.page-about {
  color: var(--star);
  background: var(--void);
  padding-bottom: 4rem;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  margin: 0;
  font-family: var(--ff-display);
  letter-spacing: -0.01em;
  color: var(--star);
}

.page-about p {
  margin: 0 0 0.9rem;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--mist);
}

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

.page-about .about-crumbs {
  padding-top: 1.25rem;
  padding-bottom: 0.75rem;
}

.page-about .about-hero__frame {
  position: relative;
  padding: 1.75rem 1.15rem 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background:
    radial-gradient(120% 120% at 92% 0%, rgba(138, 107, 255, 0.32) 0%, rgba(138, 107, 255, 0) 58%),
    radial-gradient(90% 90% at 0% 100%, rgba(53, 224, 210, 0.18) 0%, rgba(53, 224, 210, 0) 58%),
    var(--panel);
  overflow: hidden;
}

.page-about .about-hero__frame::before {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(242, 233, 216, 0.16);
  border-radius: calc(var(--radius-l) - 8px);
  pointer-events: none;
}

.page-about .about-hero__frame::after {
  content: "";
  position: absolute;
  top: 10px;
  left: 10px;
  right: 10px;
  height: 5px;
  background-image: repeating-linear-gradient(90deg, var(--cyan-soft) 0 1px, transparent 1px 16px);
  opacity: 0.5;
  pointer-events: none;
}

.page-about .about-hero__frame > * {
  position: relative;
  z-index: 1;
}

.page-about .about-hero .eyebrow {
  display: block;
  margin-bottom: 0.7rem;
  font-family: var(--ff-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--violet-soft);
}

.page-about h1 {
  font-size: clamp(1.85rem, 6.4vw, 3.4rem);
  font-weight: 800;
  line-height: 1.15;
  max-width: 20ch;
}

.page-about .about-hero__lede {
  margin-top: 1rem;
  max-width: 62ch;
  color: var(--star);
  opacity: 0.86;
}

.page-about .about-stats {
  list-style: none;
  margin: 1.6rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem 1rem;
}

.page-about .about-stats li {
  border-top: 1px solid var(--line);
  padding-top: 0.65rem;
}

.page-about .about-stats__num {
  display: block;
  font-family: var(--ff-mono);
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--cyan);
  word-break: break-word;
}

.page-about .about-stats__unit {
  font-size: 0.9rem;
  margin-left: 0.15rem;
  color: var(--cyan-soft);
}

.page-about .about-stats__label {
  display: block;
  margin-top: 0.3rem;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-about .about-body {
  display: grid;
  gap: 2.25rem;
  padding-top: 2.25rem;
}

.page-about .about-index__label {
  margin: 0 0 0.6rem;
  font-family: var(--ff-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--violet-soft);
}

.page-about .about-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 0.4rem;
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
}

.page-about .about-index__list li {
  flex: 0 0 auto;
}

.page-about .about-index__list a {
  display: block;
  padding: 0.4rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--mist);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--t-fast), border-color var(--t-fast), background var(--t-fast);
}

.page-about .about-index__list a:hover,
.page-about .about-index__list a:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
  background: rgba(53, 224, 210, 0.08);
}

.page-about .about-section {
  margin-bottom: 3.25rem;
  scroll-margin-top: 6rem;
}

.page-about .about-section:last-of-type {
  margin-bottom: 2.5rem;
}

.page-about .about-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 0.55rem;
  font-family: var(--ff-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--violet-soft);
}

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

.page-about .about-section h2 {
  font-size: clamp(1.4rem, 4.6vw, 2rem);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 0.85rem;
}

.page-about .about-section h3 {
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.4;
}

.page-about .method-panel {
  margin-top: 1.4rem;
  padding: 1.25rem 1rem;
  border-radius: var(--radius-l);
  background: var(--paper);
  color: var(--ink-paper);
}

.page-about .method-panel p {
  color: #2a3554;
  margin-bottom: 0;
  font-size: 0.92rem;
}

.page-about .method-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.4rem;
}

.page-about .method-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.85rem;
  align-items: start;
  padding: 0.7rem 0.65rem;
  border: 1px solid transparent;
  border-radius: var(--radius-m);
  transition: background var(--t-base), border-color var(--t-base);
}

.page-about .method-step:hover,
.page-about .method-step:focus,
.page-about .method-step:focus-visible {
  outline: none;
  background: rgba(11, 16, 32, 0.07);
  border-color: rgba(11, 16, 32, 0.24);
}

.page-about .method-step:focus-visible {
  box-shadow: 0 0 0 2px var(--cyan);
}

.page-about .method-step__num {
  font-family: var(--ff-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--violet);
  line-height: 1.5;
}

.page-about .method-step h3 {
  color: var(--ink-paper);
  margin-bottom: 0.2rem;
  font-size: 1rem;
}

.page-about .about-split {
  display: grid;
  gap: 1.4rem;
  margin-top: 0.5rem;
}

.page-about .about-figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--panel);
  overflow: hidden;
}

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

.page-about .about-figure figcaption {
  padding: 0.6rem 0.85rem;
  border-top: 1px solid var(--line);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: var(--mist);
}

.page-about .about-figure--wide {
  margin-top: 1.5rem;
}

.page-about .version-rail {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0 0 0 1.2rem;
  position: relative;
  display: grid;
  gap: 1.3rem;
}

.page-about .version-rail::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan) 0%, var(--violet) 55%, rgba(138, 107, 255, 0) 100%);
}

.page-about .version-node {
  position: relative;
}

.page-about .version-node::before {
  content: "";
  position: absolute;
  left: -1.2rem;
  top: 0.4rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--void);
  border: 2px solid var(--violet);
  transition: background var(--t-fast), border-color var(--t-fast), transform var(--t-fast);
}

.page-about .version-node:hover::before {
  background: var(--cyan);
  border-color: var(--cyan);
  transform: scale(1.2);
}

.page-about .version-node__year {
  display: block;
  font-family: var(--ff-mono);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  color: var(--cyan);
  margin-bottom: 0.2rem;
}

.page-about .version-node h3 {
  font-size: 1.05rem;
  margin-bottom: 0.3rem;
}

.page-about .version-node p {
  font-size: 0.94rem;
  margin-bottom: 0;
}

.page-about .eco-grid {
  margin-top: 1.4rem;
  display: grid;
  gap: 0.85rem;
}

.page-about .eco-card {
  padding: 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--panel);
  transition: border-color var(--t-base), background var(--t-base);
}

.page-about .eco-card:hover {
  border-color: var(--cyan);
  background: var(--lift);
}

.page-about .eco-card__num {
  display: block;
  font-family: var(--ff-mono);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--amber);
  margin-bottom: 0.35rem;
}

.page-about .eco-card h3 {
  font-size: 1rem;
  margin-bottom: 0.45rem;
}

.page-about .eco-card p {
  font-size: 0.92rem;
  margin-bottom: 0;
}

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

.page-about .eco-list li {
  position: relative;
  padding-left: 1rem;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-about .eco-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
}

.page-about .eco-list strong {
  color: var(--star);
  font-weight: 700;
}

.page-about .people-grid {
  margin-top: 1.4rem;
  display: grid;
  gap: 0.85rem;
}

.page-about .about-card {
  padding: 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--panel);
}

.page-about .about-card h3 {
  font-size: 1rem;
  margin-bottom: 0.45rem;
  color: var(--cyan-soft);
}

.page-about .about-card p {
  font-size: 0.92rem;
  margin-bottom: 0;
}

.page-about .about-next {
  padding: 1.5rem 1.15rem;
  border: 1px solid var(--violet);
  border-radius: var(--radius-l);
  background:
    radial-gradient(100% 100% at 100% 0%, rgba(138, 107, 255, 0.22) 0%, rgba(138, 107, 255, 0) 62%),
    var(--lift);
}

.page-about .about-next h2 {
  font-size: clamp(1.25rem, 4vw, 1.6rem);
  margin-bottom: 0.6rem;
}

.page-about .about-next p {
  max-width: 58ch;
}

.page-about .about-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.1rem;
}

.page-about .about-next__links .btn {
  text-decoration: none;
}

@media (min-width: 700px) {
  .page-about .about-hero__frame {
    padding: 2.5rem 2.25rem 2rem;
  }

  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.25rem;
  }

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

  .page-about .eco-card--wide {
    grid-column: span 2;
  }

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

  .page-about .method-panel {
    padding: 1.75rem 1.6rem;
  }

  .page-about .about-next {
    padding: 2rem 2rem;
  }
}

@media (min-width: 900px) {
  .page-about .about-body {
    grid-template-columns: 176px minmax(0, 1fr);
    gap: 3rem;
    padding-top: 3rem;
  }

  .page-about .about-index {
    position: sticky;
    top: 6.5rem;
    align-self: start;
  }

  .page-about .about-index__list {
    flex-direction: column;
    overflow: visible;
    gap: 0.15rem;
    padding: 0;
    border-left: 1px solid var(--line);
  }

  .page-about .about-index__list a {
    border: 0;
    border-radius: 0;
    padding: 0.4rem 0 0.4rem 0.8rem;
    position: relative;
    white-space: normal;
  }

  .page-about .about-index__list a::before {
    content: "";
    position: absolute;
    left: -3px;
    top: 50%;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--line);
    transform: translateY(-50%);
    transition: background var(--t-fast);
  }

  .page-about .about-index__list a:hover,
  .page-about .about-index__list a:focus-visible {
    background: transparent;
  }

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

  .page-about .about-split {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: start;
    gap: 2rem;
  }

  .page-about .about-split--flip {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  }

  .page-about .about-split--flip .about-split__text {
    order: 2;
  }

  .page-about .about-section {
    margin-bottom: 4rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about * {
    transition: none !important;
  }
}
<<<END>>>