.page-about{
  --about-accent:var(--neon);
  --about-rule:rgba(143,166,190,.2);
  --about-text:#C8D8E8;
  --about-rail:148px;
  background:var(--ink);
}

.page-about .court-light{
  --about-accent:#0A8378;
  --about-rule:rgba(14,17,22,.12);
  --about-text:var(--charcoal);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero{
  position:relative;
  padding:clamp(104px,12vw,168px) 0 clamp(56px,7vw,88px);
  overflow:hidden;
  background:
    radial-gradient(900px 520px at 76% 8%, rgba(0,224,198,.15), transparent 66%),
    radial-gradient(660px 460px at 6% 92%, rgba(255,122,41,.11), transparent 70%),
    var(--ink);
}

.page-about .about-hero::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:repeating-linear-gradient(180deg, rgba(143,166,190,.07) 0 1px, transparent 1px 7px);
  opacity:.5;
}

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

.page-about .about-hero .court-crumbs{
  margin-bottom:clamp(34px,4.6vw,66px);
}

.page-about .about-hero__grid{
  display:grid;
  gap:clamp(36px,5vw,64px);
  align-items:center;
}

.page-about .about-hero__lead h1{
  margin:16px 0 0;
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(34px,5.6vw,60px);
  line-height:1.08;
  letter-spacing:-.02em;
  color:var(--white);
}

.page-about .about-hero__lead .court-lead{
  margin-top:22px;
}

.page-about .about-hero__actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:clamp(26px,3.2vw,38px);
}

.page-about .about-hero__figure{
  margin:0;
  position:relative;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  box-shadow:var(--shadow-panel);
  overflow:hidden;
  aspect-ratio:1280 / 860;
  background:var(--panel);
}

.page-about .about-hero__figure img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}

.page-about .about-hero__facts{
  list-style:none;
  margin:clamp(48px,6vw,84px) 0 0;
  padding:0;
  display:grid;
  gap:0;
}

.page-about .about-hero__facts li{
  display:flex;
  flex-direction:column;
  gap:8px;
  padding:20px 0;
  border-top:1px solid var(--about-rule);
}

.page-about .about-hero__facts b{
  font-family:var(--font-mono);
  font-weight:700;
  font-size:clamp(27px,3.6vw,40px);
  line-height:1;
  letter-spacing:-.03em;
  color:var(--white);
}

.page-about .about-hero__facts span{
  font-size:14px;
  color:var(--haze);
  letter-spacing:.02em;
}

/* ---------- 画册章节骨架 ---------- */
.page-about .about-chapter{
  padding:clamp(72px,9vw,132px) 0;
  position:relative;
}

.page-about .about-chapter--tight{
  padding-top:0;
}

.page-about .about-chapter__inner{
  display:grid;
  gap:clamp(22px,3vw,46px);
}

.page-about .about-chapter__rail{
  display:flex;
  align-items:baseline;
  gap:14px;
}

.page-about .about-chapter__year{
  font-family:var(--font-mono);
  font-weight:700;
  font-size:clamp(30px,6vw,46px);
  line-height:1;
  letter-spacing:-.03em;
  color:var(--about-accent);
}

.page-about .about-chapter__kicker{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.16em;
  color:var(--haze);
}

.page-about .court-light .about-chapter__kicker{
  color:rgba(14,17,22,.5);
}

.page-about .about-chapter__body > * + *{
  margin-top:clamp(20px,2.4vw,32px);
}

.page-about .about-chapter__body > .court-lead{
  margin-top:18px;
}

.page-about .about-prose p{
  font-size:17px;
  line-height:1.88;
  color:var(--about-text);
  max-width:64ch;
}

.page-about .about-prose p + p{
  margin-top:16px;
}

.page-about .about-prose a{
  color:var(--about-accent);
  text-decoration:underline;
  text-underline-offset:4px;
}

/* ---------- 起点三原则 ---------- */
.page-about .about-pillars{
  list-style:none;
  margin:clamp(34px,4.2vw,54px) 0 0;
  padding:0;
  display:grid;
  gap:clamp(20px,2.6vw,32px);
}

.page-about .about-pillars li{
  padding-top:22px;
  border-top:1px solid var(--about-rule);
}

.page-about .about-pillars__num{
  display:block;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.2em;
  color:var(--about-accent);
  margin-bottom:10px;
}

.page-about .about-pillars h3{
  margin:0 0 8px;
  font-size:21px;
  font-weight:800;
  color:var(--white);
}

.page-about .court-light .about-pillars h3{
  color:var(--charcoal);
}

.page-about .about-pillars p{
  margin:0;
  font-size:15px;
  line-height:1.75;
  color:var(--about-text);
}

/* ---------- 团队 ---------- */
.page-about .about-team{
  display:grid;
  gap:clamp(18px,2.4vw,28px);
  margin-top:clamp(28px,3.4vw,44px);
}

.page-about .about-team__role{
  margin:0;
  padding:22px 22px 24px;
  border-radius:var(--r-md);
  border:1px solid var(--about-rule);
  background:var(--white);
}

.page-about .about-team__role dt{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.08em;
  color:#0A8378;
  margin-bottom:12px;
}

.page-about .about-team__role dd{
  margin:0;
  font-size:15px;
  line-height:1.8;
  color:var(--charcoal);
}

.page-about .about-team__figure{
  margin:clamp(30px,3.6vw,48px) 0 0;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--about-rule);
  aspect-ratio:1100 / 720;
  background:var(--mist);
}

.page-about .about-team__figure img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline{
  list-style:none;
  margin:clamp(34px,4.2vw,56px) 0 0;
  padding:0;
  position:relative;
}

.page-about .about-timeline::before{
  content:"";
  position:absolute;
  left:4px;
  top:9px;
  bottom:12px;
  width:1px;
  background:var(--about-accent);
  opacity:.42;
}

.page-about .about-timeline__item{
  position:relative;
  padding:0 0 clamp(30px,3.6vw,46px) 32px;
}

.page-about .about-timeline__item:last-child{
  padding-bottom:0;
}

.page-about .about-timeline__item::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:9px;
  height:9px;
  border-radius:50%;
  background:var(--about-accent);
  box-shadow:0 0 0 5px rgba(0,224,198,.14);
}

.page-about .court-light .about-timeline__item::before{
  box-shadow:0 0 0 5px rgba(10,131,120,.14);
}

.page-about .about-timeline__meta{
  display:flex;
  align-items:baseline;
  gap:14px;
  flex-wrap:wrap;
  margin-bottom:10px;
}

.page-about .about-timeline__year{
  font-family:var(--font-mono);
  font-weight:700;
  font-size:clamp(22px,3vw,30px);
  line-height:1;
  letter-spacing:-.02em;
  color:var(--white);
}

.page-about .court-light .about-timeline__year{
  color:var(--charcoal);
}

.page-about .about-timeline__ver{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  padding:4px 10px;
  border-radius:var(--r-pill);
  border:1px solid currentColor;
  color:var(--about-accent);
}

.page-about .about-timeline__body h3{
  margin:0 0 8px;
  font-size:20px;
  font-weight:800;
  line-height:1.4;
  color:var(--white);
}

.page-about .court-light .about-timeline__body h3{
  color:var(--charcoal);
}

.page-about .about-timeline__body p{
  margin:0;
  font-size:15px;
  line-height:1.8;
  color:var(--about-text);
  max-width:60ch;
}

/* ---------- 覆盖版图 ---------- */
.page-about .about-coverage{
  display:grid;
  gap:clamp(26px,3.4vw,46px);
  margin-top:clamp(30px,3.8vw,52px);
}

.page-about .about-coverage__figure{
  margin:0;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:1400 / 900;
  background:var(--panel);
}

.page-about .about-coverage__figure img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}

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

.page-about .about-coverage__stats li{
  display:flex;
  align-items:baseline;
  gap:16px;
  padding:18px 0;
  border-bottom:1px solid var(--about-rule);
}

.page-about .about-coverage__stats li:first-child{
  border-top:1px solid var(--about-rule);
}

.page-about .about-coverage__stats b{
  flex:0 0 auto;
  font-family:var(--font-mono);
  font-weight:700;
  font-size:clamp(28px,4vw,40px);
  line-height:1;
  letter-spacing:-.03em;
  color:var(--white);
}

.page-about .about-coverage__stats span{
  font-size:15px;
  line-height:1.6;
  color:var(--haze);
}

/* ---------- 内容与运营 ---------- */
.page-about .about-channels{
  list-style:none;
  margin:clamp(28px,3.4vw,44px) 0 0;
  padding:0;
  display:grid;
  gap:14px;
}

.page-about .about-channels__item{
  padding:20px 20px 22px;
  border-radius:var(--r-md);
  border:1px solid var(--about-rule);
  background:var(--white);
}

.page-about .about-channels__item h3{
  margin:0 0 8px;
  font-size:18px;
  font-weight:800;
  color:var(--charcoal);
}

.page-about .about-channels__item p{
  margin:0;
  font-size:14px;
  line-height:1.75;
  color:rgba(14,17,22,.72);
}

.page-about .about-flow{
  list-style:none;
  margin:clamp(28px,3.4vw,44px) 0 0;
  padding:0;
  display:grid;
  gap:14px;
}

.page-about .about-flow li{
  display:flex;
  gap:14px;
  align-items:flex-start;
  font-size:15px;
  line-height:1.8;
  color:var(--charcoal);
}

.page-about .about-flow__num{
  flex:0 0 auto;
  display:grid;
  place-items:center;
  width:28px;
  height:28px;
  border-radius:50%;
  font-family:var(--font-mono);
  font-size:13px;
  font-weight:700;
  color:#06251F;
  background:var(--neon-soft);
  margin-top:1px;
}

.page-about .about-note-inline{
  margin-top:clamp(24px,3vw,36px);
  font-size:15px;
  line-height:1.8;
  color:var(--charcoal);
}

.page-about .about-note-inline a{
  color:#0A8378;
  text-decoration:underline;
  text-underline-offset:4px;
}

/* ---------- 合作生态 ---------- */
.page-about .about-partners{
  display:grid;
  gap:clamp(20px,2.6vw,34px);
  margin-top:clamp(30px,3.8vw,48px);
}

.page-about .about-partners__col{
  padding:26px 24px 28px;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--panel);
}

.page-about .about-partners__col h3{
  margin:0 0 12px;
  font-family:var(--font-mono);
  font-size:14px;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--neon);
}

.page-about .about-partners__col p{
  margin:0;
  font-size:15px;
  line-height:1.85;
  color:var(--about-text);
}

.page-about .about-honor{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px 18px;
  margin-top:clamp(28px,3.4vw,44px);
  padding-top:22px;
  border-top:1px solid var(--about-rule);
}

.page-about .about-honor p{
  margin:0;
  font-size:15px;
  line-height:1.75;
  color:var(--about-text);
}

/* ---------- 行动区 ---------- */
.page-about .about-cta{
  padding:0 0 clamp(80px,10vw,140px);
}

.page-about .about-cta__panel{
  border-radius:var(--r-lg);
  border:1px solid rgba(0,224,198,.32);
  padding:clamp(30px,5vw,72px);
  background:
    radial-gradient(760px 380px at 10% 0%, rgba(0,224,198,.17), transparent 64%),
    radial-gradient(560px 320px at 94% 112%, rgba(255,122,41,.16), transparent 68%),
    var(--panel);
}

.page-about .about-cta__panel h2{
  margin:16px 0 0;
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(28px,4vw,42px);
  line-height:1.15;
  letter-spacing:-.02em;
  color:var(--white);
}

.page-about .about-cta__lead{
  margin:18px 0 0;
  font-size:16px;
  line-height:1.85;
  color:var(--about-text);
  max-width:58ch;
}

.page-about .about-ways{
  list-style:none;
  margin:clamp(28px,3.6vw,48px) 0 0;
  padding:0;
  display:grid;
  gap:14px;
}

.page-about .about-ways__card{
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:24px 22px 26px;
  border-radius:var(--r-md);
  border:1px solid rgba(143,166,190,.24);
  background:rgba(255,255,255,.04);
}

.page-about .about-ways__tag{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  color:var(--neon);
}

.page-about .about-ways__card h3{
  margin:0;
  font-size:19px;
  font-weight:800;
  line-height:1.35;
  color:var(--white);
}

.page-about .about-ways__card p{
  margin:0;
  font-size:14px;
  line-height:1.8;
  color:var(--about-text);
}

.page-about .about-ways__link{
  margin-top:auto;
  align-self:flex-start;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.04em;
  color:var(--orange);
  border-bottom:1px solid rgba(255,122,41,.5);
  padding-bottom:3px;
  text-decoration:none;
}

.page-about .about-ways__link:hover{
  border-bottom-color:var(--orange);
}

/* ---------- 响应式 ---------- */
@media (min-width:640px){
  .page-about .about-hero__facts{
    grid-template-columns:repeat(2,minmax(0,1fr));
    column-gap:clamp(20px,3vw,36px);
  }
  .page-about .about-hero__facts li:nth-child(odd){
    padding-left:0;
  }
  .page-about .about-team{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
  .page-about .about-channels{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
  .page-about .about-ways{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
}

@media (min-width:820px){
  .page-about .about-pillars{
    grid-template-columns:repeat(3,minmax(0,1fr));
  }
  .page-about .about-coverage{
    grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);
    align-items:center;
  }
  .page-about .about-partners{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
}

@media (min-width:960px){
  .page-about .about-hero__grid{
    grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);
  }
  .page-about .about-hero__facts{
    grid-template-columns:repeat(4,minmax(0,1fr));
    column-gap:0;
  }
  .page-about .about-hero__facts li{
    padding:10px 0 10px 26px;
    border-top:0;
    border-left:1px solid var(--about-rule);
  }
  .page-about .about-hero__facts li:first-child{
    padding-left:0;
    border-left:0;
  }
  .page-about .about-ways{
    grid-template-columns:repeat(3,minmax(0,1fr));
  }
}

@media (min-width:1000px){
  .page-about .about-chapter__inner{
    grid-template-columns:var(--about-rail) minmax(0,1fr);
    gap:clamp(40px,5vw,92px);
  }
  .page-about .about-chapter__rail{
    flex-direction:column;
    align-items:flex-start;
    gap:12px;
    position:sticky;
    top:calc(var(--header-h) + 34px);
    align-self:start;
  }
  .page-about .about-team{
    grid-template-columns:repeat(3,minmax(0,1fr));
  }
  .page-about .about-channels{
    grid-template-columns:repeat(3,minmax(0,1fr));
  }
}

@media (min-width:1240px){
  .page-about .about-channels{
    grid-template-columns:repeat(5,minmax(0,1fr));
  }
  .page-about .about-channels__item{
    padding:22px 18px 24px;
  }
}

@media (prefers-reduced-motion:reduce){
  .page-about .about-ways__link,
  .page-about .about-timeline__item{
    transition:none !important;
  }
}
</main>