.page-about{
  --about-line:rgba(201,162,39,.28);
  --about-line-strong:rgba(201,162,39,.78);
  background:var(--paper);
  color:var(--black);
}

/* 面包屑 */
.page-about .about-crumb{
  padding-top:20px;
  padding-bottom:4px;
}
.page-about .about-crumb .breadcrumb{
  font-size:13px;
  letter-spacing:.06em;
  color:var(--slate-600);
}
.page-about .about-crumb .breadcrumb a{
  color:var(--ink-700);
  text-decoration:none;
  border-bottom:1px solid var(--about-line);
}
.page-about .about-crumb .breadcrumb a:hover{
  border-bottom-color:var(--gold-500);
  color:var(--cinnabar-600);
}
.page-about .about-crumb .breadcrumb__sep{
  margin:0 8px;
  color:var(--slate-600);
}

/* 首屏 */
.page-about .about-hero{
  position:relative;
  isolation:isolate;
  overflow:hidden;
  background:var(--ink-900);
  color:var(--paper);
  padding:clamp(34px,6vw,68px) 0 clamp(50px,8vw,100px);
}
.page-about .about-hero::before{
  content:"";
  position:absolute;
  inset:-12% -8% auto -8%;
  height:150%;
  z-index:-1;
  background-image:
    linear-gradient(rgba(201,162,39,.13) 1px,transparent 1px),
    linear-gradient(90deg,rgba(201,162,39,.13) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-mask-image:linear-gradient(155deg,#000 0%,rgba(0,0,0,.36) 52%,transparent 84%);
  mask-image:linear-gradient(155deg,#000 0%,rgba(0,0,0,.36) 52%,transparent 84%);
}
.page-about .about-hero::after{
  content:"";
  position:absolute;
  left:-10%;
  right:-10%;
  top:56%;
  height:1px;
  z-index:-1;
  background:linear-gradient(90deg,transparent,rgba(201,162,39,.72),transparent);
  transform:rotate(-12deg);
}
.page-about .about-hero__grid{
  display:grid;
  gap:clamp(24px,4vw,40px);
}
.page-about .about-hero__side{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding-top:4px;
}
.page-about .about-hero__side .eyebrow{
  color:var(--gold-500);
}
.page-about .about-hero__since{
  font-size:13px;
  letter-spacing:.3em;
  color:var(--gold-500);
}
.page-about .about-hero__sidenote{
  max-width:26ch;
  font-size:13px;
  line-height:1.75;
  color:var(--slate-200);
}
.page-about .about-hero .h-display{
  margin:0 0 20px;
  color:var(--paper);
}
.page-about .about-hero .lede{
  margin:0;
  max-width:58ch;
  color:rgba(245,242,234,.84);
}

/* 首屏数据条 */
.page-about .about-stats{
  list-style:none;
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px 18px;
  margin:32px 0 0;
  padding:24px 0 0;
  border-top:1px solid rgba(245,242,234,.16);
}
.page-about .about-stats li{
  display:flex;
  flex-direction:column;
  gap:6px;
}
.page-about .about-stats__num{
  font-size:clamp(26px,3.4vw,38px);
  line-height:1;
  color:var(--gold-200);
  font-variant-numeric:tabular-nums;
}
.page-about .about-stats__label{
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--slate-200);
}

/* 起点 */
.page-about .about-origin__grid{
  display:grid;
  gap:32px;
}
.page-about .about-origin__text .h-section{
  margin:10px 0 20px;
}
.page-about .about-origin__text .body-copy{
  margin:0 0 18px;
  color:var(--black);
}
.page-about .about-origin__panel{
  background:var(--ink-700);
  color:var(--paper);
  border:1px solid var(--about-line);
  border-radius:12px;
  box-shadow:var(--shadow-soft);
  padding:26px 24px 28px;
}
.page-about .about-origin__panel-title{
  margin:0 0 18px;
  font-family:var(--font-display);
  font-weight:600;
  font-size:17px;
  letter-spacing:.04em;
  color:var(--gold-200);
}
.page-about .about-list{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.page-about .about-list li{
  position:relative;
  padding-left:18px;
  font-size:14.5px;
  line-height:1.75;
  color:rgba(245,242,234,.88);
}
.page-about .about-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:10px;
  width:7px;
  height:7px;
  background:var(--gold-500);
  transform:rotate(45deg);
}

/* 四类内容 */
.page-about .about-assets__head{
  max-width:62ch;
}
.page-about .about-assets__head .h-section{
  margin:10px 0 18px;
}
.page-about .about-assets__lede{
  margin:0;
  color:rgba(245,242,234,.82);
}
.page-about .about-assets__figure{
  margin:36px 0 0;
  overflow:hidden;
  border-radius:12px;
}
.page-about .about-assets__figure img{
  display:block;
  width:100%;
  height:auto;
  max-width:100%;
  border-radius:12px;
}
.page-about .about-assets__grid{
  display:grid;
  gap:18px;
  margin-top:34px;
}
.page-about .about-asset{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:22px 20px 24px;
  border-radius:12px;
  border:1px solid var(--about-line);
  background:var(--ink-700);
  transition:transform .35s var(--ease),border-color .25s var(--ease),box-shadow .35s var(--ease);
}
.page-about .about-asset:hover,
.page-about .about-asset:focus-within{
  transform:translateY(-4px);
  border-color:var(--about-line-strong);
  box-shadow:var(--shadow-deep);
}
.page-about .about-asset .card__meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin:0;
}
.page-about .about-asset__num{
  font-size:22px;
  line-height:1;
  color:var(--gold-500);
  letter-spacing:.04em;
}
.page-about .about-asset .card__title{
  margin:0;
  color:var(--paper);
}
.page-about .about-asset .card__text{
  margin:0;
  font-size:15px;
  line-height:1.78;
  color:rgba(245,242,234,.8);
}
.page-about .about-asset__detail{
  margin:auto 0 0;
  padding-top:12px;
  border-top:1px solid rgba(245,242,234,.14);
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--gold-200);
}
.page-about .about-asset:hover .about-asset__num{
  color:var(--cinnabar-400);
}

/* 版本时间线 */
.page-about .about-timeline__head{
  max-width:62ch;
}
.page-about .about-timeline__head .h-section{
  margin:10px 0 18px;
}
.page-about .about-timeline__head .body-copy{
  margin:0;
  color:var(--slate-600);
}
.page-about .about-timeline__grid{
  display:grid;
  gap:26px;
  margin-top:38px;
}
.page-about .about-rail{
  position:relative;
}
.page-about .about-rail ol{
  position:relative;
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:14px 18px;
}
.page-about .about-rail li{
  position:relative;
  padding-left:26px;
}
.page-about .about-rail li::before{
  content:"";
  position:absolute;
  left:0;
  top:5px;
  width:13px;
  height:13px;
  border-radius:50%;
  border:1px solid var(--gold-500);
  background:var(--paper);
  box-shadow:0 0 0 3px rgba(201,162,39,.12);
}
.page-about .about-rail a{
  display:block;
  text-decoration:none;
  color:var(--ink-700);
}
.page-about .about-rail a .mono{
  display:block;
  font-size:15px;
  letter-spacing:.1em;
  color:var(--gold-500);
}
.page-about .about-rail__label{
  display:block;
  margin-top:2px;
  font-size:12.5px;
  letter-spacing:.04em;
  color:var(--slate-600);
}
.page-about .about-rail a:hover .about-rail__label,
.page-about .about-rail a:focus-visible .about-rail__label{
  color:var(--cinnabar-600);
}
.page-about .about-timeline__figure{
  margin:0 0 26px;
  overflow:hidden;
  border-radius:12px;
}
.page-about .about-timeline__figure img{
  display:block;
  width:100%;
  height:auto;
  max-width:100%;
  border-radius:12px;
}
.page-about .about-stage{
  position:relative;
  padding:22px 20px 24px;
  border:1px solid var(--line-dark);
  border-left:3px solid var(--gold-500);
  border-radius:0 12px 12px 0;
  background:rgba(255,255,255,.55);
  box-shadow:var(--shadow-soft);
  scroll-margin-top:110px;
  transition:background .3s var(--ease),border-left-color .3s var(--ease);
}
.page-about .about-stage + .about-stage{
  margin-top:18px;
}
.page-about .about-stage:hover{
  background:rgba(201,162,39,.08);
}
.page-about .about-stage:target{
  background:rgba(201,162,39,.1);
  border-left-color:var(--cinnabar-600);
}
.page-about .about-stage__meta{
  margin:0 0 10px;
  font-size:12.5px;
  letter-spacing:.1em;
  color:var(--slate-600);
}
.page-about .about-stage .h-sub{
  margin:0 0 12px;
  color:var(--ink-900);
}
.page-about .about-stage .body-copy{
  margin:0;
  color:var(--black);
}

/* 团队分工 */
.page-about .about-team__head{
  max-width:64ch;
}
.page-about .about-team__head .h-section{
  margin:10px 0 18px;
}
.page-about .about-team__head .body-copy{
  margin:0;
  color:rgba(245,242,234,.82);
}
.page-about .about-bars{
  display:grid;
  gap:26px;
  margin-top:40px;
}
.page-about .about-bar{
  padding-bottom:22px;
  border-bottom:1px solid rgba(245,242,234,.12);
}
.page-about .about-bar:last-child{
  border-bottom:none;
  padding-bottom:0;
}
.page-about .about-bar__head{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:14px;
  margin-bottom:12px;
}
.page-about .about-bar__name{
  margin:0;
  color:var(--paper);
}
.page-about .about-bar__count{
  font-size:14px;
  letter-spacing:.08em;
  color:var(--gold-200);
  font-variant-numeric:tabular-nums;
}
.page-about .about-bar__track{
  height:8px;
  border-radius:99px;
  background:rgba(245,242,234,.12);
  overflow:hidden;
}
.page-about .about-bar__fill{
  display:block;
  height:100%;
  border-radius:99px;
  background:linear-gradient(90deg,var(--gold-500),var(--gold-200));
  transition:background .3s var(--ease),width .6s var(--ease);
}
.page-about .about-bar--6 .about-bar__fill{width:33.3%;}
.page-about .about-bar--5 .about-bar__fill{width:27.8%;}
.page-about .about-bar--4 .about-bar__fill{width:22.2%;}
.page-about .about-bar--3 .about-bar__fill{width:16.7%;}
.page-about .about-bar__duty{
  margin:12px 0 0;
  font-size:14.5px;
  line-height:1.75;
  color:rgba(245,242,234,.74);
  transition:color .3s var(--ease);
}
.page-about .about-bar:hover .about-bar__duty{
  color:var(--paper);
}
.page-about .about-bar:hover .about-bar__fill{
  background:linear-gradient(90deg,var(--cinnabar-600),var(--cinnabar-400));
}

/* 更新节奏 */
.page-about .about-verify__grid{
  display:grid;
  gap:34px;
}
.page-about .about-verify__text .h-section{
  margin:10px 0 20px;
}
.page-about .about-verify__text .body-copy{
  margin:0 0 18px;
  color:var(--black);
}
.page-about .about-quote{
  margin:0;
  padding:6px 0 6px 22px;
  border-left:3px solid var(--gold-500);
  align-self:start;
}
.page-about .about-quote p{
  margin:0;
  font-family:var(--font-display);
  font-weight:600;
  font-size:clamp(20px,2.4vw,27px);
  line-height:1.62;
  letter-spacing:.01em;
  color:var(--ink-700);
}
.page-about .about-quote__source{
  margin-top:16px;
  font-size:13px;
  letter-spacing:.1em;
  color:var(--slate-600);
}

/* 服务地区与联系 */
.page-about .about-region{
  position:relative;
  overflow:hidden;
  background:var(--ink-900);
  color:var(--paper);
  padding:0;
}
.page-about .about-region__texture{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:.2;
  z-index:0;
}
.page-about .about-region__inner{
  position:relative;
  z-index:1;
  padding-top:clamp(48px,8vw,92px);
  padding-bottom:clamp(48px,8vw,92px);
}
.page-about .about-region__inner .eyebrow{
  color:var(--gold-500);
}
.page-about .about-region__inner .h-section{
  margin:10px 0 20px;
  color:var(--paper);
  max-width:22ch;
}
.page-about .about-region__copy{
  margin:0 0 16px;
  max-width:60ch;
  color:rgba(245,242,234,.82);
}
.page-about .about-region__links{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:28px;
}

/* 平板与桌面 */
@media (min-width:640px){
  .page-about .about-stats{
    grid-template-columns:repeat(4,minmax(0,1fr));
  }
  .page-about .about-assets__grid{
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:20px;
  }
  .page-about .about-assets__grid > .about-asset:nth-child(even){
    margin-top:36px;
  }
  .page-about .about-bars{
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:30px 40px;
  }
  .page-about .about-bar{
    border-bottom:none;
    padding-bottom:0;
  }
}

@media (min-width:900px){
  .page-about .about-hero__grid{
    grid-template-columns:minmax(0,4fr) minmax(0,8fr);
    gap:clamp(32px,5vw,72px);
    align-items:start;
  }
  .page-about .about-hero__side{
    gap:16px;
    padding-top:10px;
    border-right:1px solid rgba(245,242,234,.14);
    padding-right:24px;
    min-height:220px;
  }
  .page-about .about-origin__grid{
    grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);
    gap:clamp(36px,5vw,76px);
    align-items:start;
  }
  .page-about .about-timeline__grid{
    grid-template-columns:190px minmax(0,1fr);
    gap:clamp(30px,4vw,64px);
    align-items:start;
  }
  .page-about .about-rail{
    position:sticky;
    top:96px;
    align-self:start;
  }
  .page-about .about-rail ol{
    display:block;
    padding-left:2px;
  }
  .page-about .about-rail ol::before{
    content:"";
    position:absolute;
    left:8px;
    top:8px;
    bottom:8px;
    width:1px;
    background:linear-gradient(180deg,var(--gold-500),rgba(201,162,39,.15));
  }
  .page-about .about-rail li{
    padding-left:28px;
    margin-bottom:30px;
  }
  .page-about .about-rail li:last-child{
    margin-bottom:0;
  }
  .page-about .about-verify__grid{
    grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);
    gap:clamp(36px,5vw,80px);
    align-items:start;
  }
  .page-about .about-quote{
    margin-top:8px;
  }
  .page-about .about-assets__grid{
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:24px 28px;
  }
}

@media (prefers-reduced-motion:reduce){
  .page-about .about-asset,
  .page-about .about-bar__fill,
  .page-about .about-bar__duty,
  .page-about .about-stage{
    transition:none;
  }
  .page-about .about-asset:hover{
    transform:none;
  }
}
<<<PAGE_CSS_END>>>