.page-about {
  background: var(--warm);
  color: var(--ink);
  font-family: var(--font-body);
}

/* ---------- HERO ---------- */
.page-about .ab-hero {
  position: relative;
  background:
    radial-gradient(120% 90% at 85% 0%, rgba(15, 107, 90, 0.62) 0%, rgba(11, 27, 43, 0) 62%),
    var(--night);
  color: var(--warm);
  padding: clamp(20px, 4vw, 34px) 0 clamp(44px, 6vw, 84px);
  overflow: hidden;
}
.page-about .ab-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(247, 243, 234, 0.07) 1px, transparent 1px),
    linear-gradient(180deg, rgba(247, 243, 234, 0.05) 1px, transparent 1px);
  background-size: 25% 100%, 100% 88px;
  pointer-events: none;
}
.page-about .ab-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--green) 0 34%, var(--copper) 34% 67%, var(--cyan) 67% 100%);
}
.page-about .ab-hero .container {
  position: relative;
  z-index: 1;
}
.page-about .ab-hero .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(26px, 5vw, 52px);
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(247, 243, 234, 0.55);
}
.page-about .ab-hero .breadcrumb a {
  color: var(--copper-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.18s var(--ease);
}
.page-about .ab-hero .breadcrumb a:hover,
.page-about .ab-hero .breadcrumb a:focus-visible {
  border-bottom-color: var(--copper-soft);
}

.page-about .ab-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
}
.page-about .ab-eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--copper);
}
.page-about .ab-eyebrow--light {
  color: var(--copper-soft);
}
.page-about .ab-h1 {
  margin: 0 0 clamp(16px, 3vw, 26px);
  font-size: clamp(34px, 8.2vw, 76px);
  line-height: 1.03;
  font-weight: 900;
  letter-spacing: -0.035em;
  color: var(--warm);
}
.page-about .ab-h1 em {
  font-style: normal;
  color: var(--cyan);
}
.page-about .ab-lede {
  max-width: 660px;
  margin: 0 0 clamp(22px, 3.4vw, 32px);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: rgba(247, 243, 234, 0.82);
}
.page-about .ab-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .ab-hero-side {
  border-top: 1px solid rgba(247, 243, 234, 0.18);
  padding-top: 18px;
}
.page-about .ab-side-label {
  margin: 0 0 10px;
  font-family: var(--font-index);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(247, 243, 234, 0.5);
}
.page-about .ab-facts {
  margin: 0;
}
.page-about .ab-fact {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(247, 243, 234, 0.12);
}
.page-about .ab-fact:last-child {
  border-bottom: 0;
}
.page-about .ab-fact dt {
  margin: 0;
  font-size: 13px;
  color: rgba(247, 243, 234, 0.65);
}
.page-about .ab-fact dd {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 4px;
}
.page-about .ab-num {
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 800;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--copper-soft);
}
.page-about .ab-fact dd i {
  font-style: normal;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: rgba(247, 243, 234, 0.55);
}
.page-about .ab-side-note {
  margin: 14px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: rgba(247, 243, 234, 0.5);
}

/* ---------- SHARED BLOCK PIECES ---------- */
.page-about .ab-sec {
  padding: clamp(48px, 7vw, 92px) 0;
}
.page-about .ab-sec-head {
  margin-bottom: clamp(24px, 4vw, 44px);
}
.page-about .ab-h2 {
  margin: 0 0 clamp(14px, 2vw, 20px);
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.page-about .ab-h2--light {
  color: var(--warm);
}
.page-about .ab-prose {
  max-width: 660px;
}
.page-about .ab-prose p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-soft);
}
.page-about .ab-prose p:last-child {
  margin-bottom: 0;
}
.page-about .ab-p--light {
  margin: 0 0 22px;
  max-width: 620px;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(247, 243, 234, 0.78);
}
.page-about .ab-figure {
  margin: 0 0 clamp(26px, 4vw, 44px);
  overflow: hidden;
}
.page-about .ab-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.page-about .ab-figure figcaption {
  margin-top: 10px;
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

/* ---------- ORIGIN ---------- */
.page-about .ab-origin {
  background: var(--warm);
}
.page-about .ab-origin-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 40px);
}

/* ---------- VALUE ---------- */
.page-about .ab-value {
  background: var(--paper);
}
.page-about .ab-value-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
}
.page-about .ab-value-list {
  display: block;
}
.page-about .ab-value-item {
  border-top: var(--line);
  padding: 18px 0;
}
.page-about .ab-value-item:last-child {
  border-bottom: var(--line);
}
.page-about .ab-value-item summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 2px 0;
  list-style: none;
  cursor: pointer;
}
.page-about .ab-value-item summary::-webkit-details-marker {
  display: none;
}
.page-about .ab-value-num {
  flex: none;
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--copper);
}
.page-about .ab-value-title {
  flex: 1 1 auto;
  font-size: clamp(16px, 2vw, 20px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
  transition: color 0.18s var(--ease);
}
.page-about .ab-value-item summary:hover .ab-value-title,
.page-about .ab-value-item summary:focus-visible .ab-value-title {
  color: var(--green);
}
.page-about .ab-value-mark {
  flex: none;
  width: 11px;
  height: 11px;
  margin-bottom: 2px;
  border-right: 1px solid var(--green);
  border-bottom: 1px solid var(--green);
  transform: rotate(45deg);
  transition: transform 0.2s var(--ease);
}
.page-about .ab-value-item[open] .ab-value-mark {
  transform: rotate(225deg);
}
.page-about .ab-value-body {
  padding: 12px 0 2px 26px;
  max-width: 620px;
}
.page-about .ab-value-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
}

/* ---------- TIMELINE ---------- */
.page-about .ab-timeline {
  background: var(--warm);
}
.page-about .ab-tl-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
}
.page-about .ab-tl-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}
.page-about .ab-tl-list a {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 10px 0 10px 14px;
  border-left: 1px solid var(--mist);
  text-decoration: none;
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-soft);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}
.page-about .ab-tl-list a:hover,
.page-about .ab-tl-list a:focus-visible {
  color: var(--green);
  border-left-color: var(--copper);
  background: rgba(15, 107, 90, 0.06);
}
.page-about .ab-tl-list a[aria-current="true"] {
  color: var(--green);
  border-left-color: var(--copper);
  background: rgba(15, 107, 90, 0.08);
}
.page-about .ab-tl-idx {
  flex: none;
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--copper);
}
.page-about .ab-tl-body {
  position: relative;
  padding-left: 26px;
}
.page-about .ab-tl-body::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 14px;
  width: 1px;
  background: linear-gradient(180deg, var(--copper) 0%, var(--mist) 78%, transparent 100%);
}
.page-about .ab-tl-item {
  position: relative;
  padding-bottom: clamp(26px, 3.4vw, 40px);
  scroll-margin-top: 100px;
}
.page-about .ab-tl-item:last-child {
  padding-bottom: 0;
}
.page-about .ab-tl-item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 7px;
  width: 11px;
  height: 11px;
  background: var(--copper);
  box-shadow: 0 0 0 3px var(--warm);
}
.page-about .ab-tl-year {
  margin: 0 0 4px;
  font-family: var(--font-index);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1;
  color: var(--green);
}
.page-about .ab-tl-title {
  margin: 0 0 8px;
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.page-about .ab-tl-text {
  margin: 0;
  max-width: 620px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
}

/* ---------- TEAM ---------- */
.page-about .ab-team {
  background: var(--green-deep);
  color: var(--warm);
}
.page-about .ab-team-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
}
.page-about .ab-team-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}
.page-about .ab-team-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(247, 243, 234, 0.8);
}
.page-about .ab-team-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 7px;
  height: 7px;
  background: var(--cyan);
}
.page-about .ab-team-list strong {
  color: var(--copper-soft);
  font-weight: 700;
  letter-spacing: 0.01em;
}
.page-about .ab-team-side {
  display: grid;
  gap: 1px;
  background: rgba(247, 243, 234, 0.16);
  border: 1px solid rgba(247, 243, 234, 0.16);
}
.page-about .ab-team-card {
  background: var(--green-deep);
  padding: clamp(18px, 2.6vw, 26px);
}
.page-about .ab-team-card-label {
  margin: 0 0 8px;
  font-family: var(--font-index);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(247, 243, 234, 0.5);
}
.page-about .ab-team-card-value {
  display: flex;
  align-items: baseline;
  gap: 5px;
  margin: 0 0 6px;
  font-size: clamp(26px, 3.4vw, 34px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
}
.page-about .ab-team-card-value .ab-num {
  font-size: inherit;
  color: inherit;
  font-weight: inherit;
}
.page-about .ab-team-card-value i {
  font-style: normal;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: rgba(247, 243, 234, 0.7);
}
.page-about .ab-team-card-desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(247, 243, 234, 0.66);
}

/* ---------- CREDENTIALS ---------- */
.page-about .ab-cert-sec {
  background: var(--warm);
}
.page-about .ab-cert-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 40px);
  margin-bottom: clamp(26px, 4vw, 44px);
}
.page-about .ab-figure--cert {
  margin: 0;
}
.page-about .ab-cert-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}
.page-about .ab-cert {
  position: relative;
  background: var(--paper);
  border: var(--line);
  padding: clamp(20px, 2.8vw, 26px);
  transition: transform 0.18s var(--ease), border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}
.page-about .ab-cert:hover {
  transform: translateY(-2px);
  border-color: var(--copper);
  box-shadow: 0 14px 30px -26px rgba(11, 27, 43, 0.6);
}
.page-about .ab-cert-num {
  display: block;
  margin-bottom: 14px;
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--copper);
}
.page-about .ab-cert-title {
  margin: 0 0 4px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.page-about .ab-cert-en {
  margin: 0 0 12px;
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--green);
}
.page-about .ab-cert-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- RESULTS ---------- */
.page-about .ab-results {
  background: var(--night);
  color: var(--warm);
}
.page-about .ab-sec-head--split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}
.page-about .ab-sec-head--split .ab-p--light {
  margin: 0;
}
.page-about .ab-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(247, 243, 234, 0.16);
  border: 1px solid rgba(247, 243, 234, 0.16);
}
.page-about .ab-stat {
  background: var(--night);
  padding: clamp(20px, 2.8vw, 28px) clamp(16px, 2.2vw, 24px);
}
.page-about .ab-stat-value {
  display: flex;
  align-items: baseline;
  gap: 3px;
  margin: 0 0 10px;
  font-size: clamp(28px, 4.2vw, 44px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--copper-soft);
}
.page-about .ab-stat-value span {
  font-family: var(--font-index);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--cyan);
}
.page-about .ab-stat-label {
  margin: 0;
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: rgba(247, 243, 234, 0.62);
}

/* ---------- CTA ---------- */
.page-about .ab-cta {
  background: var(--paper);
  border-top: var(--line);
  padding: clamp(40px, 6vw, 76px) 0;
}
.page-about .ab-cta-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
}
.page-about .ab-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- RESPONSIVE ---------- */
@media (min-width: 880px) {
  .page-about .ab-origin-grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: clamp(28px, 4vw, 64px);
    align-items: start;
  }
  .page-about .ab-cert-head {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
    gap: clamp(28px, 4vw, 56px);
  }
  .page-about .ab-cert-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .ab-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .ab-sec-head--split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    align-items: end;
    gap: clamp(28px, 4vw, 56px);
  }
  .page-about .ab-cta-inner {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    align-items: center;
    gap: clamp(28px, 4vw, 56px);
  }
  .page-about .ab-team-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    gap: clamp(32px, 5vw, 64px);
    align-items: start;
  }
}

@media (min-width: 940px) {
  .page-about .ab-hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(250px, 300px);
    align-items: end;
  }
  .page-about .ab-hero-side {
    border-top: 0;
    border-left: 1px solid rgba(247, 243, 234, 0.18);
    padding-top: 0;
    padding-left: clamp(20px, 2.4vw, 28px);
  }
  .page-about .ab-value-grid {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: start;
  }
  .page-about .ab-value-lead {
    position: sticky;
    top: 96px;
  }
}

@media (min-width: 900px) {
  .page-about .ab-tl-grid {
    grid-template-columns: 230px minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: start;
  }
  .page-about .ab-tl-index {
    position: sticky;
    top: 96px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-cert,
  .page-about .ab-value-mark,
  .page-about .ab-value-title,
  .page-about .ab-tl-list a {
    transition: none;
  }
  .page-about .ab-cert:hover {
    transform: none;
  }
}