.page-about {
  --ab-rail: 200px;
  background-color: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-about .about-hero {
  position: relative;
  border-bottom: 1px solid var(--grid);
  padding: 28px 12px 40px;
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 44px 44px;
  background-position: -1px -1px;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(120% 90% at 88% -10%, rgba(0, 240, 200, 0.18), transparent 62%),
    linear-gradient(180deg, rgba(6, 26, 21, 0.25), rgba(6, 26, 21, 0.94));
}

.page-about .about-hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--w-max);
  margin: 0 auto;
  min-width: 0;
}

.page-about .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 26px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-about .crumbs a {
  color: var(--teal);
  text-decoration: none;
}

.page-about .crumbs a:hover,
.page-about .crumbs a:focus-visible {
  color: var(--cyan);
}

.page-about .crumbs span[aria-current] {
  color: var(--paper);
}

.page-about .about-hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-about .about-hero .eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--cyan);
}

.page-about h1 {
  margin: 0 0 18px;
  max-width: 820px;
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-about .about-hero .lede {
  margin: 0 0 30px;
  max-width: 660px;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(243, 247, 244, 0.82);
}

.page-about .hero-index {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  border: 1px solid var(--grid-line);
  background: var(--grid-line);
}

.page-about .hero-index > div {
  min-width: 0;
  padding: 14px 12px;
  background: rgba(11, 42, 34, 0.74);
}

.page-about .hero-index dt {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-about .hero-index dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 24px;
  line-height: 1.1;
  color: var(--cyan);
}

.page-about .about-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  max-width: var(--w-max);
  margin: 0 auto;
  padding: 32px 12px 64px;
}

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

.page-about .rail-inner {
  position: relative;
}

.page-about .rail-label {
  display: none;
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--mist);
}

.page-about .rail-list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .rail-list a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border: 1px solid var(--grid);
  border-radius: var(--radius);
  background: var(--glass-fill);
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--t-fast), border-color var(--t-fast), background-color var(--t-fast);
}

.page-about .rail-list a b {
  font-weight: 400;
  color: var(--teal);
}

.page-about .rail-list a:hover,
.page-about .rail-list a:focus-visible {
  color: var(--paper);
  border-color: var(--cyan);
  background: rgba(0, 240, 200, 0.12);
}

.page-about .rail-note {
  display: none;
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--grid);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.8;
  letter-spacing: 0.06em;
  color: var(--mist);
}

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

.page-about .about-section {
  margin: 0 0 44px;
  padding-top: 28px;
  border-top: 1px solid var(--grid-line);
  scroll-margin-top: 88px;
}

.page-about .about-section:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.page-about .sec-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 14px;
}

.page-about .sec-no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-about .sec-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.22;
  color: var(--paper);
}

.page-about .about-section p {
  margin: 0 0 14px;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(243, 247, 244, 0.78);
}

.page-about .layer {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px dashed var(--grid);
}

.page-about .layer:last-child {
  border-bottom: 0;
}

.page-about .layer-no {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 17px;
  letter-spacing: 0.06em;
  color: var(--teal);
}

.page-about .layer-body {
  min-width: 0;
}

.page-about .layer-body h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--paper);
}

.page-about .layer-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
}

.page-about .tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .tag-row li {
  padding: 3px 8px;
  border: 1px solid var(--grid);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--teal);
}

.page-about .mile-list {
  position: relative;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .mile-list::before {
  content: "";
  position: absolute;
  left: 27px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), var(--grid) 72%);
  opacity: 0.75;
}

.page-about .mile {
  position: relative;
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 16px;
  padding-bottom: 26px;
}

.page-about .mile::before {
  content: "";
  position: absolute;
  left: 24px;
  top: 6px;
  width: 7px;
  height: 7px;
  border: 1px solid var(--cyan);
  border-radius: 50%;
  background: var(--ink);
}

.page-about .mile-year {
  padding-top: 1px;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-about .mile-body {
  min-width: 0;
}

.page-about .mile-body h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper);
}

.page-about .mile-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
}

.page-about .ab-media {
  margin: 24px 0 0;
  border: 1px solid var(--grid);
  border-radius: var(--radius);
  background: var(--panel);
  overflow: hidden;
}

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

.page-about .ab-media figcaption {
  padding: 10px 12px;
  border-top: 1px solid var(--grid-line);
  background: rgba(2, 8, 6, 0.45);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-about .team-roles {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .team-roles li {
  min-width: 0;
  padding: 16px 14px;
  border: 1px solid var(--grid);
  background: rgba(11, 42, 34, 0.66);
  transition: border-color var(--t-fast), background-color var(--t-fast);
}

.page-about .team-roles li:hover,
.page-about .team-roles li:focus-within {
  border-color: var(--cyan);
  background: rgba(0, 240, 200, 0.08);
}

.page-about .role-count {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 28px;
  line-height: 1;
  color: var(--cyan);
}

.page-about .role-name {
  display: block;
  margin-bottom: 6px;
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
}

.page-about .team-roles p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
}

.page-about .eco-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin: 18px 0;
}

.page-about .eco-card {
  min-width: 0;
  padding: 20px 16px;
  border: 1px solid var(--grid);
  border-left: 3px solid var(--teal);
  background: linear-gradient(140deg, rgba(11, 42, 34, 0.92), rgba(6, 26, 21, 0.62));
}

.page-about .eco-num {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 34px;
  line-height: 1;
  color: var(--paper);
}

.page-about .eco-num small {
  margin-left: 6px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 400;
  color: var(--mist);
}

.page-about .eco-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
}

.page-about .base-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: 18px 0 0;
  padding: 20px 16px;
  border: 1px solid var(--grid);
  background: rgba(2, 8, 6, 0.45);
}

.page-about .base-item {
  min-width: 0;
}

.page-about .base-item dt {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-about .base-item dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-about .why-list {
  display: grid;
  gap: 10px;
  margin: 0 0 6px;
  padding: 0;
  list-style: none;
}

.page-about .why-list li {
  position: relative;
  padding: 12px 14px 12px 38px;
  border: 1px solid var(--grid-line);
  background: rgba(185, 255, 241, 0.05);
  font-size: 15px;
  line-height: 1.78;
  color: rgba(243, 247, 244, 0.82);
}

.page-about .why-list li::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 18px;
  width: 8px;
  height: 8px;
  border: 1px solid var(--cyan);
  transform: rotate(45deg);
}

.page-about .ab-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-about .ab-tailnote {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 8px;
  padding: 18px 16px;
  border: 1px solid var(--grid);
  border-left: 3px solid var(--cyan);
  background: var(--glass-fill);
}

.page-about .ab-tailnote p {
  margin: 0;
  flex: 1 1 240px;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(243, 247, 244, 0.82);
}

.page-about .ab-tailnote a {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan);
  padding-bottom: 2px;
}

.page-about .ab-tailnote a:hover,
.page-about .ab-tailnote a:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

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

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

  .page-about .base-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 20px;
  }
}

@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 40px 16px 56px;
    background-size: 64px 64px;
  }

  .page-about h1 {
    font-size: 52px;
  }

  .page-about .about-hero .lede {
    font-size: 17px;
  }

  .page-about .sec-title {
    font-size: 34px;
  }

  .page-about .layer {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 22px;
    padding: 22px 0;
  }

  .page-about .layer-body h3 {
    font-size: 21px;
  }

  .page-about .mile {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 24px;
  }

  .page-about .mile-list::before {
    left: 47px;
  }

  .page-about .mile::before {
    left: 44px;
  }

  .page-about .mile-year {
    font-size: 18px;
  }

  .page-about .mile-body h3 {
    font-size: 18px;
  }

  .page-about .eco-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (min-width: 960px) {
  .page-about .about-shell {
    grid-template-columns: var(--ab-rail) minmax(0, 1fr);
    gap: 56px;
    padding: 56px 16px 96px;
  }

  .page-about .rail-inner {
    position: sticky;
    top: 92px;
  }

  .page-about .rail-label {
    display: block;
  }

  .page-about .rail-list {
    flex-direction: column;
    gap: 0;
    padding: 0;
    overflow: visible;
    border-left: 1px solid var(--grid);
  }

  .page-about .rail-list a {
    position: relative;
    padding: 9px 0 9px 18px;
    border: 0;
    background: none;
    border-radius: 0;
    white-space: normal;
  }

  .page-about .rail-list a::before {
    content: "";
    position: absolute;
    left: -4px;
    top: 50%;
    width: 7px;
    height: 7px;
    background: var(--grid);
    transform: translateY(-50%) rotate(45deg);
    transition: background-color var(--t-fast);
  }

  .page-about .rail-list a:hover::before,
  .page-about .rail-list a:focus-visible::before {
    background: var(--cyan);
  }

  .page-about .rail-list a:hover,
  .page-about .rail-list a:focus-visible {
    background: none;
    border-color: transparent;
    color: var(--paper);
  }

  .page-about .rail-note {
    display: block;
  }

  .page-about .about-section {
    margin-bottom: 56px;
    padding-top: 36px;
  }

  .page-about .ab-media {
    margin-top: 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .rail-list a,
  .page-about .team-roles li,
  .page-about .rail-list a::before {
    transition: none;
  }
}