

.footer-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-item {
    margin-bottom: 0.75rem;
}

.footer-link {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-family: 'Josefin Sans', sans-serif;  /* Josefin Sans Regular 400 */
    letter-spacing: 0.05em;
    line-height: 2.2;
    transition: all 0.3s ease;
    display: inline-block;
}

.footer-link:hover {
    color: #ffffff;
    opacity: 0.9;
    text-decoration: underline;
    transform: translateX(5px);
}

/* フッターボトム */
.footer-bottom {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding-top: 2rem;
}

.footer-copyright {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
    text-align: center;
    font-family: 'Noto Sans JP', sans-serif;
    margin: 0;
}

.footer-privacy {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-family: 'Noto Sans JP', sans-serif;
    transition: all 0.3s ease;
}

.footer-privacy:hover {
    color: #ffffff;
    text-decoration: underline;
}

/* タブレット・PC版レイアウト（769px以上） */
@media (min-width: 769px) {
    .footer {
        padding: 5rem 4rem 2.5rem;
    }

    /* 3カラムグリッド */
    .footer-content {
        display: grid;
        grid-template-columns: 1.5fr 1fr 1fr;
        gap: 4rem;
        text-align: left;
    }

    .footer-brand {
        padding-right: 2rem;
    }

    .footer-logo {
        font-size: 2.5rem;
        margin-bottom: 1.25rem;
    }

    .footer-tagline {
        font-size: 1rem;
    }

    .footer-heading {
        font-size: 1.125rem;
        margin-bottom: 1.75rem;
    }

    .footer-link {
        font-size: 1rem;
    }

    /* フッターボトム：左右配置 */
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        padding-top: 2.5rem;
    }

    .footer-copyright {
        text-align: left;
        font-size: 0.875rem;
    }

    .footer-privacy {
        text-align: right;
        font-size: 0.875rem;
    }
}

/* 大型デスクトップ（1200px以上） */
@media (min-width: 1200px) {
    .footer {
        padding: 6rem 5rem 3rem;
    }

    .footer-content {
        gap: 5rem;
    }

    .footer-logo {
        font-size: 3rem;
    }

    .footer-tagline {
        font-size: 1.1rem;
    }
}

/* ===============================================
   Quality Section（品質へのこだわり）- 縦書き
   =============================================== */

.quality-section {
    position: relative;
    width: 100vw;
    min-height: 100vh;  /* height → min-height: コンテンツに応じて高さが伸びる */
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
    max-width: 100vw;
    overflow: hidden;
    background-color: #000000;
}

/* 背景パノラマスクロール */
.quality-bg-slideshow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;  /* はみ出し非表示 */
}

/* パノラマコンテナ（横並び） */
.quality-panorama {
    display: flex;
    flex-direction: row;
    width: 400vw;  /* 画像4枚分の幅 */
    height: 100%;
    animation: panoramaScroll 15s linear infinite;  /* 5秒/枚 × 3枚 = 15秒 */
    will-change: transform;
}

.quality-bg-img {
    width: 100vw;   /* 各画像は画面幅いっぱい */
    height: 100%;  /* 親要素の高さに合わせる */
    min-height: 100vh;  /* 最小高さは100vh */
    object-fit: cover;
    object-position: center center;
    filter: brightness(0.65);
    flex-shrink: 0;  /* 縮小防止 */
}

/* パノラマ自動スクロールアニメーション */
@keyframes panoramaScroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-300vw);  /* 3枚分左へ移動 */
    }
}

/* 背景オーバーレイ（左側を暗く、テキスト視認性向上） */
.quality-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to right,
        rgba(0, 0, 0, 0.5) 0%,
        rgba(0, 0, 0, 0.3) 40%,
        rgba(0, 0, 0, 0.1) 70%,
        transparent 100%
    );
    z-index: 1;
}

/* コンテンツレイヤー */
.quality-content {
    position: relative;
    z-index: 10;
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;  /* 全ての要素を上揃え */
    min-height: 100vh;  /* height: 100% → min-height: 100vh */
    padding-left: 100px;
    padding-right: 150px;
    padding-top: 80px;  /* 上部余白追加 */
    padding-bottom: 80px;  /* 下部余白追加 */
    gap: 80px;
}

/* 縦書き設定 */
.vertical-text {
    writing-mode: vertical-rl;
    text-orientation: upright;
    letter-spacing: 0.15em;
}

/* キャッチコピー（メイン） */
.quality-main-catch {
    font-size: 52px;
    font-weight: 700;
    font-family: 'Shippori Mincho B1', serif;
    color: #ffffff;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
    letter-spacing: 0.15em;
    line-height: 2.2;
    margin: 0;
    padding-left: 60px;
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.quality-section.visible .quality-main-catch {
    opacity: 1;
    transform: translateY(0);
}

/* 3つのコンテンツブロック */
.quality-blocks {
    display: flex;
    flex-direction: row;
    gap: 100px;
    align-items: flex-start;
}

.quality-block {
    display: flex;
    flex-direction: column;
    gap: 40px;
    max-height: 600px;
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.quality-section.visible .quality-block:nth-child(1) {
    transition-delay: 0.2s;
    opacity: 1;
    transform: translateY(0);
}

.quality-section.visible .quality-block:nth-child(2) {
    transition-delay: 0.4s;
    opacity: 1;
    transform: translateY(0);
}

.quality-section.visible .quality-block:nth-child(3) {
    transition-delay: 0.6s;
    opacity: 1;
    transform: translateY(0);
}

/* サブキャッチコピー */
.quality-sub-catch {
    font-size: 22px;
    font-weight: 600;
    font-family: 'Shippori Mincho B1', serif;
    color: #ffffff;
    letter-spacing: 0.1em;
    line-height: 2.3;
    margin: 0;
    opacity: 0.95;
}

/* 説明文 */
.quality-description {
    font-size: 15px;
    font-weight: 400;
    font-family: 'Yu Gothic', 'Noto Sans JP', sans-serif;
    color: #ffffff;
    letter-spacing: 0.08em;
    line-height: 2.2;
    margin: 0;
    opacity: 0.85;
}

/* 注釈 */
.quality-note {
    font-size: 12px;
    font-weight: 400;
    font-family: 'Yu Gothic', 'Noto Sans JP', sans-serif;
    color: #ffffff;
    letter-spacing: 0.05em;
    line-height: 2.0;
    margin: 0;
    opacity: 0.7;
    padding-top: 10px;
}

/* タブレット（769px - 1023px） */
@media (min-width: 769px) and (max-width: 1023px) {
    .quality-content {
        padding-left: 60px;
        padding-right: 100px;
        gap: 60px;
    }

    .quality-main-catch {
        font-size: 44px;
        padding-left: 50px;
    }

    .quality-blocks {
        gap: 70px;
    }

    .quality-block {
        max-height: 500px;
        gap: 30px;
    }

    .quality-sub-catch {
        font-size: 20px;
    }

    .quality-description {
        font-size: 14px;
    }

    .quality-note {
        font-size: 11px;
    }
}

/* モバイル（〜768px）：横書きに切り替え */
@media (max-width: 768px) {
    .quality-section {
        height: auto;
        min-height: 100vh;
        display: flex;
        align-items: center;
    }

    .quality-content {
        flex-direction: column;
        padding: 40px 30px;
        gap: 50px;
        align-items: flex-start;
        justify-content: center;
        min-height: auto;
    }

    /* 縦書き→横書き */
    .vertical-text {
        writing-mode: horizontal-tb;
        text-orientation: mixed;
        letter-spacing: 0.1em;
    }

    .quality-main-catch {
        font-size: 32px;
        font-weight: 700;
        line-height: 1.8;
        padding-left: 0;
        padding-right: 0;
        margin-bottom: 20px;
        order: -1; /* モバイルでは最初に表示 */
    }

    .quality-blocks {
        flex-direction: column;
        gap: 40px;
        width: 100%;
        height: auto;
        order: 1;
    }

    .quality-block {
        max-height: none;
        gap: 20px;
    }

    .quality-sub-catch {
        font-size: 18px;
        line-height: 1.8;
    }

    .quality-description {
        font-size: 14px;
        line-height: 1.9;
    }

    .quality-note {
        font-size: 11px;
        line-height: 1.7;
    }

    /* モバイルではオーバーレイを全体に */
    .quality-overlay {
        background: rgba(0, 0, 0, 0.4);
    }

    .quality-bg-img {
        filter: brightness(0.5);
    }
}

/* 小型モバイル（〜480px） */
@media (max-width: 480px) {
    .quality-content {
        padding: 30px 20px;
        gap: 40px;
    }

    .quality-main-catch {
        font-size: 28px;
    }

    .quality-blocks {
        gap: 35px;
    }

    .quality-sub-catch {
        font-size: 16px;
    }

    .quality-description {
        font-size: 13px;
    }

    .quality-note {
        font-size: 10px;
    }
}