.page-about {
  --about-accent: var(--color-gold);
  --about-accent-soft: rgb(212 175 55 / 0.18);
  --about-line: rgb(212 175 55 / 0.28);
  position: relative;
  width: 100%;
  background:
    radial-gradient(ellipse at 88% 4%, rgb(212 175 55 / 0.10) 0%, transparent 46%),
    linear-gradient(160deg, var(--color-bg-deep) 0%, var(--color-bg) 48%);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.7;
  overflow-x: hidden;
}

.page-about .profile-hero {
  position: relative;
  overflow: hidden;
  padding: 28px 20px 52px;
  border-bottom: 1px solid var(--about-line);
}

.page-about .profile-hero__stripes {
  position: absolute;
  inset: auto 0 0 0;
  height: 180px;
  z-index: 0;
  pointer-events: none;
  opacity: 0.5;
}

.page-about .profile-hero__stripes svg {
  display: block;
  width: 100%;
  height: 100%;
}

.page-about .profile-hero__inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
}

.page-about .breadcrumb {
  margin-bottom: 30px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--color-muted);
}

.page-about .breadcrumb a {
  color: var(--color-muted);
  text-decoration: none;
  transition: color var(--transition);
}

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

.page-about .breadcrumb .breadcrumb__sep {
  margin: 0 10px;
  color: var(--color-gold);
}

.page-about .breadcrumb [aria-current="page"] {
  color: var(--color-gold);
}

.page-about .profile-hero__grid {
  display: grid;
  gap: 40px;
  align-items: end;
}

.page-about .profile-hero__overline {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.24em;
  color: var(--color-gold);
}

.page-about .profile-hero h1 {
  margin: 0 0 20px;
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5.4vw, 3.9rem);
  line-height: 1.22;
  font-weight: 900;
  letter-spacing: 0.01em;
  max-width: 18em;
}

.page-about .profile-hero__lead {
  margin: 0 0 28px;
  max-width: 46em;
  color: var(--color-muted);
  font-size: 1.06rem;
}

.page-about .profile-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page-about .btn {
  border-radius: 0;
  letter-spacing: 0.02em;
}

.page-about .profile-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border: 1px solid var(--about-line);
  background: rgb(27 36 64 / 0.55);
  backdrop-filter: blur(8px);
}

.page-about .hero-stat {
  position: relative;
  padding: 22px 20px;
  border: 1px solid rgb(212 175 55 / 0.12);
}

.page-about .hero-stat::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-gold) 55%, transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.page-about .hero-stat:hover::before {
  opacity: 1;
}

.page-about .hero-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.7rem, 3.2vw, 2.6rem);
  font-weight: 600;
  line-height: 1.1;
  color: var(--color-gold);
  letter-spacing: -0.02em;
}

.page-about .hero-stat__num span {
  margin-left: 2px;
  font-size: 0.52em;
  color: var(--color-light-gold);
}

.page-about .hero-stat__label {
  display: block;
  margin-top: 8px;
  color: var(--color-muted);
  font-size: 13px;
  letter-spacing: 0.06em;
}

.page-about .milestones,
.page-about .capability,
.page-about .security,
.page-about .team,
.page-about .honor,
.page-about .trustline {
  padding: 56px 20px 72px;
}

.page-about .milestones__inner,
.page-about .capability__inner,
.page-about .security__inner,
.page-about .team__inner,
.page-about .honor__inner,
.page-about .trustline__inner {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
}

.page-about .milestones__header,
.page-about .capability__header,
.page-about .security__header,
.page-about .team__header {
  position: relative;
  margin-bottom: 40px;
  padding-left: 18px;
  border-left: 3px solid var(--color-gold);
}

.page-about .section-overline {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--color-gold);
}

.page-about .milestones h2,
.page-about .capability h2,
.page-about .security h2,
.page-about .team h2,
.page-about .honor h2 {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 3.4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--color-text);
}

.page-about .milestones__header p:last-child,
.page-about .capability__header p:last-child,
.page-about .security__header p:last-child,
.page-about .team__header p:last-child {
  margin: 0;
  max-width: 56em;
  color: var(--color-muted);
  font-size: 15px;
}

.page-about .milestones__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
}

.page-about .milestones__visual {
  border: 1px solid var(--about-line);
  background: var(--color-panel);
  padding: 12px;
}

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

.page-about .timeline {
  display: grid;
  gap: 18px;
}

.page-about .timeline__item {
  position: relative;
  padding-left: 68px;
  border-bottom: 1px solid rgb(44 62 112 / 0.6);
}

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

.page-about .timeline__item::before {
  content: "";
  position: absolute;
  left: 23px;
  top: 30px;
  bottom: -8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-gold), rgb(212 175 55 / 0.15));
}

.page-about .timeline__item:last-child::before {
  display: none;
}

.page-about .timeline__node {
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 4px 14px;
  padding: 20px 0 16px;
  cursor: pointer;
  user-select: none;
  color: var(--color-text);
}

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

.page-about .timeline__node:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 4px;
}

.page-about .timeline__year {
  grid-column: 1;
  grid-row: 1;
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--color-gold);
}

.page-about .timeline__dot {
  position: absolute;
  left: 10px;
  top: 32px;
  width: 28px;
  height: 28px;
  border: 3px solid var(--color-gold);
  border-radius: 50%;
  background: var(--color-bg);
  box-shadow: 0 0 0 6px rgb(10 17 40 / 0.9);
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.page-about .timeline__dot::after {
  content: "";
  position: absolute;
  inset: 6px;
  border-radius: 50%;
  background: var(--color-gold);
  opacity: 0.9;
  transition: background var(--transition);
}

.page-about .timeline__item[open] .timeline__dot {
  border-color: var(--color-neon);
  box-shadow: 0 0 0 6px rgb(10 17 40 / 0.9), 0 0 18px rgb(57 255 20 / 0.55);
}

.page-about .timeline__item[open] .timeline__dot::after {
  background: var(--color-neon);
}

.page-about .timeline__title {
  grid-column: 1;
  grid-row: 2;
  padding-right: 12px;
  font-family: var(--font-sans);
  font-size: 1.08rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--color-text);
}

.page-about .timeline__ctrl {
  grid-column: 2;
  grid-row: 1 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border: 1px solid var(--color-grid);
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--color-gold);
  transition: transform var(--transition), border-color var(--transition), background var(--transition);
}

.page-about .timeline__item[open] .timeline__ctrl {
  transform: rotate(45deg);
  border-color: var(--color-gold);
  background: var(--color-gold);
  color: var(--color-bg);
}

.page-about .timeline__body {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  padding: 0;
  transition: grid-template-rows 0.3s ease, opacity 0.3s ease, padding 0.3s ease;
}

.page-about .timeline__body p {
  overflow: hidden;
  min-height: 0;
  margin: 0;
  max-width: 58em;
  color: var(--color-muted);
  font-size: 15px;
}

.page-about .timeline__item[open] .timeline__body {
  grid-template-rows: 1fr;
  opacity: 1;
  padding: 0 0 22px;
}

.page-about .capability {
  border-top: 1px solid var(--about-line);
}

.page-about .capability__banner {
  display: block;
  width: 100%;
  height: auto;
  max-height: 300px;
  object-fit: cover;
  margin-bottom: 34px;
  border: 1px solid var(--about-line);
  background: var(--color-panel);
}

.page-about .capability__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-about .capability-card {
  position: relative;
  min-height: 188px;
  padding: 24px 20px;
  border: 1px solid rgb(212 175 55 / 0.22);
  background: linear-gradient(135deg, rgb(27 36 64 / 0.92), rgb(13 21 48 / 0.88));
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.page-about .capability-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-gold);
  box-shadow: 0 12px 36px rgb(0 0 0 / 0.35);
}

.page-about .capability-card::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 44px;
  height: 3px;
  background: var(--color-crimson);
}

.page-about .capability-card__num {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 2.4rem;
  font-weight: 600;
  line-height: 1.1;
  color: var(--color-gold);
}

.page-about .capability-card__num span {
  margin-left: 4px;
  font-size: 0.46em;
  letter-spacing: 0.04em;
  color: var(--color-light-gold);
}

.page-about .capability-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text);
}

.page-about .capability-card p {
  margin: 0;
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.65;
}

.page-about .capability__note {
  margin-top: 26px;
  padding: 16px 18px;
  border-left: 3px solid var(--color-neon);
  background: rgb(57 255 20 / 0.05);
  color: var(--color-text);
  font-size: 15px;
}

.page-about .security {
  padding-top: 72px;
  border-top: 1px solid var(--about-line);
}

.page-about .security__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

.page-about .security__visual {
  border: 1px solid rgb(212 175 55 / 0.22);
  background: var(--color-panel);
  padding: 14px;
}

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

.page-about .security__list {
  display: grid;
  gap: 14px;
}

.page-about .security-card {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 18px;
  border: 1px solid var(--color-grid);
  background: rgb(27 36 64 / 0.5);
  transition: border-color var(--transition), background var(--transition);
}

.page-about .security-card:hover {
  border-color: var(--color-gold);
  background: rgb(27 36 64 / 0.85);
}

.page-about .security-card__icon {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border: 1px solid var(--color-gold);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-gold);
}

.page-about .security-card__icon::before {
  content: "";
  position: absolute;
  right: -6px;
  bottom: -6px;
  width: 10px;
  height: 10px;
  background: var(--color-crimson);
}

.page-about .security-card h3 {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text);
}

.page-about .security-card p {
  margin: 0;
  color: var(--color-muted);
  font-size: 14px;
}

.page-about .team {
  padding-top: 72px;
}

.page-about .team__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-about .team-card {
  position: relative;
  overflow: hidden;
  padding: 28px 24px;
  border: 1px solid var(--color-grid);
  background: linear-gradient(180deg, rgb(27 36 64 / 0.78), rgb(13 21 48 / 0.7));
  transition: border-color var(--transition);
}

.page-about .team-card::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-gold), var(--color-crimson), transparent);
  transform: scaleX(0.3);
  transform-origin: left;
  transition: transform 0.35s ease;
}

.page-about .team-card:hover {
  border-color: var(--color-gold);
}

.page-about .team-card:hover::before {
  transform: scaleX(1);
}

.page-about .team-card__num {
  display: block;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 2.6rem;
  font-weight: 600;
  line-height: 1;
  color: var(--color-gold);
}

.page-about .team-card__num span {
  margin-left: 4px;
  font-size: 0.45em;
  color: var(--color-light-gold);
}

.page-about .team-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
}

.page-about .team-card p {
  margin: 0;
  color: var(--color-muted);
  font-size: 14px;
}

.page-about .honor {
  padding-top: 24px;
  padding-bottom: 56px;
}

.page-about .honor__badge {
  position: relative;
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  padding: 30px 26px;
  border: 1px solid var(--color-gold);
  background: linear-gradient(120deg, rgb(212 175 55 / 0.16), rgb(27 36 64 / 0.72) 42%, rgb(13 21 48 / 0.68));
}

.page-about .honor__badge::before {
  content: "";
  position: absolute;
  inset: 6px;
  border: 1px solid rgb(212 175 55 / 0.3);
  pointer-events: none;
}

.page-about .honor__mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: var(--color-gold);
  color: var(--color-bg);
  font-family: var(--font-serif);
  font-size: 2rem;
}

.page-about .honor h2 {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 2.4vw, 1.8rem);
  font-weight: 800;
  color: var(--color-text);
}

.page-about .honor p {
  margin: 0;
  max-width: 52em;
  color: var(--color-muted);
  font-size: 15px;
}

.page-about .trustline {
  padding-top: 24px;
  padding-bottom: 40px;
}

.page-about .trustline > .trustline__inner > p {
  margin: 0 0 24px;
  max-width: 60em;
  padding: 18px 20px;
  border: 1px solid var(--color-grid);
  border-left: 3px solid var(--color-neon);
  background: rgb(27 36 64 / 0.42);
  color: var(--color-text);
  font-size: 15px;
}

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

@keyframes dfcPageAboutReveal {
  from {
    opacity: 0;
    transform: translateY(26px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@supports (animation-timeline: view()) {
  .page-about .milestones__visual,
  .page-about .capability__banner,
  .page-about .capability-card,
  .page-about .security-card,
  .page-about .team-card,
  .page-about .honor__badge {
    animation: dfcPageAboutReveal linear both;
    animation-timeline: view();
    animation-range: entry 5% entry 45%;
  }
}

@media (min-width: 560px) {
  .page-about .capability__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (min-width: 600px) {
  .page-about .profile-hero__stripes {
    opacity: 0.75;
  }
}

@media (min-width: 720px) {
  .page-about .team__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }
}

@media (min-width: 768px) {
  .page-about .timeline__item {
    padding-left: 92px;
  }

  .page-about .timeline__item::before {
    left: 32px;
  }

  .page-about .timeline__dot {
    left: 18px;
    top: 36px;
  }

  .page-about .timeline__year {
    font-size: 2.8rem;
  }

  .page-about .timeline__title {
    font-size: 1.25rem;
  }

  .page-about .timeline__body p {
    font-size: 1rem;
  }
}

@media (min-width: 820px) {
  .page-about .capability__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (min-width: 900px) {
  .page-about .security__layout {
    grid-template-columns: minmax(300px, 420px) minmax(0, 1fr);
    gap: 48px;
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-about .profile-hero__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: stretch;
  }
}

@media (min-width: 1060px) {
  .page-about .milestones__layout {
    grid-template-columns: 320px minmax(0, 1fr);
    gap: 48px;
  }

  .page-about .milestones__visual {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    align-self: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}