.page-about {
  --about-line: rgba(140, 147, 168, .22);
  background: var(--ink);
  color: var(--paper);
  overflow-x: hidden;
}

.page-about [id] {
  scroll-margin-top: 96px;
}

.page-about h2 {
  margin: 12px 0 0;
}

.page-about h2 + .prose {
  margin-top: 20px;
}

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

/* ============ 侧边阅读进度 ============ */
.page-about .about-rail {
  display: none;
}

@media (min-width: 1360px) {
  .page-about .about-rail {
    display: block;
    position: fixed;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 6;
  }

  .page-about .about-rail .scroll-rail__list {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin: 0;
    padding: 0;
    list-style: none;
  }

  .page-about .about-rail .scroll-rail__link {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--stone);
  }

  .page-about .about-rail .scroll-rail__dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--stone);
    transition: background .25s ease, transform .25s ease;
  }

  .page-about .about-rail .about-rail__text {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: .16em;
    opacity: .55;
    transition: opacity .25s ease;
  }

  .page-about .about-rail .scroll-rail__link:hover .about-rail__text,
  .page-about .about-rail .scroll-rail__link.is-active .about-rail__text {
    opacity: 1;
  }

  .page-about .about-rail .scroll-rail__link.is-active .scroll-rail__dot {
    background: var(--cyan);
    transform: scale(1.6);
  }
}

/* ============ 首屏 ============ */
.page-about .about-hero {
  position: relative;
  padding: 92px 0 62px;
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -34%;
  right: -20%;
  width: min(760px, 92%);
  height: min(760px, 132%);
  background: radial-gradient(circle at 50% 50%, rgba(108, 43, 217, .55), rgba(0, 229, 255, .08) 46%, transparent 72%);
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: -6%;
  right: -6%;
  bottom: 16px;
  height: 2px;
  background: var(--neon);
  transform: rotate(-2.4deg);
  pointer-events: none;
}

.page-about .about-hero > .container {
  position: relative;
  z-index: 1;
}

.page-about .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 30px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--stone);
}

.page-about .breadcrumb__link {
  color: var(--stone);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .25s ease, border-color .25s ease;
}

.page-about .breadcrumb__link:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-about .breadcrumb__current {
  color: var(--paper);
}

.page-about .about-hero__grid {
  display: grid;
  gap: 30px;
}

.page-about .about-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 62px);
  line-height: 1.1;
  letter-spacing: -.015em;
  max-width: 14em;
  color: var(--paper);
}

.page-about .about-hero__aside {
  position: relative;
  padding-left: 20px;
}

.page-about .about-hero__aside::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 3px;
  background: var(--neon);
  transform: skewY(-6deg);
}

.page-about .about-hero__aside .lede {
  margin: 0;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--paper);
  max-width: 34em;
}

.page-about .about-hero__note {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--stone);
  max-width: 34em;
}

.page-about .about-hero__stats {
  margin-top: 52px;
  padding-top: 24px;
  border-top: 1px solid var(--about-line);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px 18px;
}

.page-about .about-hero__stats .stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .about-hero__stats .stat__value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-about .about-hero__stats .stat:first-child .stat__value {
  color: var(--yellow);
}

.page-about .about-hero__stats .stat__label {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--stone);
}

@media (min-width: 760px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: end;
  }
}

/* ============ 缘起：窄栏长文 ============ */
.page-about .about-origin__grid {
  display: grid;
  gap: 36px;
  align-items: start;
}

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

.page-about .about-origin__text .prose {
  max-width: 34em;
}

.page-about .about-origin__text .prose p {
  margin: 0 0 1.1em;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--stone);
}

.page-about .about-origin__text .prose p:first-child {
  color: var(--paper);
}

@media (min-width: 960px) {
  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 68px;
    align-items: center;
  }
}

/* ============ 能力演进：全宽斜切时间线 ============ */
.page-about .about-timeline {
  position: relative;
  padding: 84px 0 70px;
  background: linear-gradient(180deg, var(--deep) 0%, var(--ink) 100%);
  overflow: hidden;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: -22%;
  right: -22%;
  top: 44%;
  height: 160px;
  background: linear-gradient(90deg, rgba(108, 43, 217, .22), rgba(0, 229, 255, .10));
  transform: rotate(-5.5deg);
  pointer-events: none;
}

.page-about .about-timeline__head {
  position: relative;
  z-index: 1;
}

.page-about .about-timeline__lede {
  max-width: 34em;
  margin-top: 18px;
  color: var(--stone);
}

.page-about .about-timeline__rail {
  position: relative;
  z-index: 1;
  height: 22px;
  margin: 34px 0 -4px;
  padding: 0 var(--gutter);
}

.page-about .about-timeline__rail svg {
  display: block;
  width: 100%;
  height: 22px;
}

.page-about .about-timeline__track {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 16px;
  margin: 0;
  padding: 12px var(--gutter) 22px;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--stone) transparent;
}

.page-about .about-node {
  position: relative;
  flex: 0 0 auto;
  width: 268px;
  padding: 22px 20px 24px;
  background: linear-gradient(158deg, #1B2233 0%, #121726 100%);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
  scroll-snap-align: start;
  transition: transform .3s ease, filter .3s ease;
}

.page-about .about-node:hover,
.page-about .about-node:focus-within {
  transform: translate(4px, -4px);
  filter: drop-shadow(0 0 14px rgba(0, 229, 255, .3));
}

.page-about .about-node__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 42px;
  line-height: 1;
  color: rgba(140, 147, 168, .34);
  transition: color .3s ease;
}

.page-about .about-node:hover .about-node__num,
.page-about .about-node:focus-within .about-node__num {
  color: var(--cyan);
}

.page-about .about-node .tag {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
}

.page-about .about-node__title {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.35;
  color: var(--paper);
}

.page-about .about-node__desc {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.68;
  color: var(--stone);
}

.page-about .about-node__more {
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid rgba(140, 147, 168, .16);
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--stone);
  opacity: .8;
  transition: opacity .3s ease, color .3s ease;
}

.page-about .about-node:hover .about-node__more,
.page-about .about-node:focus-within .about-node__more {
  opacity: 1;
  color: var(--paper);
}

/* ============ 团队 ============ */
.page-about .about-teams__head {
  max-width: 46em;
}

.page-about .about-teams__head .lede {
  margin-top: 16px;
  color: var(--stone);
  max-width: 34em;
}

.page-about .about-teams__grid {
  display: grid;
  gap: 18px;
  margin-top: 42px;
}

.page-about .about-team {
  position: relative;
  padding: 26px 20px 24px;
  background: rgba(11, 14, 20, .74);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
  transition: background .3s ease;
}

.page-about .about-team::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  background: var(--cyan);
}

.page-about .about-team:nth-child(1)::before {
  background: var(--clay);
}

.page-about .about-team:nth-child(2)::before {
  background: var(--cyan);
}

.page-about .about-team:nth-child(3)::before {
  background: var(--violet);
}

.page-about .about-team:nth-child(4)::before {
  background: var(--moss);
}

.page-about .about-team:hover {
  background: rgba(27, 34, 51, .9);
}

.page-about .about-team__index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--stone);
}

.page-about .about-team__title {
  margin: 14px 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 21px;
  line-height: 1.3;
  color: var(--paper);
}

.page-about .about-team__desc {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--stone);
}

.page-about .about-team__note {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed rgba(140, 147, 168, .28);
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.7;
  color: var(--stone);
}

@media (min-width: 720px) {
  .page-about .about-teams__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1120px) {
  .page-about .about-teams__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    padding-bottom: 26px;
  }

  .page-about .about-team:nth-child(2n) {
    transform: translateY(24px);
  }
}

/* ============ 赛程整理 ============ */
.page-about .about-schedule__banner {
  margin: 0 0 46px;
}

.page-about .about-schedule__head {
  max-width: 30em;
}

.page-about .about-schedule__cols {
  display: grid;
  gap: 34px;
  margin-top: 30px;
}

.page-about .about-schedule__prose {
  max-width: 34em;
}

.page-about .about-schedule__prose p {
  margin: 0 0 1.1em;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--stone);
}

.page-about .about-schedule__panel {
  padding: 28px 24px 30px;
  background: rgba(27, 34, 51, .88);
}

.page-about .about-schedule__panel-title {
  margin: 0 0 22px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--stone);
}

.page-about .about-schedule__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px 16px;
}

.page-about .about-schedule__stats .stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .about-schedule__stats .stat__value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1;
  color: var(--cyan);
}

.page-about .about-schedule__stats .stat__label {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--stone);
}

.page-about .about-schedule__link {
  margin: 42px 0 0;
}

@media (min-width: 960px) {
  .page-about .about-schedule__cols {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 60px;
    align-items: start;
  }
}

/* ============ 场边伙伴 ============ */
.page-about .about-partners__inner {
  display: grid;
  gap: 38px;
  align-items: start;
}

.page-about .about-partners__text .prose {
  max-width: 34em;
}

.page-about .about-partners__text .prose p {
  margin: 0 0 1.1em;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--stone);
}

.page-about .about-partners__cta {
  margin: 26px 0 0;
}

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

.page-about .about-partners__item {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 18px 16px 22px;
  background: rgba(27, 34, 51, .62);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}

.page-about .about-partners__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 3px;
  background: var(--neon);
  transform: skewY(-8deg);
}

.page-about .about-partners__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 28px;
  line-height: 1;
  color: var(--yellow);
}

.page-about .about-partners__label {
  font-size: 13.5px;
  letter-spacing: .06em;
  color: var(--stone);
}

.page-about .about-partners__figure {
  margin: 56px 0 0;
}

@media (min-width: 960px) {
  .page-about .about-partners__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 64px;
  }
}

/* ============ 认可（米白反转） ============ */
.page-about .about-recognition {
  background: var(--paper);
  color: var(--ink);
}

.page-about .about-recognition__inner {
  display: grid;
  gap: 34px;
  align-items: start;
}

.page-about .about-recognition .eyebrow {
  color: rgba(11, 14, 20, .55);
}

.page-about .about-recognition .eyebrow::before {
  background: var(--violet);
}

.page-about .about-recognition__title {
  color: var(--ink);
}

.page-about .about-recognition__note {
  margin: 20px 0 0;
  max-width: 22em;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(11, 14, 20, .62);
}

.page-about .about-recognition__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-recognition__item {
  display: grid;
  gap: 8px;
  padding: 22px 0;
  border-top: 1px solid rgba(11, 14, 20, .18);
}

.page-about .about-recognition__item:last-child {
  border-bottom: 1px solid rgba(11, 14, 20, .18);
}

.page-about .about-recognition__year {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: rgba(11, 14, 20, .55);
}

.page-about .about-recognition__text {
  margin: 0;
  font-size: 16.5px;
  line-height: 1.7;
  color: var(--ink);
}

@media (min-width: 960px) {
  .page-about .about-recognition__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 64px;
  }
}

/* ============ 收尾 ============ */
.page-about .about-outro {
  padding: 84px 0 90px;
  background: linear-gradient(180deg, var(--ink) 0%, var(--deep) 100%);
}

.page-about .about-outro__inner {
  display: grid;
  gap: 20px;
  max-width: 60em;
}

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

.page-about .about-outro__lede {
  max-width: 34em;
  margin: 0;
  color: var(--stone);
}

.page-about .about-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 8px;
}

.page-about .about-outro__meta {
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--stone);
}

.page-about .about-outro__meta a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, .35);
  transition: border-color .25s ease;
}

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

/* ============ 窄屏收口 ============ */
@media (max-width: 560px) {
  .page-about .about-hero {
    padding: 76px 0 54px;
  }

  .page-about .about-timeline,
  .page-about .about-outro {
    padding: 64px 0 62px;
  }

  .page-about .about-node {
    width: 244px;
    padding: 20px 16px 22px;
  }

  .page-about .about-node__num {
    font-size: 34px;
  }

  .page-about .about-schedule__panel {
    padding: 22px 18px 24px;
  }

  .page-about .about-partners__item {
    flex-direction: column;
    gap: 6px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-node,
  .page-about .about-node:hover,
  .page-about .about-node:focus-within,
  .page-about .about-team,
  .page-about .media__img,
  .page-about .about-rail .scroll-rail__dot {
    transform: none !important;
    filter: none !important;
    transition: none !important;
  }
}
<<<END>>>