/* ===== css\base.css ===== */
/* ========================================
   リセット & ベーススタイル
======================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* レスポンシブ改行制御 */
.br-sp {
    display: none;
}

.br-pc {
    display: inline;
}

@media (max-width: 767px) {
    .br-sp {
        display: inline;
    }
    
    .br-pc {
        display: none;
    }
}

:root {
    /* カラー変数 */
    --color-white: #FFFFFF;
    --color-off-white: #FAFAFA;
    --color-black: #111111;
    --color-text-dark: #333333;
    --color-navy: #0F172A;
    
    /* フォント変数 */
    --font-sans: "Yu Gothic", "游ゴシック", "Noto Sans JP", sans-serif;
    --font-serif: "Yu Gothic", "游ゴシック", "Noto Sans JP", sans-serif;
    
    /* スペーシング */
    --spacing-xs: 1rem;
    --spacing-sm: 2rem;
    --spacing-md: 4rem;
    --spacing-lg: 6rem;
    --spacing-xl: 8rem;
    --spacing-xxl: 12rem;
    
    /* コンテナ幅 */
    --container-width: 1200px;
    --container-padding: 2rem;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-sans);
    font-weight: 300;
    font-size: 18px;
    line-height: 1.8;
    color: var(--color-text-dark);
    background-color: var(--color-white);
    letter-spacing: 0.12em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    width: 100%;
}

/* ===== css\layout\container.css ===== */
/* ========================================
   コンテナ
======================================== */

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    width: 100%;
}
/* ===== css\layout\section.css ===== */

/* ========================================
   セクション共通
======================================== */

.section {
    padding: var(--spacing-xl) 0;
}

.section__title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-family: var(--font-sans);
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.08em;
}

.section__title--serif {
    font-family: var(--font-sans);
    font-weight: 700;
}

/* ===== css\components\loading.css ===== */
/* ========================================
   ローディング画面
======================================== */

.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 1;
    pointer-events: none;
}

.loading-logo {
    width: clamp(100px, 12vw, 150px);
    opacity: 0;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

p {
    text-align: left;
}

/* ===== css\components\buttons.css ===== */
/* ========================================
   ボタン
======================================== */

.btn {
    display: inline-block;
    padding: 1.2rem 3.5rem;
    border: 1px solid var(--color-black);
    background-color: transparent;
    color: var(--color-black);
    font-size: 1.1rem;
    font-weight: 300;
    letter-spacing: 0.12em;
    transition: all 0.3s ease;
    cursor: pointer;
}

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

.btn--large {
    padding: 1.5rem 5rem;
    font-size: 1.25rem;
}

/* 固定ヘッダーアクション（右上コンテナ） */
.header-actions {
    position: fixed;
    top: 2rem;
    right: 2rem;
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    opacity: 0;
}

/* 固定お問い合わせボタン */
.btn-fixed-contact {
    display: inline-block;
    padding: 0.9rem 2rem;
    border: 1px solid var(--color-black);
    border-radius: 4px;
    background-color: var(--color-white);
    color: var(--color-black);
    font-size: 1rem;
    font-weight: 300;
    letter-spacing: 0.12em;
    transition: all 0.3s ease;
    cursor: pointer;
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    will-change: transform, background-color, color;
    white-space: nowrap;
}

.btn-fixed-contact:hover {
    background-color: var(--color-black);
    color: var(--color-white);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    transform: translateY(-2px);
}

/* ハンバーガーボタン */
.hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    background: var(--color-white);
    border: 1px solid var(--color-black);
    border-radius: 4px;
    cursor: pointer;
    padding: 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    flex-shrink: 0;
    transition: background 0.3s ease;
}

.hamburger:hover {
    background: var(--color-black);
}

.hamburger__line {
    display: block;
    width: 20px;
    height: 1.5px;
    background: var(--color-black);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease, background 0.3s ease;
    transform-origin: center;
}

.hamburger:hover .hamburger__line {
    background: var(--color-white);
}

/* ハンバーガー → ✕ 変形 */
.hamburger.is-active .hamburger__line:nth-child(1) {
    transform: translateY(6.5px) rotate(45deg);
}
.hamburger.is-active .hamburger__line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}
.hamburger.is-active .hamburger__line:nth-child(3) {
    transform: translateY(-6.5px) rotate(-45deg);
}

/* ドロワーオーバーレイ */
.drawer__overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1100;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}
.drawer__overlay.is-open {
    opacity: 1;
    pointer-events: auto;
}

/* ドロワー本体 */
.drawer {
    position: fixed;
    top: 0;
    right: 0;
    width: min(320px, 85vw);
    height: 100dvh;
    background: var(--color-white);
    z-index: 1200;
    padding: 6rem 2.5rem 3rem;
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
}
.drawer.is-open {
    transform: translateX(0);
}

.drawer__list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.drawer__link {
    display: block;
    padding: 1.2rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    color: var(--color-black);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 300;
    letter-spacing: 0.1em;
    transition: opacity 0.2s ease, padding-left 0.2s ease;
}
.drawer__link:hover {
    opacity: 0.5;
    padding-left: 0.5rem;
}

.drawer__link--cta {
    margin-top: 2rem;
    padding: 1rem 1.5rem;
    border: 1px solid var(--color-black);
    border-radius: 4px;
    text-align: center;
    font-weight: 400;
    transition: background 0.3s ease, color 0.3s ease;
}
.drawer__link--cta:hover {
    background: var(--color-black);
    color: var(--color-white);
    opacity: 1;
    padding-left: 1.5rem;
}

/* ===== css\sections\hero.css ===== */
/* ========================================
   ① ファーストビュー
======================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    padding: 0;
    margin: 0;
    background-color: var(--color-white); /* 初期状態は純白 */
    overflow: hidden;
}

/* 背景画像レイヤー */
.hero__bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 0;
    opacity: 0; /* 初期状態は非表示 */
    transform: scale(1.1); /* ズーム用の初期スケール */
    will-change: opacity, transform;
}

/* 各背景画像の設定 */
.hero__bg-0 {
    background-image: url('imgfile/hero-bg_imotoCEO.webp');
}

.hero__bg-1 {
    background-image: url('imgfile/hero-bg.webp?v=2');
}

.hero__bg-2 {
    background-image: url('imgfile/hero-bg02.webp?v=2');
}

.hero__bg-3 {
    background-image: url('imgfile/hero-bg03.webp?v=2');
}

/* 背景画像のオーバーレイ（黒い膜で引き締める） */
.hero__bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.0);
    z-index: 1;
}

/* ロゴ */
.hero__logo {
    position: fixed;
    top: 2rem;
    left: 2rem;
    z-index: 1000;
    width: clamp(100px, 12vw, 150px);
    opacity: 0;
}

.hero__logo img {
    width: 100%;
    height: auto;
    display: block;
}

.hero .container {
    position: relative;
    z-index: 2;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-end;
    padding: 0 8% 5% 8%;
    height: 100vh;
}

.hero__main-copy {
    font-size: clamp(1.8rem, 4.5vw, 4rem);
    font-family: var(--font-sans);
    font-weight: 700;
    line-height: 1.5;
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.12em;
    text-align: left;
    width: 100%;
    overflow: hidden;
    padding: 0;
    color: var(--color-white);
}

/* メインコピーの行 */
.hero__copy-line {
    display: block;
    white-space: nowrap;
    opacity: 0;
    transform: translateY(100%);
    will-change: opacity, transform;
    max-width: 100%;
    overflow: visible;
}

.hero__sub-copy {
    font-size: clamp(0.95rem, 2.2vw, 1.3rem);
    font-weight: 300;
    line-height: 1.8;
    margin-bottom: 3rem;
    color: var(--color-white);
    text-align: left;
    width: 100%;
    letter-spacing: 0.12em;
    opacity: 0;
    transform: translateY(20px);
    will-change: opacity, transform;
}

/* ヒーローセクション内のボタン */
.hero .btn {
    opacity: 0; /* 初期状態は非表示 */
    transform: translateY(20px);
    will-change: opacity, transform;
}

/* スクロール促進インジケーター */
.hero__scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0;
    transform: translateY(20px);
    will-change: opacity, transform;
    cursor: pointer;
    transition: opacity 0.3s ease;
}

.hero__scroll-indicator:hover {
    opacity: 0.7;
}

.hero__scroll-text {
    font-size: 0.75rem;
    font-weight: 300;
    letter-spacing: 0.2em;
    color: var(--color-white);
}

.hero__scroll-arrow {
    animation: scroll-bounce 2s ease-in-out infinite;
}

@keyframes scroll-bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(10px);
    }
}


/* ========================================
   ① ファーストビュー リニューアル（2026.03）
   動画（1回再生） → 画像スライドショー切替
   左: 動画/スライドパネル  右: テキストパネル
======================================== */

/* レイアウト: 左動画パネル / 右テキストパネル */
.hero {
    background-color: #fdfdfd;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    justify-content: flex-start;
    text-align: left;
}

/* 動画＆スライドショーパネル（絶対配置・左側） */
.hero__media-panel {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    width: 100%;
    height: 50vh;
    overflow: hidden;
}

/* グリッド装飾線コンテナ（動画・スライド背景の後ろに配置） */
.hero__grid-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

/* グリッド線 共通 */
.hero__grid-line {
    position: absolute;
    background-color: rgba(0, 0, 0, 0.07);
}

/* 縦線 */
.hero__grid-line--v {
    top: 0;
    bottom: 0;
    width: 1px;
    transform-origin: top center;
    transform: scaleY(0);
    will-change: transform, opacity;
}

/* 横線（SP: 全幅、PC: テキストパネル側のみ） */
.hero__grid-line--h {
    left: 0;
    right: 0;
    height: 1px;
    transform-origin: left center;
    transform: scaleX(0);
    will-change: transform, opacity;
}

/* テキストコンテナ（SP: 動画パネルの下） */
.hero .container {
    position: relative;
    z-index: 10;
    max-width: none;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 2rem 8% 4rem;
    padding-top: 52vh;
    height: auto;
    min-height: 100vh;
    margin: 0;
}

/* コピーグループ（h1 + p の右端をそろえる） */
.hero__copy-group {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
}

/* メインコピー（暗色テキスト） */
.hero__main-copy {
    color: var(--color-black);
    margin-bottom: 1rem;
    text-align: left;
}

/* コピーライン（白ボックス） */
.hero__copy-line {
    display: inline-block;
    white-space: nowrap;
    background-color: #ffffff;
    padding: 0.5rem 1.2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    margin-bottom: 0.4rem;
    color: var(--color-black);
    opacity: 0;
    transform: translateX(30px);
    will-change: opacity, transform;
}

/* サブコピー（暗色） */
.hero__sub-copy {
    color: var(--color-text-dark);
    text-align: left;
}

/* スクロールインジケーター（暗色） */
.hero__scroll-indicator {
    color: var(--color-text-dark);
    margin-top: 2rem;
    align-self: flex-start;
}

.hero__scroll-text {
    color: currentColor;
}

/* ロゴをメディアパネル上に表示 */
.hero__logo {
    z-index: 1000;
}

/* =========================================
   PC: 右テキストパネルレイアウト
========================================= */
@media (min-width: 768px) {
    .hero__media-panel {
        width: 60%;
        height: 100%;
    }

    /* 横グリッド線はテキストパネル側のみ */
    .hero__grid-line--h {
        left: 58%;
    }

    /* PC: 縦線20vw間隔に合わせて横線も正方形セルになるよう調整（16:9 で約35%≒正方形） */
    .hero__grid-overlay > div:nth-child(5) { top: 33.33% !important; }
    .hero__grid-overlay > div:nth-child(6) { top: 66.67% !important; }
    .hero__grid-overlay > div:nth-child(7) { top: 100%   !important; }
    .hero__grid-overlay > div:nth-child(8) { top: 133%   !important; }

    /* テキストコンテナを右パネルに配置 */
    .hero .container {
        padding-top: 0;
        padding-left: 45%;
        padding-right: clamp(2rem, 5vw, 6rem);
        padding-bottom: 0;
        height: 100vh;
        min-height: 0;
        align-items: flex-start;
        justify-content: center;
        text-align: left;
    }

    .hero__main-copy {
        text-align: right;
        width: max-content;
        max-width: 100%;
    }

    .hero__copy-line {
        padding: 0.7rem 1.5rem;
        margin-bottom: 0.5rem;
    }

    /* コピーグループ: 右端を基準に揃える */
    .hero__copy-group {
        align-items: flex-end;
        width: fit-content;
        max-width: 100%;
    }

    .hero__sub-copy {
        text-align: right;
        width: max-content;
        max-width: 100%;
    }

    .hero__scroll-indicator {
        position: absolute;
        bottom: 3rem;
        left: 45%;
        right: clamp(2rem, 5vw, 6rem);
        align-self: auto;
        margin-top: 0;
        color: var(--color-text-dark);
    }
}

/* =========================================
   SP: モバイル上書き（既存スタイル適切化）
========================================= */
@media (max-width: 767px) {
    .hero .container {
        padding-top: 52vh;
        height: auto;
        justify-content: flex-start;
        align-items: flex-start;
    }

    .hero__copy-line {
        white-space: normal;
    }
}
/* ===== css\sections\question.css ===== */
/* ========================================
   ② 問いかけ
======================================== */

.question {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    /* 背景画像 */
    background-image: url('imgfile/question-bg.webp');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed; /* パララックス効果 */
    color: var(--color-white);
    padding: 0;
    margin: 0;
    position: relative;
    overflow: hidden;
}

/* ダークオーバーレイ（Netflix風） */
.question::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        180deg,
        rgba(0, 0, 0, 0.85) 0%,
        rgba(0, 0, 0, 0.75) 50%,
        rgba(0, 0, 0, 0.85) 100%
    );
    pointer-events: none;
    z-index: 1;
}

/* より深い没入感のためのビネット効果 */
.question::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(
        ellipse at center,
        transparent 0%,
        transparent 30%,
        rgba(0, 0, 0, 0.4) 100%
    );
    pointer-events: none;
    z-index: 1;
}

.question .container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
}

.question__wrapper {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.question__text {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.6;
    text-align: center;
    letter-spacing: 0.02em;
    opacity: 0; /* GSAPで制御 */
    text-shadow: 0 4px 30px rgba(0, 0, 0, 0.8); /* 強めの影でテキストを際立たせる */
}

.question__text--why {
    width: fit-content;
    margin: 0 auto;
    padding: 0;
    font-weight: 700;
}

.question__prefix {
    display: block;
    width: 100%;
    text-align: center;
    background: var(--color-white);
    color: var(--color-black);
    font-size: 1em;
    line-height: 1.2;
    border-radius: 0;
    padding: 0.12em 0.4em;
    transform: translateY(-0.35em);
    margin-bottom: -0.15em;
    text-shadow: none;
    font-weight: 400;
}

.question__highlight {
    position: relative;
    display: inline-block;
}

.question__highlight::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0.1em;
    width: var(--underline-width, 0%);
    height: 3px;
    background-color: var(--color-white);
    transform-origin: left;
}

/* ===== css\sections\concept.css ===== */
/* ========================================
   ③ 解決提示
======================================== */

.concept {
    background-color: var(--color-white);
    text-align: center;
    position: relative;
}

.concept::before {
    display: none;
}

.concept .container {
    max-width: 980px;
}

.concept__title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-family: var(--font-sans);
    font-weight: 700;
    letter-spacing: 0.1em;
    line-height: 1.4;
    margin-bottom: var(--spacing-md);
    color: var(--color-black);
    white-space: nowrap;
}

.concept__intro {
    font-size: clamp(1.125rem, 2.5vw, 1.375rem);
    line-height: 2;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    color: var(--color-text-dark);
    font-weight: 300;
}

.concept__old {
    background: #E9EDF2;
    border: 1px solid #D7DDE5;
    border-radius: 16px;
    padding: 2rem 2.5rem;
    max-width: 760px;
    margin: 0 auto 3.5rem;
}

.concept__old-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: clamp(1.1rem, 2.4vw, 1.35rem);
    letter-spacing: 0.08em;
    color: #4B5563;
    margin-bottom: 0.75rem;
    font-weight: 700;
}

.concept__old-label-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #374151;
    transform: scale(1.15);
}

.concept__old-flow {
    font-size: clamp(1.1rem, 2.6vw, 1.45rem);
    letter-spacing: 0.08em;
    color: #1F2937;
    font-weight: 500;
    line-height: 1.9;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.concept__flow-item {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.concept__flow-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #374151;
}

.concept__flow-arrow {
    color: #4B5563;
    font-weight: 700;
}

.concept__old-divider {
    border: none;
    border-top: 1px solid #D7DDE5;
    max-width: 760px;
    margin: 0 auto 3.5rem;
}

.concept__new {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.1rem;
    max-width: 560px;
    margin: 0 auto 3.5rem;
    align-items: center;
}

.concept__new-cross {
    --concept-cross-size: clamp(2rem, 3.5vw, 2.8rem);
    font-size: var(--concept-cross-size);
    font-family: var(--font-sans);
    font-weight: 700;
    color: #4B5563;
    line-height: 1;
    text-align: center;
}

.concept-card--new {
    background: var(--color-white);
    border-radius: 16px;
    padding: 1.75rem 2rem;
    text-align: left;
    box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.08);
}

.concept-card__title {
    font-size: clamp(1rem, 2.2vw, 1.2rem);
    font-weight: 700;
    letter-spacing: 0.08em;
    line-height: 1.75;
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid #F1F1F1;
    color: var(--color-black);
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.concept__new .concept-card:first-child .concept-card__title {
    white-space: nowrap;
}

.concept-card__title-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #111827;
    flex-shrink: 0;
}

.concept-card--new .concept-card__title-icon svg {
    width: 26px;
    height: 26px;
}

.concept-card__text {
    font-size: clamp(0.875rem, 1.8vw, 1rem);
    color: var(--color-text-dark);
    letter-spacing: 0.07em;
    line-height: 2;
    font-weight: 300;
}

.concept__closing {
    font-size: clamp(2rem, 4.6vw, 3.2rem);
    line-height: 1.6;
    letter-spacing: 0.06em;
    font-family: var(--font-sans);
    font-weight: 700;
    color: var(--color-black);
    text-align: center;
}

@media (max-width: 767px) {
    .concept__title {
        margin-bottom: 1.8rem;
        white-space: normal;
    }

    .concept__intro {
        margin-bottom: 2.8rem;
        line-height: 1.95;
    }

    .concept__old {
        padding: 1.4rem 1.2rem;
        margin-bottom: 2rem;
    }

    .concept__old-label {
        font-size: clamp(1rem, 4.8vw, 1.2rem);
    }

    .concept__old-flow {
        font-size: clamp(0.95rem, 4vw, 1.1rem);
        letter-spacing: 0.06em;
        gap: 0.55rem;
    }

    .concept__flow-item {
        gap: 0.35rem;
    }

    .concept__new {
        gap: 1rem;
        margin-bottom: 2rem;
    }

    .concept__new-cross {
        --concept-cross-size: clamp(1.8rem, 8vw, 2.4rem);
    }

    .concept-card--new {
        padding: 1.5rem;
    }

    .concept-card__title {
        gap: 0.55rem;
    }

    .concept__new .concept-card:first-child .concept-card__title {
        white-space: nowrap;
        font-size: 1rem;
        letter-spacing: 0.02em;
    }

    .concept-card__title-icon svg {
        width: 30px;
        height: 30px;
    }

    .concept__closing {
        font-size: clamp(1.45rem, 7vw, 2.05rem);
        line-height: 1.7;
        letter-spacing: 0.05em;
    }
}

/* ===== css\sections\global-sec.css ===== */
/* ========================================
   ④ 海外文脈
======================================== */

.global {
    background-image: url('imgfile/global-architecture.webp');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--color-white);
    text-align: center;
    position: relative;
}

/* ダークオーバーレイ（テキストを読みやすく） */
.global::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.85);
    z-index: 1;
}

.global .container {
    position: relative;
    z-index: 2;
}

.global .section__title {
    color: var(--color-white);
}

.global__pill {
    display: inline-block;
    background: var(--color-white);
    color: var(--color-black);
    font-size: 1.16em;
    font-weight: 700;
    line-height: 1;
    padding: 0.08em 0.24em;
    margin: 0 0.04em;
    vertical-align: baseline;
}

/* 文字アニメーション用スタイル */
.global .section__title .char {
    display: inline-block;
    will-change: opacity, transform;
}

.global__lead {
    font-size: clamp(1.25rem, 2.8vw, 1.5rem);
    line-height: 2.2;
    max-width: 800px;
    margin: 0 auto;
    font-weight: 300;
    will-change: opacity, transform;
}

/* ===== css\sections\partner.css ===== */
/* ========================================
   ⑤ 技術力のある工務店との提携
======================================== */

.partner {
    background-color: var(--color-white);
    text-align: center;
}

/* 文字アニメーション用スタイル */
.partner .section__title .char {
    display: inline-block;
    will-change: opacity, transform;
}

.partner__lead {
    font-size: clamp(1.2rem, 2.7vw, 1.5rem);
    line-height: 2;
    max-width: 800px;
    margin: 0 auto;
    font-weight: 300;
    will-change: opacity, transform;
}

.partner__lead strong {
    font-weight: 700;
    color: var(--color-black);
}

.partner__lead--top {
    margin-bottom: var(--spacing-md);
}

.partner__lead--bottom {
    margin-top: var(--spacing-md);
}

.partner__images {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    max-width: 1200px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .partner__lead--top,
    .partner__lead--bottom {
        max-width: 980px;
    }
}

.partner__image {
    overflow: hidden;
    border-radius: 8px;
    will-change: opacity, transform;
}

.partner__image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.6s ease;
}

/* ホバー効果（Appleスタイル） */
.partner__image:hover img {
    transform: scale(1.05);
}

/* ===== css\sections\platform.css ===== */
/* ========================================
   ⑥ プラットフォーム構造図
======================================== */

/* ========================================
   ⑥ 三位一体のプラットフォーム
======================================== */

.trinity {
    position: relative;
    background-color: var(--color-off-white);
    text-align: center;
    padding: var(--spacing-xxl) 0;
}

.trinity .container {
    position: relative;
    z-index: 1;
}

.trinity__lead {
    font-size: clamp(1.125rem, 2.5vw, 1.375rem);
    color: #666;
    margin-bottom: 5rem;
    font-weight: 300;
    letter-spacing: 0.12em;
    text-align: center;
}

/* カードグリッド */
.trinity__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* PC: 3カラムレイアウト */
@media (min-width: 768px) {
    .trinity__grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 3rem;
    }
}

/* カードスタイル */
.trinity__card {
    background: linear-gradient(135deg, #ffffff 0%, #fafafa 100%);
    padding: 0;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    text-align: center;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

/* カード背景グラデーション */
.trinity__card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(0, 0, 0, 0.02) 0%, transparent 60%);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.5s ease;
}

/* カードホバーエフェクト */
.trinity__card:hover {
    transform: translateY(-12px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
    border-color: rgba(0, 0, 0, 0.1);
}

.trinity__card:hover::after {
    opacity: 1;
}

/* カードヘッダー */
.trinity__card-header {
    position: relative;
    padding: 2rem 2rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

/* カード番号 */
.trinity__card-number {
    font-size: clamp(2rem, 3.5vw, 2.8rem);
    font-weight: 200;
    color: rgba(0, 0, 0, 0.06);
    letter-spacing: -0.02em;
    line-height: 1;
    position: absolute;
    top: 0.75rem;
    left: 1.25rem;
    z-index: 0;
}

/* カードアイコン */
.trinity__card-icon {
    margin-left: auto;
    color: #333;
    opacity: 0.7;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 1;
}

.trinity__card-icon svg {
    width: 36px;
    height: 36px;
}

.trinity__card:hover .trinity__card-icon {
    opacity: 1;
    transform: translateY(-4px) scale(1.05);
    color: #000;
}

/* カードコンテンツ */
.trinity__card-content {
    padding: 0 2rem 2.5rem;
    position: relative;
    z-index: 1;
}

/* カードタイトル */
.trinity__card-title {
    font-size: clamp(1.375rem, 3vw, 1.75rem);
    font-weight: 400;
    letter-spacing: 0.12em;
    margin-bottom: 0.5rem;
    color: var(--color-black);
    transition: color 0.3s ease;
}

.trinity__card:hover .trinity__card-title {
    color: #000;
}

/* カードサブタイトル */
.trinity__card-sub {
    font-size: clamp(0.75rem, 1.5vw, 0.875rem);
    font-weight: 300;
    color: #aaa;
    margin-bottom: 1.25rem;
    letter-spacing: 0.12em;
}

/* ディバイダー */
.trinity__card-divider {
    width: 32px;
    height: 2px;
    background: linear-gradient(90deg, #333 0%, transparent 100%);
    margin: 1.25rem auto;
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.trinity__card:hover .trinity__card-divider {
    width: 80px;
}

/* カード説明テキスト */
.trinity__card-text {
    font-size: clamp(0.8125rem, 1.6vw, 0.9375rem);
    line-height: 2;
    color: #555;
    letter-spacing: 0.08em;
    font-weight: 300;
}

/* アクセントライン */
.trinity__card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, #111 0%, #666 50%, #111 100%);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 2;
}

.trinity__card:hover::before {
    transform: scaleX(1);
}

/* ===== css\sections\cases.css ===== */
/* ========================================
   ⑦ 実例紹介
======================================== */

.cases {
    background-color: var(--color-white);
    text-align: center;
}

.cases__lead {
    font-size: clamp(1rem, 2.2vw, 1.25rem);
    line-height: 2;
    color: #666;
    margin-bottom: clamp(3rem, 6vw, 5rem);
    font-weight: 300;
    text-align: center;
}

.cases__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 400px), 1fr));
    gap: clamp(2rem, 4vw, 3rem);
    margin-bottom: clamp(3rem, 6vw, 5rem);
}

.case-card {
    display: block;
    text-decoration: none;
    color: inherit;
    background: var(--color-white);
    border-radius: clamp(0.75rem, 1.5vw, 1.25rem);
    overflow: hidden;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 0.5rem 2rem rgba(0, 0, 0, 0.08);
}

.case-card:hover {
    transform: translateY(-0.75rem);
    box-shadow: 0 2rem 4rem rgba(0, 0, 0, 0.15);
}

.case-card__image {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.case-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.case-card:hover .case-card__image img {
    transform: scale(1.08);
}

.case-card__overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.case-card:hover .case-card__overlay {
    opacity: 1;
}

.case-card__view {
    color: var(--color-white);
    font-size: clamp(0.875rem, 2vw, 1rem);
    font-weight: 500;
    letter-spacing: 0.1em;
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--color-white);
    border-radius: 50px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.case-card:hover .case-card__view {
    background: var(--color-white);
    color: var(--color-black);
}

.case-card__content {
    padding: clamp(1.5rem, 3vw, 2rem);
    text-align: left;
}

.case-card__number {
    display: block;
    font-size: clamp(0.875rem, 1.8vw, 1rem);
    font-weight: 500;
    letter-spacing: 0.1em;
    color: #999;
    margin-bottom: clamp(0.5rem, 1vw, 0.75rem);
}

.case-card__title {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 500;
    line-height: 1.5;
    letter-spacing: 0.05em;
    color: var(--color-text);
}

.cases__cta {
    text-align: center;
}

.cases__all-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: clamp(0.875rem, 2vw, 1.125rem) clamp(2rem, 4vw, 3rem);
    background: transparent;
    color: var(--color-text);
    border: 2px solid var(--color-text);
    border-radius: 50px;
    font-size: clamp(0.875rem, 2vw, 1rem);
    font-weight: 500;
    letter-spacing: 0.1em;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.cases__all-link:hover {
    background: var(--color-text);
    color: var(--color-white);
    transform: translateX(0.5rem);
}

.cases__all-link svg {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.cases__all-link:hover svg {
    transform: translateX(0.25rem);
}

/* 旧スタイル（後方互換性のため保持） */
.case {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    align-items: center;
}

.case__image {
    overflow: hidden;
}

.case__image img {
    width: 100%;
    height: auto;
}

.case__content {
    padding: var(--spacing-sm);
    text-align: left;
}

.case__number {
    display: block;
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    color: #999;
    margin-bottom: var(--spacing-xs);
}

.case__title {
    font-size: clamp(1.75rem, 4.5vw, 2.75rem);
    font-weight: 500;
    line-height: 1.5;
    margin-bottom: var(--spacing-sm);
}

.case__text {
    font-size: clamp(1.125rem, 2.5vw, 1.25rem);
    line-height: 2;
    color: #666;
    font-weight: 300;
}

/* ===== css\sections\lifestyle.css ===== */
/* ========================================
   ⑧ 人生をデザインする
======================================== */

.lifestyle {
    background-color: var(--color-black);
    color: var(--color-white);
    text-align: center;
    padding: var(--spacing-xl) 0;
    overflow: hidden;
    min-height: auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
}

.lifestyle .container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    padding-top: var(--spacing-md);
    padding-bottom: var(--spacing-md);
}

.lifestyle .section__title {
    color: var(--color-white);
    margin-bottom: 1.5rem;
}

.lifestyle__lead {
    font-size: clamp(1.125rem, 2.5vw, 1.375rem);
    line-height: 2.2;
    max-width: 900px;
    margin: 0 auto 4rem;
    font-weight: 300;
}

.lifestyle__grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    margin: 0;
    padding: 0;
    will-change: transform;
}

.lifestyle__card {
    position: relative;
    overflow: hidden;
    background-color: #1a1a1a;
    min-height: 400px;
    width: 280px;
    flex-shrink: 0;
    display: flex;
    align-items: flex-end;
    cursor: default;
    will-change: transform, opacity;
}

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

.lifestyle__card-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.6;
}

.lifestyle__card-content {
    position: relative;
    z-index: 2;
    padding: var(--spacing-md);
    width: 100%;
    background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.4) 70%, transparent 100%);
}

.lifestyle__portrait {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto var(--spacing-sm);
    border: 3px solid var(--color-white);
}

.lifestyle__portrait img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.lifestyle__card-title {
    font-size: clamp(1.25rem, 3.5vw, 1.625rem);
    font-weight: 500;
    line-height: 1.6;
    color: var(--color-white);
    white-space: nowrap;
}

/* ===== css\sections\voice.css ===== */
/* ========================================
   ⑨ 選んだ理由 / Voice
======================================== */

.voice {
    background-color: var(--color-off-white);
    text-align: center;
}

.voice__lead {
    font-size: clamp(1.125rem, 2.5vw, 1.375rem);
    line-height: 2.2;
    max-width: 900px;
    margin: 0 auto var(--spacing-lg);
    font-weight: 300;
}

.voice__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: var(--spacing-lg);
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

.voice__item {
    padding: 0;
    background-color: var(--color-white);
    text-align: left;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    will-change: transform, opacity;
    display: flex;
    flex-direction: column;
}

.voice__item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.voice__age {
    font-size: clamp(1.125rem, 2.5vw, 1.375rem);
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 0.8rem;
    color: var(--color-black);
    padding-top: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--color-black);
}

.voice__image {
    width: 100%;
    height: 240px;
    overflow: hidden;
    margin-bottom: 0;
    position: relative;
}

.voice__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.voice__item:hover .voice__image img {
    transform: scale(1.05);
}

.voice__text {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    line-height: 1.8;
    color: #666;
    font-weight: 300;
    flex-grow: 1;
    padding: 0 0.2rem 1rem;
}

/* ===== css\sections\staff.css ===== */
/* ========================================
   Staff紹介セクション
======================================== */

.staff {
    background-color: var(--color-white);
    text-align: center;
}

.staff__lead {
    font-size: clamp(1.125rem, 2.5vw, 1.375rem);
    line-height: 2.2;
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    font-weight: 300;
}

.staff__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
    max-width: 860px;
    margin: 0 auto;
}

/* ── カード ── */
.staff__card {
    background-color: var(--color-off-white);
    text-align: left;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    will-change: transform, opacity;
}

.staff__card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.1);
}

/* ── 写真エリア ── */
.staff__card-image {
    width: 100%;
    aspect-ratio: 3 / 4;
    overflow: hidden;
    position: relative;
}

.staff__card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    transition: transform 0.4s ease;
    display: block;
}

.staff__card:hover .staff__card-image img {
    transform: scale(1.05);
}

/* ── テキストエリア ── */
.staff__card-content {
    padding: 1.5rem 1.75rem 2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.staff__card-role {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-white);
    background-color: var(--color-black);
    padding: 0.25rem 0.8rem;
    margin-bottom: 1rem;
    align-self: flex-start;
}

.staff__card-name {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--color-black);
    line-height: 1.3;
}

.staff__card-divider {
    width: 2rem;
    height: 2px;
    background-color: var(--color-black);
    margin: 1rem 0;
}

.staff__card-text {
    font-size: clamp(0.9375rem, 2vw, 1.0625rem);
    line-height: 1.9;
    color: #666;
    font-weight: 300;
    flex: 1;
}

/* 奇数枚目で最後のカードを中央に配置 */
.staff__card:last-child:nth-child(odd) {
    grid-column: 1 / -1;
    max-width: calc(50% - 1.5rem);
    justify-self: center;
}
/* ===== css\sections\steps.css ===== */
/* ========================================
   ⑩ 設計の始め方
======================================== */

.steps {
    background-color: var(--color-off-white);
    text-align: center;
}

.steps__grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--spacing-sm);
    align-items: stretch;
    margin-top: var(--spacing-lg);
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
}

.step-wrapper {
    position: relative;
    display: flex;
    will-change: transform, opacity;
}

.step__line {
    display: none;
}

.step {
    position: relative;
    width: 100%;
    height: 100%;
    padding: 2.2rem 2rem 1.8rem;
    background-color: var(--color-white);
    text-align: left;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
    border-radius: 8px;
    border: 1px solid #E5E7EB;
    min-height: 360px;
    display: flex;
    flex-direction: column;
}

.step-wrapper:hover .step {
    transform: translateY(-4px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
    border-color: #D1D5DB;
}

.step__number {
    position: absolute;
    top: 1.1rem;
    right: 1.2rem;
    font-size: clamp(1.35rem, 2vw, 1.85rem);
    font-weight: 600;
    color: #9CA3AF;
    letter-spacing: 0.06em;
}

.step__icon {
    width: 56px;
    height: 56px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-black);
    margin-bottom: 1.5rem;
}

.step__icon svg {
    stroke-width: 1.2;
}

.step__title {
    font-size: clamp(1.25rem, 2vw, 1.6rem);
    font-weight: 300;
    margin-bottom: 0.9rem;
    color: var(--color-black);
    line-height: 1.45;
}

.step__duration {
    font-size: 1rem;
    color: #666;
    margin-bottom: 1rem;
    font-weight: 400;
}

.step__text {
    font-size: clamp(1rem, 1.6vw, 1.1rem);
    line-height: 1.95;
    color: #555;
    font-weight: 300;
}

.step__more {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-top: auto;
    font-size: 1.05rem;
    font-weight: 400;
    color: var(--color-black);
    padding-top: 1.4rem;
    transition: opacity 0.3s ease;
}

.step__more:hover {
    opacity: 0.65;
}

/* Step cards – 3-column grid, sequential order (01→09) */

/* ===== css\sections\cta.css ===== */
/* ========================================
   ⑪ 最終CTA
======================================== */

.cta {
    background-image: url('imgfile/cta-bg.webp');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    text-align: center;
    padding: var(--spacing-xxl) 0;
    position: relative;
}

/* CTA背景画像のオーバーレイ */
.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.85);
    z-index: 1;
}

.cta .container {
    position: relative;
    z-index: 2;
}

.cta__title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-family: var(--font-sans);
    font-weight: 700;
    letter-spacing: 0.08em;
    line-height: 1.5;
    margin-bottom: var(--spacing-md);
}

/* ===== css\sections\event.css ===== */
/* ========================================
   イベントセクション（index.html 埋め込み用）
======================================== */

.event {
    background-color: var(--color-off-white);
    text-align: center;
}

.event__label {
    font-size: 0.7rem;
    letter-spacing: 0.45em;
    color: var(--color-text-light);
    text-transform: uppercase;
    display: block;
    margin-bottom: 1.2rem;
}

.event__lead {
    font-size: 1rem;
    color: var(--color-text-mid);
    line-height: 2;
    max-width: 540px;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-md);
    margin-left: auto;
    margin-right: auto;
}

/* ── イベントカードグリッド ── */
.event__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.4rem;
    text-align: left;
}

.event__grid--2col {
    grid-template-columns: repeat(2, 1fr);
}

.event-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background-color: var(--color-white);
    border: 1px solid var(--color-border-light);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.event-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.09);
}

/* 写真エリア */
.event-card__photo {
    aspect-ratio: 16 / 10;
    overflow: hidden;
    flex-shrink: 0;
}

.event-card__photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    transform: scale(1);
    transition: transform 0.6s ease;
}

.event-card:hover .event-card__photo img {
    transform: scale(1.05);
}

/* テキストエリア */
.event-card__body {
    padding: 2.2rem 2rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    flex: 1;
}

.event-card__type {
    font-size: 0.65rem;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    color: var(--color-text-light);
}

.event-card__title {
    font-size: 1.25rem;
    font-weight: 400;
    letter-spacing: 0.12em;
    line-height: 1.6;
}

.event-card__text {
    font-size: 0.9rem;
    color: var(--color-text-mid);
    line-height: 1.9;
    letter-spacing: 0.08em;
    flex: 1;
}

.event-card__badge {
    font-size: 0.7rem;
    letter-spacing: 0.25em;
    color: var(--color-text-light);
    border: 1px solid var(--color-border-light);
    display: inline-block;
    padding: 0.3rem 0.9rem;
    align-self: flex-start;
}

/* ── 直近イベント一覧 ── */
.event__upcoming {
    margin-top: var(--spacing-md);
    border-top: 1px solid #D8D8D8;
}

.event__upcoming-title {
    font-size: 0.7rem;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    color: var(--color-text-light);
    padding: 1.5rem 0 1rem;
}

.event-list-item {
    display: grid;
    grid-template-columns: auto auto 1fr auto;
    align-items: center;
    gap: 1.5rem;
    padding: 1.2rem 0;
    border-bottom: 1px solid #EBEBEB;
    transition: background-color 0.2s;
}

.event-list-item__date {
    font-size: 0.85rem;
    letter-spacing: 0.12em;
    color: var(--color-text-dark);
    white-space: nowrap;
    font-weight: 400;
    min-width: 7rem;
}

.event-list-item__tag {
    font-size: 0.65rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--color-white);
    background-color: var(--color-black);
    padding: 0.25rem 0.75rem;
    white-space: nowrap;
}

.event-list-item__name {
    font-size: 0.95rem;
    letter-spacing: 0.1em;
    color: var(--color-text-dark);
}

.event-list-item__place {
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    color: var(--color-text-light);
    white-space: nowrap;
}

/* ── CTAリンク ── */
.event__cta {
    margin-top: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.event__all-link {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.85rem;
    letter-spacing: 0.25em;
    color: var(--color-text-dark);
    border-bottom: 1px solid var(--color-text-dark);
    padding-bottom: 0.15rem;
    transition: opacity 0.3s;
}

.event__all-link:hover {
    opacity: 0.55;
}

.event__all-link svg {
    flex-shrink: 0;
}

/* ========================================
   レスポンシブ
======================================== */
@media (max-width: 1023px) {
    .event__grid,
    .event__grid--2col {
        grid-template-columns: 1fr;
        gap: 1.6rem;
    }
}

@media (max-width: 767px) {
    .event-list-item {
        grid-template-columns: 1fr auto;
        grid-template-rows: auto auto;
        gap: 0.4rem 1rem;
    }

    .event-list-item__date {
        grid-column: 1;
        grid-row: 1;
        font-size: 0.8rem;
    }

    .event-list-item__tag {
        grid-column: 2;
        grid-row: 1;
    }

    .event-list-item__name {
        grid-column: 1 / -1;
        grid-row: 2;
    }

    .event-list-item__place {
        grid-column: 1 / -1;
        grid-row: 3;
    }
}
/* ===== css\components\animations.css ===== */
/* ========================================
   アニメーション用クラス（GSAP用）
======================================== */

.js-fade-text,
.js-fade-btn,
.js-fade-diagram,
.js-fade-item,
.js-parallax-img {
    /* GSAPで制御するため、初期状態は不透明のまま */
    opacity: 1;
}
/* ===== css\responsive\up-768.css ===== */
/* ========================================
   レスポンシブ（タブレット以上 768px〜）
======================================== */

@media (min-width: 768px) {
    :root {
        --container-padding: 2.5rem;
        --spacing-xl: 8rem;
        --spacing-xxl: 10rem;
    }
    
    .case {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .case--reverse {
        direction: rtl;
    }
    
    .case--reverse .case__content {
        direction: ltr;
    }
    
    .case__content {
        padding: var(--spacing-sm);
    }
    
    .concept__diagram {
        flex-direction: row;
        gap: 6rem;
    }
}

/* ===== css\responsive\up-1024.css ===== */
/* ========================================
   レスポンシブ（デスクトップ 1024px〜）
======================================== */

@media (min-width: 1024px) {
    :root {
        --container-padding: 3rem;
        --spacing-xl: 10rem;
        --spacing-xxl: 14rem;
    }
    
    .question__text {
        max-width: 900px;
        margin: 0 auto;
    }
    
    .case {
        gap: var(--spacing-lg);
    }
    
    .case__content {
        padding: var(--spacing-md);
    }
    
    .concept__diagram {
        gap: 8rem;
    }
    
    .voice__grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 1.5rem;
        max-width: 1300px;
    }
    
    .voice__image {
        height: 200px;
    }
    
    .voice__item {
        padding: 0;
    }
    
    .voice__text {
        font-size: 0.9375rem;
        line-height: 1.7;
    }
    
    .voice__age {
        font-size: 1.0625rem;
        margin-bottom: 0.875rem;
        padding-bottom: 0.375rem;
    }
    
    .lifestyle__grid {
        flex-wrap: nowrap;
    }
    
    .lifestyle__card {
        width: 280px;
        min-height: 450px;
    }

    .lifestyle__card-content {
        text-align: center;
        padding: 1.5rem;
    }

    .lifestyle__card-title {
        text-align: center;
    }
}

/* ===== css\responsive\up-1440.css ===== */
/* ========================================
   レスポンシブ（大画面デスクトップ 1440px〜）
======================================== */

@media (min-width: 1440px) {
    .voice__grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 2rem;
        max-width: 1400px;
    }
    
    .voice__image {
        height: 220px;
    }
    
    .voice__item {
        padding: 0;
    }
    
    .voice__text {
        font-size: 1rem;
        line-height: 1.75;
    }
    
    .voice__age {
        font-size: 1.125rem;
        margin-bottom: 1rem;
    }
}

/* ===== css\responsive\up-1600.css ===== */
/* ========================================
   超大画面デスクトップ（1600px〜）
======================================== */

@media (min-width: 1600px) {
    .voice__grid {
        max-width: 1500px;
        gap: 2.5rem;
    }
    
    .voice__image {
        height: 220px;
    }
    
    .voice__item {
        padding: 1.75rem;
    }
    
    .lifestyle__card {
        min-height: 480px;
    }
    
    .platform__grid {
        gap: 1rem;
        max-width: 1250px;
    }
    
    .platform__icon-wrapper {
        width: 600px;
        height: 600px;
    }
}

/* ===== css\responsive\down-767.css ===== */
/* ========================================
   モバイル対応（〜767px）
======================================== */

@media (max-width: 767px) {
    :root {
        --container-padding: 1.25rem;
        --spacing-xs: 0.75rem;
        --spacing-sm: 1.5rem;
        --spacing-md: 2.5rem;
        --spacing-lg: 4rem;
        --spacing-xl: 5rem;
        --spacing-xxl: 6rem;
    }
    
    /* ベーススタイル */
    body {
        font-size: 16px;
    }
    
    * {
        max-width: 100%;
    }
    
    /* セクション共通 */
    .section {
        padding: var(--spacing-lg) 0;
        overflow: hidden;
    }
    
    .section__title {
        font-size: 1.85rem;
        margin-bottom: var(--spacing-sm);
        line-height: 1.5;
        white-space: nowrap;
        word-break: keep-all;
        overflow-wrap: normal;
    }

    .concept__title,
    .cta__title,
    .trinity__lead,
    .cases__lead {
        white-space: nowrap;
        word-break: keep-all;
        overflow-wrap: normal;
    }

    .trinity__lead,
    .cases__lead {
        font-size: 1rem;
    }
    
    /* ボタン */
    .btn {
        padding: 1rem 2.5rem;
        font-size: 1rem;
        min-height: 48px; /* タッチターゲットサイズを確保 */
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }
    
    .btn--large {
        padding: 1.2rem 3rem;
        font-size: 1.125rem;
        min-height: 52px;
    }
    
    /* 固定ヘッダーアクション（モバイル） */
    .header-actions {
        top: 1rem;
        right: 1rem;
        gap: 0.5rem;
    }

    /* 固定お問い合わせボタン（モバイル） */
    .btn-fixed-contact {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
        box-shadow: 0 3px 10px rgba(0, 0, 0, 0.15);
    }

    /* ハンバーガー（モバイル） */
    .hamburger {
        width: 38px;
        height: 38px;
    }
    
    /* ローディング画面（モバイル） */
    .loading-logo {
        width: clamp(80px, 20vw, 120px);
    }
    
    /* ① ヒーローセクション */
    .hero__logo {
        top: 1rem;
        left: 1rem;
        width: clamp(70px, 15vw, 100px);
    }
    
    .hero {
        background-attachment: scroll;
        min-height: 100vh;
        padding: 0 1rem;
    }
    
    .hero .container {
        align-items: flex-start;
        justify-content: center;
        padding-top: 45vh;
    }
    
    .hero__main-copy {
        font-size: clamp(1.05rem, 5.5vw, 1.6rem);
        letter-spacing: 0.08em;
        margin-bottom: 1.5rem;
        text-align: left;
    }

    .hero__copy-line {
        white-space: normal;
        word-break: normal;
        overflow-wrap: normal;
    }
    
    .hero__sub-copy {
        font-size: clamp(1.125rem, 4vw, 1.5rem);
        margin-bottom: 2.5rem;
        text-align: left;
    }
    
    .hero__scroll-indicator {
        margin-top: 1rem;
    }
    
    .hero__scroll-text {
        font-size: 0.7rem;
    }
    
    .hero__scroll-arrow {
        width: 20px;
        height: 20px;
    }
    
    /* ② 問いかけセクション */
    .question {
        background-attachment: scroll;
        padding: var(--spacing-lg) 1rem;
    }
    
    .question__text {
        font-size: clamp(1.5rem, 6vw, 2rem);
        padding: 0 1rem;
    }
    
    /* ③ コンセプトセクション */
    .concept .section__title {
        position: relative;
        top: auto;
        margin-bottom: 1.5rem;
    }
    
    .concept .section__subtitle {
        position: relative;
        top: auto;
        font-size: clamp(1rem, 3vw, 1.25rem);
        margin-bottom: 2rem;
    }
    
    .concept__diagram-wrapper {
        min-height: auto;
        padding: 2rem 0;
    }
    
    .concept__diagram {
        flex-direction: column;
        gap: 4rem;
        padding: 0 1rem;
    }
    
    .diagram__number {
        font-size: clamp(3.5rem, 10vw, 5rem);
        top: -1.5rem;
        left: -1rem;
    }
    
    .diagram__icon {
        width: 120px;
        height: 120px;
    }
    
    .diagram__label {
        font-size: clamp(1.75rem, 5.5vw, 2.25rem);
    }
    
    .concept__lead {
        font-size: clamp(1.125rem, 4vw, 1.375rem);
        line-height: 1.9;
        margin-bottom: var(--spacing-md);
    }
    
    /* ④ グローバルセクション */
    .global {
        background-attachment: scroll;
    }
    
    .global__lead {
        font-size: clamp(1rem, 3vw, 1.25rem);
        line-height: 2;
    }
    
    /* ⑤ パートナーセクション */
    .partner__lead {
        font-size: clamp(1rem, 3vw, 1.25rem);
        line-height: 1.9;
        margin-bottom: var(--spacing-md);
    }
    
    .partner__images {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    /* ⑥ プラットフォームセクション */
    .platform__grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-xl);
    }
    
    .platform__center-text {
        font-size: clamp(0.9375rem, 3vw, 1.125rem);
    }
    
    /* ⑦ ケーススタディ */
    .case {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
        margin-top: var(--spacing-md);
    }
    
    .case--reverse {
        direction: ltr;
    }
    
    .case__content {
        padding: var(--spacing-sm) 0;
    }
    
    .case__title {
        font-size: clamp(1.5rem, 5vw, 2rem);
        margin-bottom: 1rem;
    }
    
    .case__text {
        font-size: clamp(1rem, 3vw, 1.125rem);
        line-height: 1.9;
    }
    
    /* ⑧ ライフスタイルセクション */
    .lifestyle .container {
        height: auto;
        min-height: auto;
        padding-top: var(--spacing-md);
        padding-bottom: var(--spacing-md);
    }
    
    .lifestyle__lead {
        font-size: clamp(1rem, 3vw, 1.25rem);
        line-height: 2;
        margin-bottom: 2.5rem;
    }
    
    .lifestyle__lead br {
        display: none;
    }
    
    .lifestyle__grid {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: stretch;
    }
    
    .lifestyle__card {
        width: 100%;
        min-height: 140px;
        max-height: 160px;
    }
    
    .lifestyle__card-content {
        padding: 1rem;
        position: relative;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }
    
    .lifestyle__portrait {
        width: 50px;
        height: 50px;
        position: absolute;
        left: 1rem;
        bottom: 1rem;
        margin: 0;
        flex-shrink: 0;
    }
    
    .lifestyle__card-title {
        font-size: clamp(0.9rem, 4vw, 1.125rem);
        margin: 0;
        text-align: center;
        white-space: nowrap;
    }
    
    /* ⑨ ボイスセクション */
    .voice__lead {
        font-size: clamp(1rem, 3vw, 1.25rem);
        line-height: 2;
        margin-bottom: var(--spacing-md);
    }
    
    .voice__lead br {
        display: none;
    }
    
    .voice__grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
        margin-top: var(--spacing-md);
    }
    
    .voice__item {
        padding: var(--spacing-sm);
    }
    
    .voice__age {
        font-size: clamp(1.125rem, 3vw, 1.25rem);
        margin-bottom: 1rem;
    }
    
    .voice__image {
        height: 200px;
    }
    
    .voice__text {
        font-size: clamp(0.9375rem, 3vw, 1.125rem);
        line-height: 1.9;
    }
    
    /* Staff紹介セクション */
    .staff__lead {
        font-size: clamp(1rem, 3vw, 1.25rem);
        line-height: 2;
        margin-bottom: var(--spacing-md);
    }

    .staff__grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    /* 奇数最終カードのPC用中央配置をモバイルでリセット */
    .staff__card:last-child:nth-child(odd) {
        grid-column: auto;
        max-width: 100%;
        justify-self: stretch;
    }

    .staff__card-name {
        font-size: clamp(1.375rem, 5vw, 1.75rem);
    }

    /* ⑩ ステップセクション */
    .steps__grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        margin-top: var(--spacing-md);
    }
    
    .step {
        padding: 2rem 1.6rem 1.6rem;
        min-height: 330px;
    }
    
    .step__number {
        top: 0.9rem;
        right: 1rem;
        font-size: clamp(1.2rem, 4.6vw, 1.6rem);
    }
    
    .step__title {
        font-size: clamp(1.2rem, 4vw, 1.5rem);
        margin-bottom: 0.75rem;
    }

    /* Step connector lines – mobile 1-column: vertical lines for all non-last */
    .steps__grid .step-wrapper:not(:last-child)::after {
        content: "";
        position: absolute;
        bottom: -4rem;
        left: 50%;
        right: auto;
        top: auto;
        transform: translateX(-50%);
        width: 1px;
        height: 4rem;
        background-color: #C2C8D4;
        border: none;
        z-index: 1;
    }
    
    .step__duration {
        font-size: 0.95rem;
    }
    
    .step__text {
        font-size: clamp(0.95rem, 2.8vw, 1.05rem);
        line-height: 1.9;
    }

    .step__more {
        font-size: 1rem;
    }
    
    /* ⑪ CTAセクション */
    .cta {
        background-attachment: scroll;
        padding: var(--spacing-lg) 0;
    }
    
    .cta__title {
        font-size: 1.85rem;
        margin-bottom: 2rem;
    }
    
    /* フッター */
    .footer {
        padding: var(--spacing-md) 0 var(--spacing-sm);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .footer-info {
        text-align: center;
    }
    
    .footer-links {
        align-items: center;
        gap: 0.75rem;
    }
    
    .footer-links a {
        min-height: 44px;
        display: inline-flex;
        align-items: center;
    }
}

/* ===== css\responsive\tab-768-1023.css ===== */
/* ========================================
   タブレット対応（768px〜1023px）
======================================== */

@media (min-width: 768px) and (max-width: 1023px) {
    :root {
        --spacing-md: 3rem;
        --spacing-lg: 5rem;
    }
    
    .platform__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
        max-width: 750px;
    }
    
    .platform__icon-wrapper {
        width: 350px;
        height: 350px;
    }
    
    .voice__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .lifestyle__grid {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .lifestyle__card {
        width: calc(50% - 1rem);
        min-width: 250px;
        min-height: 200px;
    }
    
    .lifestyle__card-content {
        display: flex;
        flex-direction: row;
        align-items: center;
        gap: 1rem;
        padding: 1.25rem;
    }
    
    .lifestyle__portrait {
        width: 60px;
        height: 60px;
        margin-bottom: 0;
        flex-shrink: 0;
    }
    
    .lifestyle__card-title {
        font-size: clamp(1rem, 2.5vw, 1.25rem);
        margin: 0;
    }
    
    .concept__diagram {
        gap: 4rem;
    }
    
    .diagram__icon {
        width: 200px;
        height: 200px;
    }
    
    .steps__grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        max-width: 860px;
    }

    /* Snake配置: 行2・行4を反転 (03→04右から左, 07→08右から左) */
    .steps__grid .step-wrapper:nth-child(1) { order: 1; }
    .steps__grid .step-wrapper:nth-child(2) { order: 2; }
    .steps__grid .step-wrapper:nth-child(3) { order: 4; }
    .steps__grid .step-wrapper:nth-child(4) { order: 3; }
    .steps__grid .step-wrapper:nth-child(5) { order: 5; }
    .steps__grid .step-wrapper:nth-child(6) { order: 6; }
    .steps__grid .step-wrapper:nth-child(7) { order: 8; }
    .steps__grid .step-wrapper:nth-child(8) { order: 7; }
    .steps__grid .step-wrapper:nth-child(9) { order: 9; }

    /* 右横線: 01→02 (row1) and 05→06 (row3) */
    .steps__grid .step-wrapper:nth-child(1)::after,
    .steps__grid .step-wrapper:nth-child(5)::after {
        content: "";
        position: absolute;
        right: -2rem;
        top: 38%;
        width: 2rem;
        height: 1px;
        background-color: #C2C8D4;
        z-index: 1;
    }

    /* 縦線: 02←03, 04←05, 06←07, 08←09 */
    .steps__grid .step-wrapper:nth-child(2)::after,
    .steps__grid .step-wrapper:nth-child(4)::after,
    .steps__grid .step-wrapper:nth-child(6)::after,
    .steps__grid .step-wrapper:nth-child(8)::after {
        content: "";
        position: absolute;
        bottom: -2rem;
        left: 50%;
        transform: translateX(-50%);
        width: 1px;
        height: 2rem;
        background-color: #C2C8D4;
        z-index: 1;
    }

    /* 左横線: 03←04 (row2) and 07←08 (row4) */
    .steps__grid .step-wrapper:nth-child(3)::after,
    .steps__grid .step-wrapper:nth-child(7)::after {
        content: "";
        position: absolute;
        left: -2rem;
        top: 38%;
        width: 2rem;
        height: 1px;
        background-color: #C2C8D4;
        z-index: 1;
    }
}

/* ===== css\responsive\tab-600-767.css ===== */
/* ========================================
   小型タブレット（600px〜767px）
======================================== */

@media (min-width: 600px) and (max-width: 767px) {
    .voice__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .lifestyle__card {
        width: calc(50% - 0.75rem);
        min-height: 160px;
        max-height: 190px;
    }
    
    .lifestyle__card-content {
        display: flex;
        flex-direction: row;
        align-items: center;
        gap: 1rem;
        padding: 1rem;
    }
    
    .lifestyle__portrait {
        width: 50px;
        height: 50px;
        margin-bottom: 0;
        flex-shrink: 0;
    }
    
    .lifestyle__card-title {
        font-size: clamp(0.95rem, 2.5vw, 1.125rem);
        margin: 0;
    }
    
    .lifestyle__grid {
        flex-wrap: wrap;
    }
    
    .diagram__icon {
        width: 160px;
        height: 160px;
    }
}

/* ===== css\responsive\touch.css ===== */
/* ========================================
   タッチデバイス対応
======================================== */

@media (hover: none) and (pointer: coarse) {
    .btn:hover,
    .platform__item:hover,
    .voice__item:hover,
    .partner__image:hover img,
    .voice__item:hover .voice__image img {
        transform: none;
        box-shadow: none;
    }
    
    /* タッチデバイスでのタップ時の効果 */
    .btn:active {
        background-color: var(--color-black);
        color: var(--color-white);
        transform: scale(0.98);
    }
    
    .platform__item:active,
    .voice__item:active {
        transform: translateY(-3px);
    }
}

/* ===== css\layout\footer.css ===== */
/* ========================================
   フッター
======================================== */

.footer {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid #333;
}

.footer-info {
    text-align: left;
}

.footer-title {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    font-weight: 500;
    margin-bottom: 1rem;
    letter-spacing: 0.05em;
}

.footer-company {
    font-size: clamp(1rem, 2.5vw, 1.125rem);
    font-weight: 400;
    margin-bottom: 1rem;
}

.footer-address,
.footer-tel,
.footer-hours {
    font-size: clamp(0.875rem, 2vw, 1rem);
    color: #CCCCCC;
    line-height: 1.8;
    margin-bottom: 0.5rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
}

.footer-links a {
    font-size: clamp(0.875rem, 2vw, 1rem);
    color: var(--color-white);
    text-decoration: none;
    transition: opacity 0.3s ease;
    border-bottom: 1px solid transparent;
    padding-bottom: 0.25rem;
}

.footer-links a:hover {
    opacity: 0.7;
    border-bottom-color: var(--color-white);
}

.footer-copyright {
    text-align: center;
    font-size: clamp(0.75rem, 1.5vw, 0.875rem);
    color: #999;
    letter-spacing: 0.05em;
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .footer-links {
        align-items: center;
    }
    
    .footer-info {
        text-align: center;
    }
    
    /* ⑥ プラットフォームセクション（スマートフォン） */
    .platform__grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .platform__item:nth-child(1) {
        grid-column: 1;
    }
    
    .platform__item {
        padding: var(--spacing-sm);
    }
    
    .platform__icon-wrapper {
        width: 280px;
        height: 280px;
    }
}