/* 其一 · 典籍星图样式（kb-atlas.css） */

/* 视图切换（星图 / 列表） */
.kba-seg {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
  margin-top: 12px;
  background: var(--surface);
}
.kba-seg button {
  font: inherit;
  font-size: 14px;
  letter-spacing: 2px;
  padding: 7px 22px;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}
.kba-seg button.is-active {
  background: var(--accent);
  color: #fff;
}

/* 星图画布 */
.kba-pane { margin-top: 14px; }
.kba-pane.hidden { display: none; }
.kba-svg {
  display: block;
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
  height: auto;
}

/* 枢纽 */
.kba-hub-ring { fill: var(--surface); stroke: var(--gold); stroke-width: 1.6; opacity: .9; }
.kba-hub-core { fill: var(--gold-soft); stroke: var(--gold); stroke-width: 1; }
.kba-hub-title { font-family: var(--serif); font-size: 20px; fill: var(--ink); letter-spacing: 3px; }
.kba-hub-num { font-size: 12px; fill: var(--muted); font-variant-numeric: tabular-nums; }
.kba-ticks line { stroke: var(--gold); stroke-width: 1.4; opacity: .55; }
.kba-ticks { transform-origin: 500px 500px; animation: kba-spin 160s linear infinite; }
@keyframes kba-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .kba-ticks { animation: none; } }

/* 星官 */
.kba-spoke { stroke: var(--line-strong); stroke-width: 1; opacity: .28; }
.kba-cat-dot { opacity: .92; }
.kba-cat-label {
  font-family: var(--serif);
  font-size: 19px;
  fill: var(--ink);
  cursor: pointer;
}
.kba-cat-cnt { font-size: 12px; fill: var(--muted); font-variant-numeric: tabular-nums; }
.kba-star { cursor: pointer; transition: transform .18s ease; transform-box: fill-box; transform-origin: center; }
.kba-star:hover { transform: scale(1.9); }
.kba-star-link { cursor: pointer; }

/* hover 聚光：本支提亮，他支退隐 */
.kba-cat { transition: opacity .25s ease; }
.kba-pane.kba-focus .kba-cat { opacity: .22; }
.kba-pane.kba-focus .kba-cat.is-lit { opacity: 1; }

.kba-note {
  text-align: center;
  font-size: 12.5px;
  color: var(--muted);
  margin-top: 6px;
}

/* 移动端：星图横向可拖，避免字挤成一团 */
@media (max-width: 640px) {
  .kba-svg-wrap, .kba-pane { overflow-x: auto; }
  .kba-svg { min-width: 680px; }
  .kba-cat-label { font-size: 21px; }
}