.page-about{
  --about-gap: clamp(3rem, 6vw, 5.5rem);
  --about-index-w: 230px;
  --about-cutting: 14px;
  --about-acid-wash: rgba(0, 230, 138, 0.12);
  --about-orange-wash: rgba(255, 107, 53, 0.12);
  --about-deep-line: rgba(11, 29, 58, 0.22);
  color: var(--color-ink);
}

.page-about .breadcrumbs{
  margin-bottom: 1.5rem;
}

.page-about .about-hero{
  background:
    linear-gradient(135deg, rgba(0, 230, 138, 0.08) 0%, transparent 40%),
    linear-gradient(45deg, transparent 70%, rgba(255, 107, 53, 0.12) 100%),
    var(--color-bg-deep);
  color: var(--color-on-deep);
  padding: clamp(1.5rem, 4vw, 2.75rem) clamp(1rem, 3.5vw, 2.5rem);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
  margin-bottom: clamp(2rem, 5vw, 3.75rem);
}

.page-about .about-hero-meta{
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.page-about .about-hero-serial,
.page-about .about-hero-status{
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  padding: 0.3rem 0.6rem;
  display: inline-block;
}

.page-about .about-hero-serial{
  color: var(--color-acid);
  background: var(--about-acid-wash);
  border: 1px solid rgba(0, 230, 138, 0.35);
}

.page-about .about-hero-status{
  color: var(--color-on-deep);
  border: 1px solid rgba(245, 241, 232, 0.25);
}

.page-about .about-hero .page-title{
  font-size: clamp(2.5rem, 7vw, 4.75rem);
  line-height: 1.02;
  margin: 0 0 0.6rem;
  color: var(--color-on-deep);
}

.page-about .about-hero-subtitle{
  margin: 0 0 1.25rem;
  font-family: var(--font-mono);
  font-size: clamp(0.875rem, 2vw, 1.0625rem);
  color: var(--color-acid);
  letter-spacing: 0.06em;
}

.page-about .about-hero-abstract{
  max-width: 46em;
  margin: 0;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-on-deep);
  opacity: 0.88;
}

.page-about .about-hero-stats{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  margin-top: 2rem;
  border: 1px solid rgba(245, 241, 232, 0.16);
}

.page-about .about-stat{
  padding: 1.1rem 1.25rem 1.25rem;
  background: var(--color-bg-deep);
  border-right: 1px solid rgba(245, 241, 232, 0.12);
  border-bottom: 1px solid rgba(245, 241, 232, 0.12);
}

.page-about .about-stat .stat-num{
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 700;
  line-height: 1;
  color: var(--color-acid);
}

.page-about .about-stat-label{
  display: block;
  margin-top: 0.4rem;
  font-size: 0.8125rem;
  color: var(--color-on-deep);
  opacity: 0.7;
}

.page-about .about-layout{
  display: block;
}

.page-about .about-indexpanel{
  margin-bottom: 2.25rem;
  padding: 1.25rem;
  border: 1px solid var(--color-line);
  background:
    linear-gradient(135deg, rgba(0, 230, 138, 0.06), transparent 60%),
    var(--color-panel);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-about .about-indexpanel-title{
  display: block;
  margin-bottom: 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-dim);
}

.page-about .about-indexnav{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

.page-about .about-indexlink{
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  padding: 0.7rem 0.8rem;
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  text-decoration: none;
  color: var(--color-ink);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-about .about-indexlink:hover,
.page-about .about-indexlink:focus-visible{
  border-color: var(--color-bg-deep);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(11, 29, 58, 0.08);
}

.page-about .about-indexlink:focus-visible{
  outline: 2px solid var(--color-orange);
  outline-offset: 2px;
}

.page-about .about-indexnum{
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-orange);
}

.page-about .about-indextext{
  font-size: 0.9375rem;
  font-weight: 600;
}

.page-about .about-indexnote{
  margin: 1rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--color-dim);
}

.page-about .about-indexnote a{
  color: var(--color-bg-deep);
  font-weight: 600;
  text-decoration-color: var(--color-orange);
  text-underline-offset: 0.2em;
}

.page-about .about-section{
  scroll-margin-top: calc(var(--header-h) + 1.5rem);
  margin-bottom: var(--about-gap);
}

.page-about .about-section-head{
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
}

.page-about .about-section-num{
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-orange);
  background: var(--about-orange-wash);
  border: 1px solid rgba(255, 107, 53, 0.28);
  padding: 0.3rem 0.55rem;
  white-space: nowrap;
}

.page-about .about-section-head h2{
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(1.75rem, 4vw, 2.625rem);
  line-height: 1.15;
  letter-spacing: 0.02em;
}

.page-about .about-prose p{
  margin: 0 0 1.125rem;
  font-size: 1rem;
  line-height: 1.8;
}

.page-about .about-prose a{
  color: var(--color-bg-deep);
  font-weight: 600;
  text-decoration-color: var(--color-orange);
  text-underline-offset: 0.2em;
}

.page-about .about-who-points{
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.page-about .about-pointcard{
  position: relative;
  padding: 1.25rem 1.375rem 1.375rem;
  background: var(--color-panel);
  border: 1px solid var(--color-line);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-about .about-pointcard-tag{
  display: inline-block;
  margin-bottom: 0.8rem;
  padding: 0.2rem 0.5rem;
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  color: var(--color-dim);
}

.page-about .about-pointcard h3{
  margin: 0 0 0.55rem;
  font-size: 1.125rem;
  font-weight: 700;
}

.page-about .about-pointcard p{
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
}

.page-about .about-figure{
  margin: 1.5rem 0;
  padding: 0.5rem 0.5rem 0;
  background: var(--color-bg-deep);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-about .about-figure img{
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--color-dim);
}

.page-about .about-figure figcaption{
  padding: 0.6rem 0.25rem 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--color-on-deep);
  opacity: 0.72;
}

.page-about .about-timeline{
  list-style: none;
  margin: 2.25rem 0 0;
  padding: 0 0 0 1.5rem;
  border-left: 2px solid var(--about-deep-line);
}

.page-about .about-timeline-item{
  position: relative;
  padding: 0 0 2.25rem 1rem;
}

.page-about .about-timeline-item:last-child{
  padding-bottom: 0.5rem;
}

.page-about .about-timeline-item::before{
  content: "";
  position: absolute;
  left: -1.5rem;
  top: 0.4rem;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  background: var(--color-bg);
  border: 3px solid var(--color-acid);
  transform: translateX(-50%);
  box-shadow: 0 0 0 3px var(--color-bg);
}

.page-about .about-timeline-item::after{
  content: "";
  display: block;
  height: 1px;
  margin-top: 1.75rem;
  background: linear-gradient(90deg, var(--color-line), transparent 100%);
}

.page-about .about-timeline-item:last-child::after{
  display: none;
}

.page-about .about-timeline-year{
  display: block;
  margin-bottom: 0.65rem;
  font-family: var(--font-mono);
  font-size: clamp(2.25rem, 6vw, 3.5rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--color-bg-deep);
}

.page-about .about-timeline-body h3{
  margin: 0 0 0.5rem;
  font-size: 1.125rem;
  font-weight: 700;
}

.page-about .about-timeline-body p{
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
}

.page-about .about-maintain-grid{
  display: grid;
  gap: 1.5rem;
}

.page-about .about-maintain-prose p{
  margin: 0 0 1.125rem;
  line-height: 1.8;
}

.page-about .about-maintain-prose a{
  color: var(--color-bg-deep);
  font-weight: 600;
  text-decoration-color: var(--color-orange);
  text-underline-offset: 0.2em;
}

.page-about .about-maintain-process{
  padding: 1.375rem 1.5rem;
  background:
    linear-gradient(140deg, rgba(0, 230, 138, 0.12), transparent 55%),
    var(--color-bg-deep);
  color: var(--color-on-deep);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-about .about-maintain-process h3{
  margin: 0 0 1rem;
  font-family: var(--font-head);
  font-size: 1.25rem;
  color: var(--color-acid);
}

.page-about .about-processlist{
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-processlist li{
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.65rem 0;
  font-size: 0.9375rem;
  color: var(--color-on-deep);
}

.page-about .about-processlist li + li{
  border-top: 1px dashed rgba(245, 241, 232, 0.22);
}

.page-about .about-process-step{
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-orange);
}

.page-about .about-figure-side{
  margin-top: 1.5rem;
}

.page-about .about-maintain-principles{
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}

.page-about .about-principle{
  padding: 1rem 1.25rem;
  border: 1px solid var(--color-line);
  border-left: 4px solid var(--color-orange);
  background: var(--color-panel);
}

.page-about .about-principle-num{
  display: block;
  margin-bottom: 0.35rem;
  font-weight: 700;
}

.page-about .about-principle p{
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
}

.page-about .about-liaison-lead{
  margin: 0 0 1.5rem;
  line-height: 1.8;
}

.page-about .about-liaison-grid{
  display: grid;
  gap: 1rem;
  margin-bottom: 2rem;
}

.page-about .about-contactcard{
  padding: 1.1rem 1.25rem;
  background: var(--color-panel);
  border: 1px solid var(--color-line);
  border-left: 4px solid var(--color-acid);
}

.page-about .about-contactcard-label{
  display: block;
  margin-bottom: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--color-dim);
}

.page-about .about-contactcard-value{
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-ink);
  word-break: break-word;
}

.page-about .about-liaison-foot{
  display: grid;
  gap: 1.5rem;
}

.page-about .about-liaison-cta{
  padding: 1.375rem 1.5rem;
  background: var(--color-bg);
  border: 1px dashed var(--color-line);
}

.page-about .about-liaison-cta p{
  margin: 0 0 0.75rem;
  font-size: 0.9375rem;
  line-height: 1.75;
}

.page-about .about-liaison-cta p:last-child{
  margin-bottom: 0;
}

.page-about .about-liaison-cta a{
  color: var(--color-bg-deep);
  font-weight: 600;
  text-decoration-color: var(--color-orange);
  text-underline-offset: 0.2em;
}

@media (min-width: 640px){
  .page-about .about-hero-stats{
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about .about-liaison-grid{
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 768px){
  .page-about .about-who-points,
  .page-about .about-maintain-principles{
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .about-maintain-grid{
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .page-about .about-indexnav{
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about .about-liaison-foot{
    grid-template-columns: minmax(0, 300px) 1fr;
    gap: 2rem;
  }
}

@media (min-width: 992px){
  .page-about .about-layout{
    display: grid;
    grid-template-columns: var(--about-index-w) minmax(0, 1fr);
    gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
  }

  .page-about .about-indexpanel{
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
    margin-bottom: 0;
  }

  .page-about .about-indexnav{
    grid-template-columns: 1fr;
  }

  .page-about .about-figure-side{
    max-width: 72%;
  }
}

@media (prefers-reduced-motion: reduce){
  .page-about *,
  .page-about *::before,
  .page-about *::after{
    animation: none !important;
    transition: none !important;
  }
}