.page-about {
  --ab-line: rgba(23, 212, 230, .24);
  --ab-line-soft: rgba(140, 242, 247, .14);
  --ab-card: rgba(244, 248, 251, .05);
  --ab-body: rgba(244, 248, 251, .76);
  background: var(--ink);
  color: var(--mist);
  font-family: var(--font-body);
}

.page-about h1,
.page-about h2,
.page-about h3 {
  font-family: var(--font-heading);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.2;
  margin: 0;
}

.page-about p {
  margin: 0;
}

.page-about .eyebrow {
  color: var(--cyan);
  margin-bottom: 10px;
}

/* ---------- Hero ---------- */
.page-about .ab-hero {
  position: relative;
  overflow: hidden;
  padding: 26px 0 54px;
  background:
    radial-gradient(120% 90% at 92% -10%, rgba(23, 212, 230, .18), transparent 60%),
    linear-gradient(158deg, #071C33 0%, #0B2A4A 56%, #071C33 100%);
}

.page-about .ab-hero::before {
  content: "";
  position: absolute;
  left: 34%;
  right: -18%;
  bottom: -46%;
  height: 420px;
  background: linear-gradient(140deg, rgba(23, 212, 230, .16), rgba(255, 138, 61, .12));
  clip-path: polygon(0 46%, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-about .ab-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--ab-line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--ab-line-soft) 1px, transparent 1px);
  background-size: 88px 88px;
  opacity: .35;
  pointer-events: none;
}

.page-about .ab-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 30px;
}

.page-about .ab-crumb {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 20px;
}

.page-about .ab-crumb a {
  color: var(--cyan-soft);
  text-decoration: none;
}

.page-about .ab-crumb a:hover {
  text-decoration: underline;
}

.page-about .ab-hero h1 {
  font-size: clamp(32px, 6.4vw, 62px);
  margin: 6px 0 18px;
  color: var(--mist);
}

.page-about .ab-lede {
  font-size: clamp(15px, 1.9vw, 18px);
  line-height: 1.85;
  color: var(--ab-body);
  max-width: 60ch;
}

.page-about .ab-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .ab-hero-figure {
  position: relative;
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--ab-line);
  background: rgba(7, 28, 51, .6);
  box-shadow: 0 34px 70px -34px rgba(0, 0, 0, .8);
}

.page-about .ab-hero-figure img,
.page-about .ab-tl-figure img,
.page-about .ab-team-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .ab-hero-cap {
  position: absolute;
  left: 16px;
  bottom: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--cyan-soft);
  background: rgba(7, 28, 51, .78);
  border: 1px solid var(--ab-line);
  border-radius: var(--r-pill);
  padding: 4px 12px;
}

.page-about .ab-hero-stats {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 38px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--ab-line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-about .ab-hero-stats li {
  background: rgba(7, 28, 51, .88);
  padding: 16px 18px;
  display: grid;
  gap: 4px;
}

.page-about .ab-stat-num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.6vw, 36px);
  font-weight: 800;
  line-height: 1;
  color: var(--cyan);
}

.page-about .ab-stat-label {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.5;
}

/* ---------- Section heads ---------- */
.page-about .ab-sec-head {
  max-width: 700px;
  margin-bottom: 30px;
}

.page-about .ab-sec-head h2 {
  font-size: clamp(23px, 3.9vw, 38px);
}

/* ---------- Origin (light) ---------- */
.page-about .ab-origin,
.page-about .ab-team,
.page-about .ab-honor {
  background: var(--mist);
  color: var(--graphite);
}

.page-about .ab-origin .eyebrow,
.page-about .ab-team .eyebrow,
.page-about .ab-honor .eyebrow {
  color: #0E8FA0;
}

.page-about .ab-origin-grid {
  display: grid;
  gap: 26px;
}

.page-about .ab-origin-text p {
  font-size: 16px;
  line-height: 1.85;
  color: #2C3E4F;
  margin-bottom: 16px;
}

.page-about .ab-origin-text p:last-child {
  margin-bottom: 0;
}

.page-about .ab-motto {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--mist);
  border-radius: var(--r-lg);
  padding: 28px 24px;
}

.page-about .ab-motto::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -70px;
  width: 190px;
  height: 190px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(23, 212, 230, .34), transparent 68%);
  pointer-events: none;
}

.page-about .ab-motto-quote {
  position: relative;
  z-index: 1;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(20px, 3vw, 26px);
  line-height: 1.4;
  color: var(--cyan-soft);
  margin-bottom: 14px;
}

.page-about .ab-motto-note {
  position: relative;
  z-index: 1;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}

/* ---------- Timeline ---------- */
.page-about .ab-tl-figure {
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--ab-line);
  margin: 0 0 34px;
}

.page-about .ab-tl-wrap {
  display: grid;
  gap: 26px;
}

.page-about .ab-year-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: none;
}

.page-about .ab-year-nav::-webkit-scrollbar {
  display: none;
}

.page-about .ab-year-nav-title {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--slate);
  margin-right: 4px;
}

.page-about .ab-year-link {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-dim);
  text-decoration: none;
  padding: 7px 14px;
  border-radius: var(--r-pill);
  border: 1px solid var(--ab-line);
  transition: color .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease);
}

.page-about .ab-year-link:hover,
.page-about .ab-year-link[data-active="true"] {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-about .ab-tl-list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  display: grid;
  gap: 18px;
}

.page-about .ab-tl-list::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), rgba(23, 212, 230, .05));
}

.page-about .ab-tl-item {
  position: relative;
  padding-left: 44px;
  scroll-margin-top: 130px;
}

.page-about .ab-tl-item::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 28px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 0 5px rgba(23, 212, 230, .12);
}

.page-about .ab-tl-card {
  background: var(--ab-card);
  border: 1px solid var(--ab-line);
  border-radius: var(--r-md);
  padding: 20px 20px 22px;
  transition: transform .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}

.page-about .ab-tl-card:hover {
  transform: translateY(-3px);
  border-color: rgba(23, 212, 230, .62);
  background: rgba(23, 212, 230, .07);
}

.page-about .ab-year-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(28px, 4.8vw, 44px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--cyan);
  margin-bottom: 12px;
}

.page-about .ab-tl-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.page-about .ab-tl-tags .chip {
  font-size: 11px;
  letter-spacing: .1em;
  padding: 3px 11px;
  border-radius: var(--r-pill);
  color: var(--cyan-soft);
  background: rgba(23, 212, 230, .12);
  border: 1px solid rgba(23, 212, 230, .32);
}

.page-about .ab-tl-card h3 {
  font-size: clamp(17px, 2.3vw, 21px);
  color: var(--mist);
  margin-bottom: 10px;
}

.page-about .ab-tl-card p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ab-body);
}

/* ---------- Team ---------- */
.page-about .ab-team-inner {
  display: grid;
  gap: 28px;
}

.page-about .ab-team-figure {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid rgba(11, 42, 74, .12);
  background: #E6EEF6;
}

.page-about .ab-team-intro {
  font-size: 16px;
  line-height: 1.85;
  color: #2C3E4F;
  margin: 16px 0 4px;
  max-width: 62ch;
}

.page-about .ab-team-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-about .ab-team-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 18px 0;
  border-bottom: 1px dashed rgba(91, 113, 134, .38);
}

.page-about .ab-team-list li:first-child {
  border-top: 1px dashed rgba(91, 113, 134, .38);
}

.page-about .ab-team-num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 34px);
  font-weight: 800;
  line-height: 1;
  color: var(--ink-2);
  min-width: 58px;
}

.page-about .ab-team-list h3 {
  font-size: 17px;
  color: var(--ink);
  margin-bottom: 6px;
}

.page-about .ab-team-list p {
  font-size: 14.5px;
  line-height: 1.8;
  color: #3B4E60;
}

/* ---------- Governance ---------- */
.page-about .ab-gov {
  background: linear-gradient(180deg, #071C33 0%, #0B2A4A 100%);
}

.page-about .ab-gov-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .ab-gov-step {
  position: relative;
  background: rgba(244, 248, 251, .045);
  border: 1px solid var(--ab-line);
  border-radius: var(--r-lg);
  padding: 24px 22px 26px;
}

.page-about .ab-gov-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(36px, 6vw, 52px);
  font-weight: 800;
  line-height: 1;
  color: var(--orange);
  margin-bottom: 14px;
}

.page-about .ab-gov-step h3 {
  font-size: 18px;
  color: var(--mist);
  margin-bottom: 10px;
}

.page-about .ab-gov-step p {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ab-body);
}

.page-about .ab-gov-note {
  margin-top: 22px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
  padding-left: 14px;
  border-left: 2px solid var(--orange);
  max-width: 68ch;
}

/* ---------- Ecosystem ---------- */
.page-about .ab-eco {
  background:
    radial-gradient(70% 120% at 100% 0%, rgba(23, 212, 230, .12), transparent 62%),
    var(--ink);
}

.page-about .ab-eco-grid {
  display: grid;
  gap: 30px;
}

.page-about .ab-eco-text p {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ab-body);
  margin-bottom: 16px;
}

.page-about .ab-eco-link {
  margin-top: 8px;
  display: inline-flex;
}

.page-about .ab-eco-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--ab-line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-about .ab-eco-stats li {
  background: #071C33;
  padding: 20px 18px;
  display: grid;
  gap: 8px;
  align-content: start;
}

.page-about .ab-eco-num {
  font-family: var(--font-mono);
  font-size: clamp(28px, 4.4vw, 40px);
  font-weight: 800;
  line-height: 1;
  color: var(--cyan);
}

.page-about .ab-eco-unit {
  font-size: .5em;
  margin-left: 2px;
}

.page-about .ab-eco-label {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-dim);
}

/* ---------- Honor ---------- */
.page-about .ab-honor-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .ab-honor-card {
  background: #FFFFFF;
  border: 1px solid rgba(11, 42, 74, .12);
  border-radius: var(--r-lg);
  padding: 24px 22px;
  display: grid;
  gap: 10px;
  align-content: start;
  box-shadow: 0 18px 40px -32px rgba(7, 28, 51, .55);
}

.page-about .ab-honor-card .ab-honor-chip {
  justify-self: start;
  font-size: 11px;
  letter-spacing: .12em;
  padding: 3px 11px;
  border-radius: var(--r-pill);
  color: #0E8FA0;
  background: rgba(23, 212, 230, .12);
  border: 1px solid rgba(23, 212, 230, .4);
}

.page-about .ab-honor-card h3 {
  font-size: 17px;
  color: var(--ink);
  line-height: 1.45;
}

.page-about .ab-honor-card p {
  font-size: 14.5px;
  line-height: 1.8;
  color: #3B4E60;
}

/* ---------- Next ---------- */
.page-about .ab-next {
  background:
    radial-gradient(85% 130% at 0% 100%, rgba(255, 138, 61, .16), transparent 62%),
    var(--ink-2);
}

.page-about .ab-next-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .ab-next-list a {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 6px 12px;
  padding: 20px 22px;
  border-radius: var(--r-md);
  border: 1px solid var(--ab-line);
  background: rgba(244, 248, 251, .04);
  color: var(--mist);
  text-decoration: none;
  transition: border-color .2s var(--ease), background .2s var(--ease), transform .2s var(--ease);
}

.page-about .ab-next-list a:hover {
  border-color: rgba(23, 212, 230, .62);
  background: rgba(23, 212, 230, .08);
  transform: translateY(-2px);
}

.page-about .ab-next-name {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 17px;
}

.page-about .ab-next-arrow {
  font-family: var(--font-mono);
  color: var(--orange);
  font-size: 18px;
  line-height: 1;
}

.page-about .ab-next-desc {
  grid-column: 1 / -1;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--text-dim);
}

/* ---------- Responsive ---------- */
@media (min-width: 620px) {
  .page-about .ab-hero-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .ab-honor-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .ab-next-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .ab-hero {
    padding: 34px 0 64px;
  }

  .page-about .ab-hero-inner {
    grid-template-columns: 1.06fr .94fr;
    align-items: center;
    gap: 54px;
  }

  .page-about .ab-origin-grid {
    grid-template-columns: 1.12fr .88fr;
    gap: 46px;
    align-items: start;
  }

  .page-about .ab-team-inner {
    grid-template-columns: .88fr 1.12fr;
    gap: 54px;
    align-items: start;
  }

  .page-about .ab-eco-grid {
    grid-template-columns: 1fr 1.05fr;
    gap: 54px;
    align-items: start;
  }

  .page-about .ab-honor-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-about .ab-tl-wrap {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 46px;
    align-items: start;
  }

  .page-about .ab-year-nav {
    position: sticky;
    top: 118px;
    flex-direction: column;
    align-items: stretch;
    overflow: visible;
    gap: 2px;
    padding-bottom: 0;
  }

  .page-about .ab-year-nav-title {
    margin: 0 0 10px;
    padding-left: 12px;
  }

  .page-about .ab-year-link {
    border: none;
    border-left: 2px solid var(--ab-line);
    border-radius: 0;
    font-size: 20px;
    letter-spacing: -.01em;
    padding: 9px 10px 9px 12px;
    text-align: left;
  }

  .page-about .ab-year-link:hover,
  .page-about .ab-year-link[data-active="true"] {
    background: transparent;
    color: var(--cyan);
    border-left-color: var(--cyan);
  }

  .page-about .ab-tl-list::before {
    left: 21px;
  }

  .page-about .ab-tl-item {
    padding-left: 58px;
  }

  .page-about .ab-tl-item::before {
    left: 15px;
    top: 32px;
  }

  .page-about .ab-gov-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-tl-card,
  .page-about .ab-next-list a,
  .page-about .ab-year-link {
    transition: none;
  }

  .page-about .ab-tl-card:hover,
  .page-about .ab-next-list a:hover {
    transform: none;
  }
}