.article-prose {
  display: block;
  width: 100%;
  min-width: 0;
  overflow: visible;
  overflow-wrap: break-word;
  color: var(--color-text);
  font-size: 17px;
  line-height: 1.75;
}

.article-prose > :first-child { margin-top: 0; }
.article-prose > :last-child { margin-bottom: 0; }

.article-prose h2,
.article-prose h3,
.article-prose h4 {
  margin: 1.7em 0 0.6em;
  color: #1b2d50;
  line-height: 1.35;
  letter-spacing: -0.02em;
}

.article-prose h2 { font-size: clamp(1.4rem, 1.8vw, 1.75rem); }
.article-prose h3 { font-size: 1.2rem; }
.article-prose h4 { font-size: 1.05rem; }

.article-prose p,
.article-prose ul,
.article-prose ol,
.article-prose figure,
.article-prose blockquote,
.article-prose table,
.article-prose pre {
  margin: 0 0 1.3em;
}

.article-prose p { color: #39445a; line-height: inherit; }
.article-prose ul,
.article-prose ol { padding-left: 1.5em; }
.article-prose li + li { margin-top: 0.45em; }
.article-prose li::marker { color: var(--color-primary); }

.article-prose a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}
.article-prose a:hover,
.article-prose a:focus-visible { color: var(--color-primary-strong); }

.article-prose img,
.article-prose video,
.article-prose iframe {
  max-width: 100%;
  height: auto;
}
.article-prose img { border-radius: 8px; }
.article-prose figcaption {
  margin-top: 0.6em;
  color: var(--color-text-soft);
  font-size: 0.82rem;
  line-height: 1.5;
}

.article-prose table {
  display: block;
  max-width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
  font-size: 0.94rem;
  line-height: 1.5;
  -webkit-overflow-scrolling: touch;
}
.article-prose th,
.article-prose td {
  min-width: 7.5rem;
  padding: 0.75em 0.9em;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
}
.article-prose th { background: #eef2fa; color: #1b2d50; }
.article-prose tr:nth-child(even) td { background: #f7f9fd; }

.article-prose blockquote {
  padding: 1em 1.25em;
  border-left: 1px solid var(--color-primary);
  background: #f3f6fc;
}
.article-prose blockquote > :last-child { margin-bottom: 0; }
.article-prose pre { overflow-x: auto; }

.article-prose .article-lead {
  margin-bottom: 1.75em;
  color: #263653;
  font-size: 1.12rem;
  line-height: 1.7;
}

.article-prose .article-summary,
.article-prose .article-toc,
.article-prose .article-cta {
  margin: 1.6em 0;
  padding: 1.25em 1.4em;
  border-radius: 10px;
}

.article-prose .article-summary {
  border-left: 4px solid var(--color-primary);
  background: #eef3ff;
}

.article-prose .article-summary > :last-child,
.article-prose .article-cta > :last-child { margin-bottom: 0; }

.article-prose .article-toc {
  border: 1px solid var(--color-border);
  background: #fff;
}

.article-prose .article-toc strong {
  display: block;
  margin-bottom: 0.55em;
  color: #1b2d50;
}

.article-prose .article-toc ol {
  columns: 2;
  margin: 0;
}

.article-prose .article-flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  padding: 0;
  list-style: none;
}

.article-prose .article-flow li {
  margin: 0;
  padding: 1em 0.65em;
  border-radius: 8px;
  background: #eef3ff;
  color: #1b2d50;
  font-size: 0.9rem;
  font-weight: 700;
  text-align: center;
}

.article-prose .article-product-section {
  margin: 3em 0 2.2em;
  padding-top: 1.6em;
  border-top: 3px solid var(--color-primary);
}

.article-prose .article-product-section > h2 { margin-top: 0; }
.article-prose .article-product-intro { color: var(--color-text-soft); }

.article-prose .article-product-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 1.5em;
}

.article-prose .article-product-card {
  display: flex;
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: #fbfcff;
  flex-direction: column;
}

.article-prose .article-product-card:last-child:nth-child(odd) {
  grid-column: 1 / -1;
}

.article-prose .article-product-image {
  width: 100%;
  margin-bottom: 14px;
  aspect-ratio: 620 / 460;
  border-radius: 6px;
  background: #fff;
  object-fit: contain;
}

.article-prose .article-tag {
  color: var(--color-primary);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.article-prose .article-product-card h3 {
  margin: 0.7em 0 0.45em;
  font-size: 1.05rem;
}

.article-prose .article-product-card p {
  margin-bottom: 1em;
  color: var(--color-text-soft);
  font-size: 0.94rem;
  line-height: 1.6;
}

.article-prose .article-product-card a {
  margin-top: auto;
  font-weight: 700;
}

.article-prose .article-table-scroll {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  margin: 1.3em 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.article-prose .article-table-scroll table {
  min-width: 610px;
  margin-bottom: 0;
}

.article-prose .article-cta { background: #eef3ff; }
.article-prose .article-cta h2 { margin-top: 0; }

.article-prose .article-faq details {
  padding: 0.95em 0;
  border-top: 1px solid var(--color-border);
}

.article-prose .article-faq details:last-child {
  border-bottom: 1px solid var(--color-border);
}

.article-prose .article-faq summary {
  color: #1b2d50;
  font-weight: 700;
  line-height: 1.5;
  cursor: pointer;
}

.article-prose .article-faq details p {
  margin: 0.75em 0 0;
}

@media (min-width: 769px) {
  .media-detail-sidebar--article {
    align-self: stretch;
    align-content: start;
  }
  .media-detail-sidebar--article .media-detail-contact {
    position: sticky;
    top: 112px;
    align-self: start;
    max-height: calc(100vh - 128px);
    overflow-y: auto;
  }
}

@media (max-width: 768px) {
  .media-detail-layout > *,
  .media-detail-article,
  .article-prose .fixed-gas-guide,
  .article-prose .article-section,
  .article-prose .article-product-section { min-width: 0; max-width: 100%; }
  .article-prose { font-size: 16px; }
  .article-prose th,
  .article-prose td { min-width: 7rem; padding: 0.65em 0.75em; }
  .article-prose .article-toc ol { columns: 1; }
  .article-prose .article-flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .article-prose .article-product-grid { grid-template-columns: 1fr; }
  .article-prose .article-product-card:last-child:nth-child(odd) { grid-column: auto; }
  .article-prose .article-summary,
  .article-prose .article-toc,
  .article-prose .article-cta { padding: 1.1em; }
}