.page-about{
  --about-orange: var(--color-orange);
  --about-blue: var(--color-blue);
  --about-purple: var(--color-purple);
  --about-neon: var(--color-neon);
  --about-navy: var(--color-navy);
  --about-paper: var(--color-paper);
  --about-panel: var(--color-panel);
  --about-ink: var(--color-ink);
  --about-muted: var(--color-muted);
  background: var(--about-paper);
  color: var(--about-ink);
  overflow-x: hidden;
}

.page-about h1,
.page-about h2,
.page-about h3{
  font-family: var(--font-title);
}

.page-about h1{
  font-size: clamp(2.6rem, 7vw, 5.5rem);
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: -0.03em;
  margin: 0 0 1.5rem;
}

.page-about p{
  line-height: 1.75;
}

.page-about .about-img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about figure{
  margin: 0;
}

.page-about figcaption{
  font-family: var(--font-data);
  font-size: 0.85rem;
  color: var(--about-muted);
  margin-top: 0.75rem;
  padding-left: 1rem;
  border-left: 2px solid var(--about-orange);
}

.page-about .about-hero{
  position: relative;
  padding: 2rem 0 3.5rem;
  overflow: hidden;
}

.page-about .about-hero::after{
  content: "";
  position: absolute;
  right: -14vw;
  top: -10%;
  width: 46vw;
  height: 130%;
  background: linear-gradient(115deg, transparent 0 22%, rgba(45, 108, 223, 0.14) 22% 55%, transparent 55% 100%);
  pointer-events: none;
  transform: rotate(6deg);
}

.page-about .about-hero .breadcrumb{
  position: relative;
  z-index: 1;
  margin-bottom: 2.5rem;
}

.page-about .about-hero__grid{
  position: relative;
  z-index: 1;
  display: grid;
  gap: 2.2rem;
}

.page-about .about-hero__content{
  max-width: 60ch;
}

.page-about .about-hero__eyebrow{
  font-family: var(--font-data);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--about-orange);
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.page-about .about-hero__lead{
  font-size: 1.2rem;
  color: var(--about-muted);
  max-width: 56ch;
  margin-bottom: 1.5rem;
}

.page-about .about-hero__meta{
  font-family: var(--font-data);
  font-size: 0.95rem;
  color: var(--about-ink);
  border-left: 4px solid var(--about-neon);
  padding-left: 0.75rem;
}

.page-about .about-hero__aside{
  position: relative;
  background: var(--about-navy);
  color: var(--about-paper);
  padding: 2.2rem 1.8rem;
  transform: rotate(-1.2deg);
  box-shadow: 12px 12px 0 var(--about-blue);
  border-left: 8px solid var(--about-neon);
  margin-bottom: 1.5rem;
}

.page-about .about-hero__num{
  font-family: var(--font-data);
  font-weight: 800;
  font-size: clamp(3.2rem, 10vw, 5rem);
  line-height: 1;
  margin: 0 0 0.5rem;
  color: var(--about-neon);
}

.page-about .about-hero__num span{
  font-size: 0.45em;
  vertical-align: baseline;
}

.page-about .about-hero__label{
  font-family: var(--font-data);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  margin: 0 0 0.75rem;
  color: var(--about-paper);
}

.page-about .about-hero__note{
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.72);
  margin: 0;
}

.page-about .about-origin__grid{
  display: grid;
  gap: 2rem;
  margin-top: 2rem;
}

.page-about .about-origin__text p{
  margin: 0 0 1rem;
}

.page-about .about-origin__text p:first-child::first-letter{
  font-family: var(--font-data);
  font-weight: 800;
  font-size: 2.5em;
  float: left;
  line-height: 0.9;
  padding-right: 0.3rem;
  color: var(--about-orange);
}

.page-about .about-origin__figure{
  position: relative;
}

.page-about .about-origin__figure::before{
  content: "";
  position: absolute;
  inset: 16px -16px -16px 16px;
  background: var(--about-blue);
  opacity: 0.18;
  z-index: 0;
  transform: rotate(1.5deg);
}

.page-about .about-origin__figure img{
  position: relative;
  z-index: 1;
}

.page-about .about-milestones{
  border-top: 6px solid var(--about-orange);
}

.page-about .about-timeline{
  list-style: none;
  margin: 2.5rem 0 0;
  padding: 0;
  position: relative;
}

.page-about .about-timeline__item{
  position: relative;
  padding-left: 2rem;
  margin-bottom: 1.25rem;
}

.page-about .about-timeline__item:not(:last-child){
  border-left: 3px solid var(--about-ink);
}

.page-about .about-timeline__item::before{
  content: "";
  position: absolute;
  left: -7px;
  top: 1.5rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--about-paper);
  border: 4px solid var(--about-ink);
}

.page-about .about-timeline__item:nth-child(1)::before{
  border-color: var(--about-orange);
}

.page-about .about-timeline__item:nth-child(2)::before{
  border-color: var(--about-blue);
}

.page-about .about-timeline__item:nth-child(3)::before{
  border-color: var(--about-purple);
}

.page-about .about-timeline__item:nth-child(4)::before{
  border-color: var(--about-neon);
}

.page-about .about-timeline__details{
  background: var(--about-panel);
  border-left: 6px solid var(--about-ink);
  padding: 1rem 1rem 0.9rem;
}

.page-about .about-timeline__details[open]{
  padding-bottom: 1.25rem;
}

.page-about .about-timeline__details summary{
  position: relative;
  padding-right: 2.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 0.9rem;
  cursor: pointer;
  list-style: none;
}

.page-about .about-timeline__details summary::-webkit-details-marker{
  display: none;
}

.page-about .about-timeline__version{
  font-family: var(--font-data);
  font-weight: 800;
  color: var(--about-ink);
  padding: 0.3rem 0.6rem;
  border-radius: 4px;
  letter-spacing: 0.02em;
  background: var(--about-ink);
  color: var(--about-paper);
}

.page-about .about-timeline__item:nth-child(1) .about-timeline__version{
  background: var(--about-orange);
}

.page-about .about-timeline__item:nth-child(2) .about-timeline__version{
  background: var(--about-blue);
}

.page-about .about-timeline__item:nth-child(3) .about-timeline__version{
  background: var(--about-purple);
}

.page-about .about-timeline__item:nth-child(4) .about-timeline__version{
  background: var(--about-neon);
}

.page-about .about-timeline__title{
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 1.25rem;
  line-height: 1.2;
}

.page-about .about-timeline__summary{
  flex-basis: 100%;
  color: var(--about-muted);
  font-size: 0.95rem;
}

.page-about .about-timeline__toggle{
  position: absolute;
  right: 0.5rem;
  top: 0.35rem;
  font-family: var(--font-data);
  font-weight: 800;
  font-size: 1.5rem;
  line-height: 1;
  transition: transform 0.2s ease;
}

.page-about .about-timeline__details[open] .about-timeline__toggle{
  transform: rotate(45deg);
}

.page-about .about-timeline__details-body{
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--about-muted);
}

.page-about .about-timeline__details-body p{
  margin: 0;
  font-size: 0.95rem;
}

.page-about .about-capability{
  border-top: 6px solid var(--about-blue);
  background: var(--about-navy);
  color: #f0f4fa;
}

.page-about .about-capability .section-heading__title{
  color: var(--about-paper);
}

.page-about .about-capability .section-heading__desc{
  color: rgba(255, 255, 255, 0.72);
}

.page-about .about-capability__grid{
  display: grid;
  gap: 2rem;
}

.page-about .about-capability__lead{
  display: grid;
  gap: 1.25rem;
}

.page-about .about-capability__lead p{
  font-size: 1.15rem;
  margin: 0;
}

.page-about .about-capability__features{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.page-about .about-capability__features li{
  position: relative;
  padding-left: 1.6rem;
  color: rgba(255, 255, 255, 0.86);
}

.page-about .about-capability__features li::before{
  content: "▶";
  position: absolute;
  left: 0;
  color: var(--about-neon);
  font-size: 0.8em;
  line-height: 1.8;
}

.page-about .about-capability__stats .data-pair{
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 1.1rem 0.9rem;
}

.page-about .about-capability__stats .data-value{
  display: block;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  color: var(--about-neon);
}

.page-about .about-capability__stats .data-label{
  display: block;
  margin-top: 0.25rem;
  color: rgba(255, 255, 255, 0.75);
}

.page-about .about-capability__visual{
  display: grid;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.page-about .about-capability__visual figure{
  position: relative;
}

.page-about .about-capability__visual img{
  border: 1px solid rgba(255, 255, 255, 0.2);
  transform: rotate(-1deg);
}

.page-about .about-capability__tape{
  align-self: center;
}

.page-about .about-capability .data-tape{
  border-left: 6px solid var(--about-neon);
  background: rgba(0, 0, 0, 0.28);
  color: var(--about-paper);
}

.page-about .about-capability .data-tape__item{
  color: rgba(255, 255, 255, 0.82);
}

.page-about .about-capability__note{
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.56);
  margin: 1rem 0 0;
}

.page-about .about-honor{
  border-top: 6px solid var(--about-purple);
}

.page-about .about-honor__grid{
  display: grid;
  gap: 2.5rem;
  margin-top: 2rem;
}

.page-about .about-honor__cards{
  display: grid;
  gap: 1rem;
}

.page-about .about-honor__card{
  margin: 0;
}

.page-about .about-honor__card .tag{
  margin-bottom: 0.75rem;
}

.page-about .about-honor__card h3{
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
}

.page-about .about-honor__card p{
  margin: 0;
  font-size: 0.95rem;
}

.page-about .about-honor__figure{
  position: relative;
}

.page-about .about-honor__figure::after{
  content: "档案夹";
  position: absolute;
  left: -8px;
  top: -8px;
  background: var(--about-neon);
  color: var(--about-ink);
  font-family: var(--font-data);
  font-weight: 800;
  padding: 0.15rem 0.6rem;
  transform: rotate(-2deg);
}

.page-about .about-team{
  border-top: 6px solid var(--about-neon);
}

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

.page-about .about-team__card{
  margin: 0;
  padding: 1.25rem;
}

.page-about .about-team__card h3{
  margin: 0.75rem 0 0.5rem;
  font-size: 1.15rem;
}

.page-about .about-team__card p{
  margin: 0;
  font-size: 0.95rem;
  color: var(--about-muted);
}

.page-about .about-team__principle{
  margin-top: 2.5rem;
  padding: 1.5rem;
  background: var(--about-ink);
  color: var(--about-paper);
  border-left: 8px solid var(--about-neon);
  transform: rotate(-0.5deg);
}

.page-about .about-team__principle-text{
  margin: 0;
  font-size: 1.1rem;
}

.page-about .about-cta__panel{
  background: var(--about-panel);
  border: 1px solid var(--about-ink);
  border-left: 10px solid var(--about-orange);
  padding: 2rem;
  box-shadow: 14px 14px 0 rgba(26, 26, 26, 0.08);
}

.page-about .about-cta__panel h2{
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  margin: 0 0 1rem;
}

.page-about .about-cta__panel p{
  color: var(--about-muted);
  margin: 0 0 1.5rem;
  max-width: 60ch;
}

.page-about .about-cta__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

@media (min-width: 640px){
  .page-about .about-honor__cards{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 768px){
  .page-about .about-hero{
    padding: 4rem 0 5rem;
  }

  .page-about .about-hero__grid{
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: center;
  }

  .page-about .about-hero__aside{
    justify-self: end;
    width: 85%;
    transform: rotate(1.2deg);
  }
}

@media (min-width: 900px){
  .page-about .about-origin__grid{
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
    gap: 3.5rem;
  }

  .page-about .about-capability__grid{
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
  }

  .page-about .about-capability__visual{
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: center;
  }

  .page-about .about-honor__grid{
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }

  .page-about .about-team__grid{
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-cta__panel{
    padding: 2.5rem 3rem;
  }
}