.page-about{
  background:var(--color-bg);
  color:var(--color-ink);
  overflow-x:clip;
}
.page-about .about-hero{
  position:relative;
  padding:var(--space-lg) 0 var(--space-xl);
  border-bottom:3px solid var(--color-ink);
  background:linear-gradient(135deg,transparent 0%,transparent 72%,rgba(255,75,43,0.10) 72%,rgba(255,75,43,0.10) 100%),var(--color-bg);
}
.page-about .about-hero::after{
  content:"";
  position:absolute;
  right:0;
  bottom:-3px;
  width:160px;
  height:3px;
  background:var(--color-primary);
}
.page-about .about-hero__inner{
  max-width:960px;
}
.page-about .about-hero .page-hero__label{
  display:inline-block;
  background:var(--color-ink);
  color:var(--color-card);
  padding:6px 14px;
  font-size:0.82rem;
  letter-spacing:0.12em;
  text-transform:uppercase;
  margin-bottom:var(--space-md);
}
.page-about .about-hero__title{
  font-family:var(--font-heading);
  font-size:clamp(2.4rem,8vw,5rem);
  font-weight:900;
  line-height:0.96;
  letter-spacing:-0.02em;
  margin:0 0 var(--space-sm);
  color:var(--color-ink);
  text-transform:uppercase;
}
.page-about .about-hero__sub{
  display:block;
  color:var(--color-primary);
  font-family:var(--font-body);
  font-size:clamp(1rem,3vw,1.7rem);
  font-weight:700;
  letter-spacing:0.04em;
  margin-top:var(--space-sm);
  text-transform:none;
}
.page-about .about-hero__lead{
  max-width:680px;
  font-size:clamp(1rem,2vw,1.12rem);
  line-height:1.85;
  border-left:4px solid var(--color-primary);
  padding-left:var(--space-md);
  margin-bottom:var(--space-lg);
}
.page-about .about-hero__meta{
  display:flex;
  flex-wrap:wrap;
  gap:var(--space-xs);
  font-size:0.82rem;
}
.page-about .about-hero__meta .index-mono{
  border:1px solid var(--color-ink);
  padding:6px 12px;
  background:transparent;
}
.page-about .about-section-header{
  margin-bottom:var(--space-lg);
  border-bottom:2px solid var(--color-ink);
  padding-bottom:var(--space-sm);
}
.page-about .about-section-header .section-title{
  font-family:var(--font-heading);
  font-size:clamp(1.5rem,3.6vw,2.2rem);
  font-weight:700;
  line-height:1.1;
  text-transform:uppercase;
  letter-spacing:-0.01em;
  margin:0;
  color:var(--color-ink);
}
.page-about .about-section-header .section-title .index-mono{
  background:var(--color-primary);
  color:var(--color-card);
  padding:3px 12px;
  display:inline-block;
  margin-right:10px;
  font-size:0.8rem;
  letter-spacing:0.06em;
}
.page-about .about-overview{
  padding:var(--space-xl) 0;
  position:relative;
}
.page-about .about-overview__grid{
  display:grid;
  grid-template-columns:1fr;
  gap:var(--space-lg);
}
.page-about .about-overview__text{
  font-size:1.05rem;
  line-height:1.8;
  margin-bottom:var(--space-lg);
}
.page-about .about-stats{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:var(--space-sm);
  margin-bottom:var(--space-md);
}
.page-about .stat-item{
  padding:var(--space-md) var(--space-sm);
  background:var(--color-card);
  border:1.5px solid var(--color-ink);
  box-shadow:var(--shadow-hard);
  transform:rotate(var(--tilt,0deg));
  transition:transform var(--transition-base),box-shadow var(--transition-base);
}
.page-about .stat-item:nth-child(odd){
  --tilt:-0.6deg;
}
.page-about .stat-item:nth-child(even){
  --tilt:0.6deg;
}
.page-about .stat-item:hover{
  transform:rotate(0deg) translateY(-4px);
  box-shadow:6px 6px 0 var(--color-ink);
}
.page-about .stat-item__num{
  display:block;
  font-family:var(--font-mono);
  font-size:clamp(1.5rem,3vw,2.2rem);
  font-weight:700;
  color:var(--color-primary);
  line-height:1;
  margin-bottom:6px;
}
.page-about .stat-item__label{
  font-size:0.85rem;
  color:var(--color-deep-gray);
  letter-spacing:0.05em;
}
.page-about .about-overview__note{
  font-size:0.95rem;
  line-height:1.75;
  color:var(--color-deep-gray);
  border-left:3px solid var(--color-accent);
  padding-left:var(--space-sm);
}
.page-about .about-overview__visual{
  align-self:center;
}
.page-about .about-milestones{
  padding:var(--space-xl) 0;
  border-top:2px solid var(--color-line);
  border-bottom:2px solid var(--color-line);
  background:linear-gradient(180deg,transparent 0%,rgba(27,73,101,0.05) 100%),var(--color-bg);
}
.page-about .about-milestones__lead{
  max-width:560px;
  line-height:1.8;
  margin-bottom:var(--space-lg);
  font-size:1rem;
}
.page-about .about-timeline{
  display:grid;
  grid-template-columns:1fr;
  gap:var(--space-md);
}
.page-about .about-timeline__nav{
  display:flex;
  gap:var(--space-xs);
  overflow-x:auto;
  padding-bottom:var(--space-sm);
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.page-about .about-timeline__nav::-webkit-scrollbar{
  display:none;
}
.page-about .timeline-nav__link{
  flex-shrink:0;
  padding:8px var(--space-sm);
  background:var(--color-card);
  border:2px solid var(--color-ink);
  font-size:0.85rem;
  text-decoration:none;
  color:var(--color-ink);
  text-transform:uppercase;
  letter-spacing:0.06em;
  clip-path:polygon(8px 0,100% 0,calc(100% - 8px) 100%,0 100%);
  transition:background var(--transition-base),color var(--transition-base),transform var(--transition-base);
}
.page-about .timeline-nav__link:hover,
.page-about .timeline-nav__link:focus-visible{
  background:var(--color-primary);
  color:var(--color-card);
  transform:translateY(-2px);
}
.page-about .about-timeline__items{
  position:relative;
  padding-left:28px;
}
.page-about .about-timeline__items::before{
  content:"";
  position:absolute;
  left:8px;
  top:0;
  bottom:0;
  width:3px;
  background:var(--color-ink);
  opacity:0.85;
}
.page-about .milestone-card{
  position:relative;
  margin-bottom:var(--space-md);
  padding:var(--space-md);
  background:var(--color-card);
  border:1.5px solid var(--color-ink);
  border-left-width:6px;
  border-left-color:var(--color-primary);
  transition:transform var(--transition-base),box-shadow var(--transition-base);
  scroll-margin-top:calc(var(--header-h) + var(--space-md));
}
.page-about .milestone-card::before{
  content:"";
  position:absolute;
  left:-24px;
  top:30px;
  width:12px;
  height:12px;
  background:var(--color-primary);
  border:2px solid var(--color-ink);
  transform:rotate(45deg);
}
.page-about .milestone-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-soft);
}
.page-about .milestone-card__year{
  display:inline-block;
  background:var(--color-ink);
  color:var(--color-card);
  padding:4px 10px;
  font-size:0.85rem;
  margin-bottom:var(--space-sm);
}
.page-about .milestone-card__body h3{
  font-family:var(--font-heading);
  font-size:1.25rem;
  font-weight:700;
  margin:0 0 var(--space-xs);
  text-transform:uppercase;
}
.page-about .milestone-card__body p{
  font-size:0.92rem;
  line-height:1.7;
  color:var(--color-deep-gray);
  margin:0;
}
.page-about .about-milestones__visual{
  margin-top:var(--space-lg);
}
.page-about .about-certification{
  padding:var(--space-xl) 0;
}
.page-about .about-certification__grid{
  display:grid;
  grid-template-columns:1fr;
  gap:var(--space-md);
  margin-bottom:var(--space-lg);
}
.page-about .cert-card{
  position:relative;
  padding:var(--space-md);
  background:var(--color-card);
  border:2px solid var(--color-ink);
  clip-path:polygon(0 0,calc(100% - 16px) 0,100% 16px,100% 100%,16px 100%,0 calc(100% - 16px));
  transition:transform var(--transition-base),filter var(--transition-base),background var(--transition-base);
}
.page-about .cert-card:hover,
.page-about .cert-card:focus-within{
  transform:translateY(-4px);
  filter:drop-shadow(4px 4px 0 var(--color-ink));
  background:var(--color-bg);
}
.page-about .cert-card__icon{
  width:64px;
  height:64px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--color-bg);
  border:2px solid var(--color-ink);
  margin-bottom:var(--space-sm);
}
.page-about .cert-card__label{
  font-size:0.8rem;
  letter-spacing:0.08em;
  color:var(--color-accent);
  text-transform:uppercase;
  margin-bottom:6px;
}
.page-about .cert-card h3{
  font-family:var(--font-heading);
  font-size:1.15rem;
  font-weight:700;
  margin:0 0 var(--space-xs);
  text-transform:uppercase;
}
.page-about .cert-card > p{
  font-size:0.9rem;
  line-height:1.65;
  color:var(--color-deep-gray);
  margin:0 0 var(--space-sm);
}
.page-about .cert-card__detail{
  max-height:0;
  overflow:hidden;
  opacity:0;
  transform:translateY(-4px);
  transition:max-height 0.35s ease,opacity 0.35s ease,transform 0.35s ease;
  border-top:1px dashed var(--color-line);
}
.page-about .cert-card:hover .cert-card__detail,
.page-about .cert-card:focus-within .cert-card__detail{
  max-height:240px;
  opacity:1;
  transform:translateY(0);
}
.page-about .cert-card__detail-mark{
  display:block;
  font-size:0.85rem;
  line-height:1.6;
  padding-top:var(--space-sm);
  color:var(--color-ink);
}
.page-about .about-team{
  padding:var(--space-xl) 0;
  background:var(--color-ink);
  color:var(--color-card);
  border-top:4px solid var(--color-primary);
}
.page-about .about-team .about-section-header{
  border-bottom-color:rgba(255,252,247,0.25);
}
.page-about .about-team .section-title{
  color:var(--color-card);
}
.page-about .about-team .section-title .index-mono{
  background:var(--color-primary);
  color:var(--color-card);
}
.page-about .about-team__lead{
  max-width:640px;
  font-size:1.05rem;
  line-height:1.85;
  color:var(--color-card);
  opacity:0.92;
  margin-bottom:var(--space-lg);
}
.page-about .about-team__values{
  display:grid;
  grid-template-columns:1fr;
  gap:var(--space-md);
  margin-bottom:var(--space-lg);
}
.page-about .value-item{
  padding:var(--space-md);
  border:2px solid var(--color-card);
  background:var(--color-card);
  color:var(--color-ink);
  position:relative;
  transition:transform var(--transition-base),box-shadow var(--transition-base);
}
.page-about .value-item:hover{
  transform:translateY(-4px);
  box-shadow:0 8px 24px rgba(0,0,0,0.25);
}
.page-about .value-item::after{
  content:"";
  position:absolute;
  right:-6px;
  bottom:-6px;
  width:14px;
  height:14px;
  background:var(--color-primary);
  border:1px solid var(--color-card);
}
.page-about .value-item__index{
  color:var(--color-primary);
  font-size:0.85rem;
  margin-bottom:var(--space-xs);
  display:inline-block;
}
.page-about .value-item h3{
  font-family:var(--font-heading);
  font-size:1.15rem;
  font-weight:700;
  margin:0 0 var(--space-xs);
  text-transform:uppercase;
}
.page-about .value-item p{
  font-size:0.92rem;
  line-height:1.7;
  color:var(--color-deep-gray);
  margin:0;
}
.page-about .about-team__note{
  border:2px solid var(--color-card);
  border-left:6px solid var(--color-primary);
  background:var(--color-bg);
  color:var(--color-ink);
  box-shadow:var(--shadow-hard);
}
.page-about .about-team__note p{
  font-size:0.95rem;
  line-height:1.75;
  margin:0 0 var(--space-md);
}
.page-about .about-team__note-links{
  display:flex;
  flex-wrap:wrap;
  gap:var(--space-sm);
}
.page-about .about-overview__visual img,
.page-about .about-milestones__visual img,
.page-about .about-certification__visual img{
  display:block;
  width:100%;
  max-width:100%;
  height:auto;
  object-fit:cover;
  background:var(--color-card);
  border:2px solid var(--color-ink);
}
@media (min-width:768px){
  .page-about .about-overview__grid{
    grid-template-columns:1fr 1fr;
    gap:var(--space-lg);
  }
  .page-about .about-stats{
    grid-template-columns:1fr 1fr;
  }
  .page-about .about-certification__grid{
    grid-template-columns:repeat(3,1fr);
    gap:var(--space-md);
  }
  .page-about .about-team__values{
    grid-template-columns:repeat(3,1fr);
    gap:var(--space-md);
  }
}
@media (min-width:900px){
  .page-about .about-timeline{
    grid-template-columns:180px 1fr;
    gap:0;
  }
  .page-about .about-timeline__nav{
    position:sticky;
    top:calc(var(--header-h) + var(--space-md));
    align-self:start;
    flex-direction:column;
    overflow:visible;
    padding:var(--space-sm) 0;
    border-right:3px solid var(--color-ink);
    padding-right:var(--space-md);
  }
  .page-about .timeline-nav__link{
    clip-path:polygon(0 0,100% 0,calc(100% - 8px) 100%,0 100%);
  }
  .page-about .about-timeline__items{
    padding-left:40px;
  }
  .page-about .about-timeline__items::before{
    left:20px;
  }
  .page-about .milestone-card{
    margin-left:0;
    margin-right:calc(var(--space-lg) * 0.5);
  }
  .page-about .milestone-card:nth-child(even){
    margin-left:calc(var(--space-lg) * 0.5);
    margin-right:0;
  }
}