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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
}

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

header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: 15px 0;
}

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

.logo h1 {
    font-size: 24px;
    color: #0066cc;
    margin-bottom: 0;
}

.logo span {
    font-size: 12px;
    color: #666;
    letter-spacing: 2px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: #0066cc;
}

.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 200px 0 100px;
    text-align: center;
}

.hero-content h1 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: 700;
}

.subtitle {
    font-size: 24px;
    margin-bottom: 15px;
    opacity: 0.9;
}

.description {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.8;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.btn-primary {
    display: inline-block;
    background: #fff;
    color: #667eea;
    padding: 15px 40px;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: #333;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: #0066cc;
    margin: 15px auto 0;
}

.about {
    background: #f9f9f9;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 16px;
    line-height: 1.8;
    color: #555;
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.stat-item h3 {
    font-size: 32px;
    color: #0066cc;
    margin-bottom: 5px;
}

.stat-item p {
    font-size: 14px;
    color: #666;
}

.about-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.services {
    background: #fff;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background: #f9f9f9;
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.service-icon {
    margin-bottom: 20px;
    color: #0066cc;
}

.service-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: #333;
}

.service-card p {
    color: #666;
    line-height: 1.8;
}

.partners {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

.partners-intro {
    text-align: center;
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.9;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.partner-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 30px 20px;
    border-radius: 10px;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: transform 0.3s;
}

.partner-item:hover {
    transform: scale(1.05);
    background: rgba(255, 255, 255, 0.2);
}

.partner-item h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.partner-item p {
    font-size: 14px;
    opacity: 0.8;
}

.contact {
    background: #f9f9f9;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.contact-info {
    display: grid;
    gap: 25px;
}

.contact-item h3 {
    font-size: 18px;
    color: #0066cc;
    margin-bottom: 8px;
}

.contact-item p {
    font-size: 16px;
    color: #555;
}

.contact-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

footer {
    background: #333;
    color: #fff;
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #0066cc;
}

.footer-section p {
    font-size: 14px;
    line-height: 1.8;
    opacity: 0.8;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    font-size: 13px;
    opacity: 0.6;
}

@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 32px;
    }

    .subtitle {
        font-size: 18px;
    }

    .description {
        font-size: 16px;
    }

    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }

    .nav-menu {
        display: none;
    }

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

    section {
        padding: 50px 0;
    }
}