/* 全局样式 */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    scroll-behavior: smooth;
}

nav {
    background-color: #333;
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
}

nav ul {
    list-style-type: none;
    display: flex;
    margin-right: 20px;
}

nav ul li {
    margin-left: 20px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
}

nav ul li a:hover {
    color: #007BFF;
}

#home {
    background-image: url('1.jpg');
    background-size: cover;
    background-position: center;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    text-align: center;
}

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

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

.btn {
    background-color: #007BFF;
    color: white;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
    font-size: 18px;
    transition: background-color 0.3s ease;
}

.btn:hover {
    background-color: #0056b3;
}

.business-section {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #f9f9f9;
    background-attachment: fixed;
}

.business-section:nth-child(even) {
    background-color: #e9e9e9;
}

.business-content {
    text-align: center;
    max-width: 600px;
    padding: 20px;
}

.business-content i {
    font-size: 64px;
    color: #007BFF;
    margin-bottom: 20px;
}

.business-content h3 {
    font-size: 28px;
    margin-bottom: 10px;
}

.business-content p {
    font-size: 16px;
    line-height: 1.6;
}

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