/* ===== グローバルリセットと box-sizing 設定 ===== */
html {
    box-sizing: border-box;
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    text-size-adjust: 100%;
    overflow-x: hidden;
}

*, *:before, *:after {
    box-sizing: inherit;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--body-font);
    line-height: 1.8;
    color: var(--text-color-on-light);
    background-color: var(--base-color-light);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-width: 320px;
    position: relative;
}

/* アルファベットにInterフォントを適用 */
@supports (font-family: 'Inter') {
    * {
        font-family: 'Inter', var(--heading-font), var(--body-font);
    }
    
    h1, h2, h3, h4, h5, h6, p, span, a, li {
        font-family: 'Inter', 'Noto Sans JP', sans-serif !important;
    }
}

.inter-font {
    font-family: 'Inter', sans-serif !important;
}

/* ===== 基本スタイル ===== */
:root {
    /* カラーパレット - 青色系統のグラデーション */
    --base-color-dark: #0f0f1a;
    --base-color-light: #FFFFFF;
    --base-color-offwhite: #f8f9fc;

    --main-color-blue: #3b82f6;
    --main-color-blue-darker: #2563eb;
    --main-color-blue-lighter: #60a5fa;

    --main-color-purple: #3b82f6;
    --main-color-purple-darker: #2563eb;
    --main-color-purple-lighter: #60a5fa;

    --accent-color-cyan: #06b6d4;
    --accent-color-cyan-darker: #0891b2;
    --accent-color-yellow: #f59e0b;
    --accent-color-yellow-darker: #d97706;
    --accent-color-red: #ef4444;

    /* グラデーション */
    --gradient-primary: linear-gradient(135deg, #4f46e5 0%, #3b82f6 50%, #60a5fa 100%);
    --gradient-dark: linear-gradient(135deg, #0f0f1a 0%, #1e1b4b 50%, #312e81 100%);
    --gradient-accent: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
    --gradient-hero: linear-gradient(135deg, rgba(0, 0, 0, 0.75) 0%, rgba(0, 0, 0, 0.65) 50%, rgba(0, 0, 0, 0.6) 100%);

    /* テキストカラー */
    --text-color-on-light: #1e1b4b;
    --text-color-on-light-muted: #4b5563;
    --text-color-on-dark: #f1f5f9;
    --text-color-on-dark-muted: #cbd5e1;

    /* その他 */
    --white: #FFFFFF;
    --black: #000000;
    --border-color-light: #e2e8f0;
    --card-shadow: 0 4px 20px rgba(79, 70, 229, 0.1);
    --card-shadow-hover: 0 8px 30px rgba(79, 70, 229, 0.2);

    /* フォント */
    --heading-font: 'Montserrat', 'Noto Sans JP', sans-serif;
    --body-font: 'Noto Sans JP', sans-serif;
}

.container {
    width: 90%;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 15px;
    padding-right: 15px;
}

.section-padding {
    padding-top: 5rem;
    padding-bottom: 5rem;
}

.section-padding-deep {
    padding-top: 7rem;
    padding-bottom: 7rem;
}

/* 各セクションで overflow を制御 */
.hero-section,
.problem-section,
.solution-overview-section,
.comparison-section,
.products-section,
.timeline-section,
.faq-section,
.cta-section,
.contact-section,
.footer-section {
    overflow-x: hidden;
    width: 100%;
}

/* 背景色ユーティリティクラス */
.section-bg-offwhite {
    background-color: var(--base-color-offwhite);
}

.section-bg-dark {
    background: var(--gradient-dark);
    color: var(--text-color-on-dark);
}

.section-bg-dark .section-title {
    color: var(--white);
}

.section-bg-dark .section-title .highlight-alt {
    color: var(--accent-color-cyan);
}

.section-title {
    font-family: var(--heading-font);
    font-size: 2.6rem;
    font-weight: 700;
    color: var(--main-color-blue);
    text-align: center;
    margin-bottom: 3.5rem;
    line-height: 1.4;
}

.section-title .highlight,
.section-title .highlight-alt,
.hero-section h1 .highlight {
    color: var(--accent-color-yellow);
}

.hero-section h1 .highlight-sub {
    color: var(--accent-color-yellow);
    font-size: 0.7em;
    display: block;
    margin-top: 0.5rem;
}

.section-title .blue-highlight strong {
    color: var(--main-color-blue);
    font-weight: 700;
    border-bottom: 3px solid var(--main-color-blue-lighter);
    padding-bottom: 0.1em;
    display: inline-block;
    white-space: nowrap;
}

.white-text {
    color: var(--text-color-on-dark) !important;
}

.dark-text {
    color: var(--text-color-on-light) !important;
}

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

.desktop-only {
    display: inline;
}

.mobile-only {
    display: none;
}

/* ===== ボタン共通スタイル ===== */
.btn {
    display: inline-block;
    padding: 0.9rem 2.2rem;
    font-family: var(--heading-font);
    font-weight: 600;
    font-size: 1rem;
    border-radius: 50px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
    border: none;
    text-decoration: none;
    letter-spacing: 0.5px;
    box-shadow: var(--card-shadow);
}

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

.btn-primary:hover, .btn-primary:focus {
    box-shadow: 0 6px 25px rgba(79, 70, 229, 0.4);
    transform: translateY(-3px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover, .btn-secondary:focus {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--white);
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.15);
}

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

.btn-accent:hover, .btn-accent:focus {
    box-shadow: 0 6px 25px rgba(6, 182, 212, 0.4);
    transform: translateY(-3px);
}

.btn-large {
    padding: 1.1rem 2.8rem;
    font-size: 1.05rem;
}

.btn i {
    margin-right: 0.5rem;
}

/* ===== フローティングメニュー ===== */
.floating-menu {
    position: fixed;
    bottom: 80px;
    right: 20px;
    z-index: 9999;
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 50%, #b91c1c 100%);
    color: white;
    padding: 1rem;
    border-radius: 12px;
    box-shadow: 0 4px 25px rgba(239, 68, 68, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 140px;
    height: 140px;
    text-align: center;
    animation: slideInUp 0.5s ease-out 4.5s both;
}

.floating-menu:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 25px rgba(211, 47, 47, 0.8);
}

.floating-menu.hidden {
    animation: slideOutDown 0.3s ease-in forwards;
    pointer-events: none;
}

.floating-menu-content {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    align-items: center;
}

.floating-title {
    font-size: 0.85rem;
    font-weight: 700;
    margin: 0;
    line-height: 1.5;
}

.floating-subtitle {
    font-size: 0.8rem;
    margin: 0;
    opacity: 0.95;
    line-height: 1.4;
}

.floating-arrow {
    font-size: 1.8rem;
    color: white;
    text-decoration: none;
    font-weight: bold;
    margin-top: 0.3rem;
}

.floating-menu:hover .floating-arrow {
    animation: arrowBounce 0.6s ease infinite;
}

@keyframes arrowBounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(5px);
    }
}

@keyframes slideInUp {
    from {
        bottom: -200px;
        opacity: 0;
    }
    to {
        bottom: 80px;
        opacity: 1;
    }
}

@keyframes slideOutDown {
    from {
        bottom: 80px;
        opacity: 1;
    }
    to {
        bottom: -200px;
        opacity: 0;
    }
}

/* ===== ヘッダー ===== */
.subpage-header.index-header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    background-color: transparent;
    box-shadow: none;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
    z-index: 1000;
    padding: 1rem 0;
}

.subpage-header.index-header.scrolled {
    background: var(--gradient-dark);
    box-shadow: 0 2px 20px rgba(79, 70, 229, 0.2);
    position: fixed;
}

.subpage-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-logo-group {
    display: flex;
    align-items: center;
}

.company-logo-text {
    font-family: 'Montserrat', 'Noto Sans JP', sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
}

.subpage-logo-link {
    text-decoration: none;
}

.subpage-nav {
    display: flex;
    gap: 1.5rem;
}

.subpage-nav a {
    color: var(--white);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: color 0.3s ease;
    position: relative;
}

.subpage-nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color-yellow);
    transition: width 0.3s ease;
}

.subpage-nav a:hover::after,
.subpage-nav a.active::after {
    width: 100%;
}

.subpage-nav a:hover,
.subpage-nav a.active {
    color: var(--accent-color-yellow);
}

/* ===== ヒーローセクション ===== */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-dark);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

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

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-hero);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: var(--white);
    padding: 2rem 1rem;
}

.hero-main-logo-container {
    margin-bottom: 2rem;
}



/* アクセントボックス */
.hero-accent-box {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(135deg, var(--main-color-purple), var(--main-color-purple-darker));
    padding: 0.35rem 0.8rem;
    border-radius: 50px;
    margin-bottom: 2rem;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.5);
    border: 2px solid rgba(255, 255, 255, 0.3);
    transform: scale(0.4);
}

.accent-text {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 0.05em;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
    white-space: nowrap;
}

.hero-section h1 {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 2rem;
    line-height: 1.5;
    text-shadow: 0 3px 10px rgba(0,0,0,0.5);
}

.hero-section h1 .highlight {
    color: var(--accent-color-cyan);
    font-size: 1.1em;
}

.hero-section h1 .main-copy {
    display: block;
    font-size: 0.8em;
    margin-top: 0.5rem;
}

/* 3年120%回収バッジ用のアイコンスタイル */
.hero-badge i.return-icon {
    color: var(--accent-color-cyan);
}

/* GPUサーバー投資のバウンスアニメーション */
/* バウンステキストアニメーション */
.bounce-text {
    display: inline-block;
}

/* AOS完了後にバウンス開始（AOS duration 800ms + delay 300ms = 1100ms完了） */
#gpuText {
    animation: bounceOnce 0.1s ease-out 2.2s both;
}

#depreciationText {
    animation: bounceOnce 0.1s ease-out 2.9s both;
}

#taxText {
    animation: bounceOnce 0.1s ease-out 3.5s both;
}

@keyframes bounceOnce {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
    100% {
        transform: translateY(0);
    }
}

/* バッジ */
.hero-badges {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.hero-badge {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--white);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

.hero-badge i {
    font-size: 1.2em;
    color: var(--main-color-purple-lighter);
}

.hero-badge-return {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.25), rgba(59, 130, 246, 0.25));
    border: 2px solid var(--accent-color-cyan);
    color: var(--accent-color-cyan);
    font-weight: 700;
    box-shadow: 0 2px 10px rgba(6, 182, 212, 0.3);
}

.hero-cta {
    margin-bottom: 3rem;
    font-size: 1.2rem;
    padding: 1.2rem 3rem;
}

/* スクロール誘導アニメーション */
.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    animation: fadeInOut 2s ease-in-out infinite;
}

.scroll-text {
    font-size: 0.9rem;
    color: var(--white);
    opacity: 0.8;
    margin: 0;
}

.scroll-arrow {
    display: flex;
    flex-direction: column;
    gap: -8px;
    animation: bounce 2s ease-in-out infinite;
}

.scroll-arrow i {
    font-size: 1.5rem;
    color: var(--accent-color-yellow);
    line-height: 0.6;
}

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

@keyframes fadeInOut {
    0%, 100% {
        opacity: 0.6;
    }
    50% {
        opacity: 1;
    }
}

/* ===== こんなお悩みありませんか？セクション ===== */
.problems-section {
    background: linear-gradient(to bottom, var(--base-color-offwhite), var(--white));
    padding: 4rem 0;
}

.problems-section .section-title {
    margin-bottom: 2rem;
}

.yellow-highlight {
    color: var(--accent-color-yellow);
    text-shadow: 0 2px 8px rgba(255, 193, 7, 0.3);
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 2rem;
}

.problem-card {
    background: white;
    padding: 1.5rem 1.2rem;
    border-radius: 10px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    text-align: center;
    transition: all 0.3s ease;
    border-top: 3px solid transparent;
}

.problem-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow-hover);
    border-top-color: var(--main-color-purple);
}

.problem-icon {
    width: 55px;
    height: 55px;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(59, 130, 246, 0.15));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: var(--main-color-purple);
}

.problem-card h3 {
    font-size: 1rem;
    color: var(--text-color-on-light);
    margin-bottom: 0.7rem;
    font-weight: 700;
    line-height: 1.4;
}

.problem-card p {
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--text-color-on-light-muted);
    margin: 0;
}

.problems-cta {
    text-align: center;
    padding: 2.5rem 2rem;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.12), rgba(59, 130, 246, 0.18));
    border-radius: 16px;
    margin-top: 2.5rem;
    border: 2px solid rgba(59, 130, 246, 0.3);
    box-shadow: 0 8px 32px rgba(59, 130, 246, 0.15);
}

/* 解決メッセージの強調スタイル */
.problems-solution-box {
    margin-bottom: 1.5rem;
}

.problems-solution-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--main-color-blue);
    line-height: 1.6;
    margin: 0;
}

.solution-highlight {
    display: inline-block;
    background: linear-gradient(135deg, var(--main-color-purple), var(--main-color-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.8rem;
    font-weight: 800;
    position: relative;
    padding: 0 0.2em;
}

.solution-highlight::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color-cyan), var(--main-color-purple));
    border-radius: 2px;
}

.problems-message {
    font-size: 1.15rem;
    color: var(--main-color-blue);
    margin-bottom: 1.5rem;
    font-weight: 600;
    line-height: 1.6;
}

.problems-message i {
    font-size: 1.6rem;
    color: var(--accent-color-cyan);
    animation: arrowBounce 1.5s ease-in-out infinite;
}

.problems-message strong {
    color: var(--main-color-purple);
}

/* ===== 問題提起セクション ===== */
.problem-section {
    background-color: var(--base-color-offwhite);
}

.problem-list {
    list-style: none;
    max-width: 800px;
    margin: 0 auto 3rem;
}

.problem-list li {
    background: white;
    padding: 1.5rem 2rem;
    margin-bottom: 1.5rem;
    border-left: 5px solid var(--accent-color-red);
    border-radius: 8px;
    box-shadow: var(--card-shadow);
    display: flex;
    align-items: center;
    gap: 1.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.problem-list li:hover {
    transform: translateX(10px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}

.problem-icon {
    font-size: 2.5rem;
    color: var(--accent-color-red);
    min-width: 50px;
}

.problem-list li span {
    font-size: 1.1rem;
    line-height: 1.6;
}

.problem-solution-link {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-color-on-light-muted);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ===== ソリューション概要セクション ===== */
.solution-overview-intro {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--main-color-blue);
    margin-bottom: 3rem;
}

.solution-steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.step-card {
    background: white;
    padding: 2rem 1.5rem;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.step-card:hover {
    border-color: var(--main-color-blue);
    box-shadow: 0 6px 25px rgba(0, 123, 255, 0.15);
    transform: translateY(-5px);
}

.step-card-icon {
    font-size: 3rem;
    color: var(--main-color-blue);
    margin-bottom: 1rem;
}

.step-card-text {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-color-on-light);
    line-height: 1.6;
}

/* ===== 比較表セクション（新デザイン） ===== */
.comparison-table-wrapper {
    overflow-x: auto;
    box-shadow: var(--card-shadow);
    border-radius: 12px;
}

.comparison-table-new {
    width: 100%;
    border-collapse: collapse;
    background: white;
    min-width: 700px;
}

.comparison-table-new thead th {
    padding: 1.2rem 0.8rem;
    text-align: center;
    vertical-align: bottom;
    border-bottom: 2px solid var(--border-color-light);
}

.comparison-table-new thead th.highlight-col {
    background: linear-gradient(135deg, var(--main-color-blue), var(--main-color-purple));
    color: white;
}

.comparison-table-new .col-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: #666;
}

.comparison-table-new thead th.highlight-col .col-icon {
    color: white;
}

.comparison-table-new .col-title {
    font-size: 0.9rem;
    font-weight: 700;
    line-height: 1.4;
}

.comparison-table-new tbody td {
    padding: 1rem 0.8rem;
    text-align: center;
    border-bottom: 1px solid var(--border-color-light);
    font-size: 0.9rem;
    vertical-align: middle;
    line-height: 1.5;
}

.comparison-table-new tbody td.row-header {
    background: #f8f9fa;
    font-weight: 600;
    text-align: left;
    padding-left: 1.2rem;
    white-space: nowrap;
}

.comparison-table-new tbody td.highlight-col {
    background: rgba(79, 70, 229, 0.08);
    color: var(--main-color-blue);
    font-weight: 600;
}

.comparison-table-new tbody td.highlight-col strong {
    color: var(--main-color-purple);
    font-size: 1rem;
}

.comparison-table-new tbody td small {
    display: block;
    font-size: 0.75rem;
    color: var(--text-color-on-light-muted);
    margin-top: 0.3rem;
}

.comparison-table-new tbody tr:nth-child(even) {
    background-color: rgba(0,0,0,0.02);
}

.comparison-table-new tbody tr:nth-child(even) td.highlight-col {
    background: rgba(79, 70, 229, 0.1);
}

.comparison-table-new tbody tr.highlight-row {
    background: linear-gradient(90deg, rgba(6, 182, 212, 0.1), rgba(16, 185, 129, 0.1));
}

.comparison-table-new tbody tr.highlight-row td.highlight-col {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(16, 185, 129, 0.2));
}

.comparison-table-new tbody tr.highlight-row td.highlight-col strong {
    color: var(--accent-color-cyan);
    font-size: 1.2rem;
}

/* ===== 商品セクション ===== */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.product-card {
    background: white;
    padding: 2.5rem 2rem;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.product-card:hover {
    border-color: var(--accent-color-yellow);
    box-shadow: 0 8px 30px rgba(255, 193, 7, 0.2);
    transform: translateY(-8px);
}

.product-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
}

.product-card h3 {
    font-size: 1.6rem;
    color: var(--white);
    margin-bottom: 0.8rem;
}

.product-card h3 .small-text {
    font-size: 0.8rem;
    display: block;
    margin-top: 0.3rem;
    opacity: 0.9;
}

.product-description {
    color: var(--text-color-on-dark-muted);
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.product-features {
    list-style: none;
    text-align: left;
    margin: 1.5rem 0;
}

.product-features li {
    padding: 0.6rem 0;
    color: var(--text-color-on-dark);
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.product-features li i {
    color: var(--accent-color-yellow);
    font-size: 1.3rem;
}

.product-badge {
    display: inline-block;
    background: var(--accent-color-yellow);
    color: var(--text-color-on-light);
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    font-weight: 700;
    margin-top: 1rem;
    font-size: 0.9rem;
}

/* ===== タイムラインセクション ===== */
.timeline-content {
    max-width: 900px;
    margin: 0 auto;
}

.timeline-box {
    background: white;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    margin-bottom: 3rem;
}

.warning-box {
    border-left: 5px solid var(--accent-color-yellow);
}

.timeline-box h3 {
    color: var(--accent-color-yellow);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.timeline-box h3 i {
    font-size: 1.8rem;
}

.timeline-box p {
    margin-bottom: 1rem;
    line-height: 1.8;
}

.timeline-box ul {
    margin-left: 1.5rem;
    margin-top: 1rem;
}

.timeline-box ul li {
    margin-bottom: 0.6rem;
}

.timeline-guide h3 {
    font-size: 1.6rem;
    color: var(--main-color-blue);
    margin-bottom: 2rem;
    text-align: center;
}

.timeline-items {
    display: grid;
    gap: 1.5rem;
}

.timeline-item {
    background: white;
    padding: 1.5rem 2rem;
    border-radius: 8px;
    box-shadow: var(--card-shadow);
    display: flex;
    gap: 1.5rem;
    align-items: center;
    border-left: 5px solid var(--main-color-blue);
}

.timeline-item.alert {
    border-left-color: var(--accent-color-red);
    background: #fff3cd;
}

.timeline-days {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--main-color-blue);
    min-width: 140px;
}

.timeline-item.alert .timeline-days {
    color: var(--accent-color-red);
}

.timeline-desc {
    font-size: 1rem;
    line-height: 1.6;
}

/* ===== FAQセクション ===== */
.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    margin-bottom: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--card-shadow);
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.faq-question {
    padding: 1.5rem 2rem;
    background: #f8f9fa;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--main-color-blue);
    transition: background 0.3s ease;
}

.faq-question:hover {
    background: #e9ecef;
}

.faq-question i:first-child {
    font-size: 1.5rem;
    color: var(--main-color-blue);
}

.faq-toggle {
    margin-left: auto;
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.faq-item.open .faq-toggle {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 2rem;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    color: var(--text-color-on-light-muted);
    line-height: 1.8;
}

.faq-item.open .faq-answer {
    padding: 1.5rem 2rem;
    max-height: 500px;
}

/* FAQ 常に開いた状態 */
.faq-list-open .faq-item {
    cursor: default;
}

.faq-list-open .faq-question {
    cursor: default;
}

.faq-list-open .faq-question:hover {
    background: #f8f9fa;
}

.faq-list-open .faq-answer {
    padding: 1.5rem 2rem;
    max-height: none;
}

/* ===== CTAセクション ===== */
.cta-highlight-box {
    background: rgba(255, 255, 255, 0.08);
    border: 2px solid var(--accent-color-cyan);
    border-radius: 15px;
    padding: 2rem 2.5rem;
    margin-bottom: 2.5rem;
    text-align: center;
}

.cta-highlight-text {
    font-size: 1.4rem;
    color: var(--white);
    margin-bottom: 1rem;
}

.cta-badge {
    display: inline-block;
    background: var(--gradient-accent);
    color: var(--white);
    padding: 0.3rem 1rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 700;
    margin-right: 0.8rem;
}

.cta-description {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-color-on-dark);
}

.cta-note {
    display: block;
    font-size: 0.9rem;
    margin-top: 0.8rem;
    opacity: 0.85;
}

.cta-products {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.cta-product-card {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.cta-product-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.cta-product-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--white);
}

.cta-product-card h4 {
    font-size: 1.1rem;
    color: var(--white);
    margin-bottom: 0.5rem;
}

.cta-product-price {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent-color-cyan);
    margin-bottom: 0.3rem;
}

.cta-product-desc {
    font-size: 0.85rem;
    color: var(--text-color-on-dark-muted);
}

.cta-text {
    font-size: 1.2rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 2rem;
    line-height: 1.8;
    color: var(--text-color-on-dark);
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.cta-info {
    text-align: center;
    color: var(--text-color-on-dark-muted);
}

.cta-info p {
    margin-bottom: 0.5rem;
}

/* ===== お問い合わせフォーム ===== */
.contact-form {
    max-width: 700px;
    margin: 0 auto;
    background: white;
    padding: 3rem 2.5rem;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

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

.form-group label {
    display: block;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--main-color-blue);
}

.required {
    color: var(--accent-color-red);
}

.form-hint {
    font-size: 0.8rem;
    color: var(--text-color-on-light-muted);
    margin-top: 0.4rem;
    font-weight: 400;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.9rem 1.2rem;
    border: 2px solid var(--border-color-light);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--main-color-blue);
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    cursor: pointer;
    font-weight: 400;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    cursor: pointer;
}

.submit-btn {
    width: 100%;
    margin-top: 1rem;
}

.form-notice {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.9rem;
    color: var(--text-color-on-light-muted);
    line-height: 1.6;
}

/* ===== フッター ===== */
.footer-section {
    background: var(--gradient-dark);
    color: var(--text-color-on-dark);
    padding: 3rem 0 1.5rem;
}

.footer-content {
    text-align: center;
}

.footer-content h3 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    color: var(--white);
}

.footer-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto 2rem;
    text-align: left;
}

.footer-office h4 {
    color: var(--accent-color-yellow);
    margin-bottom: 0.8rem;
}

.footer-office p {
    line-height: 1.8;
    color: var(--text-color-on-dark-muted);
}

.footer-contact {
    margin: 2rem 0;
}

.footer-contact p {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.footer-links {
    margin: 2rem 0;
}

.footer-links a {
    color: var(--text-color-on-dark-muted);
    text-decoration: none;
    margin: 0 0.5rem;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--accent-color-yellow);
}

.footer-copyright {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    color: var(--text-color-on-dark-muted);
}

/* ===== なぜ今GPUサーバー投資をすべきなのかセクション ===== */
.why-now-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.why-now-box {
    background: white;
    padding: 2.5rem 2rem;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    text-align: center;
    transition: all 0.3s ease;
}

.why-now-box:hover {
    box-shadow: 0 8px 25px rgba(0, 123, 255, 0.15);
    transform: translateY(-5px);
}

.why-now-icon {
    font-size: 3.5rem;
    color: var(--main-color-purple);
    margin-bottom: 1.5rem;
}

.why-now-box h3 {
    font-size: 1.4rem;
    color: var(--main-color-blue);
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.why-now-box p {
    line-height: 1.8;
    color: var(--text-color-on-light-muted);
}

.why-now-box p.data-source {
    font-size: 0.75rem;
    color: var(--text-color-on-light-muted);
    opacity: 0.7;
    margin-top: 0.8rem;
    padding-top: 0.5rem;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

/* セクションイントロ */
.section-intro {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-color-on-light-muted);
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
}

/* 概要コンテンツ */
.about-content {
    display: grid;
    gap: 3rem;
    margin-bottom: 4rem;
    align-items: center;
}

.about-video-section {
    grid-template-columns: 1fr 1fr;
}

.about-image-section {
    grid-template-columns: 1fr 1fr;
}

.about-video {
    position: relative;
    width: 100%;
}

.video-wrapper {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    background: #000;
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100% !important;
    height: 100% !important;
    border: none;
    display: block;
}

.about-text {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.about-subtitle {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--main-color-blue);
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.about-text .lead {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color-on-light);
    line-height: 1.8;
}

.about-text p {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-color-on-light-muted);
}

.about-text p strong {
    color: var(--main-color-blue);
    font-weight: 700;
}

.about-text sup {
    font-size: 0.7em;
    vertical-align: super;
}

.source-note {
    font-size: 0.85rem;
    color: var(--text-color-on-light-muted);
    opacity: 0.8;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color-light);
}

.about-image {
    position: relative;
}

.machine-image {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    object-fit: cover;
}

/* 数字強調スタイル */
.highlight-number {
    display: inline-block;
    background: linear-gradient(135deg, var(--main-color-purple), var(--accent-color-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.15em;
    font-weight: 700;
}

.market-data {
    background: white;
    padding: 3rem 2rem;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    margin-top: 3rem;
}

.market-data h3 {
    text-align: center;
    font-size: 1.6rem;
    color: var(--main-color-blue);
    margin-bottom: 2.5rem;
}

.market-chart {
    display: flex;
    justify-content: space-around;
    align-items: flex-end;
    height: 350px;
    gap: 1.5rem;
    padding: 0 2rem;
}

.chart-bar {
    flex: 1;
    background: linear-gradient(135deg, var(--main-color-blue-lighter) 0%, var(--main-color-blue) 100%);
    border-radius: 8px 8px 0 0;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1rem 0.5rem;
    transition: all 0.3s ease;
}

.chart-bar:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 123, 255, 0.3);
}

.chart-bar.active {
    background: linear-gradient(135deg, var(--accent-color-yellow) 0%, var(--accent-color-yellow-darker) 100%);
}

.chart-bar .year {
    display: block;
    position: absolute;
    bottom: -40px;
    left: 50%;
    transform: translateX(-50%);
    font-weight: 700;
    color: var(--text-color-on-light);
    white-space: nowrap;
}

.chart-bar .value {
    display: block;
    font-weight: 700;
    font-size: 1.1rem;
    color: white;
    text-align: center;
    margin-bottom: 0.5rem;
}

/* ===== メリットセクション（アコーディオン） ===== */
.merits-accordion {
    max-width: 900px;
    margin: 0 auto 2.5rem;
}

.merit-accordion-item {
    background: white;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    margin-bottom: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.merit-accordion-item:hover {
    box-shadow: 0 8px 25px rgba(79, 70, 229, 0.15);
}

.merit-accordion-header {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.2rem 1.5rem;
    background: white;
    border: none;
    cursor: pointer;
    text-align: left;
    transition: all 0.3s ease;
}

.merit-accordion-item.active .merit-accordion-header {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.05), rgba(59, 130, 246, 0.08));
}

.merit-num {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--main-color-purple), var(--main-color-blue));
    color: white;
    font-size: 0.85rem;
    font-weight: 700;
    border-radius: 50%;
    flex-shrink: 0;
}

.merit-title {
    flex: 1;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color-on-light);
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.merit-title i {
    font-size: 1.3rem;
    color: var(--main-color-purple);
}

.merit-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: rgba(79, 70, 229, 0.1);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.merit-toggle i {
    font-size: 1.2rem;
    color: var(--main-color-purple);
    transition: transform 0.3s ease;
}

.merit-accordion-item.active .merit-toggle {
    background: var(--main-color-purple);
}

.merit-accordion-item.active .merit-toggle i {
    color: white;
    transform: rotate(180deg);
}

.merit-accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
    padding: 0 1.5rem;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.03), rgba(59, 130, 246, 0.05));
}

.merit-accordion-item.active .merit-accordion-content {
    max-height: 2000px;
    padding: 1rem 1.5rem 1.5rem;
}

.merit-accordion-content p {
    line-height: 1.8;
    color: var(--text-color-on-light-muted);
    margin-bottom: 1rem;
}

.merit-accordion-content sup {
    font-size: 0.7em;
    vertical-align: super;
}

.merit-accordion-content .merit-process-box,
.merit-accordion-content .merit-safety-box,
.merit-accordion-content .merit-simulation-box,
.merit-accordion-content .merit-delegation-box,
.merit-accordion-content .merit-stats-box {
    margin-top: 1.5rem;
    margin-bottom: 1rem;
}

.merit-list {
    list-style: none;
    margin-top: 0.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.5rem;
}

.merit-list li {
    padding: 0.3rem 0;
    color: var(--text-color-on-light-muted);
    font-size: 0.95rem;
}

/* メリットCTA */
.merits-cta {
    text-align: center;
    margin-top: 2rem;
}

/* ===== 新しいメリットセクション（リスト形式） ===== */
.merits-intro {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-color-on-light-muted);
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
}

.merits-list {
    max-width: 1000px;
    margin: 0 auto;
}

.merit-item {
    background: white;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    margin-bottom: 2rem;
    padding: 2.5rem;
    transition: all 0.3s ease;
}

.merit-item:hover {
    box-shadow: var(--card-shadow-hover);
    transform: translateY(-2px);
}

.merit-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color-light);
}

.merit-number {
    display: inline-block;
    background: var(--gradient-primary);
    color: white;
    font-size: 0.9rem;
    font-weight: 700;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    margin-bottom: 0.8rem;
}

.merit-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--main-color-blue);
    line-height: 1.4;
    margin: 0;
}

.merit-content {
    line-height: 1.8;
    color: var(--text-color-on-light-muted);
}

.merit-content p {
    margin-bottom: 1.2rem;
}

.merit-content p:last-child {
    margin-bottom: 0;
}

.merit-process-box,
.merit-safety-box,
.merit-simulation-box,
.merit-delegation-box {
    background: var(--base-color-offwhite);
    border-left: 4px solid var(--main-color-blue);
    padding: 1.5rem;
    border-radius: 8px;
    margin-top: 1.5rem;
}

.merit-process-box h4,
.merit-safety-box h4,
.merit-simulation-box h4,
.merit-delegation-box h4 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--main-color-blue);
    margin-bottom: 1rem;
}

.merit-process-list {
    list-style: decimal;
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

.merit-process-list li {
    margin-bottom: 0.8rem;
    color: var(--text-color-on-light-muted);
    line-height: 1.6;
}

.merit-note {
    font-size: 0.9rem;
    color: var(--text-color-on-light-muted);
    opacity: 0.8;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color-light);
}

.merit-stats-box {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin: 2rem 0;
}

.merit-stat-item {
    background: var(--gradient-primary);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--card-shadow);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

.merit-safety-list,
.merit-simulation-list,
.merit-delegation-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.merit-safety-list li,
.merit-simulation-list li,
.merit-delegation-list li {
    padding: 0.6rem 0;
    color: var(--text-color-on-light-muted);
    line-height: 1.6;
    border-bottom: 1px solid var(--border-color-light);
}

.merit-safety-list li:last-child,
.merit-simulation-list li:last-child,
.merit-delegation-list li:last-child {
    border-bottom: none;
}

.merit-simulation-list li {
    font-weight: 600;
    color: var(--text-color-on-light);
}

/* ===== 投資スキームセクション（横一列） ===== */
.scheme-steps-horizontal {
    display: flex;
    align-items: stretch;
    justify-content: center;
    gap: 0;
    margin-bottom: 3rem;
    overflow-x: auto;
    padding: 1rem 0;
}

.scheme-step-h {
    flex: 1;
    min-width: 160px;
    max-width: 200px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 1.5rem 1rem;
    border-radius: 12px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.scheme-step-h:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.scheme-step-h.highlight-step-h {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.4), rgba(59, 130, 246, 0.5));
    border: 2px solid var(--accent-color-cyan);
    box-shadow: 0 0 25px rgba(6, 182, 212, 0.3);
}

.step-num-h {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--accent-color-cyan), var(--main-color-purple));
    color: white;
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: 50%;
    margin-bottom: 0.8rem;
}

.scheme-step-h h4 {
    font-size: 0.95rem;
    color: white;
    margin-bottom: 0.4rem;
    font-weight: 600;
    line-height: 1.4;
}

.scheme-step-h p {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
    line-height: 1.4;
}

.scheme-arrow-h {
    display: flex;
    align-items: center;
    padding: 0 0.5rem;
    color: var(--accent-color-cyan);
    font-size: 1.5rem;
}

/* 役割分担 */
.scheme-roles {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.scheme-role-box {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.scheme-role-box h4 {
    color: var(--accent-color-cyan);
    font-size: 1.15rem;
    margin-bottom: 1.2rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-weight: 600;
}

.scheme-role-box h4 i {
    font-size: 1.4rem;
}

.scheme-role-box ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.scheme-role-box li {
    padding: 0.6rem 0;
    padding-left: 1.8rem;
    position: relative;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.95rem;
    line-height: 1.5;
}

.scheme-role-box li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color-cyan);
    font-weight: 700;
}

.role-note {
    display: inline-block;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
    margin-left: 0.3rem;
}

/* ===== シミュレーションセクション（Chartist対応） ===== */

/* 入力エリア */
.sim-input-area {
    max-width: 350px;
    margin: 0 auto 2rem;
}

.sim-input-box {
    background: white;
    padding: 1.5rem;
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    text-align: center;
}

.sim-input-box label {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color-on-light);
    margin-bottom: 1rem;
}

.sim-input-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 0.8rem;
}

    .sim-btn-minus,
    .sim-btn-plus {
        width: 48px;
        height: 48px;
        min-width: 48px;
        min-height: 48px;
        border: none;
        border-radius: 50%;
        font-size: 1.5rem;
        font-weight: 700;
        cursor: pointer;
        transition: all 0.2s ease;
        background: linear-gradient(135deg, var(--main-color-purple), var(--main-color-blue));
        color: white;
        display: flex;
        align-items: center;
        justify-content: center;
    }

.sim-btn-minus:hover,
.sim-btn-plus:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.4);
}

.sim-number-input {
    width: 70px;
    height: 44px;
    border: 2px solid var(--border-color-light);
    border-radius: 10px;
    font-size: 1.4rem;
    font-weight: 700;
    text-align: center;
    color: var(--main-color-purple);
    appearance: textfield;
    -moz-appearance: textfield;
}

.sim-number-input::-webkit-outer-spin-button,
.sim-number-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
}

.sim-number-input:focus {
    outline: none;
    border-color: var(--main-color-purple);
}

.sim-price-per-unit {
    font-size: 0.85rem;
    color: var(--text-color-on-light-muted);
    margin: 0;
}

.sim-price-per-unit strong {
    color: var(--main-color-purple);
}

/* セクションブロック */
.sim-section-block {
    background: white;
    padding: 1.5rem;
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    margin-bottom: 1.5rem;
}

.sim-section-block.profit {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.05), rgba(59, 130, 246, 0.08));
}

.sim-section-block.monthly {
    background: var(--base-color-offwhite);
}

.sim-section-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--main-color-purple);
    margin: 0 0 0.5rem;
}

.sim-section-title i {
    font-size: 1.3rem;
}

.sim-section-subtitle {
    font-size: 0.85rem;
    color: var(--text-color-on-light-muted);
    margin: 0 0 1.5rem;
}

/* 節税フロー */
.sim-tax-flow {
    display: flex;
    align-items: stretch;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.sim-tax-step {
    flex: 1;
    background: var(--base-color-offwhite);
    padding: 1.5rem 1rem;
    border-radius: 12px;
    text-align: center;
}

.sim-tax-step.highlight {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.18), rgba(16, 185, 129, 0.18));
    border: 3px solid var(--accent-color-cyan);
    box-shadow: 0 5px 20px rgba(6, 182, 212, 0.2);
}

.sim-step-label {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-color-on-light);
    margin-bottom: 1rem;
}

.sim-step-value {
    margin-bottom: 0.5rem;
}

.sim-step-value.highlight .sim-big-num {
    color: var(--accent-color-cyan);
}

.sim-big-num {
    font-size: 2rem;
    font-weight: 700;
    color: var(--main-color-purple);
}

.sim-unit {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color-on-light);
}

.sim-step-detail {
    font-size: 0.8rem;
    color: var(--text-color-on-light-muted);
    margin: 0;
}

/* フロー矢印 */
.sim-flow-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0 0.3rem;
    color: var(--main-color-purple);
}

.sim-flow-arrow i {
    font-size: 1.5rem;
}

.arrow-label {
    font-size: 0.65rem;
    color: var(--text-color-on-light-muted);
    text-align: center;
    margin-top: 0.2rem;
    white-space: nowrap;
}

/* バッジ */
.sim-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
    justify-content: center;
    margin-top: 0.5rem;
}

.sim-badge {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    font-size: 0.65rem;
    font-weight: 600;
    border-radius: 50px;
}

.sim-badge.primary {
    background: rgba(79, 70, 229, 0.15);
    color: var(--main-color-purple);
}

.sim-badge.accent {
    background: linear-gradient(135deg, var(--accent-color-cyan), #10b981);
    color: white;
}

/* 実質投資額ボックス */
.sim-result-box {
    background: linear-gradient(135deg, var(--main-color-purple), var(--main-color-blue));
    padding: 1.5rem;
    border-radius: 16px;
    text-align: center;
    color: white;
    box-shadow: 0 8px 30px rgba(79, 70, 229, 0.35);
}

.sim-result-label {
    font-size: 1rem;
    font-weight: 600;
    opacity: 0.95;
    margin-bottom: 0.5rem;
}

.sim-result-value .sim-big-num {
    font-size: 2.5rem;
    color: white;
    text-shadow: 0 2px 15px rgba(255, 255, 255, 0.3);
}

.sim-result-value .sim-unit {
    color: white;
    font-size: 1.1rem;
}

.sim-result-calc {
    font-size: 0.85rem;
    opacity: 0.9;
    margin: 0.8rem 0 0;
}

/* 利益グリッド */
.sim-profit-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.sim-profit-card {
    background: white;
    padding: 1.2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.sim-profit-card.highlight {
    background: linear-gradient(135deg, var(--accent-color-cyan), #10b981);
    color: white;
}

.profit-label {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.sim-profit-card.highlight .profit-label {
    opacity: 0.95;
}

.profit-value .sim-big-num {
    font-size: 1.8rem;
}

.sim-profit-card.highlight .sim-big-num,
.sim-profit-card.highlight .sim-unit {
    color: white;
}

.profit-note {
    font-size: 0.75rem;
    color: var(--text-color-on-light-muted);
    margin-top: 0.5rem;
}

.sim-profit-card.highlight .profit-note {
    color: rgba(255,255,255,0.85);
}

.profit-detail {
    display: block;
    font-size: 0.7rem;
    margin-top: 0.2rem;
}

/* 月次テーブル */
.sim-table-wrapper {
    max-height: 300px;
    overflow-y: auto;
    border-radius: 8px;
    border: 1px solid var(--border-color-light);
}

.sim-table-wrapper.expanded {
    max-height: none;
}

.sim-monthly-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.sim-monthly-table thead {
    position: sticky;
    top: 0;
    background: var(--main-color-purple);
    color: white;
}

.sim-monthly-table th {
    padding: 0.8rem 0.5rem;
    text-align: center;
    font-weight: 600;
    font-size: 0.8rem;
}

.sim-monthly-table td {
    padding: 0.6rem 0.5rem;
    text-align: center;
    border-bottom: 1px solid var(--border-color-light);
}

.sim-monthly-table tbody tr:nth-child(even) {
    background: rgba(79, 70, 229, 0.03);
}

.sim-monthly-table tbody tr:last-child {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.15), rgba(16, 185, 129, 0.15));
    font-weight: 600;
}

.sim-monthly-table tbody tr:last-child td {
    color: var(--accent-color-cyan);
}

.sim-table-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
    width: 100%;
    padding: 0.8rem;
    margin-top: 0.5rem;
    background: transparent;
    border: 1px solid var(--border-color-light);
    border-radius: 8px;
    font-size: 0.85rem;
    color: var(--main-color-purple);
    cursor: pointer;
    transition: all 0.2s ease;
}

.sim-table-toggle:hover {
    background: rgba(79, 70, 229, 0.05);
}

.sim-table-toggle.expanded i {
    transform: rotate(180deg);
}

/* 注釈 */
.sim-note {
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-color-on-light-muted);
    margin-top: 1.5rem;
}

.sim-note p {
    margin: 0;
}

/* ===== 比較サマリー ===== */
.comparison-summary {
    margin-top: 3rem;
}

.comparison-summary h3 {
    text-align: center;
    font-size: 1.8rem;
    color: var(--main-color-blue);
    margin-bottom: 2.5rem;
}

.comparison-points {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.point-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    text-align: center;
}

.point-card i {
    font-size: 3rem;
    color: var(--main-color-blue);
    margin-bottom: 1rem;
}

.point-card h4 {
    font-size: 1.2rem;
    color: var(--main-color-blue);
    margin-bottom: 1rem;
}

.point-card p {
    line-height: 1.7;
    color: var(--text-color-on-light-muted);
}

/* ===== スクロールヒントインジケーター ===== */
.scheme-scroll-wrapper,
.comparison-scroll-wrapper {
    position: relative;
}

.scroll-hint-indicator {
    display: none;
    position: absolute;
    top: 50%;
    right: 10px;
    transform: translateY(-50%);
    z-index: 10;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.6), rgba(59, 130, 246, 0.6));
    color: white;
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    align-items: center;
    gap: 4px;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.25);
    animation: scrollHintPulse 1.5s ease-in-out infinite;
    pointer-events: none;
    backdrop-filter: blur(4px);
}

.scroll-hint-indicator span {
    white-space: nowrap;
}

.scroll-hint-indicator i {
    font-size: 0.9rem;
    animation: scrollArrowBounce 1s ease-in-out infinite;
}

.scroll-hint-indicator i:nth-child(3) {
    animation-delay: 0.15s;
}

@keyframes scrollHintPulse {
    0%, 100% {
        opacity: 1;
        transform: translateY(-50%) scale(1);
    }
    50% {
        opacity: 0.85;
        transform: translateY(-50%) scale(1.05);
    }
}

@keyframes scrollArrowBounce {
    0%, 100% {
        transform: translateX(0);
    }
    50% {
        transform: translateX(4px);
    }
}

/* ===== 導入事例セクション（アコーディオン） ===== */
.cases-accordion {
    max-width: 900px;
    margin: 0 auto;
}

.case-accordion-item {
    background: white;
    border-radius: 12px;
    margin-bottom: 1rem;
    overflow: hidden;
    box-shadow: var(--card-shadow);
}

.case-accordion-header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.2rem 1.5rem;
    background: white;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.case-accordion-header:hover {
    background: rgba(79, 70, 229, 0.05);
}

.case-accordion-item.active .case-accordion-header {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(59, 130, 246, 0.08));
    border-bottom: 1px solid rgba(79, 70, 229, 0.2);
}

.case-header-content {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
    text-align: left;
}

.case-header-content > i {
    font-size: 1.5rem;
    color: var(--main-color-purple);
}

.case-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color-on-light);
}

.case-summary {
    font-size: 0.85rem;
    color: var(--accent-color-cyan);
    margin-left: auto;
    padding-right: 1rem;
}

.case-summary strong {
    font-weight: 700;
}

.case-toggle {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--main-color-purple), var(--main-color-purple-lighter));
    color: white;
    border-radius: 50%;
    font-size: 1rem;
    transition: transform 0.3s ease;
}

.case-accordion-item.active .case-toggle {
    transform: rotate(180deg);
}

.case-accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
    padding: 0 1.5rem;
}

.case-accordion-item.active .case-accordion-content {
    max-height: 600px;
    padding: 1.2rem 1.5rem;
}

/* 旧スタイルの維持（case-sectionなど） */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.case-card {
    background: white;
    padding: 1.8rem;
    border-radius: 16px;
    box-shadow: var(--card-shadow);
}

.case-company {
    border-bottom: 2px solid var(--main-color-purple);
    padding-bottom: 1rem;
    margin-bottom: 1.2rem;
}

.case-company h3 {
    font-size: 1.1rem;
    color: var(--main-color-purple);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.case-company h3 i {
    font-size: 1.3rem;
}

.case-section {
    margin-bottom: 1rem;
}

.case-section h4 {
    font-size: 0.9rem;
    color: var(--text-color-on-light);
    margin: 0 0 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.case-section h4 i {
    color: var(--main-color-purple);
    font-size: 1rem;
}

.case-section p {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text-color-on-light-muted);
    margin: 0;
}

.case-section.results {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.08), rgba(59, 130, 246, 0.1));
    padding: 1rem;
    border-radius: 10px;
    margin: 1rem 0;
}

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

.case-results li {
    padding: 0.4rem 0;
    font-size: 0.85rem;
    color: var(--text-color-on-light);
    line-height: 1.5;
}

.case-results li strong {
    color: var(--accent-color-cyan);
}

.case-voice {
    background: rgba(6, 182, 212, 0.08);
    padding: 1rem;
    border-radius: 10px;
    margin-top: 1rem;
    position: relative;
}

.case-voice i {
    color: var(--accent-color-cyan);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    display: block;
}

.case-voice p {
    font-size: 0.85rem;
    font-style: italic;
    color: var(--text-color-on-light-muted);
    margin: 0;
    line-height: 1.6;
}

/* ===== デメリット・注意点セクション ===== */
.cautions-intro {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-color-on-light-muted);
    margin-bottom: 3rem;
}

.cautions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin-bottom: 3rem;
}

.cautions-grid-3 {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.caution-card {
    background: white;
    padding: 2.5rem 2rem;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    position: relative;
    overflow: hidden;
}

.caution-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.caution-icon.warning {
    background: rgba(79, 70, 229, 0.1);
    color: var(--main-color-purple);
}

.caution-icon.info {
    background: rgba(0, 123, 255, 0.1);
    color: var(--main-color-blue);
}

.caution-icon.deadline {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
}

.caution-card-highlight {
    border: 2px solid #ef4444;
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.05), rgba(249, 115, 22, 0.05));
}

.caution-note {
    margin-top: 1.2rem;
    padding: 1rem;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(79, 70, 229, 0.08));
    border-radius: 8px;
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    font-size: 0.9rem;
    color: var(--main-color-purple);
}

.caution-note i {
    flex-shrink: 0;
    margin-top: 2px;
}

.caution-card h3 {
    font-size: 1.3rem;
    color: var(--text-color-on-light);
    margin-bottom: 1rem;
}

.caution-card > p {
    line-height: 1.8;
    margin-bottom: 1rem;
    color: var(--text-color-on-light-muted);
}

.caution-solution {
    background: var(--base-color-offwhite);
    padding: 1.5rem;
    border-radius: 8px;
    margin-top: 1.5rem;
}

.caution-solution h4 {
    color: var(--main-color-blue);
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
}

.caution-solution p {
    line-height: 1.8;
    color: var(--text-color-on-light-muted);
}

.cautions-summary {
    margin-top: 3rem;
}

.cautions-summary-compact {
    margin-top: 2rem;
}

.summary-box {
    background: linear-gradient(135deg, var(--main-color-blue) 0%, var(--main-color-blue-darker) 100%);
    color: white;
    padding: 3rem;
    border-radius: 12px;
    text-align: center;
}

.summary-box-compact {
    background: linear-gradient(135deg, var(--main-color-purple) 0%, var(--main-color-purple-darker) 100%);
    color: white;
    padding: 1.5rem 2rem;
    border-radius: 12px;
    text-align: center;
}

.summary-box-compact h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
}

.summary-box-compact h3 i {
    color: var(--accent-color-yellow);
}

.summary-box-compact p {
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.summary-cta-text {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.85);
    margin: 0;
}

.cautions-cta {
    margin-top: 1.5rem;
    text-align: center;
}

.summary-box h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.summary-box p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.summary-cta {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent-color-yellow);
    margin-top: 1.5rem;
}

/* ===== レスポンシブ ===== */
@media (max-width: 1024px) and (min-width: 769px) {
    .problems-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.8rem;
    }
}

@media (max-width: 768px) {
    /* コンテナのパディング調整 */
    .container {
        width: 95%;
        padding-left: 10px;
        padding-right: 10px;
    }

    /* セクションのパディング調整 */
    .section-padding {
        padding-top: 3rem;
        padding-bottom: 3rem;
    }

    .section-padding-deep {
        padding-top: 4rem;
        padding-bottom: 4rem;
    }

    .mobile-only {
        display: inline;
    }

    .desktop-only {
        display: none;
    }

    .subpage-nav {
        display: none;
    }

    .hero-company-name {
        font-size: 1.8rem;
    }

    .hero-accent-box {
        padding: 0.5rem 1.2rem;
        margin-bottom: 1.2rem;
        transform: scale(1);
    }

    .accent-text {
        font-size: 0.85rem;
        line-height: 1.4;
    }

    .hero-section h1 {
        font-size: 1.6rem;
        margin-bottom: 1.2rem;
        line-height: 1.4;
    }

    .hero-section h1 .main-copy {
        font-size: 0.75em;
        margin-top: 0.3rem;
    }

    .hero-badges {
        gap: 0.5rem;
        flex-wrap: wrap;
        justify-content: center;
        margin-bottom: 1.5rem;
        padding: 0 0.5rem;
    }

    .hero-badge {
        font-size: 0.75rem;
        padding: 0.6rem 1rem;
        min-height: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        flex: 1 1 calc(50% - 0.5rem);
        min-width: calc(50% - 0.5rem);
        max-width: 100%;
        text-align: center;
        line-height: 1.3;
    }

    .hero-badge i {
        font-size: 1.1em;
        margin-right: 0.3rem;
        flex-shrink: 0;
    }

    .hero-cta {
        font-size: 1rem;
        padding: 1rem 2rem;
        margin-bottom: 1.5rem;
        min-height: 48px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .floating-menu {
        width: 100px;
        height: 100px;
        bottom: 85px;
        right: 12px;
        padding: 0.5rem 0.6rem 0.4rem;
        justify-content: center;
    }


    .floating-title {
        font-size: 0.65rem;
    }

    .floating-subtitle {
        font-size: 0.6rem;
    }

    .floating-arrow {
        font-size: 1.3rem;
        margin-top: 0.1rem;
    }

    @keyframes slideInUp {
        from {
            bottom: -150px;
            opacity: 0;
        }
        to {
            bottom: 50px;
            opacity: 1;
        }
    }

    @keyframes slideOutDown {
        from {
            bottom: 50px;
            opacity: 1;
        }
        to {
            bottom: -150px;
            opacity: 0;
        }
    }

    .scroll-indicator {
        margin-top: 1rem;
    }

    .scroll-text {
        font-size: 0.85rem;
    }

    .scroll-arrow i {
        font-size: 1.3rem;
    }

    .problems-section {
        padding: 3rem 0;
    }

    .problems-section .section-title {
        margin-bottom: 1.5rem;
    }

    .problems-grid {
        grid-template-columns: 1fr;
        gap: 1.2rem;
        margin-top: 1.5rem;
        margin-bottom: 1.5rem;
    }

    .problem-card {
        padding: 1.2rem 1rem;
    }

    .problem-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
        margin-bottom: 0.8rem;
    }

    .problem-card h3 {
        font-size: 0.95rem;
        margin-bottom: 0.5rem;
    }

    .problem-card p {
        font-size: 0.8rem;
        line-height: 1.5;
    }

    .problems-cta {
        padding: 1.5rem 1rem;
        margin-top: 1.5rem;
    }

    .problems-solution-text {
        font-size: 1.1rem;
        line-height: 1.5;
    }

    .solution-highlight {
        font-size: 1.3rem;
    }

    .why-now-content {
        grid-template-columns: 1fr;
    }

    .section-intro {
        font-size: 1rem;
        padding: 0 1rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        margin-bottom: 3rem;
    }

    .about-video-section,
    .about-image-section {
        grid-template-columns: 1fr;
    }

    .about-image-section {
        display: flex;
        flex-direction: column-reverse;
    }

    .about-subtitle {
        font-size: 1.3rem;
    }

    .about-text .lead {
        font-size: 1rem;
        line-height: 1.7;
    }

    .about-text p {
        font-size: 0.95rem;
        line-height: 1.8;
    }

    /* テキストの可読性向上 */
    body {
        font-size: 15px;
        line-height: 1.7;
    }

    p {
        line-height: 1.7;
        margin-bottom: 1rem;
    }

    /* カードのパディング調整 */
    .problem-card,
    .case-card,
    .caution-card {
        padding: 1.2rem;
    }

    /* アコーディオンのタップ領域 */
    .merit-accordion-header,
    .case-accordion-header,
    .faq-question {
        min-height: 48px;
        padding: 1rem 1.2rem;
    }

    .merit-toggle,
    .case-toggle {
        min-width: 44px;
        min-height: 44px;
    }

    /* メリットアコーディオン モバイル */
    .merit-accordion-header {
        padding: 1rem 1.2rem;
        gap: 0.8rem;
    }

    .merit-num {
        width: 30px;
        height: 30px;
        font-size: 0.75rem;
    }

    .merit-title {
        font-size: 0.95rem;
        gap: 0.4rem;
    }

    .merit-title i {
        font-size: 1.1rem;
    }

    .merit-toggle {
        width: 28px;
        height: 28px;
    }

    .merit-accordion-content {
        padding: 0 1.2rem;
    }

    .merit-accordion-item.active .merit-accordion-content {
        padding: 0.8rem 1.2rem 1.2rem;
    }

    .merit-accordion-content p {
        font-size: 0.9rem;
    }

    .merit-list {
        flex-direction: column;
        gap: 0.3rem;
    }

    .merit-list li {
        font-size: 0.85rem;
    }

    .merits-intro {
        font-size: 1rem;
        padding: 0 1rem;
    }

    .merit-item {
        padding: 1.5rem;
        margin-bottom: 1.5rem;
    }

    .merit-title {
        font-size: 1.2rem;
    }

    .merit-content {
        font-size: 0.95rem;
    }

    .merit-stats-box {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .stat-value {
        font-size: 1.5rem;
    }

    .merit-process-box,
    .merit-safety-box,
    .merit-simulation-box,
    .merit-delegation-box {
        padding: 1rem;
    }

    .merit-process-box h4,
    .merit-safety-box h4,
    .merit-simulation-box h4,
    .merit-delegation-box h4 {
        font-size: 1.1rem;
    }

    /* スキームセクション モバイル（横スクロール） */
    .scheme-steps-horizontal {
        justify-content: flex-start;
        padding: 1rem;
        margin: 0 -1rem 2rem;
    }

    .scheme-step-h {
        min-width: 140px;
        max-width: 140px;
        padding: 1rem 0.8rem;
    }

    .step-num-h {
        width: 30px;
        height: 30px;
        font-size: 0.9rem;
    }

    .scheme-step-h h4 {
        font-size: 0.8rem;
    }

    .scheme-step-h p {
        font-size: 0.7rem;
    }

    .scheme-arrow-h {
        padding: 0 0.3rem;
        font-size: 1.2rem;
    }

    .scheme-roles {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .scheme-role-box {
        padding: 1.5rem;
    }

    .scheme-role-box h4 {
        font-size: 1rem;
    }

    .scheme-role-box li {
        font-size: 0.9rem;
        padding-left: 1.5rem;
    }

    .role-note {
        display: block;
        margin-left: 0;
        margin-top: 0.2rem;
    }

    /* シミュレーション モバイル（新デザイン） */
    .sim-input-area {
        max-width: 100%;
    }

    .sim-input-box {
        padding: 1.2rem;
    }

    .sim-section-block {
        padding: 1.2rem;
        margin-bottom: 1rem;
    }

    .sim-section-title {
        font-size: 1rem;
    }

    .sim-tax-flow {
        flex-direction: column;
        gap: 0.8rem;
    }

    .sim-tax-step {
        padding: 1rem;
    }

    .sim-flow-arrow {
        flex-direction: row;
        padding: 0.3rem 0;
    }

    .sim-flow-arrow i {
        transform: rotate(90deg);
    }

    .arrow-label {
        margin-top: 0;
        margin-left: 0.5rem;
    }

    .sim-step-label {
        font-size: 1rem;
    }

    .sim-big-num {
        font-size: 1.8rem;
    }

    .sim-step-value.highlight .sim-big-num {
        font-size: 2rem;
    }

    .sim-result-box {
        padding: 1.2rem;
    }

    .sim-result-value .sim-big-num {
        font-size: 2rem;
    }

    .sim-profit-grid {
        grid-template-columns: 1fr;
        gap: 0.8rem;
    }

    .sim-profit-card {
        padding: 1rem;
    }

    .profit-value .sim-big-num {
        font-size: 1.5rem;
    }

    .sim-monthly-table th,
    .sim-monthly-table td {
        padding: 0.5rem 0.3rem;
        font-size: 0.75rem;
    }

    .sim-table-wrapper {
        max-height: 250px;
    }

    .sim-table-toggle {
        font-size: 0.8rem;
        padding: 0.6rem;
    }

    .problems-message {
        font-size: 1rem;
        margin-bottom: 1.2rem;
    }

    .problems-message i {
        font-size: 1.3rem;
    }

    .section-title {
        font-size: 1.8rem;
        margin-bottom: 2rem;
        line-height: 1.3;
        padding: 0 0.5rem;
    }

    /* ボタンのタップ領域確保 */
    .btn {
        min-height: 44px;
        padding: 0.9rem 1.8rem;
        font-size: 0.95rem;
    }

    .btn-large {
        min-height: 48px;
        padding: 1rem 2.2rem;
        font-size: 1rem;
    }

    /* 比較表モバイル */
    .comparison-table-new {
        min-width: 600px;
        font-size: 0.8rem;
    }

    .comparison-table-new .col-icon {
        font-size: 1.5rem;
    }

    .comparison-table-new .col-title {
        font-size: 0.75rem;
    }

    .comparison-table-new tbody td {
        padding: 0.8rem 0.5rem;
        font-size: 0.8rem;
    }

    /* スクロールヒントをモバイルで表示 */
    .scroll-hint-indicator {
        display: flex;
    }

    /* 導入事例アコーディオン モバイル */
    .case-header-content {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .case-header-content > i {
        font-size: 1.3rem;
    }

    .case-title {
        font-size: 0.9rem;
        flex: 1;
        min-width: 150px;
    }

    .case-summary {
        font-size: 0.75rem;
        margin-left: 0;
        padding-right: 0;
        width: 100%;
        padding-left: 2.3rem;
    }

    .case-accordion-header {
        padding: 1rem;
    }

    .case-toggle {
        width: 28px;
        height: 28px;
        font-size: 0.9rem;
    }

    .case-accordion-content {
        padding: 0 1rem;
    }

    .case-accordion-item.active .case-accordion-content {
        padding: 1rem;
    }

    /* 旧グリッド導入事例モバイル */
    .cases-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .case-card {
        padding: 1.5rem;
    }

    .case-company h3 {
        font-size: 1rem;
    }

    /* デメリットセクション モバイル */
    .cautions-grid-3 {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .caution-card {
        padding: 1.5rem;
    }

    .caution-card h3 {
        font-size: 1.1rem;
    }

    .caution-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }

    .summary-box-compact {
        padding: 1.2rem 1rem;
    }

    .summary-box-compact h3 {
        font-size: 1.1rem;
    }

    .summary-box-compact p {
        font-size: 0.9rem;
    }

    /* FAQモバイル */
    .faq-question {
        padding: 1rem;
        font-size: 0.95rem;
    }

    .faq-list-open .faq-answer {
        padding: 1rem;
    }

    .cta-highlight-box {
        padding: 1.5rem 1.2rem;
    }

    .cta-highlight-text {
        font-size: 1.1rem;
    }

    .cta-badge {
        display: block;
        margin: 0 auto 0.8rem;
        width: fit-content;
    }

    .cta-description {
        font-size: 0.9rem;
    }

    .cta-note {
        font-size: 0.8rem;
    }

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

    .cta-product-card {
        padding: 1.2rem;
    }

    .cta-product-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }

    .cta-product-card h4 {
        font-size: 1rem;
    }

    .cta-product-price {
        font-size: 1.1rem;
    }

    .cta-text {
        font-size: 0.85rem;
        line-height: 1.6;
    }

    /* CTAセクション タイトル1行化 */
    .cta-section .section-title {
        font-size: 1.4rem;
        line-height: 1.4;
    }

    .cta-section .section-title br.mobile-only {
        display: none;
    }

    /* お悩みセクション タイトル1行化 */
    .problems-section .section-title {
        font-size: 1.5rem;
        white-space: nowrap;
    }

    .problem-list li {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }

    .solution-steps-grid {
        grid-template-columns: 1fr;
    }

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

    /* フォーム要素の最適化 */
    .form-group input,
    .form-group select,
    .form-group textarea {
        min-height: 44px;
        font-size: 16px; /* iOSでズームを防ぐ */
        padding: 0.9rem 1rem;
    }

    .form-group label {
        font-size: 0.95rem;
        margin-bottom: 0.6rem;
    }

    .submit-btn {
        min-height: 48px;
        font-size: 1rem;
        padding: 1rem 2rem;
    }

    /* テーブルの最適化 */
    .comparison-table-wrapper {
        -webkit-overflow-scrolling: touch;
        overflow-x: auto;
    }

    .sim-table-wrapper {
        -webkit-overflow-scrolling: touch;
    }

    .footer-info {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .timeline-item {
        flex-direction: column;
        text-align: center;
    }

    .timeline-days {
        min-width: auto;
    }
}

@media (max-width: 480px) {
    /* コンテナのパディング調整 */
    .container {
        width: 98%;
        padding-left: 8px;
        padding-right: 8px;
    }

    /* セクションのパディング調整 */
    .section-padding {
        padding-top: 2.5rem;
        padding-bottom: 2.5rem;
    }

    .section-padding-deep {
        padding-top: 3rem;
        padding-bottom: 3rem;
    }

    .hero-section h1 {
        font-size: 1.4rem;
        line-height: 1.3;
    }

    .hero-cta {
        padding: 0.9rem 1.5rem;
        font-size: 0.95rem;
        width: 100%;
        max-width: 320px;
    }

    .section-title {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
    }

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

    .contact-form {
        padding: 1.5rem 1rem;
    }

    /* テキストサイズの調整 */
    .problems-solution-text {
        font-size: 1rem;
    }

    .solution-highlight {
        font-size: 1.2rem;
    }

    .about-subtitle {
        font-size: 1.2rem;
    }

    /* カードのパディング調整 */
    .problem-card,
    .case-card,
    .caution-card {
        padding: 1rem;
    }

    /* ボタンのサイズ調整 */
    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }

    .btn-large {
        padding: 0.9rem 1.8rem;
        font-size: 0.95rem;
    }

    /* スマホ固定CTA - フッター分のスペース確保 */
    body {
        padding-bottom: 70px;
    }
}

/* ===== スマホ用固定CTA ===== */
.mobile-fixed-cta {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--gradient-dark);
    padding: 12px 16px;
    box-shadow: 0 -4px 20px rgba(79, 70, 229, 0.3);
}

.mobile-cta-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 14px 20px;
    background: linear-gradient(135deg, var(--accent-color-cyan), #0891b2);
    color: white;
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.mobile-cta-btn:hover {
    background: linear-gradient(135deg, #0891b2, var(--accent-color-cyan));
    transform: scale(1.02);
}

.mobile-cta-btn i {
    font-size: 1.3rem;
}

@media (max-width: 768px) {
    .mobile-fixed-cta {
        display: block;
    }
}