:root {
  color-scheme: light;
  --doc-bg: #f4f7fb;
  --doc-surface: rgba(255, 255, 255, 0.92);
  --doc-surface-strong: #ffffff;
  --doc-surface-muted: #eef3f9;
  --doc-border: rgba(15, 23, 42, 0.08);
  --doc-border-strong: rgba(15, 23, 42, 0.14);
  --doc-text: #18212f;
  --doc-text-soft: #526074;
  --doc-heading: #0f172a;
  --doc-accent: #2663eb;
  --doc-accent-soft: rgba(38, 99, 235, 0.12);
  --doc-success: #0f9f6e;
  --doc-warning: #c07218;
  --doc-danger: #c03d2b;
  --doc-shadow: 0 24px 60px rgba(15, 23, 42, 0.08);
  --doc-radius-xl: 24px;
  --doc-radius-lg: 18px;
  --doc-radius-md: 14px;
  --doc-radius-sm: 10px;
  --doc-nav-height: 82px;
  --doc-max-width: 1480px;
  --doc-font: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --doc-mono: "SFMono-Regular", "SFMono", Consolas, "Liberation Mono", Menlo, monospace;
}

html.dark {
  color-scheme: dark;
  --doc-bg: #08111f;
  --doc-surface: rgba(9, 18, 33, 0.88);
  --doc-surface-strong: #101a2d;
  --doc-surface-muted: #131f35;
  --doc-border: rgba(148, 163, 184, 0.15);
  --doc-border-strong: rgba(148, 163, 184, 0.28);
  --doc-text: #e6edf7;
  --doc-text-soft: #9bacbf;
  --doc-heading: #f8fbff;
  --doc-accent: #79a9ff;
  --doc-accent-soft: rgba(121, 169, 255, 0.18);
  --doc-shadow: 0 24px 60px rgba(2, 6, 23, 0.35);
}

html {
  scroll-behavior: smooth;
}

body.doc-body {
  margin: 0;
  min-height: 100vh;
  padding-top: var(--doc-nav-height);
  background:
    radial-gradient(circle at top left, rgba(38, 99, 235, 0.14), transparent 28%),
    radial-gradient(circle at top right, rgba(15, 159, 110, 0.1), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.66), transparent 32%),
    var(--doc-bg);
  color: var(--doc-text);
  font-family: var(--doc-font);
}

html.dark body.doc-body {
  background:
    radial-gradient(circle at top left, rgba(38, 99, 235, 0.22), transparent 30%),
    radial-gradient(circle at top right, rgba(15, 159, 110, 0.14), transparent 25%),
    linear-gradient(180deg, rgba(17, 24, 39, 0.45), transparent 34%),
    var(--doc-bg);
}

.doc-shell {
  width: min(calc(100% - 32px), var(--doc-max-width));
  margin: 0 auto;
}

.doc-topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  backdrop-filter: blur(16px);
  background: rgba(244, 247, 251, 0.82);
  border-bottom: 1px solid var(--doc-border);
}

html.dark .doc-topbar {
  background: rgba(8, 17, 31, 0.82);
}

.doc-topbar-inner {
  min-height: var(--doc-nav-height);
  display: grid;
  grid-template-columns: auto minmax(260px, 1fr) auto;
  align-items: center;
  gap: 20px;
}

.doc-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--doc-heading);
  text-decoration: none;
  font-weight: 700;
}

.doc-brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--doc-accent), #5c8dff);
  box-shadow: 0 12px 28px rgba(38, 99, 235, 0.26);
  color: #fff;
  font-size: 20px;
}

.doc-brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.doc-brand-text strong {
  font-size: 16px;
  line-height: 1.1;
}

.doc-brand-text span {
  font-size: 12px;
  color: var(--doc-text-soft);
  font-weight: 500;
}

.doc-top-search {
  position: relative;
}

.doc-top-search input {
  width: 100%;
  height: 48px;
  border: 1px solid var(--doc-border);
  background: var(--doc-surface);
  color: var(--doc-text);
  border-radius: 14px;
  padding: 0 52px 0 18px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.doc-top-search input:focus {
  border-color: var(--doc-accent);
  box-shadow: 0 0 0 4px var(--doc-accent-soft);
  background: var(--doc-surface-strong);
}

.doc-top-search svg {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--doc-text-soft);
}

.doc-search-results {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  right: 0;
  display: none;
  padding: 10px;
  border-radius: 18px;
  background: var(--doc-surface-strong);
  border: 1px solid var(--doc-border);
  box-shadow: var(--doc-shadow);
}

.doc-search-results.is-open {
  display: block;
}

.doc-search-result-link {
  display: block;
  padding: 12px 14px;
  border-radius: 12px;
  text-decoration: none;
  color: inherit;
}

.doc-search-result-link:hover,
.doc-search-result-link.is-active {
  background: var(--doc-surface-muted);
}

.doc-search-result-link.is-placeholder {
  cursor: default;
  border: 1px dashed var(--doc-border-strong);
  background: transparent;
}

.doc-search-result-link strong {
  display: block;
  font-size: 14px;
  color: var(--doc-heading);
}

.doc-search-result-link span {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  color: var(--doc-text-soft);
}

.doc-search-empty {
  padding: 14px;
  color: var(--doc-text-soft);
  font-size: 13px;
}

.doc-top-links {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.doc-top-links a,
.doc-theme-toggle,
.doc-mobile-toggle {
  height: 42px;
  padding: 0 14px;
  border-radius: 12px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--doc-text-soft);
  font: inherit;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.doc-top-links a:hover,
.doc-theme-toggle:hover,
.doc-mobile-toggle:hover {
  color: var(--doc-heading);
  border-color: var(--doc-border);
  background: var(--doc-surface);
}

.doc-mobile-toggle {
  display: none;
}

.doc-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr) 250px;
  gap: 24px;
  align-items: start;
  padding: 28px 0 48px;
}

.doc-panel {
  border: 1px solid var(--doc-border);
  background: var(--doc-surface);
  border-radius: var(--doc-radius-xl);
  box-shadow: var(--doc-shadow);
}

.doc-sidebar,
.doc-page-nav {
  position: sticky;
  top: calc(var(--doc-nav-height) + 24px);
  max-height: calc(100vh - var(--doc-nav-height) - 48px);
  overflow: auto;
}

.doc-sidebar {
  padding: 18px;
}

.doc-sidebar-header {
  padding: 12px 12px 16px;
  border-bottom: 1px solid var(--doc-border);
  margin-bottom: 14px;
}

.doc-sidebar-header strong,
.doc-page-nav strong {
  display: block;
  color: var(--doc-heading);
  font-size: 14px;
}

.doc-sidebar-header span,
.doc-page-nav span {
  display: block;
  margin-top: 4px;
  color: var(--doc-text-soft);
  font-size: 12px;
}

.doc-sidebar-group + .doc-sidebar-group {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--doc-border);
}

.doc-sidebar-group-title {
  margin: 0;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--doc-text-soft);
}

.doc-sidebar-group-summary,
.doc-mobile-panel-summary {
  margin: 8px 0 14px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--doc-text-soft);
}

.doc-sidebar-subgroup + .doc-sidebar-subgroup {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--doc-border);
}

.doc-sidebar-subgroup-title {
  margin: 0 0 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--doc-heading);
}

.doc-sidebar-list,
.doc-anchor-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.doc-sidebar-link,
.doc-anchor-list a {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 10px 12px;
  border-radius: 12px;
  text-decoration: none;
  color: var(--doc-text-soft);
  transition: all 0.2s ease;
}

.doc-sidebar-link:hover,
.doc-anchor-list a:hover {
  background: var(--doc-surface-muted);
  color: var(--doc-heading);
}

.doc-sidebar-link.is-current,
.doc-anchor-list a.is-active {
  background: var(--doc-accent-soft);
  color: var(--doc-accent);
}

.doc-sidebar-link small {
  display: block;
  margin-top: 2px;
  font-size: 12px;
  color: inherit;
  opacity: 0.88;
}

.doc-sidebar-link.is-placeholder {
  opacity: 0.72;
  border: 1px dashed var(--doc-border);
  cursor: default;
}

.doc-sidebar-link-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  flex: none;
  border-radius: 999px;
  background: var(--doc-surface-muted);
  font-size: 12px;
  font-weight: 700;
}

.doc-content-wrap {
  min-width: 0;
}

.doc-article {
  padding: 34px clamp(20px, 3vw, 42px) 30px;
}

.doc-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
  font-size: 13px;
  color: var(--doc-text-soft);
}

.doc-breadcrumb a {
  color: var(--doc-accent);
  text-decoration: none;
}

.doc-breadcrumb a:hover {
  text-decoration: underline;
}

.doc-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-radius: 999px;
  background: var(--doc-accent-soft);
  color: var(--doc-accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.doc-title {
  margin: 18px 0 12px;
  font-size: clamp(32px, 4.2vw, 48px);
  line-height: 1.08;
  color: var(--doc-heading);
  letter-spacing: -0.03em;
}

.doc-lead {
  margin: 0;
  max-width: 740px;
  font-size: 17px;
  line-height: 1.8;
  color: var(--doc-text-soft);
}

.doc-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.doc-meta-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--doc-surface-muted);
  border: 1px solid var(--doc-border);
  color: var(--doc-text-soft);
  font-size: 13px;
}

.doc-divider {
  height: 1px;
  margin: 28px 0;
  background: linear-gradient(90deg, transparent, var(--doc-border-strong), transparent);
}

.guide-content {
  max-width: 100%;
  line-height: 1.85;
  color: var(--doc-text);
  font-size: 16px;
}

.guide-content h1,
.guide-content h2,
.guide-content h3,
.guide-content h4 {
  color: var(--doc-heading);
  scroll-margin-top: calc(var(--doc-nav-height) + 26px);
  font-weight: 700;
}

.guide-content h1 {
  font-size: clamp(32px, 4vw, 42px);
  margin: 0 0 1.5rem;
  letter-spacing: -0.03em;
}

.guide-content h2 {
  margin-top: 3rem;
  margin-bottom: 1.2rem;
  padding-bottom: 0.6rem;
  font-size: clamp(26px, 3vw, 32px);
  letter-spacing: -0.02em;
  border-bottom: 1px solid var(--doc-border);
  position: relative;
}

.guide-content h2::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--doc-accent), transparent);
  border-radius: 2px;
}

.guide-content h3 {
  margin-top: 2.2rem;
  margin-bottom: 0.9rem;
  font-size: 1.4rem;
  letter-spacing: -0.01em;
}

.guide-content p,
.guide-content ul,
.guide-content ol,
.guide-content pre,
.guide-content blockquote,
.guide-content table,
.guide-content .callout-container,
.guide-content .container-tip,
.guide-content .container-warning,
.guide-content .container-info,
.guide-content .container-success {
  margin: 0 0 1.4rem;
}

.guide-content ul,
.guide-content ol {
  padding-left: 1.6rem;
}

.guide-content ul {
  list-style-type: disc;
}

.guide-content ol {
  list-style-type: decimal;
}

.guide-content ul ul {
  list-style-type: circle;
}

.guide-content li::marker {
  color: var(--doc-accent);
  font-weight: 600;
}

.guide-content li + li {
  margin-top: 0.6rem;
}

.guide-content a {
  color: var(--doc-accent);
  text-decoration: none;
  font-weight: 500;
  position: relative;
  transition: color 0.2s ease;
}

.guide-content a:hover {
  color: var(--doc-accent);
}

.guide-content a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--doc-accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
}

.guide-content a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.guide-content strong {
  color: var(--doc-heading);
  font-weight: 700;
}

.guide-content code {
  font-family: var(--doc-mono);
  padding: 0.2rem 0.4rem;
  border-radius: 6px;
  background: var(--doc-surface-muted);
  color: var(--doc-accent);
  font-size: 0.9em;
  border: 1px solid var(--doc-border);
}

.guide-content pre {
  overflow: auto;
  padding: 20px;
  border-radius: 16px;
  background: #0f172a;
  color: #e2e8f0;
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.16), inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  position: relative;
}

.guide-content pre code {
  padding: 0;
  background: transparent;
  color: inherit;
  border: none;
  font-size: 0.95em;
  line-height: 1.6;
}

.guide-content blockquote {
  padding: 20px 24px;
  border-left: 4px solid var(--doc-accent);
  background: linear-gradient(90deg, var(--doc-surface-muted), transparent);
  border-radius: 0 16px 16px 0;
  color: var(--doc-text-soft);
  font-style: normal;
  position: relative;
}

.guide-content blockquote p:last-child {
  margin-bottom: 0;
}

.guide-content img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 16px;
  border: 1px solid var(--doc-border);
  box-shadow: var(--doc-shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.guide-content img:hover {
  transform: translateY(-4px);
  box-shadow: 0 32px 64px rgba(0, 0, 0, 0.1);
  border-color: var(--doc-border-strong);
}

html.dark .guide-content img:hover {
  box-shadow: 0 32px 64px rgba(0, 0, 0, 0.5);
}

.guide-content table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  border-radius: 12px;
  border: 1px solid var(--doc-border);
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.04);
}

html.dark .guide-content table {
  box-shadow: 0 4px 16px rgba(2, 6, 23, 0.2);
}

.guide-content thead th {
  background: var(--doc-surface-muted);
  color: var(--doc-heading);
  font-weight: 600;
  text-align: left;
  border-bottom: 2px solid var(--doc-border);
}

.guide-content th,
.guide-content td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--doc-border);
  transition: background 0.2s ease;
}

.guide-content tbody tr:last-child td {
  border-bottom: none;
}

.guide-content tbody tr:hover td {
  background: var(--doc-surface-muted);
}

.tutorial-scene-grid,
.tutorial-category-grid {
  display: grid;
  gap: 18px;
  margin-top: 20px;
}

.tutorial-scene-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.tutorial-category-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.tutorial-scene-card,
.tutorial-category-card {
  border: 1px solid var(--doc-border);
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.28), transparent 52%),
    var(--doc-surface-muted);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

.tutorial-scene-card {
  display: block;
  padding: 22px;
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.tutorial-scene-card:hover {
  transform: translateY(-2px);
  border-color: var(--doc-accent);
  box-shadow: 0 20px 40px rgba(38, 99, 235, 0.12);
}

.tutorial-scene-label,
.tutorial-category-eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--doc-accent-soft);
  color: var(--doc-accent);
  font-size: 12px;
  font-weight: 700;
}

.tutorial-scene-card strong,
.tutorial-category-card h3 {
  display: block;
  margin-top: 14px;
  color: var(--doc-heading);
}

.tutorial-scene-card strong {
  font-size: 22px;
  letter-spacing: -0.02em;
}

.tutorial-scene-card p,
.tutorial-category-card p {
  margin: 10px 0 0;
  color: var(--doc-text-soft);
}

.tutorial-category-card {
  padding: 22px;
}

.tutorial-category-head h3 {
  margin: 14px 0 0;
  font-size: 24px;
  letter-spacing: -0.02em;
}

.tutorial-category-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.tutorial-category-list li + li {
  margin-top: 10px;
}

.tutorial-category-list a,
.tutorial-category-list span {
  display: block;
  padding: 12px 14px;
  border-radius: 14px;
  background: var(--doc-surface-strong);
  border: 1px solid var(--doc-border);
  color: inherit;
  text-decoration: none;
}

.tutorial-category-list a:hover {
  border-color: var(--doc-accent);
  color: var(--doc-accent);
}

.tutorial-category-list .is-placeholder {
  color: var(--doc-text-soft);
  border-style: dashed;
  background: transparent;
}

.guide-content thead th {
  background: var(--doc-surface-muted);
  color: var(--doc-heading);
}

.emoji-paragraph {
  padding-left: 1.8em;
  text-indent: -1.8em;
}

.callout-container,
.container-tip,
.container-warning,
.container-info,
.container-success {
  padding: 18px 20px;
  border-radius: 18px;
  border: 1px solid var(--doc-border);
  background: var(--doc-surface-muted);
}

.callout-container {
  border-color: rgba(38, 99, 235, 0.2);
  background: rgba(38, 99, 235, 0.08);
}

.container-tip {
  border-color: rgba(38, 99, 235, 0.2);
}

.container-warning {
  border-color: rgba(192, 114, 24, 0.24);
  background: rgba(192, 114, 24, 0.08);
}

.container-info,
.container-success {
  border-color: rgba(15, 159, 110, 0.24);
  background: rgba(15, 159, 110, 0.08);
}

.container-title,
.callout-title {
  margin-bottom: 8px;
  font-weight: 700;
  color: var(--doc-heading);
}

.highlight-text {
  background: rgba(255, 220, 96, 0.28);
  padding: 0.1rem 0.28rem;
  border-radius: 6px;
}

.important-text {
  color: var(--doc-danger);
  font-weight: 700;
}

.note-text {
  color: var(--doc-text-soft);
  font-style: italic;
}

.doc-page-nav {
  padding: 18px;
}

.doc-anchor-list li + li {
  margin-top: 4px;
}

.doc-anchor-list a[data-level="3"] {
  padding-left: 26px;
  font-size: 13px;
}

.doc-anchor-empty {
  margin: 16px 0 0;
  color: var(--doc-text-soft);
  font-size: 13px;
}

.doc-mobile-panels {
  display: none;
  gap: 16px;
  margin-bottom: 16px;
}

.doc-mobile-panel {
  padding: 16px;
}

.doc-mobile-panel summary {
  list-style: none;
  cursor: pointer;
  font-weight: 700;
  color: var(--doc-heading);
}

.doc-mobile-panel summary::-webkit-details-marker {
  display: none;
}

.doc-mobile-panel-content {
  margin-top: 14px;
}

.doc-bottom-nav {
  margin-top: 28px;
  padding: 22px;
}

.doc-bottom-nav-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.doc-bottom-link {
  display: block;
  padding: 18px;
  border-radius: 18px;
  border: 1px solid var(--doc-border);
  background: var(--doc-surface-muted);
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.doc-bottom-link:hover {
  transform: translateY(-1px);
  border-color: var(--doc-accent);
  background: var(--doc-surface-strong);
}

.doc-bottom-link-label {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--doc-text-soft);
}

.doc-bottom-link-title {
  display: block;
  color: var(--doc-heading);
  font-weight: 700;
}

.doc-bottom-link.next {
  text-align: right;
}

.doc-footer {
  padding: 0 0 44px;
}

.doc-footer-inner {
  padding: 22px 26px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  color: var(--doc-text-soft);
  font-size: 13px;
}

.doc-footer-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.doc-footer-links a {
  color: inherit;
  text-decoration: none;
}

.doc-footer-links a:hover {
  color: var(--doc-heading);
}

.doc-fab-stack {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 30;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.doc-fab {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  border: 1px solid var(--doc-border);
  background: var(--doc-surface-strong);
  color: var(--doc-heading);
  box-shadow: var(--doc-shadow);
  cursor: pointer;
}

.doc-fab:hover {
  border-color: var(--doc-accent);
}

@media (max-width: 1180px) {
  .doc-layout {
    grid-template-columns: 250px minmax(0, 1fr);
  }

  .doc-page-nav {
    display: none;
  }
}

@media (max-width: 960px) {
  .doc-topbar-inner {
    grid-template-columns: 1fr auto;
  }

  .doc-top-search {
    grid-column: 1 / -1;
    order: 3;
  }

  .doc-mobile-toggle {
    display: inline-flex;
  }

  .doc-top-links a[data-desktop-only="true"] {
    display: none;
  }

  .doc-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .doc-sidebar {
    display: none;
  }

  .doc-mobile-panels {
    display: grid;
  }

  .doc-article {
    padding: 26px 20px 24px;
  }

  .tutorial-scene-grid,
  .tutorial-category-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  body.doc-body {
    padding-top: 96px;
  }

  .doc-shell {
    width: min(calc(100% - 20px), var(--doc-max-width));
  }

  .doc-topbar-inner {
    gap: 14px;
    padding: 12px 0;
  }

  .doc-brand-text span,
  .doc-top-links a:not(.doc-mobile-toggle) {
    display: none;
  }

  .doc-title {
    font-size: 30px;
  }

  .doc-bottom-nav-grid {
    grid-template-columns: 1fr;
  }

  .doc-bottom-link.next {
    text-align: left;
  }

  .doc-fab-stack {
    right: 14px;
    bottom: 14px;
  }
}