.page-about{
  --page-accent: var(--accent-green);
  --page-warm: var(--accent-orange);
  --page-panel: var(--bg-panel);
  --page-rule: var(--bg-line);
  --page-ink: var(--bg-ink);
  --page-light: var(--text-light);
  --page-dim: var(--text-muted);
  --page-glass: var(--glass);
  --page-shadow: var(--shadow-panel);
  --page-clip: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
  color: var(--page-light);
  padding-block-end: 0;
}
.page-about .breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.5rem;
  padding:2.25rem 0 .5rem;
  font-family:var(--font-data);
  font-size:.76rem;
  color:var(--page-dim);
}
.page-about .breadcrumb a{
  color:var(--page-dim);
  text-decoration:underline;
  text-decoration-color:transparent;
  text-underline-offset:3px;
  transition:color .2s var(--ease),text-decoration-color .2s var(--ease);
}
.page-about .breadcrumb a:hover{
  color:var(--page-accent);
  text-decoration-color:var(--page-accent);
}
.page-about .breadcrumb-sep{
  color:var(--page-rule);
}
.page-about .about-intro{
  position:relative;
  overflow:hidden;
  padding:4rem 0 4.5rem;
  border-bottom:1px solid var(--page-rule);
}
.page-about .about-intro::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  width:clamp(120px,28vw,280px);
  height:4px;
  background:linear-gradient(90deg,var(--page-accent),transparent 85%);
}
.page-about .page-intro-label{
  display:inline-flex;
  align-items:center;
  gap:.75rem;
  margin-bottom:1.15rem;
  font-family:var(--font-data);
  font-size:.78rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--page-accent);
}
.page-about .page-intro-label::before{
  content:"";
  width:30px;
  height:2px;
  background:var(--page-accent);
}
.page-about .page-intro-title{
  margin:0;
  max-width:900px;
  font-family:var(--font-display);
  font-size:clamp(2.15rem,6vw,4.4rem);
  font-weight:800;
  line-height:1.14;
  letter-spacing:-.02em;
  color:var(--page-light);
}
.page-about .page-intro-title .title-sub{
  display:block;
  margin-top:.65rem;
  font-family:var(--font-data);
  font-size:clamp(.95rem,2vw,1.35rem);
  font-weight:400;
  letter-spacing:.05em;
  color:var(--page-dim);
}
.page-about .page-intro-lead{
  max-width:720px;
  margin:1.7rem 0 0;
  font-size:1.04rem;
  line-height:1.9;
  opacity:.92;
}
.page-about .intro-note{
  display:flex;
  align-items:flex-start;
  gap:.8rem;
  max-width:720px;
  margin-top:2rem;
  padding:1rem 1.2rem;
  border-left:3px solid var(--page-warm);
  background:var(--page-glass);
}
.page-about .intro-note-tag{
  flex-shrink:0;
  padding-top:.2rem;
  font-family:var(--font-data);
  font-size:.7rem;
  letter-spacing:.12em;
  color:var(--page-warm);
}
.page-about .intro-note p{
  margin:0;
  font-size:.88rem;
  line-height:1.75;
  color:var(--page-dim);
}
.page-about .vertical-annotation{
  position:absolute;
  top:4.5rem;
  right:.5rem;
  writing-mode:vertical-rl;
  font-family:var(--font-data);
  font-size:.68rem;
  letter-spacing:.32em;
  color:var(--page-rule);
}
@media (max-width:600px){
  .page-about .vertical-annotation{
    display:none;
  }
}
.page-about .section-block{
  padding:3.5rem 0;
  scroll-margin-top:calc(var(--header-h) + 1rem);
}
.page-about .section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:1rem;
  margin-bottom:2.5rem;
}
.page-about .section-index{
  padding:.35rem .7rem;
  font-family:var(--font-data);
  font-size:.86rem;
  font-weight:500;
  color:var(--page-accent);
  background:var(--page-glass);
  border:1px dashed var(--page-rule);
}
.page-about .section-title{
  margin:0;
  font-family:var(--font-display);
  font-size:clamp(1.5rem,3vw,2.45rem);
  font-weight:700;
  line-height:1.24;
  letter-spacing:-.01em;
}
.page-about .diag-rule{
  flex:1;
  min-width:60px;
  height:8px;
  background:linear-gradient(135deg,var(--page-rule) 0 55%,var(--page-warm) 55% 100%);
}
.page-about .about-origin{
  background:linear-gradient(120deg,transparent 0 62%,rgba(57,255,20,.045) 62% 100%);
}
.page-about .origin-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:2.25rem;
  align-items:start;
}
.page-about .origin-main>p{
  margin:0 0 1.1rem;
  max-width:70ch;
  font-size:1rem;
  line-height:1.95;
  color:var(--page-light);
  opacity:.9;
}
.page-about .origin-main strong{
  font-family:var(--font-data);
  font-size:.96em;
  font-weight:500;
  color:var(--page-accent);
}
.page-about .about-figure{
  margin:0;
}
.page-about .about-media{
  position:relative;
  overflow:hidden;
  line-height:0;
  background:var(--page-rule);
  aspect-ratio:auto;
}
.page-about .about-media::after{
  content:"";
  position:absolute;
  right:0;
  bottom:0;
  border-bottom:22px solid var(--page-warm);
  border-left:22px solid transparent;
  opacity:.9;
  pointer-events:none;
}
.page-about .about-media img{
  display:block;
  width:100%;
  max-width:100%;
  height:auto;
  object-fit:cover;
}
.page-about .about-caption{
  margin-top:.8rem;
  padding-left:1rem;
  border-left:3px solid var(--page-accent);
  font-family:var(--font-data);
  font-size:.78rem;
  line-height:1.65;
  color:var(--page-dim);
}
.page-about .origin-figure{
  margin-top:2rem;
}
.page-about .origin-card{
  position:relative;
  padding:1.65rem 1.6rem 1.8rem;
  background:var(--page-panel);
  border:1px solid var(--page-rule);
  box-shadow:var(--page-shadow);
}
.page-about .origin-card::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:4px;
  background:linear-gradient(90deg,var(--page-warm),transparent 72%);
}
.page-about .origin-card-label{
  font-family:var(--font-data);
  font-size:.74rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--page-warm);
}
.page-about .model-list{
  list-style:none;
  margin:1.25rem 0 0;
  padding:0;
  display:grid;
  gap:1rem;
}
.page-about .model-list li{
  display:flex;
  align-items:baseline;
  gap:.9rem;
  font-size:.92rem;
  line-height:1.7;
  color:var(--page-light);
}
.page-about .model-num{
  flex-shrink:0;
  font-family:var(--font-data);
  font-size:.78rem;
  color:var(--page-accent);
}
.page-about .origin-footnote{
  margin-top:1.6rem;
  padding-top:1.2rem;
  border-top:1px dashed var(--page-rule);
}
.page-about .origin-footnote p{
  margin:.85rem 0 0;
  font-size:.84rem;
  line-height:1.75;
  color:var(--page-dim);
}
.page-about .about-milestones{
  background:linear-gradient(180deg,rgba(17,34,64,.5),transparent 280px);
}
.page-about .m-strip{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:2rem;
}
.page-about .year-rail{
  display:flex;
  gap:.5rem;
  overflow-x:auto;
  padding-bottom:.4rem;
  position:relative;
  z-index:2;
}
.page-about .year-link{
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  padding:.6rem 1.1rem;
  white-space:nowrap;
  font-family:var(--font-data);
  font-size:.95rem;
  color:var(--page-dim);
  text-decoration:none;
  background:var(--page-panel);
  border:1px solid var(--page-rule);
  transition:color .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease),transform .25s var(--ease);
}
.page-about .year-link::before{
  content:"";
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--page-rule);
  transition:background .25s var(--ease),box-shadow .25s var(--ease);
}
.page-about .year-link:hover,
.page-about .year-link.is-active{
  color:var(--page-accent);
  border-color:var(--page-accent);
  background:rgba(57,255,20,.08);
}
.page-about .year-link.is-active::before,
.page-about .year-link:hover::before{
  background:var(--page-accent);
  box-shadow:0 0 0 4px rgba(57,255,20,.14);
}
.page-about .m-list{
  display:grid;
  gap:1.6rem;
}
.page-about .milestone-card{
  position:relative;
  padding:1.7rem 1.75rem 1.8rem;
  background:var(--page-panel);
  border:1px solid var(--page-rule);
  box-shadow:var(--page-shadow);
  scroll-margin-top:calc(var(--header-h) + 1rem);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.page-about .milestone-card::before{
  content:"";
  position:absolute;
  inset:0 auto 0 0;
  width:4px;
  background:linear-gradient(180deg,var(--page-accent),var(--page-warm));
  opacity:.85;
}
.page-about .milestone-card::after{
  content:"";
  position:absolute;
  right:-1px;
  bottom:-1px;
  width:40px;
  height:40px;
  background:linear-gradient(135deg,transparent 50%,var(--page-warm) 50%);
  opacity:.7;
  pointer-events:none;
}
.page-about .milestone-card:hover{
  border-color:rgba(57,255,20,.5);
  box-shadow:0 16px 30px rgba(2,8,20,.55);
  transform:translateY(-4px);
}
.page-about .milestone-topline{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.8rem;
}
.page-about .milestone-year{
  display:inline-flex;
}
.page-about .milestone-year-num{
  display:inline-block;
  padding:.35rem .8rem .35rem .7rem;
  font-family:var(--font-data);
  font-size:1rem;
  font-weight:700;
  line-height:1;
  color:var(--page-ink);
  background:var(--page-accent);
  clip-path:polygon(0 0,100% 0,calc(100% - 8px) 100%,0 100%);
}
.page-about .milestone-label{
  font-family:var(--font-data);
  font-size:.74rem;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--page-warm);
}
.page-about .milestone-card h3{
  margin:.9rem 0 .75rem;
  font-family:var(--font-display);
  font-size:1.32rem;
  font-weight:700;
  line-height:1.4;
  color:var(--page-light);
}
.page-about .milestone-card p{
  margin:0 0 1rem;
  font-size:.94rem;
  line-height:1.88;
  color:var(--page-dim);
}
.page-about .milestone-meta{
  display:flex;
  flex-wrap:wrap;
  gap:.5rem;
}
.page-about .timeline-figure{
  margin-top:3.25rem;
}
.page-about .about-refresh{
  border-top:1px dashed var(--page-rule);
  border-bottom:1px dashed var(--page-rule);
}
.page-about .refresh-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:2.5rem;
  align-items:center;
}
.page-about .refresh-copy p{
  margin:0 0 1.25rem;
  max-width:64ch;
  font-size:1rem;
  line-height:1.95;
  color:var(--page-light);
  opacity:.9;
}
.page-about .refresh-points{
  list-style:none;
  margin:1.5rem 0 0;
  padding:0;
  display:grid;
  gap:.9rem;
  max-width:58ch;
}
.page-about .refresh-points li{
  display:flex;
  gap:.8rem;
  align-items:flex-start;
  font-size:.94rem;
  line-height:1.75;
  color:var(--page-dim);
}
.page-about .point-dot{
  flex-shrink:0;
  width:8px;
  height:8px;
  margin-top:.55rem;
  border-radius:50%;
  background:var(--page-warm);
}
.page-about .refresh-figure{
  margin:0;
}
.page-about .refresh-steps{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:1rem;
  margin-top:3rem;
}
.page-about .rstep{
  position:relative;
  padding:1.35rem 1.35rem 1.5rem;
  background:rgba(17,34,64,.55);
  border:1px solid var(--page-rule);
  transition:transform .26s var(--ease),border-color .26s var(--ease);
}
.page-about .rstep:hover{
  transform:translateY(-3px);
  border-color:rgba(57,255,20,.45);
}
.page-about .rstep-num{
  display:block;
  font-family:var(--font-data);
  font-size:2rem;
  font-weight:600;
  line-height:1;
  color:var(--page-accent);
}
.page-about .rstep h3{
  margin:.85rem 0 .4rem;
  font-size:1rem;
  font-weight:600;
  color:var(--page-light);
}
.page-about .rstep p{
  margin:0;
  font-size:.83rem;
  line-height:1.65;
  color:var(--page-dim);
}
.page-about .about-capability{
  position:relative;
  background-image:linear-gradient(rgba(30,58,95,.2) 1px,transparent 1px);
  background-size:34px 34px;
}
.page-about .cap-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:2.25rem;
  align-items:stretch;
}
.page-about .cap-stats{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:1rem;
}
.page-about .stat-card{
  position:relative;
  overflow:hidden;
  padding:1.5rem 1.3rem 1.6rem;
  background:var(--page-panel);
  border:1px solid var(--page-rule);
  box-shadow:var(--page-shadow);
}
.page-about .stat-card::after{
  content:"";
  position:absolute;
  right:-18px;
  bottom:-18px;
  width:54px;
  height:54px;
  background:linear-gradient(135deg,transparent 42%,var(--page-warm) 42% 60%,transparent 60%);
  opacity:.7;
  pointer-events:none;
}
.page-about .stat-num{
  display:block;
  font-family:var(--font-data);
  font-size:clamp(1.85rem,4vw,2.9rem);
  font-weight:600;
  line-height:1.05;
  letter-spacing:-.01em;
  color:var(--page-accent);
}
.page-about .stat-unit{
  margin-left:.4rem;
  font-family:var(--font-data);
  font-size:.78rem;
  color:var(--page-warm);
}
.page-about .stat-label{
  display:block;
  margin-top:.7rem;
  font-size:.88rem;
  line-height:1.65;
  color:var(--page-dim);
}
.page-about .cap-panel{
  padding:2rem 1.7rem;
  background:linear-gradient(135deg,rgba(17,34,64,.92),rgba(10,25,47,.62));
  border:1px solid var(--page-rule);
}
.page-about .cap-panel h3{
  margin:0 0 .9rem;
  font-family:var(--font-display);
  font-size:1.4rem;
  font-weight:700;
  color:var(--page-light);
}
.page-about .cap-panel p{
  margin:0 0 1rem;
  font-size:.93rem;
  line-height:1.85;
  color:var(--page-dim);
}
.page-about .cap-panel p:last-of-type{
  margin-bottom:0;
}
.page-about .cap-cta{
  display:flex;
  flex-wrap:wrap;
  gap:.8rem;
  margin-top:1.6rem;
}
.page-about .about-next{
  padding-top:1rem;
}
.page-about .about-next-panel{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:1rem;
  padding:2.4rem 2rem;
  position:relative;
  overflow:hidden;
}
.page-about .reverse-num{
  font-family:var(--font-data);
  font-size:.8rem;
  letter-spacing:.18em;
  color:var(--page-warm);
}
.page-about .about-next-panel p{
  margin:0;
  font-size:1.3rem;
  font-weight:700;
  color:var(--page-ink);
}
.page-about .next-links{
  display:flex;
  flex-wrap:wrap;
  gap:.8rem;
  margin-top:.4rem;
}
.page-about .about-next-panel .btn--ghost{
  border-color:rgba(10,25,47,.38);
  color:var(--page-ink);
}
.page-about .about-next-panel .btn--ghost:hover{
  border-color:var(--page-ink);
  background:rgba(10,25,47,.06);
}
.page-about .year-link:focus-visible,
.page-about .btn:focus-visible,
.page-about .text-link:focus-visible{
  outline:2px solid var(--page-accent);
  outline-offset:3px;
}
@media (min-width:768px){
  .page-about .section-block{
    padding:4.5rem 0;
  }
  .page-about .origin-grid{
    grid-template-columns:minmax(0,3fr) minmax(0,2fr);
    gap:2.75rem;
  }
  .page-about .origin-card{
    margin-top:.5rem;
    position:sticky;
    top:calc(var(--header-h) + 2rem);
  }
  .page-about .refresh-grid{
    grid-template-columns:minmax(0,1fr) minmax(0,1fr);
    gap:3rem;
  }
  .page-about .refresh-steps{
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:1.1rem;
  }
  .page-about .cap-grid{
    grid-template-columns:minmax(0,3fr) minmax(0,2fr);
    gap:2.5rem;
  }
  .page-about .cap-stats{
    grid-template-columns:minmax(0,1fr) minmax(0,1fr);
    align-content:start;
  }
}
@media (min-width:900px){
  .page-about .m-strip{
    grid-template-columns:190px minmax(0,1fr);
    column-gap:2.75rem;
    align-items:start;
  }
  .page-about .year-rail{
    flex-direction:column;
    align-items:stretch;
    gap:.5rem;
    overflow-y:auto;
    padding-bottom:0;
    position:sticky;
    top:calc(var(--header-h) + 2rem);
    max-height:calc(100vh - var(--header-h) - 3rem);
  }
  .page-about .year-link{
    width:100%;
    justify-content:flex-start;
    border-width:1px 1px 1px 3px;
  }
  .page-about .milestone-card:nth-child(even){
    margin-left:clamp(.2rem,3vw,2.25rem);
  }
  .page-about .milestone-card:nth-child(odd){
    margin-right:clamp(0rem,2vw,1.5rem);
  }
}
@media (min-width:1080px){
  .page-about .section-block{
    padding:5.5rem 0;
  }
  .page-about .about-intro{
    padding:5.5rem 0 6rem;
  }
  .page-about .about-intro::before{
    width:340px;
  }
  .page-about .vertical-annotation{
    right:1rem;
    top:5rem;
  }
  .page-about .cap-stats{
    gap:1.25rem;
  }
  .page-about .refresh-steps{
    gap:1.4rem;
  }
}
@media (prefers-reduced-motion:reduce){
  .page-about *,
  .page-about *::before,
  .page-about *::after{
    transition-duration:.01ms!important;
    animation-duration:.01ms!important;
    scroll-behavior:auto!important;
  }
}