.page-about {
  background: var(--yd-deep);
  color: var(--yd-paper);
  font-family: var(--yd-font-sans);
  overflow-x: clip;
}

/* ---------- Hero ---------- */
.page-about .pa-hero {
  position: relative;
  padding: calc(var(--yd-header-h) + 36px) 0 clamp(36px, 5vw, 64px);
  background:
    radial-gradient(110% 90% at 88% -10%, rgba(111, 227, 255, 0.16), transparent 62%),
    radial-gradient(90% 80% at -5% 105%, rgba(167, 139, 250, 0.18), transparent 64%),
    var(--yd-deep);
  overflow: hidden;
}

.page-about .pa-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    45deg,
    rgba(30, 51, 88, 0.5) 0 1px,
    transparent 1px 14px
  );
  opacity: 0.35;
  pointer-events: none;
  mask-image: linear-gradient(115deg, transparent 35%, #000 100%);
  -webkit-mask-image: linear-gradient(115deg, transparent 35%, #000 100%);
}

.page-about .pa-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(28px, 4vw, 48px);
}

.page-about .pa-hero__rail {
  display: none;
}

.page-about .pa-hero .yd-crumbs {
  margin-bottom: 18px;
}

.page-about .pa-hero__copy .yd-display {
  margin: 14px 0 20px;
}

.page-about .pa-hero__copy .yd-display em {
  color: var(--yd-cyan);
  font-style: normal;
}

.page-about .pa-hero__copy .yd-lede {
  max-width: 46ch;
  color: var(--yd-mist);
  font-size: 16px;
  line-height: 1.75;
}

.page-about .pa-hero__stats {
  display: grid;
  gap: 14px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .pa-hero__stats li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(30, 51, 88, 0.85);
}

.page-about .pa-hero__stat-t {
  color: var(--yd-mist);
  font-size: 14px;
  line-height: 1.5;
}

.page-about .pa-hero__stats li .yd-num {
  color: var(--yd-cyan);
  flex: 0 0 auto;
}

.page-about .pa-hero__figure {
  aspect-ratio: 14 / 9;
  border-radius: var(--yd-radius-lg);
}

/* ---------- Layout ---------- */
.page-about .pa-layout {
  display: grid;
  gap: clamp(24px, 3vw, 40px);
  padding-bottom: clamp(56px, 8vw, 96px);
}

.page-about .pa-index {
  display: none;
}

.page-about .pa-body {
  display: grid;
  gap: clamp(18px, 2.6vw, 32px);
  min-width: 0;
}

/* ---------- Section shells ---------- */
.page-about .pa-sec {
  position: relative;
  border-radius: var(--yd-radius-lg);
  padding: clamp(26px, 4vw, 52px);
  scroll-margin-top: calc(var(--yd-header-h) + 24px);
}

.page-about .pa-sec--panel {
  background: var(--yd-panel);
}

.page-about .pa-sec--deep {
  background: linear-gradient(170deg, rgba(16, 30, 58, 0.92), rgba(5, 11, 26, 0.6));
}

.page-about .pa-sec--violet {
  background:
    radial-gradient(120% 100% at 100% 0%, rgba(167, 139, 250, 0.22), transparent 60%),
    linear-gradient(165deg, #0C1830, #12122f);
}

.page-about .pa-sec:target {
  box-shadow: 0 0 0 1px rgba(111, 227, 255, 0.5), 0 0 34px -12px rgba(111, 227, 255, 0.6);
}

.page-about .pa-sec__head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-about .pa-sec__head .yd-note {
  max-width: 52ch;
}

.page-about .pa-cols {
  display: grid;
  gap: 16px;
}

.page-about .pa-cols p {
  color: var(--yd-mist);
  font-size: 15.5px;
  line-height: 1.78;
  margin: 0;
}

.page-about .pa-cols p .yd-num {
  color: var(--yd-cyan);
}

.page-about .pa-more {
  margin: 22px 0 0;
  font-size: 14px;
  color: var(--yd-mist);
}

.page-about .pa-more a {
  color: var(--yd-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(111, 227, 255, 0.4);
}

.page-about .pa-more a:hover {
  border-bottom-color: var(--yd-cyan);
}

/* ---------- Three lines ---------- */
.page-about .pa-lines {
  display: grid;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .pa-line {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid rgba(30, 51, 88, 0.9);
}

.page-about .pa-line:last-child {
  border-bottom: 1px solid rgba(30, 51, 88, 0.9);
}

.page-about .pa-line__idx {
  font-size: 22px;
  color: var(--yd-violet);
  line-height: 1.1;
}

.page-about .pa-line__body .yd-h3 {
  margin: 0 0 8px;
}

.page-about .pa-line__body p {
  margin: 0 0 10px;
  color: var(--yd-mist);
  font-size: 15px;
  line-height: 1.75;
}

.page-about .pa-line__body p .yd-num {
  color: var(--yd-paper);
}

.page-about .pa-line__tag {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 0 !important;
}

/* ---------- Team ---------- */
.page-about .pa-team {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  align-items: center;
}

.page-about .pa-team__chart {
  width: min(240px, 62vw);
  margin: 0 auto;
}

.page-about .pa-team__chart svg {
  width: 100%;
  height: auto;
  display: block;
}

.page-about .pa-team__big {
  fill: var(--yd-paper);
  font-family: var(--yd-font-mono);
  font-size: 30px;
  font-weight: 700;
}

.page-about .pa-team__small {
  fill: var(--yd-mist);
  font-family: var(--yd-font-sans);
  font-size: 10px;
  letter-spacing: 0.14em;
}

.page-about .pa-ring {
  transition: stroke-width 0.3s var(--yd-ease), opacity 0.3s var(--yd-ease);
}

.page-about .pa-ring:hover {
  stroke-width: 24;
}

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

.page-about .pa-team__row {
  display: grid;
  grid-template-columns: 12px 1fr;
  gap: 12px;
  padding: 14px 16px;
  border-radius: var(--yd-radius);
  background: rgba(5, 11, 26, 0.45);
  transition: transform 0.3s var(--yd-ease), background 0.3s var(--yd-ease);
}

.page-about .pa-team__row:hover {
  transform: translateY(-3px);
  background: rgba(5, 11, 26, 0.78);
}

.page-about .pa-team__dot {
  width: 12px;
  height: 12px;
  margin-top: 6px;
  border-radius: 50%;
}

.page-about .pa-team__row--data .pa-team__dot { background: var(--yd-cyan); }
.page-about .pa-team__row--edit .pa-team__dot { background: var(--yd-flare); }
.page-about .pa-team__row--tech .pa-team__dot { background: var(--yd-violet); }
.page-about .pa-team__row--ops .pa-team__dot { background: var(--yd-mint); }

.page-about .pa-team__name {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 700;
  color: var(--yd-paper);
}

.page-about .pa-team__name .yd-num {
  color: var(--yd-cyan);
  margin-left: 4px;
}

.page-about .pa-team__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--yd-mist);
}

/* ---------- Versions ---------- */
.page-about .pa-versions {
  overflow: hidden;
}

.page-about .pa-versions__art {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: var(--yd-radius);
  opacity: 0.55;
  margin-bottom: 20px;
  object-fit: cover;
}

.page-about .pa-timeline {
  position: relative;
  border-radius: var(--yd-radius-lg);
  padding: 6px 0;
  background: linear-gradient(150deg, rgba(167, 139, 250, 0.12), rgba(12, 24, 48, 0.55) 55%, rgba(111, 227, 255, 0.08));
  overflow: hidden;
}

.page-about .pa-timeline__track {
  display: grid;
  gap: 12px;
  padding: 20px 14px;
}

.page-about .pa-node {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px 18px;
  border-radius: 26px;
  background: rgba(12, 24, 48, 0.7);
  border: 1px solid rgba(30, 51, 88, 0.8);
  transition: transform 0.32s var(--yd-ease), background 0.32s var(--yd-ease), box-shadow 0.32s var(--yd-ease);
}

.page-about .pa-node:hover {
  transform: translateY(-4px);
  background: rgba(16, 30, 58, 0.96);
  box-shadow: 0 0 0 1px rgba(111, 227, 255, 0.4), 0 16px 34px -18px rgba(111, 227, 255, 0.7);
}

.page-about .pa-node--now {
  background: linear-gradient(120deg, rgba(255, 75, 43, 0.18), rgba(12, 24, 48, 0.85));
  border-color: rgba(255, 75, 43, 0.42);
}

.page-about .pa-node__ver {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 62px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(5, 11, 26, 0.8);
  border: 1px solid rgba(111, 227, 255, 0.45);
  color: var(--yd-cyan);
  font-size: 13px;
  letter-spacing: 0.06em;
}

.page-about .pa-node--now .pa-node__ver {
  color: var(--yd-flare);
  border-color: rgba(255, 75, 43, 0.6);
}

.page-about .pa-node__body .yd-h3 {
  margin: 0 0 6px;
  font-size: 16px;
}

.page-about .pa-node__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--yd-mist);
}

.page-about .pa-node__note .yd-num {
  color: var(--yd-paper);
}

/* ---------- Pipeline ---------- */
.page-about .pa-pipeline {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-about .pa-steps {
  display: grid;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.page-about .pa-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px dashed rgba(30, 51, 88, 0.95);
}

.page-about .pa-step:first-child {
  border-top: 1px dashed rgba(30, 51, 88, 0.95);
}

.page-about .pa-step__n {
  font-size: 20px;
  color: var(--yd-mint);
  line-height: 1.1;
}

.page-about .pa-step .yd-h3 {
  margin: 0 0 6px;
  font-size: 16px;
}

.page-about .pa-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--yd-mist);
}

.page-about .pa-pipeline__figure {
  aspect-ratio: 4 / 3;
  border-radius: var(--yd-radius-lg);
}

/* ---------- Partners ---------- */
.page-about .pa-cols--wide p .yd-num {
  color: var(--yd-cyan);
  font-size: 1.08em;
}

.page-about .pa-numbers {
  display: grid;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-about .pa-numbers__cell {
  padding: 18px 20px;
  border-radius: var(--yd-radius);
  background: rgba(5, 11, 26, 0.55);
  border-left: 3px solid var(--yd-cyan);
}

.page-about .pa-numbers__cell .yd-num--lg {
  color: var(--yd-paper);
}

.page-about .pa-numbers__cell p {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--yd-mist);
}

.page-about .pa-numbers__cell p .yd-num {
  color: var(--yd-cyan);
}

/* ---------- CTA ---------- */
.page-about .pa-cta {
  display: grid;
  gap: 20px;
  padding: clamp(26px, 4vw, 46px);
  border-radius: var(--yd-radius-lg);
  background:
    radial-gradient(100% 130% at 0% 0%, rgba(255, 75, 43, 0.22), transparent 60%),
    var(--yd-panel-2);
}

.page-about .pa-cta__copy p {
  margin: 10px 0 0;
  color: var(--yd-mist);
  font-size: 15px;
  line-height: 1.75;
  max-width: 52ch;
}

.page-about .pa-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Tablet ---------- */
@media (min-width: 640px) {
  .page-about .pa-hero__stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .page-about .pa-hero__stats li {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding-bottom: 0;
    border-bottom: 0;
  }

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

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

  .page-about .pa-cta {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

/* ---------- Desktop ---------- */
@media (min-width: 960px) {
  .page-about .pa-hero__inner {
    grid-template-columns: 7fr 5fr;
    align-items: end;
  }

  .page-about .pa-hero__rail {
    display: block;
    position: absolute;
    right: 10px;
    top: 46%;
    z-index: 2;
    writing-mode: vertical-rl;
    font-family: var(--yd-font-mono);
    font-size: 11px;
    letter-spacing: 0.3em;
    color: rgba(143, 166, 200, 0.55);
  }

  .page-about .pa-layout {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 56px);
    align-items: start;
  }

  .page-about .pa-index {
    display: block;
    position: sticky;
    top: calc(var(--yd-header-h) + 28px);
    padding-top: 8px;
  }

  .page-about .pa-index__title {
    margin: 0 0 14px;
    font-family: var(--yd-font-mono);
    font-size: 11px;
    letter-spacing: 0.28em;
    color: var(--yd-cyan);
    text-transform: uppercase;
  }

  .page-about .pa-index__list {
    display: grid;
    gap: 2px;
    margin: 0;
    padding: 0;
    list-style: none;
    border-left: 1px solid rgba(30, 51, 88, 0.9);
  }

  .page-about .pa-index__list a {
    display: flex;
    align-items: baseline;
    gap: 8px;
    padding: 9px 0 9px 14px;
    margin-left: -1px;
    border-left: 2px solid transparent;
    color: var(--yd-mist);
    font-size: 13.5px;
    text-decoration: none;
    transition: color 0.25s var(--yd-ease), border-color 0.25s var(--yd-ease);
  }

  .page-about .pa-index__list a .yd-num {
    font-size: 11px;
    color: rgba(143, 166, 200, 0.6);
  }

  .page-about .pa-index__list a:hover {
    color: var(--yd-paper);
    border-left-color: var(--yd-cyan);
  }

  .page-about .pa-index__list a:hover .yd-num {
    color: var(--yd-cyan);
  }

  .page-about .pa-index__note {
    margin: 22px 0 0;
    font-size: 12.5px;
    line-height: 1.7;
    color: var(--yd-mist);
  }

  .page-about .pa-index__note a {
    color: var(--yd-cyan);
    text-decoration: none;
    border-bottom: 1px solid rgba(111, 227, 255, 0.45);
  }

  .page-about .pa-cols {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .page-about .pa-team {
    grid-template-columns: 260px minmax(0, 1fr);
  }

  .page-about .pa-team__chart {
    width: 100%;
  }

  .page-about .pa-versions__art {
    position: absolute;
    top: -10px;
    right: -40px;
    width: 520px;
    opacity: 0.32;
    mix-blend-mode: screen;
    margin-bottom: 0;
    pointer-events: none;
  }

  .page-about .pa-sec__head {
    position: relative;
    z-index: 1;
  }

  .page-about .pa-timeline__track {
    transform: rotate(-3deg);
    padding: 32px 26px;
    gap: 16px;
  }

  .page-about .pa-node:nth-child(1) { margin-left: 0; }
  .page-about .pa-node:nth-child(2) { margin-left: 7%; }
  .page-about .pa-node:nth-child(3) { margin-left: 14%; }
  .page-about .pa-node:nth-child(4) { margin-left: 21%; }

  .page-about .pa-pipeline {
    grid-template-columns: minmax(0, 1fr) 340px;
    align-items: start;
  }

  .page-about .pa-pipeline__figure {
    aspect-ratio: 4 / 5;
  }

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

  .page-about .pa-cta {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .pa-ring,
  .page-about .pa-node,
  .page-about .pa-team__row,
  .page-about .pa-index__list a {
    transition: none;
  }

  .page-about .pa-node:hover,
  .page-about .pa-team__row:hover {
    transform: none;
  }

  .page-about .pa-timeline__track {
    transform: none;
  }

  .page-about .pa-node:nth-child(2),
  .page-about .pa-node:nth-child(3),
  .page-about .pa-node:nth-child(4) {
    margin-left: 0;
  }
}
<<<END>>>