:root {
    --primary-color: #4CAF50;
    --secondary-color: #2196F3;
    --text-color: #333;
    --light-bg: #f9f9f9;
    --dark-bg: #222;
}

body {
    font-family: 'Noto Sans TC', sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    color: var(--text-color);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* Header */
.header {
    background: #fff;
    padding: 1rem 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #333;
}

.rainbow-text {
    background: linear-gradient(to right, #ff4e50, #f9d423);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    margin: 0;
    padding: 0;
    flex-wrap: wrap;
    align-items: center;
}

.nav a {
    text-decoration: none;
    color: #555;
    font-weight: 500;
}

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, rgba(255,255,255,0.9), rgba(240,240,240,0.8)), url('https://images.unsplash.com/photo-1544367567-0f2fcb009e0b?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover;
    height: 80vh;
    min-height: 500px;
    display: flex;
    align-items: center;
    text-align: center;
    padding: 2rem 0;
}

.hero-content {
    width: 100%;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--dark-bg);
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #555;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s;
    text-align: center;
}

.btn-primary {
    background: var(--primary-color);
    color: #fff !important;
}

.btn-primary:hover {
    background: #45a049;
}

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

.btn-outline:hover {
    background: var(--primary-color);
    color: #fff;
}

.btn-light {
    background: #fff;
    color: var(--primary-color) !important;
}

/* Services */
.services {
    padding: 5rem 0;
    background: var(--light-bg);
    text-align: center;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--dark-bg);
    line-height: 1.3;
}

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

.service-card {
    background: #fff;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: transform 0.3s;
    height: 100%;
    box-sizing: border-box;
}

.service-card:hover {
    transform: translateY(-5px);
}

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

/* CTA */
.cta {
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    color: #fff;
    text-align: center;
    padding: 4rem 0;
}

/* Footer */
.footer {
    background: var(--dark-bg);
    color: #ddd;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer h3, .footer h4 {
    color: #fff;
}

.footer-bottom {
    text-align: center;
    border-top: 1px solid #444;
    padding-top: 1rem;
    font-size: 0.9rem;
}

/* Media Queries for Responsiveness */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        justify-content: center;
        text-align: center;
    }
    
    .nav ul {
        justify-content: center;
        gap: 1rem;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1rem;
        padding: 0 1rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .services, .cta, .features, .about, .products {
        padding: 3rem 0;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 1.8rem;
    }
    
    .btn {
        width: 100%;
        box-sizing: border-box;
    }
    
    .hero-buttons .btn {
        width: calc(100% - 2rem);
        margin: 0 auto;
    }
    
    .nav {
        width: 100%;
    }
    
    .nav ul {
        flex-direction: column;
        gap: 0.8rem;
        width: 100%;
    }
    
    .nav ul li {
        width: 100%;
    }
    
    .nav ul li a {
        display: block;
        padding: 0.5rem;
        background: #f5f5f5;
        border-radius: 5px;
    }
    
    .nav ul li a.btn-primary {
        background: var(--primary-color);
    }
}