.page-about {
  --about-gold-soft: rgba(242, 169, 0, 0.12);
  --about-orange-glow: rgba(255, 107, 53, 0.16);
}

.page-about .about-hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 330px;
  background: var(--color-primary-dark);
  overflow: hidden;
}

.page-about .about-hero__media {
  position: absolute;
  inset: 0;
}

.page-about .about-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.72;
}

.page-about .about-hero__shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 61, 84, 0.15) 0%, rgba(15, 61, 84, 0.82) 100%);
}

.page-about .about-hero__pattern {
  position: absolute;
  right: -1rem;
  bottom: 1rem;
  width: 320px;
  max-width: 42vw;
  height: auto;
  opacity: 0.55;
  pointer-events: none;
}

.page-about .about-hero__content {
  position: relative;
  z-index: 2;
  padding-top: var(--space-lg);
  padding-bottom: var(--space-lg);
  color: var(--color-surface);
}

.page-about .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  font-size: 0.8rem;
  line-height: 1.4;
  margin: 0 0 var(--space-md);
}

.page-about .breadcrumb a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  transition: color 0.2s;
}

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

.page-about .breadcrumb__item[aria-current="page"] {
  color: rgba(255, 255, 255, 0.62);
}

.page-about .breadcrumb__sep {
  color: rgba(255, 255, 255, 0.45);
}

.page-about .about-hero__title {
  font-family: var(--font-headline);
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-weight: 800;
  line-height: 1.2;
  margin: 0 0 0.75rem;
  color: var(--color-surface);
}

.page-about .about-hero__lead {
  font-family: var(--font-body);
  font-size: clamp(0.95rem, 1.6vw, 1.1rem);
  line-height: 1.75;
  max-width: 38em;
  margin: 0;
  color: rgba(255, 255, 255, 0.92);
}

.page-about .about-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.page-about .about-toc__inner {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: var(--space-md);
}

.page-about .about-toc__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin: 0 0 var(--space-sm);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--color-border);
}

.page-about .about-toc__inner nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.page-about .about-toc__link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.4rem 0.75rem;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-surface);
  transition: border-color 0.2s, color 0.2s, background-color 0.2s;
}

.page-about .about-toc__link:hover {
  border-color: var(--color-accent-orange);
  color: var(--color-accent-orange);
  background: rgba(255, 107, 53, 0.05);
}

.page-about .about-toc__cta {
  display: inline-block;
  margin-top: var(--space-sm);
  font-size: 0.85rem;
}

.page-about .about-body {
  min-width: 0;
}

.page-about .about-chapter {
  scroll-margin-top: 108px;
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-border);
}

.page-about .about-chapter:first-of-type {
  padding-top: 0;
}

.page-about .about-chapter:last-of-type {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .about-chapter__head {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.page-about .about-chapter__num {
  font-family: var(--font-mono);
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 0.9;
  color: transparent;
  -webkit-text-stroke: 2px var(--color-accent-gold);
  -webkit-text-fill-color: var(--about-gold-soft);
}

.page-about .about-chapter__title {
  font-family: var(--font-headline);
  font-size: clamp(1.2rem, 2.4vw, 1.7rem);
  font-weight: 800;
  color: var(--color-primary-dark);
  margin: 0;
}

.page-about .about-chapter__body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--color-text);
}

.page-about .about-chapter__body p {
  margin: 0 0 var(--space-md);
}

.page-about .about-principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
  margin: var(--space-md) 0;
  padding: var(--space-md);
  background: var(--color-bg);
  border-radius: var(--radius);
  border-left: 3px solid var(--color-accent-gold);
}

.page-about .about-principles .metric {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.page-about .about-principles .metric__value {
  font-family: var(--font-mono);
  font-size: clamp(1.2rem, 2.4vw, 1.7rem);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.1;
}

.page-about .about-principles .metric__label {
  font-size: 0.76rem;
  color: var(--color-muted);
}

.page-about .about-feature-list {
  list-style: none;
  margin: 0 0 var(--space-md);
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm);
}

.page-about .about-feature-list li {
  position: relative;
  margin: 0;
  padding: var(--space-sm) var(--space-sm) var(--space-sm) 2.3rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--color-text);
}

.page-about .about-feature-list li::before {
  content: "";
  position: absolute;
  left: 1rem;
  top: 1.1rem;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 2px;
  background: var(--color-accent-orange);
}

.page-about .about-data-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
  margin: var(--space-md) 0 0;
}

.page-about .about-data-grid__item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  border-top: 3px solid var(--color-primary);
  padding: var(--space-sm);
}

.page-about .about-data-grid__item--wide {
  grid-column: 1 / -1;
  border-top-color: var(--color-accent-orange);
}

.page-about .about-data-grid__label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.page-about .about-data-grid__num {
  font-family: var(--font-mono);
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0.2rem 0;
  line-height: 1.2;
}

.page-about .about-data-grid__item p:last-child {
  font-size: 0.78rem;
  color: var(--color-muted);
  line-height: 1.5;
  margin: 0;
}

.page-about .about-timeline {
  position: relative;
  margin: 0 0 var(--space-md);
  padding-left: 1.7rem;
  border-left: 2px solid var(--color-border);
}

.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 var(--space-lg) 0;
}

.page-about .about-timeline__item:last-child {
  padding-bottom: 0;
}

.page-about .about-timeline__dot {
  position: absolute;
  left: calc(-1.7rem - 0.45rem);
  top: 0.3rem;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: var(--color-accent-orange);
  box-shadow: 0 0 0 4px var(--about-orange-glow);
}

.page-about .about-timeline__item h3 {
  font-family: var(--font-headline);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--color-primary);
  margin: 0 0 0.4rem;
}

.page-about .about-timeline__item p {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--color-muted);
  margin: 0;
  max-width: 58ch;
}

.page-about .about-growth {
  display: block;
  width: 100%;
  max-width: 800px;
  height: auto;
  margin-top: var(--space-md);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
}

.page-about .about-commitment-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  background: var(--gradient-primary);
  border-radius: var(--radius);
  padding: var(--space-md);
  color: var(--color-surface);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.page-about .about-commitment-card__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 400px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.page-about .about-commitment-card__content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-sm);
}

.page-about .about-commitment-card__lead {
  font-family: var(--font-headline);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.7;
  margin: 0;
  color: var(--color-surface);
}

.page-about .about-commitment-card p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.85);
}

.page-about .about-commitment-card .tag-list {
  margin-top: var(--space-xs);
}

.page-about .about-commitment-card .tag {
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.26);
  color: var(--color-surface);
}

.page-about .about-commitment-card .tag--gold {
  border-color: var(--color-accent-gold);
  color: #fff;
}

.page-about .about-commitment-card .tag--orange {
  border-color: var(--color-accent-orange);
  color: #fff;
}

.page-about .about-commitment-card .btn--outline {
  margin-top: var(--space-xs);
  border-color: rgba(255, 255, 255, 0.75);
  color: var(--color-surface);
}

.page-about .about-commitment-card .btn--outline:hover {
  background: var(--color-accent-orange);
  border-color: var(--color-accent-orange);
  color: #fff;
}

@media (min-width: 768px) {
  .page-about .about-hero {
    min-height: 420px;
  }

  .page-about .about-layout {
    grid-template-columns: 240px minmax(0, 1fr);
    align-items: start;
  }

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

  .page-about .about-feature-list {
    grid-template-columns: 1fr 1fr;
  }

  .page-about .about-commitment-card {
    grid-template-columns: 280px 1fr;
    align-items: center;
    padding: var(--space-lg);
  }
}

@media (min-width: 1200px) {
  .page-about .about-layout {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: var(--space-xl);
  }

  .page-about .about-commitment-card {
    grid-template-columns: 320px 1fr;
  }
}