.page-about {
  --pa-blue-light: #122a4f;
  --pa-white-soft: rgba(255, 255, 255, 0.72);
  scroll-behavior: smooth;
}

.page-about .pa-breadcrumb-wrap {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 1rem 1.25rem 0;
}

.page-about .pa-hero {
  position: relative;
  background: var(--color-deep-blue);
  background-image:
    linear-gradient(rgba(0, 194, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 194, 255, 0.07) 1px, transparent 1px);
  background-size: 48px 48px;
  color: var(--color-white);
  overflow: hidden;
  padding: 3.5rem 1.25rem 4rem;
}

.page-about .pa-hero::before {
  content: "";
  position: absolute;
  right: -6rem;
  top: 28%;
  width: 38%;
  height: 130%;
  background: linear-gradient(135deg, var(--color-orange) 0%, var(--color-orange-soft) 100%);
  clip-path: polygon(10% 0, 100% 0, 100% 100%, 0 100%);
  transform: skewX(-10deg);
  opacity: 0.92;
  pointer-events: none;
}

.page-about .pa-hero-shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
  align-items: center;
  max-width: var(--container-wide);
  margin: 0 auto;
}

.page-about .pa-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-cyan);
  margin: 0 0 1rem;
}

.page-about .pa-kicker::before {
  content: "";
  width: 2rem;
  height: 3px;
  background: var(--color-orange);
}

.page-about .pa-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.375rem, 5vw, 4.125rem);
  line-height: 1.08;
  letter-spacing: 0.01em;
  margin: 0;
  color: var(--color-white);
}

.page-about .pa-hero-sub {
  max-width: 62ch;
  margin: 1.25rem 0 0;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--pa-white-soft);
}

.page-about .pa-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.page-about .pa-hero-card {
  position: relative;
  max-width: 380px;
  width: 100%;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0.04) 100%);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 1.5rem;
}

.page-about .pa-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.page-about .pa-card-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: var(--color-orange);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 1.25rem;
  clip-path: polygon(0 0, 100% 0, 100% 78%, 78% 100%, 0 100%);
}

.page-about .pa-card-status {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--color-success);
}

.page-about .pa-pulse-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--color-success);
  animation: pa-pulse 1.8s ease-in-out infinite;
}

@keyframes pa-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0, 214, 143, 0.6); }
  50% { box-shadow: 0 0 0 6px rgba(0, 214, 143, 0); }
}

.page-about .pa-card-main {
  margin-top: 1.25rem;
}

.page-about .pa-card-name {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  letter-spacing: 0.02em;
  color: var(--color-white);
}

.page-about .pa-card-domain {
  margin: 0.25rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-gray-blue);
}

.page-about .pa-card-list {
  margin: 1.25rem 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  padding-top: 0.625rem;
}

.page-about .pa-card-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.4rem 0;
}

.page-about .pa-card-row dt {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.68);
}

.page-about .pa-card-row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-cyan);
}

.page-about .pa-card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  padding-top: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--color-orange-soft);
}

.page-about .pa-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 2.5rem 1.25rem 3rem;
}

.page-about .pa-toc {
  position: relative;
  background: var(--color-deep-blue);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  overflow: hidden;
}

.page-about .pa-toc-head {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-orange-soft);
  white-space: nowrap;
}

.page-about .pa-toc-dash {
  width: 1.5rem;
  height: 2px;
  background: var(--color-orange);
}

.page-about .pa-toc-list {
  list-style: none;
  margin: 0.75rem -0.75rem 0;
  padding: 0 0.5rem;
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-about .pa-toc-list a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
  color: var(--color-white);
  font-size: 0.875rem;
  padding: 0.5rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  text-decoration: none;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.page-about .pa-toc-list a span {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-orange);
}

.page-about .pa-toc-list a:hover {
  background: rgba(255, 106, 0, 0.18);
  border-color: var(--color-orange);
}

.page-about .pa-toc-note {
  display: none;
}

.page-about .pa-main {
  min-width: 0;
}

.page-about .pa-main > section {
  margin-bottom: 3rem;
}

.page-about .pa-section-head {
  margin-bottom: 1.75rem;
}

.page-about .pa-section-num {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-orange);
}

.page-about .pa-section-num::after {
  content: "";
  width: 2.5rem;
  height: 1px;
  background: var(--color-gray-blue);
}

.page-about .pa-section-head h2 {
  margin: 0.5rem 0 0;
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  line-height: 1.15;
  color: var(--color-deep-blue);
  letter-spacing: 0.01em;
}

.page-about .pa-section-desc {
  margin: 0.75rem 0 0;
  max-width: 62ch;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--color-gray-blue);
}

.page-about .pa-story-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
  align-items: center;
  margin-top: 2rem;
}

.page-about .pa-story-text p {
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: #3d4a5a;
}

.page-about .pa-story-text p:last-child {
  margin-bottom: 0;
}

.page-about .pa-story-text strong {
  color: var(--color-deep-blue);
  font-weight: 700;
}

.page-about .pa-story-media,
.page-about .pa-timeline-media,
.page-about .pa-stats-media {
  line-height: 0;
}

.page-about .pa-story-media img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  max-width: 100%;
}

.page-about .pa-stats-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
}

.page-about .pa-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.page-about .pa-stat-card {
  position: relative;
  background: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.25rem;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  min-height: 8.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.page-about .pa-stat-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-orange) 0%, var(--color-orange-soft) 100%);
}

.page-about .pa-stat-card:nth-child(3n+2)::before {
  background: linear-gradient(90deg, var(--color-cyan) 0%, var(--color-success) 100%);
}

.page-about .pa-stat-card:nth-child(3n+3)::before {
  background: linear-gradient(90deg, var(--color-deep-blue) 0%, var(--color-cyan) 100%);
}

.page-about .pa-stat-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: clamp(1.875rem, 3vw, 2.75rem);
  line-height: 1.1;
  color: var(--color-deep-blue);
}

.page-about .pa-stat-label {
  display: block;
  margin-top: 0.625rem;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--color-gray-blue);
}

.page-about .pa-stats-media {
  position: relative;
  min-height: 320px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  background: var(--color-light-gray);
}

.page-about .pa-stats-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
}

.page-about .pa-timeline-media {
  margin: 0 0 2.5rem;
}

.page-about .pa-timeline-media img {
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.page-about .pa-timeline {
  position: relative;
  max-width: 960px;
  margin: 0 auto;
}

.page-about .pa-timeline::before {
  content: "";
  position: absolute;
  left: 0.3rem;
  top: 0.25rem;
  bottom: 0.25rem;
  width: 2px;
  background: linear-gradient(180deg, var(--color-orange) 0%, var(--color-cyan) 100%);
}

.page-about .pa-timeline-item {
  position: relative;
  padding-left: 3rem;
  padding-bottom: 2.5rem;
}

.page-about .pa-timeline-item:last-child {
  padding-bottom: 0;
}

.page-about .pa-timeline-dot {
  position: absolute;
  left: 0;
  top: 0.375rem;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: var(--color-white);
  border: 3px solid var(--color-orange);
  box-shadow: 0 0 0 2px rgba(255, 106, 0, 0.35);
}

.page-about .pa-timeline-card {
  background: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-md);
}

.page-about .pa-timeline-card:hover {
  border-color: var(--color-orange);
  box-shadow: var(--shadow-md);
}

.page-about .pa-timeline-year {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.625rem;
  background: var(--color-deep-blue);
  color: var(--color-white);
  border-left: 3px solid var(--color-orange);
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
}

.page-about .pa-timeline-card h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-heading);
  font-size: 1.375rem;
  line-height: 1.2;
  color: var(--color-deep-blue);
}

.page-about .pa-timeline-card p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--color-gray-blue);
}

.page-about .pa-commitment {
  position: relative;
  background: linear-gradient(135deg, var(--color-deep-blue) 0%, var(--pa-blue-light) 100%);
  border-radius: var(--radius-lg);
  padding: 2.5rem 1.5rem;
  color: var(--color-white);
  overflow: hidden;
}

.page-about .pa-commitment::after {
  content: "";
  position: absolute;
  right: -3rem;
  top: -3rem;
  width: 12rem;
  height: 12rem;
  background: radial-gradient(circle, rgba(255, 106, 0, 0.35) 0%, transparent 70%);
  pointer-events: none;
}

.page-about .pa-commitment-copy,
.page-about .pa-commit-list {
  position: relative;
  z-index: 1;
}

.page-about .pa-commitment-copy {
  margin-bottom: 2rem;
}

.page-about .pa-commitment-copy .pa-section-num {
  color: var(--color-orange-soft);
}

.page-about .pa-commitment-copy .pa-section-num::after {
  background: rgba(255, 255, 255, 0.28);
}

.page-about .pa-commitment-copy h2 {
  margin: 0.5rem 0 0;
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  line-height: 1.15;
  color: var(--color-white);
}

.page-about .pa-commitment-copy .pa-section-desc {
  color: rgba(255, 255, 255, 0.72);
}

.page-about .pa-commit-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
}

.page-about .pa-commit-item {
  display: flex;
  gap: 0.875rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 1.125rem 1rem;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.page-about .pa-commit-item:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.28);
}

.page-about .pa-commit-mark {
  flex: 0 0 auto;
  width: 0.625rem;
  height: 0.625rem;
  margin-top: 0.375rem;
  border-radius: 50%;
  background: var(--color-orange);
  box-shadow: 0 0 0 3px rgba(255, 106, 0, 0.22);
}

.page-about .pa-commit-item strong {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-white);
}

.page-about .pa-commit-item p {
  margin: 0.3125rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.72);
}

.page-about .pa-cta {
  position: relative;
  background: linear-gradient(120deg, var(--color-deep-blue) 0%, var(--pa-blue-light) 68%, rgba(255, 106, 0, 0.22) 68.2%, rgba(255, 106, 0, 0.22) 100%);
  border-radius: var(--radius-lg);
  padding: 2.5rem 1.5rem;
  color: var(--color-white);
  overflow: hidden;
}

.page-about .pa-cta h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  line-height: 1.2;
  color: var(--color-white);
}

.page-about .pa-cta p {
  max-width: 56ch;
  margin: 0.625rem 0 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.78);
}

.page-about .pa-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

@media (min-width: 768px) {
  .page-about .pa-stats-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-about .pa-cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
  }

  .page-about .pa-cta-actions {
    margin-top: 0;
    flex-shrink: 0;
  }
}

@media (min-width: 1024px) {
  .page-about .pa-hero {
    padding: 5.5rem 1.25rem 6rem;
  }

  .page-about .pa-hero-shell {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 3rem;
  }

  .page-about .pa-layout {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 2.5rem;
    align-items: start;
    padding-top: 3.5rem;
  }

  .page-about .pa-toc {
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
    padding: 1.5rem;
  }

  .page-about .pa-toc-list {
    flex-direction: column;
    margin: 1.25rem 0 0;
    padding: 0;
    overflow: visible;
    gap: 0.375rem;
  }

  .page-about .pa-toc-list a {
    width: 100%;
    border-radius: var(--radius-sm);
    border: 0;
    border-left: 3px solid rgba(255, 255, 255, 0.16);
    padding: 0.5rem 0.75rem;
  }

  .page-about .pa-toc-list a:hover {
    background: rgba(255, 255, 255, 0.06);
    border-left-color: var(--color-orange);
  }

  .page-about .pa-toc-note {
    display: block;
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid rgba(255, 255, 255, 0.16);
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.72);
  }

  .page-about .pa-toc-note p {
    margin: 0 0 0.75rem;
  }

  .page-about .pa-toc-note a {
    display: inline-block;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--color-white);
    background: var(--color-orange);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: background var(--transition-fast);
  }

  .page-about .pa-toc-note a:hover {
    background: var(--color-orange-soft);
  }

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

  .page-about .pa-stats-wrap {
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 1.5rem;
    align-items: stretch;
  }

  .page-about .pa-stats-media {
    min-height: 0;
  }

  .page-about .pa-timeline::before {
    left: 50%;
    transform: translateX(-50%);
  }

  .page-about .pa-timeline-item {
    width: 50%;
    padding-left: 0;
    padding-right: 3rem;
    padding-bottom: 2.75rem;
  }

  .page-about .pa-timeline-item:nth-child(even) {
    margin-left: 50%;
    text-align: left;
    padding-left: 3rem;
    padding-right: 0;
  }

  .page-about .pa-timeline-item:nth-child(odd) {
    text-align: right;
  }

  .page-about .pa-timeline-item:nth-child(odd) .pa-timeline-dot {
    left: auto;
    right: -0.35rem;
  }

  .page-about .pa-timeline-item:nth-child(even) .pa-timeline-dot {
    left: -0.35rem;
  }

  .page-about .pa-commitment {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 2.5rem;
    padding: 3rem;
  }

  .page-about .pa-commitment-copy {
    margin-bottom: 0;
  }

  .page-about .pa-cta {
    padding: 3rem;
  }
}