.page-about {
  --about-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
}

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding-top: calc(var(--header-h) + 40px);
  padding-bottom: clamp(48px, 7vw, 96px);
  background: radial-gradient(circle at 72% 22%, rgba(14, 59, 46, 0.75) 0%, transparent 44%), var(--c-ink);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: -6%;
  width: 34%;
  height: 100%;
  background: linear-gradient(105deg, transparent 0%, transparent 38%, rgba(212, 175, 55, 0.12) 38.5%, rgba(212, 175, 55, 0.12) 60%, transparent 60.5%);
  clip-path: polygon(8% 0, 100% 0, 92% 100%, 0 100%);
  pointer-events: none;
}

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

.page-about .about-hero__crumbs {
  margin-bottom: 28px;
}

.page-about .about-hero__layout {
  display: grid;
  gap: 32px;
  margin-top: 40px;
}

.page-about .about-hero__media {
  order: 1;
}

.page-about .about-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-left: 2px solid var(--c-gold);
  filter: saturate(0.78) contrast(1.06);
}

.page-about .about-hero__content {
  order: 2;
}

.page-about .about-hero__title {
  margin-top: 16px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(2.1rem, 6vw, 4.8rem);
  line-height: 1.06;
  letter-spacing: -0.035em;
  color: var(--c-paper);
  text-shadow: 0 2px 0 rgba(0, 0, 0, 0.3);
}

.page-about .about-hero__sub {
  max-width: 46ch;
  margin-top: 20px;
  font-size: clamp(1rem, 1.4vw, 1.18rem);
  line-height: 1.8;
  color: var(--c-mist);
}

.page-about .about-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  margin-top: 32px;
}

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

.page-about .about-hero__meta .stat-block__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.4rem, 2.4vw, 2.2rem);
  line-height: 1;
  color: var(--c-gold);
}

.page-about .about-hero__meta .stat-block__label {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--c-mist);
}

.page-about .about-start {
  padding: clamp(48px, 6vw, 88px) 0;
  background: linear-gradient(135deg, transparent 0%, transparent 40%, rgba(212, 175, 55, 0.06) 40.5%, rgba(212, 175, 55, 0.06) 41%, transparent 41.5%), var(--c-pine);
}

.page-about .about-start__grid {
  display: grid;
  gap: 28px;
  grid-template-columns: 1fr;
}

.page-about .about-start__main h2 {
  margin: 16px 0 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(1.6rem, 3.4vw, 2.6rem);
  line-height: 1.2;
  color: var(--c-paper);
}

.page-about .about-start__main p {
  margin-top: 12px;
  color: var(--c-mist);
  line-height: 1.9;
}

.page-about .about-start__aside {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
  padding-left: 16px;
  border-left: 2px solid var(--c-gold);
}

.page-about .about-start__note {
  font-family: var(--about-serif);
  font-style: italic;
  color: var(--c-paper);
  font-size: 1.05rem;
  line-height: 1.7;
}

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

.page-about .about-section-head h2 {
  margin-top: 12px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(1.7rem, 3.6vw, 2.75rem);
  line-height: 1.18;
  color: var(--c-paper);
}

.page-about .about-section-head p {
  max-width: 44ch;
  margin-top: 12px;
  color: var(--c-mist);
  line-height: 1.8;
}

.page-about .about-timeline-section {
  padding: clamp(48px, 6vw, 88px) 0;
  background: var(--c-carbon);
}

.page-about .about-timeline {
  display: grid;
  gap: 40px;
  margin-top: 24px;
}

.page-about .about-timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 20px;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: 31px;
  top: 32px;
  bottom: -48px;
  width: 2px;
  background: linear-gradient(to bottom, var(--c-gold), rgba(212, 175, 55, 0));
}

.page-about .about-timeline__item:last-child::before {
  display: none;
}

.page-about .about-timeline__node {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border: 1px solid rgba(212, 175, 55, 0.6);
  border-radius: 2px;
  background: var(--c-pine);
  position: relative;
  z-index: 1;
}

.page-about .about-timeline__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--c-gold);
}

.page-about .about-timeline__card {
  padding: 24px 22px;
  border: 1px solid rgba(168, 197, 184, 0.18);
  border-left: 3px solid var(--c-gold);
  background: linear-gradient(135deg, var(--c-ink) 0%, var(--c-pine) 140%);
  box-shadow: 8px 10px 0 rgba(0, 0, 0, 0.22);
}

.page-about .about-timeline__card h3 {
  margin-bottom: 10px;
  font-family: var(--about-serif);
  font-style: italic;
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--c-paper);
}

.page-about .about-timeline__card p {
  color: var(--c-mist);
  font-size: 0.95rem;
  line-height: 1.85;
}

.page-about .about-timeline__card img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  margin-top: 18px;
}

.page-about .about-capability {
  padding: clamp(48px, 6vw, 88px) 0;
  background: linear-gradient(rgba(212, 175, 55, 0.045) 1px, transparent 1px), linear-gradient(90deg, rgba(212, 175, 55, 0.045) 1px, transparent 1px), var(--c-ink);
  background-size: 44px 44px;
}

.page-about .about-capability__grid {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}

.page-about .capability-cell {
  padding: 24px 22px;
  border: 1px solid rgba(168, 197, 184, 0.18);
  background: rgba(11, 31, 26, 0.84);
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.page-about .capability-cell:hover,
.page-about .capability-cell:focus-within {
  border-color: var(--c-gold);
  transform: translateY(-4px);
}

.page-about .capability-cell h3 {
  margin-bottom: 8px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 1.08rem;
  color: var(--c-paper);
}

.page-about .capability-cell p {
  color: var(--c-mist);
  font-size: 0.92rem;
  line-height: 1.7;
}

.page-about .capability-cell__detail {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed rgba(212, 175, 55, 0.5);
  color: var(--c-paper);
  font-size: 0.85rem;
  line-height: 1.75;
  opacity: 0.9;
  transition: color 0.25s ease;
}

.page-about .capability-cell:hover .capability-cell__detail,
.page-about .capability-cell:focus-within .capability-cell__detail {
  color: var(--c-gold);
}

.page-about .about-capability__chart {
  margin-top: 40px;
  padding: 24px;
  border-right: 2px solid var(--c-gold);
  background: rgba(14, 59, 46, 0.34);
}

.page-about .about-capability__chart svg {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  margin-top: 12px;
}

.page-about .about-capability__chart text {
  font-family: var(--font-mono);
}

.page-about .about-community {
  padding: clamp(48px, 6vw, 88px) 0;
  background: var(--c-pine);
}

.page-about .about-community__grid {
  display: grid;
  gap: 32px;
  grid-template-columns: 1fr;
}

.page-about .about-community__content h2 {
  margin-top: 12px;
  margin-bottom: 16px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(1.7rem, 3.6vw, 2.75rem);
  line-height: 1.2;
  color: var(--c-paper);
}

.page-about .about-community__content p {
  margin-top: 12px;
  color: var(--c-mist);
  line-height: 1.85;
}

.page-about .about-community__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 28px;
}

.page-about .about-community__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-top: 2px solid var(--c-gold);
}

.page-about .about-trust {
  padding: clamp(40px, 5vw, 72px) 0;
  background: var(--c-carbon);
}

.page-about .about-trust__inner {
  padding-top: 28px;
  border-top: 2px solid var(--c-gold);
}

.page-about .about-trust__statement {
  max-width: 60ch;
  font-weight: 700;
  font-size: clamp(1rem, 2vw, 1.2rem);
  line-height: 1.8;
  color: var(--c-paper);
}

.page-about .about-trust__inner p:not(.about-trust__statement) {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--c-mist);
}

.page-about .about-trust__links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  margin-top: 24px;
}

.page-about [data-reveal] {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.page-about [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-about [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

@media (min-width: 768px) {
  .page-about .about-hero__layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }

  .page-about .about-hero__media {
    order: 0;
  }

  .page-about .about-hero__title {
    font-size: clamp(2.6rem, 5vw, 4.8rem);
  }

  .page-about .about-start__grid {
    grid-template-columns: 1.5fr 0.5fr;
    align-items: start;
  }

  .page-about .about-section-head {
    position: sticky;
    top: calc(var(--header-h) + 20px);
    z-index: 2;
  }

  .page-about .about-timeline {
    padding-left: 2px;
  }

  .page-about .about-timeline__item {
    grid-template-columns: 84px 1fr;
    gap: 32px;
  }

  .page-about .about-timeline__item::before {
    left: 41px;
  }

  .page-about .about-timeline__node {
    justify-self: center;
  }

  .page-about .about-timeline__card {
    padding: 32px 34px;
  }

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

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

@media (min-width: 1100px) {
  .page-about .about-hero__sub {
    padding-right: 4ch;
  }

  .page-about .about-timeline__card {
    max-width: 760px;
  }
}