.page-about {
  --about-ink-soft: #4A574F;
  --about-rule-dark: rgba(237, 234, 225, 0.14);
  --about-rule-light: rgba(8, 23, 19, 0.16);
  --about-measure: 62ch;
  --about-band: clamp(64px, 9vw, 128px);
  background: var(--night-ink);
  color: var(--bone-white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

.page-about p {
  margin: 0 0 1em;
}

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

/* ---------- 面包屑区 ---------- */

.page-about .about-crumb {
  padding-top: clamp(18px, 3vw, 30px);
  padding-bottom: clamp(6px, 1.5vw, 14px);
}

/* ---------- 通用文本组件 ---------- */

.page-about .about-idx {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--stone-grey);
  font-variant-numeric: tabular-nums;
}

.page-about .about-idx__key {
  color: var(--lime-signal);
  font-weight: 600;
}

.page-about .about-idx__sep {
  color: var(--hairline);
}

.page-about .about-h2 {
  margin: 0 0 22px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.08;
  letter-spacing: -0.015em;
  max-width: 20ch;
}

.page-about .about-p {
  max-width: var(--about-measure);
}

.page-about .about-p--wide {
  max-width: 76ch;
}

.page-about .about-note {
  max-width: 52ch;
  font-size: 13px;
  line-height: 1.75;
  color: var(--stone-grey);
  margin: 0 0 12px;
}

.page-about .about-quote {
  max-width: 46ch;
  margin: 0 0 20px;
  padding-left: 16px;
  border-left: 2px solid var(--gold-record);
  font-weight: 500;
  color: var(--bone-white);
}

.page-about .about-band--light .about-quote {
  color: #1E2C25;
}

.page-about .about-band--light .about-note {
  color: var(--about-ink-soft);
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  padding-top: clamp(28px, 5vw, 56px);
}

.page-about .about-hero__title {
  margin: 0 0 22px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(34px, 6.4vw, 66px);
  line-height: 0.98;
  letter-spacing: -0.022em;
  max-width: 14ch;
}

.page-about .about-hero__lead {
  max-width: var(--about-measure);
  color: #C9CEC7;
}

.page-about .about-digest {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: clamp(30px, 4vw, 48px) 0 0;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}

.page-about .about-digest__cell {
  display: grid;
  gap: 6px;
  align-content: start;
  padding: 18px 20px 20px;
  background: var(--night-ink);
}

.page-about .about-digest dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--stone-grey);
}

.page-about .about-digest dd {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(22px, 3.4vw, 34px);
  line-height: 1.1;
  color: var(--gold-record);
}

/* ---------- 首屏接缝图 ---------- */

.page-about .about-seam {
  margin: clamp(48px, 7vw, 88px) 0 0;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  position: relative;
  overflow: hidden;
}

.page-about .about-seam::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(14, 42, 34, 0.34);
  mix-blend-mode: multiply;
  pointer-events: none;
}

.page-about .about-seam img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  filter: saturate(0.72) brightness(0.74) contrast(1.06);
}

.page-about .about-seam__cap {
  position: relative;
  z-index: 1;
  margin: 0;
  padding: 12px var(--gutter) 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--stone-grey);
  border-top: 1px solid var(--hairline);
}

/* ---------- 章节带 ---------- */

.page-about .about-band {
  padding: var(--about-band) 0;
}

.page-about .about-band--tight {
  padding: clamp(44px, 6vw, 84px) 0;
}

.page-about .about-band--light {
  background: var(--bone-white);
  color: var(--night-ink);
}

.page-about .about-band--panel {
  background: var(--moss-panel);
}

.page-about .about-band--more {
  border-top: 1px solid var(--hairline);
  background: var(--night-ink);
}

.page-about .about-grid {
  display: grid;
  gap: clamp(32px, 5vw, 64px);
}

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

/* ---------- 三层清单 ---------- */

.page-about .about-layers {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  border-top: 1px solid var(--about-rule-light);
}

.page-about .about-layers li {
  display: grid;
  gap: 8px;
  padding: 22px 0 24px;
  border-bottom: 1px solid var(--about-rule-light);
}

.page-about .about-layers__code {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--clay-accent);
}

.page-about .about-layers__name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.page-about .about-side {
  align-self: start;
  padding-top: 6px;
}

/* ---------- 联赛口径 ---------- */

.page-about .about-leagues {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  border-top: 1px solid var(--about-rule-dark);
}

.page-about .about-leagues li {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 14px 2px;
  border-bottom: 1px solid var(--about-rule-dark);
}

.page-about .about-leagues__code {
  flex: 0 0 58px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--lime-signal);
}

.page-about .about-leagues__name {
  font-size: 16px;
  color: var(--bone-white);
}

/* ---------- 工作流 ---------- */

.page-about .about-flow {
  list-style: none;
  margin: 32px 0 30px;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}

.page-about .about-flow__step {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 20px 20px 22px;
  background: var(--moss-panel);
}

.page-about .about-flow__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold-record);
}

.page-about .about-flow__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.2;
}

.page-about .about-flow__step .about-p {
  font-size: 15px;
  color: #C6CCC6;
  margin: 0;
}

/* ---------- 图片框 ---------- */

.page-about .about-figure {
  margin: 0;
  align-self: start;
  border: 1px solid var(--hairline);
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 6;
  object-fit: cover;
  filter: saturate(0.7) brightness(0.76);
}

.page-about .about-figure__cap {
  margin: 0;
  padding: 12px 14px 14px;
  border-top: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: var(--stone-grey);
}

.page-about .about-banner {
  margin: clamp(30px, 4vw, 52px) 0 0;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}

.page-about .about-banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 3;
  object-fit: cover;
  filter: saturate(0.68) brightness(0.7);
}

.page-about .about-banner__cap {
  margin: 0;
  padding: 12px var(--gutter) 14px;
  border-top: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--stone-grey);
}

/* ---------- 横向年表 ---------- */

.page-about .about-track {
  list-style: none;
  display: flex;
  gap: 0;
  margin: clamp(34px, 5vw, 60px) 0 0;
  padding: 0;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}

.page-about .about-track::-webkit-scrollbar {
  height: 6px;
}

.page-about .about-track::-webkit-scrollbar-track {
  background: var(--moss-panel);
}

.page-about .about-track::-webkit-scrollbar-thumb {
  background: var(--pitch-deep);
}

.page-about .about-track li {
  position: relative;
  flex: 0 0 244px;
  scroll-snap-align: start;
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 26px 20px 30px;
  border-right: 1px solid var(--hairline);
}

.page-about .about-track li::before {
  content: "";
  position: absolute;
  top: 0;
  left: 20px;
  width: 1px;
  height: 18px;
  background: var(--gold-record);
}

.page-about .about-track li:last-child::before {
  background: var(--lime-signal);
}

.page-about .about-track__era {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold-record);
}

.page-about .about-track li:last-child .about-track__era {
  color: var(--lime-signal);
}

.page-about .about-track__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.22;
  letter-spacing: -0.01em;
}

.page-about .about-track__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: #BCC3BC;
}

.page-about .about-track:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 3px;
}

.page-about .about-track__hint {
  margin-top: 16px;
  max-width: none;
}

/* ---------- 共建 ---------- */

.page-about .about-partner {
  padding: 0 0 20px 18px;
  margin-bottom: 22px;
  border-left: 3px solid var(--clay-accent);
  border-bottom: 1px solid var(--about-rule-light);
}

.page-about .about-partner:last-of-type {
  margin-bottom: 26px;
}

.page-about .about-partner__name {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.22;
}

.page-about .about-partner .about-p {
  font-size: 15px;
  max-width: 56ch;
}

/* ---------- 落款 ---------- */

.page-about .about-facts {
  margin: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--about-rule-dark);
  max-width: 620px;
}

.page-about .about-facts > div {
  display: grid;
  grid-template-columns: minmax(88px, 120px) 1fr;
  gap: 14px;
  padding: 13px 2px;
  border-bottom: 1px solid var(--about-rule-dark);
}

.page-about .about-facts dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--stone-grey);
  padding-top: 3px;
}

.page-about .about-facts dd {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  line-height: 1.6;
  color: var(--bone-white);
  word-break: break-word;
}

.page-about .about-facts a {
  color: var(--lime-signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 242, 78, 0.4);
}

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

/* ---------- 交叉链接 ---------- */

.page-about .about-links {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}

.page-about .about-links li {
  background: var(--night-ink);
}

.page-about .about-links a {
  display: block;
  padding: 18px 20px;
  color: var(--bone-white);
  text-decoration: none;
  font-size: 15px;
  transition: background-color 160ms ease-out, color 160ms ease-out;
}

.page-about .about-links a:hover,
.page-about .about-links a:focus-visible {
  background: var(--pitch-deep);
  color: var(--lime-signal);
}

.page-about .about-links a:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: -2px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-about .about-digest {
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  }
}

@media (min-width: 900px) {
  .page-about .about-grid--7-5 {
    grid-template-columns: 7fr 5fr;
  }

  .page-about .about-grid--5-7 {
    grid-template-columns: 5fr 7fr;
  }

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

  .page-about .about-track li {
    flex: 0 0 268px;
  }

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

  .page-about .about-side {
    padding-left: clamp(18px, 3vw, 42px);
    border-left: 1px solid var(--about-rule-dark);
  }

  .page-about .about-band--light .about-side {
    border-left-color: var(--about-rule-light);
  }
}

@media (min-width: 1200px) {
  .page-about .about-track li {
    flex: 1 1 0;
    min-width: 0;
  }
}

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