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

:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #f59e0b;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
    color: var(--text-color);
    line-height: 1.8;
    background-color: var(--bg-white);
    overflow-x: hidden;
}

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

/* ========================================
   ヘッダー
======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all 0.3s ease;
}

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

.logo {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 12px;
    font-weight: 900;
    color: var(--primary-color);
}

.logo-image {
    height: 50px;
    width: auto;
    display: block;
}

.logo-location {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-light);
    letter-spacing: 0.1em;
    white-space: nowrap;
}

.nav {
    display: flex;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    font-size: 14px;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

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

.nav-link:hover::after {
    width: 100%;
}

.nav-link.x-link {
    padding: 0;
    display: flex;
    align-items: center;
}

.nav-link.x-link::after {
    display: none;
}

.x-icon {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-link.x-link:hover .x-icon {
    transform: scale(1.1);
    opacity: 0.8;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* ========================================
   ファーストビュー（ヒーロー）
======================================== */
.hero {
    position: relative;
    background-image: url('../images/concert-binoculars.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: white;
    padding: 100px 0 80px;
    margin-top: 70px;
    overflow: hidden;
    min-height: calc(100vh - 70px);
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.3);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-subtitle {
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.2em;
    margin-bottom: 20px;
    opacity: 0.9;
}

.hero-title {
    font-size: 52px;
    font-weight: 900;
    line-height: 1.3;
    margin-bottom: 35px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero-text {
    font-size: 20px;
    line-height: 1.8;
    margin-bottom: 30px;
    text-align: center;
}

.hero-text p {
    margin-bottom: 8px;
    text-align: center;
}

.hero-highlight {
    font-weight: 700;
    font-size: 22px;
    margin: 20px 0 !important;
    text-align: center;
}

.hero-emphasis {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 900;
    text-shadow: none;
    filter: drop-shadow(0 2px 4px rgba(251, 191, 36, 0.3));
}

.hero-emphasis-white {
    color: white;
    font-weight: 900;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin: 30px 0 0;
    flex-wrap: wrap;
}

.feature-badge {
    background-color: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    white-space: nowrap;
}

.feature-badge.price-badge {
    background-color: rgba(251, 191, 36, 0.25);
    border: 2px solid rgba(251, 191, 36, 0.6);
    font-weight: 800;
    font-size: 17px;
}

.feature-badge.info-badge {
    background-color: rgba(251, 191, 36, 0.25);
    border: 2px solid rgba(251, 191, 36, 0.6);
    font-size: 17px;
}

.hero-x-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 25px;
    padding: 14px 28px;
    background: rgba(251, 191, 36, 0.4);
    backdrop-filter: blur(10px);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 800;
    font-size: 15px;
    border: 2px solid rgba(251, 191, 36, 0.7);
    transition: all 0.3s ease;
    box-shadow: 0 3px 12px rgba(251, 191, 36, 0.3);
}

.hero-x-button:hover {
    background: rgba(251, 191, 36, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 5px 18px rgba(251, 191, 36, 0.4);
}

.hero-x-icon {
    width: 20px;
    height: 20px;
    filter: invert(1);
}

.hero-description {
    font-size: 18px;
    margin-bottom: 40px;
    font-weight: 500;
}

.cta-button {
    display: inline-block;
    background-color: white;
    color: var(--primary-color);
    padding: 18px 50px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

/* ロケーションカード */
.hero-location-card {
    position: absolute;
    bottom: 30px;
    right: 30px;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 10px;
    background-color: rgba(255, 255, 255, 0.65);
    backdrop-filter: blur(8px);
    padding: 12px 18px;
    border-radius: 12px;
    pointer-events: none;
}

.location-icon {
    font-size: 18px;
    flex-shrink: 0;
}

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

.location-main {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-color);
    line-height: 1.3;
}

.location-sub {
    font-size: 11px;
    font-weight: 500;
    color: var(--text-color);
    opacity: 0.8;
    line-height: 1.3;
}

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

.section:nth-child(even) {
    background-color: var(--bg-light);
}

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

.section-number {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    font-size: 14px;
    font-weight: 700;
    padding: 8px 20px;
    border-radius: 20px;
    margin-bottom: 20px;
}

.section-title {
    font-size: 36px;
    font-weight: 900;
    color: var(--text-color);
    line-height: 1.4;
}

.subsection-title {
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 30px;
    color: var(--text-color);
}

/* ========================================
   体験セクション（ファーストビュー下）
======================================== */
.benefits-section {
    background-color: var(--bg-white);
    padding: 50px 0;
}

.benefits-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 35px 40px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.15) 0%, rgba(118, 75, 162, 0.15) 100%);
    color: var(--text-color);
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(102, 126, 234, 0.2);
}

.benefits-title {
    font-size: 22px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 25px;
    color: var(--text-color);
}

.benefits-list {
    list-style: none;
    margin-bottom: 25px;
}

.benefits-list li {
    font-size: 16px;
    font-weight: 500;
    padding: 12px 0;
    border-bottom: 1px solid rgba(102, 126, 234, 0.15);
    display: flex;
    align-items: center;
    gap: 12px;
}

.benefits-list li:last-child {
    border-bottom: none;
}

.benefits-list i {
    font-size: 20px;
    color: var(--primary-color);
}

.benefits-closing {
    text-align: center;
    font-size: 15px;
    line-height: 1.8;
    font-weight: 500;
    color: var(--text-color);
}

/* ========================================
   商品セクション
======================================== */
.products-content {
    max-width: 1000px;
    margin: 0 auto;
}

.lead-text {
    font-size: 16px;
    text-align: center;
    line-height: 1.9;
    margin-bottom: 50px;
    color: var(--text-color);
}

/* 倍率ガイドセクション */
.magnification-guide {
    background-color: white;
    padding: 50px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    margin-bottom: 40px;
}

.guide-title {
    font-size: 24px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 30px;
    color: var(--text-color);
}

.guide-image-wrapper {
    margin-bottom: 40px;
    text-align: center;
}

.guide-image {
    max-width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
}

/* 座席別カード */
.seat-recommendations {
    display: grid;
    gap: 25px;
}

.seat-card {
    background-color: var(--bg-light);
    padding: 25px 30px;
    border-radius: 12px;
    border-left: 5px solid var(--primary-color);
}

.seat-card:nth-child(1) {
    border-left-color: #10b981;
}

.seat-card:nth-child(2) {
    border-left-color: #f59e0b;
}

.seat-card:nth-child(3) {
    border-left-color: #ef4444;
}

.seat-badge {
    display: inline-block;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 15px;
    color: white;
}

.seat-badge.arena {
    background-color: #10b981;
}

.seat-badge.first-stand {
    background-color: #f59e0b;
}

.seat-badge.second-stand {
    background-color: #ef4444;
}

.seat-content {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-color);
}

.seat-content p {
    margin-bottom: 5px;
}

.seat-content strong {
    color: var(--primary-color);
    font-weight: 700;
    font-size: 16px;
}

/* 重要性セクション */
.importance-section {
    background-color: var(--bg-light);
    padding: 35px 40px;
    border-radius: 15px;
    margin-bottom: 30px;
}

.importance-title {
    font-size: 20px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 20px;
    color: var(--text-color);
}

.importance-text {
    font-size: 15px;
    line-height: 1.9;
    text-align: center;
    color: var(--text-color);
}

/* 注釈 */
.product-notes {
    text-align: center;
    margin-top: 30px;
}

.note {
    font-size: 13px;
    color: var(--text-light);
    margin: 8px 0;
}

/* ========================================
   おすすめの理由セクション */
======================================== */
.reasons-section {
    background-color: var(--bg-white);
}

.reason-item {
    max-width: 900px;
    margin: 0 auto 60px;
    padding: 50px;
    background-color: var(--bg-light);
    border-radius: 20px;
    border-left: 6px solid var(--primary-color);
}

.reason-number {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    font-size: 24px;
    font-weight: 900;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.reason-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 30px;
    line-height: 1.5;
    color: var(--text-color);
}

.reason-content {
    font-size: 16px;
    line-height: 2;
    color: var(--text-light);
}

.reason-content p {
    margin-bottom: 5px;
}

.mt-1 {
    margin-top: 10px !important;
}

.mt-2 {
    margin-top: 20px !important;
}

.highlight-text {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 17px;
}

.quote-text {
    font-weight: 700;
    color: var(--text-color);
    font-size: 18px;
    position: relative;
    padding-left: 25px;
}

.quote-text::before {
    content: '"';
    position: absolute;
    left: 0;
    font-size: 32px;
    color: var(--primary-color);
    line-height: 1;
}

.reasons-summary {
    max-width: 900px;
    margin: 80px auto 0;
    padding: 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
}

.summary-title {
    font-size: 26px;
    font-weight: 900;
    text-align: center;
    margin-bottom: 40px;
}

.summary-list {
    list-style: none;
    margin-bottom: 40px;
}

.summary-list li {
    font-size: 18px;
    font-weight: 500;
    padding: 15px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    gap: 15px;
}

.summary-list li:last-child {
    border-bottom: none;
}

.summary-list i {
    font-size: 24px;
    color: var(--secondary-color);
}

.summary-closing {
    text-align: center;
    font-size: 18px;
    line-height: 2;
    font-weight: 500;
}

/* ========================================
   料金セクション（コンパクト版）
======================================== */
.pricing-content {
    display: flex;
    justify-content: center;
    margin-top: 30px;
}

.pricing-card-compact {
    background-color: white;
    padding: 30px 40px;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    max-width: 700px;
    width: 100%;
    border: 2px solid var(--primary-color);
}

.pricing-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 15px;
}

.pricing-left {
    flex: 1;
}

.pricing-title-compact {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-color);
}

.pricing-includes-compact {
    font-size: 14px;
    color: var(--text-light);
}

.pricing-includes-compact .separator {
    margin: 0 8px;
    color: var(--text-light);
}

.pricing-right {
    text-align: right;
}

.pricing-amount-compact {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.price-compact {
    font-size: 36px;
    font-weight: 900;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: 5px;
}

.period-compact {
    font-size: 13px;
    color: var(--text-light);
    font-weight: 500;
}

.pricing-note-compact {
    font-size: 13px;
    color: var(--text-light);
    text-align: center;
    margin: 0;
}

/* ========================================
   使い方セクション
======================================== */
.flow-content {
    max-width: 900px;
    margin: 0 auto;
}

.flow-steps {
    margin-top: 40px;
}

.flow-step {
    display: flex;
    gap: 30px;
    margin-bottom: 50px;
    position: relative;
}

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

.step-number {
    flex-shrink: 0;
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: 900;
    box-shadow: var(--shadow-lg);
}

.step-content {
    flex: 1;
    padding-top: 10px;
}

.step-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-color);
}

.step-description {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 10px;
}

.step-description .highlight-text {
    font-weight: 700;
    color: var(--primary-color);
}

.step-note-inline {
    font-size: 14px;
    color: #9ca3af;
    font-weight: 400;
    margin-left: 8px;
}

@media (max-width: 768px) {
    .step-note-inline {
        font-size: 12px;
        margin-left: 4px;
        display: inline-block;
    }
}

.step-subdescription {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 10px;
}

.step-note {
    font-size: 14px;
    color: var(--primary-color);
    font-weight: 500;
    margin-top: 10px;
    padding: 10px 15px;
    background-color: rgba(37, 99, 235, 0.1);
    border-radius: 5px;
}

/* ========================================
   店舗情報セクション（コンパクト版）
======================================== */
.info-content-compact {
    max-width: 1000px;
    margin: 0 auto;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    margin-bottom: 30px;
}

.info-card-compact {
    background-color: white;
    padding: 25px 30px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.info-title-compact {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.info-title-compact i {
    color: var(--primary-color);
    font-size: 16px;
}

.info-row {
    display: grid;
    grid-template-columns: 90px 1fr;
    gap: 15px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.info-row:last-of-type {
    border-bottom: none;
}

.info-label-compact {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
}

.info-value-compact {
    font-size: 14px;
    font-weight: 400;
    color: var(--text-color);
    line-height: 1.6;
}

.info-note-compact {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

.x-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 15px;
    padding: 12px 20px;
    background: #000000;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 700;
    font-size: 14px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.x-button:hover {
    background: #333333;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.x-button-icon {
    width: 18px;
    height: 18px;
    filter: invert(1);
}

.map-container-compact {
    background-color: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.map-container-compact iframe {
    border-radius: 8px;
    display: block;
}

/* 動画ガイド */
.video-guides {
    margin-top: 40px;
}

.video-guides-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 30px;
    text-align: center;
}

.video-guides-title i {
    color: var(--primary-color);
    margin-right: 10px;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 560px;
    margin: 0 auto;
}

.video-guide {
    background-color: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.video-guide-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-color);
    padding: 12px 20px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05), rgba(37, 99, 235, 0.1));
    border-bottom: 2px solid var(--primary-color);
}

.video-container {
    position: relative;
    width: 100%;
    padding-bottom: 177.78%; /* 9:16のアスペクト比（縦型動画） */
    height: 0;
    overflow: hidden;
    background-color: #000;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* ========================================
   安心セクション
======================================== */
.security-content {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    gap: 40px;
}

.security-block {
    background-color: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
}

.security-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 25px;
    color: var(--text-color);
    padding-bottom: 15px;
    border-bottom: 3px solid var(--primary-color);
}

.security-list {
    list-style: none;
}

.security-list li {
    font-size: 16px;
    padding: 15px 0;
    display: flex;
    align-items: center;
    gap: 15px;
    color: var(--text-color);
    line-height: 1.8;
}

.security-list i {
    font-size: 24px;
    color: var(--primary-color);
}

.security-block p {
    font-size: 16px;
    line-height: 2;
    color: var(--text-color);
    margin-bottom: 8px;
}

/* ========================================
   FAQセクション
======================================== */
.faq-content {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background-color: white;
    margin-bottom: 20px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
}

.faq-question {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 25px 30px;
    cursor: pointer;
    background-color: white;
    transition: background-color 0.3s ease;
}

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

.faq-q {
    font-size: 24px;
    font-weight: 900;
    color: var(--primary-color);
    flex-shrink: 0;
}

.faq-question-text {
    flex: 1;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-color);
}

.faq-icon {
    font-size: 16px;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

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

.faq-answer {
    display: none;
    padding: 0 30px 25px 30px;
    background-color: var(--bg-light);
}

.faq-item.active .faq-answer {
    display: flex;
    gap: 15px;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.faq-a {
    font-size: 24px;
    font-weight: 900;
    color: var(--secondary-color);
    flex-shrink: 0;
}

.faq-answer-text {
    flex: 1;
    font-size: 16px;
    line-height: 2;
    color: var(--text-color);
}

/* ========================================
   クロージングセクション
======================================== */
.closing-section {
    position: relative;
    background-image: url('../images/tokyo-dome-exterior.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: white;
    padding: 100px 0;
    overflow: hidden;
}

.closing-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 0;
}

.closing-section::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('../images/tokyo-dome-exterior.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    filter: blur(5px);
    opacity: 0.3;
    z-index: -1;
}

.closing-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.closing-title {
    font-size: 36px;
    font-weight: 900;
    line-height: 1.5;
    margin-bottom: 30px;
    color: var(--text-color);
    text-shadow: none;
}

.closing-text {
    font-size: 20px;
    line-height: 2;
    font-weight: 500;
    color: var(--text-color);
    text-shadow: none;
}

/* ========================================
   フッター
======================================== */
.footer {
    background-color: #1f2937;
    color: white;
    padding: 40px 0 30px;
    text-align: center;
}

.footer-social {
    margin-bottom: 30px;
}

.footer-social-link {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 32px;
    background: rgba(255, 255, 255, 0.15);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 700;
    font-size: 16px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-social-link:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.footer-x-icon {
    width: 22px;
    height: 22px;
    filter: invert(1);
}

.footer-social-note {
    margin-top: 15px;
    font-size: 13px;
    opacity: 0.7;
    color: white;
}

.footer-text {
    font-size: 14px;
    opacity: 0.8;
    margin-top: 20px;
}

.faq-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 700;
    border-bottom: 1px solid var(--primary-color);
    transition: all 0.2s ease;
}

.faq-link:hover {
    color: var(--primary-dark);
    border-bottom-color: var(--primary-dark);
}

/* ========================================
   レスポンシブデザイン
======================================== */
@media (max-width: 768px) {
    .nav {
        display: none;
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background-color: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-lg);
        gap: 20px;
    }

    .nav.active {
        display: flex;
    }

    .menu-toggle {
        display: flex;
    }

    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(7px, 7px);
    }

    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    .logo-image {
        height: 38px;
    }

    .logo-location {
        font-size: 13px;
    }

    .hero {
        padding: 80px 0 60px;
        min-height: calc(100vh - 70px);
        background-image: url('../images/concert-binoculars-mobile.jpg');
    }

    .hero-title {
        font-size: 28px;
    }

    .hero-text {
        font-size: 15px;
    }

    .hero-features {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }

    .feature-badge {
        font-size: 13px;
        padding: 9px 20px;
    }

    .hero-x-button {
        font-size: 14px;
        padding: 12px 24px;
        gap: 8px;
        margin-top: 20px;
    }

    .hero-x-icon {
        width: 18px;
        height: 18px;
    }

    .hero-location-card {
        bottom: 20px;
        right: 20px;
        padding: 10px 14px;
        gap: 8px;
    }

    .location-icon {
        font-size: 16px;
    }

    .location-main {
        font-size: 11px;
    }

    .location-sub {
        font-size: 10px;
    }

    .section {
        padding: 50px 0;
    }

    .section-title {
        font-size: 28px;
    }

    .subsection-title {
        font-size: 20px;
    }

    .lead-text {
        font-size: 14px;
    }

    .magnification-guide {
        padding: 25px 20px;
    }

    .guide-title {
        font-size: 20px;
    }

    .guide-image-wrapper {
        margin-bottom: 30px;
    }

    .seat-card {
        padding: 20px;
    }

    .seat-badge {
        font-size: 14px;
        padding: 6px 16px;
    }

    .seat-content {
        font-size: 14px;
    }

    .importance-section {
        padding: 25px 20px;
    }

    .importance-title {
        font-size: 18px;
    }

    .importance-text {
        font-size: 14px;
    }

    .benefits-content {
        padding: 25px 20px;
    }

    .benefits-title {
        font-size: 18px;
    }

    .benefits-list li {
        font-size: 14px;
    }

    .benefits-closing {
        font-size: 14px;
    }

    .pricing-card-compact {
        padding: 25px 20px;
    }

    .pricing-main {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }

    .pricing-right {
        text-align: left;
    }

    .pricing-amount-compact {
        align-items: flex-start;
    }

    .price-compact {
        font-size: 32px;
    }

    .flow-step {
        flex-direction: column;
        gap: 20px;
    }

    .info-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .info-card-compact {
        padding: 20px;
    }

    .info-row {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .map-container-compact {
        padding: 12px;
    }

    .map-container-compact iframe {
        height: 250px;
    }

    .video-guides {
        margin-top: 30px;
    }

    .video-guides-title {
        font-size: 20px;
        margin-bottom: 20px;
    }

    .video-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .video-guide-title {
        font-size: 14px;
        padding: 10px 15px;
    }

    .video-container {
        padding-bottom: 177.78%; /* 9:16のアスペクト比（縦型動画） */
    }

    .x-button {
        font-size: 13px;
        padding: 10px 16px;
        gap: 8px;
    }

    .x-button-icon {
        width: 16px;
        height: 16px;
    }

    .security-block {
        padding: 25px 20px;
    }

    .faq-question {
        padding: 20px;
    }

    .faq-question-text {
        font-size: 16px;
    }

    .faq-answer {
        padding: 0 20px 20px 20px;
    }

    .closing-title {
        font-size: 28px;
    }

    .closing-text {
        font-size: 18px;
    }

    .footer-social-link {
        padding: 14px 28px;
        font-size: 15px;
    }

    .footer-x-icon {
        width: 20px;
        height: 20px;
    }

    .footer-social-note {
        font-size: 12px;
        padding: 0 20px;
    }
}

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

    .hero-title {
        font-size: 28px;
    }

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

    .price {
        font-size: 48px;
    }

    .currency {
        font-size: 24px;
    }

    .footer-social-link {
        padding: 12px 24px;
        font-size: 14px;
        gap: 10px;
    }

    .footer-x-icon {
        width: 18px;
        height: 18px;
    }
}