.technical-hero {
  background: #f7f9fb;
  border-bottom: 1px solid #e6ebf0;
  padding: 4.5rem 0 3.5rem;
}

.technical-kicker {
  color: #b42318;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  margin-bottom: 0.55rem;
  text-transform: uppercase;
}

.technical-hero h1,
.section-heading h2 {
  color: #17202a;
  font-weight: 700;
  letter-spacing: 0;
}

.technical-hero h1 {
  font-size: 2.6rem;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.technical-lead {
  color: #4b5563;
  font-size: 1.08rem;
  line-height: 1.9;
  margin: 0;
  max-width: 760px;
}

.technical-index {
  background: #ffffff;
  border-bottom: 1px solid #edf1f5;
}

.technical-index-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.technical-index-list a {
  border: 1px solid #d8e0e8;
  color: #1f2937;
  font-weight: 700;
  padding: 0.55rem 0.85rem;
  text-decoration: none;
}

.technical-index-list a:hover,
.technical-index-list a:focus {
  border-color: #b42318;
  color: #b42318;
}

.technical-section {
  background: #ffffff;
}

.writing-example {
  border: 1px solid #d8e0e8;
  padding: 1.5rem;
}

.writing-example .section-heading {
  margin-bottom: 1rem;
}

.writing-example blockquote {
  background: #fbfcfd;
  border-left: 4px solid #b42318;
  color: #253142;
  line-height: 1.85;
  margin: 0;
  padding: 1rem 1.2rem;
}

.example-notes {
  border-top: 1px solid #e5ebf1;
  display: grid;
  gap: 0.8rem;
  margin-top: 1.2rem;
  padding-top: 1.2rem;
}

.example-note {
  display: grid;
  gap: 0.9rem;
  grid-template-columns: 160px minmax(0, 1fr);
}

.example-note strong {
  color: #17202a;
}

.example-note p,
.example-caution {
  color: #4b5563;
  line-height: 1.75;
  margin: 0;
}

.example-caution {
  font-size: 0.92rem;
}

.ai-repro-note {
  background: #fbfcfd;
  border: 1px solid #d8e0e8;
  margin-bottom: 1rem;
  padding: 1.2rem 1.35rem;
}

.ai-repro-note h3 {
  align-items: center;
  color: #17202a;
  display: flex;
  font-size: 1.05rem;
  font-weight: 700;
  gap: 0.55rem;
  letter-spacing: 0;
  margin-bottom: 0.65rem;
}

.ai-repro-note i {
  color: #b42318;
}

.ai-repro-note p {
  color: #4b5563;
  line-height: 1.75;
  margin: 0;
}

.technical-band {
  background: #f5f7fa;
}

.section-heading {
  margin-bottom: 1.8rem;
  max-width: 800px;
}

.section-heading h2 {
  font-size: 1.8rem;
  margin-bottom: 0;
}

.detail-grid,
.visual-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.detail-card,
.visual-item,
.analysis-row {
  background: #ffffff;
  border: 1px solid #dde5ed;
}

.detail-card,
.visual-item {
  padding: 1.25rem;
}

.detail-card h3,
.visual-item h3 {
  align-items: center;
  color: #17202a;
  display: flex;
  font-size: 1.06rem;
  font-weight: 700;
  gap: 0.55rem;
  letter-spacing: 0;
  margin-bottom: 0.8rem;
}

.detail-card h3 i,
.visual-item i,
.analysis-title i {
  color: #b42318;
}

.detail-card p,
.visual-item p,
.analysis-body p {
  color: #4b5563;
  line-height: 1.75;
}

.detail-card ul {
  color: #374151;
  margin: 0;
  padding-left: 1.2rem;
}

.detail-card li + li {
  margin-top: 0.35rem;
}

.dictionary-catalog-lead {
  color: #4b5563;
  line-height: 1.75;
  max-width: 860px;
}

.dictionary-catalog-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.dictionary-catalog-item {
  border: 1px solid #dde5ed;
  background: #ffffff;
  padding: 1.15rem;
  scroll-margin-top: 1rem;
}

.dictionary-catalog-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.7rem;
}

.dictionary-catalog-head h3 {
  color: #17202a;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0;
  margin: 0;
}

.dictionary-catalog-head span {
  border: 1px solid #d8e0e8;
  color: #41516a;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.12rem 0.4rem;
  white-space: nowrap;
}

.dictionary-catalog-item p {
  color: #4b5563;
  line-height: 1.7;
}

.dictionary-catalog-item dl {
  display: grid;
  gap: 0.4rem 0.85rem;
  grid-template-columns: 90px minmax(0, 1fr);
  margin: 0;
}

.dictionary-catalog-item dt {
  color: #2f7d5c;
  font-weight: 700;
}

.dictionary-catalog-item dd {
  color: #253142;
  margin: 0;
  overflow-wrap: anywhere;
}

.analysis-list {
  display: grid;
  gap: 1rem;
}

.analysis-row {
  display: grid;
  grid-template-columns: minmax(180px, 0.28fr) minmax(0, 1fr);
  overflow: hidden;
}

.analysis-title {
  align-items: flex-start;
  background: #fbfcfd;
  border-right: 1px solid #dde5ed;
  display: flex;
  gap: 0.75rem;
  padding: 1.2rem;
}

.analysis-title h3 {
  color: #17202a;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0;
  margin: 0;
}

.analysis-body {
  padding: 1.2rem 1.35rem;
}

.analysis-body p {
  margin-bottom: 0.85rem;
}

.analysis-body dl {
  display: grid;
  gap: 0.55rem 1rem;
  grid-template-columns: 120px minmax(0, 1fr);
  margin: 0;
}

.analysis-body dt {
  color: #2f7d5c;
  font-weight: 700;
}

.analysis-body dd {
  color: #253142;
  line-height: 1.7;
  margin: 0;
}

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

.visual-item i {
  font-size: 1.25rem;
  margin-bottom: 0.7rem;
}

@media (max-width: 991.98px) {
  .analysis-row {
    grid-template-columns: 1fr;
  }

  .detail-grid,
  .dictionary-catalog-grid,
  .visual-grid {
    grid-template-columns: 1fr;
  }

  .analysis-title {
    border-bottom: 1px solid #dde5ed;
    border-right: 0;
  }
}

@media (max-width: 575.98px) {
  .technical-hero {
    padding: 3rem 0 2.5rem;
  }

  .technical-hero h1 {
    font-size: 2rem;
  }

  .analysis-body dl {
    grid-template-columns: 1fr;
  }

  .example-note {
    grid-template-columns: 1fr;
  }
}