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

:root {
    --primary-color: #00ff88;
    --secondary-color: #00cc6a;
    --dark-bg: #0a0e1a;
    --darker-bg: #050810;
    --card-bg: #131720;
    --text-primary: #ffffff;
    --text-secondary: #b0b8c4;
    --accent-purple: #8b5cf6;
    --accent-blue: #3b82f6;
}

body {
    font-family: 'Noto Sans TC', sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(0, 255, 136, 0.1);
}

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

.nav-brand h1 {
    font-size: 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: all 0.3s;
}

/* Hero Section */
.hero {
    margin-top: 80px;
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--darker-bg) 0%, var(--dark-bg) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 255, 136, 0.1) 0%, transparent 70%);
    animation: pulse 15s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

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

.hero-title {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--darker-bg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 255, 136, 0.3);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--darker-bg);
}

.btn-plan {
    width: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--darker-bg);
    text-align: center;
    margin-top: auto;
}

.btn-plan:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 255, 136, 0.3);
}

.btn-contact {
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    color: var(--text-primary);
}

.btn-contact:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(139, 92, 246, 0.3);
}

/* Section Styles */
section {
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

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

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

/* Features Section */
.features {
    background: var(--darker-bg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid rgba(0, 255, 136, 0.1);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 255, 136, 0.2);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

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

/* Pricing Section */
.pricing {
    background: var(--dark-bg);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.pricing-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s, box-shadow 0.3s;
    border: 2px solid rgba(0, 255, 136, 0.1);
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 255, 136, 0.2);
    border-color: var(--primary-color);
}

.pricing-card.featured {
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(0, 255, 136, 0.3);
}

.plan-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--darker-bg);
    padding: 0.25rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 700;
}

.plan-header {
    text-align: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(0, 255, 136, 0.2);
}

.plan-header h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.price span {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.plan-features {
    list-style: none;
    flex-grow: 1;
    margin-bottom: 1.5rem;
}

.plan-features li {
    padding: 0.75rem 0;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.plan-features li:last-child {
    border-bottom: none;
}

.plan-features li.recommendation {
    color: var(--primary-color);
    font-weight: 500;
    margin-top: 0.5rem;
}

.pricing-note {
    margin-top: 4rem;
    text-align: center;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid rgba(0, 255, 136, 0.2);
}

.note-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.pricing-note p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.disclaimer {
    font-size: 0.875rem;
    color: var(--text-secondary);
    opacity: 0.7;
    margin-top: 1rem;
}

/* Contact Section */
.contact {
    background: var(--darker-bg);
}

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

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.contact-card {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 12px;
    text-align: center;
    border: 1px solid rgba(139, 92, 246, 0.2);
    transition: transform 0.3s, box-shadow 0.3s;
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(139, 92, 246, 0.3);
    border-color: var(--accent-purple);
}

.contact-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.contact-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.contact-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.contact-message {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.1), rgba(59, 130, 246, 0.1));
    border-radius: 12px;
    border: 1px solid rgba(0, 255, 136, 0.2);
}

.cta-text {
    font-size: 1.3rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* Footer */
.footer {
    background: var(--darker-bg);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid rgba(0, 255, 136, 0.1);
}

.footer p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--dark-bg);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

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

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

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

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

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

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

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

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

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

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

    .contact-info {
        grid-template-columns: 1fr;
    }
}

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

.feature-card,
.pricing-card,
.contact-card {
    animation: fadeInUp 0.6s ease-out;
}