.page-about {
  --about-rail-w: 13rem;
  --about-accent: #39FF14;
  --about-fire: #FF4500;
  --about-grid-line: rgba(30, 58, 95, 0.6);
  --about-deep: #0A1D33;
  --about-panel: #112A4A;
  --about-muted: #B0C4DE;
  --about-text: #FFFFFF;
  --about-cream: #F5F0E6;
  --about-ink: #3E2F23;
  --about-mono: "Roboto Mono", "Noto Sans SC", monospace;
  --about-head: "Rajdhani", "Noto Sans SC", sans-serif;
  --about-body: "Noto Sans SC", system-ui, sans-serif;
  background:
    linear-gradient(var(--about-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-grid-line) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: -1px -1px;
  background-color: var(--about-deep);
  color: var(--about-text);
  font-family: var(--about-body);
  line-height: 1.7;
  position: relative;
  overflow-x: hidden;
}

.page-about .about-shell {
  display: block;
  width: 100%;
  max-width: 100%;
}

.page-about .about-content {
  width: 100%;
  padding: 1.25rem 1.25rem 3rem;
  box-sizing: border-box;
}

.page-about .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.8rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.page-about .breadcrumb-link {
  color: var(--about-muted);
  text-decoration: none;
  font-family: var(--about-mono);
  transition: color 0.2s ease;
}

.page-about .breadcrumb-link:hover {
  color: var(--about-accent);
}

.page-about .breadcrumb-sep {
  color: var(--about-grid-line);
  font-family: var(--about-mono);
}

.page-about .breadcrumb-current {
  color: var(--about-text);
  font-family: var(--about-mono);
  opacity: 0.85;
}

.page-about .about-hero {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  padding: 2.5rem 1.25rem 3rem;
  margin-bottom: 3.5rem;
  background: var(--about-panel);
  border-radius: 1.5rem;
  border: 1px solid var(--about-grid-line);
  background-image:
    radial-gradient(circle at 85% 15%, rgba(57, 255, 20, 0.15), transparent 40%),
    linear-gradient(135deg, transparent 0%, transparent 70%, rgba(255, 69, 0, 0.12) 100%);
  overflow: hidden;
}

.page-about .hero-copy {
  position: relative;
  z-index: 2;
}

.page-about .section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--about-mono);
  font-size: 0.78rem;
  color: var(--about-accent);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.page-about .section-kicker::before {
  content: "";
  width: 1.5rem;
  height: 2px;
  background: var(--about-accent);
  display: inline-block;
}

.page-about .about-hero h1 {
  font-family: var(--about-head);
  font-size: clamp(2rem, 6vw, 4.2rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 1.4rem;
  color: var(--about-text);
  max-width: 12em;
}

.page-about .hero-lead {
  font-size: 1rem;
  color: var(--about-muted);
  max-width: 34rem;
  margin: 0 0 1.8rem;
}

.page-about .btn {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.7rem 1.5rem;
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 700;
  transform: skewX(-3deg);
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  border: 1px solid transparent;
}

.page-about .btn:hover {
  transform: skewX(-3deg) translateY(-2px);
}

.page-about .btn-ghost {
  background: transparent;
  border-color: var(--about-accent);
  color: var(--about-accent);
}

.page-about .btn-ghost:hover {
  background: rgba(57, 255, 20, 0.1);
}

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

.page-about .btn-primary:hover {
  background: #2ad60f;
}

.page-about .btn-sm {
  padding: 0.55rem 1.2rem;
  font-size: 0.8rem;
}

.page-about .btn-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  display: inline-block;
}

.page-about .hero-meta {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.8rem;
  margin: 0;
  padding: 1.25rem;
  background: rgba(10, 29, 51, 0.8);
  border-radius: 1rem;
  border: 1px solid var(--about-grid-line);
  position: relative;
  z-index: 2;
}

.page-about .meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.page-about .meta-item dt {
  font-size: 0.72rem;
  color: var(--about-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.page-about .meta-item dd {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--about-accent);
  margin: 0;
  line-height: 1.2;
}

.page-about .hero-seal {
  display: none;
}

.page-about .about-section {
  margin-bottom: 4.5rem;
  scroll-margin-top: 6rem;
}

.page-about .section-head {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--about-grid-line);
  padding-bottom: 1rem;
}

.page-about .section-code {
  font-size: 0.9rem;
  color: var(--about-fire);
  font-weight: 700;
  white-space: nowrap;
  padding-top: 0.35rem;
}

.page-about .section-head h2 {
  font-family: var(--about-head);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 800;
  margin: 0;
  line-height: 1.1;
}

.page-about .section-note {
  font-size: 0.75rem;
  color: var(--about-muted);
  margin-top: 0.4rem;
  letter-spacing: 0.1em;
}

.page-about .story-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.8rem;
  align-items: start;
}

.page-about .story-text p {
  font-size: 0.95rem;
  color: var(--about-muted);
  margin-bottom: 1rem;
}

.page-about .story-text p:first-child::first-letter {
  font-family: var(--about-head);
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--about-accent);
  float: left;
  margin-right: 0.5rem;
  line-height: 0.8;
}

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

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

.page-about .media-frame--portrait {
  aspect-ratio: 4 / 3;
  max-height: 420px;
}

.page-about .media-frame--portrait img {
  height: 100%;
  min-height: 260px;
}

.page-about .media-frame--wide {
  aspect-ratio: 16 / 9;
  max-height: 320px;
}

.page-about .media-frame--wide img {
  height: 100%;
}

.page-about .media-frame--4-3 {
  aspect-ratio: 4 / 3;
  max-height: 460px;
}

.page-about .media-frame--4-3 img {
  height: 100%;
}

.page-about .media-frame figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 0.6rem 1rem;
  background: rgba(10, 29, 51, 0.9);
  color: var(--about-muted);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  border-top: 1px solid var(--about-grid-line);
}

.page-about .story-trust {
  margin-top: 2rem;
}

.page-about .trust-bar {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: rgba(255, 69, 0, 0.08);
  border-left: 3px solid var(--about-fire);
  border-radius: 0.5rem 1rem 1rem 0.5rem;
  font-size: 0.85rem;
  color: var(--about-muted);
}

.page-about .trust-mark {
  color: var(--about-fire);
  font-size: 0.9rem;
}

.page-about .trust-bar p {
  margin: 0;
}

.page-about .timeline-wrap {
  position: relative;
}

.page-about .timeline {
  position: relative;
  padding-left: 1.5rem;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 0.5rem;
  top: 0.4rem;
  bottom: 0.4rem;
  width: 2px;
  background: linear-gradient(to bottom, var(--about-accent) 0%, var(--about-grid-line) 100%);
}

.page-about .timeline-item {
  position: relative;
  margin-bottom: 1rem;
}

.page-about .timeline-axis {
  position: absolute;
  left: -1.5rem;
  top: 1.1rem;
  width: 1.5rem;
  height: 1.5rem;
  z-index: 2;
}

.page-about .axis-dot {
  display: block;
  width: 12px;
  height: 12px;
  background: var(--about-deep);
  border: 2px solid var(--about-accent);
  transform: rotate(45deg);
  border-radius: 2px;
  position: absolute;
  left: -0.35rem;
  top: 0.15rem;
  box-shadow: 0 0 12px rgba(57, 255, 20, 0.4);
}

.page-about .timeline-card {
  border-radius: 1rem;
  overflow: hidden;
  border: 1px solid var(--about-grid-line);
  background: var(--about-panel);
  transition: border-color 0.25s ease;
}

.page-about .timeline-card:hover {
  border-color: rgba(57, 255, 20, 0.4);
}

.page-about .timeline-trigger {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
  width: 100%;
  background: transparent;
  border: none;
  padding: 1rem 1.1rem;
  cursor: pointer;
  text-align: left;
  font-family: var(--about-body);
  color: var(--about-text);
}

.page-about .year-mono {
  font-family: var(--about-mono);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--about-accent);
  background: rgba(57, 255, 20, 0.08);
  padding: 0.2rem 0.5rem;
  border-radius: 0.4rem;
}

.page-about .event-title {
  font-size: 0.92rem;
  font-weight: 600;
}

.page-about .accordion-icon {
  width: 14px;
  height: 14px;
  position: relative;
  flex-shrink: 0;
}

.page-about .accordion-icon::before,
.page-about .accordion-icon::after {
  content: "";
  position: absolute;
  background: var(--about-accent);
  border-radius: 2px;
  transition: transform 0.25s ease;
}

.page-about .accordion-icon::before {
  width: 14px;
  height: 2px;
  top: 6px;
  left: 0;
}

.page-about .accordion-icon::after {
  width: 2px;
  height: 14px;
  left: 6px;
  top: 0;
}

.page-about .timeline-trigger[aria-expanded="true"] .accordion-icon::after {
  transform: scaleY(0);
}

.page-about .timeline-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s var(--ease, cubic-bezier(0.4, 0, 0.2, 1));
}

.page-about .timeline-panel[data-open="true"] {
  max-height: 20rem;
}

.page-about .accordion-panel-inner {
  padding: 0 1.1rem 1rem 3.6rem;
  font-size: 0.88rem;
  color: var(--about-muted);
  border-top: 1px dashed rgba(30, 58, 95, 0.5);
}

.page-about .accordion-panel-inner p {
  margin: 0.8rem 0 0;
}

.page-about .timeline-banner {
  margin-top: 2rem;
}

.page-about .data-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  padding: 1.25rem;
  border-radius: 1rem;
  border: 1px solid var(--about-grid-line);
  background: var(--about-panel);
  margin-bottom: 2rem;
}

.page-about .stat-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.8rem;
  border-radius: 0.8rem;
  background: rgba(10, 29, 51, 0.5);
}

.page-about .stat-num {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--about-accent);
  line-height: 1.1;
}

.page-about .stat-label {
  font-size: 0.78rem;
  color: var(--about-muted);
}

.page-about .data-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.8rem;
  margin-bottom: 2rem;
}

.page-about .data-copy p {
  font-size: 0.95rem;
  color: var(--about-muted);
  margin-bottom: 1.2rem;
}

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

.page-about .data-feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  padding: 0.65rem 0;
  border-bottom: 1px dashed rgba(30, 58, 95, 0.5);
  font-size: 0.86rem;
  color: var(--about-muted);
}

.page-about .feature-idx {
  color: var(--about-accent);
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.page-about .data-pipeline {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  padding: 1.5rem;
  border-radius: 1rem;
  border: 1px solid var(--about-grid-line);
  background: linear-gradient(135deg, var(--about-panel) 0%, #0d223d 100%);
}

.page-about .pipeline-step {
  padding: 1rem;
  border-radius: 0.8rem;
  background: rgba(10, 29, 51, 0.6);
  border-left: 3px solid var(--about-accent);
}

.page-about .step-code {
  font-size: 0.7rem;
  color: var(--about-accent);
  letter-spacing: 0.1em;
}

.page-about .pipeline-step h3 {
  font-size: 1rem;
  margin: 0.3rem 0 0.4rem;
}

.page-about .pipeline-step p {
  font-size: 0.82rem;
  color: var(--about-muted);
  margin: 0;
}

.page-about .pipeline-arrow {
  display: none;
}

.page-about .credential-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
}

.page-about .credential-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2rem 1.5rem 1.5rem;
  border-radius: 1.2rem;
  border: 1px solid var(--about-grid-line);
  background: var(--about-panel);
  position: relative;
  overflow: hidden;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.page-about .credential-badge:hover {
  border-color: rgba(57, 255, 20, 0.5);
  transform: translateY(-3px);
}

.page-about .badge-circle {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 2px solid var(--about-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.2rem;
  background: rgba(57, 255, 20, 0.06);
  box-shadow: 0 0 24px rgba(57, 255, 20, 0.1);
}

.page-about .badge-icon {
  font-family: var(--about-mono);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--about-accent);
}

.page-about .credential-badge h3 {
  font-size: 1rem;
  margin: 0 0 0.6rem;
}

.page-about .credential-badge p {
  font-size: 0.84rem;
  color: var(--about-muted);
  margin: 0 0 1rem;
  max-width: 18rem;
}

.page-about .badge-tag {
  display: inline-block;
  padding: 0.25rem 0.8rem;
  border-radius: 999px;
  background: rgba(255, 69, 0, 0.12);
  color: var(--about-fire);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
}

.page-about .honor-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
  margin-bottom: 2rem;
}

.page-about .honor-col {
  padding: 1.5rem;
  border-radius: 1rem;
  border: 1px solid var(--about-grid-line);
  background: var(--about-panel);
}

.page-about .honor-col h3 {
  font-family: var(--about-head);
  font-size: 1.3rem;
  margin: 0 0 0.8rem;
}

.page-about .honor-col p {
  font-size: 0.9rem;
  color: var(--about-muted);
  margin-bottom: 1rem;
}

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

.page-about .partner-list li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0;
  border-top: 1px dashed rgba(30, 58, 95, 0.5);
  font-size: 0.85rem;
  color: var(--about-muted);
}

.page-about .partner-idx {
  color: var(--about-accent);
  font-family: var(--about-mono);
  font-size: 0.75rem;
}

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

.page-about .honor-item {
  display: grid;
  grid-template-columns: 5rem 1fr;
  gap: 1rem;
  padding: 0.65rem 0;
  border-top: 1px dashed rgba(30, 58, 95, 0.5);
  font-size: 0.85rem;
}

.page-about .honor-year {
  font-family: var(--about-mono);
  color: var(--about-accent);
  font-size: 0.78rem;
  font-weight: 700;
}

.page-about .honor-desc {
  color: var(--about-muted);
}

.page-about .honor-cta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  padding: 2rem 1.5rem;
  border-radius: 1.2rem;
  background: linear-gradient(135deg, var(--about-panel) 0%, #0d223d 60%, rgba(57, 255, 20, 0.1) 100%);
  border: 1px solid rgba(57, 255, 20, 0.2);
}

.page-about .honor-cta h3 {
  font-family: var(--about-head);
  font-size: 1.5rem;
  margin: 0 0 0.6rem;
}

.page-about .honor-cta p:not(.section-kicker) {
  font-size: 0.88rem;
  color: var(--about-muted);
  margin: 0;
}

.page-about .cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  align-items: center;
}

.page-about .about-rail {
  display: none;
}

@media (min-width: 720px) {
  .page-about .about-content {
    padding: 2rem 2.5rem 4rem;
  }

  .page-about .about-hero {
    grid-template-columns: 1.4fr 1fr;
    padding: 3rem 2.5rem;
  }

  .page-about .hero-meta {
    grid-template-columns: repeat(2, 1fr);
    align-self: end;
  }

  .page-about .story-grid {
    grid-template-columns: 1.5fr 1fr;
    gap: 2.5rem;
  }

  .page-about .data-stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about .data-layout {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  .page-about .data-pipeline {
    grid-template-columns: 1fr auto 1fr auto 1fr;
    align-items: center;
  }

  .page-about .pipeline-arrow {
    display: block;
    color: var(--about-accent);
    font-family: var(--about-mono);
    font-size: 1.4rem;
  }

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

  .page-about .honor-layout {
    grid-template-columns: 1fr 1fr;
  }

  .page-about .honor-cta {
    grid-template-columns: 1.4fr 1fr;
    align-items: center;
    padding: 2.5rem;
  }
}

@media (min-width: 1080px) {
  .page-about .about-shell {
    display: grid;
    grid-template-columns: var(--about-rail-w) 1fr;
    max-width: 1440px;
    margin: 0 auto;
  }

  .page-about .about-rail {
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
    padding: 2rem 1.5rem;
    border-right: 1px solid var(--about-grid-line);
    background: rgba(10, 29, 51, 0.85);
    backdrop-filter: blur(6px);
    z-index: 10;
    box-sizing: border-box;
  }

  .page-about .about-rail-index {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    margin-bottom: 2.5rem;
  }

  .page-about .rail-cap {
    font-size: 0.72rem;
    color: var(--about-muted);
    letter-spacing: 0.2em;
  }

  .page-about .about-rail-index .rail-cap:first-child {
    color: var(--about-accent);
    font-size: 0.85rem;
  }

  .page-about .rail-link {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    padding: 0.65rem 0.8rem;
    color: var(--about-muted);
    text-decoration: none;
    font-size: 0.8rem;
    border-radius: 0.5rem;
    border: 1px solid transparent;
    transition: all 0.2s ease;
  }

  .page-about .rail-link:hover {
    color: var(--about-text);
    background: rgba(57, 255, 20, 0.06);
    border-color: rgba(57, 255, 20, 0.25);
  }

  .page-about .rail-num {
    color: var(--about-fire);
    font-size: 0.7rem;
    font-weight: 700;
    flex-shrink: 0;
  }

  .page-about .rail-coords {
    margin-top: auto;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.65rem;
    color: var(--about-muted);
    letter-spacing: 0.08em;
  }

  .page-about .coords-dot {
    width: 8px;
    height: 8px;
    background: var(--about-accent);
    border-radius: 50%;
    animation: pulse-dot 1.6s infinite;
  }

  .page-about .about-content {
    padding: 2.5rem 4rem 5rem;
  }

  .page-about .about-hero {
    grid-template-columns: 1.6fr 1fr;
    min-height: 460px;
    padding: 4rem 3rem;
  }

  .page-about .hero-seal {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: absolute;
    right: -1.5rem;
    bottom: -1.5rem;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    border: 1px dashed rgba(57, 255, 20, 0.3);
    z-index: 1;
  }

  .page-about .seal-ring {
    position: absolute;
    inset: 12px;
    border: 1px solid rgba(57, 255, 20, 0.2);
    border-radius: 50%;
  }

  .page-about .seal-core {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--about-accent);
    letter-spacing: 0.2em;
  }

  .page-about .seal-text {
    font-size: 0.55rem;
    color: var(--about-muted);
    letter-spacing: 0.3em;
    margin-top: 0.3rem;
  }

  .page-about .timeline-trigger {
    padding: 1.2rem 1.5rem;
  }

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

  .page-about .timeline::before {
    left: 0.7rem;
  }

  .page-about .timeline-axis {
    left: -2rem;
  }
}

@keyframes pulse-dot {
  0%, 100% {
    opacity: 1;
    box-shadow: 0 0 0 0 rgba(57, 255, 20, 0.5);
  }
  50% {
    opacity: 0.7;
    box-shadow: 0 0 0 6px rgba(57, 255, 20, 0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .axis-dot,
  .page-about .coords-dot {
    animation: none;
  }

  .page-about .unit {
    transition: none;
  }
}