.page-about {
  --about-line: rgba(212, 175, 55, 0.32);
}

.page-about .breadcrumb {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 20px 20px 0;
}

.page-about .about-hero {
  position: relative;
  min-height: 72vh;
  display: flex;
  align-items: flex-end;
  background: var(--color-primary-deep);
  overflow: hidden;
  border-bottom: 4px solid var(--color-secondary-gold);
}

.page-about .about-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-about .about-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.32;
}

.page-about .about-hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(10, 30, 63, 0.70) 0%, rgba(10, 30, 63, 0.90) 60%, rgba(10, 30, 63, 0.98) 100%);
}

.page-about .about-hero__year {
  position: absolute;
  right: -0.03em;
  bottom: 0.02em;
  z-index: 1;
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: clamp(4.5rem, 17vw, 15rem);
  line-height: 0.85;
  letter-spacing: -0.05em;
  color: rgba(212, 175, 55, 0.14);
  white-space: nowrap;
  pointer-events: none;
}

.page-about .about-hero__body {
  position: relative;
  z-index: 2;
  width: 100%;
  padding-bottom: 48px;
}

.page-about .about-hero__content {
  max-width: 760px;
}

.page-about .about-hero__title {
  font-family: var(--font-headline);
  font-size: var(--h1-size);
  line-height: 1.08;
  color: var(--color-text-light);
  margin: 16px 0 14px;
}

.page-about .about-hero__lead {
  font-size: 1rem;
  line-height: 1.8;
  color: rgba(245, 245, 240, 0.88);
  max-width: 45em;
}

.page-about .about-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 22px;
}

.page-about .about-hero__stat {
  font-family: var(--font-data);
  font-size: 0.85rem;
  color: rgba(245, 245, 240, 0.75);
}

.page-about .about-journey {
  background: var(--color-bg-neutral);
}

.page-about .about-journey__layout {
  display: grid;
  gap: 36px;
  margin-top: 40px;
}

.page-about .about-timeline {
  position: relative;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 16px;
  bottom: 16px;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-secondary-gold) 0%, var(--color-electric-blue) 40%, var(--color-violet-energy) 68%, var(--color-secondary-gold) 100%);
  opacity: 0.55;
}

.page-about .about-timeline__item {
  position: relative;
  padding-left: 50px;
  margin-bottom: 22px;
}

.page-about .about-timeline__item:last-child {
  margin-bottom: 0;
}

.page-about .about-timeline__node {
  position: absolute;
  left: 10px;
  top: 18px;
  z-index: 2;
  width: 18px;
  height: 18px;
  filter: drop-shadow(0 0 4px rgba(212, 175, 55, 0.35));
  transition: transform 0.3s ease, filter 0.3s ease;
}

.page-about .about-timeline__node-ring {
  fill: var(--color-primary-deep);
  stroke: var(--color-secondary-gold);
  stroke-width: 1.8;
}

.page-about .about-timeline__node-core {
  fill: var(--color-secondary-gold);
}

.page-about .about-timeline__item--v2 .about-timeline__node-ring {
  fill: var(--color-electric-blue);
  stroke: var(--color-secondary-gold);
}

.page-about .about-timeline__item--v3 .about-timeline__node-ring {
  fill: var(--color-violet-energy);
  stroke: var(--color-secondary-gold);
}

.page-about .about-timeline__item--v4 .about-timeline__node-ring {
  fill: var(--color-primary-deep);
  stroke: var(--color-secondary-gold);
}

.page-about .about-timeline__item--v4 .about-timeline__node {
  filter: drop-shadow(0 0 8px rgba(212, 175, 55, 0.65));
}

.page-about .about-timeline__item:hover .about-timeline__node,
.page-about .about-timeline__item.is-revealed .about-timeline__node {
  transform: scale(1.22);
  filter: drop-shadow(0 0 8px rgba(212, 175, 55, 0.70));
}

.page-about .about-timeline__card {
  border-left: 3px solid var(--color-secondary-gold);
}

.page-about .about-timeline__date {
  font-family: var(--font-data);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--color-primary-deep);
  margin-bottom: 6px;
}

.page-about .about-timeline__card h3 {
  font-family: var(--font-headline);
  font-size: 1.22rem;
  margin: 0 0 8px;
}

.page-about .about-timeline__card p {
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--color-muted);
  margin: 0;
}

.page-about .about-timeline__card p.about-timeline__extra {
  font-size: 0.85rem;
  line-height: 1.6;
  border-top: 1px dashed var(--color-border);
  padding-top: 10px;
  margin-top: 12px;
  color: var(--color-muted);
  opacity: 0.75;
  transition: opacity 0.3s ease;
}

.page-about .about-timeline__card:hover p.about-timeline__extra {
  opacity: 1;
}

.page-about .about-journey__figure {
  margin: 0;
  padding: 10px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  align-self: start;
}

.page-about .about-journey__figure img {
  width: 100%;
  height: auto;
  display: block;
}

.page-about .about-journey__figure figcaption {
  margin-top: 8px;
  font-family: var(--font-data);
  font-size: 0.78rem;
  text-align: center;
  color: var(--color-muted);
}

.page-about .about-mission {
  position: relative;
  background: linear-gradient(135deg, var(--color-dark-surface) 0%, var(--color-primary-deep) 100%);
  overflow: hidden;
}

.page-about .about-mission__deco {
  position: absolute;
  right: -0.05em;
  top: 0.15em;
  z-index: 0;
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: clamp(2.8rem, 9vw, 6rem);
  letter-spacing: 0.02em;
  color: rgba(212, 175, 55, 0.07);
  pointer-events: none;
}

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

.page-about .about-mission__grid {
  display: grid;
  gap: 40px;
}

.page-about .about-mission__lead {
  font-size: 1.05rem;
  line-height: 1.8;
  color: rgba(245, 245, 240, 0.92);
  margin: 16px 0 12px;
}

.page-about .about-mission__text {
  font-size: 0.96rem;
  line-height: 1.8;
  color: rgba(245, 245, 240, 0.80);
  margin: 0;
}

.page-about .about-mission__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.page-about .about-mission__stat {
  padding: 20px 14px;
  background: rgba(11, 40, 74, 0.55);
  border: 1px solid rgba(212, 175, 55, 0.28);
}

.page-about .about-mission__label {
  display: block;
  margin-top: 6px;
  font-size: 0.85rem;
  color: rgba(245, 245, 240, 0.70);
}

.page-about .about-team {
  background: var(--color-bg-neutral);
}

.page-about .about-team__card {
  padding: 22px 20px;
}

.page-about .about-team__num {
  font-family: var(--font-headline);
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1;
  color: var(--color-primary-deep);
  margin-bottom: 12px;
}

.page-about .about-team__num small {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-muted);
  margin-left: 2px;
}

.page-about .about-team__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.page-about .about-xinjiang {
  background: var(--color-bg-neutral);
  border-top: 1px solid var(--color-border);
}

.page-about .about-xinjiang__layout {
  display: grid;
  gap: 36px;
  align-items: center;
}

.page-about .about-xinjiang__figure {
  margin: 0;
  padding: 8px;
  background: #fff;
  border: 1px solid var(--color-border);
  box-shadow: 0 12px 28px rgba(26, 26, 46, 0.10);
}

.page-about .about-xinjiang__figure img {
  width: 100%;
  height: auto;
  display: block;
}

.page-about .about-xinjiang__lead {
  font-size: 1.02rem;
  line-height: 1.75;
  color: var(--color-text-dark);
  margin: 16px 0 18px;
}

.page-about .about-xinjiang__list {
  list-style: none;
  padding: 0;
  margin: 0 0 26px;
}

.page-about .about-xinjiang__list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 10px;
  font-size: 0.94rem;
  line-height: 1.65;
  color: var(--color-text-dark);
}

.page-about .about-xinjiang__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.5em;
  width: 10px;
  height: 10px;
  background: var(--color-secondary-gold);
  transform: rotate(45deg);
}

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

.page-about .about-epilogue {
  padding: 68px 0;
  background: var(--color-primary-deep);
  text-align: center;
}

.page-about .about-epilogue__text {
  font-family: var(--font-decor);
  font-size: 1.28rem;
  line-height: 1.7;
  color: rgba(245, 245, 240, 0.88);
  max-width: 22em;
  margin: 0 auto 22px;
}

@media (min-width: 768px) {
  .page-about .about-hero {
    min-height: 80vh;
  }

  .page-about .about-journey__layout {
    grid-template-columns: 1.25fr 0.75fr;
    align-items: center;
  }

  .page-about .about-mission__grid {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
  }

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

  .page-about .about-mission__stat {
    padding: 26px 22px;
  }

  .page-about .about-team__num {
    font-size: 3rem;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero__body {
    padding-bottom: 72px;
  }

  .page-about .about-journey__layout {
    margin-top: 52px;
  }

  .page-about .about-epilogue {
    padding: 88px 0;
  }
}