.page-about {
  --about-paper: #EEF2F7;
  --about-ink: #101828;
  --about-ink-soft: #46536B;
  --about-green-ink: #0B7A47;
  --about-body: #C6CEE0;
  --about-body-soft: #AEB8CC;

  background: var(--ink-900);
  color: var(--white);
  overflow-x: hidden;
}

/* ---------- 通用局部元素 ---------- */
.page-about .about-h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.6rem, 4.6vw, 2.55rem);
  line-height: 1.16;
  letter-spacing: -0.025em;
  color: var(--white);
}

.page-about .about-h2--dark {
  color: var(--about-ink);
}

.page-about .about-eyebrow-dark {
  display: inline-block;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--about-green-ink);
}

.page-about .about-body p {
  margin: 16px 0 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--about-body);
}

.page-about .about-body p:first-child {
  margin-top: 20px;
}

.page-about .link {
  color: var(--green);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .media {
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: linear-gradient(140deg, rgba(43, 229, 140, 0.16), rgba(255, 90, 43, 0.14));
}

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

/* ---------- 面包屑 ---------- */
.page-about .breadcrumb {
  font-size: 0.8rem;
  color: var(--muted);
}

.page-about .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.25s var(--ease);
}

.page-about .breadcrumb a:hover,
.page-about .breadcrumb a:focus-visible {
  color: var(--green);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding-top: calc(var(--header-h) + 40px);
  padding-bottom: 8px;
  background:
    radial-gradient(120% 78% at 84% 4%, rgba(43, 229, 140, 0.17), transparent 58%),
    radial-gradient(90% 66% at 4% 86%, rgba(255, 90, 43, 0.15), transparent 62%),
    var(--ink-900);
}

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

.page-about .about-hero .eyebrow {
  margin: 24px 0 0;
}

.page-about .about-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.1rem, 8.4vw, 4.4rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
}

.page-about .about-hero__line {
  display: block;
}

.page-about .about-hero__accent {
  color: var(--green);
}

.page-about .about-hero__sub {
  display: block;
  margin-top: 0.45em;
  font-family: var(--font-body);
  font-size: clamp(0.95rem, 3vw, 1.4rem);
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--muted);
}

.page-about .about-hero__lede {
  max-width: 38em;
  margin: 24px 0 0;
  font-size: clamp(0.98rem, 2.4vw, 1.08rem);
  line-height: 1.85;
  color: var(--about-body);
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 20px;
  margin-top: 34px;
}

.page-about .about-stat {
  border-left: 2px solid var(--green);
  padding-left: 14px;
}

.page-about .about-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.45rem, 5.2vw, 2.1rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--white);
}

.page-about .about-stat__label {
  display: block;
  margin-top: 5px;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-about .about-hero__media {
  margin: 40px 0 0;
}

/* ---------- 平台定位 ---------- */
.page-about .about-what {
  padding-top: 72px;
}

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

.page-about .about-rail {
  align-self: start;
  padding: 24px 22px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(158deg, rgba(22, 32, 58, 0.94), rgba(10, 16, 36, 0.55));
}

.page-about .about-rail__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--green);
}

.page-about .about-rail__text {
  margin: 12px 0 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--about-body-soft);
}

.page-about .about-rail__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-rail__list li {
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line-strong);
  font-size: 0.78rem;
  color: var(--about-body);
}

/* ---------- 覆盖范围 ---------- */
.page-about .about-coverage {
  background: var(--about-paper);
  color: var(--about-ink);
}

.page-about .about-coverage__lede {
  max-width: 44em;
  margin: 18px 0 0;
  font-size: 1.02rem;
  line-height: 1.85;
  color: var(--about-ink-soft);
}

.page-about .about-coverage__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 34px;
}

.page-about .about-coverage__card {
  padding: 26px 24px;
  border-radius: var(--radius-lg);
  background: #FFFFFF;
  border: 1px solid rgba(16, 24, 40, 0.08);
  box-shadow: 0 20px 44px -34px rgba(10, 16, 36, 0.55);
}

.page-about .about-coverage__fig {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(2.1rem, 7vw, 3.2rem);
  font-weight: 700;
  line-height: 1;
  color: var(--about-ink);
}

.page-about .about-coverage__cap {
  margin: 12px 0 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--about-ink-soft);
}

.page-about .about-ticks {
  height: 12px;
  margin-top: 18px;
  border-radius: var(--radius-pill);
  background: repeating-linear-gradient(
    90deg,
    var(--green) 0,
    var(--green) calc(6.25% - 7px),
    rgba(43, 229, 140, 0.18) calc(6.25% - 7px),
    rgba(43, 229, 140, 0.18) 6.25%
  );
}

.page-about .about-coverage__media {
  margin: 30px 0 0;
}

/* ---------- 场馆条目 ---------- */
.page-about .about-detail__lead {
  max-width: 42em;
  margin: 18px 0 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--about-body);
}

.page-about .about-detail__grid {
  margin-top: 34px;
}

.page-about .about-detail__card {
  padding: 24px 22px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(22, 32, 58, 0.95), rgba(10, 16, 36, 0.72));
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.page-about .about-detail__card:hover,
.page-about .about-detail__card:focus-within {
  transform: translateY(-4px);
  border-color: rgba(43, 229, 140, 0.42);
  box-shadow: 0 26px 50px -36px rgba(43, 229, 140, 0.75);
}

.page-about .about-detail__idx {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-about .about-detail__title {
  margin: 12px 0 0;
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--white);
}

.page-about .about-detail__text {
  margin: 10px 0 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--about-body-soft);
}

/* ---------- 发展历程 ---------- */
.page-about .about-timeline {
  background: var(--about-paper);
  color: var(--about-ink);
}

.page-about .about-timeline__list {
  position: relative;
  margin: 36px 0 0;
  padding: 0 0 0 30px;
  list-style: none;
}

.page-about .about-timeline__list::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--green), var(--orange));
}

.page-about .about-timeline__item {
  position: relative;
  padding-bottom: 30px;
}

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

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 7px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--about-paper);
  border: 3px solid rgba(43, 229, 140, 0.5);
  box-sizing: border-box;
  transition: border-color 0.35s var(--ease), background 0.35s var(--ease);
}

.page-about .about-timeline__item.is-in::before {
  border-color: var(--about-green-ink);
  background: var(--green);
}

.page-about .about-timeline__year {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 1.06rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--about-green-ink);
}

.page-about .about-timeline__body h3 {
  margin: 8px 0 0;
  font-size: 1.04rem;
  font-weight: 700;
  color: var(--about-ink);
}

.page-about .about-timeline__body p {
  margin: 8px 0 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--about-ink-soft);
}

/* ---------- 团队 ---------- */
.page-about .about-team__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}

.page-about .about-team__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-team__stats li {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line-strong);
  background: rgba(22, 32, 58, 0.62);
  font-size: 0.86rem;
  color: var(--about-body);
}

.page-about .about-team__stats .mono {
  font-weight: 700;
  color: var(--green);
}

/* ---------- 选择理由 ---------- */
.page-about .about-reasons {
  background: var(--about-paper);
  color: var(--about-ink);
}

.page-about .about-reasons__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 34px;
}

.page-about .about-reasons__card {
  position: relative;
  padding: 28px 24px 26px;
  border-radius: var(--radius-lg);
  background: #FFFFFF;
  border: 1px solid rgba(16, 24, 40, 0.08);
  box-shadow: 0 20px 44px -36px rgba(10, 16, 36, 0.55);
  overflow: hidden;
}

.page-about .about-reasons__card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: linear-gradient(90deg, var(--green), var(--green-soft));
}

.page-about .about-reasons__card:nth-child(2)::before {
  background: linear-gradient(90deg, var(--orange), var(--orange-soft));
}

.page-about .about-reasons__card:nth-child(3)::before {
  background: linear-gradient(90deg, var(--yellow), var(--green-soft));
}

.page-about .about-reasons__card h3 {
  margin: 0;
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--about-ink);
}

.page-about .about-reasons__card p {
  margin: 12px 0 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--about-ink-soft);
}

/* ---------- 下一步 ---------- */
.page-about .about-cta {
  padding-top: 8px;
  padding-bottom: 84px;
}

.page-about .about-cta__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  padding: 30px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-strong);
  background:
    linear-gradient(135deg, rgba(43, 229, 140, 0.16), rgba(255, 90, 43, 0.18)),
    var(--panel);
}

.page-about .about-cta__text {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.1rem, 3.2vw, 1.5rem);
  line-height: 1.42;
  color: var(--white);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-about .about-coverage__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-reasons__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px 28px;
  }

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

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

  .page-about .about-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
    padding: 34px 32px;
  }
}

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

  .page-about .about-split {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 56px;
  }

  .page-about .about-rail {
    position: sticky;
    top: calc(var(--header-h) + 20px);
  }

  .page-about .about-team__inner {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: center;
    gap: 54px;
  }

  .page-about .about-timeline__list {
    padding-left: 36px;
  }

  .page-about .about-timeline__item::before {
    left: -36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-detail__card,
  .page-about .about-timeline__item::before {
    transition: none;
  }

  .page-about .about-detail__card:hover,
  .page-about .about-detail__card:focus-within {
    transform: none;
  }
}
<<<END>>>