/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 基础样式 */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

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

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 24px;
    background-color: #3498db;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 16px;
}

.btn:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

/* 标题样式 */
.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 36px;
    margin-bottom: 10px;
    color: #2c3e50;
}

.section-title p {
    font-size: 18px;
    color: #7f8c8d;
}

/* 导航栏样式 */
.navbar {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

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

.logo h1 {
    font-size: 24px;
    color: #3498db;
    font-weight: 700;
}

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

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

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

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

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 3px 0;
    transition: all 0.3s ease;
}

/* 英雄区样式 */
.hero {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: #fff;
    padding: 150px 0 100px;
    text-align: center;
}

.hero-content h2 {
    font-size: 48px;
    margin-bottom: 10px;
    font-weight: 700;
}

.hero-content .slogan {
    font-size: 28px;
    margin-bottom: 20px;
    opacity: 1;
    font-weight: 600;
    color: #fff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-content p:not(.slogan) {
    font-size: 24px;
    margin-bottom: 40px;
    opacity: 0.9;
}

/* 关于我们样式 */
.about {
    padding: 100px 0;
    background-color: #fff;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #2c3e50;
}

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

.about-text ul {
    list-style: none;
    margin-top: 30px;
}

.about-text li {
    margin-bottom: 15px;
    color: #555;
    display: flex;
    align-items: center;
}

.about-text li i {
    color: #3498db;
    margin-right: 10px;
    font-size: 18px;
}

.about-image {
    text-align: center;
}

.image-placeholder {
    width: 100%;
    height: 300px;
    background-color: #ecf0f1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.image-placeholder i {
    font-size: 60px;
    color: #3498db;
    margin-bottom: 15px;
}

.image-placeholder p {
    color: #7f8c8d;
    font-size: 18px;
}

.tech-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.tech-image:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.2);
}

/* 业务范围样式 */
.services {
    padding: 100px 0;
    background-color: #f8f9fa;
}

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

.service-card {
    background-color: #fff;
    padding: 40px 30px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.service-card i {
    font-size: 48px;
    color: #3498db;
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #2c3e50;
}

.service-card p {
    color: #7f8c8d;
    line-height: 1.7;
}

/* 团队介绍样式 */
.team {
    padding: 100px 0;
    background-color: #fff;
}

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

.team-card {
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.3s ease;
}

.team-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.team-image {
    margin-bottom: 20px;
}

.team-image .image-placeholder {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin: 0 auto;
    overflow: hidden;
}

.team-image i {
    font-size: 50px;
}

.team-card h3 {
    font-size: 20px;
    margin-bottom: 5px;
    color: #2c3e50;
}

.team-card p:nth-of-type(1) {
    color: #3498db;
    font-weight: 500;
    margin-bottom: 15px;
}

.team-card p:nth-of-type(2) {
    color: #7f8c8d;
    line-height: 1.7;
}

/* 联系我们样式 */
.contact {
    padding: 100px 0;
    background-color: #f8f9fa;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info {
    background-color: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 30px;
}

.contact-item i {
    color: #3498db;
    font-size: 24px;
    margin-right: 20px;
    margin-top: 5px;
}

.contact-item h3 {
    font-size: 18px;
    margin-bottom: 5px;
    color: #2c3e50;
}

.contact-item p {
    color: #7f8c8d;
}

.contact-form {
    background-color: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #2c3e50;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

/* 页脚样式 */
.footer {
    background-color: #2c3e50;
    color: #fff;
    padding: 80px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 60px;
    margin-bottom: 50px;
}

.footer-info h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #3498db;
}

.footer-info p {
    color: #bdc3c7;
    line-height: 1.8;
}

.footer-links h4,
.footer-social h4 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #fff;
}

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

.footer-links li {
    margin-bottom: 12px;
}

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

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

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background-color: #34495e;
    color: #fff;
    border-radius: 50%;
    transition: all 0.3s ease;
    font-size: 18px;
}

.social-icons a:hover {
    background-color: #3498db;
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #34495e;
    color: #bdc3c7;
}

.footer-bottom p {
    margin-bottom: 10px;
}

.footer-bottom .icp {
    font-size: 14px;
    opacity: 0.8;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero-content h2 {
        font-size: 36px;
    }
    
    .hero-content p {
        font-size: 20px;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background-color: #fff;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .nav-links li {
        margin: 25px 0;
    }
    
    .hero {
        padding: 120px 0 80px;
    }
    
    .hero-content h2 {
        font-size: 28px;
    }
    
    .hero-content p {
        font-size: 18px;
    }
    
    .section-title h2 {
        font-size: 28px;
    }
    
    .about,
    .services,
    .team,
    .contact {
        padding: 80px 0;
    }
    
    .footer-content {
        gap: 40px;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 15px;
    }
    
    .navbar .container {
        padding: 15px;
    }
    
    .logo h1 {
        font-size: 20px;
    }
    
    .hero-content h2 {
        font-size: 24px;
    }
    
    .hero-content p {
        font-size: 16px;
    }
    
    .section-title h2 {
        font-size: 24px;
    }
    
    .section-title p {
        font-size: 16px;
    }
    
    .about-text h3 {
        font-size: 20px;
    }
    
    .contact-info,
    .contact-form {
        padding: 30px 20px;
    }
    
    .footer {
        padding: 60px 0 20px;
    }
    
    .footer-content {
        gap: 30px;
    }
}