.page-about {
  --about-axis: 72px;
  --about-line: rgba(185, 195, 190, 0.2);
  --about-card: #14291F;
  --about-card-deep: #1D3A2C;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + 44px) 0 60px;
  border-bottom: 2px solid var(--ink);
  background:
    radial-gradient(120% 90% at 88% 2%, rgba(217, 242, 39, 0.16), transparent 56%),
    linear-gradient(180deg, var(--field-800), var(--field-900));
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: -12%;
  right: -12%;
  bottom: -110px;
  height: 260px;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(217, 242, 39, 0.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(217, 242, 39, 0.09) 1px, transparent 1px);
  background-size: 52px 52px;
  transform: perspective(420px) rotateX(62deg);
  transform-origin: bottom center;
}

.page-about .crumbs {
  position: relative;
  z-index: 1;
  margin-bottom: 26px;
}

.page-about .hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 36px;
}

.page-about .hero-copy h1 {
  margin: 16px 0 0;
  font-size: clamp(2.05rem, 1.1rem + 5.2vw, 4.1rem);
  line-height: 1.06;
  letter-spacing: -0.022em;
  font-weight: 800;
  color: var(--chalk);
  max-width: 16em;
}

.page-about .about-hero .lede {
  margin: 22px 0 0;
  max-width: 40em;
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--gray-300);
}

.page-about .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-about .hero-facts {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-about .hero-facts .fact {
  border: 2px solid var(--ink);
  background: var(--about-card-deep);
  box-shadow: 6px 6px 0 rgba(10, 15, 13, 0.9);
  padding: 14px 14px 16px;
}

.page-about .hero-facts dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--gray-600);
}

.page-about .hero-facts dd {
  margin: 8px 0 0;
  font-size: 1.28rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--yellow-400);
  font-variant-numeric: tabular-nums;
}

/* ---------- 通用标题 ---------- */
.page-about h2 {
  margin: 0 0 14px;
  font-size: clamp(1.55rem, 1.05rem + 2.2vw, 2.6rem);
  line-height: 1.16;
  letter-spacing: -0.018em;
  font-weight: 800;
  color: var(--chalk);
}

.page-about h3 {
  margin: 0 0 10px;
  font-size: 1.1rem;
  line-height: 1.35;
  font-weight: 700;
  color: var(--chalk);
}

.page-about p {
  margin: 0 0 14px;
  line-height: 1.75;
  color: var(--gray-300);
}

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

.page-about .about-timeline .lede,
.page-about .lanes-head .lede,
.page-about .flow-head .lede {
  max-width: 44em;
  font-size: 1.02rem;
}

/* ---------- 时间轴区 ---------- */
.page-about .tl-head {
  display: grid;
  gap: 28px;
  margin-bottom: 44px;
}

.page-about .tl-figure {
  margin: 0;
}

.page-about .tl-figure img,
.page-about .team-figure img,
.page-about .report-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .frame-caption {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--gray-600);
  margin-top: 10px;
}

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

.page-about .tl-row {
  display: grid;
  grid-template-columns: var(--about-axis) minmax(0, 1fr);
  padding: 22px 0;
  border-top: 1px solid var(--about-line);
}

.page-about .tl-row:first-child {
  border-top: 0;
}

.page-about .tl-axis {
  position: relative;
  text-align: right;
  padding-right: 26px;
  padding-top: 22px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.page-about .tl-axis::before {
  content: "";
  position: absolute;
  right: 10px;
  top: -22px;
  bottom: 0;
  width: 2px;
  background: var(--about-line);
}

.page-about .tl-row:first-child .tl-axis::before {
  top: 30px;
}

.page-about .tl-row:last-child .tl-axis::before {
  bottom: auto;
  height: 64px;
}

.page-about .tl-dot {
  position: absolute;
  right: 3px;
  top: 30px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 3px solid var(--gray-600);
  background: var(--field-900);
  transition: border-color 0.22s var(--ease), background-color 0.22s var(--ease), transform 0.22s var(--ease);
}

.page-about .tl-row.is-open .tl-dot,
.page-about .tl-row:hover .tl-dot,
.page-about .tl-row:focus-within .tl-dot {
  border-color: var(--yellow-400);
  background: var(--yellow-400);
  transform: scale(1.14);
}

.page-about .tl-year {
  display: block;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gray-300);
}

.page-about .tl-round {
  display: block;
  margin-top: 4px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gray-600);
}

.page-about .tl-body {
  padding-top: 4px;
}

.page-about .tl-body p {
  max-width: 52em;
}

.page-about .tl-note {
  max-height: 0;
  overflow: hidden;
  margin-top: 0;
  padding-left: 14px;
  border-left: 2px solid rgba(217, 242, 39, 0.4);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.8;
  color: var(--gray-600);
  transition: max-height 0.3s var(--ease), margin-top 0.3s var(--ease);
}

.page-about .tl-row.is-open .tl-note,
.page-about .tl-row:hover .tl-note,
.page-about .tl-row:focus-within .tl-note {
  max-height: 220px;
  margin-top: 14px;
}

/* ---------- 团队分工 ---------- */
.page-about .about-team {
  background: linear-gradient(180deg, rgba(20, 41, 31, 0.72), rgba(14, 31, 26, 0));
  border-top: 1px solid var(--about-line);
  border-bottom: 1px solid var(--about-line);
}

.page-about .team-shell {
  display: grid;
  gap: 32px;
}

.page-about .team-copy p {
  max-width: 46em;
}

.page-about .team-facts {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-about .team-facts li {
  border: 2px solid var(--ink);
  background: var(--about-card);
  box-shadow: 5px 5px 0 rgba(10, 15, 13, 0.9);
  padding: 12px 12px 14px;
}

.page-about .tf-num {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1;
  color: var(--yellow-400);
  font-variant-numeric: tabular-nums;
}

.page-about .tf-label {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--gray-600);
}

.page-about .team-figure {
  margin: 0;
}

/* ---------- 流程 ---------- */
.page-about .flow-head {
  margin-bottom: 30px;
}

.page-about .flow-track {
  display: block;
  width: 100%;
  height: 20px;
  margin-bottom: 20px;
}

.page-about .flow-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .flow-step {
  position: relative;
  border: 2px solid var(--ink);
  background: var(--about-card);
  box-shadow: 5px 5px 0 rgba(10, 15, 13, 0.9);
  padding: 18px 16px 20px;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-about .flow-step:hover {
  transform: translate(-2px, -4px);
  box-shadow: 9px 9px 0 rgba(10, 15, 13, 0.9);
  background: var(--about-card-deep);
}

.page-about .flow-idx {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--yellow-400);
  margin-bottom: 10px;
}

.page-about .flow-step h3 {
  font-size: 1.02rem;
  margin-bottom: 8px;
}

.page-about .flow-step p {
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--gray-600);
}

/* ---------- 三类栏目 ---------- */
.page-about .lanes-head {
  margin-bottom: 26px;
}

.page-about .lane-switch {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.page-about .lane-panels {
  display: grid;
  gap: 14px;
}

.page-about .lane-panel {
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-hard);
  padding: 22px 20px;
  background: var(--about-card);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-about .lane-panel--league {
  background: var(--about-card-deep);
}

.page-about .lane-panel--watch {
  background: #0F231C;
}

.page-about .lane-panel:hover {
  transform: translate(-2px, -4px);
  box-shadow: var(--shadow-hard-lg);
}

.page-about .lane-key {
  display: block;
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--chalk);
}

.page-about .lane-sub {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--yellow-200);
}

.page-about .lane-body {
  margin-top: 16px;
}

.page-about .lane-body p {
  font-size: 0.96rem;
}

.page-about .lane-link {
  display: inline-block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--orange-500);
  text-decoration: none;
  border-bottom: 2px solid rgba(255, 107, 26, 0.45);
  padding-bottom: 2px;
}

.page-about .lane-link:hover {
  border-bottom-color: var(--orange-500);
}

.page-about .lane-panel[hidden] {
  display: none;
}

/* ---------- 来源与版本 ---------- */
.page-about .about-version {
  border-top: 1px solid var(--about-line);
}

.page-about .version-shell {
  display: grid;
  gap: 28px;
}

.page-about .version-copy p {
  max-width: 44em;
}

.page-about .spec-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border: 2px solid var(--ink);
  background: var(--about-card);
  box-shadow: var(--shadow-hard);
}

.page-about .spec-item {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border-top: 1px solid var(--about-line);
}

.page-about .spec-item:first-child {
  border-top: 0;
}

.page-about .spec-key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--yellow-400);
}

.page-about .spec-val {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--gray-300);
}

/* ---------- 赛季回顾 ---------- */
.page-about .report-figure {
  margin: 0 0 36px;
}

.page-about .report-grid {
  display: grid;
  gap: 28px;
}

.page-about .report-copy p {
  max-width: 46em;
}

.page-about .report-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  align-content: start;
}

.page-about .rs-item {
  border: 2px solid var(--ink);
  background: var(--about-card-deep);
  box-shadow: 5px 5px 0 rgba(10, 15, 13, 0.9);
  padding: 14px 12px 16px;
  text-align: left;
}

.page-about .rs-num {
  display: block;
  font-size: 1.42rem;
  font-weight: 800;
  line-height: 1;
  color: var(--yellow-400);
  font-variant-numeric: tabular-nums;
}

.page-about .rs-label {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--gray-600);
}

/* ---------- 结尾行动区 ---------- */
.page-about .about-cta {
  margin-top: var(--section-gap);
  padding: 52px 0 60px;
  background: var(--yellow-400);
  border-top: 3px solid var(--ink);
  border-bottom: 3px solid var(--ink);
}

.page-about .cta-eyebrow {
  color: #33421A;
}

.page-about .about-cta h2 {
  color: var(--ink);
  margin-bottom: 10px;
}

.page-about .cta-head p {
  color: #2A3A16;
  margin-bottom: 0;
  font-weight: 600;
}

.page-about .cta-head {
  margin-bottom: 28px;
}

.page-about .next-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .next-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  background: var(--field-900);
  color: var(--chalk);
  text-decoration: none;
  font-weight: 600;
  border: 2px solid var(--ink);
  box-shadow: 5px 5px 0 var(--ink);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), color 0.2s var(--ease);
}

.page-about .next-links a:hover,
.page-about .next-links a:focus-visible {
  transform: translate(-2px, -4px);
  box-shadow: 9px 9px 0 var(--ink);
  color: var(--yellow-400);
}

.page-about .next-links .arrow {
  font-family: var(--font-mono);
  color: var(--yellow-400);
  flex: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .about-hero {
    padding-top: calc(var(--header-h) + 60px);
    padding-bottom: 76px;
  }

  .page-about .tl-head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: end;
    gap: 40px;
  }

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

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

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

@media (min-width: 900px) {
  .page-about {
    --about-axis: 132px;
  }

  .page-about .hero-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    align-items: end;
    gap: 56px;
  }

  .page-about .tl-row {
    padding: 28px 0;
  }

  .page-about .team-shell {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
    gap: 48px;
  }

  .page-about .version-shell {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 48px;
    align-items: start;
  }

  .page-about .report-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 48px;
    align-items: start;
  }

  .page-about .report-stats {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-about .lane-panel {
    display: grid;
    grid-template-columns: minmax(0, 220px) minmax(0, 1fr);
    gap: 30px;
    align-items: start;
    padding: 26px 24px;
  }

  .page-about .lane-body {
    margin-top: 0;
  }

  .page-about .lane-panel[hidden] {
    display: none;
  }
}

@media (min-width: 1040px) {
  .page-about .flow-steps {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}
<<<END>>>