.page-about {
  --about-panel: rgba(12, 42, 32, 0.66);
  --about-panel-soft: rgba(12, 42, 32, 0.4);
  display: block;
  color: var(--paper);
}

.page-about .about-crumbs {
  padding: 16px 0 0;
}

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 26px 0 44px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(130% 110% at 108% -10%, rgba(61, 255, 182, 0.13), transparent 60%),
    linear-gradient(180deg, rgba(12, 42, 32, 0.55), transparent 78%);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(22, 74, 58, 0.5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(22, 74, 58, 0.3) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 88%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 88%);
  pointer-events: none;
}

.page-about .about-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 30px;
}

.page-about .about-hero-copy h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 7.4vw, 3.85rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: 0.01em;
  color: var(--paper);
  text-wrap: balance;
}

.page-about .about-lede {
  margin: 18px 0 0;
  max-width: 60ch;
  font-family: var(--font-body);
  font-size: clamp(15px, 1.9vw, 17px);
  line-height: 1.8;
  color: var(--paper);
}

.page-about .about-lede--muted {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-about .about-hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 26px;
}

.page-about .about-stat {
  padding: 13px 15px 14px;
  background: var(--about-panel);
  border: 1px solid var(--line);
  clip-path: var(--chamfer-sm);
}

.page-about .about-stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 3.4vw, 1.85rem);
  font-weight: 700;
  line-height: 1.05;
  color: var(--mint);
  font-variant-numeric: tabular-nums;
}

.page-about .about-stat-label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .about-hero-visual {
  margin: 0;
}

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

.page-about .about-body {
  display: grid;
  gap: clamp(28px, 5vw, 44px);
  padding: clamp(32px, 5vw, 62px) 0 clamp(48px, 7vw, 92px);
}

.page-about .about-index {
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

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

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

.page-about .about-index-list a {
  display: flex;
  flex: 0 0 auto;
  gap: 8px;
  align-items: baseline;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-left: 2px solid transparent;
  color: var(--mist);
  font-size: 13px;
  letter-spacing: 0.03em;
  text-decoration: none;
  white-space: nowrap;
  background: rgba(12, 42, 32, 0.45);
  clip-path: var(--chamfer-sm);
  transition: color 180ms ease, background 180ms ease, border-color 180ms ease;
}

.page-about .about-index-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--mint);
  opacity: 0.8;
}

.page-about .about-index-list a:hover,
.page-about .about-index-list a:focus-visible {
  color: var(--paper);
  border-left-color: var(--mint);
  background: rgba(61, 255, 182, 0.08);
}

.page-about .about-index-list a:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 2px;
}

.page-about .about-content {
  display: grid;
  gap: clamp(30px, 5vw, 56px);
  min-width: 0;
}

.page-about .about-section {
  scroll-margin-top: 92px;
  min-width: 0;
}

.page-about .about-section + .about-section {
  border-top: 1px dashed rgba(22, 74, 58, 0.75);
  padding-top: clamp(26px, 4.5vw, 46px);
}

.page-about .about-section-head {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
}

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

.page-about .about-section h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 4.6vw, 2.25rem);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: 0.01em;
  color: var(--paper);
  text-wrap: balance;
}

.page-about .about-section p {
  margin: 0 0 14px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.82;
  color: var(--paper);
}

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

.page-about .about-section .section-note {
  color: var(--mist);
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
}

.page-about .about-section a {
  color: var(--mint);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-about .about-section a:hover {
  color: var(--fog);
}

.page-about .about-split {
  display: grid;
  gap: 12px;
  margin: 18px 0;
}

.page-about .about-split-card {
  padding: 16px 16px 6px;
  background: var(--about-panel);
  border: 1px solid var(--line);
  border-left: 2px solid rgba(61, 255, 182, 0.55);
  clip-path: var(--chamfer-sm);
}

.page-about .about-split-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--mint);
}

.page-about .about-split-card p {
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}

.page-about .flow-steps {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .flow-step {
  position: relative;
  padding: 14px 15px 16px;
  border: 1px solid var(--line);
  border-top: 2px solid rgba(61, 255, 182, 0.6);
  background: linear-gradient(160deg, rgba(12, 42, 32, 0.9), rgba(7, 26, 20, 0.9));
}

.page-about .flow-num {
  display: inline-block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mint);
}

.page-about .flow-step h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--paper);
}

.page-about .flow-step p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-about .about-flow-media {
  margin: 26px 0 22px;
}

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

.page-about .status-list {
  display: grid;
  gap: 10px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .status-item {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 14px 15px;
  background: var(--about-panel-soft);
  border: 1px solid var(--line);
  clip-path: var(--chamfer-sm);
}

.page-about .status-item p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--mist);
}

.page-about .about-texture {
  margin: 0 0 18px;
  border: 1px solid var(--line);
  overflow: hidden;
  background: var(--ink-900);
}

.page-about .about-texture img {
  display: block;
  width: 100%;
  height: 140px;
  object-fit: cover;
  opacity: 0.55;
}

.page-about .versions-tabs {
  display: grid;
  gap: 16px;
}

.page-about .versions-list {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 2px 2px 8px;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
}

.page-about .version-tab {
  flex: 0 0 auto;
  scroll-snap-align: start;
  display: grid;
  gap: 2px;
  min-height: 48px;
  padding: 9px 14px 10px;
  text-align: left;
  background: rgba(12, 42, 32, 0.8);
  border: 1px solid var(--line);
  border-left: 2px solid transparent;
  color: var(--mist);
  font-family: var(--font-body);
  cursor: pointer;
  clip-path: var(--chamfer-sm);
  transition: color 180ms ease, background 180ms ease, border-color 180ms ease;
}

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

.page-about .version-name {
  font-size: 13px;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.page-about .version-tab[aria-selected="true"] {
  background: var(--mint);
  border-color: var(--mint);
  border-left-color: var(--fog);
  color: var(--ink-900);
}

.page-about .version-tab[aria-selected="true"] .version-year {
  color: rgba(7, 26, 20, 0.72);
}

.page-about .version-tab:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 2px;
}

.page-about .versions-panels {
  min-width: 0;
}

.page-about .version-panel {
  padding: 18px 16px 12px;
  background: var(--about-panel);
  border: 1px solid var(--line);
  border-top: 2px solid rgba(61, 255, 182, 0.55);
  clip-path: var(--chamfer);
}

.page-about .version-panel h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--mint);
}

.page-about .version-panel p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

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

.page-about .version-panel:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 2px;
}

.page-about .about-version-note {
  margin-top: 16px;
  padding: 12px 14px;
  border-left: 2px solid var(--amber);
  background: rgba(255, 179, 71, 0.07);
  font-size: 14px;
  line-height: 1.75;
  color: var(--paper);
}

.page-about .team-bars {
  display: grid;
  gap: 12px;
  margin: 20px 0 18px;
}

.page-about .team-bar {
  padding: 15px 16px 16px;
  background: var(--about-panel);
  border: 1px solid var(--line);
  clip-path: var(--chamfer-sm);
}

.page-about .team-bar-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}

.page-about .team-bar-name {
  margin: 0;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-about .team-bar-num {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--mint);
  font-variant-numeric: tabular-nums;
}

.page-about .team-track {
  height: 9px;
  margin: 11px 0 10px;
  background: rgba(22, 74, 58, 0.7);
  overflow: hidden;
}

.page-about .team-fill {
  display: block;
  height: 100%;
  width: var(--v, 0%);
  background: linear-gradient(90deg, var(--mint), var(--fog));
  transition: width 600ms ease;
}

.page-about .team-fill--amber {
  background: linear-gradient(90deg, var(--amber), #ffd39a);
}

.page-about .team-fill--fog {
  background: linear-gradient(90deg, var(--fog), var(--mist));
}

.page-about .team-note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--mist);
}

.page-about .about-principles {
  display: grid;
  gap: 10px;
}

.page-about .about-principles details {
  background: var(--about-panel-soft);
  border: 1px solid var(--line);
  border-left: 2px solid rgba(61, 255, 182, 0.4);
  clip-path: var(--chamfer-sm);
}

.page-about .about-principles summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 48px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
}

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

.page-about .about-principles summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--mint);
}

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

.page-about .about-principles summary:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: -2px;
}

.page-about .about-principles .accordion-body {
  padding: 0 16px 16px;
}

.page-about .about-principles .accordion-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

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

.page-about .about-region-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.page-about .about-region-panel {
  padding: 16px 16px 14px;
  background: var(--about-panel);
  border: 1px solid var(--line);
  clip-path: var(--chamfer-sm);
}

.page-about .about-facts {
  margin: 0;
  display: grid;
  border-top: 1px solid var(--line);
}

.page-about .about-facts > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-facts dt {
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--mist);
}

.page-about .about-facts dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--paper);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.page-about .about-region-tip {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
}

@media (min-width: 560px) {
  .page-about .about-hero-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
  }
}

@media (min-width: 720px) {
  .page-about .flow-steps {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 8px;
  }

  .page-about .flow-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 50%;
    right: -9px;
    width: 10px;
    height: 1px;
    background: var(--mint);
    opacity: 0.7;
    transform: rotate(-32deg);
    transform-origin: right center;
  }

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

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

  .page-about .about-texture img {
    height: 170px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    padding: 34px 0 58px;
  }

  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    gap: 48px;
    align-items: start;
  }

  .page-about .about-flow-media {
    width: 78%;
    margin-left: auto;
  }

  .page-about .versions-tabs {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 30px;
    align-items: start;
  }

  .page-about .versions-list {
    flex-direction: column;
    overflow: visible;
    padding: 0 0 0 14px;
    border-left: 1px solid var(--line);
    scroll-snap-type: none;
  }

  .page-about .version-tab {
    width: 100%;
    border-left: 2px solid transparent;
  }

  .page-about .version-name {
    white-space: normal;
  }

  .page-about .version-panel {
    padding: 24px 24px 18px;
  }

  .page-about .about-region {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 32px;
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-about .about-body {
    grid-template-columns: 224px minmax(0, 1fr);
    gap: 54px;
  }

  .page-about .about-index {
    position: sticky;
    top: 96px;
    align-self: start;
    border-top: 0;
    border-left: 1px solid var(--line);
    padding: 0 0 0 16px;
  }

  .page-about .about-index-list {
    flex-direction: column;
    overflow: visible;
    gap: 2px;
    padding-bottom: 0;
  }

  .page-about .about-index-list a {
    border: 0;
    border-left: 2px solid transparent;
    background: transparent;
    padding: 8px 10px;
    white-space: normal;
    clip-path: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .team-fill,
  .page-about .version-tab,
  .page-about .about-index-list a {
    transition: none;
  }
}
<<<END>>>

.page-about {
  --v: 1rem;
}