body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f4f6f9;
    color: #333;
}
.announcement {
    font-size: 1.2em;
    text-align: center;
    padding: 10px 20px;
    background: #ffffff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
}
a {
    color: #0056b3;
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}