.page-about {
  --about-gold-line: rgba(212, 175, 55, 0.35);
  --about-gold-soft: rgba(212, 175, 55, 0.12);
  --about-violet-bg: rgba(42, 27, 61, 0.3);
  --about-crimson-fade: rgba(142, 42, 31, 0.18);
  --about-blue: #00BFFF;
  --about-text: #F5F0E1;
  background: var(--color-bg, #0A0A0A);
  color: var(--about-text);
  overflow-x: hidden;
}

.page-about .container--wide {
  max-width: 1320px;
}

.page-about .page-about__crumb-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding-top: 1.75rem;
  font-size: 0.875rem;
  color: var(--color-muted, #9AA0A6);
}

.page-about .breadcrumb__link {
  color: var(--color-muted, #9AA0A6);
  text-decoration: none;
  transition: color 0.15s ease;
}

.page-about .breadcrumb__link:hover,
.page-about .breadcrumb__link:focus-visible {
  color: var(--about-blue);
  outline: none;
}

.page-about .breadcrumb__current {
  color: var(--color-gold, #D4AF37);
}

.page-about .hero-story {
  position: relative;
  min-height: 62vh;
  display: flex;
  align-items: center;
  padding: 4.5rem 0 5rem;
  border-bottom: 1px solid var(--about-gold-line);
  background:
    linear-gradient(120deg, rgba(42, 27, 61, 0.5) 0%, transparent 46%),
    linear-gradient(15deg, rgba(142, 42, 31, 0.22) 0%, transparent 62%),
    radial-gradient(ellipse at 78% 18%, rgba(212, 175, 55, 0.2), transparent 58%),
    var(--color-bg-deep, #050505);
}

.page-about .hero-story__inner {
  max-width: 900px;
}

.page-about .hero-story__kicker {
  margin: 0;
  font-family: var(--font-display, "Montserrat", sans-serif);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-gold, #D4AF37);
}

.page-about .hero-story__title {
  margin: 1.25rem 0 0;
  font-family: var(--font-display, "Montserrat", sans-serif);
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--about-text);
}

.page-about .hero-story__lead {
  max-width: 720px;
  margin: 1.5rem 0 0;
  font-family: var(--font-body, "Noto Sans SC", sans-serif);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--color-muted, #9AA0A6);
}

.page-about .hero-story__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  margin-top: 2rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--about-text);
}

.page-about .hero-story__rule,
.page-about .hero-story__trust {
  margin-left: 0.25rem;
  padding-left: 0.9rem;
  border-left: 1px solid var(--about-gold-line);
}

.page-about .hero-story__ornament {
  display: block;
  width: 100%;
  max-width: 520px;
  height: auto;
  margin-top: 2.4rem;
}

.page-about .philosophy {
  padding-top: 0;
  background: var(--color-bg, #0A0A0A);
}

.page-about .philosophy__banner {
  display: block;
  overflow: hidden;
  max-height: 38vh;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--about-gold-line);
  background: linear-gradient(90deg, rgba(42, 27, 61, 0.55), rgba(10, 10, 10, 0.2));
}

.page-about .philosophy__img {
  display: block;
  width: 100%;
  height: 260px;
  object-fit: cover;
  object-position: center 22%;
}

.page-about .philosophy .section__header {
  margin-bottom: 2.5rem;
}

.page-about .philosophy__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-about .philosophy__card {
  position: relative;
  padding: 2rem 1.6rem 1.75rem;
  border: 1px solid var(--about-gold-line);
  background: linear-gradient(150deg, rgba(42, 27, 61, 0.65), rgba(46, 46, 46, 0.36) 82%);
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.page-about .philosophy__card:hover {
  border-color: rgba(212, 175, 55, 0.7);
  transform: translateY(-4px);
}

.page-about .philosophy__num {
  display: inline-block;
  margin-bottom: 1rem;
  font-family: var(--font-display, "Montserrat", sans-serif);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.24em;
  color: var(--color-gold, #D4AF37);
}

.page-about .philosophy__card h3 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display, "Montserrat", sans-serif);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--about-text);
}

.page-about .philosophy__card p {
  margin: 0;
  font-size: 0.925rem;
  line-height: 1.85;
  color: var(--color-muted, #9AA0A6);
}

.page-about .milestones {
  background:
    linear-gradient(180deg, rgba(10, 10, 10, 0) 0%, rgba(42, 27, 61, 0.22) 50%, rgba(10, 10, 10, 0) 100%);
}

.page-about .milestones__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.page-about .milestones__insignia {
  display: none;
}

.page-about .milestones__insignia-text {
  margin: 1.25rem 0 0;
  max-width: 200px;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--color-muted, #9AA0A6);
}

.page-about .milestones__img {
  width: 200px;
  height: auto;
  border: 1px solid var(--about-gold-line);
}

.page-about .milestones__timeline {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .milestones__item {
  position: relative;
  display: block;
  padding: 1.5rem 0 1.5rem 1.6rem;
  border-left: 2px solid var(--about-gold-line);
  margin: 0;
}

.page-about .milestones__item::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 2.1rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-gold, #D4AF37);
  box-shadow: 0 0 0 4px rgba(10, 10, 10, 0.95), 0 0 0 5px rgba(212, 175, 55, 0.35);
}

.page-about .milestones__item:last-child {
  border-left-color: transparent;
}

.page-about .milestones__item:last-child::after {
  content: "";
  position: absolute;
  left: -2px;
  top: 65%;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, rgba(212, 175, 55, 0.35), transparent);
}

.page-about .milestones__date {
  margin-bottom: 0.5rem;
  font-family: var(--font-display, "Montserrat", sans-serif);
  font-size: 0.85rem;
  line-height: 1.5;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gold, #D4AF37);
}

.page-about .milestones__date strong {
  font-size: 1.45rem;
  letter-spacing: 0.04em;
  color: var(--about-text);
}

.page-about .milestones__content h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display, "Montserrat", sans-serif);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--about-text);
}

.page-about .milestones__content p {
  margin: 0;
  font-size: 0.925rem;
  line-height: 1.85;
  color: var(--color-muted, #9AA0A6);
}

.page-about .version-evo {
  border-top: 1px solid var(--about-gold-line);
  border-bottom: 1px solid var(--about-gold-line);
  background:
    linear-gradient(145deg, rgba(42, 27, 61, 0.5), transparent 56%),
    radial-gradient(circle at 88% 15%, rgba(212, 175, 55, 0.16), transparent 48%),
    var(--color-bg-deep, #050505);
}

.page-about .version-evo__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: stretch;
}

.page-about .version-evo__chart {
  border: 1px solid var(--about-gold-line);
  background: rgba(5, 5, 5, 0.72);
  padding: 1rem;
}

.page-about .version-evo__svg {
  display: block;
  width: 100%;
  height: auto;
  min-height: 280px;
}

.page-about .version-evo__tag {
  font-family: var(--font-display, "Montserrat", sans-serif);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  fill: var(--color-muted, #9AA0A6);
  transition: fill 0.18s ease;
}

.page-about .version-evo__tag--current {
  fill: var(--color-gold, #D4AF37);
  font-size: 14px;
  font-weight: 800;
}

.page-about .version-evo__node circle {
  fill: var(--color-violet, #2A1B3D);
  transition: fill 0.18s ease, stroke-width 0.18s ease;
}

.page-about .version-evo__node:hover circle,
.page-about .version-evo__node:focus-visible circle {
  fill: var(--about-blue);
  stroke-width: 3;
  outline: none;
}

.page-about .version-evo__node:hover .version-evo__tag,
.page-about .version-evo__node:focus-visible .version-evo__tag {
  fill: var(--about-blue);
}

.page-about .version-evo__node--current circle {
  fill: var(--color-gold, #D4AF37);
}

.page-about .version-evo__node--current:hover circle,
.page-about .version-evo__node--current:focus-visible circle {
  fill: var(--about-blue);
}

.page-about .version-evo__halo {
  animation: haloPulse 2.4s ease-in-out infinite;
}

@keyframes haloPulse {
  0%, 100% { opacity: 0.35; }
  50% { opacity: 0.9; }
}

.page-about .version-evo__legend {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  padding: 0.9rem 0 0.2rem;
}

.page-about .version-evo__legend .legend__item {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.8rem;
  color: var(--color-muted, #9AA0A6);
}

.page-about .version-evo__side {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.page-about .version-evo__frame {
  border: 1px solid var(--about-gold-line);
  overflow: hidden;
  background: var(--color-violet, #2A1B3D);
}

.page-about .version-evo__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .version-evo__side-text {
  margin: 0;
  font-size: 0.925rem;
  line-height: 1.85;
  color: var(--color-muted, #9AA0A6);
}

.page-about .operations {
  background: var(--color-bg, #0A0A0A);
}

.page-about .operations__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-about .operations__item {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1.6rem 1.4rem;
  border: 1px solid rgba(212, 175, 55, 0.16);
  background: rgba(46, 46, 46, 0.32);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.page-about .operations__item:hover {
  border-color: var(--about-gold-line);
  background: rgba(42, 27, 61, 0.3);
}

.page-about .operations__mark {
  font-family: var(--font-display, "Montserrat", sans-serif);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--color-gold-dark, #B8860B);
}

.page-about .operations__item h3 {
  margin: 0;
  font-family: var(--font-display, "Montserrat", sans-serif);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--about-text);
}

.page-about .operations__item p {
  margin: 0;
  font-size: 0.925rem;
  line-height: 1.85;
  color: var(--color-muted, #9AA0A6);
}

.page-about .operations__cta {
  margin-top: 2.75rem;
  padding-top: 2rem;
  border-top: 1px solid var(--about-gold-line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.9rem;
}

.page-about .operations__cta-text {
  flex-basis: 100%;
  margin: 0 0 0.2rem;
  font-size: 0.95rem;
  color: var(--about-text);
}

.page-about .operations__cta-btn {
  text-decoration: none;
  border-radius: 0;
}

@media (min-width: 768px) {
  .page-about .philosophy__img {
    height: 340px;
  }

  .page-about .philosophy__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }

  .page-about .milestones__item {
    padding: 1.8rem 0 1.8rem 2.6rem;
  }

  .page-about .milestones__item::before {
    left: -8px;
    top: 2.3rem;
  }

  .page-about .milestones__date {
    margin-bottom: 0.75rem;
  }

  .page-about .version-evo__chart {
    padding: 1.5rem;
  }

  .page-about .version-evo__side {
    gap: 1.5rem;
  }

  .page-about .operations__grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
  }

  .page-about .operations__cta-text {
    flex-basis: auto;
    margin: 0;
    margin-right: 0.5rem;
  }
}

@media (min-width: 992px) {
  .page-about .milestones__layout {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 3rem;
  }

  .page-about .milestones__insignia {
    display: block;
    position: sticky;
    top: 2.5rem;
    align-self: start;
  }

  .page-about .version-evo__layout {
    grid-template-columns: minmax(0, 2fr) minmax(260px, 1fr);
    gap: 1.75rem;
  }

  .page-about .version-evo__side {
    padding-top: 0.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .hero-story,
  .page-about .philosophy__banner,
  .page-about .milestones__item,
  .page-about .version-evo__chart,
  .page-about .version-evo__side,
  .page-about .operations__item,
  .page-about .operations__cta {
    transition: opacity 0.2s ease-out;
  }

  .page-about .version-evo__halo {
    animation: none;
  }

  .page-about .version-evo__node circle {
    transition: fill 0.2s ease-out;
  }

  .page-about .philosophy__card,
  .page-about .operations__item,
  .page-about .milestones__item {
    transition: opacity 0.2s ease-out, transform 0.2s ease-out;
  }
}