.page-about {
  --about-line: rgba(124, 255, 230, 0.16);
  --about-line-soft: rgba(124, 255, 230, 0.08);
  --about-paper-line: rgba(22, 16, 12, 0.16);
  --about-panel-hi: #101E28;
  --about-text: rgba(241, 235, 223, 0.8);
  --about-space: clamp(56px, 8vw, 120px);
  overflow-x: clip;
  position: relative;
}

.page-about [id] {
  scroll-margin-top: 104px;
}

/* ---------- 面包屑 ---------- */

.page-about .breadcrumb {
  padding-top: clamp(20px, 3vw, 34px);
}

.page-about .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-about .breadcrumb__list li {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.page-about .breadcrumb__list li + li::before {
  content: "/";
  color: var(--muted);
  opacity: 0.55;
}

.page-about .breadcrumb__list a {
  color: var(--cyan-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

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

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

/* ---------- 左侧年份刻度轴 ---------- */

.page-about .about-rail {
  display: none;
}

@media (min-width: 1440px) {
  .page-about .about-rail {
    display: block;
    position: fixed;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 5;
  }

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

  .page-about .about-rail__item {
    display: block;
    padding-left: 10px;
    border-left: 1px solid var(--about-line);
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    color: var(--muted);
    text-decoration: none;
    transition: color 180ms var(--ease), border-color 180ms var(--ease);
  }

  .page-about .about-rail__item:hover,
  .page-about .about-rail__item:focus-visible {
    color: var(--cyan);
    border-left-color: var(--cyan);
  }
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  padding: clamp(32px, 5vw, 64px) 0 clamp(40px, 6vw, 76px);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: -18% -8% auto -8%;
  height: 78%;
  background:
    radial-gradient(58% 78% at 16% 0%, rgba(0, 232, 210, 0.15), transparent 70%),
    radial-gradient(46% 66% at 94% 10%, rgba(255, 106, 19, 0.1), transparent 72%);
  pointer-events: none;
  z-index: 0;
}

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

.page-about .about-hero__eyebrow {
  margin-bottom: 20px;
}

.page-about .about-hero__title {
  margin: 0;
  font-size: clamp(2.15rem, 7vw, 4.6rem);
  line-height: 1.06;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--paper);
  max-width: 22ch;
}

.page-about .about-hero__mark {
  position: relative;
  display: inline-block;
  color: var(--cyan);
}

.page-about .about-hero__mark::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.06em;
  height: 0.1em;
  background: var(--orange);
  opacity: 0.75;
}

.page-about .about-hero__lower {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  margin-top: clamp(28px, 4vw, 46px);
}

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

.page-about .about-hero__lede {
  max-width: 38ch;
  margin: 0;
  color: var(--about-text);
}

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

.page-about .about-hero__stat {
  background: var(--ink);
  padding: 16px 18px;
}

.page-about .about-hero__stat dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-about .about-hero__stat dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

/* ---------- 起点 ---------- */

.page-about .about-origin {
  padding-top: var(--about-space);
  padding-bottom: var(--about-space);
  border-top: 1px solid var(--about-line-soft);
}

.page-about .about-origin__grid {
  display: grid;
  gap: clamp(30px, 5vw, 68px);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 900px) {
  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 6.4fr) minmax(0, 5.6fr);
    align-items: start;
  }
}

.page-about .about-origin__copy h2,
.page-about .about-timeline h2,
.page-about .about-pillars h2,
.page-about .about-scale h2,
.page-about .about-channels h2,
.page-about .about-partners h2,
.page-about .about-next__title {
  margin: 12px 0 20px;
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  font-weight: 800;
  color: var(--paper);
}

.page-about .about-origin__copy p {
  max-width: 40ch;
  margin: 0 0 18px;
  color: var(--about-text);
}

.page-about .about-origin__copy p:last-child {
  margin-bottom: 0;
}

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

.page-about .about-origin__frame {
  aspect-ratio: 4 / 3;
}

.page-about .about-origin__frame img {
  filter: saturate(0.9) contrast(1.05);
}

.page-about .about-origin__caption {
  display: block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* ---------- 赛季时间线 ---------- */

.page-about .about-timeline {
  padding-top: var(--about-space);
  padding-bottom: var(--about-space);
  border-top: 1px solid var(--about-line-soft);
}

.page-about .about-timeline__lede {
  max-width: 40ch;
  margin: 0;
  color: var(--about-text);
}

.page-about .about-timeline__scroller {
  margin-top: clamp(30px, 4.5vw, 52px);
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 10px;
}

.page-about .about-timeline__scroller::-webkit-scrollbar {
  height: 3px;
}

.page-about .about-timeline__scroller::-webkit-scrollbar-track {
  background: var(--about-line-soft);
}

.page-about .about-timeline__scroller::-webkit-scrollbar-thumb {
  background: var(--cyan);
}

.page-about .about-timeline__track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(210px, 1fr);
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--about-line);
}

.page-about .about-timeline__item {
  position: relative;
  scroll-snap-align: start;
  padding: 26px 20px 30px 0;
  border-right: 1px solid var(--about-line-soft);
}

.page-about .about-timeline__item:not(:first-child) {
  padding-left: 20px;
}

.page-about .about-timeline__item:last-child {
  border-right: none;
}

.page-about .about-timeline__dot {
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(0, 232, 210, 0.16);
  margin: 0 0 20px;
}

.page-about .about-timeline__year {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-about .about-timeline__name {
  margin: 14px 0 10px;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--paper);
}

.page-about .about-timeline__desc {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .about-timeline__figure {
  margin-top: clamp(28px, 4vw, 44px);
}

/* ---------- 四类核心能力 ---------- */

.page-about .about-pillars {
  padding-top: var(--about-space);
  padding-bottom: var(--about-space);
  border-top: 1px solid var(--about-line-soft);
}

.page-about .about-pillars__lede {
  max-width: 42ch;
  margin: 0;
  color: var(--about-text);
}

.page-about .about-pillars__list {
  margin-top: clamp(30px, 4.5vw, 52px);
  border-top: 1px solid var(--about-line);
}

.page-about .about-pillar {
  display: grid;
  gap: 10px 26px;
  padding: clamp(24px, 3.2vw, 36px) 0;
  border-bottom: 1px solid var(--about-line-soft);
  grid-template-columns: 44px minmax(0, 1fr);
  transition: background 220ms var(--ease);
}

.page-about .about-pillar:hover {
  background: rgba(0, 232, 210, 0.03);
}

@media (min-width: 900px) {
  .page-about .about-pillar {
    grid-template-columns: 64px minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: start;
  }
}

.page-about .about-pillar__index {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--orange);
  padding-top: 4px;
}

.page-about .about-pillar__body h3 {
  margin: 0 0 12px;
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--paper);
}

.page-about .about-pillar__body p {
  max-width: 42ch;
  margin: 0;
  color: var(--about-text);
  font-size: 0.9375rem;
}

.page-about .about-pillar__meta {
  display: grid;
  gap: 12px;
  margin: 0;
}

@media (min-width: 900px) {
  .page-about .about-pillar__meta {
    border-left: 1px solid var(--about-line-soft);
    padding-left: 24px;
  }
}

.page-about .about-pillar__meta > div {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  align-items: baseline;
}

.page-about .about-pillar__meta dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  min-width: 72px;
}

.page-about .about-pillar__meta dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--cyan-soft);
}

/* ---------- 内容团队（奶油反向区块，全页仅此一处） ---------- */

.page-about .about-team {
  margin: var(--about-space) 0;
  padding: clamp(48px, 7vw, 100px) 0;
  color: var(--paper-ink);
}

.page-about .about-team__eyebrow.eyebrow {
  color: var(--orange-deep);
}

.page-about .about-team h2 {
  margin: 12px 0 20px;
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper-ink);
}

.page-about .about-team__lede {
  max-width: 42ch;
  margin: 0;
  color: rgba(22, 16, 12, 0.76);
}

.page-about .about-team__grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(30px, 4.5vw, 48px);
  background: var(--about-paper-line);
  border: 1px solid var(--about-paper-line);
  grid-template-columns: minmax(0, 1fr);
}

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

@media (min-width: 1120px) {
  .page-about .about-team__grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

.page-about .about-team__card {
  background: var(--paper);
  padding: clamp(20px, 2.4vw, 26px);
}

.page-about .about-team__tag {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--orange-deep);
}

.page-about .about-team__card h3 {
  margin: 0 0 10px;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--paper-ink);
}

.page-about .about-team__card p {
  margin: 0 0 14px;
  font-size: 0.8125rem;
  line-height: 1.72;
  color: rgba(22, 16, 12, 0.74);
}

.page-about .about-team__rhythm {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--about-paper-line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: rgba(22, 16, 12, 0.6);
}

/* ---------- 团队规模与节点 ---------- */

.page-about .about-scale {
  padding-top: var(--about-space);
  padding-bottom: var(--about-space);
}

.page-about .about-scale__grid {
  display: grid;
  gap: clamp(30px, 4.5vw, 60px);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 960px) {
  .page-about .about-scale__grid {
    grid-template-columns: minmax(0, 6.2fr) minmax(0, 5.8fr);
    align-items: start;
  }
}

.page-about .about-scale__intro p {
  max-width: 40ch;
  margin: 0 0 18px;
  color: var(--about-text);
}

.page-about .about-scale__intro p:last-child {
  margin-bottom: 0;
}

.page-about .about-scale__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--about-line-soft);
  border: 1px solid var(--about-line-soft);
}

.page-about .about-scale__item {
  background: var(--panel);
  padding: clamp(20px, 2.6vw, 28px);
}

.page-about .about-scale__item dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-about .about-scale__item dd {
  margin: 12px 0 0;
  display: flex;
  align-items: baseline;
  gap: 6px;
  flex-wrap: wrap;
}

.page-about .about-scale__num {
  font-family: var(--font-mono);
  font-size: clamp(2.2rem, 4.4vw, 3.1rem);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-about .about-scale__unit {
  font-size: 0.8125rem;
  color: var(--muted);
}

/* ---------- 三个版本通道 ---------- */

.page-about .about-channels {
  padding-top: var(--about-space);
  padding-bottom: var(--about-space);
  border-top: 1px solid var(--about-line-soft);
}

.page-about .about-channels__lede {
  max-width: 40ch;
  margin: 0;
  color: var(--about-text);
}

.page-about .about-channels__grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(30px, 4.5vw, 48px);
  background: var(--about-line-soft);
  border: 1px solid var(--about-line-soft);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 900px) {
  .page-about .about-channels__grid {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 1fr) minmax(0, 0.86fr);
  }
}

.page-about .about-channel {
  background: var(--panel);
  padding: clamp(22px, 2.8vw, 32px);
  outline: none;
  transition: background 240ms var(--ease);
}

.page-about .about-channel:hover,
.page-about .about-channel:focus-visible {
  background: var(--about-panel-hi);
}

.page-about .about-channel__tag {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-about .about-channel h3 {
  margin: 0 0 12px;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-about .about-channel__desc {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.74;
  color: var(--about-text);
}

.page-about .about-channel__more {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--about-line-soft);
}

.page-about .about-channel__more p {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.74;
  color: var(--muted);
}

@media (min-width: 900px) {
  .page-about .about-channel__more {
    max-height: 0;
    margin-top: 0;
    padding-top: 0;
    border-top-color: transparent;
    overflow: hidden;
    opacity: 0;
    transition: max-height 340ms var(--ease), opacity 220ms var(--ease),
      margin-top 340ms var(--ease), padding-top 340ms var(--ease);
  }

  .page-about .about-channel:hover .about-channel__more,
  .page-about .about-channel:focus-visible .about-channel__more {
    max-height: 240px;
    margin-top: 14px;
    padding-top: 14px;
    border-top-color: var(--about-line-soft);
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-channel,
  .page-about .about-channel__more,
  .page-about .about-next__link {
    transition: none;
  }
}

/* ---------- 内容伙伴 ---------- */

.page-about .about-partners {
  padding-top: var(--about-space);
  padding-bottom: var(--about-space);
  border-top: 1px solid var(--about-line-soft);
}

.page-about .about-partners__grid {
  display: grid;
  gap: clamp(30px, 4.5vw, 60px);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 900px) {
  .page-about .about-partners__grid {
    grid-template-columns: minmax(0, 4.6fr) minmax(0, 7.4fr);
    align-items: start;
  }
}

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

.page-about .about-partners__frame {
  aspect-ratio: 4 / 3;
}

.page-about .about-partners__copy > p {
  max-width: 42ch;
  margin: 0 0 18px;
  color: var(--about-text);
}

.page-about .about-partners__list {
  list-style: none;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
  border-top: 1px solid var(--about-line);
}

.page-about .about-partners__list li {
  padding: 20px 0;
  border-bottom: 1px solid var(--about-line-soft);
}

.page-about .about-partners__list h3 {
  margin: 0 0 8px;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--cyan-soft);
}

.page-about .about-partners__list p {
  max-width: 42ch;
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.74;
  color: var(--about-text);
}

.page-about .about-partners__cta {
  margin: clamp(24px, 3.4vw, 36px) 0 0;
}

/* ---------- 后续入口 ---------- */

.page-about .about-next {
  padding-top: var(--about-space);
  padding-bottom: clamp(64px, 9vw, 132px);
  border-top: 1px solid var(--about-line-soft);
}

.page-about .about-next__links {
  display: grid;
  gap: 1px;
  margin-top: clamp(24px, 3.6vw, 40px);
  background: var(--about-line-soft);
  border: 1px solid var(--about-line-soft);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 760px) {
  .page-about .about-next__links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-about .about-next__link {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(22px, 2.8vw, 30px);
  background: var(--ink);
  text-decoration: none;
  transition: background 220ms var(--ease);
}

.page-about .about-next__link:hover,
.page-about .about-next__link:focus-visible {
  background: var(--about-panel-hi);
}

.page-about .about-next__label {
  font-size: 1.125rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-about .about-next__label::after {
  content: " →";
  font-family: var(--font-mono);
  color: var(--orange);
}

.page-about .about-next__hint {
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--muted);
}

@media (min-width: 700px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
<<<END>>>