.page-about {
  --about-gold-grad: linear-gradient(135deg, #F5C242, #E67E22);
  --about-ink: #2B1E16;
  --about-deep: #081229;
  --about-glow-cyan: rgba(0, 229, 255, 0.12);
  overflow-x: clip;
}

.page-about .breadcrumb {
  padding-top: calc(var(--header-top) + var(--header-height) + 18px);
  padding-bottom: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.64);
}
.page-about .breadcrumb a {
  color: rgba(255, 255, 255, 0.64);
  text-decoration: none;
  transition: color 0.3s ease;
}
.page-about .breadcrumb a:hover {
  color: var(--gold-start);
}
.page-about .breadcrumb-separator {
  margin: 0 10px;
  color: rgba(255, 255, 255, 0.36);
}

.page-about .about-hero {
  position: relative;
  padding: clamp(40px, 7vw, 96px) 0 88px;
  color: var(--cream-surface);
  background: radial-gradient(ellipse at 82% 12%, rgba(245, 194, 66, 0.12), transparent 52%), radial-gradient(ellipse at 8% 88%, rgba(0, 229, 255, 0.08), transparent 46%);
}
.page-about .about-hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 44px;
}
.page-about .about-hero-kicker {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.page-about .about-hero-coord {
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.52);
}
.page-about .about-hero h1 {
  margin: 26px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(32px, 6.2vw, 56px);
  line-height: 1.18;
  color: var(--cream-surface);
}
.page-about .about-h1-sub {
  display: inline-block;
  margin-top: 10px;
  background: var(--about-gold-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-size: clamp(18px, 3vw, 30px);
  font-weight: 600;
}
.page-about .about-hero-lead {
  margin: 22px 0 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.76);
}
.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}
.page-about .about-hero-index {
  margin-top: 36px;
  padding-top: 18px;
  border-top: 1px solid var(--light-border);
}
.page-about .about-hero-index .legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 0;
  padding: 0;
}
.page-about .about-hero-index .legend-item {
  list-style: none;
  margin: 0;
}
.page-about .about-hero-index .legend-item a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-size: 14px;
  letter-spacing: 0.04em;
  transition: color 0.3s ease, text-shadow 0.3s ease;
}
.page-about .about-hero-index .legend-item a:hover {
  color: var(--gold-start);
  text-shadow: 0 0 18px rgba(245, 194, 66, 0.35);
}
.page-about .about-hero-visual {
  position: relative;
}
.page-about .about-hero-frame {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: var(--shadow-float);
  background: var(--about-deep);
}
.page-about .about-hero-frame img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}
.page-about .about-hero-badge {
  position: absolute;
  right: 22px;
  bottom: 22px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 22px;
  border-radius: var(--radius-xl);
  background: rgba(11, 27, 61, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(10px);
}
.page-about .about-hero-badge-num {
  font-family: var(--font-display);
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  background: var(--about-gold-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.page-about .about-hero-badge-label {
  font-size: 13px;
  line-height: 1.45;
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: 0.12em;
}
.page-about .about-hero-corner {
  position: absolute;
  writing-mode: vertical-rl;
  font-size: 12px;
  letter-spacing: 0.3em;
  color: rgba(255, 255, 255, 0.56);
}
.page-about .about-hero-corner--tl {
  top: 18px;
  left: 18px;
}
.page-about .about-hero-corner--br {
  bottom: 18px;
  right: 18px;
  transform: rotate(180deg);
}
.page-about .about-hero-mountains {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  z-index: 1;
  pointer-events: none;
}
.page-about .about-hero-mountains svg {
  display: block;
  width: 100%;
  height: 110px;
}

.page-about .about-origin {
  padding: 48px 0 72px;
}
.page-about .about-origin-grid {
  display: grid;
  gap: 44px;
  align-items: center;
}
.page-about .about-origin-kicker {
  display: flex;
  align-items: flex-start;
  gap: 18px;
}
.page-about .about-origin-vertical {
  writing-mode: vertical-rl;
  font-size: 12px;
  letter-spacing: 0.34em;
  color: rgba(255, 255, 255, 0.42);
  border-left: 1px solid var(--light-border);
  padding-left: 12px;
  height: 88px;
}
.page-about .about-origin h2 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.2;
  color: var(--cream-surface);
}
.page-about .about-origin-lead {
  margin: 18px 0 0;
  font-size: 17px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.88);
  font-weight: 500;
}
.page-about .about-origin-body {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.7);
}
.page-about .about-origin-links {
  display: grid;
  gap: 10px;
  margin-top: 28px;
}
.page-about .about-origin-links .index-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--gold-start);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  border-bottom: 1px solid rgba(245, 194, 66, 0.3);
  padding-bottom: 6px;
  width: fit-content;
  transition: border-color 0.3s ease, letter-spacing 0.3s ease;
}
.page-about .about-origin-links .index-link:hover {
  border-color: var(--gold-start);
  letter-spacing: 0.03em;
}
.page-about .about-origin-svgwrap {
  border-radius: var(--radius-xl);
  border: 1px solid var(--light-border);
  background: linear-gradient(180deg, rgba(8, 18, 41, 0.72), rgba(11, 27, 61, 0.45));
  padding: 24px;
  box-shadow: var(--shadow-float);
}
.page-about .about-origin-svg {
  display: block;
  width: 100%;
  height: auto;
}
.page-about .about-origin-caption {
  margin: 16px 0 0;
  font-size: 13px;
  text-align: center;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.5);
}

.page-about .about-journey {
  background: var(--cream-surface);
  color: var(--about-ink);
  border-radius: 56px 56px 0 0;
  padding: 64px 0 76px;
}
.page-about .about-journey .section-header {
  text-align: left;
}
.page-about .about-journey .section-header .section-kicker {
  color: #B4651A;
}
.page-about .about-journey .section-header h2 {
  color: var(--about-ink);
}
.page-about .about-journey .section-header .section-subtitle {
  color: rgba(43, 30, 22, 0.68);
}
.page-about .about-journey-top {
  display: grid;
  gap: 24px;
}
.page-about .about-journey-art {
  max-width: 260px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 2px solid rgba(245, 194, 66, 0.72);
  box-shadow: var(--shadow-float);
  position: relative;
}
.page-about .about-journey-art::after {
  content: "TIME INDEX";
  position: absolute;
  right: 12px;
  top: 12px;
  writing-mode: vertical-rl;
  font-size: 11px;
  letter-spacing: 0.28em;
  color: rgba(255, 255, 255, 0.72);
  background: rgba(11, 27, 61, 0.58);
  padding: 8px 6px;
  border-radius: 8px;
}
.page-about .about-journey-art img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  max-height: 300px;
}
.page-about .about-journey .tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 40px 0 32px;
}
.page-about .about-journey .tab-button {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(43, 30, 22, 0.18);
  background: transparent;
  color: var(--about-ink);
  cursor: pointer;
  transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}
.page-about .about-journey .tab-button:hover {
  border-color: rgba(43, 30, 22, 0.42);
}
.page-about .about-journey .tab-button.is-active {
  background: var(--about-gold-grad);
  color: var(--about-ink);
  border-color: transparent;
  box-shadow: 0 6px 18px rgba(230, 126, 34, 0.28);
}
.page-about .about-journey .tab-panel {
  display: none;
}
.page-about .about-journey .tab-panel.is-active {
  display: block;
}
.page-about .about-journey .timeline {
  position: relative;
  margin: 8px 0 0;
  padding-left: 24px;
  border-left: 2px solid rgba(43, 30, 22, 0.12);
}
.page-about .about-journey .timeline-item {
  position: relative;
  padding: 0 0 40px 30px;
}
.page-about .about-journey .timeline-item::before {
  content: "";
  position: absolute;
  left: -32px;
  top: 6px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--about-gold-grad);
  box-shadow: 0 0 0 5px rgba(245, 194, 66, 0.18);
}
.page-about .about-journey .timeline-date {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.2;
  color: #B4651A;
}
.page-about .about-journey .timeline-content {
  margin-top: 8px;
}
.page-about .about-journey .timeline-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 1.35;
  color: var(--about-ink);
}
.page-about .about-journey .timeline-content p {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(43, 30, 22, 0.7);
  max-width: 60ch;
}

.page-about .about-tech {
  padding: 80px 0 72px;
  background: radial-gradient(ellipse at 90% 10%, rgba(0, 229, 255, 0.08), transparent 44%), var(--primary-bg);
}
.page-about .about-tech-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
}
.page-about .about-tech .section-header {
  text-align: left;
  margin-bottom: 0;
}
.page-about .about-tech .section-kicker {
  color: var(--cyan-accent);
}
.page-about .about-tech .section-header h2 {
  color: var(--cream-surface);
}
.page-about .about-tech .section-header .section-subtitle {
  color: rgba(255, 255, 255, 0.62);
}
.page-about .about-tech-header .btn-outline {
  flex-shrink: 0;
}
.page-about .about-tech-grid {
  margin-top: 40px;
  gap: 20px;
}
.page-about .about-tech .card--dark {
  border: 1px solid var(--light-border);
  background: rgba(255, 255, 255, 0.045);
  backdrop-filter: blur(8px);
  border-radius: 24px;
  padding: 28px 26px;
  transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}
.page-about .about-tech .card--dark:hover {
  transform: translateY(-4px);
  border-color: rgba(245, 194, 66, 0.42);
  background: rgba(255, 255, 255, 0.07);
}
.page-about .about-tech-icon {
  width: 52px;
  height: 52px;
  margin-bottom: 18px;
}
.page-about .about-tech-icon svg {
  width: 100%;
  height: 100%;
  display: block;
}
.page-about .about-tech-card-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 21px;
  color: var(--cream-surface);
}
.page-about .about-tech-card-text {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.68;
  color: rgba(255, 255, 255, 0.68);
}
.page-about .about-tech-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 36px;
}
.page-about .about-metric {
  text-align: center;
  padding: 22px 14px;
  border-radius: 18px;
  border: 1px solid var(--light-border);
  background: rgba(245, 194, 66, 0.06);
}
.page-about .about-metric-num {
  display: block;
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 700;
  line-height: 1.1;
  background: var(--about-gold-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.page-about .about-metric-label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.56);
}

.page-about .about-credential {
  padding: 76px 0 84px;
  background: linear-gradient(180deg, var(--primary-bg) 0%, var(--about-deep) 100%);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.page-about .about-credential-inner {
  display: grid;
  gap: 44px;
  align-items: center;
}
.page-about .about-credential .section-kicker {
  color: var(--gold-start);
}
.page-about .about-credential h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(26px, 4vw, 40px);
  color: var(--cream-surface);
}
.page-about .about-credential-lead {
  margin: 18px 0 0;
  font-size: 17px;
  font-weight: 500;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.88);
}
.page-about .about-credential-body {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.68);
}
.page-about .about-credential-list {
  display: grid;
  gap: 14px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}
.page-about .about-credential-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--light-border);
  border-radius: var(--radius-md);
  transition: border-color 0.3s ease, background 0.3s ease;
}
.page-about .about-credential-item:hover {
  border-color: rgba(245, 194, 66, 0.4);
  background: rgba(255, 255, 255, 0.08);
}
.page-about .about-credential-item svg {
  flex: 0 0 40px;
  width: 40px;
  height: 40px;
}
.page-about .about-credential-item strong {
  display: block;
  font-size: 16px;
  color: var(--cream-surface);
}
.page-about .about-credential-item span {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.56);
}
.page-about .about-credential-visual {
  position: relative;
}
.page-about .about-credential-visual img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--light-border);
  box-shadow: var(--shadow-float);
  object-fit: cover;
}
.page-about .about-credential-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 18px;
}
.page-about .about-credential-stat {
  text-align: center;
  padding: 18px 12px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--light-border);
}
.page-about .about-credential-stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 26px;
  line-height: 1.1;
  background: var(--about-gold-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.page-about .about-credential-stat span {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.56);
}

.page-about .about-global {
  padding: 76px 0 96px;
  background: radial-gradient(ellipse at 16% 82%, rgba(155, 89, 182, 0.16), transparent 52%), radial-gradient(ellipse at 88% 14%, rgba(0, 229, 255, 0.1), transparent 46%), var(--primary-bg);
}
.page-about .about-global .section-header {
  text-align: center;
}
.page-about .about-global .section-kicker {
  color: var(--purple-highlight);
}
.page-about .about-global .section-header h2 {
  color: var(--cream-surface);
}
.page-about .about-global .section-header .section-subtitle {
  color: rgba(255, 255, 255, 0.64);
}
.page-about .about-global-grid {
  display: grid;
  gap: 40px;
  margin-top: 40px;
}
.page-about .about-global-narrative p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.75);
}
.page-about .about-global-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0;
}
.page-about .about-global-narrative .btn-surface {
  margin-top: 6px;
}
.page-about .about-global-map {
  border: 1px solid var(--light-border);
  border-radius: 28px;
  background: rgba(8, 18, 41, 0.62);
  padding: 24px 24px 28px;
  box-shadow: var(--shadow-float);
}
.page-about .about-global-svg {
  display: block;
  width: 100%;
  height: auto;
}
.page-about .about-global-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 24px;
}
.page-about .about-global-stat {
  text-align: center;
  padding: 16px 8px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--light-border);
}
.page-about .about-global-stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 26px;
  line-height: 1.1;
  color: var(--gold-start);
}
.page-about .about-global-stat span {
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.54);
}

@media (min-width: 640px) {
  .page-about .about-tech-metrics {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-about .about-credential-stats {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-about .about-hero-mountains svg {
    height: 160px;
  }
}

@media (min-width: 768px) {
  .page-about .about-hero-inner {
    grid-template-columns: 1.04fr 0.96fr;
    gap: 48px;
    align-items: center;
  }
  .page-about .about-origin-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 56px;
  }
  .page-about .about-journey-top {
    grid-template-columns: 1fr 220px;
    align-items: end;
  }
  .page-about .about-journey-art img {
    max-height: 280px;
  }
  .page-about .about-credential-inner {
    grid-template-columns: 1fr 0.9fr;
    gap: 56px;
  }
  .page-about .about-global-grid {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 48px;
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .page-about .about-origin {
    padding-top: 64px;
  }
  .page-about .about-origin-svgwrap {
    padding: 36px;
  }
  .page-about .about-journey {
    padding: 88px 0 96px;
    border-radius: 72px 72px 0 0;
  }
  .page-about .about-journey .timeline-item {
    padding-bottom: 46px;
  }
  .page-about .about-tech-grid {
    gap: 24px;
  }
  .page-about .about-tech-metrics {
    gap: 18px;
    margin-top: 44px;
  }
  .page-about .about-credential {
    padding: 88px 0 96px;
  }
  .page-about .about-credential-stats {
    gap: 16px;
    margin-top: 24px;
  }
  .page-about .about-global {
    padding: 88px 0 112px;
  }
}