.page-about {
  --about-rail: 216px;
  background: var(--ink-900);
  color: var(--cream-100);
  font-family: var(--font-body);
}

.page-about a {
  color: inherit;
}

.page-about .about-hero {
  position: relative;
  padding: clamp(22px, 4vw, 44px) 0 clamp(38px, 6vw, 72px);
  background:
    radial-gradient(110% 80% at 88% 0%, rgba(200, 255, 61, 0.10), transparent 62%),
    linear-gradient(158deg, var(--ink-950) 0%, var(--ink-900) 58%, var(--ink-800) 100%);
  border-bottom: 1px solid var(--line-500);
  overflow: hidden;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: -6%;
  bottom: -1px;
  width: 58%;
  height: 64px;
  background: var(--ink-800);
  clip-path: polygon(16% 100%, 100% 0, 100% 100%);
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}

.page-about .about-hero h1 {
  margin: 14px 0 18px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 6.2vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.015em;
  color: var(--cream-100);
}

.page-about .about-hero .lede {
  margin: 0;
  max-width: 34em;
  color: var(--sage-300);
  line-height: 1.78;
}

.page-about .about-hero__stats {
  display: flex;
  flex-wrap: wrap;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-500);
}

.page-about .about-hero__stats li {
  flex: 1 1 110px;
  padding: 14px 14px 4px 0;
  border-right: 1px solid var(--line-500);
}

.page-about .about-hero__stats li:last-child {
  border-right: 0;
  padding-right: 0;
}

.page-about .about-hero__num {
  display: block;
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 700;
  line-height: 1;
  color: var(--lime-400);
}

.page-about .about-hero__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--sage-300);
  letter-spacing: 0.02em;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.page-about .about-hero__frame {
  position: relative;
  margin: 0;
  padding: 10px;
  border: 1px solid var(--line-500);
  background: var(--ink-950);
}

.page-about .about-hero__frame::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 46px;
  height: 46px;
  border-top: 2px solid var(--lime-400);
  border-left: 2px solid var(--lime-400);
  pointer-events: none;
}

.page-about .about-hero__frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(0.82) brightness(0.84);
}

.page-about .about-hero__frame figcaption {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--dim-400);
}

.page-about .about-body {
  padding: clamp(32px, 5vw, 64px) 0 clamp(48px, 7vw, 96px);
}

.page-about .about-body__grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-about .about-rail {
  border-top: 1px solid var(--line-500);
  padding-top: 14px;
}

.page-about .about-rail__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-rail__link {
  display: flex;
  gap: 8px;
  align-items: baseline;
  padding: 9px 0 9px 9px;
  border-left: 2px solid transparent;
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  color: var(--sage-300);
  transition: color var(--t-fast), border-color var(--t-fast), background var(--t-fast);
}

.page-about .about-rail__link .mono {
  font-size: 11px;
  color: var(--orange-300);
}

.page-about .about-rail__link:hover,
.page-about .about-rail__link:focus-visible {
  color: var(--cream-100);
  border-left-color: var(--lime-400);
  background: var(--ink-800);
  outline: none;
}

.page-about .about-chapter {
  padding: clamp(26px, 4vw, 40px) 0 clamp(30px, 5vw, 52px);
  border-top: 1px solid var(--line-500);
}

.page-about .about-content > .about-chapter:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-about .about-chapter__head {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 20px;
}

.page-about .about-chapter__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(20px, 3vw, 30px);
  line-height: 1.05;
  color: var(--lime-400);
}

.page-about .about-chapter__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.4vw, 38px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--cream-100);
}

.page-about .about-chapter__body {
  display: grid;
  gap: 16px;
}

.page-about .about-chapter__body p {
  margin: 0;
  max-width: 40em;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.8;
  color: var(--sage-300);
}

.page-about .about-chapter__figure {
  margin: 0 0 24px;
  border: 1px solid var(--line-500);
  background: var(--ink-950);
}

.page-about .about-chapter__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.78);
}

.page-about .about-facts {
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-500);
}

.page-about .about-facts li {
  display: grid;
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-500);
  font-size: 15px;
  line-height: 1.6;
}

.page-about .about-facts__k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--orange-300);
}

.page-about .about-facts__v {
  color: var(--sage-300);
  max-width: 38em;
}

.page-about .about-timeline {
  margin: 0;
  padding: 0 0 0 22px;
  list-style: none;
  border-left: 1px solid var(--line-500);
}

.page-about .about-stage {
  position: relative;
  padding-bottom: 24px;
}

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

.page-about .about-stage::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 4px;
  width: 9px;
  height: 9px;
  background: var(--ink-900);
  border: 1px solid var(--lime-400);
  transform: rotate(45deg);
  transition: background var(--t-mid), border-color var(--t-mid);
}

.page-about .about-stage:hover::before {
  background: var(--lime-400);
}

.page-about .about-stage__time {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lime-400);
}

.page-about .about-stage__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2.2vw, 22px);
  line-height: 1.3;
  color: var(--cream-100);
}

.page-about .about-stage p:last-child {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--sage-300);
}

.page-about .about-team {
  margin-top: 20px;
  border-top: 1px solid var(--line-500);
}

.page-about .about-team .accordion__item {
  border-bottom: 1px solid var(--line-500);
}

.page-about .about-team__trigger {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 16px 0;
  background: transparent;
  border: 0;
  text-align: left;
  color: var(--cream-100);
  font-family: var(--font-body);
  font-size: 16px;
  cursor: pointer;
  transition: color var(--t-fast);
}

.page-about .about-team__trigger:hover {
  color: var(--lime-400);
}

.page-about .about-team__trigger:focus-visible {
  outline: 2px solid var(--lime-400);
  outline-offset: 2px;
}

.page-about .about-team__role {
  margin-left: auto;
  font-size: 12px;
  color: var(--orange-300);
}

.page-about .about-team__sign {
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--lime-400);
}

.page-about .about-team__sign::before {
  content: "+";
}

.page-about .about-team__trigger[aria-expanded="true"] .about-team__sign::before {
  content: "\2212";
}

.page-about .about-team__panel {
  max-width: 42em;
  padding: 0 0 18px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--sage-300);
}

.page-about .about-eco__map {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  margin-top: 18px;
  border: 1px solid var(--line-500);
  background: var(--ink-950);
}

.page-about .about-eco__lines line {
  stroke: var(--line-500);
  stroke-width: 1;
  transition: stroke var(--t-mid);
}

.page-about .about-eco__map:hover .about-eco__lines line {
  stroke: var(--lime-400);
}

.page-about .about-eco__node {
  fill: var(--ink-800);
  stroke: var(--line-500);
  transition: stroke var(--t-fast);
}

.page-about .about-eco__map:hover .about-eco__node {
  stroke: var(--orange-500);
}

.page-about .about-eco__hub {
  fill: var(--lime-400);
}

.page-about .about-eco__label {
  fill: var(--sage-300);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
}

.page-about .about-eco__hub-label {
  fill: var(--ink-950);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
}

.page-about .about-stats {
  display: grid;
  gap: 1px;
  margin-top: 22px;
  background: var(--line-500);
  border: 1px solid var(--line-500);
}

.page-about .about-stat {
  padding: 18px 16px 20px;
  background: var(--ink-800);
  transition: background var(--t-fast);
}

.page-about .about-stat:hover {
  background: var(--ink-700);
}

.page-about .about-stat__num {
  display: block;
  font-size: clamp(24px, 3.2vw, 32px);
  font-weight: 700;
  line-height: 1.05;
  color: var(--lime-400);
}

.page-about .about-stat__label {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--cream-100);
}

.page-about .about-stat__note {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--dim-400);
  transition: color var(--t-fast);
}

.page-about .about-stat:hover .about-stat__note {
  color: var(--sage-300);
}

.page-about .about-columns {
  display: grid;
  gap: 1px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  background: var(--line-500);
  border: 1px solid var(--line-500);
}

.page-about .about-columns li {
  padding: 16px;
  background: var(--ink-800);
  transition: background var(--t-fast);
}

.page-about .about-columns li:hover {
  background: var(--ink-700);
}

.page-about .about-columns__k {
  display: block;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--orange-300);
}

.page-about .about-columns__title {
  margin: 8px 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.3;
  color: var(--cream-100);
}

.page-about .about-columns p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--sage-300);
}

.page-about .about-chapter--next {
  border-top: 1px solid var(--lime-400);
}

.page-about .about-next__grid {
  display: grid;
  gap: 1px;
  background: var(--line-500);
  border: 1px solid var(--line-500);
}

.page-about .about-next__card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px 20px;
  background: var(--ink-800);
  text-decoration: none;
  transition: background var(--t-fast), transform var(--t-fast);
}

.page-about .about-next__card:hover,
.page-about .about-next__card:focus-visible {
  background: var(--ink-700);
  outline: none;
}

.page-about .about-next__card:focus-visible {
  box-shadow: inset 0 0 0 2px var(--lime-400);
}

.page-about .about-next__k {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--orange-300);
}

.page-about .about-next__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 21px;
  line-height: 1.2;
  color: var(--cream-100);
}

.page-about .about-next__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--sage-300);
}

@media (min-width: 620px) {
  .page-about .about-facts li {
    grid-template-columns: 8.5em minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }

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

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

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

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

@media (min-width: 920px) {
  .page-about .about-body__grid {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-rail {
    position: sticky;
    top: 92px;
  }

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

  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    align-items: end;
  }

  .page-about .about-chapter__figure img {
    aspect-ratio: 16 / 9;
  }

  .page-about .about-chapter__figure--wide img {
    aspect-ratio: 2 / 1;
  }
}

@media (min-width: 1020px) {
  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-columns {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-next__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}
<<<END>>>