.page-about {
  --about-gold-soft: rgba(212, 175, 55, 0.18);
  --about-line: rgba(212, 175, 55, 0.35);
  background: var(--c-white);
}

.page-about img {
  max-width: 100%;
  height: auto;
}

.page-about .container {
  width: min(100% - 40px, var(--container));
  margin-inline: auto;
}

.page-about .vertical-note {
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--c-gold);
  text-transform: uppercase;
  writing-mode: vertical-rl;
  margin-right: 16px;
  flex: none;
}

.page-about .section-head {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 28px;
}

.page-about .section-head__title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  line-height: 1.16;
  color: var(--c-primary);
  margin-bottom: 8px;
}

.page-about .section-head__desc {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--c-text-muted);
  max-width: 42em;
}

.page-about .section-head--light .section-head__title {
  color: var(--c-white);
}

.page-about .section-head--light .section-head__desc {
  color: var(--c-text-on-dark);
}

.page-about .stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 1.5rem;
  line-height: 1.2;
  color: var(--c-gold);
  margin-bottom: 4px;
}

.page-about .stat__label {
  font-family: var(--font-data);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--c-text-muted);
}

/* ===== 首屏 ===== */
.page-about .about-hero {
  background: var(--c-primary);
  color: var(--c-text-light);
  padding-top: 32px;
  padding-bottom: 56px;
  position: relative;
  overflow: hidden;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: -140px;
  bottom: -180px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.16) 0%, rgba(212, 175, 55, 0) 72%);
}

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

.page-about .about-hero__grid {
  display: grid;
  gap: 32px;
  margin-top: 24px;
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 5vw, 2.6rem);
  line-height: 1.12;
  color: var(--c-white);
  margin: 12px 0 16px;
  letter-spacing: 0.01em;
}

.page-about .about-hero__lead {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--c-text-on-dark);
  max-width: 42em;
  margin-bottom: 24px;
}

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

.page-about .about-hero .btn--outline {
  border-color: rgba(255, 255, 255, 0.55);
  color: var(--c-text-light);
}

.page-about .about-hero__frame {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-height: 260px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  border: 1px solid rgba(212, 175, 55, 0.35);
  padding: 24px;
}

.page-about .about-hero__frame .corner-marks {
  position: absolute;
  inset: 10px;
  pointer-events: none;
  background:
    linear-gradient(var(--c-gold), var(--c-gold)) top left / 22px 2px,
    linear-gradient(var(--c-gold), var(--c-gold)) top left / 2px 22px,
    linear-gradient(var(--c-gold), var(--c-gold)) top right / 22px 2px,
    linear-gradient(var(--c-gold), var(--c-gold)) top right / 2px 22px,
    linear-gradient(var(--c-gold), var(--c-gold)) bottom left / 22px 2px,
    linear-gradient(var(--c-gold), var(--c-gold)) bottom left / 2px 22px,
    linear-gradient(var(--c-gold), var(--c-gold)) bottom right / 22px 2px,
    linear-gradient(var(--c-gold), var(--c-gold)) bottom right / 2px 22px;
  background-repeat: no-repeat;
}

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

.page-about .about-hero__stats .stat {
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(212, 175, 55, 0.12);
  padding: 16px 12px;
  text-align: center;
}

.page-about .about-hero__stats .stat__label {
  color: var(--c-text-on-dark);
}

.page-about .hero-frame__scale {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  font-family: var(--font-data);
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  color: rgba(245, 245, 245, 0.55);
}

/* ===== 品牌故事 ===== */
.page-about .about-story {
  background: var(--c-white);
  padding: 64px 0;
}

.page-about .story-grid {
  display: grid;
  gap: 28px;
}

.page-about .story-card {
  background: var(--c-white);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(42, 58, 80, 0.08);
  overflow: hidden;
  box-shadow: 0 12px 32px rgba(10, 30, 60, 0.08);
  transition: box-shadow 0.2s ease;
  margin-top: 8px;
}

.page-about .story-card:hover {
  box-shadow: 0 18px 40px rgba(10, 30, 60, 0.12);
}

.page-about .story-card__bg {
  margin: 0;
}

.page-about .story-card__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
}

.page-about .story-card__body {
  padding: 28px 24px 32px;
  display: grid;
  gap: 20px;
}

.page-about .story-card__paragraph {
  font-family: var(--font-body);
  font-size: 0.98rem;
  line-height: 1.9;
  color: var(--c-text-body);
  margin: 0;
}

.page-about .story-aside {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-about .story-aside .data-card {
  background: var(--c-bg);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  border: 1px solid transparent;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.page-about .story-aside .data-card:hover {
  border-color: rgba(212, 175, 55, 0.6);
  transform: translateY(-2px);
}

.page-about .story-aside .data-card--accent {
  background: var(--c-primary);
  border-top: 3px solid var(--c-gold);
}

.page-about .story-aside .data-card--accent .data-card__title {
  color: var(--c-white);
}

.page-about .story-aside .data-card__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--c-primary);
  margin-bottom: 16px;
}

.page-about .story-aside .data-card__body {
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--c-text-body);
  margin-bottom: 14px;
}

.page-about .story-aside .data-card--accent .data-list__label {
  color: var(--c-text-on-dark);
}

.page-about .story-aside .data-card--accent .data-list__value {
  color: var(--c-gold);
}

/* ===== 时间线 ===== */
.page-about .about-timeline {
  background: var(--c-primary);
  padding: 64px 0;
}

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

.page-about .timeline-track {
  position: relative;
  padding-left: 32px;
}

.page-about .timeline-track::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 10px;
  bottom: 36px;
  width: 2px;
  background: var(--about-line);
  border-radius: 999px;
}

.page-about .timeline-node {
  position: relative;
  padding: 0 0 36px 20px;
}

.page-about .timeline-node::before {
  content: "";
  position: absolute;
  left: -33px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--c-gold);
  box-shadow: 0 0 0 5px var(--about-gold-soft), 0 0 0 7px rgba(10, 30, 60, 0.9);
}

.page-about .timeline-node__year {
  font-family: var(--font-data);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--c-gold);
  margin-bottom: 8px;
}

.page-about .timeline-node__card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-left: 3px solid var(--c-gold);
  border-radius: var(--radius-sm);
  padding: 18px 18px 20px;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.page-about .timeline-node__card:hover {
  background: rgba(255, 255, 255, 0.09);
  border-left-color: var(--c-red);
}

.page-about .timeline-node__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--c-white);
  margin-bottom: 8px;
}

.page-about .timeline-node__text {
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--c-text-on-dark);
  margin: 0;
}

.page-about .timeline-visual {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-about .media-frame {
  overflow: hidden;
  border-radius: var(--radius-md);
}

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

.page-about .timeline-visual__note {
  font-family: var(--font-data);
  font-size: 0.74rem;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--c-text-on-dark);
  border-left: 2px solid var(--c-gold);
  padding-left: 14px;
  margin: 0;
}

/* ===== 覆盖体系 ===== */
.page-about .about-coverage {
  background: var(--c-bg);
  padding: 64px 0;
}

.page-about .coverage-grid {
  display: grid;
  gap: 32px;
}

.page-about .coverage-network__ring {
  position: relative;
  max-width: 380px;
  margin-inline: auto;
}

.page-about .coverage-network__ring svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .cn-line {
  stroke: rgba(212, 175, 55, 0.4);
  stroke-width: 1;
  stroke-dasharray: 4 4;
}

.page-about .cn-center {
  fill: var(--c-primary);
  stroke: var(--c-gold);
  stroke-width: 2;
}

.page-about .cn-center-text {
  fill: var(--c-gold);
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: 0.04em;
}

.page-about .cn-node {
  stroke: var(--c-gold);
  stroke-width: 1;
}

.page-about .cn-node--eu {
  fill: var(--c-primary);
}

.page-about .cn-node--asia {
  fill: var(--c-secondary);
}

.page-about .cn-node--other {
  fill: var(--c-primary);
  stroke: var(--c-red);
}

.page-about .cn-node-text {
  fill: var(--c-white);
  font-family: var(--font-data);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-about .coverage-network__label {
  text-align: center;
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--c-text-muted);
  margin-top: 8px;
}

.page-about .coverage-details__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--c-primary);
  margin-bottom: 18px;
}

.page-about .coverage-bars {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 18px;
}

.page-about .bar-row {
  display: grid;
  grid-template-columns: 6.5em 1fr 2.5em;
  align-items: center;
  gap: 10px;
}

.page-about .bar-row__label {
  font-family: var(--font-data);
  font-size: 0.76rem;
  color: var(--c-text-body);
}

.page-about .bar-row__track {
  height: 8px;
  background: rgba(42, 58, 80, 0.12);
  border-radius: 999px;
  overflow: hidden;
}

.page-about .bar-row__fill {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--c-gold-dark), var(--c-gold));
}

.page-about .bar-row--total .bar-row__fill {
  background: linear-gradient(90deg, var(--c-gold), var(--c-amber));
}

.page-about .bar-row__value {
  font-family: var(--font-data);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--c-primary);
  text-align: right;
}

.page-about .coverage-details__note {
  font-family: var(--font-body);
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--c-text-muted);
  margin-bottom: 20px;
}

.page-about .coverage-update {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.page-about .coverage-update__item {
  background: var(--c-white);
  border: 1px solid rgba(42, 58, 80, 0.08);
  border-radius: var(--radius-sm);
  padding: 14px 8px;
  text-align: center;
}

.page-about .coverage-update__num {
  display: block;
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--c-red);
  margin-bottom: 2px;
}

.page-about .coverage-update__label {
  font-family: var(--font-data);
  font-size: 0.64rem;
  letter-spacing: 0.06em;
  color: var(--c-text-muted);
}

/* ===== 团队与资质 ===== */
.page-about .about-team {
  background: var(--c-white);
  padding: 64px 0;
}

.page-about .team-grid {
  display: grid;
  gap: 24px;
}

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

.page-about .team-numbers .stat {
  background: var(--c-bg);
  border-radius: var(--radius-md);
  padding: 20px 16px;
  text-align: center;
  border: 1px solid rgba(42, 58, 80, 0.06);
}

.page-about .team-card {
  background: var(--c-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(42, 58, 80, 0.06);
}

.page-about .team-card .media-frame {
  border-radius: 0;
}

.page-about .team-card__content {
  padding: 24px 20px;
}

.page-about .team-card__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--c-primary);
  margin-bottom: 10px;
}

.page-about .team-card__text {
  font-family: var(--font-body);
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--c-text-body);
  margin: 0;
}

.page-about .team-capabilities {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-about .capability-item {
  background: var(--c-bg);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--c-gold);
  padding: 20px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.page-about .capability-item:hover {
  transform: translateY(-2px);
  border-left-color: var(--c-red);
}

.page-about .capability-item__title {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--c-primary);
  margin-bottom: 6px;
}

.page-about .capability-item__text {
  font-family: var(--font-body);
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--c-text-body);
  margin: 0;
}

/* ===== 底部 CTA ===== */
.page-about .about-cta {
  background: var(--c-primary);
  padding: 56px 0;
}

.page-about .about-cta__inner {
  display: grid;
  gap: 24px;
}

.page-about .about-cta__title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3.4vw, 2rem);
  color: var(--c-white);
  margin-bottom: 10px;
}

.page-about .about-cta__desc {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--c-text-on-dark);
  max-width: 34em;
}

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

.page-about .about-cta .btn--outline {
  border-color: rgba(255, 255, 255, 0.5);
  color: var(--c-text-light);
}

/* ===== 响应式布局 ===== */
@media (min-width: 768px) {
  .page-about .about-hero__grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 48px;
  }

  .page-about .story-aside {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .story-aside .data-card:last-child {
    grid-column: span 2;
  }

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

  .page-about .team-numbers {
    grid-column: span 2;
    grid-template-columns: repeat(5, 1fr);
  }

  .page-about .about-cta__inner {
    grid-template-columns: 1.2fr 1fr;
    align-items: center;
    gap: 40px;
  }

  .page-about .about-cta__links {
    justify-content: flex-end;
  }
}

@media (min-width: 1080px) {
  .page-about .story-grid {
    grid-template-columns: 7fr 4fr;
    gap: 32px;
  }

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

  .page-about .story-aside .data-card:last-child {
    grid-column: auto;
  }

  .page-about .timeline-grid {
    grid-template-columns: 7fr 5fr;
    gap: 48px;
  }

  .page-about .timeline-track {
    padding-left: 40px;
  }

  .page-about .coverage-grid {
    grid-template-columns: 5fr 6fr;
    gap: 48px;
    align-items: center;
  }

  .page-about .team-grid {
    grid-template-columns: 1fr 1.2fr 1fr;
    gap: 28px;
    align-items: start;
  }

  .page-about .team-numbers {
    grid-column: auto;
    grid-template-columns: repeat(2, 1fr);
  }
}