.page-about {
  --about-gray-line: rgba(217, 242, 242, 0.14);
  --about-gold-glow: rgba(212, 175, 55, 0.16);
  --about-neon-glow: rgba(0, 255, 135, 0.14);
  position: relative;
  padding: 40px 20px 88px;
  min-height: 100vh;
  background:
    radial-gradient(1200px 480px at 8% 10%, rgba(0, 255, 135, 0.07), transparent 60%),
    radial-gradient(960px 420px at 92% 28%, rgba(212, 175, 55, 0.07), transparent 55%),
    linear-gradient(135deg, rgba(30, 140, 90, 0.05) 0%, rgba(11, 29, 51, 0) 46%);
}

.page-about .about-shell {
  max-width: 1240px;
  margin-inline: auto;
  display: grid;
  gap: 72px;
}

.page-about img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.page-about .breadcrumb {
  margin: 0 0 18px;
  font-size: 0.85rem;
  color: var(--ice);
  opacity: 0.78;
}

.page-about .breadcrumb a {
  color: var(--neon);
  text-decoration: none;
}

.page-about .breadcrumb a:hover {
  text-decoration: underline;
}

.page-about .breadcrumb [aria-current="page"] {
  color: var(--gold);
  opacity: 1;
}

.page-about .about-eyebrow {
  margin: 0 0 8px;
}

.page-about h1 {
  margin: 0 0 18px;
  max-width: 15em;
  font-size: clamp(2.1rem, 6vw, 3.8rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-about h2 {
  margin: 0;
  font-size: clamp(1.55rem, 3.6vw, 2.3rem);
  line-height: 1.18;
  color: var(--white);
}

.page-about .about-masthead-grid {
  display: grid;
  gap: 28px;
}

.page-about .about-masthead-copy {
  display: grid;
  gap: 14px;
}

.page-about .about-lead {
  max-width: 40rem;
  margin: 0;
  font-size: 1.02rem;
  line-height: 1.75;
  color: var(--ice);
}

.page-about .about-anchor-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

.page-about .about-anchor-nav a {
  padding: 8px 14px;
  border: 1px solid var(--about-gray-line);
  border-radius: var(--radius-pill);
  color: var(--ice);
  text-decoration: none;
  font-size: 0.88rem;
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease);
}

.page-about .about-anchor-nav a:hover {
  border-color: var(--neon);
  color: var(--neon);
}

.page-about .about-status {
  align-self: start;
  padding: 22px 18px;
  border: 1px solid var(--about-gray-line);
  border-radius: var(--radius);
  background: linear-gradient(150deg, rgba(42, 59, 76, 0.5), rgba(11, 29, 51, 0.72));
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.page-about .about-status dl {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px 14px;
  margin: 0;
}

.page-about .about-status dl > div {
  display: grid;
  gap: 4px;
}

.page-about .about-status dt {
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ice);
  opacity: 0.72;
}

.page-about .about-status .num {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin: 0;
  font-family: var(--font-num);
  font-size: 1.45rem;
  font-weight: 700;
  line-height: 1;
  color: var(--neon);
}

.page-about .about-status .num em {
  font-family: var(--font-ui);
  font-size: 0.76rem;
  font-weight: 500;
  font-style: normal;
  color: var(--ice);
  opacity: 0.8;
}

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

.page-about .about-section {
  display: grid;
  gap: 22px;
  scroll-margin-top: 96px;
}

.page-about .about-section:target {
  outline: 1px solid rgba(0, 255, 135, 0.22);
  outline-offset: 14px;
  border-radius: var(--radius);
}

.page-about .about-section-head {
  display: grid;
  gap: 12px;
}

.page-about .about-section-intro {
  max-width: 52rem;
  margin: 0;
  line-height: 1.7;
  color: var(--ice);
  opacity: 0.86;
}

.page-about .about-manifesto {
  padding: 24px;
  border: 1px solid var(--about-gray-line);
  border-radius: var(--radius);
  background: linear-gradient(150deg, rgba(42, 59, 76, 0.24), rgba(11, 29, 51, 0.32));
}

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

.page-about .about-manifesto-figure {
  margin: 0;
}

.page-about .about-manifesto-figure img {
  display: block;
  width: 100%;
  aspect-ratio: 8 / 5;
  object-fit: cover;
}

.page-about .about-manifesto-copy {
  display: grid;
  gap: 20px;
  align-content: center;
}

.page-about .about-quote {
  margin: 0;
  padding-left: 18px;
  border-left: 3px solid var(--gold);
  font-size: clamp(1.3rem, 3vw, 1.85rem);
  font-weight: 600;
  line-height: 1.4;
  color: var(--gold);
}

.page-about .about-manifesto-copy p {
  margin: 0;
  line-height: 1.7;
  color: var(--ice);
}

.page-about .about-timeline-wrap {
  display: grid;
  gap: 30px;
}

.page-about .about-timeline {
  position: relative;
  display: grid;
  gap: 18px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 19px;
  width: 2px;
  background: linear-gradient(180deg, var(--gold), var(--neon) 72%, transparent);
  opacity: 0.34;
}

.page-about .about-timeline-item {
  position: relative;
  padding-left: 58px;
}

.page-about .about-timeline-marker {
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 2px solid var(--gold);
  border-radius: 50%;
  background: var(--space-deep);
  color: var(--gold);
  font-family: var(--font-num);
  font-size: 0.9rem;
  font-weight: 700;
  box-shadow: 0 0 0 5px rgba(212, 175, 55, 0.12), 0 0 20px rgba(212, 175, 55, 0.28);
}

.page-about .about-timeline-card {
  padding: 18px 20px;
  border: 1px solid var(--about-gray-line);
  border-radius: 16px;
  background: rgba(42, 59, 76, 0.34);
  transition: transform 0.3s var(--ease), background 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-about .about-timeline-item:hover .about-timeline-card {
  border-color: var(--neon);
  background: rgba(42, 59, 76, 0.52);
  transform: translateX(6px);
}

.page-about .about-timeline-card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
  line-height: 1.3;
  color: var(--white);
}

.page-about .about-timeline-card p {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.68;
  color: var(--ice);
}

.page-about .about-milestone-visual {
  margin: 0;
}

.page-about .about-milestone-visual img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-about .about-quality-grid {
  display: grid;
  gap: 26px;
}

.page-about .about-quality-steps {
  display: grid;
  gap: 14px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.page-about .about-quality-steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px 18px;
  border-left: 3px solid var(--gui-zhou);
  border-radius: 14px;
  background: rgba(30, 140, 90, 0.08);
}

.page-about .about-step-num {
  font-family: var(--font-num);
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--gui-zhou);
}

.page-about .about-quality-steps h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  color: var(--white);
}

.page-about .about-quality-steps p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--ice);
}

.page-about .about-quality-right {
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-about .about-quality-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.page-about .about-quality-metrics li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px;
  border: 1px solid var(--about-gray-line);
  border-radius: 14px;
  background: rgba(217, 242, 242, 0.045);
}

.page-about .about-quality-metrics .num {
  font-family: var(--font-num);
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
}

.page-about .about-quality-metrics span {
  font-size: 0.84rem;
  line-height: 1.4;
  color: var(--ice);
}

.page-about .about-quality-visual {
  margin: 0;
}

.page-about .about-quality-visual img {
  display: block;
  width: 100%;
  aspect-ratio: 720 / 400;
  object-fit: cover;
}

.page-about .about-trust {
  padding: 34px 26px;
  border: 1px solid rgba(212, 175, 55, 0.18);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.1), rgba(30, 140, 90, 0.1));
  text-align: center;
}

.page-about .about-trust h2 {
  margin-bottom: 12px;
}

.page-about .about-trust p {
  max-width: 38rem;
  margin: 0 auto;
  line-height: 1.7;
  color: var(--ice);
}

.page-about .about-trust-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 20px;
}

@media (min-width: 900px) {
  .page-about {
    padding: 64px 36px 120px;
  }

  .page-about .about-shell {
    gap: 100px;
  }

  .page-about .about-masthead-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
    gap: 48px;
    align-items: start;
  }

  .page-about .about-status {
    position: sticky;
    top: 96px;
  }

  .page-about .about-status .num {
    font-size: 1.8rem;
  }

  .page-about .about-manifesto-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 32px;
    align-items: center;
  }

  .page-about .about-timeline-wrap {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 40px;
    align-items: start;
  }

  .page-about .about-milestone-visual {
    position: sticky;
    top: 112px;
  }

  .page-about .about-quality-grid {
    grid-template-columns: minmax(0, 1fr) minmax(300px, 0.85fr);
    gap: 36px;
    align-items: start;
  }

  .page-about .about-quality-right {
    order: 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-timeline-card,
  .page-about .about-timeline-item:hover .about-timeline-card,
  .page-about .about-anchor-nav a,
  .page-about .about-status,
  .page-about .about-milestone-visual {
    transform: none;
    transition: none;
  }
}