.page-about {
  --about-accent: #FF4D00;
  --about-data: #00A3FF;
  --about-live: #39FF14;
  --about-text-muted: #9AA7C0;
  --about-border: #2A3451;
  --about-panel: #1A233A;
  --about-ease: cubic-bezier(.22,1,.36,1);
  --about-content: 1240px;
  --about-radius: 24px;
  --about-pill: 999px;
  --about-shadow: 0 18px 48px rgba(0,0,0,.32);
  background: linear-gradient(180deg,#0A0E1A 0%,#101828 100%);
  color: #F5F7FF;
  font-family: 'Noto Sans SC','Microsoft YaHei','PingFang SC',sans-serif;
  line-height: 1.8;
  overflow-x: hidden;
}

.page-about .container {
  max-width: var(--about-content);
  margin: 0 auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

.page-about a {
  color: var(--about-data);
  text-decoration: none;
}

.page-about .breadcrumbs {
  display: flex;
  gap: .5rem;
  font-size: .8125rem;
  color: var(--about-text-muted);
  margin-bottom: 1.75rem;
}

.page-about .breadcrumbs__item {
  position: relative;
  padding-right: 1rem;
}

.page-about .breadcrumbs__item:not(:last-child)::after {
  content: "/";
  position: absolute;
  right: .125rem;
  color: var(--about-border);
}

.page-about .eyebrow {
  font-family: 'Roboto Mono','SF Mono',Consolas,monospace;
  font-size: .75rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--about-data);
  margin-bottom: 1rem;
}

.page-about .media-frame {
  border-radius: var(--about-radius);
  overflow: hidden;
  background: var(--about-panel);
  border: 1px solid var(--about-border);
}

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

.page-about .data-chip {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .45rem .9rem;
  border-radius: var(--about-pill);
  background: rgba(26,35,58,.7);
  border: 1px solid var(--about-border);
  font-family: 'Roboto Mono','SF Mono',Consolas,monospace;
  font-size: .75rem;
  color: var(--about-text-muted);
  white-space: nowrap;
}

.page-about .trust-line {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 2rem;
}

.page-about .about-hero {
  position: relative;
  padding-top: 3rem;
  padding-bottom: 4rem;
  border-bottom: 1px solid var(--about-border);
  overflow: hidden;
}

.page-about .about-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
  position: relative;
  z-index: 2;
}

.page-about .about-hero__title {
  font-family: 'DIN Condensed','Barlow Condensed','Noto Sans SC',sans-serif;
  font-size: clamp(2.75rem,7vw,5.5rem);
  font-weight: 800;
  line-height: 1.05;
  margin: 1rem 0 1.25rem;
  letter-spacing: .01em;
}

.page-about .about-hero__lede {
  font-size: clamp(1.1rem,2vw,1.35rem);
  line-height: 1.8;
  color: var(--about-text-muted);
  max-width: 68ch;
}

.page-about .about-hero__visual {
  position: relative;
  height: 280px;
  border-radius: var(--about-radius);
  background: linear-gradient(135deg,rgba(26,35,58,.6) 0%,rgba(16,24,40,.9) 100%);
  border: 1px solid var(--about-border);
}

.page-about .about-hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,163,255,.12) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,163,255,.12) 1px,transparent 1px);
  background-size: 32px 32px;
  border-radius: var(--about-radius);
}

.page-about .about-hero__orbit {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255,77,0,.35);
}

.page-about .about-hero__orbit--one {
  width: 180px;
  height: 180px;
  top: 30px;
  right: 60px;
}

.page-about .about-hero__orbit--two {
  width: 90px;
  height: 90px;
  top: 80px;
  right: 120px;
  border-color: rgba(0,163,255,.5);
}

.page-about .about-hero__pitch {
  position: absolute;
  left: 0;
  bottom: 40px;
  width: 140px;
  height: 70px;
  background: var(--about-accent);
  clip-path: polygon(0 0,100% 0,85% 100%,0 100%);
  opacity: .8;
}

.page-about .about-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  padding-top: 2rem;
  padding-bottom: 4rem;
}

.page-about .about-toc {
  display: none;
  padding: 2rem 1.5rem;
  background: rgba(26,35,58,.4);
  border: 1px solid var(--about-border);
  border-radius: var(--about-radius);
  align-self: start;
  margin-bottom: 2.5rem;
}

.page-about .about-toc__label {
  font-family: 'Roboto Mono','SF Mono',Consolas,monospace;
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--about-text-muted);
  margin-bottom: 1.25rem;
}

.page-about .about-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .5rem;
}

.page-about .about-toc__list a {
  display: block;
  padding: .5rem .75rem;
  border-radius: var(--about-pill);
  color: var(--about-text-muted);
  font-size: .875rem;
  transition: background .25s var(--about-ease),color .25s var(--about-ease);
}

.page-about .about-toc__list a:hover {
  background: rgba(0,163,255,.12);
  color: var(--about-data);
}

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

.page-about .about-toc .link-more {
  font-size: .8125rem;
  color: var(--about-data);
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  position: relative;
  transition: gap .3s var(--about-ease);
}

.page-about .link-more::after {
  content: "→";
  font-family: 'Roboto Mono',monospace;
  font-size: .875rem;
  transition: transform .3s var(--about-ease);
}

.page-about .link-more:hover::after {
  transform: translateX(4px);
}

.page-about .about-content {
  min-width: 0;
}

.page-about .about-section {
  padding-top: 3.5rem;
  border-top: 1px solid var(--about-border);
  scroll-margin-top: 6rem;
}

.page-about .about-section:first-of-type {
  border-top: none;
}

.page-about .about-section__title {
  font-family: 'DIN Condensed','Barlow Condensed','Noto Sans SC',sans-serif;
  font-size: clamp(1.75rem,3.5vw,2.5rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

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

.page-about .about-section__desc {
  color: var(--about-text-muted);
  margin-bottom: 2rem;
  max-width: 68ch;
}

.page-about .about-section p {
  max-width: 68ch;
}

.page-about .about-figure {
  margin: 2.5rem 0;
}

.page-about .about-intro {
  margin-top: 0;
  padding-top: 1rem;
}

.page-about .timeline {
  position: relative;
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  gap: 2rem;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg,rgba(255,77,0,.7) 0%,rgba(0,163,255,.5) 100%);
  border-radius: 2px;
}

.page-about .timeline__item {
  position: relative;
  padding-left: 2.75rem;
}

.page-about .timeline__node {
  position: absolute;
  left: 0;
  top: .5rem;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--about-accent);
  box-shadow: 0 0 0 4px rgba(255,77,0,.18), 0 0 20px rgba(255,77,0,.35);
}

.page-about .timeline__year {
  font-family: 'Roboto Mono','SF Mono',Consolas,monospace;
  font-size: 1rem;
  font-weight: 600;
  color: var(--about-accent);
  margin-bottom: .5rem;
}

.page-about .timeline__body p {
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--about-text-muted);
  margin: 0;
}

.page-about .cert-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-about .cert-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  padding: 1.25rem;
  background: rgba(26,35,58,.5);
  border: 1px solid var(--about-border);
  border-radius: var(--about-radius);
  transition: transform .3s var(--about-ease), border-color .3s var(--about-ease), box-shadow .3s var(--about-ease);
}

.page-about .cert-item:hover {
  transform: translateY(-3px);
  border-color: rgba(0,163,255,.4);
  box-shadow: var(--about-shadow);
}

.page-about .cert-item__badge {
  font-family: 'Roboto Mono','SF Mono',Consolas,monospace;
  font-size: .75rem;
  color: var(--about-data);
  background: rgba(0,163,255,.1);
  border: 1px solid rgba(0,163,255,.35);
  border-radius: var(--about-pill);
  padding: .35rem .7rem;
  height: max-content;
  white-space: nowrap;
}

.page-about .cert-item__name {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: .35rem;
}

.page-about .cert-item p {
  margin: 0;
  font-size: .875rem;
  color: var(--about-text-muted);
}

.page-about .eco-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 2rem;
}

.page-about .eco-card {
  padding: 1.5rem;
  background: rgba(16,24,40,.6);
  border: 1px solid var(--about-border);
  border-radius: var(--about-radius);
  transition: transform .3s var(--about-ease), border-color .3s var(--about-ease);
}

.page-about .eco-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255,77,0,.4);
}

.page-about .eco-card__title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: .75rem;
  position: relative;
  padding-bottom: .5rem;
}

.page-about .eco-card__title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 32px;
  height: 3px;
  background: var(--about-accent);
  border-radius: 3px;
}

.page-about .eco-card p {
  font-size: .875rem;
  color: var(--about-text-muted);
  line-height: 1.75;
  margin: 0;
}

.page-about .about-team p + p {
  margin-top: 1.5rem;
}

.page-about .about-team a {
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.5rem;
}

.page-about .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .9rem 1.75rem;
  border-radius: var(--about-pill);
  font-size: .9375rem;
  font-weight: 600;
  text-decoration: none;
  transition: transform .3s var(--about-ease), box-shadow .3s var(--about-ease), background .3s var(--about-ease);
  cursor: pointer;
}

.page-about .btn:hover {
  transform: translateY(-2px);
}

.page-about .btn--primary {
  background: var(--about-accent);
  color: #fff;
  border: 1px solid transparent;
  box-shadow: 0 8px 24px rgba(255,77,0,.28);
}

.page-about .btn--primary:hover {
  box-shadow: 0 12px 32px rgba(255,77,0,.4);
}

.page-about .btn--ghost {
  background: transparent;
  color: var(--about-data);
  border: 1px solid rgba(0,163,255,.5);
}

.page-about .btn--ghost:hover {
  background: rgba(0,163,255,.12);
}

.page-about .link-more {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .875rem;
  color: var(--about-data);
}

.page-about [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s var(--about-ease), transform .7s var(--about-ease);
}

.page-about [data-reveal].is-inview {
  opacity: 1;
  transform: translateY(0);
}

.page-about .about-hero[data-reveal] {
  transition-delay: .1s;
}

@media (prefers-reduced-motion: reduce) {
  .page-about [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .page-about .cert-item,
  .page-about .eco-card,
  .page-about .btn {
    transition: none;
  }
}

@media (min-width: 640px) {
  .page-about .container {
    padding-left: 2rem;
    padding-right: 2rem;
  }
  .page-about .about-hero {
    padding-top: 4.5rem;
    padding-bottom: 5rem;
  }
  .page-about .about-hero__inner {
    gap: 3rem;
  }
  .page-about .about-hero__visual {
    height: 360px;
  }
  .page-about .about-layout {
    padding-top: 3rem;
  }
  .page-about .about-section {
    padding-top: 4.5rem;
  }
  .page-about .cert-item {
    grid-template-columns: auto 1fr;
    padding: 1.5rem;
  }
  .page-about .eco-grid {
    grid-template-columns: repeat(2,1fr);
  }
  .page-about .eco-card:last-child {
    grid-column: 1 / -1;
  }
  .page-about .timeline {
    gap: 2.5rem;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero {
    padding-top: 5.5rem;
    padding-bottom: 6rem;
  }
  .page-about .about-hero__inner {
    grid-template-columns: 1.1fr .9fr;
    gap: 4rem;
  }
  .page-about .about-hero__title {
    font-size: clamp(3.5rem,6vw,5.5rem);
  }
  .page-about .about-hero__visual {
    height: 420px;
  }
  .page-about .about-layout {
    grid-template-columns: 280px 1fr;
    gap: 3.5rem;
    padding-top: 4rem;
    padding-bottom: 6rem;
  }
  .page-about .about-toc {
    display: block;
    position: sticky;
    top: calc(var(--header-h) + 2rem);
  }
  .page-about .about-toc__list a {
    padding: .6rem .9rem;
  }
  .page-about .about-content {
    min-width: 0;
  }
  .page-about .about-intro {
    padding-top: 0;
  }
  .page-about .eco-grid {
    grid-template-columns: repeat(3,1fr);
  }
  .page-about .eco-card:last-child {
    grid-column: auto;
  }
  .page-about .about-cta {
    gap: 1.25rem;
  }
}

@media (min-width: 1280px) {
  .page-about .about-layout {
    grid-template-columns: 320px 1fr;
    gap: 4rem;
  }
}

@media (max-width: 480px) {
  .page-about .about-hero__title {
    font-size: 2.25rem;
  }
  .page-about .about-hero__lede {
    font-size: 1rem;
  }
  .page-about .trust-line {
    flex-direction: column;
    align-items: flex-start;
  }
  .page-about .data-chip {
    white-space: normal;
    max-width: 100%;
  }
  .page-about .cert-item {
    grid-template-columns: 1fr;
    gap: .75rem;
  }
  .page-about .about-cta {
    flex-direction: column;
    width: 100%;
  }
  .page-about .btn {
    width: 100%;
  }
  .page-about .timeline::before {
    left: 7px;
  }
  .page-about .timeline__node {
    width: 16px;
    height: 16px;
  }
  .page-about .timeline__item {
    padding-left: 2.25rem;
  }
}