/* 全局样式 */
body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

nav {
    background-color: #555;
    color: #fff;
    padding: 1rem;
    text-align: center;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    padding: 0;
}

nav ul li {
    margin: 0 15px;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
    font-size: 20px;
}

section {
    padding: 50px 0;
}

.container {
    width: 80%;
    margin: 0 auto;
}

.cta-btn {
    display: inline-block;
    background-color: #007BFF;
    color: #fff;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
    font-size: 16px;
}

.hero-container {
    position: relative;
    text-align: center;
    color: white;
}

.hero-image {
    width: 100%;
    height: auto;
    opacity: 0.6;
    object-fit: fill;
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.4);
    padding: 50px;
}

.team-photo {
    width: 100%;
    max-width: 600px;
    border-radius: 8px;
    margin-top: 20px;
}

.service-icon {
    width: 50px;
    height: 50px;
    margin-bottom: 10px;
}

.project-image {
    width: 100%;
    height: auto;
    border-radius: 8px;
    margin-top: 20px;
}

.contact-bg-image {
    width: 100%;
    height: auto;
    margin-top: 20px;
    opacity: 0.8;
}

footer {
    background-color: #333;
    color: #fff;
    padding: 10px 0;
    text-align: center;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-image {
        height: 400px;
    }

    .team-photo {
        width: 100%;
    }

    .project-image {
        width: 100%;
    }
}