.knowledge-search {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(180px, .55fr) auto;
  align-items: end;
  gap: 14px;
  margin: 0 0 18px;
  padding: 18px;
  border: 1px solid var(--line);
  background: var(--white);
}
.knowledge-search label { display: grid; gap: 6px; color: var(--muted); font-size: 12px; font-weight: 700; }
.knowledge-search input, .knowledge-search select {
  width: 100%;
  min-height: 44px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 0;
  background: var(--white);
  color: var(--ink);
  font: inherit;
}
.knowledge-search input:focus-visible, .knowledge-search select:focus-visible {
  outline: 3px solid rgba(27, 100, 242, .24);
  outline-offset: 2px;
  border-color: var(--blue);
}
.knowledge-search-status { margin: 0 0 11px; color: var(--muted); font-size: 13px; white-space: nowrap; }
.knowledge-search-empty { margin: 0; padding: 28px 18px; border: 1px dashed var(--line); color: var(--muted); text-align: center; }
.article-list-card[hidden], .knowledge-search-empty[hidden] { display: none !important; }

@media (max-width: 760px) {
  .knowledge-search { grid-template-columns: 1fr 1fr; }
  .knowledge-search-status { grid-column: 1 / -1; margin: 0; }
}
@media (max-width: 520px) {
  .knowledge-search { grid-template-columns: 1fr; }
  .knowledge-search-status { grid-column: auto; }
}