.page-about {
  --ab-rail: 196px;
  --ab-hair: rgba(140, 145, 135, 0.38);
  --ab-ink-soft: rgba(244, 240, 230, 0.82);
  background: var(--porcelain);
  color: var(--ink-black);
  font-family: var(--font-body);
  line-height: 1.85;
}

.page-about .ab-hero {
  position: relative;
  padding: clamp(24px, 4vw, 52px) 0 clamp(36px, 6vw, 80px);
}

.page-about .ab-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}

.page-about .ab-hero__eyebrow {
  color: var(--cinnabar);
}

.page-about .ab-hero__title {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(2.1rem, 7.2vw, 4.4rem);
  line-height: 1.14;
  letter-spacing: -0.01em;
  margin: 0.35em 0 0.55em;
}

.page-about .ab-hero__title span {
  display: block;
  color: var(--ink-green);
}

.page-about .ab-hero__lede {
  max-width: 60ch;
  color: var(--slate);
  margin: 0;
}

.page-about .ab-hero__facts {
  list-style: none;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(118px, 1fr));
  gap: 1px;
  background: var(--ab-hair);
  border-top: 1px solid var(--ab-hair);
}

.page-about .ab-hero__facts li {
  background: var(--porcelain);
  padding: 16px 12px 18px;
}

.page-about .ab-hero__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 3vw, 1.8rem);
  line-height: 1.2;
  color: var(--ink-green);
}

.page-about .ab-hero__lab {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--slate);
}

.page-about .ab-hero__side {
  background: var(--ink-green);
  color: var(--porcelain);
  padding: clamp(22px, 3vw, 34px) clamp(20px, 3vw, 32px);
}

.page-about .ab-idx__head {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--sand);
}

.page-about .ab-idx__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .ab-idx__item + .ab-idx__item {
  border-top: 1px solid rgba(244, 240, 230, 0.16);
}

.page-about .ab-idx__item a {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 2px 10px;
  align-items: baseline;
  padding: 12px 0;
  color: inherit;
  text-decoration: none;
}

.page-about .ab-idx__no {
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  padding: 1px 6px;
  background: var(--sand);
  color: var(--ink-green);
}

.page-about .ab-idx__name {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 1.08rem;
  letter-spacing: 0.02em;
}

.page-about .ab-idx__note {
  grid-column: 2;
  font-size: 12px;
  line-height: 1.6;
  color: rgba(244, 240, 230, 0.66);
}

.page-about .ab-idx__item a:hover .ab-idx__name,
.page-about .ab-idx__item a:focus-visible .ab-idx__name {
  color: var(--sand);
}

.page-about .ab-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-about .ab-rail {
  padding: 16px 0 20px;
  border-top: 1px solid var(--ab-hair);
}

.page-about .ab-rail__head {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--cinnabar);
}

.page-about .ab-rail__list {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 16px;
  overflow-x: auto;
}

.page-about .ab-rail__item {
  flex: 0 0 auto;
}

.page-about .ab-rail__item a {
  display: block;
  text-decoration: none;
  color: var(--slate);
  padding: 2px 0;
}

.page-about .ab-rail__year {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-green);
}

.page-about .ab-rail__name {
  display: block;
  font-size: 12px;
  white-space: nowrap;
  color: var(--slate);
}

.page-about .ab-rail__item a:hover .ab-rail__year,
.page-about .ab-rail__item a:focus-visible .ab-rail__year {
  color: var(--cinnabar);
}

.page-about .ab-col {
  min-width: 0;
}

.page-about .ab-sec {
  padding: clamp(34px, 5.5vw, 72px) 0;
  scroll-margin-top: calc(var(--cmd-h) + 20px);
}

.page-about .ab-sec + .ab-sec {
  border-top: 1px solid var(--ab-hair);
}

.page-about .ab-sec--ink {
  background: var(--ink-green);
  color: var(--porcelain);
  padding: clamp(28px, 4vw, 54px) clamp(20px, 3.4vw, 44px);
  border-top: 0;
}

.page-about .ab-sec--paper {
  background: var(--paper-yellow);
  padding: clamp(28px, 4vw, 54px) clamp(20px, 3.4vw, 44px);
  border-top: 0;
}

.page-about .ab-sec__head {
  max-width: 66ch;
}

.page-about .ab-sec__no {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--cinnabar);
}

.page-about .ab-sec--ink .ab-sec__no {
  color: var(--sand);
}

.page-about .ab-sec__title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.55rem, 3.4vw, 2.5rem);
  line-height: 1.26;
  letter-spacing: -0.005em;
  margin: 0.28em 0 0.5em;
}

.page-about .ab-sec__sub {
  margin: 0;
  color: var(--slate);
  max-width: 54ch;
}

.page-about .ab-sec--ink .ab-sec__sub {
  color: var(--ab-ink-soft);
}

.page-about .ab-fig {
  margin: clamp(24px, 3.6vw, 40px) 0 0;
}

.page-about .ab-fig .fig__frame {
  background: var(--mist);
}

.page-about .ab-fig .fig__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .ab-fig .fig__cap {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--slate);
}

.page-about .fig__cap-no {
  display: inline-block;
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cinnabar);
}

.page-about .ab-time {
  position: relative;
  list-style: none;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0 0 0 28px;
}

.page-about .ab-time::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--hair);
}

.page-about .ab-time__item {
  position: relative;
  padding-bottom: clamp(22px, 3.2vw, 38px);
  scroll-margin-top: calc(var(--cmd-h) + 24px);
}

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

.page-about .ab-time__item::before {
  content: "";
  position: absolute;
  left: -32px;
  top: 11px;
  width: 8px;
  height: 8px;
  background: var(--sand);
}

.page-about .ab-time__item:last-child::before {
  background: var(--cinnabar);
}

.page-about .ab-time__year {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--cinnabar);
}

.page-about .ab-time__title {
  margin: 4px 0 4px;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.2rem, 2.4vw, 1.55rem);
  line-height: 1.35;
}

.page-about .ab-time__text {
  margin: 0;
  max-width: 56ch;
  color: var(--slate);
}

.page-about .ab-net {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.6vw, 42px);
  margin-top: clamp(20px, 3vw, 32px);
}

.page-about .ab-net__text p {
  margin: 0 0 14px;
  max-width: 48ch;
  color: var(--ab-ink-soft);
}

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

.page-about .ab-net__stat {
  font-size: 14px;
  color: rgba(244, 240, 230, 0.66);
}

.page-about .ab-net__statnum {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  color: var(--sand);
  margin-right: 6px;
}

.page-about .ab-net__frame {
  position: relative;
  padding: 14px;
  background: rgba(18, 59, 46, 0.45);
  border: 1px solid rgba(200, 164, 92, 0.42);
}

.page-about .ab-net__svg {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  color: var(--sand);
}

.page-about .ab-net__mark {
  fill: var(--cinnabar);
}

.page-about .ab-net__ring {
  fill: none;
  stroke: var(--sand);
  stroke-width: 1;
}

.page-about .ab-net__hint {
  position: absolute;
  left: 14px;
  bottom: 14px;
  padding: 4px 8px;
  background: var(--sand);
  color: var(--ink-green);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.24s ease, transform 0.24s ease;
}

.page-about .ab-net__frame:hover .ab-net__hint,
.page-about .ab-net__frame:focus-within .ab-net__hint,
.page-about .ab-net__frame:focus-visible .ab-net__hint {
  opacity: 1;
  transform: translateY(0);
}

.page-about .ab-net__cap {
  margin: 10px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: rgba(244, 240, 230, 0.62);
}

.page-about .ab-net__cap .fig__cap-no {
  color: var(--sand);
}

.page-about .ab-notes {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.6vw, 46px);
  margin-top: clamp(22px, 3vw, 36px);
}

.page-about .ab-note {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 0 14px;
  padding: 16px 0;
  border-top: 1px solid rgba(21, 23, 19, 0.22);
}

.page-about .ab-note:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-about .ab-note__no {
  grid-row: 1 / span 2;
  padding-top: 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cinnabar);
}

.page-about .ab-note h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 1.28rem;
  line-height: 1.4;
}

.page-about .ab-note p {
  margin: 6px 0 0;
  max-width: 46ch;
  color: var(--ink-black);
  opacity: 0.78;
}

.page-about .ab-notes__more {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid rgba(21, 23, 19, 0.22);
  font-size: 14px;
  color: var(--ink-black);
  opacity: 0.8;
}

.page-about .ab-notes__more a {
  color: var(--cinnabar);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .ab-team {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 2.6vw, 30px);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-about .ab-team__card {
  border-top: 2px solid var(--sand);
  padding-top: 14px;
}

.page-about .ab-team__no {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cinnabar);
}

.page-about .ab-team__card h3 {
  margin: 8px 0 6px;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 1.3rem;
}

.page-about .ab-team__card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--slate);
}

.page-about .ab-sla {
  list-style: none;
  margin: clamp(24px, 3.4vw, 38px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: var(--ab-hair);
  border: 1px solid var(--ab-hair);
}

.page-about .ab-sla li {
  background: var(--mist);
  padding: 16px 14px;
}

.page-about .ab-sla__k {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--moss);
  margin-bottom: 4px;
}

.page-about .ab-sla__v {
  display: block;
  font-size: 0.95rem;
  color: var(--ink-black);
}

.page-about .ab-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 24px);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-about .ab-flow__step {
  border-top: 1px solid var(--cinnabar);
  padding-top: 14px;
}

.page-about .ab-flow__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cinnabar);
}

.page-about .ab-flow__step h3 {
  margin: 6px 0 4px;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 1.22rem;
}

.page-about .ab-flow__step p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--slate);
}

.page-about .ab-guard {
  margin-top: clamp(22px, 3vw, 34px);
  padding: 18px 20px;
  background: var(--mist);
  border-left: 3px solid var(--moss);
}

.page-about .ab-guard p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--slate);
}

.page-about .ab-guard strong {
  color: var(--ink-black);
  font-weight: 500;
}

.page-about .ab-guard a {
  color: var(--cinnabar);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .ab-sec--start {
  padding-bottom: clamp(40px, 6vw, 80px);
}

.page-about .ab-start {
  list-style: none;
  margin: clamp(24px, 3.4vw, 38px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--ab-hair);
  border: 1px solid var(--ab-hair);
}

.page-about .ab-start__item {
  background: var(--mist);
  padding: clamp(20px, 3vw, 30px);
  display: flex;
  flex-direction: column;
}

.page-about .ab-start__no {
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  color: var(--sand);
}

.page-about .ab-start__item h3 {
  margin: 12px 0 6px;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 1.25rem;
}

.page-about .ab-start__item p {
  margin: 0 0 18px;
  font-size: 0.95rem;
  color: var(--slate);
}

.page-about .ab-start__btn {
  margin-top: auto;
  align-self: flex-start;
}

.page-about .ab-start__more {
  margin: clamp(20px, 3vw, 30px) 0 0;
  font-size: 14px;
  color: var(--slate);
}

.page-about .ab-start__more a {
  color: var(--cinnabar);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .ab-end {
  margin-top: clamp(28px, 4vw, 44px);
  padding-top: 20px;
  border-top: 1px solid var(--ab-hair);
}

.page-about .ab-totop {
  text-decoration: none;
}

.page-about .ab-rail__item a,
.page-about .ab-idx__item a,
.page-about .ab-notes__more a,
.page-about .ab-guard a,
.page-about .ab-start__more a {
  transition: color 0.2s ease;
}

.page-about .ab-rail__item a:focus-visible,
.page-about .ab-idx__item a:focus-visible,
.page-about .ab-notes__more a:focus-visible,
.page-about .ab-guard a:focus-visible,
.page-about .ab-start__more a:focus-visible {
  outline: 2px solid var(--cinnabar);
  outline-offset: 3px;
}

@media (min-width: 760px) {
  .page-about .ab-net {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }

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

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

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

@media (min-width: 900px) {
  .page-about .ab-hero__grid {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 0.68fr);
  }

  .page-about .ab-hero__side {
    padding: clamp(30px, 3.4vw, 44px) clamp(24px, 2.6vw, 34px) clamp(30px, 3.4vw, 44px) clamp(42px, 5vw, 68px);
    clip-path: polygon(20% 0, 100% 0, 100% 100%, 0 100%);
  }

  .page-about .ab-layout {
    grid-template-columns: var(--ab-rail) minmax(0, 1fr);
    gap: clamp(24px, 4vw, 58px);
    align-items: start;
  }

  .page-about .ab-rail {
    position: sticky;
    top: calc(var(--cmd-h) + 28px);
    padding: 4px 0 0;
    border-top: 0;
    border-left: 1px solid var(--ab-hair);
    padding-left: 16px;
  }

  .page-about .ab-rail__list {
    display: block;
    overflow: visible;
  }

  .page-about .ab-rail__item + .ab-rail__item {
    margin-top: 2px;
  }

  .page-about .ab-rail__item a {
    padding: 6px 0;
  }

  .page-about .ab-rail__name {
    white-space: normal;
  }

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

  .page-about .ab-notes__fig {
    margin-top: clamp(40px, 5vw, 64px);
  }

  .page-about .ab-sec--ink,
  .page-about .ab-sec--paper {
    padding-left: clamp(32px, 4vw, 56px);
    padding-right: clamp(32px, 4vw, 56px);
  }
}

@media (min-width: 1200px) {
  .page-about .ab-time__text {
    max-width: 62ch;
  }
}

@media print {
  .page-about {
    background: #fff;
  }

  .page-about .ab-rail,
  .page-about .ab-totop,
  .page-about .ab-hero__side {
    display: none;
  }

  .page-about .ab-sec--ink,
  .page-about .ab-sec--paper {
    background: none;
    color: var(--ink-black);
    padding-left: 0;
    padding-right: 0;
  }

  .page-about .ab-net__text p,
  .page-about .ab-net__stat,
  .page-about .ab-net__cap,
  .page-about .ab-sec--ink .ab-sec__sub {
    color: var(--ink-black);
  }

  .page-about .ab-time__item,
  .page-about .ab-sec,
  .page-about .ab-flow__step {
    break-inside: avoid;
  }
}
<<<PAGE_CSS_END>>>