.page-about {
  --about-rail: 104px;
  --about-ink-soft: #A9B6D1;
  --about-ink-floor: #4A5670;
  position: relative;
  background: var(--ink-900);
  color: var(--glass-100);
  overflow-x: clip;
}

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

/* ============ 首屏 ============ */
.page-about .about-hero {
  position: relative;
  padding: clamp(96px, 13vw, 168px) 0 clamp(48px, 7vw, 84px);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: -25% -12% auto -12%;
  height: 150%;
  background:
    radial-gradient(58% 52% at 48% 0%, rgba(33, 212, 232, 0.20), rgba(7, 14, 34, 0) 68%),
    radial-gradient(42% 46% at 84% 14%, rgba(255, 91, 31, 0.18), rgba(7, 14, 34, 0) 72%);
  pointer-events: none;
}

.page-about .about-hero .breadcrumb {
  margin-bottom: 20px;
}

.page-about .about-hero__kick {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cyan-400);
}

.page-about .about-hero__title {
  margin: 14px 0 0;
  max-width: 15ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 7.4vw, 96px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: #FFFFFF;
}

.page-about .hl-lime {
  color: var(--lime-400);
  font-family: var(--font-mono);
  font-size: 1.06em;
  letter-spacing: -0.03em;
}

.page-about .hl-orange {
  color: var(--orange-500);
}

.page-about .hl-cyan {
  color: var(--cyan-400);
}

.page-about .about-hero__lede {
  max-width: 46ch;
  margin: 24px 0 0;
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.78;
  color: #C6D2E8;
}

.page-about .about-hero__stats {
  margin-top: clamp(34px, 5vw, 58px);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-hero__stats .data-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 18px 20px;
  background: var(--ink-700);
  border: 0;
  border-radius: 0;
}

.page-about .about-hero__stats .data-card__label {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--grid-text);
}

.page-about .about-hero__stats .data-card__value {
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1;
  color: var(--lime-400);
}

.page-about .about-hero__stats .data-card__unit {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--grid-500);
}

@media (min-width: 768px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ============ 章节骨架 ============ */
.page-about .about-chapter {
  position: relative;
  padding: clamp(56px, 8vw, 104px) 0;
}

.page-about .about-chapter--dark {
  background: var(--ink-900);
  color: var(--glass-100);
}

.page-about .about-chapter--floor {
  background: var(--floor-050);
  color: var(--ink-900);
}

.page-about .about-chapter__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 36px);
}

.page-about .about-rail {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--grid-500);
}

.page-about .about-chapter--floor .about-rail {
  color: #7B88A6;
}

.page-about .about-rail__num {
  font-size: clamp(20px, 2.6vw, 28px);
  letter-spacing: 0;
  line-height: 1;
  color: var(--orange-500);
}

.page-about .about-rail__tick {
  flex: 1;
  height: 1px;
  background: currentColor;
  opacity: 0.32;
}

.page-about .about-main {
  min-width: 0;
}

.page-about .about-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(26px, 4.4vw, 50px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: #FFFFFF;
}

.page-about .about-chapter--floor .about-title {
  color: #0B1530;
}

.page-about .about-lede {
  max-width: 58ch;
  margin: 18px 0 0;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.8;
  color: var(--about-ink-soft);
}

.page-about .about-chapter--floor .about-lede {
  color: var(--about-ink-floor);
}

.page-about .about-main .prose {
  max-width: 60ch;
  margin-top: 18px;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.82;
  color: var(--about-ink-soft);
}

.page-about .about-chapter--floor .prose {
  color: var(--about-ink-floor);
}

.page-about .about-main .prose p {
  margin: 0 0 14px;
}

.page-about .about-main .prose p:last-child {
  margin-bottom: 0;
}

@media (min-width: 900px) {
  .page-about .about-chapter__inner {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: clamp(24px, 4vw, 62px);
  }

  .page-about .about-rail {
    display: block;
    position: sticky;
    top: 118px;
    align-self: start;
  }

  .page-about .about-rail__tick {
    width: 1px;
    height: 68px;
    margin: 16px 0;
    flex: none;
  }

  .page-about .about-rail__coord {
    writing-mode: vertical-rl;
    letter-spacing: 0.36em;
  }
}

/* ============ 使用场景 ============ */
.page-about .scene-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 32px;
}

.page-about .scene-card {
  padding: 22px 20px 24px;
  border: 1px solid var(--line-dark);
  border-left: 3px solid var(--orange-500);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: linear-gradient(140deg, rgba(16, 32, 63, 0.92), rgba(7, 14, 34, 0.72));
}

.page-about .scene-card__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--orange-300);
}

.page-about .scene-card__tag--cyan {
  color: var(--cyan-400);
}

.page-about .scene-card__tag--orange {
  color: var(--lime-400);
}

.page-about .scene-card__title {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: #FFFFFF;
}

.page-about .scene-card__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--about-ink-soft);
}

@media (min-width: 720px) {
  .page-about .scene-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

/* ============ 赛区版图 ============ */
.page-about .zone-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 40px);
  margin-top: 32px;
}

.page-about .zone-map-wrap {
  padding: 18px clamp(10px, 2vw, 22px) 14px;
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  background: linear-gradient(160deg, #FFFFFF 0%, #EEF3FC 100%);
  box-shadow: var(--shadow-soft);
}

.page-about .zone-map {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .zone-map__block {
  fill: rgba(33, 212, 232, 0.12);
  stroke: rgba(16, 32, 63, 0.28);
  stroke-width: 1.5;
  transition: fill 0.25s var(--ease), stroke 0.25s var(--ease);
}

.page-about .zone-map__block:hover {
  fill: rgba(255, 91, 31, 0.20);
  stroke: var(--orange-500);
}

.page-about .zone-map__name {
  fill: #0B1530;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
}

.page-about .zone-map__num {
  fill: #0E7C88;
  font-family: var(--font-mono);
  font-size: 14px;
}

.page-about .zone-map__cap {
  margin: 8px 0 0;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--grid-500);
}

.page-about .zone-side {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-about .zone-legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-about .zone-legend__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border: 1px solid var(--line-light);
  border-radius: var(--radius-sm);
  background: #FFFFFF;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-about .zone-legend__item:hover {
  border-color: var(--orange-500);
  transform: translateX(4px);
}

.page-about .zone-legend__swatch {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  flex: none;
  background: var(--orange-500);
}

.page-about .zone-legend__item:nth-child(2) .zone-legend__swatch { background: var(--cyan-400); }
.page-about .zone-legend__item:nth-child(3) .zone-legend__swatch { background: #12855C; }
.page-about .zone-legend__item:nth-child(4) .zone-legend__swatch { background: var(--orange-300); }
.page-about .zone-legend__item:nth-child(5) .zone-legend__swatch { background: var(--ink-600); }
.page-about .zone-legend__item:nth-child(6) .zone-legend__swatch { background: var(--grid-500); }

.page-about .zone-legend__name {
  font-size: 15px;
  color: #0B1530;
}

.page-about .zone-legend__num {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 16px;
  color: #0E7C88;
}

.page-about .zone-side__figure {
  margin: 0;
}

.page-about .zone-note {
  margin: 0;
  padding: 14px 16px;
  border-left: 3px solid var(--cyan-400);
  background: rgba(33, 212, 232, 0.08);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--about-ink-floor);
}

.page-about .zone-note strong {
  font-family: var(--font-mono);
  font-size: 1.15em;
  color: #0B1530;
}

@media (min-width: 960px) {
  .page-about .zone-layout {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 1fr);
    align-items: start;
  }
}

/* ============ 流程 ============ */
.page-about .process-figure {
  margin: 30px 0 0;
}

.page-about .flow-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 30px;
}

.page-about .flow-step {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 22px 20px 22px;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  background: linear-gradient(150deg, rgba(24, 43, 82, 0.85), rgba(7, 14, 34, 0.6));
}

.page-about .flow-step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 20px;
  right: 20px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--orange-500), var(--cyan-400));
}

.page-about .flow-step__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--orange-300);
}

.page-about .flow-step__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: #FFFFFF;
}

.page-about .flow-step__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--about-ink-soft);
}

.page-about .flow-step__out {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px dashed var(--line-dark);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lime-400);
}

@media (min-width: 720px) {
  .page-about .flow-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }
}

@media (min-width: 1100px) {
  .page-about .flow-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ============ 团队 ============ */
.page-about .team-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 38px);
  margin-top: 30px;
}

.page-about .team-main {
  min-width: 0;
}

.page-about .team-figures {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: var(--line-light);
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .team-figure {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 18px 20px;
  background: #FFFFFF;
}

.page-about .team-figure__value {
  font-family: var(--font-mono);
  font-size: clamp(28px, 3.4vw, 38px);
  line-height: 1;
  color: #0E7C88;
}

.page-about .team-figure__label {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--grid-500);
}

.page-about .team-jumps {
  margin-top: 26px;
  display: grid;
  gap: 10px;
}

.page-about .device-card {
  padding: 14px;
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  background: #FFFFFF;
  box-shadow: var(--shadow-soft);
}

.page-about .device-card .media-frame {
  margin: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-about .device-card__cap {
  margin: 14px 4px 4px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--about-ink-floor);
}

@media (min-width: 900px) {
  .page-about .team-layout {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: start;
  }
}

/* ============ 历程 ============ */
.page-about .timeline {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 30px;
}

.page-about .timeline__stage {
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  background: rgba(16, 32, 63, 0.55);
  overflow: hidden;
}

.page-about .timeline__stage .disclosure__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  background: none;
  border: 0;
  cursor: pointer;
  text-align: left;
  color: #FFFFFF;
  font-family: var(--font-display);
  font-size: clamp(16px, 1.8vw, 20px);
  font-weight: 600;
  transition: background 0.2s var(--ease);
}

.page-about .timeline__stage .disclosure__trigger:hover {
  background: rgba(255, 91, 31, 0.08);
}

.page-about .timeline__stage .disclosure__trigger[aria-expanded="true"] {
  background: rgba(255, 91, 31, 0.10);
}

.page-about .timeline__stage-no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--orange-300);
}

.page-about .timeline__stage-name {
  min-width: 0;
}

.page-about .timeline__stage .disclosure__icon {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
  margin-left: auto;
}

.page-about .timeline__stage .disclosure__icon::before,
.page-about .timeline__stage .disclosure__icon::after {
  content: "";
  position: absolute;
  background: var(--orange-500);
  border-radius: 2px;
}

.page-about .timeline__stage .disclosure__icon::before {
  top: 6px;
  left: 0;
  width: 14px;
  height: 2px;
}

.page-about .timeline__stage .disclosure__icon::after {
  top: 0;
  left: 6px;
  width: 2px;
  height: 14px;
  transition: transform 0.24s var(--ease), opacity 0.24s var(--ease);
}

.page-about .timeline__stage .disclosure__trigger[aria-expanded="true"] .disclosure__icon::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-about .timeline__stage .disclosure__body {
  padding: 0 20px 20px;
}

.page-about .timeline__stage .disclosure__body p {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--about-ink-soft);
}

/* ============ 合作 ============ */
.page-about .partner-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 30px;
}

.page-about .partner-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px 22px 26px;
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  background: #FFFFFF;
  box-shadow: var(--shadow-soft);
}

.page-about .partner-card--accent {
  border-color: rgba(255, 91, 31, 0.5);
  background: linear-gradient(150deg, #FFF3EC 0%, #FFFFFF 62%);
}

.page-about .partner-card__value {
  font-family: var(--font-mono);
  font-size: clamp(34px, 4.6vw, 52px);
  line-height: 1;
  color: #0E7C88;
}

.page-about .partner-card__label {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--grid-500);
}

.page-about .partner-card__text {
  margin: 6px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--about-ink-floor);
}

.page-about .partner-note {
  margin: 26px 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--orange-500);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(255, 91, 31, 0.07);
  font-size: 14.5px;
  line-height: 1.78;
  color: #2A3550;
}

@media (min-width: 820px) {
  .page-about .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

/* ============ 结尾行动 ============ */
.page-about .about-cta {
  position: relative;
  padding: clamp(56px, 8vw, 96px) 0;
  border-top: 1px solid var(--line-dark);
  background:
    radial-gradient(70% 120% at 12% 0%, rgba(255, 91, 31, 0.20), rgba(7, 14, 34, 0) 62%),
    radial-gradient(60% 120% at 92% 100%, rgba(33, 212, 232, 0.18), rgba(7, 14, 34, 0) 66%),
    var(--ink-700);
}

.page-about .about-cta__inner {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-about .about-cta__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(26px, 4vw, 46px);
  line-height: 1.12;
  color: #FFFFFF;
}

.page-about .about-cta__text {
  max-width: 52ch;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: #C6D2E8;
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

.page-about .about-cta__actions .btn {
  min-width: 140px;
  text-align: center;
}

/* ============ 媒体容器与跳转清单微调 ============ */
.page-about .media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(16, 32, 63, 0.9), rgba(33, 212, 232, 0.16));
}

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

.page-about .media-frame__caption {
  font-size: 12.5px;
  letter-spacing: 0.05em;
}

.page-about .jump-list__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  border: 1px solid var(--line-light);
  border-radius: var(--radius-sm);
  background: #FFFFFF;
  color: #0B1530;
  font-size: 15px;
  text-decoration: none;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-about .jump-list__link:hover {
  border-color: var(--orange-500);
  transform: translateX(4px);
}

.page-about .jump-list__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--grid-500);
}

@media (max-width: 719px) {
  .page-about .about-cta__actions .btn {
    width: 100%;
  }
}
<<<END>>>