.page-about {
  --page-surface: rgba(245, 242, 235, 0.04);
  --page-edge: rgba(245, 242, 235, 0.1);
  --page-glow-cyan: rgba(0, 240, 255, 0.28);
  --page-glow-purple: rgba(177, 78, 255, 0.32);
  --page-radius: 16px;
  overflow: clip;
}

.page-about__manifesto {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 56px 0 72px;
}

.page-about__manifesto-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.page-about__manifesto-bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-about__manifesto-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  background:
    radial-gradient(circle at 72% 22%, rgba(177, 78, 255, 0.22), transparent 44%),
    linear-gradient(180deg, rgba(11, 27, 47, 0.82) 0%, rgba(11, 27, 47, 0.62) 48%, var(--c-bg) 98%);
}

.page-about__manifesto-inner {
  position: relative;
  z-index: 3;
  max-width: 840px;
  margin-inline: 0;
}

.page-about__manifesto-inner .breadcrumbs {
  margin-bottom: 28px;
}

.page-about__manifesto-inner .section-index__kicker {
  margin-bottom: 0;
}

.page-about__manifesto h1 {
  margin: 16px 0 18px;
  font-size: 1.85rem;
  line-height: 1.28;
  letter-spacing: 0.02em;
}

.page-about__manifesto-lead {
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.7;
  color: var(--c-paper);
  max-width: 660px;
  margin: 0 0 12px;
}

.page-about__manifesto-text {
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(245, 242, 235, 0.86);
  max-width: 660px;
  margin: 0;
}

.page-about__manifesto-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.page-about__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  padding-block: 40px 56px;
}

.page-about__index {
  border: 1px solid var(--page-edge);
  background: linear-gradient(180deg, rgba(61, 46, 136, 0.22), rgba(11, 27, 47, 0.44));
  border-radius: var(--page-radius);
  padding: 20px;
}

.page-about__index-label {
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-cyan);
  margin: 0 0 14px;
}

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

.page-about__index-list a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.95rem;
  font-weight: 500;
  color: rgba(245, 242, 235, 0.82);
  text-decoration: none;
  border: 1px solid var(--page-edge);
  padding: 8px 10px;
  border-radius: 10px;
  transition: border-color 0.18s ease, color 0.18s ease, background 0.18s ease;
}

.page-about__index-list a:hover {
  border-color: var(--c-cyan);
  color: var(--c-cyan);
  background: rgba(0, 240, 255, 0.08);
}

.page-about__index-no {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--c-primary);
}

.page-about__index-aside {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed var(--page-edge);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about__index-aside p {
  flex-basis: 100%;
  font-size: 0.88rem;
  line-height: 1.6;
  color: rgba(245, 242, 235, 0.6);
  margin: 0;
}

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

.page-about__section {
  position: relative;
  padding: 32px 20px;
  border-radius: 24px 4px 24px 4px;
  margin-top: 28px;
}

.page-about__section p {
  line-height: 1.8;
  color: rgba(245, 242, 235, 0.84);
}

.page-about__section--facts {
  background: linear-gradient(135deg, rgba(0, 95, 106, 0.14), rgba(11, 27, 47, 0.22) 58%);
}

.page-about__section--timeline {
  background: linear-gradient(160deg, rgba(122, 32, 72, 0.14), rgba(11, 27, 47, 0.22) 60%);
}

.page-about__section--certifications {
  background: linear-gradient(140deg, rgba(61, 46, 136, 0.2), rgba(11, 27, 47, 0.24) 58%);
}

.page-about__section--honors {
  background: linear-gradient(135deg, rgba(177, 78, 255, 0.12), rgba(11, 27, 47, 0.22) 56%);
}

.page-about__section--ecosystem {
  background: linear-gradient(165deg, rgba(0, 95, 106, 0.16), rgba(11, 27, 47, 0.26) 62%);
}

.page-about__section--team {
  background: radial-gradient(circle at 82% 0%, rgba(177, 78, 255, 0.12), transparent 56%), rgba(11, 27, 47, 0.24);
}

.page-about__section--contact {
  background: linear-gradient(135deg, rgba(122, 32, 72, 0.14), rgba(11, 27, 47, 0.2));
}

.page-about__facts-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 24px 0 0;
}

.page-about__fact {
  margin: 0;
  padding: 22px 18px 18px;
  background: var(--page-surface);
  border: 1px solid var(--page-edge);
  border-radius: 14px 2px 14px 2px;
  position: relative;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.page-about__fact:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 240, 255, 0.45);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.22);
}

.page-about__fact dt {
  font-size: 0.85rem;
  line-height: 1.5;
  color: rgba(245, 242, 235, 0.66);
  margin-bottom: 10px;
}

.page-about__fact-dd,
.page-about__fact dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--c-cyan);
  text-shadow: 0 0 16px var(--page-glow-cyan);
}

.page-about__fact-num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--c-cyan);
  text-shadow: 0 0 16px var(--page-glow-cyan);
}

.page-about__fact-num--purple {
  color: var(--c-primary);
  text-shadow: 0 0 16px var(--page-glow-purple);
}

.page-about__timeline-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
}

.page-about__timeline-item {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 16px;
  padding-bottom: 34px;
}

.page-about__timeline-year {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-primary);
  text-align: right;
  padding-top: 6px;
  letter-spacing: 0.04em;
}

.page-about__timeline-card {
  border-left: 2px solid rgba(0, 240, 255, 0.35);
  border-radius: 0 14px 14px 2px;
  padding: 16px 18px;
  background: var(--page-surface);
  position: relative;
}

.page-about__timeline-card::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 20px;
  width: 10px;
  height: 10px;
  background: var(--c-cyan);
  transform: rotate(45deg);
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.35);
}

.page-about__timeline-card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.page-about__timeline-card p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.75;
  color: rgba(245, 242, 235, 0.76);
}

.page-about__timeline-item:nth-child(2n) .page-about__timeline-card {
  border-left-color: rgba(177, 78, 255, 0.55);
}

.page-about__timeline-item:nth-child(2n) .page-about__timeline-card::before {
  background: var(--c-primary);
  box-shadow: 0 0 10px rgba(177, 78, 255, 0.32);
}

.page-about__timeline-item:nth-child(3n) .page-about__timeline-card {
  border-left-color: rgba(122, 32, 72, 0.72);
}

.page-about__timeline-item:nth-child(3n) .page-about__timeline-card::before {
  background: #a44a72;
  box-shadow: 0 0 10px rgba(122, 32, 72, 0.32);
}

.page-about__cert-grid {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

.page-about__cert-card {
  padding: 24px 20px;
  border-radius: 18px 2px 18px 2px;
}

.page-about__cert-card svg {
  width: 36px;
  height: 36px;
  color: var(--c-cyan);
  margin-bottom: 16px;
}

.page-about__cert-card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.page-about__cert-card p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: rgba(245, 242, 235, 0.76);
}

.page-about__honors-grid {
  display: grid;
  gap: 28px;
  margin-top: 8px;
}

.page-about__honor-item {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--page-edge);
}

.page-about__honor-item:first-of-type {
  border-top: 1px solid var(--page-edge);
}

.page-about__honor-item svg {
  width: 32px;
  height: 32px;
  flex: 0 0 auto;
  color: var(--c-primary);
}

.page-about__honor-item h3 {
  margin: 0 0 6px;
  font-size: 1rem;
}

.page-about__honor-item p {
  margin: 0;
  font-size: 0.9rem;
  color: rgba(245, 242, 235, 0.7);
}

.page-about__honor-visual {
  margin: 0;
}

.page-about__honor-visual img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 20px;
  border: 1px solid var(--page-edge);
}

.page-about__eco-grid {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.page-about__eco-card {
  border-radius: 18px 2px 18px 2px;
  padding: 24px 20px;
}

.page-about__eco-metric {
  font-family: var(--font-mono);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--c-cyan);
  margin: 0 0 8px;
  line-height: 1;
}

.page-about__eco-card h3 {
  margin: 0 0 10px;
  font-size: 1.05rem;
}

.page-about__eco-card p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: rgba(245, 242, 235, 0.76);
}

.page-about__eco-figure {
  margin: 20px 0 0;
}

.page-about__eco-figure img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 20px;
  border: 1px solid var(--page-edge);
}

.page-about__eco-figure figcaption {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: rgba(245, 242, 235, 0.55);
  margin-top: 10px;
}

.page-about__team-grid {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.page-about__team-card {
  border: 1px solid var(--page-edge);
  border-top: 3px solid var(--c-primary);
  border-radius: 0 0 14px 14px;
  padding: 20px;
  background: rgba(11, 27, 47, 0.4);
}

.page-about__team-card:nth-child(2) {
  border-top-color: var(--c-cyan);
}

.page-about__team-card:nth-child(3) {
  border-top-color: #a44a72;
}

.page-about__team-card h3 {
  margin: 0 0 10px;
  font-size: 1rem;
}

.page-about__team-card p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: rgba(245, 242, 235, 0.76);
}

.page-about__contact-inner {
  margin-top: 24px;
  border: 1px solid var(--page-edge);
  border-left: 3px solid var(--c-wine);
  padding: 24px;
  border-radius: 0 16px 16px 0;
  background: rgba(122, 32, 72, 0.08);
}

.page-about__contact-inner p {
  margin: 0 0 20px;
}

.page-about__contact-list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about__contact-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.95rem;
  line-height: 1.6;
  color: rgba(245, 242, 235, 0.86);
}

.page-about__contact-list span {
  color: var(--c-primary);
  min-width: 72px;
}

.page-about__contact-inner .btn {
  margin-top: 4px;
}

@media (min-width: 720px) {
  .page-about__manifesto {
    padding: 72px 0 96px;
  }

  .page-about__manifesto h1 {
    font-size: 2.25rem;
    line-height: 1.24;
  }

  .page-about__manifesto-lead {
    font-size: 1.25rem;
  }

  .page-about__section {
    padding: 40px 28px;
    margin-top: 32px;
  }

  .page-about__facts-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
  }

  .page-about__timeline-item {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 32px;
    padding-bottom: 44px;
  }

  .page-about__timeline-year {
    font-size: 1.05rem;
    padding-top: 8px;
  }

  .page-about__cert-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-about__honors-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
    gap: 40px;
  }

  .page-about__eco-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-about__team-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-about__contact-inner {
    padding: 32px;
  }
}

@media (min-width: 860px) {
  .page-about__layout {
    grid-template-columns: 248px minmax(0, 1fr);
    gap: 56px;
    padding-block: 56px 80px;
  }

  .page-about__index {
    position: sticky;
    top: 24px;
    padding: 24px 20px;
  }

  .page-about__index-list {
    display: block;
  }

  .page-about__index-list li + li {
    margin-top: 4px;
  }

  .page-about__index-list a {
    display: block;
    width: 100%;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    padding: 9px 12px;
    background: transparent;
    font-weight: 400;
  }

  .page-about__index-list a:hover {
    border-left-color: var(--c-cyan);
    background: rgba(0, 240, 255, 0.06);
    color: var(--c-cyan);
  }
}