.page-about {
  --about-night: rgba(27, 54, 93, 0.9);
  --about-line: rgba(139, 125, 107, 0.3);
  --about-soft-line: rgba(244, 241, 232, 0.16);
  --about-faint: rgba(244, 241, 232, 0.68);
  --about-mute-text: rgba(244, 241, 232, 0.86);
  --about-gold-tint: rgba(228, 168, 29, 0.12);
  background: var(--c-rice);
  color: var(--c-plateau);
  overflow-x: hidden;
}

.page-about .breadcrumb {
  margin-bottom: var(--space-4);
}

.page-about .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
}

.page-about .breadcrumb-item {
  color: rgba(244, 241, 232, 0.66);
}

.page-about .breadcrumb-item + .breadcrumb-item::before {
  content: "·";
  margin-right: 0.6rem;
  color: rgba(244, 241, 232, 0.4);
}

.page-about .breadcrumb-link {
  color: rgba(244, 241, 232, 0.66);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

.page-about .breadcrumb-link:hover {
  color: var(--c-yellow);
}

.page-about .section-heading {
  margin-bottom: var(--space-6);
}

.page-about .section-index {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-red);
  margin-bottom: 0.75rem;
}

.page-about .section-heading h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.55rem, 3.6vw, 2.5rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--c-plateau);
  margin-bottom: var(--space-3);
  text-wrap: balance;
}

.page-about .section-heading .section-desc {
  max-width: 38rem;
  color: var(--c-stone);
  font-size: var(--text-base);
  line-height: 1.8;
}

.page-about .about-hero {
  position: relative;
  min-height: clamp(640px, 92vh, 920px);
  display: flex;
  align-items: flex-end;
  background: var(--c-plateau);
  overflow: hidden;
  isolation: isolate;
}

.page-about .hero-image,
.page-about .hero-overlay {
  position: absolute;
  inset: 0;
}

.page-about .hero-image {
  z-index: -2;
}

.page-about .hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.page-about .hero-overlay {
  z-index: -1;
  background: linear-gradient(to bottom, rgba(27, 54, 93, 0.32), rgba(27, 54, 93, 0.55) 30%, rgba(27, 54, 93, 0.88) 72%, var(--c-plateau) 100%);
}

.page-about .hero-inner {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 5rem var(--padding-inline) 3.5rem;
  color: var(--c-snow);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.page-about .hero-kicker {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.12em;
  color: rgba(244, 241, 232, 0.75);
}

.page-about .hero-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.25rem;
  height: 2.25rem;
  padding: 0 0.5rem;
  border: 1px solid rgba(244, 241, 232, 0.35);
  border-radius: var(--radius-pill);
  font-weight: 700;
  color: var(--c-yellow);
}

.page-about .about-hero h1 {
  max-width: 13em;
  margin: 0 0 var(--space-4);
  font-family: var(--font-serif);
  font-size: clamp(1.65rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.24;
  color: #fff;
  text-wrap: balance;
}

.page-about .hero-lead {
  max-width: 42rem;
  margin: 0 0 var(--space-5);
  font-size: var(--text-lg);
  line-height: 1.8;
  color: var(--about-mute-text);
}

.page-about .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

.page-about .hero-jump {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.1rem;
  border: 1px solid rgba(244, 241, 232, 0.38);
  border-radius: var(--radius-pill);
  color: var(--c-snow);
  text-decoration: none;
  font-size: var(--text-sm);
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-about .hero-jump span {
  display: inline-block;
  font-weight: 700;
  transition: transform 0.25s var(--ease);
}

.page-about .hero-jump:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(244, 241, 232, 0.75);
}

.page-about .hero-jump:hover span {
  transform: translateY(3px);
}

.page-about .hero-link {
  padding: 0.7rem 0;
  border-bottom: 1px solid rgba(244, 241, 232, 0.3);
  color: rgba(244, 241, 232, 0.85);
  text-decoration: none;
  font-size: var(--text-sm);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-about .hero-link:hover {
  color: var(--c-yellow);
  border-color: var(--c-yellow);
}

.page-about .hero-strip {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 6px;
  display: flex;
  gap: 2px;
  opacity: 0.85;
}

.page-about .strip-color {
  flex: 1;
}

.page-about .strip-blue {
  background: var(--c-plateau);
}

.page-about .strip-white {
  background: var(--c-snow);
}

.page-about .strip-red {
  background: var(--c-red);
}

.page-about .strip-green {
  background: var(--c-green);
}

.page-about .strip-yellow {
  background: var(--c-yellow);
}

.page-about .about-journey {
  position: relative;
  padding: var(--space-7) 0;
  background: var(--c-rice);
  overflow: hidden;
}

.page-about .about-journey::before {
  content: "";
  position: absolute;
  bottom: 2rem;
  left: -4rem;
  width: 15rem;
  height: 15rem;
  border-radius: 50%;
  background: repeating-radial-gradient(circle at 50% 50%, transparent 0 26px, rgba(90, 110, 82, 0.08) 27px 29px);
  opacity: 0.7;
  pointer-events: none;
}

.page-about .about-journey::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5rem;
  background: linear-gradient(to bottom, rgba(27, 54, 93, 0.06), transparent);
  pointer-events: none;
}

.page-about .journey-inner {
  position: relative;
}

.page-about .journey-timeline {
  position: relative;
  display: block;
}

.page-about .journey-timeline::before {
  content: "";
  position: absolute;
  left: 0.35rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--c-plateau), var(--c-red), var(--c-yellow), var(--c-green), var(--c-clay), var(--c-plateau));
  opacity: 0.4;
}

.page-about .timeline-item {
  position: relative;
  margin: 0 0 var(--space-5) 1.75rem;
  padding: var(--space-4) var(--space-4) var(--space-5);
  background: var(--c-snow);
  border: 1px solid var(--about-line);
  border-radius: var(--radius-lg);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.page-about .timeline-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft);
}

.page-about .timeline-item::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  background: linear-gradient(90deg, var(--c-red), var(--c-yellow), var(--c-green));
  opacity: 0;
  transition: opacity 0.3s var(--ease);
}

.page-about .timeline-item:hover::after {
  opacity: 1;
}

.page-about .timeline-marker {
  position: absolute;
  left: -2.1rem;
  top: 2rem;
  width: 0.9rem;
  height: 0.9rem;
  border-radius: 50%;
  background: var(--c-plateau);
  border: 3px solid var(--c-rice);
  box-shadow: 0 0 0 1px rgba(139, 125, 107, 0.4);
}

.page-about .marker-white {
  background: var(--c-snow);
  border-color: rgba(139, 125, 107, 0.5);
}

.page-about .marker-red {
  background: var(--c-red);
}

.page-about .marker-green {
  background: var(--c-green);
}

.page-about .marker-yellow {
  background: var(--c-yellow);
}

.page-about .timeline-date {
  margin-bottom: 0.4rem;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-red);
}

.page-about .timeline-card h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--c-plateau);
}

.page-about .timeline-card p {
  margin: 0;
  color: var(--c-stone);
  font-size: var(--text-sm);
  line-height: 1.8;
}

.page-about .about-data {
  position: relative;
  padding: var(--space-7) 0;
  background: var(--c-plateau);
  color: var(--c-snow);
  overflow: hidden;
}

.page-about .about-data::before {
  content: "";
  position: absolute;
  top: -5rem;
  right: -5rem;
  width: 18rem;
  height: 18rem;
  border-radius: 50%;
  background: repeating-radial-gradient(circle at 50% 50%, transparent 0 22px, rgba(244, 241, 232, 0.07) 23px 25px);
  opacity: 0.6;
  pointer-events: none;
}

.page-about .data-inner {
  position: relative;
}

.page-about .data-heading .section-index {
  color: var(--c-yellow);
}

.page-about .data-heading h2 {
  color: var(--c-snow);
}

.page-about .data-heading .section-desc {
  color: rgba(244, 241, 232, 0.7);
}

.page-about .data-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  margin: var(--space-6) 0 var(--space-5);
  background: rgba(244, 241, 232, 0.14);
  border: 1px solid rgba(244, 241, 232, 0.14);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-about .data-stat {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.5rem;
  min-height: 8rem;
  padding: var(--space-4) var(--space-3);
  background: rgba(27, 54, 93, 0.96);
  transition: background 0.3s var(--ease);
}

.page-about .data-stat:hover {
  background: rgba(90, 110, 82, 0.45);
}

.page-about .data-stat .stat-value {
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 3vw, 2rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: #fff;
}

.page-about .data-stat .stat-label {
  color: var(--about-faint);
  font-size: var(--text-xs);
  line-height: 1.5;
  letter-spacing: 0.06em;
}

.page-about .data-figure {
  margin: 0;
  display: grid;
  gap: var(--space-3);
}

.page-about .data-figure img {
  width: 100%;
  height: auto;
  max-height: 22rem;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(244, 241, 232, 0.16);
}

.page-about .data-figure figcaption {
  color: rgba(244, 241, 232, 0.62);
  font-size: var(--text-xs);
  line-height: 1.6;
  text-align: right;
  letter-spacing: 0.04em;
}

.page-about .about-today {
  position: relative;
  padding: var(--space-7) 0;
  background: var(--c-plateau);
  color: var(--c-snow);
  overflow: hidden;
}

.page-about .today-img,
.page-about .today-veil {
  position: absolute;
  inset: 0;
}

.page-about .today-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 72% center;
}

.page-about .today-veil {
  background: linear-gradient(200deg, rgba(27, 54, 93, 0.93), rgba(27, 54, 93, 0.82) 42%, rgba(27, 54, 93, 0.55) 100%);
}

.page-about .today-inner {
  position: relative;
}

.page-about .today-heading .section-index {
  color: var(--c-yellow);
}

.page-about .today-heading h2 {
  color: var(--c-snow);
}

.page-about .today-heading .section-desc {
  color: rgba(244, 241, 232, 0.75);
}

.page-about .today-points {
  display: grid;
  gap: var(--space-3);
  margin: var(--space-5) 0;
}

.page-about .today-point {
  padding: var(--space-4);
  background: rgba(244, 241, 232, 0.08);
  border: 1px solid var(--about-soft-line);
  border-radius: var(--radius-md);
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-about .today-point:hover {
  background: rgba(244, 241, 232, 0.13);
  border-color: rgba(244, 241, 232, 0.35);
}

.page-about .today-point h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--c-yellow);
}

.page-about .today-point p {
  margin: 0;
  color: rgba(244, 241, 232, 0.85);
  font-size: var(--text-sm);
  line-height: 1.8;
}

.page-about .today-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.page-about .today-links .btn {
  display: inline-block;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-pill);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 600;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.2s var(--ease);
}

.page-about .today-links .btn:hover {
  transform: translateY(-2px);
}

.page-about .today-links .btn-outline {
  border: 1px solid rgba(244, 241, 232, 0.45);
  color: var(--c-snow);
}

.page-about .today-links .btn-outline:hover {
  background: rgba(244, 241, 232, 0.1);
  border-color: var(--c-yellow);
  color: var(--c-yellow);
}

@media (min-width: 640px) {
  .page-about .data-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .data-stat {
    min-height: 9rem;
  }

  .page-about .data-figure {
    grid-template-columns: minmax(0, 1fr) 34%;
    align-items: center;
  }

  .page-about .data-figure figcaption {
    text-align: left;
  }
}

@media (min-width: 820px) {
  .page-about .journey-timeline {
    display: block;
  }

  .page-about .journey-timeline::before {
    left: 50%;
    transform: translateX(-50%);
  }

  .page-about .timeline-item {
    width: calc(50% - 1.5rem);
    margin: 0 0 var(--space-6);
    padding: var(--space-5);
  }

  .page-about .timeline-item:nth-child(odd) {
    margin-right: auto;
    padding-right: var(--space-6);
  }

  .page-about .timeline-item:nth-child(odd) .timeline-marker {
    left: auto;
    right: -2.05rem;
  }

  .page-about .timeline-item:nth-child(even) {
    margin-left: auto;
    padding-left: var(--space-6);
  }

  .page-about .timeline-item:nth-child(even) .timeline-marker {
    left: -2.05rem;
  }

  .page-about .timeline-marker {
    top: 2.25rem;
  }

  .page-about .today-points {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
  }

  .page-about .today-veil {
    background: linear-gradient(90deg, var(--c-plateau) 12%, rgba(27, 54, 93, 0.86) 52%, rgba(27, 54, 93, 0.4) 100%);
  }

  .page-about .data-figure img {
    max-height: 24rem;
  }
}

@media (min-width: 1100px) {
  .page-about .hero-inner {
    padding-bottom: 4.5rem;
  }

  .page-about .about-journey {
    padding: var(--space-7) 0 var(--space-7);
  }

  .page-about .timeline-item {
    padding: var(--space-5) var(--space-6);
  }
}