.page-about {
  --about-top: calc(var(--header-h-compact) + 32px);
  background: var(--ink);
  color: var(--paper);
  overflow-x: clip;
  padding-bottom: var(--quickbar-h);
}

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

/* 面包屑 */
.page-about .about-crumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--muted);
}
.page-about .about-crumb a {
  color: var(--muted);
  text-decoration: none;
}
.page-about .about-crumb a:hover {
  color: var(--volt);
}

/* 首屏 */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(92px, 13vw, 148px) 0 clamp(42px, 6vw, 72px);
  background:
    radial-gradient(920px 520px at 86% -12%, rgba(200, 16, 46, .38), transparent 62%),
    radial-gradient(760px 460px at 0% 4%, rgba(47, 107, 255, .18), transparent 68%),
    linear-gradient(190deg, #0B0C0F 0%, #14161D 58%, #0B0C0F 100%);
}
.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: -10% -5%;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(78deg, rgba(244, 237, 227, .06) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(12deg, rgba(244, 237, 227, .05) 0 1px, transparent 1px 118px);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), transparent 82%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), transparent 82%);
}
.page-about .about-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 36px);
  margin-top: clamp(22px, 4vw, 40px);
}
.page-about .about-hero__year {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
}
.page-about .about-hero__year em {
  font-style: normal;
  color: var(--red);
}
.page-about .about-hero__sub {
  margin: 12px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--red);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}
.page-about .about-hero h1 {
  margin: 0 0 clamp(16px, 2vw, 24px);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.1rem, 5.6vw, 4.4rem);
  line-height: 1.06;
  letter-spacing: -.02em;
  max-width: 14em;
}
.page-about .about-hero__p {
  margin: 0 0 14px;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.8;
  color: rgba(244, 237, 227, .8);
  max-width: 34em;
}
.page-about .about-hero__p:last-child {
  margin-bottom: 0;
  color: rgba(244, 237, 227, .62);
}

/* 首屏数据带 */
.page-about .about-stats {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: clamp(34px, 6vw, 62px);
  border-top: 1px solid var(--line-strong);
}
.page-about .about-stats__cell {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 14px 16px 0;
  border-bottom: 1px solid var(--line);
}
.page-about .about-stats__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.6rem, 3.4vw, 2.2rem);
  font-weight: 700;
  line-height: 1;
  color: var(--volt);
}
.page-about .about-stats__label {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--muted);
}

/* 区块节奏 */
.page-about .about-sec {
  padding: clamp(56px, 8vw, 104px) 0;
}
.page-about .about-paper {
  background: var(--paper);
  color: var(--paper-ink);
}
.page-about .about-dark {
  background: var(--charcoal);
}
.page-about .about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 56px);
}
.page-about .about-head {
  max-width: 42em;
}
.page-about .about-head__lede {
  margin: 12px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(244, 237, 227, .7);
}
.page-about .about-h2 {
  margin: 10px 0 clamp(14px, 2vw, 20px);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 3.4vw, 2.5rem);
  line-height: 1.14;
  letter-spacing: -.01em;
}
.page-about .about-body p {
  margin: 0 0 18px;
  font-size: 17px;
  line-height: 1.82;
  max-width: 36em;
}
.page-about .about-body p:last-child {
  margin-bottom: 0;
}
.page-about .about-body__more {
  font-size: 15px !important;
  padding-top: 4px;
}
.page-about .about-paper a {
  color: var(--red-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-about .about-paper a:hover {
  color: var(--red);
}
.page-about .about-eyebrow-ink {
  color: #6C6459;
}

/* 粘性窄注 */
.page-about .about-note {
  align-self: start;
  padding: 20px;
  background: var(--ink);
  color: var(--paper);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}
.page-about .about-note__list {
  margin: 14px 0 0;
  display: grid;
  gap: 12px;
}
.page-about .about-note__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--line);
}
.page-about .about-note__row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}
.page-about .about-note dt {
  font-size: 12px;
  color: var(--muted);
}
.page-about .about-note dd {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 20px;
  color: var(--volt);
}
.page-about .about-note dd i {
  font-style: normal;
  font-size: 13px;
}
.page-about .about-note__foot {
  margin: 16px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: rgba(244, 237, 227, .55);
}

/* 团队 */
.page-about .about-team__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 52px);
  margin-top: clamp(24px, 4vw, 40px);
}
.page-about .about-roles {
  margin: 0;
  display: grid;
  gap: 20px;
}
.page-about .about-roles__item {
  padding-left: 16px;
  border-left: 2px solid var(--red);
}
.page-about .about-roles dt {
  margin-bottom: 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
}
.page-about .about-roles dd {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(244, 237, 227, .76);
}

/* 图像容器 */
.page-about .about-media {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--charcoal-2);
}
.page-about .about-media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}
.page-about .about-media--34 {
  aspect-ratio: 3 / 2;
}
.page-about .about-media--45 {
  aspect-ratio: 4 / 5;
}
.page-about .about-media--clip {
  clip-path: polygon(22px 0, 100% 0, 100% 100%, 0 100%, 0 22px);
}
.page-about .about-media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(150deg, rgba(200, 16, 46, .22), rgba(11, 12, 15, .5));
}

/* 赛后流程 */
.page-about .about-flow {
  list-style: none;
  margin: clamp(22px, 4vw, 38px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}
.page-about .about-flow__step {
  position: relative;
  padding: 20px 0 18px;
  border-top: 1px solid rgba(20, 22, 27, .14);
}
.page-about .about-flow__step::before {
  content: "";
  position: absolute;
  left: 0;
  top: -2px;
  width: 28px;
  height: 4px;
  background: var(--red);
}
.page-about .about-flow__t {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--red);
}
.page-about .about-flow__step h3 {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
}
.page-about .about-flow__step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: #4A4741;
}
.page-about .about-flow__foot {
  margin: clamp(22px, 3vw, 32px) 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: #4A4741;
  max-width: 40em;
}

/* 线下观赛横图 */
.page-about .about-banner {
  position: relative;
  background: var(--ink);
}
.page-about .about-banner__media {
  position: relative;
  overflow: hidden;
}
.page-about .about-banner__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}
.page-about .about-banner__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(11, 12, 15, .2) 0%, rgba(200, 16, 46, .5) 62%, rgba(11, 12, 15, .92) 100%);
}
.page-about .about-banner__body {
  position: relative;
  z-index: 1;
  padding-top: clamp(24px, 4vw, 42px);
  padding-bottom: clamp(52px, 7vw, 92px);
}
.page-about .about-banner__body p {
  margin: 0 0 16px;
  font-size: 16.5px;
  line-height: 1.82;
  color: rgba(244, 237, 227, .8);
  max-width: 40em;
}

/* 时间线折叠 */
.page-about .about-timeline {
  margin-top: clamp(20px, 3vw, 34px);
  border-top: 1px solid var(--line);
}
.page-about .about-tl {
  border-bottom: 1px solid var(--line);
}
.page-about .about-tl__btn {
  display: grid;
  grid-template-columns: 16px minmax(0, 1fr) 18px;
  grid-template-rows: auto auto;
  gap: 2px 12px;
  align-items: start;
  width: 100%;
  padding: 18px 0;
  background: none;
  border: 0;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}
.page-about .about-tl__node {
  grid-column: 1;
  grid-row: 1 / span 2;
  width: 14px;
  height: 14px;
  margin-top: 4px;
  background: var(--red);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%);
  transition: background .2s var(--ease);
}
.page-about .about-tl__season {
  grid-column: 2;
  grid-row: 1;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--muted);
}
.page-about .about-tl__title {
  grid-column: 2;
  grid-row: 2;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.4;
  transition: color .2s var(--ease);
}
.page-about .about-tl__icon {
  grid-column: 3;
  grid-row: 1 / span 2;
  align-self: center;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg);
  transition: transform .3s var(--ease), border-color .2s var(--ease);
}
.page-about .about-tl__btn:hover .about-tl__title {
  color: var(--volt);
}
.page-about .about-tl__btn[aria-expanded="true"] .about-tl__node {
  background: var(--volt);
}
.page-about .about-tl__btn[aria-expanded="true"] .about-tl__icon {
  transform: rotate(-135deg);
  border-color: var(--volt);
}
.page-about .about-timeline .accordion__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .34s var(--ease);
}
.page-about .about-timeline .accordion__panel[data-open="true"] {
  grid-template-rows: 1fr;
}
.page-about .about-timeline .accordion__inner {
  overflow: hidden;
}
.page-about .about-tl__inner {
  padding: 0 0 22px;
}
.page-about .about-tl__inner p {
  margin: 0 0 12px;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(244, 237, 227, .76);
  max-width: 42em;
}
.page-about .about-tl__inner p:last-child {
  margin-bottom: 0;
}

/* 合作与认可 */
.page-about .about-partner__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 56px);
  align-items: center;
}
.page-about .about-partner__list {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 18px;
}
.page-about .about-partner__list li {
  display: grid;
  gap: 5px;
  padding-left: 16px;
  border-left: 3px solid var(--red);
}
.page-about .about-partner__list strong {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
}
.page-about .about-partner__list span {
  font-size: 15.5px;
  line-height: 1.78;
  color: #4A4741;
}
.page-about .about-partner__cta {
  margin: 0;
}
.page-about .about-partner__figure {
  margin: 0;
}

/* 收尾行动区 */
.page-about .about-cta {
  position: relative;
  overflow: hidden;
  padding: clamp(48px, 7vw, 88px) 0;
  background: var(--red);
  color: #fff;
}
.page-about .about-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(120deg, rgba(122, 10, 28, .92) 0%, rgba(122, 10, 28, .25) 55%, transparent 80%);
}
.page-about .about-cta__inner {
  position: relative;
}
.page-about .about-cta .eyebrow {
  color: rgba(255, 255, 255, .78);
}
.page-about .about-cta .eyebrow::before {
  background: var(--volt);
}
.page-about .about-cta h2 {
  margin: 12px 0 clamp(20px, 3vw, 28px);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.7rem, 4vw, 2.7rem);
  line-height: 1.14;
  letter-spacing: -.01em;
}
.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-about .about-cta__ghost {
  border-color: rgba(255, 255, 255, .7);
  color: #fff;
}
.page-about .about-cta__ghost:hover {
  border-color: var(--volt);
  color: var(--volt);
}
.page-about .about-cta__links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
}
.page-about .about-cta__links a {
  color: rgba(255, 255, 255, .88);
  font-size: 14px;
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(255, 255, 255, .38);
}
.page-about .about-cta__links a:hover {
  color: #fff;
  border-color: var(--volt);
}

/* 桌面栅格 */
@media (min-width: 780px) {
  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .about-stats__cell {
    padding: 18px 18px 18px;
    border-bottom: 0;
    border-left: 1px solid var(--line);
  }
  .page-about .about-stats__cell:first-child {
    padding-left: 0;
    border-left: 0;
  }
  .page-about .about-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-top: 1px solid rgba(20, 22, 27, .18);
  }
  .page-about .about-flow__step {
    padding: 24px 20px 0 0;
    border-top: 0;
    border-right: 1px solid rgba(20, 22, 27, .12);
  }
  .page-about .about-flow__step:last-child {
    padding-right: 0;
    border-right: 0;
  }
  .page-about .about-flow__step::before {
    top: -2px;
  }
  .page-about .about-tl__btn {
    grid-template-columns: 16px 132px minmax(0, 1fr) 18px;
    grid-template-rows: auto;
    align-items: center;
    padding: 20px 0;
  }
  .page-about .about-tl__node {
    grid-row: 1;
    margin-top: 0;
  }
  .page-about .about-tl__season {
    grid-column: 2;
    grid-row: 1;
  }
  .page-about .about-tl__title {
    grid-column: 3;
    grid-row: 1;
  }
  .page-about .about-tl__icon {
    grid-column: 4;
    grid-row: 1;
  }
  .page-about .about-tl__inner {
    padding-left: 148px;
  }
  .page-about .about-banner__media img {
    aspect-ratio: 14 / 6;
  }
}

@media (min-width: 940px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    align-items: end;
  }
  .page-about .about-grid {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
  }
  .page-about .about-note {
    position: sticky;
    top: var(--about-top);
  }
  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
  .page-about .about-partner__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-timeline .accordion__panel,
  .page-about .about-tl__icon,
  .page-about .about-tl__node,
  .page-about .about-tl__title {
    transition: none;
  }
}
<<<END>>>