.page-about {
  --about-green: #00FF88;
  --about-orange: #FF8C00;
  --about-cyan: #00D8FF;
  --about-bg-2: #11243A;
  --about-line: #1E3A4F;
  --about-text-sub: #8AA0B0;
  position: relative;
  overflow-x: hidden;
  background: var(--bg-primary, #0B1D2E);
  color: var(--text-primary, #EAF2F8);
  font-family: var(--font-body, Inter, "Noto Sans SC", sans-serif);
}

.page-about .about-bg-grid {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 340px;
  background-image:
    linear-gradient(var(--about-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-line) 1px, transparent 1px);
  background-size: 56px 56px;
  opacity: 0.35;
  pointer-events: none;
  z-index: 0;
}

.page-about .about-breadcrumbs {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
  max-width: var(--content-w, 1120px);
  margin: 0 auto;
  padding: 1rem 1.25rem;
  font-size: 0.875rem;
  color: var(--about-text-sub);
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-breadcrumbs a {
  color: var(--about-text-sub);
  text-decoration: none;
  transition: color 0.3s var(--ease, ease);
}

.page-about .about-breadcrumbs a:hover {
  color: var(--about-green);
}

.page-about .about-breadcrumbs .breadcrumbs-sep {
  color: var(--about-line);
  font-family: var(--font-mono, monospace);
}

.page-about .about-hero {
  position: relative;
  z-index: 1;
  max-width: var(--content-w, 1120px);
  margin: 0 auto;
  padding: 3.5rem 1.25rem 0;
}

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

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

.page-about .about-kicker {
  display: inline-block;
  margin: 0 0 1rem;
  padding: 0.35rem 0.75rem;
  border-left: 4px solid var(--about-green);
  background: rgba(0, 255, 136, 0.08);
  font-family: var(--font-mono, monospace);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--about-green);
}

.page-about .about-hero h1 {
  margin: 0 0 1.25rem;
  font-family: var(--font-heading, Oswald, "Noto Sans SC", sans-serif);
  font-size: clamp(2rem, 5.4vw, 4rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--text-primary, #EAF2F8);
}

.page-about .about-hero-lead {
  max-width: 46rem;
  margin: 0 0 2rem;
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--about-text-sub);
  border-left: 2px solid var(--about-cyan);
  padding-left: 1.25rem;
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
}

.page-about .about-hero-actions .btn,
.page-about .about-links-actions .btn {
  border-radius: 0;
}

.page-about .about-chapter-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  align-items: center;
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--about-line);
  font-family: var(--font-mono, monospace);
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
}

.page-about .about-chapter-nav a {
  padding: 0.45rem 0.7rem;
  border: 1px solid transparent;
  color: var(--about-text-sub);
  text-decoration: none;
  transition: all 0.3s var(--ease, ease);
}

.page-about .about-chapter-nav a:hover {
  border-color: var(--about-line);
  color: var(--about-green);
}

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

.page-about .about-hero-poster {
  position: relative;
  overflow: hidden;
  background: var(--about-bg-2);
  border: 1px solid var(--about-line);
  clip-path: polygon(0 0, calc(100% - 48px) 0, 100% 48px, 100% 100%, 48px 100%, 0 calc(100% - 48px));
}

.page-about .about-hero-svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .about-hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 4rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--about-line);
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-stat {
  padding: 1.5rem 1.25rem;
  border-right: 1px solid var(--about-line);
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-stat:nth-child(even) {
  border-right: none;
}

.page-about .about-stat-label {
  display: block;
  margin: 0 0 0.5rem;
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--about-text-sub);
}

.page-about .about-stat-num {
  margin: 0;
  font-family: var(--font-heading, Oswald, "Noto Sans SC", sans-serif);
  font-size: 2.75rem;
  line-height: 1;
  font-weight: 700;
  color: var(--text-primary, #EAF2F8);
}

.page-about .about-stat-unit {
  margin-left: 0.15em;
  font-size: 1.5rem;
  color: var(--about-green);
}

.page-about .about-vision,
.page-about .about-timeline-section,
.page-about .about-team,
.page-about .about-honors,
.page-about .about-links {
  max-width: var(--content-w, 1120px);
  margin: 0 auto;
  padding: 4.5rem 1.25rem;
}

.page-about .section-head {
  margin-bottom: 2.5rem;
}

.page-about .section-kicker {
  display: inline-block;
  margin-bottom: 1rem;
  font-family: var(--font-mono, monospace);
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--about-orange);
}

.page-about .section-head h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-heading, Oswald, "Noto Sans SC", sans-serif);
  font-size: clamp(1.8rem, 4vw, 3.25rem);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--text-primary, #EAF2F8);
}

.page-about .section-desc {
  max-width: 44rem;
  margin: 0;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--about-text-sub);
}

.page-about .about-vision-grid,
.page-about .about-team-grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.page-about .about-vision-figure,
.page-about .about-team-figure,
.page-about .about-honor-figure {
  position: relative;
  margin: 0;
}

.page-about .about-vision-figure img,
.page-about .about-team-figure img,
.page-about .about-honor-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-vision-figure img {
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 24px 100%, 0 calc(100% - 24px));
}

.page-about .about-team-figure img {
  clip-path: polygon(24px 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%, 0 24px);
}

.page-about .about-vision-figure::after,
.page-about .about-team-figure::after,
.page-about .about-honor-figure::after {
  content: "";
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  right: 1rem;
  height: 0;
  border-bottom: 2px solid var(--about-green);
  opacity: 0.7;
  pointer-events: none;
}

.page-about .about-vision-figure figcaption,
.page-about .about-team-figure figcaption,
.page-about .about-honor-figure figcaption {
  margin-top: 0.75rem;
  font-family: var(--font-mono, monospace);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--about-text-sub);
}

.page-about .about-vision-copy p,
.page-about .about-team-copy p {
  margin: 0 0 1.25rem;
  line-height: 1.8;
  color: var(--about-text-sub);
}

.page-about .about-vision-points,
.page-about .about-team-roles {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  border-top: 1px solid var(--about-line);
}

.page-about .about-vision-points li,
.page-about .about-team-roles li {
  display: flex;
  gap: 1rem;
  align-items: baseline;
  padding: 0.875rem 0;
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-vision-points li::before {
  content: "";
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  transform: rotate(45deg) translateY(-2px);
  background: var(--about-green);
}

.page-about .about-team-copy p:first-child {
  color: var(--text-primary, #EAF2F8);
  font-size: 1.0625rem;
}

.page-about .about-team-roles li {
  flex-direction: column;
  gap: 0.25rem;
}

.page-about .about-team-roles strong {
  font-family: var(--font-heading, Oswald, "Noto Sans SC", sans-serif);
  font-size: 1.0625rem;
  color: var(--text-primary, #EAF2F8);
}

.page-about .about-team-roles span {
  font-size: 0.9375rem;
  color: var(--about-text-sub);
}

.page-about .about-timeline-section {
  position: relative;
  background: linear-gradient(180deg, transparent 0%, rgba(17, 36, 58, 0.5) 12%, rgba(17, 36, 58, 0.5) 88%, transparent 100%);
}

.page-about .about-bg-number {
  position: absolute;
  top: 5rem;
  left: -0.15em;
  z-index: 0;
  font-family: var(--font-heading, Oswald, "Noto Sans SC", sans-serif);
  font-size: clamp(8rem, 24vw, 20rem);
  font-weight: 800;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 140, 0, 0.25);
  opacity: 0.45;
  pointer-events: none;
  user-select: none;
}

.page-about .about-timeline-section .section-head,
.page-about .about-timeline {
  position: relative;
  z-index: 1;
}

.page-about .about-timeline {
  list-style: none;
  margin: 3rem 0 0;
  padding: 0;
  display: grid;
  gap: 1.5rem;
}

.page-about .about-milestone {
  position: relative;
  padding-left: 2rem;
}

.page-about .about-milestone-marker {
  position: absolute;
  top: 0.25rem;
  left: 0;
  width: 1rem;
  height: 1rem;
}

.page-about .about-milestone-dot {
  display: block;
  width: 0.75rem;
  height: 0.75rem;
  background: var(--about-green);
  transform: rotate(45deg);
  box-shadow: 0 0 0 4px rgba(0, 255, 136, 0.15), 0 0 18px rgba(0, 255, 136, 0.35);
}

.page-about .about-milestone::before {
  content: "";
  position: absolute;
  top: 1.15rem;
  left: 5px;
  bottom: -1.6rem;
  width: 2px;
  background: linear-gradient(180deg, var(--about-line) 0%, var(--about-cyan) 100%);
}

.page-about .about-milestone:last-child::before {
  display: none;
}

.page-about .about-milestone-card {
  background: var(--about-bg-2);
  border: 1px solid var(--about-line);
  padding: 1.5rem;
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 0 100%);
  transition: border-color 0.4s var(--ease, ease), background 0.4s var(--ease, ease);
}

.page-about .about-milestone-card:hover {
  border-color: rgba(0, 255, 136, 0.6);
  background: rgba(17, 36, 58, 0.55);
}

.page-about .about-milestone-year {
  display: inline-block;
  margin-bottom: 0.5rem;
  font-family: var(--font-mono, monospace);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--about-orange);
  letter-spacing: 0.12em;
}

.page-about .about-milestone-card h3 {
  margin: 0 0 0.625rem;
  font-family: var(--font-heading, Oswald, "Noto Sans SC", sans-serif);
  font-size: 1.375rem;
  line-height: 1.2;
  color: var(--text-primary, #EAF2F8);
}

.page-about .about-milestone-card p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--about-text-sub);
}

.page-about .about-team-grid {
  align-items: start;
}

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

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

.page-about .about-honor-card {
  position: relative;
  background: var(--about-bg-2);
  border: 1px solid var(--about-line);
  padding: 2rem 1.5rem 1.5rem;
  overflow: hidden;
}

.page-about .about-honor-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 48px;
  height: 48px;
  background: linear-gradient(225deg, var(--about-orange) 0 50%, transparent 50%);
}

.page-about .about-honor-medal {
  display: inline-flex;
  width: 56px;
  height: 56px;
  margin-bottom: 1rem;
}

.page-about .about-honor-medal svg {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 0 8px rgba(0, 216, 255, 0.3));
}

.page-about .about-honor-year {
  display: block;
  margin-bottom: 0.375rem;
  font-family: var(--font-mono, monospace);
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  color: var(--about-cyan);
}

.page-about .about-honor-card h3 {
  margin: 0 0 0.625rem;
  font-family: var(--font-heading, Oswald, "Noto Sans SC", sans-serif);
  font-size: 1.25rem;
  line-height: 1.25;
  color: var(--text-primary, #EAF2F8);
}

.page-about .about-honor-card p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--about-text-sub);
}

.page-about .about-honor-figure {
  max-width: 480px;
  margin: 0 auto;
}

.page-about .about-honor-figure img {
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-about .about-links {
  text-align: center;
  border-top: 1px solid var(--about-line);
  border-bottom: 1px solid var(--about-line);
  margin-bottom: 2rem;
}

.page-about .about-links-title {
  margin: 0 0 1.5rem;
  font-family: var(--font-heading, Oswald, "Noto Sans SC", sans-serif);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary, #EAF2F8);
}

.page-about .about-links-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

@media (min-width: 760px) {
  .page-about .about-hero {
    padding-top: 5rem;
  }

  .page-about .about-hero-frame {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 3rem;
    align-items: start;
  }

  .page-about .about-hero-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin-top: 5rem;
  }

  .page-about .about-stat {
    border-bottom: none;
    border-right: 1px solid var(--about-line);
    padding: 2rem 1.5rem;
  }

  .page-about .about-stat:nth-child(even) {
    border-right: 1px solid var(--about-line);
  }

  .page-about .about-stat:last-child {
    border-right: none;
  }

  .page-about .about-vision,
  .page-about .about-timeline-section,
  .page-about .about-team,
  .page-about .about-honors,
  .page-about .about-links {
    padding-right: 2.5rem;
    padding-left: 2.5rem;
  }

  .page-about .about-vision-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 2.5rem;
  }

  .page-about .about-team-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 3rem;
  }

  .page-about .about-timeline {
    max-width: 720px;
  }

  .page-about .about-milestone-card {
    padding: 2rem 2.25rem;
  }

  .page-about .about-honor-wall {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-honor-inner {
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .page-about .about-breadcrumbs {
    padding-right: 0;
    padding-left: 0;
  }

  .page-about .about-hero {
    padding-top: 6rem;
  }

  .page-about .about-hero h1 {
    font-size: 4.25rem;
  }

  .page-about .about-hero-poster {
    align-self: center;
  }

  .page-about .about-vision,
  .page-about .about-timeline-section,
  .page-about .about-team,
  .page-about .about-honors,
  .page-about .about-links {
    padding-right: 0;
    padding-left: 0;
  }

  .page-about .about-vision-copy {
    padding-left: 2rem;
  }

  .page-about .about-honor-inner {
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 3rem;
  }
}