.articles-container {
    max-width: 850px;
    margin: 0 auto;
    padding: 40px 20px;
}

.articles-container h1 {
    font-size: 34px;
    margin-bottom: 10px;
    color: #2E5BFF;
}

.articles-container .intro {
    color: #555;
    margin-bottom: 32px;
    font-size: 17px;
}

.cluster-block {
    margin-bottom: 45px;
}

.cluster-block h2 {
    font-size: 22px;
    margin-bottom: 18px;
    border-left: 4px solid #222;
    padding-left: 12px;
}

.article-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

@media (min-width: 700px) {
    .article-list {
        grid-template-columns: 1fr 1fr;
    }
}

.article-item {
    display: block;
    border: 1px solid #e2e2e2;
    padding: 20px;
    border-radius: 8px;
    text-decoration: none;
    transition: 0.15s ease;
    background: white;
}

.article-item:hover {
    transform: translateY(-2px);
    border-color: #ccc;
}

.article-item h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: #222;
}

.article-item p {
    font-size: 15px;
    color: #555;
    margin: 0;
}