.page-about {
  --ab-gap: clamp(22px, 3.6vw, 44px);
  --ab-year-size: clamp(1.75rem, 4.4vw, 3rem);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  font-family: var(--font-display);
  font-weight: 800;
  margin: 0;
}

.page-about .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.page-about .ab-hero {
  position: relative;
  padding: clamp(18px, 3vw, 32px) 0 clamp(30px, 5vw, 60px);
  border-bottom: 1px solid var(--line-faint);
  overflow: hidden;
}

.page-about .ab-hero::before {
  content: "";
  position: absolute;
  right: -14%;
  bottom: -46%;
  width: 68%;
  height: 128%;
  background: linear-gradient(158deg, rgba(23, 62, 51, 0.9), rgba(23, 62, 51, 0) 72%);
  transform: rotate(-9deg);
  pointer-events: none;
}

.page-about .ab-hero-grid {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  color: var(--line-faint);
  opacity: 0.75;
  pointer-events: none;
}

.page-about .ab-anno {
  display: none;
}

.page-about .ab-hero-inner {
  position: relative;
  display: grid;
  gap: var(--ab-gap);
}

.page-about .ab-hero h1 {
  margin-top: 14px;
  font-size: clamp(2.15rem, 8vw, 4.9rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
}

.page-about .ab-lead {
  margin: 20px 0 0;
  max-width: 46ch;
  font-size: clamp(14.5px, 1.7vw, 17px);
  line-height: 1.8;
  color: var(--muted);
}

.page-about .ab-hero-facts {
  display: grid;
  border-top: 1px solid var(--line-soft);
}

.page-about .ab-fact {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line-faint);
}

.page-about .ab-fact-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.15rem, 3vw, 1.55rem);
  letter-spacing: -0.02em;
  color: var(--lime);
}

.page-about .ab-fact-label {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-align: right;
}

.page-about .ab-mission-inner {
  display: grid;
  gap: var(--ab-gap);
}

.page-about .ab-mission-copy h2,
.page-about .ab-sec-head h2 {
  font-size: clamp(1.45rem, 4.4vw, 2.5rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 12px 0 0;
}

.page-about .ab-mission-copy p,
.page-about .ab-sec-lead,
.page-about .ab-cta-copy p {
  margin: 16px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-about .ab-checks {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 13px;
}

.page-about .ab-checks li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-about .ab-checks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 11px;
  height: 2px;
  background: var(--lime);
}

.page-about .ab-figure {
  margin: 0;
  position: relative;
  border: 1px solid var(--line-faint);
  background: var(--panel);
}

.page-about .ab-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .ab-figure .media-caption {
  margin: 0;
  padding: 10px 14px;
  border-top: 1px solid var(--line-faint);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: var(--muted);
}

.page-about .ab-sec-head {
  max-width: 62ch;
  margin-bottom: clamp(20px, 3.4vw, 34px);
}

.page-about .ab-time {
  background: linear-gradient(180deg, rgba(16, 28, 24, 0.9), rgba(11, 15, 13, 0) 62%);
}

.page-about .ab-year-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(22px, 3.4vw, 34px);
}

.page-about .ab-year-jump a {
  padding: 6px 12px;
  border: 1px solid var(--line-soft);
  background: var(--panel);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--paper);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-about .ab-year-jump a:hover,
.page-about .ab-year-jump a:focus-visible {
  border-color: var(--lime);
  color: var(--lime);
}

.page-about .ab-track {
  position: relative;
}

.page-about .ab-node {
  position: relative;
  display: grid;
  gap: 8px;
  padding: 0 0 clamp(22px, 3.2vw, 34px) 24px;
  border-left: 1px solid var(--line-soft);
  scroll-margin-top: 96px;
}

.page-about .ab-node::before {
  content: "";
  position: absolute;
  left: -3.5px;
  top: 10px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 3px rgba(200, 255, 74, 0.14);
}

.page-about .ab-node-year {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--ab-year-size);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--paper);
}

.page-about .ab-node-month {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--orange);
  border: 1px solid rgba(255, 122, 47, 0.5);
  padding: 2px 6px;
}

.page-about .ab-node-body h3 {
  font-size: clamp(1.02rem, 2.4vw, 1.22rem);
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.page-about .ab-node-body p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}

.page-about .ab-figure--wide {
  margin-top: clamp(20px, 3.4vw, 34px);
}

.page-about .ab-team-inner {
  display: grid;
  gap: var(--ab-gap);
}

.page-about .ab-team-copy h2 {
  font-size: clamp(1.45rem, 4.4vw, 2.5rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 12px 0 0;
}

.page-about .ab-team-copy > p {
  margin: 16px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-about .ab-team-figure {
  margin-top: 24px;
  border-top: 1px solid var(--line-soft);
}

.page-about .ab-team-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 16px;
  align-items: baseline;
  padding: clamp(14px, 2vw, 20px) 0;
  border-bottom: 1px solid var(--line-faint);
  transition: border-color 0.2s var(--ease);
}

.page-about .ab-team-row:hover,
.page-about .ab-team-row:focus-within {
  border-bottom-color: var(--lime);
}

.page-about .ab-team-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  line-height: 1;
  color: var(--cyan);
}

.page-about .ab-team-role {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14.5px;
  letter-spacing: 0.01em;
}

.page-about .ab-team-desc {
  grid-column: 1 / -1;
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-about .ab-eco-strip {
  display: grid;
  gap: 1px;
  background: var(--line-faint);
  border: 1px solid var(--line-faint);
}

.page-about .ab-eco-cell {
  display: grid;
  gap: 8px;
  padding: clamp(16px, 2.6vw, 26px);
  background: var(--panel);
}

.page-about .ab-eco-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.7rem, 5vw, 2.6rem);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--lime);
}

.page-about .ab-eco-label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13.5px;
}

.page-about .ab-eco-cell p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-about .ab-eco-lower {
  display: grid;
  gap: var(--ab-gap);
  margin-top: clamp(22px, 3.4vw, 34px);
}

.page-about .ab-tags {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .ab-tags li {
  padding: 7px 13px;
  border: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--paper);
  background: rgba(23, 62, 51, 0.35);
}

.page-about .ab-honor {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .ab-honor li {
  padding-left: 14px;
  border-left: 2px solid var(--cyan);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-about .ab-honor .num {
  color: var(--paper);
  margin-right: 8px;
}

.page-about .ab-principle-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  counter-reset: none;
}

.page-about .ab-principle {
  display: grid;
  gap: 6px;
  padding: clamp(16px, 2.4vw, 24px) 0;
  border-top: 1px solid var(--line-faint);
}

.page-about .ab-principle:last-child {
  border-bottom: 1px solid var(--line-faint);
}

.page-about .ab-principle-idx {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.22em;
  color: var(--cyan);
}

.page-about .ab-principle h3 {
  font-size: clamp(1.02rem, 2.6vw, 1.3rem);
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.page-about .ab-principle p {
  margin: 0;
  font-size: 13.8px;
  line-height: 1.78;
  color: var(--muted);
}

.page-about .ab-cta {
  padding: clamp(34px, 6vw, 72px) 0 0;
}

.page-about .ab-cta-inner {
  display: grid;
  gap: clamp(20px, 3.4vw, 34px);
  padding: clamp(26px, 4vw, 48px);
  border: 1px solid var(--line-soft);
  background: linear-gradient(137deg, var(--zone), var(--panel) 68%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%);
}

.page-about .ab-cta-copy h2 {
  font-size: clamp(1.35rem, 4vw, 2.2rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin-top: 12px;
}

.page-about .ab-cta-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-about .ab-cta-link {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(75, 224, 198, 0.4);
  padding-bottom: 2px;
}

.page-about .ab-cta-link:hover,
.page-about .ab-cta-link:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

@media (min-width: 760px) {
  .page-about .ab-team-row {
    grid-template-columns: 92px 172px minmax(0, 1fr);
    align-items: baseline;
    gap: 0 20px;
  }

  .page-about .ab-team-desc {
    grid-column: auto;
    margin-top: 0;
  }

  .page-about .ab-eco-lower {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
}

@media (min-width: 900px) {
  .page-about .ab-hero-inner {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 0.8fr);
    align-items: end;
  }

  .page-about .ab-mission-inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: start;
  }

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

  .page-about .ab-team-media {
    margin-top: 46px;
  }

  .page-about .ab-node {
    grid-template-columns: 170px minmax(0, 1fr);
    column-gap: clamp(18px, 2.6vw, 36px);
    padding-left: clamp(18px, 2.6vw, 30px);
  }

  .page-about .ab-node-year {
    font-size: clamp(2rem, 2.9vw, 2.9rem);
  }

  .page-about .ab-eco-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .ab-principle {
    grid-template-columns: 74px minmax(0, 0.85fr) minmax(0, 1.15fr);
    column-gap: 24px;
    align-items: start;
  }

  .page-about .ab-principle p {
    margin-top: 4px;
  }

  .page-about .ab-cta-inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
  }

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

@media (min-width: 1100px) {
  .page-about .ab-anno {
    display: block;
    position: absolute;
    top: clamp(28px, 4vw, 56px);
    left: 10px;
    writing-mode: vertical-rl;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.34em;
    color: var(--line-soft);
    z-index: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-year-jump a,
  .page-about .ab-team-row {
    transition: none;
  }
}
<<<END>>>