* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
        Ubuntu, Cantarell, "Helvetica Neue", Arial, sans-serif;
    background-color: #f7f9fc;
    color: #2c2c2c;
    line-height: 1.7;
}

.container {
    max-width: 900px;
    margin: 40px auto;
    padding: 32px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

h1 {
    font-size: 2.2rem;
    margin-bottom: 10px;
    color: #0f172a;
}

.updated-date {
    margin-bottom: 24px;
    color: #64748b;
    font-size: 0.95rem;
}

h2 {
    margin-top: 32px;
    margin-bottom: 12px;
    font-size: 1.4rem;
    color: #1e293b;
}

h3 {
    margin-top: 20px;
    margin-bottom: 8px;
    font-size: 1.1rem;
    color: #334155;
}

p {
    margin-bottom: 14px;
}

ul {
    padding-left: 22px;
    margin-bottom: 16px;
}

ul li {
    margin-bottom: 8px;
}

code {
    background-color: #f1f5f9;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9rem;
}

.contact-email {
    font-size: 1rem;
    margin-top: 8px;
}

.contact-email a {
    color: #2563eb;
    text-decoration: none;
    font-weight: 500;
}

.contact-email a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .container {
        margin: 20px;
        padding: 24px;
    }

    h1 {
        font-size: 1.8rem;
    }
}