.page-about {
  --about-edge: 3px;
  --about-glow: radial-gradient(120% 90% at 100% 0%, rgba(25, 247, 210, .12), transparent 62%);
  background: var(--about-glow), var(--ink-900);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: clip;
  padding-bottom: clamp(40px, 7vw, 88px);
}

.page-about section {
  position: relative;
}

.page-about .shell {
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.page-about h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.7rem, 4.6vw, 2.85rem);
  line-height: 1.04;
  letter-spacing: -.01em;
  margin: .45em 0 .55em;
  color: var(--paper);
}

.page-about h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.08rem, 2vw, 1.32rem);
  line-height: 1.2;
  margin: 0 0 .4em;
  color: var(--paper);
}

.page-about p {
  margin: 0 0 1em;
  line-height: 1.75;
  color: #D4DBD6;
}

.page-about .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 .9em;
}

.page-about .lede {
  font-size: clamp(1rem, 1.6vw, 1.12rem);
  line-height: 1.75;
  color: #DDE3DE;
  max-width: 48ch;
}

/* 面包屑 */
.page-about .breadcrumbs {
  padding: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
}

.page-about .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: .4em;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .breadcrumbs li {
  display: flex;
  align-items: center;
  gap: .4em;
  color: var(--grey);
}

.page-about .breadcrumbs li + li::before {
  content: "/";
  color: var(--line);
}

.page-about .breadcrumbs a {
  color: var(--grey);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}

.page-about .breadcrumbs a:hover,
.page-about .breadcrumbs a:focus-visible {
  color: var(--cyan);
  border-bottom-color: currentColor;
}

.page-about .breadcrumbs [aria-current="page"] {
  color: var(--paper);
}

/* 首屏 */
.about-hero {
  padding: clamp(26px, 4.5vw, 52px) 0 clamp(36px, 6vw, 76px);
  border-bottom: 2px solid var(--line);
  overflow: hidden;
}

.about-hero__grid {
  display: grid;
  gap: clamp(30px, 5vw, 56px);
}

.about-hero__copy h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 7.4vw, 4.1rem);
  line-height: .98;
  letter-spacing: -.015em;
  margin: .35em 0 .55em;
  max-width: 16ch;
  text-wrap: balance;
}

.about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(16px, 3vw, 26px);
}

.about-deck {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.about-deck__card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 16px 18px;
  background: var(--paper);
  color: var(--ink-900);
  border: var(--about-edge) solid var(--ink-900);
  box-shadow: var(--shadow-hard);
  transition: transform .22s ease, box-shadow .22s ease;
}

.about-deck__card:nth-child(1) { transform: rotate(-2deg); }
.about-deck__card:nth-child(2) { transform: rotate(1.6deg) translateY(10px); background: var(--ink-700); color: var(--paper); border-color: var(--cyan); }
.about-deck__card:nth-child(3) { transform: rotate(1.2deg) translateY(-4px); background: var(--ink-700); color: var(--paper); border-color: var(--orange); }
.about-deck__card:nth-child(4) { transform: rotate(-1.4deg) translateY(6px); }

.about-deck__card:hover,
.about-deck__card:focus-within {
  transform: rotate(0deg) translateY(-4px);
  box-shadow: var(--shadow-lift);
}

.about-deck__num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.9rem, 5.6vw, 2.7rem);
  line-height: 1;
}

.about-deck__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  opacity: .78;
  line-height: 1.5;
}

/* 通用图片块 */
.about-figure {
  margin: 0;
  border: var(--about-edge) solid var(--line);
  background: var(--ink-700);
  box-shadow: var(--shadow-hard);
}

.about-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(.92) contrast(1.04);
}

.about-figure figcaption {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--grey);
  padding: 10px 12px;
  border-top: 2px solid var(--line);
}

.about-figure--small img {
  aspect-ratio: 4 / 3;
}

/* 团队概览 */
.about-crew {
  padding: clamp(40px, 6.5vw, 84px) 0;
  border-bottom: 1px solid var(--line);
}

.about-crew__grid {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  align-items: start;
}

.about-roles {
  list-style: none;
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.about-roles__item {
  --role-color: var(--cyan);
  background: var(--ink-800);
  border: 2px solid var(--line);
  border-left: 6px solid var(--role-color);
  padding: 15px 16px 12px;
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}

.about-roles__item:nth-child(2) { --role-color: var(--orange); }
.about-roles__item:nth-child(3) { --role-color: var(--lime); }
.about-roles__item:nth-child(4) { --role-color: var(--grey); }

.about-roles__item:hover,
.about-roles__item:focus-within {
  transform: translateX(4px);
  border-color: var(--role-color);
  background: var(--ink-700);
}

.about-roles__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--role-color);
  margin-bottom: .5em;
}

.about-roles__item p {
  margin: 0;
  font-size: .95rem;
  color: #C9D1CC;
}

/* 内容生产流程 */
.about-flow {
  padding: clamp(40px, 6.5vw, 84px) 0;
  background: linear-gradient(180deg, rgba(18, 54, 43, .6) 0%, rgba(10, 14, 13, 0) 72%);
  border-bottom: 1px solid var(--line);
}

.about-flow__intro {
  max-width: 56ch;
}

.about-flow__steps {
  list-style: none;
  margin: clamp(22px, 4vw, 38px) 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.about-flow__step {
  background: var(--ink-800);
  border: 2px solid var(--line);
  border-top: var(--about-edge) solid var(--orange);
  padding: 16px 18px 14px;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.about-flow__step:hover,
.about-flow__step:focus-within {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hard);
  border-color: var(--cyan);
}

.about-flow__num {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.9rem, 4.6vw, 2.6rem);
  line-height: 1;
  color: var(--orange);
  margin-bottom: .3em;
}

.about-flow__step p {
  margin: 0;
  font-size: .95rem;
  color: #C9D1CC;
}

.about-stats {
  list-style: none;
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.about-stats__card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--paper);
  color: var(--ink-900);
  border: var(--about-edge) solid var(--ink-900);
  box-shadow: var(--shadow-hard);
  padding: 16px 18px;
}

.about-stats__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.6rem, 4.4vw, 2.1rem);
  line-height: 1;
  color: var(--ink-800);
}

.about-stats__text {
  font-size: .9rem;
  line-height: 1.6;
  color: #24302B;
}

/* 场馆与版本 */
.about-ops {
  padding: clamp(40px, 6.5vw, 84px) 0;
  border-bottom: 1px solid var(--line);
}

.about-ops__grid {
  display: grid;
  gap: clamp(20px, 3.5vw, 32px);
  margin-top: clamp(18px, 3vw, 30px);
}

.about-ops__block {
  background: var(--ink-800);
  border: 2px solid var(--line);
  padding: clamp(18px, 3vw, 26px);
}

.about-ops__block--venue { border-top: var(--about-edge) solid var(--cyan); }
.about-ops__block--version { border-top: var(--about-edge) solid var(--orange); }

.about-ops__list {
  list-style: none;
  margin: 0 0 clamp(18px, 3vw, 24px);
  padding: 0;
  display: grid;
  gap: 9px;
}

.about-ops__list li {
  position: relative;
  padding-left: 18px;
  font-size: .93rem;
  line-height: 1.65;
  color: #C9D1CC;
}

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

.about-ops__block--version .about-ops__list li::before {
  background: var(--orange);
}

/* 发展历程 */
.about-history {
  padding: clamp(40px, 6.5vw, 84px) 0;
  border-bottom: 1px solid var(--line);
}

.about-history__grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}

.about-history__link {
  margin-top: 6px;
}

.about-timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 24px;
  border-left: 4px solid var(--line);
  display: grid;
  gap: clamp(20px, 3.4vw, 30px);
}

.about-timeline__item {
  position: relative;
  padding: 2px 0 0;
}

.about-timeline__item::before {
  content: "";
  position: absolute;
  left: -33px;
  top: 8px;
  width: 14px;
  height: 14px;
  background: var(--ink-900);
  border: 3px solid var(--cyan);
}

.about-timeline__item:hover::before,
.about-timeline__item:focus-within::before {
  background: var(--cyan);
}

.about-timeline__year {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--ink-900);
  background: var(--paper);
  border: 2px solid var(--ink-900);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, .5);
  padding: 4px 10px;
  margin-bottom: .6em;
  transform: rotate(-2deg);
}

.about-timeline__item h3 {
  margin-bottom: .3em;
}

.about-timeline__item p {
  margin: 0;
  font-size: .95rem;
  color: #C9D1CC;
  max-width: 52ch;
}

/* 协作生态 */
.about-partners {
  padding: clamp(40px, 6.5vw, 84px) 0;
  background: linear-gradient(200deg, rgba(18, 54, 43, .55) 0%, rgba(10, 14, 13, 0) 70%);
  border-bottom: 1px solid var(--line);
}

.about-partners__grid {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  align-items: start;
}

.about-plaques {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.about-plaque {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--paper);
  color: var(--ink-900);
  border: var(--about-edge) solid var(--ink-900);
  box-shadow: var(--shadow-hard);
  padding: 20px 22px;
  transition: transform .2s ease, box-shadow .2s ease;
}

.about-plaque:nth-child(2) {
  background: var(--ink-700);
  color: var(--paper);
  border-color: var(--orange);
}

.about-plaque:hover,
.about-plaque:focus-within {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
}

.about-plaque__num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.2rem, 6vw, 3rem);
  line-height: 1;
}

.about-plaque__text {
  font-size: .92rem;
  line-height: 1.6;
}

/* 荣誉与质量 */
.about-trust {
  padding: clamp(40px, 6.5vw, 84px) 0;
  border-bottom: 2px solid var(--line);
}

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

.about-award {
  background: var(--ink-800);
  border: var(--about-edge) solid var(--orange);
  box-shadow: var(--shadow-hard);
  padding: clamp(20px, 3.5vw, 30px);
}

.about-award__year {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--ink-900);
  background: var(--orange);
  padding: 4px 10px;
  margin-bottom: 1em;
}

.about-award__text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.15rem, 2.4vw, 1.5rem);
  line-height: 1.35;
  color: var(--paper);
  margin: 0 0 .7em;
}

.about-award__note {
  margin: 0;
  font-size: .9rem;
  line-height: 1.7;
  color: var(--grey);
}

.about-checks {
  list-style: none;
  margin: clamp(16px, 3vw, 24px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.about-checks__item {
  border-left: 4px solid var(--cyan);
  background: rgba(18, 54, 43, .55);
  padding: 12px 16px;
}

.about-checks__item h3 {
  font-size: 1.05rem;
  margin-bottom: .3em;
}

.about-checks__item p {
  margin: 0;
  font-size: .93rem;
  color: #C9D1CC;
}

/* 行动区 */
.about-cta {
  padding: clamp(36px, 6vw, 72px) 0 0;
}

.about-cta__inner {
  display: grid;
  gap: clamp(20px, 3.5vw, 34px);
  align-items: center;
  background: linear-gradient(115deg, var(--ink-800) 0%, var(--ink-700) 58%, var(--ink-900) 100%);
  border: var(--about-edge) solid var(--line);
  box-shadow: var(--shadow-hard);
  padding: clamp(22px, 4vw, 40px);
}

.about-cta__inner h2 {
  margin-top: 0;
}

.about-cta__inner p {
  margin: 0;
  max-width: 52ch;
}

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

/* 平板与桌面 */
@media (min-width: 720px) {
  .about-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .about-trust__grid {
    grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
  }
}

@media (min-width: 900px) {
  .about-hero__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: end;
  }

  .about-deck {
    gap: 18px;
  }

  .about-flow__steps {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .about-flow__step:nth-child(1) { grid-column: 1 / span 6; }
  .about-flow__step:nth-child(2) { grid-column: 8 / span 5; }
  .about-flow__step:nth-child(3) { grid-column: 1 / span 5; }
  .about-flow__step:nth-child(4) { grid-column: 7 / span 6; }
  .about-flow__step:nth-child(5) { grid-column: 3 / span 8; }

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

  .about-cta__inner {
    grid-template-columns: minmax(0, 1fra) auto;
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

@media (min-width: 960px) {
  .about-crew__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

  .about-crew__copy {
    order: 0;
  }

  .about-figure {
    position: sticky;
    top: 104px;
  }

  .about-history__grid {
    grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr);
  }

  .about-history__head {
    position: sticky;
    top: 104px;
  }

  .about-partners__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-deck__card,
  .page-about .about-roles__item,
  .page-about .about-flow__step,
  .page-about .about-plaque {
    transition: none;
  }

  .page-about .about-deck__card:hover,
  .page-about .about-deck__card:focus-within,
  .page-about .about-roles__item:hover,
  .page-about .about-roles__item:focus-within,
  .page-about .about-flow__step:hover,
  .page-about .about-flow__step:focus-within,
  .page-about .about-plaque:hover,
  .page-about .about-plaque:focus-within {
    transform: none;
  }
}
<<<END>>>