.page-about {
  --about-measure: 40em;
  --about-gap: clamp(52px, 7vw, 96px);
  --about-body: rgba(232, 243, 238, .86);
  padding-bottom: clamp(56px, 8vw, 96px);
}

.page-about .about-hero-wrap {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 88% 6%, rgba(0, 229, 199, .12), transparent 62%),
    linear-gradient(158deg, var(--c-ink-deep) 0%, var(--c-ink) 58%, var(--c-ink) 100%);
  border-bottom: 1px solid var(--line);
}

.page-about .about-hero-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 229, 199, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 199, .07) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .65), transparent 78%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .65), transparent 78%);
}

.page-about .about-hero {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  align-items: center;
  padding: clamp(36px, 5vw, 64px) 0 clamp(40px, 6vw, 72px);
}

.page-about .about-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5.4vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -.01em;
  font-weight: 800;
  color: var(--c-text);
}

.page-about .about-hero__lede {
  max-width: 32em;
  margin: 20px 0 0;
  font-size: clamp(1rem, 1.5vw, 1.0625rem);
  line-height: 1.8;
  color: var(--about-body);
}

.page-about .about-hero .cta-row {
  margin-top: 26px;
}

.page-about .about-hero__media {
  border-radius: var(--r-organic-lg);
  border: 1px solid var(--line-strong);
  box-shadow: 0 24px 60px -30px rgba(0, 0, 0, .8);
}

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

.page-about .about-index {
  padding: clamp(18px, 3vw, 26px) 0;
  margin-bottom: clamp(8px, 2vw, 20px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 18px;
}

.page-about .about-index__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 0 8px 10px;
  border-left: 2px solid rgba(0, 229, 199, .35);
  font-size: .875rem;
  line-height: 1.4;
  color: var(--c-text);
  text-decoration: none;
  transition: color var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out), background-color var(--dur) var(--ease-out);
}

.page-about .about-index__num {
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--c-neon);
  letter-spacing: .04em;
}

.page-about .about-index__link:hover,
.page-about .about-index__link:focus-visible {
  color: var(--c-neon-soft);
  border-left-color: var(--c-neon);
  background-color: rgba(0, 229, 199, .06);
}

.page-about .chapter {
  padding-top: var(--about-gap);
  scroll-margin-top: calc(var(--status-h) + 16px);
}

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

.page-about .chapter__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(2.5rem, 7vw, 4.75rem);
  line-height: .82;
  letter-spacing: -.04em;
  color: var(--c-neon);
  opacity: .3;
}

.page-about .chapter__title {
  margin: 0;
  padding-top: 2px;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.2vw, 2.125rem);
  line-height: 1.2;
  letter-spacing: -.01em;
  font-weight: 800;
  color: var(--c-text);
}

.page-about .chapter__lede {
  max-width: 30em;
  margin: 24px 0 0;
  padding-left: 16px;
  border-left: 3px solid var(--c-neon);
  font-size: clamp(1.125rem, 2.3vw, 1.5rem);
  line-height: 1.55;
  color: var(--c-text);
}

.page-about .chapter__body {
  margin-top: clamp(24px, 3.5vw, 40px);
}

.page-about .chapter__body p {
  max-width: var(--about-measure);
  margin: 0 0 18px;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--about-body);
}

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

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

.page-about .rule:last-of-type {
  border-bottom: 1px solid var(--line);
}

.page-about .rule__summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 22px 0;
  cursor: pointer;
  list-style: none;
  border-radius: var(--r-organic);
  transition: background-color var(--dur) var(--ease-out);
}

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

.page-about .rule__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  line-height: 1;
  color: var(--c-neon);
}

.page-about .rule[open] .rule__summary::after {
  content: "–";
}

.page-about .rule__summary:hover,
.page-about .rule__summary:focus-visible {
  background-color: rgba(0, 229, 199, .05);
}

.page-about .rule__idx {
  flex: none;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .08em;
  color: var(--c-neon);
  text-transform: uppercase;
}

.page-about .rule__title {
  font-family: var(--font-display);
  font-size: clamp(1.0625rem, 2vw, 1.3125rem);
  font-weight: 700;
  line-height: 1.45;
  color: var(--c-text);
}

.page-about .rule__body {
  max-width: var(--about-measure);
  margin: 0 0 26px;
  padding-left: 18px;
  border-left: 2px solid rgba(0, 229, 199, .4);
}

.page-about .rule__body p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--about-body);
}

.page-about .scope-grid {
  display: grid;
  gap: 28px;
}

.page-about .scope__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--c-neon-soft);
}

.page-about .scope--alt .scope__title {
  color: var(--c-orange-soft);
}

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

.page-about .scope__item {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--line);
}

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

.page-about .scope__k {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-text);
}

.page-about .scope__v {
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--about-body);
}

.page-about .team-bar {
  display: flex;
  height: 46px;
  border-radius: var(--r-organic);
  overflow: hidden;
  background-color: var(--c-ink-abyss);
}

.page-about .team-bar__seg {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  min-width: 0;
  color: var(--c-ink-abyss);
  transition: filter var(--dur) var(--ease-out);
}

.page-about .team-bar__seg:hover {
  filter: brightness(1.12);
}

.page-about .team-bar__n {
  font-family: var(--font-mono);
  font-size: .8125rem;
  font-weight: 700;
  letter-spacing: .02em;
}

.page-about .team-bar__seg--a { width: 43%; background-color: var(--c-neon); }
.page-about .team-bar__seg--b { width: 25%; background-color: var(--c-neon-soft); }
.page-about .team-bar__seg--c { width: 18%; background-color: var(--c-orange); }
.page-about .team-bar__seg--d { width: 14%; background-color: var(--c-muted); }

.page-about .team-legend {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-about .team-legend__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .team-legend__dot {
  width: 9px;
  height: 9px;
  flex: none;
  align-self: center;
  border-radius: 2px;
}

.page-about .team-legend__dot--a { background-color: var(--c-neon); }
.page-about .team-legend__dot--b { background-color: var(--c-neon-soft); }
.page-about .team-legend__dot--c { background-color: var(--c-orange); }
.page-about .team-legend__dot--d { background-color: var(--c-muted); }

.page-about .team-legend__name {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-text);
}

.page-about .team-legend__val {
  font-family: var(--font-mono);
  font-size: .875rem;
  color: var(--c-neon);
}

.page-about .team-legend__desc {
  flex-basis: 100%;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--about-body);
}

.page-about .team-figure {
  margin: clamp(24px, 3.5vw, 36px) 0 0;
  border-radius: var(--r-organic-lg);
  border: 1px solid var(--line);
  overflow: hidden;
}

.page-about .team-flow {
  margin: 24px 0 0 !important;
  padding: 20px 22px;
  border-radius: var(--r-organic-lg);
  background-color: var(--c-card);
  border-left: 3px solid var(--c-neon);
}

.page-about .timeline {
  display: grid;
  gap: clamp(28px, 4vw, 44px);
}

.page-about .timeline__list {
  list-style: none;
  margin: 0;
  padding: 4px 0 4px 22px;
  border-left: 1px solid var(--line-strong);
}

.page-about .milestone {
  position: relative;
}

.page-about .milestone::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 22px;
  width: 10px;
  height: 10px;
  background-color: var(--c-neon);
  border-radius: 2px;
  transform: rotate(45deg);
}

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

.page-about .milestone__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  padding: 14px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-about .milestone__summary:hover .milestone__title,
.page-about .milestone__summary:focus-visible .milestone__title {
  color: var(--c-neon-soft);
}

.page-about .milestone__mark {
  flex: none;
  min-width: 4ch;
  font-family: var(--font-mono);
  font-size: 1.375rem;
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--c-neon);
  font-variant-numeric: tabular-nums;
}

.page-about .milestone__title {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--c-text);
  transition: color var(--dur) var(--ease-out);
}

.page-about .milestone__text {
  max-width: var(--about-measure);
  margin: 0 0 18px;
  padding-left: 2px;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--about-body);
}

.page-about .timeline__media {
  margin: 0;
  border-radius: var(--r-organic-lg);
  border: 1px solid var(--line);
  overflow: hidden;
}

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

.page-about .promise {
  padding: 18px 20px;
  border-radius: var(--r-organic);
  background-color: rgba(15, 76, 58, .62);
  border: 1px solid var(--line);
  transition: border-color var(--dur) var(--ease-out), transform var(--dur) var(--ease-out);
}

.page-about .promise:hover {
  border-color: rgba(0, 229, 199, .5);
  transform: translateY(-2px);
}

.page-about .promise__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  line-height: 1;
  color: var(--c-neon);
  font-variant-numeric: tabular-nums;
}

.page-about .promise__label {
  display: block;
  margin-top: 6px;
  font-size: .8125rem;
  letter-spacing: .04em;
  color: var(--c-muted);
}

.page-about .promise__text {
  max-width: none !important;
  margin: 12px 0 0 !important;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--about-body);
}

.page-about .collab-note {
  margin-top: 26px !important;
}

.page-about .chapter__body .cta-row {
  margin-top: 24px;
}

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

  .page-about .promise-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: clamp(32px, 4vw, 56px);
  }

  .page-about .chapter__head {
    display: grid;
    grid-template-columns: 116px minmax(0, 1fr);
    gap: 22px;
    align-items: start;
  }

  .page-about .chapter__num {
    text-align: left;
  }

  .page-about .scope-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 36px;
  }

  .page-about .timeline {
    grid-template-columns: minmax(0, 1fr) minmax(0, 288px);
    align-items: start;
  }

  .page-about .timeline__media {
    position: sticky;
    top: calc(var(--status-h) + 24px);
  }
}

@media (min-width: 1040px) {
  .page-about .about-index__list {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 0 14px;
  }

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

@media (max-width: 560px) {
  .page-about .team-bar {
    height: 34px;
  }

  .page-about .team-bar__n {
    font-size: .6875rem;
  }

  .page-about .chapter__lede {
    padding-left: 12px;
  }

  .page-about .rule__summary {
    padding: 18px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .promise:hover {
    transform: none;
  }
}