/* 重置樣式與基礎設定 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #f5f5dc; /* 卡其色 */
    --secondary-color: #ffffff; /* 純白色 */
    --accent-color: #8b7355; /* 深卡其色 */
    --text-dark: #5d4e37; /* 深棕色文字 */
    --text-medium: #6b5b45; /* 中等棕色文字 */
    --text-light: #8b7355; /* 淺棕色文字 */
    --border-color: #ddd5b8; /* 邊框色 */
    --shadow-light: rgba(139, 115, 85, 0.1);
    --shadow-medium: rgba(139, 115, 85, 0.2);
    --gradient-bg: linear-gradient(135deg, #ffffff 0%, #f5f5dc 50%, #ffffff 100%);
    --line-green: #00c300; /* LINE綠色 */
}

body {
    font-family: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--gradient-bg);
    min-height: 100vh;
}

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

/* 頁首樣式 */
.header {
    background: var(--secondary-color);
    box-shadow: 0 2px 20px var(--shadow-light);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 3px solid var(--primary-color);
}

.navbar {
    padding: 15px 0;
}

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

.nav-logo h1 {
    color: var(--accent-color);
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 1px;
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    padding: 10px 15px;
    border-radius: 25px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-menu a:hover {
    background: var(--primary-color);
    color: var(--accent-color);
    transform: translateY(-2px);
}

/* 英雄區域 */
.hero-section {
    padding: 80px 0;
    background: var(--gradient-bg);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, var(--primary-color) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, var(--primary-color) 0%, transparent 50%);
    opacity: 0.3;
    z-index: -1;
}

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

.hero-text h2 {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 15px;
    line-height: 1.2;
}

.hero-text h3 {
    font-size: 2rem;
    color: var(--text-medium);
    margin-bottom: 25px;
    font-weight: 400;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-medium);
    margin-bottom: 40px;
    line-height: 1.7;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
}

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

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 5px;
}

.stat-label {
    font-size: 1rem;
    color: var(--text-medium);
    font-weight: 500;
}

.hero-cta {
    margin-top: 30px;
}

/* CTA按鈕組 */
.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.btn-primary {
    display: inline-block;
    background: linear-gradient(135deg, var(--accent-color), #6b5b45);
    color: white;
    padding: 18px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 8px 25px var(--shadow-medium);
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px var(--shadow-medium);
    background: linear-gradient(135deg, #6b5b45, var(--accent-color));
}

.btn-secondary {
    display: inline-block;
    background: var(--secondary-color);
    color: var(--accent-color);
    padding: 18px 40px;
    border: 2px solid var(--accent-color);
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-secondary:hover {
    background: var(--accent-color);
    color: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: 0 12px 35px var(--shadow-medium);
}

.countdown-text {
    margin-top: 20px;
    font-size: 1rem;
    color: var(--text-medium);
}

#countdown {
    font-weight: 700;
    color: var(--accent-color);
}

.hero-image {
    position: relative;
}

.hero-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 20px;
    box-shadow: 0 20px 60px var(--shadow-medium);
}

.floating-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, #ff6b6b, #ff5252);
    color: white;
    padding: 10px 20px;
    border-radius: 25px;
    font-weight: 600;
    font-size: 0.9rem;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* 合作夥伴區域 */
.partners-section {
    padding: 80px 0;
    background: var(--secondary-color);
    text-align: center;
}

.partners-section h3 {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 50px;
    font-weight: 600;
}

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

.partner-item {
    background: var(--primary-color);
    padding: 30px;
    border-radius: 15px;
    transition: all 0.3s ease;
    border: 2px solid var(--border-color);
}

.partner-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px var(--shadow-medium);
}

.partner-item img {
    width: 100%;
    height: 80px;
    object-fit: contain;
    margin-bottom: 20px;
    border-radius: 8px;
}

.partner-item h4 {
    font-size: 1.3rem;
    color: var(--accent-color);
    margin-bottom: 10px;
    font-weight: 600;
}

.partner-item p {
    color: var(--text-medium);
    font-size: 1rem;
}

/* 書籍區域 */
.books-section {
    padding: 100px 0;
    background: var(--gradient-bg);
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-header h2 {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 20px;
    font-weight: 700;
}

.section-header p {
    font-size: 1.3rem;
    color: var(--text-medium);
}

.books-grid {
    display: grid;
    gap: 60px;
}

.book-category {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 40px;
    align-items: center;
    background: var(--secondary-color);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 15px 50px var(--shadow-light);
    position: relative;
    overflow: hidden;
}

.book-category:nth-child(even) {
    grid-template-columns: 2fr 1fr;
}

.book-category:nth-child(even) .category-image {
    order: 2;
}

.book-category:nth-child(even) .category-content {
    order: 1;
}

.category-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 15px;
    box-shadow: 0 10px 30px var(--shadow-medium);
}

.category-content h3 {
    font-size: 2.2rem;
    color: var(--accent-color);
    margin-bottom: 20px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 15px;
}

.category-content h3 i {
    font-size: 2rem;
    color: var(--accent-color);
}

.category-content p {
    font-size: 1.2rem;
    color: var(--text-medium);
    margin-bottom: 25px;
    line-height: 1.6;
}

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

.category-features li {
    padding: 8px 0;
    font-size: 1.1rem;
    color: var(--text-dark);
    position: relative;
    padding-left: 25px;
}

.category-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

.category-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, var(--accent-color), #6b5b45);
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

/* 特色區域 */
.features-section {
    padding: 80px 0;
    background: var(--secondary-color);
}

.features-section h2 {
    text-align: center;
    font-size: 2.8rem;
    color: var(--accent-color);
    margin-bottom: 60px;
    font-weight: 700;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.feature-item {
    text-align: center;
    padding: 40px 20px;
    background: var(--primary-color);
    border-radius: 20px;
    transition: all 0.3s ease;
    border: 2px solid var(--border-color);
}

.feature-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px var(--shadow-medium);
}

.feature-icon {
    font-size: 4rem;
    margin-bottom: 25px;
    display: block;
    color: var(--accent-color);
}

.feature-icon i {
    display: block;
}

.feature-item h3 {
    font-size: 1.5rem;
    color: var(--accent-color);
    margin-bottom: 15px;
    font-weight: 600;
}

.feature-item p {
    color: var(--text-medium);
    font-size: 1.1rem;
    line-height: 1.6;
}

/* 報名表單區域 - 新的LINE客服設計 */
.register-section {
    padding: 100px 0;
    background: var(--gradient-bg);
}

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

.register-header h2 {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 20px;
    font-weight: 700;
}

.register-header p {
    font-size: 1.3rem;
    color: var(--text-medium);
    margin-bottom: 50px;
    line-height: 1.6;
}

.line-service-main {
    margin-bottom: 50px;
}

.line-service-card {
    background: var(--secondary-color);
    padding: 60px 40px;
    border-radius: 30px;
    box-shadow: 0 20px 60px var(--shadow-light);
    border: 3px solid var(--line-green);
    position: relative;
    overflow: hidden;
}

.line-service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--line-green), #00d400, var(--line-green));
}

.line-logo {
    margin-bottom: 30px;
}

.line-logo i {
    font-size: 5rem;
    color: var(--line-green);
    text-shadow: 0 4px 8px rgba(0, 195, 0, 0.3);
}

.line-service-card h3 {
    font-size: 2.2rem;
    color: var(--accent-color);
    margin-bottom: 20px;
    font-weight: 600;
}

.line-service-card p {
    font-size: 1.2rem;
    color: var(--text-medium);
    margin-bottom: 40px;
    line-height: 1.6;
}

.btn-line-main {
    display: inline-flex;
    align-items: center;
    gap: 15px;
    background: linear-gradient(135deg, var(--line-green), #00d400);
    color: white;
    padding: 20px 50px;
    border: none;
    border-radius: 50px;
    font-size: 1.3rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 195, 0, 0.3);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-line-main:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 195, 0, 0.4);
    background: linear-gradient(135deg, #00d400, var(--line-green));
}

.btn-line-main i {
    font-size: 1.5rem;
}

.service-info {
    margin-bottom: 50px;
}

.service-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.service-detail-item {
    display: flex;
    align-items: center;
    gap: 15px;
    background: var(--secondary-color);
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 8px 25px var(--shadow-light);
    border: 2px solid var(--border-color);
}

.service-detail-item i {
    font-size: 1.5rem;
    color: var(--accent-color);
    flex-shrink: 0;
}

.service-detail-item span {
    font-size: 1rem;
    color: var(--text-dark);
    font-weight: 500;
}

.register-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.register-feature {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1.1rem;
    color: var(--text-dark);
    background: var(--secondary-color);
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 5px 15px var(--shadow-light);
}

.feature-check {
    color: var(--line-green);
    font-weight: bold;
    font-size: 1.2rem;
    flex-shrink: 0;
}

/* 常見問題區域 */
.faq-section {
    padding: 80px 0;
    background: var(--secondary-color);
}

.faq-section h2 {
    text-align: center;
    font-size: 2.8rem;
    color: var(--accent-color);
    margin-bottom: 60px;
    font-weight: 700;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 30px;
}

.faq-item {
    background: var(--primary-color);
    padding: 30px;
    border-radius: 15px;
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
}

.faq-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px var(--shadow-light);
}

.faq-item h3 {
    font-size: 1.3rem;
    color: var(--accent-color);
    margin-bottom: 15px;
    font-weight: 600;
}

.faq-item p {
    color: var(--text-medium);
    font-size: 1.1rem;
    line-height: 1.6;
}

/* 頁尾樣式 */
.footer {
    background: var(--text-dark);
    color: var(--primary-color);
    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: var(--secondary-color);
    font-weight: 600;
}

.footer-section h3 {
    font-size: 1.5rem;
}

.footer-section h4 {
    font-size: 1.2rem;
}

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

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

.footer-section a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--text-medium);
    color: var(--primary-color);
}

/* 響應式設計 */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 20px;
    }
    
    .nav-menu {
        display: none;
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-text h2 {
        font-size: 2.5rem;
    }
    
    .hero-text h3 {
        font-size: 1.5rem;
    }
    
    .hero-stats {
        justify-content: center;
        gap: 30px;
    }
    
    .book-category {
        grid-template-columns: 1fr !important;
        text-align: center;
    }
    
    .book-category:nth-child(even) .category-image {
        order: 1;
    }
    
    .book-category:nth-child(even) .category-content {
        order: 2;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .register-header h2 {
        font-size: 2.2rem;
    }
    
    .line-service-card {
        padding: 40px 25px;
    }
    
    .btn-line-main {
        padding: 18px 40px;
        font-size: 1.1rem;
    }
    
    .service-details {
        grid-template-columns: 1fr;
    }
    
    .register-features {
        grid-template-columns: 1fr;
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .partners-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 30px;
    }
    
    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-section {
        padding: 60px 0;
    }
    
    .hero-text h2 {
        font-size: 2rem;
    }
    
    .section-header h2 {
        font-size: 2.2rem;
    }
    
    .btn-primary {
        padding: 15px 30px;
        font-size: 1rem;
    }
    
    .line-logo i {
        font-size: 4rem;
    }
    
    .line-service-card h3 {
        font-size: 1.8rem;
    }
}