.page-about {
  --about-deep: #0d2744;
  --about-track: rgba(168, 178, 209, 0.28);
  --about-glow: rgba(255, 107, 53, 0.16);
  background: var(--color-bg);
  color: var(--color-text);
  overflow-x: hidden;
}

.page-about .about-hero {
  position: relative;
  min-height: 540px;
  display: flex;
  align-items: flex-end;
  padding: 56px 0 64px;
  overflow: hidden;
  background: var(--color-bg);
}
.page-about .about-hero__img,
.page-about .about-hero__img img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.page-about .about-hero__img img {
  object-fit: cover;
  object-position: center 32%;
  transform: scale(1.02);
}
.page-about .about-hero__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 25, 51, 0.28) 0%, rgba(10, 25, 51, 0.72) 62%, var(--color-bg) 100%);
}
.page-about .about-hero__content {
  position: relative;
  z-index: 1;
}
.page-about .about-hero .breadcrumb {
  margin-bottom: 36px;
}
.page-about .about-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 4.6vw, 3.1rem);
  line-height: 1.14;
  max-width: 14em;
  margin: 12px 0 18px;
  letter-spacing: 0.02em;
}
.page-about .about-hero__lead {
  color: var(--color-text-2);
  font-size: 1.05rem;
  line-height: 1.75;
  max-width: 42em;
  margin-bottom: 28px;
}
.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-mission {
  padding: 72px 0 64px;
}
.page-about .about-mission__grid {
  display: grid;
  gap: 40px;
}
.page-about .about-mission__copy h2,
.page-about .about-section-head h2,
.page-about .about-closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  line-height: 1.2;
  margin: 10px 0 16px;
}
.page-about .about-mission__copy p {
  color: var(--color-text-2);
  line-height: 1.8;
  margin-bottom: 16px;
}
.page-about .about-mission__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.page-about .about-stat {
  background: var(--color-bg-card);
  border-radius: var(--radius);
  padding: 20px 18px;
  border: 1px solid var(--color-line);
  border-left: 4px solid var(--color-accent);
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.page-about .about-stat:hover {
  transform: translateY(-3px);
  border-color: var(--color-accent);
  box-shadow: var(--shadow);
}
.page-about .about-stat__value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1.1;
}
.page-about .about-stat__label {
  color: var(--color-text-2);
  font-size: 0.86rem;
  line-height: 1.45;
}

.page-about .about-milestones {
  padding: 56px 0 72px;
  background:
    linear-gradient(135deg, var(--color-bg-card) 0%, var(--color-bg) 58%),
    var(--color-bg);
}
.page-about .about-section-head {
  max-width: 46em;
}
.page-about .about-section-head > p:not(.section-kicker) {
  color: var(--color-text-2);
  line-height: 1.75;
}
.page-about .page-about__timeline {
  position: relative;
  padding-left: 44px;
  margin-top: 40px;
}
.page-about .page-about__timeline::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 16px;
  bottom: 24px;
  width: 3px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--color-accent) 0%, var(--color-accent-2) 55%, transparent 100%);
  opacity: 0.6;
}
.page-about .about-milestone {
  position: relative;
  margin-bottom: 32px;
}
.page-about .about-milestone:last-child {
  margin-bottom: 0;
}
.page-about .about-milestone__dot {
  position: absolute;
  left: -33px;
  top: 22px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 3px solid var(--color-accent);
  box-shadow: 0 0 0 5px var(--about-glow);
}
.page-about .about-milestone__card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 20px 22px;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.page-about .about-milestone__card:hover {
  transform: translateY(-3px);
  border-color: var(--color-accent);
  box-shadow: var(--shadow);
}
.page-about .about-milestone__year {
  display: inline-block;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}
.page-about .about-milestone__card h3 {
  font-family: var(--font-display);
  font-size: 1.18rem;
  line-height: 1.3;
  margin-bottom: 8px;
}
.page-about .about-milestone__summary {
  color: var(--color-text);
  line-height: 1.65;
  margin-bottom: 6px;
}
.page-about .about-milestone__detail {
  color: var(--color-text-2);
  font-size: 0.92rem;
  line-height: 1.7;
  padding-top: 10px;
  border-top: 1px dashed var(--color-line);
}

.page-about .about-capability {
  position: relative;
  padding: 80px 0 72px;
  background: linear-gradient(160deg, var(--color-bg-card) 0%, var(--color-bg) 62%);
}
.page-about .about-capability::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(-45deg, rgba(255, 255, 255, 0.018) 0px, rgba(255, 255, 255, 0.018) 12px, transparent 12px, transparent 28px);
  pointer-events: none;
}
.page-about .about-capability__grid {
  display: grid;
  gap: 32px;
  margin-top: 36px;
}
.page-about .about-capability__figures {
  display: grid;
  gap: 16px;
}
.page-about .about-fig {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 20px 22px;
  background: var(--color-bg);
  border-radius: var(--radius);
  border: 1px solid var(--color-line);
  border-top: 3px solid var(--color-accent);
}
.page-about .about-fig__value {
  font-size: clamp(1.55rem, 3vw, 2.05rem);
  font-weight: 700;
  color: var(--color-accent-2);
  white-space: nowrap;
}
.page-about .about-fig__value small {
  font-size: 0.68em;
  color: var(--color-text-2);
  margin-left: 2px;
}
.page-about .about-fig__label {
  color: var(--color-text-2);
  font-size: 0.92rem;
  line-height: 1.45;
}
.page-about .about-capability__chart {
  background: var(--color-bg-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 14px;
  margin: 0;
}
.page-about .about-capability__chart img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  display: block;
}
.page-about .about-capability__chart figcaption,
.page-about .about-ecosystem__img figcaption {
  color: var(--color-text-2);
  font-size: 0.86rem;
  padding: 12px 6px 4px;
  line-height: 1.5;
  text-align: center;
}
.page-about .about-capability__note {
  margin-top: 32px;
  padding: 20px 22px;
  background: rgba(255, 107, 53, 0.08);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--color-text-2);
  line-height: 1.8;
}

.page-about .about-cert {
  padding: 72px 0;
}
.page-about .about-cert__grid {
  display: grid;
  gap: 16px;
  margin-top: 36px;
}
.page-about .about-cert__item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 18px 22px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.page-about .about-cert__item[open] {
  border-color: var(--color-accent);
  box-shadow: var(--shadow);
}
.page-about .about-cert__summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 1.02rem;
  line-height: 1.4;
}
.page-about .about-cert__summary::-webkit-details-marker {
  display: none;
}
.page-about .about-cert__tag {
  background: var(--color-bg-raised);
  color: var(--color-accent-2);
  border: 1px solid rgba(255, 215, 0, 0.35);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 4px 8px;
  border-radius: 4px;
  white-space: nowrap;
}
.page-about .about-cert__meta {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--color-text-2);
  transition: transform 0.2s ease, color 0.2s ease;
}
.page-about .about-cert__item[open] .about-cert__meta {
  transform: rotate(45deg);
  color: var(--color-accent);
}
.page-about .about-cert__detail {
  margin-top: 14px;
  border-top: 1px dashed var(--color-line);
  padding-top: 14px;
  color: var(--color-text-2);
  line-height: 1.75;
}

.page-about .about-ecosystem {
  padding: 72px 0 56px;
  background:
    linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-card) 120%);
}
.page-about .about-ecosystem__grid {
  display: grid;
  gap: 32px;
  margin-top: 36px;
}
.page-about .about-ecosystem__list {
  display: grid;
  gap: 16px;
}
.page-about .about-eco-item {
  display: flex;
  gap: 16px;
  padding: 18px 20px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.page-about .about-eco-item:hover {
  transform: translateX(4px);
  border-color: var(--color-accent-2);
}
.page-about .about-eco-index {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1.2;
}
.page-about .about-eco-item h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  line-height: 1.3;
  margin-bottom: 6px;
}
.page-about .about-eco-item p {
  color: var(--color-text-2);
  font-size: 0.92rem;
  line-height: 1.65;
}
.page-about .about-ecosystem__img {
  background: var(--color-bg-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 14px;
  margin: 0;
}
.page-about .about-ecosystem__img img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  display: block;
}

.page-about .about-closing {
  position: relative;
  padding: 72px 0 110px;
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--about-deep) 100%);
  text-align: center;
  margin-top: 24px;
}
.page-about .about-closing__mountain {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 140px;
  display: block;
  pointer-events: none;
}
.page-about .about-closing__body {
  position: relative;
  z-index: 1;
}
.page-about .about-closing .section-kicker {
  margin-bottom: 10px;
}
.page-about .about-closing h2 {
  font-size: clamp(1.5rem, 3.4vw, 2.4rem);
  margin-bottom: 16px;
}
.page-about .about-closing p:not(.section-kicker) {
  color: var(--color-text-2);
  max-width: 38em;
  margin: 0 auto 28px;
  line-height: 1.8;
}
.page-about .about-closing__actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 768px) {
  .page-about .about-hero {
    min-height: 640px;
    padding: 72px 0 88px;
  }
  .page-about .about-mission__grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 64px;
    align-items: start;
  }
  .page-about .about-mission__stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .page-about .page-about__timeline {
    padding-left: 56px;
  }
  .page-about .page-about__timeline::before {
    left: 13px;
  }
  .page-about .about-milestone__dot {
    left: -34px;
    width: 20px;
    height: 20px;
  }
  .page-about .about-milestone__card {
    padding: 24px 28px;
  }
  .page-about .about-capability__grid {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 40px;
    align-items: center;
  }
  .page-about .about-cert__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .page-about .about-ecosystem__grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
  }
  .page-about .about-closing {
    padding: 88px 0 130px;
  }
  .page-about .about-closing__mountain {
    height: 180px;
  }
}