.page-about {
  --about-measure: 42ch;
  --about-soft: var(--zo-mist-400);
  --about-rule: 1px solid var(--zo-ink-500);
  background: var(--zo-ink-900);
  color: var(--zo-ice-100);
  font-family: var(--zo-font-body);
  overflow-x: hidden;
  padding-bottom: 3rem;
}

.page-about .about-hero {
  position: relative;
  isolation: isolate;
  padding: 1.1rem 0 2.5rem;
}

.page-about .about-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.page-about .about-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 62%;
  opacity: 0.36;
}

.page-about .about-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(130% 90% at 12% 0%, rgba(8, 22, 37, 0.32), rgba(8, 22, 37, 0.94) 72%),
    linear-gradient(180deg, rgba(8, 22, 37, 0.1) 0%, var(--zo-ink-900) 92%);
}

.page-about .about-hero__inner {
  max-width: var(--zo-max);
  margin-inline: auto;
  padding-inline: var(--zo-gutter);
}

.page-about .zo-breadcrumb a {
  color: var(--about-soft);
  text-decoration: none;
}

.page-about .zo-breadcrumb [aria-current="page"] {
  color: var(--zo-ice-100);
}

.page-about .about-hero h1 {
  margin: 0.85rem 0 1rem;
  max-width: 22ch;
  font-family: var(--zo-font-narrow);
  font-weight: 300;
  font-size: clamp(1.95rem, 7.4vw, 3.7rem);
  line-height: 1.14;
  letter-spacing: 0.01em;
  color: var(--zo-ice-000);
}

.page-about .about-hero h1 em {
  font-style: normal;
  font-weight: 700;
  color: var(--zo-ice-000);
  box-shadow: inset 0 -0.16em 0 rgba(206, 31, 46, 0.6);
}

.page-about .about-hero__lead {
  max-width: var(--about-measure);
  margin: 0 0 1.6rem;
  font-size: 0.96rem;
  line-height: 1.85;
  color: var(--about-soft);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-bottom: 1.9rem;
}

.page-about .about-hero__facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 0;
  padding: 1rem 0 0;
  list-style: none;
  border-top: var(--about-rule);
}

.page-about .about-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
}

.page-about .about-hero__facts .zo-num {
  font-family: var(--zo-font-num);
  font-size: clamp(1.5rem, 6vw, 2.4rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--zo-red-400);
}

.page-about .about-hero__facts li span:last-child {
  font-size: 0.78rem;
  line-height: 1.4;
  color: var(--about-soft);
}

.page-about .about-layout {
  display: grid;
  gap: 1.5rem;
  max-width: var(--zo-max);
  margin-inline: auto;
  padding-inline: var(--zo-gutter);
}

.page-about .about-toc {
  display: none;
}

.page-about .about-toc__label {
  margin: 0 0 0.7rem;
  font-family: var(--zo-font-num);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--about-soft);
}

.page-about .about-toc ol {
  display: grid;
  gap: 0.1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-toc a {
  display: flex;
  gap: 0.55rem;
  align-items: baseline;
  padding: 0.45rem 0 0.45rem 0.8rem;
  border-left: 1px solid var(--zo-ink-500);
  font-size: 0.8rem;
  line-height: 1.35;
  color: var(--about-soft);
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, padding-left 0.2s ease;
}

.page-about .about-toc a:hover,
.page-about .about-toc a:focus-visible {
  padding-left: 1.05rem;
  color: var(--zo-ice-100);
  border-left-color: var(--zo-red-600);
}

.page-about .about-toc .zo-num {
  font-family: var(--zo-font-num);
  color: var(--zo-red-400);
  letter-spacing: 0.06em;
}

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

.page-about .about-chapter {
  padding: 2.3rem 0;
  border-top: var(--about-rule);
  scroll-margin-top: 1rem;
}

.page-about .about-chapter__index {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.8rem;
  font-family: var(--zo-font-num);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--about-soft);
}

.page-about .about-chapter__no {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 700;
  color: var(--zo-ice-000);
}

.page-about .about-chapter__no::before {
  content: "";
  display: block;
  width: 18px;
  height: 1px;
  background: var(--zo-red-600);
}

.page-about .about-chapter h2 {
  margin: 0 0 1rem;
  font-family: var(--zo-font-narrow);
  font-weight: 600;
  font-size: clamp(1.5rem, 5.6vw, 2.4rem);
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--zo-ice-000);
}

.page-about .about-chapter__body {
  max-width: var(--about-measure);
}

.page-about .about-chapter__body p {
  margin: 0 0 1rem;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--zo-ice-100);
}

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

.page-about .about-version {
  display: flex;
  gap: 0.75rem;
  margin: 1.7rem 0 0;
  padding: 0 0 0.9rem;
  list-style: none;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-version::-webkit-scrollbar {
  height: 4px;
}

.page-about .about-version::-webkit-scrollbar-thumb {
  background: var(--zo-ink-500);
  border-radius: 999px;
}

.page-about .about-version__item {
  position: relative;
  flex: 0 0 76%;
  max-width: 250px;
  padding: 1.1rem 1rem 1.15rem;
  scroll-snap-align: start;
  border: 1px solid var(--zo-ink-500);
  border-radius: var(--zo-radius-sm) var(--zo-radius-sm) var(--zo-radius-md) var(--zo-radius-sm);
  background: linear-gradient(160deg, var(--zo-ink-700), var(--zo-ink-900));
}

.page-about .about-version__item::before {
  content: "";
  position: absolute;
  left: 1rem;
  top: 0;
  width: 26px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: var(--zo-red-600);
}

.page-about .about-version__item--current {
  border-color: var(--zo-aurora-400);
  background: linear-gradient(160deg, rgba(47, 227, 192, 0.14), var(--zo-ink-900));
}

.page-about .about-version__year {
  margin: 0.45rem 0 0.25rem;
  font-family: var(--zo-font-num);
  font-size: 2.5rem;
  font-weight: 300;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--about-soft);
}

.page-about .about-version__item--current .about-version__year {
  color: var(--zo-aurora-400);
}

.page-about .about-version__title {
  margin: 0 0 0.4rem;
  font-family: var(--zo-font-body);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--zo-ice-000);
}

.page-about .about-version__desc {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--about-soft);
}

.page-about .about-chapter--split {
  display: grid;
  gap: 1.6rem;
}

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

.page-about .about-checks {
  margin: 1.3rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.55rem;
  max-width: var(--about-measure);
}

.page-about .about-checks li {
  position: relative;
  padding-left: 1.4rem;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--zo-ice-100);
}

.page-about .about-checks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--zo-aurora-400);
}

.page-about .about-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.9rem;
  padding: 1.6rem 1.2rem;
  border: 1px solid var(--zo-ink-500);
  border-radius: var(--zo-radius-md);
  background:
    radial-gradient(120% 120% at 50% 0%, rgba(47, 227, 192, 0.12), rgba(47, 227, 192, 0) 70%),
    var(--zo-ink-700);
}

.page-about .about-badge svg {
  width: 100%;
  max-width: 170px;
  height: auto;
  color: var(--zo-aurora-400);
}

.page-about .about-badge__cap {
  margin: 0;
  font-family: var(--zo-font-num);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  color: var(--about-soft);
  text-align: center;
}

.page-about .about-flowline {
  display: grid;
  gap: 0.6rem;
  margin: 1.7rem 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-flowline li {
  position: relative;
  display: grid;
  gap: 0.15rem;
  padding: 0.95rem 1rem;
  border: 1px solid var(--zo-ink-500);
  border-radius: var(--zo-radius-sm);
  background: var(--zo-ink-700);
}

.page-about .about-flowline li:nth-child(2) {
  border-color: rgba(159, 176, 194, 0.55);
}

.page-about .about-flowline li:nth-child(3) {
  border-color: rgba(47, 227, 192, 0.4);
}

.page-about .about-flowline li:nth-child(4) {
  border-color: var(--zo-aurora-400);
  background: linear-gradient(140deg, rgba(47, 227, 192, 0.16), var(--zo-ink-700));
}

.page-about .about-flowline__step {
  font-family: var(--zo-font-num);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--zo-aurora-400);
}

.page-about .about-flowline h3 {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--zo-ice-000);
}

.page-about .about-flowline p {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--about-soft);
}

.page-about .about-figure {
  margin: 1.7rem 0 0;
  padding: 0;
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--zo-ink-500);
  border-radius: var(--zo-radius-md);
}

.page-about .about-figure figcaption {
  margin-top: 0.65rem;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--about-soft);
}

.page-about .about-team {
  display: grid;
  gap: 0.7rem;
  margin: 1.7rem 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-team li {
  padding: 1.15rem;
  border: 1px solid var(--zo-ink-500);
  border-radius: var(--zo-radius-md);
  background: var(--zo-ink-700);
}

.page-about .about-team__count {
  margin: 0;
  font-family: var(--zo-font-num);
  font-size: 2.3rem;
  font-weight: 700;
  line-height: 1;
  color: var(--zo-ice-000);
}

.page-about .about-team h3 {
  margin: 0.55rem 0 0.35rem;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--zo-ice-000);
}

.page-about .about-team p {
  margin: 0;
  font-size: 0.83rem;
  line-height: 1.72;
  color: var(--about-soft);
}

.page-about .about-metrics {
  display: grid;
  gap: 1px;
  margin: 1.7rem 0 0;
  padding: 0;
  list-style: none;
  overflow: hidden;
  border: 1px solid var(--zo-ink-500);
  border-radius: var(--zo-radius-md);
  background: var(--zo-ink-500);
}

.page-about .about-metrics li {
  padding: 1.15rem;
  background: var(--zo-ink-700);
}

.page-about .about-metrics__val {
  margin: 0 0 0.4rem;
  font-family: var(--zo-font-num);
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--zo-aurora-400);
}

.page-about .about-metrics__val span {
  margin-left: 0.25rem;
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--about-soft);
}

.page-about .about-metrics p:last-child {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.65;
  color: var(--about-soft);
}

.page-about .about-standards {
  display: grid;
  margin: 1.7rem 0 0;
  border-top: var(--about-rule);
}

.page-about .about-standards > div {
  display: grid;
  gap: 0.3rem;
  padding: 0.9rem 0;
  border-bottom: var(--about-rule);
}

.page-about .about-standards dt {
  font-family: var(--zo-font-num);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  color: var(--zo-red-400);
}

.page-about .about-standards dd {
  margin: 0;
  font-size: 0.87rem;
  line-height: 1.75;
  color: var(--zo-ice-100);
}

.page-about .about-next {
  display: grid;
  gap: 0.7rem;
  margin-top: 1.7rem;
}

.page-about .about-next__card {
  display: grid;
  gap: 0.45rem;
  padding: 1.35rem 1.2rem;
  border: 1px solid var(--zo-ink-500);
  border-radius: var(--zo-radius-md);
  background: linear-gradient(150deg, var(--zo-ink-700), var(--zo-ink-900));
  color: var(--zo-ice-100);
  text-decoration: none;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.page-about .about-next__card:hover,
.page-about .about-next__card:focus-visible {
  border-color: var(--zo-red-600);
  transform: translateY(-3px);
}

.page-about .about-next__kicker {
  font-family: var(--zo-font-num);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--zo-red-400);
}

.page-about .about-next__card strong {
  font-family: var(--zo-font-narrow);
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--zo-ice-000);
}

.page-about .about-next__go {
  font-size: 0.8rem;
  color: var(--about-soft);
}

.page-about .about-next__foot {
  margin: 1.2rem 0 0;
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--about-soft);
}

.page-about .about-next__foot a {
  color: var(--zo-aurora-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 227, 192, 0.4);
}

.page-about .about-next__foot a:hover,
.page-about .about-next__foot a:focus-visible {
  border-bottom-color: var(--zo-aurora-400);
}

@media (min-width: 720px) {
  .page-about .about-team {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.8rem;
  }

  .page-about .about-flowline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.8rem;
  }

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

  .page-about .about-standards > div {
    grid-template-columns: 5.5rem minmax(0, 1fr);
    align-items: baseline;
    gap: 1.2rem;
  }

  .page-about .about-next {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.8rem;
  }

  .page-about .about-version__item {
    flex-basis: 42%;
  }
}

@media (min-width: 900px) {
  .page-about .about-chapter--split {
    grid-template-columns: minmax(0, 1fr) 250px;
    align-items: center;
    gap: 2.4rem;
  }

  .page-about .about-hero {
    padding: 1.6rem 0 3.2rem;
  }

  .page-about .about-hero__lead {
    font-size: 1rem;
  }

  .page-about .about-chapter {
    padding: 3rem 0;
  }
}

@media (min-width: 1080px) {
  .page-about .about-layout {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 2.6rem;
  }

  .page-about .about-toc {
    display: block;
    position: sticky;
    top: 1.5rem;
    align-self: start;
    padding-top: 3rem;
  }

  .page-about .about-flowline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.5rem;
  }

  .page-about .about-flowline li:not(:first-child)::before {
    content: "→";
    position: absolute;
    left: -1.05rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.8rem;
    color: var(--zo-ink-500);
  }

  .page-about .about-version__item {
    flex-basis: 23%;
  }

  .page-about .about-version__year {
    font-size: 3.6rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-toc a,
  .page-about .about-next__card {
    transition: none;
  }

  .page-about .about-next__card:hover,
  .page-about .about-next__card:focus-visible {
    transform: none;
  }
}
<<<END>>>