.page-about {
  --about-gold-line: rgba(214, 160, 44, 0.5);
  --about-gold-soft: rgba(214, 160, 44, 0.14);
  --about-red-soft: rgba(200, 16, 46, 0.1);
  --about-shadow: 8px 8px 0 rgba(20, 20, 20, 0.06);
  background:
    radial-gradient(circle at 88% 4%, var(--about-gold-soft), transparent 20rem),
    radial-gradient(circle at 4% 28%, var(--about-red-soft), transparent 26rem),
    linear-gradient(180deg, var(--paper-white) 0%, #FBF9F3 60%, #EFEBE0 100%);
}

.page-about .page-container {
  width: 100%;
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: clamp(18px, 5vw, 48px);
}

.page-about .about-shell {
  padding-bottom: 24px;
}

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

.page-about .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding-top: 22px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--slate);
}

.page-about .breadcrumb a {
  color: var(--muted-red);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

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

.page-about .crumb-sep {
  color: var(--gold);
}

.page-about .about-intro {
  padding-top: 36px;
}

.page-about .intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  align-items: center;
}

.page-about h1 {
  font-size: clamp(1.85rem, 4vw, 3.05rem);
  line-height: 1.12;
  margin: 0 0 18px;
  font-weight: 900;
  color: var(--milan-black);
  letter-spacing: -0.02em;
}

.page-about .intro-lead {
  font-size: 1.12rem;
  line-height: 1.6;
  color: var(--deep-gray);
  margin: 0 0 16px;
}

.page-about .intro-copy p {
  margin: 0 0 14px;
  color: var(--ink);
  line-height: 1.65;
}

.page-about .intro-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.page-about .tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(214, 160, 44, 0.45);
  color: var(--deep-gray);
  border-radius: var(--radius-pill);
  padding: 5px 10px;
  font-size: 0.78rem;
  font-family: var(--font-mono);
}

.page-about .tag-chip::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--gold);
  transform: rotate(45deg);
}

.page-about .about-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.page-about .btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out), background 0.25s;
}

.page-about .btn-outline {
  border: 1px solid var(--gold);
  color: var(--milan-red);
  background: rgba(255, 255, 255, 0.6);
}

.page-about .btn-outline:hover {
  background: var(--gold-light);
}

.page-about .btn-sm {
  padding: 8px 14px;
  font-size: 0.85rem;
}

.page-about .visual-frame {
  position: relative;
  background: linear-gradient(135deg, var(--deep-gray), var(--milan-black));
  border: 1px solid rgba(214, 160, 44, 0.35);
  border-radius: var(--radius-md);
  padding: 10px;
  box-shadow: 12px 14px 0 rgba(20, 20, 20, 0.08);
}

.page-about .visual-frame img {
  border-radius: calc(var(--radius-md) - 5px);
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .route-line {
  position: absolute;
  right: 10px;
  bottom: 10px;
  width: 62%;
  height: auto;
  pointer-events: none;
  opacity: 0.9;
}

.page-about .route-path {
  fill: none;
  stroke: var(--gold-light);
  stroke-width: 2.5;
  stroke-linecap: round;
}

.js .page-about .route-path {
  stroke-dasharray: 520;
  stroke-dashoffset: 520;
  transition: stroke-dashoffset 1.4s var(--ease-out);
}

.js .page-about [data-revealed] .route-path {
  stroke-dashoffset: 0;
}

.page-about .route-dot {
  fill: var(--milan-red);
  stroke: var(--gold-light);
  stroke-width: 1.5;
}

.page-about .visual-caption {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--slate);
  letter-spacing: 0.02em;
}

.page-about .section-index {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: var(--gold);
  margin: 0 0 12px;
  text-transform: uppercase;
}

.page-about .section-index::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--milan-red);
  transform: rotate(45deg);
  flex: 0 0 auto;
}

.page-about .section-index::after {
  content: "";
  flex: 0 0 48px;
  height: 1px;
  background: linear-gradient(90deg, var(--gold), transparent);
}

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

.page-about h2 {
  font-size: clamp(1.65rem, 3vw, 2.55rem);
  line-height: 1.15;
  margin: 0 0 12px;
  color: var(--milan-black);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-about .section-desc {
  margin: 0;
  color: var(--slate);
  line-height: 1.7;
  max-width: 680px;
}

.page-about h3 {
  margin: 0 0 8px;
  font-weight: 800;
  color: var(--milan-black);
}

.page-about .about-dev,
.page-about .about-system,
.page-about .about-team,
.page-about .about-responsible {
  margin-top: 70px;
}

.page-about .rule-line {
  height: 1px;
  background: linear-gradient(90deg, var(--gold), rgba(214, 160, 44, 0));
  margin: 18px 0 34px;
}

.page-about .timeline {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-about .timeline-item {
  position: relative;
  padding-left: 30px;
}

.page-about .timeline-item::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 5px;
  width: 12px;
  height: 12px;
  background: var(--milan-red);
  transform: rotate(45deg);
  border: 2px solid var(--paper-white);
  box-shadow: 0 0 0 2px var(--gold);
  z-index: 2;
}

.page-about .timeline-item::after {
  content: "";
  position: absolute;
  left: 8px;
  top: 16px;
  bottom: -20px;
  width: 1px;
  background: linear-gradient(180deg, var(--about-gold-line), rgba(214, 160, 44, 0.05));
}

.page-about .timeline-item:last-child::after {
  display: none;
}

.page-about .timeline-marker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.page-about .t-year {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.05em;
}

.page-about .t-count {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--slate);
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(214, 160, 44, 0.35);
  border-radius: var(--radius-pill);
  padding: 2px 8px;
}

.page-about .t-card {
  background: var(--pure-white);
  border: 1px solid rgba(20, 20, 20, 0.07);
  border-top: 4px solid var(--milan-red);
  border-radius: var(--radius-sm);
  padding: 18px 20px 20px;
  box-shadow: var(--about-shadow);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}

.page-about .t-card p {
  margin: 0;
  line-height: 1.7;
  color: var(--ink);
  font-size: 0.94rem;
}

@media (hover: hover) {
  .page-about .timeline-item:hover .t-card {
    transform: translateX(4px);
    box-shadow: 10px 12px 0 rgba(20, 20, 20, 0.08);
  }
}

.page-about .system-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: start;
  margin-top: 28px;
}

.page-about .system-media {
  background: var(--deep-gray);
  border: 1px solid rgba(214, 160, 44, 0.25);
  border-radius: var(--radius-md);
  padding: 10px;
  box-shadow: 10px 10px 0 rgba(20, 20, 20, 0.07);
}

.page-about .system-media img {
  border-radius: calc(var(--radius-md) - 5px);
  width: 100%;
  height: auto;
  object-fit: contain;
}

.page-about .system-cards {
  display: grid;
  gap: 16px;
}

.page-about .system-card {
  border: 1px solid rgba(214, 160, 44, 0.28);
  border-left: 6px solid var(--milan-red);
  background: var(--pure-white);
  border-radius: var(--radius-sm);
  padding: 24px 22px 20px;
  box-shadow: var(--about-shadow);
  position: relative;
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}

.page-about .system-num {
  position: absolute;
  top: 16px;
  right: 18px;
  font-family: var(--font-mono);
  font-size: 1.6rem;
  line-height: 1;
  color: rgba(214, 160, 44, 0.28);
  font-weight: 700;
}

.page-about .system-card h3 {
  padding-right: 34px;
}

.page-about .system-card p {
  margin: 0 0 12px;
  color: var(--ink);
  line-height: 1.7;
  font-size: 0.94rem;
}

@media (hover: hover) {
  .page-about .system-card:hover {
    transform: translateY(-3px);
    box-shadow: 10px 14px 0 rgba(20, 20, 20, 0.08);
  }
}

.page-about .data-pill {
  display: inline-flex;
  align-items: center;
  background: var(--milan-red);
  color: var(--pure-white);
  border-radius: var(--radius-pill);
  padding: 4px 11px;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
}

.page-about .team-media {
  margin-top: 30px;
  overflow: hidden;
  background: var(--deep-gray);
  border: 1px solid rgba(214, 160, 44, 0.28);
  border-radius: var(--radius-md);
  box-shadow: var(--about-shadow);
}

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

.page-about .team-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  margin-top: 28px;
}

.page-about .team-copy p {
  color: var(--ink);
  line-height: 1.75;
  margin: 0 0 14px;
}

.page-about .team-copy ul {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
}

.page-about .team-copy li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 10px;
  color: var(--ink);
  line-height: 1.7;
  font-size: 0.92rem;
}

.page-about .team-copy li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.55em;
  width: 8px;
  height: 8px;
  background: var(--gold);
  transform: rotate(45deg);
}

.page-about .team-note {
  font-size: 0.9rem;
  color: var(--slate);
  border-left: 2px solid var(--gold);
  padding-left: 12px;
}

.page-about .team-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.page-about .stat-card {
  background: var(--pure-white);
  border: 1px solid rgba(214, 160, 44, 0.25);
  border-radius: var(--radius-sm);
  padding: 18px 14px;
  box-shadow: 0 4px 0 rgba(20, 20, 20, 0.05);
}

.page-about .stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--milan-red);
  line-height: 1.1;
}

.page-about .stat-label {
  display: block;
  margin-top: 5px;
  font-size: 0.78rem;
  color: var(--slate);
  line-height: 1.35;
}

.page-about .print-frame {
  position: relative;
  background: linear-gradient(135deg, var(--pure-white), #FBF9F3);
  border: 1px solid rgba(214, 160, 44, 0.35);
  border-radius: var(--radius-md);
  padding: 26px 28px;
  box-shadow: 10px 10px 0 rgba(214, 160, 44, 0.16);
}

.page-about .callout h3 {
  margin-bottom: 10px;
}

.page-about .callout p {
  margin: 0;
  color: var(--ink);
  line-height: 1.75;
}

.page-about .callout a {
  color: var(--milan-red);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.page-about .aside-note {
  border-left: 3px solid var(--gold);
  background: rgba(214, 160, 44, 0.1);
  padding: 16px 20px;
  margin-top: 22px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--deep-gray);
  line-height: 1.7;
  font-size: 0.92rem;
}

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

.page-about .end-note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 34px;
  padding-top: 20px;
  border-top: 1px solid rgba(20, 20, 20, 0.1);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.page-about .end-note a {
  color: var(--muted-red);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}

.page-about .end-note a:hover {
  color: var(--gold);
  border-color: var(--gold);
}

.page-about .end-note span {
  color: var(--gold);
}

.page-about [data-reveal] {
  transition: opacity 0.55s var(--ease-out), transform 0.55s var(--ease-out);
}

.js .page-about [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
}

.js .page-about [data-reveal][data-revealed] {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .js .page-about [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
    transition: none;
  }

  .page-about .route-path {
    stroke-dashoffset: 0 !important;
    transition: none;
  }
}

@media (min-width: 760px) {
  .page-about .intro-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
    gap: 44px;
    align-items: center;
  }

  .page-about .system-layout {
    grid-template-columns: minmax(260px, 320px) minmax(0, 1fr);
    gap: 36px;
  }

  .page-about .system-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .team-grid {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 0.85fr);
    gap: 36px;
    align-items: start;
  }

  .page-about .team-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-about .team-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}