.page-about {
  position: relative;
  background:
    radial-gradient(120% 60% at 12% 0%, rgba(139, 92, 246, 0.22), transparent 62%),
    radial-gradient(90% 50% at 92% 8%, rgba(45, 156, 255, 0.14), transparent 66%),
    var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  padding-bottom: clamp(56px, 9vw, 112px);
}

.page-about .mission-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
  padding-top: clamp(18px, 3vw, 34px);
  padding-bottom: clamp(40px, 6vw, 76px);
}

.page-about .mission-hero__title {
  margin: 14px 0 20px;
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 7vw, 4.2rem);
  line-height: 1.12;
  letter-spacing: 0.01em;
  color: var(--paper);
  text-shadow: 0 0 34px rgba(139, 92, 246, 0.45);
}

.page-about .mission-hero__lede {
  margin: 0 0 16px;
  max-width: 44ch;
  font-size: clamp(1rem, 1.4vw, 1.125rem);
  line-height: 1.8;
  color: var(--paper);
}

.page-about .mission-hero__text {
  margin: 0 0 26px;
  max-width: 46ch;
  font-size: 0.97rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-about .mission-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .mission-hero__aside {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .mission-fact {
  display: grid;
  gap: 6px;
  padding: 20px 22px;
  background: var(--ink-2);
}

.page-about .mission-fact__num {
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  line-height: 1;
  color: var(--cyan);
  letter-spacing: -0.02em;
}

.page-about .mission-fact__label {
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .mission-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 5vw, 60px);
  align-items: start;
}

.page-about .mission-rail {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(42, 36, 64, 0.55);
  padding: 18px 20px;
}

.page-about .mission-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--violet-soft);
  text-transform: uppercase;
}

.page-about .mission-rail__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .mission-rail__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 0;
  color: var(--paper);
  font-size: 0.9rem;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-about .mission-rail__link:hover,
.page-about .mission-rail__link:focus-visible {
  color: var(--amber);
  border-bottom-color: var(--amber);
  outline: none;
}

.page-about .mission-rail__num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--cyan);
}

.page-about .mission-flow {
  display: grid;
  gap: clamp(48px, 7vw, 88px);
  min-width: 0;
}

.page-about .mission-section {
  min-width: 0;
  scroll-margin-top: 96px;
}

.page-about .mission-head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
}

.page-about .mission-head__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.9;
  padding: 2px 8px;
  border: 1px solid var(--line-violet-strong);
  border-radius: 3px;
  color: var(--violet-soft);
}

.page-about .mission-head__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 4.2vw, 2.3rem);
  line-height: 1.28;
  color: var(--paper);
}

.page-about .mission-lede {
  margin: 0 0 26px;
  max-width: 62ch;
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .mission-paper {
  background: var(--paper);
  color: var(--ink);
  border-radius: var(--radius);
  padding: clamp(18px, 3vw, 30px);
  display: grid;
  gap: clamp(18px, 3vw, 26px);
}

.page-about .mission-paper__text {
  min-width: 0;
}

.page-about .mission-paper__text p {
  margin: 0 0 14px;
  max-width: 68ch;
  font-size: 0.97rem;
  line-height: 1.8;
  color: #1d1730;
}

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

.page-about .mission-figure {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-3);
}

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

.page-about .mission-figure__cap {
  padding: 10px 12px;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--muted);
  background: var(--ink-2);
  border-top: 1px solid var(--line);
}

.page-about .mission-paper .mission-figure__cap {
  background: rgba(22, 18, 37, 0.94);
}

.page-about .mission-figure--inset {
  margin-top: 24px;
  border: 1px solid var(--line);
}

.page-about .mission-figure--tight {
  margin: 0;
}

.page-about .mission-quote {
  margin-top: 22px;
  padding: 22px 24px;
  border-left: 3px solid var(--amber);
  background: linear-gradient(90deg, rgba(245, 185, 66, 0.12), transparent 72%);
}

.page-about .mission-quote p {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2.4vw, 1.4rem);
  line-height: 1.6;
  color: var(--paper);
}

.page-about .mission-audience {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-about .audience-card {
  position: relative;
  padding: 22px 20px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-2);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.page-about .audience-card::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  background: linear-gradient(90deg, var(--violet), var(--blue), var(--cyan));
  opacity: 0.65;
}

.page-about .audience-card:hover {
  transform: translateY(-3px);
  border-color: var(--line-violet-strong);
}

.page-about .audience-card__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--amber);
  margin-bottom: 10px;
}

.page-about .audience-card__title {
  margin: 0 0 10px;
  font-size: 1.05rem;
  line-height: 1.45;
  color: var(--paper);
}

.page-about .audience-card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--muted);
}

.page-about .mission-ability {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.page-about .mission-ability__visual {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-3);
  padding: 16px;
}

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

.page-about .mission-ability__cap {
  margin: 10px 2px 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-about .mission-ability__list {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.page-about .ability-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-2);
  overflow: hidden;
}

.page-about .ability-item__sum {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 15px 18px;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--paper);
  list-style: none;
}

.page-about .ability-item__sum::-webkit-details-marker {
  display: none;
}

.page-about .ability-item__sum:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: -2px;
}

.page-about .ability-item__dot {
  flex: none;
  width: 10px;
  height: 10px;
  border-radius: 2px;
}

.page-about .ability-item__dot--violet { background: var(--violet); }
.page-about .ability-item__dot--blue { background: var(--blue); }
.page-about .ability-item__dot--amber { background: var(--amber); }
.page-about .ability-item__dot--cyan { background: var(--cyan); }

.page-about .ability-item__body {
  padding: 0 18px 16px;
  border-top: 1px dashed var(--line);
}

.page-about .ability-item__body p {
  margin: 14px 0 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-about .mission-timeline {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin: 0 0 28px;
  padding: 0;
  list-style: none;
  border-left: 2px solid var(--line-violet-strong);
}

.page-about .timeline-step {
  position: relative;
  padding: 0 0 26px 26px;
}

.page-about .timeline-step::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--cyan);
}

.page-about .timeline-step__tag {
  display: inline-block;
  margin-bottom: 8px;
  padding: 2px 9px;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--ink);
  background: var(--amber);
}

.page-about .timeline-step__title {
  margin: 0 0 8px;
  font-size: 1.05rem;
  line-height: 1.45;
  color: var(--paper);
}

.page-about .timeline-step p {
  margin: 0;
  max-width: 58ch;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--muted);
}

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

.page-about .mission-subtitle {
  margin: 0 0 12px;
  font-size: 1.08rem;
  line-height: 1.45;
  color: var(--paper);
}

.page-about .mission-paper .mission-subtitle {
  color: #1d1730;
  font-family: var(--font-display);
  font-size: 1.2rem;
}

.page-about .mission-paper .btn {
  margin-top: 6px;
}

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

.page-about .mission-partner__col {
  padding: 20px 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(42, 36, 64, 0.4);
}

.page-about .mission-partner__col p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.82;
  color: var(--muted);
}

.page-about .mission-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  margin-top: 20px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .mission-strip__cell {
  display: grid;
  gap: 4px;
  padding: 16px 18px;
  background: var(--ink-2);
}

.page-about .mission-strip__num {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  line-height: 1;
  color: var(--amber);
}

.page-about .mission-strip__label {
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--muted);
}

.page-about .mission-section--cta {
  padding-top: 8px;
}

.page-about .mission-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-about .cta-card {
  display: grid;
  gap: 8px;
  padding: 22px;
  border-radius: var(--radius);
  text-decoration: none;
  border: 1px solid var(--line);
  background: var(--ink-2);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.page-about .cta-card:hover,
.page-about .cta-card:focus-visible {
  transform: translateY(-3px);
  box-shadow: var(--shadow-deep);
  outline: none;
}

.page-about .cta-card--blue { border-color: rgba(45, 156, 255, 0.5); }
.page-about .cta-card--amber { border-color: rgba(245, 185, 66, 0.5); }
.page-about .cta-card--violet { border-color: rgba(139, 92, 246, 0.55); }

.page-about .cta-card__kicker {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-about .cta-card--amber .cta-card__kicker { color: var(--amber); }
.page-about .cta-card--violet .cta-card__kicker { color: var(--violet-soft); }

.page-about .cta-card__title {
  font-size: 1.02rem;
  line-height: 1.5;
  color: var(--paper);
}

.page-about .cta-card__more {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--blue);
}

.page-about .mission-cta__note {
  margin: 18px 0 0;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--muted);
}

@media (min-width: 640px) {
  .page-about .mission-audience {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 860px) {
  .page-about .mission-hero {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-about .mission-paper {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    align-items: start;
  }

  .page-about .mission-paper--split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  }

  .page-about .mission-ability {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }

  .page-about .mission-timeline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-left: none;
    border-top: 2px solid var(--line-violet-strong);
    gap: 0;
  }

  .page-about .timeline-step {
    padding: 26px 20px 0 0;
  }

  .page-about .timeline-step::before {
    left: 0;
    top: -8px;
  }
}

@media (min-width: 1080px) {
  .page-about .mission-layout {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: 56px;
  }

  .page-about .mission-rail {
    position: sticky;
    top: 96px;
    padding: 22px 20px;
  }

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

  .page-about .mission-rail__link {
    padding: 8px 0;
  }

  .page-about .mission-hero__title {
    max-width: 15ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .audience-card,
  .page-about .cta-card,
  .page-about .mission-rail__link {
    transition: none;
  }

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