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

:root {
    --amber: #f59e0b;
    --amber-dark: #d97706;
    --amber-darker: #b45309;
    --amber-light: #fef3c7;
    --amber-pale: #fffbf0;
    --text: #1a1a1a;
    --text-muted: #6b7280;
    --bg-cream: #fdf6e3;
    --border: #e5e7eb;
    --white: #ffffff;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.10);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic UI", sans-serif;
    line-height: 1.8;
    color: var(--text);
    font-size: 15px;
}

.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 16px;
}

/* ===== ボタン ===== */
.btn {
    display: inline-block;
    padding: 16px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1rem;
    text-align: center;
    transition: all 0.25s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--amber-dark);
    color: #fff;
    box-shadow: 0 4px 12px rgba(217, 119, 6, 0.35);
}

.btn-primary:hover {
    background: var(--amber-darker);
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(217, 119, 6, 0.4);
}

.btn-secondary {
    background: #fff;
    color: var(--amber-darker);
    border: 2px solid var(--amber-dark);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--amber-light);
    transform: translateY(-2px);
}

.btn-block {
    display: block;
    width: 100%;
}

/* ===== ヒーロー ===== */
.hero {
    background: url('https://kawanishizukan.zebralion.co.jp/business/lp/images/hero.jpg') center/cover;
    color: white;
    padding: 100px 16px 80px;
    text-align: center;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(rgba(0, 0, 0, 0.35), rgba(0, 0, 0, 0.55));
    z-index: 1;
}

.hero .container {
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: clamp(1.6rem, 5vw, 2.6rem);
    margin-bottom: 16px;
    line-height: 1.45;
    text-shadow: 1px 2px 6px rgba(0, 0, 0, 0.4);
    letter-spacing: 0.02em;
}

.hero p {
    font-size: 1rem;
    margin-bottom: 32px;
    opacity: 0.95;
    line-height: 1.9;
}

/* ===== セクション共通 ===== */
section {
    padding: 56px 0;
}

section h2 {
    font-size: clamp(1.3rem, 4vw, 1.8rem);
    margin-bottom: 8px;
    text-align: center;
    line-height: 1.4;
}

.section-lead {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 32px;
    line-height: 1.7;
}

.section-divider {
    width: 40px;
    height: 3px;
    background: var(--amber);
    margin: 12px auto 28px;
    border-radius: 2px;
}

.bg-cream {
    background: var(--bg-cream);
}

.bg-white {
    background: var(--white);
}

/* ===== 川西図鑑とは ===== */
.about-visual {
    background: linear-gradient(135deg, var(--amber) 0%, var(--amber-dark) 100%);
    padding: 28px 24px;
    border-radius: 14px;
    color: white;
    text-align: center;
    margin-bottom: 28px;
}

.about-visual h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    line-height: 1.5;
}

.about-visual p {
    font-size: 0.95rem;
    opacity: 0.95;
}

.about-text p {
    margin-bottom: 16px;
    font-size: 0.95rem;
    color: #444;
    text-align: center;
}

/* ===== 問題提起 ===== */
.problem-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.problem-item {
    background: white;
    padding: 18px 20px;
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 14px;
    border-left: 4px solid #ef4444;
}

.problem-icon {
    font-size: 1.6rem;
    flex-shrink: 0;
}

.problem-text {
    font-size: 0.95rem;
    font-weight: 500;
}

.problem-resolve {
    text-align: center;
    font-weight: bold;
    margin-top: 28px;
    font-size: 1rem;
    color: var(--amber-darker);
    background: var(--amber-light);
    padding: 16px 20px;
    border-radius: 10px;
}

/* ===== おすすめ ===== */
.recommend-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.recommend-item {
    background: white;
    padding: 18px 20px;
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 14px;
}

.recommend-icon {
    width: 28px;
    height: 28px;
    background: var(--amber);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.85rem;
    flex-shrink: 0;
}

/* ===== プラン比較（階段型） ===== */
.plan-steps {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin: 28px 0;
}

/* 未登録カード：小さめ・控えめ */
.plan-step-unregistered {
    background: #f3f4f6;
    border: 1.5px solid #d1d5db;
    border-radius: 10px;
    padding: 14px 18px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.plan-step-unregistered .step-label {
    font-size: 0.78rem;
    color: #9ca3af;
    font-weight: bold;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.plan-step-unregistered .step-desc {
    font-size: 0.85rem;
    color: #6b7280;
}

/* 無料登録カード */
.plan-step-free {
    background: white;
    border: 2px solid #9ca3af;
    border-radius: 12px;
    overflow: hidden;
}

.plan-step-free .step-header {
    background: #f9fafb;
    padding: 14px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
}

.plan-step-free .step-name {
    font-weight: bold;
    font-size: 1rem;
    color: #374151;
}

.plan-step-free .step-price {
    font-weight: bold;
    font-size: 1rem;
    color: #374151;
}

.plan-step-free .step-body {
    padding: 16px 20px;
}

.step-adds {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
}

.step-adds li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
}

.step-adds li .add-icon {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: bold;
    flex-shrink: 0;
    background: #e5e7eb;
    color: #374151;
}

/* 公式図鑑ページカード */
.plan-step-paid {
    background: white;
    border: 2.5px solid var(--amber);
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(245, 158, 11, 0.18);
}

.plan-step-paid .step-header {
    background: linear-gradient(135deg, var(--amber) 0%, var(--amber-dark) 100%);
    padding: 18px 20px;
    border-bottom: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.plan-step-paid .step-tag {
    display: inline-block;
    background: white;
    color: var(--amber-darker);
    font-size: 0.7rem;
    font-weight: bold;
    padding: 3px 12px;
    border-radius: 20px;
    margin-bottom: 8px;
}

.plan-step-paid .step-name {
    font-weight: bold;
    font-size: 1.05rem;
    color: white;
    display: block;
}

.plan-step-paid .step-price-block {
    margin-top: 6px;
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.plan-step-paid .step-price-num {
    font-size: 1.8rem;
    font-weight: bold;
    color: white;
}

.plan-step-paid .step-price-unit {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.85);
}

.plan-step-paid .step-body {
    padding: 18px 20px;
}

.plan-step-paid .step-adds li .add-icon {
    background: var(--amber-light);
    color: var(--amber-darker);
}

/* ===== メリット ===== */
.benefits-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.benefit-card {
    background: white;
    padding: 24px 20px;
    border-radius: 14px;
    box-shadow: var(--shadow-sm);
    display: flex;
    gap: 18px;
    align-items: flex-start;
}

.benefit-number {
    width: 44px;
    height: 44px;
    min-width: 44px;
    line-height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--amber) 0%, var(--amber-dark) 100%);
    color: white;
    font-weight: bold;
    font-size: 1.2rem;
    text-align: center;
}

.benefit-text h3 {
    font-size: 1rem;
    margin-bottom: 8px;
    line-height: 1.4;
}

.benefit-text p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ===== 比較表（他サービス） ===== */
.comparison-table-wrapper {
    overflow-x: auto;
    margin: 24px 0;
    -webkit-overflow-scrolling: touch;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.scroll-hint {
    text-align: center;
    font-size: 0.8rem;
    color: #aaa;
    margin-top: 8px;
    display: block;
}

.comparison-table {
    width: 100%;
    min-width: 480px;
    border-collapse: collapse;
    background: white;
    font-size: 0.88rem;
}

.comparison-table th,
.comparison-table td {
    padding: 14px 12px;
    text-align: center;
    border-bottom: 1px solid var(--border);
}

.comparison-table th {
    background: #f3f4f6;
    font-weight: bold;
    color: #333;
}

.comparison-table th:nth-child(1),
.comparison-table td:nth-child(1) {
    text-align: left;
    padding-left: 16px;
    width: 22%;
    font-weight: 600;
}

.comparison-table th:nth-child(2) {
    background: var(--amber);
    color: white;
}

.comparison-table td:nth-child(2) {
    background: var(--amber-pale);
    font-weight: bold;
    color: var(--amber-darker);
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.table-highlight {
    text-align: center;
    margin-top: 20px;
    font-weight: bold;
    font-size: 0.95rem;
    color: var(--amber-darker);
}

/* ===== 料金 ===== */
.pricing-stack {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin: 28px 0;
}

.pricing-card {
    background: white;
    border-radius: 16px;
    border: 2px solid var(--border);
    overflow: hidden;
}

.pricing-card.is-main {
    border-color: var(--amber);
    box-shadow: 0 4px 20px rgba(245, 158, 11, 0.15);
}

.pricing-card.is-option {
    border-color: #9ca3af;
}

.pricing-card.is-free {
    border-color: #d1d5db;
}

.pricing-card-header {
    padding: 20px 24px 16px;
    border-bottom: 1px solid var(--border);
}

.pricing-card.is-main .pricing-card-header {
    background: linear-gradient(135deg, var(--amber) 0%, var(--amber-dark) 100%);
    border-bottom-color: var(--amber-dark);
}

.pricing-tag {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: bold;
    padding: 3px 12px;
    border-radius: 20px;
    margin-bottom: 10px;
    letter-spacing: 0.06em;
}

.pricing-tag-main {
    background: white;
    color: var(--amber-darker);
}

.pricing-tag-option {
    background: #6b7280;
    color: white;
}

.pricing-tag-free {
    background: #e5e7eb;
    color: #374151;
}

.pricing-card-title {
    font-size: 1.1rem;
    font-weight: bold;
    color: #333;
    margin-bottom: 4px;
}

.pricing-card.is-main .pricing-card-title {
    color: white;
}

.pricing-amount {
    display: flex;
    align-items: baseline;
    gap: 4px;
    margin-top: 12px;
}

.pricing-amount .price-num {
    font-size: 2rem;
    font-weight: bold;
    color: var(--amber-darker);
}

.pricing-card.is-main .pricing-amount .price-num {
    color: white;
}

.pricing-amount .price-unit {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.pricing-card.is-main .pricing-amount .price-unit {
    color: rgba(255, 255, 255, 0.85);
}

.pricing-card-body {
    padding: 20px 24px;
}

.pricing-meta {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 16px;
    line-height: 1.6;
}

.pricing-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.pricing-features li {
    font-size: 0.88rem;
    display: flex;
    gap: 8px;
    align-items: baseline;
}

.pricing-features li::before {
    content: "✓";
    color: var(--amber);
    font-weight: bold;
    flex-shrink: 0;
}

.pricing-features li.is-none::before {
    content: "—";
    color: #d1d5db;
}

.stat-instagram-handle {
    display: block;
    font-size: 0.75rem;
    color: #9333ea;
    font-weight: bold;
    margin-top: 6px;
    text-decoration: none;
}

.stat-instagram-handle:hover {
    text-decoration: underline;
}

.stat-date {
    text-align: center;
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 12px;
    margin-bottom: 20px;
}

.instagram-link {
    display: flex;
    align-items: center;
    gap: 14px;
    background: linear-gradient(135deg, #f9f0ff 0%, #fff0f6 100%);
    border: 1.5px solid #e9d5ff;
    border-radius: 12px;
    padding: 16px 20px;
    text-decoration: none;
    transition: all 0.25s;
    margin-top: 8px;
}

.instagram-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.instagram-icon {
    font-size: 1.6rem;
    flex-shrink: 0;
}

.instagram-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.instagram-handle {
    font-weight: bold;
    font-size: 0.95rem;
    color: #7c3aed;
}

.instagram-sub {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.instagram-arrow {
    font-size: 1rem;
    color: #7c3aed;
    flex-shrink: 0;
}

/* ===== 実績 ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin: 24px 0;
}

.stat-card {
    background: white;
    padding: 24px 12px;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.stat-number {
    font-size: clamp(1.5rem, 4vw, 2.2rem);
    color: var(--amber);
    font-weight: bold;
    display: block;
    margin-bottom: 6px;
    line-height: 1.2;
}

.stat-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    line-height: 1.4;
}

/* ===== FAQ ===== */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    color: var(--amber-darker);
    margin-bottom: 10px;
    font-size: 0.95rem;
    font-weight: bold;
    line-height: 1.5;
}

.faq-answer {
    color: #555;
    line-height: 1.8;
    font-size: 0.9rem;
}

/* ===== 最終CTA ===== */
.final-cta {
    background: linear-gradient(135deg, var(--amber) 0%, var(--amber-dark) 100%);
    color: white;
    padding: 64px 16px;
    text-align: center;
}

.final-cta h2 {
    color: white;
    font-size: clamp(1.2rem, 4vw, 1.6rem);
    margin-bottom: 12px;
}

.final-cta h2::after {
    display: none;
}

.final-cta .section-lead {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 28px;
    font-size: 0.95rem;
}

.btn-cta-white {
    background: white;
    color: var(--amber-darker);
    padding: 18px 36px;
    border-radius: 50px;
    font-weight: bold;
    font-size: 1rem;
    text-decoration: none;
    display: inline-block;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    transition: all 0.25s;
}

.btn-cta-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.2);
}

/* ===== 固定CTAボタン ===== */
.fixed-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.15);
    padding: 12px 16px;
    z-index: 100;
    transform: translateY(100%);
    transition: transform 0.3s ease-out;
}

.fixed-cta.is-visible {
    transform: translateY(0);
}

.fixed-cta .btn {
    width: 100%;
    margin: 0;
}

/* PC表示では固定CTAを非表示 */
@media (min-width: 640px) {
    .fixed-cta {
        display: none;
    }
}

/* ===== フッター ===== */
.footer {
    background: #1f2937;
    color: white;
    padding: 40px 16px 24px;
}

.footer-grid {
    max-width: 720px;
    margin: 0 auto 24px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

.footer h3 {
    font-size: 1rem;
    margin-bottom: 10px;
    color: var(--amber-light);
}

.footer p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    font-size: 0.88rem;
    margin-bottom: 6px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.45);
    font-size: 0.8rem;
    max-width: 720px;
    margin: 0 auto;
}

/* ===== PC対応 ===== */
@media (min-width: 640px) {
    .hero {
        padding: 140px 20px 120px;
    }

    section {
        padding: 72px 0;
    }

    .stats-grid {
        gap: 20px;
    }

    .stat-card {
        padding: 32px 20px;
    }

    .footer-grid {
        grid-template-columns: 2fr 1fr;
        gap: 40px;
    }

    .plan-card-header {
        padding: 18px 24px;
    }

    .plan-card-body {
        padding: 20px 24px;
    }

    .plan-card-cta {
        padding: 0 24px 24px;
    }
}