body {
        background-color: #f0f4f9;
        font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
        color: #333333;
        margin: 0;
        padding: 0;
    }
    .container {
        max-width: 600px;
        margin: 50px auto;
        padding: 40px;
        background-color: #ffffff;
        border-radius: 28px;
        text-align: center;
    }
    h1 {
        color: #C7D33E;
        font-size: 28px;
        margin-bottom: 20px;
    }
    p {
        font-size: 16px;
        margin-bottom: 30px;
    }
    a {
    color: #4599B3;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
    font-weight: bold;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}
    .error-code {
        font-size: 36px;
        color: #dfdfdf;
        font-weight: bold;
        margin-bottom: 20px;
    }
    footer {
        margin-top: 50px;
        font-size: 12px;
        color: #666666;
    }