.page-about {
  --paper-lines: repeating-linear-gradient(180deg, transparent 0px, transparent 23px, rgba(255,255,255,0.035) 23px, rgba(255,255,255,0.035) 24px);
  --paper-dots: radial-gradient(rgba(255,255,255,0.045) 1px, transparent 1px);
  --paper-size: 24px 24px;
  --sheet-shadow: 0 30px 60px rgba(0, 0, 0, 0.28);
  --gold-soft: rgba(212, 175, 55, 0.45);
  --red-soft: rgba(230, 57, 70, 0.14);
}

.page-about .archive-hero {
  position: relative;
  background:
    radial-gradient(ellipse at 82% -10%, rgba(212, 175, 55, 0.14), transparent 55%),
    radial-gradient(ellipse at 0% 110%, rgba(230, 57, 70, 0.06), transparent 50%);
}

.page-about .archive-hero__inner {
  position: relative;
  padding: clamp(1.4rem, 4vw, 3rem) 0 1.5rem;
  border-bottom: 1px solid rgba(58, 95, 138, 0.4);
}

.page-about .archive-hero__inner::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: min(180px, 45%);
  height: 3px;
  background: var(--gradient);
}

.page-about .archive-hero__topline {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem 1rem;
  margin-bottom: 1.8rem;
}

.page-about .archive-hero__meta {
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid rgba(212, 175, 55, 0.4);
  display: inline-block;
  padding: 0.4em 0.9em;
  background: rgba(11, 30, 58, 0.5);
}

.page-about .archive-hero__status {
  font-family: var(--font-data);
  font-size: 0.72rem;
  color: var(--red);
  border: 1px solid rgba(230, 57, 70, 0.4);
  padding: 0.4em 0.8em;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(230, 57, 70, 0.05);
}

.page-about .archive-hero__status::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--red);
  margin-right: 0.5em;
  vertical-align: 1px;
}

.page-about .archive-hero__title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.page-about .archive-hero__title-box {
  min-width: 0;
}

.page-about .archive-hero__title {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(1.8rem, 7vw, 4.2rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0;
  color: var(--text-primary);
  max-width: 11ch;
}

.page-about .archive-hero__sub {
  color: var(--text-secondary);
  font-size: 0.95rem;
  border-left: 3px solid var(--gold);
  padding-left: 0.9rem;
  max-width: 52ch;
  margin: 0.9rem 0 0.6rem;
  line-height: 1.6;
}

.page-about .archive-hero__desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 58ch;
  margin: 0;
}

.page-about .version-seal {
  flex: 0 0 64px;
  width: 64px;
  height: 64px;
}

.page-about .version-seal__svg {
  width: 100%;
  height: 100%;
  display: block;
  overflow: visible;
  filter: drop-shadow(0 0 14px rgba(212, 175, 55, 0.35));
}

.page-about .archive-index {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.6rem;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(58, 95, 138, 0.5);
}

.page-about .archive-index__item {
  font-family: var(--font-data);
  font-size: 0.76rem;
  color: var(--text-secondary);
  border: 1px solid rgba(58, 95, 138, 0.5);
  padding: 0.4em 0.8em;
  text-decoration: none;
  background: rgba(13, 36, 66, 0.4);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-about .archive-index__item span {
  color: var(--gold);
  margin-right: 0.35em;
}

.page-about .archive-index__item:hover {
  border-color: var(--gold);
  color: var(--gold-bright);
}

.page-about .manifesto {
  display: grid;
  gap: 1.2rem;
  padding-top: 2.5rem;
  padding-bottom: 2.5rem;
  margin-top: 0.5rem;
}

.page-about .archive-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-data);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  border-bottom: 2px solid var(--gold);
  padding-bottom: 0.4em;
  margin-bottom: 0.6rem;
}

.page-about .archive-label--centered {
  justify-content: center;
  margin-left: auto;
  margin-right: auto;
}

.page-about .manifesto__heading,
.page-about .milestones__heading,
.page-about .data-panel__heading,
.page-about .team-section__heading,
.page-about .vision-section__heading {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(1.5rem, 3.5vw, 2.5rem);
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: 0.2rem 0 0.5rem;
  color: var(--text-primary);
}

.page-about .manifesto__page-note {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0;
}

.page-about .archive-sheet {
  position: relative;
  isolation: isolate;
  background:
    var(--paper-dots),
    var(--paper-lines),
    linear-gradient(180deg, rgba(16, 42, 76, 0.6) 0%, rgba(13, 36, 66, 0.92) 100%);
  background-size: var(--paper-size), 100% 24px, 100% 100%;
  border: 1px solid rgba(58, 95, 138, 0.6);
  border-radius: 2px;
  padding: clamp(1.2rem, 3vw, 2rem);
  box-shadow: var(--sheet-shadow);
}

.page-about .archive-sheet::before {
  content: "";
  position: absolute;
  inset: 10px -10px 10px 10px;
  background: rgba(13, 36, 66, 0.4);
  border: 1px solid rgba(58, 95, 138, 0.3);
  z-index: -1;
  border-radius: 2px;
}

.page-about .manifesto__body p {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin: 0 0 1rem;
}

.page-about .manifesto__lead {
  font-size: 1.15rem;
  color: var(--text-primary);
  font-weight: 600;
}

.page-about .manifesto__body .btn {
  margin-top: 0.5rem;
}

.page-about .milestones {
  padding-top: 3rem;
}

.page-about .milestones__header {
  max-width: 720px;
  margin-bottom: 2rem;
}

.page-about .milestones__intro {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin: 0;
}

.page-about .milestones__layout {
  display: grid;
  gap: 2rem;
}

.page-about .timeline {
  position: relative;
  padding-left: 3rem;
}

.page-about .timeline-track {
  position: absolute;
  left: 12px;
  top: 14px;
  bottom: 14px;
  width: 1px;
  overflow: visible;
}

.page-about .timeline-track__svg {
  display: block;
  width: 1px;
  height: 100%;
}

.page-about .timeline-node {
  position: relative;
  margin-bottom: 0.9rem;
}

.page-about .timeline-node__summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.8rem 0.9rem;
  background: rgba(16, 42, 76, 0.72);
  border: 1px solid rgba(58, 95, 138, 0.45);
  transition: border-color 0.2s ease, background 0.2s ease;
}

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

.page-about .timeline-node__summary:hover {
  border-color: var(--gold);
  background: rgba(16, 42, 76, 0.92);
}

.page-about .timeline-node[open] .timeline-node__summary {
  border-bottom-color: rgba(212, 175, 55, 0.4);
}

.page-about .timeline-node__marker {
  flex: 0 0 24px;
  width: 24px;
  height: 24px;
}

.page-about .timeline-node__marker-svg {
  width: 24px;
  height: 24px;
  display: block;
}

.page-about .timeline-node__title {
  flex: 1;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-primary);
  line-height: 1.4;
}

.page-about .timeline-node__toggle {
  font-family: var(--font-data);
  color: var(--gold);
  font-size: 1.2rem;
  line-height: 1;
  transition: transform 0.25s ease;
}

.page-about .timeline-node[open] .timeline-node__toggle {
  transform: rotate(45deg);
}

.page-about .timeline-node__body {
  background: rgba(13, 36, 66, 0.7);
  border: 1px solid rgba(58, 95, 138, 0.35);
  border-top: 0;
  padding: 1rem 1rem 1.2rem;
  margin-bottom: 0.5rem;
}

.page-about .timeline-node__body p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0 0 0.6rem;
}

.page-about .timeline-node__body ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .timeline-node__body li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding-left: 1.2em;
  position: relative;
  margin-bottom: 0.3rem;
  line-height: 1.6;
}

.page-about .timeline-node__body li::before {
  content: "›";
  position: absolute;
  left: 0;
  color: var(--gold);
  font-weight: 700;
}

.page-about .milestone-figure {
  margin: 0;
  border: 1px solid rgba(58, 95, 138, 0.55);
  padding: 0.5rem;
  background: rgba(16, 42, 76, 0.45);
}

.page-about .milestone-figure__img {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-about .milestone-figure__caption {
  padding: 0.6rem 0.4rem 0.3rem;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  font-family: var(--font-data);
}

.page-about .data-section {
  padding-top: 3.5rem;
}

.page-about .data-panel {
  position: relative;
}

.page-about .data-panel::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 8px;
  height: 100%;
  background: linear-gradient(180deg, var(--gold) 0%, var(--red) 100%);
  opacity: 0.55;
  border-radius: 0 2px 2px 0;
}

.page-about .data-panel__header {
  display: grid;
  gap: 0.8rem;
  margin-bottom: 2rem;
}

.page-about .data-panel__desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  max-width: 52ch;
  margin: 0;
  line-height: 1.7;
}

.page-about .data-panel__desc a {
  color: var(--gold-bright);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.page-about .data-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(58, 95, 138, 0.35);
  border: 1px solid rgba(58, 95, 138, 0.35);
}

.page-about .stat-card {
  background: linear-gradient(160deg, rgba(16, 42, 76, 0.92) 0%, rgba(11, 30, 58, 0.97) 100%);
  padding: 1.4rem 1rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-height: 118px;
}

.page-about .stat-card__num {
  font-family: var(--font-data);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--gold);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.page-about .stat-card__label {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-primary);
}

.page-about .stat-card__note {
  font-size: 0.76rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.page-about .data-panel__foot {
  display: grid;
  gap: 0.8rem;
  padding-top: 1.6rem;
  margin-top: 2rem;
  border-top: 1px solid rgba(58, 95, 138, 0.5);
}

.page-about .data-panel__foot-item {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.4rem 0.5rem;
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.page-about .data-panel__foot-label {
  font-family: var(--font-data);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  border-left: 2px solid var(--gold);
  padding-left: 0.5rem;
}

.page-about .data-panel__foot-item strong {
  font-family: var(--font-data);
  color: var(--text-primary);
  font-size: 1.2rem;
}

.page-about .data-visual {
  margin: 1.5rem 0 0;
  border-left: 3px solid var(--gold);
  padding-left: 0.9rem;
}

.page-about .data-visual img {
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  border: 1px solid rgba(58, 95, 138, 0.5);
  display: block;
}

.page-about .data-visual figcaption {
  padding: 0.5rem 0 0;
  font-size: 0.78rem;
  color: var(--text-secondary);
  font-family: var(--font-data);
}

.page-about .team-section {
  display: grid;
  gap: 2rem;
  padding-top: 4rem;
}

.page-about .team-section__lead {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 1.02rem;
}

.page-about .team-section__content p {
  color: var(--text-secondary);
  line-height: 1.75;
  font-size: 0.93rem;
}

.page-about .credential-list {
  list-style: none;
  margin: 1.6rem 0 0;
  padding: 0;
  border-top: 1px solid rgba(58, 95, 138, 0.4);
}

.page-about .credential-list__item {
  display: flex;
  gap: 0.9rem;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(58, 95, 138, 0.28);
}

.page-about .credential-list__marker {
  flex: 0 0 10px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gold);
  margin-top: 0.42em;
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.18);
}

.page-about .credential-list__item strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.92rem;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}

.page-about .credential-list__item p {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.6;
}

.page-about .team-figure {
  margin: 0;
  border: 1px solid rgba(58, 95, 138, 0.5);
  padding: 0.4rem;
  background: rgba(16, 42, 76, 0.5);
}

.page-about .team-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
}

.page-about .team-figure figcaption {
  padding: 0.6rem 0.2rem 0.2rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-family: var(--font-data);
}

.page-about .team-note {
  margin-top: 1rem;
  padding: 0.8rem 1rem;
  border-left: 3px solid var(--red);
  background: rgba(230, 57, 70, 0.06);
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.page-about .team-note p {
  margin: 0;
}

.page-about .vision-section {
  padding-top: 4rem;
  padding-bottom: 1rem;
}

.page-about .vision-section__inner {
  position: relative;
  text-align: center;
  padding: clamp(2rem, 5vw, 3.5rem) clamp(1rem, 4vw, 2.5rem);
  background:
    linear-gradient(135deg, rgba(212, 175, 55, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse at center, rgba(16, 42, 76, 0.8) 0%, transparent 75%),
    var(--bg-tertiary);
  border: 1px solid rgba(212, 175, 55, 0.35);
  overflow: hidden;
}

.page-about .vision-section__inner::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

.page-about .vision-section__heading {
  margin: 0.6rem 0 1rem;
}

.page-about .vision-section__lead {
  font-size: 1.1rem;
  color: var(--text-primary);
  font-weight: 600;
  margin: 0 0 1rem;
}

.page-about .vision-section__inner p {
  color: var(--text-secondary);
  max-width: 68ch;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.75;
  font-size: 0.93rem;
}

.page-about .vision-section__links {
  display: flex;
  gap: 0.8rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 2rem;
}

@media (min-width: 768px) {
  .page-about .data-panel__foot {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 992px) {
  .page-about .version-seal {
    flex-basis: 140px;
    width: 140px;
    height: 140px;
  }

  .page-about .manifesto {
    grid-template-columns: 240px 1fr;
    gap: 3rem;
    padding-top: 3.5rem;
  }

  .page-about .milestones__layout {
    grid-template-columns: minmax(320px, 5fr) 6fr;
    gap: 3rem;
    align-items: start;
  }

  .page-about .data-panel__header {
    grid-template-columns: 1fr auto;
    align-items: end;
  }

  .page-about .data-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about .team-section {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 3.5rem;
    align-items: start;
  }
}