.research-search-row { display: grid; grid-template-columns: minmax(200px, 1fr) 160px 210px 165px auto; gap: 16px; align-items: end; }
.research-layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 28px; margin-top: 28px; align-items: start; }
.research-sidebar { position: sticky; top: 20px; }
.research-nav-title { margin: 0 0 12px; font-size: .88rem; color: #52617b; }
.research-nav { display: grid; gap: 5px; }
.research-category { display: flex; align-items: center; justify-content: space-between; gap: 10px; width: 100%; min-height: 42px; border: 1px solid transparent; border-radius: var(--tool-radius-sm); padding: 9px 12px; font: inherit; font-size: .87rem; color: var(--tool-color-text); background: transparent; text-align: left; cursor: pointer; }
.research-category:hover { background: var(--tool-color-primary-soft); }
.research-category:disabled { opacity: .45; cursor: default; }
.research-group, #resultsTitle { scroll-margin-top: 20px; }
.research-category[aria-pressed="true"] { color: var(--tool-color-primary); border-color: var(--tool-color-info-border); background: var(--tool-color-primary-soft); font-weight: 700; }
.research-category-count { font-size: .78rem; font-variant-numeric: tabular-nums; }
.research-content { min-width: 0; }
.research-result-heading { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px; margin-bottom: 20px; }
.research-result-heading h2 { font-size: 1.25rem; margin: 0; }
.research-result-heading p { margin: 0; font-size: .84rem; color: #52617b; }
.research-group + .research-group { margin-top: 30px; }
.research-group-title { font-size: 1rem; margin: 0 0 14px; }
.research-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.research-card { min-width: 0; display: flex; flex-direction: column; padding: 20px; background: var(--tool-color-surface); border: 1px solid var(--tool-color-border); border-radius: var(--tool-radius-md); }
.research-card:hover { border-color: var(--tool-color-border-strong); }
.research-card-title { margin: 0 0 10px; font-size: 1rem; line-height: 1.5; overflow-wrap: anywhere; }
.research-site-title { color: var(--tool-color-text); text-decoration: none; }
.research-site-title:hover { color: var(--tool-color-primary); text-decoration: underline; }
.research-description { margin: 0 0 12px; font-size: .88rem; color: #465570; }
.research-tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 16px; }
.research-tag { padding: 2px 7px; background: #f2f5f9; border-radius: 4px; color: #52617b; font-size: .75rem; }
.research-access-row { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; margin-top: auto; }
.research-access { font-size: .76rem; font-weight: 650; color: #52617b; }
.research-language { color: #52617b; font-size: .75rem; }
.research-card-bottom { margin-top: 16px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.research-domain { color: #52617b; font-size: .73rem; overflow-wrap: anywhere; }
.research-visit { color: var(--tool-color-primary); font-size: .86rem; font-weight: 700; text-decoration: none; white-space: nowrap; }
.research-visit:hover { text-decoration: underline; }
.research-empty[hidden] { display: none; }
.research-category:focus-visible, .research-card a:focus-visible { outline: 3px solid var(--tool-color-primary); outline-offset: 3px; border-radius: 4px; }
@media (max-width: 1100px) {
    .research-search-row { grid-template-columns: minmax(200px, 1fr) 195px; }
    .research-layout { grid-template-columns: 195px minmax(0, 1fr); gap: 18px; }
}
@media (max-width: 760px) {
    .research-layout { grid-template-columns: 1fr; gap: 20px; }
    .research-sidebar { position: static; }
    .research-nav { display: flex; overflow-x: auto; padding: 4px 3px 8px; }
    .research-category { width: auto; flex: 0 0 auto; }
    .research-search-row { grid-template-columns: 1fr 1fr; gap: 12px; }
    .research-search-row > :first-child, .research-search-row > button { grid-column: 1 / -1; }
    .research-search-row > * { min-width: 0; }
    .research-grid { grid-template-columns: 1fr; }
}