/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}

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

/* 头部导航 */
header {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
}

.logo h1 {
    font-size: 24px;
    color: #2c3e50;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    text-decoration: none;
    color: #34495e;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #3498db;
}

/* 主页横幅 */
.hero {
    background: linear-gradient(135deg, #3498db, #2c3e50);
    color: white;
    padding: 120px 0;
    text-align: center;
}

.hero-content h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 18px;
    margin-bottom: 30px;
}

.btn {
    display: inline-block;
    background-color: #e74c3c;
    color: white;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 500;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #c0392b;
}

/* 关于我们 */
.about {
    padding: 80px 0;
    background-color: #f9f9f9;
}

.about h2 {
    text-align: center;
    margin-bottom: 40px;
    color: #2c3e50;
}

.about-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
}

.about-text {
    flex: 1;
}

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

.about-image {
    flex: 1;
}

.about-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

/* 业务范围 */
.services {
    padding: 80px 0;
    background-color: #fff;
}

.services h2 {
    text-align: center;
    margin-bottom: 40px;
    color: #2c3e50;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-item {
    background-color: #f8f9fa;
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.service-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.service-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.service-item h3 {
    margin-bottom: 15px;
    color: #2c3e50;
}

/* 团队介绍 */
.team {
    padding: 80px 0;
    background-color: #f9f9f9;
}

.team h2 {
    text-align: center;
    margin-bottom: 40px;
    color: #2c3e50;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.team-member {
    text-align: center;
}

.team-member img {
    width: 100%;
    max-width: 200px;
    height: auto;
    border-radius: 50%;
    margin-bottom: 20px;
    border: 5px solid #fff;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.team-member h3 {
    margin-bottom: 5px;
    color: #2c3e50;
}

.team-member p {
    color: #7f8c8d;
}

/* 联系我们 */
.contact {
    padding: 80px 0;
    background-color: #fff;
}

.contact h2 {
    text-align: center;
    margin-bottom: 40px;
    color: #2c3e50;
}

.contact-content {
    display: flex;
    justify-content: space-between;
    gap: 40px;
}

.contact-info, .contact-form {
    flex: 1;
}

.contact-info h3, .contact-form h3 {
    margin-bottom: 20px;
    color: #2c3e50;
}

.contact-info p {
    margin-bottom: 15px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
}

.form-group textarea {
    resize: vertical;
}

/* 页脚 */
footer {
    background-color: #2c3e50;
    color: white;
    padding: 40px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-info, .footer-links, .footer-social {
    flex: 1;
    min-width: 200px;
}

.footer-info h3, .footer-links h4, .footer-social h4 {
    margin-bottom: 20px;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: white;
}

.social-icons a {
    display: inline-block;
    margin-right: 15px;
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s;
}

.social-icons a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #34495e;
}

/* 响应式设计 */
@media (max-width: 768px) {
    nav {
        flex-direction: column;
    }
    
    .nav-links {
        margin-top: 20px;
    }
    
    .nav-links li {
        margin-left: 15px;
        margin-right: 15px;
    }
    
    .about-content, .contact-content {
        flex-direction: column;
    }
    
    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}