.page-about {
  --about-green-soft: rgba(0, 255, 136, 0.07);
  --about-blue-soft: rgba(0, 194, 255, 0.07);
  --about-gold-soft: rgba(255, 215, 0, 0.07);
  --about-grid-line: rgba(255, 255, 255, 0.05);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
}

.page-about__shell {
  position: relative;
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 24px 14px 56px;
}

.page-about__shell::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--about-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-grid-line) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(ellipse at 78% 18%, #000 0%, transparent 72%);
  mask-image: radial-gradient(ellipse at 78% 18%, #000 0%, transparent 72%);
}

.page-about__aside,
.page-about__content {
  position: relative;
  z-index: 1;
}

.page-about__aside {
  min-width: 0;
}

.page-about__aside-inner {
  position: relative;
  overflow: hidden;
  background: linear-gradient(165deg, var(--bg-secondary) 0%, var(--bg-panel) 100%);
  border: 1px solid var(--border-muted);
  border-radius: 18px;
  padding: 24px 20px 20px;
}

.page-about__aside-inner::before {
  content: "";
  position: absolute;
  top: -64px;
  right: -64px;
  width: 170px;
  height: 170px;
  border-radius: 50%;
  background: var(--about-green-soft);
  pointer-events: none;
}

.page-about__aside-title {
  margin: 14px 0 4px;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.35rem;
  line-height: 1.3;
}

.page-about__aside-tag {
  margin: 0 0 10px;
  color: var(--accent-green);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
}

.page-about__aside-desc {
  margin: 0 0 18px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

.page-about__facts {
  list-style: none;
  margin: 0 0 18px;
  padding: 14px 0;
  border-top: 1px solid var(--border-muted);
  border-bottom: 1px solid var(--border-muted);
}

.page-about__facts li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}

.page-about__facts li + li {
  margin-top: 10px;
}

.page-about__facts strong {
  color: var(--accent-green);
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
}

.page-about__facts span {
  color: var(--text-secondary);
  font-size: 0.84rem;
}

.page-about__anchor-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.page-about__anchor-nav .btn-ghost {
  flex: 1 1 auto;
  min-width: 0;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.8rem;
  text-align: center;
}

.page-about__aside-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.page-about__aside-links .coord-label {
  grid-column: 1 / -1;
  margin-bottom: 2px;
}

.page-about__aside-links .relay-link {
  border: 1px solid var(--border-muted);
  border-radius: 10px;
  padding: 8px 10px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-decoration: none;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.page-about__aside-links .relay-link:hover,
.page-about__aside-links .relay-link:focus-visible {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.page-about__hero .breadcrumb {
  margin-bottom: 18px;
}

.page-about__hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(1.7rem, 4.4vw, 2.8rem);
  line-height: 1.2;
  letter-spacing: 0.01em;
  max-width: 16em;
}

.page-about__lead {
  max-width: 62em;
  margin: 0 0 24px;
  padding-left: 16px;
  border-left: 3px solid var(--accent-green);
  color: var(--text-secondary);
  font-size: 1.02rem;
  line-height: 1.8;
}

.page-about__hero-map {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  margin: 0 0 12px;
  border: 1px solid var(--border-muted);
  border-radius: 14px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}

.page-about__story-section,
.page-about__numbers-section,
.page-about__milestone-section,
.page-about__tech-section,
.page-about__trust-section {
  margin-top: 56px;
}

.page-about .section-header h2 {
  display: inline-block;
  vertical-align: middle;
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.5rem;
  line-height: 1.3;
}

.page-about__idx {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  margin-right: 12px;
  vertical-align: middle;
  border: 1px solid var(--border-muted);
  border-radius: 999px;
  background: var(--bg-panel);
  color: var(--accent-green);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
}

.page-about__story {
  display: grid;
  gap: 26px;
}

.page-about__story-text p {
  margin: 0 0 16px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.page-about__story-link,
.page-about__tech-text .btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-top: 6px;
}

.page-about__story-img {
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid var(--border-muted);
  border-radius: 16px;
}

.page-about__number-grid {
  display: grid;
  gap: 14px;
}

.page-about__stat {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "idx num"
    "label label"
    "desc desc";
  gap: 6px 14px;
  position: relative;
  overflow: hidden;
  padding: 18px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-muted);
  border-radius: 14px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.page-about__stat::after {
  content: "";
  position: absolute;
  top: -42px;
  right: -42px;
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background: var(--about-green-soft);
  pointer-events: none;
}

.page-about__stat:hover {
  border-color: var(--accent-green);
  box-shadow: 0 10px 30px rgba(0, 255, 136, 0.06);
}

.page-about__stat .panel-index {
  grid-area: idx;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.page-about__stat-num {
  grid-area: num;
  color: var(--accent-green);
  font-family: var(--font-mono);
  font-size: 1.7rem;
  font-weight: 600;
  line-height: 1;
}

.page-about__stat .coord-label {
  grid-area: label;
  margin-top: 2px;
  color: var(--text-primary);
  font-size: 0.86rem;
}

.page-about__stat-desc {
  grid-area: desc;
  margin: 6px 0 0;
  color: var(--text-secondary);
  font-size: 0.86rem;
  line-height: 1.6;
}

.page-about__timeline {
  position: relative;
  padding-left: 28px;
}

.page-about__timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent-green) 0%, var(--accent-blue) 80%, transparent 100%);
  opacity: 0.4;
}

.page-about__milestone {
  position: relative;
  padding-bottom: 30px;
}

.page-about__milestone:last-child {
  padding-bottom: 0;
}

.page-about__milestone-dot {
  position: absolute;
  left: -25px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 3px solid var(--accent-green);
  box-shadow: 0 0 0 3px rgba(0, 255, 136, 0.14);
}

.page-about__milestone-meta {
  display: block;
  margin-bottom: 6px;
  color: var(--accent-blue);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.page-about__milestone h3 {
  margin: 0 0 8px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.05rem;
  line-height: 1.4;
}

.page-about__milestone p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.75;
}

.page-about__milestone a {
  color: var(--accent-blue);
  text-decoration-color: var(--accent-blue);
}

.page-about__tech {
  display: grid;
  gap: 26px;
}

.page-about__tech-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--border-muted);
  border-radius: 16px;
}

.page-about__tech-text p {
  margin: 0 0 16px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.page-about__tech-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 16px 0;
  border-top: 1px solid var(--border-muted);
  border-bottom: 1px solid var(--border-muted);
}

.page-about__tech-list li {
  position: relative;
  padding: 5px 0 5px 20px;
  font-size: 0.9rem;
  line-height: 1.6;
}

.page-about__tech-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.8em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-blue);
}

.page-about__trust-grid {
  display: grid;
  gap: 14px;
}

.page-about__trust-card {
  position: relative;
  overflow: hidden;
  padding: 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-muted);
  border-radius: 14px;
}

.page-about__trust-card::after {
  content: "";
  position: absolute;
  right: -46px;
  bottom: -46px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--about-gold-soft);
  pointer-events: none;
}

.page-about__trust-card h3 {
  margin: 10px 0 8px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.05rem;
  line-height: 1.4;
}

.page-about__trust-card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

.page-about__trust-note {
  margin-top: 24px;
  padding: 16px 18px;
  border-left: 4px solid var(--accent-gold);
  border-radius: 0 12px 12px 0;
  background: var(--about-gold-soft);
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
}

.page-about__trust-note a {
  color: var(--accent-blue);
  text-decoration-color: var(--accent-blue);
}

@media (min-width: 1024px) {
  .page-about__shell {
    display: grid;
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
    padding: 40px 40px 96px;
  }

  .page-about__aside-inner {
    position: sticky;
    top: 160px;
    padding: 28px 24px 24px;
  }

  .page-about__aside-title {
    font-size: 1.55rem;
  }

  .page-about__content {
    min-width: 0;
    max-width: 920px;
  }

  .page-about__story {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 40px;
    align-items: center;
  }

  .page-about__number-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-about__tech {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 40px;
    align-items: center;
  }

  .page-about__trust-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}