.page-about {
  --about-rule: rgba(255, 194, 75, 0.5);
  --about-hair: rgba(148, 163, 198, 0.2);
  position: relative;
  padding-bottom: 72px;
}

/* ---------- 面包屑与首屏 ---------- */
.page-about .breadcrumb {
  margin: 20px 0 26px;
}

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 0 0 56px;
}

.page-about .about-hero__aura {
  position: absolute;
  top: -240px;
  right: -200px;
  width: 560px;
  height: 560px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 35%, rgba(255, 61, 154, 0.4), transparent 62%),
    radial-gradient(circle at 70% 68%, rgba(34, 230, 210, 0.34), transparent 64%);
  filter: blur(18px);
  pointer-events: none;
}

.page-about .about-hero__grid {
  position: relative;
  display: grid;
  gap: 34px;
  align-items: center;
}

.page-about .about-hero__title {
  margin: 14px 0 0;
  font-size: clamp(34px, 7.4vw, 62px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 800;
}

.page-about .about-hero__lead {
  margin: 22px 0 0;
  max-width: 36em;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(233, 239, 250, 0.86);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.page-about .about-hero__figure {
  position: relative;
  margin: 0;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
  box-shadow: var(--hard-lg);
  transform: rotate(-1.2deg);
}

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

/* ---------- 通用区块节奏 ---------- */
.page-about .about-divider {
  height: 3px;
  margin: 0;
  border: 0;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--gold), rgba(255, 194, 75, 0));
  opacity: 0.55;
}

.page-about .about-block {
  padding: 52px 0;
}

.page-about .about-h2 {
  margin: 0 0 18px;
  font-size: clamp(25px, 4.4vw, 40px);
  line-height: 1.22;
  letter-spacing: -0.015em;
  font-weight: 800;
}

.page-about .about-lead {
  margin: 0 0 8px;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(233, 239, 250, 0.8);
}

.page-about .about-split__body p {
  margin: 0 0 16px;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(233, 239, 250, 0.82);
}

/* ---------- 左窄右宽的错位分栏 ---------- */
.page-about .about-split {
  display: grid;
  gap: 26px;
}

.page-about .about-split__rail {
  display: flex;
  align-items: center;
  gap: 14px;
}

.page-about .about-split__index {
  display: inline-block;
  padding: 4px 18px;
  font-size: 34px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--ink);
  border-radius: 8px;
  background: linear-gradient(135deg, var(--cyan), var(--magenta));
  transform: skewX(-8deg);
}

.page-about .about-split__tag {
  margin: 0;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--muted);
}

/* ---------- 三个坚持 ---------- */
.page-about .about-principles__layout {
  display: grid;
  gap: 28px;
  margin-bottom: 34px;
}

.page-about .about-principles__figure {
  margin: 0;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
  box-shadow: var(--hard);
}

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

.page-about .about-principles__grid {
  display: grid;
  gap: 20px;
}

.page-about .principle {
  position: relative;
  padding: 28px 22px 22px;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--hard);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.page-about .principle::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  border-radius: var(--radius) var(--radius) 0 0;
  background: linear-gradient(90deg, var(--cyan), var(--magenta), var(--gold));
}

.page-about .principle:hover,
.page-about .principle:focus-within {
  transform: translateY(-6px);
  box-shadow: var(--hard-lg);
}

.page-about .principle__mark {
  display: inline-block;
  padding: 3px 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
  border: 1px solid var(--about-rule);
  border-radius: 999px;
}

.page-about .principle__title {
  margin: 14px 0 10px;
  font-size: 19px;
  line-height: 1.45;
  font-weight: 700;
}

.page-about .principle__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(233, 239, 250, 0.82);
}

.page-about .principle__more {
  max-height: 0;
  margin: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--cyan);
  transition: max-height 0.3s var(--ease), opacity 0.3s var(--ease), margin-top 0.3s var(--ease);
}

.page-about .principle:hover .principle__more,
.page-about .principle:focus-within .principle__more {
  max-height: 160px;
  margin-top: 14px;
  opacity: 1;
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline__track {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 32px 0 22px;
  padding-left: 28px;
}

.page-about .about-timeline__track::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 4px;
  bottom: 4px;
  width: 3px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--magenta), var(--cyan), var(--gold));
  opacity: 0.85;
}

.page-about .about-timeline__track .segmented__btn.about-timeline__node {
  position: relative;
  flex: 1 1 0;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: color 0.2s var(--ease);
}

.page-about .about-timeline__dot {
  position: absolute;
  left: -28px;
  top: 50%;
  width: 15px;
  height: 15px;
  margin-top: -7.5px;
  border-radius: 50%;
  background: var(--ink);
  border: 3px solid var(--muted);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-about .about-timeline__track .about-timeline__node[aria-selected="true"] {
  color: var(--white);
}

.page-about .about-timeline__node[aria-selected="true"] .about-timeline__dot {
  border-color: var(--cyan);
  background: var(--cyan);
  box-shadow: 0 0 0 6px rgba(34, 230, 210, 0.16);
}

.page-about .about-timeline__panel {
  padding: 24px 20px;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-2);
  box-shadow: var(--hard);
}

.page-about .about-timeline__panel h3 {
  margin: 0 0 10px;
  font-size: 19px;
  line-height: 1.45;
}

.page-about .about-timeline__panel p {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(233, 239, 250, 0.82);
}

/* ---------- 团队 ---------- */
.page-about .about-team__grid {
  display: grid;
  gap: 30px;
}

.page-about .about-team__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin: 22px 0 20px;
}

.page-about .about-team__tabs .segmented__btn {
  padding: 8px 16px;
  border: 2px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: color 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-about .about-team__tabs .segmented__btn[aria-selected="true"] {
  border-color: var(--cyan);
  background: var(--cyan);
  color: var(--ink);
}

.page-about .about-team__panel {
  padding: 24px 20px;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-2);
  box-shadow: var(--hard);
}

.page-about .about-team__panel h3 {
  margin: 0 0 12px;
  font-size: 19px;
  line-height: 1.5;
}

.page-about .about-team__panel p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(233, 239, 250, 0.82);
}

.page-about .about-team__panel ul {
  display: grid;
  gap: 10px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-team__panel li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(233, 239, 250, 0.76);
}

.page-about .about-team__panel li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--magenta);
  transform: rotate(45deg);
}

.page-about .about-team__figure {
  margin: 0;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
  box-shadow: var(--hard-lg);
}

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

/* ---------- 数据指标 ---------- */
.page-about .about-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.page-about .about-metric {
  padding: 18px 15px;
  border: 2px solid var(--about-hair);
  border-radius: var(--radius-sm);
  background: var(--panel);
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-about .about-metric:hover {
  transform: translateY(-4px);
  border-color: var(--line);
}

.page-about .about-metric__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(23px, 5vw, 32px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

.page-about .about-metric__num em {
  margin-left: 5px;
  font-style: normal;
  font-size: 0.48em;
  color: var(--muted);
  letter-spacing: 0;
}

.page-about .about-metric:nth-child(2) .about-metric__num {
  color: var(--magenta);
}

.page-about .about-metric:nth-child(3) .about-metric__num {
  color: var(--gold);
}

.page-about .about-metric__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 合作 ---------- */
.page-about .about-partners {
  display: grid;
  gap: 16px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-partners__item {
  display: flex;
  gap: 16px;
  padding: 20px 18px;
  border: 2px solid var(--about-hair);
  border-radius: var(--radius);
  background: linear-gradient(150deg, rgba(34, 230, 210, 0.07), rgba(22, 34, 74, 0.9));
}

.page-about .about-partners__idx {
  flex: none;
  font-size: 22px;
  font-weight: 600;
  color: var(--gold);
  line-height: 1.2;
}

.page-about .about-partners__item h3 {
  margin: 0 0 8px;
  font-size: 17px;
  line-height: 1.5;
}

.page-about .about-partners__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(233, 239, 250, 0.78);
}

.page-about .about-partners__note {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .about-partners__note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 230, 210, 0.4);
}

.page-about .about-partners__note a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 收尾 ---------- */
.page-about .about-cta {
  padding: 8px 0 24px;
}

.page-about .about-cta__inner {
  position: relative;
  overflow: hidden;
  padding: 38px 22px;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 10% 0%, rgba(34, 230, 210, 0.22), transparent 56%),
    radial-gradient(circle at 92% 100%, rgba(255, 61, 154, 0.24), transparent 56%),
    var(--ink-2);
  box-shadow: var(--hard-lg);
}

.page-about .about-cta__title {
  margin: 0;
  font-size: clamp(24px, 4.6vw, 36px);
  line-height: 1.25;
  letter-spacing: -0.015em;
}

.page-about .about-cta__text {
  margin: 14px 0 0;
  max-width: 38em;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(233, 239, 250, 0.82);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 13px;
  margin-top: 26px;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 700px) {
  .page-about .about-principles__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-partners {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-partners__item {
    flex-direction: column;
    gap: 10px;
  }
}

@media (min-width: 900px) {
  .page-about {
    padding-bottom: 96px;
  }

  .page-about .about-block {
    padding: 76px 0;
  }

  .page-about .about-hero {
    padding-bottom: 76px;
  }

  .page-about .about-split {
    grid-template-columns: 210px minmax(0, 1fr);
    gap: 58px;
    align-items: start;
  }

  .page-about .about-split__rail {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .page-about .about-split--offset .about-split__rail {
    margin-top: 62px;
  }

  .page-about .about-principles__layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 52px;
    align-items: center;
    margin-bottom: 46px;
  }

  .page-about .about-principles__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
    align-items: start;
  }

  .page-about .about-principles__grid > .principle:nth-child(2) {
    margin-top: 44px;
  }

  .page-about .about-principles__grid > .principle:nth-child(3) {
    margin-top: 88px;
  }

  .page-about .about-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-about .about-cta__inner {
    padding: 54px 52px;
  }
}

@media (min-width: 1000px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
    gap: 58px;
  }

  .page-about .about-hero__figure {
    transform: rotate(-1.6deg);
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 46px;
    align-items: start;
  }

  .page-about .about-team__figure {
    position: sticky;
    top: 24px;
  }
}

@media (min-width: 820px) {
  .page-about .about-timeline__track {
    flex-direction: row;
    gap: 0;
    padding-left: 0;
    margin: 36px 0 22px;
  }

  .page-about .about-timeline__track::before {
    left: 0;
    right: 0;
    top: 7px;
    bottom: auto;
    width: auto;
    height: 3px;
    background: linear-gradient(90deg, var(--magenta), var(--cyan), var(--gold));
  }

  .page-about .about-timeline__track .segmented__btn.about-timeline__node {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding: 0 14px 0 0;
  }

  .page-about .about-timeline__dot {
    position: static;
    margin-top: 0;
    width: 17px;
    height: 17px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .principle,
  .page-about .about-metric,
  .page-about .principle__more,
  .page-about .about-timeline__dot,
  .page-about .about-team__tabs .segmented__btn {
    transition: none;
  }

  .page-about .principle:hover,
  .page-about .principle:focus-within,
  .page-about .about-metric:hover {
    transform: none;
  }
}
<<<PAGE_CSS_END>>>