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

/* スマホ専用表示 */
.sp-only {
    display: none;
}

@media screen and (max-width: 600px) {
    .sp-only {
        display: inline;
    }
}

/* レスポンシブ専用改行（768px以下） */
.br-sp {
    display: none;
}

@media screen and (max-width: 768px) {
    .br-sp {
        display: inline;
    }
}

:root {
    /* ピンク&ベージュのカラーパレット（PDF資料に合わせた配色） */
    --color-pink: #f5c6c6;
    --color-pink-light: #fce4e4;
    --color-pink-dark: #d4a0a0;
    --color-beige: #c9a87c;
    --color-beige-light: #e8dfd2;
    --color-beige-dark: #b38b4a;
    --color-cream: #faf8f4;
    --color-white: #ffffff;
    --color-black: #2a2421;
    --color-gray: #6b6560;
    --color-gray-light: #a39c96;

    /* グラデーション */
    --gradient-pink: linear-gradient(135deg, #f5c6c6 0%, #fce4e4 100%);
    --gradient-beige: linear-gradient(180deg, #faf8f4 0%, #f5f0e8 100%);

    /* タイポグラフィ */
    --font-varela-round: 'Varela Round', sans-serif;
    --font-yu-gothic: '游ゴシック体', 'Yu Gothic', 'YuGothic', 'ヒラギノ角ゴ Pro', 'Hiragino Kaku Gothic Pro', 'メイリオ', 'Meiryo', sans-serif;
    --font-shippori-mincho: 'Shippori Mincho', serif;
    --font-cormorant: 'Cormorant Garamond', serif;
    --font-heading: var(--font-varela-round);
    --font-body: var(--font-yu-gothic);

    /* スペーシング */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* トランジション */
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    color: var(--color-black);
    background-color: var(--color-cream);
    line-height: 1.7;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

/* 見出し共通スタイル - Varela Round */
h1, h2, h3, h4, h5, h6,
.section-title,
.hero-title,
.concept-title-main,
.highlight-brand {
    font-family: var(--font-heading);
    font-weight: 700;
}

/* ==========================================
   スクロール進行度バー
   ========================================== */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-pink) 0%, var(--color-beige) 100%);
    z-index: 9999;
    transition: width 0.1s ease;
}

/* ==========================================
   ヘッダー
   ========================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(201, 168, 124, 0.1);
    z-index: 1000;
    transition: var(--transition);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo-link {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0.8rem;
    text-decoration: none;
}

.logo h1 {
    font-family: var(--font-accent);
    font-size: 1.8rem;
    font-weight: 500;
    color: var(--color-beige);
    letter-spacing: 2px;
}

.logo-image {
    height: 60px;
    width: auto;
    display: block;
}

.nav-list {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-list a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-black);
    position: relative;
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-pink) 0%, var(--color-beige) 100%);
    transition: width 0.3s ease;
}

.nav-list a:hover::after {
    width: 100%;
}

/* デスクトップ時はLINE公式アカウントを非表示 */
.nav-list li:last-child {
    display: none;
}

.nav-line-link {
    color: #06C755 !important;
    font-weight: 600 !important;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-line-link::after {
    background: #06C755 !important;
}

.nav-line-icon {
    display: none;
}

/* ==========================================
   モバイルナビゲーション強化スタイル
   ========================================== */
@media screen and (max-width: 1024px) {
    .nav {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: linear-gradient(
            135deg,
            rgba(245, 198, 198, 0.97) 0%,
            rgba(252, 228, 228, 0.95) 30%,
            rgba(250, 248, 244, 0.98) 60%,
            rgba(201, 168, 124, 0.15) 100%
        );
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        padding: 2rem;
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 999;
        overflow: hidden;
    }

    .nav::before {
        content: '';
        position: absolute;
        top: -50%;
        left: -50%;
        width: 200%;
        height: 200%;
        background: radial-gradient(
            ellipse at 30% 20%,
            rgba(245, 198, 198, 0.4) 0%,
            transparent 50%
        ),
        radial-gradient(
            ellipse at 70% 80%,
            rgba(201, 168, 124, 0.3) 0%,
            transparent 50%
        );
        animation: navBackgroundFloat 15s ease-in-out infinite;
        pointer-events: none;
    }

    @keyframes navBackgroundFloat {
        0%, 100% { transform: translate(0, 0) rotate(0deg); }
        33% { transform: translate(2%, 2%) rotate(1deg); }
        66% { transform: translate(-1%, 1%) rotate(-0.5deg); }
    }

    .nav.active {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
    }

    .nav-list {
        flex-direction: column;
        gap: 0;
        align-items: center;
        position: relative;
        z-index: 1;
    }

    .nav-list li {
        opacity: 0;
        transform: translateY(30px);
    }

    .nav.active .nav-list li {
        opacity: 1;
        transform: translateY(0);
        transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1), transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .nav.active .nav-list li:nth-child(1) { transition-delay: 0.1s; }
    .nav.active .nav-list li:nth-child(2) { transition-delay: 0.15s; }
    .nav.active .nav-list li:nth-child(3) { transition-delay: 0.2s; }
    .nav.active .nav-list li:nth-child(4) { transition-delay: 0.25s; }
    .nav.active .nav-list li:nth-child(5) { transition-delay: 0.3s; }
    .nav.active .nav-list li:nth-child(6) { transition-delay: 0.35s; }
    .nav.active .nav-list li:nth-child(7) { transition-delay: 0.4s; }
    .nav.active .nav-list li:nth-child(8) { transition-delay: 0.45s; }

    .nav-list a {
        font-family: var(--font-shippori-mincho);
        font-size: 1.4rem;
        font-weight: 500;
        color: var(--color-black);
        display: block;
        padding: 1rem 2.5rem;
        position: relative;
        letter-spacing: 0.15em;
        transition: all 0.3s ease;
    }

    .nav-list a::before {
        content: '';
        position: absolute;
        left: 0;
        top: 50%;
        transform: translateY(-50%) scaleX(0);
        width: 20px;
        height: 1px;
        background: linear-gradient(90deg, var(--color-beige), transparent);
        transition: transform 0.3s ease;
        transform-origin: left;
    }

    .nav-list a::after {
        display: none;
    }

    .nav-list a:hover {
        color: var(--color-beige-dark);
        transform: translateX(10px);
    }

    .nav-list a:hover::before {
        transform: translateY(-50%) scaleX(1);
    }

    /* LINE公式アカウント - 特別デザイン（モバイル時のみ表示） */
    .nav-list li:last-child {
        display: flex !important;
        margin-top: 2rem;
        padding-top: 2rem;
        border-top: 1px solid rgba(201, 168, 124, 0.3);
        width: 100%;
        justify-content: center;
    }

    .nav-line-link {
        font-family: var(--font-yu-gothic) !important;
        font-size: 1rem !important;
        font-weight: 600 !important;
        color: #ffffff !important;
        background: linear-gradient(135deg, #06C755 0%, #04a647 100%);
        padding: 1rem 2.5rem !important;
        border-radius: 50px;
        display: inline-flex !important;
        align-items: center;
        gap: 0.75rem;
        box-shadow:
            0 4px 15px rgba(6, 199, 85, 0.3),
            0 0 0 0 rgba(6, 199, 85, 0.4);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
        position: relative;
        overflow: hidden;
        letter-spacing: 0.05em !important;
    }

    .nav-line-link::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(
            90deg,
            transparent,
            rgba(255, 255, 255, 0.3),
            transparent
        );
        transition: left 0.5s ease;
    }

    .nav-line-link:hover {
        transform: translateY(-3px) scale(1.02) !important;
        box-shadow:
            0 8px 25px rgba(6, 199, 85, 0.4),
            0 0 0 4px rgba(6, 199, 85, 0.15);
        color: #ffffff !important;
    }

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

    .nav-line-link::after {
        display: none !important;
    }

    .nav-line-icon {
        display: block;
        flex-shrink: 0;
        filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.1));
    }

    /* ハンバーガーボタン強化 */
    .hamburger {
        display: flex !important;
        width: 44px;
        height: 44px;
        justify-content: center;
        align-items: center;
        background: rgba(255, 255, 255, 0.9);
        border-radius: 12px;
        box-shadow: 0 2px 10px rgba(201, 168, 124, 0.15);
        transition: all 0.3s ease;
        z-index: 1001;
    }

    .hamburger:hover {
        background: rgba(255, 255, 255, 1);
        box-shadow: 0 4px 20px rgba(201, 168, 124, 0.25);
    }

    .hamburger span {
        width: 22px !important;
        height: 2px !important;
        background: linear-gradient(90deg, var(--color-pink-dark), var(--color-beige)) !important;
        border-radius: 2px;
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1) !important;
        position: absolute !important;
    }

    .hamburger span:nth-child(1) {
        transform: translateY(-7px) !important;
    }

    .hamburger span:nth-child(2) {
        transform: translateY(0) !important;
    }

    .hamburger span:nth-child(3) {
        transform: translateY(7px) !important;
    }

    .hamburger.active {
        background: transparent !important;
        box-shadow: none !important;
    }

    .hamburger.active span {
        background: var(--color-beige-dark) !important;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translateY(0) !important;
    }

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

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translateY(0) !important;
    }

    /* クローズ時のアニメーション */
    .nav:not(.active) .nav-list li {
        transition-delay: 0s !important;
    }

    /* リサイズ時のアニメーション無効化 */
    .nav.no-transition,
    .nav.no-transition .nav-list li,
    .nav.no-transition .nav-list a,
    .nav.no-transition::before {
        transition: none !important;
        animation: none !important;
    }
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--color-beige);
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ==========================================
   ヒーローセクション
   ========================================== */
.hero {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
}

.hero-bg-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.2) 0%,
        rgba(0, 0, 0, 0.05) 40%,
        rgba(0, 0, 0, 0.25) 100%
    );
    z-index: 1;
}

/* 泡アニメーション */
.bubbles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    overflow: hidden;
    pointer-events: none;
}

.bubble {
    position: absolute;
    bottom: -40px;
    background: radial-gradient(
        circle at 30% 30%,
        rgba(255, 255, 255, 0.6) 0%,
        rgba(255, 255, 255, 0.25) 40%,
        rgba(255, 255, 255, 0.08) 60%,
        transparent 100%
    );
    border-radius: 50%;
    animation: bubbleRise linear infinite;
    opacity: 0;
}

.bubble::before {
    content: '';
    position: absolute;
    top: 12%;
    left: 18%;
    width: 18%;
    height: 18%;
    background: rgba(255, 255, 255, 0.4);
    border-radius: 50%;
}

.bubble:nth-child(1) {
    width: 35px;
    height: 35px;
    left: 5%;
    animation-duration: 8s;
    animation-delay: 0s;
}

.bubble:nth-child(2) {
    width: 20px;
    height: 20px;
    left: 15%;
    animation-duration: 9s;
    animation-delay: 1.5s;
}

.bubble:nth-child(3) {
    width: 45px;
    height: 45px;
    left: 28%;
    animation-duration: 10s;
    animation-delay: 0.8s;
}

.bubble:nth-child(4) {
    width: 25px;
    height: 25px;
    left: 42%;
    animation-duration: 11s;
    animation-delay: 2.5s;
}

.bubble:nth-child(5) {
    width: 30px;
    height: 30px;
    left: 58%;
    animation-duration: 8s;
    animation-delay: 1s;
}

.bubble:nth-child(6) {
    width: 22px;
    height: 22px;
    left: 72%;
    animation-duration: 9s;
    animation-delay: 3s;
}

.bubble:nth-child(7) {
    width: 38px;
    height: 38px;
    left: 85%;
    animation-duration: 10s;
    animation-delay: 0.5s;
}

.bubble:nth-child(8) {
    width: 18px;
    height: 18px;
    left: 95%;
    animation-duration: 7s;
    animation-delay: 2s;
}

@keyframes bubbleRise {
    0% {
        transform: translateY(0) translateX(0) scale(0.5);
        opacity: 0;
    }
    10% {
        opacity: 0.6;
    }
    90% {
        opacity: 0.2;
    }
    100% {
        transform: translateY(-110vh) translateX(20px) scale(1);
        opacity: 0;
    }
}

/* テキストコンテンツ */
.hero-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 3;
    text-align: center;
    width: 90%;
    max-width: 700px;
}

.hero-text-wrapper {
    --scale-factor: min(1, calc(100vw / 500px));
    transform: scale(var(--scale-factor));
    transform-origin: center center;
}

.hero-label {
    font-family: var(--font-cormorant);
    font-size: 1rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    letter-spacing: 0.35em;
    text-transform: uppercase;
    margin-bottom: 2rem;
    white-space: nowrap;
}

.hero-title {
    font-family: var(--font-shippori-mincho);
    font-size: 2.2rem;
    font-weight: 500;
    color: var(--color-white);
    line-height: 1.9;
    letter-spacing: 0.1em;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.25);
    white-space: nowrap;
}

/* スクロールインジケーター */
.scroll-indicator {
    position: absolute;
    bottom: 2.5rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
}

.scroll-indicator span {
    font-family: var(--font-cormorant);
    font-size: 0.65rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 0.2em;
    writing-mode: vertical-rl;
    position: relative;
    padding-bottom: 50px;
}

.scroll-indicator span::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.5);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% {
        opacity: 0.3;
        transform: translateX(-50%) scaleY(0.6);
    }
    50% {
        opacity: 0.8;
        transform: translateX(-50%) scaleY(1);
    }
}

/* ==========================================
   イントロセクション
   ========================================== */
.intro {
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, var(--color-pink-light) 0%, var(--color-cream) 30%, var(--color-cream) 100%);
    padding-bottom: 4rem;
}

/* 背景アニメーション（セクション全体） */
.intro-bg-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

/* 泡（イントロ用） */
.intro-bubble {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%,
        rgba(255, 255, 255, 0.6) 0%,
        rgba(245, 198, 198, 0.3) 40%,
        transparent 70%);
    border: 1px solid rgba(245, 198, 198, 0.25);
    animation: introFloat ease-in-out infinite;
}

.intro-bubble::before {
    content: '';
    position: absolute;
    top: 15%;
    left: 20%;
    width: 20%;
    height: 20%;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
}

.intro-bubble.ib1 { width: 60px; height: 60px; left: 8%; top: 15%; animation-duration: 12s; }
.intro-bubble.ib2 { width: 40px; height: 40px; left: 75%; top: 25%; animation-duration: 10s; animation-delay: -3s; }
.intro-bubble.ib3 { width: 30px; height: 30px; left: 20%; top: 60%; animation-duration: 14s; animation-delay: -6s; }
.intro-bubble.ib4 { width: 50px; height: 50px; right: 10%; top: 70%; animation-duration: 11s; animation-delay: -4s; }

@keyframes introFloat {
    0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.5; }
    50% { transform: translate(15px, -25px) scale(1.08); opacity: 0.75; }
}

/* 水滴（イントロ用） */
.intro-drop {
    position: absolute;
    width: 8px;
    height: 12px;
    background: linear-gradient(180deg,
        rgba(245, 198, 198, 0.6) 0%,
        rgba(201, 168, 124, 0.3) 100%);
    border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
    animation: introDrop linear infinite;
    opacity: 0;
}

.intro-drop::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 3px;
    height: 4px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
}

.intro-drop.id1 { left: 15%; animation-duration: 6s; }
.intro-drop.id2 { left: 50%; animation-duration: 7s; animation-delay: 2s; }
.intro-drop.id3 { left: 85%; animation-duration: 5s; animation-delay: 4s; }

@keyframes introDrop {
    0% { top: -20px; opacity: 0; }
    10% { opacity: 0.7; }
    90% { opacity: 0.4; }
    100% { top: 100%; opacity: 0; }
}

/* ===== オーバーラップブロック（第1）- 画像上にテキスト ===== */
.intro-overlap-block {
    position: relative;
    z-index: 1;
    padding: 4rem 0;
    max-width: 1200px;
    margin: 0 auto;
}

/* 画像ベース - 右側に余白を確保 */
.intro-image-base {
    position: relative;
    width: 80%;
    margin-left: auto;
    margin-right: 0;
}

.intro-image-wrapper {
    width: 100%;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.15);
}

.intro-image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #e8e0d8 0%, #d8cec4 50%, #c8beb4 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.intro-image-placeholder span {
    font-family: var(--font-cormorant);
    font-size: 1.4rem;
    color: var(--color-beige-dark);
    letter-spacing: 0.4em;
    text-transform: uppercase;
    opacity: 0.4;
}

.intro-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ===== 画像の左から右へ表示アニメーション ===== */
.intro-image-wrapper.wave-reveal {
    position: relative;
    overflow: hidden;
}

.intro-image-wrapper.wave-reveal img {
    opacity: 0;
    clip-path: inset(0 100% 0 0);
}

.intro-image-wrapper.wave-reveal.animate img {
    animation: revealImageLeftToRight 2s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

@keyframes revealImageLeftToRight {
    0% {
        opacity: 1;
        clip-path: inset(0 100% 0 0);
    }
    100% {
        opacity: 1;
        clip-path: inset(0 0 0 0);
    }
}

/* テキストオーバーレイ - 画像の上に配置（左寄せ） */
.intro-text-overlay {
    position: absolute;
    left: 5%;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

/* スケーリング用ラッパー */
.intro-text-scale-wrapper {
    --intro-scale: 1;
    transform: scale(var(--intro-scale));
    transform-origin: left center;
}

.intro-text-scale-wrapper .concept-title-line {
    white-space: nowrap;
}

/* 各行のコンテナ - 透明背景 */
.concept-title-line {
    position: relative;
    padding: 0.5rem 0;
}

/* メインテキスト */
.concept-title-main {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-black);
    letter-spacing: 0.08em;
    line-height: 1.6;
    text-shadow: 0 2px 10px rgba(255, 255, 255, 0.8);
}

/* アニメーションテキスト - 非表示 */
.concept-title-anim {
    display: none;
}

/* highlight-brand スタイル */
.highlight-brand {
    font-family: var(--font-heading);
    font-size: 1.9rem;
    font-weight: 700;
    color: var(--color-pink);
    letter-spacing: 0.1em;
}

/* ===== 一文字ずつ表示するアニメーション ===== */
.typing-text {
    opacity: 0;
    display: inline-block;
}

.typing-text.typed {
    opacity: 1;
}

.typing-char {
    display: inline-block;
    opacity: 0;
    transform: translateY(20px) translateX(-10px);
    animation: charWaveIn 0.5s cubic-bezier(0.23, 1, 0.32, 1) forwards;
}

.typing-char.highlight-brand-char {
    color: var(--color-beige);
    font-size: 1.9rem;
    font-weight: 700;
}

@keyframes charWaveIn {
    0% {
        opacity: 0;
        transform: translateY(25px) translateX(-15px) rotate(-5deg);
    }
    40% {
        opacity: 0.8;
        transform: translateY(-5px) translateX(3px) rotate(2deg);
    }
    70% {
        transform: translateY(3px) translateX(-1px) rotate(-1deg);
    }
    100% {
        opacity: 1;
        transform: translateY(0) translateX(0) rotate(0);
    }
}

/* ===== テキストのみブロック（第2） ===== */
.intro-text-block {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: auto;
    padding: 5rem var(--spacing-md);
    z-index: 1;
    overflow: hidden;
    width: 100%;
    box-sizing: border-box;
}

.intro-text-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
    --intro-group-scale: 1;
    transform: scale(var(--intro-group-scale));
    transform-origin: center center;
}

.intro-text-group.line-by-line-reveal .reveal-line {
    display: block;
    font-family: var(--font-shippori-mincho);
    font-size: 1.4rem;
    font-weight: 400;
    color: var(--color-black);
    line-height: 2;
    letter-spacing: 0.06em;
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
    white-space: nowrap;
}

.intro-text-group.line-by-line-reveal .reveal-line.spacer {
    height: 1.5rem;
}

.intro-text-group.line-by-line-reveal.animate .reveal-line {
    animation: lineReveal 0.8s cubic-bezier(0.23, 1, 0.32, 1) forwards;
}

.intro-text-group.line-by-line-reveal.animate .reveal-line:nth-child(1) { animation-delay: 0.1s; }
.intro-text-group.line-by-line-reveal.animate .reveal-line:nth-child(2) { animation-delay: 0.3s; }
.intro-text-group.line-by-line-reveal.animate .reveal-line:nth-child(3) { animation-delay: 0.5s; }
.intro-text-group.line-by-line-reveal.animate .reveal-line:nth-child(4) { animation-delay: 0.7s; }
.intro-text-group.line-by-line-reveal.animate .reveal-line:nth-child(5) { animation-delay: 0.9s; }
.intro-text-group.line-by-line-reveal.animate .reveal-line:nth-child(6) { animation-delay: 1.1s; }

@keyframes lineReveal {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.intro-text-center {
    font-family: var(--font-shippori-mincho);
    font-size: 1.4rem;
    font-weight: 400;
    color: var(--color-black);
    line-height: 2.4;
    letter-spacing: 0.06em;
    text-align: center;
}

/* ===== 動画ブロック（第3） ===== */
.intro-video-block {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 5rem var(--spacing-md) 6rem;
    z-index: 1;
    width: 100%;
    box-sizing: border-box;
}

.intro-video-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 900px;
}

.intro-video-label-wrapper {
    --video-label-scale: 1;
    display: flex;
    transform: scale(var(--video-label-scale));
    justify-content: center;
    margin-bottom: 2.5rem;
}

.intro-video-label {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.intro-video-dot {
    width: 10px;
    height: 10px;
    background: var(--color-beige-dark);
    border-radius: 50%;
}

.intro-video-label-text {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 0.25em;
    color: var(--color-beige-dark);
}

.intro-video-wrapper {
    width: 100%;
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(201, 168, 124, 0.15);
    background: var(--color-black);
}

/* ===== Intro Main Video ===== */
.intro-main-video {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    border-radius: 18px;
    overflow: hidden;
    box-shadow:
        0 30px 80px rgba(201, 168, 124, 0.2),
        0 0 0 1px rgba(201, 168, 124, 0.1);
    background: #000;
}

.intro-main-video video {
    width: 100%;
    height: auto;
    display: block;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

@media screen and (max-width: 768px) {
    .intro-main-video {
        border-radius: 14px;
        max-width: 100%;
    }
}

/* ===== Branding Videos Section ===== */
.branding-videos {
    padding: 100px 0;
    background: linear-gradient(
        180deg,
        rgba(255, 255, 255, 0) 0%,
        rgba(250, 247, 243, 0.6) 20%,
        rgba(250, 247, 243, 0.8) 50%,
        rgba(250, 247, 243, 0.6) 80%,
        rgba(255, 255, 255, 0) 100%
    );
    position: relative;
    overflow: hidden;
}

/* 装飾的な背景要素 */
.branding-videos::before {
    content: '';
    position: absolute;
    top: -100px;
    left: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(201, 168, 124, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.branding-videos::after {
    content: '';
    position: absolute;
    bottom: -150px;
    right: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(201, 168, 124, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.branding-videos-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    position: relative;
    z-index: 1;
}

/* ヘッダー部分 */
.branding-videos-header {
    text-align: center;
    margin-bottom: 60px;
}

.branding-title-wrapper {
    --branding-scale: 1;
    display: flex;
    transform: scale(var(--branding-scale));
    justify-content: center;
}

.branding-title-single {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.8rem;
    font-weight: 400;
    letter-spacing: 0.35em;
    color: var(--color-beige-dark);
    margin: 0;
    white-space: nowrap;
}


/* 動画グリッド */
.branding-videos-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 700px;
    margin: 0 auto;
}

.branding-video-card {
    position: relative;
}

.branding-video-frame {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    background: linear-gradient(
        145deg,
        rgba(0, 0, 0, 0.9),
        rgba(30, 25, 20, 0.95)
    );
    box-shadow:
        0 25px 60px rgba(0, 0, 0, 0.15),
        0 10px 30px rgba(201, 168, 124, 0.1),
        inset 0 0 0 1px rgba(201, 168, 124, 0.15);
    transition: all 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.branding-video-frame::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 20px;
    padding: 2px;
    background: linear-gradient(
        145deg,
        rgba(201, 168, 124, 0.3),
        rgba(201, 168, 124, 0.05),
        rgba(201, 168, 124, 0.2)
    );
    -webkit-mask:
        linear-gradient(#fff 0 0) content-box,
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.branding-video-card:hover .branding-video-frame {
    transform: translateY(-8px);
    box-shadow:
        0 35px 80px rgba(0, 0, 0, 0.2),
        0 15px 40px rgba(201, 168, 124, 0.15),
        inset 0 0 0 1px rgba(201, 168, 124, 0.25);
}

.branding-video-card:hover .branding-video-frame::before {
    opacity: 1;
}

.branding-video-frame video {
    width: 100%;
    height: auto;
    display: block;
    aspect-ratio: 9 / 16;
    object-fit: cover;
    object-position: center center;
    border-radius: 18px;
}

/* レスポンシブ */
@media screen and (max-width: 900px) {
    .branding-videos {
        padding: 80px 0;
    }

    .branding-videos-inner {
        padding: 0 30px;
    }

    .branding-videos-grid {
        gap: 30px;
        max-width: 600px;
    }

    .branding-video-frame {
        border-radius: 16px;
    }

    .branding-video-frame video {
        border-radius: 14px;
    }
}

@media screen and (max-width: 768px) {
    .branding-title-wrapper {
        --branding-scale: min(1, calc((100vw - 40px) / 380px));
    }
}

@media screen and (max-width: 600px) {
    .branding-videos {
        padding: 60px 0;
    }

    .branding-videos-inner {
        padding: 0 20px;
    }

    .branding-videos-header {
        margin-bottom: 40px;
    }

    .branding-videos-grid {
        gap: 20px;
        max-width: 100%;
    }

    .branding-video-frame {
        border-radius: 14px;
    }

    .branding-video-frame video {
        border-radius: 12px;
    }
}

@media screen and (max-width: 480px) {
    .branding-videos-grid {
        gap: 16px;
    }

    .branding-video-frame {
        border-radius: 12px;
    }

    .branding-video-frame video {
        border-radius: 10px;
    }
}

/* ==========================================
   イントロ レスポンシブ
   ========================================== */
@media screen and (max-width: 1200px) {
    .intro-text-center {
        font-size: 1.3rem;
    }

    .concept-title-main {
        font-size: 1.35rem;
    }

    .highlight-brand {
        font-size: 1.7rem;
    }
}

@media screen and (max-width: 1024px) {
    .intro-text-block {
        padding: 4rem var(--spacing-md);
    }

    .intro-video-block {
        padding: 4rem var(--spacing-md) 5rem;
    }

    .intro-overlap-block {
        padding: 3rem var(--spacing-md);
    }

    .intro-image-base {
        width: 70%;
        margin-right: 5%;
    }

    .concept-title-main {
        font-size: 1.25rem;
    }

    .concept-title-line {
        padding: 0.4rem 0;
    }

    .intro-text-center {
        font-size: 1.2rem;
    }

    .highlight-brand {
        font-size: 1.5rem;
    }

    .intro-bubble.ib4 {
        display: none;
    }
}

@media screen and (max-width: 768px) {
    .intro {
        background: linear-gradient(180deg, var(--color-pink-light) 0%, var(--color-cream) 40%, var(--color-cream) 100%);
    }

    /* 第1ブロックと第2ブロックの間隔を固定 */
    .intro-text-block {
        padding: 0.5rem var(--spacing-md) 2rem;
        justify-content: flex-start;
        overflow: hidden;
    }

    /* 第3ブロック：動画セクション */
    .intro-video-block {
        padding: 3rem var(--spacing-md) 4rem;
    }

    .intro-video-content {
        max-width: 100%;
    }

    .intro-video-label-wrapper {
        --video-label-scale: min(1, calc((100vw - 40px) / 280px));
        margin-bottom: 2rem;
    }

    /* 第2ブロック：スケーリングで改行を防ぐ */
    .intro-text-group {
        gap: 0.5rem;
        align-items: flex-start;
        --intro-group-scale: min(1, calc((100vw - 3rem) / 320px));
        transform: scale(var(--intro-group-scale));
        transform-origin: left top;
    }

    .intro-text-group.line-by-line-reveal .reveal-line {
        text-align: left;
        font-size: 1.1rem;
        white-space: nowrap;
    }

    .intro-text-center {
        font-size: 1.1rem;
        line-height: 2.2;
        text-align: left;
    }

    .intro-overlap-block {
        padding: 2rem var(--spacing-md) 0;
        display: flex;
        flex-direction: column;
        overflow: hidden;
    }

    .intro-image-base {
        width: 100%;
        margin-left: 0;
        margin-right: 0;
        position: relative;
    }

    /* 第1ブロック：スケーリングで改行を防ぐ */
    .intro-text-overlay {
        position: relative;
        left: 0;
        top: auto;
        margin-top: 2rem;
        margin-left: 0;
        margin-right: 0;
        gap: 0.2rem;
        text-align: left;
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        --intro-scale: min(1, calc((100vw - 3rem) / 300px));
        transform: scale(var(--intro-scale));
        transform-origin: left top;
    }

    .concept-title-line {
        padding: 0.2rem 0;
        white-space: nowrap;
    }

    .concept-title-main {
        font-size: 1.2rem;
        white-space: nowrap;
    }

    .intro-image-wrapper {
        aspect-ratio: 4 / 3;
    }

    .highlight-brand {
        font-size: 1.4rem;
    }

    .typing-char.highlight-brand-char {
        font-size: 1.4rem;
    }

    .intro-bubble.ib2,
    .intro-bubble.ib3 {
        display: none;
    }

    .intro-drop.id2,
    .intro-drop.id3 {
        display: none;
    }

    .intro {
        padding-bottom: 2rem;
    }

    /* 768pxと同じ間隔を維持 */
    .intro-text-block {
        padding: 0.5rem var(--spacing-sm) 2rem;
    }

    .intro-video-block {
        padding: 2rem var(--spacing-sm) 3rem;
    }

    .intro-video-label-wrapper {
        margin-bottom: 1.5rem;
    }

    .intro-video-label-text {
        font-size: 1.4rem;
    }

    .intro-overlap-block {
        padding: 2rem var(--spacing-sm) 0;
    }
}

/* ==========================================
   ヒーロー＆イントロ レスポンシブ
   ========================================== */
@media screen and (max-width: 768px) {
    .hero {
        min-height: 100vh;
        background-color: #0d0b09;
    }

    .hero-bg-image {
        height: 60%;
        top: 50%;
        transform: translateY(-50%);
    }

    .scroll-indicator {
        bottom: 1.5rem;
    }

    .intro {
        padding: 4rem 0;
    }

    .intro-text {
        font-size: 0.9rem;
        line-height: 2.2;
        margin-bottom: 1.5rem;
    }

    .intro-highlight {
        font-size: 1rem;
        line-height: 2;
        padding-top: 1.5rem;
    }

    .bubble:nth-child(n+5) {
        display: none;
    }
}

/* ==========================================
   セクション共通スタイル
   ========================================== */
section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

section:nth-child(even) {
    background-color: var(--color-white);
}

section:nth-child(odd) {
    background-color: var(--color-cream);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-number {
    display: inline-block;
    font-family: var(--font-accent);
    font-size: 0.9rem;
    color: var(--color-pink-dark);
    letter-spacing: 3px;
    margin-bottom: 1rem;
    font-weight: 500;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-pink) 0%, var(--color-beige) 100%);
}

.section-subtitle {
    font-family: var(--font-accent);
    font-size: 0.75rem;
    color: var(--color-gray);
    letter-spacing: 0.15em;
    margin-top: 1.5rem;
}

/* ==========================================
   コンセプトセクション
   ========================================== */
.concept {
    background: linear-gradient(135deg, #fce4e4 0%, #f5d6c6 30%, #fce8dc 60%, #fff5f0 100%);
    padding: 0;
    overflow: hidden;
    position: relative;
}

/* 背景アニメーション */
.concept-bg-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

/* 浮遊する円 */
.concept-circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.15;
}

.concept-circle.c1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--color-beige) 0%, transparent 70%);
    top: -10%;
    right: 10%;
    animation: conceptFloat 20s ease-in-out infinite;
}

.concept-circle.c2 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, var(--color-pink) 0%, transparent 70%);
    bottom: 10%;
    right: 25%;
    animation: conceptFloat 25s ease-in-out infinite reverse;
}

.concept-circle.c3 {
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, var(--color-beige-dark) 0%, transparent 70%);
    top: 40%;
    right: 5%;
    animation: conceptFloat 18s ease-in-out infinite 2s;
}

/* 光のグロー */
.concept-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.25;
}

.concept-glow.g1 {
    width: 350px;
    height: 350px;
    background: var(--color-pink-light);
    top: 20%;
    right: 15%;
    animation: conceptPulse 8s ease-in-out infinite;
}

.concept-glow.g2 {
    width: 250px;
    height: 250px;
    background: var(--color-beige-light);
    bottom: 20%;
    right: 30%;
    animation: conceptPulse 10s ease-in-out infinite 3s;
}

/* 小さなパーティクル */
.concept-particle {
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--color-beige);
    border-radius: 50%;
    opacity: 0.4;
}

.concept-particle.p1 {
    top: 15%;
    right: 20%;
    animation: conceptSparkle 4s ease-in-out infinite;
}

.concept-particle.p2 {
    top: 35%;
    right: 8%;
    animation: conceptSparkle 5s ease-in-out infinite 1s;
}

.concept-particle.p3 {
    top: 60%;
    right: 22%;
    animation: conceptSparkle 4.5s ease-in-out infinite 2s;
}

.concept-particle.p4 {
    bottom: 25%;
    right: 12%;
    animation: conceptSparkle 3.5s ease-in-out infinite 0.5s;
}

.concept-particle.p5 {
    bottom: 40%;
    right: 35%;
    animation: conceptSparkle 5s ease-in-out infinite 1.5s;
}

/* アニメーション定義 */
@keyframes conceptFloat {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(30px, -20px) scale(1.05);
    }
    50% {
        transform: translate(-20px, 30px) scale(0.95);
    }
    75% {
        transform: translate(-30px, -10px) scale(1.02);
    }
}

@keyframes conceptPulse {
    0%, 100% {
        opacity: 0.2;
        transform: scale(1);
    }
    50% {
        opacity: 0.35;
        transform: scale(1.1);
    }
}

@keyframes conceptSparkle {
    0%, 100% {
        opacity: 0.3;
        transform: scale(1);
    }
    50% {
        opacity: 0.7;
        transform: scale(1.5);
    }
}

.concept-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 85vh;
    align-items: center;
    position: relative;
    z-index: 1;
}

/* 左側：画像 */
.concept-image-side {
    position: relative;
    height: 100%;
    min-height: 500px;
    padding: 3rem;
}

.concept-visual-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: 4px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

/* 右側：テキスト */
.concept-text-side {
    padding: 5rem 8%;
    padding-right: 10%;
}

/* コンセプトテキストコンテンツラッパー（スケーリング用） */
.concept-text-content {
    --concept-scale: 1;
    transform: scale(var(--concept-scale));
    transform-origin: left top;
}

/* ラベル */
.concept-label {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 2.5rem;
}

.concept-dot {
    width: 10px;
    height: 10px;
    background: var(--color-beige-dark);
    border-radius: 50%;
}

.concept-label-text {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--color-beige-dark);
}

/* 見出し */
.concept-heading {
    font-family: var(--font-yu-gothic);
    font-size: 2.8rem;
    font-weight: 700;
    line-height: 1.5;
    color: var(--color-black);
    margin-bottom: 2.5rem;
    letter-spacing: 0.02em;
}

/* 説明文 */
.concept-description p {
    font-family: var(--font-yu-gothic);
    font-size: 1rem;
    font-weight: 400;
    line-height: 2.2;
    color: var(--color-black);
    margin-bottom: 1.8rem;
}

.concept-description p:last-child {
    margin-bottom: 0;
}

.concept-highlight-text {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(201, 168, 124, 0.3);
}

.concept-highlight-text strong {
    color: var(--color-beige-dark);
    font-weight: 600;
}

/* レスポンシブ */
@media screen and (max-width: 1200px) {
    .concept-heading {
        font-size: 2.4rem;
    }

    .concept-text-side {
        padding: 4rem 6%;
    }
}

@media screen and (max-width: 1024px) {
    .concept-layout {
        grid-template-columns: 1fr;
        min-height: auto;
    }

    .concept-image-side {
        min-height: 400px;
        max-height: 500px;
        padding: 2rem;
    }

    .concept-text-side {
        padding: 4rem var(--spacing-md);
        text-align: left;
    }

    .concept-label {
        justify-content: flex-start;
    }

    .concept-heading {
        font-size: 2rem;
        text-align: left;
    }

    .concept-description p {
        text-align: left;
    }
}

@media screen and (max-width: 768px) {
    .concept-image-side {
        min-height: 250px;
        max-height: 350px;
        padding: 1rem;
    }

    .concept-text-side {
        padding: 2.5rem var(--spacing-sm);
        text-align: left;
        overflow: hidden;
    }

    /* スケーリングで改行を防ぐ */
    .concept-text-content {
        --concept-scale: min(1, calc((100vw - 2rem) / 480px));
        transform: scale(var(--concept-scale));
        transform-origin: left top;
    }

    .concept-label {
        justify-content: flex-start;
    }

    .concept-heading {
        white-space: nowrap;
        text-align: left;
    }

    .concept-description p {
        white-space: nowrap;
        text-align: left;
    }

    .concept-highlight-text {
        white-space: normal;
    }

    .concept-highlight-text p {
        white-space: nowrap;
    }
}

/* ==========================================
   画像プレースホルダー
   ========================================== */
.image-placeholder {
    background: linear-gradient(135deg, var(--color-pink-light) 0%, var(--color-cream) 100%);
    border-radius: 15px;
    padding: 3rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    box-shadow: 0 10px 40px rgba(245, 198, 198, 0.2);
    transition: var(--transition);
}

.image-placeholder:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 50px rgba(245, 198, 198, 0.3);
}

.placeholder-label {
    font-family: var(--font-accent);
    font-size: 3rem;
    color: var(--color-beige);
    margin-bottom: 1rem;
}

.image-placeholder p {
    font-size: 1rem;
    color: var(--color-gray);
    text-align: center;
}

/* ==========================================
   特徴セクション
   ========================================== */

/* 2in1 製品紹介 */
.product-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 5rem;
}

.product-intro-images {
    display: flex;
    gap: 2rem;
    justify-content: center;
}

.intro-image {
    width: 45%;
    max-width: 260px;
    border-radius: 15px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
    transition: var(--transition);
}

.intro-image:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}

.product-intro-text {
    text-align: left;
}

.intro-title {
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
}

.intro-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-beige) 0%, var(--color-pink-dark) 100%);
}

.intro-description {
    font-size: 1.15rem;
    color: var(--color-gray);
    line-height: 2.1;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

/* ==========================================
   FEATUREセクション共通ラッパー
   ========================================== */
.features-wrapper {
    position: relative;
    background: #faf8f5;
}

.features-wrapper section {
    background: transparent;
}

/* ==========================================
   特徴セクション - コンセプト風デザイン
   ========================================== */
.features-section {
    background: transparent;
    padding: 0;
    overflow: hidden;
    position: relative;
}

.features-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 85vh;
    align-items: center;
    position: relative;
    z-index: 1;
}

/* 左側：テキスト */
.features-text-side {
    padding: 5rem 10%;
    padding-left: 8%;
}

/* FEATUREテキストコンテンツラッパー（スケーリング用） */
.features-text-content {
    --features-scale: 1;
    transform: scale(var(--features-scale));
    transform-origin: left top;
}

.features-label {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 2.5rem;
}

.features-dot {
    width: 10px;
    height: 10px;
    background: var(--color-beige-dark);
    border-radius: 50%;
}

.features-label-text {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--color-beige-dark);
}

.features-heading {
    font-family: var(--font-yu-gothic);
    font-size: 2.8rem;
    font-weight: 700;
    line-height: 1.5;
    color: var(--color-black);
    margin-bottom: 2.5rem;
    letter-spacing: 0.02em;
}

.features-description {
    margin-bottom: 0;
}

.features-description p {
    font-family: var(--font-yu-gothic);
    font-size: 1rem;
    font-weight: 400;
    line-height: 2.2;
    color: var(--color-black);
    margin-bottom: 1.8rem;
}

.features-description p:last-child {
    margin-bottom: 0;
}

/* 右側：画像（2枚縦並び配置） */
.features-image-side {
    display: flex;
    flex-direction: column;
    padding: 5rem 5% 5rem 0;
}

.features-image-stack {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.features-image-item {
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.18);
    overflow: hidden;
}

.features-image-item.item-1 {
    width: 85%;
    margin-left: 0;
}

.features-image-item.item-2 {
    width: 85%;
    margin-left: auto;
}

/* 1枚のみの場合 */
.features-image-stack.single-image .features-image-item.item-1 {
    width: 100%;
    margin: 0 auto;
}

.features-image-item img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    aspect-ratio: 4 / 3;
}

/* 特徴セクション レスポンシブ */
@media screen and (max-width: 1200px) {
    .features-heading {
        font-size: 2.4rem;
    }

    .features-text-side {
        padding: 4rem 6%;
    }
}

@media screen and (max-width: 1024px) {
    .features-layout {
        grid-template-columns: 1fr;
        min-height: auto;
    }

    .features-text-side {
        padding: 4rem var(--spacing-md);
        order: 2;
    }

    .features-image-side {
        order: 1;
        padding: 3rem var(--spacing-md);
    }

    .features-image-stack {
        gap: 1.5rem;
    }

    .features-image-item.item-1 {
        width: 80%;
    }

    .features-image-item.item-2 {
        width: 80%;
    }

    .features-heading {
        font-size: 2rem;
    }
}

@media screen and (max-width: 768px) {
    .features-image-side {
        padding: 1.5rem var(--spacing-sm);
    }

    .features-image-stack {
        gap: 1rem;
    }

    .features-text-side {
        padding: 2.5rem var(--spacing-sm);
        overflow: hidden;
    }

    /* スケーリングで改行を防ぐ */
    .features-text-content {
        --features-scale: min(1, calc((100vw - 2rem) / 520px));
        transform: scale(var(--features-scale));
        transform-origin: left top;
    }

    .features-heading {
        white-space: nowrap;
    }

    .features-description p {
        white-space: nowrap;
    }

    .features-image-item.item-1 {
        width: 90%;
    }

    .features-image-item.item-2 {
        width: 90%;
    }
}

/* ==========================================
   洗浄ハンドピースの原理セクション
   ========================================== */
.handpiece-section {
    background: transparent;
    padding: 0;
    overflow: hidden;
    position: relative;
    z-index: 1;
}

.handpiece-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 85vh;
    align-items: center;
    position: relative;
    z-index: 1;
}

/* 左側：画像（2枚縦並び配置） */
.handpiece-image-side {
    display: flex;
    flex-direction: column;
    padding: 5rem 0 5rem 5%;
}

.handpiece-image-stack {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.handpiece-image-item {
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.18);
    overflow: hidden;
}

.handpiece-image-item.item-1 {
    width: 85%;
    margin-left: auto;
}

.handpiece-image-item.item-2 {
    width: 85%;
    margin-left: 0;
}

.handpiece-image-item img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    aspect-ratio: 4 / 3;
}

/* 右側：テキスト */
.handpiece-text-side {
    padding: 5rem 8%;
    padding-right: 10%;
}

/* ハンドピーステキストコンテンツラッパー（スケーリング用） */
.handpiece-text-content {
    --handpiece-scale: 1;
    transform: scale(var(--handpiece-scale));
    transform-origin: left top;
}

.handpiece-label {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 2.5rem;
}

.handpiece-dot {
    width: 10px;
    height: 10px;
    background: var(--color-beige-dark);
    border-radius: 50%;
}

.handpiece-label-text {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--color-beige-dark);
}

.handpiece-heading {
    font-family: var(--font-yu-gothic);
    font-size: 2.8rem;
    font-weight: 700;
    line-height: 1.5;
    color: var(--color-black);
    margin-bottom: 2.5rem;
    letter-spacing: 0.02em;
}

.handpiece-description {
    margin-bottom: 0;
}

.handpiece-feature-item {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(201, 168, 124, 0.2);
}

.handpiece-feature-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.handpiece-feature-item h4 {
    font-family: var(--font-yu-gothic);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 1rem;
}

.handpiece-feature-item p {
    font-family: var(--font-yu-gothic);
    font-size: 0.95rem;
    font-weight: 400;
    color: var(--color-black);
    line-height: 2;
}

/* 洗浄ハンドピース レスポンシブ */
@media screen and (max-width: 1200px) {
    .handpiece-heading {
        font-size: 2.4rem;
    }

    .handpiece-text-side {
        padding: 4rem 6%;
    }
}

@media screen and (max-width: 1024px) {
    .handpiece-layout {
        grid-template-columns: 1fr;
        min-height: auto;
    }

    .handpiece-image-side {
        order: 1;
        padding: 3rem var(--spacing-md);
    }

    .handpiece-image-stack {
        gap: 1.5rem;
    }

    .handpiece-image-item.item-1 {
        width: 80%;
    }

    .handpiece-image-item.item-2 {
        width: 80%;
    }

    .handpiece-text-side {
        padding: 4rem var(--spacing-md);
        order: 2;
    }

    .handpiece-heading {
        font-size: 2rem;
    }
}

@media screen and (max-width: 768px) {
    .handpiece-image-side {
        padding: 1.5rem var(--spacing-sm);
    }

    .handpiece-image-stack {
        gap: 1rem;
    }

    .handpiece-text-side {
        padding: 2.5rem var(--spacing-sm);
        overflow: hidden;
    }

    /* スケーリングで改行を防ぐ */
    .handpiece-text-content {
        --handpiece-scale: min(1, calc((100vw - 2rem) / 650px));
        transform: scale(var(--handpiece-scale));
        transform-origin: left top;
    }

    .handpiece-heading {
        white-space: nowrap;
    }

    .handpiece-feature-item h4 {
        white-space: nowrap;
    }

    .handpiece-feature-item p {
        white-space: nowrap;
    }

    .handpiece-image-item.item-1 {
        width: 75%;
        left: 0;
    }

    .handpiece-image-item.item-2 {
        width: 75%;
        right: 0;
    }
}

/* ==========================================
   旧ハンドピース機能スタイル（互換性維持用）
   ========================================== */
.handpiece-features {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.handpiece-feature {
    display: flex;
    gap: 1.5rem;
    padding: 2rem;
    background: linear-gradient(135deg, #fefefe 0%, #faf8f4 100%);
    border-radius: 16px;
    border-left: 4px solid var(--color-beige);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.handpiece-feature::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(253, 242, 248, 0.6), transparent);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.handpiece-feature:hover {
    transform: translateX(8px);
    box-shadow: 0 15px 40px rgba(212, 165, 116, 0.2);
}

.handpiece-feature:hover::before {
    opacity: 1;
}

.feature-num {
    font-family: var(--font-accent);
    font-size: 2.2rem;
    font-weight: 300;
    color: var(--color-beige);
    line-height: 1;
    min-width: 50px;
    position: relative;
    z-index: 1;
}

.feature-body {
    flex: 1;
    position: relative;
    z-index: 1;
}

.feature-body h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: 0.8rem;
    position: relative;
    padding-bottom: 0.6rem;
}

.feature-body h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, #fce7f3, var(--color-beige));
}

.feature-spec {
    font-size: 1rem;
    color: var(--color-beige-dark);
    font-weight: 500;
    margin-bottom: 0.8rem;
    padding: 0.6rem 1rem;
    background: linear-gradient(90deg, rgba(253, 242, 248, 0.9), rgba(252, 231, 243, 0.6));
    border-radius: 8px;
    display: inline-block;
}

.feature-spec strong {
    color: var(--color-beige-dark);
}

.highlight {
    color: var(--color-beige-dark);
    font-weight: 600;
}

.feature-body p {
    font-size: 0.95rem;
    color: var(--color-gray);
    line-height: 1.85;
}

/* レスポンシブ */
@media screen and (max-width: 1024px) {
    .handpiece-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .handpiece-visual {
        position: relative;
        top: 0;
        max-width: 350px;
        margin: 0 auto;
    }
}

@media screen and (max-width: 768px) {
    .handpiece-title {
        font-size: 1.8rem;
        letter-spacing: 0.1em;
    }

    .handpiece-subtitle {
        font-size: 0.7rem;
        letter-spacing: 0.15em;
    }

    .handpiece-feature {
        flex-direction: column;
        gap: 1rem;
        padding: 1.5rem;
    }

    .feature-num {
        font-size: 1.8rem;
    }

    .handpiece-feature:hover {
        transform: translateY(-5px);
    }
}

.feature-card {
    background: var(--color-white);
    padding: 2.5rem 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(245, 198, 198, 0.15);
    transition: var(--transition);
    border: 1px solid var(--color-beige-light);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(245, 198, 198, 0.25);
    border-color: var(--color-pink);
}

.feature-icon {
    margin-bottom: 1.5rem;
    color: var(--color-beige);
}

.feature-icon svg {
    width: 48px;
    height: 48px;
}

.feature-card h3 {
    font-size: 1.3rem;
    color: var(--color-black);
    margin-bottom: 1rem;
    font-weight: 600;
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--color-gray);
    line-height: 1.7;
}

/* ==========================================
   超音波ハンドピースセクション
   ========================================== */
/* ==========================================
   超音波ハンドピースセクション - FEATURE 03
   ========================================== */
.ultrasonic-section {
    position: relative;
    overflow: hidden;
    background: transparent;
    z-index: 1;
}

/* 縦並びレイアウト: ヘッダー → 画像 → テキスト */
.ultrasonic-vertical-layout {
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 1;
    padding: 6rem 0;
}

/* ヘッダーエリア: 画像の上に配置 */
.ultrasonic-header {
    text-align: center;
    padding: 0 8%;
    margin-bottom: 3rem;
}

/* 画像エリア: 2つの画像を横並び */
.ultrasonic-images-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    padding: 0 8%;
    margin-bottom: 4rem;
}

.ultrasonic-image-card {
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
}

.ultrasonic-image-card img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    display: block;
    transition: transform 0.6s ease;
}

.ultrasonic-image-card:hover img {
    transform: scale(1.03);
}

/* テキストコンテンツエリア */
.ultrasonic-content-area {
    padding: 0 12%;
    max-width: 1200px;
    margin: 0 auto;
}

/* 超音波テキストコンテンツラッパー（スケーリング用） */
.ultrasonic-text-content {
    --ultrasonic-scale: 1;
    transform: scale(var(--ultrasonic-scale));
    transform-origin: left top;
}

/* 超音波ヘッダーコンテンツラッパー（スケーリング用） */
.ultrasonic-header-content {
    --ultrasonic-header-scale: 1;
    transform: scale(var(--ultrasonic-header-scale));
    transform-origin: center top;
}

.ultrasonic-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    margin-bottom: 1.5rem;
}

.ultrasonic-dot {
    width: 10px;
    height: 10px;
    background: var(--color-beige-dark);
    border-radius: 50%;
}

.ultrasonic-label-text {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--color-beige-dark);
}

.ultrasonic-title-large {
    font-family: var(--font-yu-gothic);
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--color-black);
    letter-spacing: 0.02em;
    line-height: 1.5;
    margin-bottom: 0.8rem;
    text-align: center;
}

.ultrasonic-subtitle-spaced {
    font-family: var(--font-accent);
    font-size: 0.65rem;
    color: var(--color-gray);
    letter-spacing: 0.15em;
    margin-bottom: 0;
    font-weight: 400;
    text-align: center;
}

.ultrasonic-description {
    margin-bottom: 2.5rem;
    text-align: center;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.ultrasonic-description p {
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--color-gray-dark);
    line-height: 2.2;
    letter-spacing: 0.02em;
}

.ultrasonic-applications h4 {
    font-family: var(--font-yu-gothic);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 1.5rem;
    padding-bottom: 0.8rem;
    border-bottom: 1px solid rgba(201, 168, 124, 0.2);
}

.application-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem 3rem;
}

.application-item {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(201, 168, 124, 0.2);
}

.application-item:nth-child(3),
.application-item:nth-child(4) {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.application-item h5 {
    font-family: var(--font-yu-gothic);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 1rem;
}

.application-item p {
    font-family: var(--font-yu-gothic);
    font-size: 0.95rem;
    font-weight: 400;
    color: var(--color-black);
    line-height: 2;
    text-indent: 1em;
}

/* 超音波セクション レスポンシブ */
@media screen and (max-width: 1024px) {
    .ultrasonic-vertical-layout {
        padding: 4rem 0;
    }

    .ultrasonic-header {
        padding: 0 5%;
        margin-bottom: 2.5rem;
    }

    .ultrasonic-images-row {
        gap: 1.5rem;
        padding: 0 5%;
        margin-bottom: 3rem;
    }

    .ultrasonic-content-area {
        padding: 0 5%;
    }

    .ultrasonic-title-large {
        font-size: 2rem;
    }
}

@media screen and (max-width: 768px) {
    .ultrasonic-section {
        padding-top: 0;
        padding-bottom: 0;
    }

    .ultrasonic-vertical-layout {
        padding: 2.5rem 0;
        padding-bottom: 0;
    }

    /* 画像を上に、タイトルを下に表示 */
    .ultrasonic-images-row {
        order: 1;
    }

    .ultrasonic-header {
        order: 2;
        padding: 0 4%;
        margin-bottom: 1.5rem;
        margin-top: 2rem;
        overflow: hidden;
        text-align: left;
    }

    .ultrasonic-content-area {
        order: 3;
    }

    /* スケーリングで改行を防ぐ */
    .ultrasonic-header-content {
        --ultrasonic-header-scale: min(1, calc((100vw - 2rem) / 390px));
        transform: scale(var(--ultrasonic-header-scale));
        transform-origin: left top;
    }

    .ultrasonic-label {
        justify-content: flex-start;
    }

    .ultrasonic-title-large {
        white-space: nowrap;
        text-align: left;
    }

    .ultrasonic-images-row {
        grid-template-columns: 1fr;
        padding: 0 4%;
        gap: 1rem;
        margin-bottom: 0;
    }

    .ultrasonic-content-area {
        padding: 0 4%;
        overflow: hidden;
        margin-top: 1.5rem;
    }

    /* スケーリングで改行を防ぐ */
    .ultrasonic-text-content {
        --ultrasonic-scale: min(1, calc((100vw - 3rem) / 650px));
        transform: scale(var(--ultrasonic-scale));
        transform-origin: left top;
    }

    .ultrasonic-description {
        padding: 0;
        text-align: left;
    }

    .ultrasonic-description p {
        white-space: nowrap;
        text-align: left;
    }

    .application-grid {
        grid-template-columns: 1fr;
    }

    .application-item h5 {
        white-space: nowrap;
        text-align: left;
    }

    .application-item p {
        white-space: nowrap;
        text-align: left;
    }
}

/* ==========================================
   毛穴洗浄プロセス
   ========================================== */
.process {
    background: var(--color-white);
    padding: 6rem 0;
}

/* プロセスヘッダーコンテンツラッパー（スケーリング用） */
.process-header-content {
    --process-header-scale: 1;
    transform: scale(var(--process-header-scale));
    transform-origin: center top;
}

/* プロセステキストコンテンツラッパー（スケーリング用） */
.process-text-scale {
    --process-text-scale: 1;
    transform: scale(var(--process-text-scale));
    transform-origin: center center;
}

/* 画像付きプロセスステップ - 縦並びタイムラインデザイン */
.process-steps-with-images {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-top: 3rem;
    position: relative;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

/* 中央のタイムラインライン */
.process-steps-with-images::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--color-beige-light) 0%, var(--color-beige) 50%, var(--color-beige-light) 100%);
    transform: translateX(-50%);
    z-index: 0;
}

.process-step-card {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 2rem;
    padding: 2rem 0;
    position: relative;
}

/* 奇数番目：画像が左、テキストが右 */
.process-step-card:nth-child(odd) .step-image {
    order: 1;
    justify-self: end;
}

.process-step-card:nth-child(odd) .step-number {
    order: 2;
}

.process-step-card:nth-child(odd) .step-text-content {
    order: 3;
    text-align: left;
}

/* 偶数番目：テキストが左、画像が右 */
.process-step-card:nth-child(even) .step-text-content {
    order: 1;
    text-align: right;
}

.process-step-card:nth-child(even) .step-number {
    order: 2;
}

.process-step-card:nth-child(even) .step-image {
    order: 3;
    justify-self: start;
}

.step-image {
    width: 350px;
    height: 350px;
    overflow: hidden;
    background: #fafafa;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.step-image:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.step-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 1rem;
    transition: transform 0.3s ease;
}

.step-image:hover img {
    transform: scale(1.03);
}

.process-step-card .step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--color-white);
    border: 2px solid var(--color-beige);
    color: var(--color-beige-dark);
    font-family: var(--font-accent);
    font-size: 1.4rem;
    font-weight: 500;
    position: relative;
    z-index: 2;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    flex-shrink: 0;
}

.step-text-content {
    max-width: 280px;
}

.process-step-card h3 {
    font-size: 1.1rem;
    color: var(--color-black);
    font-weight: 500;
    line-height: 1.6;
    margin: 0;
    font-family: var(--font-shippori-mincho);
    letter-spacing: 0.05em;
}

/* 矢印は非表示（タイムラインで代替） */
.process-arrow-line {
    display: none;
}

/* レスポンシブ */
@media screen and (max-width: 900px) {
    .process-steps-with-images::before {
        left: 28px;
    }

    .process-step-card {
        grid-template-columns: auto 1fr;
        gap: 1.5rem;
    }

    .process-step-card:nth-child(odd) .step-image,
    .process-step-card:nth-child(even) .step-image {
        order: 2;
        justify-self: start;
        grid-column: 2;
    }

    .process-step-card:nth-child(odd) .step-number,
    .process-step-card:nth-child(even) .step-number {
        order: 1;
        grid-row: 1 / 3;
    }

    .process-step-card:nth-child(odd) .step-text-content,
    .process-step-card:nth-child(even) .step-text-content {
        order: 3;
        text-align: left;
        grid-column: 2;
    }

    .step-image {
        width: 100%;
        max-width: 320px;
        height: 240px;
    }

    .process-step-card .step-number {
        width: 48px;
        height: 48px;
        font-size: 1.2rem;
    }
}

@media screen and (max-width: 768px) {
    .process {
        padding: 4rem 0;
    }

    .process .section-header {
        overflow: hidden;
        text-align: center;
        display: flex;
        justify-content: center;
    }

    /* スケーリングで改行を防ぐ */
    .process-header-content {
        --process-header-scale: min(1, calc((100vw - 2rem) / 280px));
        transform: scale(var(--process-header-scale));
        transform-origin: center top;
    }

    .process .section-title {
        white-space: nowrap;
        text-align: center;
    }

    .process .section-subtitle {
        white-space: nowrap;
        text-align: center;
    }

    .process-steps-with-images::before {
        display: none;
    }

    .process-step-card {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1rem;
        padding: 1.5rem 0;
    }

    .process-step-card:nth-child(odd) .step-image,
    .process-step-card:nth-child(even) .step-image,
    .process-step-card:nth-child(odd) .step-number,
    .process-step-card:nth-child(even) .step-number,
    .process-step-card:nth-child(odd) .step-text-content,
    .process-step-card:nth-child(even) .step-text-content {
        order: unset;
        justify-self: center;
        text-align: center;
        grid-column: 1;
        grid-row: auto;
    }

    .step-image {
        max-width: 260px;
        height: 220px;
    }

    .step-text-content {
        max-width: 100%;
        overflow: hidden;
    }

    /* スケーリングで改行を防ぐ */
    .process-text-scale {
        --process-text-scale: min(1, calc((100vw - 2rem) / 260px));
        transform: scale(var(--process-text-scale));
        transform-origin: center center;
    }

    .process-step-card h3 {
        white-space: nowrap;
    }

    .process-step-card .step-number {
        width: 55px;
        height: 55px;
        font-size: 1.4rem;
    }
}

/* 旧スタイル（互換性維持） */
.process-steps {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 3rem;
}

.process-step {
    flex: 1;
    background: var(--color-white);
    padding: 2rem 1.5rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(201, 168, 124, 0.1);
    transition: var(--transition);
}

.process-step:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(201, 168, 124, 0.2);
}

.step-number {
    display: inline-block;
    width: 50px;
    height: 50px;
    line-height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-pink) 0%, var(--color-beige) 100%);
    color: var(--color-white);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.step-content h3 {
    font-size: 1rem;
    color: var(--color-black);
    margin-bottom: 0.8rem;
    font-weight: 600;
}

.step-content p {
    font-size: 0.85rem;
    color: var(--color-gray);
    line-height: 1.6;
}

.process-arrow {
    color: var(--color-beige);
}

.process-arrow svg {
    width: 24px;
    height: 24px;
}

/* ==========================================
   技術セクション
   ========================================== */
.tech-content {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.tech-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.tech-item.reverse {
    direction: rtl;
}

.tech-item.reverse > * {
    direction: ltr;
}

.tech-placeholder {
    min-height: 280px;
}

.tech-image {
    width: 100%;
    max-width: 400px;
    border-radius: 15px;
    box-shadow: 0 15px 40px rgba(201, 168, 124, 0.2);
    transition: var(--transition);
}

.tech-image:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 50px rgba(201, 168, 124, 0.3);
}

.tech-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.tech-icon {
    color: var(--color-beige);
    margin-bottom: 1rem;
}

.tech-text h3 {
    font-size: 1.8rem;
    color: var(--color-black);
    margin-bottom: 1rem;
    font-weight: 600;
}

.tech-detail {
    font-size: 1.05rem;
    color: var(--color-gray);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.tech-list {
    list-style: none;
}

.tech-list li {
    font-size: 0.95rem;
    color: var(--color-gray);
    line-height: 1.8;
    padding-left: 1.5rem;
    position: relative;
    margin-bottom: 1rem;
}

.tech-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 8px;
    height: 8px;
    background: var(--color-pink);
    border-radius: 50%;
}

.tech-list strong {
    color: var(--color-beige-dark);
}

/* ==========================================
   主要部品セクション - 新デザイン
   ========================================== */
/* ==========================================
   技術セクション - 参考デザインスタイル
   ========================================== */
.components {
    background: linear-gradient(135deg, #fce4e4 0%, #f5d6c6 30%, #fce8dc 60%, #fff5f0 100%);
    padding: 5rem 0 6rem;
    position: relative;
}

/* ヘッダー部分 */
.components-header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 0 5%;
}

/* TECHNOLOGYヘッダーコンテンツラッパー（スケーリング用） */
.components-header-content {
    --components-header-scale: 1;
    transform: scale(var(--components-header-scale));
    transform-origin: center top;
}

.components-label {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    color: rgba(0, 0, 0, 0.5);
    letter-spacing: 0.3em;
    margin-bottom: 1rem;
    font-weight: 700;
}

.components-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-black);
    line-height: 1.6;
    letter-spacing: 0.08em;
    margin-bottom: 1.5rem;
}

.components-description {
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--color-gray-dark);
    line-height: 2;
    letter-spacing: 0.02em;
}

/* 技術コンボレイアウト */
.tech-combo-layout {
    display: flex;
    align-items: stretch;
    justify-content: center;
    gap: 0;
    padding: 0 3%;
}

/* 各技術カード */
.tech-combo-card {
    flex: 1;
    max-width: 480px;
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
}

/* カードヘッダー */
.tech-combo-card-header {
    text-align: center;
    margin-bottom: 1.5rem;
    position: relative;
}

.tech-combo-card-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 0.3rem;
    letter-spacing: 0.02em;
}

.tech-combo-card-sub {
    font-family: var(--font-body);
    font-size: 0.75rem;
    color: var(--color-gray);
    margin-bottom: 1rem;
}

.tech-combo-card-product {
    width: 100%;
    height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tech-combo-card-product img {
    max-width: 100%;
    max-height: 220px;
    object-fit: contain;
}

/* カードボディ */
.tech-combo-card-body {
    background: rgba(255, 255, 255, 0.6);
    border-radius: 16px;
    padding: 1.5rem;
    flex: 1;
}

/* カードボディラッパー（スケーリング用） */
.tech-combo-body-wrapper {
    --tech-body-scale: 1;
    transform: scale(var(--tech-body-scale));
    transform-origin: left top;
}

/* カードボディテキストラッパー（互換性維持） */
.tech-combo-body-content {
    /* 不要になったが互換性のため残す */
}

/* 説明テキスト */
.tech-combo-feature-text {
    font-family: var(--font-body);
    font-size: 1.0rem;
    color: var(--color-gray-dark);
    line-height: 1.8;
    letter-spacing: 0.01em;
}

/* プラス記号（白い円で囲む） */
.tech-combo-plus {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    flex-shrink: 0;
    position: relative;
}

.tech-combo-plus::before {
    content: '+';
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: #fff;
    border-radius: 50%;
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 400;
    color: rgba(0, 0, 0, 0.3);
    line-height: 1;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

/* レスポンシブ */
@media screen and (max-width: 1024px) {
    .tech-combo-card {
        max-width: 420px;
        padding: 1.5rem;
    }

    .tech-combo-plus {
        width: 60px;
    }

    .tech-combo-plus::before {
        width: 45px;
        height: 45px;
        font-size: 1.6rem;
    }

    .tech-combo-card-product {
        height: 180px;
    }

    .tech-combo-card-product img {
        max-height: 180px;
    }
}

@media screen and (max-width: 768px) {
    .components {
        padding: 3rem 0;
    }

    .components-header {
        margin-bottom: 2rem;
        overflow: hidden;
        text-align: left;
    }

    /* スケーリングで改行を防ぐ */
    .components-header-content {
        --components-header-scale: min(1, calc((100vw - 2rem) / 320px));
        transform: scale(var(--components-header-scale));
        transform-origin: left top;
    }

    .components-label {
        white-space: nowrap;
        text-align: left;
    }

    .components-title {
        white-space: nowrap;
        text-align: left;
    }

    .components-description {
        white-space: nowrap;
        text-align: left;
    }

    .tech-combo-layout {
        flex-direction: column;
        align-items: center;
        gap: 0;
        padding: 0 5%;
    }

    .tech-combo-card {
        max-width: 100%;
        width: 100%;
        padding: 1.2rem;
        border-radius: 16px;
        overflow: hidden;
    }

    .tech-combo-card-title {
        font-size: 0.9rem;
    }

    .tech-combo-card-product {
        height: 150px;
    }

    .tech-combo-card-product img {
        max-height: 150px;
    }

    /* スケーリングで外枠含めて縮小 */
    .tech-combo-body-wrapper {
        --tech-body-scale: min(1, calc((100vw - 4rem) / 420px));
        transform: scale(var(--tech-body-scale));
        transform-origin: left top;
    }

    .tech-combo-card-body {
        padding: 1rem;
        white-space: nowrap;
    }

    .tech-combo-feature-text {
        white-space: nowrap;
        text-align: left;
    }

    .tech-combo-plus {
        width: 100%;
        height: 55px;
        padding: 0.5rem 0;
    }

    .tech-combo-plus::before {
        width: 40px;
        height: 40px;
        font-size: 1.4rem;
    }
}

/* ==========================================
   メリットセクション
   ========================================== */
/* ==========================================
   メリットセクション - 統一デザイン
   ========================================== */
.benefits {
    position: relative;
    overflow: hidden;
    background: #ffffff;
}

/* 背景アニメーション */
.benefits-bg-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.benefits-circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.15;
}

.benefits-circle.bc1 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, var(--color-pink) 0%, transparent 70%);
    top: 15%;
    left: -100px;
    animation: floatCircle 16s ease-in-out infinite;
}

.benefits-circle.bc2 {
    width: 280px;
    height: 280px;
    background: radial-gradient(circle, var(--color-beige) 0%, transparent 70%);
    bottom: 15%;
    right: -80px;
    animation: floatCircle 20s ease-in-out infinite reverse;
}

.benefits-circle.bc3 {
    width: 180px;
    height: 180px;
    background: radial-gradient(circle, var(--color-pink-light) 0%, transparent 70%);
    top: 60%;
    left: 40%;
    animation: floatCircle 14s ease-in-out infinite;
}

.benefits-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.1;
}

.benefits-glow.bg1 {
    width: 300px;
    height: 300px;
    background: var(--color-pink);
    top: 20%;
    right: 30%;
    animation: glowPulse 9s ease-in-out infinite;
}

.benefits-glow.bg2 {
    width: 250px;
    height: 250px;
    background: var(--color-beige);
    bottom: 25%;
    left: 20%;
    animation: glowPulse 11s ease-in-out infinite reverse;
}

/* レイアウト（conceptと同じ構造） */
.benefits-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 85vh;
    align-items: center;
    position: relative;
    z-index: 1;
}

/* 画像側 */
.benefits-image-side {
    position: relative;
    height: 100%;
    min-height: 500px;
    padding: 3rem;
}

.benefits-visual-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: 4px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

/* テキスト側 */
.benefits-text-side {
    padding: 5rem 8%;
    padding-right: 10%;
}

/* BENEFITSテキストコンテンツラッパー（スケーリング用） */
.benefits-text-content {
    --benefits-scale: 1;
    transform: scale(var(--benefits-scale));
    transform-origin: left top;
}

.benefits-label {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    color: var(--color-pink);
    letter-spacing: 0.3em;
    margin-bottom: 1rem;
    font-weight: 700;
}

.benefits-title {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--color-black);
    letter-spacing: 0.05em;
    line-height: 1.4;
    margin-bottom: 2.5rem;
}

/* メリットグリッド */
.benefits-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.2rem;
}

.benefits-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid rgba(201, 168, 124, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.benefits-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(201, 168, 124, 0.12);
}

.benefits-card-number {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    color: var(--color-pink);
    font-weight: 700;
    margin-bottom: 0.6rem;
    letter-spacing: 0.1em;
}

.benefits-card-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 0.6rem;
}

.benefits-card-text {
    font-family: var(--font-body);
    font-size: 0.8rem;
    color: var(--color-gray-dark);
    line-height: 1.8;
}

/* レスポンシブ */
@media screen and (max-width: 1024px) {
    .benefits-layout {
        grid-template-columns: 1fr;
        min-height: auto;
    }

    .benefits-image-side {
        min-height: 400px;
        max-height: 500px;
        padding: 2rem;
    }

    .benefits-text-side {
        padding: 4rem var(--spacing-md);
        text-align: left;
    }

    .benefits-title {
        font-size: 1.8rem;
    }

    .benefits-grid {
        gap: 1rem;
    }
}

@media screen and (max-width: 768px) {
    .benefits-image-side {
        min-height: 250px;
        max-height: 350px;
        padding: 1rem;
    }

    .benefits-text-side {
        padding: 2.5rem var(--spacing-sm);
        text-align: left;
        overflow: hidden;
    }

    /* スケーリングで改行を防ぐ */
    .benefits-text-content {
        --benefits-scale: min(1, calc((100vw - 2rem) / 520px));
        transform: scale(var(--benefits-scale));
        transform-origin: left top;
    }

    .benefits-label {
        white-space: nowrap;
        font-size: 1rem;
    }

    .benefits-title {
        white-space: nowrap;
        font-size: 2rem;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .benefits-card {
        padding: 1.5rem;
    }

    .benefits-card-title {
        white-space: nowrap;
        font-size: 1.2rem;
    }

    .benefits-card-text {
        white-space: nowrap;
        font-size: 1rem;
        line-height: 2;
    }

    .benefits-circle.bc1,
    .benefits-circle.bc2,
    .benefits-circle.bc3 {
        opacity: 0.1;
    }
}

/* ==========================================
   組み合わせセクション
   ========================================== */
.combination {
    background: var(--color-white);
    padding: 6rem 0;
}

.combination-header {
    margin-bottom: 3rem;
}

/* 組み合わせヘッダーコンテンツラッパー（スケーリング用） */
.combination-header-content {
    --combination-header-scale: 1;
    transform: scale(var(--combination-header-scale));
    transform-origin: left top;
}

/* 組み合わせアイテムラッパー（スケーリング用） */
.combination-items-content {
    --combination-items-scale: 1;
    transform: scale(var(--combination-items-scale));
    transform-origin: left top;
}

.combination-label {
    font-family: var(--font-accent);
    font-size: 0.65rem;
    color: var(--color-gray);
    letter-spacing: 0.15em;
    margin-bottom: 1rem;
}

.combination-title {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--color-black);
    line-height: 1.5;
    letter-spacing: 0.05em;
}

.combination-items {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.combination-row {
    display: grid;
    grid-template-columns: 1fr 180px;
    gap: 2rem;
    align-items: center;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.combination-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.combination-text {
    flex: 1;
}

.combination-effect {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.7rem;
    color: var(--color-white);
    background: var(--color-pink);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    margin-bottom: 0.6rem;
    letter-spacing: 0.05em;
}

.combination-text h4 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 0.6rem;
}

.combination-text p {
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--color-gray-dark);
    line-height: 1.9;
}

.combination-image {
    width: 180px;
    flex-shrink: 0;
}

.combination-image img {
    width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: 8px;
}

/* レスポンシブ */
@media screen and (max-width: 900px) {
    .combination-title {
        font-size: 1.8rem;
    }

    .combination-row {
        grid-template-columns: 1fr 140px;
        gap: 1.5rem;
    }

    .combination-image {
        width: 140px;
    }
}

@media screen and (max-width: 768px) {
    .combination-header {
        overflow: hidden;
    }

    /* スケーリングで改行を防ぐ */
    .combination-header-content {
        --combination-header-scale: min(1, calc((100vw - 4rem) / 360px));
        transform: scale(var(--combination-header-scale));
        transform-origin: left top;
    }

    .combination-label {
        white-space: nowrap;
    }

    .combination-title {
        white-space: nowrap;
    }

    .combination-items {
        overflow: hidden;
    }

    /* スケーリングで改行を防ぐ */
    .combination-items-content {
        --combination-items-scale: min(1, calc((100vw - 4rem) / 480px));
        transform: scale(var(--combination-items-scale));
        transform-origin: left top;
    }

    .combination-text h4 {
        white-space: nowrap;
    }

    .combination-text p {
        white-space: nowrap;
    }
}

@media screen and (max-width: 600px) {
    .combination {
        padding: 4rem 0;
    }

    .combination-header {
        overflow: hidden;
    }

    /* スケーリングで改行を防ぐ */
    .combination-header-content {
        --combination-header-scale: min(1, calc((100vw - 2rem) / 360px));
        transform: scale(var(--combination-header-scale));
        transform-origin: left top;
    }

    .combination-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .combination-image {
        width: 120px;
        order: -1;
    }

    /* スケーリングで改行を防ぐ */
    .combination-items-content {
        --combination-items-scale: min(1, calc((100vw - 2rem) / 480px));
        transform: scale(var(--combination-items-scale));
        transform-origin: left top;
    }
}

/* ==========================================
   使い方セクション
   ========================================== */
.usage {
    background: var(--color-white);
    padding: 6rem 0;
}

/* 使い方ヘッダーコンテンツラッパー（スケーリング用） */
.usage-header-content {
    --usage-header-scale: 1;
    transform: scale(var(--usage-header-scale));
    transform-origin: center top;
}

/* 使い方コンテンツラッパー（スケーリング用） */
.usage-content-wrapper {
    --usage-content-scale: 1;
    transform: scale(var(--usage-content-scale));
    transform-origin: left top;
}

.usage-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
    margin-top: 3rem;
}

.usage-image {
    position: sticky;
    top: 2rem;
}

.usage-image img {
    width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: 8px;
}

.usage-content {
}

.usage-steps {
    list-style: none;
    counter-reset: step-counter;
    margin-bottom: 2.5rem;
}

.usage-steps li {
    counter-increment: step-counter;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-black);
    padding: 0.8rem 0;
    padding-left: 2.5rem;
    position: relative;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.usage-steps li:last-child {
    border-bottom: none;
}

.usage-steps li::before {
    content: counter(step-counter);
    position: absolute;
    left: 0;
    top: 0.8rem;
    width: 1.8rem;
    height: 1.8rem;
    background: var(--color-pink);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 700;
}

.usage-params,
.usage-operation-notes {
    background: rgba(252, 237, 227, 0.5);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.usage-params h4,
.usage-operation-notes h4 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 1rem;
}

.usage-params ul {
    list-style: none;
}

.usage-params li {
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--color-gray-dark);
    line-height: 1.8;
    margin-bottom: 0.5rem;
}

.usage-params li strong {
    color: var(--color-black);
}

.usage-operation-notes p {
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--color-gray-dark);
    line-height: 1.8;
    margin-bottom: 0.8rem;
}

.usage-operation-notes p:last-child {
    margin-bottom: 0;
}

/* レスポンシブ */
@media screen and (max-width: 900px) {
    .usage-layout {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .usage-image {
        position: static;
        max-width: 400px;
        margin: 0 auto;
    }

    .usage-title {
        font-size: 2rem;
    }
}

@media screen and (max-width: 768px) {
    .usage .section-header {
        overflow: hidden;
        display: flex;
        justify-content: center;
    }

    /* スケーリングで改行を防ぐ */
    .usage-header-content {
        --usage-header-scale: min(1, calc((100vw - 4rem) / 240px));
        transform: scale(var(--usage-header-scale));
        transform-origin: center top;
    }

    .usage .section-title {
        white-space: nowrap;
        text-align: center;
    }

    .usage .section-subtitle {
        white-space: nowrap;
        text-align: center;
    }

    .usage-content {
        overflow: hidden;
    }

    /* スケーリングで改行を防ぐ */
    .usage-content-wrapper {
        --usage-content-scale: min(1, calc((100vw - 4rem) / 560px));
        transform: scale(var(--usage-content-scale));
        transform-origin: left top;
        width: calc(100% / var(--usage-content-scale));
    }

    .usage-steps {
        width: 100%;
    }

    .usage-steps li {
        white-space: nowrap;
        font-size: 1.1rem;
    }

    .usage-params,
    .usage-operation-notes {
        width: 100%;
    }

    .usage-params h4,
    .usage-operation-notes h4 {
        white-space: nowrap;
        font-size: 1.1rem;
    }

    .usage-params li {
        white-space: nowrap;
        font-size: 1.0rem;
    }

    .usage-operation-notes p {
        white-space: nowrap;
        font-size: 1.0rem;
    }
}

@media screen and (max-width: 600px) {
    .usage {
        padding: 4rem 0;
    }

    /* スケーリングで改行を防ぐ */
    .usage-header-content {
        --usage-header-scale: min(1, calc((100vw - 2rem) / 240px));
    }

    /* スケーリングで改行を防ぐ */
    .usage-content-wrapper {
        --usage-content-scale: min(1, calc((100vw - 2rem) / 560px));
        width: calc(100% / var(--usage-content-scale));
    }

    .usage-title {
        font-size: 1.6rem;
    }
}

/* ==========================================
   症例紹介セクション
   ========================================== */
.results-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
}

.results-grid-two {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.results-grid-two .result-card {
    display: flex;
    flex-direction: column;
}

.results-grid-two .result-comparison {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.results-grid-two .result-comparison-img {
    width: 50%;
    object-fit: cover;
}

.result-card-large {
    background: var(--color-white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(245, 198, 198, 0.15);
    transition: var(--transition);
}

.result-card-large:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(245, 198, 198, 0.25);
}

.result-comparison {
    padding: 1rem;
    background: var(--gradient-pink);
}

.result-comparison-img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.result-card {
    background: var(--color-white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(245, 198, 198, 0.15);
    transition: var(--transition);
}

.result-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(245, 198, 198, 0.25);
}

.result-images {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem;
    background: var(--gradient-pink);
}

.result-image {
    flex: 1;
    position: relative;
}

.result-placeholder {
    min-height: 120px;
    padding: 1.5rem;
}

.image-label {
    position: absolute;
    top: 10px;
    left: 10px;
    background: linear-gradient(135deg, var(--color-pink) 0%, var(--color-beige) 100%);
    color: var(--color-white);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
}

.result-divider {
    color: var(--color-beige);
}

.result-info {
    padding: 1.5rem;
}

.result-info h4 {
    font-size: 1.1rem;
    color: var(--color-black);
    margin-bottom: 0.8rem;
    font-weight: 600;
}

.result-info p {
    font-size: 0.9rem;
    color: var(--color-gray);
    line-height: 1.6;
}

.results-note {
    text-align: center;
    margin-top: 3rem;
    font-size: 0.9rem;
    color: var(--color-gray-light);
    font-style: italic;
}

@media screen and (max-width: 900px) {
    .results-grid-two {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .results-grid-two .result-comparison-img {
        height: 220px;
    }
}

@media screen and (max-width: 600px) {
    .results-grid-two .result-comparison-img {
        height: 250px;
    }
}

/* 画像ズーム可能 */
.zoomable {
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.zoomable:hover {
    transform: scale(1.02);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* ==========================================
   画像モーダル
   ========================================== */
.image-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.image-modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    cursor: pointer;
}

.modal-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    z-index: 10001;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.image-modal.active .modal-content {
    transform: scale(1);
}

.modal-image {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.modal-close {
    position: absolute;
    top: -50px;
    right: 0;
    background: none;
    border: none;
    color: var(--color-white);
    cursor: pointer;
    padding: 10px;
    transition: transform 0.3s ease, opacity 0.3s ease;
    opacity: 0.8;
}

.modal-close:hover {
    transform: scale(1.1);
    opacity: 1;
}

.modal-close svg {
    width: 32px;
    height: 32px;
}

@media screen and (max-width: 768px) {
    .modal-content {
        max-width: 95vw;
    }

    .modal-close {
        top: -45px;
        right: -5px;
    }

    .modal-close svg {
        width: 28px;
        height: 28px;
    }
}

/* ==========================================
   お問い合わせセクション
   ========================================== */
.contact {
    background: var(--gradient-pink) !important;
}

.contact-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 3rem;
}

.contact-info {
    max-width: 700px;
    width: 100%;
}

.contact-info h3 {
    font-size: 2rem;
    color: var(--color-black);
    margin-bottom: 1rem;
    font-weight: 600;
}

.contact-description {
    font-size: 1rem;
    color: var(--color-gray);
    line-height: 1.8;
    margin-bottom: 2.5rem;
}

.company-info-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1.5rem;
    background: var(--color-white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(201, 168, 124, 0.1);
}

.company-info-table th,
.company-info-table td {
    padding: 1rem 1.5rem;
    text-align: left;
    border-bottom: 1px solid rgba(201, 168, 124, 0.15);
    font-size: 1rem;
}

.company-info-table tr:last-child th,
.company-info-table tr:last-child td {
    border-bottom: none;
}

.company-info-table th {
    width: 35%;
    color: var(--color-black);
    font-weight: 600;
    background: rgba(245, 198, 198, 0.15);
}

.company-info-table td {
    color: var(--color-gray);
    background: var(--color-white);
}

@media screen and (max-width: 600px) {
    .company-info-table th,
    .company-info-table td {
        display: block;
        width: 100%;
        padding: 0.8rem 1rem;
    }

    .company-info-table th {
        border-bottom: none;
        padding-bottom: 0.3rem;
    }

    .company-info-table td {
        padding-top: 0.3rem;
    }
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 2.5rem;
}

.contact-method {
    display: flex;
    gap: 1.5rem;
    background: var(--color-white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(201, 168, 124, 0.1);
}

.method-icon {
    color: var(--color-beige);
}

.method-icon svg {
    width: 32px;
    height: 32px;
}

.method-info h4 {
    font-size: 1.1rem;
    color: var(--color-black);
    margin-bottom: 0.8rem;
    font-weight: 600;
}

.phone-number, .email {
    font-size: 1.2rem;
    color: var(--color-beige-dark);
    font-weight: 600;
    margin-bottom: 0.3rem;
}

.business-hours, .response-time {
    font-size: 0.85rem;
    color: var(--color-gray-light);
}

/* LINE QRコード カード */
.contact-method-line {
    display: block;
    padding: 0;
    background: transparent;
    box-shadow: none;
}

.line-qr-card {
    background: linear-gradient(145deg, #ffffff 0%, #faf8f4 100%);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    box-shadow:
        0 10px 40px rgba(201, 168, 124, 0.15),
        0 0 0 1px rgba(201, 168, 124, 0.08);
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
}

.line-qr-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #06C755 0%, #00B341 50%, var(--color-beige) 100%);
}

.line-qr-card:hover {
    transform: translateY(-3px);
    box-shadow:
        0 15px 50px rgba(201, 168, 124, 0.2),
        0 0 0 1px rgba(201, 168, 124, 0.12);
}

.line-qr-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    margin-bottom: 1.5rem;
}

.line-qr-icon {
    width: 28px;
    height: 28px;
    color: #06C755;
}

.line-qr-title {
    font-family: var(--font-shippori-mincho);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--color-black);
    letter-spacing: 0.5px;
}

.line-qr-image-wrapper {
    display: inline-block;
    padding: 1rem;
    background: #ffffff;
    border-radius: 16px;
    box-shadow:
        0 4px 20px rgba(0, 0, 0, 0.06),
        inset 0 0 0 1px rgba(201, 168, 124, 0.1);
    margin-bottom: 1.25rem;
    transition: transform 0.3s ease;
}

.line-qr-card:hover .line-qr-image-wrapper {
    transform: scale(1.02);
}

.line-qr-image {
    width: 160px;
    height: 160px;
    display: block;
    border-radius: 8px;
}

.line-qr-description {
    font-family: var(--font-shippori-mincho);
    font-size: 0.9rem;
    color: var(--color-gray);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.line-qr-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 1.75rem;
    background: linear-gradient(135deg, #06C755 0%, #00B341 100%);
    color: #ffffff;
    font-family: var(--font-shippori-mincho);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: 50px;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(6, 199, 85, 0.3);
    transition: all 0.3s ease;
}

.line-qr-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(6, 199, 85, 0.4);
}

.line-qr-button svg {
    transition: transform 0.3s ease;
}

.line-qr-button:hover svg {
    transform: translateX(3px);
}

/* LINE QR レスポンシブ */
@media screen and (max-width: 768px) {
    .line-qr-card {
        padding: 1.25rem;
        border-radius: 16px;
    }

    .line-qr-image-wrapper {
        padding: 0.75rem;
    }

    .line-qr-image {
        width: 120px;
        height: 120px;
    }

    .line-qr-title {
        font-size: 1.05rem;
    }

    .line-qr-description {
        font-size: 0.85rem;
    }

    .line-qr-button {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
}

/* お問い合わせフォーム */
.contact-form-wrapper {
    margin-top: 3rem;
    background: var(--color-white);
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(201, 168, 124, 0.1);
    max-width: 700px;
    width: 100%;
}

.contact-form-wrapper h3 {
    font-family: var(--font-shippori-mincho);
    font-size: 1.5rem;
    color: var(--color-black);
    margin-bottom: 2rem;
    text-align: center;
    font-weight: 600;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-family: var(--font-shippori-mincho);
    font-size: 0.95rem;
    color: var(--color-black);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group .required {
    color: #e74c3c;
    font-size: 0.85rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    font-family: var(--font-shippori-mincho);
    font-size: 1rem;
    color: var(--color-black);
    background: var(--color-cream);
    border: 1px solid var(--color-beige-light);
    border-radius: 8px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-beige);
    box-shadow: 0 0 0 3px rgba(201, 168, 124, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-gray-light);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.form-submit {
    text-align: center;
    margin-top: 2rem;
}

.submit-btn {
    display: inline-block;
    padding: 1rem 3rem;
    font-family: var(--font-shippori-mincho);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-white);
    background: linear-gradient(135deg, var(--color-beige) 0%, var(--color-beige-dark) 100%);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 5px 20px rgba(201, 168, 124, 0.3);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(201, 168, 124, 0.4);
}

.submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.submit-btn.submitting {
    position: relative;
}

/* フォームメッセージ */
.form-message {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    line-height: 1.6;
    animation: fadeInMessage 0.3s ease;
}

@keyframes fadeInMessage {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-message-success {
    background-color: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
}

.form-message-error {
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}

@media screen and (max-width: 600px) {
    .contact-form-wrapper {
        padding: 2rem 1.5rem;
    }

    .contact-form-wrapper h3 {
        font-size: 1.3rem;
    }

    .form-group input,
    .form-group textarea {
        padding: 0.8rem;
        font-size: 0.95rem;
    }

    .submit-btn {
        width: 100%;
        padding: 1rem 2rem;
    }
}

/* ==========================================
   フッター
   ========================================== */
.footer {
    background: var(--color-black);
    color: var(--color-cream);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-logo h3 {
    font-family: var(--font-accent);
    font-size: 2rem;
    color: var(--color-beige);
    margin-bottom: 1rem;
    letter-spacing: 2px;
}

.footer-logo p {
    font-size: 0.95rem;
    color: var(--color-beige-light);
}

.company-name {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--color-gray-light);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.footer-column h4 {
    font-size: 1.1rem;
    color: var(--color-beige);
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 0.8rem;
}

.footer-column a {
    font-size: 0.9rem;
    color: var(--color-beige-light);
}

.footer-column a:hover {
    color: var(--color-beige);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(245, 198, 198, 0.2);
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--color-gray);
}

/* ==========================================
   LINE公式アカウント フローティングボタン
   ========================================== */
.line-floating-btn {
    position: fixed;
    bottom: 2rem;
    right: calc(2rem + 50px + 0.75rem); /* back-to-topの右余白 + 幅 + 間隔 */
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    z-index: 998;
    animation: lineButtonFadeIn 0.8s ease 1s both;
}

@keyframes lineButtonFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.line-btn-content {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.25rem;
    background: linear-gradient(135deg, #06C755 0%, #00B341 100%);
    border-radius: 50px;
    box-shadow:
        0 4px 20px rgba(6, 199, 85, 0.35),
        0 0 0 1px rgba(255, 255, 255, 0.1) inset,
        0 2px 0 rgba(255, 255, 255, 0.15) inset;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    overflow: hidden;
}

.line-btn-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: left 0.6s ease;
}

.line-floating-btn:hover .line-btn-content::before {
    left: 100%;
}

.line-floating-btn:hover .line-btn-content {
    transform: translateY(-3px) scale(1.03);
    box-shadow:
        0 8px 32px rgba(6, 199, 85, 0.45),
        0 0 0 1px rgba(255, 255, 255, 0.2) inset,
        0 2px 0 rgba(255, 255, 255, 0.2) inset;
}

.line-btn-glow {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50px;
    background: rgba(6, 199, 85, 0.4);
    filter: blur(20px);
    animation: lineGlowPulse 3s ease-in-out infinite;
    z-index: -1;
}

@keyframes lineGlowPulse {
    0%, 100% {
        opacity: 0.5;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.1);
    }
}

.line-icon {
    width: 26px;
    height: 26px;
    color: #ffffff;
    flex-shrink: 0;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.1));
}

.line-btn-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
    color: #ffffff;
    text-align: left;
}

.line-btn-label {
    font-family: var(--font-accent);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.line-btn-sublabel {
    font-family: var(--font-shippori-mincho);
    font-size: 0.7rem;
    font-weight: 400;
    opacity: 0.95;
    letter-spacing: 0.3px;
}

.line-btn-contact {
    display: none;
}

/* モバイル対応 - TOPボタンの左隣に配置 */
@media screen and (max-width: 768px) {
    .line-floating-btn {
        bottom: 1rem;
        right: calc(0.75rem + 42px + 0.5rem); /* back-to-topの右余白 + 幅 + 間隔 */
    }

    .line-btn-content {
        padding: 0.5rem 0.75rem;
        gap: 0.4rem;
    }

    .line-icon {
        width: 20px;
        height: 20px;
    }

    .line-btn-label {
        font-size: 0.8rem;
    }

    .line-btn-sublabel {
        font-size: 0.6rem;
    }

    .line-btn-text {
        display: none;
    }

    .line-btn-contact {
        display: inline;
        font-family: var(--font-accent);
        font-size: 0.75rem;
        font-weight: 600;
        color: #ffffff;
        letter-spacing: 0.5px;
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
        white-space: nowrap;
    }

    .line-btn-glow {
        display: none;
    }
}

/* ==========================================
   トップへ戻るボタン
   ========================================== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--color-pink) 0%, var(--color-beige) 100%);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 5px 20px rgba(245, 198, 198, 0.4);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(245, 198, 198, 0.5);
}

/* モバイル対応 - LINEボタンと横並び */
@media screen and (max-width: 768px) {
    .back-to-top {
        bottom: 1rem;
        right: 0.75rem;
        width: 42px;
        height: 42px;
    }

    .back-to-top svg {
        width: 20px;
        height: 20px;
    }
}

/* ==========================================
   アニメーション用クラス
   ========================================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================
   レスポンシブデザイン
   ========================================== */
@media screen and (max-width: 1024px) {
    .hero-content,
    .concept-content,
    .tech-item,
    .ultrasonic-content,
    .product-intro {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .product-intro {
        padding: 2rem;
    }

    .product-intro-text {
        text-align: center;
    }

    .intro-title::after {
        left: 50%;
        transform: translateX(-50%);
    }

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

    .process-steps,
    .usage-timeline {
        flex-wrap: wrap;
        justify-content: center;
    }

    .process-arrow,
    .timeline-line {
        display: none;
    }

    .process-step,
    .usage-step {
        flex: 0 0 calc(50% - 1rem);
        margin-bottom: 1rem;
    }

    /* ロゴテキストを非表示 */
    .logo h1 {
        display: none;
    }
}

@media screen and (max-width: 768px) {
    .twin-jet-section {
        flex-direction: column;
        padding: 2rem;
        gap: 2rem;
    }

    .twin-jet-image img {
        max-width: 200px;
    }

    .twin-jet-text h3 {
        font-size: 1.5rem;
    }

    .principle-card {
        flex-direction: column;
        text-align: center;
        padding: 2rem;
    }

    .principle-icon {
        margin: 0 auto;
    }

    .principle-card:hover {
        transform: translateY(-5px);
    }

    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }

    .hero-title {
        font-size: 1.5rem;
    }

    .hero-specs {
        flex-wrap: wrap;
        gap: 2rem;
    }

    .spec-number {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 1.6rem;
    }

    .features-grid,
    .benefits-grid,
    .components-grid,
    .results-grid {
        grid-template-columns: 1fr;
    }

    .results-grid-two {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .footer-content,
    .footer-links {
        grid-template-columns: 1fr;
    }

    .process-step,
    .usage-step {
        flex: 0 0 100%;
    }

    .ingredient-list {
        grid-template-columns: 1fr;
    }

    .feature-card,
    .benefit-card {
        padding: 1.5rem;
    }
}