.kb-content { display: grid; gap: 30px; max-width: 1180px; width: 100%; align-self: center; }
.kb-intro, .kb-feature { padding: 24px; }
.kb-intro > p { max-width: 920px; font-size: 16px; line-height: 1.7; }
.kb-jump-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.kb-section { display: grid; gap: 16px; scroll-margin-top: 24px; }
.kb-section-heading { display: grid; gap: 7px; }
.kb-section-heading h2 { font-size: 24px; }
.kb-section-heading > p:last-child { color: var(--text-secondary); line-height: 1.6; max-width: 850px; }
.kb-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.kb-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.kb-card { padding: 20px; border: 1px solid var(--border); border-radius: 14px; background: var(--bg-secondary); }
.kb-card h3, .kb-feature h3 { margin-bottom: 8px; font-size: 16px; }
.kb-card p, .kb-feature > p { color: var(--text-secondary); font-size: 14px; line-height: 1.65; }
.kb-feature .kb-purpose { margin-bottom: 18px; color: var(--text-secondary); }
.kb-metric-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 24px; }
.kb-metric-list > div { padding: 14px 0; border-top: 1px solid var(--border); }
.kb-metric-list h4 { margin-bottom: 5px; color: var(--primary); font-size: 14px; }
.kb-metric-list p { color: var(--text-secondary); font-size: 13px; line-height: 1.6; }
.kb-caveat { padding: 14px 18px; border-left: 3px solid var(--warning); border-radius: 0 10px 10px 0; background: var(--bg-secondary); color: var(--text-secondary); font-size: 13px; line-height: 1.6; }
.kb-value-review { padding-top: 6px; }
@media (max-width: 900px) {
  .kb-grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .kb-content { gap: 24px; }
  .kb-intro, .kb-feature { padding: 18px; }
  .kb-section-heading h2 { font-size: 21px; }
  .kb-grid, .kb-grid-3, .kb-metric-list { grid-template-columns: minmax(0, 1fr); }
}