.news-item summary::-webkit-details-marker { display: none; }
.news-item summary { list-style: none; }
.news-item[open] .news-chevron { transform: rotate(180deg); }
.news-filter-btn { color: #8a8a8d; transition: color .15s, border-color .15s, background-color .15s; }
.news-filter-btn.is-active { color: #0c0c0d; background: #f2f1ee; border-color: #f2f1ee; }