body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    max-width: 850px;
    margin: auto;
    padding: 24px;
    line-height: 1.6;
    color: #222;
    background: #ffffff;
}

h1 {
    color: #0060FF; /* #007AFF; */
    border-bottom: 2px solid #0060FF; /* #007AFF; */
    padding-bottom: 8px;
}

h2 {
    color: #0A84FF;
    margin-top: 32px;
}

p {
    margin: 12px 0;
}

ul {
    margin-left: 20px;
}

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

a:hover {
    text-decoration: underline;
}

footer {
    margin-top: 40px;
    padding-top: 16px;
    border-top: 1px solid #DDD;
    font-size: 0.9em;
    color: #666;
}