.about-shell { width: min(1080px, calc(100% - 40px)); margin: 0 auto; padding: 70px 0 70px; }
.about-intro { max-width: 820px; margin-bottom: 62px; }
.about-intro h1 { max-width: 850px; margin: 0; font-family: Georgia, 'Times New Roman', serif; font-size: clamp(43px, 7vw, 78px); font-weight: 400; line-height: .98; letter-spacing: -.05em; }
.about-intro > p:not(.kicker) { max-width: 720px; margin: 22px 0 0; color: var(--muted); font-size: 16px; line-height: 1.7; }
.version-chip { width: fit-content; margin-top: 25px; padding: 8px 11px; display: flex; align-items: center; gap: 8px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 8px; letter-spacing: .06em; }
.version-chip b { color: var(--ink); font-size: 9px; }
.version-chip i { width: 3px; height: 3px; border-radius: 50%; background: var(--gold); }
.about-section { margin-top: 18px; padding: 30px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); box-shadow: 0 18px 52px rgba(0,0,0,.14); }
.section-heading { margin-bottom: 24px; display: flex; align-items: flex-start; gap: 15px; }
.section-heading > p { margin: 3px 0 0; color: var(--gold); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 9px; }
.section-heading > div { display: grid; gap: 7px; }
.section-heading h2 { margin: 0; font-family: Georgia, 'Times New Roman', serif; font-size: clamp(24px, 4vw, 34px); font-weight: 400; letter-spacing: -.025em; }
.section-heading span { color: var(--muted); font-size: 11px; line-height: 1.55; }
.pipeline-grid, .architecture-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.pipeline-grid article, .architecture-grid article { min-height: 180px; padding: 18px; border: 1px solid var(--line); border-radius: 7px; background: var(--raised); }
.pipeline-grid em, .architecture-grid code { color: var(--gold); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 8px; font-style: normal; letter-spacing: .08em; }
.pipeline-grid h3, .architecture-grid h3 { margin: 28px 0 10px; font-size: 12px; }
.pipeline-grid p, .architecture-grid p { margin: 0; color: var(--muted); font-size: 10px; line-height: 1.65; }
.format-table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 7px; }
.format-table { width: 100%; min-width: 760px; border-collapse: collapse; text-align: left; }
.format-table th, .format-table td { padding: 16px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 10px; line-height: 1.55; vertical-align: top; }
.format-table thead th { color: var(--quiet-ink); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 8px; letter-spacing: .08em; text-transform: uppercase; }
.format-table tbody th { color: var(--ink); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; }
.format-table tr:last-child > * { border-bottom: 0; }
.timing { display: inline-flex; align-items: center; gap: 6px; }
.timing::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--gold); }
.timing.live::before { background: #4c7d5f; }
.about-split { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.about-section.compact { min-height: 100%; }
.technical-list { margin: 0; padding: 0; display: grid; gap: 0; list-style: none; }
.technical-list li { position: relative; padding: 12px 8px 12px 23px; border-top: 1px solid var(--line); color: var(--muted); font-size: 10px; line-height: 1.55; }
.technical-list li::before { content: '✓'; position: absolute; left: 2px; color: var(--gold); }
.performance-item { padding: 15px 0; border-top: 1px solid var(--line); }
.performance-item b { font-size: 10px; }
.performance-item p { margin: 7px 0 0; color: var(--muted); font-size: 10px; line-height: 1.6; }
.technical-list.columns { grid-template-columns: 1fr 1fr; column-gap: 20px; }

@media (max-width: 820px) {
  .pipeline-grid, .architecture-grid { grid-template-columns: 1fr 1fr; }
  .about-split { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .about-shell { width: min(100% - 24px, 1080px); padding: 42px 0 45px; }
  .about-intro { margin-bottom: 38px; }
  .about-intro > p:not(.kicker) { font-size: 13px; }
  .about-section { padding: 22px 16px; }
  .pipeline-grid, .architecture-grid { grid-template-columns: 1fr; }
  .pipeline-grid article, .architecture-grid article { min-height: 0; }
  .pipeline-grid h3, .architecture-grid h3 { margin-top: 18px; }
  .technical-list.columns { grid-template-columns: 1fr; }
  .header-tools { gap: 10px; }
}

@media (max-width: 410px) {
  .about-section { margin-inline: -12px; border-right: 0; border-left: 0; border-radius: 0; }
}