/* ============ page-about ============ */
.page-about{
  --about-line:rgba(214,165,74,.30);
  --about-line-soft:rgba(143,166,191,.20);
  --about-panel:linear-gradient(158deg,rgba(18,60,105,.62),rgba(11,37,69,.30));
}

.page-about .crumbs{
  padding:16px 0 0;
}
.page-about .crumbs__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin:0;
  padding:0;
  list-style:none;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--ink-dim);
}
.page-about .crumbs__list a{
  color:var(--c-mist);
  text-decoration:none;
}
.page-about .crumbs__list a:hover,
.page-about .crumbs__list a:focus-visible{
  color:var(--c-gold-bright);
}
.page-about .crumbs__list li+li::before{
  content:"/";
  margin-right:8px;
  color:var(--c-gold);
  opacity:.55;
}
.page-about .crumbs__list li[aria-current]{
  color:var(--c-gold-bright);
}

/* ---- 版面节奏 ---- */
.page-about .section{
  padding:52px 0;
}
@media (min-width:900px){
  .page-about .section{
    padding:86px 0;
  }
}

.page-about .section-head{
  position:relative;
  margin-bottom:32px;
}
.page-about .section-head h2{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(24px,4.2vw,38px);
  line-height:1.24;
  letter-spacing:.01em;
  color:var(--c-paper);
  margin:10px 0 0;
  max-width:22em;
}

/* ---- 首屏 ---- */
.page-about .about-hero{
  position:relative;
  padding:34px 0 56px;
  isolation:isolate;
  overflow:hidden;
}
.page-about .about-hero::before{
  content:"";
  position:absolute;
  top:-18%;
  right:-24%;
  width:min(820px,92vw);
  height:620px;
  z-index:-1;
  background:
    radial-gradient(circle at 68% 32%,rgba(214,165,74,.16),transparent 62%),
    linear-gradient(144deg,rgba(18,60,105,.62),rgba(7,26,51,0) 72%);
  clip-path:polygon(20% 0,100% 0,100% 100%,0 76%);
}
.page-about .about-hero__grid{
  display:grid;
  gap:34px;
  align-items:center;
}
.page-about .about-hero__copy h1{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(29px,6.2vw,60px);
  line-height:1.16;
  letter-spacing:-.01em;
  color:var(--c-paper);
  margin:12px 0 0;
  max-width:15em;
}
.page-about .about-hero__lead{
  font-family:var(--font-body);
  font-size:clamp(15px,1.7vw,18px);
  line-height:1.85;
  color:var(--ink-2);
  margin:20px 0 0;
  max-width:34em;
}
.page-about .about-hero__facts{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:10px;
  margin-top:30px;
  padding-top:22px;
  border-top:1px solid var(--about-line-soft);
}
.page-about .about-hero__fact{
  display:flex;
  flex-direction:column;
  gap:4px;
}
.page-about .about-hero__fact b{
  font-family:var(--font-mono);
  font-size:clamp(26px,5vw,38px);
  font-weight:700;
  line-height:1;
  color:var(--c-gold-bright);
}
.page-about .about-hero__fact span{
  font-size:12px;
  letter-spacing:.04em;
  color:var(--ink-dim);
}

.page-about .about-hero__media{
  position:relative;
  margin:0;
  padding:9px;
  background:linear-gradient(136deg,rgba(214,165,74,.55),rgba(214,165,74,.05) 62%);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 40px),calc(100% - 40px) 100%,0 100%);
}
.page-about .about-hero__media img{
  display:block;
  width:100%;
  height:auto;
  max-width:100%;
  object-fit:cover;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 34px),calc(100% - 34px) 100%,0 100%);
}

@media (min-width:900px){
  .page-about .about-hero{
    padding:52px 0 88px;
  }
  .page-about .about-hero__grid{
    grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);
    gap:56px;
  }
}

/* ---- 起点 ---- */
.page-about .about-origin__grid{
  display:grid;
  gap:32px;
}
.page-about .about-origin__copy h2{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(23px,4vw,36px);
  line-height:1.25;
  color:var(--c-paper);
  margin:10px 0 0;
}
.page-about .about-origin__copy p{
  font-family:var(--font-body);
  font-size:15.5px;
  line-height:1.9;
  color:var(--ink-2);
  margin:16px 0 0;
  max-width:36em;
}
.page-about .about-origin__aside{
  padding:26px 22px;
  background:var(--about-panel);
  border-left:3px solid var(--c-gold);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 26px),calc(100% - 26px) 100%,0 100%);
}
.page-about .about-origin__tag{
  margin:0;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--c-gold);
}
.page-about .about-origin__quote{
  margin:12px 0 18px;
  font-family:var(--font-display);
  font-size:18px;
  font-weight:700;
  line-height:1.6;
  color:var(--c-paper);
}
.page-about .about-origin__list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:10px;
}
.page-about .about-origin__list li{
  position:relative;
  padding-left:16px;
  font-size:13.5px;
  line-height:1.7;
  color:var(--ink-2);
}
.page-about .about-origin__list li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:6px;
  height:6px;
  background:var(--c-teal);
  transform:rotate(45deg);
}

@media (min-width:900px){
  .page-about .about-origin__grid{
    grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);
    gap:56px;
    align-items:start;
  }
}

/* ---- 时间轴 ---- */
.page-about .about-timeline{
  background:linear-gradient(180deg,rgba(11,37,69,.55),rgba(7,26,51,0) 78%);
}
.page-about .about-timeline__figure{
  margin:0 0 40px;
  border:1px solid var(--about-line-soft);
  border-top:2px solid var(--c-gold);
  background:rgba(18,60,105,.24);
}
.page-about .about-timeline__figure img{
  display:block;
  width:100%;
  height:auto;
  max-width:100%;
  object-fit:cover;
}
.page-about .about-timeline__figure figcaption{
  padding:12px 16px;
  font-size:12.5px;
  line-height:1.7;
  color:var(--ink-dim);
  border-top:1px solid var(--about-line-soft);
}

.page-about .timeline{
  position:relative;
  list-style:none;
  margin:0;
  padding:0 0 0 30px;
  display:grid;
  gap:24px;
}
.page-about .timeline::before{
  content:"";
  position:absolute;
  left:7px;
  top:8px;
  bottom:8px;
  width:2px;
  background:linear-gradient(180deg,var(--c-gold),rgba(214,165,74,.10));
}
.page-about .timeline__item{
  position:relative;
  display:grid;
  gap:8px;
}
.page-about .timeline__item::before{
  content:"";
  position:absolute;
  left:-30px;
  top:8px;
  width:12px;
  height:12px;
  background:var(--c-gold);
  transform:rotate(45deg);
  outline:3px solid var(--c-deep);
}
.page-about .timeline__year{
  font-family:var(--font-mono);
  font-size:15px;
  font-weight:700;
  letter-spacing:.1em;
  color:var(--c-gold-bright);
}
.page-about .timeline__card{
  padding:18px 18px 20px;
  background:var(--about-panel);
  border:1px solid var(--about-line-soft);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 20px),calc(100% - 20px) 100%,0 100%);
}
.page-about .timeline__card h3{
  margin:0;
  font-family:var(--font-display);
  font-size:17px;
  font-weight:700;
  line-height:1.45;
  color:var(--c-paper);
}
.page-about .timeline__card p{
  margin:8px 0 0;
  font-size:14px;
  line-height:1.8;
  color:var(--ink-2);
}

@media (min-width:820px){
  .page-about .timeline{
    padding-left:0;
    gap:20px;
  }
  .page-about .timeline::before{
    left:96px;
  }
  .page-about .timeline__item{
    padding-left:140px;
    gap:0;
  }
  .page-about .timeline__item::before{
    left:91px;
    top:26px;
  }
  .page-about .timeline__year{
    position:absolute;
    left:0;
    top:22px;
    width:76px;
    text-align:right;
    font-size:17px;
  }
  .page-about .timeline__card{
    padding:22px 26px 24px;
    transition:border-color .3s var(--ease),transform .3s var(--ease);
  }
  .page-about .timeline__item:hover .timeline__card{
    border-color:var(--about-line);
    transform:translateX(4px);
  }
}

/* ---- 数据与编辑 ---- */
.page-about .about-editorial__grid{
  display:grid;
  gap:32px;
}
.page-about .about-editorial__figure{
  margin:0;
  border:1px solid var(--about-line-soft);
  background:rgba(18,60,105,.22);
}
.page-about .about-editorial__figure img{
  display:block;
  width:100%;
  height:auto;
  max-width:100%;
  object-fit:cover;
}
.page-about .about-editorial__figure figcaption{
  padding:12px 16px;
  font-size:12.5px;
  line-height:1.7;
  color:var(--ink-dim);
  border-top:1px solid var(--about-line-soft);
}
.page-about .about-editorial__copy p{
  font-family:var(--font-body);
  font-size:15.5px;
  line-height:1.9;
  color:var(--ink-2);
  margin:0 0 16px;
}
.page-about .about-editorial__roles{
  list-style:none;
  margin:26px 0 0;
  padding:0;
  display:grid;
  gap:1px;
  background:var(--about-line-soft);
  border-top:1px solid var(--about-line);
  border-bottom:1px solid var(--about-line);
}
.page-about .about-editorial__roles li{
  display:grid;
  gap:4px;
  padding:14px 16px;
  background:rgba(11,37,69,.72);
}
.page-about .about-editorial__roles b{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.2em;
  color:var(--c-gold);
}
.page-about .about-editorial__roles span{
  font-size:13.5px;
  line-height:1.7;
  color:var(--ink-2);
}

@media (min-width:860px){
  .page-about .about-editorial__grid{
    grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);
    gap:52px;
    align-items:start;
  }
}

/* ---- 栏目覆盖 ---- */
.page-about .coverage-band{
  display:grid;
  gap:1px;
  background:var(--about-line-soft);
  border-top:1px solid var(--about-line);
  border-bottom:1px solid var(--about-line);
  margin:0 0 44px;
}
.page-about .coverage-band__cell{
  display:flex;
  flex-direction:column;
  gap:6px;
  padding:24px 20px;
  background:linear-gradient(158deg,rgba(18,60,105,.52),rgba(11,37,69,.22));
}
.page-about .coverage-band__num{
  font-family:var(--font-mono);
  font-size:clamp(30px,5.4vw,46px);
  font-weight:700;
  line-height:1;
  color:var(--c-gold-bright);
  letter-spacing:-.02em;
}
.page-about .coverage-band__unit{
  font-size:.46em;
  margin-left:2px;
  color:var(--c-gold);
}
.page-about .coverage-band__label{
  font-size:12.5px;
  letter-spacing:.04em;
  color:var(--ink-dim);
}

.page-about .coverage-list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:16px;
}
.page-about .coverage-list__item{
  position:relative;
  padding:22px 20px 24px;
  border:1px solid var(--about-line-soft);
  background:rgba(18,60,105,.20);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 20px),calc(100% - 20px) 100%,0 100%);
  transition:border-color .3s var(--ease),background .3s var(--ease);
}
.page-about .coverage-list__item:hover{
  border-color:var(--about-line);
  background:rgba(18,60,105,.34);
}
.page-about .coverage-list__idx{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.18em;
  color:var(--c-gold);
}
.page-about .coverage-list__item h3{
  margin:8px 0 0;
  font-family:var(--font-display);
  font-size:18px;
  font-weight:700;
  color:var(--c-paper);
}
.page-about .coverage-list__item p{
  margin:8px 0 0;
  font-size:13.8px;
  line-height:1.8;
  color:var(--ink-2);
}

@media (min-width:640px){
  .page-about .coverage-band{
    grid-template-columns:repeat(4,minmax(0,1fr));
  }
  .page-about .coverage-list{
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:18px;
  }
}
@media (min-width:1024px){
  .page-about .coverage-list{
    grid-template-columns:repeat(3,minmax(0,1fr));
  }
  .page-about .coverage-list__item:nth-child(2){
    transform:translateY(-14px);
  }
  .page-about .coverage-list__item:nth-child(5){
    transform:translateY(-14px);
  }
}

/* ---- 多终端 ---- */
.page-about .terminal-grid{
  display:grid;
  gap:16px;
}
.page-about .terminal-card{
  position:relative;
  padding:24px 20px 26px;
  border-top:2px solid var(--c-teal);
  background:linear-gradient(158deg,rgba(18,60,105,.42),rgba(11,37,69,.18));
  transition:border-color .3s var(--ease),transform .3s var(--ease);
}
.page-about .terminal-card h3{
  margin:0;
  font-family:var(--font-display);
  font-size:17px;
  font-weight:700;
  color:var(--c-paper);
}
.page-about .terminal-card p{
  margin:10px 0 0;
  font-size:13.8px;
  line-height:1.8;
  color:var(--ink-2);
}
@media (min-width:760px){
  .page-about .terminal-grid{
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:18px;
  }
  .page-about .terminal-card:hover{
    border-color:var(--c-cyan);
    transform:translateY(-3px);
  }
}
@media (min-width:1120px){
  .page-about .terminal-grid{
    grid-template-columns:repeat(4,minmax(0,1fr));
  }
}

.page-about .about-terminals__note{
  margin:28px 0 0;
  padding:18px 20px;
  border-left:3px solid var(--c-teal);
  background:rgba(47,175,143,.08);
  font-family:var(--font-body);
  font-size:14.5px;
  line-height:1.85;
  color:var(--ink-2);
  max-width:62em;
}

/* ---- 服务与本地连接 ---- */
.page-about .about-service{
  background:linear-gradient(180deg,rgba(11,37,69,.5),rgba(7,26,51,0) 82%);
}
.page-about .about-service__grid{
  display:grid;
  gap:32px;
}
.page-about .about-service__copy h2{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(23px,4vw,36px);
  line-height:1.26;
  color:var(--c-paper);
  margin:10px 0 0;
  max-width:18em;
}
.page-about .about-service__copy p{
  font-family:var(--font-body);
  font-size:15.5px;
  line-height:1.9;
  color:var(--ink-2);
  margin:16px 0 0;
  max-width:38em;
}
.page-about .about-service__list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:1px;
  background:var(--about-line-soft);
  border-top:1px solid var(--about-line);
  border-bottom:1px solid var(--about-line);
  align-self:start;
}
.page-about .about-service__list li{
  display:grid;
  gap:4px;
  padding:16px 18px;
  background:rgba(11,37,69,.76);
}
.page-about .about-service__key{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.2em;
  color:var(--c-gold);
}
.page-about .about-service__val{
  font-size:13.8px;
  line-height:1.7;
  color:var(--c-paper);
  word-break:break-word;
}

@media (min-width:900px){
  .page-about .about-service__grid{
    grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);
    gap:52px;
  }
}

/* ---- 团队 ---- */
.page-about .team-grid{
  display:grid;
  gap:16px;
}
.page-about .team-card{
  position:relative;
  padding:24px 20px 26px;
  background:rgba(18,60,105,.24);
  border:1px solid var(--about-line-soft);
  transition:border-color .3s var(--ease),background .3s var(--ease),transform .3s var(--ease);
}
.page-about .team-card__idx{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.2em;
  color:var(--c-vermilion);
}
.page-about .team-card h3{
  margin:8px 0 0;
  font-family:var(--font-display);
  font-size:17px;
  font-weight:700;
  color:var(--c-paper);
}
.page-about .team-card p{
  margin:10px 0 0;
  font-size:13.8px;
  line-height:1.8;
  color:var(--ink-2);
}
.page-about .team-card:hover,
.page-about .team-card:focus-within{
  border-color:var(--about-line);
  background:rgba(18,60,105,.4);
  transform:translateY(-3px);
}

@media (min-width:700px){
  .page-about .team-grid{
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:18px;
  }
}
@media (min-width:1100px){
  .page-about .team-grid{
    grid-template-columns:repeat(4,minmax(0,1fr));
  }
}

.page-about .about-team__partners{
  margin-top:32px;
  padding:24px 22px;
  border:1px dashed var(--about-line);
  background:rgba(212,165,74,.05);
}
.page-about .about-team__partners-title{
  margin:0 0 14px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.24em;
  color:var(--c-gold);
}
.page-about .about-team__partners-list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:10px;
}
.page-about .about-team__partners-list li{
  position:relative;
  padding-left:18px;
  font-size:13.8px;
  line-height:1.8;
  color:var(--ink-2);
}
.page-about .about-team__partners-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:10px;
  width:8px;
  height:1px;
  background:var(--c-gold);
}

/* ---- 收尾 ---- */
.page-about .about-next{
  position:relative;
  margin-top:36px;
  padding:52px 0 0;
  background:linear-gradient(160deg,rgba(18,60,105,.5),rgba(7,26,51,.9));
  border-top:1px solid var(--about-line);
  overflow:hidden;
}
.page-about .about-next__inner{
  display:grid;
  gap:28px;
  padding-bottom:18px;
}
.page-about .about-next__copy h2{
  margin:0;
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(22px,4vw,32px);
  line-height:1.3;
  color:var(--c-paper);
  max-width:20em;
}
.page-about .about-next__copy p{
  margin:14px 0 0;
  font-family:var(--font-body);
  font-size:14.5px;
  line-height:1.85;
  color:var(--ink-2);
  max-width:40em;
}
.page-about .about-next__links{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.page-about .about-next__wave{
  display:block;
  width:100%;
  height:90px;
}
@media (min-width:900px){
  .page-about .about-next{
    padding-top:70px;
  }
  .page-about .about-next__inner{
    grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);
    gap:48px;
    align-items:center;
    padding-bottom:28px;
  }
  .page-about .about-next__links{
    justify-content:flex-end;
  }
  .page-about .about-next__wave{
    height:120px;
  }
}

/* ---- 无障碍与动效收敛 ---- */
.page-about a:focus-visible,
.page-about button:focus-visible{
  outline:2px solid var(--c-gold-bright);
  outline-offset:3px;
}

@media (prefers-reduced-motion:reduce){
  .page-about *{
    transition:none !important;
    animation:none !important;
  }
  .page-about .coverage-list__item:nth-child(2),
  .page-about .coverage-list__item:nth-child(5),
  .page-about .team-card:hover,
  .page-about .team-card:focus-within,
  .page-about .terminal-card:hover,
  .page-about .timeline__item:hover .timeline__card{
    transform:none !important;
  }
}