.page-about {
  --about-rail-w: 212px;
  --about-sticky-top: 96px;
  --about-paper-shadow: 8px 8px 0 -1px #07111C, 8px 8px 0 0 #2A4256;
  background: var(--ink-950);
  color: var(--white);
  font-family: var(--font-body);
  overflow-wrap: break-word;
}

.page-about p {
  margin: 0 0 1em;
  color: var(--gray);
  line-height: 1.75;
  font-size: 1rem;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  line-height: 1.06;
  margin: 0;
  color: var(--white);
}

.page-about a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 192, 0.35);
}

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

.page-about .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 首屏 ---------- */

.about-hero {
  position: relative;
  padding: 28px 0 56px;
  background:
    radial-gradient(115% 85% at 88% -10%, rgba(0, 229, 192, 0.16), transparent 62%),
    radial-gradient(85% 70% at 4% 108%, rgba(255, 107, 44, 0.14), transparent 66%),
    var(--ink-950);
}

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

.about-hero__crumbs {
  margin-bottom: 18px;
}

.about-hero .eyebrow {
  display: inline-block;
  margin: 0 0 12px;
  color: var(--cyan);
  letter-spacing: 0.16em;
}

.about-hero h1 {
  font-size: clamp(2.3rem, 8.4vw, 4.6rem);
  font-weight: 800;
  text-transform: none;
  max-width: 14ch;
  margin-bottom: 18px;
}

.about-hero__lede {
  max-width: 46ch;
  font-size: 1.02rem;
  border-left: 2px solid var(--orange);
  padding-left: 16px;
  color: #C7D8E4;
}

.about-hero__facts {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
}

.about-hero__fact {
  padding: 14px 10px;
  border: 1px solid var(--line);
  border-radius: var(--cut);
  background: rgba(14, 30, 46, 0.78);
}

.about-hero__num {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--cyan);
  line-height: 1.1;
}

.about-hero__cap {
  display: block;
  margin-top: 6px;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--gray);
  line-height: 1.4;
}

.about-hero__media {
  margin: 0;
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--cut);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 3%, 100% 100%, 0 97%);
  background: var(--navy-900);
}

.about-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.05);
}

.about-hero__caption {
  position: absolute;
  left: 14px;
  bottom: 16px;
  right: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: rgba(7, 17, 28, 0.82);
  border-left: 3px solid var(--orange);
  font-size: 0.78rem;
  color: #C7D8E4;
  line-height: 1.4;
}

/* ---------- 编年史 ---------- */

.about-chron {
  padding: 48px 0 56px;
  background: linear-gradient(180deg, #0E1E2E 0%, #07111C 100%);
  border-top: 1px solid var(--line);
}

.about-chron__inner {
  display: grid;
  gap: 28px;
}

.about-chron__inner > * {
  min-width: 0;
}

.about-rail {
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.about-rail__title {
  margin: 0 0 10px;
  color: var(--gray);
}

.about-rail__list {
  list-style: none;
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 8px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.about-rail__list::-webkit-scrollbar {
  display: none;
}

.about-rail__item {
  flex: 0 0 auto;
}

.about-rail__link {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 118px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: var(--cut);
  background: var(--slate-800);
  border-bottom-color: var(--line);
  transition: border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.about-rail__link:hover,
.about-rail__link:focus-visible {
  border-color: var(--cyan);
  background: #16324a;
}

.about-rail__year {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--cyan);
  line-height: 1;
}

.about-rail__tag {
  font-family: var(--font-label);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--gray);
}

.about-chron__head {
  margin-bottom: 26px;
}

.about-chron__intro {
  margin-top: 14px;
  max-width: 56ch;
}

.about-node {
  position: relative;
  padding: 0 0 30px 22px;
  border-left: 2px solid var(--line);
}

.about-node::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 8px;
  width: 10px;
  height: 10px;
  background: var(--ink-950);
  border: 2px solid var(--cyan);
  border-radius: 50%;
}

.about-node__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.about-node__title {
  font-size: clamp(1.25rem, 4.4vw, 1.75rem);
  width: 100%;
}

.about-node p {
  max-width: 58ch;
}

.about-node__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}

.about-node--card {
  background: var(--navy-900);
  border: 1px solid var(--line);
  border-left: 2px solid var(--orange);
  border-radius: var(--cut);
  padding: 20px 18px 22px;
  box-shadow: var(--about-paper-shadow);
}

.about-node--card::before {
  left: -7px;
}

@media (min-width: 900px) {
  .about-hero {
    padding: 40px 0 80px;
  }

  .about-hero__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
    gap: 52px;
  }

  .about-hero__media {
    clip-path: polygon(6% 0, 100% 0, 100% 100%, 0 100%);
    border-radius: 0 var(--cut) var(--cut) 0;
  }

  .about-chron {
    padding: 72px 0 88px;
  }

  .about-chron__inner {
    grid-template-columns: var(--about-rail-w) minmax(0, 1fr);
    gap: 48px;
  }

  .about-rail {
    position: sticky;
    top: var(--about-sticky-top);
    align-self: start;
  }

  .about-rail__list {
    flex-direction: column;
    overflow: visible;
  }

  .about-rail__link {
    min-width: 0;
  }

  .about-node {
    padding-left: 28px;
  }

  .about-node__tags {
    opacity: 0.5;
    transition: opacity 0.18s var(--ease);
  }

  .about-node:hover .about-node__tags,
  .about-node:focus-within .about-node__tags {
    opacity: 1;
  }

  .about-node--narrow {
    max-width: 620px;
  }
}

/* ---------- 内容生产 ---------- */

.about-produce {
  padding: 52px 0 60px;
  background: var(--ink-950);
  border-top: 1px solid var(--line);
}

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

.about-produce__inner > * {
  min-width: 0;
}

.about-produce__media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--cut);
  overflow: hidden;
  background: var(--navy-900);
}

.about-produce__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.about-produce__media figcaption {
  padding: 10px 14px;
  font-size: 0.76rem;
  color: var(--gray);
  border-top: 1px solid var(--line);
  line-height: 1.5;
}

.about-crew {
  margin-top: 22px;
  display: grid;
  gap: 8px;
}

.about-crew__item {
  border: 1px solid var(--line);
  border-radius: var(--cut);
  background: var(--navy-900);
  transition: border-color 0.18s var(--ease);
}

.about-crew__item[open] {
  border-color: var(--cyan);
  background: #102438;
}

.about-crew__item summary {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px;
  padding: 13px 15px;
  cursor: pointer;
  list-style: none;
}

.about-crew__item summary::-webkit-details-marker {
  display: none;
}

.about-crew__idx {
  font-size: 0.78rem;
  color: var(--orange);
}

.about-crew__name {
  font-family: var(--font-label);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--white);
}

.about-crew__hint {
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--gray);
  margin-left: auto;
}

.about-crew__item p {
  margin: 0;
  padding: 0 15px 15px;
  font-size: 0.92rem;
}

@media (min-width: 900px) {
  .about-produce {
    padding: 82px 0 92px;
  }

  .about-produce__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 48px;
    align-items: start;
  }

  .about-produce__media {
    position: sticky;
    top: var(--about-sticky-top);
  }
}

/* ---------- 合作生态 ---------- */

.about-network {
  padding: 52px 0 58px;
  background:
    linear-gradient(180deg, rgba(19, 43, 63, 0.9) 0%, rgba(7, 17, 28, 1) 100%);
  border-top: 1px solid var(--line);
}

.about-network__lead {
  margin-top: 14px;
  max-width: 60ch;
}

.about-network__stats {
  list-style: none;
  display: grid;
  gap: 14px;
  margin: 28px 0 0;
  padding: 0;
}

.about-network__stat {
  padding: 18px 18px 20px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  border-radius: var(--cut);
  background: rgba(7, 17, 28, 0.7);
}

.about-network__stat--green {
  border-left-color: var(--green);
}

.about-network__stat--yellow {
  border-left-color: var(--yellow);
}

.about-network__num {
  display: block;
  font-size: clamp(2.4rem, 12vw, 3.4rem);
  font-weight: 700;
  line-height: 0.95;
  color: var(--white);
}

.about-network__label {
  display: block;
  margin: 8px 0 10px;
  font-family: var(--font-label);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.about-network__stat--green .about-network__label {
  color: var(--green);
}

.about-network__stat--yellow .about-network__label {
  color: var(--yellow);
}

.about-network__stat p {
  margin: 0;
  font-size: 0.9rem;
}

.about-network__tail {
  margin-top: 22px;
  font-size: 0.94rem;
}

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

@media (min-width: 900px) {
  .about-network {
    padding: 72px 0 80px;
  }
}

/* ---------- 团队 ---------- */

.about-team {
  padding: 52px 0 58px;
  background: var(--ink-950);
  border-top: 1px solid var(--line);
}

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

.about-team__inner > * {
  min-width: 0;
}

.about-team__media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--cut);
  overflow: hidden;
  background: var(--navy-900);
  clip-path: polygon(0 0, 100% 0, 100% 94%, 0 100%);
}

.about-team__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.about-team__list {
  list-style: none;
  display: grid;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
}

.about-team__list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 14px 16px;
  background: var(--navy-900);
  border: 1px solid var(--line);
  border-radius: var(--cut);
  box-shadow: 4px 4px 0 -1px #07111C, 4px 4px 0 0 #2A4256;
}

.about-team__list-num {
  flex: 0 0 auto;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--orange);
  line-height: 1;
}

.about-team__list-text {
  font-size: 0.9rem;
  color: var(--gray);
  line-height: 1.65;
}

@media (min-width: 900px) {
  .about-team {
    padding: 78px 0 86px;
  }

  .about-team__inner {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 52px;
    align-items: start;
  }
}

/* ---------- 赛场语言 ---------- */

.about-voice {
  padding: 52px 0 58px;
  background: linear-gradient(180deg, #0E1E2E 0%, #07111C 100%);
  border-top: 1px solid var(--line);
}

.about-voice__intro {
  margin-top: 14px;
  max-width: 62ch;
}

.about-voice__grid {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.about-voice__item {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--cut);
  background: rgba(19, 43, 63, 0.62);
  transition: transform 0.18s var(--ease), border-color 0.18s var(--ease);
}

.about-voice__item:hover {
  transform: translateY(-3px);
  border-color: var(--cyan);
}

.about-voice__tag {
  display: inline-block;
  margin-bottom: 10px;
  padding: 3px 9px;
  font-size: 0.72rem;
  color: var(--ink-950);
  background: var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 92% 100%, 0 100%);
}

.about-voice__item h3 {
  font-size: 1.3rem;
  margin-bottom: 8px;
}

.about-voice__item p {
  margin: 0;
  font-size: 0.92rem;
}

.about-voice__tail {
  margin-top: 22px;
  font-size: 0.94rem;
  max-width: 68ch;
}

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

@media (min-width: 900px) {
  .about-voice {
    padding: 72px 0 80px;
  }
}

/* ---------- 收尾 ---------- */

.about-cta {
  padding: 46px 0 54px;
  background:
    linear-gradient(105deg, rgba(255, 107, 44, 0.16) 0%, rgba(7, 17, 28, 0) 62%),
    var(--ink-950);
  border-top: 2px solid var(--orange);
}

.about-cta__inner {
  display: grid;
  gap: 22px;
}

.about-cta__title {
  font-size: clamp(1.7rem, 6.6vw, 2.6rem);
  margin-bottom: 10px;
}

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

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

@media (min-width: 900px) {
  .about-cta {
    padding: 60px 0 70px;
  }

  .about-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 40px;
  }

  .about-cta__actions {
    justify-content: flex-end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

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