.page-about {
  --about-rail: 200px;
  --about-rule: 1px solid var(--rule);
  --about-pad: clamp(20px, 4.4vw, 36px);
  display: block;
}

.page-about .crumbs {
  margin: 20px 0 0;
}

.page-about .about-hero {
  padding: clamp(24px, 5vw, 52px) 0 0;
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-size: clamp(38px, 8.6vw, 104px);
  font-weight: 900;
  font-style: italic;
  line-height: 0.94;
  letter-spacing: -0.02em;
  margin: 16px 0 20px;
  color: var(--ink);
}

.page-about .about-hero .lede {
  max-width: 60ch;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.75;
}

.page-about .about-hero__facts {
  display: grid;
  gap: 18px;
  margin: 30px 0 0;
  padding-top: 22px;
  border-top: var(--about-rule);
}

.page-about .about-hero__facts .fact {
  display: grid;
  gap: 6px;
}

.page-about .about-hero__facts dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.page-about .about-hero__facts dd {
  margin: 0;
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 800;
  color: var(--ink);
}

.page-about .about-hero__facts .fact:first-child dd {
  color: var(--neon);
}

.page-about .about-hero__figure {
  margin: clamp(28px, 5vw, 56px) 0 0;
}

.page-about .figure__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--about-rule);
  background: var(--panel);
}

.page-about .figure__caption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-about .about-shell {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  padding-top: clamp(34px, 6vw, 76px);
}

.page-about .about-rail {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 6px;
}

.page-about .about-rail__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--ink-soft);
}

.page-about .about-rail__list {
  display: flex;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-rail__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  white-space: nowrap;
  padding: 8px 12px;
  border: var(--about-rule);
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 14px;
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background 160ms var(--ease);
}

.page-about .about-rail__link:hover,
.page-about .about-rail__link:focus-visible {
  color: var(--ink);
  border-color: var(--volt);
}

.page-about .about-rail__link:focus-visible {
  outline: 2px solid var(--volt);
  outline-offset: 2px;
}

.page-about .about-rail__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--neon);
}

.page-about .chapter {
  padding: clamp(30px, 5.4vw, 64px) 0;
  border-top: var(--about-rule);
}

.page-about .chapter__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(46px, 9vw, 92px);
  font-weight: 800;
  line-height: 0.8;
  color: transparent;
  -webkit-text-stroke: 1px var(--stack);
}

.page-about .chapter__latin {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--volt);
}

.page-about .chapter__title {
  margin: 10px 0 0;
  font-size: clamp(24px, 4.4vw, 40px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
  max-width: 24ch;
}

.page-about .chapter__sub {
  margin: clamp(30px, 4vw, 46px) 0 18px;
  font-size: clamp(17px, 2.2vw, 21px);
  font-weight: 700;
  color: var(--ink);
}

.page-about .chapter__body {
  margin-top: 20px;
}

.page-about .chapter__body p {
  max-width: 68ch;
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-about .timeline {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.page-about .tl-item {
  position: relative;
  padding: 0 0 10px 30px;
}

.page-about .tl-item::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 16px;
  bottom: -4px;
  width: 1px;
  background: var(--rule);
}

.page-about .tl-item:last-child::before {
  display: none;
}

.page-about .tl-item::after {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 0 2.5px var(--void), 0 0 0 3.5px var(--volt);
}

.page-about .tl-node {
  border-bottom: var(--about-rule);
  padding-bottom: 12px;
}

.page-about .tl-node__sum {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 8px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-about .tl-node__sum:focus-visible {
  outline: 2px solid var(--volt);
  outline-offset: 3px;
}

.page-about .tl-node__era {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--volt);
}

.page-about .tl-node__title {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.page-about .tl-node[open] .tl-node__title {
  color: var(--amber);
}

.page-about .tl-node__text {
  margin: 4px 0 6px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-about .chapter__figure {
  margin: clamp(28px, 4vw, 44px) 0 0;
}

.page-about .team-grid {
  display: grid;
  gap: 16px;
  margin-top: 26px;
}

.page-about .team-col {
  position: relative;
  background: var(--panel);
  border: var(--about-rule);
  padding: 20px 18px 24px;
}

.page-about .team-col::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
}

.page-about .team-col--a::before {
  background: linear-gradient(90deg, var(--neon), rgba(255, 106, 26, 0));
}

.page-about .team-col--b::before {
  background: linear-gradient(90deg, var(--volt), rgba(24, 224, 208, 0));
}

.page-about .team-col--c::before {
  background: linear-gradient(90deg, var(--amber), rgba(255, 194, 71, 0));
}

.page-about .team-col__count {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(34px, 6vw, 52px);
  font-weight: 800;
  line-height: 1;
  color: var(--ink);
}

.page-about .team-col__name {
  margin: 10px 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.page-about .team-col__duty {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink-soft);
}

.page-about .flow-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-about .flow-step {
  border-top: 2px solid var(--stack);
  padding-top: 14px;
}

.page-about .flow-step__i {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--amber);
}

.page-about .flow-step__name {
  margin: 8px 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-about .flow-step__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-about .eco-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-about .eco-check {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-about .eco-chip {
  display: inline-block;
  padding: 7px 13px;
  border: 1px solid var(--rule);
  font-size: 14px;
  color: var(--ink-soft);
  cursor: pointer;
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background 160ms var(--ease);
}

.page-about .eco-chip--lg {
  font-size: 16px;
  color: var(--ink);
}

.page-about .eco-chip:hover {
  border-color: var(--volt);
  color: var(--ink);
}

.page-about .eco-check:checked + .eco-chip {
  border-color: var(--neon);
  background: rgba(255, 106, 26, 0.12);
  color: var(--ink);
}

.page-about .eco-check:focus-visible + .eco-chip {
  outline: 2px solid var(--volt);
  outline-offset: 2px;
}

.page-about .eco-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .eco-item {
  border-left: 2px solid var(--stack);
  padding: 8px 0 8px 14px;
  transition: border-color 200ms var(--ease), background 200ms var(--ease);
}

.page-about .eco-item__domain {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--volt);
}

.page-about .eco-item p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-about .eco-cloud:has(#eco-cal:checked) ~ .eco-list .eco-item[data-eco="cal"],
.page-about .eco-cloud:has(#eco-live:checked) ~ .eco-list .eco-item[data-eco="live"],
.page-about .eco-cloud:has(#eco-lineup:checked) ~ .eco-list .eco-item[data-eco="lineup"],
.page-about .eco-cloud:has(#eco-rule:checked) ~ .eco-list .eco-item[data-eco="rule"],
.page-about .eco-cloud:has(#eco-esport:checked) ~ .eco-list .eco-item[data-eco="esport"] {
  border-left-color: var(--neon);
  background: rgba(255, 106, 26, 0.07);
}

.page-about .eco-stat {
  margin: 26px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
  max-width: 68ch;
}

.page-about .eco-stat__num {
  font-family: var(--font-mono);
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 800;
  color: var(--neon);
  margin-right: 6px;
}

.page-about .eco-note {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-about .eco-note a {
  color: var(--volt);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .honor-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.page-about .honor-item {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: var(--about-rule);
}

.page-about .honor-item__year {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--neon);
}

.page-about .honor-item__text {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-about .about-cta {
  border-top: var(--about-rule);
  padding: clamp(32px, 5.4vw, 62px) 0 72px;
}

.page-about .about-cta__title {
  margin: 0;
  font-size: clamp(22px, 3.6vw, 32px);
  font-weight: 800;
  color: var(--ink);
}

.page-about .about-cta__text {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

@media (min-width: 640px) {
  .page-about .about-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .page-about .flow-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 20px;
  }

  .page-about .eco-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 22px;
  }

  .page-about .team-grid {
    gap: 20px;
  }

  .page-about .honor-item {
    grid-template-columns: 140px minmax(0, 1fr);
    align-items: baseline;
    gap: 24px;
  }
}

@media (min-width: 760px) {
  .page-about .team-grid {
    grid-template-columns: 1.15fr 1fr 0.85fr;
    align-items: start;
  }

  .page-about .team-col--b {
    margin-top: 30px;
  }

  .page-about .team-col--c {
    margin-top: 60px;
  }
}

@media (min-width: 1000px) {
  .page-about .about-shell {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 70px);
    align-items: start;
  }

  .page-about .about-rail {
    position: sticky;
    top: 96px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-about .about-rail__list {
    flex-direction: column;
    gap: 2px;
  }

  .page-about .about-rail__link {
    border: 0;
    border-left: 2px solid var(--rule);
    padding: 9px 0 9px 14px;
    font-size: 15px;
  }

  .page-about .about-rail__link:hover,
  .page-about .about-rail__link:focus-visible {
    border-left-color: var(--neon);
    background: linear-gradient(90deg, rgba(255, 106, 26, 0.1), rgba(255, 106, 26, 0));
    color: var(--ink);
  }

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

  .page-about .chapter__title {
    max-width: 28ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-rail__link,
  .page-about .eco-chip,
  .page-about .eco-item {
    transition: none;
  }
}