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

:root {
    --primary-blue: #0077BE;
    --light-blue: #4DA6D6;
    --dark-blue: #005A8C;
    --water-blue: #E6F4FA;
    --accent-cyan: #00B4D8;
    --text-dark: #1A1A1A;
    --text-gray: #666666;
    --text-light: #999999;
    --white: #FFFFFF;
    --bg-light: #F8FBFD;
    --border-color: #E0E0E0;
    --success-green: #28A745;
    --error-red: #DC3545;
    --shadow-sm: 0 2px 8px rgba(0, 119, 190, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 119, 190, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 119, 190, 0.2);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft JhengHei', 'PingFang TC', 'Noto Sans TC', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
}

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

.section {
    padding: 80px 0;
}

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

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--accent-cyan));
    margin: 15px auto 0;
    border-radius: 2px;
}

.subsection-title {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 30px;
    color: var(--dark-blue);
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    text-align: center;
}

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

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

.navbar {
    position: sticky;
    top: 0;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    padding: 10px 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand img {
    height: 60px;
    width: auto;
    display: block;
}

.nav-brand h1 {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-menu a {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-blue);
    transition: width 0.3s ease;
}

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

.language-switcher select {
    padding: 8px 12px;
    border: 2px solid var(--border-color);
    border-radius: 20px;
    background: var(--white);
    color: var(--text-dark);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.language-switcher select:hover {
    border-color: var(--primary-blue);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-blue);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.hero {
    position: relative;
    height: 90vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 119, 190, 0.7), rgba(0, 180, 216, 0.6));
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: var(--white);
    max-width: 800px;
    padding: 0 20px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 20px;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
    letter-spacing: 2px;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 40px;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.3);
}

.overview {
    background: var(--bg-light);
}

.overview-intro {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 50px;
}

.overview-intro p {
    font-size: 1.2rem;
    line-height: 1.8;
    color: var(--text-gray);
    margin-bottom: 15px;
}

.overview-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.feature-card {
    background: var(--white);
    padding: 35px 25px;
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.3rem;
    color: var(--primary-blue);
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-gray);
    line-height: 1.6;
}

.lessons {
    background: var(--white);
}

.lesson-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.lesson-type-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.lesson-type-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.lesson-type-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.lesson-type-content {
    padding: 30px;
}

.lesson-type-content h3 {
    font-size: 1.5rem;
    color: var(--primary-blue);
    margin-bottom: 12px;
}

.lesson-type-content p {
    color: var(--text-gray);
}

.lesson-programs {
    background: var(--water-blue);
    padding: 40px;
    border-radius: 16px;
    text-align: center;
    margin-bottom: 60px;
}

.program-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin: 25px 0;
}

.tag {
    display: inline-block;
    padding: 10px 24px;
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-cyan));
    color: var(--white);
    border-radius: 25px;
    font-weight: 600;
    font-size: 0.95rem;
}

.programs-desc {
    color: var(--text-gray);
    font-size: 1.1rem;
}

.teaching-method {
    margin-bottom: 60px;
}

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

.method-item {
    background: var(--bg-light);
    padding: 30px;
    border-radius: 12px;
    border-left: 4px solid var(--primary-blue);
}

.method-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--light-blue);
    margin-bottom: 15px;
}

.method-item h4 {
    font-size: 1.2rem;
    color: var(--dark-blue);
    margin-bottom: 10px;
}

.method-item p {
    color: var(--text-gray);
    line-height: 1.7;
}

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

.stage-card {
    background: var(--white);
    padding: 30px;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.stage-card:hover {
    box-shadow: var(--shadow-md);
}

.stage-badge {
    display: inline-block;
    padding: 8px 20px;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.stage-card h4 {
    font-size: 1.3rem;
    color: var(--dark-blue);
    margin-bottom: 15px;
}

.stage-card ul {
    list-style: none;
}

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

.stage-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-cyan);
    font-weight: 700;
}

.locations {
    background: var(--bg-light);
}

.locations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.location-card {
    background: var(--white);
    padding: 35px 25px;
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.location-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.location-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.location-card h3 {
    font-size: 1.3rem;
    color: var(--primary-blue);
    margin-bottom: 10px;
}

.location-area {
    color: var(--text-gray);
    font-weight: 600;
    margin-bottom: 8px;
}

.location-transport {
    color: var(--text-light);
    font-size: 0.95rem;
}

.locations-note {
    text-align: center;
    color: var(--text-light);
    font-style: italic;
    font-size: 0.95rem;
}

.about {
    background: var(--white);
}

.about-hero {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 60px;
    box-shadow: var(--shadow-md);
}

.about-hero img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.about-hero-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    padding: 40px;
    color: var(--white);
}

.about-slogan {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 15px;
    letter-spacing: 2px;
}

.about-mission {
    font-size: 1.2rem;
    line-height: 1.8;
}

.about-philosophy {
    margin-bottom: 60px;
}

.philosophy-content p {
    font-size: 1.15rem;
    line-height: 1.9;
    color: var(--text-gray);
    margin-bottom: 15px;
    text-align: center;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.difference-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}

.difference-item {
    background: var(--bg-light);
    padding: 30px;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.difference-item:hover {
    background: var(--water-blue);
}

.difference-icon {
    font-size: 2.5rem;
    color: var(--accent-cyan);
    margin-bottom: 15px;
}

.difference-item h4 {
    font-size: 1.2rem;
    color: var(--dark-blue);
    margin-bottom: 10px;
}

.difference-item p {
    color: var(--text-gray);
    line-height: 1.7;
}

.faq {
    background: var(--bg-light);
}

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

.faq-item {
    background: var(--white);
    border-radius: 12px;
    margin-bottom: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    padding: 25px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: var(--water-blue);
}

.faq-question h3 {
    font-size: 1.15rem;
    color: var(--dark-blue);
    margin: 0;
    flex: 1;
}

.faq-toggle {
    font-size: 1.8rem;
    color: var(--primary-blue);
    font-weight: 300;
    transition: transform 0.3s ease;
    margin-left: 20px;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 30px 25px;
    color: var(--text-gray);
    line-height: 1.8;
}

.contact {
    background: var(--white);
}

.contact-info-center {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    max-width: 900px;
    margin: 0 auto 50px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 30px;
    background: var(--bg-light);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.contact-icon {
    font-size: 2.5rem;
}

.contact-item h4 {
    font-size: 1rem;
    color: var(--dark-blue);
    margin-bottom: 5px;
    font-weight: 600;
}

.contact-item p {
    color: var(--text-gray);
    font-size: 1.05rem;
}

.contact-cta {
    text-align: center;
    margin-top: 40px;
}

.contact-cta .btn {
    font-size: 1.2rem;
    padding: 16px 48px;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
}

.contact-info h3 {
    font-size: 1.5rem;
    color: var(--primary-blue);
    margin-bottom: 30px;
}

.contact-form {
    background: var(--bg-light);
    padding: 40px;
    border-radius: 16px;
}

.form-group {
    margin-bottom: 25px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-dark);
    font-weight: 600;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

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

.form-group textarea {
    resize: vertical;
}

.recaptcha-placeholder {
    background: var(--white);
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    padding: 30px;
    text-align: center;
}

.recaptcha-note {
    color: var(--text-light);
    font-style: italic;
}

.btn-submit {
    width: 100%;
    font-size: 1.1rem;
    padding: 16px;
    margin-top: 10px;
}

.form-message {
    margin-top: 20px;
    padding: 15px 20px;
    border-radius: 8px;
    display: none;
    font-weight: 600;
}

.form-message.success {
    display: block;
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-message.error {
    display: block;
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.footer {
    background: var(--dark-blue);
    color: var(--white);
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 30px;
}

.footer-brand h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.8);
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
}

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

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

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-contact p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 8px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.6);
}

@media (max-width: 968px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-md);
    }

    .nav-menu.active {
        display: flex;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

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

    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 640px) {
    .section {
        padding: 50px 0;
    }

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

    .hero-subtitle {
        font-size: 1rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .overview-features,
    .lesson-types,
    .method-grid,
    .stages-timeline,
    .locations-grid,
    .difference-grid {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: 25px;
    }
}