.page-about {
  --about-green: #C6FF00;
  --about-orange: #FF6B35;
  --about-purple: #4A0E4E;
  --about-blue: #0E1B2A;
  --about-ink: #1A1A1A;
  --about-paper: #F5F7FA;
  --about-mono: 'Roboto Mono', 'Consolas', 'Courier New', monospace;
  --about-heading: 'Noto Sans SC', 'Impact', 'Microsoft YaHei', sans-serif;
  --about-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  position: relative;
  color: var(--about-paper);
  background:
    linear-gradient(180deg, rgba(10, 18, 30, 0.92) 0%, rgba(20, 26, 40, 0.96) 52%, rgba(42, 8, 48, 0.95) 100%),
    radial-gradient(circle at 84% 12%, rgba(74, 14, 78, 0.46) 0, transparent 320px),
    radial-gradient(circle at 12% 76%, rgba(198, 255, 0, 0.05) 0, transparent 260px);
  background-color: var(--about-blue);
  overflow: hidden;
}

.page-about .container,
.page-about .container-narrow,
.page-about .site-content {
  max-width: 1440px;
  margin: 0 auto;
}

.page-about a {
  color: var(--about-green);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 255, 0, 0.35);
  transition: border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

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

.page-about .about-hero {
  padding: 40px 20px 48px;
  position: relative;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 46%;
  height: 100%;
  background:
    linear-gradient(115deg, transparent 14%, rgba(198, 255, 0, 0.12) 14.4%, transparent 14.8%),
    linear-gradient(115deg, transparent 34%, rgba(255, 107, 53, 0.08) 34.4%, transparent 34.8%);
  pointer-events: none;
  z-index: 0;
}

.page-about .about-breadcrumb {
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}

.page-about .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .breadcrumb-item {
  font-family: var(--about-body);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: rgba(245, 247, 250, 0.62);
}

.page-about .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 8px;
  color: var(--about-green);
}

.page-about .breadcrumb-item[aria-current="page"] {
  color: var(--about-green);
  font-weight: 500;
}

.page-about .about-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  position: relative;
  z-index: 1;
}

.page-about .about-eyebrow {
  font-family: var(--about-mono);
  font-size: 13px;
  letter-spacing: 0.28em;
  color: var(--about-orange);
  margin: 0 0 14px;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-about .about-eyebrow::before {
  content: "";
  width: 34px;
  height: 2px;
  background: var(--about-orange);
  display: inline-block;
}

.page-about .page-title {
  font-family: var(--about-heading);
  font-size: clamp(28px, 6vw, 56px);
  line-height: 1.18;
  font-weight: 800;
  color: var(--about-paper);
  letter-spacing: 0.01em;
  margin: 0 0 22px;
  text-wrap: balance;
  border-left: 5px solid var(--about-green);
  padding-left: 18px;
}

.page-about .about-hero-lead {
  font-family: var(--about-body);
  font-size: 16px;
  line-height: 1.8;
  color: rgba(245, 247, 250, 0.86);
  max-width: 660px;
  margin: 0 0 26px;
}

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

.page-about .btn {
  font-family: var(--about-heading);
  font-weight: 700;
  font-size: 15px;
  padding: 14px 24px;
  border: 2px solid var(--about-green);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
  text-decoration: none;
}

.page-about .btn-primary {
  background: var(--about-green);
  color: var(--about-ink);
  box-shadow: 5px 5px 0 rgba(198, 255, 0, 0.28);
}

.page-about .btn-primary:hover {
  background: transparent;
  color: var(--about-green);
  transform: translateY(-2px);
  box-shadow: 8px 8px 0 rgba(198, 255, 0, 0.18);
}

.page-about .btn-ghost {
  background: transparent;
  color: var(--about-green);
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.4);
}

.page-about .btn-ghost:hover {
  background: rgba(198, 255, 0, 0.1);
  transform: translateY(-2px);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.3);
}

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

.page-about .about-hero-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 2px solid rgba(198, 255, 0, 0.4);
  box-shadow: 10px 10px 0 rgba(0, 0, 0, 0.5);
  object-fit: cover;
  aspect-ratio: 16 / 7;
}

.page-about .about-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 16px;
}

.page-about .about-hero-meta-item {
  font-family: var(--about-mono);
  font-size: 12px;
  color: rgba(245, 247, 250, 0.7);
  border: 1px solid rgba(245, 247, 250, 0.22);
  padding: 6px 12px;
  background: rgba(14, 27, 42, 0.7);
}

.page-about .about-story-wrap,
.page-about .about-milestone-wrap,
.page-about .about-stats-wrap,
.page-about .about-mission-wrap,
.page-about .about-source-wrap {
  position: relative;
  padding: 56px 20px;
}

.page-about .about-story-wrap {
  background: rgba(245, 247, 250, 0.03);
  border-top: 2px solid rgba(198, 255, 0, 0.18);
  border-bottom: 2px solid rgba(198, 255, 0, 0.12);
}

.page-about .about-milestone-wrap {
  background: rgba(10, 18, 30, 0.5);
}

.page-about .about-stats-wrap {
  background: linear-gradient(130deg, rgba(74, 14, 78, 0.55) 0%, rgba(14, 27, 42, 0.88) 100%);
  border-top: 2px solid rgba(255, 107, 53, 0.4);
  border-bottom: 2px solid rgba(255, 107, 53, 0.4);
}

.page-about .about-mission-wrap {
  background: rgba(245, 247, 250, 0.03);
}

.page-about .about-source-wrap {
  background: rgba(10, 18, 30, 0.62);
  border-top: 2px solid rgba(198, 255, 0, 0.15);
}

.page-about .about-side-index {
  font-family: var(--about-mono);
  font-size: clamp(60px, 10vw, 130px);
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px rgba(245, 247, 250, 0.14);
  position: absolute;
  top: 24px;
  right: 10px;
  letter-spacing: -0.04em;
  z-index: 0;
  pointer-events: none;
  line-height: 1;
}

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

.page-about .about-section-head {
  margin-bottom: 34px;
}

.page-about .about-section-kicker,
.page-about .about-eyebrow {
  font-family: var(--about-mono);
  font-size: 13px;
  letter-spacing: 0.24em;
  color: var(--about-green);
  margin: 0 0 10px;
  text-transform: uppercase;
}

.page-about .section-title {
  font-family: var(--about-heading);
  font-size: clamp(26px, 4.5vw, 42px);
  line-height: 1.2;
  font-weight: 800;
  color: var(--about-paper);
  margin: 0;
  position: relative;
  display: inline-block;
  letter-spacing: 0.02em;
}

.page-about .section-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 58px;
  height: 4px;
  background: var(--about-orange);
}

.page-about .about-section-desc {
  font-family: var(--about-body);
  font-size: 14px;
  line-height: 1.7;
  color: rgba(245, 247, 250, 0.7);
  margin-top: 16px;
  max-width: 560px;
}

.page-about .about-story-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin-top: 18px;
}

.page-about .about-story-copy p {
  font-family: var(--about-body);
  font-size: 15px;
  line-height: 1.85;
  color: rgba(245, 247, 250, 0.85);
  margin: 0 0 18px;
}

.page-about .about-story-facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: rgba(198, 255, 0, 0.22);
  border: 2px solid rgba(198, 255, 0, 0.24);
  margin: 0;
}

.page-about .about-fact-item {
  background: var(--about-blue);
  padding: 16px 18px;
}

.page-about .about-fact-label {
  font-family: var(--about-mono);
  font-size: 12px;
  color: rgba(245, 247, 250, 0.58);
  letter-spacing: 0.12em;
  margin-bottom: 6px;
}

.page-about .about-fact-value {
  font-family: var(--about-heading);
  font-size: 18px;
  font-weight: 800;
  color: var(--about-green);
  margin: 0;
  line-height: 1.3;
}

.page-about .about-timeline {
  display: flex;
  flex-direction: column;
  gap: 26px;
  margin-top: 44px;
  position: relative;
  padding-left: 24px;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--about-green) 0%, rgba(198, 255, 0, 0.2) 45%, var(--about-orange) 100%);
}

.page-about .about-timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-about .about-timeline-item::before {
  content: "";
  position: absolute;
  left: -23px;
  top: 12px;
  width: 14px;
  height: 14px;
  background: var(--about-green);
  border: 3px solid var(--about-blue);
  box-shadow: 0 0 0 2px var(--about-green);
  z-index: 1;
}

.page-about .about-timeline-item:nth-child(even)::before {
  background: var(--about-orange);
  box-shadow: 0 0 0 2px var(--about-orange);
}

.page-about .about-timeline-marker {
  font-family: var(--about-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--about-orange);
  letter-spacing: 0.06em;
}

.page-about .about-timeline-card {
  background: rgba(14, 27, 42, 0.75);
  border: 1px solid rgba(245, 247, 250, 0.16);
  border-left: 3px solid var(--about-green);
  padding: 14px 16px;
  transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.page-about .about-timeline-card:hover {
  background: rgba(14, 27, 42, 0.95);
  transform: translateX(3px);
  box-shadow: 5px 5px 0 rgba(198, 255, 0, 0.15);
}

.page-about .about-timeline-title {
  font-family: var(--about-heading);
  font-size: 16px;
  font-weight: 800;
  color: var(--about-paper);
  margin: 0 0 8px;
}

.page-about .about-timeline-card p {
  font-family: var(--about-body);
  font-size: 13px;
  line-height: 1.7;
  color: rgba(245, 247, 250, 0.78);
  margin: 0;
}

.page-about .about-milestone-image {
  margin-top: 30px;
  border: 2px solid rgba(255, 107, 53, 0.38);
  box-shadow: 9px 9px 0 rgba(0, 0, 0, 0.4);
}

.page-about .about-milestone-image img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 16 / 8;
}

.page-about .stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 24px;
  border: 2px solid rgba(198, 255, 0, 0.28);
  background: rgba(14, 27, 42, 0.52);
  padding: 18px;
}

.page-about .stat-cell {
  padding: 18px 14px;
  background: rgba(10, 18, 30, 0.72);
  border-bottom: 3px solid rgba(198, 255, 0, 0.4);
  position: relative;
  transition: background-color 0.2s ease, box-shadow 0.2s ease;
  display: flex;
  flex-direction: column;
}

.page-about .stat-cell:hover {
  background: rgba(14, 27, 42, 0.92);
  box-shadow: inset 4px 0 0 var(--about-orange);
}

.page-about .stat-cell:nth-child(3n) {
  border-bottom-color: var(--about-orange);
}

.page-about .stat-value {
  font-family: var(--about-mono);
  font-size: clamp(26px, 5vw, 40px);
  font-weight: 700;
  color: var(--about-green);
  line-height: 1;
  display: block;
  margin-bottom: 10px;
}

.page-about .stat-value i {
  font-style: normal;
  font-size: 0.58em;
  color: var(--about-orange);
  margin-left: 2px;
}

.page-about .stat-label {
  font-family: var(--about-body);
  font-size: 13px;
  color: rgba(245, 247, 250, 0.7);
  letter-spacing: 0.02em;
}

.page-about .about-stats-note {
  font-family: var(--about-mono);
  font-size: 12px;
  color: rgba(245, 247, 250, 0.5);
  margin-top: 18px;
  border-left: 2px solid var(--about-orange);
  padding-left: 12px;
}

.page-about .about-mission-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-about .about-mission-lead {
  font-family: var(--about-heading);
  font-size: 20px;
  line-height: 1.5;
  font-weight: 700;
  color: var(--about-paper);
  margin: 16px 0 14px;
  border-left: 4px solid var(--about-orange);
  padding-left: 16px;
}

.page-about .about-mission-copy p {
  font-family: var(--about-body);
  font-size: 15px;
  line-height: 1.85;
  color: rgba(245, 247, 250, 0.82);
  margin-bottom: 16px;
}

.page-about .about-mission-copy .btn {
  margin-top: 10px;
}

.page-about .about-mission-aside {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-about .about-mission-card {
  background: rgba(245, 247, 250, 0.05);
  border: 1px solid rgba(245, 247, 250, 0.16);
  border-left: 4px solid var(--about-purple);
  padding: 18px;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.page-about .about-mission-card:hover {
  border-left-color: var(--about-green);
  background: rgba(245, 247, 250, 0.08);
}

.page-about .about-mission-card-title {
  font-family: var(--about-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--about-green);
  letter-spacing: 0.08em;
  margin: 0 0 8px;
}

.page-about .about-mission-card p {
  font-family: var(--about-body);
  font-size: 14px;
  line-height: 1.6;
  color: rgba(245, 247, 250, 0.82);
  margin: 0;
}

.page-about .about-source-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 10px;
}

.page-about .about-source-card {
  background: rgba(10, 18, 30, 0.7);
  border: 1px solid rgba(198, 255, 0, 0.18);
  border-top: 3px solid var(--about-green);
  padding: 20px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.page-about .about-source-card:hover {
  transform: translateY(-3px);
  box-shadow: 6px 6px 0 rgba(198, 255, 0, 0.12);
}

.page-about .about-source-card-title {
  font-family: var(--about-heading);
  font-size: 17px;
  font-weight: 800;
  color: var(--about-paper);
  margin: 0 0 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-about .about-source-card-title::before {
  content: "";
  width: 22px;
  height: 4px;
  background: var(--about-orange);
  flex-shrink: 0;
}

.page-about .about-source-card p {
  font-family: var(--about-body);
  font-size: 14px;
  line-height: 1.7;
  color: rgba(245, 247, 250, 0.8);
  margin: 0;
}

.page-about .about-source-figure {
  margin: 6px 0 0;
  border: 2px solid rgba(198, 255, 0, 0.35);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.4);
  background: rgba(14, 27, 42, 0.7);
}

.page-about .about-source-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 16 / 10;
}

.page-about .about-source-trust {
  font-family: var(--about-body);
  font-size: 13px;
  line-height: 1.7;
  color: rgba(245, 247, 250, 0.58);
  margin: 24px 0 0;
  border-top: 1px solid rgba(198, 255, 0, 0.15);
  padding-top: 16px;
  max-width: 760px;
}

@media (min-width: 640px) {
  .page-about .about-hero {
    padding: 52px 32px 60px;
  }

  .page-about .about-story-wrap,
  .page-about .about-milestone-wrap,
  .page-about .about-stats-wrap,
  .page-about .about-mission-wrap,
  .page-about .about-source-wrap {
    padding: 72px 32px;
  }

  .page-about .about-story-facts {
    grid-template-columns: 1fr 1fr;
  }

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

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

  .page-about .about-source-figure {
    grid-column: span 2;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero {
    padding: 56px 48px 72px;
  }

  .page-about .about-hero-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 52px;
    align-items: center;
  }

  .page-about .page-title {
    font-size: 54px;
  }

  .page-about .about-story-wrap,
  .page-about .about-milestone-wrap,
  .page-about .about-stats-wrap,
  .page-about .about-mission-wrap,
  .page-about .about-source-wrap {
    padding: 88px 48px;
  }

  .page-about .about-story-layout {
    grid-template-columns: 1.3fr 0.7fr;
    gap: 40px;
    align-items: start;
  }

  .page-about .about-timeline {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 38px;
    row-gap: 32px;
  }

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

  .page-about .about-timeline-item {
    grid-template-columns: 110px 1fr;
    align-items: start;
  }

  .page-about .about-timeline-item::before {
    left: auto;
    right: -7px;
    top: 16px;
  }

  .page-about .about-timeline-item:nth-child(odd) {
    padding-right: 34px;
    text-align: right;
    grid-template-columns: 1fr 110px;
    grid-auto-flow: row dense;
  }

  .page-about .about-timeline-item:nth-child(odd) .about-timeline-marker {
    grid-column: 2;
    grid-row: 1;
  }

  .page-about .about-timeline-item:nth-child(odd) .about-timeline-card {
    grid-column: 1;
    grid-row: 1;
  }

  .page-about .about-timeline-item:nth-child(odd)::before {
    right: -7px;
    left: auto;
  }

  .page-about .about-timeline-item:nth-child(even) {
    padding-left: 34px;
  }

  .page-about .about-timeline-item:nth-child(even)::before {
    left: -7px;
  }

  .page-about .about-milestone-image {
    margin-top: 44px;
  }

  .page-about .stat-grid {
    grid-template-columns: repeat(6, 1fr);
    gap: 1px;
    padding: 0;
    border: 2px solid rgba(198, 255, 0, 0.28);
  }

  .page-about .stat-cell {
    padding: 26px 16px;
    border-right: 1px solid rgba(198, 255, 0, 0.2);
    border-bottom: 0;
  }

  .page-about .stat-cell:last-child {
    border-right: 0;
  }

  .page-about .about-mission-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 44px;
    align-items: start;
  }

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

  .page-about .about-source-figure {
    grid-column: span 1;
    grid-row: span 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition: none !important;
    animation: none !important;
  }
}