/* ==========================================================================
   トレーラーハウス投資 ランディングページ CSS
   ========================================================================== */

/* --------------------------------------------------------------------------
   リセット & ベーススタイル
   -------------------------------------------------------------------------- */

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

:root {
    /* カラーパレット */
    --primary-color: #0066cc;
    --primary-dark: #004c99;
    --primary-light: #3385d6;
    --secondary-color: #00a86b;
    --accent-color: #ff6b35;
    --text-color: #333333;
    --text-light: #666666;
    --bg-color: #ffffff;
    --bg-light: #f8f9fa;
    --bg-gray: #e9ecef;
    --border-color: #dee2e6;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    
    /* フォント */
    --font-family: 'BIZ UDPGothic', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic', 'Meiryo', sans-serif;
    
    /* スペーシング */
    --section-padding: 80px 0;
    --container-padding: 0 20px;
    
    /* シャドウ */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.15);
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.7;
    font-weight: 400;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* --------------------------------------------------------------------------
   タイポグラフィ
   -------------------------------------------------------------------------- */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 1rem;
    letter-spacing: 0.02em;
}

p {
    line-height: 1.7;
    margin-bottom: 1rem;
    letter-spacing: 0.01em;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: var(--primary-dark);
}

/* --------------------------------------------------------------------------
   コンテナ & グリッド
   -------------------------------------------------------------------------- */

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

.sp-only {
    display: none;
}

/* --------------------------------------------------------------------------
   ヘッダー
   -------------------------------------------------------------------------- */

.header {
    background-color: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

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

.logo {
    flex-shrink: 0;
}

.logo h1,
.logo-title {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 2px;
    font-weight: 700;
    line-height: 1.2;
    display: block;
}

.logo-short {
    display: none;
}

.logo-sub {
    font-size: 0.75rem;
    color: var(--text-light);
    font-weight: 400;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 20px;
}

.header-nav > a:not(.btn) {
    color: var(--text-color);
    font-weight: 400;
    font-size: 0.95rem;
    padding: 8px 12px;
    transition: all 0.3s ease;
}

.header-nav > a:not(.btn):hover {
    color: var(--primary-color);
}

/* --------------------------------------------------------------------------
   ボタン
   -------------------------------------------------------------------------- */

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 700;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: #ffffff;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: #ffffff;
}

.btn-secondary {
    background: linear-gradient(135deg, #ffffff, #f8f9fa);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: var(--primary-color);
}

.btn-large {
    padding: 18px 50px;
    font-size: 1.1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.btn-large small {
    font-size: 0.75rem;
    font-weight: 400;
    opacity: 0.9;
}

.btn-header {
    padding: 10px 25px;
    font-size: 0.9rem;
}

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

.section {
    padding: var(--section-padding);
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 50px;
    color: var(--text-color);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    margin: 20px auto 0;
    border-radius: 2px;
}

.bg-light {
    background-color: var(--bg-light);
}

/* --------------------------------------------------------------------------
   ファーストビュー（ヒーロー）
   -------------------------------------------------------------------------- */

.hero {
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.15) 0%, rgba(0, 82, 163, 0.15) 100%),
                url('https://www.genspark.ai/api/files/s/1SBinXOU') center center / cover no-repeat;
    color: #ffffff;
    padding: 100px 0 120px;
    position: relative;
    overflow: hidden;
    min-height: 800px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 82, 163, 0.0);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    text-shadow: 0 3px 12px rgba(0, 0, 0, 0.6), 0 1px 3px rgba(0, 0, 0, 0.8);
}

.hero-label {
    display: inline-block;
    background-color: var(--accent-color);
    color: #ffffff;
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 25px;
    line-height: 1.5;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 20px;
    line-height: 1.6;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 40px;
    font-weight: 400;
    opacity: 0.95;
    line-height: 1.8;
}

.hero-points {
    max-width: 750px;
    margin: 0 auto 40px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.hero-point {
    background-color: rgba(255,255,255,0.1);
    backdrop-filter: blur(8px);
    padding: 18px 20px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 15px;
    text-align: left;
    border: 1px solid rgba(255,255,255,0.25);
}

.hero-point-icon {
    background-color: rgba(255,255,255,0.25);
    color: #ffffff;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    flex-shrink: 0;
}

.hero-point-text {
    flex: 1;
}

.hero-point-text strong {
    display: block;
    font-size: 1rem;
    margin-bottom: 5px;
    line-height: 1.6;
}

.hero-point-text span {
    font-size: 0.85rem;
    opacity: 0.9;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.hero-cta .btn {
    width: 100%;
    max-width: 500px;
}

.hero-cta-note {
    font-size: 0.9rem;
    opacity: 0.9;
}

.tel-link {
    color: #ffffff;
    font-weight: 700;
    text-decoration: underline;
}

/* --------------------------------------------------------------------------
   課題セクション
   -------------------------------------------------------------------------- */

.problems {
    background-color: #ffffff;
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-bottom: 50px;
}

.problem-card {
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

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

.problem-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

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

.problem-card p {
    font-size: 0.95rem;
    color: var(--text-light);
}

.problems-solution {
    text-align: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
}

.problems-solution-text {
    font-size: 1.5rem;
    margin-bottom: 25px;
    color: var(--text-color);
}

.problems-solution-text strong {
    color: var(--primary-color);
    font-size: 1.8rem;
}

/* --------------------------------------------------------------------------
   なぜ今トレーラーハウスなのか
   -------------------------------------------------------------------------- */

.why-cards {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.why-card {
    background-color: #ffffff;
    border-radius: 15px;
    padding: 40px;
    box-shadow: var(--shadow-md);
    border-left: 5px solid var(--primary-color);
}

.why-card-number {
    color: var(--primary-color);
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.why-card-title {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--text-color);
}

.why-card-content {
    font-size: 1rem;
    line-height: 1.8;
}

.market-growth {
    display: flex;
    flex-direction: column;
    gap: 25px;
    margin-top: 20px;
}

.market-item strong {
    display: block;
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.market-chart {
    margin: 15px 0;
}

.market-bar {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 10px;
}

.market-year {
    font-weight: 700;
    min-width: 80px;
}

.market-bar-fill {
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    color: #ffffff;
    padding: 10px 15px;
    border-radius: 5px;
    font-weight: 700;
    text-align: center;
}

.market-growth-note {
    color: var(--accent-color);
    font-weight: 700;
    margin-top: 10px;
}

.check-list {
    list-style: none;
    margin-top: 15px;
}

.check-list li {
    padding-left: 30px;
    position: relative;
    margin-bottom: 10px;
}

.check-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: 700;
    font-size: 1.2rem;
}

.depreciation-comparison {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin: 25px 0;
    flex-wrap: wrap;
}

.depreciation-item {
    background-color: var(--bg-light);
    padding: 20px 30px;
    border-radius: 10px;
    text-align: center;
}

.depreciation-item.highlight {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: #ffffff;
}

.depreciation-type {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.depreciation-years {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
}

.depreciation-arrow {
    font-size: 2rem;
    color: var(--primary-color);
    font-weight: 700;
}

.depreciation-note {
    background-color: #fff3cd;
    border-left: 4px solid var(--warning-color);
    padding: 15px;
    border-radius: 5px;
    margin-top: 20px;
    font-weight: 400;
}

/* --------------------------------------------------------------------------
   3大メリット
   -------------------------------------------------------------------------- */

.benefits {
    background-color: #ffffff;
}

.benefit-block {
    margin-bottom: 60px;
}

.benefit-block:last-child {
    margin-bottom: 0;
}

.benefit-header {
    text-align: center;
    margin-bottom: 30px;
}

.benefit-number {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #ffffff;
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.benefit-title {
    font-size: 2rem;
    color: var(--text-color);
}

.benefit-description {
    font-size: 1.1rem;
    text-align: center;
    max-width: 900px;
    margin: 0 auto 40px;
    line-height: 1.8;
}

.simulation-box {
    background-color: var(--bg-light);
    border-radius: 15px;
    padding: 40px;
    max-width: 900px;
    margin: 0 auto;
    box-shadow: var(--shadow-md);
}

.simulation-title {
    font-size: 1.5rem;
    text-align: center;
    margin-bottom: 25px;
    color: var(--primary-color);
}

.simulation-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 25px;
    background-color: #ffffff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.simulation-table thead {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: #ffffff;
}

.simulation-table th,
.simulation-table td {
    padding: 15px;
    text-align: left;
}

.simulation-table th {
    font-weight: 700;
}

.simulation-table tbody tr:nth-child(even) {
    background-color: var(--bg-light);
}

.simulation-table .amount {
    text-align: right;
    font-weight: 700;
    font-size: 1.1rem;
}

.simulation-table .amount.highlight {
    color: var(--accent-color);
    font-size: 1.3rem;
}

.simulation-result {
    background-color: #d1ecf1;
    border-left: 4px solid var(--primary-color);
    padding: 20px;
    border-radius: 5px;
}

.result-item {
    margin-bottom: 10px;
    font-size: 1.05rem;
}

.result-item:last-child {
    margin-bottom: 0;
}

.result-item strong {
    color: var(--primary-color);
}

.risk-measures {
    display: flex;
    flex-direction: column;
    gap: 25px;
    max-width: 900px;
    margin: 0 auto;
}

.risk-measure {
    background-color: var(--bg-light);
    padding: 25px;
    border-radius: 10px;
    border-left: 4px solid var(--secondary-color);
}

.risk-measure h4 {
    color: var(--secondary-color);
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.risk-measure ul {
    list-style: none;
    margin: 15px 0;
}

.risk-measure li {
    padding-left: 25px;
    position: relative;
    margin-bottom: 8px;
}

.risk-measure li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: 700;
    font-size: 1.5rem;
}

.risk-note {
    color: var(--accent-color);
    font-weight: 700;
    margin-top: 10px;
}

/* --------------------------------------------------------------------------
   スキーム説明
   -------------------------------------------------------------------------- */

.scheme-diagram {
    max-width: 800px;
    margin: 0 auto;
}

.scheme-step {
    background-color: #ffffff;
    border-radius: 15px;
    padding: 30px;
    box-shadow: var(--shadow-md);
    margin-bottom: 20px;
}

.scheme-step-number {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: #ffffff;
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.scheme-step-content h4 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.scheme-step-content ul {
    list-style: none;
}

.scheme-step-content li {
    padding-left: 25px;
    position: relative;
    margin-bottom: 10px;
}

.scheme-step-content li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: 700;
}

.scheme-arrow {
    text-align: center;
    font-size: 2rem;
    color: var(--primary-color);
    margin: 10px 0;
    font-weight: 700;
}

.scheme-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-top: 15px;
}

.scheme-option {
    background-color: var(--bg-light);
    padding: 15px;
    border-radius: 8px;
    text-align: center;
}

.scheme-option strong {
    display: block;
    color: var(--primary-color);
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.scheme-option p {
    font-size: 0.9rem;
}

/* --------------------------------------------------------------------------
   比較表
   -------------------------------------------------------------------------- */

.comparison-table-wrapper {
    overflow-x: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background-color: #ffffff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    min-width: 700px;
}

.comparison-table thead {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: #ffffff;
}

.comparison-table th,
.comparison-table td {
    padding: 20px;
    text-align: center;
}

.comparison-table th {
    font-weight: 700;
    font-size: 1.1rem;
}

.comparison-table th:first-child,
.comparison-table td:first-child {
    text-align: left;
    font-weight: 700;
}

.comparison-table tbody tr:nth-child(even) {
    background-color: var(--bg-light);
}

.comparison-table .highlight-col {
    background: linear-gradient(180deg, rgba(0,102,204,0.1), rgba(0,102,204,0.05));
    font-weight: 700;
}

.comparison-table tbody .highlight-col {
    color: var(--primary-color);
}

/* --------------------------------------------------------------------------
   導入事例
   -------------------------------------------------------------------------- */

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

.case-card {
    background-color: #ffffff;
    border-radius: 15px;
    padding: 30px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

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

.case-header {
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--bg-light);
}

.case-number {
    display: inline-block;
    background-color: var(--accent-color);
    color: #ffffff;
    padding: 5px 15px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.85rem;
    margin-bottom: 10px;
}

.case-title {
    font-size: 1.2rem;
    color: var(--text-color);
}

.case-section {
    margin-bottom: 20px;
}

.case-section:last-child {
    margin-bottom: 0;
}

.case-section h4 {
    color: var(--primary-color);
    font-size: 1rem;
    margin-bottom: 8px;
}

.case-section p {
    font-size: 0.95rem;
    line-height: 1.6;
}

.case-result {
    background-color: #d1ecf1;
    padding: 15px;
    border-radius: 8px;
}

.case-result p {
    font-weight: 700;
    color: var(--primary-color);
}

/* --------------------------------------------------------------------------
   FAQ
   -------------------------------------------------------------------------- */

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

.faq-item {
    background-color: #ffffff;
    border-radius: 10px;
    margin-bottom: 15px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.faq-question {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background-color: var(--bg-light);
}

.faq-q {
    background-color: var(--primary-color);
    color: #ffffff;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.faq-question h3 {
    flex: 1;
    font-size: 1.1rem;
    color: var(--text-color);
}

.faq-toggle {
    font-size: 2rem;
    font-weight: 400;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    background: white;
    padding: 0 25px;
    color: #555;
    line-height: 1.8;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.3s ease, opacity 0.3s ease, padding 0.3s ease;
    display: flex;
    gap: 15px;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    opacity: 1;
    padding: 25px;
}

.faq-a {
    background-color: var(--secondary-color);
    color: #ffffff;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.faq-answer-text {
    flex: 1;
}

.faq-answer-text p {
    margin-bottom: 15px;
    line-height: 1.8;
}

.faq-answer-text ul {
    margin: 15px 0;
    padding-left: 20px;
}

.faq-answer-text li {
    margin-bottom: 8px;
}

/* --------------------------------------------------------------------------
   デメリット・注意点
   -------------------------------------------------------------------------- */

.caution-intro {
    text-align: center;
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto 40px;
    line-height: 1.8;
}

.caution-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.caution-card {
    background-color: #ffffff;
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow-md);
    border-top: 4px solid var(--warning-color);
}

.caution-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

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

.caution-card p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.7;
}

/* --------------------------------------------------------------------------
   当社の強み
   -------------------------------------------------------------------------- */

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

.strength-card {
    background-color: var(--bg-light);
    border-radius: 15px;
    padding: 35px;
    text-align: center;
    transition: all 0.3s ease;
}

.strength-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    background-color: #ffffff;
}

.strength-icon {
    font-size: 3.5rem;
    margin-bottom: 20px;
}

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

.strength-card p {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-light);
}

/* --------------------------------------------------------------------------
   ご相談の流れ
   -------------------------------------------------------------------------- */

.flow-steps {
    max-width: 800px;
    margin: 0 auto;
}

.flow-step {
    background-color: #ffffff;
    border-radius: 15px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--shadow-md);
    position: relative;
}

.flow-step::after {
    content: '↓';
    position: absolute;
    bottom: -40px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 2rem;
    color: var(--primary-color);
    font-weight: 700;
}

.flow-step:last-child::after {
    display: none;
}

.flow-step-number {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: #ffffff;
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.flow-step h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.flow-step p {
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 10px;
}

.flow-duration {
    display: inline-block;
    background-color: var(--bg-light);
    color: var(--text-light);
    padding: 5px 15px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 700;
}

/* --------------------------------------------------------------------------
   決算までの期間別プラン
   -------------------------------------------------------------------------- */

.deadline-plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.deadline-plan {
    background-color: #ffffff;
    border-radius: 15px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
    border-top: 5px solid var(--primary-color);
}

.deadline-plan-label {
    display: inline-block;
    background-color: var(--accent-color);
    color: #ffffff;
    padding: 5px 15px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.85rem;
    margin-bottom: 15px;
}

.deadline-plan-title {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--text-color);
}

.deadline-plan-content h4 {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.deadline-plan-note {
    background-color: #fff3cd;
    border-left: 4px solid var(--warning-color);
    padding: 15px;
    border-radius: 5px;
    margin-top: 20px;
}

.deadline-cta {
    text-align: center;
    background: linear-gradient(135deg, var(--bg-light), var(--bg-gray));
    padding: 40px;
    border-radius: 15px;
    max-width: 800px;
    margin: 0 auto;
}

.deadline-cta p {
    font-size: 1.1rem;
    margin-bottom: 25px;
    line-height: 1.8;
}

/* --------------------------------------------------------------------------
   音声プレイヤー
   -------------------------------------------------------------------------- */

.audio-section {
    background: linear-gradient(135deg, #f0f7ff 0%, #ffffff 100%);
}

.audio-section .section-title .subtitle {
    display: block;
    font-size: 1.2rem;
    font-weight: 400;
    color: var(--text-light);
    margin-top: 15px;
}

.audio-description {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
    padding: 25px;
    background-color: #fff;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.audio-description p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-color);
}

.audio-player-wrapper {
    max-width: 900px;
    margin: 0 auto 40px;
    background-color: #ffffff;
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow-lg);
}

.audio-player-wrapper iframe {
    border-radius: 8px;
    display: block;
    width: 100%;
    max-width: 100%;
}

.audio-content-summary {
    max-width: 800px;
    margin: 0 auto 40px;
    padding: 30px;
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    border-left: 5px solid var(--primary-color);
}

.audio-content-summary h3 {
    font-size: 1.4rem;
    margin-bottom: 20px;
    color: var(--text-color);
}

.audio-content-summary .check-list {
    list-style: none;
    padding: 0;
}

.audio-content-summary .check-list li {
    font-size: 1.05rem;
    line-height: 2;
    padding-left: 30px;
    position: relative;
}

.audio-content-summary .check-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.2rem;
}

.audio-cta {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    padding: 30px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 15px;
    color: #ffffff;
}

.audio-cta p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    line-height: 1.8;
}

/* --------------------------------------------------------------------------
   Googleフォームセクション
   -------------------------------------------------------------------------- */

.google-form-section {
    background-color: #F9FAFB;
    padding: 60px 0;
}

.google-form-title {
    font-size: 32px;
    text-align: center;
    margin-bottom: 40px;
    color: var(--text-color);
}

.google-form-wrapper {
    max-width: 800px;
    margin: 0 auto;
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 40px;
    overflow: hidden;
}

.google-form-wrapper iframe {
    width: 100%;
    height: 1200px;
    border: none;
}

/* --------------------------------------------------------------------------
   お問い合わせフォーム
   -------------------------------------------------------------------------- */

.contact {
    background: linear-gradient(135deg, var(--bg-light) 0%, #ffffff 100%);
}

.contact-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
}

.contact-intro p {
    font-size: 1.1rem;
    margin-bottom: 15px;
    line-height: 1.8;
}

.contact-phone {
    font-size: 1.3rem;
    font-weight: 700;
    margin: 20px 0 10px;
}

.tel-link-large {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 700;
}

.contact-hours {
    color: var(--text-light);
}

.contact-form {
    max-width: 800px;
    margin: 0 auto;
    background-color: #ffffff;
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow-lg);
}

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

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-color);
}

.form-group label.required::after {
    content: '必須';
    background-color: var(--accent-color);
    color: #ffffff;
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 3px;
    margin-left: 8px;
    font-weight: 700;
}

.label-note {
    display: block;
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--text-light);
    margin-top: 5px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: var(--font-family);
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0,102,204,0.1);
}

.form-group textarea {
    resize: vertical;
}

.form-privacy {
    margin-bottom: 25px;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    margin-top: 4px;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

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

.form-submit .btn {
    min-width: 300px;
}

/* --------------------------------------------------------------------------
   フッター
   -------------------------------------------------------------------------- */

.footer {
    background-color: #2c3e50;
    color: #ffffff;
    padding: 50px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-info h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.footer-info p {
    margin-bottom: 8px;
    opacity: 0.9;
}

.footer-address {
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 12px;
}

.footer-phone a,
.footer-hours {
    color: #ffffff;
    font-weight: 700;
}

.footer-nav {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-nav a {
    color: #ffffff;
    opacity: 0.8;
    transition: all 0.3s ease;
}

.footer-nav a:hover {
    opacity: 1;
    color: var(--primary-light);
}

.footer-copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.2);
}

.footer-copyright p {
    opacity: 0.7;
    font-size: 0.9rem;
}

/* --------------------------------------------------------------------------
   トップへ戻るボタン
   -------------------------------------------------------------------------- */

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 98;
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

/* --------------------------------------------------------------------------
   フローティング問い合わせカード（PC版）
   -------------------------------------------------------------------------- */

.floating-contact-card {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #ffffff;
    border-radius: 15px;
    padding: 25px 20px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 99;
    text-align: center;
    min-width: 280px;
}

.floating-contact-card.show {
    opacity: 1;
    visibility: visible;
}

.floating-contact-icon-circle {
    width: 80px;
    height: 80px;
    background: #ffffff;
    border: 3px solid #2c3e50;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
}

.floating-phone-icon {
    font-size: 2.5rem;
    filter: grayscale(100%);
}

.floating-contact-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 10px;
}

.floating-phone-number {
    display: block;
    font-size: 1.8rem;
    font-weight: 900;
    color: #2c3e50;
    text-decoration: none;
    margin-bottom: 8px;
    letter-spacing: 0.05em;
}

.floating-phone-number:hover {
    color: var(--primary-color);
}

.floating-contact-hours {
    font-size: 0.85rem;
    color: #666;
    margin-bottom: 15px;
    line-height: 1.4;
}

.floating-contact-form-btn {
    display: block;
    background: linear-gradient(135deg, #FFB800, #FFA000);
    color: #ffffff;
    padding: 12px 20px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.3s ease;
}

.floating-contact-form-btn:hover {
    background: linear-gradient(135deg, #FFA000, #FF8F00);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 184, 0, 0.4);
}

/* --------------------------------------------------------------------------
   固定問い合わせバー（スマホ・タブレット版）
   -------------------------------------------------------------------------- */

.fixed-contact-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #ffffff;
    box-shadow: 0 -3px 15px rgba(0, 0, 0, 0.15);
    display: none; /* デフォルトで非表示 */
    z-index: 100;
    padding: 10px;
    gap: 10px;
}

/* PC版（1025px以上）では固定バーを完全非表示 */
@media (min-width: 1025px) {
    .fixed-contact-bar {
        display: none !important;
    }
}

.fixed-contact-bar.show {
    display: flex;
}

.fixed-contact-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 12px 10px;
    border-radius: 10px;
    font-weight: 700;
    transition: all 0.3s ease;
    text-decoration: none;
}

.fixed-contact-phone {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: #ffffff;
}

.fixed-contact-phone:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    transform: translateY(-2px);
}

.fixed-contact-form {
    background: linear-gradient(135deg, var(--secondary-color), #00c97a);
    color: #ffffff;
}

.fixed-contact-form:hover {
    background: linear-gradient(135deg, #00965c, var(--secondary-color));
    transform: translateY(-2px);
}

.fixed-contact-icon {
    font-size: 1.5rem;
    margin-bottom: 5px;
}

.fixed-contact-label {
    font-size: 0.9rem;
    white-space: nowrap;
}



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

/* PC版（1025px以上）: フローティングカードのみ表示、固定バー非表示 */
@media (min-width: 1025px) {
    .fixed-contact-bar {
        display: none !important;
    }
    
    body {
        padding-bottom: 0 !important;
    }
}

/* 小さめのノートPC・大きなタブレット横向き（1200px以下） */
@media (max-width: 1200px) {
    .hero {
        padding: 90px 0 110px;
        min-height: 750px;
    }
    
    .hero-title {
        font-size: 2.5rem;
        line-height: 1.6;
    }
    
    .hero-subtitle {
        font-size: 1.3rem;
        line-height: 1.8;
    }
    
    .container {
        padding: 0 20px;
    }
}

/* タブレット用ヘッダー調整 */
@media (max-width: 1024px) and (min-width: 769px) {
    .hero {
        padding: 80px 0 100px;
        min-height: 700px;
    }
    
    .logo h1 {
        font-size: 1.3rem;
    }
    
    .logo-sub {
        font-size: 0.7rem;
    }
    
    .header-nav > a:not(.btn) {
        font-size: 0.85rem;
        padding: 6px 8px;
    }
    
    .header-nav {
        gap: 10px;
    }
    
    .btn-header {
        padding: 8px 18px;
        font-size: 0.85rem;
    }
    
    /* タブレットでも固定バーを表示 */
    .floating-contact-card {
        display: none !important;
    }
    
    .fixed-contact-bar {
        display: flex !important;
    }
    
    body {
        padding-bottom: 80px;
    }
}

@media (max-width: 768px) {
    .sp-only {
        display: inline;
    }
    
    /* フローティングカードを非表示、固定バーを表示 */
    .floating-contact-card {
        display: none !important;
    }
    
    .fixed-contact-bar {
        display: flex !important;
    }
    
    /* フッターの余白を追加（固定バーの高さ分） */
    body {
        padding-bottom: 80px;
    }
    
    :root {
        --section-padding: 50px 0;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    /* ヘッダーをコンパクトに */
    .header-content {
        padding: 8px 0;
    }
    
    .logo {
        max-width: 70%;
    }
    
    .logo-full {
        display: none;
    }
    
    .logo-short {
        display: inline;
    }
    
    .logo h1,
    .logo-title {
        font-size: 1rem;
        line-height: 1.2;
    }
    
    .logo-sub {
        font-size: 0.6rem;
        margin-top: 2px;
    }
    
    /* ヘッダーナビゲーションをモバイルで非表示 */
    .header-nav > a:not(.btn) {
        display: none;
    }
    
    .header-nav {
        gap: 0;
    }
    
    .btn-header {
        padding: 6px 12px;
        font-size: 0.8rem;
        white-space: nowrap;
        flex-shrink: 0;
    }
    
    html {
        font-size: 16px; /* 14px→16pxに拡大 */
    }
    
    :root {
        --section-padding: 25px 0;
        --container-padding: 0 10px;
    }
    
    .container {
        padding: 0 10px;
    }
    
    .section {
        padding: 25px 0;
    }
    
    .section-title {
        font-size: 1.5rem; /* 1.3rem→1.5rem */
        margin-bottom: 20px;
    }
    
    .section-subtitle {
        font-size: 1rem; /* 0.85rem→1rem */
    }
}
    

    /* =============================================
       スマホ版 (768px以下) - 情報量50%削減
       ============================================= */
    
    .hero {
        padding: 30px 0 60px;
        min-height: 500px;
    }
    
    .hero-title {
        font-size: 1.5rem; /* 1.3rem→1.5rem */
        line-height: 1.6;
        margin-bottom: 10px;
    }
    
    .hero-subtitle {
        font-size: 1rem; /* 0.85rem→1rem */
        line-height: 1.7;
        margin-bottom: 20px;
    }
    
    .hero-label {
        font-size: 0.75rem; /* 0.65rem→0.75rem */
        padding: 4px 10px;
        margin-bottom: 12px;
        line-height: 1.5;
    }
    
    .hero-points {
        gap: 8px;
        margin-bottom: 20px;
    }
    
    .hero-point {
        flex-direction: row;
        text-align: left;
        padding: 8px 10px;
    }
    
    .hero-point-icon {
        width: 28px;
        height: 28px;
        font-size: 0.75rem; /* 0.7rem→0.75rem */
        margin-right: 8px;
    }
    
    .hero-point-text strong {
        font-size: 0.9rem; /* 0.75rem→0.9rem */
        line-height: 1.5;
    }
    
    .hero-point-text span {
        font-size: 0.8rem; /* 0.65rem→0.8rem */
        line-height: 1.6;
    }
    
    .hero-cta-note {
        font-size: 0.9rem; /* 0.75rem→0.9rem */
        line-height: 1.5;
    }
    
    .hero-cta-note::after {
        content: '\A';
        white-space: pre;
    }
    
    .tel-link {
        display: block;
        margin-top: 5px;
        font-size: 1.4rem; /* 1.2rem→1.4rem */
    }
    
    .btn-large {
        padding: 12px 24px;
        font-size: 1rem; /* 0.9rem→1rem */
    }
    
    /* 課題セクション - カードを2つに削減 */
    .problems {
        margin-top: 0;
        padding-top: 30px;
        border-top: none;
    }
    
    .problems-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .problem-card:nth-child(n+3) {
        display: none; /* 3つ目以降のカードを非表示 */
    }
    
    .problem-card {
        padding: 15px 10px;
    }
    
    .problem-icon {
        font-size: 1.8rem; /* 1.6rem→1.8rem */
        margin-bottom: 8px;
    }
    
    .problem-card h3 {
        font-size: 1.05rem; /* 0.9rem→1.05rem */
        margin-bottom: 6px;
    }
    
    .problem-card p {
        font-size: 0.9rem; /* 0.75rem→0.9rem */
        line-height: 1.5;
    }
    
    .why-card {
        padding: 15px 10px;
    }
    
    /* WHYカード - 2つ目以降を非表示 */
    .why-card:nth-child(n+2) {
        display: none;
    }
    
    .why-card-title {
        font-size: 1.15rem; /* 1rem→1.15rem */
        margin-bottom: 10px;
    }
    
    .why-card p {
        font-size: 0.9rem; /* 0.75rem→0.9rem */
        line-height: 1.6;
    }
    
    /* チェックリスト - 2項目まで表示 */
    .check-list li:nth-child(n+3) {
        display: none;
    }
    
    .check-list li {
        font-size: 0.9rem; /* 0.75rem→0.9rem */
        line-height: 1.6;
        padding-left: 20px;
    }
    
    .why-card-icon {
        font-size: 1.8rem;
        margin-bottom: 10px;
    }
    
    .depreciation-comparison {
        flex-direction: row;
        gap: 8px;
    }
    
    .depreciation-item {
        padding: 10px 12px;
        flex: 1;
        min-width: 0;
    }
    
    .depreciation-type {
        font-size: 0.8rem; /* 0.7rem→0.8rem */
        margin-bottom: 4px;
    }
    
    .depreciation-years {
        font-size: 1.1rem; /* 1rem→1.1rem */
    }
    
    .depreciation-arrow {
        font-size: 1.2rem;
        flex-shrink: 0;
    }
    
    .depreciation-note {
        font-size: 0.85rem; /* 0.75rem→0.85rem */
        padding: 10px;
    }
    
    .benefit-title {
        font-size: 1.15rem; /* 1rem→1.15rem */
        margin-bottom: 10px;
    }
    
    .benefit-number {
        font-size: 0.75rem; /* 0.7rem→0.75rem */
        padding: 3px 8px;
    }
    
    .benefit-block {
        margin-bottom: 30px;
    }
    
    /* メリット3を非表示 */
    .benefit-block:nth-child(4) {
        display: none;
    }
    
    .benefit-block p {
        font-size: 0.9rem; /* 0.75rem→0.9rem */
        line-height: 1.6;
        margin-bottom: 10px;
    }
    
    .simulation-box {
        padding: 12px 8px;
    }
    
    .simulation-box h4 {
        font-size: 1rem; /* 0.9rem→1rem */
        margin-bottom: 10px;
    }
    
    .simulation-table {
        font-size: 0.8rem; /* 0.7rem→0.8rem */
    }
    
    .simulation-table th,
    .simulation-table td {
        padding: 5px 3px;
    }
    
    .result-item {
        font-size: 0.9rem; /* 0.75rem→0.9rem */
        margin: 6px 0;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: 6px 3px;
        font-size: 0.8rem; /* 0.7rem→0.8rem */
    }
    
    .comparison-table-wrapper {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        margin: 0 -12px;
        padding: 0 12px;
    }
    
    /* 事例 - 2つまで表示 */
    .cases {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .case-card:nth-child(n+3) {
        display: none;
    }
    
    .case-card {
        padding: 12px 10px;
    }
    
    .case-card h3 {
        font-size: 1rem; /* 0.9rem→1rem */
        margin-bottom: 8px;
    }
    
    .case-card h4 {
        font-size: 0.9rem; /* 0.8rem→0.9rem */
        margin-bottom: 6px;
    }
    
    .case-card p,
    .case-card li {
        font-size: 0.85rem; /* 0.7rem→0.85rem */
        line-height: 1.5;
    }
    
    /* 音声セクション簡略化 */
    .audio-section .section-title .subtitle {
        font-size: 0.9rem; /* 0.8rem→0.9rem */
    }
    
    .audio-description,
    .audio-player-wrapper,
    .audio-content-summary,
    .audio-cta {
        padding: 12px 8px;
    }
    
    .audio-description p {
        font-size: 0.9rem; /* 0.8rem→0.9rem */
        line-height: 1.6;
    }
    
    .audio-content-summary h3 {
        font-size: 1.05rem; /* 0.95rem→1.05rem */
        margin-bottom: 10px;
    }
    
    /* 音声コンテンツリスト - 3項目まで */
    .audio-content-summary .check-list li:nth-child(n+4) {
        display: none;
    }
    
    .audio-content-summary .check-list li {
        font-size: 0.9rem; /* 0.75rem→0.9rem */
        padding-left: 18px;
        line-height: 1.7;
    }
    
    .audio-cta p {
        font-size: 0.9rem; /* 0.8rem→0.9rem */
        line-height: 1.6;
    }
    
    /* FAQ - 3つまで表示 */
    .faq-item:nth-child(n+4) {
        display: none;
    }
    
    .faq-question h3 {
        font-size: 1rem; /* 0.9rem→1rem */
    }
    
    .faq-answer-text {
        font-size: 0.9rem; /* 0.75rem→0.9rem */
        line-height: 1.6;
    }
    
    /* デメリット・注意点 - 2つまで表示 */
    .caution-card:nth-child(n+3) {
        display: none;
    }
    
    .caution-card {
        padding: 12px 10px;
    }
    
    .caution-card h3 {
        font-size: 1rem; /* 0.9rem→1rem */
    }
    
    .caution-card p {
        font-size: 0.85rem; /* 0.7rem→0.85rem */
        line-height: 1.5;
    }
    
    /* 強み - 2つまで表示 */
    .strength-card:nth-child(n+3) {
        display: none;
    }
    
    .strength-card {
        padding: 15px 10px;
    }
    
    .strength-card h3 {
        font-size: 1rem; /* 0.9rem→1rem */
    }
    
    .strength-card p {
        font-size: 0.85rem; /* 0.7rem→0.85rem */
        line-height: 1.5;
    }
    
    /* フロー - 3ステップまで表示 */
    .flow-step:nth-child(n+4) {
        display: none;
    }
    
    .flow-step {
        padding: 15px 10px;
    }
    
    .flow-step h3 {
        font-size: 1rem; /* 0.9rem→1rem */
    }
    
    .flow-step p {
        font-size: 0.85rem; /* 0.7rem→0.85rem */
        line-height: 1.5;
    }
    
    .contact-form {
        padding: 15px 10px;
    }
    
    .form-group label {
        font-size: 0.9rem; /* 0.8rem→0.9rem */
    }
    
    .contact-intro {
        padding: 0 8px;
        margin-bottom: 20px;
    }
    
    .contact-intro p {
        font-size: 0.9rem; /* 0.8rem→0.9rem */
        margin-bottom: 8px;
    }
    
    .contact-phone {
        font-size: 0.95rem; /* 0.85rem→0.95rem */
        line-height: 1.6;
        margin: 10px 0;
    }
    
    .tel-link-large {
        display: block;
        margin-top: 6px;
        font-size: 1.7rem; /* 1.5rem→1.7rem */
        text-align: center;
    }
    
    .contact-hours {
        font-size: 0.85rem; /* 0.75rem→0.85rem */
    }
    
    .contact-form {
        padding: 15px 10px;
    }
    
    /* Googleフォームセクション - スマホ対応 */
    .google-form-wrapper {
        padding: 20px;
    }
    
    .google-form-title {
        font-size: 1.5rem;
        margin-bottom: 25px;
    }
    
    .form-group {
        margin-bottom: 12px;
    }
    
    .form-group label {
        font-size: 0.9rem; /* 0.8rem→0.9rem */
        margin-bottom: 5px;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        font-size: 1rem; /* 0.85rem→1rem */
        padding: 10px; /* 8px→10px */
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .form-submit .btn {
        min-width: 100%;
        font-size: 1.05rem; /* フォント追加 */
    }
    
    .deadline-plans-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .deadline-plan {
        padding: 15px 10px;
    }
    
    .deadline-plan-label {
        font-size: 0.8rem; /* 0.7rem→0.8rem */
        padding: 3px 8px;
    }
    
    .deadline-plan-title {
        font-size: 1rem; /* 0.9rem→1rem */
        margin-bottom: 10px;
    }
    
    .deadline-plan h4 {
        font-size: 1rem; /* 0.9rem→1rem */
        margin-bottom: 10px;
    }
    
    .deadline-plan li {
        font-size: 0.9rem; /* 0.8rem→0.9rem */
        line-height: 1.7;
    }
    
    .deadline-plan-note {
        font-size: 0.9rem; /* 0.85rem→0.9rem */
    }
    
    .strengths-grid,
    .caution-cards {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .strength-card,
    .caution-card {
        padding: 15px 12px;
    }
    
    .strength-icon,
    .caution-icon {
        font-size: 2rem;
        margin-bottom: 10px;
    }
    
    .strength-card h3,
    .caution-card h3 {
        font-size: 1rem;
        margin-bottom: 8px;
    }
    
    .strength-card p,
    .caution-card p {
        font-size: 0.8rem;
        line-height: 1.5;
    }
    
    .footer-content {
        flex-direction: column;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
}

/* =============================================
   極小スマホ版 (480px以下) - さらに削減
   ============================================= */
@media (max-width: 480px) {
    html {
        font-size: 15px; /* 13px→15px */
    }
    
    .hero {
        padding: 25px 0 50px;
        min-height: 450px;
    }
    
    .hero-title {
        font-size: 1.35rem; /* 1.2rem→1.35rem */
        line-height: 1.55;
    }
    
    .hero-subtitle {
        font-size: 0.95rem; /* 0.8rem→0.95rem */
        line-height: 1.7;
    }
    
    .hero-point {
        padding: 6px 8px;
    }
    
    .hero-point-icon {
        width: 26px;
        height: 26px;
        font-size: 0.7rem; /* 0.65rem→0.7rem */
    }
    
    .hero-point-text strong {
        font-size: 0.85rem; /* 0.7rem→0.85rem */
        line-height: 1.5;
    }
    
    .hero-point-text span {
        font-size: 0.75rem; /* 0.6rem→0.75rem */
        line-height: 1.6;
    }
    
    .section {
        padding: 20px 0;
    }
    
    .section-title {
        font-size: 1.25rem; /* 1.1rem→1.25rem */
        margin-bottom: 15px;
    }
    
    .section-title::after {
        margin-top: 8px;
        width: 40px;
    }
    
    .audio-section .section-title .subtitle {
        font-size: 0.85rem; /* 0.75rem→0.85rem */
    }
    
    .container {
        padding: 0 8px;
    }
    
    .btn-large {
        padding: 10px 20px;
        font-size: 0.95rem; /* 0.85rem→0.95rem */
    }
    
    .problems {
        margin-top: 0;
        padding-top: 20px;
    }
    
    .problem-card,
    .why-card,
    .benefit-block,
    .case-card {
        padding: 10px 8px;
    }
    
    .simulation-table,
    .comparison-table {
        font-size: 0.75rem; /* 0.65rem→0.75rem */
    }
    
    .faq-item {
        margin-bottom: 6px;
    }
    
    .faq-question {
        padding: 8px;
    }
    
    .faq-question h3 {
        font-size: 0.95rem; /* 追加 */
    }
    
    .faq-answer-text {
        font-size: 0.85rem; /* 追加 */
    }
    
    .contact-intro p {
        font-size: 0.85rem; /* 追加 */
    }
    
    .form-group label {
        font-size: 0.85rem; /* 追加 */
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        font-size: 0.95rem; /* 追加 */
    }
    
    /* Googleフォームセクション - 極小スマホ対応 */
    .google-form-wrapper {
        padding: 15px;
    }
    
    .google-form-title {
        font-size: 1.3rem;
        margin-bottom: 20px;
    }
}
    
    .faq-question h3 {
        font-size: 0.9rem;
    }
    
    .faq-answer {
        padding: 0 12px;
    }
    
    .faq-answer-text p,
    .faq-answer-text li {
        font-size: 0.8rem;
        line-height: 1.6;
    }
    
    .flow-step {
        padding: 20px 15px;
        margin-bottom: 20px;
    }
    
    .flow-step-number {
        font-size: 0.8rem;
        padding: 6px 15px;
    }
    
    .flow-step h3 {
        font-size: 1rem;
        margin-bottom: 10px;
    }
    
    .flow-step p {
        font-size: 0.8rem;
        line-height: 1.5;
    }
    
    .flow-duration {
        font-size: 0.75rem;
        padding: 4px 12px;
    }
    
    .audio-player-wrapper {
        padding: 15px;
    }
    
    .audio-content-summary .check-list li {
        font-size: 0.85rem;
        padding-left: 25px;
    }
    
    .simulation-table {
        font-size: 0.75rem;
    }
    
    /* 超小型画面用ヘッダー最適化 */
    .header-content {
        padding: 6px 0;
    }
    
    .logo {
        max-width: 65%;
    }
    
    .logo-full {
        display: none;
    }
    
    .logo-short {
        display: inline;
    }
    
    .logo h1,
    .logo-title {
        font-size: 0.9rem;
        line-height: 1.1;
    }
    
    .logo-sub {
        font-size: 0.55rem;
        margin-top: 1px;
    }
    
    .btn-header {
        padding: 5px 10px;
        font-size: 0.75rem;
    }
}