.page-about {
  --about-soft: #C9D6DC;
  --about-panel: rgba(18, 50, 71, 0.72);
  --about-pad: clamp(20px, 4vw, 40px);
  background: var(--ink);
  color: var(--rice);
}

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(20px, 3vw, 34px) clamp(48px, 7vw, 96px);
}

.page-about .about-hero__collage {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.page-about .about-hero__collage span {
  position: absolute;
  display: block;
}

.page-about .about-hero__collage span:nth-child(1) {
  width: min(38vw, 560px);
  height: min(38vw, 560px);
  right: -8%;
  top: -20%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(79, 156, 134, 0.22), transparent 70%);
}

.page-about .about-hero__collage span:nth-child(2) {
  width: min(24vw, 320px);
  height: min(24vw, 320px);
  left: -6%;
  bottom: -18%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(215, 154, 70, 0.14), transparent 70%);
}

.page-about .about-hero__collage span:nth-child(3) {
  width: 180px;
  height: 180px;
  right: 26%;
  bottom: 6%;
  border: 1px solid var(--hair);
  border-radius: var(--radius-lg);
  opacity: 0.55;
  transform: rotate(12deg);
}

.page-about .breadcrumb {
  position: relative;
  z-index: 1;
  margin-bottom: clamp(24px, 4vw, 48px);
}

.page-about .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--mist);
  font-size: 13px;
  line-height: 1.5;
}

.page-about .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--mist);
}

.page-about .breadcrumb__link {
  color: var(--celadon-soft);
  text-decoration: none;
}

.page-about .breadcrumb__link:hover {
  color: var(--amber);
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(28px, 5vw, 56px);
}

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

.page-about .about-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(42px, 8.5vw, 88px);
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: -0.02em;
}

.page-about .about-title span {
  display: block;
  color: var(--amber);
}

.page-about .about-lede {
  max-width: 680px;
  margin: 24px 0 0;
  color: var(--about-soft);
  font-size: clamp(16px, 1.3vw, 18px);
  line-height: 1.75;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-about .hero-tiles {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  min-width: 0;
}

.page-about .hero-tile {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 120px;
  padding: 18px;
  border-radius: var(--radius-md);
  overflow: hidden;
  font-size: 14px;
  line-height: 1.4;
}

.page-about .hero-tile--amber {
  grid-column: span 2;
  min-height: 148px;
  background: var(--amber);
  color: var(--ink);
}

.page-about .hero-tile--line {
  border: 1px solid var(--hair);
  background: var(--ink-2);
  color: var(--rice);
}

.page-about .hero-tile--celadon {
  background: var(--celadon);
  color: var(--ink);
}

.page-about .hero-tile__num {
  font-family: var(--font-display);
  font-size: clamp(38px, 5vw, 64px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
}

.page-about .hero-tile__label {
  margin-top: 14px;
  font-size: 13px;
  opacity: 0.82;
}

.page-about .about-layout {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  padding-block: clamp(48px, 7vw, 96px);
}

.page-about .side-index {
  min-width: 0;
  padding-top: 18px;
  border-top: 1px solid var(--hair);
}

.page-about .side-index__title {
  margin: 0 0 12px;
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.page-about .side-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .side-index__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--about-soft);
  text-decoration: none;
  font-size: 13px;
  line-height: 1.4;
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .side-index__link:hover,
.page-about .side-index__link:focus-visible {
  border-color: var(--celadon);
  color: var(--rice);
}

.page-about .side-index__link[aria-current="true"] {
  border-color: var(--celadon);
  background: var(--celadon);
  color: var(--ink);
}

.page-about .side-index__num {
  font-family: var(--font-mono);
  font-size: 11px;
  opacity: 0.72;
}

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

.page-about .about-chapter {
  padding: clamp(28px, 4vw, 44px) 0;
  border-top: 1px solid var(--hair);
}

.page-about .about-body > .about-chapter:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-about .chapter-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px 16px;
  align-items: start;
  margin-bottom: 24px;
}

.page-about .chapter-no {
  padding-top: 8px;
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1;
}

.page-about .about-chapter h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.015em;
}

.page-about .about-chapter h3 {
  margin: 0 0 8px;
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.3;
}

.page-about .prose p,
.page-about .chapter-lede,
.page-about .about-chapter > p {
  margin: 0;
  color: var(--about-soft);
  font-size: 16px;
  line-height: 1.75;
}

.page-about .prose p + p {
  margin-top: 14px;
}

.page-about .prose {
  max-width: 720px;
}

.page-about .about-chapter a {
  color: var(--celadon-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-chapter a:hover {
  color: var(--amber);
}

.page-about .start-grid {
  display: grid;
  gap: 24px;
}

.page-about .about-figure {
  margin: 0;
  min-width: 0;
}

.page-about .media-frame {
  overflow: hidden;
  border: 1px solid var(--hair);
  border-radius: var(--radius-md);
  background: var(--ink-2);
}

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

.page-about .figure-start .media-frame {
  aspect-ratio: 3 / 2;
}

.page-about .figure-version .media-frame {
  aspect-ratio: 2 / 1;
}

.page-about .figure-team .media-frame {
  aspect-ratio: 4 / 3;
}

.page-about .media-frame__caption {
  margin-top: 10px;
  color: var(--mist);
  font-size: 13px;
  line-height: 1.6;
}

.page-about .version-layout {
  display: grid;
  gap: 28px;
  margin-top: 24px;
}

.page-about .timeline {
  position: relative;
  padding-left: 28px;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--hair);
}

.page-about .tl-item {
  position: relative;
  padding: 0 0 26px 8px;
}

.page-about .tl-item::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--celadon);
  box-shadow: 0 0 0 4px rgba(79, 156, 134, 0.14);
}

.page-about .tl-mark {
  margin: 0 0 4px;
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.04em;
}

.page-about .tl-item h3 {
  margin: 0 0 6px;
  font-size: 20px;
}

.page-about .tl-item p {
  margin: 0;
  color: var(--about-soft);
  font-size: 15px;
  line-height: 1.7;
}

.page-about .version-note {
  margin-top: 20px;
  padding: 14px 16px;
  border: 1px solid var(--hair);
  border-left: 3px solid var(--celadon);
  border-radius: var(--radius-sm);
  background: var(--ink-2);
}

.page-about .version-note summary {
  cursor: pointer;
  color: var(--celadon-soft);
  font-weight: 500;
}

.page-about .version-note summary:hover {
  color: var(--amber);
}

.page-about .version-note p {
  margin: 12px 0 0;
  color: var(--about-soft);
  font-size: 15px;
  line-height: 1.7;
}

.page-about .team-figure {
  margin-bottom: 24px;
}

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

.page-about .team-card {
  display: flex;
  flex-direction: column;
  min-height: 260px;
  padding: 22px;
  border-radius: var(--radius-md);
}

.page-about .team-card--a {
  border: 1px solid var(--hair);
  background: var(--ink-2);
  color: var(--rice);
}

.page-about .team-card--b {
  background: var(--moss);
  color: var(--rice);
}

.page-about .team-card--c {
  background: var(--amber);
  color: var(--ink);
}

.page-about .team-card__num {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(48px, 6vw, 72px);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.02em;
}

.page-about .team-card h3 {
  margin: 0 0 8px;
  font-size: 21px;
}

.page-about .team-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
}

.page-about .team-card ul {
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  font-size: 14px;
  line-height: 1.6;
}

.page-about .team-card li {
  position: relative;
  padding-left: 14px;
}

.page-about .team-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.5;
}

.page-about .reach-layout {
  display: grid;
  gap: 28px;
  margin-top: 24px;
}

.page-about .reach-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin: 24px 0;
  padding: 20px 0;
  border-block: 1px solid var(--hair);
}

.page-about .reach-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-about .reach-stat__num {
  color: var(--amber);
  font-family: var(--font-display);
  font-size: clamp(38px, 5vw, 58px);
  font-weight: 700;
  line-height: 1;
}

.page-about .reach-stat span:last-child {
  color: var(--mist);
  font-size: 13px;
}

.page-about .reach-copy p + p {
  margin-top: 14px;
}

.page-about .node-panel {
  padding: 18px;
  border: 1px solid var(--hair);
  border-radius: var(--radius-md);
  background: var(--ink-2);
}

.page-about .node-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 6px;
}

.page-about .node {
  aspect-ratio: 1;
  border: 1px solid rgba(138, 154, 166, 0.12);
  border-radius: 3px;
  background: var(--ink-3);
}

.page-about .node--sichuan {
  border-color: var(--amber);
  background: var(--amber);
  box-shadow: 0 0 0 3px rgba(215, 154, 70, 0.18);
}

.page-about .node-panel__caption {
  margin: 14px 0 0;
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.5;
}

.page-about .cadence {
  margin: 24px 0;
  border-top: 1px solid var(--hair);
}

.page-about .cadence__row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--hair);
}

.page-about .cadence__no {
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
}

.page-about .cadence__when {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.1;
}

.page-about .cadence__what {
  margin: 0;
  color: var(--about-soft);
  font-size: 15px;
  line-height: 1.7;
}

.page-about .about-closing {
  position: relative;
  margin-top: clamp(24px, 4vw, 40px);
  padding: var(--about-pad);
  overflow: hidden;
  border: 1px solid var(--hair);
  border-radius: var(--radius-lg);
  background: var(--ink-2);
}

.page-about .about-closing::before {
  content: "";
  position: absolute;
  width: 280px;
  height: 280px;
  right: -80px;
  top: -100px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(79, 156, 134, 0.18), transparent 70%);
}

.page-about .closing-main {
  position: relative;
  max-width: 760px;
}

.page-about .about-closing h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.015em;
}

.page-about .about-closing p {
  margin: 0;
  color: var(--about-soft);
  font-size: 16px;
  line-height: 1.75;
}

.page-about .about-closing p + p {
  margin-top: 14px;
}

.page-about .archive-strip {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  margin-top: 28px;
  overflow: hidden;
  border: 1px solid var(--hair);
  border-radius: var(--radius-sm);
}

.page-about .archive-strip a {
  display: flex;
  flex: 1 1 150px;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  border-right: 1px solid var(--hair);
  background: rgba(10, 28, 43, 0.3);
  color: var(--rice);
  text-decoration: none;
  font-size: 13px;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-about .archive-strip a:last-child {
  border-right: 0;
}

.page-about .archive-strip a:hover,
.page-about .archive-strip a:focus-visible {
  background: var(--ink-3);
  color: var(--amber);
}

.page-about .archive-strip__no {
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 11px;
}

@media (min-width: 600px) {
  .page-about .node-grid {
    grid-template-columns: repeat(8, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-about .start-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: start;
  }

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

  .page-about .cadence__row {
    grid-template-columns: 56px 150px minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
    align-items: end;
  }

  .page-about .about-layout {
    grid-template-columns: minmax(180px, 220px) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 72px);
    align-items: start;
  }

  .page-about .side-index {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    padding: 6px 0 0 20px;
    border-top: 0;
    border-left: 1px solid var(--hair);
  }

  .page-about .side-index__list {
    display: grid;
    gap: 4px;
  }

  .page-about .side-index__link {
    position: relative;
    padding: 8px 0 8px 12px;
    border: 0;
    border-radius: 0;
    background: transparent;
  }

  .page-about .side-index__link::before {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: transparent;
  }

  .page-about .side-index__link[aria-current="true"] {
    background: transparent;
    color: var(--celadon-soft);
  }

  .page-about .side-index__link[aria-current="true"]::before {
    background: var(--celadon);
  }

  .page-about .version-layout {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }

  .page-about .team-grid {
    grid-template-columns: 1.1fr 0.85fr 1.25fr;
  }

  .page-about .team-card--b {
    margin-top: 36px;
  }

  .page-about .team-card--c {
    margin-top: 14px;
  }

  .page-about .reach-layout {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: center;
  }

  .page-about .node-grid {
    grid-template-columns: repeat(8, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    scroll-behavior: auto;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media print {
  .page-about {
    background: #fff;
    color: #111;
  }

  .page-about .about-hero,
  .page-about .breadcrumb,
  .page-about .side-index,
  .page-about .about-figure,
  .page-about .hero-tiles {
    display: none !important;
  }

  .page-about .about-layout {
    display: block;
    padding: 0;
  }

  .page-about .about-chapter {
    padding: 12px 0;
    border-top: 1px solid #bbb;
  }

  .page-about .about-chapter h2,
  .page-about .about-chapter h3,
  .page-about .about-closing h2 {
    color: #111;
  }

  .page-about .prose p,
  .page-about .chapter-lede,
  .page-about .about-chapter > p,
  .page-about .cadence__what,
  .page-about .tl-item p,
  .page-about .about-closing p {
    color: #222;
  }

  .page-about .about-closing {
    border: 1px solid #999;
    background: #fff;
  }

  .page-about .about-closing::before {
    display: none;
  }

  .page-about .archive-strip {
    border: 1px solid #999;
  }

  .page-about .archive-strip a {
    border-color: #999;
    background: #fff;
    color: #111;
  }

  .page-about .archive-strip__no {
    color: #555;
  }
}
<<<END>>>