/* ===== 全局樣式 ===== */
:root {
    --primary-color: #8B4513;
    --secondary-color: #DAA520;
    --accent-color: #FF6B6B;
    --dark-bg: #1a1a2e;
    --card-bg: #16213e;
    --text-primary: #ffffff;
    --text-secondary: #b8b8b8;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: 'Noto Sans TC', sans-serif;
    background: linear-gradient(to bottom, #0f0c29, #302b63, #24243e);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

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

/* ===== 導航欄 ===== */
.navbar {
    background: rgba(22, 33, 62, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

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

.nav-brand {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: 'Noto Serif TC', serif;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--secondary-color);
}

.nav-brand i {
    font-size: 1.8rem;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 8px;
}

.nav-links a:hover,
.nav-links a.active {
    background: var(--gradient-1);
    transform: translateY(-2px);
}

/* ===== 英雄區塊 ===== */
.hero {
    position: relative;
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 4rem 0;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, rgba(102, 126, 234, 0.2) 0%, transparent 70%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.05); }
}

.hero-content {
    text-align: center;
    z-index: 1;
    position: relative;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    font-family: 'Noto Serif TC', serif;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.gradient-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.4rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== 按鈕樣式 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(102, 126, 234, 0.6);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid var(--secondary-color);
}

.btn-secondary:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
}

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

.btn-outline:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
}

.btn-large {
    padding: 1.2rem 2.5rem;
    font-size: 1.1rem;
}

/* ===== 區塊標題 ===== */
.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-family: 'Noto Serif TC', serif;
    margin-bottom: 1rem;
}

.divider {
    width: 100px;
    height: 4px;
    background: var(--gradient-1);
    margin: 0 auto;
    border-radius: 2px;
}

/* ===== 關於區塊 ===== */
.about-section {
    padding: 5rem 0;
    background: rgba(22, 33, 62, 0.3);
}

.about-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

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

.teacher-info {
    display: flex;
    align-items: baseline;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.teacher-info h3 {
    font-size: 2rem;
    font-family: 'Noto Serif TC', serif;
    color: var(--secondary-color);
}

.birth-date {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.belief {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.2), rgba(118, 75, 162, 0.2));
    border-left: 4px solid var(--secondary-color);
    padding: 1.5rem;
    border-radius: 10px;
    font-style: italic;
    color: var(--text-primary);
}

.belief strong {
    color: var(--secondary-color);
    font-size: 1.1rem;
}

/* ===== 專業領域 ===== */
.expertise {
    margin-bottom: 3rem;
}

.expertise h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
    font-family: 'Noto Serif TC', serif;
}

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

.expertise-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0.8rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.expertise-item:hover {
    background: rgba(218, 165, 32, 0.2);
    transform: translateX(10px);
}

.expertise-item i {
    color: var(--secondary-color);
    font-size: 1.2rem;
}

/* ===== 靈性旅程 ===== */
.spiritual-journey h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
    font-family: 'Noto Serif TC', serif;
}

.spiritual-journey p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.highlight {
    color: var(--secondary-color);
    font-size: 1.2rem;
}

/* ===== CTA Box ===== */
.cta-box {
    margin-top: 3rem;
    background: var(--gradient-1);
    padding: 3rem;
    border-radius: 20px;
    text-align: center;
}

.cta-box h3 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.cta-box p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

/* ===== 流程步驟 ===== */
.how-it-works {
    padding: 5rem 0;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.step-card {
    position: relative;
    background: var(--card-bg);
    padding: 2.5rem 2rem;
    border-radius: 20px;
    text-align: center;
    border: 2px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.step-card:hover {
    transform: translateY(-10px);
    border-color: var(--secondary-color);
    box-shadow: 0 15px 40px rgba(218, 165, 32, 0.3);
}

.step-number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 50px;
    background: var(--gradient-1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.step-icon {
    font-size: 3rem;
    color: var(--secondary-color);
    margin: 1rem 0;
}

.step-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    font-family: 'Noto Serif TC', serif;
}

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

/* ===== 特色功能 ===== */
.features {
    padding: 5rem 0;
    background: rgba(22, 33, 62, 0.3);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.4);
}

.feature-card i {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-family: 'Noto Serif TC', serif;
}

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

/* ===== CTA Section ===== */
.cta-section {
    padding: 5rem 0;
    text-align: center;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-family: 'Noto Serif TC', serif;
}

.cta-section p {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== 頁尾 ===== */
.footer {
    background: var(--card-bg);
    padding: 3rem 0 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer h4 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    font-family: 'Noto Serif TC', serif;
}

.footer p, .footer a {
    color: var(--text-secondary);
    line-height: 1.8;
}

.footer-links {
    display: flex;
    flex-direction: column;
}

.footer-links a {
    text-decoration: none;
    transition: color 0.3s ease;
    margin-bottom: 0.5rem;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
}

/* ===== 響應式設計 ===== */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .nav-links {
        gap: 1rem;
    }
    
    .nav-links a {
        padding: 0.4rem 0.8rem;
        font-size: 0.9rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .about-card {
        padding: 2rem;
    }
    
    .steps-grid,
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-large {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .nav-brand {
        font-size: 1.2rem;
    }
    
    .nav-links {
        gap: 0.5rem;
    }
    
    .teacher-info {
        flex-direction: column;
        gap: 0.5rem;
    }
}