.page-about {
  --about-bg: linear-gradient(135deg, #0B1D3A 0%, #182A4A 100%);
  --about-deco-glow: rgba(57, 255, 20, 0.12);
  --about-orange-glow: rgba(255, 77, 46, 0.15);
  background: var(--about-bg);
  color: var(--c-moon);
  position: relative;
  overflow-x: hidden;
}

.page-about img {
  max-width: 100%;
  height: auto;
}

.page-about .container {
  width: min(100% - 48px, var(--wrap-max));
  margin-inline: auto;
}

.page-about .section-heading {
  margin-bottom: 12px;
}

.page-about .page-about__crumb {
  padding-top: 28px;
}

.page-about .page-about__crumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--c-mist);
}

.page-about .page-about__crumb li + li::before {
  content: "/";
  margin-right: 10px;
  color: rgba(176, 196, 222, 0.45);
}

.page-about .page-about__crumb a {
  color: var(--c-green);
  text-decoration: none;
  transition: color var(--transition);
}

.page-about .page-about__crumb a:hover {
  color: var(--c-moon);
}

.page-about .page-about__crumb [aria-current="page"] {
  color: var(--c-mist);
}

.page-about .page-about__hero {
  padding: clamp(56px, 9vw, 110px) 0 clamp(40px, 6vw, 64px);
}

.page-about .page-about__hero-inner {
  display: grid;
  gap: 44px;
  align-items: center;
}

.page-about .page-about__hero-badge {
  margin-bottom: 20px;
}

.page-about .page-about__hero-title {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(40px, 7.5vw, 78px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
  color: var(--c-moon);
}

.page-about .page-about__hero-site {
  display: inline-block;
  white-space: nowrap;
}

.page-about .page-about__hero-accent {
  display: block;
  color: var(--c-green);
  text-shadow: 0 0 24px rgba(57, 255, 20, 0.25);
}

.page-about .page-about__hero-sub {
  display: block;
  font-size: 0.6em;
  color: var(--c-mist);
  margin-top: 14px;
}

.page-about .page-about__hero-lead {
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.75;
  color: var(--c-mist);
  max-width: 54ch;
  margin: 0 0 32px;
}

.page-about .page-about__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page-about .page-about__hero-board {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.page-about .page-about__board-card--primary {
  grid-column: 1 / -1;
}

.page-about .page-about__board-card {
  background: linear-gradient(145deg, rgba(24, 42, 74, 0.92), rgba(11, 29, 58, 0.9));
  border: 1px solid rgba(57, 255, 20, 0.18);
  border-radius: var(--radius-card);
  padding: clamp(20px, 2.5vw, 28px) 14px;
  text-align: center;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.page-about .page-about__board-card:hover {
  transform: translateY(-4px);
  border-color: var(--c-green);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.28), 0 0 0 1px rgba(57, 255, 20, 0.12);
}

.page-about .page-about__board-card--primary {
  border-color: rgba(57, 255, 20, 0.65);
  box-shadow: 0 0 28px rgba(57, 255, 20, 0.13);
}

.page-about .page-about__board-card--accent {
  border-color: rgba(255, 77, 46, 0.32);
}

.page-about .page-about__board-card--accent:hover {
  border-color: var(--c-orange);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.28), 0 0 0 1px rgba(255, 77, 46, 0.14);
}

.page-about .page-about__board-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(26px, 3vw, 38px);
  color: var(--c-green);
  line-height: 1.2;
  margin-bottom: 6px;
}

.page-about .page-about__board-card--accent .page-about__board-num {
  color: var(--c-orange);
}

.page-about .page-about__board-label {
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-mist);
}

.page-about .page-about__section-lead {
  font-size: clamp(16px, 1.8vw, 20px);
  color: var(--c-mist);
  max-width: 60ch;
  margin: 12px 0 40px;
}

.page-about .page-about__timeline {
  position: relative;
  padding-left: 32px;
  margin-bottom: 56px;
}

.page-about .page-about__timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 5px;
  width: 2px;
  background: linear-gradient(180deg, var(--c-green) 0%, var(--c-orange) 100%);
  opacity: 0.7;
}

.page-about .page-about__timeline-track {
  display: grid;
  gap: 28px;
}

.page-about .page-about__timeline-node {
  position: relative;
}

.page-about .page-about__tl-dot {
  position: absolute;
  left: 0;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--c-green);
  box-shadow: 0 0 0 4px rgba(57, 255, 20, 0.14), 0 0 16px rgba(57, 255, 20, 0.55);
  transition: box-shadow var(--transition), transform var(--transition);
}

.page-about .page-about__timeline-node:hover .page-about__tl-dot {
  transform: scale(1.25);
  box-shadow: 0 0 0 6px rgba(57, 255, 20, 0.18), 0 0 22px rgba(57, 255, 20, 0.75);
}

.page-about .page-about__tl-card {
  background: var(--c-card);
  border: 1px solid rgba(176, 196, 222, 0.14);
  border-radius: var(--radius-card);
  padding: 22px 20px;
  margin-top: 28px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.page-about .page-about__timeline-node:hover .page-about__tl-card {
  transform: translateY(-5px);
  border-color: rgba(57, 255, 20, 0.4);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.26);
}

.page-about .page-about__tl-year {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 14px;
  color: var(--c-green);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.page-about .page-about__tl-card h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  margin: 0 0 8px;
  color: var(--c-moon);
}

.page-about .page-about__tl-card p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-mist);
  margin: 0;
}

.page-about .page-about__history {
  display: grid;
  gap: 28px;
  align-items: center;
}

.page-about .page-about__history-figure {
  margin: 0;
  position: relative;
}

.page-about .page-about__history-img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-card);
  filter: sepia(0.35) saturate(1.1) contrast(1.05);
  transition: filter var(--transition), transform var(--transition);
}

.page-about .page-about__history-figure:hover .page-about__history-img {
  filter: sepia(0) saturate(1.4) contrast(1.02);
  transform: scale(1.01);
}

.page-about .page-about__history-caption {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--c-mist);
  padding: 10px 4px 0;
}

.page-about .page-about__history-code {
  font-family: var(--font-mono);
  color: var(--c-orange);
}

.page-about .page-about__history-note {
  background: linear-gradient(135deg, rgba(255, 77, 46, 0.06), rgba(24, 42, 74, 0.6));
  border: 1px solid rgba(255, 77, 46, 0.2);
  border-radius: var(--radius-card);
  padding: 28px 24px;
}

.page-about .page-about__history-note p {
  margin: 18px 0 22px;
  line-height: 1.8;
  color: var(--c-moon);
}

.page-about .page-about__data-section {
  position: relative;
  overflow: hidden;
}

.page-about .page-about__data-section::before {
  content: "";
  position: absolute;
  right: -120px;
  top: 60px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, var(--about-deco-glow), transparent 70%);
  pointer-events: none;
}

.page-about .page-about__data-wrap {
  display: grid;
  gap: 40px;
  align-items: center;
}

.page-about .page-about__data-figure {
  margin: 0;
  position: relative;
}

.page-about .page-about__data-img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-card);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.3);
  transition: transform var(--transition), box-shadow var(--transition);
}

.page-about .page-about__data-figure:hover .page-about__data-img {
  transform: translateY(-4px);
  box-shadow: 0 26px 52px rgba(0, 0, 0, 0.36);
}

.page-about .page-about__data-content {
  position: relative;
}

.page-about .page-about__data-lead {
  color: var(--c-mist);
  font-size: 17px;
  line-height: 1.7;
  margin: 12px 0 28px;
}

.page-about .page-about__data-metrics {
  display: grid;
  gap: 14px;
}

.page-about .page-about__metric {
  background: rgba(24, 42, 74, 0.65);
  border: 1px solid rgba(176, 196, 222, 0.12);
  border-radius: var(--radius-card);
  padding: 18px;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}

.page-about .page-about__metric:hover {
  border-color: rgba(57, 255, 20, 0.3);
  transform: translateY(-3px);
}

.page-about .page-about__metric--main {
  background: linear-gradient(135deg, rgba(57, 255, 20, 0.08), rgba(24, 42, 74, 0.55));
  border-color: rgba(57, 255, 20, 0.28);
  text-align: center;
  padding: 28px 20px;
}

.page-about .page-about__metric--main:hover {
  border-color: var(--c-green);
}

.page-about .page-about__metric-group {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.page-about .page-about__metric-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(24px, 3vw, 34px);
  color: var(--c-green);
  line-height: 1.2;
}

.page-about .page-about__metric--main .page-about__metric-num {
  font-size: clamp(40px, 6vw, 58px);
  color: var(--c-moon);
  text-shadow: 0 0 18px rgba(57, 255, 20, 0.35);
}

.page-about .page-about__metric-label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-mist);
  margin-top: 6px;
}

.page-about .page-about__data-note {
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid rgba(176, 196, 222, 0.12);
  color: var(--c-mist);
  font-size: 14px;
  line-height: 1.8;
}

.page-about .page-about__optimize-section {
  position: relative;
  background: linear-gradient(180deg, transparent, rgba(255, 77, 46, 0.03), transparent);
}

.page-about .page-about__optimize-grid {
  display: grid;
  gap: 40px;
  align-items: center;
}

.page-about .page-about__optimize-copy .section-heading {
  margin-bottom: 8px;
}

.page-about .page-about__optimize-lead {
  color: var(--c-orange);
  font-size: 18px;
  margin: 0 0 28px;
}

.page-about .page-about__optimize-list {
  list-style: none;
  padding: 0;
  margin: 0 0 32px;
  display: grid;
  gap: 0;
}

.page-about .page-about__optimize-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(176, 196, 222, 0.12);
  transition: border-color var(--transition);
}

.page-about .page-about__optimize-item:first-child {
  border-top: 1px solid rgba(176, 196, 222, 0.12);
}

.page-about .page-about__optimize-item:hover {
  border-bottom-color: rgba(57, 255, 20, 0.3);
}

.page-about .page-about__optimize-num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 22px;
  color: var(--c-orange);
  line-height: 1.3;
}

.page-about .page-about__optimize-body h3 {
  font-family: var(--font-serif);
  font-size: 18px;
  margin: 0 0 6px;
  color: var(--c-moon);
}

.page-about .page-about__optimize-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-mist);
}

.page-about .page-about__optimize-figure {
  margin: 0;
  position: relative;
}

.page-about .page-about__optimize-img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-card);
  filter: saturate(0.9) contrast(1.05);
  transition: filter var(--transition), transform var(--transition), box-shadow var(--transition);
}

.page-about .page-about__optimize-figure:hover .page-about__optimize-img {
  filter: saturate(1.3);
  transform: translateY(-4px);
  box-shadow: 0 20px 44px rgba(0, 0, 0, 0.32);
}

.page-about .page-about__optimize-caption {
  font-size: 13px;
  color: var(--c-mist);
  padding-top: 10px;
  font-family: var(--font-mono);
}

.page-about .page-about__archive-section {
  position: relative;
}

.page-about .page-about__archive-lead {
  color: var(--c-mist);
  font-size: 17px;
  margin: 12px 0 36px;
  max-width: 60ch;
}

.page-about .page-about__archive-grid {
  display: grid;
  gap: 20px;
}

.page-about .page-about__archive-card {
  position: relative;
  background: linear-gradient(145deg, rgba(24, 42, 74, 0.8), rgba(11, 29, 58, 0.7));
  border: 1px solid rgba(176, 196, 222, 0.12);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.page-about .page-about__archive-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--c-green), var(--c-orange));
  opacity: 0;
  transition: opacity var(--transition);
}

.page-about .page-about__archive-card:hover {
  transform: translateY(-6px);
  border-color: rgba(57, 255, 20, 0.32);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.28);
}

.page-about .page-about__archive-card:hover::before {
  opacity: 1;
}

.page-about .page-about__archive-era {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-green);
  background: rgba(57, 255, 20, 0.08);
  border-radius: 4px 12px 4px 12px;
  padding: 5px 12px;
  margin-bottom: 16px;
}

.page-about .page-about__archive-card h3 {
  font-family: var(--font-serif);
  font-size: 21px;
  margin: 0 0 10px;
  color: var(--c-moon);
}

.page-about .page-about__archive-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-mist);
  margin: 0;
  padding-right: 16px;
}

.page-about .page-about__archive-no {
  position: absolute;
  bottom: 14px;
  right: 16px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: rgba(176, 196, 222, 0.3);
  letter-spacing: 0.12em;
  transition: color var(--transition), transform var(--transition), text-shadow var(--transition);
}

.page-about .page-about__archive-card:hover .page-about__archive-no {
  color: var(--c-orange);
  transform: scale(1.08);
  text-shadow: 0 0 12px rgba(255, 77, 46, 0.4);
}

.page-about .page-about__archive-cta {
  margin-top: 40px;
  padding: 28px 24px;
  background: linear-gradient(135deg, rgba(255, 77, 46, 0.1), rgba(24, 42, 74, 0.6));
  border: 1px solid rgba(255, 77, 46, 0.22);
  border-radius: var(--radius-card);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.page-about .page-about__archive-cta p {
  margin: 0;
  color: var(--c-moon);
  font-size: 15px;
  line-height: 1.7;
  max-width: 48ch;
}

.page-about .page-about__trust {
  background: rgba(24, 42, 74, 0.5);
  border-top: 1px solid rgba(57, 255, 20, 0.16);
  border-bottom: 1px solid rgba(176, 196, 222, 0.08);
}

.page-about .page-about__trust p {
  margin: 0 auto;
  color: var(--c-mist);
  font-size: 14px;
  text-align: center;
  line-height: 1.8;
  max-width: 72ch;
}

@media (min-width: 768px) {
  .page-about .page-about__timeline-track {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .page-about .page-about__history {
    grid-template-columns: 6fr 5fr;
    gap: 32px;
  }

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

  .page-about .page-about__hero-board {
    grid-template-columns: repeat(2, 1fr);
    max-width: 420px;
  }

  .page-about .page-about__board-card--primary {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1024px) {
  .page-about .page-about__hero-inner {
    grid-template-columns: 7fr 5fr;
    gap: 56px;
  }

  .page-about .page-about__hero-board {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    max-width: 360px;
    margin-left: auto;
  }

  .page-about .page-about__board-card--primary {
    grid-column: auto;
    transform: translateX(28px) rotate(0.4deg) scale(1.02);
  }

  .page-about .page-about__board-card:nth-child(2) {
    transform: translateX(-12px);
  }

  .page-about .page-about__board-card--accent {
    transform: translateX(8px) rotate(-0.4deg);
  }

  .page-about .page-about__board-card:hover {
    transform: translateX(0) translateY(-4px) rotate(0deg);
  }

  .page-about .page-about__timeline {
    padding-left: 0;
  }

  .page-about .page-about__timeline::before {
    right: 0;
    left: 0;
    width: auto;
    height: 2px;
    top: 6px;
    bottom: auto;
    background: linear-gradient(90deg, var(--c-green), var(--c-orange));
    opacity: 0.6;
  }

  .page-about .page-about__timeline-track {
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
  }

  .page-about .page-about__tl-dot {
    left: 50%;
    top: 2px;
    transform: translateX(-50%);
  }

  .page-about .page-about__timeline-node:hover .page-about__tl-dot {
    transform: translateX(-50%) scale(1.3);
  }

  .page-about .page-about__tl-card {
    margin-top: 32px;
    padding: 24px;
  }

  .page-about .page-about__history {
    grid-template-columns: 5fr 6fr;
    gap: 48px;
  }

  .page-about .page-about__data-wrap {
    grid-template-columns: 6fr 5fr;
    gap: 56px;
  }

  .page-about .page-about__optimize-grid {
    grid-template-columns: 7fr 5fr;
    gap: 56px;
  }

  .page-about .page-about__optimize-figure {
    order: 2;
  }
}