/* ========================================
   学ナビLP - スタイルシート（新配色版）
   配色: パープル40% / ミント35% / コーラル15% / イエロー10%
   ======================================== */

/* カラーパレット */
:root {
    /* メインカラー（40%使用） */
    --primary-deep-purple: #4B2E83;
    --primary-dark-purple: #2E1A47;
    
    /* ベースカラー（35%使用） */
    --base-mint-green: #63D1C6;
    --base-mint-light: #7FE5DA;
    
    /* サブカラー（15%使用） */
    --sub-coral-orange: #FF8A65;
    --sub-coral-light: #FF7043;
    
    /* アクセントカラー（10%使用） */
    --accent-vivid-yellow: #F4E04D;
    --accent-yellow-light: #FFF176;
    
    /* テキストカラー */
    --text-primary: #2E1A47;
    --text-secondary: #FFFFFF;
    
    /* 背景カラー */
    --bg-white: #FFFFFF;
    --bg-light: #F5F5F5;
    
    /* その他 */
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    color: var(--text-primary);
    background-color: var(--bg-white);
    line-height: 1.7;
    overflow-x: hidden;
}

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

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

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

/* ========================================
   ローディング画面
   ======================================== */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-deep-purple) 0%, var(--base-mint-green) 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--text-secondary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-text {
    margin-top: 20px;
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 500;
}

/* ========================================
   ヘッダー
   ======================================== */
.header {
    background-color: var(--primary-deep-purple);
    color: var(--text-secondary);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(46, 26, 71, 0.1);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--accent-vivid-yellow);
}

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

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--accent-vivid-yellow);
}

.header-cta-btn {
    background-color: var(--sub-coral-orange);
    color: var(--text-secondary);
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 700;
    transition: var(--transition);
}

.header-cta-btn:hover {
    background-color: var(--sub-coral-light);
    transform: translateY(-2px);
}

/* SPメニュー用（簡易版） */
@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .header-cta-btn {
        font-size: 0.9rem;
        padding: 10px 20px;
    }
}

/* ========================================
   Heroセクション
   ======================================== */
.hero {
    position: relative;
    background: linear-gradient(135deg, var(--base-mint-light) 0%, var(--base-mint-green) 100%);
    padding: 100px 0;
    overflow: hidden;
}

.hero-bg-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.shape {
    position: absolute;
    opacity: 0.3;
}

.shape-circle {
    width: 200px;
    height: 200px;
    background-color: var(--accent-vivid-yellow);
    border-radius: 50%;
    top: 10%;
    left: 5%;
    animation: float 6s ease-in-out infinite;
}

.shape-triangle {
    width: 0;
    height: 0;
    border-left: 100px solid transparent;
    border-right: 100px solid transparent;
    border-bottom: 173px solid var(--sub-coral-orange);
    top: 60%;
    right: 10%;
    animation: float 8s ease-in-out infinite;
}

.shape-square {
    width: 150px;
    height: 150px;
    background-color: var(--primary-deep-purple);
    top: 30%;
    right: 20%;
    transform: rotate(45deg);
    animation: float 7s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 60px;
    position: relative;
    z-index: 1;
}

.hero-text {
    flex: 1;
}

.hero-target-badge {
    display: inline-block;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--primary-deep-purple);
    background: linear-gradient(135deg, var(--accent-yellow-light) 0%, var(--accent-vivid-yellow) 100%);
    padding: 8px 16px;
    border-radius: 50px;
    margin-bottom: 16px;
    letter-spacing: 0.02em;
}

.hero-title {
    font-size: 3rem;
    font-weight: 900;
    line-height: 1.3;
    color: var(--primary-dark-purple);
    margin-bottom: 20px;
}

.hero-title .highlight {
    color: var(--sub-coral-orange);
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-deep-purple);
    margin-bottom: 18px;
}

.hero-benefits {
    list-style: none;
    margin-bottom: 8px;
}

.hero-benefits li {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.hero-benefits .check {
    color: var(--base-mint-green);
    margin-right: 6px;
}

.hero-benefits-label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-deep-purple);
    margin-bottom: 24px;
}

.hero-cta-btn {
    display: inline-block;
    background-color: var(--primary-deep-purple);
    color: var(--text-secondary);
    padding: 18px 40px;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 700;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(75, 46, 131, 0.3);
}

.hero-cta-btn:hover {
    background-color: var(--primary-dark-purple);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(75, 46, 131, 0.4);
}

.hero-image {
    flex: 1;
    min-width: 0;
}

.hero-image img,
.about-image img {
    width: 100%;
    max-width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

.illustration-warm {
    filter: contrast(1.05) saturate(1.1) brightness(1.02);
    opacity: 0.98;
    border-radius: 20px;
    transition: var(--transition);
}

.illustration-warm:hover {
    transform: scale(1.02);
}

@media (max-width: 1024px) {
    .hero-content {
        flex-direction: column;
        gap: 40px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 60px 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-benefits li {
        font-size: 1rem;
    }
    
    .hero-target-badge {
        font-size: 0.85rem;
        padding: 6px 14px;
    }
    
    .shape {
        opacity: 0.2;
    }
    
    .shape-circle {
        width: 100px;
        height: 100px;
    }
}

/* ========================================
   PDFカルーセルセクション
   ======================================== */
.pdf-carousel-section {
    padding: 80px 0;
    background-color: var(--bg-white);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--primary-deep-purple);
    text-align: center;
    margin-bottom: 15px;
}

.section-empathy {
    text-align: center;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--primary-deep-purple);
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 50px;
}

/* Swiper設定 */
.pdf-swiper {
    width: 100%;
    padding: 20px 0 60px;
}

.swiper-slide {
    display: flex;
    justify-content: center;
}

/* PDFカード */
.pdf-card {
    background-color: var(--bg-white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(75, 46, 131, 0.15);
    transition: var(--transition);
    cursor: pointer;
    max-width: 400px;
    width: 100%;
}

.pdf-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(75, 46, 131, 0.25);
}

.pdf-thumbnail-container {
    position: relative;
    width: 100%;
    height: 500px;
    background: linear-gradient(135deg, var(--base-mint-light) 0%, var(--base-mint-green) 100%);
    display: flex;
    justify-content: center;
    align-items: center;
}

.pdf-thumbnail {
    max-width: 100%;
    max-height: 100%;
    display: block;
}

.pdf-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--primary-deep-purple);
}

.pdf-loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(75, 46, 131, 0.2);
    border-top-color: var(--primary-deep-purple);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 10px;
}

.pdf-card-content {
    padding: 25px;
    background-color: var(--bg-white);
}

.pdf-card-benefit {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--base-mint-green);
    margin-bottom: 8px;
}

.pdf-card-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-deep-purple);
    margin-bottom: 10px;
}

.pdf-card-date {
    font-size: 0.95rem;
    color: var(--sub-coral-orange);
    font-weight: 600;
    margin-bottom: 8px;
}

.pdf-card-description {
    font-size: 0.95rem;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.pdf-card-btn {
    width: 100%;
    padding: 12px;
    background-color: var(--primary-deep-purple);
    color: var(--text-secondary);
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
}

.pdf-card-btn:hover {
    background-color: var(--primary-dark-purple);
}

/* Swiperページネーション */
.swiper-pagination-bullet {
    background-color: var(--primary-deep-purple);
    opacity: 0.3;
}

.swiper-pagination-bullet-active {
    opacity: 1;
    background-color: var(--primary-deep-purple);
}

@media (max-width: 768px) {
    .pdf-thumbnail-container {
        height: 400px;
    }
}

/* ========================================
   PDFモーダル
   ======================================== */
.pdf-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
}

.pdf-modal.active {
    display: block;
}

.pdf-modal-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(46, 26, 71, 0.85);
    cursor: pointer;
}

.pdf-modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 900px;
    height: 90%;
    background-color: var(--bg-white);
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translate(-50%, -48%);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

.pdf-modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 40px;
    height: 40px;
    background-color: var(--sub-coral-orange);
    color: var(--text-secondary);
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    z-index: 10;
}

.pdf-modal-close:hover {
    background-color: var(--sub-coral-light);
    transform: rotate(90deg);
}

.pdf-modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-deep-purple);
    margin-bottom: 15px;
    text-align: center;
}

.pdf-modal-iframe {
    width: 100%;
    height: calc(100% - 60px);
    border: none;
    border-radius: 10px;
}

@media (max-width: 768px) {
    .pdf-modal-content {
        width: 95%;
        height: 90%;
    }
}

/* ========================================
   問題提起セクション
   ======================================== */
.problem-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-white) 100%);
}

.timeline {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin: 50px 0;
    flex-wrap: wrap;
}

.timeline-item {
    text-align: center;
}

.timeline-item.active .timeline-badge {
    background-color: var(--sub-coral-orange);
    transform: scale(1.1);
}

.timeline-badge {
    display: inline-block;
    padding: 10px 20px;
    background-color: var(--primary-deep-purple);
    color: var(--text-secondary);
    border-radius: 50px;
    font-weight: 700;
    margin-bottom: 10px;
    transition: var(--transition);
}

.timeline-content h3 {
    font-size: 1.3rem;
    color: var(--primary-deep-purple);
    margin-bottom: 5px;
}

.timeline-arrow {
    font-size: 2rem;
    color: var(--primary-deep-purple);
}

.concerns-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-deep-purple);
    text-align: center;
    margin: 60px 0 30px;
}

.empathy-bridge {
    text-align: center;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-deep-purple);
    margin-top: 40px;
    line-height: 1.6;
}

.concerns-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.concern-card {
    background-color: var(--bg-white);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(75, 46, 131, 0.1);
    transition: var(--transition);
}

.concern-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(75, 46, 131, 0.2);
}

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

.concern-card p {
    font-size: 1.1rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* ========================================
   学ナビとはセクション
   ======================================== */
.about-section {
    padding: 80px 0;
    background-color: var(--base-mint-green);
}

.about-content {
    display: flex;
    align-items: center;
    gap: 60px;
    margin-top: 50px;
}

.about-image {
    flex: 1;
    min-width: 0;
}

.about-image img {
    border-radius: 20px;
}

.about-text {
    flex: 1;
}

.feature-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    align-items: flex-start;
}

.feature-number {
    width: 60px;
    height: 60px;
    background-color: var(--primary-deep-purple);
    color: var(--accent-vivid-yellow);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.3rem;
    font-weight: 900;
    flex-shrink: 0;
}

.feature-content h3 {
    font-size: 1.3rem;
    color: var(--primary-dark-purple);
    margin-bottom: 8px;
}

.feature-content p {
    color: var(--text-primary);
}

.organizer-info {
    margin-top: 50px;
    padding: 30px;
    background-color: var(--bg-white);
    border-radius: 15px;
    text-align: center;
}

.organizer-info p {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

@media (max-width: 1024px) {
    .about-content {
        flex-direction: column;
    }
}

/* ========================================
   参加の流れセクション
   ======================================== */
.flow-section {
    padding: 80px 0;
    background-color: var(--bg-white);
}

.flow-steps {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    margin-top: 50px;
}

.flow-step {
    background-color: var(--bg-white);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 4px 15px rgba(75, 46, 131, 0.1);
    text-align: center;
    max-width: 600px;
    width: 100%;
}

.flow-step-number {
    display: inline-block;
    padding: 10px 25px;
    background-color: var(--accent-vivid-yellow);
    color: var(--primary-dark-purple);
    border-radius: 50px;
    font-weight: 900;
    margin-bottom: 15px;
}

.flow-step h3 {
    font-size: 1.3rem;
    color: var(--primary-deep-purple);
    margin-bottom: 10px;
}

.flow-arrow {
    font-size: 2rem;
    color: var(--primary-deep-purple);
}

/* ========================================
   問い合わせフォームセクション
   ======================================== */
.contact-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-deep-purple) 0%, var(--primary-dark-purple) 100%);
    color: var(--text-secondary);
}

.contact-section .section-title {
    color: var(--accent-vivid-yellow);
}

.contact-form {
    max-width: 700px;
    margin: 50px auto 0;
    background-color: var(--bg-white);
    padding: 40px;
    border-radius: 20px;
}

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

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

.required {
    color: var(--sub-coral-orange);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--base-mint-green);
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-deep-purple);
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

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

.checkbox-label input[type="checkbox"] {
    width: auto;
}

.error-message {
    display: block;
    color: var(--sub-coral-orange);
    font-size: 0.9rem;
    margin-top: 5px;
}

.submit-btn {
    width: 100%;
    padding: 16px;
    background-color: var(--primary-deep-purple);
    color: var(--text-secondary);
    border: none;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
}

.submit-btn:hover {
    background-color: var(--primary-dark-purple);
    transform: translateY(-2px);
}

.form-note {
    text-align: center;
    color: var(--text-primary);
    margin-top: 15px;
    font-size: 0.9rem;
}

.form-success {
    max-width: 700px;
    margin: 50px auto 0;
    background-color: var(--bg-white);
    padding: 60px 40px;
    border-radius: 20px;
    text-align: center;
}

.success-icon {
    width: 80px;
    height: 80px;
    background-color: var(--base-mint-green);
    color: var(--text-secondary);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 3rem;
    margin: 0 auto 20px;
}

.form-success h3 {
    font-size: 2rem;
    color: var(--primary-deep-purple);
    margin-bottom: 15px;
}

.form-success p {
    color: var(--text-primary);
}

/* ========================================
   FAQセクション
   ======================================== */
.faq-section {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.faq-list {
    max-width: 800px;
    margin: 50px auto 0;
}

.faq-item {
    background-color: var(--bg-white);
    padding: 25px;
    border-radius: 15px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(75, 46, 131, 0.1);
}

.faq-question {
    font-size: 1.2rem;
    color: var(--primary-deep-purple);
    font-weight: 700;
    margin-bottom: 10px;
}

.faq-answer {
    color: var(--text-primary);
    line-height: 1.7;
}

/* ========================================
   フッター
   ======================================== */
.footer {
    background-color: var(--primary-dark-purple);
    color: var(--text-secondary);
    padding: 50px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 30px;
}

.footer-logo h3 {
    font-size: 1.8rem;
    color: var(--accent-vivid-yellow);
    margin-bottom: 5px;
}

.footer-info p,
.footer-links a {
    margin-bottom: 8px;
}

.footer-links a:hover {
    color: var(--accent-vivid-yellow);
}

.footer-copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 0.9rem;
}

/* ========================================
   固定CTAボタン（SP用）
   ======================================== */
.fixed-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--primary-deep-purple);
    padding: 15px 20px;
    padding-bottom: calc(15px + env(safe-area-inset-bottom, 0));
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.2);
    z-index: 999;
    display: none;
}

.fixed-cta.active {
    display: block;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

.fixed-cta-btn {
    display: block;
    width: 100%;
    padding: 15px;
    background-color: var(--sub-coral-orange);
    color: var(--text-secondary);
    border-radius: 50px;
    text-align: center;
    font-size: 1.1rem;
    font-weight: 700;
}

@media (min-width: 769px) {
    .fixed-cta {
        display: none !important;
    }
}

/* ========================================
   スマホ向け：読みやすさ・構造の改善
   ======================================== */
@media (max-width: 768px) {
    html {
        font-size: 16px;
    }
    
    .container {
        padding: 0 20px;
        max-width: 100%;
    }
    
    .section-title {
        font-size: 1.5rem;
        line-height: 1.4;
        margin-bottom: 12px;
        padding: 0 4px;
    }
    
    .section-subtitle {
        font-size: 0.9375rem;
        line-height: 1.6;
        margin-bottom: 28px;
        padding: 0 4px;
    }
    
    .section-empathy {
        font-size: 1rem;
        margin-bottom: 12px;
        padding: 0 8px;
        line-height: 1.6;
    }
    
    .pdf-carousel-section,
    .problem-section,
    .about-section,
    .flow-section,
    .contact-section,
    .faq-section {
        padding: 48px 0;
    }
    
    .hero {
        padding: 48px 0 56px;
    }
    
    .hero-title {
        font-size: 1.75rem;
        line-height: 1.35;
        margin-bottom: 16px;
    }
    
    .hero-subtitle {
        font-size: 1.0625rem;
        line-height: 1.6;
        margin-bottom: 14px;
    }
    
    .hero-benefits li {
        font-size: 0.9375rem;
        margin-bottom: 2px;
    }
    
    .hero-benefits-label {
        font-size: 0.9375rem;
        margin-bottom: 20px;
    }
    
    .hero-cta-btn {
        display: block;
        text-align: center;
        padding: 16px 24px;
        font-size: 1.0625rem;
        min-height: 48px;
        line-height: 1.4;
    }
    
    .timeline {
        flex-direction: column;
        align-items: center;
        gap: 8px;
        margin: 32px 0 24px;
    }
    
    .timeline-arrow {
        font-size: 1.25rem;
        transform: rotate(90deg);
    }
    
    .timeline-item {
        width: 100%;
        max-width: 280px;
    }
    
    .timeline-badge {
        padding: 8px 14px;
        font-size: 0.875rem;
    }
    
    .timeline-content h3 {
        font-size: 1.0625rem;
    }
    
    .concerns-title {
        font-size: 1.25rem;
        margin: 36px 0 20px;
        padding: 0 8px;
    }
    
    .empathy-bridge {
        font-size: 1.0625rem;
        margin-top: 28px;
        padding: 0 12px;
        line-height: 1.65;
    }
    
    .concerns-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        margin-top: 24px;
    }
    
    .concern-card {
        padding: 24px 20px;
        min-height: auto;
    }
    
    .concern-card p {
        font-size: 1rem;
        line-height: 1.6;
    }
    
    .concern-icon {
        font-size: 2.25rem;
    }
    
    .about-content {
        gap: 32px;
        margin-top: 28px;
    }
    
    .feature-item {
        flex-direction: row;
        gap: 16px;
        margin-bottom: 24px;
    }
    
    .feature-number {
        width: 48px;
        height: 48px;
        font-size: 1rem;
    }
    
    .feature-content h3 {
        font-size: 1.125rem;
    }
    
    .feature-content p {
        font-size: 0.9375rem;
        line-height: 1.6;
    }
    
    .organizer-info {
        margin-top: 32px;
        padding: 20px 16px;
    }
    
    .flow-steps {
        gap: 16px;
        margin-top: 28px;
    }
    
    .flow-step {
        padding: 20px 16px;
    }
    
    .flow-step-number {
        font-size: 0.875rem;
        margin-bottom: 8px;
    }
    
    .flow-step h3 {
        font-size: 1.0625rem;
        margin-bottom: 6px;
    }
    
    .flow-step p {
        font-size: 0.9375rem;
    }
    
    .flow-arrow {
        font-size: 1.25rem;
    }
    
    .contact-form .form-group {
        margin-bottom: 20px;
    }
    
    .contact-form label {
        font-size: 0.9375rem;
        display: block;
        margin-bottom: 6px;
    }
    
    .contact-form input,
    .contact-form select,
    .contact-form textarea {
        font-size: 16px;
        min-height: 48px;
        padding: 12px 14px;
        border-radius: 10px;
    }
    
    .contact-form textarea {
        min-height: 120px;
        padding: 12px 14px;
    }
    
    .checkbox-group {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    
    .checkbox-label {
        min-height: 48px;
        display: flex;
        align-items: center;
        padding: 12px;
        border-radius: 10px;
        background: var(--bg-light);
    }
    
    .submit-btn {
        min-height: 52px;
        font-size: 1.0625rem;
        padding: 16px 24px;
        margin-top: 8px;
    }
    
    .faq-question {
        font-size: 0.9375rem;
        line-height: 1.5;
        padding-right: 8px;
    }
    
    .faq-answer {
        font-size: 0.9375rem;
        line-height: 1.65;
    }
    
    .footer {
        padding: 32px 0 24px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }
    
    .fixed-cta-btn {
        min-height: 48px;
        padding: 14px 20px;
        font-size: 1rem;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .pdf-card {
        max-width: 100%;
    }
    
    .pdf-card-content {
        padding: 20px 16px;
    }
    
    .pdf-card-title {
        font-size: 1.125rem;
    }
    
    .pdf-card-date,
    .pdf-card-description {
        font-size: 0.875rem;
    }
    
    .pdf-card-btn {
        min-height: 48px;
        padding: 14px;
    }
    
    .pdf-thumbnail-container {
        height: 320px;
    }
    
    .pdf-swiper {
        padding: 12px 0 48px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .section-title {
        font-size: 1.375rem;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .hero-target-badge {
        font-size: 0.8125rem;
        padding: 6px 12px;
    }
}

/* ========================================
   アニメーション（スクロール）
   ======================================== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}