.page-about{
  --about-hair:rgba(230,241,245,.14);
  --about-hair-soft:rgba(230,241,245,.08);
  --about-gap:clamp(18px,3vw,34px);
  background:var(--ink);
  color:var(--mist);
}

.page-about img{
  display:block;
  max-width:100%;
  height:auto;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero{
  position:relative;
  overflow:hidden;
  padding:clamp(48px,8vw,96px) 0 clamp(40px,6vw,72px);
  background:
    radial-gradient(120% 100% at 88% -20%,rgba(53,242,208,.18),transparent 58%),
    radial-gradient(80% 70% at 4% 112%,rgba(47,191,113,.14),transparent 62%),
    linear-gradient(180deg,#04121D 0%,#0A2238 100%);
}
.page-about .about-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,transparent 42%,rgba(53,242,208,.10) 50%,transparent 58%);
  transform:translateX(-120%);
  animation:about-sweep 11s var(--ease) 1.4s infinite;
  pointer-events:none;
}
@keyframes about-sweep{
  0%{transform:translateX(-120%);}
  60%,100%{transform:translateX(120%);}
}
.page-about .about-hero__inner{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:clamp(20px,3vw,36px);
}
.page-about .about-hero__rail{display:none;}
.page-about .about-hero__body{min-width:0;}

.page-about .about-hero__title{
  margin:14px 0 0;
  font-size:clamp(38px,9vw,92px);
  line-height:.98;
  letter-spacing:-.03em;
  font-weight:800;
  color:var(--mist);
}
.page-about .about-hero__lead{
  max-width:58ch;
  margin:clamp(20px,3vw,30px) 0 0;
  font-size:clamp(16px,1.5vw,18px);
  line-height:1.78;
  color:rgba(230,241,245,.82);
}
.page-about .about-hero__facts{
  list-style:none;
  margin:clamp(26px,4vw,42px) 0 0;
  padding:22px 0 0;
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:20px;
  border-top:1px solid var(--about-hair);
}
.page-about .about-hero__fact{
  display:flex;
  flex-direction:column;
  gap:6px;
}
.page-about .about-hero__num{
  font-family:var(--font-mono);
  font-size:clamp(26px,3.4vw,38px);
  font-weight:700;
  line-height:1;
  color:var(--cyan);
  letter-spacing:-.01em;
}
.page-about .about-hero__cap{
  font-size:13px;
  line-height:1.5;
  letter-spacing:.06em;
  color:var(--steel);
}

/* ---------- 通用章节修饰 ---------- */
.page-about .about-origin{gap:0;}
.page-about .about-origin__grid{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:clamp(24px,4vw,44px);
}
.page-about .about-origin__prose p{
  margin:0 0 1.1em;
  font-size:clamp(15px,1.5vw,17px);
  line-height:1.8;
  color:rgba(230,241,245,.84);
}
.page-about .about-origin__prose p:last-child{margin-bottom:0;}
.page-about .about-origin__stats{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:0;
  border-top:1px solid var(--about-hair);
}
.page-about .about-origin__stat{
  display:flex;
  flex-direction:column;
  gap:8px;
  padding:18px 0;
  border-bottom:1px solid var(--about-hair-soft);
}
.page-about .about-origin__stat .stat__value{
  font-family:var(--font-mono);
  font-size:clamp(28px,4vw,40px);
  font-weight:700;
  line-height:1;
  color:var(--orange);
}
.page-about .about-origin__unit{
  font-size:.42em;
  margin-left:4px;
  color:rgba(255,138,61,.78);
}
.page-about .about-origin__stat .stat__label{
  font-size:12.5px;
  letter-spacing:.08em;
  color:var(--steel);
}

.page-about .about-figure{
  margin:clamp(28px,4vw,48px) 0 0;
  position:relative;
  border:1px solid var(--about-hair);
  background:linear-gradient(160deg,rgba(6,43,42,.65),rgba(10,34,56,.9));
  overflow:hidden;
}
.page-about .about-figure::before{
  content:"";
  position:absolute;
  top:0;left:0;
  width:44px;height:1px;
  background:var(--cyan);
  z-index:2;
}
.page-about .about-figure img{
  width:100%;
  object-fit:cover;
  aspect-ratio:16/10;
}
.page-about .about-figure--team img{aspect-ratio:3/2;}
.page-about .about-figure--road img{aspect-ratio:8/3;}
.page-about .about-figure figcaption{
  padding:12px 16px 14px;
  font-size:12.5px;
  letter-spacing:.05em;
  color:var(--steel);
  border-top:1px solid var(--about-hair-soft);
}

/* ---------- 档案方法 ---------- */
.page-about .about-dossier{
  background:linear-gradient(180deg,#0A2238 0%,#04121D 100%);
}
.page-about .about-dossier__split{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:clamp(22px,3.4vw,40px);
}
.page-about .about-dossier__sub{
  margin:0 0 18px;
  font-size:clamp(19px,2.2vw,24px);
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--mist);
}
.page-about .about-dossier__tags{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:0;
  border-top:1px solid var(--about-hair);
}
.page-about .about-dossier__tag{
  display:grid;
  grid-template-columns:34px minmax(0,1fr);
  grid-template-areas:
    "idx name"
    "idx desc";
  gap:2px 10px;
  padding:14px 4px 14px 0;
  border-bottom:1px solid var(--about-hair-soft);
  transition:background 180ms var(--ease);
}
.page-about .about-dossier__tag:hover{
  background:rgba(47,191,113,.08);
}
.page-about .about-dossier__tag-idx{
  grid-area:idx;
  font-family:var(--font-mono);
  font-size:12px;
  line-height:1.6;
  color:var(--turf);
}
.page-about .about-dossier__tag-name{
  grid-area:name;
  font-size:16px;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--mist);
}
.page-about .about-dossier__tag-desc{
  grid-area:desc;
  font-size:13px;
  line-height:1.6;
  color:var(--steel);
}
.page-about .about-dossier__band-note{
  margin:18px 0 0;
  padding-left:14px;
  border-left:2px solid var(--cyan);
  font-size:13.5px;
  line-height:1.7;
  color:rgba(230,241,245,.74);
}

.page-about .about-dossier__panel{
  padding:clamp(20px,3vw,30px);
  border:1px solid var(--about-hair);
  background:rgba(6,43,42,.55);
  box-shadow:var(--shadow-soft);
}
.page-about .about-dossier__dims{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:0;
  counter-reset:dim;
}
.page-about .about-dossier__dim{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:4px;
  padding:13px 0;
  border-bottom:1px solid var(--about-hair-soft);
}
.page-about .about-dossier__dim:first-child{padding-top:0;}
.page-about .about-dossier__dim-name{
  font-size:15px;
  font-weight:700;
  color:var(--cyan);
  letter-spacing:.02em;
}
.page-about .about-dossier__dim-desc{
  font-size:13.5px;
  line-height:1.7;
  color:rgba(230,241,245,.76);
}
.page-about .about-dossier__tail{
  margin:18px 0 0;
  font-size:14px;
  line-height:1.8;
  color:rgba(230,241,245,.8);
}

/* ---------- 团队 ---------- */
.page-about .about-team .filter-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin:0 0 clamp(18px,3vw,28px);
}
.page-about .about-team .filter-bar__label{
  font-size:11.5px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--steel);
  margin-right:4px;
}
.page-about .about-team .filter-btn{
  appearance:none;
  border:1px solid var(--about-hair);
  background:transparent;
  color:rgba(230,241,245,.78);
  font-family:inherit;
  font-size:13px;
  letter-spacing:.04em;
  padding:7px 14px;
  border-radius:2px;
  cursor:pointer;
  transition:color 180ms var(--ease),border-color 180ms var(--ease),background 180ms var(--ease);
}
.page-about .about-team .filter-btn:hover{
  color:var(--cyan);
  border-color:var(--hair-cyan);
}
.page-about .about-team .filter-btn[aria-pressed="true"]{
  color:var(--ink);
  background:var(--cyan);
  border-color:var(--cyan);
  font-weight:700;
}
.page-about .about-team__list{
  list-style:none;
  margin:0;
  padding:0;
  border-top:1px solid var(--about-hair);
}
.page-about .about-team__item{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  grid-template-areas:
    "role count"
    "desc desc";
  align-items:baseline;
  gap:8px 12px;
  padding:20px 0;
  border-bottom:1px solid var(--about-hair-soft);
  transition:opacity 160ms var(--ease);
}
.page-about .about-team__item:hover{opacity:.92;}
.page-about .about-team__item[hidden]{display:none;}
.page-about .about-team__role{
  grid-area:role;
  font-size:clamp(17px,2vw,20px);
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--mist);
}
.page-about .about-team__count{
  grid-area:count;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.06em;
  color:var(--turf);
  white-space:nowrap;
}
.page-about .about-team__desc{
  grid-area:desc;
  margin:0;
  font-size:14px;
  line-height:1.78;
  color:rgba(230,241,245,.78);
}

/* ---------- 合作 ---------- */
.page-about .about-partners{
  background:linear-gradient(180deg,var(--paper) 0%,#EDE0C4 100%);
  color:#0A2238;
}
.page-about .about-partners .eyebrow{color:#0A2238;}
.page-about .about-partners .section-head__title{color:#0A2238;}
.page-about .about-partners .coordinate{color:#5A7690;}
.page-about .about-partners__grid{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:clamp(18px,3vw,30px);
}
.page-about .about-partners__block{
  padding:clamp(20px,3vw,30px);
  border:1px solid rgba(10,34,56,.22);
  background:rgba(255,255,255,.42);
}
.page-about .about-partners__title{
  margin:0 0 12px;
  font-size:clamp(18px,2.1vw,22px);
  font-weight:800;
  letter-spacing:-.01em;
  color:#0A2238;
}
.page-about .about-partners__text{
  margin:0 0 10px;
  font-size:14.5px;
  line-height:1.8;
  color:#25405A;
}
.page-about .about-partners__meta{
  margin:14px 0 0;
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.page-about .about-partners__meta .tag{
  border-color:rgba(10,34,56,.25);
  color:#0A2238;
}
.page-about .about-partners__note{
  margin-top:clamp(22px,3.4vw,34px);
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  align-items:start;
  gap:16px;
  padding:20px 22px;
  border:1px solid rgba(10,34,56,.28);
  background:rgba(255,255,255,.5);
}
.page-about .about-partners__note-num{
  font-family:var(--font-mono);
  font-size:clamp(34px,5vw,52px);
  font-weight:700;
  line-height:.9;
  color:#FF6A18;
}
.page-about .about-partners__note p{
  margin:0;
  font-size:14px;
  line-height:1.8;
  color:#25405A;
}

/* ---------- 赛季路线 ---------- */
.page-about .about-road__track{position:relative;}
.page-about .about-road__line{
  display:none;
  width:100%;
  height:24px;
  margin:0 0 -12px;
}
.page-about .about-road__list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:0;
  border-top:1px solid var(--about-hair);
}
.page-about .about-road__node{
  position:relative;
  display:grid;
  grid-template-columns:48px minmax(0,1fr);
  grid-template-areas:
    "season name"
    "dot more";
  gap:4px 10px;
  padding:16px 0 16px 0;
  border-bottom:1px solid var(--about-hair-soft);
  cursor:default;
  transition:background 180ms var(--ease);
}
.page-about .about-road__node:focus-visible{
  outline:1px solid var(--cyan);
  outline-offset:2px;
}
.page-about .about-road__season{
  grid-area:season;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--steel);
}
.page-about .about-road__dot{
  grid-area:dot;
  width:8px;height:8px;
  margin-top:7px;
  border-radius:50%;
  background:rgba(230,241,245,.28);
  box-shadow:0 0 0 3px rgba(230,241,245,.05);
  transition:background 180ms var(--ease),box-shadow 180ms var(--ease);
}
.page-about .about-road__node--key .about-road__dot{
  background:var(--orange);
  box-shadow:0 0 0 3px rgba(255,138,61,.18);
}
.page-about .about-road__name{
  grid-area:name;
  font-size:16px;
  font-weight:700;
  letter-spacing:.01em;
  color:var(--mist);
}
.page-about .about-road__more{
  grid-area:more;
  margin:6px 0 0;
  font-size:13.5px;
  line-height:1.7;
  color:rgba(230,241,245,.74);
}
.page-about .about-road__node:hover .about-road__dot,
.page-about .about-road__node:focus-within .about-road__dot{
  background:var(--cyan);
  box-shadow:0 0 0 4px rgba(53,242,208,.2);
}
.page-about .about-road__node:hover .about-road__season,
.page-about .about-road__node:focus-within .about-road__season{
  color:var(--cyan);
}

/* ---------- 收尾 ---------- */
.page-about .about-cta{
  background:
    radial-gradient(90% 120% at 12% 0%,rgba(53,242,208,.14),transparent 58%),
    linear-gradient(180deg,#0A2238 0%,#04121D 100%);
  padding-bottom:clamp(44px,6vw,76px);
}
.page-about .about-cta__inner{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:clamp(20px,3vw,36px);
  align-items:end;
  border-top:1px solid var(--hair-cyan);
  padding-top:clamp(24px,4vw,40px);
}
.page-about .about-cta__title{
  margin:0 0 12px;
  font-size:clamp(26px,4.4vw,46px);
  line-height:1.06;
  letter-spacing:-.02em;
  font-weight:800;
  color:var(--mist);
}
.page-about .about-cta__lead{
  margin:0;
  max-width:52ch;
  font-size:14.5px;
  line-height:1.8;
  color:rgba(230,241,245,.78);
}
.page-about .about-cta__actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.page-about .about-cta__actions .btn{
  font-size:14px;
}

/* ---------- 响应式 ---------- */
@media (min-width:640px){
  .page-about .about-hero__facts{
    grid-template-columns:repeat(3,minmax(0,1fr));
  }
  .page-about .about-origin__stats{
    grid-template-columns:repeat(3,minmax(0,1fr));
    border-bottom:1px solid var(--about-hair-soft);
  }
  .page-about .about-origin__stat{
    padding:18px 18px 18px 0;
    border-bottom:0;
    border-right:1px solid var(--about-hair-soft);
  }
  .page-about .about-origin__stat:last-child{
    border-right:0;
    padding-right:0;
  }
  .page-about .about-partners__grid{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
  .page-about .about-road__list{
    grid-template-columns:repeat(2,minmax(0,1fr));
    column-gap:clamp(16px,3vw,32px);
  }
}

@media (min-width:900px){
  .page-about .about-hero__inner{
    grid-template-columns:76px minmax(0,1fr);
    gap:clamp(24px,3vw,44px);
  }
  .page-about .about-hero__rail{
    display:flex;
    flex-direction:column;
    gap:12px;
    padding-right:18px;
    border-right:1px solid var(--about-hair);
  }
  .page-about .about-hero__rail-label{
    font-family:var(--font-mono);
    font-size:10px;
    letter-spacing:.2em;
    text-transform:uppercase;
    color:var(--steel);
    margin-bottom:6px;
  }
  .page-about .about-hero__tick{
    position:relative;
    padding-left:14px;
    font-family:var(--font-mono);
    font-size:11px;
    letter-spacing:.1em;
    color:var(--steel);
    transition:color 180ms var(--ease);
  }
  .page-about .about-hero__tick::before{
    content:"";
    position:absolute;
    left:0;top:50%;
    width:8px;height:1px;
    background:currentColor;
  }
  .page-about .about-hero__tick--on{
    color:var(--cyan);
    font-weight:700;
  }
  .page-about .about-hero__tick--on::before{
    width:16px;
    background:var(--cyan);
  }

  .page-about .about-origin__grid{
    grid-template-columns:minmax(0,7fr) minmax(0,5fr);
    align-items:start;
  }
  .page-about .about-origin__stats{
    grid-template-columns:minmax(0,1fr);
    position:sticky;
    top:calc(var(--header-h) + 24px);
  }
  .page-about .about-origin__stat{
    padding:16px 0;
    border-right:0;
    border-bottom:1px solid var(--about-hair-soft);
  }
  .page-about .about-origin__stat:last-child{
    border-bottom:0;
  }

  .page-about .about-dossier__split{
    grid-template-columns:minmax(0,6fr) minmax(0,6fr);
    align-items:start;
  }
  .page-about .about-dossier__tags{
    grid-template-columns:repeat(2,minmax(0,1fr));
    column-gap:clamp(16px,2.4vw,28px);
  }
  .page-about .about-dossier__panel{
    position:sticky;
    top:calc(var(--header-h) + 24px);
  }

  .page-about .about-team__item{
    grid-template-columns:180px 68px minmax(0,1fr);
    grid-template-areas:"role count desc";
    align-items:start;
    gap:0 20px;
    padding:22px 0;
  }
  .page-about .about-team__desc{
    padding-right:8px;
  }

  .page-about .about-road__line{display:block;}
  .page-about .about-road__list{
    grid-template-columns:repeat(4,minmax(0,1fr));
    border-top:0;
    column-gap:clamp(14px,2.2vw,26px);
  }
  .page-about .about-road__node{
    grid-template-columns:34px minmax(0,1fr);
    grid-template-areas:
      "season season"
      "dot name"
      "more more";
    border-bottom:0;
    padding:10px 0 18px;
    border-top:1px solid var(--about-hair-soft);
  }
  .page-about .about-road__dot{
    width:10px;
    height:10px;
    margin-top:5px;
  }
  .page-about .about-road__more{
    margin-top:8px;
  }

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

@media (min-width:900px) and (hover:hover){
  .page-about .about-road__more{
    max-height:0;
    opacity:0;
    overflow:hidden;
    transition:max-height 240ms var(--ease),opacity 200ms var(--ease),margin-top 240ms var(--ease);
    margin-top:0;
  }
  .page-about .about-road__node:hover .about-road__more,
  .page-about .about-road__node:focus-within .about-road__more{
    max-height:200px;
    opacity:1;
    margin-top:8px;
  }
  .page-about .about-road__node:hover,
  .page-about .about-road__node:focus-within{
    background:rgba(53,242,208,.05);
  }
}

@media (prefers-reduced-motion:reduce){
  .page-about .about-hero::after{animation:none;opacity:0;}
  .page-about .about-dossier__tag,
  .page-about .about-team__item,
  .page-about .about-road__node,
  .page-about .about-road__dot{transition:none;}
}
<<<END>>>