.page-about {
  --about-paper-ink: #201A17;
  --about-paper-line: rgba(32, 26, 23, .14);
}

.page-about h2 {
  color: #fff;
}

.page-about .section--paper h2 {
  color: var(--brown);
}

/* ============ 首屏 ============ */

.page-about .about-hero {
  position: relative;
  padding: clamp(96px, 15vw, 172px) 0 0;
  overflow: hidden;
  background:
    radial-gradient(130% 96% at 8% -8%, rgba(106, 61, 245, .44), transparent 62%),
    radial-gradient(88% 72% at 98% 4%, rgba(255, 106, 43, .22), transparent 58%),
    var(--ink-900);
}

.page-about .about-hero__text {
  margin-top: clamp(20px, 3vw, 32px);
  max-width: 62ch;
}

.page-about .about-hero h1 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(31px, 7.2vw, 62px);
  line-height: 1.07;
  letter-spacing: -.01em;
  color: #fff;
  text-wrap: balance;
}

.page-about .about-hero .lede {
  margin-top: 18px;
  max-width: 58ch;
  color: var(--text);
}

.page-about .about-hero__facts {
  list-style: none;
  margin: clamp(28px, 4.4vw, 46px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-about .about-hero__facts li {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius-sm);
  background: rgba(10, 15, 38, .58);
}

.page-about .about-hero__num {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(28px, 5.2vw, 42px);
  line-height: 1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-about .about-hero__num em {
  font-style: normal;
  font-size: .4em;
  margin-left: 5px;
  color: var(--haze);
}

.page-about .about-hero__fact {
  display: block;
  margin-top: 9px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--haze);
}

.page-about .about-hero__band {
  margin-top: clamp(42px, 7vw, 76px);
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 6px;
}

.page-about .about-hero__band span {
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, rgba(106, 61, 245, .18), var(--violet));
}

.page-about .about-hero__band span:nth-child(2n) {
  background: linear-gradient(90deg, var(--violet), var(--orange));
}

.page-about .about-hero__band span:nth-child(5) {
  background: linear-gradient(90deg, var(--orange), var(--gold));
}

.page-about .about-hero__band span:last-child {
  background: linear-gradient(90deg, var(--gold), var(--cyan));
}

/* ============ 通用小标题组 ============ */

.page-about .about-head {
  max-width: 64ch;
  margin-bottom: clamp(26px, 4vw, 46px);
}

.page-about .about-head h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(25px, 4.4vw, 44px);
  line-height: 1.12;
  letter-spacing: -.005em;
}

.page-about .about-head .lede {
  margin-top: 14px;
  color: var(--haze);
}

.page-about .section--paper .about-head .lede {
  color: rgba(32, 26, 23, .72);
}

/* ============ 起点 ============ */

.page-about .about-origin__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-about .about-origin__head h2 {
  margin: 10px 0 0;
  font-family: var(--font-index);
  font-size: clamp(25px, 4.2vw, 38px);
  line-height: 1.28;
}

.page-about .about-origin__body p + p {
  margin-top: 16px;
}

/* ============ 团队四象限 ============ */

.page-about .about-team__media {
  margin: 0 0 clamp(26px, 4vw, 44px);
}

.page-about .about-quad {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-about .about-quad .accordion__item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(155deg, rgba(27, 36, 80, .88), rgba(10, 15, 38, .96));
  overflow: hidden;
  transition: transform .18s var(--ease), border-color .18s var(--ease);
}

.page-about .about-quad .accordion__item:hover,
.page-about .about-quad .accordion__item:focus-within {
  transform: translateY(-4px);
  border-color: var(--violet-soft);
}

.page-about .about-quad .accordion__trigger {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "num name"
    "num line";
  gap: 5px 16px;
  width: 100%;
  padding: 20px;
  border: 0;
  background: none;
  text-align: left;
  color: inherit;
  font: inherit;
  cursor: pointer;
}

.page-about .about-quad__no {
  grid-area: num;
  align-self: start;
  font-family: var(--font-num);
  font-size: 22px;
  line-height: 1.15;
  color: var(--violet-soft);
  font-variant-numeric: tabular-nums;
}

.page-about .about-quad__name {
  grid-area: name;
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1.3;
  color: #fff;
}

.page-about .about-quad__line {
  grid-area: line;
  font-size: 14px;
  line-height: 1.65;
  color: var(--haze);
}

.page-about .about-quad .accordion__panel {
  padding: 0 20px 20px;
}

.page-about .about-quad .accordion__panel p {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

/* ============ 服务范围 ============ */

.page-about .about-reach__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  align-items: start;
}

.page-about .about-map {
  position: relative;
  aspect-ratio: 1 / 1;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background:
    radial-gradient(circle at 62% 42%, rgba(106, 61, 245, .34), transparent 68%),
    var(--ink-900);
}

.page-about .about-map::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(169, 139, 255, .09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(169, 139, 255, .09) 1px, transparent 1px);
  background-size: 40px 40px;
}

.page-about .about-map__pin {
  position: absolute;
  width: 44px;
  height: 44px;
  transform: translate(-50%, -50%);
  display: grid;
  place-items: center;
  outline: none;
}

.page-about .about-map__pin::before {
  content: "";
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(33, 230, 193, .16), 0 0 18px rgba(33, 230, 193, .6);
  transition: background .18s var(--ease), box-shadow .18s var(--ease);
}

.page-about .about-map__pin:hover::before,
.page-about .about-map__pin:focus-visible::before {
  background: var(--gold);
  box-shadow: 0 0 0 5px rgba(255, 197, 61, .2), 0 0 22px rgba(255, 197, 61, .7);
}

.page-about .about-map__pin:nth-child(1) { left: 60%; top: 22%; }
.page-about .about-map__pin:nth-child(2) { left: 74%; top: 40%; }
.page-about .about-map__pin:nth-child(3) { left: 58%; top: 64%; }
.page-about .about-map__pin:nth-child(4) { left: 34%; top: 54%; }
.page-about .about-map__pin:nth-child(5) { left: 82%; top: 62%; }

.page-about .about-map__label {
  position: absolute;
  left: 50%;
  top: calc(100% - 4px);
  transform: translate(-50%, 4px);
  padding: 3px 9px;
  border: 1px solid var(--cyan);
  border-radius: 999px;
  background: var(--ink-900);
  color: var(--cyan);
  font-size: 12px;
  line-height: 1.4;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s var(--ease), transform .18s var(--ease);
}

.page-about .about-map__pin:hover .about-map__label,
.page-about .about-map__pin:focus-visible .about-map__label {
  opacity: 1;
  transform: translate(-50%, 0);
}

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

.page-about .about-reach__list li {
  padding: 15px 17px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: rgba(10, 15, 38, .5);
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}

.page-about .about-reach__list strong {
  margin-right: 6px;
  font-family: var(--font-num);
  font-size: 19px;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

/* ============ 版本与适配 ============ */

.page-about .about-tech__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 15px;
}

.page-about .about-tech__card {
  position: relative;
  padding: 22px 22px 24px 26px;
  border: 1px solid var(--about-paper-line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .52);
  box-shadow: 5px 5px 0 rgba(106, 61, 245, .14);
}

.page-about .about-tech__card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 3px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--violet), var(--orange));
}

.page-about .about-tech__label {
  display: inline-block;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--violet);
}

.page-about .about-tech__num {
  margin: 10px 0 0;
  font-family: var(--font-num);
  font-size: clamp(30px, 5vw, 40px);
  line-height: 1;
  color: var(--brown);
  font-variant-numeric: tabular-nums;
}

.page-about .about-tech__num em {
  font-style: normal;
  font-size: .38em;
  margin-left: 5px;
  color: rgba(32, 26, 23, .55);
}

.page-about .about-tech__card h3 {
  margin: 14px 0 8px;
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--brown);
}

.page-about .about-tech__card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(32, 26, 23, .76);
}

.page-about .about-tech__note {
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 15px 18px;
  border-left: 3px solid var(--orange);
  border-radius: var(--radius-sm);
  background: rgba(255, 106, 43, .1);
  font-size: 14px;
  line-height: 1.75;
  color: rgba(32, 26, 23, .82);
}

/* ============ 历程 ============ */

.page-about .about-history {
  position: relative;
  overflow: hidden;
  background: var(--ink-900);
}

.page-about .about-history__bg {
  position: absolute;
  inset: 0;
  margin: 0;
  z-index: 0;
}

.page-about .about-history__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .3;
}

.page-about .about-history::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(10, 15, 38, .84), rgba(10, 15, 38, .95));
}

.page-about .about-history .wrap {
  position: relative;
  z-index: 2;
}

.page-about .about-timeline {
  list-style: none;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0 0 0 32px;
  position: relative;
  display: grid;
  gap: clamp(18px, 3vw, 28px);
  max-width: 70ch;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--gold), rgba(255, 197, 61, .1));
}

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

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -32px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 5px rgba(255, 197, 61, .14), 0 0 18px rgba(255, 197, 61, .55);
}

.page-about .about-timeline__date {
  display: inline-block;
  font-family: var(--font-num);
  font-size: 14px;
  letter-spacing: .06em;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-about .about-timeline__item h3 {
  margin: 7px 0 6px;
  font-family: var(--font-index);
  font-size: clamp(18px, 2.6vw, 22px);
  line-height: 1.4;
  color: #fff;
}

.page-about .about-timeline__item p {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--haze);
}

/* ============ 赛事生态 ============ */

.page-about .about-league__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: start;
}

.page-about .about-league__main h2 {
  margin: 10px 0 18px;
  font-family: var(--font-display);
  font-size: clamp(25px, 4.2vw, 40px);
  line-height: 1.14;
}

.page-about .about-league__main .prose p + p {
  margin-top: 16px;
}

.page-about .about-league__main .path-link {
  display: inline-block;
  margin-top: 22px;
}

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

/* ============ 线下体验点 ============ */

.page-about .about-venues__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: start;
}

.page-about .about-venues__main h2 {
  margin: 10px 0 18px;
  font-family: var(--font-display);
  font-size: clamp(25px, 4.2vw, 40px);
  line-height: 1.14;
}

.page-about .about-venues__main .prose p + p {
  margin-top: 16px;
}

.page-about .about-venues__main .tagwall {
  margin-top: 22px;
}

.page-about .about-venues__main .path-link {
  display: inline-block;
  margin-top: 22px;
}

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

.page-about .about-venues__panel li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
}

.page-about .about-venues__panel li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--cyan);
}

/* ============ 为什么留得下来 ============ */

.page-about .about-why__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-about .about-why__list li {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(27, 36, 80, .72), rgba(10, 15, 38, .88));
  transition: transform .18s var(--ease), border-color .18s var(--ease);
}

.page-about .about-why__list li:hover {
  transform: translateY(-4px);
  border-color: var(--violet);
}

.page-about .about-why__no {
  display: block;
  font-family: var(--font-num);
  font-size: 15px;
  letter-spacing: .08em;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-about .about-why__list h3 {
  margin: 10px 0 8px;
  font-family: var(--font-index);
  font-size: 19px;
  line-height: 1.45;
  color: #fff;
}

.page-about .about-why__list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--haze);
}

.page-about .about-why__cta {
  margin: clamp(24px, 3.4vw, 34px) 0 0;
}

/* ============ 目录收束 ============ */

.page-about .about-next__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-about .about-next__grid .card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform .18s var(--ease), box-shadow .18s var(--ease);
}

.page-about .about-next__grid .card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-paper), 0 0 0 2px rgba(169, 139, 255, .7);
}

.page-about .about-next__grid h3 {
  margin: 0;
  font-family: var(--font-index);
  font-size: 18px;
  line-height: 1.5;
}

.page-about .about-next__grid .path-link {
  margin-top: auto;
  color: var(--violet);
}

/* ============ 响应式 ============ */

@media (min-width: 560px) {
  .page-about .about-map {
    aspect-ratio: 4 / 3;
  }
}

@media (min-width: 640px) {
  .page-about .about-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

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

@media (min-width: 700px) {
  .page-about .about-why__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }
}

@media (min-width: 760px) {
  .page-about .about-tech__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

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

@media (min-width: 900px) {
  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.5fr);
    gap: clamp(34px, 5vw, 68px);
    align-items: start;
  }

  .page-about .about-reach__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 40px;
  }

  .page-about .about-league__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
    gap: 44px;
  }

  .page-about .about-venues__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr);
    gap: 44px;
  }
}

@media (min-width: 1040px) {
  .page-about .about-next__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-quad {
    gap: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-quad .accordion__item,
  .page-about .about-why__list li,
  .page-about .about-next__grid .card,
  .page-about .about-map__pin::before,
  .page-about .about-map__label {
    transition: none;
  }

  .page-about .about-quad .accordion__item:hover,
  .page-about .about-quad .accordion__item:focus-within,
  .page-about .about-why__list li:hover,
  .page-about .about-next__grid .card:hover {
    transform: none;
  }
}
<<<PAGE_CSS_END>>>