.page-about {
  --about-line: rgba(53, 242, 208, 0.2);
  --about-line-soft: rgba(155, 176, 196, 0.22);
  --about-paper-line: rgba(8, 13, 18, 0.14);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding-block: clamp(1.5rem, 4vw, 2.5rem) clamp(2.25rem, 6vw, 4rem);
}

.page-about .about-hero__inner {
  display: grid;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: end;
}

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

.page-about .about-hero__main::before {
  content: "";
  position: absolute;
  left: -6%;
  top: -18%;
  width: min(220px, 42vw);
  height: min(220px, 42vw);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(53, 242, 208, 0.22), transparent 68%);
  pointer-events: none;
  z-index: 0;
}

.page-about .about-hero__main > * {
  position: relative;
  z-index: 1;
}

.page-about .h-display {
  margin: 0.35rem 0 1.1rem;
  line-height: 0.94;
  letter-spacing: -0.02em;
  font-size: clamp(2.4rem, 9vw, 5.6rem);
}

.page-about .h-display b {
  color: var(--cyan);
  font-weight: inherit;
}

.page-about .lede {
  max-width: 34em;
}

.page-about .about-hero__aside {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 0.4rem 1rem;
  padding: 1rem 1.1rem;
  border-left: 1px solid var(--about-line);
  background: linear-gradient(100deg, rgba(12, 41, 66, 0.9), rgba(12, 41, 66, 0));
}

.page-about .about-hero__rule {
  grid-row: 1 / span 2;
  width: 2px;
  height: 100%;
  min-height: 44px;
  background: linear-gradient(180deg, var(--cyan), rgba(53, 242, 208, 0));
}

.page-about .about-hero__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--cream);
  text-transform: uppercase;
}

.page-about .about-hero__tag--alt {
  color: var(--gold);
}

.page-about .about-hero__note {
  grid-column: 2;
  margin: 0.4rem 0 0;
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 品牌起点 ---------- */
.page-about .about-origin {
  position: relative;
  overflow: hidden;
}

.page-about .about-origin::after {
  content: "";
  position: absolute;
  right: -12%;
  top: 10%;
  width: 46vw;
  height: 46vw;
  max-width: 520px;
  max-height: 520px;
  background: linear-gradient(135deg, rgba(167, 123, 255, 0.16), transparent 62%);
  clip-path: polygon(50% 0, 100% 38%, 82% 100%, 18% 100%, 0 38%);
  pointer-events: none;
}

.page-about .about-origin__inner {
  position: relative;
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.75rem);
}

.page-about .about-origin__text .h-section {
  margin: 0.4rem 0 1rem;
}

.page-about .about-origin__figure {
  margin: 0;
}

.page-about .about-origin__figure .media {
  border: 1px solid var(--about-line);
  box-shadow: 0 24px 50px -34px rgba(8, 13, 18, 0.95);
}

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

.page-about .media__caption {
  margin-top: 0.65rem;
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: var(--mist);
}

/* ---------- 理念 ---------- */
.page-about .about-values {
  background: var(--cream);
  color: var(--ink);
  clip-path: polygon(0 2.2%, 100% 0, 100% 100%, 0 97.8%);
  padding-block: clamp(3.25rem, 8vw, 5.5rem);
}

.page-about .about-values .eyebrow {
  color: #6c5741;
}

.page-about .about-values__title {
  margin: 0.4rem 0 clamp(1.5rem, 4vw, 2.5rem);
  color: var(--ink);
  font-size: clamp(1.75rem, 5.5vw, 3.1rem);
  line-height: 1.06;
}

.page-about .about-values__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-about .about-values__item {
  padding: 1.15rem 0 1.25rem;
  border-top: 1px solid var(--about-paper-line);
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  gap: 0.25rem 0.9rem;
}

.page-about .about-values__item:last-child {
  border-bottom: 1px solid var(--about-paper-line);
}

.page-about .about-values__num {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--gold);
  padding-top: 0.25rem;
}

.page-about .about-values__name {
  margin: 0;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-about .about-values__item p {
  margin: 0.3rem 0 0;
  font-size: 0.94rem;
  line-height: 1.72;
  color: #3d4a55;
  max-width: 34em;
}

/* ---------- 时间线 ---------- */
.page-about .tl {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  position: relative;
}

.page-about .tl::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), rgba(53, 242, 208, 0.06));
}

.page-about .tl__item {
  position: relative;
  padding: 0 0 1.9rem 2.9rem;
}

.page-about .tl__item:last-child {
  padding-bottom: 0;
}

.page-about .tl__item::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 12px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--deep);
  border: 1px solid var(--cyan);
  transform: translateX(-50%);
  transition: background var(--ease), box-shadow var(--ease);
}

.page-about .tl__item:hover::before,
.page-about .tl__item:focus-within::before {
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(53, 242, 208, 0.16);
}

.page-about .tl__year {
  display: inline-block;
  padding: 0.2rem 1.1rem 0.16rem 0.72rem;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  letter-spacing: 0.06em;
  color: var(--ink);
  background: var(--gold);
  clip-path: polygon(0 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
  transition: transform var(--ease);
}

.page-about .tl__item:hover .tl__year {
  transform: translateX(3px);
}

.page-about .tl__title {
  margin: 0.6rem 0 0.3rem;
  font-size: 1.08rem;
  letter-spacing: -0.01em;
  color: var(--cream);
}

.page-about .tl__text {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.72;
  color: var(--mist);
  max-width: 34em;
}

/* ---------- 团队 ---------- */
.page-about .about-team__head {
  display: grid;
  gap: 0.9rem;
  margin-bottom: clamp(1.5rem, 4vw, 2.25rem);
}

.page-about .about-team__head .h-section {
  margin: 0.35rem 0 0;
}

.page-about .about-team__intro {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--mist);
  max-width: 34em;
}

.page-about .about-team__body {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.page-about .team__grid {
  display: grid;
  gap: 0.9rem;
}

.page-about .team__card {
  position: relative;
  padding: 1.1rem 1.1rem 1.2rem;
  background: linear-gradient(150deg, var(--night), rgba(12, 41, 66, 0.42));
  border: 1px solid var(--about-line-soft);
  border-radius: 3px;
  transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
}

.page-about .team__card:hover,
.page-about .team__card:focus-visible,
.page-about .team__card:focus-within {
  transform: translateY(-3px);
  border-color: var(--about-line);
  box-shadow: 0 18px 34px -26px rgba(8, 13, 18, 0.95);
  outline: none;
}

.page-about .team__card:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-about .team__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--violet);
}

.page-about .team__role {
  margin: 0.35rem 0 0.4rem;
  font-size: 1.12rem;
  color: var(--cream);
  letter-spacing: -0.01em;
}

.page-about .team__desc {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-about .team__detail {
  max-height: 0;
  overflow: hidden;
  transition: max-height 220ms cubic-bezier(0.22, 0.61, 0.36, 1), margin var(--ease);
}

.page-about .team__card:hover .team__detail,
.page-about .team__card:focus-visible .team__detail,
.page-about .team__card:focus-within .team__detail {
  max-height: 9rem;
  margin-top: 0.6rem;
}

.page-about .team__detail p {
  margin: 0;
  padding-top: 0.6rem;
  border-top: 1px solid var(--about-line);
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--pale);
}

.page-about .about-team__figure {
  margin: 0;
}

.page-about .about-team__figure .media {
  border: 1px solid var(--about-line-soft);
}

/* ---------- 合作生态 ---------- */
.page-about .about-eco__inner {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.75rem);
  align-items: start;
}

.page-about .about-eco__text .h-section {
  margin: 0.4rem 0 1rem;
}

.page-about .net {
  list-style: none;
  margin: 0;
  padding: 2.4rem 0 0;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0.6rem;
  max-width: 340px;
}

.page-about .net__dot {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  border: 1px solid var(--about-line-soft);
  cursor: default;
  transition: transform var(--ease), box-shadow var(--ease);
}

.page-about .net__dot--court {
  background: rgba(53, 242, 208, 0.55);
}

.page-about .net__dot--youth {
  background: rgba(255, 177, 59, 0.7);
}

.page-about .net__dot--media {
  background: rgba(167, 123, 255, 0.62);
}

.page-about .net__dot--data {
  background: rgba(155, 176, 196, 0.6);
}

.page-about .net__dot:hover,
.page-about .net__dot:focus-visible {
  transform: scale(1.14);
  box-shadow: 0 0 0 5px rgba(53, 242, 208, 0.14);
  outline: none;
}

.page-about .net__dot:focus-visible {
  box-shadow: 0 0 0 2px var(--cyan), 0 0 0 5px rgba(53, 242, 208, 0.2);
}

.page-about .net__tip {
  position: absolute;
  bottom: calc(100% + 7px);
  left: 50%;
  transform: translateX(-50%);
  padding: 0.14rem 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.04em;
  white-space: nowrap;
  color: var(--deep);
  background: var(--cyan);
  border-radius: 2px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

.page-about .net__dot:hover .net__tip,
.page-about .net__dot:focus-visible .net__tip {
  opacity: 1;
}

.page-about .net__legend {
  margin: 1rem 0 0;
  font-size: 0.75rem;
  line-height: 1.9;
  color: var(--mist);
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.9rem;
}

.page-about .net__key {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 0.3rem;
  border-radius: 50%;
  vertical-align: middle;
}

.page-about .net__key--court { background: rgba(53, 242, 208, 0.75); }
.page-about .net__key--youth { background: rgba(255, 177, 59, 0.85); }
.page-about .net__key--media { background: rgba(167, 123, 255, 0.8); }
.page-about .net__key--data { background: rgba(155, 176, 196, 0.8); }

.page-about .about-eco__figure {
  margin: clamp(1.5rem, 4vw, 2.5rem) 0 0;
}

.page-about .about-eco__figure .media {
  border: 1px solid var(--about-line);
}

/* ---------- 覆盖与场景 ---------- */
.page-about .about-reach__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 1.4rem 0 clamp(1.6rem, 4vw, 2.4rem);
}

.page-about .about-reach__stats .stat {
  padding: 0.9rem 1rem 1rem;
  border-top: 2px solid var(--cyan);
  background: linear-gradient(180deg, rgba(12, 41, 66, 0.85), rgba(12, 41, 66, 0.15));
}

.page-about .about-reach__stats .stat__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 5vw, 2rem);
  line-height: 1.1;
  color: var(--cream);
}

.page-about .about-reach__stats .stat__label {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--mist);
}

.page-about .about-reach__scenes {
  display: grid;
  gap: 0.9rem;
}

.page-about .scene {
  padding: 1.1rem 1.1rem 1.2rem;
  border-left: 3px solid var(--violet);
  background: rgba(12, 41, 66, 0.5);
}

.page-about .scene__title {
  margin: 0 0 0.4rem;
  font-size: 1.02rem;
  color: var(--pale);
  letter-spacing: -0.01em;
}

.page-about .scene p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-about .about-reach__cta {
  margin-top: clamp(1.6rem, 4vw, 2.4rem);
  padding-top: 1.3rem;
  border-top: 1px solid var(--about-line);
  display: grid;
  gap: 1rem;
}

.page-about .about-reach__cta p {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.7;
  color: var(--cream);
  max-width: 30em;
}

.page-about .about-reach__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-about .team__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .team__card:nth-child(even) {
    margin-top: 1.5rem;
  }

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

  .page-about .about-reach__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-reach__cta {
    grid-template-columns: 1fr auto;
    align-items: center;
  }

  .page-about .about-values__item {
    grid-template-columns: 3.2rem 1fr;
    padding: 1.4rem 0 1.5rem;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1fr) 230px;
    align-items: end;
  }

  .page-about .about-origin__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: center;
    gap: 3rem;
  }

  .page-about .tl {
    padding-left: 1.5rem;
  }

  .page-about .tl__item {
    padding-left: 4.5rem;
    padding-bottom: 2.4rem;
  }

  .page-about .tl__item::before {
    left: 0;
  }

  .page-about .tl::before {
    left: 0;
    top: 14px;
  }

  .page-about .tl__item {
    display: grid;
    grid-template-columns: 1fr;
    max-width: 42rem;
  }

  .page-about .tl__year {
    font-size: 1rem;
    padding: 0.24rem 1.35rem 0.2rem 0.85rem;
  }

  .page-about .about-team__head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    align-items: end;
    gap: 2rem;
  }

  .page-about .about-team__body {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-about .about-eco__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
    gap: 3rem;
  }

  .page-about .net {
    max-width: 100%;
    padding-top: 2.6rem;
  }

  .page-about .about-values__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 3rem;
  }

  .page-about .about-values__item:nth-child(1),
  .page-about .about-values__item:nth-child(2) {
    border-top: 1px solid var(--about-paper-line);
  }

  .page-about .about-values__item:nth-last-child(-n+2) {
    border-bottom: 1px solid var(--about-paper-line);
  }
}

@media (min-width: 1180px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1fr) 260px;
  }

  .page-about .about-eco__inner {
    gap: 4.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .team__card,
  .page-about .team__detail,
  .page-about .net__dot,
  .page-about .net__tip,
  .page-about .tl__year,
  .page-about .tl__item::before {
    transition: none;
  }
}
<<<END>>>