.page-about {
  --about-rail: 64px;
  --about-gap: 28px;
  --about-panel: var(--ink-2);
  --about-hair: var(--line);
}

/* 首屏 */
.page-about .about-hero {
  padding: clamp(18px, 3.5vw, 34px) 0 clamp(26px, 4.5vw, 52px);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 4vw, 36px);
  margin-top: clamp(18px, 3vw, 30px);
}

.page-about .about-kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-about .about-hero__lead h1 {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(28px, 6vw, 50px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-about .about-hero__intro {
  margin: 0 0 22px;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--silver);
}

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

.page-about .about-hero__figure {
  margin: 0;
  border: 1px solid var(--about-hair);
  background: var(--panel);
  line-height: 0;
}

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

.page-about .about-figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  background: var(--about-hair);
  border: 1px solid var(--about-hair);
}

.page-about .about-figures__item {
  background: var(--ink);
  padding: 12px 14px;
}

.page-about .about-figures__num {
  display: block;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 34px;
  line-height: 0.9;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
}

.page-about .about-figures__label {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

/* 章节骨架：左侧编号轴贯穿 */
.page-about .about-section {
  border-top: 1px solid var(--about-hair);
}

.page-about .about-section--alt {
  background: linear-gradient(180deg, var(--ink-2) 0%, var(--ink) 100%);
}

.page-about .about-section__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  column-gap: var(--about-gap);
}

.page-about .about-section__rail {
  border-left: 1px solid var(--about-hair);
  padding: 16px 0 0 12px;
}

.page-about .about-section__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-about .about-section__body {
  padding: clamp(26px, 4.5vw, 50px) 0;
}

.page-about .about-section__body > * + * {
  margin-top: 16px;
}

.page-about .about-section__body h2 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(21px, 3.2vw, 30px);
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-about .about-section__body p {
  margin: 0;
  max-width: 38em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--silver);
}

.page-about .about-lead {
  font-size: 17px;
  color: var(--mint);
}

.page-about .about-note {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* 数据来源网络图 */
.page-about .about-net {
  margin: 0;
  padding: 14px;
  border: 1px solid var(--about-hair);
  background: var(--panel);
  overflow-x: auto;
}

.page-about .about-net__svg {
  display: block;
  width: 100%;
  max-width: 620px;
  height: auto;
  margin: 0 auto;
}

.page-about .about-net__links line {
  stroke: var(--about-hair);
  stroke-width: 1;
}

.page-about .about-net__hub {
  fill: var(--ink);
  stroke: var(--cyan);
  stroke-width: 1.5;
}

.page-about .about-net__hubtext {
  fill: var(--mint);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
}

.page-about .about-net__node circle {
  fill: var(--ink-2);
  stroke: var(--silver);
  stroke-width: 1.2;
  cursor: pointer;
  transition: fill 150ms var(--ease), stroke 150ms var(--ease), r 150ms var(--ease);
}

.page-about .about-net__node circle:hover,
.page-about .about-net__node circle:focus {
  fill: var(--cyan);
  stroke: var(--mint);
  r: 7;
}

.page-about .about-net__caption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

/* 引用牌 */
.page-about .about-quote {
  border: 1px solid var(--about-hair);
  border-left: 3px solid var(--coral);
  background: var(--ink);
  padding: 16px 18px;
}

.page-about .about-quote__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--coral);
}

.page-about .about-quote__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--paper);
}

/* 团队 */
.page-about .about-team__figure {
  margin: 0 0 18px;
  border: 1px solid var(--about-hair);
  background: var(--panel);
}

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

.page-about .about-team__figure figcaption {
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
  border-top: 1px solid var(--about-hair);
}

.page-about .about-team {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-about .about-team__col {
  border: 1px solid var(--about-hair);
  background: var(--panel);
  padding: 16px 16px 18px;
  transition: border-color 150ms var(--ease), transform 150ms var(--ease);
}

.page-about .about-team__col:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-about .about-team__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--about-hair);
}

.page-about .about-team__head h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 17px;
  color: var(--paper);
}

.page-about .about-team__count {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 38px;
  line-height: 0.9;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
}

.page-about .about-team__list {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-team__list li {
  position: relative;
  padding-left: 14px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--silver);
}

.page-about .about-team__list li + li {
  margin-top: 8px;
}

.page-about .about-team__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 5px;
  height: 5px;
  background: var(--teal);
}

/* 时间线 */
.page-about .about-timeline__figure {
  margin: 0 0 22px;
  border: 1px solid var(--about-hair);
  background: var(--panel);
}

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

.page-about .about-timeline__figure figcaption {
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
  border-top: 1px solid var(--about-hair);
}

.page-about .about-timeline {
  margin: 0;
  padding: 0 0 0 22px;
  list-style: none;
  border-left: 1px solid var(--about-hair);
}

.page-about .about-timeline__item {
  position: relative;
  padding: 12px 0 14px;
  transition: background 200ms var(--ease);
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 22px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ink);
  border: 1px solid var(--cyan);
  transition: background 200ms var(--ease), box-shadow 200ms var(--ease);
}

.page-about .about-timeline__item + .about-timeline__item {
  border-top: 1px solid rgba(30, 74, 60, 0.7);
}

.page-about .about-timeline__item:target {
  background: linear-gradient(90deg, rgba(55, 245, 193, 0.08), rgba(55, 245, 193, 0));
}

.page-about .about-timeline__item:target::before {
  background: var(--coral);
  border-color: var(--coral);
  box-shadow: 0 0 0 4px rgba(255, 107, 74, 0.18);
}

.page-about .about-timeline__year {
  display: inline-block;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 28px;
  line-height: 0.95;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 150ms var(--ease);
}

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

.page-about .about-timeline__title {
  margin: 6px 0 4px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 16px;
  color: var(--paper);
}

.page-about .about-timeline__text {
  margin: 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.7;
  color: var(--silver);
}

/* 值守 */
.page-about .about-duty {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--about-hair);
  border: 1px solid var(--about-hair);
}

.page-about .about-duty__item {
  background: var(--ink);
  padding: 16px;
}

.page-about .about-duty__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--coral);
}

.page-about .about-duty__value {
  display: block;
  margin-top: 8px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 20px;
  color: var(--paper);
}

.page-about .about-duty__sub {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* 成果 */
.page-about .about-wins {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.page-about .about-wins__card {
  border: 1px solid var(--about-hair);
  border-top: 2px solid var(--cyan);
  background: var(--panel);
  padding: 16px 14px;
  transition: border-color 150ms var(--ease), transform 150ms var(--ease);
}

.page-about .about-wins__card:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-about .about-wins__num {
  display: block;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 36px;
  line-height: 0.92;
  font-variant-numeric: tabular-nums;
  color: var(--paper);
}

.page-about .about-wins__label {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* 尾部通道 */
.page-about .about-cta {
  border-top: 1px solid var(--about-hair);
  background:
    linear-gradient(135deg, rgba(55, 245, 193, 0.1) 0%, rgba(6, 17, 14, 0) 46%),
    var(--ink-2);
}

.page-about .about-cta__inner {
  padding: clamp(28px, 4.5vw, 52px) 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-about .about-cta__text h2 {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(21px, 3.2vw, 28px);
  line-height: 1.3;
  color: var(--paper);
}

.page-about .about-cta__text p {
  margin: 0;
  max-width: 38em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--silver);
}

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

/* 断点 */
@media (min-width: 720px) {
  .page-about .about-team {
    grid-template-columns: 6fr 5fr 3fr;
  }

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

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

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

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }

  .page-about .about-section__inner {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
  }

  .page-about .about-section__rail {
    padding: 26px 0 0 14px;
  }

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

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

  .page-about .about-team__col:hover,
  .page-about .about-wins__card:hover {
    transform: none;
  }
}
<<<END>>>