/* ========================================
   PANTY-LOVE アフィリエイトLP - スタイルシート
   公式バナー統合版・レスポンシブ対応
   ======================================== */

/* ========================================
   リセット・基本設定
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* カラーパレット */
    --color-primary: #DC143C; /* クリムゾンレッド */
    --color-secondary: #FFD700; /* ゴールド */
    --color-dark: #0a0a0a;
    --color-dark-gray: #1a1a1a;
    --color-medium-gray: #2a2a2a;
    --color-light-gray: #3a3a3a;
    --color-text: #e0e0e0;
    --color-text-muted: #a0a0a0;
    --color-white: #ffffff;
    --color-success: #4CAF50;
    --color-warning: #FF9800;
    
    /* グラデーション */
    --gradient-primary: linear-gradient(135deg, #DC143C 0%, #8B0000 100%);
    --gradient-secondary: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    --gradient-dark: linear-gradient(180deg, #0a0a0a 0%, #1a1a1a 100%);
    
    /* シャドウ */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.5);
    --shadow-xl: 0 12px 24px rgba(0,0,0,0.6);
    
    /* トランジション */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-index */
    --z-overlay: 1000;
    --z-sidebar: 900;
    --z-header: 800;
    --z-back-to-top: 700;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Yu Gothic', sans-serif;
    background: var(--color-dark);
    color: var(--color-text);
    line-height: 1.7;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-normal);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul {
    list-style: none;
}

/* コンテナ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========================================
   年齢確認オーバーレイ
   ======================================== */
.age-verification-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.98);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 1;
    transition: opacity var(--transition-slow);
}

.age-verification-overlay.hide {
    opacity: 0;
    pointer-events: none;
}

.age-verification-content {
    background: var(--color-dark-gray);
    padding: 60px 40px;
    border-radius: 16px;
    text-align: center;
    max-width: 500px;
    box-shadow: var(--shadow-xl);
    border: 2px solid var(--color-primary);
}

.age-verification-icon {
    font-size: 64px;
    color: var(--color-warning);
    margin-bottom: 20px;
}

.age-verification-content h2 {
    font-size: 32px;
    margin-bottom: 20px;
    color: var(--color-white);
}

.age-verification-content p {
    font-size: 16px;
    margin-bottom: 40px;
    color: var(--color-text-muted);
}

.age-verification-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.age-verification-buttons .btn-primary,
.age-verification-buttons .btn-secondary {
    padding: 16px 32px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    transition: var(--transition-normal);
}

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

.age-verification-buttons .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.age-verification-buttons .btn-secondary {
    background: var(--color-light-gray);
    color: var(--color-text);
}

.age-verification-buttons .btn-secondary:hover {
    background: var(--color-medium-gray);
}

/* ========================================
   クッキー同意バナー
   ======================================== */
.cookie-consent {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: var(--color-dark-gray);
    padding: 20px;
    box-shadow: var(--shadow-lg);
    z-index: var(--z-overlay);
    transform: translateY(100%);
    transition: transform var(--transition-normal);
}

.cookie-consent.show {
    transform: translateY(0);
}

.cookie-consent-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.cookie-consent-content p {
    font-size: 14px;
    color: var(--color-text-muted);
}

.btn-small {
    padding: 10px 24px;
    background: var(--gradient-primary);
    color: var(--color-white);
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition-normal);
}

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

/* ========================================
   ヘッダー
   ======================================== */
.header {
    position: sticky;
    top: 0;
    background: var(--color-dark-gray);
    padding: 16px 0;
    box-shadow: var(--shadow-md);
    z-index: var(--z-header);
    border-bottom: 1px solid var(--color-light-gray);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 700;
    color: var(--color-white);
}

.logo i {
    color: var(--color-secondary);
}

.logo-text {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-badge {
    font-size: 12px;
    background: var(--gradient-primary);
    padding: 4px 8px;
    border-radius: 4px;
    font-weight: 600;
}

.nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text);
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-primary);
}

.btn-nav {
    background: var(--gradient-primary);
    color: var(--color-white);
    padding: 10px 20px;
    border-radius: 6px;
    font-weight: 600;
}

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

.mobile-menu-toggle {
    display: none;
    font-size: 24px;
    color: var(--color-white);
}

/* ========================================
   バナーセクション共通
   ======================================== */
.banner-section {
    padding: 40px 0;
    text-align: center;
}

.banner-link {
    display: inline-block;
    transition: var(--transition-normal);
}

.banner-link:hover {
    transform: scale(1.02);
    opacity: 0.9;
}

.banner-img {
    border-radius: 8px;
    box-shadow: var(--shadow-md);
}

/* リーダーボードバナー（728x90） */
.banner-leaderboard {
    background: var(--color-dark-gray);
    padding: 20px 0;
    border-bottom: 1px solid var(--color-light-gray);
}

/* 横長バナー（700x200） */
.banner-horizontal {
    padding: 60px 0;
}

/* Lazy Load用のプレースホルダー */
.lazy-load {
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

.lazy-load.loaded {
    opacity: 1;
}

/* ========================================
   ファーストビュー（ヒーロー）
   ======================================== */
.hero {
    position: relative;
    padding: 120px 0;
    text-align: center;
    overflow: hidden;
    background: var(--gradient-dark);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    opacity: 0.3;
}

.hero-background a {
    display: block;
    width: 100%;
    height: 100%;
}

.hero-banner-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    margin-bottom: 30px;
}

.hero-title-main {
    display: block;
    font-size: 56px;
    font-weight: 900;
    color: var(--color-white);
    text-shadow: 0 4px 8px rgba(0,0,0,0.5);
    margin-bottom: 10px;
}

.hero-title-sub {
    display: block;
    font-size: 32px;
    font-weight: 600;
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 50px;
    color: var(--color-text);
}

.hero-description strong {
    color: var(--color-secondary);
    font-weight: 700;
}

.hero-cta {
    display: flex;
    gap: 24px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 20px 40px;
    font-size: 18px;
    font-weight: 700;
    border-radius: 12px;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-md);
    position: relative;
}

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

.btn-cta-secondary {
    background: var(--gradient-secondary);
    color: var(--color-dark);
}

.btn-cta:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.btn-badge {
    position: absolute;
    top: -12px;
    right: -12px;
    background: var(--color-warning);
    color: var(--color-dark);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    box-shadow: var(--shadow-sm);
}

/* ========================================
   統計情報
   ======================================== */
.stats-section {
    padding: 80px 0;
    background: var(--color-dark-gray);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.stat-card {
    text-align: center;
    padding: 40px 20px;
    background: var(--color-medium-gray);
    border-radius: 12px;
    transition: var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    font-size: 48px;
    color: var(--color-secondary);
    margin-bottom: 20px;
}

.stat-number {
    font-size: 48px;
    font-weight: 900;
    color: var(--color-white);
    margin-bottom: 10px;
}

.stat-label {
    font-size: 16px;
    color: var(--color-text-muted);
}

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

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

.section-title-accent {
    font-size: 40px;
    font-weight: 700;
    color: var(--color-white);
    display: inline-block;
    position: relative;
    padding-bottom: 20px;
}

.section-title-accent::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.section-description {
    text-align: center;
    font-size: 18px;
    color: var(--color-text-muted);
    margin-bottom: 40px;
}

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

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

.problem-card {
    background: var(--color-medium-gray);
    padding: 40px;
    border-radius: 12px;
    text-align: center;
    transition: var(--transition-normal);
    border: 2px solid transparent;
}

.problem-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.problem-icon {
    font-size: 56px;
    color: var(--color-warning);
    margin-bottom: 20px;
}

.problem-card h3 {
    font-size: 24px;
    color: var(--color-white);
    margin-bottom: 16px;
    line-height: 1.4;
}

.problem-card p {
    font-size: 16px;
    color: var(--color-text-muted);
}

/* ========================================
   解決策セクション
   ======================================== */
.solution-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.solution-box {
    background: var(--color-dark-gray);
    padding: 30px;
    border-radius: 12px;
    border-left: 4px solid var(--color-success);
}

.solution-box h3 {
    font-size: 20px;
    color: var(--color-white);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.solution-box h3 i {
    color: var(--color-success);
}

.solution-box p {
    font-size: 15px;
    color: var(--color-text-muted);
}

/* ========================================
   プラン比較セクション
   ======================================== */
.plans-section {
    background: var(--color-dark-gray);
}

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

.plan-card {
    background: var(--color-medium-gray);
    border-radius: 16px;
    overflow: hidden;
    transition: var(--transition-normal);
    position: relative;
    border: 3px solid transparent;
}

.plan-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-xl);
}

.plan-card-amateur {
    border-color: var(--color-primary);
}

.plan-card-mature {
    border-color: var(--color-secondary);
}

.plan-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--gradient-primary);
    color: var(--color-white);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 700;
    z-index: 10;
}

.plan-badge-mature {
    background: var(--gradient-secondary);
    color: var(--color-dark);
}

.plan-header {
    background: var(--gradient-dark);
    padding: 40px 30px;
    text-align: center;
}

.plan-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 10px;
}

.plan-subtitle {
    font-size: 20px;
    color: var(--color-text-muted);
}

.plan-content {
    padding: 40px 30px;
}

.plan-features h4 {
    font-size: 18px;
    color: var(--color-white);
    margin-bottom: 16px;
}

.plan-features ul {
    margin-bottom: 30px;
}

.plan-features li {
    font-size: 15px;
    color: var(--color-text);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.plan-features li i {
    color: var(--color-success);
}

.plan-content-info {
    background: var(--color-dark-gray);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 30px;
}

.plan-content-info p {
    font-size: 15px;
    color: var(--color-text-muted);
}

.plan-content-info strong {
    color: var(--color-white);
}

.plan-price {
    text-align: center;
    margin-bottom: 30px;
}

.plan-price-label {
    font-size: 14px;
    color: var(--color-text-muted);
    margin-bottom: 10px;
}

.plan-price-amount {
    font-size: 48px;
    font-weight: 900;
    color: var(--color-white);
}

.plan-price-amount span {
    font-size: 20px;
    color: var(--color-text-muted);
}

.plan-price-note {
    font-size: 13px;
    color: var(--color-text-muted);
    margin-top: 10px;
}

.btn-plan {
    display: block;
    width: 100%;
    padding: 18px;
    background: var(--gradient-primary);
    color: var(--color-white);
    text-align: center;
    font-size: 18px;
    font-weight: 700;
    border-radius: 8px;
    transition: var(--transition-normal);
}

.btn-plan:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.plan-card-mature .btn-plan {
    background: var(--gradient-secondary);
    color: var(--color-dark);
}

/* ========================================
   特徴セクション
   ======================================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: var(--color-dark-gray);
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    transition: var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    background: var(--color-medium-gray);
}

.feature-icon {
    font-size: 56px;
    color: var(--color-primary);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    color: var(--color-white);
    margin-bottom: 16px;
}

.feature-card p {
    font-size: 15px;
    color: var(--color-text-muted);
}

/* ========================================
   安全性セクション
   ======================================== */
.safety-section {
    background: var(--color-dark-gray);
}

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

.safety-card {
    background: var(--color-medium-gray);
    padding: 40px;
    border-radius: 12px;
    border: 2px solid var(--color-success);
}

.safety-icon {
    font-size: 56px;
    color: var(--color-success);
    margin-bottom: 20px;
}

.safety-card h3 {
    font-size: 24px;
    color: var(--color-white);
    margin-bottom: 16px;
}

.safety-card p {
    font-size: 16px;
    color: var(--color-text-muted);
}

/* ========================================
   料金セクション
   ======================================== */
.pricing-table {
    margin-bottom: 60px;
    overflow-x: auto;
}

.pricing-table table {
    width: 100%;
    background: var(--color-dark-gray);
    border-radius: 12px;
    overflow: hidden;
}

.pricing-table th,
.pricing-table td {
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid var(--color-light-gray);
}

.pricing-table th {
    background: var(--color-medium-gray);
    color: var(--color-white);
    font-weight: 700;
}

.pricing-table td {
    color: var(--color-text);
}

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

.payment-methods {
    text-align: center;
    background: var(--color-dark-gray);
    padding: 40px;
    border-radius: 12px;
}

.payment-methods h3 {
    font-size: 24px;
    color: var(--color-white);
    margin-bottom: 30px;
}

.payment-icons {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.payment-icon {
    font-size: 20px;
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: 8px;
}

.payment-icon i {
    font-size: 32px;
    color: var(--color-secondary);
}

/* ========================================
   FAQセクション
   ======================================== */
.faq-section {
    background: var(--color-dark-gray);
}

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

.faq-item {
    background: var(--color-medium-gray);
    margin-bottom: 20px;
    border-radius: 12px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 24px 30px;
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 18px;
    font-weight: 600;
    color: var(--color-white);
    transition: var(--transition-normal);
}

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

.faq-question i {
    transition: transform var(--transition-normal);
    color: var(--color-primary);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

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

.faq-answer p {
    padding: 0 30px 24px;
    font-size: 16px;
    color: var(--color-text-muted);
    line-height: 1.8;
}

/* ========================================
   最終CTAセクション
   ======================================== */
.cta-final-section {
    padding: 100px 0;
    background: var(--gradient-dark);
    text-align: center;
}

.cta-final-title {
    font-size: 48px;
    font-weight: 900;
    color: var(--color-white);
    margin-bottom: 20px;
}

.cta-final-description {
    font-size: 20px;
    color: var(--color-text);
    margin-bottom: 50px;
    line-height: 1.8;
}

.cta-final-buttons {
    display: flex;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.btn-cta-final {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 24px 48px;
    font-size: 20px;
    font-weight: 700;
    border-radius: 12px;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-lg);
    position: relative;
}

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

.btn-cta-final-mature {
    background: var(--gradient-secondary);
    color: var(--color-dark);
}

.btn-cta-final:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.btn-final-badge {
    position: absolute;
    top: -16px;
    right: -16px;
    background: var(--color-warning);
    color: var(--color-dark);
    padding: 8px 16px;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

.cta-final-guarantee {
    font-size: 16px;
    color: var(--color-text-muted);
}

.cta-final-guarantee i {
    color: var(--color-success);
}

/* ========================================
   フッター
   ======================================== */
.footer {
    background: var(--color-dark-gray);
    padding: 60px 0 30px;
    border-top: 1px solid var(--color-light-gray);
}

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

.footer-section h4 {
    font-size: 20px;
    color: var(--color-white);
    margin-bottom: 20px;
}

.footer-section p,
.footer-section li {
    font-size: 15px;
    color: var(--color-text-muted);
    line-height: 1.8;
}

.footer-section ul li {
    margin-bottom: 12px;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--color-light-gray);
}

.footer-warning {
    font-size: 14px;
    color: var(--color-warning);
    margin-bottom: 16px;
}

.footer-warning i {
    margin-right: 8px;
}

.footer-copyright {
    font-size: 13px;
    color: var(--color-text-muted);
}

/* ========================================
   サイドバー（PC用・縦長バナー）
   ======================================== */
.sidebar-banner {
    position: fixed;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
    z-index: var(--z-sidebar);
    transition: var(--transition-normal);
}

.sidebar-banner-link {
    display: block;
}

.sidebar-banner-img {
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-normal);
}

.sidebar-banner:hover .sidebar-banner-img {
    transform: scale(1.05);
}

/* ========================================
   トップに戻るボタン
   ======================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: var(--shadow-lg);
    z-index: var(--z-back-to-top);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

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

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* ========================================
   Exit Intentポップアップ
   ======================================== */
.exit-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-overlay);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.exit-popup.show {
    opacity: 1;
    visibility: visible;
}

.exit-popup-content {
    background: var(--color-dark-gray);
    padding: 50px 40px;
    border-radius: 16px;
    max-width: 600px;
    text-align: center;
    position: relative;
    box-shadow: var(--shadow-xl);
    border: 2px solid var(--color-primary);
}

.exit-popup-close {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 24px;
    color: var(--color-text-muted);
    transition: var(--transition-fast);
}

.exit-popup-close:hover {
    color: var(--color-white);
}

.exit-popup h3 {
    font-size: 32px;
    color: var(--color-white);
    margin-bottom: 20px;
}

.exit-popup p {
    font-size: 18px;
    color: var(--color-text);
    margin-bottom: 40px;
}

.exit-popup-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.btn-exit-popup {
    padding: 16px 32px;
    background: var(--gradient-primary);
    color: var(--color-white);
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    transition: var(--transition-normal);
}

.btn-exit-popup:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

/* タブレット（1024px以下） */
@media (max-width: 1024px) {
    .sidebar-banner {
        display: none;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

/* タブレット（768px以下） */
@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .banner-leaderboard {
        display: none;
    }
    
    .hero-title-main {
        font-size: 40px;
    }
    
    .hero-title-sub {
        font-size: 24px;
    }
    
    .hero-description {
        font-size: 16px;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .problem-grid {
        grid-template-columns: 1fr;
    }
    
    .solution-content {
        grid-template-columns: 1fr;
    }
    
    .plans-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .safety-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-final-buttons {
        flex-direction: column;
    }
    
    .section-title-accent {
        font-size: 28px;
    }
    
    .cta-final-title {
        font-size: 32px;
    }
}

/* スマホ（480px以下） */
@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero {
        padding: 80px 0;
    }
    
    .hero-title-main {
        font-size: 32px;
    }
    
    .hero-title-sub {
        font-size: 20px;
    }
    
    .btn-cta,
    .btn-cta-final {
        padding: 16px 24px;
        font-size: 16px;
    }
    
    .age-verification-content {
        padding: 40px 20px;
    }
    
    .cookie-consent-content {
        flex-direction: column;
        text-align: center;
    }
    
    .section-title-accent {
        font-size: 24px;
    }
    
    .plan-title {
        font-size: 24px;
    }
    
    .plan-price-amount {
        font-size: 36px;
    }
    
    .exit-popup-content {
        padding: 40px 20px;
        margin: 0 16px;
    }
    
    .exit-popup-buttons {
        flex-direction: column;
    }
}

/* アニメーション */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}