/* 重置和基礎樣式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans TC', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* 導航欄 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo {
    width: 40px;
    height: 40px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2c3e50;
}

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

.nav-link {
    text-decoration: none;
    color: #2c3e50;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #3498db;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #3498db;
    transition: width 0.3s ease;
}

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

.contact-btn {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white !important;
    padding: 10px 20px;
    border-radius: 25px;
    transition: transform 0.3s ease;
}

.contact-btn:hover {
    transform: translateY(-2px);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: #2c3e50;
    margin: 3px 0;
    transition: 0.3s;
}

/* 英雄區塊 */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    color: white;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.highlight {
    background: linear-gradient(45deg, #f39c12, #e74c3c);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
    line-height: 1.6;
}

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

.btn {
    display: inline-block;
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, #f39c12, #e74c3c);
    color: white;
    box-shadow: 0 10px 30px rgba(243, 156, 18, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(243, 156, 18, 0.4);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: #667eea;
    transform: translateY(-3px);
}

.btn-outline {
    background: transparent;
    color: #3498db;
    border: 2px solid #3498db;
}

.btn-outline:hover {
    background: #3498db;
    color: white;
    transform: translateY(-2px);
}

.btn-small {
    padding: 8px 16px;
    font-size: 0.9rem;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-logo-img {
    width: 300px;
    height: 300px;
    object-fit: cover;
    border-radius: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.12);
    background: rgba(255,255,255,0.1);
    animation: float 6s ease-in-out infinite;
    display: block;
    margin: 0 auto;
}

.chess-board-animation {
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    display: flex;
    justify-content: center;
    align-items: center;
    animation: float 6s ease-in-out infinite;
}

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

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 50px;
    margin-top: 50px;
    position: relative;
    z-index: 2;
}

.stat-item {
    text-align: center;
    color: white;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #f39c12;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

/* 老師介紹 */
.teacher {
    padding: 100px 0;
    background: white;
}

.teacher-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    align-items: start;
}

.teacher-image {
    text-align: center;
}

.teacher-image img {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border: 5px solid #3498db;
}

.teacher-info h3 {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 10px;
}

.teacher-title {
    font-size: 1.2rem;
    color: #3498db;
    font-weight: 500;
    margin-bottom: 30px;
}

.teacher-experience,
.teacher-achievements,
.teacher-philosophy {
    margin-bottom: 30px;
}

.teacher-info h4 {
    font-size: 1.3rem;
    color: #2c3e50;
    margin-bottom: 15px;
    border-left: 4px solid #3498db;
    padding-left: 15px;
}

.teacher-info ul {
    list-style: none;
    margin-bottom: 20px;
}

.teacher-info ul li {
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
    color: #666;
    line-height: 1.6;
}

.teacher-info ul li::before {
    content: '•';
    color: #3498db;
    font-weight: bold;
    position: absolute;
    left: 0;
}

.teacher-info ul li strong {
    color: #2c3e50;
}

.teacher-philosophy p {
    font-style: italic;
    color: #666;
    line-height: 1.8;
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    border-left: 4px solid #f39c12;
}

/* 特色介紹 */
.features {
    padding: 100px 0;
    background: #f8f9fa;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
    color: #2c3e50;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #3498db, #2980b9);
    border-radius: 2px;
}

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

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #3498db, #2980b9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #2c3e50;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

/* 課程介紹 */
.courses {
    padding: 100px 0;
    background: white;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.course-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.course-card:hover {
    transform: translateY(-10px);
}

.course-image {
    height: 200px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
}

.course-content {
    padding: 30px;
}

.course-content h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: #2c3e50;
}

.course-content p {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.6;
}

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

.course-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    color: #666;
}

.course-features i {
    color: #27ae60;
    font-size: 0.9rem;
}

.course-details {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 10px;
    margin: 15px 0;
    border-left: 4px solid #3498db;
}

.course-details p {
    margin: 5px 0;
    font-size: 0.9rem;
    color: #666;
}

.course-details strong {
    color: #2c3e50;
}

/* 課程等級標籤 */
.course-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.course-level {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    color: white;
}

.level-beginner {
    background: linear-gradient(135deg, #27ae60, #2ecc71);
}

.level-intermediate {
    background: linear-gradient(135deg, #f39c12, #e67e22);
}

.level-advanced {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
}

/* 載入動畫 */
.loading-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: #666;
}

.loading-spinner i {
    font-size: 2rem;
    margin-bottom: 15px;
    color: #3498db;
}

.loading-spinner p {
    font-size: 1rem;
    color: #666;
}

/* 教室資訊 */
.locations {
    padding: 100px 0;
    background: #f8f9fa;
}

.locations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
}

.location-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.location-card:hover {
    transform: translateY(-10px);
}

.location-image {
    height: 200px;
    background: linear-gradient(135deg, #f39c12, #e74c3c);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
}

.location-content {
    padding: 30px;
}

.location-content h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: #2c3e50;
}

.location-content p {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    color: #666;
}

.location-content i {
    color: #3498db;
    width: 20px;
}

/* 活動花絮 */
.gallery {
    padding: 100px 0;
    background: white;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.gallery-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    height: 250px;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: 30px 20px 20px;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

.gallery-overlay h4 {
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.gallery-overlay p {
    opacity: 0.9;
    font-size: 0.9rem;
}

/* 聯絡我們 */
.contact {
    padding: 100px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.contact-info p {
    font-size: 1.1rem;
    margin-bottom: 40px;
    opacity: 0.9;
    line-height: 1.6;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.contact-item i {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.contact-item h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.contact-item p {
    opacity: 0.9;
    margin: 0;
}

.contact-form {
    background: rgba(255, 255, 255, 0.1);
    padding: 40px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    background: white;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* 頁腳 */
.footer {
    background: #2c3e50;
    color: white;
    padding: 60px 0 20px;
}

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

.footer-section h3,
.footer-section h4 {
    margin-bottom: 20px;
    color: #3498db;
}

.footer-section p {
    margin-bottom: 10px;
    opacity: 0.8;
    line-height: 1.6;
}

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

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

.footer-section ul li a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-section ul li a:hover {
    opacity: 1;
    color: #3498db;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    background: #3498db;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.social-links a:hover {
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.8;
}

/* 響應式設計 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 20px 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: 30px;
    }
    
    .teacher-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .teacher-image img {
        width: 250px;
        height: 250px;
    }
    
    .teacher-info h3 {
        font-size: 2rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .features-grid,
    .courses-grid,
    .locations-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        justify-content: center;
    }
}

/* 動畫效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-card,
.course-card,
.location-card {
    animation: fadeInUp 0.6s ease forwards;
}

/* 滾動效果 */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}