.page-about {
  --about-track: 96px;
  --about-measure: 62ch;
  background: var(--ink-950);
  color: var(--slate-300);
}

.page-about .about-head {
  position: relative;
  overflow: hidden;
  padding: clamp(36px, 6vw, 76px) 0 clamp(30px, 5vw, 64px);
  background:
    linear-gradient(118deg, rgba(34, 224, 208, 0.12) 0%, rgba(34, 224, 208, 0) 44%),
    var(--ink-950);
  border-bottom: 1px solid var(--ink-700);
}

.page-about .about-head::after {
  content: "";
  position: absolute;
  right: -18%;
  top: -42%;
  width: min(58vw, 640px);
  aspect-ratio: 1 / 1;
  background: linear-gradient(155deg, rgba(29, 50, 85, 0.95), rgba(7, 15, 31, 0) 72%);
  clip-path: polygon(34% 0, 100% 0, 100% 100%, 0 70%);
  pointer-events: none;
}

.page-about .about-head .shell {
  position: relative;
  z-index: 1;
}

.page-about .about-head .breadcrumb {
  margin: 0 0 clamp(18px, 3.5vw, 34px);
}

.page-about .about-head__title {
  margin: 12px 0 20px;
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 6.2vw, 4.5rem);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--chalk);
}

.page-about .about-head__lede {
  max-width: 56ch;
  font-size: clamp(1rem, 1.5vw, 1.16rem);
  line-height: 1.8;
  color: var(--slate-300);
}

.page-about .about-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
  padding-top: clamp(26px, 4.5vw, 54px);
  padding-bottom: clamp(40px, 7vw, 96px);
}

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

.page-about .about-rail__list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.page-about .about-rail__list::-webkit-scrollbar {
  display: none;
}

.page-about .about-rail__link {
  display: block;
  padding: 7px 12px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--blue-gray);
  text-decoration: none;
  border: 1px solid var(--ink-700);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-about .about-rail__link:hover,
.page-about .about-rail__link:focus-visible {
  color: var(--neon-cyan);
  border-color: var(--neon-cyan);
}

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

.page-about .about-sec {
  position: relative;
  padding: clamp(30px, 5vw, 58px) 0;
  border-top: 1px solid var(--ink-700);
}

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

.page-about .about-sec__index {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--score-amber);
}

.page-about .about-sec__title {
  margin: 0 0 clamp(14px, 2vw, 22px);
  max-width: 24ch;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.6vw, 2.45rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--chalk);
}

.page-about .about-sec__intro {
  margin-bottom: clamp(18px, 3vw, 28px);
}

.page-about .about-say {
  margin: 0 0 18px;
  max-width: 34ch;
  padding-left: 16px;
  border-left: 2px solid var(--neon-cyan);
  font-family: var(--font-editorial);
  font-size: clamp(1.08rem, 1.9vw, 1.4rem);
  font-weight: 600;
  line-height: 1.55;
  color: var(--cyan-100);
}

.page-about .about-p {
  margin: 0 0 16px;
  max-width: var(--about-measure);
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--slate-300);
}

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

.page-about .about-p a {
  color: var(--cyan-100);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 208, 0.5);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-about .about-p a:hover,
.page-about .about-p a:focus-visible {
  color: var(--neon-cyan);
  border-bottom-color: var(--neon-cyan);
}

.page-about .about-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
  margin-top: clamp(16px, 3vw, 28px);
}

.page-about .about-split__text > *:last-child {
  margin-bottom: 0;
}

.page-about .about-split__media {
  margin: 0;
}

.page-about .img-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--ink-700);
  background: var(--ink-800);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-about .img-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.94) contrast(1.04);
}

.page-about .img-frame--banner {
  margin: 0;
}

.page-about .about-figcap {
  margin: 10px 0 0;
  max-width: var(--about-measure);
  font-size: 12.5px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--blue-gray);
}

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

.page-about .belief-list > li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 22px 0;
  border-top: 1px solid var(--ink-700);
}

.page-about .belief-list > li:last-child {
  border-bottom: 1px solid var(--ink-700);
}

.page-about .belief__no {
  padding-top: 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--score-amber);
}

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

.page-about .belief__title {
  margin: 0 0 8px;
  font-size: clamp(1.05rem, 1.8vw, 1.28rem);
  font-weight: 800;
  line-height: 1.35;
  color: var(--chalk);
}

.page-about .belief__text {
  margin: 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--slate-300);
}

.page-about .team-stack {
  list-style: none;
  margin: 0 0 clamp(20px, 3vw, 32px);
  padding: 0;
}

.page-about .team-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 6px 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--ink-700);
  outline: none;
}

.page-about .team-row:first-child {
  border-top: 1px solid var(--ink-700);
}

.page-about .team-row:focus-visible {
  outline: 2px solid var(--neon-cyan);
  outline-offset: 2px;
}

.page-about .team-row__role {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.6vw, 1.72rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--chalk);
  transition: transform 0.22s var(--ease), color 0.22s var(--ease);
}

.page-about .team-row__num {
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 3vw, 2rem);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--score-amber);
}

.page-about .team-row__note {
  grid-column: 1 / -1;
  margin: 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--blue-gray);
}

.page-about .about-split--team {
  margin-top: 0;
}

.page-about .timeline {
  position: relative;
  list-style: none;
  margin: 0 0 clamp(18px, 3vw, 26px);
  padding: 0;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: linear-gradient(180deg, rgba(34, 224, 208, 0.55), rgba(29, 50, 85, 0.35));
}

.page-about .timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 0 0 32px 34px;
}

.page-about .timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--ink-800);
  border: 1px solid var(--ink-700);
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-about .timeline__item.is-visible::before,
.page-about .timeline__item:hover::before,
.page-about .timeline__item:focus-within::before {
  background: var(--neon-cyan);
  border-color: var(--neon-cyan);
  transform: scale(1.18);
}

.page-about .timeline__year {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 6vw, 4.4rem);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.01em;
  line-height: 1;
  color: var(--score-amber);
}

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

.page-about .timeline__title {
  margin: 6px 0 8px;
  font-size: clamp(1.05rem, 1.9vw, 1.32rem);
  font-weight: 800;
  line-height: 1.35;
  color: var(--chalk);
}

.page-about .timeline__text {
  margin: 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--slate-300);
}

.page-about .city-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding: 0;
}

.page-about .city-grid__item {
  min-width: 0;
}

.page-about .city-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  width: 100%;
  min-height: 80px;
  padding: 12px 8px;
  font: inherit;
  color: var(--chalk);
  text-align: center;
  cursor: pointer;
  background: var(--ink-800);
  border: 1px solid var(--ink-700);
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease), transform 0.22s var(--ease);
}

.page-about .city-node:hover,
.page-about .city-node:focus-visible {
  border-color: var(--neon-cyan);
  background: var(--ink-700);
  transform: translateY(-2px);
}

.page-about .city-node:focus-visible {
  outline: 2px solid var(--neon-cyan);
  outline-offset: 2px;
}

.page-about .city-node--xl { min-height: 108px; }
.page-about .city-node--lg { min-height: 96px; }
.page-about .city-node--md { min-height: 86px; }
.page-about .city-node--sm { min-height: 76px; }

.page-about .city-node__name {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.page-about .city-node__count {
  font-family: var(--font-mono);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  color: var(--blue-gray);
  opacity: 0.28;
  transform: translateY(3px);
  transition: opacity 0.22s var(--ease), transform 0.22s var(--ease), color 0.22s var(--ease);
}

.page-about .city-node:hover .city-node__count,
.page-about .city-node:focus-visible .city-node__count {
  opacity: 1;
  transform: none;
  color: var(--neon-cyan);
}

.page-about .about-wide {
  margin: clamp(18px, 3vw, 30px) 0;
}

.page-about .next-list {
  list-style: none;
  margin: 0 0 clamp(22px, 3.5vw, 34px);
  padding: 0;
}

.page-about .next-list > li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid var(--ink-700);
}

.page-about .next-list > li:last-child {
  border-bottom: 1px solid var(--ink-700);
}

.page-about .next__idx {
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--blazing-red);
}

.page-about .next__title {
  margin: 0 0 6px;
  font-size: clamp(1.02rem, 1.8vw, 1.24rem);
  font-weight: 800;
  line-height: 1.35;
  color: var(--chalk);
}

.page-about .next__text {
  margin: 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--slate-300);
}

.page-about .about-cta {
  display: grid;
  gap: 18px;
  margin-top: clamp(22px, 3.5vw, 38px);
  padding: clamp(20px, 3vw, 32px);
  background: var(--ink-800);
  border: 1px solid var(--ink-700);
}

.page-about .about-cta__text {
  margin: 0;
  max-width: 54ch;
  font-size: clamp(1rem, 1.6vw, 1.16rem);
  line-height: 1.72;
  color: var(--chalk);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 640px) {
  .page-about .city-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (min-width: 840px) {
  .page-about .about-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-about .about-split--team {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

@media (min-width: 900px) {
  .page-about .about-flow {
    grid-template-columns: var(--about-track) minmax(0, 1fr);
    gap: clamp(28px, 4.5vw, 64px);
    padding-top: clamp(38px, 5.5vw, 70px);
  }

  .page-about .about-rail {
    position: sticky;
    top: 112px;
    align-self: start;
  }

  .page-about .about-rail__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding: 4px 0;
    border-left: 1px solid var(--ink-700);
  }

  .page-about .about-rail__link {
    position: relative;
    padding: 9px 0 9px 18px;
    font-size: 12.5px;
    letter-spacing: 0.16em;
    border: 0;
  }

  .page-about .about-rail__link::before {
    content: "";
    position: absolute;
    left: -4.5px;
    top: 50%;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--ink-700);
    transform: translateY(-50%);
    transition: background 0.22s var(--ease), transform 0.22s var(--ease);
  }

  .page-about .about-rail__link:hover::before,
  .page-about .about-rail__link:focus-visible::before {
    background: var(--neon-cyan);
    transform: translateY(-50%) scale(1.4);
  }

  .page-about .timeline::before {
    left: 9px;
  }

  .page-about .timeline__item {
    grid-template-columns: 148px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
    padding-left: 44px;
  }

  .page-about .timeline__item::before {
    left: 2px;
    top: 24px;
  }

  .page-about .timeline__title {
    margin-top: 10px;
  }
}

@media (min-width: 1024px) {
  .page-about .city-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-about .about-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 24px;
  }

  .page-about .about-cta__actions {
    flex-wrap: nowrap;
  }
}

@media (hover: hover) and (min-width: 840px) {
  .page-about .team-row__note {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.3s var(--ease), opacity 0.3s var(--ease);
  }

  .page-about .team-row:hover .team-row__note,
  .page-about .team-row:focus-visible .team-row__note,
  .page-about .team-row:focus-within .team-row__note {
    max-height: 140px;
    opacity: 1;
  }

  .page-about .team-row:hover .team-row__role,
  .page-about .team-row:focus-visible .team-row__role {
    transform: translateX(6px);
    color: var(--cyan-100);
  }
}

@media (max-width: 600px) {
  .page-about .about-head__title br {
    display: none;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-about .city-node:hover,
  .page-about .city-node:focus-visible,
  .page-about .team-row:hover .team-row__role,
  .page-about .team-row:focus-visible .team-row__role {
    transform: none;
  }

  .page-about .timeline__item.is-visible::before,
  .page-about .timeline__item:hover::before,
  .page-about .timeline__item:focus-within::before {
    transform: none;
  }
}