.page-contact{
  --c-line:2px solid var(--by-line-strong);
  --c-pad:clamp(18px,3vw,32px);
  --c-gap:clamp(20px,3vw,36px);
  --c-amber-glow:rgba(217,153,50,.16);
  display:block;
  background:var(--by-paper);
  color:var(--by-ink);
  font-family:var(--by-font-cn);
  padding-bottom:clamp(40px,6vw,84px);
}

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

.page-contact .by-crumbs{
  padding-top:clamp(14px,2vw,22px);
}

.page-contact a{
  color:inherit;
}

/* ---------- 首屏 ---------- */
.page-contact .c-hero{
  display:grid;
  gap:clamp(20px,3vw,34px);
  padding-top:clamp(22px,4vw,42px);
  padding-bottom:clamp(26px,4vw,46px);
  border-bottom:var(--c-line);
}

.page-contact .c-hero__title{
  margin:.35em 0 0;
  font-size:clamp(32px,6.4vw,62px);
  line-height:1.08;
  letter-spacing:-.02em;
  font-weight:900;
  color:var(--by-indigo);
}

.page-contact .c-hero__lede{
  margin-top:clamp(14px,2vw,20px);
  max-width:60ch;
  color:var(--by-ink);
  font-size:clamp(15px,1.6vw,17px);
  line-height:1.8;
}

.page-contact .c-hero__sidek{
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--by-indigo-soft);
  margin:0 0 10px;
}

.page-contact .c-jump{
  list-style:none;
  margin:0;
  padding:0;
  border-top:var(--c-line);
}

.page-contact .c-jump li{
  border-bottom:1px solid var(--by-line);
}

.page-contact .c-jump a{
  display:flex;
  align-items:baseline;
  gap:12px;
  padding:11px 4px;
  text-decoration:none;
  font-weight:700;
  font-size:15px;
  color:var(--by-indigo);
  transition:background .22s var(--by-ease),padding-left .22s var(--by-ease);
}

.page-contact .c-jump a:hover,
.page-contact .c-jump a:focus-visible{
  background:var(--by-mist);
  padding-left:12px;
}

.page-contact .c-jump .by-mono{
  font-size:12px;
  color:var(--by-amber);
  font-weight:400;
}

/* ---------- 联系渠道 + 咨询准备 ---------- */
.page-contact .c-contact{
  display:grid;
  gap:var(--c-gap);
  padding-top:clamp(30px,5vw,56px);
  padding-bottom:clamp(30px,5vw,56px);
}

.page-contact .c-chancard{
  position:relative;
  background:linear-gradient(158deg,var(--by-indigo) 0%,var(--by-midnight) 100%);
  color:var(--by-paper);
  border:2px solid var(--by-midnight);
  box-shadow:8px 8px 0 rgba(27,42,91,.2);
  padding:var(--c-pad);
}

.page-contact .c-chancard__tag{
  margin:0;
  font-size:11px;
  letter-spacing:.24em;
  color:var(--by-celadon-light);
}

.page-contact .c-chancard__title{
  margin:.5em 0 1.1em;
  font-size:clamp(20px,2.6vw,26px);
  line-height:1.3;
  font-weight:900;
  color:var(--by-paper);
}

.page-contact .c-chan{
  padding:clamp(14px,2vw,18px) 0;
  border-top:1px solid rgba(247,244,237,.24);
}

.page-contact .c-chan:last-child{
  padding-bottom:0;
}

.page-contact .c-chan__k{
  display:flex;
  align-items:center;
  gap:8px;
  margin:0 0 8px;
  font-size:11px;
  letter-spacing:.14em;
  color:rgba(247,244,237,.72);
}

.page-contact .c-dot{
  width:9px;
  height:9px;
  display:inline-block;
  background:var(--by-amber);
}

.page-contact .c-dot--celadon{ background:var(--by-celadon); }
.page-contact .c-dot--light{ background:var(--by-amber-light); }

.page-contact .c-chan__mail{
  margin:0;
  font-size:clamp(15px,2.9vw,22px);
  font-weight:600;
  line-height:1.35;
  word-break:break-all;
  color:var(--by-paper);
}

.page-contact .c-chan__tel{
  margin:0;
  font-size:clamp(28px,6vw,44px);
  font-weight:700;
  line-height:1.1;
  letter-spacing:-.01em;
  color:var(--by-amber-light);
}

.page-contact .c-chan__addr{
  margin:0;
  font-size:clamp(15px,2vw,18px);
  font-weight:700;
  line-height:1.6;
  color:var(--by-paper);
}

.page-contact .c-chan__n{
  margin:9px 0 0;
  font-size:13.5px;
  line-height:1.7;
  color:rgba(247,244,237,.78);
}

.page-contact .c-contact__right{
  display:grid;
  gap:var(--c-gap);
  align-content:start;
}

.page-contact .c-prepcard{
  background:var(--by-paper);
  border:var(--c-line);
  box-shadow:8px 8px 0 rgba(27,42,91,.12);
  padding:var(--c-pad);
}

.page-contact .c-prepcard__index{
  margin:0 0 8px;
  font-size:11px;
  letter-spacing:.22em;
  color:var(--by-amber);
}

.page-contact .c-prepcard__title{
  margin:0;
  font-size:clamp(21px,3vw,29px);
  line-height:1.25;
  font-weight:900;
  color:var(--by-indigo);
}

.page-contact .c-prepcard__sub{
  margin:10px 0 clamp(16px,2vw,22px);
  font-size:14.5px;
  line-height:1.75;
  color:rgba(20,22,28,.78);
}

.page-contact .c-checks{
  display:grid;
  gap:10px;
}

.page-contact .c-check{
  position:relative;
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:13px 14px;
  border:2px solid var(--by-line);
  background:var(--by-mist);
  cursor:pointer;
  transition:border-color .22s var(--by-ease),background .22s var(--by-ease);
}

.page-contact .c-check:hover{
  border-color:var(--by-line-strong);
}

.page-contact .c-check input{
  position:absolute;
  width:1px;
  height:1px;
  opacity:0;
  pointer-events:none;
}

.page-contact .c-check__box{
  flex:0 0 auto;
  width:20px;
  height:20px;
  margin-top:2px;
  border:2px solid var(--by-indigo);
  background:var(--by-paper);
  display:grid;
  place-items:center;
  transition:background .2s var(--by-ease),border-color .2s var(--by-ease);
}

.page-contact .c-check__box::after{
  content:"";
  width:10px;
  height:5px;
  border-left:2px solid var(--by-paper);
  border-bottom:2px solid var(--by-paper);
  transform:rotate(-45deg) scale(0);
  transition:transform .2s var(--by-ease);
}

.page-contact .c-check input:checked ~ .c-check__box{
  background:var(--by-celadon);
  border-color:var(--by-celadon);
}

.page-contact .c-check input:checked ~ .c-check__box::after{
  transform:rotate(-45deg) scale(1);
}

.page-contact .c-check input:focus-visible ~ .c-check__box{
  outline:2px solid var(--by-amber);
  outline-offset:2px;
}

.page-contact .c-check__text{
  display:block;
  font-size:14px;
  line-height:1.6;
}

.page-contact .c-check__text b{
  display:block;
  font-size:15px;
  font-weight:700;
  color:var(--by-indigo);
}

.page-contact .c-check__text em{
  display:block;
  font-style:normal;
  font-size:13px;
  line-height:1.65;
  color:rgba(20,22,28,.7);
}

.page-contact .c-check input:checked ~ .c-check__text em{
  color:var(--by-celadon);
}

.page-contact .c-prepcard__hint{
  margin:clamp(16px,2vw,22px) 0 0;
  padding:12px 14px;
  border-left:4px solid var(--by-amber);
  background:var(--c-amber-glow);
  font-size:13.5px;
  line-height:1.7;
}

.page-contact .c-prepcard__hint a{
  color:var(--by-indigo);
  font-weight:700;
  text-decoration:underline;
  text-underline-offset:3px;
}

.page-contact .c-prepfig{
  margin:0;
}

.page-contact .c-prepfig .by-figure__frame{
  border:var(--c-line);
  background:var(--by-mist);
  overflow:hidden;
}

.page-contact .c-prepfig img{
  width:100%;
  object-fit:cover;
}

/* ---------- 服务区域 ---------- */
.page-contact .c-network{
  background:var(--by-midnight);
  color:var(--by-paper);
  padding:clamp(34px,6vw,64px) 0;
  border-top:2px solid var(--by-midnight);
  border-bottom:2px solid var(--by-midnight);
  background-image:
    linear-gradient(rgba(168,203,191,.13) 1px,transparent 1px),
    linear-gradient(90deg,rgba(168,203,191,.13) 1px,transparent 1px);
  background-size:56px 56px;
}

.page-contact .c-network__inner{
  display:grid;
  gap:var(--c-gap);
  align-items:center;
}

.page-contact .c-network__title{
  margin:.4em 0 0;
  font-size:clamp(23px,3.6vw,36px);
  line-height:1.2;
  font-weight:900;
  color:var(--by-paper);
}

.page-contact .c-network__text{
  margin:14px 0 clamp(18px,2.4vw,24px);
  font-size:15px;
  line-height:1.8;
  color:rgba(247,244,237,.8);
  max-width:56ch;
}

.page-contact .c-kv{
  margin:0;
  display:grid;
  gap:1px;
  background:rgba(247,244,237,.2);
  border:1px solid rgba(247,244,237,.28);
}

.page-contact .c-kv > div{
  display:flex;
  justify-content:space-between;
  align-items:baseline;
  gap:14px;
  padding:11px 14px;
  background:rgba(14,24,56,.92);
}

.page-contact .c-kv dt{
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--by-celadon-light);
}

.page-contact .c-kv dd{
  margin:0;
  font-family:var(--by-font-mono);
  font-size:13.5px;
  font-weight:600;
  color:var(--by-paper);
  text-align:right;
}

.page-contact .c-network__fig{
  margin:0;
}

.page-contact .c-network__fig .by-figure__frame{
  border:2px solid rgba(247,244,237,.42);
  background:rgba(247,244,237,.06);
  overflow:hidden;
}

.page-contact .c-network__fig img{
  width:100%;
  object-fit:cover;
}

.page-contact .c-network__fig .by-figure__caption{
  color:rgba(247,244,237,.72);
}

/* ---------- 合作与渠道 ---------- */
.page-contact .c-partner{
  padding-top:clamp(34px,6vw,64px);
  padding-bottom:clamp(30px,5vw,54px);
}

.page-contact .c-partner__title{
  margin:.4em 0 0;
  max-width:24ch;
  font-size:clamp(23px,3.6vw,36px);
  line-height:1.2;
  font-weight:900;
  color:var(--by-indigo);
}

.page-contact .c-partner__text{
  margin:14px 0 clamp(22px,3vw,30px);
  max-width:62ch;
  font-size:15px;
  line-height:1.8;
  color:rgba(20,22,28,.82);
}

.page-contact .c-partner__grid{
  display:grid;
  gap:16px;
}

.page-contact .c-pcard{
  border:var(--c-line);
  background:var(--by-paper);
  padding:clamp(16px,2.4vw,22px);
  box-shadow:6px 6px 0 rgba(79,143,126,.2);
}

.page-contact .c-pcard__index{
  margin:0 0 10px;
  font-size:11px;
  letter-spacing:.18em;
  color:var(--by-celadon);
}

.page-contact .c-pcard__title{
  margin:0 0 8px;
  font-size:17px;
  font-weight:900;
  line-height:1.35;
  color:var(--by-indigo);
}

.page-contact .c-pcard p{
  margin:0;
  font-size:13.5px;
  line-height:1.75;
  color:rgba(20,22,28,.8);
}

.page-contact .c-partner__foot{
  margin-top:clamp(20px,3vw,28px);
  padding:clamp(16px,2.4vw,24px);
  background:var(--by-mist);
  border:var(--c-line);
}

.page-contact .c-partner__footk{
  margin:0 0 12px;
  font-size:11px;
  letter-spacing:.18em;
  color:var(--by-indigo-soft);
}

.page-contact .c-tags{
  list-style:none;
  margin:0 0 12px;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}

.page-contact .c-tags .by-tag{
  font-size:12.5px;
}

.page-contact .c-partner__footn{
  margin:0;
  font-size:13.5px;
  line-height:1.7;
  color:rgba(20,22,28,.78);
}

/* ---------- 到访与路径 ---------- */
.page-contact .c-visit{
  display:grid;
  gap:var(--c-gap);
  padding-top:clamp(30px,5vw,54px);
  padding-bottom:clamp(20px,3vw,40px);
}

.page-contact .c-visit__mapwrap{
  border:var(--c-line);
  background:var(--by-indigo);
  box-shadow:8px 8px 0 rgba(27,42,91,.16);
  padding:clamp(14px,2vw,20px);
}

.page-contact .c-map{
  position:relative;
  aspect-ratio:4 / 3;
  min-height:220px;
  background-image:
    linear-gradient(rgba(168,203,191,.2) 1px,transparent 1px),
    linear-gradient(90deg,rgba(168,203,191,.2) 1px,transparent 1px);
  background-size:32px 32px;
  border:1px dashed rgba(247,244,237,.32);
}

.page-contact .c-map__node{
  position:absolute;
  display:flex;
  align-items:center;
  gap:6px;
  font-size:11.5px;
  font-weight:700;
  color:var(--by-paper);
  white-space:nowrap;
}

.page-contact .c-map__node i{
  width:9px;
  height:9px;
  display:block;
  background:var(--by-celadon-light);
  border-radius:50%;
}

.page-contact .c-map__node--base{
  left:26%;
  top:24%;
  font-size:13px;
  color:var(--by-amber-light);
}

.page-contact .c-map__node--base i{
  width:14px;
  height:14px;
  background:var(--by-amber);
  box-shadow:0 0 0 5px rgba(217,153,50,.28);
  border-radius:0;
}

.page-contact .c-map__node--n{ left:52%; top:14%; }
.page-contact .c-map__node--c{ left:38%; top:52%; }
.page-contact .c-map__node--e{ left:66%; top:44%; }
.page-contact .c-map__node--s{ left:56%; top:78%; }
.page-contact .c-map__node--w{ left:12%; top:64%; }

.page-contact .c-map__pin{
  position:absolute;
  left:8%;
  bottom:8%;
  padding:5px 9px;
  font-size:11px;
  letter-spacing:.1em;
  background:var(--by-paper);
  color:var(--by-indigo);
  border:2px solid var(--by-midnight);
}

.page-contact .c-visit__title{
  margin:.4em 0 0;
  font-size:clamp(22px,3.4vw,34px);
  line-height:1.22;
  font-weight:900;
  color:var(--by-indigo);
}

.page-contact .c-visit__text{
  margin:14px 0 clamp(18px,2.4vw,24px);
  font-size:15px;
  line-height:1.8;
  color:rgba(20,22,28,.82);
}

.page-contact .c-routes{
  list-style:none;
  margin:0;
  padding:0;
  border-top:var(--c-line);
}

.page-contact .c-routes li{
  border-bottom:1px solid var(--by-line);
}

.page-contact .c-routes a{
  display:block;
  padding:14px 2px;
  text-decoration:none;
  transition:background .22s var(--by-ease),padding-left .22s var(--by-ease);
}

.page-contact .c-routes a:hover,
.page-contact .c-routes a:focus-visible{
  background:var(--by-mist);
  padding-left:12px;
}

.page-contact .c-routes__k{
  display:block;
  font-size:11px;
  letter-spacing:.16em;
  color:var(--by-amber);
  margin-bottom:5px;
}

.page-contact .c-routes__v{
  display:block;
  font-size:14.5px;
  font-weight:700;
  line-height:1.55;
  color:var(--by-indigo);
}

.page-contact .c-visit__note{
  margin:18px 0 0;
  font-size:13px;
  line-height:1.7;
  color:rgba(20,22,28,.68);
}

.page-contact .c-visit__note a{
  color:var(--by-indigo);
  font-weight:700;
  text-decoration:underline;
  text-underline-offset:3px;
}

/* ---------- 响应式 ---------- */
@media (min-width:760px){
  .page-contact .c-partner__grid{
    grid-template-columns:repeat(3,1fr);
  }
  .page-contact .c-network__inner{
    grid-template-columns:6fr 6fr;
  }
}

@media (min-width:920px){
  .page-contact .c-hero{
    grid-template-columns:7fr 5fr;
    align-items:end;
  }
  .page-contact .c-contact{
    grid-template-columns:5fr 7fr;
    align-items:start;
  }
  .page-contact .c-chancard{
    position:sticky;
    top:24px;
  }
  .page-contact .c-network__inner{
    grid-template-columns:5fr 7fr;
  }
  .page-contact .c-visit{
    grid-template-columns:6fr 6fr;
    align-items:start;
  }
}

@media (prefers-reduced-motion:reduce){
  .page-contact .c-jump a,
  .page-contact .c-routes a,
  .page-contact .c-check,
  .page-contact .c-check__box,
  .page-contact .c-check__box::after{
    transition:none;
  }
}