.page-about {
  --about-gap: 1.25rem;
  background: var(--ink-900);
  color: var(--bone);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-about .container {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--about-gap);
}

/* ---------- hero ---------- */
.page-about .about-hero {
  position: relative;
  padding: 2rem 0 2.75rem;
  background:
    radial-gradient(90% 70% at 88% 0%, rgba(29, 58, 45, 0.85), transparent 65%),
    var(--ink-900);
  border-bottom: 1px solid var(--line);
}

.page-about .about-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--ash);
  margin-bottom: 1.5rem;
}

.page-about .about-crumbs__sep {
  color: var(--slate);
}

.page-about .breadcrumbs__link {
  color: var(--ash);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-about .breadcrumbs__link:hover,
.page-about .breadcrumbs__link:focus-visible {
  color: var(--mint);
  border-bottom-color: var(--mint);
}

.page-about .breadcrumbs__current {
  color: var(--bone);
}

.page-about .about-hero__grid {
  display: grid;
  gap: 2rem;
}

.page-about .about-hero .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--mint);
  margin: 0 0 1rem;
  padding-left: 0.9rem;
  border-left: 3px solid var(--mint);
}

.page-about .about-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.1rem, 7.4vw, 4.3rem);
  line-height: 1.02;
  letter-spacing: -0.015em;
  margin: 0 0 1.25rem;
  color: var(--bone);
  text-wrap: balance;
}

.page-about .about-hero__text {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ash);
  max-width: 62ch;
  margin: 0 0 1.6rem;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-about .about-hero__actions .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.35rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  border-radius: var(--radius);
  transition: transform 0.18s var(--ease), background-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-about .about-hero__actions .btn--primary {
  background: var(--mint);
  color: var(--ink-900);
  border: 1px solid var(--mint);
  font-weight: 700;
}

.page-about .about-hero__actions .btn--primary:hover,
.page-about .about-hero__actions .btn--primary:focus-visible {
  background: #8ff8cd;
  transform: translateY(-2px);
}

.page-about .about-hero__actions .btn--ghost {
  background: transparent;
  color: var(--bone);
  border: 1px solid var(--line-soft);
}

.page-about .about-hero__actions .btn--ghost:hover,
.page-about .about-hero__actions .btn--ghost:focus-visible {
  border-color: var(--mint);
  color: var(--mint);
  transform: translateY(-2px);
}

.page-about .about-facts {
  background: var(--ink-800);
  border: 1px solid var(--line-soft);
  border-top: 3px solid var(--amber);
  padding: 1.15rem 1.15rem 0.4rem;
}

.page-about .about-facts__label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: var(--ash);
  margin: 0 0 0.9rem;
}

.page-about .about-facts__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
}

.page-about .about-fact {
  padding-bottom: 0.9rem;
  border-bottom: 1px dashed rgba(67, 87, 77, 0.7);
}

.page-about .about-fact__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.9rem;
  line-height: 1;
  color: var(--mint);
  text-shadow: 0 0 12px rgba(101, 242, 183, 0.28);
}

.page-about .about-fact__unit {
  font-size: 0.7rem;
  color: var(--ash);
  margin-left: 0.2rem;
}

.page-about .about-fact__label {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.76rem;
  line-height: 1.5;
  color: var(--ash);
}

/* ---------- chapter nav ---------- */
.page-about .about-chapters {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(16, 22, 20, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(6px);
}

.page-about .about-chapters__list {
  display: flex;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0.5rem 0;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-about .about-chapters .chapter-nav__link {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  padding: 0.45rem 0.7rem;
  white-space: nowrap;
  font-size: 0.82rem;
  color: var(--ash);
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.page-about .about-chapters__no {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--slate);
}

.page-about .about-chapters .chapter-nav__link:hover,
.page-about .about-chapters .chapter-nav__link:focus-visible,
.page-about .about-chapters .chapter-nav__link[data-active] {
  color: var(--mint);
  border-color: var(--line);
  background: rgba(101, 242, 183, 0.07);
}

.page-about .about-chapters .chapter-nav__link[data-active] .about-chapters__no {
  color: var(--mint);
}

/* ---------- chapters ---------- */
.page-about .about-chapter {
  position: relative;
  padding: 2.6rem 0 2.8rem;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-chapter--moss {
  background: var(--moss);
}

.page-about .about-chapter--ink {
  background: var(--ink-800);
}

.page-about .about-chapter--clay::before,
.page-about .about-chapter--moss::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
}

.page-about .about-chapter--clay::before {
  background: var(--clay);
}

.page-about .about-chapter--moss::before {
  background: var(--mint);
  opacity: 0.75;
}

.page-about .about-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.4rem 1rem;
  align-items: baseline;
  margin-bottom: 1.8rem;
}

.page-about .about-head__index {
  font-family: var(--font-mono);
  font-size: clamp(2.4rem, 9vw, 4.2rem);
  font-weight: 700;
  line-height: 0.85;
  color: transparent;
  -webkit-text-stroke: 1px var(--slate);
  letter-spacing: -0.04em;
}

.page-about .about-head__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.6rem, 5.2vw, 2.9rem);
  line-height: 1.06;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--bone);
}

.page-about .about-head__note {
  grid-column: 2;
  margin: 0.55rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.05em;
  color: var(--ash);
}

/* ---------- split layouts ---------- */
.page-about .about-split {
  display: grid;
  gap: 1.8rem;
}

.page-about .about-split__main p {
  margin: 0 0 1.1rem;
  font-size: 0.98rem;
  line-height: 1.85;
  color: rgba(239, 233, 218, 0.92);
}

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

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

.page-about .about-figure .media-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  background: var(--moss);
  border-radius: var(--radius);
  box-shadow: 8px 8px 0 -2px rgba(7, 26, 19, 0.55);
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.88);
}

.page-about .about-figure .media-frame__caption {
  display: block;
  margin-top: 0.75rem;
  font-size: 0.76rem;
  line-height: 1.6;
  color: var(--ash);
  border-left: 2px solid var(--clay);
  padding-left: 0.7rem;
}

.page-about .about-aside {
  border-left: 1px solid var(--line);
  padding-left: 1rem;
}

.page-about .about-aside__kicker {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: var(--amber);
  margin: 0 0 0.8rem;
}

.page-about .about-aside__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.page-about .about-aside__list li {
  position: relative;
  padding-left: 0.95rem;
  font-size: 0.84rem;
  line-height: 1.6;
  color: var(--ash);
}

.page-about .about-aside__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 6px;
  height: 6px;
  background: var(--mint);
  transform: rotate(45deg);
}

/* ---------- values ---------- */
.page-about .value-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-about .value {
  position: relative;
  background: rgba(7, 26, 19, 0.42);
  border: 1px solid rgba(101, 242, 183, 0.14);
  border-left: 4px solid var(--clay);
  padding: 1.25rem 1.15rem;
  border-radius: var(--radius);
}

.page-about .value__index {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--mint);
  margin-bottom: 0.5rem;
}

.page-about .value__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: 0.02em;
  margin: 0 0 0.55rem;
  color: var(--bone);
}

.page-about .value__text {
  margin: 0 0 0.85rem;
  font-size: 0.9rem;
  line-height: 1.8;
  color: rgba(239, 233, 218, 0.86);
}

.page-about .value__tag {
  display: inline-block;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--amber);
  border: 1px solid rgba(245, 166, 35, 0.45);
  padding: 0.22rem 0.55rem;
  border-radius: var(--radius);
}

/* ---------- timeline ---------- */
.page-about .timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--line);
  margin-left: 0.35rem;
}

.page-about .timeline__item {
  position: relative;
  padding: 0 0 1.1rem 1.3rem;
}

.page-about .timeline__item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 0.65rem;
  width: 9px;
  height: 9px;
  background: var(--amber);
  transform: rotate(45deg);
}

.page-about .timeline__year {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  color: var(--mint);
  margin-bottom: 0.4rem;
}

.page-about .timeline__panel {
  border: 1px solid var(--line-soft);
  background: rgba(16, 22, 20, 0.7);
  border-radius: var(--radius);
}

.page-about .timeline__panel summary {
  cursor: pointer;
  list-style: none;
  padding: 0.65rem 0.85rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--bone);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
}

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

.page-about .timeline__panel summary::after {
  content: "+";
  font-family: var(--font-mono);
  color: var(--amber);
  font-size: 1rem;
  line-height: 1;
}

.page-about .timeline__panel[open] summary::after {
  content: "−";
}

.page-about .timeline__panel[open] summary {
  border-bottom: 1px solid var(--line-soft);
  color: var(--mint);
}

.page-about .timeline__panel p {
  margin: 0;
  padding: 0.7rem 0.85rem 0.85rem;
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--ash);
}

.page-about .about-figure--texture {
  display: none;
}

/* ---------- team ---------- */
.page-about .about-intro {
  max-width: 66ch;
  margin: 0 0 1.8rem;
  font-size: 0.96rem;
  line-height: 1.85;
  color: rgba(239, 233, 218, 0.88);
}

.page-about .team-grid {
  display: grid;
  gap: 1rem;
}

.page-about .team-card {
  position: relative;
  background: var(--ink-900);
  border: 1px solid var(--line-soft);
  padding: 1.15rem 1.1rem 1.25rem;
  border-radius: var(--radius);
  box-shadow: 7px 7px 0 -1px rgba(29, 58, 45, 0.95);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-about .team-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 10px 10px 0 -1px rgba(196, 105, 79, 0.6);
}

.page-about .team-card__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 2.4rem;
  line-height: 1;
  color: var(--mint);
  margin-bottom: 0.5rem;
  text-shadow: 0 0 14px rgba(101, 242, 183, 0.25);
}

.page-about .team-card__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.03em;
  margin: 0 0 0.5rem;
  color: var(--bone);
}

.page-about .team-card__text {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--ash);
}

.page-about .about-footnote {
  margin: 1.6rem 0 0;
  padding-top: 1rem;
  border-top: 1px dashed rgba(67, 87, 77, 0.8);
  max-width: 70ch;
  font-size: 0.84rem;
  line-height: 1.75;
  color: var(--ash);
}

/* ---------- network ---------- */
.page-about .network {
  display: grid;
  gap: 0.9rem;
}

.page-about .network__visual {
  border: 1px solid rgba(101, 242, 183, 0.16);
  background: rgba(7, 26, 19, 0.4);
  padding: 0.75rem;
  border-radius: var(--radius);
}

.page-about .network__visual svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .network__caption {
  margin: 0;
  font-size: 0.78rem;
  line-height: 1.65;
  color: var(--ash);
}

.page-about .network__list {
  display: grid;
  gap: 0.6rem;
  align-content: start;
}

.page-about .acc {
  border: 1px solid rgba(239, 233, 218, 0.14);
  background: rgba(7, 26, 19, 0.32);
  border-radius: var(--radius);
}

.page-about .acc__summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 0.85rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--bone);
}

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

.page-about .acc[open] .acc__summary {
  border-bottom: 1px solid rgba(239, 233, 218, 0.12);
}

.page-about .acc__tag {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.12em;
  padding: 0.15rem 0.4rem;
  border-radius: var(--radius);
  border: 1px solid currentColor;
}

.page-about .tag--mint {
  color: var(--mint);
}

.page-about .tag--amber {
  color: var(--amber);
}

.page-about .tag--clay {
  color: #E39A83;
}

.page-about .tag--violet {
  color: var(--violet);
}

.page-about .acc__body {
  margin: 0;
  padding: 0.7rem 0.85rem 0.85rem;
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--ash);
}

.page-about .about-figure--wide {
  margin-top: 1.6rem;
}

/* ---------- commit ---------- */
.page-about .commit {
  display: grid;
  gap: 1.4rem;
}

.page-about .commit__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-about .commit__step {
  border-top: 1px solid rgba(239, 233, 218, 0.16);
  padding-top: 0.85rem;
}

.page-about .commit__no {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--amber);
}

.page-about .commit__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  margin: 0.35rem 0 0.45rem;
  color: var(--bone);
}

.page-about .commit__step p {
  margin: 0;
  font-size: 0.87rem;
  line-height: 1.75;
  color: rgba(239, 233, 218, 0.84);
}

.page-about .commit__panel {
  background: var(--ink-900);
  border: 1px solid rgba(239, 233, 218, 0.16);
  border-top: 3px solid var(--mint);
  padding: 1.2rem 1.1rem 1.3rem;
  border-radius: var(--radius);
}

.page-about .commit__panel-kicker {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: var(--mint);
  margin: 0 0 0.7rem;
}

.page-about .commit__panel-text {
  margin: 0 0 1.1rem;
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--ash);
}

.page-about .commit__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.page-about .commit__actions .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.62rem 1.05rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  text-decoration: none;
  border-radius: var(--radius);
  transition: transform 0.18s var(--ease), background-color 0.18s var(--ease), color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-about .commit__actions .btn--primary {
  background: var(--mint);
  color: var(--ink-900);
  border: 1px solid var(--mint);
  font-weight: 700;
}

.page-about .commit__actions .btn--primary:hover,
.page-about .commit__actions .btn--primary:focus-visible {
  background: #8ff8cd;
  transform: translateY(-2px);
}

.page-about .commit__actions .btn--ghost {
  background: transparent;
  color: var(--bone);
  border: 1px solid rgba(239, 233, 218, 0.3);
}

.page-about .commit__actions .btn--ghost:hover,
.page-about .commit__actions .btn--ghost:focus-visible {
  border-color: var(--mint);
  color: var(--mint);
  transform: translateY(-2px);
}

/* ---------- responsive ---------- */
@media (min-width: 640px) {
  .page-about {
    --about-gap: 2rem;
  }

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

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

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

@media (min-width: 900px) {
  .page-about {
    --about-gap: 2.5rem;
  }

  .page-about .about-hero {
    padding: 3.2rem 0 4rem;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    gap: 3rem;
    align-items: start;
  }

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

  .page-about .about-chapter {
    padding: 4rem 0 4.4rem;
  }

  .page-about .about-head {
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 1.6rem;
    align-items: end;
    margin-bottom: 2.6rem;
  }

  .page-about .about-head__note {
    grid-column: 3;
    text-align: right;
    margin: 0 0 0.4rem;
  }

  .page-about .about-split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 3rem;
  }

  .page-about .about-split--timeline {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.6fr);
    gap: 2.5rem;
  }

  .page-about .about-split--network {
    grid-template-columns: minmax(0, 0.68fr) minmax(0, 1fr);
    gap: 2.5rem;
    align-items: start;
  }

  .page-about .value-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.2rem;
  }

  .page-about .about-figure--texture {
    display: block;
  }

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

  .page-about .commit {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    gap: 3rem;
    align-items: start;
  }

  .page-about .commit__steps {
    gap: 1.3rem;
  }
}
<<<END>>>