* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* 主要内容区域，为导航条和菜单栏留出空间 */
.main-content {
    padding-top: 60px; /* 根据导航条高度调整 */
    max-width: 1635px;
    margin: 0 auto;
    padding-left: 1rem;
    padding-right: 1rem;
}

.hero-section {
    text-align: center;
    padding: 4rem 0;
    background-color: #f8f9fa;
    border-radius: 8px;
    margin-bottom: 2rem;
    margin-top: 2rem;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.cta-button {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
    text-decoration: none;
    display: inline-block;
}

.primary {
    background-color: #3498db;
    color: white;
}

.secondary {
    background-color: #2ecc71;
    color: white;
}

.tertiary {
    background-color: #e74c3c;
    color: white;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
    margin-bottom: 3rem;
}

.feature-card {
    padding: 2rem;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 2rem;
    color: #3498db;
    margin-bottom: 1rem;
}

/* 添加在文件末尾 */
.footer-section {
    margin-top: 4rem;
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid #e0e0e0;
}

.copyright-info {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.6;
}

.beian-link a {
    color: #3498db;
    text-decoration: none;
    transition: color 0.3s;
}

.beian-link a:hover {
    color: #2980b9;
    text-decoration: underline;
}