.page-about {
  position: relative;
  color: var(--white);
}

.page-about .about-rail {
  display: none;
}

@media (min-width: 1280px) {
  .page-about .about-rail {
    display: block;
    position: fixed;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 4;
    pointer-events: none;
  }
  .page-about .about-rail span {
    writing-mode: vertical-rl;
    font-size: 11px;
    letter-spacing: .32em;
    color: var(--mist);
    border-right: 3px solid var(--lime);
    padding: 16px 10px 16px 0;
  }
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 26px 0 52px;
  border-bottom: 1px solid var(--line);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 44%;
  background: var(--ink-2);
  clip-path: polygon(0 40%, 100% 0, 100% 100%, 0 100%);
  z-index: 0;
  pointer-events: none;
}

@media (min-width: 900px) {
  .page-about .about-hero {
    padding: 44px 0 64px;
  }
  .page-about .about-hero::before {
    inset: -12% -14% -12% auto;
    width: 68%;
    height: 124%;
    clip-path: polygon(32% 0, 100% 0, 100% 100%, 0 100%);
  }
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 34px;
}

@media (min-width: 900px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 44px;
    align-items: end;
  }
}

.page-about .about-hero__copy .crumbs {
  margin-bottom: 18px;
}

.page-about .about-hero__title {
  margin: 16px 0 0;
  font-size: clamp(2.4rem, 8.4vw, 4.4rem);
  font-weight: 900;
  line-height: .96;
  letter-spacing: -.02em;
  color: var(--white);
}

.page-about .about-hero__title-sub {
  display: block;
  margin-top: 12px;
  font-size: clamp(1.05rem, 3.6vw, 1.55rem);
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0;
  color: var(--lime);
}

.page-about .about-hero__lead {
  margin: 22px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
  border-left: 3px solid var(--line);
  padding-left: 18px;
}

.page-about .about-hero__index {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .about-hero__index a {
  display: inline-block;
  padding: 9px 14px;
  border: 2px solid var(--line);
  background: var(--ink);
  color: var(--white);
  font-size: 13px;
  letter-spacing: .06em;
  text-decoration: none;
  transition: var(--ease);
}

.page-about .about-hero__index a:hover,
.page-about .about-hero__index a:focus-visible,
.page-about .about-hero__index a[aria-current="true"] {
  border-color: var(--lime);
  color: var(--lime);
  transform: translateY(-3px);
}

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

.page-about .about-hero__tag {
  position: absolute;
  left: -14px;
  top: 8px;
  z-index: 2;
  background: var(--lime);
  color: var(--ink);
  padding: 12px 6px;
  font-size: 11px;
  letter-spacing: .22em;
  font-weight: 700;
}

.page-about .about-hero__media-box {
  border: 3px solid var(--line);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

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

/* ---------- 时间轴 ---------- */

.page-about .about-timeline {
  padding: 48px 0 54px;
}

.page-about .about-timeline__lead {
  margin: 14px 0 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .about-timeline__track {
  list-style: none;
  position: relative;
  margin: 34px 0 0;
  padding: 0 0 0 22px;
  display: grid;
  gap: 26px;
}

.page-about .about-timeline__track::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: var(--line);
}

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

.page-about .about-timeline__node::before {
  content: "";
  position: absolute;
  left: -22px;
  top: 6px;
  width: 12px;
  height: 12px;
  background: var(--ink);
  border: 2px solid var(--lime);
  transform: rotate(45deg);
  transition: var(--ease);
}

.page-about .about-timeline__node:hover::before,
.page-about .about-timeline__node:focus-within::before {
  background: var(--lime);
}

.page-about .about-timeline__year {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(1.5rem, 5vw, 2.2rem);
  font-weight: 700;
  line-height: 1;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
}

.page-about .about-timeline__name {
  margin: 8px 0 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
}

.page-about .about-timeline__desc {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

@media (min-width: 880px) {
  .page-about .about-timeline__track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
    padding: 44px 0 0;
  }
  .page-about .about-timeline__track::before {
    left: 0;
    right: 0;
    top: 8px;
    bottom: auto;
    width: auto;
    height: 3px;
    background: linear-gradient(90deg, var(--lime) 0%, var(--line) 42%, var(--line) 100%);
  }
  .page-about .about-timeline__node::before {
    left: 0;
    top: 0;
    width: 15px;
    height: 15px;
  }
  .page-about .about-timeline__node {
    padding-right: 16px;
  }
  .page-about .about-timeline__name {
    margin-top: 14px;
  }
}

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

.page-about .about-timeline__media {
  border: 3px solid var(--line);
  overflow: hidden;
}

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

/* ---------- 六个板块 ---------- */

.page-about .about-modules {
  padding: 52px 0 56px;
  border-top: 1px solid var(--line);
}

.page-about .about-modules__lead {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .about-modules__list {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
  background: var(--line);
  border: 2px solid var(--line);
}

@media (min-width: 880px) {
  .page-about .about-modules__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-about .about-module {
  display: grid;
  grid-template-columns: 50px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 18px;
  background: var(--ink);
  transition: var(--ease);
}

.page-about .about-module:hover {
  background: var(--ink-2);
}

.page-about .about-module__num {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  background: var(--lime);
  color: var(--ink);
  font-family: var(--font-num);
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.page-about .about-module:nth-child(2) .about-module__num {
  background: var(--orange);
}
.page-about .about-module:nth-child(3) .about-module__num {
  background: var(--cyan);
}
.page-about .about-module:nth-child(4) .about-module__num {
  background: var(--lime);
}
.page-about .about-module:nth-child(5) .about-module__num {
  background: var(--orange);
}
.page-about .about-module:nth-child(6) .about-module__num {
  background: var(--cyan);
}

.page-about .about-module__name {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
}

.page-about .about-module__text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-about .about-module__link {
  display: inline-block;
  margin-top: 12px;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 216, 232, .45);
  transition: var(--ease);
}

.page-about .about-module__link:hover,
.page-about .about-module__link:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

/* ---------- 联赛覆盖 ---------- */

.page-about .about-leagues {
  padding: 52px 0 56px;
}

.page-about .about-leagues__grid {
  align-items: start;
}

.page-about .about-leagues__note {
  margin: 16px 0 0;
  color: var(--mist);
  font-size: 12px;
}

.page-about .about-leagues__body.prose p {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--white);
  max-width: 34em;
}

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

.page-about .about-leagues__bands {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
  background: var(--line);
  border-top: 2px solid var(--line);
  border-bottom: 2px solid var(--line);
}

.page-about .about-leagues__bands li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 18px;
  padding: 13px 14px;
  background: var(--ink);
  transition: var(--ease);
}

.page-about .about-leagues__bands li:hover {
  background: var(--ink-2);
  padding-left: 20px;
}

.page-about .about-leagues__region {
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
}

.page-about .about-leagues__region::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 12px;
  background: var(--lime);
  vertical-align: middle;
}

.page-about .about-leagues__desc {
  font-size: 13px;
  color: var(--mist);
}

/* ---------- 数字带 ---------- */

.page-about .about-figure {
  padding: 34px 0;
}

.page-about .about-figure,
.page-about .about-figure * {
  color: var(--ink);
}

.page-about .about-figure__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 20px;
}

.page-about .about-figure__num {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-about .about-figure__value {
  font-family: var(--font-num);
  font-size: clamp(2.8rem, 11vw, 5rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.page-about .about-figure__unit {
  font-size: clamp(1rem, 3.4vw, 1.4rem);
  font-weight: 700;
  color: var(--ink);
}

.page-about .about-figure__line {
  margin: 0;
  font-size: clamp(.95rem, 3vw, 1.15rem);
  font-weight: 500;
  line-height: 1.6;
  max-width: 30em;
  color: var(--ink);
}

/* ---------- 每周在做什么 ---------- */

.page-about .about-work {
  padding: 52px 0 56px;
}

.page-about .about-work__figure {
  margin: 28px 0 0;
}

.page-about .about-work__media {
  border: 3px solid var(--line);
  overflow: hidden;
}

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

.page-about .about-work__cols {
  display: grid;
  gap: 28px;
  margin-top: 30px;
}

@media (min-width: 880px) {
  .page-about .about-work__cols {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 40px;
    align-items: start;
  }
}

.page-about .about-work__prose.prose p {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--white);
  max-width: 34em;
}

.page-about .about-work__prose.prose p:last-child {
  margin-bottom: 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-about .about-work__team {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  background: var(--line);
  border: 2px solid var(--line);
}

.page-about .about-work__team li {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 4px 14px;
  padding: 16px;
  background: var(--ink-2);
  transition: var(--ease);
}

.page-about .about-work__team li:hover {
  background: var(--ink);
}

.page-about .about-work__count {
  grid-row: span 2;
  font-family: var(--font-num);
  font-size: 2.1rem;
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-about .about-work__role {
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
}

.page-about .about-work__desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 协作生态 ---------- */

.page-about .about-partners {
  padding: 52px 0 56px;
  border-top: 1px solid var(--line);
}

.page-about .about-partners__lead {
  margin: 14px 0 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .about-partners__list {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

@media (min-width: 820px) {
  .page-about .about-partners__list {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 24px;
  }
}

.page-about .about-partner {
  position: relative;
  padding: 24px 22px;
  border: 3px solid var(--line);
  background: var(--ink-2);
  transition: var(--ease);
}

.page-about .about-partner:hover,
.page-about .about-partner:focus-within {
  transform: translateY(-4px);
  border-color: var(--lime);
  box-shadow: var(--shadow-hard);
}

.page-about .about-partner__head {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

.page-about .about-partner__num {
  font-family: var(--font-num);
  font-size: clamp(2.6rem, 9vw, 3.8rem);
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-about .about-partner:nth-child(2) .about-partner__num {
  color: var(--lime);
}

.page-about .about-partner__k {
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
}

.page-about .about-partner__desc {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
  max-width: 30em;
}

.page-about .about-partner__meta {
  display: inline-block;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan);
  opacity: .6;
  transform: translateY(3px);
  transition: var(--ease);
}

.page-about .about-partner:hover .about-partner__meta,
.page-about .about-partner:focus-within .about-partner__meta {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 结尾行动区 ---------- */

.page-about .about-cta {
  padding: 44px 0 46px;
}

.page-about .about-cta__inner {
  display: grid;
  gap: 26px;
}

@media (min-width: 860px) {
  .page-about .about-cta__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
    gap: 40px;
  }
}

.page-about .about-cta__title {
  margin: 0;
  font-size: clamp(1.6rem, 5.4vw, 2.4rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-about .about-cta__text {
  margin: 14px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

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

.page-about .about-cta__foot {
  margin: 32px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .about-cta__foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 216, 232, .45);
}

.page-about .about-cta__foot a:hover,
.page-about .about-cta__foot a:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}
<<<END>>>