.page-about {
  --about-grid: rgba(74, 0, 224, 0.22);
  --about-line: rgba(245, 245, 247, 0.14);
  --about-accent-soft: rgba(198, 255, 0, 0.18);
  background-image:
    linear-gradient(var(--about-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-grid) 1px, transparent 1px);
  background-size: 44px 44px;
  color: var(--color-fg);
  overflow-x: hidden;
}

.page-about img {
  max-width: 100%;
  height: auto;
  display: block;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  font-family: var(--font-title);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.01em;
}

.page-about h1 {
  font-size: clamp(40px, 7vw, 68px);
  margin: 0 0 8px;
}

.page-about h2 {
  font-size: clamp(28px, 5vw, 44px);
  margin: 0 0 16px;
}

.page-about h3 {
  font-size: 20px;
  margin: 0 0 8px;
}

.page-about .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin: 0 0 40px;
  padding: 0;
  font-size: 14px;
  color: var(--color-gray);
}

.page-about .breadcrumb a {
  color: var(--color-fg);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast), border-color var(--t-fast);
}

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

.page-about .breadcrumb__sep {
  opacity: 0.6;
}

.page-about .about-hero {
  position: relative;
  border-bottom: 1px solid var(--color-primary);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-primary) 70%, transparent);
}

.page-about .about-hero__inner {
  padding: 88px 0 72px;
  position: relative;
}

.page-about .about-hero__layout {
  display: flex;
  flex-direction: column;
  gap: 44px;
  align-items: stretch;
}

.page-about .about-hero__copy {
  max-width: 760px;
}

.page-about .about-hero__lead {
  margin: 24px 0 28px;
  font-size: 17px;
  line-height: 1.7;
  max-width: 640px;
}

.page-about .about-hero__accent {
  display: block;
  color: var(--color-accent);
  text-shadow: 0 0 24px rgba(198, 255, 0, 0.35);
}

.page-about .about-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 40px;
}

.page-about .about-hero__stat {
  display: flex;
  flex-direction: column;
}

.page-about .about-hero__num {
  font-family: var(--font-title);
  font-size: 40px;
  line-height: 1;
  color: var(--color-fg);
}

.page-about .about-hero__label {
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--color-gray);
}

.page-about .about-hero__mark {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 220px;
  border: 1px solid var(--about-line);
  background:
    linear-gradient(135deg, rgba(74, 0, 224, 0.28), rgba(11, 30, 45, 0.92)),
    radial-gradient(circle at 80% 20%, rgba(198, 255, 0, 0.15), transparent 60%);
  box-shadow: 12px 12px 0 rgba(74, 0, 224, 0.25);
  clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 28px 100%, 0 calc(100% - 28px));
  padding: 32px;
  text-align: center;
}

.page-about .about-hero__slogan {
  font-family: var(--font-title);
  font-size: 34px;
  line-height: 1.05;
  letter-spacing: 0.02em;
  color: var(--color-fg);
  text-shadow: 0 0 14px rgba(198, 255, 0, 0.7);
}

.page-about .about-hero__version {
  margin-top: 8px;
  display: inline-block;
  border: 1px solid var(--color-accent);
  padding: 5px 12px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  background: var(--about-accent-soft);
}

.page-about .about-origin {
  padding: 72px 0;
  position: relative;
}

.page-about .about-origin__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: center;
}

.page-about .about-origin__content {
  max-width: 680px;
}

.page-about .about-origin__content p {
  line-height: 1.8;
  margin: 0 0 16px;
}

.page-about .about-origin__quote {
  margin: 24px 0;
  padding: 18px 24px;
  border-left: 4px solid var(--color-primary);
  background: rgba(74, 0, 224, 0.1);
  font-family: var(--font-accent);
  font-style: italic;
  font-size: 16px;
  color: var(--color-fg);
}

.page-about .about-origin__figure {
  margin: 0;
  border: 1px solid var(--about-line);
  background: var(--color-deep);
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 24px 100%, 0 calc(100% - 24px));
}

.page-about .about-origin__figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

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

.page-about .about-archive__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: stretch;
}

.page-about .about-archive__panel {
  padding: 32px;
  background: rgba(11, 15, 42, 0.05);
  border: 1px solid rgba(11, 15, 42, 0.14);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.2);
}

.page-about .about-archive__panel .eyebrow {
  color: var(--color-primary);
}

.page-about .about-archive__panel h2 {
  color: #0B0F2A;
}

.page-about .about-archive__panel p {
  line-height: 1.8;
  color: rgba(11, 15, 42, 0.82);
}

.page-about .about-archive__records {
  background: var(--color-bg);
  color: var(--color-fg);
  padding: 32px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-left: 4px solid var(--color-accent);
  box-shadow: 8px 8px 0 var(--about-accent-soft), 16px 16px 0 rgba(74, 0, 224, 0.18);
}

.page-about .about-archive__records h3 {
  font-size: 22px;
  margin-top: 0;
  color: var(--color-fg);
}

.page-about .about-archive__records ul {
  list-style: none;
  margin: 24px 0;
  padding: 0;
}

.page-about .about-archive__records li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px dashed rgba(245, 245, 247, 0.22);
  font-size: 14px;
}

.page-about .about-archive__records li span {
  color: var(--color-gray);
}

.page-about .about-archive__records li strong {
  color: var(--color-accent);
  font-weight: 600;
}

.page-about .about-archive__note {
  margin-top: 20px;
  font-size: 13px;
  color: var(--color-gray);
}

.page-about .about-timeline {
  padding: 72px 0;
  position: relative;
}

.page-about .about-timeline__head {
  max-width: 720px;
  margin-bottom: 36px;
}

.page-about .about-timeline__head p {
  color: var(--color-gray);
  line-height: 1.7;
}

.page-about .about-timeline__visual {
  width: 100%;
  height: auto;
  object-fit: cover;
  margin-bottom: 48px;
  border: 1px solid var(--about-line);
  clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 28px 100%, 0 calc(100% - 28px));
}

.page-about .about-timeline__axis {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-timeline__axis::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 12px;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-accent), var(--color-primary));
}

.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 36px 48px;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 8px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 2px solid var(--color-accent);
  box-shadow: 0 0 14px var(--color-accent), 0 0 30px rgba(198, 255, 0, 0.5);
}

.page-about .about-timeline__card {
  padding: 20px 22px;
  background: rgba(245, 245, 247, 0.05);
  border: 1px solid var(--about-line);
  border-radius: var(--radius-card);
  transition: transform var(--t-fast), border-color var(--t-fast), background-color var(--t-fast);
}

.page-about .about-timeline__item:hover .about-timeline__card,
.page-about .about-timeline__item:focus-within .about-timeline__card {
  transform: translateX(8px);
  border-color: var(--color-accent);
  background-color: rgba(74, 0, 224, 0.2);
}

.page-about .about-timeline__card h3 {
  margin: 0 0 8px;
  font-size: 20px;
  color: var(--color-fg);
}

.page-about .about-timeline__card p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(245, 245, 247, 0.78);
}

.page-about .about-tech {
  padding: 72px 0;
  background:
    radial-gradient(circle at 85% 15%, rgba(74, 0, 224, 0.35), transparent 60%),
    linear-gradient(120deg, var(--color-deep) 0%, #0D0F2E 60%, var(--color-bg) 100%);
  border-top: 1px solid var(--color-primary);
  border-bottom: 1px solid var(--color-primary);
}

.page-about .about-tech__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: center;
}

.page-about .about-tech__content p {
  line-height: 1.8;
}

.page-about .about-tech__list {
  list-style: none;
  padding: 0;
  margin: 28px 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px 20px;
}

.page-about .about-tech__num {
  display: block;
  font-family: var(--font-title);
  font-size: 44px;
  line-height: 1;
  color: var(--color-accent);
}

.page-about .about-tech__caption {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  color: rgba(245, 245, 247, 0.7);
}

.page-about .about-tech__note {
  font-size: 14px;
  color: rgba(245, 245, 247, 0.7);
  border-left: 3px solid var(--color-accent);
  padding-left: 16px;
  margin: 24px 0;
}

.page-about .about-tech__figure {
  margin: 0;
  position: relative;
  border: 1px solid var(--about-line);
  background: var(--color-bg);
  clip-path: polygon(0 24px, 24px 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}

.page-about .about-tech__figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-tech__figure::after {
  content: "";
  position: absolute;
  right: 12px;
  bottom: 12px;
  width: 64px;
  height: 28px;
  background: linear-gradient(90deg, var(--color-accent) 0 8px, transparent 8px 12px, var(--color-accent) 12px 20px, transparent 20px 24px, var(--color-accent) 24px 32px);
  opacity: 0.7;
}

@media (min-width: 900px) {
  .page-about .about-hero__layout {
    flex-direction: row;
    align-items: center;
  }

  .page-about .about-hero__copy {
    flex: 1.25;
  }

  .page-about .about-hero__mark {
    flex: 0.9;
    min-height: 260px;
  }

  .page-about .about-hero__lead {
    font-size: 19px;
  }

  .page-about .about-hero__num {
    font-size: 56px;
  }

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

  .page-about .about-origin__grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 64px;
  }

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

  .page-about .about-archive__layout {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
  }

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

  .page-about .about-timeline__axis {
    max-width: 1080px;
    margin: 0 auto;
  }

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

  .page-about .about-timeline__item {
    width: 50%;
    padding: 0 56px 48px 0;
    margin-left: 0;
  }

  .page-about .about-timeline__item:nth-child(even) {
    margin-left: 50%;
    padding: 0 0 48px 56px;
  }

  .page-about .about-timeline__item::before {
    left: auto;
    right: -7px;
  }

  .page-about .about-timeline__item:nth-child(even)::before {
    right: auto;
    left: -7px;
  }

  .page-about .about-timeline__item:hover .about-timeline__card,
  .page-about .about-timeline__item:focus-within .about-timeline__card {
    transform: translateX(2px);
  }

  .page-about .about-timeline__item:nth-child(even):hover .about-timeline__card,
  .page-about .about-timeline__item:nth-child(even):focus-within .about-timeline__card {
    transform: translateX(-2px);
  }

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

  .page-about .about-tech__grid {
    grid-template-columns: 1fr 0.85fr;
    gap: 64px;
  }

  .page-about .about-tech__num {
    font-size: 56px;
  }
}