.article-body h3 {
  margin: 28px 0 0;
  color: var(--fg);
  font-size: 20px;
  line-height: 1.35;
}

.article-body p,
.article-body li {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.75;
}

.article-body ul,
.article-body ol {
  margin: 18px 0 0;
  padding-left: 24px;
}

.article-body li + li {
  margin-top: 10px;
}

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

.article-figure {
  margin: 34px 0 8px;
}

.article-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: 6px;
}

.article-figure figcaption {
  margin-top: 10px;
  color: var(--soft);
  font-size: 14px;
  line-height: 1.55;
}

.quick-answer {
  margin: 0 0 34px;
  padding: 24px 26px;
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: inset 0 3px 0 var(--accent);
}

.quick-answer strong {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.quick-answer p {
  margin: 0;
  color: var(--fg);
}

.comparison-table {
  width: 100%;
  margin: 24px 0 8px;
  border-collapse: collapse;
  background: var(--surface);
  font-size: 15px;
}

.comparison-table th,
.comparison-table td {
  padding: 15px 16px;
  border: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.comparison-table th {
  color: var(--fg);
  background: #edf0ec;
  font-weight: 900;
}

.comparison-table td {
  color: var(--muted);
}

.steps {
  display: grid;
  gap: 14px;
  margin-top: 24px;
  padding: 0;
  list-style: none;
  counter-reset: article-steps;
}

.steps li {
  position: relative;
  min-height: 52px;
  margin: 0;
  padding: 13px 16px 13px 58px;
  border: 1px solid var(--border);
  background: var(--surface);
  counter-increment: article-steps;
}

.steps li::before {
  position: absolute;
  top: 13px;
  left: 15px;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--fg);
  color: white;
  content: counter(article-steps);
  font-size: 13px;
  font-weight: 900;
}

.factor-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 24px;
  border: 1px solid var(--border);
  background: var(--border);
}

.factor {
  padding: 20px;
  background: var(--surface);
}

.factor h3 {
  margin: 0;
  font-size: 18px;
}

.factor p {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.6;
}

.note {
  margin-top: 24px;
  padding: 20px 22px;
  border: 1px solid var(--border);
  background: var(--surface);
}

.note p {
  margin: 0;
  font-size: 16px;
}

.faq {
  margin-top: 22px;
  border-top: 1px solid var(--border);
}

.faq details {
  border-bottom: 1px solid var(--border);
}

.faq summary {
  padding: 18px 32px 18px 0;
  color: var(--fg);
  cursor: pointer;
  font-size: 17px;
  font-weight: 900;
}

.faq details p {
  margin: -4px 0 20px;
  font-size: 16px;
}

.sources {
  margin-top: 52px;
  padding-top: 26px;
  border-top: 1px solid var(--border);
}

.sources h2 {
  margin-top: 0;
  font-size: 28px;
}

.sources li {
  font-size: 15px;
  line-height: 1.6;
}

.related-guides {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.related-guide {
  display: block;
  padding: 18px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--fg) !important;
  text-decoration: none !important;
}

.related-guide span {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.5;
}

@media (max-width: 640px) {
  .factor-grid,
  .related-guides {
    grid-template-columns: 1fr;
  }

  .comparison-wrap {
    overflow-x: auto;
  }

  .comparison-table {
    min-width: 560px;
  }
}