.page-about {
  --about-line: rgba(230, 233, 239, 0.06);
  --about-blue-tint: rgba(14, 26, 43, 0.72);
  --about-card-tint: rgba(46, 42, 74, 0.3);
  position: relative;
  background:
    radial-gradient(1100px 500px at 88% 4%, rgba(46, 42, 74, 0.45), transparent 62%),
    radial-gradient(820px 420px at 8% 36%, rgba(14, 26, 43, 0.7), transparent 70%),
    linear-gradient(180deg, #0A0E17 0%, #0E1A2B 38%, #0A0E17 74%, #0E1A2B 100%);
  overflow-x: clip;
  color: var(--text-metal);
  line-height: 1.65;
}

.page-about > * {
  position: relative;
  z-index: 1;
}

.page-about .about-ambient {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.page-about .about-ambient-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--about-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-line) 1px, transparent 1px);
  background-size: 48px 48px;
  transform: skewY(-2deg) scale(1.1);
  opacity: 0.6;
}

.page-about .about-ambient-slab {
  position: absolute;
  top: 120px;
  right: -120px;
  width: 320px;
  height: 720px;
  background: linear-gradient(160deg, rgba(198, 255, 0, 0.1), rgba(255, 192, 0, 0.04));
  clip-path: polygon(20% 0, 100% 30%, 80% 100%, 0 70%);
  transform: skewX(-8deg);
  opacity: 0.5;
}

.page-about .about-breadcrumb {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 28px 20px 0;
  font-size: 0.88rem;
  display: flex;
  gap: 8px;
  color: var(--text-metal);
}

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

.page-about .about-breadcrumb a:hover {
  text-decoration: underline;
}

.page-about .about-hero {
  padding: 52px 0 64px;
}

.page-about .about-hero-inner {
  display: grid;
  gap: 40px;
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-about .about-hero-copy {
  max-width: 560px;
}

.page-about .about-hero-copy .sec-kicker {
  margin: 0 0 14px;
  color: var(--accent-gold);
  font-family: var(--font-head);
  font-size: 0.85rem;
  letter-spacing: 0.18em;
}

.page-about .page-title {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-size: clamp(2.1rem, 6.5vw, 3.8rem);
  line-height: 1.05;
  color: var(--text-white);
  letter-spacing: 0.01em;
}

.page-about .page-desc {
  margin: 0 0 28px;
  font-size: 1rem;
  color: var(--text-metal);
  max-width: 540px;
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

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

.page-about .about-hero-img {
  display: block;
  width: 100%;
  max-width: 600px;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  box-shadow: 18px 18px 0 rgba(198, 255, 0, 0.08);
  clip-path: polygon(4% 0, 100% 0, 96% 100%, 0 100%);
}

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

@media (min-width: 1024px) {
  .page-about .about-rail {
    display: flex;
    flex-direction: column;
    gap: 2px;
    position: fixed;
    right: 22px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 30;
    background: rgba(10, 14, 23, 0.78);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-left: 2px solid rgba(198, 255, 0, 0.6);
    padding: 10px;
    backdrop-filter: blur(8px);
  }

  .page-about .about-rail-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.82rem;
    line-height: 1;
    color: var(--text-metal);
    padding: 10px 12px;
    text-decoration: none;
    transition: color 0.2s var(--ease), background 0.2s var(--ease);
  }

  .page-about .about-rail-item:hover {
    color: var(--text-white);
    background: rgba(198, 255, 0, 0.08);
  }

  .page-about .about-rail-num {
    font-family: var(--font-head);
    color: var(--accent-lime);
    font-size: 0.78rem;
  }
}

.page-about .about-section {
  padding: 72px 0;
}

.page-about .about-story-inner,
.page-about .about-milestones-inner,
.page-about .about-scale-inner,
.page-about .about-qualifications-inner {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-about .sec-head {
  margin-bottom: 44px;
}

.page-about .sec-kicker {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  color: var(--accent-gold);
}

.page-about .sec-title {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 4.5vw, 3rem);
  line-height: 1.1;
  color: var(--text-white);
  letter-spacing: 0.01em;
}

.page-about .sec-desc {
  margin: 0;
  font-size: 1rem;
  color: var(--text-metal);
  max-width: 640px;
}

.page-about .about-story {
  background: linear-gradient(180deg, rgba(14, 26, 43, 0) 0%, rgba(14, 26, 43, 0.55) 100%);
}

.page-about .about-story-grid {
  display: grid;
  gap: 40px;
  align-items: stretch;
}

.page-about .about-story-copy .prose {
  font-size: 1rem;
  color: var(--text-metal);
  margin: 0 0 18px;
}

.page-about .about-job-grid {
  display: grid;
  gap: 16px;
  margin: 32px 0 0;
}

.page-about .about-job {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px 18px;
  background: linear-gradient(135deg, rgba(46, 42, 74, 0.3), rgba(14, 26, 43, 0.25));
  border-left: 3px solid var(--accent-lime);
}

.page-about .about-job-num {
  font-family: var(--font-head);
  color: var(--accent-lime);
  font-size: 1.2rem;
  line-height: 1;
  transform: rotate(-6deg);
}

.page-about .about-job p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-light);
}

.page-about .about-mission-panel {
  position: relative;
  padding: 40px 32px;
  background: linear-gradient(155deg, rgba(255, 192, 0, 0.14), rgba(198, 255, 0, 0.05));
  border-right: 5px solid var(--accent-gold);
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 260px;
  overflow: hidden;
}

.page-about .about-mission-label {
  font-family: var(--font-head);
  font-size: 0.86rem;
  color: var(--accent-gold);
  letter-spacing: 0.14em;
}

.page-about .about-mission-text {
  font-family: var(--font-head);
  font-size: 1.3rem;
  line-height: 1.5;
  color: var(--text-white);
  margin: 16px 0 0;
  max-width: 380px;
}

.page-about .about-mission-mark {
  position: absolute;
  right: 14px;
  bottom: -26px;
  font-family: var(--font-head);
  font-size: 8rem;
  line-height: 1;
  color: rgba(255, 192, 0, 0.12);
  transform: rotate(-8deg);
}

.page-about .about-milestones {
  background: linear-gradient(180deg, transparent, rgba(14, 26, 43, 0.7) 40%, rgba(46, 42, 74, 0.22) 100%);
}

.page-about .about-timeline {
  position: relative;
  margin: 0 0 40px;
  padding-left: 48px;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent-gold), var(--accent-lime) 60%, var(--accent-darkgold));
  opacity: 0.55;
}

.page-about .timeline-item {
  position: relative;
  margin-bottom: 24px;
}

.page-about .timeline-marker {
  position: absolute;
  left: -48px;
  top: 18px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
}

.page-about .timeline-marker svg {
  width: 20px;
  height: 20px;
  filter: drop-shadow(0 0 6px rgba(255, 192, 0, 0.6));
}

.page-about .timeline-card {
  background: linear-gradient(135deg, rgba(46, 42, 74, 0.28), rgba(14, 26, 43, 0.35));
  border-left: 3px solid var(--accent-lime);
  padding: 0;
  transition: background 0.25s var(--ease);
}

.page-about .timeline-card[open] {
  background: linear-gradient(135deg, rgba(46, 42, 74, 0.45), rgba(14, 26, 43, 0.5));
}

.page-about .timeline-card summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 16px;
  cursor: pointer;
  font-family: var(--font-body);
}

.page-about .timeline-card summary::-webkit-details-marker {
  display: none;
}

.page-about .timeline-card summary::after {
  content: "＋";
  margin-left: auto;
  color: var(--accent-gold);
  font-size: 1.2rem;
  font-family: var(--font-head);
  transition: transform 0.2s var(--ease);
}

.page-about .timeline-card[open] summary::after {
  transform: rotate(45deg);
  color: var(--accent-lime);
}

.page-about .timeline-year {
  display: inline-flex;
  align-items: center;
  background: var(--accent-gold);
  color: #0A0E17;
  font-family: var(--font-head);
  font-size: 0.9rem;
  padding: 4px 12px;
  letter-spacing: 0.06em;
  white-space: nowrap;
  flex-shrink: 0;
}

.page-about .timeline-title {
  font-weight: 600;
  color: var(--text-light);
  font-size: 1rem;
}

.page-about .timeline-detail {
  padding: 0 18px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 2px;
}

.page-about .timeline-detail p {
  margin: 14px 0 0;
  font-size: 0.95rem;
  color: var(--text-metal);
}

.page-about .about-timeline-link {
  display: flex;
  justify-content: center;
  margin-top: 36px;
}

.page-about .about-scale {
  background: linear-gradient(180deg, transparent, rgba(14, 26, 43, 0.65) 100%);
}

.page-about .about-scale-layout {
  display: grid;
  gap: 44px;
  align-items: center;
}

.page-about .about-stat-list {
  display: grid;
  gap: 0;
}

.page-about .about-stat-block {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 4px;
  border-bottom: 1px solid rgba(230, 233, 239, 0.08);
}

.page-about .about-stat-block:first-child {
  border-top: 1px solid rgba(230, 233, 239, 0.08);
}

.page-about .about-stat-value {
  font-family: var(--font-head);
  font-size: clamp(2rem, 7vw, 3.6rem);
  line-height: 1.02;
  color: var(--accent-lime);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.page-about .about-stat-label {
  color: var(--text-metal);
  font-size: 0.92rem;
  text-align: right;
  max-width: 220px;
}

.page-about .about-scale-media {
  margin: 0;
}

.page-about .about-scale-media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 1000px;
  object-fit: cover;
  aspect-ratio: 5 / 3;
  box-shadow: -16px -16px 0 rgba(198, 255, 0, 0.06);
  filter: saturate(1.05);
}

.page-about .about-scale-media figcaption,
.page-about .about-qual-media figcaption {
  margin-top: 12px;
  font-size: 0.84rem;
  color: var(--text-metal);
}

.page-about .about-qualifications {
  background: linear-gradient(160deg, rgba(14, 26, 43, 0.5), rgba(46, 42, 74, 0.15));
}

.page-about .about-qual-grid {
  display: grid;
  gap: 40px;
}

.page-about .about-cert-list {
  display: grid;
  gap: 12px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-about .about-cert-item {
  display: flex;
  gap: 14px;
  padding: 18px 16px;
  background: linear-gradient(135deg, rgba(46, 42, 74, 0.22), rgba(14, 26, 43, 0.25));
  border-right: 3px solid var(--accent-darkgold);
}

.page-about .about-cert-icon {
  color: var(--accent-gold);
  font-size: 0.9rem;
  line-height: 1.4;
}

.page-about .about-cert-copy strong {
  color: var(--text-light);
  display: block;
  font-size: 1rem;
  line-height: 1.4;
  margin-bottom: 6px;
}

.page-about .about-cert-copy p {
  margin: 0;
  color: var(--text-metal);
  font-size: 0.88rem;
  line-height: 1.55;
}

.page-about .about-qual-media {
  margin: 0;
}

.page-about .about-qual-media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 800px;
  object-fit: cover;
  aspect-ratio: 8 / 5;
  filter: saturate(1.1);
}

.page-about .about-cert-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.page-about .about-cta {
  position: relative;
  padding: 80px 0;
  background: linear-gradient(120deg, rgba(198, 255, 0, 0.14), rgba(255, 192, 0, 0.07));
  border-top: 2px solid var(--accent-lime);
  border-bottom: 2px solid var(--accent-gold);
}

.page-about .about-cta-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
  text-align: center;
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-about .about-cta-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 2rem;
  color: var(--text-white);
  letter-spacing: 0.03em;
}

@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 80px 0 96px;
  }

  .page-about .about-hero-inner {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
  }

  .page-about .about-hero-img {
    margin-left: auto;
  }

  .page-about .about-story-grid {
    grid-template-columns: 1.4fr 0.6fr;
  }

  .page-about .about-scale-layout {
    grid-template-columns: 1.1fr 0.9fr;
  }

  .page-about .about-scale-media img {
    margin-left: auto;
  }

  .page-about .about-section {
    padding: 104px 0;
  }
}

@media (min-width: 1024px) {
  .page-about .about-timeline {
    max-width: 880px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 0;
  }

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

  .page-about .timeline-item {
    width: calc(50% - 44px);
    margin-right: auto;
    text-align: right;
  }

  .page-about .timeline-item:nth-child(even) {
    margin-left: calc(50% + 44px);
    margin-right: 0;
    text-align: left;
  }

  .page-about .timeline-marker {
    left: auto;
    right: -44px;
    top: 24px;
  }

  .page-about .timeline-item:nth-child(even) .timeline-marker {
    right: auto;
    left: -44px;
  }

  .page-about .timeline-item:nth-child(odd) .timeline-card summary {
    flex-direction: row-reverse;
  }

  .page-about .timeline-item:nth-child(odd) .timeline-card summary::after {
    margin-left: 0;
  }

  .page-about .about-qual-grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
  }

  .page-about .about-cert-item {
    padding: 22px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}