.page-about {
  --about-num-size: clamp(60px, 12vw, 148px);
  --about-num-size-sm: clamp(36px, 9vw, 56px);
  --about-ease: cubic-bezier(0.22, 1, 0.36, 1);
  position: relative;
  background: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-body);
  overflow: hidden;
}

.page-about [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s var(--about-ease), transform 0.55s var(--about-ease);
}

.page-about [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

.page-about .site-breadcrumb {
  position: relative;
  z-index: 1;
  margin-bottom: var(--space-5);
}

.page-about .about-hero {
  position: relative;
  padding: calc(var(--header-height) + 48px) 0 72px;
  border-bottom: 1px solid var(--line-subtle);
  background:
    radial-gradient(ellipse at 78% 12%, rgba(255, 107, 53, 0.08) 0%, transparent 46%),
    radial-gradient(ellipse at 18% 88%, rgba(0, 229, 255, 0.05) 0%, transparent 42%);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "66";
  position: absolute;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(180px, 26vw, 320px);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.04);
  right: -30px;
  bottom: -36px;
  pointer-events: none;
  z-index: 0;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-5);
}

.page-about .about-hero__content h1 {
  font-family: var(--font-display);
  font-size: var(--fs-h1);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: var(--space-2) 0 var(--space-3);
}

.page-about .about-hero__lead {
  color: var(--text-secondary);
  font-size: var(--fs-body);
  line-height: 1.75;
  max-width: 46em;
  margin: 0 0 var(--space-4);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

.page-about .about-hero__contact {
  color: var(--text-secondary);
  font-size: 15px;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 53, 0.4);
  padding-bottom: 2px;
  transition: color 0.3s ease, border-color 0.3s ease;
}

.page-about .about-hero__contact:hover {
  color: var(--accent-primary);
  border-color: var(--accent-primary);
}

.page-about .about-hero__stat {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  border-top: 1px solid var(--line-subtle);
  padding: var(--space-4) 0 0;
  text-align: right;
}

.page-about .about-hero__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--about-num-size);
  line-height: 0.9;
  letter-spacing: -0.05em;
  color: var(--accent-primary);
}

.page-about .about-hero__unit {
  font-size: 0.32em;
  letter-spacing: 0;
  color: var(--accent-electric);
  vertical-align: super;
  margin-left: 0.08em;
}

.page-about .about-hero__caption {
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  letter-spacing: 0.18em;
  color: var(--text-secondary);
  margin-top: var(--space-2);
}

.page-about .about-story__layout {
  display: grid;
  gap: var(--space-5);
  align-items: center;
}

.page-about .about-story__content h2,
.page-about .about-evolution h2,
.page-about .about-milestones h2,
.page-about .about-certifications h2,
.page-about .about-scale h2 {
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  line-height: 1.2;
  margin: var(--space-2) 0 var(--space-3);
}

.page-about .about-story__content p {
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: var(--space-3);
}

.page-about .about-story__media {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 30px 60px -30px rgba(255, 107, 53, 0.4);
}

.page-about .about-story__media img,
.page-about .about-evolution__media img,
.page-about .about-certifications__bg img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-story__caption,
.page-about .about-evolution__caption,
.page-about .about-certifications__caption {
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--fs-caption);
  color: var(--text-secondary);
  text-align: right;
  padding-right: var(--space-2);
}

.page-about .about-evolution {
  border-top: 1px solid var(--line-subtle);
  border-bottom: 1px solid var(--line-subtle);
  background: linear-gradient(180deg, rgba(18, 26, 42, 0.6), transparent 50%);
}

.page-about .about-evolution__lead {
  color: var(--text-secondary);
  max-width: 40em;
  margin-bottom: var(--space-5);
}

.page-about .about-evolution__layout {
  display: grid;
  gap: var(--space-5);
  align-items: start;
}

.page-about .about-evolution__list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-about .about-evolution__item {
  position: relative;
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--line-subtle);
}

.page-about .about-evolution__item:last-child {
  border-bottom: none;
}

.page-about .about-evolution__step {
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  font-weight: 700;
  color: var(--accent-primary);
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255, 107, 53, 0.55);
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--bg-deep);
  transition: transform 0.3s var(--about-ease), box-shadow 0.3s ease;
}

.page-about .about-evolution__item:hover .about-evolution__step {
  transform: scale(1.08);
  box-shadow: 0 0 0 6px rgba(255, 107, 53, 0.12);
}

.page-about .about-evolution__body h3 {
  font-size: var(--fs-h3);
  margin: 0 0 var(--space-1);
}

.page-about .about-evolution__body p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

.page-about .about-evolution__media {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 24px 50px -30px rgba(0, 229, 255, 0.3);
}

.page-about .about-milestones__timeline {
  position: relative;
  margin-top: var(--space-5);
}

.page-about .about-milestones__timeline::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, rgba(255, 107, 53, 0.7), rgba(255, 255, 255, 0.06));
}

.page-about .about-milestones__item {
  position: relative;
  padding-left: var(--space-5);
  padding-bottom: var(--space-5);
}

.page-about .about-milestones__item::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 8px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent-primary);
  transform: translateX(-50%);
  box-shadow: 0 0 0 5px rgba(255, 107, 53, 0.15);
  transition: box-shadow 0.3s ease, background 0.3s ease;
}

.page-about .about-milestones__item.is-visible::before {
  background: var(--accent-electric);
  box-shadow: 0 0 0 9px rgba(0, 229, 255, 0.08);
}

.page-about .about-milestones__year {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(26px, 4vw, 36px);
  line-height: 1;
  color: var(--accent-electric);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-2);
}

.page-about .about-milestones__content {
  max-width: 36em;
}

.page-about .about-milestones__content h3 {
  font-size: var(--fs-h3);
  margin: 0 0 var(--space-1);
}

.page-about .about-milestones__content p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

.page-about .about-certifications__lead {
  color: var(--text-secondary);
  max-width: 36em;
  margin-bottom: var(--space-5);
}

.page-about .about-certifications__grid {
  display: grid;
  gap: var(--space-4);
}

.page-about .about-certification-card {
  position: relative;
  border: 1px solid var(--line-subtle);
  border-radius: var(--radius);
  background: rgba(18, 26, 42, 0.55);
  padding: var(--space-4);
  transition: border-color 0.3s ease, transform 0.3s var(--about-ease);
}

.page-about .about-certification-card:hover {
  border-color: rgba(0, 229, 255, 0.45);
  transform: translateY(-4px);
}

.page-about .about-certification-card__icon {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  color: var(--accent-primary);
  border-radius: var(--radius-sm);
  background: rgba(255, 107, 53, 0.08);
  margin-bottom: var(--space-3);
}

.page-about .about-certification-card h3 {
  font-size: var(--fs-h3);
  margin: 0 0 var(--space-1);
}

.page-about .about-certification-card p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.6;
  margin: 0;
}

.page-about .about-certifications__bg {
  margin: var(--space-5) 0 0;
  max-width: 460px;
  border-radius: var(--radius);
  overflow: hidden;
  opacity: 0.6;
}

.page-about .about-scale {
  position: relative;
  border-top: 1px solid var(--line-subtle);
  background:
    radial-gradient(circle at 18% 22%, rgba(255, 107, 53, 0.06), transparent 40%),
    radial-gradient(circle at 82% 68%, rgba(0, 229, 255, 0.05), transparent 44%);
  overflow: hidden;
}

.page-about .about-scale::before {
  content: "12,000";
  position: absolute;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(100px, 18vw, 200px);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.04);
  right: -20px;
  top: 40px;
  pointer-events: none;
  z-index: 0;
}

.page-about .about-scale .site-container {
  position: relative;
  z-index: 1;
}

.page-about .about-scale__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-subtle);
  border: 1px solid var(--line-subtle);
  border-radius: var(--radius);
  overflow: hidden;
  margin: var(--space-5) 0;
}

.page-about .about-scale__stat {
  background: var(--bg-deep);
  padding: var(--space-4) var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.page-about .about-scale__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--about-num-size-sm);
  line-height: 1;
  color: var(--accent-primary);
  letter-spacing: -0.03em;
}

.page-about .about-scale__unit {
  font-size: 0.38em;
  color: var(--accent-electric);
  vertical-align: super;
  margin-left: 0.06em;
}

.page-about .about-scale__label {
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  color: var(--text-secondary);
  letter-spacing: 0.06em;
}

.page-about .about-scale__note {
  max-width: 44em;
  color: var(--text-secondary);
  line-height: 1.75;
  display: grid;
  gap: var(--space-3);
}

.page-about .about-scale__note a {
  color: var(--accent-primary);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 53, 0.35);
  transition: border-color 0.3s ease;
}

.page-about .about-scale__note a:hover {
  border-color: var(--accent-primary);
}

@media (min-width: 768px) {
  .page-about .about-hero__inner {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    gap: var(--space-6);
  }

  .page-about .about-hero__stat {
    border-top: none;
    border-left: 1px solid var(--line-subtle);
    padding: 0 0 0 var(--space-5);
  }

  .page-about .about-story__layout {
    grid-template-columns: 1.05fr 0.95fr;
    gap: var(--space-6);
  }

  .page-about .about-evolution__layout {
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--space-6);
  }

  .page-about .about-certifications__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
  }
}

@media (min-width: 1080px) {
  .page-about .about-scale__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

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