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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
    line-height: 1.7;
    color: #2c3e50;
    overflow-x: hidden;
    background: #fafbfc;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

/* ハンバーガーボタン */
.hamburger {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    width: 40px;
    height: 40px;
    background: rgba(102, 126, 234, 0.9);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
    position: fixed;
    top: 20px;
    right: 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
}

.hamburger:hover {
    background: rgba(102, 126, 234, 1);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
    transform: scale(1.05);
}

.hamburger-line {
    width: 100%;
    height: 3px;
    background: white;
    border-radius: 3px;
    transition: all 0.3s ease;
    transform-origin: center;
    display: block;
}

.hamburger.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    margin: 0;
    padding: 0;
}

/* デスクトップでもハンバーガーメニューを使用 */
@media (min-width: 769px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 320px;
        height: 100vh;
        background: linear-gradient(135deg, rgba(102, 126, 234, 0.98) 0%, rgba(118, 75, 162, 0.98) 100%);
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        padding: 80px 40px 40px;
        gap: 0;
        transition: right 0.3s ease-in-out;
        box-shadow: -4px 0 20px rgba(0, 0, 0, 0.2);
        backdrop-filter: blur(10px);
        z-index: 1000;
        overflow-y: auto;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu li {
        width: 100%;
        margin: 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-menu a {
        display: block;
        padding: 1.2rem 0;
        font-size: 1.1rem;
        white-space: normal;
        width: 100%;
    }

    .nav-menu a::after {
        display: none;
    }

    .nav-menu a:hover {
        opacity: 0.8;
        padding-left: 10px;
    }
}

.nav-menu a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 0;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: white;
    transition: width 0.3s ease;
}

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

.nav-menu a:hover {
    opacity: 1;
}

/* ヒーローセクション */
.hero {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.7) 0%, rgba(118, 75, 162, 0.7) 100%), url('images/hero/hero-background.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: scroll;
    background-repeat: no-repeat;
    color: white;
    padding: 160px 40px;
    text-align: center;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

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

.hero-content {
    max-width: 900px;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    letter-spacing: -1px;
    line-height: 1.2;
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: 1.4rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    font-weight: 300;
    letter-spacing: 0.5px;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.cta-button {
    display: inline-block;
    background: white;
    color: #667eea;
    padding: 18px 48px;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    animation: fadeInUp 1s ease-out 0.4s both;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    letter-spacing: 0.5px;
}

.cta-button:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
    background: #f8f9fa;
}

/* お知らせ */
.announcement {
    padding: 100px 40px;
    background: #ffffff;
}

.announcements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.announcement-banner {
    background: white;
    border-radius: 24px;
    padding: 4rem;
    box-shadow: 0 16px 64px rgba(255, 107, 107, 0.25);
    text-align: center;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 107, 107, 0.1);
}

.announcement-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, #ff6b6b, #ee5a6f, #ff6b6b);
    background-size: 200% 100%;
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

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

.announcement-badge {
    display: inline-block;
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a6f 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-weight: bold;
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.4);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.announcement-title {
    font-size: 2rem;
    color: #333;
    margin-bottom: 1rem;
    font-weight: bold;
}

.announcement-text {
    font-size: 1.2rem;
    color: #666;
    margin: 0 0 2rem 0;
}

.trial-session {
    margin-top: 2.5rem;
    padding-top: 2.5rem;
    border-top: 2px solid #f0f0f0;
}

.trial-title {
    font-size: 1.5rem;
    color: #ff6b6b;
    margin-bottom: 1.5rem;
    font-weight: bold;
}

.trial-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    text-align: left;
    margin-top: 1.5rem;
}

.trial-detail-item {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 10px;
    border-left: 4px solid #ff6b6b;
}

.trial-detail-item strong {
    display: block;
    color: #333;
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
    font-weight: bold;
}

.trial-detail-item p {
    color: #666;
    line-height: 1.8;
    margin: 0;
}

.trial-detail-item .address {
    font-size: 0.95rem;
    color: #888;
    margin-top: 0.5rem;
}

.announcement-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    text-align: left;
    margin: 1.5rem 0;
}

.announcement-detail-item {
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 12px;
    border-left: 4px solid #667eea;
}

.announcement-detail-item strong {
    display: block;
    color: #333;
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
    font-weight: bold;
}

.announcement-detail-item p {
    color: #666;
    line-height: 1.8;
    margin: 0;
}

/* セクション共通 */
section {
    padding: 100px 40px;
}

.section-title {
    font-size: 2.8rem;
    text-align: center;
    margin-bottom: 4rem;
    color: #2c3e50;
    position: relative;
    font-weight: 700;
    letter-spacing: -1px;
}

.section-title::after {
    content: '';
    display: block;
    width: 100px;
    height: 5px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    margin: 1.5rem auto 0;
    border-radius: 3px;
}

/* スクールについて */
.about {
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
}

.about-intro {
    max-width: 800px;
    margin: 0 auto 4rem;
    text-align: center;
}

.about-lead {
    font-size: 1.4rem;
    line-height: 1.8;
    color: #2c3e50;
    font-weight: 500;
    letter-spacing: 0.3px;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: start;
}

.about-text {
    font-size: 1.1rem;
    line-height: 2;
    color: #4a5568;
}

.about-text > p {
    margin-bottom: 2.5rem;
}

.about-target {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    padding: 2.5rem;
    border-radius: 16px;
    border-left: 4px solid #667eea;
}

.about-target-title {
    font-size: 1.3rem;
    color: #2c3e50;
    margin-bottom: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.3px;
}

.about-target-list {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem 0;
}

.about-target-list li {
    padding: 0.8rem 0 0.8rem 2rem;
    position: relative;
    color: #4a5568;
    line-height: 1.7;
    border-bottom: 1px solid rgba(102, 126, 234, 0.1);
}

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

.about-target-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
    font-size: 1.2rem;
}

.about-target-note {
    margin: 0;
    font-size: 1rem;
    color: #667eea;
    font-weight: 500;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 1.8rem;
}

.feature {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(102, 126, 234, 0.08);
    position: relative;
    overflow: hidden;
}

.feature::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transform: scaleY(0);
    transition: transform 0.4s ease;
}

.feature:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.12);
    border-color: rgba(102, 126, 234, 0.2);
}

.feature:hover::before {
    transform: scaleY(1);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: block;
}

.feature h3 {
    color: #2c3e50;
    margin-bottom: 0.8rem;
    font-size: 1.3rem;
    font-weight: 600;
    letter-spacing: -0.3px;
}

.feature p {
    color: #718096;
    line-height: 1.8;
    margin: 0;
}

/* レッスン */
.lesson-info {
    text-align: center;
    margin-bottom: 4rem;
}

.lesson-target {
    display: inline-block;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem 4rem;
    border-radius: 50px;
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.25);
    transition: all 0.3s ease;
}

.lesson-target:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(102, 126, 234, 0.35);
}

.lesson-target strong {
    display: block;
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
    opacity: 0.95;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.lesson-target p {
    font-size: 1.4rem;
    font-weight: 700;
    margin: 0;
    letter-spacing: -0.3px;
}

.schools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.school-card {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
    border-top: 5px solid #667eea;
    border: 1px solid rgba(102, 126, 234, 0.1);
}

.school-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(102, 126, 234, 0.2);
    border-color: rgba(102, 126, 234, 0.3);
}

.school-name {
    font-size: 2rem;
    color: #667eea;
    margin-bottom: 2rem;
    text-align: center;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.school-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.school-detail-item {
    padding-bottom: 1rem;
    border-bottom: 1px solid #f0f0f0;
}

.school-detail-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.school-detail-item strong {
    display: block;
    color: #333;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    font-weight: bold;
}

.school-detail-item p {
    color: #666;
    line-height: 1.8;
    margin: 0;
}

.school-detail-item .sub-location {
    font-size: 0.9rem;
    color: #888;
    margin-top: 0.3rem;
    font-style: italic;
}

.school-detail-item.highlight {
    background: linear-gradient(135deg, #fff5f5 0%, #ffe5e5 100%);
    padding: 1rem;
    border-radius: 10px;
    border: none;
    text-align: center;
    margin-top: 0.5rem;
}

.school-detail-item.highlight p {
    color: #ff6b6b;
    font-weight: bold;
    font-size: 1.1rem;
    margin: 0;
}

/* 口コミ */
.testimonials {
    background: #ffffff;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.testimonial-card {
    background: #f8f9fa;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.testimonial-card:hover {
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
    transform: translateY(-4px);
}

.testimonial-content {
    flex: 1;
    margin-bottom: 1.5rem;
}

.testimonial-text {
    color: #555;
    line-height: 1.8;
    font-size: 1rem;
    margin: 0;
}

.testimonial-author {
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    padding-top: 1.5rem;
}

.testimonial-name {
    color: #667eea;
    font-weight: 600;
    font-size: 1.1rem;
    margin: 0 0 0.3rem 0;
}

.testimonial-age {
    color: #888;
    font-size: 0.9rem;
    margin: 0;
}

/* 料金設定 */
.pricing {
    background: #f8f9fa;
}

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

.pricing-card {
    background: white;
    padding: 4rem;
    border-radius: 24px;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.1);
    margin-bottom: 2.5rem;
    display: flex;
    justify-content: space-around;
    gap: 3rem;
    flex-wrap: wrap;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.pricing-item {
    text-align: center;
    flex: 1;
    min-width: 200px;
}

.pricing-item strong {
    display: block;
    color: #333;
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: bold;
}

.pricing-item .price {
    font-size: 3rem;
    color: #667eea;
    font-weight: 700;
    margin: 0;
    letter-spacing: -1px;
}

.payment-methods {
    background: white;
    padding: 3.5rem;
    border-radius: 24px;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.1);
    text-align: center;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.payment-methods h3 {
    color: #333;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    font-weight: bold;
}

.payment-options {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.payment-option {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: bold;
    font-size: 1.1rem;
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

/* イベント */
.events {
    background: #f8f9fa;
}

.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    max-width: 1000px;
    margin: 0 auto;
}

.event-card {
    background: white;
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.event-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.event-season {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-weight: bold;
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: white;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.event-season.summer {
    background: linear-gradient(135deg, #ff9a56 0%, #ff6b6b 100%);
}

.event-season.autumn {
    background: linear-gradient(135deg, #ffa726 0%, #fb8c00 100%);
}

.event-season.winter {
    background: linear-gradient(135deg, #42a5f5 0%, #1e88e5 100%);
}

.event-title {
    font-size: 2rem;
    color: #2c3e50;
    margin: 0 0 1.5rem 0;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.event-description {
    margin-bottom: 2rem;
    text-align: left;
    padding: 0 0.5rem;
}

.event-description p {
    color: #555;
    line-height: 1.8;
    margin-bottom: 0.8rem;
    font-size: 1rem;
}

.event-description p:last-child {
    margin-bottom: 0;
}

.event-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.6rem;
    margin-top: 1.5rem;
    max-width: 100%;
}

.event-image {
    width: 100%;
    height: auto;
    border-radius: 8px;
    object-fit: cover;
    aspect-ratio: 1;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}

.event-image:hover {
    transform: scale(1.08);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.event-video {
    margin-top: 1.5rem;
    width: 100%;
    max-width: 100%;
}

.event-video-player {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    background-color: #000;
}

/* 出演情報 */
.performances {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
}

.performances .events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

/* 講師紹介 */
.instructor {
    background: #f8f9fa;
}

.instructor-content {
    max-width: 900px;
    margin: 0 auto;
}

.instructor-card {
    background: white;
    padding: 4rem;
    border-radius: 24px;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.instructor-image-container {
    width: 100%;
    max-width: 500px;
    margin: 0 auto 2.5rem;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.instructor-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

.instructor-header {
    text-align: center;
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid #f0f0f0;
}

.instructor-header h3 {
    font-size: 2rem;
    color: #667eea;
    margin-bottom: 0.5rem;
}

.instructor-age {
    font-size: 1.2rem;
    color: #666;
}

.instructor-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.instructor-detail {
    margin-bottom: 1.5rem;
}

.instructor-detail strong {
    display: block;
    color: #333;
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #e0e0e0;
}

.instructor-detail p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 0.5rem;
}

.instagram-link {
    display: inline-block;
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    margin-top: 0.5rem;
    transition: color 0.3s;
}

.instagram-link:hover {
    color: #764ba2;
}

.career-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.career-list li {
    color: #666;
    line-height: 2;
    padding-left: 1.5rem;
    position: relative;
}

.career-list li::before {
    content: "▸";
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
}

/* よくある質問 */
.faq {
    background: #f8f9fa;
}

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

.faq-item {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    margin-bottom: 1.5rem;
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.faq-item:hover {
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
    transform: translateY(-2px);
}

.faq-question {
    margin-bottom: 1.5rem;
}

.faq-question h3 {
    color: #667eea;
    font-size: 1.3rem;
    font-weight: 600;
    line-height: 1.6;
}

.faq-answer {
    color: #555;
    line-height: 1.8;
}

.faq-answer p {
    margin-bottom: 0.8rem;
}

.faq-answer p:last-child {
    margin-bottom: 0;
}

/* お問い合わせ */
.contact {
    background: #f8f9fa;
}

.contact-content {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    max-width: 800px;
    margin: 0 auto;
}

.contact-info {
    background: white;
    padding: 3.5rem;
    border-radius: 24px;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.contact-info h3 {
    color: #667eea;
    font-size: 1.5rem;
    margin-bottom: 2rem;
}

.info-item {
    margin-bottom: 2rem;
}

.info-item strong {
    display: block;
    color: #333;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.info-item p {
    color: #666;
    line-height: 1.8;
}

.info-item a {
    color: #667eea;
    text-decoration: none;
    transition: color 0.3s;
}

.info-item a:hover {
    color: #764ba2;
}

.contact-form {
    background: white;
    padding: 3.5rem;
    border-radius: 24px;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.contact-form h3 {
    color: #667eea;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.contact-form > p {
    color: #666;
    margin-bottom: 1.5rem;
}

/* フォームスタイル */
.contact-form .form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin: 0;
    padding: 0;
}

.contact-form .form-group {
    display: flex;
    flex-direction: column;
    margin: 0;
    padding: 0;
    margin-bottom: 1.5rem;
}

.contact-form .form-group:last-child {
    margin-bottom: 0;
}

.contact-form .form-group label {
    color: #333;
    font-weight: 500;
    margin-bottom: 0.5rem;
    font-size: 1rem;
    display: block;
}

.contact-form .form-group .required {
    color: #ff6b6b;
    margin-left: 0.2rem;
}

.contact-form .form-group input,
.contact-form .form-group select,
.contact-form .form-group textarea {
    padding: 0.9rem 1.2rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
    background: white;
    color: #333;
    width: 100%;
    box-sizing: border-box;
    margin: 0;
}

.contact-form .form-group input:focus,
.contact-form .form-group select:focus,
.contact-form .form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.contact-form .form-group input:hover,
.contact-form .form-group select:hover,
.contact-form .form-group textarea:hover {
    border-color: #b0b0b0;
}

.contact-form .form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form .form-group button[type="submit"] {
    width: 100%;
    margin-top: 0.5rem;
    cursor: pointer;
    border: none;
    display: inline-block;
    background: white;
    color: #667eea;
    padding: 18px 48px;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    letter-spacing: 0.5px;
}

.contact-form .form-group button[type="submit"]:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
    background: #f8f9fa;
}

/* フッター */
.footer {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: white;
    padding: 3rem 40px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-link {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.3s;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    background: rgba(255, 255, 255, 0.1);
}

.social-link:hover {
    opacity: 0.8;
    background: rgba(255, 255, 255, 0.2);
}

/* アニメーション */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* レスポンシブデザイン */
@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    section {
        padding: 60px 20px;
    }

    .hamburger {
        width: 36px;
        height: 36px;
        top: 15px;
        right: 15px;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: linear-gradient(135deg, rgba(102, 126, 234, 0.98) 0%, rgba(118, 75, 162, 0.98) 100%);
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        padding: 80px 30px 30px;
        gap: 0;
        transition: right 0.3s ease-in-out;
        box-shadow: -4px 0 20px rgba(0, 0, 0, 0.2);
        backdrop-filter: blur(10px);
        z-index: 1000;
        overflow-y: auto;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu li {
        width: 100%;
        margin: 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-menu a {
        display: block;
        padding: 1.2rem 0;
        font-size: 1.1rem;
        white-space: normal;
        width: 100%;
    }

    .nav-menu a::after {
        display: none;
    }

    .nav-menu a:hover {
        opacity: 0.8;
        padding-left: 10px;
    }

    .hero {
        padding: 120px 20px;
        min-height: 500px;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 2.2rem;
    }

    .about-intro {
        margin-bottom: 3rem;
    }

    .about-lead {
        font-size: 1.2rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .about-target {
        padding: 2rem;
    }

    .about-target-title {
        font-size: 1.2rem;
    }

    .feature {
        padding: 2rem;
    }

    .feature-icon {
        font-size: 2rem;
    }

    .contact-form {
        padding: 2rem;
    }

    .contact-form .form {
        gap: 1.2rem;
    }

    .contact-form .form-group {
        margin-bottom: 1.2rem;
    }

    .contact-form .form-group input,
    .contact-form .form-group select,
    .contact-form .form-group textarea {
        padding: 0.8rem 1rem;
        font-size: 0.95rem;
    }

    .schools-grid {
        grid-template-columns: 1fr;
    }

    .lesson-target {
        padding: 1.2rem 2rem;
    }

    .lesson-target p {
        font-size: 1.1rem;
    }

    .pricing-card {
        flex-direction: column;
        padding: 2rem;
    }

    .pricing-item .price {
        font-size: 2rem;
    }

    .pricing-item .price {
        font-size: 1.3rem;
    }

    .faq-item {
        padding: 1.8rem;
        margin-bottom: 1.2rem;
    }

    .faq-question h3 {
        font-size: 1.1rem;
    }

    .faq-answer {
        font-size: 0.95rem;
    }

    .payment-options {
        flex-direction: column;
        align-items: center;
    }

    .payment-option {
        width: 100%;
        max-width: 200px;
    }

    .events-grid {
        grid-template-columns: 1fr;
    }

    .event-card {
        padding: 2rem;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .testimonial-card {
        padding: 2rem;
    }

    .event-title {
        font-size: 1.5rem;
    }

    .event-gallery {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }

    .event-card {
        padding: 1.5rem;
    }

    .instructor-card {
        padding: 2rem;
    }

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

    .announcement-title {
        font-size: 1.8rem;
    }

    .announcement-text {
        font-size: 1rem;
    }

    .announcements-grid {
        grid-template-columns: 1fr;
    }

    .announcement-banner {
        padding: 2rem;
    }

    .announcement-details {
        grid-template-columns: 1fr;
    }

    .trial-details {
        grid-template-columns: 1fr;
    }

    .trial-title {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hamburger {
        width: 32px;
        height: 32px;
        top: 12px;
        right: 12px;
    }

    .nav-menu {
        gap: 0.3rem;
        font-size: 0.7rem;
    }

    .nav-menu a {
        padding: 0.15rem 0.3rem;
    }

    .hero {
        padding: 80px 20px;
        min-height: 400px;
    }

    .hero-title {
        font-size: 1.5rem;
    }

    .cta-button {
        padding: 12px 30px;
        font-size: 1rem;
    }

    section {
        padding: 80px 20px;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .event-gallery {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.4rem;
    }

    .event-card {
        padding: 1.2rem;
    }
}