.page-about {
  --about-red-glow: rgba(213, 0, 50, 0.32);
  --about-gold-soft: rgba(255, 215, 0, 0.14);
  --about-line: rgba(255, 255, 255, 0.08);
  background: var(--bg-light);
  color: #1A1A1A;
  overflow-x: clip;
}

.page-about .section-title-text {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-about .section-title-text h2 {
  margin: 0;
}

.page-about .section-title-text p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.page-about .section-title-light .section-title-text p {
  color: rgba(255, 255, 255, 0.58);
}

.page-about .about-hero {
  position: relative;
  padding: 64px 0 72px;
  background:
    linear-gradient(120deg, rgba(14, 14, 16, 0.96) 0%, rgba(139, 0, 0, 0.88) 48%, rgba(213, 0, 50, 0.92) 100%),
    radial-gradient(circle at 82% 20%, rgba(57, 255, 20, 0.14) 0%, transparent 48%);
  color: var(--text-primary);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "MILAN DATA / ABOUT";
  position: absolute;
  top: 22px;
  right: 12px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  color: rgba(255, 255, 255, 0.26);
  transform: rotate(90deg);
  transform-origin: right center;
  white-space: nowrap;
}

.page-about .about-hero-grid {
  display: grid;
  gap: 44px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.page-about .about-hero-content {
  max-width: 640px;
}

.page-about .about-hero h1 {
  font-family: var(--font-headline);
  font-weight: 800;
  font-size: clamp(2rem, 6vw, 3.4rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 18px 0 20px;
  text-wrap: balance;
}

.page-about .about-hero-lead {
  font-size: 1.05rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.86);
  margin: 0 0 28px;
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page-about .about-hero-note {
  margin: 20px 0 0;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.6);
}

.page-about .about-hero-note a {
  color: var(--accent);
  text-decoration: underline;
  font-weight: 600;
}

.page-about .about-hero-figure {
  position: relative;
  max-width: 620px;
}

.page-about .about-hero-figure .img-frame {
  box-shadow: var(--shadow-md), 0 18px 60px var(--about-red-glow);
}

.page-about .about-hero-badge {
  position: absolute;
  right: 14px;
  bottom: -18px;
  background: var(--accent);
  color: #0E0E10;
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 8px 24px rgba(57, 255, 20, 0.28);
  min-width: 108px;
}

.page-about .about-hero-badge-num {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1.1;
}

.page-about .about-hero-badge-label {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  margin-top: 2px;
}

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

.page-about .about-story-grid {
  display: grid;
  gap: 48px;
}

.page-about .about-story-main > p {
  font-size: 1rem;
  line-height: 1.85;
  color: #333;
  margin: 0 0 20px;
}

.page-about .about-story-figure {
  margin: 36px 0 0;
}

.page-about .about-story-figure .img-frame {
  box-shadow: var(--shadow-sm);
}

.page-about .about-story-figure figcaption {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 12px;
  border-left: 2px solid var(--gold);
  padding-left: 12px;
  line-height: 1.6;
}

.page-about .about-story-aside {
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-about .about-stats-panel {
  background: var(--bg-dark);
  color: var(--text-primary);
  padding: 30px 26px;
  border-top: 4px solid var(--accent);
  box-shadow: var(--shadow-md);
  position: relative;
}

.page-about .about-stats-panel::after {
  content: "STATS / 数据";
  position: absolute;
  top: 16px;
  right: 16px;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  color: rgba(255, 255, 255, 0.32);
}

.page-about .about-stats-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--accent);
  text-transform: uppercase;
}

.page-about .about-stats-title {
  font-family: var(--font-headline);
  font-weight: 800;
  font-size: 1.25rem;
  margin: 12px 0 22px;
}

.page-about .about-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px 16px;
}

.page-about .about-stat-cell {
  padding: 18px 0 0;
  border-top: 1px solid var(--about-line);
}

.page-about .about-stat-label {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.62);
  letter-spacing: 0.04em;
  display: block;
}

.page-about .about-stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.7rem;
  font-weight: 500;
  line-height: 1.2;
  margin-top: 6px;
  color: var(--gold);
}

.page-about .about-value-card {
  display: flex;
  gap: 16px;
  background: #FFFFFF;
  padding: 22px 20px;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0, 0, 0, 0.05);
  border-left: 3px solid var(--primary);
}

.page-about .about-value-letter {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--primary);
  font-size: 1.2rem;
  line-height: 1;
}

.page-about .about-value-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 6px;
  font-family: var(--font-headline);
}

.page-about .about-value-card p {
  font-size: 0.85rem;
  line-height: 1.65;
  color: #555;
  margin: 0;
}

.page-about .about-milestones {
  background: var(--bg-dark);
  color: var(--text-primary);
  padding: 72px 0;
}

.page-about .about-timeline {
  position: relative;
  margin-top: 48px;
  padding-left: 26px;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: linear-gradient(to bottom, var(--gold) 0%, rgba(255, 255, 255, 0.12) 70%, transparent 100%);
}

.page-about .about-timeline-item {
  margin-bottom: 32px;
}

.page-about .about-timeline-details {
  position: relative;
  background: var(--surface-dark);
  border: 1px solid var(--border-light);
  border-left: 3px solid var(--gold);
}

.page-about .about-timeline-summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  cursor: pointer;
  padding: 20px 22px;
  transition: background 0.25s var(--ease);
}

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

.page-about .about-timeline-summary:hover {
  background: rgba(255, 215, 0, 0.04);
}

.page-about .about-timeline-dot {
  position: absolute;
  left: -27px;
  top: 50%;
  transform: translateY(-50%);
  width: 14px;
  height: 14px;
  background: var(--gold);
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(255, 215, 0, 0.14);
}

.page-about .about-timeline-version {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--gold);
  border: 1px solid rgba(255, 215, 0, 0.36);
  padding: 4px 8px;
  white-space: nowrap;
}

.page-about .about-timeline-title {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 1.12rem;
  margin: 0;
  flex: 1 1 auto;
  min-width: 120px;
}

.page-about .about-timeline-toggle {
  font-family: var(--font-mono);
  color: var(--gold);
  font-size: 1.15rem;
  display: inline-block;
  transition: transform 0.25s var(--ease);
  line-height: 1;
}

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

.page-about .about-timeline-body {
  padding: 0 22px 22px;
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.8;
  font-size: 0.92rem;
}

.page-about .about-tech {
  background: var(--surface-dark);
  color: var(--text-primary);
  padding: 72px 0;
}

.page-about .about-tech-grid {
  display: grid;
  gap: 44px;
  align-items: center;
}

.page-about .about-tech-copy p {
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.8;
  margin: 0 0 18px;
}

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

.page-about .about-tech-list li {
  position: relative;
  padding-left: 26px;
  color: rgba(255, 255, 255, 0.84);
  font-size: 0.92rem;
  line-height: 1.6;
}

.page-about .about-tech-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 8px;
  background: var(--accent);
  clip-path: polygon(0 0, 100% 50%, 0 100%);
}

.page-about .about-tech-figure .img-frame {
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.page-about .about-honors {
  background: var(--bg-light);
  padding: 72px 0;
}

.page-about .about-honor-grid {
  display: grid;
  gap: 24px;
  margin-top: 40px;
}

.page-about .about-honor-card {
  position: relative;
  padding: 32px 28px;
  background: #FFFFFF;
  border: 1px solid rgba(0, 0, 0, 0.07);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.page-about .about-honor-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 4px;
  background: var(--primary);
}

.page-about .about-honor-card:nth-child(2)::before {
  background: var(--gold);
}

.page-about .about-honor-card:nth-child(3)::before {
  background: var(--accent);
}

.page-about .about-honor-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.1);
}

.page-about .about-honor-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--bg-dark);
  color: var(--text-primary);
  font-size: 1.2rem;
  margin-bottom: 18px;
}

.page-about .about-honor-icon--red {
  background: var(--primary);
  color: #FFFFFF;
}

.page-about .about-honor-icon--gold {
  background: var(--gold);
  color: #0E0E10;
}

.page-about .about-honor-icon--accent {
  background: var(--accent);
  color: #0E0E10;
}

.page-about .about-honor-card h3 {
  font-size: 1.06rem;
  font-weight: 700;
  margin-bottom: 10px;
  font-family: var(--font-headline);
}

.page-about .about-honor-card p {
  font-size: 0.88rem;
  color: #555;
  line-height: 1.6;
  margin: 0;
}

.page-about .about-cta {
  background: linear-gradient(120deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: var(--text-primary);
  padding: 64px 0;
}

.page-about .about-cta-inner {
  display: flex;
  flex-direction: column;
  gap: 32px;
  align-items: flex-start;
}

.page-about .about-cta-copy h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  margin: 0 0 14px;
  font-family: var(--font-headline);
  letter-spacing: -0.02em;
}

.page-about .about-cta-copy p {
  color: rgba(255, 255, 255, 0.82);
  max-width: 640px;
  line-height: 1.7;
  margin: 0;
}

.page-about .about-cta-contact {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.72);
  border-top: 1px solid rgba(255, 255, 255, 0.22);
  padding-top: 16px;
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
}

.page-about .about-cta-note {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.68);
  margin: 10px 0 0;
}

.page-about .about-cta-note a {
  color: #FFFFFF;
  text-decoration: underline;
  font-weight: 600;
}

.page-about .about-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page-about .img-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
}

@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 84px 0 96px;
  }

  .page-about .about-hero-grid {
    grid-template-columns: 1fr 0.95fr;
    gap: 40px;
  }

  .page-about .about-story,
  .page-about .about-milestones,
  .page-about .about-tech,
  .page-about .about-honors {
    padding: 88px 0;
  }

  .page-about .about-story-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 48px;
  }

  .page-about .about-tech-grid {
    grid-template-columns: 1fr 0.9fr;
    gap: 52px;
  }

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

  .page-about .about-cta {
    padding: 76px 0;
  }

  .page-about .about-cta-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
  }

  .page-about .about-cta-actions {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero {
    padding: 108px 0 112px;
  }

  .page-about .about-hero-grid {
    gap: 64px;
  }

  .page-about .about-story,
  .page-about .about-milestones,
  .page-about .about-tech,
  .page-about .about-honors {
    padding: 112px 0;
  }

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

  .page-about .about-tech-grid {
    gap: 72px;
  }

  .page-about .about-cta {
    padding: 84px 0;
  }
}