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

body {
    font-family: 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Meiryo', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

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

/* ヘッダースタイル */
.header {
    background: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

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

.logo img {
    height: 240px;
    width: auto;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 30px;
    margin-left: auto;
    margin-right: 20px;
}

.nav-list a {
    text-decoration: none;
    color: #333;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-list a:hover {
    color: #2E9AD0;
}

.header-buttons {
    display: flex;
    gap: 10px;
}

.btn-download,
.btn-inquiry {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-download {
    background: #f8f9fa;
    color: #333;
    border: 1px solid #e9ecef;
}

.btn-download:hover {
    background: #e9ecef;
}

.btn-inquiry {
    background: #2E9AD0;
    color: white;
}

.btn-inquiry:hover {
    background: #2580b8;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    gap: 4px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: #333;
    transition: 0.3s;
}

/* ヒーローセクション */
.hero {
    margin-top: 70px;
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-image {
    border-radius: 0 !important;
}

.hero-image img {
    width: 100%;
}

.hero-title {
    font-size: 48px;
    font-weight: bold;
    color: #2E9AD0;
    line-height: 1.3;
    margin-bottom: 30px;
}

.hero-description {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 40px;
    color: #555;
}

.hero-download-card {
    background: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    gap: 20px;
}

.hero-download-card img {
    width: 80px;
    height: auto;
}

.btn-download-hero {
    display: inline-block !important;
    visibility: visible !important;
    opacity: 1 !important;
    position: relative !important;
    z-index: 10 !important; /* ✅ 画像や他要素の下に隠れないように */
    background: #ff6b35;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 4px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s;
    font-size: 20px;
}

.btn-download-hero:hover {
    background: #e55a2b;
}

.hero-right {
    position: relative;
    height: 400px;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-start;
    padding: 40px 0;
}

.hero-message {
    color: white;
    font-size: 24px;
}

.hero-text-top {
    flex: 0 0 auto;
}

.hero-text-middle {
    flex: 1 1 auto;
    display: flex;
    align-items: center;
}

/* ヒーローセクションのCTAボタン強制表示 */
.hero-cta-bottom {
    display: flex !important;
    justify-content: center !important;
    margin-top: 20px;       /* ✅ 画像やテキストから離して衝突回避 */
    overflow: visible !important; /* ✅ Safariでの消失防止 */
    flex: 0 0 auto;
    width: 100%;
    position: relative;
    z-index: 100;
}

.hero-cta-bottom .btn-download-hero {
    width: 100%;
    max-width: 600px;
    text-align: center;
    line-height: 1.4;
}

/* 機能カードセクション */
.feature-cards {
    padding: 80px 0;
    background: #f0f8ff;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: white;
    border-radius: 12px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.card-icon {
    margin-bottom: 20px;
}

.card-icon img {
    width: 240px;
    height: auto;
}

.feature-card h3 {
    font-size: 18px;
    line-height: 1.4;
    margin-bottom: 20px;
    color: #333;
}

.card-btn {
    background: #2E9AD0;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 4px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s;
}

.card-btn:hover {
    background: #2580b8;
}

/* 価値提案セクション */
.value-proposition {
    padding: 80px 0;
    text-align: center;
}

.section-title {
    font-size: 36px;
    font-weight: bold;
    color: #2E9AD0;
    margin-bottom: 40px;
    text-align: center;
}

.value-illustration {
    margin: 40px 0;
}

.value-illustration img {
    max-width: 600px;
    width: 100%;
    height: auto;
}

.value-description {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 40px;
    color: #555;
}

.btn-details {
    background: #2E9AD0;
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 6px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s;
}

.btn-details:hover {
    background: #2580b8;
}

/* ビジネス効果セクション */
.business-benefits {
    padding: 80px 0;
    background: #fafafa;
}

.benefit-section {
    margin-bottom: 100px;
    position: relative;
}

.benefit-number {
    position: absolute;
    top: -20px;
    left: 0;
    font-size: 120px;
    font-weight: bold;
    color: #e9ecef;
    z-index: 1;
}

.benefit-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    z-index: 2;
    gap: 30px;
}

.benefit-title {
    font-size: 28px;
    font-weight: bold;
    color: #2E9AD0;
    margin-bottom: 15px;
    line-height: 1.3;
    text-align: center;
}

.benefit-description {
    font-size: 18px;
    color: #ed6c02;
    margin-bottom: 20px;
    font-weight: bold;
    text-align: center;
}

.benefit-detail {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 30px;
    color: #555;
    text-align: center;
    max-width: 600px;
}

.benefit-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 10px;
}

.feature-item img {
    width: 60px;
    height: 60px;
}

.feature-item span {
    font-size: 12px;
    color: #555;
    line-height: 1.3;
}

.benefit-left {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.benefit-left img {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.benefit-right img {
    width: 100%;
    max-width: 500px;
    height: auto;
}

/* ダウンロードセクション */
.download-section {
    padding: 60px 0;
    background: linear-gradient(135deg, #4ABCE8 0%, #2E9AD0 100%);
    color: white;
}

.download-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 40px;
}

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

.download-left h2 {
    font-size: 28px;
    font-weight: bold;
    margin-bottom: 20px;
}

.btn-download-white {
    background: white;
    color: #2E9AD0;
    border: none;
    padding: 15px 60px;
    border-radius: 6px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
    min-width: 300px;
}

.btn-download-white:hover {
    background: #f8f9fa;
    transform: translateY(-2px);
}

.download-right img {
    width: 200px;
    height: auto;
}

/* ビジネス課題解決セクション */
.business-solutions {
    padding: 80px 0;
}

.section-description {
    text-align: center;
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 60px;
    color: #555;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.solution-card {
    background: white;
    border-radius: 12px;
    padding: 40px;
    text-align: center;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s;
}

.solution-card:hover {
    transform: translateY(-4px);
}

.solution-title {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 20px;
    color: #2E9AD0;
    line-height: 1.4;
}

.solution-description {
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 30px;
    color: #555;
}

.solution-icon {
    margin: 30px 0;
}

.solution-icon img {
    width: 300px;
    height: auto;
}

/* データベースセクション */
.database-section {
    padding: 80px 0;
    background: #f0f8ff;
    overflow: visible;
}

.database-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    overflow: visible;
}

.database-left {
    order: 1;
}

.database-right {
    order: 2;
}

.database-left img {
    width: 100%;
    height: auto;
    max-width: 500px;
    object-fit: contain;
}

.database-title {
    font-size: 28px;
    font-weight: bold;
    color: #2E9AD0;
    margin-bottom: 20px;
    line-height: 1.3;
}

.database-description {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 40px;
    color: #555;
}

.database-features {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 40px;
}

.db-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.db-feature-icon img {
    width: 120px;
    height: 120px;
}

.db-feature-content h4 {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 5px;
    color: #333;
}

.db-feature-content p {
    font-size: 14px;
    color: #666;
    line-height: 1.4;
}

.btn-outline {
    background: transparent;
    color: #2E9AD0;
    border: 2px solid #2E9AD0;
    padding: 12px 24px;
    border-radius: 6px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-outline:hover {
    background: #2E9AD0;
    color: white;
}

/* 市場シェアセクション */
.market-share {
    padding: 80px 0;
    text-align: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 60px;
    margin: 60px 0;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.stat-item h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #ed6c02;
    font-weight: bold;
}

.stat-number {
    font-size: 64px;
    font-weight: bold;
    color: #2E9AD0;
    margin-bottom: 20px;
}

.percent,
.unit {
    font-size: 32px;
}

.stat-chart img {
    width: 150px;
    height: auto;
}

.companies-logos {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 30px;
    align-items: center;
    margin-top: 60px;
}

.companies-logos img {
    width: 120px;
    height: auto;
    opacity: 0.7;
    transition: opacity 0.3s;
}

.companies-logos img:hover {
    opacity: 1;
}

/* 導入事例セクション */
.case-studies {
    padding: 80px 0;
    background: #fafafa;
    text-align: center;
}

.case-illustration {
    margin-bottom: 40px;
    display: flex;
    justify-content: center;
}

.case-illustration img {
    width: 400px;
    height: 200px;
    object-fit: cover;
    border-radius: 400px 400px 0 0;
    overflow: hidden;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin: 60px 0;
}

.case-item {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s;
}

.case-item:hover {
    transform: translateY(-4px);
}

.case-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.case-content {
    padding: 30px 20px;
}

.case-content h3 {
    font-size: 16px;
    font-weight: bold;
    line-height: 1.4;
    margin-bottom: 20px;
    color: #333;
}

.case-company {
    font-size: 14px;
    color: #666;
    margin-bottom: 20px;
}

.case-btn {
    background: #2E9AD0;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s;
}

.case-btn:hover {
    background: #2580b8;
}

/* 業種別導入事例セクション */
.industry-cases {
    padding: 80px 0;
    text-align: center;
}

.industry-illustration {
    margin-bottom: 40px;
}

.industry-illustration img {
    width: 200px;
    height: auto;
}

.industry-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    max-width: 1000px;
    margin: 0 auto;
}

.industry-btn {
    background: white;
    color: #2E9AD0;
    border: 2px solid #e9ecef;
    padding: 15px 20px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
}

.industry-btn:hover {
    background: #2E9AD0;
    color: white;
    border-color: #2E9AD0;
}

/* お問い合わせセクション */
.contact-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #4ABCE8 0%, #2E9AD0 100%);
    color: white;
    text-align: center;
}

.contact-title {
    font-size: 28px;
    font-weight: bold;
    margin-bottom: 60px;
    line-height: 1.4;
}

.contact-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.contact-option {
    background: white;
    color: #333;
    border-radius: 12px;
    padding: 40px 30px;
    text-align: center;
}

.contact-icon {
    margin-bottom: 20px;
}

.contact-icon img {
    width: 80px;
    height: auto;
}

.contact-option h3 {
    font-size: 16px;
    line-height: 1.4;
    margin-bottom: 20px;
    color: #333;
}

.btn-contact,
.btn-download-contact {
    background: #2E9AD0;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s;
}

.btn-contact:hover,
.btn-download-contact:hover {
    background: #2580b8;
}

/* フッター */
.footer {
    background: #f8f9fa;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 20px;
    color: #333;
}

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

.footer-section li {
    margin-bottom: 8px;
}

.footer-section a {
    color: #666;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: #2E9AD0;
}

.footer-bottom {
    border-top: 1px solid #e9ecef;
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-services {
    display: flex;
    align-items: center;
    gap: 20px;
}

.service-link {
    color: #2E9AD0;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s;
}

.service-link:hover {
    color: #2580b8;
}

.footer-social {
    display: flex;
    gap: 15px;
}

.social-link img {
    width: 24px;
    height: 24px;
    opacity: 0.6;
    transition: opacity 0.3s;
}

.social-link:hover img {
    opacity: 1;
}

.footer-legal {
    display: flex;
    gap: 20px;
}

.footer-legal a {
    color: #666;
    text-decoration: none;
    font-size: 14px;
}

.footer-copyright {
    color: #666;
    font-size: 14px;
}

/* ★ 横3列のグリッド設定 */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto 48px;
    padding: 0 20px;
}

@media (min-width: 768px) {
    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }
}

.pricing-card {
    background: white;
    border: 2px solid #f1f5f9;
    border-radius: 16px;
    padding: 40px 28px;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: visible;
    min-height: 500px;
    transform: translateY(0);
    margin-top: 30px;
}

.pricing-card.enhanced {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border: 2px solid #3b82f6;
    box-shadow: 0 15px 35px rgba(59, 130, 246, 0.15);
}

.pricing-card.enhanced::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: linear-gradient(90deg, #3b82f6, #10b981);
    border-radius: 16px 16px 0 0;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    border-color: #3b82f6;
}

.pricing-card.enhanced:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(59, 130, 246, 0.2);
}

.pricing-card.featured {
    border: 2px solid var(--primary-600);
    background: linear-gradient(135deg, #fefefe, #f0f9ff);
}

.pricing-card.featured.enhanced:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.15);
    border-color: var(--primary);
}

/* Plan header enhancements */
.pricing-header {
    margin-bottom: 30px;
}

.plan-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 8px 16px rgba(59, 130, 246, 0.3);
}

.plan-icon i {
    font-size: 32px;
    color: white;
}

.pricing-header h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    color: #1f2937;
}

.pricing-badge {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: white;
    padding: 10px 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 700;
    box-shadow: 0 4px 8px rgba(245, 158, 11, 0.3);
    white-space: nowrap;
    z-index: 10;
}

.campaign-banner {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 8px;
    display: inline-block;
}

.plan-subtitle {
    font-size: var(--fs-sm);
    color: var(--text-muted);
    margin-bottom: 24px;
    font-weight: 600;
}

/* Price display */
.price {
    margin: 25px 0;
    padding: 20px 0;
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
    border-radius: 12px;
}

.price-amount-row {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 6px;
}

.currency {
    font-size: 28px;
    font-weight: 700;
    color: #3b82f6;
}

.amount {
    font-size: 56px;
    font-weight: 900;
    color: #3b82f6;
    line-height: 1;
}

.period {
    font-size: 20px;
    color: #64748b;
    font-weight: 500;
}

/* Price comparison */
.price-comparison {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 8px;
}

.old-price {
    font-size: var(--fs-lg);
    color: var(--text-muted);
    text-decoration: line-through;
}

.savings {
    background: var(--success);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: var(--fs-sm);
    font-weight: 700;
}

/* Features enhancement */
.features-header {
    margin-bottom: 16px;
}

.features-header h4 {
    font-size: var(--fs-md);
    font-weight: 700;
    color: var(--text);
    text-align: left;
}

.pricing-features {
    flex-grow: 1;
    margin-bottom: 30px;
}

.pricing-features ul {
    text-align: left;
    margin: 0;
    list-style: none;
    padding: 0;
}

.pricing-features li {
    padding: 12px 0;
    border-bottom: 1px solid #f1f5f9;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;
    font-size: 15px;
    color: #4b5563;
}

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

.pricing-features li i {
    color: #10b981;
    font-size: 18px;
    min-width: 18px;
}

.pricing-features li strong {
    color: #1f2937;
    font-weight: 600;
}

.pricing-features li span {
    display: block;
}

.pricing-features li small {
    color: var(--text-muted);
    font-style: italic;
}

/* Value proposition */
/* 価値提案セクション */
.value-proposition {
    padding: 80px 0;
    text-align: center;
}

.value-proposition.featured {
    background: linear-gradient(135deg, #fef3c7, #fed7aa);
    border-color: #f59e0b;
    box-shadow: 0 4px 8px rgba(245, 158, 11, 0.2);
}

.value-highlight {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: #065f46;
    font-weight: 700;
    font-size: 14px;
}

.value-highlight i {
    color: #10b981;
    font-size: 16px;
}

/* ============== FAQ Section ============== */
.contact-section {
    background: #f8fafc;
    padding: 80px 0;
}

.contact-title {
    text-align: center;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 50px;
    color: #1f2937;
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

.faq-item {
    background: white;
    border: 2px solid #e5e7eb;
    border-radius: 16px;
    margin-bottom: 20px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: #3b82f6;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.15);
}

.faq-item.active {
    border-color: #3b82f6;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.2);
}

.faq-question {
    padding: 28px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: background 0.3s ease;
    user-select: none;
}

.faq-question:hover {
    background: rgba(59, 130, 246, 0.05);
}

.faq-question h3 {
    font-size: 18px;
    font-weight: 600;
    color: #1f2937;
    margin: 0;
    line-height: 1.4;
}

.faq-question i {
    font-size: 20px;
    color: #3b82f6;
    transition: transform 0.3s ease;
    min-width: 20px;
    margin-left: 16px;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    padding: 0 32px;
    transition: all 0.4s ease;
    background: rgba(248, 250, 252, 0.5);
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 0 32px 28px;
}

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

.faq-answer p {
    color: #6b7280;
    line-height: 1.7;
    font-size: 16px;
    margin: 0;
    padding-top: 8px;
}



/* レスポンシブデザイン */
@media (max-width: 768px) {
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        z-index: 999;
    }

    .nav.mobile-open {
        display: block;
    }

    .nav-list {
        flex-direction: column;
        padding: 20px;
        gap: 15px;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .header-content {
        justify-content: center;
        position: relative;
    }

    .mobile-menu-btn {
        position: absolute;
        right: 0;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-title {
        font-size: 32px;
    }

    /* モバイル用のCTA表示修正 */
    .hero-right {
        display: flex !important;
        flex-direction: column;
        gap: 20px;
        padding: 20px;
        height: auto;
        min-height: 200px;
    }

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

    .benefit-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

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

    .database-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

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

    .contact-options {
        grid-template-columns: 1fr;
    }

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

    .companies-logos {
        grid-template-columns: repeat(3, 1fr);
    }

    .download-content {
        flex-direction: column;
        text-align: center;
    }

    .hero-cta-bottom {
        display: flex !important;
        justify-content: center !important;
        width: 100% !important;
        margin-top: 20px;
        flex-shrink: 0;
    }

    .hero-cta-bottom .btn-download-hero {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
        width: 100%;
        max-width: 320px;
        padding: 12px 20px;
        font-size: 16px;
        margin: 0 auto;
    }

    .btn-download-white {
        padding: 12px 30px;
        min-width: 200px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero {
        padding: 40px 0;
    }

    .hero-title {
        font-size: 24px;
    }

    .hero-right {
        display: flex !important;
        flex-direction: column;
        gap: 15px;
        padding: 15px;
        height: auto;
        min-height: 120px;
    }

    .section-title {
        font-size: 24px;
    }

    .benefit-title {
        font-size: 22px;
    }

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

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

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .hero-cta-bottom {
        display: flex !important;
        justify-content: center !important;
        width: 100% !important;
        margin-top: 15px;
        flex-shrink: 0;
        order: 999;
    }

    .hero-cta-bottom .btn-download-hero {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
        width: 100%;
        max-width: 280px;
        padding: 10px 16px;
        font-size: 14px;
        margin: 0 auto;
        position: relative !important;
        z-index: 999 !important;
    }

    .btn-download-white {
        padding: 10px 20px;
        min-width: 150px;
        font-size: 14px;
    }

    .btn-inquiry,
    .btn-download {
        padding: 8px 16px;
        font-size: 12px;
    }
}