.page-about {
  --ab-line: rgba(201, 162, 76, 0.26);
  --ab-line-soft: rgba(201, 162, 76, 0.12);
  --ab-panel: #1B1917;
  --ab-panel-2: #151312;
  --ab-trail-gap: clamp(40px, 6vw, 88px);
  position: relative;
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: clip;
}

.page-about > section {
  position: relative;
  padding: clamp(48px, 8vw, 104px) 0;
  overflow: clip;
}

.page-about a {
  color: var(--gold-hi);
  text-decoration: none;
  border-bottom: 1px solid var(--ab-line);
  transition: color .2s ease, border-color .2s ease;
}

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

/* ── 首屏 ───────────────────────────────── */
.page-about .about-hero {
  padding-top: clamp(20px, 4vw, 40px);
  padding-bottom: 0;
  background:
    radial-gradient(120% 82% at 10% 0%, rgba(180, 35, 43, .18), transparent 58%),
    radial-gradient(90% 72% at 94% 6%, rgba(201, 162, 76, .13), transparent 62%),
    var(--ink);
}

.page-about .about-hero__wrap {
  display: flex;
  flex-direction: column;
  gap: clamp(16px, 2.6vw, 24px);
}

.page-about .about-hero__crumb {
  margin-bottom: 4px;
}

.page-about .about-hero__kicker {
  color: var(--gold);
  letter-spacing: .24em;
  margin: 0;
}

.page-about .about-hero__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(42px, 9.6vw, 112px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--gold-hi);
  text-shadow: 0 2px 0 rgba(0, 0, 0, .55), 0 0 42px rgba(201, 162, 76, .16);
}

.page-about .about-hero__title-em {
  display: block;
  color: var(--cinnabar-hi);
  font-size: .74em;
  letter-spacing: .06em;
  text-shadow: 0 2px 0 rgba(0, 0, 0, .6), 0 0 34px rgba(180, 35, 43, .34);
}

.page-about .about-hero__lede {
  margin: 0;
  max-width: 34em;
  font-size: clamp(15px, 2vw, 18px);
  line-height: 1.85;
  color: var(--text-dim);
}

.page-about .about-hero__figs {
  list-style: none;
  margin: clamp(6px, 1.4vw, 14px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--ab-line);
  border: 1px solid var(--ab-line);
}

.page-about .about-hero__figs li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 14px 16px;
  background: linear-gradient(160deg, var(--ab-panel), var(--ab-panel-2));
}

.page-about .about-hero__num {
  font-family: var(--font-mono);
  font-size: clamp(20px, 3.2vw, 28px);
  font-weight: 700;
  color: var(--gold-hi);
  text-shadow: 0 0 0 transparent, 0 0 18px rgba(242, 210, 139, .25);
  letter-spacing: .01em;
}

.page-about .about-hero__cap {
  color: var(--text-mute);
}

.page-about .about-hero__figure {
  position: relative;
  margin: clamp(26px, 4.4vw, 48px) 0 0;
  padding: 0 var(--gutter);
}

.page-about .about-hero__figure::after {
  content: "";
  position: absolute;
  inset: 0 var(--gutter);
  pointer-events: none;
  background: radial-gradient(120% 110% at 50% 40%, transparent 52%, rgba(0, 0, 0, .62) 100%);
}

.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--ab-line);
  filter: saturate(.94) contrast(1.05);
}

.page-about .about-hero__figure .img-caption {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--text-mute);
}

/* ── 通用节标题 ─────────────────────────── */
.page-about .about-head {
  max-width: 64ch;
  margin-bottom: clamp(22px, 3.4vw, 40px);
}

.page-about .about-head--tight {
  margin-bottom: clamp(16px, 2.4vw, 24px);
}

.page-about .about-head__idx {
  margin: 0 0 10px;
  color: var(--gold);
  letter-spacing: .24em;
}

.page-about .about-head__title {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(28px, 5.2vw, 54px);
  line-height: 1.2;
  color: var(--gold-hi);
}

.page-about .about-head__desc {
  margin: 0;
  font-size: clamp(15px, 1.9vw, 17px);
  line-height: 1.85;
  color: var(--text-dim);
}

/* ── 纵向时间轴长卷 ─────────────────────── */
.page-about .about-trail {
  background:
    linear-gradient(180deg, rgba(44, 74, 78, .10), transparent 34%),
    var(--ink);
}

.page-about .about-trail__list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 32px;
  position: relative;
  display: grid;
  gap: clamp(26px, 4vw, 40px);
}

.page-about .about-trail__list::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg,
      transparent 0%,
      rgba(138, 106, 34, .7) 6%,
      var(--gold) 48%,
      rgba(138, 106, 34, .7) 94%,
      transparent 100%);
  opacity: .6;
}

.page-about .about-node {
  position: relative;
}

.page-about .about-node::before {
  content: "";
  position: absolute;
  left: -32px;
  top: 4px;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  border: 1px solid var(--gold);
  background: var(--ink);
  box-shadow: 0 0 0 4px rgba(201, 162, 76, .10);
  z-index: 1;
}

.page-about .about-node__body {
  padding: clamp(18px, 2.8vw, 26px) clamp(18px, 2.8vw, 28px);
  background: linear-gradient(168deg, var(--ab-panel), var(--ab-panel-2));
  clip-path: polygon(14px 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%, 0 14px);
  box-shadow: var(--shadow-float);
}

.page-about .about-node__when {
  margin: 0 0 8px;
  color: var(--cinnabar-hi);
  letter-spacing: .22em;
}

.page-about .about-node__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(20px, 3.4vw, 30px);
  line-height: 1.3;
  color: var(--gold-hi);
}

.page-about .about-node__text {
  margin: 0;
  font-size: clamp(14.5px, 1.8vw, 16.5px);
  line-height: 1.9;
  color: var(--text-dim);
}

/* ── 内容版图 ───────────────────────────── */
.page-about .about-map {
  background:
    linear-gradient(180deg, rgba(180, 35, 43, .07), transparent 30%),
    var(--ab-panel-2);
}

.page-about .about-map__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}

.page-about .about-card {
  position: relative;
  padding: 22px 20px 24px;
  background: linear-gradient(168deg, #201D1A 0%, var(--ab-panel-2) 100%);
  clip-path: polygon(16px 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%, 0 16px);
  overflow: hidden;
}

.page-about .about-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 2px;
  height: 44px;
  background: linear-gradient(180deg, var(--cinnabar), transparent);
}

.page-about .about-card__idx {
  margin: 0 0 12px;
  color: var(--text-mute);
  letter-spacing: .2em;
}

.page-about .about-card__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(20px, 2.6vw, 24px);
  color: var(--gold-hi);
}

.page-about .about-card__text {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-dim);
}

.page-about .about-card__meta {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--ab-line-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--jade);
}

/* ── 玩法品类 ───────────────────────────── */
.page-about .about-games {
  background: var(--ink);
}

.page-about .about-games__wrap {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-about .about-badges {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.page-about .about-badge {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 66px;
  padding: 10px 6px;
  text-align: center;
  font-family: var(--font-head);
  font-size: clamp(15px, 2.1vw, 18px);
  font-weight: 600;
  color: var(--gold-hi);
  background: linear-gradient(150deg, rgba(201, 162, 76, .14), rgba(27, 25, 23, .95) 62%);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
  transition: transform .22s ease, color .22s ease;
}

.page-about .about-badge::after {
  content: "";
  position: absolute;
  inset: 6px;
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
  border: 1px solid rgba(201, 162, 76, .34);
  pointer-events: none;
}

.page-about .about-badge:hover {
  transform: scale(1.06);
  color: var(--paper);
}

.page-about .about-games__figure {
  position: relative;
  margin: 0;
}

.page-about .about-games__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--ab-line);
  filter: saturate(.94) contrast(1.05);
}

.page-about .about-games__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(115% 105% at 50% 42%, transparent 54%, rgba(0, 0, 0, .6) 100%);
}

.page-about .about-games__figure .img-caption {
  position: relative;
  z-index: 1;
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--text-mute);
}

/* ── 团队分工 ───────────────────────────── */
.page-about .about-team {
  background:
    radial-gradient(90% 70% at 88% 0%, rgba(31, 138, 112, .12), transparent 60%),
    var(--ab-panel-2);
}

.page-about .about-team__wrap {
  display: grid;
  gap: clamp(30px, 5vw, 56px);
  grid-template-columns: 1fr;
}

.page-about .about-team__chart {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}

.page-about .about-ring {
  position: relative;
  width: min(266px, 70vw);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: conic-gradient(
    var(--gold) 0 42.7%,
    var(--cinnabar) 42.7% 65.6%,
    var(--jade) 65.6% 84.4%,
    var(--gold-deep) 84.4% 100%
  );
  display: grid;
  place-items: center;
  filter: drop-shadow(0 14px 30px rgba(0, 0, 0, .8));
}

.page-about .about-ring::after {
  content: "";
  position: absolute;
  inset: 24%;
  border-radius: 50%;
  background: var(--ink);
  border: 1px solid var(--ab-line);
}

.page-about .about-ring__core {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1.1;
}

.page-about .about-ring__num {
  font-family: var(--font-mono);
  font-size: 38px;
  font-weight: 700;
  color: var(--gold-hi);
}

.page-about .about-ring__unit {
  margin-top: 6px;
  color: var(--text-mute);
  letter-spacing: .2em;
}

.page-about .about-legend {
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
  max-width: 340px;
  display: grid;
  gap: 10px;
}

.page-about .about-legend__item {
  display: grid;
  grid-template-columns: 12px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: rgba(13, 12, 11, .6);
  border-left: 2px solid var(--ab-line);
}

.page-about .about-legend__dot {
  width: 10px;
  height: 10px;
  transform: rotate(45deg);
}

.page-about .about-legend__dot--gold { background: var(--gold); }
.page-about .about-legend__dot--red  { background: var(--cinnabar); }
.page-about .about-legend__dot--jade { background: var(--jade); }
.page-about .about-legend__dot--deep { background: var(--gold-deep); }

.page-about .about-legend__name {
  font-size: 15px;
  color: var(--text-dim);
}

.page-about .about-legend__val {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--gold-hi);
}

.page-about .about-team__side {
  display: flex;
  flex-direction: column;
  gap: clamp(22px, 3vw, 32px);
}

.page-about .about-duties {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-duties li {
  padding: 14px 16px;
  background: rgba(13, 12, 11, .5);
  border-left: 2px solid transparent;
  border-image: linear-gradient(180deg, var(--gold), var(--cinnabar)) 1;
  transition: background .22s ease;
}

.page-about .about-duties li:hover {
  background: rgba(27, 25, 23, .9);
}

.page-about .about-duties__title {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 17px;
  color: var(--gold-hi);
}

.page-about .about-duties p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-about .about-team__figure {
  margin: 0;
  position: relative;
}

.page-about .about-team__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--ab-line);
  filter: saturate(.9) contrast(1.05);
}

/* ── 版本 ───────────────────────────────── */
.page-about .about-versions {
  background: var(--ink);
}

.page-about .about-versions__strip {
  margin-bottom: clamp(22px, 3.4vw, 34px);
}

.page-about .about-ver {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--ab-line-soft);
  border-top: 1px solid var(--ab-line);
  border-bottom: 1px solid var(--ab-line);
}

.page-about .about-ver__item {
  position: relative;
  padding: clamp(18px, 2.6vw, 26px) clamp(18px, 2.8vw, 30px) clamp(18px, 2.6vw, 26px) clamp(58px, 7vw, 88px);
  background: linear-gradient(96deg, rgba(27, 25, 23, .96), rgba(13, 12, 11, .96));
  transition: background .24s ease;
}

.page-about .about-ver__item::before {
  content: "";
  position: absolute;
  left: clamp(20px, 2.6vw, 32px);
  top: 50%;
  width: 22px;
  height: 22px;
  margin-top: -11px;
  border-radius: 50%;
  border: 1px solid var(--gold-deep);
  background:
    radial-gradient(circle at 34% 32%, rgba(242, 210, 139, .5), transparent 62%),
    var(--ab-panel-2);
}

.page-about .about-ver__item:hover {
  background: linear-gradient(96deg, rgba(38, 33, 26, .98), rgba(20, 18, 16, .98));
}

.page-about .about-ver__tag {
  margin: 0 0 6px;
  color: var(--jade);
  letter-spacing: .2em;
}

.page-about .about-ver__title {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(18px, 2.6vw, 24px);
  color: var(--gold-hi);
}

.page-about .about-ver__text {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-dim);
}

/* ── 赛事 ───────────────────────────────── */
.page-about .about-league {
  background:
    linear-gradient(180deg, rgba(180, 35, 43, .08), transparent 42%),
    var(--ab-panel-2);
}

.page-about .about-league__wrap {
  display: grid;
  gap: clamp(26px, 4.4vw, 48px);
  grid-template-columns: 1fr;
  align-items: start;
}

.page-about .about-league__note {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--text-dim);
}

.page-about .about-league__figs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--ab-line);
  border: 1px solid var(--ab-line);
}

.page-about .about-league__figs li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 20px;
  background: linear-gradient(150deg, #201D1A, var(--ab-panel-2));
}

.page-about .about-league__num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 4.2vw, 38px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--gold-hi);
  text-shadow: 0 0 20px rgba(242, 210, 139, .22);
}

.page-about .about-league__cap {
  color: var(--text-mute);
}

/* ── 往后 ───────────────────────────────── */
.page-about .about-next {
  background: var(--ink);
}

.page-about .about-next__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}

.page-about .about-next__card {
  position: relative;
  padding: 26px 22px 24px;
  background: linear-gradient(170deg, rgba(44, 74, 78, .22), rgba(13, 12, 11, .96) 70%);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

.page-about .about-next__seal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  margin-bottom: 14px;
  background: linear-gradient(150deg, var(--cinnabar-hi), var(--cinnabar-deep));
  color: var(--paper);
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 700;
  transform: rotate(-4deg);
  box-shadow: 0 6px 16px -8px rgba(180, 35, 43, .9);
}

.page-about .about-next__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(18px, 2.4vw, 22px);
  color: var(--gold-hi);
}

.page-about .about-next__card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-dim);
}

/* ── 底部行动区 ─────────────────────────── */
.page-about .about-cta {
  margin-top: clamp(30px, 5vw, 54px);
  padding: clamp(24px, 3.6vw, 38px) clamp(20px, 3vw, 34px);
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: flex-start;
  border-top: 1px solid var(--ab-line);
  border-bottom: 1px solid var(--ab-line);
  background: linear-gradient(120deg, rgba(201, 162, 76, .10), transparent 58%);
}

.page-about .about-cta__text {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(19px, 3vw, 27px);
  line-height: 1.5;
  color: var(--gold-hi);
}

.page-about .about-cta__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-cta__btn {
  border-bottom: 0;
  text-decoration: none;
}

/* ── 页内目录 ───────────────────────────── */
.page-about .about-toc {
  display: none;
}

.page-about .about-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-about .about-toc__link {
  display: block;
  padding: 5px 12px 5px 10px;
  border-bottom: 0;
  border-left: 1px solid var(--ab-line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--text-mute);
  transition: color .2s ease, border-color .2s ease, padding-left .2s ease;
}

.page-about .about-toc__link:hover {
  color: var(--gold-hi);
  border-left-color: var(--cinnabar);
  padding-left: 14px;
}

/* ── 响应式 ─────────────────────────────── */
@media (min-width: 640px) {
  .page-about .about-hero__figs {
    grid-template-columns: repeat(4, 1fr);
  }

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

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

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

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

@media (min-width: 880px) {
  .page-about .about-games__wrap {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  .page-about .about-team__wrap {
    grid-template-columns: minmax(240px, 320px) 1fr;
    align-items: start;
  }

  .page-about .about-team__chart {
    position: sticky;
    top: 132px;
  }

  .page-about .about-league__wrap {
    grid-template-columns: 1.15fr .85fr;
  }

  .page-about .about-trail__list {
    padding-left: 0;
    grid-template-columns: 1fr 1fr;
    column-gap: var(--ab-trail-gap);
    row-gap: clamp(30px, 4.6vw, 60px);
  }

  .page-about .about-trail__list::before {
    left: 50%;
    top: 14px;
    bottom: 14px;
  }

  .page-about .about-node--a:nth-child(1) { grid-column: 2; grid-row: 1; }
  .page-about .about-node--b:nth-child(2) { grid-column: 1; grid-row: 2; }
  .page-about .about-node--a:nth-child(3) { grid-column: 2; grid-row: 3; }

  .page-about .about-node:nth-child(1)::before,
  .page-about .about-node:nth-child(3)::before {
    left: calc(var(--ab-trail-gap) / -2 - 8.5px);
    top: 6px;
  }

  .page-about .about-node:nth-child(2)::before {
    left: calc(100% + var(--ab-trail-gap) / 2 - 8.5px);
    top: 6px;
  }

  .page-about .about-cta {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

@media (min-width: 1024px) {
  .page-about .about-map__grid {
    grid-template-columns: repeat(4, 1fr);
  }

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

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

@media (min-width: 1280px) {
  .page-about .about-toc {
    display: block;
    position: fixed;
    right: 26px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 6;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-badge,
  .page-about .about-toc__link,
  .page-about .about-duties li {
    transition: none;
  }

  .page-about .about-badge:hover {
    transform: none;
  }
}
<<<END>>>