.page-about {
  --about-line: rgba(53, 241, 208, .28);
  --about-node: #FF8A3D;
  --about-node-glow: rgba(255, 138, 61, .35);
  --about-rail-w: 128px;
  background: var(--ink-0);
  color: var(--white);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

/* ---------- breadcrumbs ---------- */
.page-about .crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 18px 0 0;
  font-size: 13px;
  color: var(--steel);
}
.page-about .crumbs__item + .crumbs__item::before {
  content: "/";
  margin-right: 6px;
  color: var(--line);
}
.page-about .crumbs a {
  color: var(--steel);
  text-decoration: none;
  transition: color var(--t-fast);
}
.page-about .crumbs a:hover,
.page-about .crumbs a:focus-visible {
  color: var(--cyan);
}

/* ---------- hero ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(32px, 5vw, 72px) 0 clamp(48px, 7vw, 104px);
}
.page-about .about-hero__grid {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
  align-items: end;
}
.page-about .about-hero__title {
  margin: 14px 0 0;
  font-size: clamp(30px, 5.6vw, 62px);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: -.02em;
  transform: skewX(-2deg);
  text-shadow:
    0 0 0 transparent,
    1px 0 0 var(--cyan);
}
.page-about .about-hero__lede {
  margin: 22px 0 0;
  max-width: 40ch;
  color: var(--mist);
  font-size: 17px;
  line-height: 1.85;
}
.page-about .about-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.page-about .about-hero__fig {
  margin: 0;
  border: 1px solid var(--about-line);
  border-radius: 4px 40px 4px 4px;
  overflow: hidden;
  background: var(--ink-1);
}
.page-about .about-hero__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}
.page-about .about-hero__fig .media-frame__cap {
  padding: 12px 16px;
  font-size: 12.5px;
  color: var(--steel);
  line-height: 1.6;
  background: rgba(10, 42, 52, .7);
}
.page-about .about-hero__note {
  position: absolute;
  top: 40%;
  right: 10px;
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--about-line);
  writing-mode: vertical-rl;
  display: none;
}

/* ---------- shared section bits ---------- */
.page-about .section {
  padding: var(--step) 0;
}
.page-about .section-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: clamp(24px, 3vw, 40px);
}
.page-about .section-head__num {
  font-size: 15px;
  font-weight: 800;
  color: var(--cyan);
  letter-spacing: .08em;
}
.page-about .section-head__title {
  margin: 0;
  font-size: clamp(22px, 3.4vw, 36px);
  font-weight: 800;
  line-height: 1.25;
  transform: skewX(-2deg);
}
.page-about .prose p {
  margin: 0 0 1em;
  max-width: 40ch;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--mist);
}
.page-about .prose p:last-child {
  margin-bottom: 0;
}
.page-about .side-note {
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--steel);
  writing-mode: vertical-rl;
}

/* ---------- 01 why ---------- */
.page-about .about-why {
  background: var(--ink-1);
}
.page-about .about-why__split,
.page-about .about-team__split {
  display: grid;
  gap: clamp(20px, 3vw, 44px);
}
.page-about .about-why__sidenote,
.page-about .about-team__sidenote {
  margin: 0;
  display: none;
}

/* ---------- 02 timeline ---------- */
.page-about .about-timeline {
  background: var(--ink-2);
}
.page-about .about-timeline__intro {
  max-width: 46ch;
  margin: 0 0 clamp(32px, 5vw, 56px);
  color: var(--steel);
  font-size: 15.5px;
  line-height: 1.8;
}
.page-about .timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}
.page-about .timeline__item {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 18px;
  padding-bottom: clamp(34px, 5vw, 60px);
  position: relative;
}
.page-about .timeline__item:last-child {
  padding-bottom: 0;
}
.page-about .timeline__rail {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.page-about .timeline__rail::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: -60px;
  left: 50%;
  width: 2px;
  transform: translateX(-50%);
  background: var(--about-line);
}
.page-about .timeline__item:last-child .timeline__rail::before {
  display: none;
}
.page-about .timeline__dot {
  position: relative;
  z-index: 1;
  width: 14px;
  height: 14px;
  margin-top: 6px;
  border-radius: 50%;
  background: var(--about-node);
  box-shadow: 0 0 0 5px rgba(255, 138, 61, .1);
  transition: box-shadow var(--t-mid), background var(--t-mid);
}
.page-about .timeline__item.is-active .timeline__dot {
  box-shadow: 0 0 0 7px var(--about-node-glow), 0 0 20px var(--about-node-glow);
}
.page-about .timeline__tag {
  margin-top: 12px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--steel);
  writing-mode: vertical-rl;
  transition: color var(--t-mid);
}
.page-about .timeline__item.is-active .timeline__tag {
  color: var(--cyan);
}
.page-about .timeline__body {
  padding: 0 0 0 2px;
}
.page-about .timeline__title {
  margin: 0 0 12px;
  font-size: clamp(18px, 2.4vw, 23px);
  font-weight: 800;
  transform: skewX(-1.5deg);
  transition: text-shadow var(--t-mid);
}
.page-about .timeline__item.is-active .timeline__title {
  text-shadow: 1px 0 0 var(--cyan);
}
.page-about .timeline__body p {
  margin: 0 0 14px;
  max-width: 42ch;
  color: var(--mist);
  font-size: 15.5px;
  line-height: 1.8;
}
.page-about .timeline__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
}
.page-about .timeline__list li {
  font-size: 13px;
  line-height: 1.5;
  padding: 6px 12px;
  color: var(--white);
  background: rgba(53, 241, 208, .07);
  border: 1px solid var(--about-line);
  border-radius: 999px;
}
.page-about .timeline__hint {
  margin: 36px 0 0;
  font-size: 12.5px;
  color: var(--steel);
}

/* ---------- 03 team ---------- */
.page-about .about-team {
  background: var(--ink-2);
}
.page-about .about-team__addr {
  margin: 16px 0 0;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cyan);
  writing-mode: vertical-rl;
}
.page-about .team-blocks {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}
.page-about .team-block {
  padding: 22px 24px;
  border-radius: 6px;
  background: var(--ink-1);
  border: 1px solid rgba(53, 241, 208, .12);
  transition: transform var(--t-mid), border-color var(--t-mid);
}
.page-about .team-block:hover,
.page-about .team-block:focus-within {
  transform: translateY(-3px);
  border-color: var(--about-line);
}
.page-about .team-block--a { border-left: 4px solid var(--cyan); }
.page-about .team-block--b { border-left: 4px solid var(--amber); }
.page-about .team-block--c { border-left: 4px solid var(--steel); }
.page-about .team-block__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: .04em;
}
.page-about .team-block__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 04 partners ---------- */
.page-about .about-partners {
  background: var(--ink-1);
}
.page-about .about-partners__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}
.page-about .about-partners__fig {
  margin: 0;
  border: 1px solid var(--about-line);
  border-radius: 40px 4px 4px 4px;
  overflow: hidden;
  background: var(--ink-0);
}
.page-about .about-partners__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}
.page-about .about-partners__fig .media-frame__cap {
  padding: 12px 16px;
  font-size: 12.5px;
  color: var(--steel);
  line-height: 1.6;
  background: rgba(6, 20, 40, .8);
}
.page-about .about-facts {
  margin: 30px 0 0;
  padding: 0;
  border-top: 1px solid var(--about-line);
}
.page-about .about-facts__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(143, 166, 196, .16);
}
.page-about .about-facts__k {
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--steel);
}
.page-about .about-facts__v {
  margin: 0;
  font-size: 14px;
  color: var(--white);
  text-align: right;
}
.page-about .about-facts__v .data-num--sm {
  font-size: 26px;
  font-weight: 800;
  color: var(--cyan);
  letter-spacing: -.02em;
  margin-right: 2px;
}

/* ---------- 05 scale ---------- */
.page-about .about-scale {
  background: var(--wine);
  color: var(--white);
}
.page-about .about-scale__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}
.page-about .about-scale__num {
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.page-about .about-scale__big {
  font-size: clamp(72px, 15vw, 150px);
  font-weight: 800;
  line-height: .9;
  letter-spacing: -.03em;
  color: var(--cyan);
  text-shadow: 0 6px 30px rgba(53, 241, 208, .28);
}
.page-about .about-scale__unit {
  font-size: clamp(16px, 2vw, 22px);
  font-weight: 700;
  color: var(--white);
  letter-spacing: .06em;
}
.page-about .about-scale__title {
  margin: 0 0 16px;
}
.page-about .about-scale__fig {
  margin: 0;
  border: 1px solid rgba(242, 246, 255, .18);
  border-radius: 4px 4px 40px 4px;
  overflow: hidden;
}
.page-about .about-scale__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}
.page-about .about-scale__fig .media-frame__cap {
  padding: 12px 16px;
  font-size: 12.5px;
  color: var(--mist);
  line-height: 1.6;
  background: rgba(0, 0, 0, .22);
}

/* ---------- 06 change ---------- */
.page-about .about-change {
  background: var(--mist);
  color: var(--ink-0);
}
.page-about .about-change .section-head__title {
  color: var(--ink-0);
}
.page-about .about-change__lede {
  max-width: 48ch;
  margin: 0 0 clamp(26px, 4vw, 44px);
  font-size: 16.5px;
  line-height: 1.8;
  color: #3d4f6b;
}
.page-about .change-table {
  border-top: 2px solid var(--ink-0);
}
.page-about .change-table__head {
  display: none;
}
.page-about .change-table__row {
  display: grid;
  gap: 0;
  border-bottom: 1px solid rgba(6, 20, 40, .16);
}
.page-about .change-table__cell {
  padding: 20px 0;
  font-size: 15px;
  line-height: 1.75;
  color: #2a3a54;
}
.page-about .change-table__cell--old {
  color: #6b7a92;
  padding-bottom: 10px;
}
.page-about .change-table__cell--new {
  position: relative;
  padding-top: 10px;
  color: var(--ink-0);
  font-weight: 500;
}
.page-about .change-table__cell--new::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 34px;
  height: 2px;
  background: var(--amber);
}
.page-about .change-table__label {
  display: block;
  margin-bottom: 6px;
  font-size: 11.5px;
  font-weight: 800;
  letter-spacing: .16em;
  color: var(--steel);
}
.page-about .change-table__cell--new .change-table__label {
  color: #0E6B62;
}
.page-about .about-change__more {
  margin-top: clamp(30px, 4vw, 50px);
  display: grid;
  gap: 20px;
}
.page-about .about-change__more-text {
  margin: 0;
  max-width: 52ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: #3d4f6b;
}
.page-about .about-change__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* Change section buttons adjusted for light background */
.page-about .about-change .btn--ghost {
  color: var(--ink-0);
  border-color: rgba(6, 20, 40, .35);
}
.page-about .about-change .btn--ghost:hover,
.page-about .about-change .btn--ghost:focus-visible {
  border-color: var(--ink-0);
  background: rgba(6, 20, 40, .06);
}
.page-about .about-change .btn--quiet {
  color: #3d4f6b;
}

/* ---------- close ---------- */
.page-about .about-close {
  background: var(--ink-0);
  text-align: left;
}
.page-about .about-close__inner {
  max-width: 720px;
}
.page-about .about-close__title {
  margin: 12px 0 0;
  font-size: clamp(24px, 4vw, 40px);
  font-weight: 800;
  line-height: 1.2;
  transform: skewX(-2deg);
}
.page-about .about-close__lede {
  margin: 20px 0 0;
  max-width: 40ch;
  color: var(--mist);
  font-size: 16.5px;
  line-height: 1.85;
}
.page-about .about-close__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* ---------- page-level side note ---------- */
.page-about .about-page-note {
  position: fixed;
  top: 50%;
  right: 8px;
  transform: translateY(-50%);
  z-index: 5;
  color: var(--about-line);
  display: none;
  pointer-events: none;
}

/* ---------- data-reveal ---------- */
.page-about .reveal-ready [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
}
.page-about .reveal-ready [data-reveal].is-in {
  opacity: 1;
  transform: none;
  transition: opacity .6s ease, transform .6s ease;
}

/* ---------- responsive ---------- */
@media (min-width: 640px) {
  .page-about .change-table__head {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    padding: 14px 0;
    border-bottom: 2px solid var(--ink-0);
  }
  .page-about .change-table__th {
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .18em;
    color: var(--steel);
  }
  .page-about .change-table__th--new {
    color: #0E6B62;
  }
  .page-about .change-table__row {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    padding: 18px 0;
  }
  .page-about .change-table__cell {
    padding: 0;
  }
  .page-about .change-table__cell--new::before {
    display: none;
  }
  .page-about .about-change__more {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__note {
    display: block;
  }
  .page-about .about-why__split,
  .page-about .about-team__split {
    grid-template-columns: 120px minmax(0, 1fr);
  }
  .page-about .about-why__sidenote,
  .page-about .about-team__sidenote {
    display: block;
    position: sticky;
    top: 96px;
  }
  .page-about .about-partners__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }
  .page-about .about-scale__grid {
    grid-template-columns: 220px minmax(0, 1fr) 300px;
    gap: clamp(28px, 3vw, 48px);
    align-items: center;
  }
  .page-about .about-scale__fig {
    grid-column: 3;
  }
  .page-about .about-page-note {
    display: block;
  }
  .page-about .timeline__item {
    grid-template-columns: var(--about-rail-w) minmax(0, 1fr);
    gap: 30px;
  }
  .page-about .timeline__rail {
    align-items: flex-start;
    padding-left: 4px;
  }
  .page-about .timeline__rail::before {
    left: 10.5px;
    transform: none;
  }
  .page-about .timeline__dot {
    margin-left: 3.5px;
  }
  .page-about .timeline__tag {
    writing-mode: horizontal-tb;
    font-size: 13px;
    margin-top: 10px;
    letter-spacing: .14em;
  }
  .page-about .timeline__body p {
    max-width: 52ch;
  }
  .page-about .team-blocks {
    grid-template-columns: 1.25fr 1fr .9fr;
    align-items: start;
  }
  .page-about .team-block--b {
    margin-top: 26px;
  }
  .page-about .team-block--c {
    margin-top: 52px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: 56px;
  }
  .page-about .about-hero {
    padding-top: clamp(48px, 5vw, 84px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition-duration: .001ms !important;
    animation-duration: .001ms !important;
  }
  .page-about .reveal-ready [data-reveal] {
    opacity: 1;
    transform: none;
  }
}