* {
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

body {
    margin: 0;
    background: #ffffff;
    color: #222;
}

.header {
    background: #f2f2f2;
    border-bottom: 1px solid #ddd;
    padding: 10px 30px;
    display: flex;
    justify-content: center;
    gap: 20px;
}

.header a {
    color: #0066cc;
    text-decoration: none;
    font-size: 20px;
}

.header a:hover {
    text-decoration: underline;
}

.container {
    max-width: 900px;
    margin: 40px auto;
    padding: 0 20px;
}

h1 {
    font-size: 28px;
    font-weight: bold;
    margin-bottom: 20px;
}

.subtitle {
    font-size: 16px;
    margin-bottom: 20px;
}

.examples {
    margin: 20px 0;
}

.example {
    background: #d9eef9;
    padding: 10px 15px;
    margin-bottom: 10px;
    border-radius: 4px;
}

.quote {
    margin-top: 30px;
    font-style: italic;
}

.text {
    margin-top: 20px;
    line-height: 1.6;
}

.footer-image {
    margin-top: 50px;
    text-align: center;
}

.footer-image img {
    background: #d9eef9;
    padding: 2px;
    max-width: 100%;
    opacity: 1.0;
}