.page-about {
  --about-corner: 40px;
  background: var(--ink-forest);
  color: var(--mist);
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 96px 0 64px;
  background:
    radial-gradient(120% 100% at 88% 0%, rgba(59,242,210,.16) 0%, transparent 56%),
    linear-gradient(160deg, var(--forest-deep) 0%, var(--ink-forest) 62%);
}

.page-about .about-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  clip-path: polygon(0 0, 100% 0, 100% 78%, 62% 100%, 0 88%);
  opacity: .38;
}

.page-about .about-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(.55) brightness(.7);
}

.page-about .about-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(150deg, rgba(6,26,20,.35) 0%, rgba(6,26,20,.95) 70%),
    repeating-linear-gradient(90deg, rgba(59,242,210,.07) 0 1px, transparent 1px 72px);
}

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

.page-about .breadcrumbs {
  margin-bottom: 40px;
}

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

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.5rem, 8vw, 4.6rem);
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--white-mint);
  margin: 12px 0 22px;
}

.page-about .about-hero__title-accent {
  color: var(--electric-cyan);
  display: inline-block;
}

.page-about .about-hero__sub {
  max-width: 46ch;
  color: var(--mist);
}

.page-about .about-hero__actions {
  margin-top: 30px;
  gap: 12px;
}

.page-about .about-hero__actions .return-chip {
  align-self: center;
}

.page-about .about-hero__board {
  position: relative;
  padding: 26px 22px 22px;
  background: linear-gradient(165deg, var(--forest-card) 0%, rgba(11,36,28,.92) 100%);
  border: 1px solid var(--forest-line);
  border-radius: var(--radius-organic);
  box-shadow: var(--shadow-card);
}

.page-about .about-hero__board::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 22px;
  width: 68px;
  height: 3px;
  background: var(--electric-cyan);
  border-radius: 2px;
}

.page-about .about-hero__board-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-about .about-hero__version {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--cyan-soft);
  letter-spacing: .06em;
}

.page-about .about-hero__board-line {
  margin: 22px 0 4px;
  font-size: .82rem;
  letter-spacing: .08em;
  color: var(--fog);
}

.page-about .about-hero__board-num {
  font-size: clamp(3.2rem, 11vw, 4.6rem);
  line-height: 1;
  font-weight: 600;
  color: var(--amber-gold);
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-about .about-hero__unit {
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 500;
  color: var(--fog);
  letter-spacing: .04em;
}

.page-about .about-hero__board-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--forest-line);
  display: grid;
  gap: 12px;
  font-size: .92rem;
  color: var(--mist);
}

.page-about .about-hero__board-list .mono {
  color: var(--electric-cyan);
  font-weight: 600;
  margin-right: 4px;
}

/* ---------- Origin ---------- */
.page-about .about-origin {
  background: var(--ink-forest);
}

.page-about .about-origin__grid {
  display: grid;
  gap: 32px;
  grid-template-columns: minmax(0, 1fr);
}

.page-about .about-origin__text {
  margin: 0 0 18px;
  font-size: 1.02rem;
  line-height: 1.9;
  color: var(--mist);
}

.page-about .about-origin__aside {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--forest-line);
  border: 1px solid var(--forest-line);
  border-radius: var(--radius-m);
  overflow: hidden;
  align-self: start;
}

.page-about .about-origin__stat {
  background: var(--forest-deep);
  padding: 18px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .about-origin__stat-label {
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--fog);
}

.page-about .about-origin__stat-num {
  font-size: 1.9rem;
  font-weight: 600;
  color: var(--electric-cyan);
  line-height: 1;
}

.page-about .about-origin__aside .footnote {
  grid-column: 1 / -1;
  margin: 0;
  padding: 16px 14px;
  background: var(--forest-deep);
  border-top: 1px solid var(--forest-line);
}

/* ---------- Timeline section ---------- */
.page-about .about-timeline-section {
  background: linear-gradient(180deg, var(--ink-forest) 0%, var(--forest-deep) 18%, var(--forest-deep) 88%, var(--ink-forest) 100%);
}

.page-about .about-timeline-section__head {
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 1fr);
  align-items: end;
  margin-bottom: 40px;
}

.page-about .about-timeline-section__intro {
  max-width: 52ch;
  margin: 16px 0 0;
  color: var(--fog);
  line-height: 1.85;
}

.page-about .about-timeline-section__figure {
  margin: 0;
  border-radius: var(--radius-m);
  overflow: hidden;
  border: 1px solid var(--forest-line);
  background: var(--forest-card);
}

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

/* ladder */
.page-about .about-ladder {
  list-style: none;
  margin: 0 0 46px;
  padding: 0;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(132px, 1fr);
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
  padding-bottom: 8px;
}

.page-about .about-ladder__item {
  position: relative;
  background: var(--forest-card);
  border: 1px solid var(--forest-line);
  border-radius: var(--radius-s);
  padding: 14px 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.page-about .about-ladder__item .mono {
  font-size: .78rem;
  color: var(--electric-cyan);
  letter-spacing: .1em;
}

.page-about .about-ladder__item em {
  font-style: normal;
  font-size: .82rem;
  line-height: 1.5;
  color: var(--mist);
}

.page-about .about-ladder__item::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 8px;
  height: 2px;
  background: var(--forest-line);
  border-radius: 2px;
}

.page-about .about-ladder__item--now {
  border-color: var(--amber-deep);
  background: linear-gradient(160deg, rgba(232,180,90,.14), var(--forest-card));
}

.page-about .about-ladder__item--now .mono {
  color: var(--amber-gold);
}

.page-about .about-ladder__item--now::after {
  background: var(--amber-gold);
}

/* timeline list */
.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  display: grid;
  gap: 18px;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 7px;
  width: 2px;
  background: linear-gradient(180deg, var(--electric-cyan) 0%, var(--forest-line) 55%, var(--amber-deep) 100%);
  opacity: .55;
}

.page-about .about-timeline__item {
  position: relative;
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(0, 1fr);
  padding-left: 30px;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--ink-forest);
  border: 2px solid var(--electric-cyan);
}

.page-about .about-timeline__item--now::before {
  border-color: var(--amber-gold);
  box-shadow: 0 0 0 5px rgba(232,180,90,.14);
}

.page-about .about-timeline__code {
  font-size: .78rem;
  letter-spacing: .12em;
  color: var(--fog);
}

.page-about .about-timeline__details {
  background: var(--forest-card);
  border: 1px solid var(--forest-line);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-about .about-timeline__item--now .about-timeline__details {
  border-color: var(--amber-deep);
}

.page-about .about-timeline__summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 14px;
  position: relative;
}

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

.page-about .about-timeline__summary h3 {
  margin: 0;
  font-size: 1.14rem;
  font-weight: 600;
  color: var(--white-mint);
  line-height: 1.4;
}

.page-about .about-timeline__summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--electric-cyan);
  margin-left: auto;
  padding-left: 12px;
}

.page-about .about-timeline__details[open] .about-timeline__summary::after {
  content: "−";
  color: var(--amber-gold);
}

.page-about .about-timeline__season {
  font-size: .74rem;
  letter-spacing: .08em;
  color: var(--fog);
  border: 1px solid var(--forest-line);
  border-radius: 999px;
  padding: 3px 10px;
}

.page-about .about-timeline__content {
  padding: 0 20px 20px;
  border-top: 1px solid var(--forest-line);
  margin-top: 2px;
  padding-top: 16px;
}

.page-about .about-timeline__content p {
  margin: 0;
  font-size: .98rem;
  line-height: 1.9;
  color: var(--mist);
}

.page-about .about-timeline__note {
  font-size: .82rem;
  line-height: 1.75;
  color: var(--fog);
  border-left: 2px solid var(--forest-line);
  padding-left: 12px;
}

/* ---------- Team ---------- */
.page-about .about-team {
  background: var(--ink-forest);
}

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

.page-about .about-team__text {
  color: var(--mist);
  font-size: 1.02rem;
  line-height: 1.9;
  margin: 16px 0 28px;
  max-width: 56ch;
}

.page-about .about-team__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--forest-line);
  border: 1px solid var(--forest-line);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-about .about-team__member {
  background: var(--forest-card);
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 18px;
  align-items: start;
}

.page-about .about-team__member-code {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: rgba(59,242,210,.1);
  border: 1px solid var(--forest-line);
  color: var(--electric-cyan);
  font-size: .9rem;
}

.page-about .about-team__member h3 {
  margin: 2px 0 6px;
  font-size: 1.02rem;
  color: var(--white-mint);
  font-weight: 600;
}

.page-about .about-team__member p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--fog);
}

.page-about .about-team__figure {
  margin: 0;
  border: 1px solid var(--forest-line);
  border-radius: var(--radius-organic);
  background: var(--forest-card);
  overflow: hidden;
  align-self: start;
}

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

.page-about .about-team__figure figcaption {
  margin: 0;
  padding: 14px 18px 18px;
  border-top: 1px solid var(--forest-line);
}

/* ---------- Ecosystem ---------- */
.page-about .about-ecosystem {
  background:
    radial-gradient(90% 120% at 8% 0%, rgba(154,140,255,.12) 0%, transparent 58%),
    var(--forest-deep);
}

.page-about .about-ecosystem__grid {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1fr);
  margin-top: 28px;
}

.page-about .about-ecosystem__cell {
  background: var(--forest-card);
  border: 1px solid var(--forest-line);
  border-radius: var(--radius-m);
  padding: 24px 22px;
}

.page-about .about-ecosystem__cell--wide {
  border-radius: var(--radius-organic);
  background: linear-gradient(155deg, rgba(59,242,210,.1) 0%, var(--forest-card) 62%);
  border-color: var(--forest-line);
}

.page-about .about-ecosystem__cell h3 {
  margin: 0 0 12px;
  font-size: 1.16rem;
  color: var(--white-mint);
  font-weight: 600;
}

.page-about .about-ecosystem__cell p {
  margin: 0;
  font-size: .96rem;
  line-height: 1.9;
  color: var(--mist);
}

.page-about .about-ecosystem__tags {
  margin-top: 18px;
  gap: 8px;
}

.page-about .about-ecosystem__tags .tag {
  color: var(--cyan-soft);
  border-color: var(--forest-line);
  background: rgba(6,26,20,.5);
}

/* ---------- Reach ---------- */
.page-about .about-reach {
  background: var(--ink-forest);
}

.page-about .about-reach__head {
  max-width: 62ch;
}

.page-about .about-reach__intro {
  margin: 16px 0 0;
  color: var(--fog);
  line-height: 1.85;
}

.page-about .about-reach__grid {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1fr);
  margin-top: 34px;
}

.page-about .about-reach__card {
  position: relative;
  border: 1px solid var(--forest-line);
  border-radius: var(--radius-m);
  padding: 26px 22px 24px;
  background: var(--forest-deep);
  overflow: hidden;
}

.page-about .about-reach__card::after {
  content: "";
  position: absolute;
  right: -30px;
  bottom: -30px;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  border: 1px solid var(--forest-line);
}

.page-about .about-reach__idx {
  font-size: .78rem;
  letter-spacing: .14em;
  color: var(--electric-cyan);
}

.page-about .about-reach__card h3 {
  margin: 12px 0 10px;
  font-size: 1.24rem;
  color: var(--white-mint);
  font-weight: 600;
}

.page-about .about-reach__card p {
  margin: 0;
  font-size: .95rem;
  line-height: 1.85;
  color: var(--fog);
}

.page-about .about-reach__card--accent {
  background: linear-gradient(158deg, rgba(232,180,90,.16) 0%, var(--forest-deep) 70%);
  border-color: var(--amber-deep);
}

.page-about .about-reach__card--accent .about-reach__idx {
  color: var(--amber-gold);
}

.page-about .about-reach__card--accent p {
  color: var(--mist);
}

.page-about .about-reach__note {
  margin: 26px 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--electric-cyan);
  background: rgba(18,51,40,.6);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  font-size: .9rem;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- Next ---------- */
.page-about .about-next {
  background: linear-gradient(180deg, var(--ink-forest) 0%, rgba(11,36,28,.9) 100%);
  padding-bottom: 88px;
}

.page-about .about-next__panel {
  display: grid;
  gap: 26px;
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
  padding: 34px 26px;
  border: 1px solid var(--forest-line);
  border-radius: var(--radius-organic);
  background:
    radial-gradient(80% 140% at 100% 0%, rgba(59,242,210,.14) 0%, transparent 60%),
    var(--forest-card);
}

.page-about .about-next__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.6vw, 2.1rem);
  font-weight: 700;
  line-height: 1.25;
  margin: 10px 0 0;
  color: var(--white-mint);
  letter-spacing: -.01em;
}

.page-about .about-next__links {
  gap: 10px;
}

/* ---------- Responsive ---------- */
@media (min-width: 760px) {
  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

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

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

  .page-about .about-ecosystem__cell--wide {
    grid-column: 1 / -1;
  }

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

  .page-about .about-next__panel {
    grid-template-columns: minmax(0, 1fr) auto;
    padding: 40px 36px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero {
    padding: 120px 0 88px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(280px, .82fr);
    gap: 56px;
    align-items: center;
  }

  .page-about .about-hero__board {
    padding: 32px 28px 26px;
  }

  .page-about .about-timeline-section__head {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 48px;
  }

  .page-about .about-timeline__item {
    grid-template-columns: 96px minmax(0, 1fr) 250px;
    gap: 22px;
    padding-left: 34px;
    align-items: start;
  }

  .page-about .about-timeline__code {
    padding-top: 22px;
  }

  .page-about .about-timeline__note {
    padding-top: 22px;
    padding-left: 16px;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    gap: 52px;
    align-items: start;
  }

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

@media (min-width: 1280px) {
  .page-about .about-ladder {
    overflow-x: visible;
    grid-auto-flow: row;
    grid-template-columns: repeat(9, minmax(0, 1fr));
  }

  .page-about .about-ladder__item em {
    font-size: .78rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-ladder {
    scroll-behavior: auto;
  }
}

.page-about {
  --about-corner: 40px;
  background: var(--ink-forest);
  color: var(--mist);
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 96px 0 64px;
  background:
    radial-gradient(120% 100% at 88% 0%, rgba(59,242,210,.16) 0%, transparent 56%),
    linear-gradient(160deg, var(--forest-deep) 0%, var(--ink-forest) 62%);
}

.page-about .about-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  clip-path: polygon(0 0, 100% 0, 100% 78%, 62% 100%, 0 88%);
  opacity: .38;
}

.page-about .about-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(.55) brightness(.7);
}

.page-about .about-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(150deg, rgba(6,26,20,.35) 0%, rgba(6,26,20,.95) 70%),
    repeating-linear-gradient(90deg, rgba(59,242,210,.07) 0 1px, transparent 1px 72px);
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.page-about .breadcrumbs {
  margin-bottom: 40px;
}

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

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.5rem, 8vw, 4.6rem);
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--white-mint);
  margin: 12px 0 22px;
}

.page-about .about-hero__title-accent {
  color: var(--electric-cyan);
  display: inline-block;
}

.page-about .about-hero__sub {
  max-width: 46ch;
  color: var(--mist);
}

.page-about .about-hero__actions {
  margin-top: 30px;
  gap: 12px;
  align-items: center;
}

.page-about .about-hero__board {
  position: relative;
  padding: 26px 22px 22px;
  background: linear-gradient(165deg, var(--forest-card) 0%, rgba(11,36,28,.92) 100%);
  border: 1px solid var(--forest-line);
  border-radius: var(--radius-organic);
  box-shadow: var(--shadow-card);
  min-width: 0;
}

.page-about .about-hero__board::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 22px;
  width: 68px;
  height: 3px;
  background: var(--electric-cyan);
  border-radius: 2px;
}

.page-about .about-hero__board-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-about .about-hero__version {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--cyan-soft);
  letter-spacing: .06em;
}

.page-about .about-hero__board-line {
  margin: 22px 0 4px;
  font-size: .82rem;
  letter-spacing: .08em;
  color: var(--fog);
}

.page-about .about-hero__board-num {
  font-size: clamp(3.2rem, 11vw, 4.6rem);
  line-height: 1;
  font-weight: 600;
  color: var(--amber-gold);
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-about .about-hero__unit {
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 500;
  color: var(--fog);
  letter-spacing: .04em;
}

.page-about .about-hero__board-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--forest-line);
  display: grid;
  gap: 12px;
  font-size: .92rem;
  color: var(--mist);
  line-height: 1.7;
}

.page-about .about-hero__board-list .mono {
  color: var(--electric-cyan);
  font-weight: 600;
  margin-right: 4px;
}

/* ---------- Origin ---------- */
.page-about .about-origin {
  background: var(--ink-forest);
}

.page-about .about-origin__grid {
  display: grid;
  gap: 32px;
  grid-template-columns: minmax(0, 1fr);
}

.page-about .about-origin__text {
  margin: 0 0 18px;
  font-size: 1.02rem;
  line-height: 1.9;
  color: var(--mist);
}

.page-about .about-origin__aside {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--forest-line);
  border: 1px solid var(--forest-line);
  border-radius: var(--radius-m);
  overflow: hidden;
  align-self: start;
}

.page-about .about-origin__stat {
  background: var(--forest-deep);
  padding: 18px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.page-about .about-origin__stat-label {
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--fog);
  line-height: 1.5;
}

.page-about .about-origin__stat-num {
  font-size: 1.9rem;
  font-weight: 600;
  color: var(--electric-cyan);
  line-height: 1;
}

.page-about .about-origin__aside .footnote {
  grid-column: 1 / -1;
  margin: 0;
  padding: 16px 14px;
  background: var(--forest-deep);
  border-top: 1px solid var(--forest-line);
  line-height: 1.8;
}

/* ---------- Timeline section ---------- */
.page-about .about-timeline-section {
  background: linear-gradient(180deg, var(--ink-forest) 0%, var(--forest-deep) 18%, var(--forest-deep) 88%, var(--ink-forest) 100%);
}

.page-about .about-timeline-section__head {
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 1fr);
  align-items: end;
  margin-bottom: 40px;
}

.page-about .about-timeline-section__intro {
  max-width: 52ch;
  margin: 16px 0 0;
  color: var(--fog);
  line-height: 1.85;
}

.page-about .about-timeline-section__figure {
  margin: 0;
  border-radius: var(--radius-m);
  overflow: hidden;
  border: 1px solid var(--forest-line);
  background: var(--forest-card);
}

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

/* ladder */
.page-about .about-ladder {
  list-style: none;
  margin: 0 0 46px;
  padding: 0 0 8px;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(132px, 1fr);
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .about-ladder__item {
  position: relative;
  background: var(--forest-card);
  border: 1px solid var(--forest-line);
  border-radius: var(--radius-s);
  padding: 14px 12px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.page-about .about-ladder__item .mono {
  font-size: .78rem;
  color: var(--electric-cyan);
  letter-spacing: .1em;
}

.page-about .about-ladder__item em {
  font-style: normal;
  font-size: .82rem;
  line-height: 1.5;
  color: var(--mist);
}

.page-about .about-ladder__item::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 8px;
  height: 2px;
  background: var(--forest-line);
  border-radius: 2px;
}

.page-about .about-ladder__item--now {
  border-color: var(--amber-deep);
  background: linear-gradient(160deg, rgba(232,180,90,.14), var(--forest-card));
}

.page-about .about-ladder__item--now .mono {
  color: var(--amber-gold);
}

.page-about .about-ladder__item--now::after {
  background: var(--amber-gold);
}

/* timeline list */
.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  display: grid;
  gap: 18px;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 7px;
  width: 2px;
  background: linear-gradient(180deg, var(--electric-cyan) 0%, var(--forest-line) 55%, var(--amber-deep) 100%);
  opacity: .55;
}

.page-about .about-timeline__item {
  position: relative;
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(0, 1fr);
  padding-left: 30px;
}

.page-about .about-timeline__item > * {
  min-width: 0;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--ink-forest);
  border: 2px solid var(--electric-cyan);
}

.page-about .about-timeline__item--now::before {
  border-color: var(--amber-gold);
  box-shadow: 0 0 0 5px rgba(232,180,90,.14);
}

.page-about .about-timeline__code {
  font-size: .78rem;
  letter-spacing: .12em;
  color: var(--fog);
}

.page-about .about-timeline__details {
  background: var(--forest-card);
  border: 1px solid var(--forest-line);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-about .about-timeline__item--now .about-timeline__details {
  border-color: var(--amber-deep);
}

.page-about .about-timeline__summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 14px;
  position: relative;
}

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

.page-about .about-timeline__summary h3 {
  margin: 0;
  font-size: 1.14rem;
  font-weight: 600;
  color: var(--white-mint);
  line-height: 1.4;
}

.page-about .about-timeline__summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--electric-cyan);
  margin-left: auto;
  padding-left: 12px;
}

.page-about .about-timeline__details[open] .about-timeline__summary::after {
  content: "−";
  color: var(--amber-gold);
}

.page-about .about-timeline__season {
  font-size: .74rem;
  letter-spacing: .08em;
  color: var(--fog);
  border: 1px solid var(--forest-line);
  border-radius: 999px;
  padding: 3px 10px;
}

.page-about .about-timeline__content {
  padding: 16px 20px 20px;
  border-top: 1px solid var(--forest-line);
}

.page-about .about-timeline__content p {
  margin: 0;
  font-size: .98rem;
  line-height: 1.9;
  color: var(--mist);
}

.page-about .about-timeline__note {
  font-size: .82rem;
  line-height: 1.75;
  color: var(--fog);
  border-left: 2px solid var(--forest-line);
  padding-left: 12px;
}

/* ---------- Team ---------- */
.page-about .about-team {
  background: var(--ink-forest);
}

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

.page-about .about-team__text {
  color: var(--mist);
  font-size: 1.02rem;
  line-height: 1.9;
  margin: 16px 0 28px;
  max-width: 56ch;
}

.page-about .about-team__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--forest-line);
  border: 1px solid var(--forest-line);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-about .about-team__member {
  background: var(--forest-card);
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 18px;
  align-items: start;
}

.page-about .about-team__member-code {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: rgba(59,242,210,.1);
  border: 1px solid var(--forest-line);
  color: var(--electric-cyan);
  font-size: .9rem;
}

.page-about .about-team__member h3 {
  margin: 2px 0 6px;
  font-size: 1.02rem;
  color: var(--white-mint);
  font-weight: 600;
}

.page-about .about-team__member p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--fog);
}

.page-about .about-team__figure {
  margin: 0;
  border: 1px solid var(--forest-line);
  border-radius: var(--radius-organic);
  background: var(--forest-card);
  overflow: hidden;
  align-self: start;
}

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

.page-about .about-team__figure figcaption {
  margin: 0;
  padding: 14px 18px 18px;
  border-top: 1px solid var(--forest-line);
  line-height: 1.8;
}

/* ---------- Ecosystem ---------- */
.page-about .about-ecosystem {
  background:
    radial-gradient(90% 120% at 8% 0%, rgba(154,140,255,.12) 0%, transparent 58%),
    var(--forest-deep);
}

.page-about .about-ecosystem__grid {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1fr);
  margin-top: 28px;
}

.page-about .about-ecosystem__cell {
  background: var(--forest-card);
  border: 1px solid var(--forest-line);
  border-radius: var(--radius-m);
  padding: 24px 22px;
}

.page-about .about-ecosystem__cell--wide {
  border-radius: var(--radius-organic);
  background: linear-gradient(155deg, rgba(59,242,210,.1) 0%, var(--forest-card) 62%);
}

.page-about .about-ecosystem__cell h3 {
  margin: 0 0 12px;
  font-size: 1.16rem;
  color: var(--white-mint);
  font-weight: 600;
}

.page-about .about-ecosystem__cell p {
  margin: 0;
  font-size: .96rem;
  line-height: 1.9;
  color: var(--mist);
}

.page-about .about-ecosystem__tags {
  margin-top: 18px;
  gap: 8px;
}

.page-about .about-ecosystem__tags .tag {
  color: var(--cyan-soft);
  border-color: var(--forest-line);
  background: rgba(6,26,20,.5);
}

/* ---------- Reach ---------- */
.page-about .about-reach {
  background: var(--ink-forest);
}

.page-about .about-reach__head {
  max-width: 62ch;
}

.page-about .about-reach__intro {
  margin: 16px 0 0;
  color: var(--fog);
  line-height: 1.85;
}

.page-about .about-reach__grid {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1fr);
  margin-top: 34px;
}

.page-about .about-reach__card {
  position: relative;
  border: 1px solid var(--forest-line);
  border-radius: var(--radius-m);
  padding: 26px 22px 24px;
  background: var(--forest-deep);
  overflow: hidden;
}

.page-about .about-reach__card::after {
  content: "";
  position: absolute;
  right: -30px;
  bottom: -30px;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  border: 1px solid var(--forest-line);
}

.page-about .about-reach__idx {
  font-size: .78rem;
  letter-spacing: .14em;
  color: var(--electric-cyan);
}

.page-about .about-reach__card h3 {
  margin: 12px 0 10px;
  font-size: 1.24rem;
  color: var(--white-mint);
  font-weight: 600;
}

.page-about .about-reach__card p {
  margin: 0;
  font-size: .95rem;
  line-height: 1.85;
  color: var(--fog);
  position: relative;
  z-index: 1;
}

.page-about .about-reach__card--accent {
  background: linear-gradient(158deg, rgba(232,180,90,.16) 0%, var(--forest-deep) 70%);
  border-color: var(--amber-deep);
}

.page-about .about-reach__card--accent .about-reach__idx {
  color: var(--amber-gold);
}

.page-about .about-reach__card--accent p {
  color: var(--mist);
}

.page-about .about-reach__note {
  margin: 26px 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--electric-cyan);
  background: rgba(18,51,40,.6);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  font-size: .9rem;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- Next ---------- */
.page-about .about-next {
  background: linear-gradient(180deg, var(--ink-forest) 0%, rgba(11,36,28,.9) 100%);
  padding-bottom: 88px;
}

.page-about .about-next__panel {
  display: grid;
  gap: 26px;
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
  padding: 34px 26px;
  border: 1px solid var(--forest-line);
  border-radius: var(--radius-organic);
  background:
    radial-gradient(80% 140% at 100% 0%, rgba(59,242,210,.14) 0%, transparent 60%),
    var(--forest-card);
}

.page-about .about-next__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.6vw, 2.1rem);
  font-weight: 700;
  line-height: 1.25;
  margin: 10px 0 0;
  color: var(--white-mint);
  letter-spacing: -.01em;
}

.page-about .about-next__links {
  gap: 10px;
}

/* ---------- Responsive ---------- */
@media (min-width: 760px) {
  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

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

  .page-about .about-ecosystem__cell--wide {
    grid-column: 1 / -1;
  }

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

  .page-about .about-next__panel {
    grid-template-columns: minmax(0, 1fr) auto;
    padding: 40px 36px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero {
    padding: 120px 0 88px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(280px, .82fr);
    gap: 56px;
    align-items: center;
  }

  .page-about .about-hero__board {
    padding: 32px 28px 26px;
  }

  .page-about .about-timeline-section__head {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 48px;
  }

  .page-about .about-timeline__item {
    grid-template-columns: 96px minmax(0, 1fr) 250px;
    gap: 22px;
    padding-left: 34px;
    align-items: start;
  }

  .page-about .about-timeline__code {
    padding-top: 22px;
  }

  .page-about .about-timeline__note {
    padding-top: 22px;
    padding-left: 16px;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    gap: 52px;
    align-items: start;
  }

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

@media (min-width: 1280px) {
  .page-about .about-ladder {
    overflow-x: visible;
    grid-auto-flow: row;
    grid-template-columns: repeat(9, minmax(0, 1fr));
  }

  .page-about .about-ladder__item em {
    font-size: .78rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-ladder {
    scroll-behavior: auto;
  }
}