/* ===== 文档索引（/library/docs/）===== */

.page-downloads-docs .path {
  margin: 0 0 var(--space-6);
}

/* 首屏与定位 */
.page-downloads-docs .docs-intro__grid {
  display: grid;
  gap: var(--space-6);
}

.page-downloads-docs .docs-intro__main > * + * {
  margin-top: var(--space-3);
}

.page-downloads-docs .docs-aside {
  display: grid;
  gap: var(--space-3);
  align-content: start;
  padding-left: var(--space-3);
  border-left: var(--border-thin) solid var(--color-line);
}

.page-downloads-docs .docs-aside p {
  margin: 0;
}

.page-downloads-docs .docs-figure {
  margin: var(--space-8) 0 0;
}

.page-downloads-docs .docs-figure .media__caption,
.page-downloads-docs .docs-order__figure .media__caption,
.page-downloads-docs .topics-aside .media__caption {
  margin-top: var(--space-2);
}

/* 两组划分 */
.page-downloads-docs .docs-groups .measure {
  max-width: var(--measure);
}

.page-downloads-docs .group-split {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.page-downloads-docs .group-block {
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-downloads-docs .group-block__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1) var(--space-3);
}

.page-downloads-docs .group-block__head h3 {
  margin: 0;
}

.page-downloads-docs .group-block__range {
  margin-left: auto;
  font-size: var(--text-sm);
  color: var(--color-accent);
  letter-spacing: 0.04em;
}

.page-downloads-docs .group-block p {
  max-width: var(--measure);
  margin: var(--space-2) 0 0;
}

.page-downloads-docs .group-rule {
  max-width: var(--measure);
  margin: var(--space-6) 0 0;
  padding-left: var(--space-3);
  border-left: calc(var(--border-thick) * 4) solid var(--color-primary);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

/* 六条主题清单 */
.page-downloads-docs .topics-grid {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.page-downloads-docs .topics-main > .annotation {
  margin: 0 0 var(--space-4);
}

.page-downloads-docs .doc-list {
  border-top: var(--border-thin) solid var(--color-line);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-downloads-docs .doc-entry + .doc-entry {
  border-top: var(--border-thin) solid var(--color-line);
}

.page-downloads-docs .doc-trigger {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1) var(--space-3);
  width: 100%;
  margin: 0;
  padding: var(--space-3) var(--space-2);
  border: 0;
  border-left: calc(var(--border-thick) * 4) solid transparent;
  background: none;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: background-color 160ms ease, border-color 160ms ease;
}

.page-downloads-docs .doc-trigger:hover,
.page-downloads-docs .doc-trigger:focus-visible {
  background-color: var(--color-primary-soft);
  border-left-color: var(--color-accent);
}

.page-downloads-docs .doc-code {
  flex: 0 0 auto;
  min-width: 74px;
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-ink);
  letter-spacing: 0.02em;
}

.page-downloads-docs .doc-trigger__body {
  flex: 1 1 16ch;
  min-width: 0;
}

.page-downloads-docs .doc-name {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-downloads-docs .doc-summary {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-downloads-docs .doc-trigger .tag {
  margin-left: auto;
}

.page-downloads-docs .doc-panel {
  padding: 0 var(--space-2) var(--space-4);
}

.page-downloads-docs .doc-fields {
  display: grid;
  gap: var(--space-2);
  margin: 0;
}

.page-downloads-docs .doc-field {
  display: grid;
  gap: var(--space-1);
  padding-top: var(--space-2);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-downloads-docs .doc-field dt {
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
}

.page-downloads-docs .doc-field dd {
  max-width: var(--measure);
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-ink);
}

.page-downloads-docs .doc-link {
  font-size: var(--text-sm);
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--color-accent);
}

.page-downloads-docs .doc-link:hover,
.page-downloads-docs .doc-link:focus-visible {
  color: var(--color-focus);
  border-bottom-color: var(--color-focus);
}

.page-downloads-docs .topics-aside {
  display: grid;
  gap: var(--space-4);
  align-content: start;
}

.page-downloads-docs .topics-aside .annotation {
  margin: 0;
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
}

/* 阅读路径 */
.page-downloads-docs .order-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
}

.page-downloads-docs .order-diagram {
  display: block;
  width: 100%;
  height: auto;
  margin-top: var(--space-6);
}

.page-downloads-docs .order-diagram__ray {
  fill: none;
  stroke: var(--color-line);
  stroke-width: var(--border-thin);
}

.page-downloads-docs .order-diagram__node {
  fill: var(--color-surface);
  stroke: var(--color-ink-muted);
  stroke-width: var(--border-thin);
}

.page-downloads-docs .order-diagram__node--active {
  fill: var(--color-accent);
  stroke: var(--color-accent);
}

.page-downloads-docs .order-diagram__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  fill: var(--color-ink-muted);
}

.page-downloads-docs .order-cards {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.page-downloads-docs .order-card {
  padding: var(--space-3);
  border-left: calc(var(--border-thick) * 4) solid var(--color-line);
  background-color: var(--color-surface-alt);
  transition: background-color 160ms ease, border-color 160ms ease;
}

.page-downloads-docs .order-card:target {
  border-left-color: var(--color-accent);
  background-color: var(--color-primary-soft);
}

.page-downloads-docs .order-card__title {
  margin: 0;
}

.page-downloads-docs .order-card:target .order-card__title {
  color: var(--color-accent);
}

.page-downloads-docs .order-card__note {
  margin: var(--space-2) 0 0;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-downloads-docs .order-steps {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin: var(--space-3) 0 0;
  padding: 0;
  list-style: none;
  font-size: var(--text-sm);
  color: var(--color-ink);
}

.page-downloads-docs .order-steps li {
  display: flex;
  align-items: center;
}

.page-downloads-docs .order-steps li + li::before {
  content: "→";
  margin-right: var(--space-2);
  color: var(--color-ink-muted);
}

.page-downloads-docs .order-card .annotation {
  margin: var(--space-3) 0 0;
}

.page-downloads-docs .docs-order__figure {
  margin: var(--space-8) 0 0;
}

/* 收束区 */
.page-downloads-docs .next-grid {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.page-downloads-docs .next-body p {
  margin: 0;
}

.page-downloads-docs .next-body p + p {
  margin-top: var(--space-3);
}

.page-downloads-docs .next-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-downloads-docs .next-list li + li {
  border-top: var(--border-thin) solid var(--color-line);
}

.page-downloads-docs .next-list a {
  display: block;
  padding: var(--space-3) var(--space-2);
  border-left: calc(var(--border-thick) * 4) solid transparent;
  color: var(--color-ink);
  font-size: var(--text-sm);
  text-decoration: none;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}

.page-downloads-docs .next-list a:hover,
.page-downloads-docs .next-list a:focus-visible {
  background-color: var(--color-primary-soft);
  border-left-color: var(--color-accent);
  color: var(--color-accent);
}

/* 焦点与图片基础保障 */
.page-downloads-docs a:focus-visible,
.page-downloads-docs button:focus-visible {
  outline: calc(var(--border-thin) * 2) solid var(--color-focus);
  outline-offset: 2px;
}

.page-downloads-docs img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* 中屏与宽屏 */
@media (min-width: 720px) {
  .page-downloads-docs .doc-field {
    grid-template-columns: 108px minmax(0, 1fr);
    align-items: baseline;
  }

  .page-downloads-docs .doc-panel {
    padding-left: calc(74px + var(--space-3));
  }

  .page-downloads-docs .order-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-3);
  }

  .page-downloads-docs .next-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: var(--space-8);
  }
}

@media (min-width: 900px) {
  .page-downloads-docs .docs-intro__grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: var(--space-8);
  }

  .page-downloads-docs .group-split {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-8);
  }

  .page-downloads-docs .topics-grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: var(--space-8);
  }
}

/* 窄屏：路径示意图收起，保留三条路径的文字说明 */
@media (max-width: 719px) {
  .page-downloads-docs .order-diagram {
    display: none;
  }

  .page-downloads-docs .doc-trigger .tag {
    margin-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-downloads-docs .doc-trigger,
  .page-downloads-docs .order-card,
  .page-downloads-docs .next-list a {
    transition: none;
  }
}