.page-about {
  --about-gold-pale: rgba(212, 175, 55, 0.18);
  --about-cyan-glow: rgba(5, 217, 232, 0.25);
  --about-panel-pad: clamp(1.25rem, 3vw, 2.25rem);
}

.page-about .about-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1.5rem 0 0;
  font-size: 0.875rem;
  color: var(--c-muted);
}

.page-about .breadcrumbs-sep {
  color: var(--c-gold);
  opacity: 0.6;
}

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

.page-about .about-hero-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.25rem;
}

.page-about .about-hero-copy .display-1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.05;
  letter-spacing: 0.01em;
  margin-bottom: 0.25rem;
}

.page-about .about-hero-lead {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--c-muted);
  max-width: 56ch;
}

.page-about .about-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2.5rem;
  margin-top: 0.5rem;
}

.page-about .hero-stat {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.page-about .hero-stat-num {
  font-family: var(--font-head);
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1;
  background: var(--gold-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: 0.02em;
}

.page-about .hero-stat-label {
  font-size: 0.8125rem;
  color: var(--c-muted);
  letter-spacing: 0.05em;
}

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

.page-about .about-hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
  background:
    radial-gradient(circle at 30% 20%, var(--about-gold-pale), transparent 60%),
    radial-gradient(circle at 75% 75%, var(--about-cyan-glow), transparent 50%);
}

.page-about .about-hero-svg {
  width: 100%;
  max-width: 480px;
  height: auto;
}

.page-about .chapter + .chapter {
  margin-top: 5rem;
}

.page-about .about-chapter-top {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--c-line);
}

.page-about .about-chapter-top .chapter-index {
  font-size: 3rem;
  line-height: 1;
  font-weight: 200;
  color: transparent;
  -webkit-text-stroke: 1px var(--c-gold);
  opacity: 0.7;
  flex-shrink: 0;
}

.page-about .about-chapter-top .chapter-title {
  margin: 0;
}

.page-about .about-chapter-top .chapter-kicker {
  margin-bottom: 0.25rem;
}

.page-about .about-origin-layout {
  display: grid;
  gap: 2rem;
}

.page-about .about-origin-copy p {
  line-height: 1.9;
  margin-bottom: 1rem;
  color: var(--c-text);
  opacity: 0.92;
}

.page-about .about-origin-copy p:first-of-type::first-letter {
  font-family: var(--font-head);
  font-size: 3.2em;
  float: left;
  line-height: 0.8;
  padding-right: 0.1em;
  color: var(--c-gold);
  font-weight: 700;
}

.page-about .about-origin-aside {
  position: relative;
  padding: var(--about-panel-pad);
}

.page-about .about-origin-aside h3 {
  font-family: var(--font-head);
  font-size: 1.375rem;
  color: var(--c-gold);
  margin-bottom: 1rem;
}

.page-about .about-origin-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.page-about .about-origin-list li {
  padding-left: 1.25rem;
  position: relative;
  font-size: 0.9375rem;
  color: var(--c-text);
  opacity: 0.9;
}

.page-about .about-origin-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  background: var(--c-gold);
  transform: rotate(45deg);
}

.page-about .about-milestone-media {
  position: relative;
  margin-bottom: 2.5rem;
  overflow: hidden;
}

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

.page-about .media-tag {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(10, 14, 39, 0.75);
  border: 1px solid var(--c-gold);
  color: var(--c-champagne);
  font-family: var(--font-head);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  padding: 0.3rem 0.7rem;
  text-transform: uppercase;
  backdrop-filter: blur(4px);
}

.page-about .milestone-timeline {
  position: relative;
  padding-left: 1.5rem;
}

.page-about .milestone-timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--c-gold) 0%, var(--c-cyan) 100%);
  opacity: 0.5;
}

.page-about .milestone-item {
  position: relative;
  padding-bottom: 2rem;
}

.page-about .milestone-item:last-child {
  padding-bottom: 0;
}

.page-about .milestone-dot {
  position: absolute;
  left: -1.5rem;
  top: 0.625rem;
  width: 14px;
  height: 14px;
  background: var(--c-gold);
  border: 2px solid #0A0E27;
  box-shadow: 0 0 0 2px var(--c-gold);
  transform: rotate(45deg);
  transition: background 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
}

.page-about .milestone-dot:hover,
.page-about .milestone-dot:focus-visible {
  background: var(--c-cyan);
  box-shadow: 0 0 0 2px var(--c-cyan), 0 0 16px var(--about-cyan-glow);
  outline: none;
}

.page-about .milestone-card {
  background: linear-gradient(160deg, rgba(18, 21, 58, 0.95), rgba(18, 21, 58, 0.7));
  border: 1px solid var(--c-line);
  border-left: 2px solid var(--c-gold);
  padding: 1.25rem 1.5rem;
  transition: border-color 0.4s ease, transform 0.4s ease, box-shadow 0.4s ease;
}

.page-about .milestone-card h3 {
  font-family: var(--font-head);
  font-size: 1.25rem;
  color: var(--c-champagne);
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}

.page-about .milestone-card p {
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--c-muted);
  margin-bottom: 0;
}

.page-about .milestone-item:hover .milestone-dot {
  background: var(--c-cyan);
  box-shadow: 0 0 0 2px var(--c-cyan), 0 0 16px var(--about-cyan-glow);
}

.page-about .milestone-item:hover .milestone-card {
  border-color: rgba(5, 217, 232, 0.5);
  border-left-color: var(--c-cyan);
  transform: translateX(4px);
  box-shadow: var(--shadow-sheet);
}

.page-about .about-security-layout {
  display: grid;
  gap: 2rem;
}

.page-about .about-security-media {
  display: flex;
  min-height: 260px;
  overflow: hidden;
  border: 1px solid var(--c-line);
}

.page-about .about-security-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  flex: 1;
  transition: transform 0.6s ease;
}

.page-about .about-security-media:hover img {
  transform: scale(1.03);
}

.page-about .about-security-features {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.page-about .security-feature {
  position: relative;
  padding: 1.5rem 1.75rem;
  background: linear-gradient(135deg, rgba(27, 31, 79, 0.6), rgba(18, 21, 58, 0.85));
  border: 1px solid var(--c-line);
  border-right: 3px solid var(--c-gold);
  transition: border-color 0.3s ease, border-right-color 0.3s ease;
}

.page-about .security-feature h3 {
  font-family: var(--font-head);
  font-size: 1.25rem;
  color: var(--c-gold);
  margin-bottom: 0.375rem;
}

.page-about .security-feature p {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--c-text);
  opacity: 0.85;
  margin: 0;
}

.page-about .security-feature:hover {
  border-right-color: var(--c-cyan);
}

.page-about .about-service-layout {
  display: grid;
  gap: 2.5rem;
}

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

.page-about .service-stat {
  padding: 1.75rem 1.5rem;
  text-align: center;
  background: linear-gradient(150deg, rgba(212, 175, 55, 0.08), rgba(18, 21, 58, 0.6));
  border: 1px solid var(--c-line);
  border-top: 2px solid var(--c-gold);
  transition: background 0.3s ease, transform 0.3s ease;
}

.page-about .service-stat:hover {
  background: linear-gradient(150deg, rgba(212, 175, 55, 0.16), rgba(18, 21, 58, 0.8));
  transform: translateY(-3px);
}

.page-about .service-stat-num {
  display: block;
  font-family: var(--font-head);
  font-size: 2.625rem;
  font-weight: 700;
  color: var(--c-champagne);
  line-height: 1.1;
}

.page-about .service-stat-label {
  display: block;
  margin-top: 0.375rem;
  font-size: 0.8125rem;
  color: var(--c-muted);
  letter-spacing: 0.08em;
}

.page-about .about-service-copy p {
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--c-muted);
  margin-bottom: 1rem;
}

.page-about .about-service-copy .btn {
  margin-top: 0.75rem;
}

.page-about .about-cert-layout {
  display: grid;
  gap: 2.5rem;
}

.page-about .about-seal-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem;
  justify-content: center;
  align-items: center;
}

.page-about .about-seal {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  border: 2px solid var(--c-gold);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  text-align: center;
  font-family: var(--font-head);
  font-size: 0.8125rem;
  color: var(--c-champagne);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  line-height: 1.4;
  background: radial-gradient(circle at 50% 50%, rgba(212, 175, 55, 0.12), rgba(18, 21, 58, 0.2));
  box-shadow: 0 0 0 6px rgba(212, 175, 55, 0.08), 0 0 32px rgba(212, 175, 55, 0.12);
  transition: transform 0.7s cubic-bezier(0.22, 0.61, 0.36, 1), border-color 0.3s ease, box-shadow 0.3s ease;
}

.page-about .about-seal--alt {
  border-color: var(--c-cyan);
  color: rgba(5, 217, 232, 0.9);
  background: radial-gradient(circle at 50% 50%, rgba(5, 217, 232, 0.1), rgba(18, 21, 58, 0.2));
  box-shadow: 0 0 0 6px rgba(5, 217, 232, 0.06), 0 0 32px rgba(5, 217, 232, 0.1);
}

.page-about .about-seal:hover {
  transform: rotate(360deg);
  border-color: var(--c-champagne);
}

.page-about .about-cert-list {
  padding: 2rem 1.75rem;
  background: rgba(18, 21, 58, 0.5);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-cyan);
}

.page-about .about-cert-list h3 {
  font-family: var(--font-head);
  font-size: 1.375rem;
  color: var(--c-gold);
  margin-bottom: 1rem;
  letter-spacing: 0.04em;
}

.page-about .about-cert-list ul {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.page-about .about-cert-list li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--c-text);
  opacity: 0.9;
}

.page-about .about-cert-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 8px;
  height: 8px;
  transform: rotate(45deg);
  background: var(--c-cyan);
}

.page-about .about-cert-list > p {
  font-size: 0.875rem;
  color: var(--c-muted);
  margin: 0;
}

.page-about .about-mission-layout {
  display: grid;
  gap: 2.5rem;
}

.page-about .about-mission-grid {
  display: grid;
  gap: 1.5rem;
}

.page-about .about-mission-card {
  padding: var(--about-panel-pad);
  position: relative;
  transition: border-color 0.4s ease;
}

.page-about .about-mission-card h3 {
  font-family: var(--font-head);
  font-size: 1.375rem;
  color: var(--c-gold);
  margin-bottom: 0.625rem;
  letter-spacing: 0.03em;
}

.page-about .about-mission-card p {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--c-muted);
  margin-bottom: 1rem;
}

.page-about .about-mission-card .btn--link {
  font-size: 0.875rem;
}

.page-about .about-mission-card:hover {
  border-color: rgba(5, 217, 232, 0.45);
}

.page-about .about-mission-visual {
  overflow: hidden;
  border: 1px solid var(--c-line);
}

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

@media (prefers-reduced-motion: reduce) {
  .page-about .about-seal,
  .page-about .about-security-media img,
  .page-about .service-stat,
  .page-about .milestone-card {
    transition: none;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 3.5rem;
    align-items: center;
    padding: 4rem 0 5rem;
  }

  .page-about .about-hero-visual {
    min-height: 440px;
  }

  .page-about .about-origin-layout {
    grid-template-columns: 1.4fr 0.6fr;
    gap: 3rem;
    align-items: stretch;
  }

  .page-about .about-security-layout {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 3rem;
    align-items: stretch;
  }

  .page-about .about-service-layout {
    grid-template-columns: 0.8fr 1.2fr;
    gap: 4rem;
    align-items: center;
  }

  .page-about .about-service-stats {
    gap: 1.25rem;
  }

  .page-about .about-cert-layout {
    grid-template-columns: 0.8fr 1.2fr;
    gap: 4rem;
    align-items: center;
  }

  .page-about .about-mission-layout {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 3.5rem;
    align-items: center;
  }
}

@media (min-width: 1200px) {
  .page-about .about-mission-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}