.page-about {
  --page-pad-x: 1.25rem;
  --about-gold-soft: rgba(255, 215, 0, 0.14);
  --about-gold-line: rgba(255, 215, 0, 0.32);
  --about-panel: #22180f;
  --about-panel-hover: #2f2113;
  position: relative;
  overflow-x: hidden;
  padding: 1.5rem var(--page-pad-x) 4rem;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.7;
}

.page-about .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 2.25rem;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
}

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

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

.page-about .breadcrumb-divider {
  color: var(--color-gold);
}

.page-about .breadcrumb__current {
  color: var(--color-text);
}

.page-about .about-hero {
  position: relative;
  padding-top: 0.5rem;
}

.page-about .about-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1rem;
  color: var(--color-gold);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.22em;
}

.page-about .about-hero__eyebrow::before {
  content: "";
  display: block;
  width: 28px;
  height: 1px;
  background: var(--color-gold);
}

.page-about .page-title {
  margin: 0.4rem 0 0.85rem;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(2.1rem, 6vw, 4.3rem);
  line-height: 1.14;
  letter-spacing: 0.02em;
  color: var(--color-text);
}

.page-about .page-title__brand {
  color: var(--color-gold);
  font-weight: 800;
}

.page-about .page-subtitle {
  max-width: 46rem;
  margin: 0;
  color: var(--color-text-muted);
  font-size: clamp(0.95rem, 1.6vw, 1.1rem);
  line-height: 1.8;
}

.page-about .about-hero__rule {
  height: 3px;
  margin-top: 2.5rem;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-crimson), transparent);
}

.page-about .about-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 2.25rem;
  padding-bottom: 2.25rem;
  border-bottom: 1px solid var(--color-border);
}

.page-about .about-toc__link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 0.9rem;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  transition: background var(--transition-base), border-color var(--transition-base), color var(--transition-base);
}

.page-about .about-toc__link:hover,
.page-about .about-toc__link:focus {
  color: var(--color-gold);
  border-color: var(--about-gold-line);
  background: var(--about-gold-soft);
}

.page-about .about-toc__num {
  color: var(--color-gold);
  font-size: 0.72rem;
  font-weight: 700;
}

.page-about .about-intro,
.page-about .about-milestones,
.page-about .about-data,
.page-about .about-vision {
  margin-top: clamp(4rem, 8vw, 6.5rem);
}

.page-about .about-intro {
  display: grid;
  gap: 1.75rem;
}

.page-about .about-intro__aside {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.page-about .about-intro__num,
.page-about .about-milestones__num,
.page-about .about-data__num,
.page-about .about-vision__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.6rem;
  height: 2.6rem;
  flex-shrink: 0;
  background: var(--color-bg-alt);
  border: 1px solid var(--about-gold-line);
  color: var(--color-gold);
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 700;
}

.page-about .about-intro__topic,
.page-about .about-milestones__topic,
.page-about .about-data__topic,
.page-about .about-vision__topic {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.86rem;
  letter-spacing: 0.12em;
}

.page-about .about-intro__next {
  margin-left: auto;
  color: var(--color-gold);
  text-decoration: none;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  transition: opacity var(--transition-base);
}

.page-about .about-intro__next:hover {
  opacity: 0.7;
}

.page-about .about-intro__main h2,
.page-about .about-milestones__intro h2,
.page-about .about-data__head h2,
.page-about .about-vision__inner h2 {
  margin: 0.2rem 0 1rem;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  line-height: 1.3;
  color: var(--color-text);
}

.page-about .about-intro__lead {
  margin: 0 0 1.2rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-gold);
}

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

.page-about .about-facts {
  display: grid;
  gap: 1px;
  margin: 2.25rem 0 2rem;
  background: var(--about-gold-line);
  border: 1px solid var(--about-gold-line);
}

.page-about .about-facts__row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.4rem 1.25rem;
  padding: 1rem 1.25rem;
  background: var(--about-panel);
}

.page-about .about-facts__row dt {
  color: var(--color-text-muted);
  font-size: 0.84rem;
  letter-spacing: 0.06em;
}

.page-about .about-facts__row dd {
  margin: 0;
  color: var(--color-gold);
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  text-align: right;
}

.page-about .about-facts__row span {
  grid-column: 1 / -1;
  color: var(--color-text-muted);
  font-size: 0.78rem;
  line-height: 1.6;
}

.page-about .about-intro__media,
.page-about .about-milestones__figure,
.page-about .about-data__figure {
  position: relative;
  margin: 0;
}

.page-about .about-intro__media img,
.page-about .about-milestones__figure img,
.page-about .about-data__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--about-gold-line);
  background: var(--color-bg-alt);
}

.page-about .about-intro__media figcaption,
.page-about .about-milestones__figure figcaption,
.page-about .about-data__figure figcaption {
  padding-top: 0.8rem;
  color: var(--color-text-muted);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
}

.page-about .about-milestones {
  position: relative;
  padding: 2.5rem 1.25rem 3rem;
  background:
    radial-gradient(circle at 85% 12%, rgba(255, 215, 0, 0.12), transparent 34%),
    linear-gradient(155deg, rgba(139, 0, 0, 0.5), rgba(26, 26, 26, 0.96) 62%, rgba(21, 0, 0, 1));
  border: 1px solid rgba(139, 0, 0, 0.5);
}

.page-about .about-milestones__aside {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 1.5rem;
}

.page-about .about-milestones__intro {
  max-width: 50rem;
}

.page-about .about-milestones__intro > p {
  margin: 0;
  color: var(--color-text);
  opacity: 0.78;
}

.page-about .about-timeline {
  display: flex;
  gap: 1rem;
  margin-top: 2.25rem;
  padding: 0.25rem 0.25rem 1.5rem;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
  scrollbar-color: var(--color-gold) var(--color-bg-alt);
}

.page-about .about-timeline::-webkit-scrollbar {
  height: 5px;
}

.page-about .about-timeline::-webkit-scrollbar-track {
  background: var(--color-bg-alt);
}

.page-about .about-timeline::-webkit-scrollbar-thumb {
  background: var(--color-gold);
  border-radius: 4px;
}

.page-about .about-timeline__item-shell {
  position: relative;
  flex-shrink: 0;
  flex-basis: 280px;
  padding: 1px;
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.55), rgba(139, 0, 0, 0.35));
  scroll-snap-align: start;
}

.page-about .about-timeline__dot {
  position: absolute;
  top: -5px;
  left: 1.35rem;
  z-index: 2;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(21, 0, 0, 0.6), 0 0 14px rgba(255, 215, 0, 0.65);
}

.page-about .about-timeline__item {
  position: relative;
  height: 100%;
  padding: 1.4rem 1.35rem 1.6rem;
  background: var(--color-bg-alt);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
  transition: background var(--transition-base), transform var(--transition-base);
}

.page-about .about-timeline__item:hover {
  background: var(--about-panel-hover);
  transform: translateY(-3px);
}

.page-about .about-timeline__phase {
  display: inline-block;
  margin-bottom: 1.1rem;
  color: var(--color-gold);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.page-about .about-timeline__item h3 {
  margin: 0 0 0.8rem;
  font-family: var(--font-serif);
  font-size: 1.22rem;
  line-height: 1.35;
  color: var(--color-gold);
}

.page-about .about-timeline__item p {
  margin: 0 0 1.2rem;
  color: var(--color-text);
  font-size: 0.86rem;
  line-height: 1.7;
  opacity: 0.86;
}

.page-about .about-timeline__hint {
  margin: 0.4rem 0 0;
  color: var(--color-text-muted);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  text-align: center;
}

.page-about .about-milestones__figure {
  margin-top: 2.25rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--about-gold-line);
}

.page-about .about-milestones__figure img,
.page-about .about-data__figure img {
  border: 0;
}

.page-about .about-data__head {
  max-width: 44rem;
}

.page-about .about-data__head .about-data__num {
  margin-bottom: 1.25rem;
}

.page-about .about-data__topic {
  margin: 0.65rem 0 1.25rem;
}

.page-about .about-data__lead {
  margin: 0;
  color: var(--color-text-muted);
}

.page-about .about-data__grid {
  display: grid;
  gap: 1px;
  margin-top: 2.5rem;
  background: var(--about-gold-line);
  border: 1px solid var(--about-gold-line);
}

.page-about .about-data__item {
  position: relative;
  padding: 1.6rem 1.5rem 1.5rem;
  background: var(--color-bg);
  transition: background var(--transition-base);
}

.page-about .about-data__item:hover {
  background: var(--about-panel);
}

.page-about .about-data__item-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  margin-bottom: 1.1rem;
  background: var(--color-crimson);
  color: var(--color-text);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.page-about .about-data__item h3 {
  margin: 0 0 0.7rem;
  font-family: var(--font-serif);
  font-size: 1.12rem;
  line-height: 1.4;
  color: var(--color-gold);
}

.page-about .about-data__item p {
  margin: 0;
  color: var(--color-text);
  font-size: 0.86rem;
  line-height: 1.75;
  opacity: 0.82;
}

.page-about .about-data__figure {
  margin-top: 2.25rem;
  padding-left: 0.9rem;
  border-left: 3px solid var(--color-crimson);
}

.page-about .about-vision {
  padding: 2.75rem 1.5rem 3.25rem;
  background:
    linear-gradient(135deg, rgba(255, 215, 0, 0.1), rgba(139, 0, 0, 0.28) 55%, rgba(21, 0, 0, 0.92));
  border: 1px solid var(--about-gold-line);
}

.page-about .about-vision__inner {
  max-width: 56rem;
}

.page-about .about-vision__num {
  background: rgba(21, 0, 0, 0.6);
}

.page-about .about-vision__topic {
  display: inline-block;
  margin: 1rem 0 0.5rem;
}

.page-about .about-vision__inner h2 {
  margin-top: 0.25rem;
}

.page-about .about-vision__text {
  margin: 0 0 1.5rem;
  color: var(--color-text);
  opacity: 0.9;
}

.page-about .about-vision__quote {
  margin: 0 0 1.75rem;
  padding: 0.9rem 1.1rem;
  background: rgba(0, 0, 0, 0.28);
  border-left: 3px solid var(--color-gold);
  color: var(--color-gold-light);
  font-family: var(--font-serif);
  font-size: 0.95rem;
  line-height: 1.7;
}

.page-about .about-vision__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-about .about-ornament {
  display: none;
}

@media (min-width: 560px) {
  .page-about {
    --page-pad-x: 2rem;
  }

  .page-about .about-timeline__item-shell {
    flex-basis: 300px;
  }

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

@media (min-width: 768px) {
  .page-about {
    --page-pad-x: clamp(2rem, 6vw, 5rem);
    padding: 2.5rem var(--page-pad-x) 5.5rem;
  }

  .page-about .about-hero__rule {
    margin-top: 3.25rem;
  }

  .page-about .about-intro {
    grid-template-columns: 110px minmax(0, 1fr);
    gap: clamp(2rem, 5vw, 4.5rem);
  }

  .page-about .about-intro__aside {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.1rem;
    padding-top: 0.3rem;
  }

  .page-about .about-intro__next {
    margin-left: 0;
    margin-top: auto;
  }

  .page-about .about-milestones {
    padding: 3.5rem clamp(2rem, 5vw, 4rem) 4rem;
  }

  .page-about .about-milestones__aside {
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 2.25rem;
  }

  .page-about .about-vision {
    padding: 4rem clamp(2.5rem, 6vw, 4.5rem) 4.25rem;
  }

  .page-about .about-vision__actions {
    gap: 1rem;
  }
}

@media (min-width: 1024px) {
  .page-about .about-milestones {
    display: grid;
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 0 clamp(2rem, 5vw, 4rem);
  }

  .page-about .about-milestones__aside {
    grid-column: 1;
    grid-row: 1 / 3;
    margin-bottom: 0;
  }

  .page-about .about-milestones__intro {
    grid-column: 2;
  }

  .page-about .about-timeline {
    grid-column: 2;
  }

  .page-about .about-timeline__hint,
  .page-about .about-milestones__figure {
    grid-column: 2;
  }

  .page-about .about-data {
    display: grid;
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 0 clamp(2rem, 5vw, 4rem);
  }

  .page-about .about-data__head .about-data__num {
    grid-column: 1;
    grid-row: 1;
  }

  .page-about .about-data__head .about-data__topic {
    grid-column: 1;
    grid-row: 2;
  }

  .page-about .about-data__head h2 {
    grid-column: 2;
    grid-row: 1;
  }

  .page-about .about-data__head .about-data__lead {
    grid-column: 2;
    grid-row: 2;
    max-width: 44rem;
  }

  .page-about .about-data__grid {
    grid-column: 1 / -1;
  }

  .page-about .about-data__figure {
    grid-column: 2;
    margin-top: 2.5rem;
  }
}

@media (min-width: 1280px) {
  .page-about .about-timeline__item-shell {
    flex-basis: 320px;
  }

  .page-about .about-ornament {
    display: block;
    position: fixed;
    right: clamp(2rem, calc((100vw - 1120px) / 2), 12rem);
    bottom: 16rem;
    width: 64px;
    height: 64px;
    opacity: 0.55;
    pointer-events: none;
    z-index: 3;
  }
}