body {
    font-family: 'Microsoft Yahei', Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f9;
    color: #333;
}

header {
    background-color: #007bff;
    color: white;
    padding: 20px 0;
    text-align: center;
    font-size: 24px;
    font-weight: bold;
}

main {
    max-width: 800px;
    margin: 50px auto;
    padding: 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

main h1 {
    font-size: 28px;
    color: #007bff;
    text-align: center;
    margin-bottom: 20px;
}

main p {
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 20px;
}

footer {
    text-align: center;
    margin-top: 30px;
    padding: 10px;
    background-color: #f8f9fa;
    border-top: 1px solid #ddd;
}

footer a {
    color: #007bff;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

.registration-form {
    margin-top: 30px;
    padding: 20px;
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: 10px;
}

.registration-form h2 {
    font-size: 20px;
    color: #333;
    margin-bottom: 15px;
}

.registration-form label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.registration-form input[type="text"],
.registration-form input[type="email"],
.registration-form textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}

.registration-form button {
    padding: 10px 20px;
    background-color: #28a745;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
}

.registration-form button:hover {
    background-color: #218838;
}