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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

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

.header {
    background: #fff;
    border-bottom: 1px solid #eee;
    padding: 20px 0;
}

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

.logo {
    font-size: 24px;
    font-weight: 700;
    color: #222;
}

.nav a {
    text-decoration: none;
    color: #666;
    margin-left: 30px;
    font-size: 15px;
    transition: color 0.3s;
}

.nav a:hover,
.nav a.active {
    color: #222;
}

.hero {
    background: linear-gradient(135deg, #f8f9fa 0%, #fff 100%);
    padding: 80px 0;
    text-align: center;
}

.hero h1 {
    font-size: 56px;
    font-weight: 700;
    color: #222;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.hero .subtitle {
    font-size: 20px;
    color: #666;
    font-weight: 400;
}

.page-hero {
    background: linear-gradient(135deg, #f8f9fa 0%, #fff 100%);
    padding: 60px 0;
    text-align: center;
}

.page-hero h1 {
    font-size: 42px;
    font-weight: 700;
    color: #222;
}

.intro {
    padding: 80px 0;
    text-align: center;
}

.intro h2 {
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 24px;
    color: #222;
}

.intro p {
    font-size: 17px;
    color: #666;
    max-width: 700px;
    margin: 0 auto 16px;
    line-height: 1.8;
}

.features {
    padding: 60px 0 80px;
    background: #fafafa;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.feature-card {
    text-align: center;
    padding: 30px 20px;
    background: #fff;
    border-radius: 8px;
    transition: box-shadow 0.3s;
}

.feature-card:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #222;
}

.feature-card p {
    font-size: 15px;
    color: #666;
    line-height: 1.7;
}

.about-content {
    padding: 80px 0;
}

.about-text {
    max-width: 800px;
    margin: 0 auto;
}

.about-text h2 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 24px;
    color: #222;
}

.about-text p {
    font-size: 16px;
    color: #666;
    margin-bottom: 20px;
    line-height: 1.8;
}

.footer {
    background: #222;
    color: #fff;
    padding: 40px 0;
    text-align: center;
}

.footer p {
    font-size: 15px;
    margin-bottom: 8px;
}

.footer .contact-info {
    color: #999;
    font-size: 14px;
}

.footer .copyright {
    color: #666;
    font-size: 13px;
    margin-top: 16px;
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 36px;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .header .container {
        flex-direction: column;
        gap: 16px;
    }
    
    .nav a {
        margin: 0 15px;
    }
}