.page-about {
  --about-line-y: 260px;
  --about-node-size: 32px;
}

.page-about .page-container {
  padding-top: 0;
}

.page-about .about-breadcrumb {
  padding-top: 1.5rem;
}

.page-about .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
  color: var(--dim);
  font-size: 0.8125rem;
}

.page-about .breadcrumb a {
  color: var(--dim);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.page-about .breadcrumb-sep {
  color: var(--muted);
}

.page-about .about-hero {
  position: relative;
  padding: 2.5rem 0 2rem;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.05) 25%, transparent 25%) 0 0 / 48px 48px, linear-gradient(225deg, rgba(255, 107, 53, 0.04) 25%, transparent 25%) 0 0 / 48px 48px;
  pointer-events: none;
}

.page-about .about-hero-layout {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 1.5rem;
}

.page-about .about-hero-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.page-about .about-kicker {
  margin: 0 0 0.75rem;
  font-family: var(--font-data);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.page-about .about-hero-title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5.5vw, 3.5rem);
  line-height: 1.12;
  color: var(--white);
}

.page-about .about-hero-intro {
  margin: 0 0 1.5rem;
  max-width: 62ch;
  color: var(--dim);
  font-size: 1.0625rem;
  line-height: 1.8;
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-about .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.25rem;
  border-radius: 6px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.page-about .btn-primary {
  background: var(--accent);
  color: var(--bg-deep);
}

.page-about .btn-primary:hover {
  background: #ff8556;
  transform: translateY(-2px);
}

.page-about .btn-outline {
  border: 1px solid var(--border-strong);
  color: var(--white);
}

.page-about .btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.page-about .about-hero-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow-card);
}

.page-about .hero-panel-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.page-about .hero-panel-code {
  font-family: var(--font-data);
  font-size: 0.875rem;
  color: var(--muted);
}

.page-about .hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.page-about .hero-stat {
  padding-left: 0.875rem;
  border-left: 2px solid var(--accent-soft);
}

.page-about .hero-stat-value {
  display: block;
  font-family: var(--font-data);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  line-height: 1.1;
  color: var(--white);
}

.page-about .hero-stat-unit {
  margin-left: 0.125rem;
  font-size: 0.75em;
  color: var(--accent);
}

.page-about .hero-stat-label {
  display: block;
  margin-top: 0.25rem;
  color: var(--dim);
  font-size: 0.75rem;
}

.page-about .hero-panel-foot {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.8125rem;
}

.page-about .hero-foot-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
}

.page-about .section-head {
  margin-bottom: 1.75rem;
}

.page-about .section-meta {
  margin: 0 0 0.5rem;
  font-family: var(--font-data);
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  color: var(--accent);
  text-transform: uppercase;
}

.page-about .section-title {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  line-height: 1.2;
  color: var(--white);
}

.page-about .section-intro {
  margin: 0;
  max-width: 60ch;
  color: var(--dim);
  font-size: 1rem;
  line-height: 1.7;
}

.page-about .about-timeline-section {
  padding: 2.5rem 0 3rem;
  position: relative;
}

.page-about .about-timeline-layout {
  display: grid;
  gap: 1.5rem;
  align-items: start;
}

.page-about .about-timeline-figure {
  margin: 0;
}

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

.page-about .about-figure-cap {
  margin-top: 0.625rem;
  color: var(--muted);
  font-size: 0.8125rem;
  line-height: 1.6;
}

.page-about .about-timeline-figure-v3 {
  max-width: 540px;
  margin: 1.5rem 0 0 auto;
}

.page-about .about-timeline-scroll {
  position: relative;
  overflow-x: auto;
  padding-bottom: 0.75rem;
  -webkit-overflow-scrolling: touch;
}

.page-about .timeline-hint {
  display: none;
}

.page-about .timeline-track {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  min-width: 0;
  padding: 0;
}

.page-about .timeline-line {
  display: none;
}

.page-about .timeline-item {
  position: relative;
  width: 100%;
  margin-left: 48px;
  margin-bottom: 0.5rem;
}

.page-about .timeline-item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: -16px;
  width: 2px;
  height: calc(100% + 16px);
  background: linear-gradient(180deg, transparent, var(--accent) 10%, rgba(255, 107, 53, 0.4) 90%, transparent);
}

.page-about .timeline-node {
  position: absolute;
  left: -44px;
  top: 24px;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--about-node-size);
  height: var(--about-node-size);
  border-radius: 50%;
  background: var(--accent);
  color: var(--white);
  font-family: var(--font-data);
  font-size: 0.6875rem;
  font-weight: 700;
  box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.2), 0 0 16px rgba(255, 107, 53, 0.5);
}

.page-about .timeline-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.125rem;
  box-shadow: var(--shadow-card);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.page-about .timeline-item:hover .timeline-card {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
}

.page-about .timeline-year {
  display: inline-block;
  margin-bottom: 0.5rem;
  font-family: var(--font-data);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--accent);
}

.page-about .timeline-card h3 {
  margin: 0 0 0.625rem;
  font-family: var(--font-display);
  font-size: 1.125rem;
  line-height: 1.3;
  color: var(--white);
}

.page-about .timeline-card p {
  margin: 0 0 0.875rem;
  color: var(--dim);
  font-size: 0.875rem;
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.page-about .timeline-tag {
  display: inline-block;
  padding: 0.3rem 0.5rem;
  border: 1px solid rgba(0, 230, 118, 0.25);
  border-radius: 4px;
  background: rgba(0, 230, 118, 0.08);
  font-family: var(--font-data);
  font-size: 0.6875rem;
  color: var(--green);
}

.page-about .about-philosophy {
  padding: 2.5rem 0;
}

.page-about .philosophy-layout {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.page-about .philosophy-lead {
  margin: 0 0 1.5rem;
  color: var(--dim);
  font-size: 1.0625rem;
  line-height: 1.8;
}

.page-about .philosophy-list {
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .philosophy-list li {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding-left: 1rem;
  border-left: 2px solid var(--border-strong);
}

.page-about .philosophy-index {
  flex: 0 0 auto;
  font-family: var(--font-data);
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--accent);
}

.page-about .philosophy-text {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.page-about .philosophy-text strong {
  color: var(--white);
  font-size: 1rem;
}

.page-about .philosophy-text span {
  color: var(--dim);
  font-size: 0.875rem;
  line-height: 1.6;
}

.page-about .philosophy-visual {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.page-about .visual-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
}

.page-about .visual-version {
  font-family: var(--font-data);
  font-size: 0.75rem;
  color: var(--muted);
}

.page-about .visual-score-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 1.25rem;
}

.page-about .visual-score {
  padding: 0.875rem;
  background: var(--bg-deep);
  border-radius: var(--radius);
  text-align: center;
}

.page-about .visual-score-label {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--dim);
  font-size: 0.75rem;
}

.page-about .visual-score-num {
  display: block;
  font-family: var(--font-data);
  font-size: 2rem;
  line-height: 1.1;
  color: var(--white);
}

.page-about .visual-percent {
  margin-left: 0.125rem;
  font-size: 1rem;
  color: var(--dim);
}

.page-about .visual-small {
  font-family: var(--font-data);
  font-size: 0.6875rem;
}

.page-about .up {
  color: var(--green);
}

.page-about .down {
  color: var(--red);
}

.page-about .visual-mid {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--accent);
}

.page-about .visual-bar-chart {
  display: flex;
  height: 10px;
  margin-bottom: 1.25rem;
  overflow: hidden;
  border-radius: 6px;
  background: var(--bg-deep);
}

.page-about .bar-a {
  width: 58%;
  background: linear-gradient(90deg, var(--accent), #ff8556);
}

.page-about .bar-b {
  width: 42%;
  background: linear-gradient(90deg, var(--green), #00c853);
}

.page-about .visual-heat {
  height: 120px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background-color: rgba(16, 42, 84, 0.6);
  background-image:
    radial-gradient(circle at 22% 30%, rgba(255, 107, 53, 0.62) 0 12%, transparent 14%),
    radial-gradient(circle at 42% 68%, rgba(255, 107, 53, 0.28) 0 9%, transparent 11%),
    radial-gradient(circle at 64% 24%, rgba(0, 230, 118, 0.45) 0 15%, transparent 17%),
    radial-gradient(circle at 82% 56%, rgba(0, 230, 118, 0.22) 0 8%, transparent 10%);
}

.page-about .about-values {
  padding: 2.5rem 0;
}

.page-about .values-grid {
  display: grid;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.page-about .value-card {
  position: relative;
  overflow: hidden;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.page-about .value-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
}

.page-about .value-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.page-about .value-index {
  font-family: var(--font-data);
  font-size: 0.875rem;
  color: var(--muted);
}

.page-about .value-card h3 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  line-height: 1.3;
  color: var(--white);
}

.page-about .value-card p {
  margin: 0 0 1rem;
  color: var(--dim);
  font-size: 0.875rem;
  line-height: 1.7;
}

.page-about .value-points {
  display: grid;
  gap: 0.5rem;
  margin: 0;
  padding: 1rem 0 0;
  list-style: none;
  border-top: 1px solid var(--border);
}

.page-about .value-points li {
  position: relative;
  padding-left: 1rem;
  color: var(--dim);
  font-size: 0.8125rem;
  line-height: 1.5;
}

.page-about .value-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--accent);
}

.page-about .about-future {
  padding: 2.5rem 0 3rem;
}

.page-about .future-inner {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 4vw, 3rem);
  border: 1px solid var(--border);
  border-radius: 12px;
  background: linear-gradient(135deg, var(--bg-panel), var(--bg-card));
}

.page-about .future-inner::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(135deg, rgba(255, 107, 53, 0.06) 25%, transparent 25%);
  background-size: 32px 32px;
  pointer-events: none;
}

.page-about .future-inner > * {
  position: relative;
  z-index: 1;
}

.page-about .future-lead {
  margin: 0 0 1.5rem;
  max-width: 58ch;
  color: var(--dim);
  font-size: 1.0625rem;
  line-height: 1.8;
}

.page-about .future-goals {
  display: grid;
  gap: 1rem;
  margin: 1.5rem 0;
}

.page-about .future-goal {
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(16, 42, 84, 0.5);
}

.page-about .future-goal-num {
  display: block;
  margin-bottom: 0.5rem;
  font-family: var(--font-data);
  font-size: 0.75rem;
  color: var(--accent);
}

.page-about .future-goal h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.125rem;
  color: var(--white);
}

.page-about .future-goal p {
  margin: 0;
  color: var(--dim);
  font-size: 0.875rem;
  line-height: 1.6;
}

.page-about .future-foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.page-about .future-foot p {
  margin: 0;
  max-width: 42ch;
  color: var(--muted);
  font-size: 0.875rem;
  line-height: 1.6;
}

.page-about .future-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-about .about-stadium {
  position: relative;
  margin: 0;
  overflow: hidden;
}

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

.page-about .about-stadium-cap {
  position: absolute;
  left: 5%;
  bottom: 1rem;
  max-width: 32ch;
  padding: 0.75rem 1rem;
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  background: rgba(0, 0, 0, 0.55);
  color: var(--white);
  font-size: 0.875rem;
  line-height: 1.5;
}

@media (min-width: 768px) {

  .page-about .about-hero-layout {
    grid-template-columns: 1.08fr 0.92fr;
    align-items: stretch;
  }

  .page-about .about-hero {
    padding: 3rem 0 2.5rem;
  }

  .page-about .about-timeline-layout {
    grid-template-columns: 280px minmax(0, 1fr);
  }

  .page-about .about-timeline-figure-start {
    position: sticky;
    top: 1rem;
  }

  .page-about .timeline-hint {
    display: block;
    margin: 0 0 0.5rem;
    text-align: right;
    font-family: var(--font-data);
    font-size: 0.75rem;
    color: var(--muted);
  }

  .page-about .timeline-track {
    flex-direction: row;
    gap: 1.25rem;
    min-width: 960px;
    padding: 0 1rem 1rem;
  }

  .page-about .timeline-line {
    position: absolute;
    top: var(--about-line-y);
    left: 0;
    right: 0;
    display: block;
    height: 3px;
    background: linear-gradient(90deg, transparent, rgba(255, 107, 53, 0.9) 6%, rgba(255, 107, 53, 0.9) 94%, transparent);
  }

  .page-about .timeline-item {
    flex: 0 0 280px;
    width: 280px;
    height: 520px;
    margin-left: 0;
    margin-bottom: 0;
    display: flex;
    flex-direction: column;
  }

  .page-about .timeline-item:nth-of-type(even) {
    justify-content: flex-start;
  }

  .page-about .timeline-item:nth-of-type(odd) {
    justify-content: flex-end;
  }

  .page-about .timeline-item::before {
    display: none;
  }

  .page-about .timeline-node {
    position: absolute;
    top: var(--about-line-y);
    left: 50%;
    width: var(--about-node-size);
    height: var(--about-node-size);
    transform: translate(-50%, -50%);
  }

  .page-about .timeline-card {
    height: 240px;
  }

  .page-about .philosophy-layout {
    grid-template-columns: 1.05fr 0.95fr;
  }

  .page-about .values-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .future-goals {
    grid-template-columns: repeat(2, 1fr);
  }

}

@media (min-width: 1024px) {

  .page-about .about-hero-layout {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 2.5rem;
  }

  .page-about .about-timeline-layout {
    grid-template-columns: 320px minmax(0, 1fr);
    gap: 2rem;
  }

  .page-about .philosophy-layout {
    gap: 3rem;
  }

}

@media (max-width: 640px) {

  .page-about .about-stadium-cap {
    position: static;
    margin-top: 0.5rem;
    background: transparent;
    border-left: 3px solid var(--accent);
    padding: 0.5rem 0.75rem;
  }

}