/* ========================================
   リセット & ベーススタイル
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* フォント */
    --font-primary: 'BIZ UDPGothic', 'Noto Sans JP', 'Yu Gothic', 'Hiragino Kaku Gothic ProN', 'Meiryo', sans-serif;
    --font-heading: 'BIZ UDPGothic', 'Noto Sans JP', 'Yu Gothic', 'Hiragino Kaku Gothic ProN', 'Meiryo', sans-serif;
    --font-number: 'BIZ UDPGothic', 'Roboto', 'Arial', sans-serif;
    
    /* カラーパレット */
    --primary-dark: #0A1929;
    --primary-blue: #1E3A5F;
    --primary-light: #2E5C8A;
    --accent-gold: #D4AF37;
    --accent-gold-light: #F4D03F;
    --text-white: #FFFFFF;
    --text-gray: #E0E0E0;
    --text-dark: #333333;
    --bg-dark: #0D1B2A;
    --bg-card: #1B2838;
    --bg-light: #F8F9FA;
    --success: #28A745;
    --warning: #FFC107;
    --danger: #DC3545;
    
    /* グラデーション */
    --gradient-primary: linear-gradient(135deg, #0A1929 0%, #1E3A5F 50%, #2E5C8A 100%);
    --gradient-gold: linear-gradient(135deg, #D4AF37 0%, #F4D03F 100%);
    --gradient-overlay: linear-gradient(135deg, rgba(10, 25, 41, 0.95) 0%, rgba(46, 92, 138, 0.85) 100%);
    
    /* シャドウ */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
    --shadow-gold: 0 4px 20px rgba(212, 175, 55, 0.3);
    
    /* トランジション */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'BIZ UDPGothic', 'Noto Sans JP', 'Yu Gothic', 'Hiragino Kaku Gothic ProN', 'Meiryo', sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    background-color: var(--bg-light);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 見出し用フォント */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.4;
}

/* 数値表示用フォント */
.result-value,
.amount-value,
.calc-value,
.data-value,
.stat-value,
.yield-value {
    font-family: var(--font-number);
}

/* 読みやすさの向上 */
p, li, label, input, textarea, select, button {
    font-family: var(--font-primary);
    letter-spacing: 0.03em;
}

/* アクセシビリティ向上 */
.required,
.optional {
    font-weight: 700;
}

/* 強調テキスト */
strong, b {
    font-weight: 700;
}

/* 斜体テキスト */
em, i:not([class*="fa"]) {
    font-style: italic;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* スキップリンク（アクセシビリティ） */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--accent-gold);
    color: var(--primary-dark);
    padding: 10px 20px;
    font-weight: 700;
    z-index: 10000;
    transition: var(--transition);
}

.skip-link:focus {
    top: 0;
}

/* スクリーンリーダー専用テキスト */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* フォーカス可視化 */
*:focus-visible {
    outline: 3px solid var(--accent-gold);
    outline-offset: 2px;
}

/* ========================================
   ヘッダー
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 25, 41, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--accent-gold);
    font-size: 1.2rem;
    font-weight: 700;
}

.logo i {
    font-size: 1.5rem;
}

.nav {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav a {
    color: var(--text-white);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav a:not(.cta-button):hover {
    color: var(--accent-gold);
}

.nav a:not(.cta-button)::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-gold);
    transition: var(--transition);
}

.nav a:not(.cta-button):hover::after {
    width: 100%;
}

.cta-button {
    background: var(--gradient-gold);
    color: var(--primary-dark);
    padding: 10px 25px;
    border-radius: 50px;
    font-weight: 700;
    box-shadow: var(--shadow-gold);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(212, 175, 55, 0.4);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-white);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ========================================
   ヒーローセクション
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    z-index: 0;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('../images/hero-background.jpg');
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    opacity: 0.9;
    z-index: 1;
}

.hero-background::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(10, 25, 41, 0.7) 0%, rgba(46, 92, 138, 0.6) 100%);
    z-index: 2;
}

.hero-content {
    text-align: center;
    color: var(--text-white);
    position: relative;
    z-index: 10;
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-badge {
    display: inline-block;
    background: rgba(212, 175, 55, 0.2);
    border: 2px solid var(--accent-gold);
    color: var(--accent-gold);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 20px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.hero-title {
    font-size: 3rem;
    font-weight: 900;
    line-height: 1.3;
    margin-bottom: 20px;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
    letter-spacing: 0.02em;
}

.hero-title .highlight {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    line-height: 1.8;
    margin-bottom: 30px;
    color: var(--text-gray);
}

.hero-subtitle strong {
    color: var(--accent-gold);
    font-size: 1.4rem;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
}

.hero-feature i {
    color: var(--accent-gold);
    font-size: 1.2rem;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--gradient-gold);
    color: var(--primary-dark);
    padding: 18px 40px;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 700;
    text-decoration: none;
    box-shadow: var(--shadow-gold);
    transition: var(--transition);
}

.hero-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(212, 175, 55, 0.5);
}

.hero-note {
    margin-top: 15px;
    font-size: 0.9rem;
    color: var(--text-gray);
}

.hero-scroll {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--text-gray);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

.hero-scroll span {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 5px;
}

/* ========================================
   セクション共通
   ======================================== */
section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--primary-dark);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
    letter-spacing: 0.02em;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient-gold);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #666;
    margin-top: 20px;
    line-height: 1.8;
}

/* ========================================
   シミュレーターセクション
   ======================================== */
.simulator {
    background: var(--bg-light);
}

.simulator-card {
    background: var(--text-white);
    border-radius: 20px;
    padding: 50px;
    box-shadow: var(--shadow-lg);
    max-width: 900px;
    margin: 0 auto;
}

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

.simulator-input label {
    display: block;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 15px;
}

.simulator-input input {
    width: 100%;
    max-width: 400px;
    padding: 15px 20px;
    font-size: 1.5rem;
    text-align: center;
    border: 3px solid var(--primary-light);
    border-radius: 10px;
    margin-bottom: 25px;
    transition: var(--transition);
}

.simulator-input input:focus {
    outline: none;
    border-color: var(--accent-gold);
    box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.2);
}

.calculate-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--gradient-primary);
    color: var(--text-white);
    padding: 18px 50px;
    border: none;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.calculate-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.simulator-result {
    margin-top: 40px;
    padding-top: 40px;
    border-top: 2px solid #eee;
}

.simulator-result.hidden {
    display: none;
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.result-item {
    text-align: center;
    padding: 20px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 15px;
    transition: var(--transition);
}

.result-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.result-item i {
    font-size: 2.5rem;
    color: var(--accent-gold);
    margin-bottom: 10px;
}

.result-item h3 {
    font-size: 1rem;
    color: #666;
    margin-bottom: 10px;
}

.result-value {
    font-size: 3rem;
    font-weight: 900;
    color: var(--primary-dark);
    font-family: 'Roboto', sans-serif;
}

.result-unit {
    font-size: 1.2rem;
    color: #666;
    margin-left: 5px;
}

.result-detail {
    text-align: center;
    padding: 20px;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.1), rgba(244, 208, 63, 0.1));
    border-radius: 10px;
    margin-bottom: 25px;
}

.result-detail h4 {
    font-size: 1.5rem;
    color: var(--primary-dark);
}

.result-detail h4 span {
    color: var(--accent-gold);
    font-size: 2rem;
}

.result-cta {
    width: 100%;
    padding: 18px;
    background: var(--gradient-gold);
    color: var(--primary-dark);
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-gold);
}

.result-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(212, 175, 55, 0.4);
}

/* ========================================
   問題解決セクション
   ======================================== */
.problems {
    background: var(--text-white);
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.problem-card {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    padding: 40px 30px;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition);
}

.problem-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.problem-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1.8rem;
}

.problem-icon.negative {
    background: linear-gradient(135deg, #ffebee 0%, #ffcdd2 100%);
    color: var(--danger);
}

.solution-icon.positive {
    background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
    color: var(--success);
}

.problem-card h3 {
    font-size: 1.3rem;
    color: var(--primary-dark);
    margin-bottom: 15px;
}

.problem-card p {
    color: #666;
    margin-bottom: 20px;
}

.arrow-down {
    font-size: 2rem;
    color: var(--accent-gold);
    margin: 20px 0;
}

.solution-icon {
    width: 60px;
    height: 60px;
    margin: 20px auto;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1.8rem;
}

.solution {
    padding: 20px;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.05), rgba(244, 208, 63, 0.05));
    border-radius: 10px;
}

.solution h4 {
    font-size: 1.2rem;
    color: var(--primary-dark);
    margin-bottom: 10px;
}

.solution p {
    font-size: 0.95rem;
    color: #666;
}

/* ========================================
   比較表セクション
   ======================================== */
.comparison {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.comparison-table-wrapper {
    overflow-x: auto;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

.comparison-table {
    width: 100%;
    background: var(--text-white);
    border-collapse: collapse;
}

.comparison-table thead th {
    background: var(--gradient-primary);
    color: var(--text-white);
    padding: 20px 15px;
    font-weight: 700;
    text-align: center;
}

.comparison-table thead th.highlight-col {
    background: var(--gradient-gold);
    color: var(--primary-dark);
}

.comparison-table thead th i {
    margin-right: 5px;
}

.comparison-table tbody td {
    padding: 18px 15px;
    text-align: center;
    border-bottom: 1px solid #eee;
}

.comparison-table tbody tr:hover {
    background: #f8f9fa;
}

.comparison-table tbody td:first-child {
    font-weight: 700;
    text-align: left;
    color: var(--primary-dark);
}

.comparison-table tbody td.highlight-col {
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.1), rgba(244, 208, 63, 0.05));
    font-weight: 700;
    color: var(--primary-dark);
}

/* ========================================
   収益モデルセクション
   ======================================== */
.revenue-model {
    background: var(--bg-dark);
    color: var(--text-white);
}

.revenue-model .section-title {
    color: var(--text-white);
}

.revenue-model .section-subtitle {
    color: var(--text-gray);
}

.model-timeline {
    display: flex;
    flex-direction: column;
    gap: 40px;
    margin-bottom: 60px;
}

.model-stage {
    position: relative;
}

.stage-badge {
    display: inline-block;
    background: var(--gradient-gold);
    color: var(--primary-dark);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.stage-card {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    border-left: 5px solid var(--accent-gold);
}

.stage-icon {
    font-size: 3rem;
    color: var(--accent-gold);
    margin-bottom: 20px;
}

.stage-card h3 {
    font-size: 1.8rem;
    margin-bottom: 30px;
}

.stage-amount {
    display: inline-block;
    margin: 10px 20px;
}

.amount-label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-gray);
    margin-bottom: 5px;
}

.amount-value {
    font-size: 2.5rem;
    font-weight: 900;
    font-family: 'Roboto', sans-serif;
}

.amount-value.highlight {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stage-arrow {
    display: inline-block;
    font-size: 2rem;
    color: var(--accent-gold);
    margin: 0 10px;
}

.stage-details {
    list-style: none;
    margin-top: 25px;
}

.stage-details li {
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.stage-details li:last-child {
    border-bottom: none;
}

.stage-details i {
    color: var(--accent-gold);
    margin-right: 10px;
}

.model-summary {
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.2), rgba(244, 208, 63, 0.1));
    padding: 50px;
    border-radius: 20px;
    text-align: center;
}

.model-summary h3 {
    font-size: 2rem;
    margin-bottom: 30px;
}

.summary-calc {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 30px;
}

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

.calc-label {
    display: block;
    font-size: 1rem;
    color: var(--text-gray);
    margin-bottom: 10px;
}

.calc-value {
    font-size: 2rem;
    font-weight: 900;
    font-family: 'Roboto', sans-serif;
}

.calc-plus,
.calc-equals {
    font-size: 2rem;
    color: var(--accent-gold);
}

.calc-result {
    padding: 20px 40px;
    background: var(--gradient-gold);
    border-radius: 15px;
}

.calc-result .calc-label {
    color: var(--primary-dark);
}

.calc-result .calc-value {
    color: var(--primary-dark);
    font-size: 3rem;
}

.summary-yield {
    padding-top: 30px;
    border-top: 2px solid rgba(255, 255, 255, 0.2);
}

.summary-yield h4 {
    font-size: 2rem;
}

.yield-value {
    color: var(--accent-gold);
    font-size: 3.5rem;
    font-weight: 900;
}

/* ========================================
   ビジネスモデルセクション
   ======================================== */
.business-models {
    background: var(--text-white);
}

.models-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.model-card {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
}

.model-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.model-card.featured {
    border: 3px solid var(--accent-gold);
}

.model-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--primary-dark);
    color: var(--text-white);
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 700;
}

.model-badge.popular {
    background: var(--gradient-gold);
    color: var(--primary-dark);
}

.model-card h3 {
    font-size: 1.5rem;
    color: var(--primary-dark);
    margin-bottom: 25px;
}

.model-image {
    font-size: 4rem;
    color: var(--accent-gold);
    text-align: center;
    margin-bottom: 30px;
}

.model-features {
    list-style: none;
    margin-bottom: 30px;
}

.model-features li {
    padding: 12px 0;
    border-bottom: 1px solid #eee;
}

.model-features li:last-child {
    border-bottom: none;
}

.model-features i {
    color: var(--success);
    margin-right: 10px;
}

.model-flow {
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.1), rgba(244, 208, 63, 0.05));
    padding: 20px;
    border-radius: 10px;
}

.model-flow h4 {
    font-size: 1.1rem;
    color: var(--primary-dark);
    margin-bottom: 15px;
}

.model-flow ol {
    margin-left: 20px;
}

.model-flow li {
    padding: 5px 0;
    color: #666;
}

.models-note {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    padding: 20px 30px;
    border-radius: 10px;
    text-align: center;
}

.models-note i {
    color: var(--primary-light);
    margin-right: 10px;
}

/* ========================================
   メリットセクション
   ======================================== */
.merits {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.merits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.merit-card {
    background: var(--text-white);
    padding: 40px 30px;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition);
    position: relative;
}

.merit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.merit-card.highlight {
    border: 3px solid var(--accent-gold);
}

.merit-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.1), rgba(244, 208, 63, 0.1));
    border-radius: 50%;
    font-size: 2.5rem;
    color: var(--accent-gold);
}

.merit-card h3 {
    font-size: 1.3rem;
    color: var(--primary-dark);
    margin-bottom: 15px;
}

.merit-card p {
    color: #666;
    line-height: 1.8;
}

.merit-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-gold);
    color: var(--primary-dark);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

/* ========================================
   導入事例セクション
   ======================================== */
.cases {
    background: var(--text-white);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.case-card {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    padding: 35px;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.case-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 2px solid #eee;
}

.case-company {
    display: flex;
    align-items: center;
    gap: 15px;
}

.case-company i {
    font-size: 2.5rem;
    color: var(--primary-light);
}

.case-company h3 {
    font-size: 1.3rem;
    color: var(--primary-dark);
    margin-bottom: 5px;
}

.case-company p {
    font-size: 0.9rem;
    color: #666;
}

.case-year {
    background: var(--accent-gold);
    color: var(--text-white);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 700;
}

.case-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 25px;
}

.stat {
    text-align: center;
    padding: 15px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 10px;
}

.stat.highlight {
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.2), rgba(244, 208, 63, 0.1));
}

.stat-label {
    display: block;
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--primary-dark);
    font-family: 'Roboto', sans-serif;
}

.stat.highlight .stat-value {
    color: var(--accent-gold);
}

.case-comment {
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.05), rgba(244, 208, 63, 0.02));
    padding: 20px;
    border-radius: 10px;
    border-left: 4px solid var(--accent-gold);
}

.case-comment p {
    font-style: italic;
    color: #555;
    line-height: 1.8;
}

/* ========================================
   市場データセクション
   ======================================== */
.market-data {
    background: var(--gradient-primary);
    color: var(--text-white);
}

.market-data .section-title {
    color: var(--text-white);
}

.data-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.data-card {
    background: var(--bg-card);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.data-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.data-card.highlight {
    border: 3px solid var(--accent-gold);
}

.data-icon {
    font-size: 3rem;
    color: var(--accent-gold);
    margin-bottom: 20px;
}

.data-card h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.data-value {
    font-size: 3rem;
    font-weight: 900;
    color: var(--accent-gold);
    font-family: 'Roboto', sans-serif;
    margin-bottom: 10px;
}

.data-value span {
    font-size: 1.5rem;
    margin-left: 5px;
}

.data-year {
    font-size: 0.9rem;
    color: var(--text-gray);
    margin-bottom: 10px;
}

.data-trend {
    font-size: 1rem;
    font-weight: 700;
}

.data-trend i {
    color: var(--success);
    margin-right: 5px;
}

/* ========================================
   Q&Aセクション
   ======================================== */
.faq {
    background: var(--text-white);
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: #f8f9fa;
    margin-bottom: 20px;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 25px 30px;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    transition: var(--transition);
}

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

.faq-number {
    background: var(--gradient-gold);
    color: var(--primary-dark);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-weight: 900;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.faq-text {
    flex: 1;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-dark);
}

.faq-question i {
    color: var(--accent-gold);
    font-size: 1.5rem;
    transition: var(--transition);
    flex-shrink: 0;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 30px 25px 100px;
    line-height: 1.8;
    color: #666;
}

.faq-answer strong {
    color: var(--primary-dark);
    font-size: 1.1rem;
}

/* ========================================
   フローセクション
   ======================================== */
.flow {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.flow-steps {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 60px;
    flex-wrap: wrap;
    gap: 30px;
}

.flow-step {
    flex: 1;
    min-width: 250px;
    background: var(--text-white);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
}

.flow-step:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.step-number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-gold);
    color: var(--primary-dark);
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: 900;
    box-shadow: var(--shadow-md);
}

.step-icon {
    font-size: 3.5rem;
    color: var(--accent-gold);
    margin: 20px 0;
}

.flow-step h3 {
    font-size: 1.3rem;
    color: var(--primary-dark);
    margin-bottom: 15px;
}

.step-duration {
    font-size: 0.9rem;
    color: var(--accent-gold);
    font-weight: 700;
    margin-bottom: 20px;
}

.step-details {
    list-style: none;
    text-align: left;
}

.step-details li {
    padding: 8px 0;
    color: #666;
    border-bottom: 1px solid #eee;
}

.step-details li:last-child {
    border-bottom: none;
}

.flow-arrow {
    font-size: 2rem;
    color: var(--accent-gold);
}

.flow-bonus {
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.1), rgba(244, 208, 63, 0.05));
    padding: 40px;
    border-radius: 20px;
    text-align: center;
}

.flow-bonus h3 {
    font-size: 2rem;
    color: var(--primary-dark);
    margin-bottom: 30px;
}

.bonus-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.bonus-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: var(--text-white);
    border-radius: 15px;
    box-shadow: var(--shadow-sm);
}

.bonus-item i {
    font-size: 2rem;
    color: var(--accent-gold);
}

.bonus-item .highlight {
    color: var(--danger);
    font-weight: 900;
    font-size: 1.1rem;
}

/* ========================================
   税制詳細セクション
   ======================================== */
.tax-details {
    background: var(--text-white);
}

.tax-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.tax-card {
    padding: 30px;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-radius: 15px;
    border-left: 5px solid var(--accent-gold);
    box-shadow: var(--shadow-sm);
}

.tax-card h3 {
    font-size: 1.2rem;
    color: var(--primary-dark);
    margin-bottom: 15px;
}

.tax-card h3 i {
    color: var(--accent-gold);
    margin-right: 10px;
}

.tax-card p {
    color: #666;
    line-height: 1.8;
}

/* ========================================
   最終CTAセクション
   ======================================== */
.final-cta {
    background: var(--gradient-primary);
    color: var(--text-white);
    padding: 80px 0;
}

.cta-content {
    max-width: 900px;
    margin: 0 auto 40px;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.cta-content p {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: 40px;
}

.cta-form {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.form-group {
    text-align: left;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    display: block;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.required {
    color: var(--danger);
    font-size: 0.85rem;
    margin-left: 5px;
}

.optional {
    color: #999;
    font-size: 0.85rem;
    margin-left: 5px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #444;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-white);
    font-size: 1rem;
    transition: var(--transition);
    font-family: var(--font-primary);
    letter-spacing: 0.03em;
    line-height: 1.6;
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url('data:image/svg+xml;charset=UTF-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="%23D4AF37" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="6 9 12 15 18 9"></polyline></svg>');
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 20px;
    padding-right: 40px;
}

.form-group select option {
    background: var(--bg-card);
    color: var(--text-white);
    padding: 10px;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-gold);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.2);
}

.form-help {
    font-size: 0.85rem;
    color: var(--text-gray);
    margin-top: 5px;
    font-style: italic;
}

.submit-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 18px;
    background: var(--gradient-gold);
    color: var(--primary-dark);
    border: none;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-gold);
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(212, 175, 55, 0.5);
}

.form-note {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-gray);
    margin-top: 20px;
}

.form-note i {
    color: var(--accent-gold);
    margin-right: 5px;
}

.cta-contact {
    text-align: center;
    max-width: 500px;
    margin: 0 auto;
    padding: 40px;
    background: var(--bg-card);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

.cta-contact h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.phone-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--accent-gold);
    text-decoration: none;
    margin-bottom: 15px;
    transition: var(--transition);
}

.phone-link:hover {
    transform: scale(1.05);
}

.cta-contact p {
    color: var(--text-gray);
}

/* ========================================
   フッター
   ======================================== */
.footer {
    background: var(--primary-dark);
    color: var(--text-gray);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3,
.footer-section h4 {
    color: var(--text-white);
    margin-bottom: 20px;
}

.footer-section h3 {
    font-size: 1.3rem;
}

.footer-section h4 {
    font-size: 1.1rem;
}

.footer-section p {
    line-height: 1.8;
    margin-bottom: 15px;
}

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

.footer-section li {
    padding: 8px 0;
}

.footer-section a {
    color: var(--text-gray);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--accent-gold);
}

.footer-section i {
    color: var(--accent-gold);
    margin-right: 10px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    margin-bottom: 15px;
}

.footer-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.footer-links a {
    font-size: 0.9rem;
}

.footer-links span {
    color: rgba(255, 255, 255, 0.3);
}

.footer-tagline {
    margin-top: 15px;
    font-style: italic;
    color: var(--accent-gold);
    font-weight: 500;
}

/* ========================================
   トップに戻るボタン
   ======================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-gold);
    color: var(--primary-dark);
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: var(--shadow-gold);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(212, 175, 55, 0.5);
}

/* ========================================
   UDフォント最適化
   ======================================== */

/* 本文の読みやすさ向上 */
p {
    line-height: 1.8;
    letter-spacing: 0.03em;
}

/* リストの読みやすさ */
li {
    line-height: 1.8;
    letter-spacing: 0.02em;
}

/* ボタンテキスト */
button, .btn, .cta-button {
    letter-spacing: 0.05em;
}

/* 小さいテキスト */
small, .form-help, .form-note {
    line-height: 1.6;
    letter-spacing: 0.02em;
}

/* 数字の可読性向上 */
.result-value,
.amount-value,
.calc-value,
.data-value,
.stat-value {
    font-feature-settings: "tnum", "lnum";
    font-variant-numeric: tabular-nums lining-nums;
}

/* ========================================
   レスポンシブデザイン
   ======================================== */

/* タブレット・ラージスマホ (1024px以下) */
@media (max-width: 1024px) {
    .container {
        padding: 0 30px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .comparison-table {
        font-size: 0.9rem;
    }
    
    .comparison-table thead th,
    .comparison-table tbody td {
        padding: 15px 10px;
    }
}

/* タブレット (968px以下) */
@media (max-width: 968px) {
    /* ナビゲーション */
    .nav {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(10, 25, 41, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        justify-content: flex-start;
        padding: 30px 0;
        gap: 20px;
        transition: var(--transition);
        overflow-y: auto;
        z-index: 999;
    }
    
    .nav.active {
        left: 0;
    }
    
    .nav a {
        font-size: 1.2rem;
        padding: 15px 30px;
        width: 100%;
        text-align: center;
    }
    
    .mobile-menu-toggle {
        display: block;
        z-index: 1001;
    }
    
    /* ヒーローセクション */
    .hero {
        min-height: 90vh;
        padding-top: 100px;
    }
    
    .hero-title {
        font-size: 2rem;
        line-height: 1.4;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-features {
        flex-direction: column;
        gap: 15px;
    }
    
    /* セクション */
    section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    /* グリッドレイアウト */
    .problems-grid,
    .merits-grid,
    .cases-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .models-grid {
        grid-template-columns: 1fr;
    }
    
    /* フローステップ */
    .flow-steps {
        flex-direction: column;
    }
    
    .flow-arrow {
        transform: rotate(90deg);
        margin: 20px 0;
    }
    
    /* 比較表 */
    .comparison-table {
        font-size: 0.85rem;
    }
    
    .comparison-table thead th,
    .comparison-table tbody td {
        padding: 12px 8px;
    }
    
    /* 収益モデル */
    .summary-calc {
        flex-direction: column;
        gap: 15px;
    }
    
    .calc-plus,
    .calc-equals {
        transform: rotate(90deg);
        margin: 10px 0;
    }
    
    /* データグリッド */
    .data-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* スマートフォン (768px以下) */
@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }
    
    /* ヘッダー */
    .logo {
        font-size: 1rem;
    }
    
    .logo i {
        font-size: 1.2rem;
    }
    
    /* ヒーローセクション */
    .hero {
        min-height: 85vh;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-title br {
        display: none;
    }
    
    .hero-subtitle {
        font-size: 0.95rem;
    }
    
    .hero-subtitle br {
        display: none;
    }
    
    .hero-cta {
        padding: 15px 30px;
        font-size: 1rem;
    }
    
    /* セクション */
    section {
        padding: 50px 0;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
    
    /* シミュレーター */
    .simulator-card {
        padding: 30px 20px;
    }
    
    .simulator-input input {
        max-width: 100%;
        font-size: 1.3rem;
    }
    
    .calculate-btn {
        padding: 15px 35px;
        font-size: 1rem;
    }
    
    .result-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .result-value {
        font-size: 2rem;
    }
    
    .result-unit {
        font-size: 1rem;
    }
    
    /* 収益モデル */
    .stage-card {
        padding: 30px 20px;
    }
    
    .amount-value {
        font-size: 1.8rem;
    }
    
    .stage-arrow {
        font-size: 1.5rem;
        margin: 5px 10px;
    }
    
    .calc-value {
        font-size: 1.5rem;
    }
    
    .calc-result .calc-value {
        font-size: 2rem;
    }
    
    .yield-value {
        font-size: 2.5rem;
    }
    
    /* ビジネスモデル */
    .model-card {
        padding: 30px 20px;
    }
    
    .model-badge {
        top: 15px;
        right: 15px;
        font-size: 0.8rem;
        padding: 6px 12px;
    }
    
    /* メリット */
    .merit-icon {
        width: 60px;
        height: 60px;
        font-size: 2rem;
    }
    
    /* 導入事例 */
    .case-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .case-year {
        align-self: flex-end;
    }
    
    .case-stats {
        grid-template-columns: 1fr;
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
    
    /* 市場データ */
    .data-grid {
        grid-template-columns: 1fr;
    }
    
    .data-value {
        font-size: 2.5rem;
    }
    
    .data-value span {
        font-size: 1.3rem;
    }
    
    /* Q&A */
    .faq-question {
        padding: 20px 15px;
        gap: 15px;
    }
    
    .faq-number {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .faq-text {
        font-size: 1rem;
    }
    
    .faq-answer p {
        padding: 0 15px 20px 70px;
        font-size: 0.95rem;
    }
    
    /* フロー */
    .flow-step {
        padding: 35px 20px;
    }
    
    .step-icon {
        font-size: 3rem;
    }
    
    .flow-step h3 {
        font-size: 1.2rem;
    }
    
    .flow-bonus {
        padding: 30px 20px;
    }
    
    .bonus-list {
        grid-template-columns: 1fr;
    }
    
    .bonus-item {
        flex-direction: column;
        text-align: center;
    }
    
    /* 税制詳細 */
    .tax-grid {
        grid-template-columns: 1fr;
    }
    
    /* CTA */
    .cta-form {
        padding: 30px 20px;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-contact {
        padding: 30px 20px;
    }
    
    .phone-link {
        font-size: 2rem;
    }
    
    /* フッター */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

/* 小型スマートフォン (480px以下) */
@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    /* ヘッダー */
    .header-content {
        padding: 12px 0;
    }
    
    .logo span {
        font-size: 0.85rem;
    }
    
    /* ヒーローセクション */
    .hero {
        min-height: auto;
        padding: 100px 0 60px;
    }
    
    .hero-background::before {
        background-position: center center;
        background-size: cover;
    }
    
    .hero-badge {
        font-size: 0.8rem;
        padding: 6px 15px;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .hero-subtitle {
        font-size: 0.9rem;
    }
    
    .hero-subtitle strong {
        font-size: 1.2rem;
    }
    
    .hero-feature {
        font-size: 0.9rem;
    }
    
    .hero-cta {
        padding: 12px 25px;
        font-size: 0.95rem;
    }
    
    /* セクション */
    section {
        padding: 40px 0;
    }
    
    .section-header {
        margin-bottom: 40px;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .section-subtitle {
        font-size: 0.95rem;
    }
    
    /* シミュレーター */
    .simulator-card {
        padding: 25px 15px;
        border-radius: 15px;
    }
    
    .simulator-input label {
        font-size: 1.1rem;
    }
    
    .simulator-input input {
        padding: 12px 15px;
        font-size: 1.2rem;
    }
    
    .calculate-btn {
        padding: 12px 25px;
        font-size: 0.95rem;
    }
    
    .result-item {
        padding: 15px;
    }
    
    .result-item i {
        font-size: 2rem;
    }
    
    .result-value {
        font-size: 1.8rem;
    }
    
    .result-detail h4 {
        font-size: 1.2rem;
    }
    
    .result-detail h4 span {
        font-size: 1.5rem;
    }
    
    /* 問題解決カード */
    .problem-card {
        padding: 30px 20px;
    }
    
    .problem-card h3 {
        font-size: 1.1rem;
    }
    
    /* 比較表 */
    .comparison-table {
        font-size: 0.75rem;
    }
    
    .comparison-table thead th,
    .comparison-table tbody td {
        padding: 10px 5px;
    }
    
    /* 収益モデル */
    .model-summary {
        padding: 30px 20px;
    }
    
    .model-summary h3 {
        font-size: 1.5rem;
    }
    
    .calc-label {
        font-size: 0.9rem;
    }
    
    .calc-value {
        font-size: 1.3rem;
    }
    
    .calc-result .calc-value {
        font-size: 1.8rem;
    }
    
    .summary-yield h4 {
        font-size: 1.5rem;
    }
    
    .yield-value {
        font-size: 2rem;
    }
    
    /* ビジネスモデル */
    .model-card h3 {
        font-size: 1.3rem;
    }
    
    .model-image {
        font-size: 3rem;
    }
    
    /* メリット */
    .merit-card {
        padding: 30px 20px;
    }
    
    .merit-card h3 {
        font-size: 1.2rem;
    }
    
    /* 導入事例 */
    .case-card {
        padding: 25px 20px;
    }
    
    .case-company i {
        font-size: 2rem;
    }
    
    .case-company h3 {
        font-size: 1.1rem;
    }
    
    /* 市場データ */
    .data-card {
        padding: 30px 20px;
    }
    
    .data-icon {
        font-size: 2.5rem;
    }
    
    .data-value {
        font-size: 2rem;
    }
    
    /* Q&A */
    .faq-question {
        padding: 15px 12px;
    }
    
    .faq-number {
        width: 35px;
        height: 35px;
        font-size: 0.9rem;
    }
    
    .faq-text {
        font-size: 0.95rem;
    }
    
    .faq-answer p {
        padding: 0 12px 15px 60px;
        font-size: 0.9rem;
    }
    
    /* フロー */
    .flow-step {
        padding: 30px 15px;
    }
    
    .step-number {
        font-size: 0.9rem;
        padding: 6px 15px;
    }
    
    .step-icon {
        font-size: 2.5rem;
    }
    
    .flow-step h3 {
        font-size: 1.1rem;
    }
    
    .step-details li {
        font-size: 0.9rem;
    }
    
    .flow-bonus h3 {
        font-size: 1.5rem;
    }
    
    .bonus-item {
        padding: 15px;
    }
    
    .bonus-item i {
        font-size: 1.5rem;
    }
    
    .bonus-item p {
        font-size: 0.9rem;
    }
    
    /* 税制詳細 */
    .tax-card {
        padding: 20px;
    }
    
    .tax-card h3 {
        font-size: 1.1rem;
    }
    
    /* CTA */
    .cta-content h2 {
        font-size: 2rem;
    }
    
    .cta-content p {
        font-size: 1rem;
    }
    
    .cta-form {
        padding: 25px 15px;
    }
    
    .form-group label {
        font-size: 0.95rem;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 10px 12px;
        font-size: 0.95rem;
    }
    
    .submit-btn {
        padding: 15px;
        font-size: 1rem;
    }
    
    .cta-contact h3 {
        font-size: 1.3rem;
    }
    
    .phone-link {
        font-size: 1.8rem;
    }
    
    /* トップに戻るボタン */
    .back-to-top {
        width: 45px;
        height: 45px;
        bottom: 20px;
        right: 20px;
        font-size: 1.3rem;
    }
}

/* 超小型スマートフォン (360px以下) */
@media (max-width: 360px) {
    .hero-title {
        font-size: 1.3rem;
    }
    
    .section-title {
        font-size: 1.3rem;
    }
    
    .result-value {
        font-size: 1.5rem;
    }
    
    .amount-value {
        font-size: 1.5rem;
    }
    
    .data-value {
        font-size: 1.8rem;
    }
    
    .comparison-table {
        font-size: 0.7rem;
    }
}

/* ランドスケープモード対応 */
@media (max-width: 968px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: 80px 0 40px;
    }
    
    .hero-background::before {
        background-attachment: scroll;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 0.95rem;
    }
    
    section {
        padding: 40px 0;
    }
}

/* タッチデバイス用の最適化 */
@media (hover: none) and (pointer: coarse) {
    /* タッチターゲットのサイズを大きく */
    button,
    a,
    .faq-question {
        min-height: 44px;
    }
    
    /* ホバーエフェクトを無効化 */
    .nav a:hover::after {
        width: 0;
    }
    
    /* タップハイライトの色を調整 */
    * {
        -webkit-tap-highlight-color: rgba(212, 175, 55, 0.2);
    }
}

/* プリント用スタイル */
@media print {
    header,
    .hero-scroll,
    .back-to-top,
    .mobile-menu-toggle,
    .cta-button {
        display: none;
    }
    
    section {
        page-break-inside: avoid;
    }
    
    .container {
        max-width: 100%;
    }
}