article:has(time[datetime^="2024"])::before {
    content: "2024";
    display: block;
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid lightgray;
}
article:has(time[datetime^="2024"]) ~ article:has(time[datetime^="2024"])::before { content: none; }

article:has(time[datetime^="2025"])::before {
    content: "2025";
    display: block;
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid lightgray;
}
article:has(time[datetime^="2025"]) ~ article:has(time[datetime^="2025"])::before { content: none; }

article.md::before { content: none !important; }