.page-about {
  --about-coord-line: rgba(184, 255, 34, 0.14);
  --about-orange-soft: rgba(255, 92, 0, 0.12);
  --about-card-line: rgba(122, 156, 198, 0.24);
  --about-sand-start: #1E1919;
  --about-sand-end: #251D16;
  background: var(--space-deep);
  color: var(--text-primary);
  overflow-x: clip;
}

.page-about .container,
.page-about .container--wide {
  max-width: var(--container);
}

.page-about .container--wide {
  max-width: var(--container-wide);
}

.page-about .section {
  padding-top: 48px;
  padding-bottom: 48px;
}

.page-about .section__eyebrow {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--neon-green);
  margin: 0 0 8px;
}

.page-about .section__title {
  font-family: var(--font-head);
  font-size: clamp(1.75rem, 2.6vw, 2.6rem);
  font-weight: 900;
  font-style: oblique 8deg;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: 0 0 12px;
  color: var(--desert-cream);
}

.page-about .section__subtitle {
  max-width: 680px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.8;
  margin: 0 0 32px;
}

.page-about .breadcrumbs {
  margin-bottom: 24px;
}

.page-about .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 14px;
  color: var(--text-secondary);
}

.page-about .breadcrumbs__item a {
  color: var(--steel-blue);
  text-decoration: none;
  transition: color var(--ease);
}

.page-about .breadcrumbs__item a:hover {
  color: var(--neon-green);
}

.page-about .breadcrumbs__item[aria-current="page"] {
  color: var(--desert-cream);
}

.about-hero__inner {
  position: relative;
  padding-top: 32px;
  padding-bottom: 56px;
}

.about-hero__inner::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(122, 156, 198, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(122, 156, 198, 0.08) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(120deg, rgba(0, 0, 0, 0.9), transparent 72%);
  -webkit-mask-image: linear-gradient(120deg, rgba(0, 0, 0, 0.9), transparent 72%);
}

.about-hero__inner::after {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 34%;
  pointer-events: none;
  background: linear-gradient(155deg, transparent 32%, rgba(184, 255, 34, 0.07) 50%, transparent 78%);
}

.about-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.about-hero__eyebrow {
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--neon-green);
  margin: 0 0 14px;
}

.about-hero__title {
  font-family: var(--font-head);
  font-size: clamp(1.9rem, 3.4vw, 3.1rem);
  font-weight: 900;
  font-style: oblique 10deg;
  letter-spacing: -0.03em;
  line-height: 1.16;
  max-width: 900px;
  margin: 0 0 20px;
  color: var(--desert-cream);
}

.about-hero__lead {
  max-width: 780px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--steel-blue);
  margin: 0 0 28px;
}

.about-hero__metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  max-width: 560px;
}

.about-hero__metric {
  border-left: 2px solid var(--neon-green);
  background: rgba(18, 38, 78, 0.72);
  padding: 12px 16px;
}

.about-hero__metric-num {
  display: block;
  font-family: var(--font-data);
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--desert-cream);
}

.about-hero__metric-label {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.about-hero__panel {
  position: relative;
  background: var(--night-blue);
  border: 1px solid var(--about-card-line);
  padding: 24px 22px;
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
  max-width: 420px;
}

.about-hero__panel::before {
  content: "";
  position: absolute;
  top: 0;
  right: 18px;
  width: 42px;
  height: 3px;
  background: var(--signal-orange);
}

.about-hero__panel-title {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 18px;
  margin: 0 0 8px;
  color: var(--desert-cream);
}

.about-hero__panel-text {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
  margin: 0 0 20px;
}

.about-hero__panel-note {
  font-size: 13px;
  color: var(--neon-green);
  margin: 14px 0 0;
  line-height: 1.6;
}

.about-hero__panel .btn {
  width: 100%;
  justify-content: center;
}

.about-mission__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

.about-mission__content {
  max-width: 760px;
}

.about-mission__copy {
  font-size: 15px;
  line-height: 1.9;
  color: var(--steel-blue);
  margin: 0 0 16px;
}

.about-mission__list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.about-mission__list li {
  position: relative;
  padding: 10px 12px 10px 20px;
  background: rgba(18, 38, 78, 0.6);
  border-left: 2px solid var(--signal-orange);
  font-size: 14px;
  line-height: 1.7;
  color: var(--desert-cream);
}

.about-mission__list strong {
  color: var(--neon-green);
  font-weight: 700;
}

.about-mission__figure {
  margin: 0;
}

.about-mission__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--about-card-line);
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 26px 100%, 0 calc(100% - 26px));
}

.about-mission__caption {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-top: 10px;
  padding-left: 12px;
  border-left: 2px solid var(--neon-green);
}

.about-journey__figure {
  margin: 0 0 40px;
}

.about-journey__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--about-card-line);
}

.about-journey__figure-caption {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-top: 10px;
  padding-left: 12px;
  border-left: 2px solid var(--signal-orange);
}

.timeline {
  position: relative;
  display: grid;
  gap: 18px;
}

.timeline__item {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 16px;
  position: relative;
}

.timeline__item::before {
  content: "";
  position: absolute;
  left: 27px;
  top: 8px;
  bottom: -24px;
  width: 2px;
  background: var(--line-faint);
}

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

.timeline__year {
  position: relative;
  z-index: 1;
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 15px;
  color: var(--neon-green);
  background: var(--space-deep);
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--line-faint);
  border-radius: 50%;
  box-shadow: 0 0 0 5px var(--space-deep);
}

.timeline__card {
  background: rgba(18, 38, 78, 0.66);
  border: 1px solid var(--about-card-line);
  padding: 18px 16px;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
}

.timeline__card-title {
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 900;
  color: var(--desert-cream);
  margin: 0 0 8px;
}

.timeline__summary {
  font-size: 14px;
  line-height: 1.75;
  color: var(--steel-blue);
  margin: 0 0 12px;
}

.timeline__details {
  border-top: 1px dashed var(--line-faint);
  padding-top: 10px;
}

.timeline__toggle {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--neon-green);
  background: none;
  border: none;
  padding: 0;
  transition: color var(--ease);
}

.timeline__toggle::-webkit-details-marker {
  display: none;
}

.timeline__toggle::before {
  content: "+";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  font-family: var(--font-data);
  font-size: 14px;
  border: 1px solid var(--neon-green);
  border-radius: 50%;
  transition: transform var(--ease);
}

.timeline__details[open] .timeline__toggle::before {
  transform: rotate(45deg);
}

.timeline__detail {
  font-size: 14px;
  line-height: 1.8;
  color: var(--steel-blue);
  padding-top: 10px;
}

.timeline__detail p {
  margin: 0;
}

.about-data__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-bottom: 28px;
}

.about-data__map {
  position: relative;
  overflow: hidden;
}

.about-data__map-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line-faint);
}

.about-data__map-ref {
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--text-secondary);
}

.about-data__map-visual {
  position: relative;
  aspect-ratio: 4 / 3;
  min-height: 300px;
}

.about-data__map-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.about-data__map-line {
  fill: none;
  stroke: rgba(184, 255, 34, 0.5);
  stroke-width: 2;
  stroke-dasharray: 6 6;
  transition: stroke var(--ease), stroke-dasharray var(--ease);
}

.about-data__map-visual:hover .about-data__map-line {
  stroke: var(--neon-green);
  stroke-dasharray: 12 4;
}

.map-node {
  position: absolute;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  z-index: 2;
}

.map-node__dot {
  display: block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--neon-green);
  border: 2px solid var(--space-deep);
  box-shadow: 0 0 0 2px rgba(184, 255, 34, 0.4);
  transition: transform var(--ease);
}

.map-node__dot--center {
  width: 18px;
  height: 18px;
  background: var(--signal-orange);
  box-shadow: 0 0 18px rgba(255, 92, 0, 0.6);
}

.map-node__label {
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--desert-cream);
  background: rgba(5, 13, 31, 0.82);
  padding: 2px 8px;
  border: 1px solid var(--line-faint);
  white-space: nowrap;
}

.map-node__tooltip {
  position: absolute;
  bottom: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  width: max-content;
  max-width: 180px;
  background: var(--space-abyss);
  border: 1px solid var(--line-faint);
  color: var(--desert-cream);
  font-size: 12px;
  line-height: 1.6;
  padding: 8px 10px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--ease), transform var(--ease), visibility var(--ease);
  pointer-events: none;
  z-index: 3;
}

.map-node:hover .map-node__tooltip,
.map-node:focus-within .map-node__tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.map-node--center {
  left: 50%;
  top: 50%;
}

.map-node--north {
  left: 16%;
  top: 18%;
}

.map-node--east {
  left: 82%;
  top: 17%;
}

.map-node--south {
  left: 80%;
  top: 70%;
}

.map-node--west {
  left: 25%;
  top: 78%;
}

.map-node--far {
  left: 91%;
  top: 47%;
}

.about-data__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.about-data__stats .stat-card {
  background: var(--night-blue);
  border-left: 3px solid var(--signal-orange);
  padding: 18px 14px;
}

.about-data__stats .stat-card__value {
  display: block;
  font-family: var(--font-data);
  font-size: clamp(2rem, 3.4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--desert-cream);
  margin-bottom: 4px;
}

.about-data__stats .stat-card__label {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
}

.about-data__figure {
  margin: 0 0 28px;
}

.about-data__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--about-card-line);
}

.about-data__figure-caption {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-top: 10px;
  padding-left: 12px;
  border-left: 2px solid var(--neon-green);
}

.about-data__rows {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line-faint);
}

.about-data__rows .data-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-faint);
}

.about-data__rows .data-label {
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--text-secondary);
}

.about-data__rows .data-value {
  font-size: 14px;
  color: var(--desert-cream);
  text-align: right;
}

.about-security__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: center;
}

.about-security__copy {
  font-size: 15px;
  line-height: 1.85;
  color: var(--steel-blue);
  max-width: 720px;
  margin: 0 0 20px;
}

.about-security__list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.about-security__list li {
  position: relative;
  padding-left: 26px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--desert-cream);
}

.about-security__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 14px;
  height: 14px;
  background: var(--neon-green);
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
}

.about-security__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.about-security__visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background:
    radial-gradient(circle at 50% 38%, rgba(184, 255, 34, 0.1) 0%, transparent 48%),
    var(--space-abyss);
  border: 1px solid var(--line-faint);
  padding: 32px 24px;
  clip-path: polygon(0 8%, 8% 0, 100% 0, 100% calc(100% - 8%), calc(100% - 8%) 100%, 0 100%);
}

.about-security__badge {
  width: 148px;
  height: auto;
  margin-bottom: 18px;
}

.about-security__badge .about-security__pulse-dot {
  transform-origin: center;
  animation: aboutPulse 1.8s ease-in-out infinite;
}

@keyframes aboutPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.about-security__badge-text {
  font-size: 15px;
  font-weight: 700;
  color: var(--desert-cream);
  margin: 0 0 6px;
  line-height: 1.6;
}

.about-security__hover-note {
  font-size: 12px;
  color: var(--text-secondary);
  margin: 0;
}

.about-ningxia {
  position: relative;
}

.about-ningxia::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(125deg, var(--about-sand-start) 0%, var(--about-sand-end) 42%, transparent 78%),
    linear-gradient(55deg, transparent 40%, rgba(255, 92, 0, 0.12) 75%, rgba(255, 199, 0, 0.08) 100%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 6vw), 0 100%);
}

.about-ningxia .container {
  position: relative;
  z-index: 1;
}

.about-ningxia__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

.about-ningxia__copy {
  font-size: 15px;
  line-height: 1.9;
  color: var(--steel-blue);
  max-width: 760px;
  margin: 0 0 16px;
}

.about-ningxia__metaphor {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 20px 0 24px;
}

.about-ningxia__metaphor-card {
  background: rgba(30, 25, 25, 0.82);
  border: 1px solid rgba(122, 156, 198, 0.2);
  padding: 18px 16px;
  transition: border-color var(--ease);
}

.about-ningxia__metaphor-card:hover {
  border-color: rgba(184, 255, 34, 0.4);
}

.about-ningxia__metaphor-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  font-size: 18px;
  color: var(--neon-green);
  border: 1px solid var(--neon-green);
  margin-bottom: 10px;
}

.about-ningxia__metaphor-card h3 {
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 900;
  color: var(--desert-cream);
  margin: 0 0 8px;
}

.about-ningxia__metaphor-card p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin: 0;
}

.about-ningxia__contact {
  background: var(--space-abyss);
  border-left: 3px solid var(--signal-orange);
  padding: 20px 18px;
  margin-top: 16px;
}

.about-ningxia__contact-title {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 900;
  color: var(--desert-cream);
  margin: 0 0 10px;
}

.about-ningxia__contact-line {
  font-family: var(--font-data);
  font-size: 14px;
  color: var(--desert-cream);
  margin: 0 0 6px;
  line-height: 1.7;
}

.about-ningxia__contact-note {
  font-size: 13px;
  color: var(--text-secondary);
  margin: 10px 0 0;
  line-height: 1.7;
}

.about-ningxia__quote {
  background: rgba(10, 23, 51, 0.72);
  border: 1px solid rgba(255, 92, 0, 0.3);
  padding: 28px 22px;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
  align-self: center;
}

.about-ningxia__quote blockquote {
  margin: 0 0 22px;
  padding: 0;
}

.about-ningxia__quote blockquote p {
  font-family: var(--font-head);
  font-size: clamp(1.3rem, 2vw, 1.7rem);
  font-weight: 900;
  font-style: oblique 8deg;
  line-height: 1.5;
  color: var(--desert-cream);
  margin: 0;
}

.about-ningxia__quote blockquote p:first-child {
  color: var(--neon-green);
}

.about-ningxia__quote-note {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 16px 0 0;
}

.about-ningxia__quote-note a {
  color: var(--steel-blue);
}

@media (min-width: 640px) {
  .page-about .section {
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .about-hero__metrics {
    grid-template-columns: repeat(4, 1fr);
  }

  .about-mission__list {
    grid-template-columns: 1fr 1fr;
  }

  .about-data__stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .about-ningxia__metaphor {
    grid-template-columns: 1fr 1fr;
  }

  .about-ningxia__layout {
    grid-template-columns: 1.1fr 0.9fr;
  }

  .timeline__item {
    grid-template-columns: 96px 1fr;
  }

  .timeline__year {
    width: 72px;
    height: 72px;
    font-size: 18px;
  }

  .timeline__item::before {
    left: 35px;
  }
}

@media (min-width: 960px) {
  .about-hero__grid {
    grid-template-columns: 1.5fr 0.7fr;
    gap: 48px;
    align-items: start;
  }

  .about-hero__panel {
    margin-top: 52px;
  }

  .about-mission__grid {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }

  .about-data__layout {
    grid-template-columns: 1.3fr 0.7fr;
    gap: 28px;
  }

  .about-data__stats {
    grid-template-columns: 1fr 1fr;
  }

  .about-security__layout {
    grid-template-columns: 1fr 0.8fr;
    gap: 56px;
  }

  .timeline {
    max-width: 880px;
  }

  .timeline__card {
    padding: 22px 24px;
  }
}

@media (min-width: 1200px) {
  .about-data__stats {
    grid-template-columns: 1fr 1fr;
  }

  .about-ningxia::before {
    clip-path: polygon(0 0, 100% 12%, 100% 100%, 0 100%);
  }
}