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

:root {
    /* カラーパレット */
    --primary-color: #0EA5E9;
    --primary-dark: #0284C7;
    --primary-light: #38BDF8;
    --secondary-color: #F59E0B;
    --secondary-dark: #D97706;
    --accent-color: #10B981;
    
    /* ニュートラルカラー */
    --bg-color: #FAFAF9;
    --bg-secondary: #F5F5F4;
    --text-primary: #1C1917;
    --text-secondary: #57534E;
    --text-muted: #78716C;
    --border-color: #E7E5E4;
    
    /* タイポグラフィ */
    --font-primary: 'Zen Kaku Gothic New', 'Noto Sans JP', sans-serif;
    --font-secondary: 'Noto Sans JP', sans-serif;
    
    /* スペーシング */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 6rem;
    
    /* アニメーション */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* その他 */
    --border-radius: 1rem;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    background-color: var(--bg-color);
    line-height: 1.7;
    overflow-x: hidden;
}

/* ===================================
   ユーティリティクラス
   =================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.pc-only {
    display: inline;
}

/* タブレット向け */
@media (min-width: 769px) and (max-width: 1024px) {
    .logo-image {
        height: 35px;
    }
}

@media (max-width: 768px) {
    .pc-only {
        display: none;
    }

    .logo-image {
        height: 30px;
    }

    .header-content {
        padding: 0.75rem 0;
    }
}

/* 小型スマートフォン向け */
@media (max-width: 480px) {
    .logo-image {
        height: 28px;
    }

    .header-content {
        padding: 0.625rem 0;
    }
}

/* ===================================
   ヘッダー
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    animation: slideDown 0.5s ease;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.logo-link {
    display: block;
    text-decoration: none;
}

.logo-image {
    height: 38px;
    width: auto;
    display: block;
    transition: transform var(--transition-normal);
}

.logo-image:hover {
    transform: scale(1.05);
}

.logo-text {
    font-family: var(--font-primary);
    font-size: 1.75rem;
    font-weight: 900;
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
}

.logo-main {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-sub {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 0.35rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 28px;
    height: 3px;
    background-color: var(--text-primary);
    transition: var(--transition-normal);
    border-radius: 2px;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-list a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: color var(--transition-normal);
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    transition: width var(--transition-normal);
}

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

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

/* アクティブ状態のスタイル */
.nav-list a.active {
    color: var(--primary-color);
    font-weight: 700;
}

.nav-list a.active::after {
    width: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-list {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: white;
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all var(--transition-normal);
    }

    .nav.active .nav-list {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
}

/* ===================================
   ヒーローセクション
   =================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    margin-top: 80px;
}

.hero-background {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #E0F2FE 0%, #DBEAFE 50%, #E0E7FF 100%);
    z-index: -1;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(14, 165, 233, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(16, 185, 129, 0.1) 0%, transparent 50%);
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-2xl) 0;
    animation: fadeInUp 0.8s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.5rem;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-md);
    animation: fadeInUp 0.8s ease 0.2s both;
}

.badge-icon {
    font-size: 1.2rem;
    animation: rotate 4s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.title-line {
    display: block;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.title-accent {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease 0.6s both;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.8s ease 0.8s both;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 1s both;
}

/* ボタンスタイル */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

/* ===================================
   セクション共通スタイル
   =================================== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.1), rgba(16, 185, 129, 0.1));
    color: var(--primary-color);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

/* ===================================
   ご挨拶セクション
   =================================== */
.greeting {
    padding: var(--spacing-2xl) 0;
    background: white;
}

.greeting-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.greeting-image {
    position: sticky;
    top: 120px;
}

.greeting-image img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-xl);
    display: block;
}

.image-caption {
    margin-top: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-muted);
    text-align: center;
}

.greeting-text {
    max-width: 700px;
}

.greeting-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.greeting-intro {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.greeting-story {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.story-item {
    display: grid;
    grid-template-columns: 60px 1fr;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    transition: transform var(--transition-normal);
}

.story-item:hover {
    transform: translateX(8px);
}

.story-icon {
    font-size: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.story-content h4 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.story-content p {
    line-height: 1.8;
    color: var(--text-secondary);
}

.greeting-message {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.05), rgba(16, 185, 129, 0.05));
    border-left: 4px solid var(--primary-color);
    border-radius: var(--border-radius);
}

.greeting-message h4 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.greeting-message p {
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
}

.message-highlight {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-top: var(--spacing-md) !important;
}

.greeting-signature {
    margin-top: var(--spacing-xl);
    text-align: right;
    font-size: 1.125rem;
}

.signature-name {
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 0.5rem;
}

@media (max-width: 968px) {
    .greeting-content {
        grid-template-columns: 1fr;
    }

    .greeting-image {
        position: static;
    }

    .story-item {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

/* ===================================
   BEMOとはセクション
   =================================== */
.about {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.about-card {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.about-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.about-card.image-only-card {
    background: none;
    box-shadow: none;
    overflow: visible;
    border-radius: 0;
    padding: 0;
    margin: 0;
}

.about-card.image-only-card img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
}

.about-card.image-only-card:hover {
    transform: none;
}

.about-card.image-only-card:hover img {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    transition: all var(--transition-normal);
}

.card-image {
    width: 100%;
    overflow: hidden;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform var(--transition-slow);
}

.about-card:hover .card-image img {
    transform: scale(1.05);
}

.card-content {
    padding: var(--spacing-lg);
}

.card-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.card-content p {
    line-height: 1.8;
    color: var(--text-secondary);
}

.card-description {
    font-size: 1.125rem;
    line-height: 1.8;
}

/* カードリスト */
.card-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.list-item {
    display: grid;
    grid-template-columns: 50px 1fr;
    gap: var(--spacing-md);
    align-items: start;
}

.list-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
}

.list-content h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--primary-color);
}

.list-content p {
    font-size: 0.938rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* フィーチャーグリッド */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.1), rgba(16, 185, 129, 0.1));
    border-radius: 50%;
    color: var(--primary-color);
}

.feature-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.feature-item h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.feature-item p {
    font-size: 0.938rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* デュアルアプローチ */
.dual-approach {
    display: grid;
    gap: var(--spacing-md);
}

.approach-item {
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: calc(var(--border-radius) / 2);
    border-left: 4px solid var(--primary-color);
}

.approach-item h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.approach-item p {
    font-size: 0.938rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* 重要性グリッド */
.importance-grid {
    display: grid;
    gap: var(--spacing-md);
}

.importance-item {
    padding: var(--spacing-md);
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.05), rgba(16, 185, 129, 0.05));
    border-radius: calc(var(--border-radius) / 2);
}

.importance-item h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.importance-item p {
    font-size: 0.938rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .feature-grid {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   お問い合わせセクション
   =================================== */
.contact {
    padding: var(--spacing-2xl) 0;
    background: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.info-card {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    transition: transform var(--transition-normal);
}

.info-card:hover {
    transform: translateX(8px);
}

.info-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    border-radius: 50%;
}

.info-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.info-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-normal);
}

.info-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.info-text {
    color: var(--text-secondary);
    line-height: 1.8;
}

.contact-map {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
}

.map-placeholder {
    text-align: center;
    color: var(--text-muted);
}

@media (max-width: 968px) {
    .contact-content {
        grid-template-columns: 1fr;
    }

    .info-card {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .info-icon {
        margin: 0 auto;
    }
}

/* ===================================
   学習者の声セクション
   =================================== */
.voices {
    padding: var(--spacing-2xl) 0;
    background: white;
}

.voices-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.voice-card {
    background: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.voice-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.voice-image {
    width: 120px;
    height: 120px;
    margin-bottom: var(--spacing-md);
}

.voice-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    border: 4px solid var(--primary-light);
}

.voice-content {
    flex: 1;
}

.voice-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.voice-text {
    color: var(--text-secondary);
    line-height: 1.8;
    text-align: left;
}

@media (max-width: 968px) {
    .voices-grid {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   お知らせセクション
   =================================== */
.news {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-secondary);
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.news-item {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

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

.news-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

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

.admin-link {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: var(--text-muted);
    color: white;
    text-decoration: none;
    border-radius: calc(var(--border-radius) / 2);
    font-size: 0.875rem;
    font-weight: 600;
    transition: background var(--transition-normal);
}

.admin-link:hover {
    background: var(--text-secondary);
}

@media (max-width: 768px) {
    .news-item {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   学習の流れセクション
   =================================== */
.flow {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.flow-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.flow-item {
    background: none;
    box-shadow: none;
    overflow: visible;
    border-radius: 0;
    padding: 0;
    margin: 0;
}

.flow-item img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.flow-item:hover img {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

@media (max-width: 768px) {
    .flow-item img {
        border-radius: 8px;
    }
}

/* ===================================
   論理的思考セクション
   =================================== */
.logic {
    padding: var(--spacing-2xl) 0;
    background: white;
}

.logic-gallery {
    display: grid;
    gap: var(--spacing-lg);
}

.logic-item {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.logic-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.logic-item img {
    width: 100%;
    height: auto;
    display: block;
}

/* ===================================
   フッター
   =================================== */
.footer {
    background: linear-gradient(135deg, #1E293B, #334155);
    color: white;
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-logo h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.footer-logo p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-info p {
    margin-bottom: 0.5rem;
    color: rgba(255, 255, 255, 0.9);
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

/* ===================================
   アニメーション
   =================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}