/* ==========================================================================
   Tanz Cloud 飞毯加速 — Article & Guide Stylesheet (css/guide.css)
   ========================================================================== */

.guide-main {
  padding: 34px 0 72px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.86rem;
  color: var(--ink-muted);
  margin-bottom: 22px;
}

.breadcrumb a:hover {
  color: var(--cyan);
}

.guide-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 310px;
  gap: 28px;
  align-items: start;
}

@media (max-width: 980px) {
  .guide-layout {
    grid-template-columns: 1fr;
  }
}

.article-shell {
  padding: 36px 34px;
  border-radius: var(--radius-lg);
  background: var(--bg-layer);
  border: 1px solid var(--border-hairline);
  box-shadow: var(--shadow-card);
}

@media (max-width: 640px) {
  .article-shell {
    padding: 24px 18px;
  }
}

.article-header {
  padding-bottom: 22px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border-hairline);
}

.article-title {
  margin: 12px 0 14px;
  font-size: clamp(1.55rem, 3vw, 2.2rem);
  font-weight: 900;
  line-height: 1.28;
}

.article-byline {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--ink-muted);
}

/* GEO Key Takeaways Box */
.tldr-box {
  padding: 18px 20px;
  border-radius: var(--radius-md);
  background: rgba(0, 224, 255, 0.06);
  border: 1px solid rgba(0, 224, 255, 0.28);
  margin-bottom: 26px;
}

.tldr-title {
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--cyan);
  margin: 0 0 8px;
}

.tldr-box p,
.tldr-box ul {
  margin: 0;
  font-size: 0.93rem;
  color: var(--ink-secondary);
}

.tldr-box ul {
  padding-left: 20px;
  margin-top: 6px;
}

/* Article Body Typography */
.article-body h2 {
  margin: 30px 0 12px;
  font-size: 1.34rem;
  font-weight: 800;
  padding-left: 12px;
  border-left: 4px solid var(--flame);
}

.article-body h3 {
  margin: 22px 0 8px;
  font-size: 1.1rem;
  color: #e2e8f0;
}

.article-body p {
  margin: 0 0 16px;
  color: var(--ink-secondary);
  font-size: 0.99rem;
  line-height: 1.85;
}

.article-body ul,
.article-body ol {
  margin: 0 0 18px;
  padding-left: 22px;
  color: var(--ink-secondary);
  line-height: 1.8;
}

.article-body li {
  margin-bottom: 6px;
}

.article-body a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-body a.btn {
  color: #ffffff;
  text-decoration: none;
}

.article-body code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  padding: 2px 6px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
  color: #fde68a;
}

.inline-cta {
  margin: 26px 0;
  padding: 22px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(255, 123, 41, 0.14), rgba(0, 224, 255, 0.08));
  border: 1px solid rgba(255, 123, 41, 0.38);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.inline-cta strong {
  display: block;
  font-size: 1.05rem;
  margin-bottom: 4px;
}

.inline-cta span {
  font-size: 0.88rem;
  color: var(--ink-secondary);
}

/* Prev / Next & Related Articles */
.prev-next-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 30px;
  padding-top: 24px;
  border-top: 1px solid var(--border-hairline);
}

@media (max-width: 640px) {
  .prev-next-nav {
    grid-template-columns: 1fr;
  }
}

.pn-card {
  display: block;
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-hairline);
  transition: border-color 0.2s ease;
}

.pn-card:hover {
  border-color: var(--cyan);
}

.pn-label {
  display: block;
  font-size: 0.76rem;
  color: var(--ink-muted);
  margin-bottom: 4px;
}

.pn-title {
  font-weight: 700;
  font-size: 0.94rem;
  color: var(--ink-primary);
}

.related-section {
  margin-top: 32px;
}

.related-section h2 {
  margin: 0 0 16px;
  font-size: 1.24rem;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

@media (max-width: 780px) {
  .related-grid {
    grid-template-columns: 1fr;
  }
}

.related-item {
  display: block;
  padding: 16px;
  border-radius: 14px;
  background: var(--bg-layer);
  border: 1px solid var(--border-hairline);
  transition: border-color 0.2s ease;
}

.related-item:hover {
  border-color: var(--border-flame);
}

.related-item strong {
  display: block;
  font-size: 0.94rem;
  margin-bottom: 6px;
}

.related-item span {
  font-size: 0.82rem;
  color: var(--ink-muted);
}

/* Sidebar */
.guide-sidebar {
  display: grid;
  gap: 18px;
  position: sticky;
  top: 94px;
}

.side-box {
  padding: 20px;
  border-radius: var(--radius-md);
  background: var(--bg-layer);
  border: 1px solid var(--border-hairline);
}

.side-box h3 {
  margin: 0 0 12px;
  font-size: 1rem;
}

.side-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
  font-size: 0.88rem;
  color: var(--ink-secondary);
}

.side-links a:hover {
  color: var(--cyan);
}