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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

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

/* Header */
.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo h1 {
    font-size: 32px;
    margin-bottom: 5px;
    font-weight: 700;
}

.logo .subtitle {
    font-size: 14px;
    opacity: 0.9;
}

.nav {
    display: flex;
    gap: 30px;
}

.nav a {
    color: white;
    text-decoration: none;
    font-size: 16px;
    transition: opacity 0.3s;
    padding: 5px 10px;
}

.nav a:hover {
    opacity: 0.8;
    text-decoration: underline;
}

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

.hero h2 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero-text {
    font-size: 24px;
    opacity: 0.95;
}

/* About Section */
.about {
    padding: 80px 0;
    background: white;
}

.about h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: #333;
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.company-info h3 {
    font-size: 24px;
    margin: 30px 0 15px 0;
    color: #667eea;
    border-left: 4px solid #667eea;
    padding-left: 15px;
}

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

.info-list {
    list-style: none;
    padding: 0;
}

.info-list li {
    padding: 12px 0;
    border-bottom: 1px solid #eee;
    font-size: 16px;
    color: #555;
}

.info-list li:last-child {
    border-bottom: none;
}

.info-list strong {
    color: #333;
    min-width: 120px;
    display: inline-block;
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background: #f9f9f9;
}

.contact h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: #333;
}

.contact-content {
    max-width: 900px;
    margin: 0 auto;
}

.contact-info h3 {
    font-size: 24px;
    margin-bottom: 25px;
    color: #667eea;
    border-left: 4px solid #667eea;
    padding-left: 15px;
}

.contact-list {
    list-style: none;
    padding: 0;
    background: white;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.contact-list li {
    padding: 15px 0;
    font-size: 16px;
    color: #555;
    border-bottom: 1px solid #eee;
}

.contact-list li:last-child {
    border-bottom: none;
}

.contact-list strong {
    color: #333;
    min-width: 120px;
    display: inline-block;
}

/* Footer */
.footer {
    background: #2c3e50;
    color: white;
    padding: 30px 0;
    text-align: center;
}

.footer p {
    margin: 10px 0;
    font-size: 14px;
}

.footer .icp {
    font-size: 14px;
    color: #ecf0f1;
}

.footer .icp #icp-number {
    color: #3498db;
}

.footer .domain {
    font-size: 12px;
    color: #95a5a6;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 20px;
    }

    .nav {
        gap: 15px;
    }

    .hero h2 {
        font-size: 32px;
    }

    .hero-text {
        font-size: 18px;
    }

    .about h2,
    .contact h2 {
        font-size: 28px;
    }

    .info-list strong,
    .contact-list strong {
        min-width: 100px;
        display: block;
        margin-bottom: 5px;
    }
}