/* ==================== 
   基本設定
   ==================== */
:root {
    --primary-color: #0077BE;
    --secondary-color: #FFB84D;
    --accent-color: #00A8A8;
    --text-color: #333333;
    --text-light: #666666;
    --bg-color: #FFFFFF;
    --bg-light: #F8F9FA;
    --bg-ocean: #E8F4F8;
    --border-color: #E0E0E0;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

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

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

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

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

/* ==================== 
   ヘッダー
   ==================== */
.header {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

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

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

.logo-img {
    height: 50px;
    width: auto;
    object-fit: contain;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-list a {
    font-weight: 500;
    color: var(--text-color);
    padding: 8px 0;
    position: relative;
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.nav-list a:hover::after,
.nav-list a.active::after {
    width: 100%;
}

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

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    transition: var(--transition);
}

/* ==================== 
   ヒーローセクション
   ==================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: url('../images/hero-bg.jpg') center center / cover no-repeat;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 119, 190, 0.75);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3); /* 活動写真が見えるように透明度を調整 */
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: white;
    padding: 40px 20px;
    margin-top: 20vh; /* 背景のロゴが見えるように下に配置 */
}

.hero-logo {
    margin-bottom: 30px;
    display: none; /* 背景画像にロゴが含まれているため非表示 */
}

.hero-logo img {
    max-width: 300px;
    margin: 0 auto;
    filter: brightness(0) invert(1);
}

.hero-title {
    font-size: clamp(1.2rem, 4vw, 2.2rem);
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    line-height: 1.2;
    white-space: nowrap;
}

.hero-subtitle {
    font-size: 1.2rem;
    line-height: 1.8;
    margin-bottom: 40px;
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
    color: white;
    font-size: 2rem;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* ==================== 
   ボタン
   ==================== */
.btn {
    display: inline-block;
    padding: 15px 40px;
    border-radius: 50px;
    font-weight: 500;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background-color: #005A94;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: transparent;
    color: white;
    border-color: white;
}

.btn-secondary:hover {
    background-color: white;
    color: var(--primary-color);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: white;
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 50px;
    color: var(--text-color);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--primary-color);
    margin: 20px auto 0;
}

/* ==================== 
   ミッションセクション
   ==================== */
.mission {
    background-color: var(--bg-ocean);
}

.mission-text {
    text-align: center;
    font-size: 1.1rem;
    line-height: 2;
    max-width: 900px;
    margin: 0 auto;
}

/* ==================== 
   活動内容セクション
   ==================== */
.activities-overview {
    background-color: var(--bg-light);
}

.activities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.activity-card {
    background-color: white;
    padding: 40px 30px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

.activity-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.activity-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
}

.activity-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.activity-card p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 20px;
}

.activity-link {
    color: var(--primary-color);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.activity-link:hover {
    gap: 12px;
}

/* ==================== 
   参加・応援セクション
   ==================== */
.support {
    background-color: var(--bg-color);
}

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

.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.support-card {
    text-align: center;
    padding: 40px 30px;
    border: 2px solid var(--border-color);
    border-radius: 15px;
    transition: var(--transition);
}

.support-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow);
}

.support-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.support-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.support-card p {
    color: var(--text-light);
    margin-bottom: 25px;
    line-height: 1.8;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

/* ==================== 
   お知らせセクション
   ==================== */
.news-section {
    background-color: var(--bg-light);
}

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

.news-item {
    background-color: white;
    padding: 30px;
    margin-bottom: 20px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.news-item:hover {
    box-shadow: var(--shadow-lg);
}

.news-date {
    display: inline-block;
    color: var(--primary-color);
    font-weight: 500;
    font-size: 0.95rem;
    margin-bottom: 10px;
}

.news-title {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-color);
}

.news-excerpt {
    color: var(--text-light);
    line-height: 1.8;
}

.news-button-wrapper {
    text-align: center;
    margin-top: 40px;
}

/* ==================== 
   ページヘッダー
   ==================== */
.page-header {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 80px 0 60px;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.page-header p {
    font-size: 1.2rem;
    font-weight: 300;
}

/* ==================== 
   理念セクション
   ==================== */
.philosophy {
    background-color: var(--bg-ocean);
}

.philosophy-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.philosophy-lead {
    font-size: 1.5rem;
    font-weight: 500;
    line-height: 2;
    margin-bottom: 30px;
    color: var(--primary-color);
}

.philosophy-content p {
    font-size: 1.1rem;
    line-height: 2;
    margin-bottom: 20px;
}

/* ==================== 
   代表メッセージ
   ==================== */
.message {
    background-color: var(--bg-color);
}

.message-content {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 50px;
    align-items: start;
}

.message-photo {
    text-align: center;
}

.message-photo img {
    width: 100%;
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
    margin-bottom: 15px;
}

.photo-caption {
    font-size: 1rem;
    color: var(--text-color);
    font-weight: 500;
}

.message-text h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.message-text p {
    font-size: 1.1rem;
    line-height: 2;
    margin-bottom: 20px;
}

.message-signature {
    text-align: right;
    margin-top: 40px;
    font-size: 1.1rem;
}

@media (max-width: 768px) {
    .message-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .message-photo img {
        max-width: 300px;
        margin: 0 auto 15px;
    }
}

/* ==================== 
   団体概要
   ==================== */
.organization {
    background-color: var(--bg-light);
}

.info-table {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.info-table tr {
    border-bottom: 1px solid var(--border-color);
}

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

.info-table th {
    background-color: var(--bg-ocean);
    color: var(--text-color);
    font-weight: 600;
    padding: 20px;
    text-align: left;
    width: 200px;
    vertical-align: top;
}

.info-table td {
    padding: 20px;
    line-height: 1.8;
}

.info-table ul {
    list-style-position: inside;
    padding-left: 0;
}

.info-table li {
    margin-bottom: 8px;
}

/* ==================== 
   役員構成
   ==================== */
.board {
    background-color: var(--bg-color);
}

.board-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 900px;
    margin: 0 auto;
}

.board-member {
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
}

.board-member h4 {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.board-member p {
    color: var(--text-color);
    line-height: 1.8;
}

/* ==================== 
   活動風景ギャラリー
   ==================== */
.activity-gallery {
    background-color: var(--bg-light);
}

.gallery-intro {
    text-align: center;
    font-size: 1.1rem;
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto 40px;
    color: var(--text-light);
}

.gallery-image {
    max-width: 1000px;
    margin: 0 auto;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.gallery-image img {
    width: 100%;
    height: auto;
    display: block;
}

.gallery-caption {
    text-align: center;
    font-size: 1rem;
    line-height: 1.8;
    max-width: 800px;
    margin: 30px auto 0;
    color: var(--text-light);
    font-style: italic;
}

/* ==================== 
   活動詳細
   ==================== */
.activities-intro {
    background-color: var(--bg-ocean);
    padding: 40px 0;
}

.intro-text {
    text-align: center;
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto;
}

.activity-detail {
    padding: 80px 0;
}

.activity-detail.alt {
    background-color: var(--bg-light);
}

.activity-detail-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.activity-detail-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 30px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
}

.activity-detail h2 {
    font-size: clamp(1rem, 3.5vw, 2rem);
    margin-bottom: 20px;
    color: var(--text-color);
    white-space: nowrap;
}

.activity-lead {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 40px;
    line-height: 1.8;
}

.activity-description {
    text-align: left;
}

.activity-description h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.activity-description ul {
    list-style: none;
    padding-left: 0;
}

.activity-description li {
    margin-bottom: 25px;
    padding-left: 30px;
    position: relative;
}

.activity-description li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.2rem;
}

.activity-description strong {
    display: block;
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--text-color);
}

/* ==================== 
   CTAセクション
   ==================== */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    text-align: center;
    padding: 80px 20px;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.cta-section p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    line-height: 1.8;
}

/* ==================== 
   お知らせアーカイブ
   ==================== */
.news-archive {
    background-color: var(--bg-color);
}

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

.news-archive-item {
    background-color: white;
    padding: 30px;
    margin-bottom: 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    gap: 30px;
}

.news-archive-item:hover {
    box-shadow: var(--shadow-lg);
}

.news-archive-date {
    flex-shrink: 0;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1rem;
}

.news-archive-content {
    flex: 1;
}

.news-category {
    display: inline-block;
    padding: 5px 15px;
    background-color: var(--bg-ocean);
    color: var(--primary-color);
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: 20px;
    margin-bottom: 15px;
}

.news-category.activity {
    background-color: #E8F5E9;
    color: #2E7D32;
}

.news-category.event {
    background-color: #FFF3E0;
    color: #E65100;
}

.news-archive-content h2 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.news-archive-content p {
    color: var(--text-light);
    line-height: 1.8;
}

/* ==================== 
   お問い合わせフォーム
   ==================== */
.contact-form-section {
    background-color: var(--bg-color);
}

.contact-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px;
    font-size: 1.1rem;
    line-height: 1.8;
}

/* お問い合わせ方法カード */
.contact-methods {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-top: 35px;
    flex-wrap: wrap;
}

.contact-method-card {
    background: white;
    border-radius: 15px;
    padding: 30px 25px;
    width: 260px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    text-align: center;
    border: 2px solid var(--bg-light);
    transition: transform 0.3s, box-shadow 0.3s;
}

.contact-method-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 28px rgba(0,0,0,0.12);
}

.contact-method-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    color: white;
    font-size: 1.6rem;
}

.contact-method-icon.instagram-icon {
    background: linear-gradient(135deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
}

.contact-method-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 10px;
}

.contact-method-card p {
    font-size: 0.92rem;
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 15px;
}

.contact-method-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-method-divider span {
    background: var(--bg-light);
    color: var(--text-light);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: 20px;
    white-space: nowrap;
}

.btn-instagram {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(135deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
    color: white;
    padding: 10px 18px;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition: opacity 0.3s, transform 0.3s;
}

.btn-instagram:hover {
    opacity: 0.85;
    transform: scale(1.05);
    color: white;
}

@media (max-width: 600px) {
    .contact-methods {
        flex-direction: column;
        align-items: center;
    }
    .contact-method-card {
        width: 100%;
        max-width: 320px;
    }
    .contact-method-divider span {
        transform: rotate(90deg);
    }
}

.contact-form {
    max-width: 700px;
    margin: 0 auto;
    background-color: white;
    padding: 50px;
    border-radius: 15px;
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: 30px;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 10px;
    color: var(--text-color);
}

.required {
    color: #E53935;
    font-size: 0.85rem;
    margin-left: 5px;
}

.optional {
    color: var(--text-light);
    font-size: 0.85rem;
    margin-left: 5px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: 'Noto Sans JP', sans-serif;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 119, 190, 0.1);
}

.form-privacy {
    margin-bottom: 30px;
}

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

.checkbox-label input {
    margin-top: 4px;
    cursor: pointer;
}

.privacy-note {
    margin-top: 10px;
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.6;
}

.form-submit {
    text-align: center;
}

.form-submit button {
    min-width: 200px;
}

.form-message {
    margin-top: 20px;
    padding: 15px;
    border-radius: 8px;
    text-align: center;
    display: none;
}

.form-message.success {
    background-color: #E8F5E9;
    color: #2E7D32;
    display: block;
}

.form-message.error {
    background-color: #FFEBEE;
    color: #C62828;
    display: block;
}

/* ==================== 
   アクセス情報
   ==================== */
.contact-info {
    background-color: var(--bg-light);
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info-item {
    background-color: white;
    padding: 40px 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.contact-info-item h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-info-item h3 i {
    color: var(--primary-color);
}

.contact-info-item p {
    line-height: 1.8;
    color: var(--text-light);
}

.contact-info-item a {
    color: var(--primary-color);
}

.contact-info-item a:hover {
    text-decoration: underline;
}

.contact-social {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-social a {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--primary-color);
    font-weight: 500;
}

.contact-social a:hover {
    color: var(--accent-color);
}

/* ==================== 
   よくある質問
   ==================== */
.faq {
    background-color: var(--bg-color);
}

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

.faq-item {
    background-color: white;
    padding: 30px;
    margin-bottom: 20px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary-color);
}

.faq-item h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.faq-item p {
    color: var(--text-light);
    line-height: 1.8;
}

/* ==================== 
   フッター
   ==================== */
.footer {
    background-color: #2C3E50;
    color: #ECF0F1;
    padding: 60px 0 30px;
}

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

.footer-logo img {
    max-width: 180px;
    margin-bottom: 15px;
    filter: brightness(0) invert(1);
}

.footer-tagline {
    font-size: 0.95rem;
    color: #BDC3C7;
}

.footer-info h4,
.footer-links h4,
.footer-social h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: white;
}

.footer-info p {
    line-height: 1.8;
    color: #BDC3C7;
    margin-bottom: 10px;
}

.footer-info i {
    margin-right: 8px;
    color: var(--primary-color);
}

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

.footer-info a:hover {
    text-decoration: underline;
}

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

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #BDC3C7;
}

.footer-links a:hover {
    color: white;
}

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

.social-icons a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: var(--transition);
}

.social-icons a:hover {
    background-color: var(--primary-color);
    transform: scale(1.1);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #95A5A6;
    font-size: 0.9rem;
}

/* ==================== 
   寄付ページ
   ==================== */
.donation-intro {
    background-color: var(--bg-ocean);
}

.donation-message {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.donation-message p {
    font-size: 1.1rem;
    line-height: 2;
    margin-bottom: 20px;
}

.donation-message strong {
    font-size: 1.3rem;
    color: var(--primary-color);
}

.donation-usage {
    background-color: var(--bg-light);
}

.usage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.usage-card {
    background-color: white;
    padding: 40px 30px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    text-align: center;
}

.usage-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
}

.usage-card h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--text-color);
}

.usage-card ul {
    list-style: none;
    padding: 0;
    text-align: left;
}

.usage-card li {
    padding: 8px 0;
    color: var(--text-light);
    position: relative;
    padding-left: 25px;
}

.usage-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.donation-guide {
    background-color: var(--bg-color);
}

.guide-intro {
    text-align: center;
    font-size: 1.1rem;
    margin-bottom: 40px;
    color: var(--text-light);
}

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

.guide-item {
    display: flex;
    gap: 30px;
    align-items: center;
    background-color: var(--bg-light);
    padding: 30px;
    margin-bottom: 20px;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.guide-amount {
    flex-shrink: 0;
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: 700;
}

.guide-description h4 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-color);
}

.guide-description p {
    color: var(--text-light);
    line-height: 1.8;
}

.guide-note {
    text-align: center;
    margin-top: 30px;
    color: var(--text-light);
    font-size: 0.95rem;
}

.donation-method {
    background-color: var(--bg-light);
}

.method-box {
    max-width: 800px;
    margin: 0 auto 30px;
    background-color: white;
    border-radius: 15px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.method-box h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.method-content {
    margin-top: 20px;
}

.preparing-notice {
    background-color: #FFF9E6;
    border-left: 4px solid #FFB84D;
    padding: 20px;
    border-radius: 5px;
}

.preparing-notice i {
    color: #FFB84D;
    margin-right: 10px;
    font-size: 1.2rem;
}

.preparing-notice p {
    margin-bottom: 10px;
    line-height: 1.8;
}

.bank-info {
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: 10px;
    margin-top: 20px;
}

.bank-table {
    width: 100%;
    border-collapse: collapse;
}

.bank-table tr {
    border-bottom: 1px solid var(--border-color);
}

.bank-table th {
    text-align: left;
    padding: 15px;
    width: 150px;
    font-weight: 600;
    color: var(--text-color);
}

.bank-table td {
    padding: 15px;
    color: var(--text-light);
}

.bank-note {
    margin-top: 15px;
    font-size: 0.9rem;
    color: var(--text-light);
}

.method-button {
    text-align: center;
    margin-top: 20px;
}

.donation-receipt {
    background-color: var(--bg-color);
}

.receipt-content {
    max-width: 800px;
    margin: 0 auto;
}

.receipt-content p {
    font-size: 1.1rem;
    line-height: 2;
    margin-bottom: 20px;
}

.receipt-list {
    list-style: none;
    padding: 20px;
    background-color: var(--bg-light);
    border-radius: 10px;
    margin: 20px 0;
}

.receipt-list li {
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
}

.receipt-list li::before {
    content: '●';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.receipt-note {
    background-color: #FFF3E0;
    padding: 15px;
    border-radius: 5px;
    border-left: 4px solid #FFB84D;
    font-size: 0.95rem;
}

.donation-corporate {
    background-color: var(--bg-light);
}

.corporate-content {
    max-width: 800px;
    margin: 0 auto;
}

.corporate-content p {
    font-size: 1.1rem;
    line-height: 2;
    margin-bottom: 20px;
}

.corporate-benefits {
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    margin: 30px 0;
}

.corporate-benefits h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.corporate-benefits ul {
    list-style: none;
    padding: 0;
}

.corporate-benefits li {
    padding: 10px 0;
    font-size: 1.05rem;
    line-height: 1.8;
}

.corporate-benefits i {
    color: var(--primary-color);
    margin-right: 10px;
}

.corporate-button {
    text-align: center;
    margin-top: 30px;
}

.donation-thanks {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 80px 20px;
}

.thanks-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.thanks-content h2 {
    font-size: 2rem;
    margin-bottom: 30px;
}

.thanks-content p {
    font-size: 1.2rem;
    line-height: 2;
    margin-bottom: 20px;
}

.thanks-signature {
    margin-top: 40px;
    font-size: 1.1rem;
    font-weight: 600;
}

@media (max-width: 768px) {
    .guide-item {
        flex-direction: column;
        text-align: center;
    }
    
    .guide-amount {
        width: 100px;
        height: 100px;
        font-size: 1.1rem;
    }
    
    .method-box {
        padding: 25px 20px;
    }
}

/* ==================== 
   レスポンシブ
   ==================== */
@media (max-width: 768px) {
    .nav-list {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: rgba(255, 255, 255, 0.98);
        flex-direction: column;
        justify-content: flex-start;
        padding: 40px 0;
        transition: var(--transition);
        box-shadow: var(--shadow-lg);
    }

    .nav-list.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

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

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

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

    .hero-title {
        font-size: clamp(1rem, 5.5vw, 1.5rem);
        line-height: 1.2;
        white-space: nowrap;
    }

    .hero-subtitle {
        font-size: 0.95rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .section-title {
        font-size: 2rem;
    }

    .activities-grid,
    .support-grid {
        grid-template-columns: 1fr;
    }

    .page-header h1 {
        font-size: 2rem;
    }

    .contact-form {
        padding: 30px 20px;
    }

    .news-archive-item {
        flex-direction: column;
        gap: 15px;
    }

    .info-table {
        display: block;
    }

    .info-table tr {
        display: block;
        margin-bottom: 20px;
    }

    .info-table th,
    .info-table td {
        display: block;
        width: 100%;
    }

    .info-table th {
        border-bottom: 2px solid var(--primary-color);
        margin-bottom: 10px;
    }
}