.page-about {
  --about-orange: #ff6b35;
  --about-green: #39ff14;
  --about-blue: #0a192f;
  --about-card-bg: #112240;
  --about-line: #233554;
  --about-line-soft: rgba(230, 241, 255, 0.14);
  --about-text-bright: #e6f1ff;
  --about-text-muted: #8892b0;
  --about-text-faint: #a8b2d1;
  --about-font-display: "Archivo Black", "Arial Black", "PingFang SC", "Microsoft YaHei", sans-serif;
  --about-font-body: "Inter", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  --about-font-mono: "Roboto Mono", "SFMono-Regular", "Cascadia Mono", Consolas, monospace;
  --about-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  --about-radius: 6px;
  --about-space: 1rem;
  --about-transition: 0.3s ease;
  --about-content-w: 1240px;
  background-color: var(--about-blue);
  color: var(--about-text-bright);
  font-family: var(--about-font-body);
  overflow-x: hidden;
  padding-bottom: clamp(4rem, 8vw, 7rem);
}

.page-about .container {
  width: min(100% - 2rem, var(--about-content-w));
  margin-inline: auto;
}

.page-about .kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--about-font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--about-text-muted);
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.page-about .kicker::before {
  content: "//";
  color: var(--about-orange);
  font-weight: 700;
}

.page-about .section-title {
  font-family: var(--about-font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--about-text-bright);
  margin: 0 0 1.25rem;
  text-transform: capitalize;
}

.page-about .section-desc {
  color: var(--about-text-muted);
  font-size: 1rem;
  line-height: 1.7;
  max-width: 58ch;
}

.page-about .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1.25rem 1rem 0;
  font-family: var(--about-font-mono);
  font-size: 0.8rem;
  color: var(--about-text-muted);
  position: relative;
  z-index: 2;
}

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

.page-about .breadcrumb a:hover {
  color: var(--about-orange);
}

.page-about .breadcrumb-sep {
  color: var(--about-line);
}

.page-about .breadcrumb-current {
  color: var(--about-orange);
}

.page-about .about-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding-block: 2.5rem 3.5rem;
  align-items: center;
}

.page-about .hero-copy {
  position: relative;
}

.page-about .hero-title {
  font-family: var(--about-font-display);
  font-size: clamp(3rem, 9vw, 6rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  margin: 0 0 2rem;
  text-transform: uppercase;
  color: var(--about-text-bright);
}

.page-about .hero-title::after {
  content: "";
  display: block;
  width: 4.5rem;
  height: 4px;
  background: linear-gradient(90deg, var(--about-orange), var(--about-green));
  margin-top: 1.5rem;
}

.page-about .hero-statement {
  position: relative;
  border-left: 2px solid var(--about-orange);
  padding-left: 1.5rem;
  max-width: 620px;
}

.page-about .hero-statement p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--about-text-faint);
  margin: 0 0 1rem;
}

.page-about .hero-statement p:first-of-type {
  color: var(--about-text-bright);
  font-weight: 500;
}

.page-about .hero-mark {
  position: absolute;
  right: 0.25rem;
  bottom: -2.25rem;
  font-family: var(--about-font-mono);
  font-size: 0.7rem;
  color: var(--about-text-muted);
  letter-spacing: 0.2em;
  transform: rotate(90deg);
  transform-origin: right bottom;
  opacity: 0.5;
}

.page-about .hero-figure-wrap {
  position: relative;
}

.page-about .hero-figure {
  margin: 0;
  border-radius: var(--about-radius);
  overflow: hidden;
  border: 1px solid var(--about-line);
  box-shadow: var(--about-shadow);
  background: linear-gradient(135deg, #112240, #0a192f);
  position: relative;
}

.page-about .hero-figure::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 12px,
    rgba(230, 241, 255, 0.03) 12px,
    rgba(230, 241, 255, 0.03) 13px
  );
  z-index: 1;
  pointer-events: none;
}

.page-about .hero-figure img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  aspect-ratio: 1 / 1;
}

.page-about .caption-line {
  font-family: var(--about-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--about-text-muted);
  text-transform: uppercase;
}

.page-about .caption-line::after {
  content: "";
  display: inline-block;
  width: 2.5rem;
  height: 1px;
  background: var(--about-green);
  margin-left: 0.75rem;
  vertical-align: middle;
}

.page-about .figure-caption {
  display: inline-block;
  margin-top: 1rem;
}

.page-about .about-metrics {
  background-color: var(--about-card-bg);
  border-top: 1px solid var(--about-line);
  border-bottom: 1px solid var(--about-line);
  padding-block: 3rem 3.5rem;
  position: relative;
}

.page-about .about-metrics::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--about-orange), transparent 70%);
}

.page-about .metrics-intro {
  max-width: 60ch;
  color: var(--about-text-muted);
  font-size: 1rem;
  line-height: 1.75;
  margin: 0 0 2rem;
}

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

.page-about .metric-card {
  background: rgba(230, 241, 255, 0.08);
  border: 1px solid var(--about-line);
  border-radius: var(--about-radius);
  padding: 1.5rem 1.25rem;
  position: relative;
  transition: transform var(--about-transition), border-color var(--about-transition), box-shadow var(--about-transition);
}

.page-about .metric-card:hover {
  transform: translateY(-4px);
  border-color: var(--about-green);
  box-shadow: var(--about-shadow);
}

.page-about .metric-card-accent {
  border-left: 3px solid var(--about-orange);
}

.page-about .metric-label {
  font-family: var(--about-font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--about-text-muted);
  text-transform: uppercase;
  margin: 0 0 0.75rem;
}

.page-about .metric-num {
  font-family: var(--about-font-mono);
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 700;
  color: var(--about-text-bright);
  line-height: 1.1;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}

.page-about .metric-card-accent .metric-num {
  color: var(--about-orange);
}

.page-about .metric-num .metric-unit {
  font-size: 1.2rem;
  color: var(--about-green);
  margin-left: 0.1rem;
  vertical-align: top;
}

.page-about .metric-note {
  font-size: 0.875rem;
  color: var(--about-text-muted);
  line-height: 1.6;
  margin: 0;
}

.page-about .metric-card-wide {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 1.25rem;
}

.page-about .metric-card-wide .metric-label {
  margin-bottom: 0;
}

.page-about .metric-card-wide .metric-num {
  margin-bottom: 0;
  font-size: 2rem;
  text-align: right;
  margin-left: auto;
  margin-right: 1rem;
}

.page-about .metric-card-wide .metric-note {
  max-width: 30ch;
  text-align: right;
}

.page-about .about-journey {
  position: relative;
  padding-block: 4rem 3rem;
}

.page-about .journey-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.3;
  overflow: hidden;
}

.page-about .journey-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--about-blue) 0%, transparent 30%, transparent 70%, var(--about-blue) 100%);
}

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

.page-about .journey-head {
  position: relative;
  z-index: 1;
}

.page-about .timeline-list {
  list-style: none;
  margin: 2.5rem 0 0;
  padding: 0;
  position: relative;
  z-index: 1;
  display: grid;
  gap: 0.75rem;
}

.page-about .timeline-list::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--about-orange), var(--about-green) 60%, var(--about-line));
  opacity: 0.8;
}

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

.page-about .timeline-btn {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "phase more"
    "summary more";
  gap: 0.25rem 1rem;
  width: 100%;
  background: rgba(230, 241, 255, 0.08);
  border: 1px solid var(--about-line);
  border-left: 2px solid var(--about-orange);
  border-radius: var(--about-radius);
  padding: 1.25rem 1.125rem;
  text-align: left;
  color: var(--about-text-bright);
  cursor: pointer;
  transition: border-color var(--about-transition), background var(--about-transition), box-shadow var(--about-transition);
  position: relative;
  touch-action: manipulation;
}

.page-about .timeline-btn:hover {
  border-color: var(--about-orange);
  border-left-color: var(--about-green);
  background: rgba(230, 241, 255, 0.12);
  box-shadow: var(--about-shadow);
}

.page-about .timeline-btn[aria-expanded="true"] {
  border-left-color: var(--about-green);
  background: rgba(57, 255, 20, 0.1);
}

.page-about .timeline-dot {
  position: absolute;
  left: -1.45rem;
  top: 1.6rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--about-green);
  border: 2px solid var(--about-blue);
  box-shadow: 0 0 8px rgba(57, 255, 20, 0.6);
  z-index: 1;
}

.page-about .timeline-phase {
  grid-area: phase;
  font-family: var(--about-font-display);
  font-size: 1rem;
  color: var(--about-text-bright);
  letter-spacing: 0.02em;
}

.page-about .timeline-summary {
  grid-area: summary;
  font-size: 0.8rem;
  color: var(--about-text-muted);
  line-height: 1.5;
}

.page-about .timeline-more {
  grid-area: more;
  align-self: center;
  font-family: var(--about-font-mono);
  font-size: 1.2rem;
  color: var(--about-orange);
  transition: transform var(--about-transition);
}

.page-about .timeline-btn[aria-expanded="true"] .timeline-more {
  transform: rotate(45deg);
  color: var(--about-green);
}

.page-about .timeline-detail {
  display: none;
  color: var(--about-text-faint);
  font-size: 0.875rem;
  line-height: 1.75;
  padding: 0.5rem 0.5rem 0 0;
}

.page-about .timeline-btn[aria-expanded="true"] + .timeline-detail {
  display: block;
}

.page-about .about-promise {
  padding-block: 3rem 4rem;
  border-top: 1px solid var(--about-line);
  background: linear-gradient(135deg, rgba(17, 34, 64, 0.6), transparent 80%);
}

.page-about .promise-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

.page-about .promise-copy p {
  color: var(--about-text-faint);
  line-height: 1.8;
  font-size: 0.95rem;
  margin: 0 0 1.25rem;
}

.page-about .promise-copy p:first-of-type {
  color: var(--about-text-bright);
  font-weight: 500;
}

.page-about .promise-quote {
  margin: 1.5rem 0 0;
  padding: 1.5rem 1.25rem;
  border: 1px solid var(--about-line);
  border-left: 3px solid var(--about-green);
  background: rgba(57, 255, 20, 0.08);
  border-radius: var(--about-radius);
  transition: box-shadow var(--about-transition);
}

.page-about .promise-quote:hover {
  box-shadow: var(--about-shadow);
}

.page-about .promise-quote p {
  margin: 0;
  color: var(--about-text-bright);
  font-size: 0.9rem;
  line-height: 1.8;
}

.page-about .promise-figure-wrap {
  position: relative;
  max-width: 380px;
}

.page-about .promise-figure {
  margin: 0;
  border-radius: var(--about-radius);
  overflow: hidden;
  border: 1px solid var(--about-line);
  box-shadow: var(--about-shadow);
  position: relative;
}

.page-about .promise-figure::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 10px,
    rgba(230, 241, 255, 0.03) 10px,
    rgba(230, 241, 255, 0.03) 11px
  );
  z-index: 1;
  pointer-events: none;
}

.page-about .promise-figure img {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

.page-about .caption-mobile {
  margin-top: 0.75rem;
  display: inline-block;
}

.page-about .about-team {
  padding-block: 3rem 0;
}

.page-about .about-team .container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  border-top: 1px solid var(--about-line);
  padding-top: 3rem;
}

.page-about .team-inner p {
  color: var(--about-text-faint);
  line-height: 1.8;
  font-size: 0.95rem;
  margin: 0 0 1.25rem;
}

.page-about .team-inner p:first-of-type {
  color: var(--about-text-bright);
}

.page-about .team-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-decoration: none;
  font-family: var(--about-font-monospace);
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--about-radius);
  padding: 0.85rem 1.5rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--about-transition);
  margin-top: 0.5rem;
}

.page-about .btn-primary {
  background: var(--about-orange);
  color: var(--about-blue);
  border-color: var(--about-orange);
}

.page-about .btn-primary:hover {
  background: transparent;
  color: var(--about-orange);
}

.page-about .team-aside {
  background: rgba(230, 241, 255, 0.08);
  border: 1px solid var(--about-line);
  border-radius: var(--about-radius);
  padding: 1.5rem 1.25rem;
  align-self: start;
}

.page-about .aside-label {
  font-family: var(--about-font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--about-green);
  margin: 0 0 1.25rem;
}

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

.page-about .topic-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1rem 0.75rem;
  border-bottom: 1px solid var(--about-line);
  transition: background var(--about-transition), border-left var(--about-transition);
  border-left: 2px solid transparent;
}

.page-about .topic-item:last-child {
  border-bottom: none;
}

.page-about .topic-item:hover {
  background: rgba(255, 107, 53, 0.14);
  border-left-color: var(--about-orange);
}

.page-about .topic-item-title {
  color: var(--about-text-bright);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: color var(--about-transition);
}

.page-about .topic-item-title:hover {
  color: var(--about-orange);
}

.page-about .topic-item-extra {
  font-size: 0.8rem;
  color: var(--about-text-muted);
  font-family: var(--about-font-mono);
  line-height: 1.5;
}

@media (min-width: 768px) {
  .page-about .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .metric-card-wide {
    grid-column: 1 / -1;
  }

  .page-about .timeline-item {
    padding-left: 2.5rem;
  }

  .page-about .timeline-list::before {
    left: 8px;
  }

  .page-about .timeline-dot {
    left: -1.35rem;
  }

  .page-about .about-team .container {
    grid-template-columns: 1fr 320px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 3rem;
    padding-block: 4rem 5rem;
  }

  .page-about .hero-title {
    font-size: clamp(4rem, 7vw, 6rem);
  }

  .page-about .hero-statement {
    padding-left: 2rem;
  }

  .page-about .hero-mark {
    right: -1.5rem;
  }

  .page-about .metrics-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }

  .page-about .metric-card-wide {
    grid-column: span 1;
  }

  .page-about .metric-card-wide {
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
  }

  .page-about .metric-card-wide .metric-num {
    font-size: clamp(2.2rem, 3vw, 2.8rem);
    margin-left: 0;
    margin-right: 0;
  }

  .page-about .metric-card-wide .metric-note {
    text-align: left;
  }

  .page-about .timeline-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }

  .page-about .timeline-list::before {
    left: 8px;
    width: 2px;
  }

  .page-about .promise-grid {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: start;
  }

  .page-about .promise-copy {
    padding-top: 1rem;
  }

  .page-about .promise-figure-wrap {
    order: 2;
  }

  .page-about .about-team .container {
    grid-template-columns: 1fr 360px;
    gap: 4rem;
  }
}

@media (min-width: 1280px) {
  .page-about .about-hero {
    gap: 5rem;
  }

  .page-about .timeline-list {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .metrics-intro {
    font-size: 1.125rem;
  }
}

.page-about {
  --about-font-monospace: inherit;
}