.guide-hero {
  background: var(--dark-section);
  color: var(--on-dark);
  padding: clamp(4rem, 9vw, 7.5rem) 0 clamp(3.5rem, 7vw, 6rem);
  border-bottom: 4px solid var(--accent);
}

.guide-hero h1 {
  max-width: 14ch;
  margin: 0;
  color: var(--on-dark);
  font-family: var(--heading);
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.guide-intro {
  max-width: 760px;
  margin: 1.5rem 0 0;
  color: var(--on-dark);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  line-height: 1.8;
  opacity: 0.86;
}

.guide-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2rem;
}

.guide-release {
  max-width: 760px;
  margin: 1.25rem 0 0;
  color: var(--on-dark);
  font-size: 0.92rem;
  line-height: 1.7;
  opacity: 0.76;
}

.guide-release-link {
  color: var(--on-dark);
  text-underline-offset: 0.2em;
}

.guide-layout {
  display: grid;
  grid-template-columns: minmax(180px, 220px) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
  padding-top: clamp(3rem, 6vw, 5.5rem);
  padding-bottom: clamp(4rem, 8vw, 7rem);
}

.guide-toc {
  position: sticky;
  top: 6rem;
  max-height: calc(100vh - 8rem);
  overflow-y: auto;
  padding: 1.25rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
}

.guide-toc-title {
  margin: 0 0 0.8rem;
  color: var(--text);
  font-family: var(--heading);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.guide-toc ol {
  display: grid;
  gap: 0.15rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: guide-toc;
}

.guide-toc li {
  counter-increment: guide-toc;
}

.guide-toc a {
  display: grid;
  grid-template-columns: 1.65rem 1fr;
  gap: 0.25rem;
  padding: 0.48rem 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
  text-decoration: none;
}

.guide-toc a::before {
  content: counter(guide-toc, decimal-leading-zero);
  color: var(--accent);
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
  line-height: 1.85;
}

.guide-toc a:hover,
.guide-toc a:focus-visible {
  color: var(--text);
}

.guide-toc a:focus-visible,
.guide-section a:focus-visible,
.guide-release-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: 2px;
}

.guide-content {
  min-width: 0;
}

.guide-section {
  display: block;
  scroll-margin-top: 6rem;
  padding: 0 0 clamp(3.5rem, 7vw, 5.5rem);
  margin: 0 0 clamp(3.5rem, 7vw, 5.5rem);
  border-bottom: 1px solid var(--line);
}

.guide-section:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: 0;
}

.guide-section h2 {
  margin: 0 0 1.25rem;
  color: var(--text);
  font-family: var(--heading);
  font-size: clamp(1.8rem, 3.5vw, 2.65rem);
  line-height: 1.2;
  letter-spacing: -0.025em;
}

.guide-section h3 {
  margin: 2.25rem 0 1rem;
  color: var(--text);
  font-family: var(--heading);
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  line-height: 1.35;
}

.guide-section p {
  margin: 1rem 0;
  color: var(--text);
  line-height: 1.8;
}

.guide-section a {
  color: var(--accent);
  text-underline-offset: 0.2em;
}

.guide-section code {
  padding: 0.1em 0.35em;
  background: var(--accent-soft);
  border-radius: 4px;
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 0.9em;
  overflow-wrap: anywhere;
}

.guide-list {
  display: grid;
  gap: 1rem;
  margin: 1.5rem 0;
  padding: 0;
  list-style: none;
}

.guide-list > li {
  position: relative;
  padding-left: 1.35rem;
  color: var(--text);
  line-height: 1.75;
}

.guide-list > li::before {
  content: "";
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 0.42rem;
  height: 0.42rem;
  background: var(--accent);
  border-radius: 50%;
}

.step-list {
  margin: 1.5rem 0;
  padding: 0;
  list-style: none;
  counter-reset: guide-step;
}

.step-list > li {
  position: relative;
  min-height: 2rem;
  padding-left: 3rem;
  margin: 0 0 1.35rem;
  color: var(--text);
  line-height: 1.8;
  counter-increment: guide-step;
}

.step-list > li::before {
  content: counter(guide-step);
  position: absolute;
  top: 0.05rem;
  left: 0;
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 50%;
  font-size: 0.85rem;
  font-weight: 750;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.callout {
  margin: 1.75rem 0;
  padding: 1.15rem 1.25rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: 0 12px 12px 0;
  line-height: 1.75;
}

.callout-danger {
  border-left-color: #a63f35;
}

.callout-danger strong {
  color: #a63f35;
}

.callout-warning {
  border-left-color: #946200;
}

.guide-section .guide-note {
  padding-left: 1rem;
  color: var(--muted);
  border-left: 2px solid var(--line);
  font-size: 0.93rem;
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  margin: 1.75rem 0;
}

.platform-card {
  min-width: 0;
  padding: clamp(1.25rem, 2.5vw, 1.75rem);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
}

.platform-card h3 {
  margin-top: 0;
}

.platform-card .step-list > li {
  padding-left: 2.65rem;
  font-size: 0.95rem;
}

.platform-card .step-list > li::before {
  width: 1.8rem;
  height: 1.8rem;
}

.guide-table-wrap {
  margin: 1.75rem 0;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.guide-table {
  width: 100%;
  background: var(--surface);
  border-collapse: collapse;
  color: var(--text);
  font-size: 0.93rem;
  line-height: 1.65;
}

.guide-table caption {
  padding: 1rem 1.1rem;
  color: var(--text);
  background: var(--accent-soft);
  font-family: var(--heading);
  font-weight: 700;
  text-align: left;
}

.guide-table th,
.guide-table td {
  padding: 1rem 1.1rem;
  border-top: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.guide-table th {
  color: var(--muted);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}

.acceptance-list > li {
  padding: 1.15rem 1.15rem 1.15rem 3.9rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.acceptance-list > li::before {
  top: 1.2rem;
  left: 1.15rem;
}

.code-block {
  margin: 1.5rem 0;
  overflow: hidden;
  color: var(--on-dark);
  background: var(--dark-section);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.code-block figcaption {
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--line);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.code-block pre {
  margin: 0;
  padding: 1.1rem;
  overflow-x: auto;
  tab-size: 2;
}

.guide-section .code-block code {
  padding: 0;
  color: inherit;
  background: transparent;
  font-size: 0.88rem;
  line-height: 1.7;
  overflow-wrap: normal;
}

.guide-download-links {
  align-items: center;
  gap: 1.5rem;
}

.trouble-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.5rem 0 2rem;
}

.trouble-item {
  padding: 1.2rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.trouble-item h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.trouble-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.93rem;
}

.document-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.document-list a {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  height: 100%;
  padding: 1.15rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  text-decoration: none;
  transition: border-color 160ms ease, transform 160ms ease;
}

.document-list a:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.document-list a strong {
  color: var(--accent);
}

.document-list a span {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

.guide-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
}

.guide-footer p {
  margin: 0;
}

@media (max-width: 960px) {
  .guide-layout {
    grid-template-columns: minmax(160px, 190px) minmax(0, 1fr);
    gap: 2rem;
  }

  .platform-grid,
  .trouble-list,
  .document-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .guide-hero {
    padding-top: 3.5rem;
  }

  .guide-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

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

  .guide-toc ol {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.15rem 1rem;
  }
}

@media (max-width: 520px) {
  .guide-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .guide-download-links {
    align-items: flex-start;
  }

  .guide-toc ol {
    grid-template-columns: 1fr;
  }

  .guide-section h2 {
    overflow-wrap: anywhere;
  }

  .acceptance-list > li {
    padding-right: 0.9rem;
    padding-left: 3.4rem;
  }

  .acceptance-list > li::before {
    left: 0.85rem;
  }

  .guide-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media print {
  @page {
    margin: 18mm;
  }

  .guide-hero {
    padding: 0 0 1.5rem;
    color: #000;
    background: transparent;
    border-bottom: 2px solid #000;
  }

  .guide-hero h1,
  .guide-intro,
  .guide-release,
  .guide-release-link {
    color: #000;
    opacity: 1;
  }

  .guide-hero h1 {
    max-width: none;
    font-size: 30pt;
  }

  .guide-actions,
  .guide-toc {
    display: none;
  }

  .guide-layout {
    display: block;
    max-width: none;
    padding: 0;
  }

  .guide-section {
    padding: 1.5rem 0;
    margin: 0;
    scroll-margin-top: 0;
  }

  .guide-section h2,
  .guide-section h3 {
    break-after: avoid;
  }

  .guide-section h2 {
    font-size: 20pt;
  }

  .guide-section p,
  .guide-section li,
  .guide-table {
    font-size: 10pt;
  }

  .callout,
  .platform-card,
  .code-block,
  .trouble-item,
  .step-list > li,
  .document-list li {
    break-inside: avoid;
  }

  .platform-grid,
  .trouble-list,
  .document-list {
    grid-template-columns: 1fr;
  }

  .guide-table-wrap {
    overflow: visible;
  }

  .code-block {
    color: #000;
    background: transparent;
  }

  .code-block pre {
    overflow: visible;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
  }

  .document-list a {
    transform: none;
  }

  .guide-footer {
    display: flex;
  }
}