.user-guide-page .guide-shell {
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr);
  gap: clamp(32px, 4vw, 64px);
  align-items: start;
  padding-block: clamp(32px, 4vw, 56px) clamp(56px, 7vw, 96px);
}

.guide-side {
  position: sticky;
  top: 92px;
  display: grid;
  gap: 18px;
  max-height: calc(100vh - 112px);
  overflow-y: auto;
  padding-right: 4px;
}

.lang-switch {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  padding: 1px;
  overflow: hidden;
  border: 1px solid rgba(118, 215, 255, 0.18);
  border-radius: 10px;
  background: rgba(118, 215, 255, 0.12);
}

.lang-link {
  display: grid;
  place-items: center;
  min-height: 38px;
  padding: 0 8px;
  color: var(--muted);
  font-size: 12.5px;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
  background: rgba(8, 19, 28, 0.92);
  transition: color 180ms var(--ease), background 180ms var(--ease);
}

.lang-link.is-active {
  color: #dff5ff;
  background: rgba(98, 215, 255, 0.16);
  box-shadow: inset 0 0 0 1px rgba(98, 215, 255, 0.45);
}

.guide-toc {
  padding: 16px 18px;
  border: 1px solid rgba(118, 215, 255, 0.16);
  border-radius: var(--radius-lg);
  background: rgba(8, 20, 30, 0.6);
}

.guide-toc-title {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.guide-toc ol {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: toc;
}

.guide-toc li a {
  display: block;
  padding: 5px 8px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
  border-radius: 6px;
  transition: color 160ms var(--ease), background 160ms var(--ease);
}

.guide-doc {
  min-width: 0;
  max-width: 78ch;
}

.guide-doc > h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.6vw, 3rem);
  line-height: 1.14;
  text-wrap: balance;
}

.guide-doc h2 {
  margin: 2.4em 0 0.7em;
  padding-top: 0.6em;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.4vw, 2rem);
  line-height: 1.2;
  border-top: 1px solid rgba(118, 215, 255, 0.12);
  scroll-margin-top: 96px;
}

.guide-doc h3 {
  margin: 1.9em 0 0.55em;
  color: var(--text);
  font-size: 1.15rem;
  line-height: 1.3;
  scroll-margin-top: 96px;
}

.guide-doc p {
  margin: 0 0 1em;
  color: var(--muted);
  font-size: 0.985rem;
  line-height: 1.85;
}

.guide-doc ul,
.guide-doc ol {
  margin: 0 0 1.1em;
  padding-left: 1.5em;
  color: var(--muted);
  font-size: 0.985rem;
  line-height: 1.8;
}

.guide-doc li {
  margin-bottom: 0.28em;
}

.guide-doc li::marker {
  color: rgba(98, 215, 255, 0.7);
}

.guide-doc ul.checklist {
  padding-left: 0.2em;
  list-style: none;
}

.guide-doc ul.checklist li {
  position: relative;
  padding-left: 1.7em;
}

.guide-doc ul.checklist li::before {
  position: absolute;
  top: 0.32em;
  left: 0;
  width: 0.85em;
  height: 0.85em;
  content: "";
  border: 1.5px solid rgba(98, 215, 255, 0.55);
  border-radius: 4px;
}

.guide-doc strong {
  color: var(--text);
}

.guide-doc code {
  padding: 0.12em 0.42em;
  color: #cdefff;
  font-family: ui-monospace, "SF Mono", SFMono-Regular, Menlo, monospace;
  font-size: 0.88em;
  border: 1px solid rgba(118, 215, 255, 0.16);
  border-radius: 5px;
  background: rgba(98, 215, 255, 0.08);
  white-space: nowrap;
}

.guide-doc pre {
  margin: 0 0 1.2em;
  padding: 14px 18px;
  overflow-x: auto;
  border: 1px solid rgba(118, 215, 255, 0.18);
  border-radius: var(--radius);
  background: rgba(4, 12, 18, 0.85);
}

.guide-doc pre code {
  padding: 0;
  border: 0;
  background: none;
  white-space: pre;
  font-size: 0.85rem;
  line-height: 1.7;
  color: #bfe9ff;
}

.guide-doc .table-scroll {
  margin: 0 0 1.2em;
  overflow-x: auto;
  border: 1px solid rgba(118, 215, 255, 0.16);
  border-radius: var(--radius);
  background: rgba(7, 17, 25, 0.78);
}

.guide-doc table {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.guide-doc th,
.guide-doc td {
  padding: 9px 14px;
  color: var(--muted);
  text-align: left;
  line-height: 1.6;
  border-bottom: 1px solid rgba(118, 215, 255, 0.1);
}

.guide-doc th {
  color: var(--text);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  background: rgba(98, 215, 255, 0.07);
}

.guide-doc tr:last-child td {
  border-bottom: 0;
}

.guide-doc hr {
  margin: 2.6em 0;
  border: 0;
  border-top: 1px solid rgba(118, 215, 255, 0.12);
}

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

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

.guide-github span {
  display: none;
}

@media (hover: hover) and (pointer: fine) {
  .lang-link:hover {
    color: var(--text);
    border-color: rgba(98, 215, 255, 0.4);
  }

  .guide-toc li a:hover {
    color: var(--text);
    background: rgba(98, 215, 255, 0.1);
  }
}

@media (max-width: 1020px) {
  .user-guide-page .guide-shell {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .guide-side {
    position: static;
    max-height: none;
    overflow: visible;
  }

  .lang-switch {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    max-width: 480px;
  }

  .guide-toc {
    padding: 14px 16px;
  }

  .guide-toc ol {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  }
}

@media (max-width: 720px) {
  .guide-doc table {
    min-width: 420px;
  }
}