.page-about {
  --about-col: 44px;
  --about-gap: 14px;
  --about-dim: #B9C5D8;
}

.page-about h2 {
  font-family: var(--f-display);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.18;
  letter-spacing: -0.015em;
  margin: 14px 0 14px;
  color: var(--c-ink);
}

.page-about p {
  margin: 0 0 12px;
  font-size: 16px;
  line-height: 1.72;
  color: var(--about-dim);
}

.page-about .inline-link {
  color: var(--c-brand);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 222, 123, .45);
}

.page-about .inline-link:hover {
  border-bottom-color: var(--c-brand);
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  padding-top: clamp(22px, 4vw, 52px);
  padding-bottom: clamp(18px, 3vw, 34px);
}

.page-about .about-hero__title {
  font-family: var(--f-display);
  font-weight: 900;
  font-size: clamp(32px, 7vw, 82px);
  line-height: 1.04;
  letter-spacing: -0.028em;
  margin: 16px 0 0;
  max-width: 17ch;
  color: var(--c-ink);
}

.page-about .about-hero__lead {
  margin-top: 22px;
  max-width: 60ch;
  font-size: clamp(16px, 1.4vw, 19px);
  line-height: 1.72;
  color: var(--about-dim);
}

.page-about .about-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.page-about .about-hero__stats .plaque {
  flex: 1 1 138px;
  min-width: 132px;
}

/* ---------- 横幅 ---------- */

.page-about .about-banner-wrap {
  padding-top: clamp(6px, 1.5vw, 16px);
  padding-bottom: clamp(20px, 3vw, 40px);
}

.page-about .about-banner {
  width: 100%;
  margin: 0;
}

/* ---------- 赛季轨道 ---------- */

.page-about .track {
  padding-top: clamp(28px, 5vw, 64px);
}

.page-about .track__title {
  max-width: 22ch;
}

.page-about .track__lead {
  max-width: 58ch;
  margin-bottom: 8px;
}

.page-about .arc {
  display: block;
  width: 100%;
  height: auto;
  max-width: 760px;
  margin: 22px 0 4px;
}

.page-about .arc__path {
  fill: none;
  stroke-width: 3;
  stroke-linecap: round;
}

.page-about .arc__dot {
  fill: var(--c-bg);
  stroke: var(--c-brand);
  stroke-width: 2.5;
}

.page-about .arc__dot--now {
  fill: var(--c-hi);
  stroke: var(--c-hi);
}

.page-about .arc__lab {
  fill: var(--c-muted);
  font-family: var(--f-data);
  font-size: 13px;
  letter-spacing: 0.06em;
}

.page-about .tl {
  position: relative;
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.page-about .tl::before {
  content: "";
  position: absolute;
  left: var(--about-col);
  top: 10px;
  bottom: 10px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--c-muted) 0%, var(--c-brand) 76%, var(--c-hi) 100%);
  opacity: .5;
}

.page-about .tl__node {
  position: relative;
  display: grid;
  grid-template-columns: var(--about-col) minmax(0, 1fr);
  gap: var(--about-gap);
  padding-bottom: 22px;
}

.page-about .tl__node::after {
  content: "";
  position: absolute;
  left: calc(var(--about-col) - 4px);
  top: 14px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--c-bg);
  border: 2px solid var(--c-brand);
}

.page-about .tl__node--now::after {
  background: var(--c-hi);
  border-color: var(--c-hi);
}

.page-about .tl__no {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 3px;
  text-align: right;
  padding-top: 2px;
}

.page-about .tl__num {
  font-family: var(--f-data);
  font-variant-numeric: tabular-nums;
  font-size: clamp(24px, 6vw, 38px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--c-ink);
}

.page-about .tl__node--now .tl__num {
  color: var(--c-hi);
}

.page-about .tl__unit {
  font-family: var(--f-data);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--c-muted);
}

.page-about .tl__item .disclosure__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
  padding: 8px 0 10px;
  cursor: pointer;
}

.page-about .tl__title {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(18px, 2.1vw, 25px);
  line-height: 1.3;
  color: var(--c-ink);
}

.page-about .tl__tag {
  font-family: var(--f-data);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-muted);
}

.page-about .tl__node--now .tl__tag {
  color: var(--c-signal);
}

.page-about .tl__text {
  max-width: 58ch;
  padding-bottom: 4px;
}

.page-about .tl__text p {
  font-size: 15.5px;
  line-height: 1.75;
}

/* ---------- 团队 ---------- */

.page-about .team__title {
  max-width: 20ch;
}

.page-about .team__intro p {
  max-width: 56ch;
}

.page-about .team__media {
  margin: 22px 0 26px;
}

.page-about .team__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.page-about .team__item {
  padding: 16px 14px 16px 0;
  border-top: 1px solid var(--c-line);
}

.page-about .team__item:nth-child(odd) {
  padding-right: 18px;
}

.page-about .team__num {
  display: block;
  font-family: var(--f-data);
  font-variant-numeric: tabular-nums;
  font-size: clamp(28px, 4.4vw, 42px);
  font-weight: 700;
  line-height: 1;
  color: var(--c-brand);
}

.page-about .team__k {
  display: block;
  margin-top: 10px;
  font-size: 15px;
  font-weight: 700;
  color: var(--c-ink);
}

.page-about .team__d {
  display: block;
  margin-top: 4px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--c-muted);
}

/* ---------- 更新节奏 ---------- */

.page-about .cadence__title {
  max-width: 18ch;
}

.page-about .cadence__lead {
  max-width: 56ch;
}

.page-about .cadence__list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-about .cadence__item {
  padding-top: 16px;
  border-top: 2px solid var(--c-line);
}

.page-about .cadence__item:last-child {
  border-top-color: var(--c-signal);
}

.page-about .cadence__k {
  display: block;
  font-family: var(--f-data);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--c-muted);
  margin-bottom: 10px;
}

.page-about .cadence__val {
  display: block;
  line-height: 1;
}

.page-about .cadence__num {
  font-family: var(--f-data);
  font-variant-numeric: tabular-nums;
  font-size: clamp(30px, 4.2vw, 46px);
  font-weight: 700;
  color: var(--c-ink);
  letter-spacing: -0.03em;
}

.page-about .cadence__unit {
  font-family: var(--f-data);
  font-size: 14px;
  color: var(--c-brand);
  margin-left: 5px;
}

.page-about .cadence__text {
  margin-top: 12px;
  font-size: 14.5px;
  line-height: 1.68;
}

/* ---------- 年报 ---------- */

.page-about .report__title {
  max-width: 16ch;
}

.page-about .report__head p {
  max-width: 56ch;
}

.page-about .report__toc {
  margin-top: 6px;
}

.page-about .report__toc .disclosure__summary {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 16px;
  padding: 12px 0;
  cursor: pointer;
  color: var(--c-ink);
}

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

/* ---------- 合作伙伴 ---------- */

.page-about .partners__title {
  max-width: 22ch;
}

.page-about .partners__lead {
  max-width: 58ch;
}

.page-about .partners__grid {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.page-about .pitem {
  padding-left: 16px;
  border-left: 2px solid var(--c-line);
}

.page-about .pitem:last-child {
  border-left-color: var(--c-brand);
}

.page-about .pitem__k {
  display: block;
  font-family: var(--f-data);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--c-muted);
}

.page-about .pitem__v {
  display: block;
  font-family: var(--f-data);
  font-variant-numeric: tabular-nums;
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 700;
  line-height: 1.15;
  color: var(--c-ink);
  margin-top: 6px;
}

.page-about .pitem__d {
  display: block;
  margin-top: 6px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--c-muted);
}

/* ---------- 收束 ---------- */

.page-about .closing {
  margin-top: clamp(40px, 7vw, 88px);
  background:
    radial-gradient(130% 150% at 10% 0%, rgba(0, 222, 123, .18), transparent 62%),
    var(--c-deep);
  padding: clamp(44px, 7vw, 92px) 0;
}

.page-about .closing__title {
  font-family: var(--f-display);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.06;
  letter-spacing: -0.025em;
  margin: 0 0 16px;
  color: var(--c-ink);
  max-width: 16ch;
}

.page-about .closing__text {
  max-width: 56ch;
  color: #CFE6DA;
  font-size: 16.5px;
  line-height: 1.72;
}

.page-about .closing__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-about .team__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .team__item {
    padding-right: 20px;
  }

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

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

@media (min-width: 900px) {
  .page-about {
    --about-col: 88px;
    --about-gap: 32px;
  }

  .page-about .tl__node {
    padding-bottom: 28px;
  }

  .page-about .tl__node::after {
    top: 18px;
  }

  .page-about .team {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 34px clamp(24px, 4vw, 60px);
    align-items: start;
  }

  .page-about .team__intro {
    grid-column: 1;
    grid-row: 1;
  }

  .page-about .team__media {
    grid-column: 2;
    grid-row: 1;
    margin: 6px 0 0;
  }

  .page-about .team__list {
    grid-column: 1 / -1;
    grid-row: 2;
    margin-top: 4px;
  }

  .page-about .report {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 32px clamp(24px, 4vw, 56px);
    align-items: start;
  }

  .page-about .report__head {
    grid-column: 1;
    grid-row: 1;
  }

  .page-about .report__toc {
    grid-column: 1;
    grid-row: 2;
    margin-top: 0;
  }

  .page-about .report__media {
    grid-column: 2;
    grid-row: 1 / span 2;
    margin: 0;
  }
}
<<<END>>>