/**
 * 概括页章节清单 + 结构图切换
 */

.mytheme-kb-reader.is-intro:has(.mytheme-kb-intro-views) {
  --kb-read-max: 960px;
}

.mytheme-kb-reader-grid.is-intro:has(.mytheme-kb-intro-views) .mytheme-kb-content {
  justify-content: flex-start;
  min-height: 0;
}

.mytheme-kb-intro-views {
  margin-top: 3rem;
}

.mytheme-kb-intro-view-tabs {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.25rem 1.5rem;
  margin: 0 0 1.25rem;
}

.mytheme-kb-intro-view-tab {
  appearance: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: none;
  font: inherit;
  font-size: 24px; /* text-page */
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: #999; /* ink-tertiary */
  cursor: pointer;
  min-height: 44px;
}

.mytheme-kb-intro-view-tab[aria-selected="true"] {
  font-weight: 600;
  color: #222; /* ink */
}

.mytheme-kb-intro-view-tab:hover {
  color: #222;
}

.mytheme-kb-intro-view-tab:focus-visible {
  outline: 2px solid #111;
  outline-offset: 3px;
  border-radius: 4px;
}

.mytheme-kb-chapter-list__head {
  margin: 0 0 1.25rem;
}

.mytheme-kb-chapter-list__title {
  margin: 0;
  font-size: 24px; /* text-page */
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: #222;
}

.mytheme-kb-chapter-list__sub {
  margin: 0.35rem 0 0;
  font-size: 14px; /* text-caption */
  line-height: 1.5;
  color: #666; /* ink-secondary */
}

.mytheme-kb-chapter-list__head:not(:has(.mytheme-kb-chapter-list__title)) .mytheme-kb-chapter-list__sub {
  margin-top: 0;
}

.mytheme-kb-chapter-list__group {
  grid-column: 1 / -1;
  margin: 0.35rem 0 0;
  font-size: 14px; /* text-caption */
  font-weight: 400;
  line-height: 1.5;
  color: #666; /* ink-secondary */
}

.mytheme-kb-chapter-list__group:not(:first-child) {
  margin-top: 1.25rem;
}

.mytheme-kb-chapter-list__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem 1rem;
}

.mytheme-kb-chapter-card-wrap {
  position: relative;
  display: flex;
  height: 100%;
}

.mytheme-kb-chapter-card-wrap.has-edit .mytheme-kb-chapter-card {
  padding-right: 4.5rem;
}

.mytheme-kb-chapter-card-wrap .mytheme-kb-edit-link--card {
  position: absolute;
  top: 0.45rem;
  right: 0.45rem;
  z-index: 2;
}

.mytheme-kb-chapter-card {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex: 1 1 auto;
  width: 100%;
  min-height: 72px;
  padding: 0.9rem 1rem;
  border-radius: 12px;
  background: #f5f5f5;
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: background 0.15s ease;
}

.mytheme-kb-chapter-card:hover {
  background: #ededed;
}

.mytheme-kb-chapter-card:focus-visible {
  outline: 2px solid #111;
  outline-offset: 2px;
}

.mytheme-kb-chapter-card__cover {
  flex: 0 0 88px;
  width: 88px;
  height: 50px;
  border-radius: 8px;
  overflow: hidden;
  background: #ededed;
}

.mytheme-kb-chapter-card__cover img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mytheme-kb-chapter-card__body {
  min-width: 0;
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.mytheme-kb-chapter-card__meta {
  font-size: 13px; /* text-footnote */
  line-height: 1.45;
  color: #999;
}

.mytheme-kb-chapter-card__name {
  font-size: 14px; /* text-caption */
  font-weight: 500;
  line-height: 1.45;
  color: #222;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 字略小；白底加长探出卡片，靠 overflow + 圆角截断，贴边而不是整颗胶囊浮在里面 */
.mytheme-kb-chapter-card__read {
  position: absolute;
  top: 0.22rem;
  right: -0.85rem;
  z-index: 1;
  padding: 0.1rem 0.85rem;
  border-radius: 0;
  background: #fff;
  transform: rotate(45deg);
  transform-origin: center;
  pointer-events: none;
}

.mytheme-kb-chapter-card__read-text {
  display: block;
  font-size: 13px; /* text-footnote */
  line-height: 1;
  color: #999;
  white-space: nowrap;
  transform: scale(0.88);
}

.mytheme-kb-chapter-card-wrap.has-edit .mytheme-kb-chapter-card__read {
  right: 3.45rem;
}

.mytheme-kb-intro-views .mytheme-kb-mindmap {
  margin-top: 0;
}

@media (max-width: 999px) {
  .mytheme-kb-chapter-list__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 767px) {
  .mytheme-kb-chapter-card-wrap .mytheme-kb-edit-link--card {
    min-height: 44px;
    height: 44px;
    padding: 0 0.85rem;
  }

  .mytheme-kb-intro-views {
    margin-top: 2.25rem;
  }

  .mytheme-kb-intro-view-tab,
  .mytheme-kb-chapter-list__title {
    font-size: 24px;
  }

  .mytheme-kb-chapter-list__grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .mytheme-kb-chapter-card {
    transition: none;
  }
}