/* 交通比较 */
.tr-card { padding: 10px 12px; }
.tr-card__head { display: flex; gap: 8px; align-items: flex-start; }
.tr-card__names { flex: 1; min-width: 0; }
.tr-card__names h4 { font-size: 14px; margin: 0; }
.tr-sum { margin-top: 8px; }
.tr-sum__title { font-weight: 600; font-size: 13px; margin-bottom: 2px; }
.tr-block { margin-top: 10px; padding-top: 8px; border-top: 1px dashed var(--rule); }
.tr-block__title, .tr-chain__title, .tr-impact__title, .tr-trip__title { font-size: 12px; font-weight: 600; color: var(--ink-2); margin-bottom: 4px; }
.tr-kv { margin-top: 10px; padding-top: 8px; border-top: 1px dashed var(--rule); }
.tr-kv dd details { margin-top: 2px; }
.tr-kv dd details summary { cursor: pointer; }

.tr-loc { cursor: pointer; border-bottom: 1px dotted var(--ink-3); }
.tr-loc:hover, .tr-loc.is-hover { color: var(--transit); border-bottom-color: var(--transit); }
.tr-loc:focus-visible { outline: 2px solid var(--transit); outline-offset: 1px; }

.tr-segs { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.tr-segitem { padding: 6px 8px; border: 1px solid var(--rule); border-left: 3px solid var(--transit); border-radius: var(--r-m); background: var(--paper); }
.tr-segitem__top { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.tr-segitem__line { margin: 2px 0; }
.tr-transfer { font-size: 12px; color: var(--warn); padding: 0 8px; }

.tr-list { margin: 0; padding-left: 18px; font-size: 12px; display: grid; gap: 2px; }
.tr-chain + .tr-chain { margin-top: 8px; }
.tr-mini { border-collapse: collapse; font-size: 13px; margin: 2px 0 6px; }
.tr-mini td { padding: 2px 14px 2px 0; }

.tr-trip { padding: 8px 10px; border: 1px solid var(--transit); border-radius: var(--r-m); background: var(--transit-soft); }
.tr-trip .kv { margin: 8px 0; }
.tr-ok { color: var(--ok); }
.tr-warn { color: var(--warn); }
.tr-bad { color: var(--bad); }

.tr-scroll { overflow-x: auto; border: 1px solid var(--rule); border-radius: var(--r-m); background: var(--card); }
.tr-table { width: 100%; border-collapse: collapse; font-size: 12px; }
.tr-table th { text-align: left; font-weight: 600; color: var(--ink-3); padding: 6px 8px; border-bottom: 1px solid var(--rule); white-space: nowrap; }
.tr-table td { padding: 6px 8px; border-bottom: 1px dashed var(--rule); vertical-align: top; }
.tr-table tr:last-child td { border-bottom: 0; }
.tr-table tr.is-viewed td { background: var(--transit-soft); }
.tr-table td .btn { white-space: nowrap; }

.tr-city + .tr-city { margin-top: 16px; }
.tr-city__head { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 6px; }
.tr-city__head h4 { font-size: 14px; margin: 0; }
.tr-empty { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.tr-empty p { margin: 0; flex: 1; min-width: 160px; }

@media (max-width: 599px), (max-width: 1024px) and (orientation: portrait) {
  .tr-card__head { flex-wrap: wrap; }
  .tr-table { min-width: 520px; }
}

.tr-card, .tr-trip, .tr-list li, .tr-kv dd { min-width: 0; overflow-wrap: anywhere; }
@media (max-width: 599px), (max-width: 1024px) and (orientation: portrait) {
  .tr-table--wide { min-width: 760px; }
  .tr-table--wide td:nth-child(2) { min-width: 150px; }
}
.tr-impact__day + .tr-impact__day { margin-top: 10px; padding-top: 8px; border-top: 1px solid rgba(128,128,128,.25); }

/* ---- phones and tablets ---- */
.tr-card .seg button { white-space: nowrap; }
.tr-card .row > .seg { max-width: 100%; }
@media (max-width: 599px) {
  /* six options (A to F) must not squeeze into vertical letters: wrap into a 3-column grid */
  .tr-card .row > .seg { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; width: 100%; }
  .tr-card .seg button { background: var(--card); border-right: 1px solid var(--rule); border-bottom: 1px solid var(--rule); justify-content: center; }
  .tr-card .seg button[aria-pressed="true"] { background: var(--ink); }
  .tr-card .row > .spacer { display: none; }
  .tr-card .row > .btn { flex: 1 1 100%; }
  /* the station name repeats on every row and is already in the heading */
  .tr-table--trains { min-width: 0; }
  .tr-table--trains td:nth-child(-n+2) .muted { display: none; }
  .tr-table--trains th, .tr-table--trains td { padding: 6px 6px; }
  .tr-table--trains td, .tr-table--trains th { white-space: nowrap; }
  .tr-table--trains td:last-child { white-space: normal; min-width: 92px; }
}
@media (max-width: 599px), (max-width: 1024px) and (orientation: portrait) {
  .tr-trip, .tr-segitem { overflow-wrap: anywhere; }
}
@media (pointer: coarse) {
  /* small text links: give them a finger-sized hit area */
  .tr-card .sources a, .tr-kv dd a, .tr-card details > summary { display: inline-flex; align-items: center; min-height: 36px; }
  .tr-loc { padding: 6px 0; }
  .tr-card details > summary { min-height: 40px; }
  .tr-table td .btn { min-height: 40px; }
}