.page-about {
  color: var(--fog);
  overflow-x: hidden;
}

.page-about .about-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(72px, 11vw, 148px) clamp(56px, 8vw, 96px);
}

.page-about .about-hero-media {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-about .about-hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.75) brightness(0.55);
}

.page-about .about-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 8% 0%, rgba(200, 255, 62, 0.16), transparent 58%),
    linear-gradient(180deg, rgba(6, 18, 13, 0.42) 0%, rgba(6, 18, 13, 0.86) 58%, var(--ink) 100%);
}

.page-about .about-hero-body {
  position: relative;
}

.page-about .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 clamp(20px, 3vw, 32px);
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--mute);
}

.page-about .breadcrumb a {
  color: var(--mute);
  text-decoration: none;
  transition: color 200ms var(--ease);
}

.page-about .breadcrumb a:hover,
.page-about .breadcrumb a:focus-visible {
  color: var(--lime);
}

.page-about .breadcrumb li:not(:last-child)::after {
  content: "/";
  margin-left: 8px;
  color: var(--moss);
}

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

.page-about .about-title {
  margin: 0 0 clamp(18px, 3vw, 28px);
  max-width: 17ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.35rem, 7.2vw, 5.2rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.page-about .about-lede {
  margin: 0;
  max-width: 32em;
  font-size: clamp(1rem, 1.1vw, 1.125rem);
  line-height: 1.85;
  color: var(--mute);
}

.page-about .hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .hero-facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 96px;
}

.page-about .fact-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1rem, 1.8vw, 1.35rem);
  color: var(--lime);
  letter-spacing: 0.01em;
}

.page-about .fact-label {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mute);
  text-transform: uppercase;
}

.page-about .about-layout {
  display: grid;
  gap: clamp(20px, 4vw, 40px);
  padding-block: clamp(36px, 6vw, 72px);
}

.page-about .chapter-index {
  align-self: start;
  min-width: 0;
}

.page-about .chapter-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-about .chapter-list::-webkit-scrollbar {
  display: none;
}

.page-about .chapter-list a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  color: var(--mute);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: color 200ms var(--ease), border-color 200ms var(--ease), background-color 200ms var(--ease);
}

.page-about .chapter-list a:hover,
.page-about .chapter-list a:focus-visible {
  color: var(--lime);
  border-color: var(--lime);
  background-color: rgba(200, 255, 62, 0.08);
}

.page-about .idx-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--moss);
}

.page-about .chapter-list a:hover .idx-num,
.page-about .chapter-list a:focus-visible .idx-num {
  color: var(--lime-hi);
}

.page-about:has(#ch-1:target) .chapter-list a[href="#ch-1"],
.page-about:has(#ch-2:target) .chapter-list a[href="#ch-2"],
.page-about:has(#ch-3:target) .chapter-list a[href="#ch-3"],
.page-about:has(#ch-4:target) .chapter-list a[href="#ch-4"],
.page-about:has(#ch-5:target) .chapter-list a[href="#ch-5"],
.page-about:has(#ch-6:target) .chapter-list a[href="#ch-6"] {
  color: var(--lime);
  border-color: var(--lime);
}

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

.page-about .about-chapter {
  padding-block: clamp(36px, 5.5vw, 68px);
  scroll-margin-top: 24px;
}

.page-about .about-chapter + .about-chapter {
  border-top: 1px solid var(--line);
}

.page-about .about-chapter-header {
  display: flex;
  align-items: flex-start;
  gap: clamp(12px, 2vw, 24px);
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-about .chapter-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.5rem, 4vw, 2.75rem);
  line-height: 1;
  color: var(--moss);
  transition: color 240ms var(--ease);
}

.page-about .about-chapter:target .chapter-num {
  color: var(--lime);
}

.page-about .chapter-title {
  margin: 0;
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.4vw, 2.35rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--fog);
  text-wrap: balance;
}

.page-about .about-prose p {
  max-width: 34em;
  margin: 0 0 1em;
  line-height: 1.85;
  color: var(--mute);
}

.page-about .about-prose p:first-child {
  color: var(--fog);
}

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

.page-about .about-prose strong {
  color: var(--lime);
  font-weight: 600;
}

.page-about .about-quote {
  margin: clamp(24px, 4vw, 48px) 0;
  padding: clamp(24px, 4vw, 44px) 0 clamp(24px, 4vw, 44px) clamp(20px, 3vw, 32px);
  border-left: 8px solid var(--lime);
  background: linear-gradient(90deg, rgba(200, 255, 62, 0.07), transparent 70%);
}

.page-about .about-quote p {
  margin: 0;
  max-width: 18ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 4.6vw, 3.6rem);
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--fog);
  text-wrap: balance;
}

.page-about .ver-wrap {
  margin: clamp(20px, 3vw, 32px) 0;
  padding: 4px 0 8px;
  overflow-x: auto;
}

.page-about .ver-svg {
  display: block;
  width: 100%;
  min-width: 620px;
  height: auto;
}

.page-about .ver-axis {
  stroke: var(--line);
  stroke-width: 1.5;
}

.page-about .ver-steps {
  fill: none;
  stroke: var(--moss);
  stroke-width: 3;
  stroke-linejoin: round;
}

.page-about .ver-node {
  outline: none;
}

.page-about .ver-node circle {
  fill: var(--ink-2);
  stroke: var(--lime);
  stroke-width: 2.5;
  transition: fill 220ms var(--ease), stroke 220ms var(--ease);
}

.page-about .ver-node:hover circle,
.page-about .ver-node:focus-visible circle {
  fill: var(--lime);
  stroke: var(--lime-hi);
}

.page-about .ver-label {
  fill: var(--fog);
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.04em;
}

.page-about .ver-tip {
  fill: var(--amber);
  font-size: 13px;
  letter-spacing: 0.02em;
  opacity: 0;
  transition: opacity 240ms var(--ease);
}

.page-about .ver-node:hover .ver-tip,
.page-about .ver-node:focus-visible .ver-tip {
  opacity: 1;
}

.page-about .about-split {
  display: grid;
  gap: clamp(20px, 4vw, 40px);
  align-items: start;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-about .about-shot {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--ink-2);
}

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

.page-about .about-shot figcaption {
  padding: 12px 16px 14px;
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--mute);
}

.page-about .flow-list {
  display: grid;
  gap: 12px;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .flow-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--ink-2);
}

.page-about .flow-num {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--lime);
}

.page-about .flow-item h3 {
  margin: 0 0 4px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--fog);
}

.page-about .flow-item p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--mute);
}

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

.page-about .who-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--ink-2);
  transition: border-color 240ms var(--ease), transform 240ms var(--ease);
}

.page-about .who-card:hover {
  border-color: var(--lime);
  transform: translateY(-2px);
}

.page-about .who-tag {
  align-self: flex-start;
  padding: 4px 10px;
  border: 1px solid rgba(200, 255, 62, 0.35);
  border-radius: var(--r-pill);
  background: rgba(200, 255, 62, 0.1);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--lime);
}

.page-about .who-card h3 {
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.4;
  color: var(--fog);
}

.page-about .who-card p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.78;
  color: var(--mute);
}

.page-about .who-link {
  margin-top: auto;
  padding-top: 6px;
  color: var(--lime);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
}

.page-about .who-link:hover,
.page-about .who-link:focus-visible {
  color: var(--lime-hi);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-about .week-list {
  margin-top: clamp(16px, 3vw, 24px);
  border-top: 1px solid var(--line);
}

.page-about .week-row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .week-day {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-about .week-row p {
  margin: 0;
  max-width: 36em;
  font-size: 0.9375rem;
  line-height: 1.78;
  color: var(--mute);
}

.page-about .week-row--live .week-day {
  color: var(--alert);
}

.page-about .week-row--live .week-day::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--alert);
  animation: aboutPulse 2.4s ease-in-out infinite;
}

@keyframes aboutPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.page-about .about-faq {
  display: grid;
  gap: 10px;
  margin-top: clamp(24px, 4vw, 40px);
}

.page-about .about-faq details {
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--ink-2);
}

.page-about .about-faq details[open] {
  border-color: rgba(200, 255, 62, 0.4);
}

.page-about .about-faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  list-style: none;
  cursor: pointer;
  font-size: 0.9688rem;
  font-weight: 600;
  color: var(--fog);
}

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

.page-about .about-faq summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.125rem;
  color: var(--lime);
}

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

.page-about .about-faq p {
  margin: 10px 0 0;
  font-size: 0.9375rem;
  line-height: 1.82;
  color: var(--mute);
}

.page-about .about-next {
  margin-top: clamp(40px, 7vw, 80px);
  padding: clamp(24px, 4vw, 48px);
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  background:
    radial-gradient(120% 130% at 6% 0%, rgba(200, 255, 62, 0.16), transparent 62%),
    radial-gradient(90% 120% at 100% 100%, rgba(245, 169, 63, 0.12), transparent 60%),
    var(--ink-2);
}

.page-about .about-next .chapter-title {
  max-width: 20ch;
}

.page-about .about-next .about-prose {
  margin: clamp(14px, 2vw, 20px) 0 0;
}

.page-about .about-next .about-prose p {
  max-width: 36em;
}

.page-about .next-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

@media (min-width: 720px) {
  .page-about .week-row {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }

  .page-about .who-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 820px) {
  .page-about .about-split {
    grid-template-columns: 7fr 5fr;
  }

  .page-about .about-shot--offset {
    margin-top: clamp(20px, 3vw, 44px);
  }
}

@media (min-width: 960px) {
  .page-about .about-layout {
    grid-template-columns: 196px minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-about .chapter-index {
    position: sticky;
    top: 32px;
  }

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

  .page-about .chapter-list a {
    padding: 10px 0 10px 14px;
    border: 0;
    border-left: 2px solid var(--line);
    border-radius: 0;
    white-space: normal;
  }

  .page-about .chapter-list a:hover,
  .page-about .chapter-list a:focus-visible {
    background-color: transparent;
  }

  .page-about:has(#ch-1:target) .chapter-list a[href="#ch-1"],
  .page-about:has(#ch-2:target) .chapter-list a[href="#ch-2"],
  .page-about:has(#ch-3:target) .chapter-list a[href="#ch-3"],
  .page-about:has(#ch-4:target) .chapter-list a[href="#ch-4"],
  .page-about:has(#ch-5:target) .chapter-list a[href="#ch-5"],
  .page-about:has(#ch-6:target) .chapter-list a[href="#ch-6"] {
    border-left-color: var(--lime);
  }

  .page-about .about-chapter {
    padding-block: clamp(48px, 6vw, 84px);
    scroll-margin-top: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .who-card,
  .page-about .ver-node circle,
  .page-about .ver-tip,
  .page-about .chapter-num,
  .page-about .chapter-list a {
    transition: none;
  }

  .page-about .who-card:hover {
    transform: none;
  }

  .page-about .week-row--live .week-day::before {
    animation: none;
  }
}
<<<END>>>