/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background-color: #333;
    color: white;
    position: fixed;
    width: 100%;
    z-index: 1000;
}

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

.nav-menu ul li {
    margin: 0 1rem;
}

.nav-menu ul li a {
    color: white;
    text-decoration: none;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    height: 3px;
    width: 25px;
    background-color: white;
    margin: 5px 0;
}

/* 响应式布局 */
@media (max-width: 768px) {
    .nav-menu ul {
        display: none;
        flex-direction: column;
        background-color: #333;
        position: absolute;
        top: 60px;
        right: 0;
        width: 100%;
    }

    .nav-menu ul.show {
        display: flex;
    }

    .hamburger {
        display: flex;
    }
}

.home-content {
    background: url('waihui.jpg') no-repeat center center/cover;
    text-align: center;
    padding: 25rem 2rem;
    color: white;
}

.cta-button {
    background-color: #007bff;
    padding: 1rem 2rem;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    margin: 1rem;
}

.services-content, .market-analysis-content, .education-content, .contact-content {
    padding: 8rem 2rem;
    text-align: center;
}

.footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 1rem;
    margin-top: 2rem;
}