/* 玻璃态风格 */
* {
    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: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.navbar {
    padding: 24px 0;
}

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

.nav-brand {
    font-size: 20px;
    font-weight: 600;
    color: #fff;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-menu a {
    text-decoration: none;
    color: rgba(255,255,255,0.9);
    font-size: 15px;
    transition: color 0.2s;
}

.nav-menu a:hover {
    color: #fff;
}

.hero {
    padding: 120px 0;
    text-align: center;
}

.hero-content {
    padding: 60px 40px;
    border-radius: 20px;
    max-width: 700px;
    margin: 0 auto;
}

.glass {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero h1 {
    font-size: 42px;
    font-weight: 600;
    margin-bottom: 24px;
    color: #fff;
}

.hero p {
    font-size: 18px;
    color: rgba(255,255,255,0.9);
    margin-bottom: 40px;
}

.btn {
    display: inline-block;
    padding: 14px 40px;
    background: rgba(255, 255, 255, 0.25);
    color: #fff;
    text-decoration: none;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 500;
    transition: background 0.3s, transform 0.2s;
    border: 1px solid rgba(255,255,255,0.3);
}

.btn:hover {
    background: rgba(255, 255, 255, 0.35);
    transform: translateY(-2px);
}

.services {
    padding: 80px 0;
}

.services h2 {
    text-align: center;
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 60px;
    color: #fff;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.service-card {
    padding: 40px;
    border-radius: 16px;
    text-align: center;
}

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

.service-card p {
    color: rgba(255,255,255,0.85);
}

.about {
    padding: 80px 0;
}

.about-content {
    padding: 50px;
    border-radius: 16px;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

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

.about p {
    color: rgba(255,255,255,0.9);
    font-size: 17px;
}

footer {
    padding: 40px 0;
    text-align: center;
}

footer p {
    color: rgba(255,255,255,0.8);
    font-size: 14px;
    margin-bottom: 8px;
}

footer a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
}

footer a:hover {
    color: #fff;
}

@media (max-width: 768px) {
    .nav-menu {
        gap: 16px;
    }
    
    .hero h1 {
        font-size: 30px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-content {
        padding: 40px 24px;
    }
}