.page-about {
  --ab-pad: clamp(20px, 3.4vw, 36px);
  background: var(--cloud);
  color: var(--graphite);
}

.page-about h1,
.page-about h2,
.page-about h3 {
  margin: 0;
}

.page-about a:focus-visible {
  outline: 2px solid var(--gold-bright);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.ab-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--cloud);
  padding: clamp(26px, 4vw, 48px) 0 clamp(44px, 7vw, 96px);
}

.ab-hero::before {
  content: "";
  position: absolute;
  top: -25%;
  right: -12%;
  width: 78%;
  height: 160%;
  background: linear-gradient(150deg, rgba(201, 162, 39, 0.20), rgba(201, 162, 39, 0) 62%);
  clip-path: polygon(46% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.ab-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), rgba(201, 162, 39, 0));
}

.ab-hero .sk-crumbs__link,
.ab-hero .sk-crumbs__current,
.ab-hero .sk-crumbs__sep {
  color: var(--mist);
}

.ab-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  margin-top: clamp(22px, 3.4vw, 38px);
}

.ab-kicker {
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--gold-deep);
  margin: 0;
}

.ab-hero .ab-kicker {
  color: var(--gold);
}

.ab-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 5.4vw, 3.4rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--cloud);
  margin-top: 14px;
  max-width: 21ch;
}

.ab-accent {
  color: var(--gold-bright);
}

.ab-hero__lede {
  max-width: 60ch;
  margin: 18px 0 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: #D9D5C9;
}

.ab-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.ab-board {
  border: 1px solid var(--line-gold);
  background: var(--ink-panel);
  padding: var(--ab-pad);
}

.ab-board__cap {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--gold);
}

.ab-board__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line-light);
}

.ab-board__k {
  font-size: 13px;
  line-height: 1.5;
  color: var(--mist);
}

.ab-board__v {
  font-family: var(--font-mono);
  font-size: 21px;
  line-height: 1.1;
  color: var(--gold-bright);
  white-space: nowrap;
}

.ab-board__v small {
  font-size: 12px;
  color: var(--mist);
}

.ab-board__note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 色带 ---------- */
.ab-band {
  padding: clamp(44px, 6.5vw, 88px) 0;
}

.ab-band--paper {
  background: var(--cloud);
}

.ab-band--ink {
  background: var(--ink);
  color: var(--cloud);
}

.ab-band--deep {
  background: var(--ink-panel);
  color: var(--cloud);
}

.ab-split {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.ab-h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 3.4vw, 2.15rem);
  line-height: 1.26;
  letter-spacing: -0.015em;
  margin-top: 12px;
  color: var(--ink);
}

.ab-band--ink .ab-h2,
.ab-band--deep .ab-h2 {
  color: var(--cloud);
}

.ab-lead {
  margin: 22px 0 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.9;
  color: var(--graphite);
  max-width: 66ch;
}

.ab-lead--gap {
  margin-top: 14px;
}

.ab-band--ink .ab-lead,
.ab-band--deep .ab-lead {
  color: #CFCBC0;
}

.ab-band--ink .ab-kicker,
.ab-band--deep .ab-kicker {
  color: var(--gold);
}

/* ---------- 要点编号 ---------- */
.ab-points {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}

.ab-point {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid var(--line-dark);
}

.ab-point__no {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gold-deep);
  padding-top: 3px;
}

.ab-point h3 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: 0.01em;
}

.ab-point p {
  margin: 7px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
}

/* ---------- 图片 ---------- */
.ab-figure {
  margin: 0 0 clamp(26px, 4vw, 44px);
  border: 1px solid var(--line-gold);
  background: var(--ink-deep);
}

.ab-figure--tight {
  margin: 26px 0 0;
}

.ab-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.ab-figure figcaption {
  padding: 11px 14px;
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

/* ---------- 时间线 ---------- */
.ab-tl {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-gold);
}

.ab-tl__item {
  display: grid;
  gap: 10px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line-light);
  transition: background 0.3s var(--ease);
}

.ab-tl__year {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: clamp(22px, 2.8vw, 30px);
  line-height: 1;
  color: var(--gold-bright);
  letter-spacing: -0.01em;
}

.ab-tl__year small {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.ab-tl__body h3 {
  font-family: var(--font-display);
  font-size: clamp(16px, 2vw, 19px);
  font-weight: 800;
  color: var(--cloud);
}

.ab-tl__body p {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
  max-width: 62ch;
}

.ab-tl__more {
  display: block;
}

.ab-tl__more p {
  font-family: var(--font-serif);
  font-size: 14px;
  line-height: 1.8;
  color: rgba(201, 162, 39, 0.92);
  margin: 10px 0 0;
}

.ab-tl__more a {
  display: inline-block;
  margin-top: 10px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--gold-bright);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
  padding-bottom: 2px;
}

.ab-tl__more a:hover {
  color: var(--cloud);
  border-bottom-color: var(--gold-bright);
}

/* ---------- 联赛分区 ---------- */
.ab-league__grid {
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
}

.ab-zones {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.ab-zone {
  padding: 16px 0 16px 16px;
  border-left: 2px solid var(--gold);
  border-top: 1px solid var(--line-dark);
}

.ab-zone:first-child {
  border-top: none;
}

.ab-zone h3 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  color: var(--ink);
}

.ab-zone p {
  margin: 7px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
  max-width: 62ch;
}

.ab-map {
  margin: 0;
  padding: clamp(14px, 2.4vw, 24px);
  background: var(--ink);
  border: 1px solid var(--line-gold);
}

.ab-map svg {
  display: block;
  width: 100%;
  height: auto;
}

.ab-map__cap {
  margin: 14px 0 0;
  font-family: var(--font-serif);
  font-size: 12.5px;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--mist);
}

/* ---------- 核验工序 ---------- */
.ab-steps {
  display: grid;
  gap: 12px;
  margin-top: 28px;
}

.ab-step {
  padding: 18px;
  border: 1px solid var(--line-gold-soft);
  background: rgba(244, 241, 232, 0.04);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.ab-step:hover {
  border-color: var(--line-gold);
  transform: translateY(-2px);
}

.ab-step__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.ab-step h3 {
  margin-top: 8px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  color: var(--cloud);
}

.ab-step p {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 团队控制台 ---------- */
.ab-console {
  border: 1px solid var(--line-gold);
  background: var(--ink);
  color: var(--cloud);
  padding: var(--ab-pad);
}

.ab-console__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-gold);
}

.ab-console__cap {
  font-family: var(--font-serif);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--gold);
}

.ab-console__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--flame);
}

.ab-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line-light);
}

.ab-row:last-child {
  border-bottom: none;
}

.ab-row__k {
  font-size: 14px;
  line-height: 1.6;
  color: var(--mist);
}

.ab-row__v {
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1.3;
  color: var(--gold-bright);
  text-align: right;
}

/* ---------- 信任与入口 ---------- */
.ab-cards {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.ab-card {
  padding: 20px;
  border-top: 2px solid var(--gold);
  background: rgba(244, 241, 232, 0.05);
}

.ab-card h3 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  color: var(--cloud);
}

.ab-card p {
  margin: 9px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--mist);
}

.ab-links {
  display: grid;
  gap: 12px;
  margin-top: clamp(26px, 4vw, 40px);
}

.ab-link {
  display: block;
  padding: 18px 20px;
  text-decoration: none;
  color: inherit;
  border: 1px solid var(--line-gold-soft);
  background: rgba(201, 162, 39, 0.05);
  transition: border-color 0.28s var(--ease), background 0.28s var(--ease), transform 0.28s var(--ease);
}

.ab-link:hover {
  border-color: var(--gold-bright);
  background: rgba(201, 162, 39, 0.12);
  transform: translateY(-2px);
}

.ab-link__label {
  display: block;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  color: var(--cloud);
}

.ab-link__hint {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .ab-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .ab-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .ab-split {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: clamp(28px, 5vw, 64px);
  }

  .ab-league__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: start;
  }

  .ab-tl__item {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: clamp(18px, 3vw, 40px);
    padding: 24px 0;
  }

  .ab-tl__item:hover,
  .ab-tl__item:focus-within {
    background: rgba(201, 162, 39, 0.07);
  }

  .ab-tl__more {
    display: grid;
    grid-template-rows: 0fr;
    opacity: 0;
    transition: grid-template-rows 0.35s var(--ease), opacity 0.28s var(--ease);
  }

  .ab-tl__more > div {
    overflow: hidden;
  }

  .ab-tl__item:hover .ab-tl__more,
  .ab-tl__item:focus-within .ab-tl__more {
    grid-template-rows: 1fr;
    opacity: 1;
  }
}

@media (min-width: 960px) {
  .ab-hero__grid {
    grid-template-columns: minmax(0, 1.42fr) minmax(0, 0.78fr);
    align-items: end;
  }

  .ab-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-tl__item,
  .page-about .ab-tl__more,
  .page-about .ab-step,
  .page-about .ab-link {
    transition: none;
  }

  .page-about .ab-step:hover,
  .page-about .ab-link:hover {
    transform: none;
  }
}
<<<END>>>