.page-about {
  --about-gold: #c9a44b;
  --about-gold-soft: rgba(201, 164, 75, 0.28);
  --about-gold-faint: rgba(201, 164, 75, 0.12);
  --about-line: rgba(255, 255, 255, 0.08);
  position: relative;
  min-height: 100vh;
  background:
    radial-gradient(circle at 15% 20%, rgba(28, 58, 108, 0.35), transparent 38%),
    linear-gradient(180deg, var(--color-midnight) 0%, var(--color-navy) 48%, var(--color-deep-space) 100%);
  color: var(--color-cream);
  font-family: var(--font-body);
  line-height: 1.75;
  padding: 2rem 1.25rem 4rem;
}

.page-about *,
.page-about *::before,
.page-about *::after {
  box-sizing: border-box;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  font-family: var(--font-heading);
  font-weight: 400;
  color: var(--color-cloud);
}

.page-about h1 {
  font-size: clamp(2.25rem, 6vw, 4.25rem);
  line-height: 1.08;
  letter-spacing: 0.01em;
  margin: 0 0 1.25rem;
}

.page-about h2 {
  font-size: clamp(1.75rem, 4.5vw, 3rem);
  line-height: 1.12;
  margin: 0 0 1.25rem;
}

.page-about h3 {
  font-size: 1.15rem;
  margin: 0 0 0.35rem;
}

.page-about p {
  margin: 0 0 1rem;
}

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

.page-about .breadcrumb {
  max-width: var(--content-max);
  margin: 0 auto 2rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.page-about .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .breadcrumb-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.page-about .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  color: var(--about-gold-soft);
}

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

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

.page-about .breadcrumb-current {
  color: var(--color-cloud);
}

.page-about .section-kicker {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--about-gold);
  margin-bottom: 0.75rem;
}

.page-about .section-sub {
  font-size: 1.0625rem;
  color: var(--color-cloud);
  max-width: 42rem;
}

.page-about .about-hero {
  max-width: var(--content-max);
  margin: 0 auto 4rem;
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

.page-about .about-hero-text {
  min-width: 0;
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.page-about .about-hero-figure {
  position: relative;
  margin: 0;
  padding: 0.75rem;
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.02);
}

.page-about .about-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: calc(var(--radius-lg) - 0.5rem);
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-float);
}

.page-about .btn {
  border-radius: var(--radius-sm);
  padding: 0.7rem 1.4rem;
  text-decoration: none;
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-about .btn-gold {
  background: var(--about-gold);
  border: 1px solid var(--about-gold);
  color: var(--color-midnight);
}

.page-about .btn-gold:hover {
  background: #b8903c;
  border-color: #b8903c;
}

.page-about .btn-ghost {
  background: transparent;
  border: 1px solid var(--border-soft);
  color: var(--color-cream);
}

.page-about .btn-ghost:hover {
  border-color: var(--about-gold);
  color: var(--about-gold);
}

.page-about .about-section {
  max-width: var(--content-max);
  margin: 0 auto 4rem;
}

.page-about .about-section-index {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.18em;
  color: var(--about-gold);
  background: rgba(201, 164, 75, 0.08);
  border: 1px solid var(--border-gold);
  border-radius: 999px;
  padding: 0.25rem 0.85rem;
  margin-bottom: 1rem;
  pointer-events: none;
}

.page-about .about-section-content {
  position: relative;
  min-width: 0;
  isolation: isolate;
}

.page-about .about-principles {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
}

.page-about .about-principles li {
  padding-left: 1.25rem;
  border-left: 2px solid var(--about-gold);
}

.page-about .about-principles strong {
  color: var(--color-cloud);
}

.page-about .about-timeline-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.14;
  border-radius: var(--radius-lg);
  pointer-events: none;
}

.page-about .timeline-list {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 2.5rem 0 0;
  padding: 0;
}

.page-about .timeline-item {
  position: relative;
  padding-left: 2rem;
  margin-bottom: 2.25rem;
}

.page-about .timeline-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 0.875rem;
  height: 0.875rem;
  border-radius: 50%;
  background: var(--about-gold);
  box-shadow: 0 0 0 4px rgba(201, 164, 75, 0.16);
}

.page-about .timeline-item::after {
  content: "";
  position: absolute;
  left: 0.4375rem;
  top: 1.9rem;
  bottom: -2rem;
  width: 1px;
  background: linear-gradient(to bottom, var(--about-gold-soft), transparent);
}

.page-about .timeline-item:last-child::after {
  display: none;
}

.page-about .timeline-date {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--about-gold);
  letter-spacing: 0.04em;
  margin-bottom: 0.25rem;
}

.page-about .timeline-body p {
  color: var(--color-cloud);
  max-width: 36rem;
}

.page-about .taxonomy-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.75rem 0 0;
  padding: 0;
}

.page-about .taxonomy-tags .tag {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-gold);
  border-radius: 999px;
  padding: 0.35rem 0.95rem;
  font-size: 0.875rem;
  color: var(--color-cream);
}

.page-about .about-taxonomy-figure {
  margin: 2.5rem 0 0;
  padding: 0.75rem;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.02);
}

.page-about .about-taxonomy-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: calc(var(--radius-lg) - 0.5rem);
}

.page-about .feedback-panel {
  margin-top: 2rem;
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(201, 164, 75, 0.1), rgba(255, 255, 255, 0.02));
  padding: 1.5rem;
}

.page-about .feedback-panel-head {
  border-bottom: 1px solid var(--border-soft);
  padding-bottom: 0.75rem;
  margin-bottom: 1.25rem;
}

.page-about .feedback-kicker {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--about-gold);
  margin-bottom: 0.25rem;
}

.page-about .feedback-panel-title {
  margin: 0;
}

.page-about .feedback-panel-body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
}

.page-about .btn-outline {
  background: transparent;
  border: 1px solid var(--border-gold);
  color: var(--color-amber);
}

.page-about .btn-outline:hover {
  background: var(--about-gold-faint);
  color: var(--about-gold);
}

.page-about .about-index-nav {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 2rem;
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.02);
}

.page-about .about-index-nav .section-head {
  margin-top: 0;
}

.page-about .about-index-nav p {
  margin-bottom: 1.5rem;
}

.page-about .about-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.page-about .about-index-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1rem;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  color: var(--color-cream);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-about .about-index-list a::after {
  content: "↗";
  color: var(--about-gold);
}

.page-about .about-index-list a:hover {
  border-color: var(--border-gold);
  background: rgba(201, 164, 75, 0.08);
  color: var(--about-gold);
}

@media (min-width: 900px) {
  .page-about {
    padding: 3rem 2.5rem 5rem;
  }

  .page-about .breadcrumb {
    margin-bottom: 3rem;
  }

  .page-about .about-hero {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 3rem;
  }

  .page-about .about-hero-text {
    max-width: 48rem;
  }

  .page-about .about-section {
    display: grid;
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 2.5rem;
    align-items: start;
  }

  .page-about .about-section-index {
    position: sticky;
    top: 2rem;
    justify-self: start;
    align-self: start;
    border: 0;
    background: transparent;
    padding: 0;
    font-size: clamp(3rem, 6vw, 4.5rem);
    line-height: 1;
    letter-spacing: 0;
    color: rgba(201, 164, 75, 0.12);
    -webkit-text-stroke: 1px var(--about-gold-soft);
  }

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

@media (min-width: 1200px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 1fr) 400px;
    gap: 4rem;
  }

  .page-about .about-hero-figure img {
    max-height: 540px;
    object-fit: cover;
  }

  .page-about .about-section {
    grid-template-columns: 160px minmax(0, 1fr);
    gap: 4rem;
  }

  .page-about .about-section-index {
    font-size: 5rem;
  }

  .page-about .about-index-list {
    grid-template-columns: repeat(5, 1fr);
  }
}