/* ==========================================================================
   龙猫云 TotoroCloud — 文章 / 教程 / 知识库排版样式
   ========================================================================== */

.article-header {
  padding: 36px 0 8px;
}

.article-header .eyebrow {
  margin-bottom: 14px;
}

.article-header h1 {
  font-size: clamp(1.6rem, 1.3rem + 1.4vw, 2.35rem);
  margin: 0 0 16px;
  max-width: 26ch;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--text-gray);
  font-size: 0.86rem;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}

.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 48px;
  align-items: start;
}

.article-body {
  min-width: 0;
  font-size: 1.02rem;
  line-height: 1.85;
  color: #334155;
}

.article-body h2 {
  font-size: 1.4rem;
  margin: 44px 0 16px;
  padding-top: 4px;
  scroll-margin-top: calc(var(--header-height) + 20px);
}

.article-body h3 {
  font-size: 1.15rem;
  margin: 30px 0 12px;
  color: var(--heading);
}

.article-body p {
  margin: 0 0 18px;
}

.article-body ul,
.article-body ol {
  margin: 0 0 20px;
  padding-left: 1.5em;
}

.article-body li {
  margin-bottom: 8px;
}

.article-body strong {
  color: var(--heading);
}

.article-body a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.answer-box {
  background: var(--background-light);
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  margin: 0 0 32px;
  font-size: 1rem;
}

.answer-box .answer-label {
  display: block;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--primary-dark);
  margin-bottom: 8px;
}

.answer-box p {
  margin: 0;
  color: var(--heading);
}

.step-list {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
  counter-reset: step;
}

.step-list li {
  counter-increment: step;
  position: relative;
  padding: 0 0 22px 46px;
  margin: 0;
  border-left: 2px solid var(--border);
  margin-left: 17px;
}

.step-list li:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.step-list li::before {
  content: counter(step);
  position: absolute;
  left: -17px;
  top: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-list h4 {
  margin: 0 0 6px;
  font-size: 1rem;
  color: var(--heading);
}

.step-list p {
  margin: 0;
  font-size: 0.94rem;
  color: var(--text-gray);
}

.kbd {
  display: inline-block;
  background: var(--background-light);
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 0.85em;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  color: var(--primary-dark);
}

.check-table {
  width: 100%;
  font-size: 0.92rem;
}

.check-table th,
.check-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: normal;
}

.check-table th {
  background: var(--background-light);
  color: var(--heading);
  font-weight: 700;
  white-space: nowrap;
}

.check-table tr:last-child td {
  border-bottom: none;
}

.article-toc {
  position: sticky;
  top: calc(var(--header-height) + 20px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  background: var(--white);
}

.article-toc h5 {
  margin: 0 0 12px;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--text-gray);
  text-transform: uppercase;
}

.article-toc ol {
  list-style: none;
  padding: 0;
  margin: 0 0 20px;
  counter-reset: toc;
}

.article-toc li {
  margin-bottom: 10px;
}

.article-toc a {
  color: var(--heading);
  font-size: 0.88rem;
  display: block;
}

.article-toc a:hover {
  color: var(--primary-dark);
}

.toc-share {
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.toc-share p {
  font-size: 0.8rem;
  color: var(--text-gray);
  margin: 0 0 10px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 24px 0 0;
}

.article-nav-links {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin: 40px 0;
  flex-wrap: wrap;
}

.article-nav-links a {
  flex: 1;
  min-width: 220px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  color: var(--heading);
  font-size: 0.92rem;
}

.article-nav-links a:hover {
  border-color: var(--primary);
  background: var(--background-light);
}

.article-nav-links .direction {
  display: block;
  font-size: 0.76rem;
  color: var(--text-gray);
  margin-bottom: 4px;
}

.article-source {
  font-size: 0.82rem;
  color: var(--text-gray);
  background: var(--background-light);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin: 32px 0 0;
}

.article-source strong {
  color: var(--heading);
}

@media (max-width: 960px) {
  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-toc {
    position: static;
    order: -1;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }
}