.guide-breadcrumb {
  max-width: 1080px;
  margin: 0 auto;
  padding: 18px 32px 0;
  color: var(--color-ink-muted-48);
  font-size: 14px;
}

.guide-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.guide-breadcrumb li:not(:last-child)::after {
  content: "›";
  margin-left: 8px;
  color: var(--color-ink-muted-48);
}

.guide-breadcrumb a {
  color: var(--color-primary);
  text-decoration: none;
}

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

.guide-hero {
  padding-top: 44px;
  padding-bottom: 54px;
}

.guide-hero-inner,
.guide-layout,
.guide-hub-grid {
  width: min(100%, 1080px);
  margin: 0 auto;
}

.guide-hero-inner {
  max-width: 840px;
  text-align: center;
}

.guide-hero h1 {
  max-width: 900px;
  margin-right: auto;
  margin-left: auto;
}

.guide-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 18px;
  margin: 22px 0 0;
  color: var(--color-ink-muted-48);
  font-size: 14px;
}

.guide-meta span {
  white-space: nowrap;
}

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

.guide-article {
  min-width: 0;
  font-size: 17px;
  line-height: 1.9;
}

.guide-article > :first-child {
  margin-top: 0;
}

.guide-article h2 {
  margin: 64px 0 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-hairline);
  font-size: clamp(26px, 4vw, 36px);
  line-height: 1.35;
}

.guide-article h3 {
  margin: 38px 0 14px;
  font-size: clamp(21px, 3vw, 27px);
  line-height: 1.45;
}

.guide-article p,
.guide-article ul,
.guide-article ol {
  margin-top: 0;
  margin-bottom: 22px;
}

.guide-article li + li {
  margin-top: 8px;
}

.guide-summary,
.guide-note,
.guide-warning {
  margin: 28px 0;
  padding: 24px 26px;
  border-radius: var(--radius-md);
}

.guide-summary {
  border-left: 5px solid var(--color-primary);
  background: rgba(0, 102, 204, .07);
}

.guide-note {
  border: 1px solid var(--color-hairline);
  background: var(--color-canvas);
}

.guide-warning {
  border-left: 5px solid #b45309;
  background: #fff7ed;
}

.guide-summary > :last-child,
.guide-note > :last-child,
.guide-warning > :last-child {
  margin-bottom: 0;
}

.guide-figure {
  margin: 34px 0 42px;
}

.guide-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-lg);
  background: var(--color-canvas);
  box-shadow: 0 14px 36px rgba(0, 0, 0, .07);
}

.guide-figure figcaption {
  margin-top: 10px;
  color: var(--color-ink-muted-48);
  font-size: 14px;
  line-height: 1.65;
  text-align: center;
}

.guide-purpose-grid,
.guide-situation-grid,
.guide-status-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 28px 0 34px;
}

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

.guide-mini-card,
.guide-situation-card,
.guide-status-card {
  padding: 22px;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-md);
  background: var(--color-canvas);
  box-shadow: 0 10px 28px rgba(0, 0, 0, .045);
}

.guide-mini-card h3,
.guide-situation-card h3,
.guide-status-card h3 {
  margin-top: 0;
  font-size: 21px;
}

.guide-mini-card > :last-child,
.guide-situation-card > :last-child,
.guide-status-card > :last-child {
  margin-bottom: 0;
}

.guide-step-list {
  display: grid;
  gap: 16px;
  margin: 28px 0 34px;
  padding: 0;
  list-style: none;
  counter-reset: guide-step;
}

.guide-step-list > li {
  position: relative;
  min-height: 62px;
  margin: 0;
  padding: 20px 22px 20px 76px;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-md);
  background: var(--color-canvas);
  counter-increment: guide-step;
}

.guide-step-list > li::before {
  content: counter(guide-step);
  position: absolute;
  top: 18px;
  left: 20px;
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  line-height: 1;
}

.guide-step-list > li > :last-child {
  margin-bottom: 0;
}

.guide-checklist {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 18px;
  margin: 28px 0 34px;
  padding: 0;
  list-style: none;
}

.guide-checklist li {
  position: relative;
  margin: 0;
  padding: 14px 16px 14px 44px;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-md);
  background: var(--color-canvas);
}

.guide-checklist li::before {
  content: "✓";
  position: absolute;
  top: 13px;
  left: 16px;
  color: var(--color-primary);
  font-weight: 800;
}

.guide-toc {
  position: sticky;
  top: 92px;
  padding: 22px;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-md);
  background: var(--color-canvas);
  box-shadow: 0 12px 34px rgba(0, 0, 0, .06);
}

.guide-toc strong {
  display: block;
  margin-bottom: 12px;
}

.guide-toc ol {
  margin: 0;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.55;
}

.guide-toc li + li {
  margin-top: 9px;
}

.guide-toc a {
  color: var(--color-ink);
  text-decoration: none;
}

.guide-toc a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.guide-table {
  margin: 28px 0 36px;
}

.guide-table table {
  min-width: 760px;
}

.guide-cta {
  margin: 52px 0;
  padding: 30px;
  border-radius: var(--radius-lg);
  background: #0b1f33;
  color: #fff;
}

.guide-cta h2,
.guide-cta h3 {
  margin-top: 0;
  border: 0;
  color: #fff;
}

.guide-cta p {
  color: rgba(255, 255, 255, .78);
}

.guide-cta .text-link {
  color: var(--color-primary-on-dark);
}

.guide-author {
  margin-top: 54px;
  padding-top: 24px;
  border-top: 1px solid var(--color-hairline);
  color: var(--color-ink-muted-48);
  font-size: 15px;
}

.guide-related {
  margin-top: 54px;
}

.guide-related h2 {
  margin-top: 0;
}

.guide-hub-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.guide-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 30px;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-lg);
  background: var(--color-canvas);
  box-shadow: 0 12px 38px rgba(0, 0, 0, .05);
}

.guide-card h2 {
  margin: 10px 0 12px;
  font-size: clamp(23px, 3vw, 30px);
}

.guide-card p {
  margin-top: 0;
}

.guide-card .text-link {
  margin-top: auto;
  padding-top: 12px;
}

.guide-card.is-upcoming {
  background: rgba(255, 255, 255, .58);
}

.guide-card-label {
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
}

@media (max-width: 860px) {
  .guide-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .guide-toc {
    position: static;
    grid-row: 1;
  }
}

@media (max-width: 640px) {
  .guide-breadcrumb {
    padding-right: 20px;
    padding-left: 20px;
  }

  .guide-hero {
    padding-top: 34px;
    padding-bottom: 42px;
  }

  .guide-meta {
    display: grid;
    gap: 5px;
  }

  .guide-article {
    font-size: 16px;
    line-height: 1.85;
  }

  .guide-purpose-grid,
  .guide-situation-grid,
  .guide-status-grid,
  .guide-checklist {
    grid-template-columns: 1fr;
  }

  .guide-figure {
    margin: 28px 0 34px;
  }

  .guide-step-list > li {
    padding: 18px 18px 18px 68px;
  }

  .guide-step-list > li::before {
    top: 16px;
    left: 16px;
  }

  .guide-summary,
  .guide-note,
  .guide-warning,
  .guide-cta {
    padding: 21px;
  }

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

  .guide-card {
    padding: 24px;
  }
}