.page-about {
  --about-rail: 176px;
  color: var(--paper);
  background:
    radial-gradient(760px 380px at 78% -60px, rgba(30, 122, 85, 0.34), transparent 72%),
    var(--night);
  padding-bottom: clamp(48px, 8vw, 96px);
  overflow-x: clip;
}

.page-about .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding-top: clamp(18px, 3vw, 30px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mid);
}

.page-about .breadcrumb a {
  color: var(--clock);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-about .breadcrumb a:hover,
.page-about .breadcrumb a:focus-visible {
  color: var(--whistle);
}

.page-about .about-hero {
  padding-top: clamp(26px, 4.5vw, 48px);
}

.page-about .about-hero__title {
  margin: 14px 0 20px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(36px, 8.4vw, 78px);
  line-height: 0.98;
  letter-spacing: -0.02em;
}

.page-about .about-hero__title em {
  font-style: normal;
  color: var(--whistle);
}

.page-about .about-hero__lead {
  max-width: 34em;
  margin: 0;
  color: var(--ink-dim);
  font-size: 16px;
  line-height: 1.8;
}

.page-about .about-facts {
  list-style: none;
  margin: 30px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 14px;
}

.page-about .about-facts li {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.page-about .about-facts__n {
  font-family: var(--font-mono);
  font-size: clamp(24px, 5vw, 34px);
  line-height: 1;
  color: var(--whistle);
}

.page-about .about-facts__k {
  font-size: 13px;
  color: var(--ink-dim);
}

.page-about .about-body {
  margin-top: clamp(34px, 6vw, 64px);
  display: grid;
  gap: var(--gap);
}

.page-about .about-toc {
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.page-about .about-toc__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mid);
}

.page-about .about-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
  padding-bottom: 4px;
}

.page-about .about-toc__link {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 7px 11px;
  white-space: nowrap;
  font-size: 13px;
  color: var(--ink-dim);
  text-decoration: none;
  border: 1px solid var(--line);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease),
    background var(--dur) var(--ease);
}

.page-about .about-toc__link .num {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--whistle);
}

.page-about .about-toc__link:hover,
.page-about .about-toc__link:focus-visible {
  color: var(--paper);
  border-color: var(--whistle);
  background: rgba(242, 206, 27, 0.08);
}

.page-about .about-sec {
  margin-top: clamp(34px, 5.5vw, 60px);
  padding-top: clamp(30px, 5vw, 54px);
  border-top: 1px solid var(--line-soft);
}

.page-about .about-sec:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.page-about .section-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 5vw, 38px);
  line-height: 1.06;
  letter-spacing: -0.01em;
  margin: 8px 0 14px;
}

.page-about .about-sec__lead {
  max-width: 38em;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--ink-dim);
}

.page-about .timeline {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  position: relative;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 14px;
  bottom: 14px;
  width: 1px;
  background: var(--line);
}

.page-about .timeline__item {
  position: relative;
  padding-left: 32px;
}

.page-about .timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 13px;
  height: 13px;
  background: var(--field);
  border: 1px solid var(--whistle);
}

.page-about .phase__sum {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 10px;
  padding: 9px 0;
  cursor: pointer;
  list-style: none;
}

.page-about .phase__sum::-webkit-details-marker {
  display: none;
}

.page-about .phase__sum::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--mid);
  transition: color var(--dur) var(--ease);
}

.page-about .phase[open] .phase__sum::after {
  content: "−";
  color: var(--whistle);
}

.page-about .phase__sum:hover .phase__no,
.page-about .phase__sum:focus-visible .phase__no {
  background: var(--flare);
  color: var(--paper);
}

.page-about .phase__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 2px 6px;
  background: var(--whistle);
  color: var(--shade);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-about .phase__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(16px, 2.6vw, 19px);
  letter-spacing: 0;
}

.page-about .phase__body {
  max-width: 40em;
  padding: 0 0 14px;
  font-size: 15px;
  line-height: 1.76;
  color: var(--ink-dim);
}

.page-about .phase__body p {
  margin: 0 0 8px;
}

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

.page-about .about-media {
  margin: clamp(20px, 3vw, 30px) 0 clamp(22px, 3vw, 32px);
  border: 1px solid var(--line);
}

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

.page-about .about-media figcaption {
  padding: 9px 12px;
  font-size: 12px;
  color: var(--mid);
  border-top: 1px solid var(--line-soft);
}

.page-about .about-media--tail {
  margin-bottom: 0;
}

.page-about .staff {
  margin: 22px 0 0;
  display: grid;
  gap: 22px;
}

.page-about .staff__col {
  border-top: 1px solid var(--whistle);
  padding-top: 14px;
}

.page-about .staff__kicker {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--clock);
}

.page-about .staff__name {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
}

.page-about .staff__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--ink-dim);
}

.page-about .staff__meta {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--whistle);
}

.page-about .principles {
  margin-top: 24px;
  display: grid;
  gap: var(--gap);
}

.page-about .rule {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .rule:first-child {
  border-top: 1px solid var(--line);
}

.page-about .rule__no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--whistle);
  padding-top: 3px;
}

.page-about .rule__t {
  margin: 0 0 5px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
}

.page-about .rule__d {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--ink-dim);
}

.page-about .principles__fig {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--field);
}

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

.page-about .principles__fig figcaption {
  padding: 9px 12px;
  font-size: 12px;
  color: var(--ink-dim);
  border-top: 1px solid var(--line-soft);
}

.page-about .eco {
  margin-top: 24px;
  display: grid;
  gap: var(--gap);
}

.page-about .eco__cell {
  background: var(--field);
  border: 1px solid var(--line);
  border-left: 3px solid var(--grass);
  padding: 18px 18px 20px;
}

.page-about .eco__n {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(28px, 5vw, 40px);
  line-height: 1;
  color: var(--whistle);
}

.page-about .eco__k {
  display: block;
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.66;
  color: var(--ink-dim);
}

.page-about .ribbon {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: flex;
  overflow-x: auto;
  scrollbar-width: thin;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .ribbon__item {
  flex: 0 0 auto;
  width: 232px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 15px 18px 16px 15px;
  border-right: 1px solid var(--line-soft);
  transition: background var(--dur) var(--ease);
}

.page-about .ribbon__item:hover,
.page-about .ribbon__item:focus-within {
  background: rgba(30, 122, 85, 0.24);
}

.page-about .ribbon__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--clock);
}

.page-about .ribbon__v {
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper);
}

.page-about .ribbon__tag {
  align-self: flex-start;
  margin-top: 4px;
  padding: 2px 7px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--mid);
  border: 1px solid var(--line);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.page-about .ribbon__item:hover .ribbon__tag,
.page-about .ribbon__item:focus-within .ribbon__tag {
  background: var(--whistle);
  border-color: var(--whistle);
  color: var(--shade);
}

.page-about .marks {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
}

.page-about .marks__item {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .marks__item:first-child {
  border-top: 1px solid var(--line);
}

.page-about .marks__n {
  flex: 0 0 auto;
  min-width: 76px;
  font-family: var(--font-mono);
  font-size: clamp(20px, 4vw, 26px);
  line-height: 1;
  color: var(--whistle);
}

.page-about .marks__t {
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--ink-dim);
}

.page-about .about-cta {
  margin-top: clamp(40px, 6vw, 72px);
  padding: clamp(24px, 4vw, 40px);
  background: var(--field);
  border: 1px solid var(--line);
  border-left: 3px solid var(--whistle);
}

.page-about .about-cta__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 4vw, 30px);
  line-height: 1.1;
}

.page-about .about-cta__text {
  margin: 0;
  max-width: 36em;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--ink-dim);
}

.page-about .about-cta__links {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

@media (min-width: 700px) {
  .page-about .about-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (min-width: 760px) {
  .page-about .staff {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--gap);
  }
}

@media (min-width: 900px) {
  .page-about .principles {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: start;
    gap: clamp(24px, 3vw, 44px);
  }
}

@media (min-width: 1080px) {
  .page-about .about-body {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    align-items: start;
    gap: clamp(28px, 3.4vw, 52px);
  }

  .page-about .about-toc {
    position: sticky;
    top: 24px;
    align-self: start;
    padding-top: 14px;
    border-top-color: var(--whistle);
  }

  .page-about .about-toc__list {
    flex-direction: column;
    overflow: visible;
    gap: 0;
    padding-bottom: 0;
  }

  .page-about .about-toc__link {
    border: 0;
    border-left: 2px solid transparent;
    padding: 9px 0 9px 13px;
    white-space: normal;
    font-size: 14px;
  }

  .page-about .about-toc__link:hover,
  .page-about .about-toc__link:focus-visible {
    border-left-color: var(--whistle);
    background: linear-gradient(90deg, rgba(242, 206, 27, 0.12), transparent 72%);
  }

  .page-about .about-sec__lead,
  .page-about .phase__body {
    max-width: 36em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about * {
    transition-duration: 1ms !important;
  }
}
<<<END>>>