.page-about {
  --about-gap: 1.25rem;
  --about-line: rgba(91, 140, 255, 0.28);
  --about-soft: rgba(47, 230, 196, 0.1);
  padding-top: calc(var(--header-h) + 1.25rem);
  color: var(--body-text);
}

.page-about * {
  box-sizing: border-box;
}

.page-about [id] {
  scroll-margin-top: calc(var(--header-h) + 1.5rem);
}

.page-about img {
  max-width: 100%;
  height: auto;
}

.page-about a:focus-visible,
.page-about [tabindex]:focus-visible {
  outline: 2px solid var(--aqua);
  outline-offset: 3px;
}

.page-about .about-crumbs {
  padding-bottom: 0.75rem;
}

.page-about .about-hero {
  position: relative;
  overflow: clip;
  padding: 0.5rem 0 clamp(2.5rem, 7vw, 5rem);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: -18% -8% auto;
  height: 115%;
  background:
    radial-gradient(circle at 78% 18%, rgba(47, 230, 196, 0.16), transparent 34%),
    radial-gradient(circle at 10% 0%, rgba(91, 140, 255, 0.14), transparent 30%);
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 11%;
  width: min(78vw, 900px);
  aspect-ratio: 1.9;
  border: 1px solid rgba(91, 140, 255, 0.18);
  border-radius: 50%;
  transform: translateX(-50%) rotate(-8deg);
  pointer-events: none;
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}

.page-about .about-hero h1 {
  max-width: 12ch;
  margin: 0.55rem 0 1rem;
  color: var(--paper);
  font-size: clamp(2.5rem, 7vw, 5.4rem);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: 0.02em;
  text-wrap: balance;
}

.page-about .about-accent {
  color: var(--aqua);
}

.page-about .about-hero .lede {
  max-width: 62ch;
  font-size: clamp(1rem, 1.2vw, 1.08rem);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.35rem;
}

.page-about .hero-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
  margin: 1.6rem 0 0;
  padding: 1rem 0 0;
  border-top: 1px solid var(--orbit);
}

.page-about .hero-facts > div {
  min-width: 0;
}

.page-about .hero-facts dt {
  color: var(--silver);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

.page-about .hero-facts dd {
  margin: 0.15rem 0 0;
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 1.22rem;
}

.page-about .about-hero__media {
  position: relative;
  min-height: 300px;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--orbit);
  background: var(--panel);
  clip-path: var(--cut-lg);
}

.page-about .about-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 300px;
  object-fit: cover;
  opacity: 0.88;
  filter: saturate(0.92);
}

.page-about .about-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, transparent 45%, rgba(5, 8, 15, 0.84)),
    linear-gradient(90deg, rgba(5, 8, 15, 0.18), transparent 36%);
  pointer-events: none;
}

.page-about .about-hero__media .media-frame__label {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  z-index: 2;
}

.page-about .about-origin {
  position: relative;
  padding: clamp(2rem, 5vw, 4rem) 0;
}

.page-about .origin-grid {
  display: grid;
  gap: 1.35rem;
  align-items: start;
}

.page-about .origin-index {
  color: transparent;
  font-family: var(--font-mono);
  font-size: clamp(4rem, 18vw, 9rem);
  line-height: 0.8;
  letter-spacing: -0.06em;
  -webkit-text-stroke: 1px rgba(246, 200, 95, 0.45);
}

.page-about .origin-copy {
  min-width: 0;
}

.page-about .origin-copy h2 {
  max-width: 22ch;
  margin: 0.3rem 0 1rem;
}

.page-about .origin-copy p {
  max-width: 68ch;
  margin: 0 0 1rem;
}

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

.page-about .origin-note {
  padding: 1.25rem;
  border-left: 3px solid var(--aqua);
  background: linear-gradient(135deg, rgba(47, 230, 196, 0.1), rgba(11, 22, 40, 0.9));
}

.page-about .origin-note .mono {
  color: var(--gold);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

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

.page-about .about-layout {
  display: grid;
  gap: 1.5rem;
  align-items: start;
  padding-top: 0.5rem;
  padding-bottom: clamp(2rem, 6vw, 4rem);
}

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

.page-about .rail-sticky {
  border-top: 1px solid var(--orbit);
  padding-top: 1rem;
}

.page-about .rail-list {
  display: flex;
  gap: 0.45rem;
  margin: 0.8rem 0 0;
  padding: 0 0 0.5rem;
  overflow-x: auto;
  list-style: none;
}

.page-about .rail-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.55rem;
  border: 1px solid rgba(91, 140, 255, 0.2);
  background: rgba(11, 22, 40, 0.55);
  color: var(--silver);
  font-size: 0.82rem;
  line-height: 1.3;
  text-decoration: none;
  white-space: nowrap;
  clip-path: var(--cut-sm);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-about .rail-link .mono {
  color: var(--blue);
  font-size: 0.7rem;
}

.page-about .rail-link:hover,
.page-about .rail-link:focus-visible {
  border-color: var(--aqua);
  background: rgba(47, 230, 196, 0.08);
  color: var(--paper);
}

.page-about .rail-status {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin-top: 0.9rem;
  padding: 0.65rem 0.75rem;
  border: 1px dashed rgba(255, 122, 69, 0.4);
  background: rgba(255, 122, 69, 0.06);
  color: var(--paper);
  font-size: 0.82rem;
}

.page-about .rail-status .mono {
  color: var(--orange);
}

.page-about .about-content {
  display: grid;
  min-width: 0;
}

.page-about .about-chapter {
  padding: 2rem 0;
}

.page-about .about-chapter + .about-chapter {
  border-top: 1px solid rgba(91, 140, 255, 0.16);
}

.page-about .chapter-head {
  margin-bottom: 1.5rem;
}

.page-about .chapter-num {
  display: block;
  margin-bottom: 0.4rem;
  color: transparent;
  font-size: clamp(2.2rem, 7vw, 4rem);
  line-height: 0.9;
  -webkit-text-stroke: 1px rgba(246, 200, 95, 0.45);
}

.page-about .chapter-head .h-section {
  max-width: 22ch;
  margin: 0.2rem 0 0.8rem;
}

.page-about .chapter-head .lede {
  max-width: 64ch;
}

.page-about .method-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
}

.page-about .method-card {
  min-width: 0;
  padding: 1.25rem;
  border: 1px solid var(--orbit);
  background: linear-gradient(160deg, rgba(11, 22, 40, 0.95), rgba(7, 16, 30, 0.9));
  clip-path: var(--cut);
}

.page-about .method-card--lead {
  border-color: rgba(47, 230, 196, 0.42);
  background:
    linear-gradient(145deg, rgba(47, 230, 196, 0.16), rgba(11, 22, 40, 0.95) 55%, rgba(91, 140, 255, 0.12));
}

.page-about .method-card__tag {
  margin: 0 0 0.55rem;
  color: var(--blue);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
}

.page-about .method-card__value {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  line-height: 1.1;
}

.page-about .method-card--lead .method-card__value {
  color: var(--aqua);
}

.page-about .method-card h3 {
  margin: 0 0 0.45rem;
  color: var(--paper);
  font-size: 1.05rem;
}

.page-about .method-card p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.65;
}

.page-about .workflow-grid {
  display: grid;
  gap: 1.5rem;
}

.page-about .workflow-copy {
  min-width: 0;
}

.page-about .workflow-copy > p {
  max-width: 68ch;
  margin: 0;
}

.page-about .workflow-steps {
  display: grid;
  gap: 0;
  margin: 1.2rem 0 0;
  padding: 0;
  list-style: none;
}

.page-about .workflow-step {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: 0.8rem;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(91, 140, 255, 0.16);
}

.page-about .workflow-step:first-child {
  border-top: 1px solid rgba(91, 140, 255, 0.16);
}

.page-about .workflow-step__num {
  padding-top: 0.25rem;
  color: var(--blue);
  font-size: 0.78rem;
}

.page-about .workflow-step h3 {
  margin: 0 0 0.3rem;
  color: var(--paper);
  font-size: 1rem;
}

.page-about .workflow-step p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.65;
}

.page-about .workflow-figure {
  min-width: 0;
  margin: 0;
}

.page-about .workflow-media {
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--orbit);
  background: var(--panel);
  clip-path: var(--cut-lg);
}

.page-about .workflow-media img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-about .workflow-media .media-frame__label {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
}

.page-about .network-grid {
  display: grid;
  gap: 1.35rem;
}

.page-about .network-copy {
  min-width: 0;
}

.page-about .network-copy > p {
  max-width: 68ch;
  margin: 0;
}

.page-about .network-copy a {
  color: var(--aqua);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

.page-about .network-map {
  position: relative;
  min-height: 360px;
  margin-top: 1rem;
  overflow: hidden;
  border: 1px solid var(--orbit);
  background:
    radial-gradient(circle at 50% 50%, rgba(91, 140, 255, 0.14), transparent 38%),
    rgba(7, 16, 30, 0.74);
  clip-path: var(--cut-lg);
}

.page-about .network-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.page-about .network-lines path {
  fill: none;
  stroke: rgba(91, 140, 255, 0.38);
  stroke-width: 1.2;
  stroke-dasharray: 5 7;
}

.page-about .network-lines circle {
  fill: var(--aqua);
  opacity: 0.8;
}

.page-about .network-hub {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 3;
  padding: 0.6rem 0.8rem;
  border: 1px solid rgba(47, 230, 196, 0.5);
  background: rgba(5, 8, 15, 0.92);
  color: var(--paper);
  font-size: 0.84rem;
  letter-spacing: 0.04em;
  white-space: nowrap;
  transform: translate(-50%, -50%);
  clip-path: var(--cut-sm);
  box-shadow: 0 0 24px rgba(47, 230, 196, 0.12);
}

.page-about .network-node {
  position: absolute;
  z-index: 4;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.3rem;
  max-width: 44%;
  padding: 0.5rem 0.6rem;
  border: 1px solid rgba(91, 140, 255, 0.3);
  background: rgba(5, 8, 15, 0.88);
  color: var(--paper);
  font-size: 0.76rem;
  line-height: 1.35;
  cursor: help;
  clip-path: var(--cut-sm);
}

.page-about .network-node--org {
  left: 5%;
  top: 12%;
}

.page-about .network-node--venue {
  right: 5%;
  top: 18%;
}

.page-about .network-node--editor {
  left: 9%;
  bottom: 13%;
}

.page-about .network-node--proof {
  right: 7%;
  bottom: 16%;
}

.page-about .network-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--aqua);
  box-shadow: 0 0 10px rgba(47, 230, 196, 0.7);
}

.page-about .network-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.02em;
}

.page-about .network-pop {
  position: absolute;
  left: 0;
  top: calc(100% + 0.45rem);
  z-index: 6;
  min-width: 160px;
  max-width: 220px;
  padding: 0.55rem 0.65rem;
  border: 1px solid rgba(47, 230, 196, 0.45);
  background: var(--panel);
  color: var(--body-text);
  font-size: 0.76rem;
  line-height: 1.5;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-4px);
  transition: opacity 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-about .network-node--venue .network-pop,
.page-about .network-node--proof .network-pop {
  right: 0;
  left: auto;
}

.page-about .network-node--editor .network-pop,
.page-about .network-node--proof .network-pop {
  top: auto;
  bottom: calc(100% + 0.45rem);
}

.page-about .network-node:hover .network-pop,
.page-about .network-node:focus .network-pop,
.page-about .network-node:focus-within .network-pop {
  opacity: 1;
  transform: translateY(0);
}

.page-about .network-figure {
  min-width: 0;
  margin: 0;
}

.page-about .network-media {
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--orbit);
  background: var(--panel);
  clip-path: var(--cut-lg);
}

.page-about .network-media img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-about .network-media .media-frame__label {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
}

.page-about .about-timeline {
  position: relative;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--gold), rgba(91, 140, 255, 0.2));
}

.page-about .timeline-item {
  position: relative;
  padding: 0 0 1.8rem 2.4rem;
}

.page-about .timeline-item:last-child {
  padding-bottom: 0;
}

.page-about .timeline-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.15rem;
  width: 19px;
  height: 19px;
  border: 1px solid var(--gold);
  border-radius: 50%;
  background: var(--ink);
  box-shadow: 0 0 0 4px rgba(246, 200, 95, 0.08);
}

.page-about .timeline-year {
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
}

.page-about .timeline-item h3 {
  margin: 0.2rem 0 0.35rem;
  color: var(--paper);
  font-size: 1.05rem;
}

.page-about .timeline-item p {
  max-width: 62ch;
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.65;
}

.page-about .timeline-item a {
  color: var(--aqua);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

.page-about .team-intro {
  display: grid;
  gap: 1.2rem;
  margin-top: 1rem;
}

.page-about .team-total {
  display: flex;
  align-items: flex-end;
  gap: 0.8rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--orbit);
}

.page-about .team-total__num {
  color: var(--aqua);
  font-family: var(--font-mono);
  font-size: clamp(4rem, 14vw, 7rem);
  line-height: 0.8;
}

.page-about .team-total p {
  max-width: 30ch;
  margin: 0 0 0.45rem;
}

.page-about .team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
  margin-top: 1.25rem;
}

.page-about .team-card {
  padding: 1.1rem;
  border: 1px solid var(--orbit);
  background: linear-gradient(150deg, rgba(11, 22, 40, 0.95), rgba(7, 16, 30, 0.9));
  clip-path: var(--cut);
}

.page-about .team-card__num {
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 2.1rem;
  line-height: 1;
}

.page-about .team-card h3 {
  margin: 0.5rem 0 0.3rem;
  color: var(--paper);
  font-size: 1rem;
}

.page-about .team-card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.6;
}

.page-about .about-closing {
  padding: clamp(2.5rem, 7vw, 5rem) 0;
  border-top: 1px solid var(--orbit);
  background:
    radial-gradient(circle at 20% 20%, rgba(47, 230, 196, 0.08), transparent 36%),
    linear-gradient(180deg, rgba(11, 22, 40, 0.44), transparent);
}

.page-about .closing-grid {
  display: grid;
  gap: 1.5rem;
  align-items: start;
}

.page-about .about-closing .h-section {
  max-width: 18ch;
}

.page-about .closing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.25rem;
}

.page-about .closing-panel {
  padding: 1.25rem;
  border-color: rgba(47, 230, 196, 0.28);
  background: rgba(11, 22, 40, 0.72);
}

.page-about .contact-line {
  display: grid;
  gap: 0.2rem;
  margin: 1rem 0 0.5rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--orbit);
}

.page-about .contact-line span:first-child {
  color: var(--silver);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

.page-about .contact-line .mono {
  color: var(--paper);
  font-size: 0.82rem;
  overflow-wrap: anywhere;
}

@media (min-width: 640px) {
  .page-about .hero-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-about .method-card--lead {
    grid-column: span 2;
  }

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

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.04fr) minmax(320px, 0.96fr);
  }

  .page-about .about-hero__media {
    min-height: 460px;
  }

  .page-about .about-hero__media img {
    min-height: 460px;
  }

  .page-about .origin-grid {
    grid-template-columns: 130px minmax(0, 1.15fr) minmax(240px, 0.6fr);
  }

  .page-about .workflow-grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: start;
  }

  .page-about .network-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.94fr);
    align-items: start;
  }

  .page-about .closing-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.7fr);
  }
}

@media (min-width: 960px) {
  .page-about .about-layout {
    grid-template-columns: 230px minmax(0, 1fr);
    gap: clamp(2rem, 5vw, 4rem);
  }

  .page-about .rail-sticky {
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
  }

  .page-about .rail-list {
    display: grid;
    gap: 0;
    margin-top: 0.9rem;
    padding: 0;
    overflow: visible;
    border-left: 1px solid var(--about-line);
  }

  .page-about .rail-list li {
    position: relative;
  }

  .page-about .rail-link {
    position: relative;
    width: 100%;
    padding: 0.65rem 0 0.65rem 1.1rem;
    border: 0;
    background: none;
    clip-path: none;
    white-space: normal;
  }

  .page-about .rail-link::before {
    content: "";
    position: absolute;
    left: -4px;
    top: 50%;
    width: 7px;
    height: 7px;
    border: 1px solid var(--blue);
    border-radius: 50%;
    background: var(--ink);
    transform: translateY(-50%);
    transition: background 0.2s var(--ease), border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
  }

  .page-about .rail-link:hover::before,
  .page-about .rail-link:focus-visible::before {
    border-color: var(--aqua);
    background: var(--aqua);
    box-shadow: 0 0 12px rgba(47, 230, 196, 0.5);
  }

  .page-about .chapter-head {
    position: relative;
  }

  .page-about .chapter-num {
    position: absolute;
    top: -1rem;
    right: 0;
    margin: 0;
    opacity: 0.72;
    pointer-events: none;
  }

  .page-about .chapter-head .h-section {
    max-width: 20ch;
    padding-right: 4.5rem;
  }
}

@media (min-width: 1120px) {
  .page-about .method-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .method-card--lead {
    grid-column: span 2;
    grid-row: span 2;
  }
}