article {
    max-width: 680px;
    width: 100%;
    text-align: left;
    flex: 1;
}

.article-header {
    margin-bottom: 2rem;
    text-align: center;
}

.article-header h1 {
    font-size: clamp(1.8rem, 5vw, 2.4rem);
    margin-bottom: 0.4rem;
}

.subtitle {
    font-size: 1rem;
    color: #9BA88E;
    font-weight: 500;
}

.lead {
    font-size: 1.05rem;
    margin-bottom: 0.8rem;
}

.callout {
    border-radius: 8px;
    padding: 1rem 1.2rem;
    margin-bottom: 1.5rem;
}

.callout.warning {
    background: #F5E6D8;
    border-left: 4px solid #C68B6B;
}

.callout p {
    margin: 0;
    font-weight: 500;
}

.toc {
    background: #F7F2EA;
    border-radius: 8px;
    padding: 1.2rem 1.5rem;
    margin: 2rem 0;
}

.toc h2 {
    font-size: 1rem;
    margin-bottom: 0.6rem;
    color: #5C4D3F;
}

.toc ol {
    padding-left: 1.2rem;
    margin: 0;
}

.toc li {
    margin-bottom: 0.3rem;
}

.toc a {
    color: #C68B6B;
    text-decoration: none;
}

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

article section {
    margin-top: 2.5rem;
}

article h2 {
    text-align: left;
    font-size: 1.4rem;
    margin-bottom: 0.8rem;
}

article h3 {
    font-size: 1.1rem;
    color: #5C4D3F;
    font-weight: 600;
    margin: 1.2rem 0 0.5rem;
}

article ul, article ol {
    padding-left: 1.4rem;
    margin-bottom: 1rem;
}

article li {
    margin-bottom: 0.5rem;
}

.do-dont {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin: 1rem 0;
}

@media (max-width: 560px) {
    .do-dont {
        grid-template-columns: 1fr;
    }
}

.do-dont .dont {
    background: #F5E0E0;
    border-radius: 8px;
    padding: 1rem;
}

.do-dont .do {
    background: #E4F0E0;
    border-radius: 8px;
    padding: 1rem;
}

.do-dont h3 {
    font-size: 0.9rem;
    margin: 0 0 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.do-dont .dont h3 {
    color: #A04040;
}

.do-dont .do h3 {
    color: #4A7A4A;
}

.do-dont p, .do-dont ol {
    font-size: 0.95rem;
    margin: 0;
}

.do-dont ol {
    padding-left: 1.2rem;
}

article dl {
    margin: 1rem 0;
}

article dt {
    font-weight: 600;
    color: #C68B6B;
    margin-top: 1rem;
}

article dd {
    margin-left: 0;
    margin-top: 0.3rem;
    padding-left: 1rem;
    border-left: 2px solid #EDE4D3;
}