/* ===== page-about 品牌档案页 · 专属样式 ===== */
.page-about .section {
  padding: 72px 0;
}
.page-about .section--origin {
  padding: 0;
}
.page-about .section--origin .container {
  padding-top: 72px;
  padding-bottom: 72px;
}
.page-about .container--narrow {
  max-width: 880px;
}
.page-about .section-head {
  margin-bottom: 40px;
  text-align: left;
}
.page-about .section-eyebrow {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--color-orange);
}
.page-about .section-title {
  margin: 0;
  font-size: clamp(24px, 3.4vw, 36px);
  line-height: 1.25;
  color: var(--color-space);
}
.page-about .section-desc {
  margin: 12px 0 0;
  max-width: 640px;
  color: var(--color-gray);
  line-height: 1.8;
}
.page-about .section--dark .section-title {
  color: var(--color-white);
}
.page-about .section--dark .section-desc {
  color: rgba(244, 247, 251, .68);
}
.page-about .section--dark .section-eyebrow {
  color: var(--color-cyan);
}

/* 页面头部 */
.page-about .page-header {
  position: relative;
  padding: 48px 0 64px;
  background: var(--color-space);
  color: var(--color-white);
  overflow: hidden;
}
.page-about .page-header::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -100px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(123, 75, 255, .32), transparent 70%);
}
.page-about .page-header::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-orange), var(--color-cyan), var(--color-purple));
}
.page-about .page-header-inner {
  position: relative;
  z-index: 2;
}
.page-about .breadcrumb {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
}
.page-about .breadcrumb-item {
  color: var(--color-gray);
  text-decoration: none;
}
.page-about .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 12px;
  color: var(--color-gray);
}
.page-about .breadcrumb-item.is-current {
  color: var(--color-white);
}
.page-about .page-eyebrow {
  margin-top: 32px;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--color-cyan);
}
.page-about .page-title {
  margin: 12px 0 0;
  font-size: clamp(28px, 5vw, 44px);
  line-height: 1.2;
  letter-spacing: .02em;
}
.page-about .page-subtitle {
  margin: 16px 0 0;
  max-width: 720px;
  color: rgba(244, 247, 251, .75);
  font-size: 16px;
  line-height: 1.8;
}

/* 品牌初衷 */
.page-about .origin-hero {
  position: relative;
  height: clamp(280px, 48vw, 460px);
  overflow: hidden;
}
.page-about .origin-hero-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-about .origin-hero-mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 27, 61, .08) 0%, rgba(11, 27, 61, .55) 60%, rgba(11, 27, 61, .88) 100%);
}
.page-about .origin-hero-content {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  padding: 0 24px 28px;
}
.page-about .origin-kicker {
  display: inline-block;
  margin-bottom: 16px;
  padding: 6px 16px;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: .2em;
  color: var(--color-cyan);
  background: rgba(11, 27, 61, .6);
  border: 1px solid rgba(0, 229, 255, .35);
  border-radius: 999px;
}
.page-about .origin-quote {
  margin: 0;
  font-size: clamp(22px, 3.4vw, 40px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--color-white);
}
.page-about .origin-quote-mark {
  display: block;
  margin-top: 12px;
  font-size: 14px;
  color: rgba(244, 247, 251, .72);
}
.page-about .origin-grid {
  display: grid;
  gap: 32px;
  padding-top: 56px;
}
.page-about .origin-main .section-title {
  margin-bottom: 20px;
}
.page-about .origin-main p {
  margin: 0 0 18px;
  line-height: 1.9;
  color: var(--color-text);
}
.page-about .origin-side {
  align-self: start;
  margin-top: 8px;
  padding-left: 24px;
  border-left: 3px solid var(--color-orange);
}
.page-about .note-kicker {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--color-orange);
}
.page-about .origin-side p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-gray);
}
.page-about .note-line {
  display: block;
  width: 48px;
  height: 2px;
  margin-top: 20px;
  background: var(--color-cyan);
}
.page-about .origin-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 56px;
}
.page-about .origin-stat {
  padding: 24px 20px;
  background: var(--color-white);
  border: 1px solid rgba(11, 27, 61, .08);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}
.page-about .origin-stat-num {
  display: block;
  font-family: var(--font-data);
  font-size: 40px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-space);
}
.page-about .origin-stat-unit {
  font-size: 20px;
  color: var(--color-orange);
}
.page-about .origin-stat-label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-gray);
}

/* 发展时间轴 */
.page-about .section--timeline {
  background: var(--color-ice);
}
.page-about .timeline {
  position: relative;
  padding-left: 40px;
}
.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--color-orange) 0%, var(--color-cyan) 50%, var(--color-purple) 100%);
}
.page-about .timeline-item {
  position: relative;
  padding-bottom: 24px;
}
.page-about .timeline-marker {
  position: absolute;
  left: -40px;
  top: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-space);
  border: 2px solid var(--color-orange);
  color: var(--color-white);
  transition: background .25s ease, border-color .25s ease;
}
.page-about .timeline-marker span {
  font-family: var(--font-data);
  font-size: 10px;
  font-weight: 700;
}
.page-about .timeline-card {
  position: relative;
  padding: 20px 20px 16px;
  background: var(--color-white);
  border: 1px solid rgba(11, 27, 61, .06);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  transition: box-shadow .25s ease, transform .25s ease;
}
.page-about .timeline-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 20px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--color-orange);
  opacity: 0;
  transition: opacity .25s ease;
}
.page-about .timeline-card h3 {
  margin: 0 0 8px;
  font-size: 18px;
  color: var(--color-space);
}
.page-about .timeline-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-gray);
}
.page-about .timeline-tag {
  display: inline-block;
  margin-top: 12px;
  padding: 4px 12px;
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--color-cyan);
  background: rgba(0, 229, 255, .08);
  border: 1px solid rgba(0, 229, 255, .18);
  border-radius: 999px;
}
.page-about .timeline-item:hover .timeline-card {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
}
.page-about .timeline-item:hover .timeline-card::before {
  opacity: 1;
}
.page-about .timeline-item:hover .timeline-marker {
  background: var(--color-orange);
  border-color: var(--color-orange);
}

/* 数据实力 */
.page-about .section--data {
  position: relative;
  overflow: hidden;
  background: var(--color-space);
}
.page-about .section--data::before {
  content: "";
  position: absolute;
  top: -160px;
  left: -160px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(123, 75, 255, .22), transparent 70%);
  pointer-events: none;
}
.page-about .section--data::after {
  content: "";
  position: absolute;
  right: -120px;
  bottom: -120px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 229, 255, .16), transparent 70%);
  pointer-events: none;
}
.page-about .data-layout {
  display: grid;
  gap: 32px;
  align-items: center;
}
.page-about .data-cards {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 16px;
}
.page-about .data-card {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 24px;
  background: rgba(244, 247, 251, .04);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  transition: transform .25s ease, border-color .25s ease;
}
.page-about .data-card:hover {
  transform: translateX(4px);
  border-color: rgba(0, 229, 255, .4);
}
.page-about .data-card-icon {
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 4px;
}
.page-about .data-card-icon--diamond {
  background: var(--color-orange);
  border-radius: 3px;
  box-shadow: 0 0 0 4px rgba(255, 107, 0, .18);
  transform: rotate(45deg);
}
.page-about .data-card-icon--circle {
  background: var(--color-cyan);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(0, 229, 255, .15);
}
.page-about .data-card-icon--triangle {
  width: 18px;
  height: 16px;
  background: var(--color-green);
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
}
.page-about .data-card-body h3 {
  margin: 0 0 6px;
  font-size: 18px;
  color: var(--color-white);
}
.page-about .data-card-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(244, 247, 251, .68);
}
.page-about .league-details {
  position: relative;
  z-index: 2;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: rgba(244, 247, 251, .04);
  overflow: hidden;
}
.page-about .league-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 700;
  color: var(--color-white);
}
.page-about .league-summary::-webkit-details-marker {
  display: none;
}
.page-about .league-summary::after {
  content: "+";
  font-family: var(--font-data);
  font-size: 22px;
  color: var(--color-cyan);
  transition: transform .3s ease;
}
.page-about .league-details[open] .league-summary::after {
  content: "−";
}
.page-about .league-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0 20px 20px;
}
.page-about .league-tag {
  display: inline-block;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-cyan);
  background: rgba(0, 229, 255, .12);
  border: 1px solid rgba(0, 229, 255, .3);
  border-radius: 999px;
}
.page-about .data-figure {
  position: relative;
  z-index: 2;
  margin: 0;
}
.page-about .data-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}
.page-about .data-figure figcaption,
.page-about .global-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--color-gray);
}
.page-about .data-band {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  margin-top: 48px;
  padding: 24px;
  background: linear-gradient(90deg, rgba(57, 255, 20, .1), rgba(0, 229, 255, .06));
  border: 1px solid rgba(57, 255, 20, .25);
  border-radius: var(--radius);
}
.page-about .data-band-num {
  font-family: var(--font-data);
  font-size: 44px;
  font-weight: 700;
  line-height: 1;
  color: var(--color-green);
}
.page-about .data-band-unit {
  font-size: 22px;
}
.page-about .data-band-text {
  flex: 1;
  min-width: 200px;
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(244, 247, 251, .78);
}
.page-about .data-band-line {
  width: 80px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--color-green), transparent);
}

/* 全球华人服务 */
.page-about .section--global {
  background: var(--color-ice);
  overflow: hidden;
}
.page-about .global-layout {
  display: grid;
  gap: 40px;
  align-items: center;
}
.page-about .global-figure {
  margin: 0;
}
.page-about .global-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}
.page-about .global-copy h3 {
  position: relative;
  margin: 32px 0 8px;
  padding-left: 16px;
  font-size: 20px;
  color: var(--color-space);
}
.page-about .global-copy h3:first-child {
  margin-top: 0;
}
.page-about .global-copy h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  border-radius: 4px;
  background: var(--color-orange);
}
.page-about .global-copy p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text);
}
.page-about .legend-block {
  margin-top: 40px;
  padding: 24px;
  background: var(--color-white);
  border: 1px solid rgba(11, 27, 61, .08);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}
.page-about .global-copy .legend-title {
  margin: 0 0 16px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--color-gray);
}
.page-about .legend-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.page-about .legend-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-space);
}
.page-about .legend-dot {
  flex: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.page-about .legend-dot--orange {
  background: var(--color-orange);
}
.page-about .legend-dot--cyan {
  background: var(--color-cyan);
}
.page-about .legend-dot--purple {
  background: var(--color-purple);
}
.page-about .legend-dot--green {
  background: var(--color-green);
}
.page-about .global-map {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 56px;
}
.page-about .global-map .map-grid path {
  fill: none;
  stroke: var(--color-navy);
  stroke-width: 1;
  opacity: .18;
  stroke-dasharray: 3 8;
}
.page-about .global-map .map-links path {
  fill: none;
  stroke: var(--color-cyan);
  stroke-width: 2;
  opacity: .75;
  stroke-dasharray: 6 8;
}
.page-about .global-map .map-nodes circle {
  fill: var(--color-orange);
}
.page-about .global-map .map-nodes circle:nth-of-type(n+3) {
  fill: var(--color-purple);
}

/* 品牌愿景 */
.page-about .section--vision {
  position: relative;
  overflow: hidden;
  background: var(--color-space);
}
.page-about .section--vision::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(123, 75, 255, .28), transparent 70%);
}
.page-about .section--vision::after {
  content: "";
  position: absolute;
  bottom: -100px;
  left: -60px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 107, 0, .16), transparent 70%);
}
.page-about .vision-block {
  position: relative;
  z-index: 2;
  padding: 16px 0;
  text-align: center;
}
.page-about .vision-block .section-eyebrow {
  color: var(--color-purple);
}
.page-about .vision-text {
  margin: 20px 0 0;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(244, 247, 251, .72);
}
.page-about .vision-line {
  display: block;
  width: 64px;
  height: 3px;
  margin: 32px auto;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--color-orange), var(--color-cyan), var(--color-purple));
}
.page-about .vision-quote {
  margin: 0 auto;
  max-width: 680px;
  font-size: clamp(18px, 2.4vw, 24px);
  font-weight: 700;
  line-height: 1.6;
  color: var(--color-white);
}

/* CTA */
.page-about .section--cta {
  background: var(--color-ice);
}
.page-about .cta-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 28px;
  padding: 48px 32px;
  overflow: hidden;
  background: linear-gradient(120deg, var(--color-space), var(--color-navy));
  border-radius: calc(var(--radius) * 1.5);
}
.page-about .cta-panel::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 229, 255, .18), transparent 70%);
}
.page-about .cta-copy {
  position: relative;
  z-index: 2;
}
.page-about .cta-title {
  margin: 0;
  font-size: clamp(22px, 3vw, 28px);
  color: var(--color-white);
}
.page-about .cta-copy p {
  margin: 12px 0 0;
  line-height: 1.7;
  color: rgba(244, 247, 251, .7);
}
.page-about .cta-actions {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  flex: none;
}
.page-about .cta-actions .btn-ghost {
  border-color: rgba(244, 247, 251, .5);
  color: var(--color-white);
}

/* 桌面端增强 */
@media (min-width: 768px) {
  .page-about .section {
    padding: 96px 0;
  }
  .page-about .section--origin {
    padding: 0;
  }
  .page-about .section--origin .container {
    padding-top: 96px;
    padding-bottom: 96px;
  }
  .page-about .page-header {
    padding: 64px 0 80px;
  }
  .page-about .origin-hero-content {
    padding: 0 64px 48px;
  }
  .page-about .origin-grid {
    grid-template-columns: 1.8fr 1fr;
    gap: 64px;
    padding-top: 72px;
  }
  .page-about .origin-stats {
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 72px;
  }
  .page-about .timeline {
    padding-left: 64px;
  }
  .page-about .timeline::before {
    left: 15px;
  }
  .page-about .timeline-marker {
    left: -64px;
    top: 16px;
    width: 32px;
    height: 32px;
  }
  .page-about .timeline-marker span {
    font-size: 12px;
  }
  .page-about .timeline-card {
    padding: 24px 28px 20px;
  }
  .page-about .legend-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-about .cta-panel {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 64px 56px;
  }
}

@media (min-width: 960px) {
  .page-about .data-layout {
    grid-template-columns: 1.15fr 1fr;
    gap: 56px;
  }
  .page-about .global-layout {
    grid-template-columns: 1fr 1.1fr;
    gap: 64px;
  }
  .page-about .section-head {
    margin-bottom: 56px;
  }
}