.page-about {
  overflow-x: clip;
}

.page-about .ab-hero {
  padding-top: clamp(20px, 4vw, 44px);
  padding-bottom: clamp(8px, 2vw, 24px);
}

.page-about .ab-hero-grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  align-items: end;
}

.page-about .ab-kicker {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-about h1 {
  margin: 0;
  max-width: 11em;
  font-size: clamp(40px, 7.6vw, 96px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--text);
}

.page-about .ab-lede {
  margin: clamp(22px, 3vw, 30px) 0 0;
  max-width: 640px;
  font-size: clamp(15px, 1.3vw, 17px);
  line-height: 1.8;
  color: var(--muted);
}

.page-about .ab-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 3vw, 34px);
}

.page-about .ab-hero-figure {
  position: relative;
  margin: 0;
  aspect-ratio: 3 / 4;
  min-height: 280px;
  border: 1px solid var(--line);
  background: var(--ink-800);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% 93%, 0 100%);
}

.page-about .ab-hero-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.75) contrast(1.08) brightness(0.9);
}

.page-about .ab-hero-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(5, 13, 26, 0.88), rgba(5, 13, 26, 0) 58%);
  pointer-events: none;
}

.page-about .ab-hero-figure figcaption {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 14px;
  z-index: 1;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cyan-soft);
}

.page-about .ab-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  margin: clamp(36px, 5vw, 56px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-about .ab-stats li {
  padding: 18px 14px 18px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .ab-stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(22px, 2.4vw, 30px);
  letter-spacing: 0.04em;
  color: var(--amber);
  white-space: nowrap;
}

.page-about .ab-stat-label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-about .ab-section {
  padding-block: clamp(56px, 8vw, 104px);
  border-top: 1px solid var(--line-soft);
}

.page-about .ab-head {
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-about .ab-plate {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color 220ms var(--ease);
}

.page-about .ab-plate::after {
  content: "";
  width: 48px;
  height: 1px;
  background: var(--line);
  transition: width 220ms var(--ease), background 220ms var(--ease);
}

.page-about [data-chapter][data-active="true"] .ab-plate {
  color: var(--cyan);
}

.page-about [data-chapter][data-active="true"] .ab-plate::after {
  width: 80px;
  background: var(--cyan);
}

.page-about .ab-h2 {
  margin: 0;
  max-width: 18em;
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-about .ab-head-lede {
  margin: 18px 0 0;
  max-width: 720px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-about .ab-origin {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
}

.page-about .ab-origin-text p {
  margin: 0 0 18px;
  max-width: 700px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text);
}

.page-about .ab-origin-text p:last-child {
  margin-bottom: 0;
}

.page-about .ab-origin-note {
  padding: 20px 18px 22px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  background: linear-gradient(150deg, rgba(18, 50, 79, 0.75), rgba(5, 13, 26, 0.6));
}

.page-about .ab-note-label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cyan-soft);
}

.page-about .ab-note-strong {
  margin: 0 0 10px;
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--amber);
}

.page-about .ab-note-copy {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-about .ab-timeline {
  position: relative;
  margin: 0;
  padding: 0 0 0 26px;
  list-style: none;
}

.page-about .ab-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(to bottom, var(--cyan), var(--line) 78%, transparent);
}

.page-about .ab-timeline li {
  position: relative;
  padding-bottom: clamp(24px, 3vw, 36px);
}

.page-about .ab-timeline li:last-child {
  padding-bottom: 0;
}

.page-about .ab-timeline li::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 7px;
  width: 9px;
  height: 9px;
  border: 1px solid var(--cyan);
  background: var(--ink-900);
  transform: rotate(45deg);
  transition: background 200ms var(--ease), box-shadow 200ms var(--ease);
}

.page-about .ab-timeline li:hover::before {
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(34, 224, 240, 0.16);
}

.page-about .ab-tl-meta {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
}

.page-about .ab-tl-version {
  color: var(--amber);
}

.page-about .ab-tl-year {
  color: var(--muted);
}

.page-about .ab-tl-card {
  margin-top: 10px;
  padding: 18px;
  border: 1px solid var(--line-soft);
  background: linear-gradient(135deg, rgba(18, 50, 79, 0.72), rgba(11, 31, 58, 0.5));
  transition: transform 220ms var(--ease), border-color 220ms var(--ease);
}

.page-about .ab-timeline li:hover .ab-tl-card {
  transform: translateX(4px);
  border-color: var(--cyan);
}

.page-about .ab-tl-card h3 {
  margin: 0 0 8px;
  font-size: 18px;
  line-height: 1.4;
  color: var(--text);
}

.page-about .ab-tl-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-about .ab-team-grid {
  display: grid;
  gap: clamp(30px, 4vw, 48px);
  align-items: start;
}

.page-about .ab-ring-wrap {
  padding: 20px 16px 24px;
  border: 1px solid var(--line-soft);
  background: rgba(11, 31, 58, 0.55);
}

.page-about .ab-ring {
  position: relative;
  width: min(100%, 320px);
  aspect-ratio: 1;
  margin: 0 auto;
}

.page-about .ab-ring svg {
  display: block;
  width: 100%;
  height: 100%;
}

.page-about .ab-ring-seg {
  stroke: var(--cyan);
  stroke-opacity: 0.75;
  transition: stroke-width 200ms var(--ease), stroke-opacity 200ms var(--ease);
}

.page-about .ab-ring-seg:nth-of-type(2n) {
  stroke: var(--cyan-soft);
  stroke-opacity: 0.62;
}

.page-about .ab-ring-seg:nth-of-type(3n) {
  stroke: var(--amber);
  stroke-opacity: 0.55;
}

.page-about .ab-ring-seg:hover {
  stroke-width: 13;
  stroke-opacity: 1;
}

.page-about .ab-ring-center {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
  pointer-events: none;
}

.page-about .ab-ring-center strong {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(28px, 4vw, 36px);
  letter-spacing: 0.04em;
  color: var(--amber);
}

.page-about .ab-ring-center span {
  display: block;
  margin-top: 4px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-about .ab-ring-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .ab-ring-legend li {
  padding: 5px 9px;
  border: 1px solid var(--line-soft);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-about .ab-ring-legend li:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-about .ab-team-copy p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text);
}

.page-about .ab-team-copy p:last-child {
  margin-bottom: 0;
}

.page-about .ab-compare {
  display: grid;
  gap: 18px;
}

.page-about .ab-slate {
  padding: 20px 18px 22px;
  border: 1px solid var(--line);
  background: linear-gradient(150deg, rgba(18, 50, 79, 0.9), rgba(5, 13, 26, 0.85));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-about .ab-slate--venue {
  border-left: 2px solid var(--amber);
}

.page-about .ab-slate-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .ab-slate-head h3 {
  margin: 0;
  font-size: 18px;
  color: var(--text);
}

.page-about .ab-slate-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan-soft);
  white-space: nowrap;
}

.page-about .ab-fields {
  margin: 0;
}

.page-about .ab-field {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line-soft);
  font-size: 14px;
}

.page-about .ab-field:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .ab-field dt {
  color: var(--muted);
  white-space: nowrap;
}

.page-about .ab-field dd {
  margin: 0;
  text-align: right;
  color: var(--text);
}

.page-about .ab-field dd.num {
  font-family: var(--font-mono);
  color: var(--amber);
  letter-spacing: 0.04em;
}

.page-about .ab-venue-grid {
  display: grid;
  gap: 20px;
  margin-top: clamp(28px, 4vw, 40px);
  align-items: start;
}

.page-about .ab-table-wrap {
  border: 1px solid var(--line);
  background: rgba(11, 31, 58, 0.5);
  overflow-x: auto;
}

.page-about .ab-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-about .ab-table th {
  padding: 13px 16px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--cyan-soft);
  white-space: nowrap;
  background: rgba(18, 50, 79, 0.72);
  border-bottom: 1px solid var(--line);
}

.page-about .ab-table td {
  padding: 14px 16px;
  color: var(--text);
  border-bottom: 1px solid var(--line-soft);
}

.page-about .ab-table td.num {
  font-family: var(--font-mono);
  color: var(--amber);
  letter-spacing: 0.04em;
}

.page-about .ab-table tbody tr {
  transition: background 160ms var(--ease);
}

.page-about .ab-table tbody tr:hover {
  background: rgba(34, 224, 240, 0.07);
}

.page-about .ab-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-about .ab-venue-visual {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--ink-800);
}

.page-about .ab-venue-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.8) contrast(1.05) brightness(0.85);
}

.page-about .ab-venue-visual figcaption {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cyan-soft);
  text-shadow: 0 1px 6px rgba(5, 13, 26, 0.9);
}

.page-about .ab-venue-note {
  margin: 22px 0 0;
  max-width: 720px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-about .ab-rules {
  border-top: 1px solid var(--line);
}

.page-about .ab-rule {
  border-bottom: 1px solid var(--line);
}

.page-about .ab-rule summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 0;
  cursor: pointer;
  list-style: none;
  font-size: clamp(16px, 1.8vw, 19px);
  color: var(--text);
}

.page-about .ab-rule summary::-webkit-details-marker {
  display: none;
}

.page-about .ab-rule summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--cyan);
  transition: color 180ms var(--ease);
}

.page-about .ab-rule[open] summary::after {
  content: "−";
  color: var(--amber);
}

.page-about .ab-rule-index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-about .ab-rule-body {
  margin: 0;
  padding: 0 0 24px 38px;
  max-width: 760px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .ab-service {
  display: grid;
  gap: clamp(28px, 4vw, 44px);
  align-items: start;
}

.page-about .ab-service-copy p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text);
}

.page-about .ab-service-copy p:last-child {
  margin-bottom: 0;
}

.page-about .ab-service-card {
  padding: 20px 18px 22px;
  border: 1px solid var(--line);
  background: rgba(18, 50, 79, 0.55);
}

.page-about .ab-contact {
  margin: 0 0 18px;
}

.page-about .ab-contact > div {
  padding: 10px 0;
  border-bottom: 1px dashed var(--line-soft);
}

.page-about .ab-contact > div:last-child {
  border-bottom: 0;
}

.page-about .ab-contact dt {
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-about .ab-contact dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--text);
  word-break: break-word;
}

.page-about .ab-chip {
  display: inline-block;
  padding: 6px 10px;
  border: 1px solid rgba(255, 180, 58, 0.5);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-about .ab-service-link {
  margin: 18px 0 0;
  font-size: 14px;
}

.page-about .ab-service-link a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
}

.page-about .ab-service-link a:hover {
  border-color: var(--cyan);
}

.page-about .ab-cta {
  padding-block: clamp(48px, 7vw, 88px);
  border-top: 1px solid var(--line);
  background: linear-gradient(120deg, rgba(18, 50, 79, 0.55), rgba(5, 13, 26, 0) 65%);
}

.page-about .ab-cta-inner {
  display: grid;
  gap: 24px;
}

.page-about .ab-cta-copy {
  margin: 16px 0 0;
  max-width: 620px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-about .ab-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

@media (min-width: 640px) {
  .page-about .ab-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .ab-compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .ab-hero-grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(240px, 0.62fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-about .ab-origin {
    grid-template-columns: minmax(0, 1.5fr) minmax(260px, 0.7fr);
    gap: clamp(32px, 5vw, 64px);
  }

  .page-about .ab-team-grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }

  .page-about .ab-service {
    grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
  }

  .page-about .ab-cta-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }

  .page-about .ab-cta-actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1020px) {
  .page-about .ab-venue-grid {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 0.46fr);
    gap: clamp(24px, 3vw, 36px);
  }
}

@media (min-width: 1080px) {
  .page-about .ab-stats {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-about .ab-stats li {
    border-right: 1px solid var(--line-soft);
    padding-right: 18px;
  }

  .page-about .ab-stats li:last-child {
    border-right: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-tl-card,
  .page-about .ab-timeline li::before,
  .page-about .ab-ring-seg,
  .page-about .ab-plate::after {
    transition: none;
  }

  .page-about .ab-timeline li:hover .ab-tl-card {
    transform: none;
  }
}
<<<END>>>