body {
    font-family: Arial, sans-serif;
    background-color: #ffffff;
    color: #333333;
    margin: 0;
    padding: 0;
}
.header {
    background-color: #d32f2f;
    color: #ffffff;
    text-align: center;
    padding: 20px 0;
}

.header > h1 {
    color: #ffffff;
}
.container {
    width: 80%;
    margin: 0 auto;
    padding: 20px 0;
}
.advantage {
    background-color: #f2f2f2;
    border: 1px solid #d32f2f;
    border-radius: 5px;
    padding: 20px;
    margin: 20px 0;
}
.advantage h3 {
    color: #d32f2f;
}
.button-container {
    text-align: center;
    margin: 30px 0;
}
.button {
    background-color: #d32f2f;
    color: #ffffff;
    border: none;
    padding: 15px 30px;
    font-size: 16px;
    cursor: pointer;
    border-radius: 5px;
}
.button:hover {
    background-color: #b71c1c;
}