.page-about {
  --about-rail-w: 224px;
  background: var(--night);
  color: var(--chalk);
}

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(18px, 3vw, 30px) clamp(26px, 4vw, 48px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(90% 130% at 100% 0%, rgba(47, 125, 78, 0.32) 0%, rgba(47, 125, 78, 0) 62%),
    linear-gradient(180deg, rgba(18, 58, 42, 0.72) 0%, rgba(11, 31, 24, 0) 100%);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: clamp(-140px, -8vw, -60px);
  bottom: -80px;
  width: min(52vw, 380px);
  aspect-ratio: 1;
  border: 1px solid var(--line-strong);
  transform: rotate(26deg);
  pointer-events: none;
}

.page-about .about-hero__inner {
  display: grid;
  gap: clamp(18px, 2.6vw, 32px);
  margin-top: clamp(16px, 2.4vw, 28px);
}

.page-about .about-hero__lead {
  min-width: 0;
}

.page-about .about-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.06;
  letter-spacing: -0.012em;
  color: var(--chalk);
  word-break: break-word;
}

.page-about .about-hero__text {
  max-width: 56ch;
  margin: 16px 0 0;
  color: rgba(244, 247, 242, 0.84);
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.78;
}

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

.page-about .about-season {
  align-self: stretch;
  min-width: 0;
  padding: 18px 18px 20px;
  background: rgba(18, 58, 42, 0.86);
  border: 1px solid var(--line-strong);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

.page-about .about-season__label {
  margin: 0;
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-about .about-season__value {
  margin: 6px 0 0;
  font-size: clamp(28px, 4vw, 38px);
  line-height: 1;
  color: var(--lime);
}

.page-about .about-season__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-about .about-season__list li {
  position: relative;
  padding-left: 14px;
  font-size: 13.5px;
  line-height: 1.6;
  color: rgba(244, 247, 242, 0.8);
}

.page-about .about-season__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--pitch);
  transform: rotate(45deg);
}

.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(24px, 3.4vw, 40px);
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
  padding: 14px 16px 16px;
  background: var(--stand);
}

.page-about .about-stat__num {
  font-size: clamp(24px, 3vw, 32px);
  line-height: 1;
  color: var(--lime);
}

.page-about .about-stat__label {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--mist);
}

.page-about .about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 40px);
  padding-block: clamp(24px, 4vw, 48px) clamp(36px, 5vw, 72px);
}

.page-about .about-rail {
  border: 1px solid var(--line);
  background: rgba(18, 58, 42, 0.5);
  padding: 16px;
  min-width: 0;
}

.page-about .about-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-about .about-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-about .about-rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  color: rgba(244, 247, 242, 0.88);
  font-size: 13.5px;
  line-height: 1.45;
  text-decoration: none;
  transition: background 0.18s var(--ease), color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-about .about-rail__num {
  flex: none;
  font-size: 11.5px;
  color: var(--pitch);
  letter-spacing: 0.06em;
}

.page-about .about-rail__link:hover,
.page-about .about-rail__link:focus-visible {
  background: rgba(221, 242, 71, 0.08);
  border-left-color: var(--lime);
  color: var(--lime);
}

.page-about .about-rail__link:hover .about-rail__num,
.page-about .about-rail__link:focus-visible .about-rail__num {
  color: var(--lime);
}

.page-about .about-rail__link:focus-visible,
.page-about .index-list a:focus-visible {
  outline: 2px solid var(--mist);
  outline-offset: 2px;
}

.page-about .about-body {
  min-width: 0;
}

.page-about .chapter {
  scroll-margin-top: 96px;
}

.page-about .chapter + .chapter {
  margin-top: clamp(30px, 4.2vw, 60px);
  padding-top: clamp(24px, 3.4vw, 44px);
  border-top: 1px solid var(--line);
}

.page-about .chapter__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 14px;
}

.page-about .chapter__num {
  flex: none;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--lime);
}

.page-about .chapter__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 3vw, 30px);
  line-height: 1.16;
  letter-spacing: -0.005em;
  color: var(--chalk);
  word-break: break-word;
}

.page-about .chapter__lede {
  margin: 0 0 14px;
  font-family: var(--font-serif);
  font-size: clamp(16px, 1.9vw, 19px);
  line-height: 1.72;
  color: rgba(244, 247, 242, 0.92);
}

.page-about .chapter p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(244, 247, 242, 0.82);
}

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

.page-about .chapter a.link-arrow {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(221, 242, 71, 0.45);
}

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

.page-about .about-figure {
  margin: 22px 0 24px;
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line-strong);
  filter: saturate(0.85) contrast(1.02);
  object-fit: cover;
}

.page-about .about-figure figcaption {
  margin-top: 8px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist);
}

.page-about .about-pullquote {
  margin: 0 0 26px;
  padding: 18px 20px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: clamp(15px, 1.8vw, 18px);
  line-height: 1.72;
  border-left: 4px solid var(--lime);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}

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

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--pitch) 0%, var(--lime) 55%, var(--signal) 100%);
}

.page-about .timeline__item {
  position: relative;
  padding-bottom: 12px;
}

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

.page-about .timeline__item::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 16px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--night);
  border: 2px solid var(--lime);
}

.page-about .timeline__card {
  padding: 13px 18px 15px;
  background: #143b2b;
  border-left: 2px solid rgba(221, 242, 71, 0.4);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
  transition: transform 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-about .timeline__item:hover .timeline__card {
  transform: translateY(-2px);
  background: #17452f;
  border-left-color: var(--lime);
}

.page-about .timeline__item:focus-within .timeline__card {
  border-left-color: var(--lime);
}

.page-about .timeline__stage {
  margin: 0 0 6px !important;
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--lime) !important;
}

.page-about .timeline__text {
  margin: 0 !important;
  font-size: 14.5px !important;
  line-height: 1.72 !important;
  color: rgba(244, 247, 242, 0.84) !important;
}

.page-about .cover-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: 22px;
}

.page-about .cover-card {
  min-width: 0;
  padding: 18px 18px 20px;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(18, 58, 42, 0.9) 0%, rgba(11, 31, 24, 0.62) 100%);
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-about .cover-card:hover {
  transform: translateY(-2px);
  border-color: var(--lime);
}

.page-about .cover-card__num {
  margin: 0 !important;
  font-size: clamp(28px, 3.6vw, 38px);
  line-height: 1;
  color: var(--lime) !important;
}

.page-about .cover-card__title {
  margin: 8px 0 6px;
  font-family: var(--font-display);
  font-size: 16px;
  letter-spacing: 0.02em;
  color: var(--chalk);
}

.page-about .cover-card__text {
  margin: 0 !important;
  font-size: 14px !important;
  line-height: 1.72 !important;
  color: rgba(244, 247, 242, 0.78) !important;
}

.page-about .desk-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: 22px;
}

.page-about .desk-card {
  position: relative;
  min-width: 0;
  padding: 18px 18px 20px;
  background: var(--stand);
  border-top: 2px solid var(--pitch);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-about .desk-card:hover {
  background: #17452f;
  border-top-color: var(--lime);
}

.page-about .desk-card__tag {
  display: inline-block;
}

.page-about .desk-card__title {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1.3;
  color: var(--chalk);
}

.page-about .desk-card__text {
  margin: 0 !important;
  font-size: 14px !important;
  line-height: 1.74 !important;
  color: rgba(244, 247, 242, 0.8) !important;
}

.page-about .rhythm {
  margin-top: 22px;
  padding: 18px 18px 20px;
  border: 1px dashed var(--line-strong);
  background: rgba(11, 31, 24, 0.55);
}

.page-about .rhythm__title {
  margin: 0 0 12px !important;
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist) !important;
}

.page-about .rhythm__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .rhythm__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.page-about .rhythm__list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-about .rhythm__key {
  flex: none;
  min-width: 74px;
  font-size: 16px;
  color: var(--lime);
}

.page-about .rhythm__val {
  min-width: 0;
  font-size: 14px;
  line-height: 1.6;
  color: rgba(244, 247, 242, 0.82);
}

.page-about .step-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .step {
  background: var(--stand);
  border: 1px solid var(--line);
  min-width: 0;
}

.page-about .step[open] {
  border-color: var(--line-strong);
  background: #17452f;
}

.page-about .step > summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 15.5px;
  letter-spacing: 0.02em;
  color: var(--chalk);
  transition: background 0.18s var(--ease);
}

.page-about .step > summary::-webkit-details-marker {
  display: none;
}

.page-about .step > summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-num);
  font-size: 16px;
  color: var(--lime);
}

.page-about .step[open] > summary::after {
  content: "–";
}

.page-about .step > summary:hover {
  background: rgba(221, 242, 71, 0.08);
}

.page-about .step > summary:focus-visible {
  outline: 2px solid var(--mist);
  outline-offset: -2px;
  box-shadow: inset 0 0 0 2px rgba(221, 242, 71, 0.35);
}

.page-about .step__num {
  flex: none;
  font-size: 12.5px;
  color: var(--pitch);
}

.page-about .step[open] .step__num {
  color: var(--lime);
}

.page-about .step__body {
  margin: 0 !important;
  padding: 0 16px 16px;
  font-size: 14.5px !important;
  line-height: 1.75 !important;
  color: rgba(244, 247, 242, 0.82) !important;
}

.page-about .verify-callout {
  margin-top: 20px;
  padding: 18px 18px 20px;
  background: var(--paper);
  color: var(--ink);
  border-left: 4px solid var(--signal);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}

.page-about .verify-callout__title {
  margin: 0 0 8px !important;
  font-family: var(--font-display);
  font-size: 16px;
  letter-spacing: 0.02em;
  color: var(--ink) !important;
}

.page-about .verify-callout__text {
  margin: 0 !important;
  font-size: 14.5px !important;
  line-height: 1.78 !important;
  color: rgba(7, 16, 12, 0.86) !important;
}

.page-about .verify-callout__mail {
  color: #8a2f0f;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .verify-callout__mail:hover,
.page-about .verify-callout__mail:focus-visible {
  color: var(--ink);
}

.page-about .partner-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin: 22px 0 24px;
}

.page-about .partner-card {
  min-width: 0;
  padding: 16px 16px 18px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--pitch);
  background: rgba(18, 58, 42, 0.62);
}

.page-about .partner-card__num {
  margin: 0 0 6px !important;
  font-size: clamp(22px, 2.8vw, 28px);
  line-height: 1;
  color: var(--lime) !important;
}

.page-about .partner-card__text {
  margin: 0 !important;
  font-size: 14px !important;
  line-height: 1.72 !important;
  color: rgba(244, 247, 242, 0.8) !important;
}

.page-about .about-next {
  margin-top: clamp(32px, 4.4vw, 60px);
  padding-top: clamp(24px, 3.4vw, 40px);
  border-top: 1px solid var(--line-strong);
}

.page-about .about-next .section-head {
  margin-bottom: 18px;
}

.page-about .next-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-about .next-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
  padding: 18px 18px 20px;
  text-decoration: none;
  color: var(--chalk);
  border: 1px solid var(--line-strong);
  background: linear-gradient(150deg, rgba(18, 58, 42, 0.95) 0%, rgba(11, 31, 24, 0.7) 100%);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
  transition: transform 0.2s var(--ease), background 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-about .next-card:hover,
.page-about .next-card:focus-visible {
  transform: translateY(-3px);
  background: #17452f;
  box-shadow: inset 0 0 0 1px var(--lime);
}

.page-about .next-card:focus-visible {
  outline: 2px solid var(--mist);
  outline-offset: 3px;
}

.page-about .next-card__num {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--lime);
}

.page-about .next-card__title {
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1.3;
}

.page-about .next-card__hint {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--mist);
}

@media (min-width: 560px) {
  .page-about .cover-grid,
  .page-about .partner-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
  }

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

@media (min-width: 980px) {
  .page-about .about-layout {
    grid-template-columns: var(--about-rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-rail {
    position: sticky;
    top: 104px;
  }

  .page-about .about-body {
    max-width: 74ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .cover-card,
  .page-about .desk-card,
  .page-about .next-card,
  .page-about .timeline__card,
  .page-about .about-rail__link,
  .page-about .step > summary {
    transition: none;
  }

  .page-about .cover-card:hover,
  .page-about .desk-card:hover,
  .page-about .next-card:hover,
  .page-about .timeline__item:hover .timeline__card {
    transform: none;
  }
}
<<<END>>>