/* 文档精选：沿用文档布局，增加图文推荐和置顶全文。 */
:root {
  --bg: #fff;
  --surface: #fff;
  --text: #243446;
  --muted: #718093;
  --line: #e1e7ed;
  --accent: #386cd5;
  --soft: #eef3fd;
  --code: #f4f6f9;
  --scrollbar: #c1cbd7;
  --radius: 7px;
  --docs-rail: #f8f9fb;
}
:root.dark {
  --bg: #171b22;
  --surface: #1c222b;
  --text: #e1e6ef;
  --muted: #9caabc;
  --line: #323c49;
  --accent: #91b6ff;
  --soft: #26344c;
  --code: #212b38;
  --scrollbar: #4c5d73;
  --docs-rail: #191f28;
}
.theme-gitbook .site-header {
  background: var(--surface);
}
.theme-gitbook .header-inner {
  max-width: 1560px;
  min-height: 70px;
  padding: 14px 30px;
}
.theme-gitbook .brand {
  font-size: 21px;
  font-weight: 650;
}
.theme-gitbook .theme-toggle,
.theme-gitbook .search-toggle {
  border-radius: 7px;
  border-color: transparent;
}
.theme-gitbook .theme-toggle:hover,
.theme-gitbook .search-toggle:hover {
  background: var(--soft);
}
.gitbook-workspace {
  max-width: 1500px;
  width: calc(100% - 48px);
  padding-top: 0;
  padding-bottom: 0;
}
.docs-workspace {
  display: grid;
  grid-template-columns: 224px minmax(0, 1fr) 214px;
  gap: 36px;
  min-height: calc(100vh - 165px);
}
/* 关闭首页文章后同时隐藏文章导航，并收回左侧栏占用的空间。 */
.docs-workspace.docs-without-index {
  grid-template-columns: minmax(0, 1fr) 214px;
}
.theme-archive .docs-workspace {
  display: block;
  max-width: 860px;
  min-height: 0;
  margin: auto;
}
.theme-gitbook .breadcrumbs {
  margin: 22px 0 18px;
}
.docs-content {
  padding: 34px 0 52px;
  min-width: 0;
}
.docs-workspace > .reading-index {
  padding: 32px 20px 36px 2px;
  border-right: 1px solid var(--line);
  height: 100%;
  background: linear-gradient(90deg, transparent, var(--docs-rail));
}
.docs-workspace > .home-rail,
.docs-workspace > .article-rail {
  border-left: 1px solid var(--line);
  padding: 36px 0 28px 24px;
  gap: 30px;
}
.docs-workspace .home-sidebar {
  font-size: 12px;
}
.docs-workspace .category-list a {
  font-size: 12px;
  padding: 6px 0;
}
.docs-workspace .sidebar-section h2 {
  font-size: 11px;
  letter-spacing: 0;
  color: var(--muted);
}
.docs-workspace .sidebar-section + .sidebar-section {
  margin-top: 24px;
  padding-top: 20px;
}
.docs-welcome {
  padding: 0 0 28px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 26px;
}
.docs-welcome h1 {
  font-size: 38px;
  font-weight: 700;
  letter-spacing: -0.04em;
}
.docs-welcome .intro-kicker {
  font-size: 11px;
  letter-spacing: 0.08em;
}
.docs-welcome .intro-description {
  font-size: 14px;
}
.docs-summary {
  display: flex;
  gap: 10px 20px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 11px;
  margin-top: 20px;
}
.docs-summary > span::before {
  content: "";
  width: 5px;
  height: 5px;
  background: var(--accent);
  display: inline-block;
  margin-right: 7px;
  border-radius: 50%;
}
.gitbook-workspace .theme-list-title {
  color: var(--text);
  font-size: 13px;
  letter-spacing: 0;
}
.gitbook-workspace .theme-list-heading {
  margin-bottom: 18px;
}
.gitbook-entries {
  display: grid;
  gap: 14px;
}
.gitbook-workspace .docs-chapter {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) 22px;
  gap: 16px;
  align-items: start;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 22px;
  background: var(--surface);
}
.docs-chapter:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 18px rgba(30, 71, 140, 0.045);
}
.chapter-marker {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 34px;
  color: var(--accent);
}
.docs-chapter h2 {
  font-size: 20px;
  letter-spacing: 0;
  margin: 0 0 8px;
}
.docs-chapter .card-summary {
  font-size: 13px;
  -webkit-line-clamp: 2;
  margin-bottom: 13px;
  line-height: 1.9;
}
.chapter-arrow {
  color: var(--muted);
  font-size: 21px;
  align-self: center;
}
.docs-chapter .card-meta {
  font-size: 11px;
}
.docs-reading {
  min-height: 0;
}
.docs-reading .docs-content {
  padding-top: 10px;
}
.docs-reading > .reading-index,
.docs-reading > .article-rail {
  padding-top: 12px;
}
.docs-reading .article-header {
  padding-bottom: 24px;
}
.docs-reading .article-header h1 {
  font-size: 38px;
  font-weight: 700;
}
.docs-reading .prose {
  font-size: 15px;
  line-height: 1.95;
}
.docs-reading .prose h2 {
  font-size: 25px;
  border-top: 1px solid var(--line);
  padding-top: 24px;
  margin-top: 36px;
}
.docs-reading .prose h3 {
  font-size: 20px;
}
.docs-reading .prose blockquote {
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  background: var(--soft);
  padding: 14px 20px;
  border-radius: 6px;
}
.gitbook-workspace .ad-copy {
  padding: 14px;
  font-size: 12px;
}
.gitbook-workspace .toc {
  font-size: 12px;
}
.gitbook-workspace .toc > div {
  font-size: 11px;
  color: var(--muted);
}
.theme-gitbook .site-footer {
  max-width: 1500px;
  padding: 16px 0;
}
@media (max-width: 1160px) {
  .docs-workspace {
    grid-template-columns: 180px minmax(0, 1fr) 184px;
    gap: 24px;
  }
  .docs-workspace > .home-rail,
  .docs-workspace > .article-rail {
    padding-left: 18px;
  }
  .docs-workspace > .reading-index {
    padding-right: 14px;
  }
}
@media (max-width: 980px) {
  .docs-workspace.docs-without-index {
    display: block;
  }
  .docs-workspace {
    grid-template-columns: 170px minmax(0, 1fr);
    gap: 24px;
  }
  .docs-workspace > .home-rail,
  .docs-workspace > .article-rail {
    grid-column: 2;
    border: 0;
    padding: 0 0 28px;
    margin: 0;
  }
  .docs-workspace > .home-rail .home-sidebar {
    display: none;
  }
  .docs-workspace .reading-index {
    grid-row: 1/3;
  }
  .docs-workspace > .article-rail .ad-slot {
    grid-template-columns: minmax(0, 1fr);
  }
  .docs-workspace {
    min-height: 0;
  }
  .docs-content {
    padding-bottom: 28px;
  }
}
@media (max-width: 760px) {
  .gitbook-workspace {
    width: calc(100% - 36px);
  }
  .docs-workspace {
    display: block;
  }
  .docs-content {
    padding: 24px 0;
  }
  .docs-welcome h1 {
    font-size: 32px;
  }
  .gitbook-workspace .docs-chapter {
    grid-template-columns: 24px minmax(0, 1fr);
    gap: 12px;
    padding: 18px 16px;
  }
  .chapter-arrow {
    display: none;
  }
  .docs-chapter h2 {
    font-size: 21px;
  }
  .docs-workspace > .home-rail,
  .docs-workspace > .article-rail {
    padding: 0 0 24px;
  }
  .docs-reading .article-header h1 {
    font-size: 30px;
  }
  .docs-reading .prose h2 {
    font-size: 23px;
  }
  .gitbook-workspace .article-rail {
    margin: 0;
  }
}

/* 推荐数据只来自首页侧边广告位；没有条目时模板不输出空栏。 */
.featured-recommendations {
  min-width: 0;
  align-self: start;
  padding: 32px 20px 36px 2px;
  border-right: 1px solid var(--line);
  background: linear-gradient(90deg, transparent, var(--docs-rail));
}
.featured-recommendations .index-heading { font-size: 13px; margin-top: 0; }
.featured-recommendations .ad-slot { margin: 0; display: grid; grid-template-columns: minmax(0, 1fr); gap: 18px; }
.featured-recommendations .ad-card { border-radius: 8px; background: var(--surface); }
.featured-recommendations .ad-image { display: block; width: 100%; height: auto; max-height: none; object-fit: contain; }
.featured-recommendations .ad-copy { overflow-wrap: anywhere; padding: 14px; line-height: 1.8; }
.featured-recommendations .ad-copy > :first-child { margin-top: 0; }
.featured-recommendations .ad-copy > :last-child { margin-bottom: 0; }
.home-feature {
  min-width: 0;
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  border-radius: 8px;
  padding: 26px;
  background: var(--surface);
}
.feature-header { padding-bottom: 22px; margin-bottom: 24px; border-bottom: 1px solid var(--line); }
.feature-eyebrow { color: var(--accent); font-size: 11px; letter-spacing: .08em; margin-bottom: 12px; }
.feature-header h2 { font-size: 25px; line-height: 1.5; margin: 0 0 14px; overflow-wrap: anywhere; }
.feature-header h2 a { color: var(--text); }
.feature-header h2 a:hover { color: var(--accent); }
.feature-header .card-meta { font-size: 11px; }
.home-feature-body { font-size: 15px; line-height: 1.95; overflow-wrap: anywhere; white-space: pre-wrap; }
.home-feature-body.is-rendered { white-space: normal; }
.home-feature-body > :first-child { margin-top: 0; }
.home-feature-body h3 { font-size: 21px; margin-top: 32px; padding-top: 22px; border-top: 1px solid var(--line); }
.home-feature-body h4 { font-size: 18px; }
.home-feature-body img { display: block; max-width: 100%; height: auto; border-radius: 7px; margin: 20px auto; }
.home-feature-body figure { margin: 24px 0; }
.home-feature-body figcaption { font-size: 12px; color: var(--muted); text-align: center; }
.home-feature-body pre { overflow-x: auto; max-width: 100%; }
.home-feature-body table { display: block; max-width: 100%; overflow-x: auto; }
.home-feature-body blockquote { margin-inline: 0; background: var(--soft); padding: 12px 18px; border-left: 3px solid var(--accent); border-radius: 5px; }
.feature-footer { border-top: 1px solid var(--line); margin-top: 26px; padding-top: 18px; font-size: 13px; }
.feature-image-fallback { display: block; padding: 12px; border: 1px dashed var(--line); }
@media (max-width: 1160px) {
  .featured-recommendations { padding-right: 14px; }
  .home-feature { padding: 22px; }
}
@media (min-width: 761px) {
  .docs-home > .docs-content { grid-column: 2; grid-row: 1; }
  .docs-home > .featured-recommendations { grid-column: 1; grid-row: 1 / 3; }
  .docs-home.docs-without-index > .docs-content { grid-column: 1; }
  .docs-home.docs-without-index > .home-rail { grid-column: 2; }
}
@media (max-width: 980px) and (min-width: 761px) {
  .docs-home.docs-without-index { display: block; }
}
@media (max-width: 760px) {
  .docs-home { display: flex; flex-direction: column; }
  .docs-home > .docs-content { order: 1; width: 100%; }
  .featured-recommendations { order: 2; width: 100%; border-right: 0; border-top: 1px solid var(--line); padding: 24px 0; background: none; }
  .docs-home > .home-rail { order: 3; }
  .featured-recommendations .ad-slot { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .home-feature { padding: 20px 16px; }
  .feature-header h2 { font-size: 23px; }
  .home-feature-body { font-size: 15px; }
}
@media (max-width: 480px) {
  .featured-recommendations .ad-slot { grid-template-columns: minmax(0, 1fr); }
}