.page-about {
  --about-angle: -3deg;
  position: relative;
  overflow-x: clip;
  color: var(--c-text);
  background:
    radial-gradient(ellipse 80% 40% at 90% 0%, rgba(228, 0, 43, 0.1), transparent 70%),
    radial-gradient(ellipse 60% 40% at 0% 30%, rgba(255, 184, 0, 0.05), transparent 70%),
    var(--c-bg);
}

.page-about section[id] {
  scroll-margin-top: 32px;
}

.page-about__crumb {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 20px var(--gutter) 4px;
}

.page-about__hero {
  position: relative;
}

.page-about__hero-copy {
  position: relative;
  z-index: 2;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: clamp(40px, 7vw, 96px) var(--gutter) clamp(72px, 10vw, 128px);
}

.page-about__hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-data);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--c-gold);
  text-transform: uppercase;
  margin-bottom: 20px;
}

.page-about__hero-kicker::before {
  content: "";
  width: 34px;
  height: 2px;
  background: var(--c-gold);
  transform: skewX(-18deg);
}

.page-about__hero-title {
  display: block;
  margin: 0;
  font-family: var(--f-headline);
  font-size: clamp(52px, 10vw, 96px);
  line-height: 0.94;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  font-weight: 900;
  color: var(--c-text);
  transform: skewX(var(--about-angle));
  transform-origin: left center;
}

.page-about__hero-title-accent {
  display: block;
  color: var(--c-primary);
  font-size: 0.68em;
  letter-spacing: 0.04em;
  text-shadow: 0 0 40px rgba(228, 0, 43, 0.35);
}

.page-about__hero-lead {
  max-width: 680px;
  margin: 26px 0 0;
  padding-left: 18px;
  border-left: 3px solid var(--c-primary);
  font-size: clamp(15px, 2.2vw, 18px);
  line-height: 1.65;
  color: var(--c-text);
}

.page-about__hero-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(20px, 4vw, 48px);
  margin-top: clamp(28px, 4vw, 44px);
  padding-top: 24px;
  border-top: 1px solid var(--c-line);
}

.page-about__hero-metric {
  min-width: 110px;
}

.page-about__hero-number {
  display: block;
  font-family: var(--f-data);
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1;
  color: var(--c-gold);
  letter-spacing: -0.02em;
}

.page-about__hero-label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--c-text-dim);
}

.page-about__hero-art {
  position: relative;
  z-index: 1;
  width: 100%;
  height: clamp(220px, 34vw, 420px);
  overflow: hidden;
  background: var(--c-bg-card);
  clip-path: polygon(0 0, 100% 22%, 100% 100%, 0 78%);
}

.page-about__hero-art::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, var(--c-bg) 0%, transparent 22%, transparent 78%, var(--c-bg) 100%),
    linear-gradient(0deg, rgba(11, 15, 20, 0.54), transparent 60%);
}

.page-about__hero-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.08);
}

.page-about__toc {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 28px var(--gutter) 8px;
  border-bottom: 1px solid var(--c-line);
}

.page-about__toc-label {
  display: block;
  margin-bottom: 12px;
  font-family: var(--f-data);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-text-dim);
}

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

.page-about__toc-link {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-line);
  clip-path: polygon(0 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
  font-family: var(--f-body);
  font-size: 14px;
  text-decoration: none;
  color: var(--c-text-dim);
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-about__toc-link:hover,
.page-about__toc-link:focus-visible {
  border-color: var(--c-gold);
  background: rgba(255, 184, 0, 0.06);
  color: var(--c-text);
}

.page-about__toc-link[data-active] {
  border-left-color: var(--c-primary);
  background: rgba(255, 184, 0, 0.08);
  color: var(--c-gold);
}

.page-about__origin {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: clamp(56px, 9vw, 120px) var(--gutter);
}

.page-about__origin-grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}

.page-about__origin-main h2 {
  margin: 8px 0 16px;
  font-family: var(--f-headline);
  font-size: clamp(30px, 5vw, 44px);
  text-transform: uppercase;
  color: var(--c-text);
  transform: skewX(var(--about-angle));
  transform-origin: left center;
}

.page-about__origin-main p {
  margin-bottom: 16px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-text-dim);
}

.page-about__origin-main .lead {
  font-size: 18px;
  color: var(--c-text);
}

.page-about__origin-cta {
  margin-top: 12px;
}

.page-about__origin-note {
  position: relative;
  padding: 28px 24px 24px;
  border-left: 3px solid var(--c-primary);
  background:
    linear-gradient(160deg, rgba(228, 0, 43, 0.1), transparent 40%),
    var(--c-bg-alt);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-about__origin-note-label {
  margin-bottom: 12px;
  font-family: var(--f-data);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-gold);
}

.page-about__origin-note-text {
  margin-bottom: 12px;
  font-family: var(--f-editorial);
  font-size: 19px;
  line-height: 1.7;
  color: var(--c-text);
}

.page-about__origin-note-meta {
  font-size: 13px;
  color: var(--c-text-dim);
}

.page-about__milestones {
  position: relative;
  padding: clamp(56px, 9vw, 120px) 0;
  background:
    linear-gradient(115deg, rgba(255, 184, 0, 0.05) 0%, transparent 36%),
    var(--c-bg-alt);
}

.page-about__milestones::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--c-primary) 0%, var(--c-gold) 55%, var(--c-cyan) 100%);
}

.page-about__milestones::after {
  content: "02";
  position: absolute;
  top: 28px;
  right: 4%;
  z-index: 0;
  pointer-events: none;
  font-family: var(--f-headline);
  font-size: clamp(120px, 20vw, 240px);
  line-height: 1;
  color: rgba(255, 255, 255, 0.03);
}

.page-about__milestones-head {
  position: relative;
  z-index: 1;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--gutter) clamp(40px, 6vw, 72px);
}

.page-about__milestones-head h2 {
  margin: 8px 0 12px;
  font-family: var(--f-headline);
  font-size: clamp(30px, 5vw, 46px);
  text-transform: uppercase;
  color: var(--c-text);
  transform: skewX(var(--about-angle));
  transform-origin: left center;
}

.page-about__milestones-head p {
  max-width: 520px;
  font-size: 15px;
  color: var(--c-text-dim);
}

.page-about__timeline {
  position: relative;
  z-index: 1;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--gutter) 48px;
}

.page-about__timeline-scroll {
  position: relative;
  display: flex;
  gap: 18px;
  overflow-x: auto;
  padding: 12px 4px 24px;
  scroll-snap-type: x mandatory;
  scrollbar-color: var(--c-gold) var(--c-bg);
}

.page-about__timeline-scroll::-webkit-scrollbar {
  height: 6px;
}

.page-about__timeline-scroll::-webkit-scrollbar-track {
  background: var(--c-bg);
}

.page-about__timeline-scroll::-webkit-scrollbar-thumb {
  background: var(--c-gold);
}

.page-about__timeline-item {
  position: relative;
  flex: 0 0 min(76vw, 280px);
  scroll-snap-align: start;
  padding: 48px 18px 22px;
  border-top: 2px solid var(--c-gold);
  background: var(--c-bg-card);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
}

.page-about__timeline-item::before {
  content: "";
  position: absolute;
  top: -12px;
  left: 22px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 4px solid var(--c-gold);
  background: var(--c-bg);
}

.page-about__timeline-year {
  margin-bottom: 10px;
  font-family: var(--f-data);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--c-primary);
}

.page-about__timeline-item h3 {
  margin-bottom: 10px;
  font-family: var(--f-headline);
  font-size: 22px;
  text-transform: uppercase;
  color: var(--c-text);
}

.page-about__timeline-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-text-dim);
}

.page-about__timeline-note {
  position: relative;
  z-index: 1;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--gutter) 40px;
}

.page-about__timeline-note p {
  display: inline-block;
  margin: 0;
  padding: 12px 18px;
  border-left: 3px solid var(--c-cyan);
  background: rgba(0, 229, 255, 0.06);
  font-family: var(--f-data);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--c-text);
}

.page-about__milestones-bg {
  width: 100%;
  height: clamp(200px, 26vw, 360px);
  overflow: hidden;
  margin-bottom: 40px;
  clip-path: polygon(0 0, 100% 16%, 100% 100%, 0 84%);
}

.page-about__milestones-bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.82) saturate(0.9);
}

.page-about__milestones-cta {
  position: relative;
  z-index: 1;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.page-about__team {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: clamp(56px, 9vw, 120px) var(--gutter);
}

.page-about__team-head {
  margin-bottom: 32px;
}

.page-about__team-head h2 {
  margin: 8px 0 12px;
  font-family: var(--f-headline);
  font-size: clamp(30px, 5vw, 46px);
  text-transform: uppercase;
  color: var(--c-text);
  transform: skewX(var(--about-angle));
  transform-origin: left center;
}

.page-about__team-head p {
  max-width: 560px;
  font-size: 15px;
  color: var(--c-text-dim);
}

.page-about__team-grid {
  display: grid;
  gap: 18px;
  margin-bottom: 28px;
}

.page-about__team-card {
  position: relative;
  padding: 32px 26px 26px;
  border-left: 4px solid var(--c-primary);
  background: var(--c-bg-card);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-about__team-card:hover,
.page-about__team-card:focus-within {
  transform: translateX(8px);
  border-left-color: var(--c-gold);
}

.page-about__team-number {
  display: block;
  margin-bottom: 14px;
  font-family: var(--f-data);
  font-size: clamp(38px, 6vw, 52px);
  line-height: 1;
  color: var(--c-gold);
}

.page-about__team-card h3 {
  margin: 0 0 10px;
  font-family: var(--f-headline);
  font-size: 20px;
  text-transform: uppercase;
  color: var(--c-text);
}

.page-about__team-card p {
  margin-bottom: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-text-dim);
}

.page-about__team-art {
  position: relative;
  margin-top: 12px;
}

.page-about__team-art img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 360px;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}

.page-about__team-caption {
  margin: 16px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--c-cyan);
  font-family: var(--f-editorial);
  font-size: 15px;
  color: var(--c-text-dim);
}

.page-about__honors {
  position: relative;
  padding: clamp(56px, 9vw, 120px) var(--gutter);
  background: linear-gradient(140deg, rgba(228, 0, 43, 0.06) 0%, transparent 50%);
}

.page-about__honors-head {
  max-width: var(--content-max);
  margin: 0 auto 40px;
}

.page-about__honors-head h2 {
  margin: 8px 0 0;
  font-family: var(--f-headline);
  font-size: clamp(30px, 5vw, 46px);
  text-transform: uppercase;
  color: var(--c-text);
  transform: skewX(var(--about-angle));
  transform-origin: left center;
}

.page-about__honors-grid {
  display: grid;
  gap: 20px;
  max-width: var(--content-max);
  margin: 0 auto;
}

.page-about__honor-card {
  position: relative;
  padding: 36px 30px 30px;
  overflow: hidden;
  border: 1px solid var(--c-line);
  background: linear-gradient(150deg, var(--c-bg-card), transparent 80%);
}

.page-about__honor-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 46%;
  height: 2px;
  background: var(--c-gold);
}

.page-about__honor-card--award::before {
  background: var(--c-primary);
}

.page-about__honor-badge {
  display: inline-block;
  margin-bottom: 18px;
  padding: 8px 12px;
  background: var(--c-primary);
  clip-path: polygon(0 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
  font-family: var(--f-data);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--c-text);
}

.page-about__honor-card--award .page-about__honor-badge {
  background: var(--c-gold);
  color: #0b0f14;
}

.page-about__honor-card h3 {
  margin: 0 0 10px;
  font-family: var(--f-headline);
  font-size: 22px;
  text-transform: uppercase;
  color: var(--c-text);
}

.page-about__honor-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-text-dim);
}

.page-about__honors-trust {
  margin: 48px auto 0;
  max-width: var(--content-max);
  padding: 24px;
  border-left: 3px solid var(--c-cyan);
  background: var(--c-bg-card);
}

.page-about__honors-trust p {
  margin: 0 0 6px;
  font-family: var(--f-data);
  font-size: 14px;
  color: var(--c-text);
}

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

.page-about__hunan {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: clamp(56px, 9vw, 120px) var(--gutter);
}

.page-about__hunan-grid {
  display: grid;
  gap: 32px;
}

.page-about__hunan-main h2 {
  margin: 8px 0 16px;
  font-family: var(--f-headline);
  font-size: clamp(30px, 5vw, 46px);
  text-transform: uppercase;
  color: var(--c-text);
  transform: skewX(var(--about-angle));
  transform-origin: left center;
}

.page-about__hunan-quote {
  margin: 20px 0;
  padding: 0;
  border: none;
  font-family: var(--f-editorial);
  font-size: 22px;
  line-height: 1.6;
  color: var(--c-gold);
}

.page-about__hunan-main > p {
  margin-bottom: 16px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-text-dim);
}

.page-about__hunan-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.page-about__hunan-map {
  position: relative;
  padding: 20px;
  background: linear-gradient(180deg, var(--c-bg-card), var(--c-bg-alt));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}

.page-about__hunan-svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-about__hunan-dot {
  cursor: pointer;
  animation: page-about-pulse 2.4s infinite;
}

.page-about__hunan-dot--capital {
  animation-delay: 0.2s;
}

.page-about__hunan-words {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.page-about__hunan-word {
  padding: 6px 10px;
  border: 1px solid var(--c-line);
  background: rgba(255, 255, 255, 0.02);
  font-size: 13px;
  color: var(--c-text-dim);
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}

.page-about__hunan-word:hover {
  border-color: var(--c-cyan);
  color: var(--c-cyan);
}

.page-about__hunan-slogan {
  margin: 16px 0 0;
  text-align: right;
  font-family: var(--f-editorial);
  font-size: 18px;
  color: var(--c-gold);
}

@keyframes page-about-pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.55;
  }
}

@media (min-width: 768px) {
  .page-about__origin-grid {
    grid-template-columns: minmax(0, 1.8fr) minmax(0, 1fr);
  }

  .page-about__team-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about__honors-grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .page-about__honor-card--award {
    transform: translateY(48px);
  }

  .page-about__hunan-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-about__timeline-note {
    text-align: right;
  }

  .page-about__timeline-note p {
    display: inline-block;
  }
}

@media (min-width: 1080px) {
  .page-about__hero-copy {
    min-height: 56vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
}