.page-about {
  --about-text: 640px;
  --about-rail: 250px;
  --about-gap: 68px;
  --about-line: rgba(46, 107, 82, 0.55);
  --about-faint: rgba(46, 107, 82, 0.32);
  background: var(--night);
  color: var(--edge);
}

.page-about .breadcrumb {
  padding: 22px 0 0;
}

.page-about .about-hero {
  padding: 30px 0 0;
}

.page-about .about-hero__kicker {
  display: inline-block;
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.2rem, 6.4vw, 4.5rem);
  line-height: 1.03;
  letter-spacing: -0.015em;
  color: var(--paper);
  margin: 22px 0 0;
  max-width: 15ch;
}

.page-about .about-hero__lead {
  margin: 22px 0 0;
  max-width: 620px;
  font-size: 1.02rem;
  line-height: 1.9;
  color: var(--edge);
}

.page-about .about-stats {
  list-style: none;
  margin: 36px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--about-line);
  border: 1px solid var(--about-line);
}

.page-about .about-stats__item {
  background: var(--night);
  padding: 16px 16px 18px;
  min-width: 0;
}

.page-about .about-stats__value {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.8rem, 5vw, 2.5rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--fluo);
}

.page-about .about-stats__label {
  display: block;
  margin-top: 9px;
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--grey);
}

.page-about .about-hero__media {
  margin: 42px 0 0;
}

.page-about .about-body {
  padding: 62px 0 0;
}

.page-about .about-body__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 44px;
  align-items: start;
}

.page-about .about-body__main {
  min-width: 0;
}

/* ---------- 章节 ---------- */

.page-about .about-chapter {
  padding: 54px 0 0;
  border-top: var(--rule);
}

.page-about .about-chapter:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-about .about-chapter__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 20px;
}

.page-about .about-chapter__num {
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--arc);
  padding-top: 4px;
}

.page-about .about-chapter__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.45rem, 3.6vw, 2.1rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 0;
}

.page-about .about-chapter p {
  margin: 0 0 18px;
  max-width: var(--about-text);
  font-size: 1rem;
  line-height: 1.9;
  color: var(--edge);
}

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

.page-about .about-chapter p a {
  color: var(--fluo);
  text-decoration: none;
  border-bottom: 1px solid rgba(217, 255, 75, 0.42);
}

.page-about .about-chapter p a:hover {
  border-bottom-color: var(--fluo);
}

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

/* ---------- 引文块 ---------- */

.page-about .pull-quote {
  position: relative;
  max-width: var(--about-text);
  margin: 34px 0 0;
  padding: 26px 26px 28px;
  background: var(--paper);
  border-left: 4px solid var(--arc);
  box-shadow: 8px 8px 0 rgba(7, 19, 34, 0.55);
}

.page-about .pull-quote::before {
  content: "";
  position: absolute;
  inset: 6px 6px auto auto;
  width: 46px;
  height: 1px;
  background: rgba(12, 31, 25, 0.22);
}

.page-about .pull-quote__text {
  margin: 0;
  font-family: var(--font-note);
  font-size: 1.22rem;
  line-height: 1.75;
  letter-spacing: 0.01em;
  color: var(--night);
}

.page-about .pull-quote--deck {
  margin-top: 32px;
}

/* ---------- 团队表格 ---------- */

.page-about .about-table-scroll {
  margin: 26px 0 24px;
  max-width: var(--about-text);
}

.page-about .crew-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.94rem;
}

.page-about .crew-table__caption {
  text-align: left;
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--grey);
  padding-bottom: 10px;
}

.page-about .crew-table th {
  text-align: left;
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: 0.08em;
  font-weight: 500;
  color: var(--grey);
  padding: 0 12px 10px 0;
  border-bottom: 1px solid var(--about-line);
}

.page-about .crew-table td {
  padding: 14px 12px 14px 0;
  vertical-align: top;
  line-height: 1.7;
  color: var(--edge);
  border-bottom: 1px solid var(--about-faint);
}

.page-about .crew-table th:first-child,
.page-about .crew-table td:first-child {
  padding-left: 0;
}

.page-about .crew-table td:first-child {
  color: var(--paper);
  font-weight: 600;
}

.page-about .crew-table td:nth-child(2) {
  font-family: var(--font-index);
  color: var(--fluo);
  white-space: nowrap;
}

.page-about .crew-table tbody tr:hover td {
  background: rgba(46, 107, 82, 0.16);
}

/* ---------- 比赛日流程 ---------- */

.page-about .match-journey {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  max-width: var(--about-text);
}

.page-about .match-journey__item {
  padding: 16px 0 18px;
  border-top: 1px dashed var(--about-line);
}

.page-about .match-journey__item:last-child {
  border-bottom: 1px dashed var(--about-line);
}

.page-about .match-journey__when {
  display: block;
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--arc);
}

.page-about .match-journey__what {
  margin: 8px 0 0;
  font-size: 0.97rem;
  line-height: 1.8;
  color: var(--edge);
}

/* ---------- 看台与伙伴 ---------- */

.page-about .about-facts {
  margin: 26px 0 0;
  max-width: var(--about-text);
  border-top: var(--rule);
}

.page-about .about-facts__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 18px 0;
  border-bottom: var(--rule);
}

.page-about .about-facts__term {
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--fluo);
}

.page-about .about-facts__desc {
  margin: 0;
  font-size: 0.97rem;
  line-height: 1.85;
  color: var(--edge);
}

.page-about .about-facts__desc a {
  color: var(--arc);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 122, 26, 0.45);
}

.page-about .about-facts__desc a:hover {
  border-bottom-color: var(--arc);
}

/* ---------- 发展节点刻度尺 ---------- */

.page-about .node-scale {
  list-style: none;
  margin: 30px 0 0;
  padding: 0 0 0 30px;
  position: relative;
  max-width: var(--about-text);
}

.page-about .node-scale::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 10px;
  bottom: 14px;
  width: 1px;
  background: var(--about-line);
}

.page-about .node {
  position: relative;
  padding: 0 0 30px;
}

.page-about .node:last-child {
  padding-bottom: 4px;
}

.page-about .node::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 7px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--night);
  border: 2px solid var(--turf-line);
}

.page-about .node--now::before {
  background: var(--fluo);
  border-color: var(--fluo);
  box-shadow: 0 0 0 4px rgba(217, 255, 75, 0.18);
}

.page-about .node__year {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
  line-height: 1;
  color: var(--paper);
}

.page-about .node--now .node__year {
  color: var(--fluo);
}

.page-about .node__text {
  margin: 9px 0 0;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--grey);
}

/* ---------- 右侧章节索引 ---------- */

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

.page-about .about-rail__title {
  margin: 0 0 14px;
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--grey);
}

.page-about .about-toc {
  list-style: none;
  margin: 0;
  padding: 0;
}

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

.page-about .about-toc__link {
  display: block;
  padding: 9px 0 9px 14px;
  border-left: 1px solid var(--turf-line);
  font-family: var(--font-index);
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: 0.05em;
  color: var(--grey);
  text-decoration: none;
  transition: color 160ms ease, border-color 160ms ease;
}

.page-about .about-toc__link:hover {
  color: var(--edge);
}

.page-about .about-toc__link[data-active] {
  color: var(--fluo);
  border-left-color: var(--fluo);
}

/* ---------- 收尾行动区 ---------- */

.page-about .about-cta {
  margin-top: 72px;
  padding: 52px 0 64px;
  background: var(--deep);
  border-top: 1px solid var(--turf-line);
}

.page-about .about-cta__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  align-items: center;
}

.page-about .about-cta__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.4rem, 3.6vw, 2rem);
  line-height: 1.25;
  color: var(--paper);
  margin: 0;
}

.page-about .about-cta__lead {
  margin: 12px 0 0;
  max-width: 560px;
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--grey);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-facts__row {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }

  .page-about .match-journey__item {
    display: grid;
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
  }

  .page-about .match-journey__when {
    padding-top: 4px;
  }

  .page-about .match-journey__what {
    margin: 0;
  }
}

@media (min-width: 720px) {
  .page-about .about-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 40px;
  }
}

@media (min-width: 1000px) {
  .page-about .about-body__inner {
    grid-template-columns: minmax(0, 1fr) var(--about-rail);
    gap: var(--about-gap);
  }

  .page-about .about-rail {
    display: block;
    position: sticky;
    top: 92px;
  }

  .page-about .about-rail__inner {
    border-left: 1px solid var(--about-faint);
    padding-left: 0;
  }
}

@media (max-width: 719px) {
  .page-about .crew-table thead {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }

  .page-about .crew-table,
  .page-about .crew-table tbody,
  .page-about .crew-table tr,
  .page-about .crew-table td {
    display: block;
    width: 100%;
  }

  .page-about .crew-table tr {
    background: var(--turf);
    border: 1px solid var(--turf-line);
    padding: 6px 0;
    margin-bottom: 14px;
  }

  .page-about .crew-table td {
    border-bottom: 0;
    padding: 8px 16px;
  }

  .page-about .crew-table td:nth-child(2) {
    white-space: normal;
  }

  .page-about .crew-table td::before {
    content: attr(data-label);
    display: block;
    margin-bottom: 3px;
    font-family: var(--font-index);
    font-size: 11px;
    letter-spacing: 0.08em;
    color: var(--grey);
    font-weight: 400;
  }

  .page-about .crew-table td:first-child {
    font-family: var(--font-display);
    font-size: 1.05rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-toc__link {
    transition: none;
  }
}
<<<END>>>