.page-about {
  --about-grid-unit: 28px;
  position: relative;
  font-family: var(--font-body);
  color: var(--color-black);
  background-color: var(--color-white);
}

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-height) + 40px) 0 64px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(140deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  background-size: var(--about-grid-unit) var(--about-grid-unit), var(--about-grid-unit) var(--about-grid-unit), cover;
  color: var(--color-white);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 62% 72% at 85% 18%, rgba(212, 175, 55, 0.16), transparent 70%);
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 112%;
  height: 8px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-gold-light) 70%, transparent);
  transform: skewX(-18deg);
  transform-origin: left center;
  pointer-events: none;
  z-index: 2;
}

.page-about .about-hero-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

.page-about .about-hero .breadcrumb {
  margin: 0 0 40px;
  color: rgba(255, 255, 255, 0.64);
}

.page-about .about-hero .breadcrumb a {
  color: rgba(255, 255, 255, 0.86);
  text-decoration: none;
  transition: color var(--transition-1);
}

.page-about .about-hero .breadcrumb a:hover {
  color: var(--color-gold-light);
}

.page-about .about-hero-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

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

.page-about .about-hero-tag {
  display: inline-block;
  padding: 6px 14px;
  border: 1px solid rgba(212, 175, 55, 0.6);
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gold-light);
  margin-bottom: 18px;
}

.page-about .about-hero h1 {
  margin: 0 0 14px;
  font-family: var(--font-heading);
  font-size: clamp(2.1rem, 9vw, 4.4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--color-white);
  max-width: 15em;
}

.page-about .about-lead {
  margin: 0 0 26px;
  font-size: 1.0625rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.82);
  max-width: 34em;
}

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

.page-about .about-hero .btn-outline {
  border-color: rgba(255, 255, 255, 0.68);
  color: var(--color-white);
}

.page-about .about-hero .btn-outline:hover {
  border-color: var(--color-gold);
  background: var(--color-gold);
  color: var(--color-primary-dark);
}

.page-about .about-hero-meta {
  display: none;
}

.page-about .about-origin {
  padding: 72px 0;
  background: var(--color-white);
}

.page-about .about-section-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 36px;
}

.page-about .about-index {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--color-gold);
  border: 1px solid rgba(212, 175, 55, 0.65);
  border-radius: var(--radius-pill);
  padding: 5px 12px;
  flex-shrink: 0;
}

.page-about .about-section-head h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 4vw, 2.5rem);
  line-height: 1.2;
  color: var(--color-primary);
}

.page-about .about-coord {
  margin-left: auto;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-silver);
  display: none;
}

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

.page-about .origin-copy p {
  margin: 0 0 18px;
  font-size: 1rem;
  line-height: 1.75;
  color: #2E2E2E;
}

.page-about .origin-copy strong {
  color: var(--color-primary);
  font-weight: 700;
}

.page-about .origin-copy .btn {
  margin-top: 20px;
}

.page-about .origin-aside {
  position: relative;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(212, 175, 55, 0.4);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  backdrop-filter: blur(8px);
}

.page-about .origin-aside::before {
  content: "";
  position: absolute;
  top: 18px;
  left: -2px;
  width: 4px;
  height: 48px;
  background: var(--color-gold);
  border-radius: 0 4px 4px 0;
}

.page-about .aside-label {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 16px;
}

.page-about .aside-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
}

.page-about .aside-list li {
  position: relative;
  padding: 7px 0 7px 22px;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--color-primary);
  border-bottom: 1px solid rgba(58, 107, 90, 0.18);
}

.page-about .aside-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.05em;
  width: 10px;
  height: 2px;
  background: var(--color-gold);
}

.page-about .aside-note {
  display: block;
  font-size: 0.85rem;
  line-height: 1.55;
  color: var(--color-muted);
  font-style: italic;
}

.page-about .about-capability {
  position: relative;
  padding: 72px 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(145deg, var(--color-primary-ink) 0%, var(--color-primary-dark) 70%);
  background-size: var(--about-grid-unit) var(--about-grid-unit), var(--about-grid-unit) var(--about-grid-unit), cover;
  color: var(--color-white);
  overflow: hidden;
}

.page-about .about-capability .about-section-head h2,
.page-about .about-service .about-section-head h2 {
  color: var(--color-white);
}

.page-about .about-capability .about-coord,
.page-about .about-service .about-coord {
  color: rgba(255, 255, 255, 0.5);
}

.page-about .capability-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-bottom: 40px;
}

.page-about .stat-card {
  position: relative;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 28px 24px 22px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.18);
  border-top: 3px solid transparent;
  transition: transform var(--transition-1), box-shadow var(--transition-1), border-color var(--transition-1);
}

.page-about .stat-card:hover {
  transform: translateY(-4px);
  border-top-color: var(--color-gold);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.26);
}

.page-about .stat-tag {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  border: 1px solid rgba(212, 175, 55, 0.6);
  border-radius: var(--radius-pill);
  padding: 3px 10px;
  margin-bottom: 16px;
  background: rgba(212, 175, 55, 0.1);
}

.page-about .stat-num {
  display: block;
  font-family: var(--font-heading);
  font-size: 2.6rem;
  line-height: 1;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.page-about .stat-plus {
  color: var(--color-gold);
}

.page-about .stat-label {
  display: block;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  font-weight: 600;
  color: var(--color-black);
}

.page-about .stat-expand {
  margin-top: 10px;
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--color-muted);
  max-height: 6em;
  opacity: 1;
  transition: max-height var(--transition-2), opacity var(--transition-2), margin-top var(--transition-2);
}

.page-about .capability-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: center;
}

.page-about figure {
  margin: 0;
}

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

.page-about .capability-note {
  margin: 0;
  font-size: 1rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.78);
  padding: 22px;
  background: rgba(255, 255, 255, 0.06);
  border-left: 3px solid var(--color-gold);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.page-about .about-milestones {
  padding: 72px 0;
  background: var(--color-white);
}

.page-about .milestone-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: start;
}

.page-about .milestone-list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-about .milestone-item {
  position: relative;
  padding: 0 0 40px 28px;
  margin: 0;
  animation: about-rise 0.55s ease both;
}

.page-about .milestone-item:nth-child(1) { animation-delay: 0.05s; }
.page-about .milestone-item:nth-child(2) { animation-delay: 0.15s; }
.page-about .milestone-item:nth-child(3) { animation-delay: 0.25s; }
.page-about .milestone-item:nth-child(4) { animation-delay: 0.35s; }

.page-about .milestone-rail {
  position: absolute;
  left: 7px;
  top: 14px;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-gold) 0%, rgba(212, 175, 55, 0.25) 100%);
}

.page-about .milestone-item:last-child .milestone-rail {
  display: none;
}

.page-about .milestone-dot {
  position: absolute;
  left: 0;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-gold);
  box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.18);
  z-index: 1;
}

.page-about .milestone-dot::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background: var(--color-white);
}

.page-about .milestone-phase {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gold);
  background: rgba(212, 175, 55, 0.12);
  border-radius: var(--radius-pill);
  padding: 4px 12px;
}

.page-about .milestone-content h3 {
  margin: 8px 0 8px;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  line-height: 1.35;
  color: var(--color-primary);
}

.page-about .milestone-content p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.65;
  color: #444;
}

.page-about .milestone-figure {
  max-width: 520px;
}

@keyframes about-rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-about .about-service {
  position: relative;
  padding: 72px 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(145deg, var(--color-primary-dark) 0%, var(--color-primary-ink) 80%);
  background-size: var(--about-grid-unit) var(--about-grid-unit), var(--about-grid-unit) var(--about-grid-unit), cover;
  color: var(--color-white);
}

.page-about .service-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-bottom: 40px;
}

.page-about .service-item {
  padding: 28px 24px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-1), transform var(--transition-1);
}

.page-about .service-item:hover {
  border-color: rgba(212, 175, 55, 0.7);
  transform: translateY(-3px);
}

.page-about .service-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(212, 175, 55, 0.14);
  border: 1px solid rgba(212, 175, 55, 0.45);
  margin-bottom: 18px;
}

.page-about .service-item h3 {
  margin: 0 0 10px;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  color: var(--color-gold-light);
}

.page-about .service-item p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.72);
}

.page-about .service-figure {
  max-width: 640px;
}

.page-about .about-cta {
  position: relative;
  padding: 72px 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  overflow: hidden;
}

.page-about .about-cta::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -10%;
  width: 50%;
  height: 160%;
  background: radial-gradient(ellipse at center, rgba(212, 175, 55, 0.18), transparent 70%);
}

.page-about .about-cta-inner {
  position: relative;
  z-index: 1;
  text-align: center;
}

.page-about .cta-coord {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gold);
  border: 1px solid rgba(212, 175, 55, 0.5);
  border-radius: var(--radius-pill);
  padding: 5px 14px;
  margin-bottom: 22px;
}

.page-about .about-cta h2 {
  margin: 0 0 12px;
  font-family: var(--font-heading);
  font-size: clamp(1.7rem, 5vw, 2.7rem);
  color: var(--color-white);
}

.page-about .about-cta p {
  margin: 0 auto 28px;
  max-width: 30em;
  font-size: 1rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.75);
}

.page-about .cta-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.page-about .about-cta .btn-outline {
  border-color: rgba(255, 255, 255, 0.68);
  color: var(--color-white);
}

.page-about .about-cta .btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-white);
}

@media (prefers-reduced-motion: reduce) {
  .page-about .milestone-item {
    animation: none;
  }
}

@media (min-width: 768px) {
  .page-about .about-hero {
    padding: calc(var(--header-height) + 72px) 0 92px;
  }

  .page-about .about-hero-inner {
    padding: 0 32px;
  }

  .page-about .about-hero-layout {
    grid-template-columns: 1fr auto;
    align-items: end;
    gap: 48px;
  }

  .page-about .about-hero-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 12px;
    padding-bottom: 8px;
  }

  .page-about .about-hero-coord {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.55);
  }

  .page-about .about-hero-index {
    font-family: var(--font-heading);
    font-size: 6rem;
    line-height: 1;
    font-weight: 700;
    color: rgba(212, 175, 55, 0.28);
    letter-spacing: -0.04em;
    user-select: none;
  }

  .page-about .about-hero-slash {
    display: block;
    width: 90px;
    height: 2px;
    background: var(--color-gold);
    transform: skewX(-24deg);
  }

  .page-about .about-origin,
  .page-about .about-milestones,
  .page-about .about-capability,
  .page-about .about-service,
  .page-about .about-cta {
    padding-top: 96px;
    padding-bottom: 96px;
  }

  .page-about .about-coord {
    display: inline-block;
  }

  .page-about .origin-grid {
    grid-template-columns: 1.35fr 0.85fr;
    gap: 56px;
    align-items: start;
  }

  .page-about .origin-aside {
    transform: translateY(-8px);
  }

  .page-about .capability-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  .page-about .stat-expand {
    max-height: 0;
    opacity: 0;
    margin-top: 0;
    overflow: hidden;
  }

  .page-about .stat-card:hover .stat-expand,
  .page-about .stat-card:focus-within .stat-expand {
    max-height: 6em;
    opacity: 1;
    margin-top: 10px;
  }

  .page-about .capability-layout {
    grid-template-columns: 1.25fr 0.75fr;
    gap: 32px;
  }

  .page-about .capability-figure {
    transform: translateY(8px);
  }

  .page-about .capability-note {
    font-size: 1.05rem;
  }

  .page-about .milestone-layout {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
  }

  .page-about .milestone-figure {
    position: sticky;
    top: calc(var(--header-height) + 32px);
    margin-top: 12px;
    transform: rotate(1.5deg);
    transition: transform var(--transition-2);
  }

  .page-about .milestone-figure:hover {
    transform: rotate(0deg) translateY(-4px);
  }

  .page-about .service-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .page-about .service-figure {
    margin-left: auto;
    margin-right: auto;
  }

  .page-about .about-cta .cta-links {
    gap: 16px;
  }
}