.page-contact{
  --cf-cut:14px;
  --cf-pad:clamp(20px,3vw,28px);
  background:var(--ink-900);
  color:var(--fog);
  overflow-x:hidden;
}

.page-contact section[id]{
  scroll-margin-top:96px;
}

/* ---------- 首屏 ---------- */
.page-contact .cf-hero{
  position:relative;
  padding:clamp(18px,3vw,28px) 0 clamp(30px,5vw,52px);
}

.page-contact .cf-hero::before{
  content:"";
  position:absolute;
  top:18%;
  right:-14%;
  width:52%;
  height:340px;
  background:linear-gradient(115deg,rgba(0,229,255,.12),rgba(0,229,255,0) 64%);
  transform:skewY(-6deg);
  pointer-events:none;
  z-index:0;
}

.page-contact .cf-hero .container{
  position:relative;
  z-index:1;
}

.page-contact .cf-hero__media{
  margin:clamp(14px,2.5vw,24px) 0 0;
  position:relative;
  clip-path:polygon(0 0,calc(100% - 22px) 0,100% 22px,100% 100%,0 100%);
  background:var(--ink-800);
}

.page-contact .cf-hero__media img{
  display:block;
  width:100%;
  height:auto;
  object-fit:cover;
}

.page-contact .cf-hero__top{
  display:grid;
  gap:18px;
  margin-top:clamp(22px,3.5vw,36px);
}

.page-contact .cf-hero__kicker{
  margin:0;
  font-size:11px;
  letter-spacing:.24em;
  color:var(--cyan);
}

.page-contact .cf-hero__title{
  margin:8px 0 0;
  font-size:clamp(34px,7vw,66px);
  line-height:1.04;
  letter-spacing:.02em;
  color:var(--fog);
}

.page-contact .cf-hero__sub{
  margin:12px 0 0;
  font-size:clamp(15px,2.2vw,18px);
  color:var(--cyan-soft);
}

.page-contact .cf-hero__lede{
  margin:0;
  max-width:34em;
  font-size:clamp(15px,1.9vw,17px);
  line-height:1.85;
  color:var(--fog);
}

.page-contact .cf-hero__actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:22px;
}

/* ---------- 渠道信息带 ---------- */
.page-contact .cf-channels{
  padding:clamp(36px,6vw,72px) 0;
  border-top:1px solid var(--line-600);
}

.page-contact .section-head{
  margin-bottom:clamp(18px,3vw,28px);
}

.page-contact .cf-channels__grid{
  display:grid;
  gap:16px;
  grid-template-columns:minmax(0,1fr);
}

.page-contact .cf-ch{
  position:relative;
  display:flex;
  flex-direction:column;
  padding:22px 18px 20px;
  background:var(--ink-800);
  border:1px solid var(--line-600);
  border-radius:var(--r);
  transition:transform .28s var(--ease),border-color .28s var(--ease),background .28s var(--ease);
}

.page-contact .cf-ch::after{
  content:"";
  position:absolute;
  top:0;
  right:0;
  width:36px;
  height:3px;
  background:var(--cyan);
}

.page-contact .cf-ch:hover,
.page-contact .cf-ch:focus-within{
  transform:translateY(-4px);
  border-color:var(--cyan);
  background:var(--ink-700);
}

.page-contact .cf-ch__num{
  font-size:12px;
  letter-spacing:.16em;
  color:var(--cyan);
}

.page-contact .cf-ch__title{
  margin:8px 0 0;
  font-size:clamp(18px,2.4vw,21px);
  color:var(--fog);
}

.page-contact .cf-ch__val{
  margin:10px 0 0;
  font-size:clamp(13px,1.7vw,14px);
  color:var(--cyan);
  letter-spacing:.01em;
  overflow-wrap:anywhere;
}

.page-contact .cf-ch__use{
  margin:12px 0 0;
  font-size:14px;
  line-height:1.78;
  color:var(--mist);
}

.page-contact .cf-ch__prep{
  margin-top:14px;
  max-height:420px;
  opacity:1;
  overflow:hidden;
  transition:max-height .38s var(--ease),opacity .3s var(--ease),margin-top .38s var(--ease);
}

.page-contact .cf-ch__prep-title{
  margin:0 0 8px;
  font-size:11px;
  letter-spacing:.16em;
  color:var(--coral-soft);
}

.page-contact .cf-ch__list{
  margin:0;
  padding:10px 0 0;
  list-style:none;
  display:grid;
  gap:7px;
  border-top:1px dashed var(--line-600);
}

.page-contact .cf-ch__list li{
  position:relative;
  padding-left:16px;
  font-size:13px;
  line-height:1.7;
  color:var(--mist);
}

.page-contact .cf-ch__list li::before{
  content:"";
  position:absolute;
  left:0;
  top:10px;
  width:7px;
  height:1px;
  background:var(--cyan);
}

.page-contact .cf-channels__art{
  margin:0;
  position:relative;
  min-height:170px;
  background:var(--ink-800);
  border-radius:var(--r);
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,0 100%);
  overflow:hidden;
}

.page-contact .cf-channels__art img{
  display:block;
  width:100%;
  height:100%;
  min-height:170px;
  object-fit:cover;
}

/* ---------- 处理路径 ---------- */
.page-contact .cf-flow{
  padding:clamp(36px,6vw,72px) 0;
  background:var(--ink-800);
  border-top:1px solid var(--line-600);
  border-bottom:1px solid var(--line-600);
}

.page-contact .cf-flow__grid{
  display:grid;
  gap:26px;
  margin-top:clamp(20px,3vw,30px);
}

.page-contact .cf-flow__diagram svg{
  display:block;
  width:100%;
  height:auto;
}

.page-contact .cf-flow__prep-title{
  margin:0 0 14px;
  font-size:clamp(16px,2.2vw,19px);
  color:var(--fog);
}

.page-contact .cf-flow__list{
  margin:0;
  padding:0;
  list-style:none;
  display:grid;
  gap:12px;
}

.page-contact .cf-flow__list li{
  display:grid;
  grid-template-columns:30px minmax(0,1fr);
  gap:10px;
  padding-top:12px;
  border-top:1px solid var(--line-600);
  font-size:14px;
  line-height:1.75;
  color:var(--mist);
}

.page-contact .cf-flow__list li:first-child{
  padding-top:0;
  border-top:0;
}

.page-contact .cf-flow__list .mono{
  font-size:12px;
  color:var(--cyan);
  padding-top:3px;
}

/* ---------- 合作咨询 ---------- */
.page-contact .cf-coop{
  padding:clamp(36px,6vw,72px) 0;
}

.page-contact .cf-coop__grid{
  display:grid;
  gap:16px;
  margin-top:clamp(20px,3vw,30px);
}

.page-contact .cf-coop__card{
  padding:var(--cf-pad);
  background:var(--ink-800);
  border:1px solid var(--line-600);
  border-left:3px solid var(--cyan);
  border-radius:var(--r);
  transition:transform .28s var(--ease),border-left-color .28s var(--ease);
}

.page-contact .cf-coop__card:hover{
  transform:translateY(-3px);
  border-left-color:var(--coral);
}

.page-contact .cf-coop__tag{
  margin:0;
  font-size:11px;
  letter-spacing:.2em;
  color:var(--coral-soft);
}

.page-contact .cf-coop__title{
  margin:10px 0 0;
  font-size:clamp(18px,2.4vw,22px);
  color:var(--fog);
}

.page-contact .cf-coop__text{
  margin:12px 0 0;
  font-size:14px;
  line-height:1.82;
  color:var(--mist);
}

.page-contact .cf-coop__list{
  margin:16px 0 0;
  padding:0;
  list-style:none;
  display:grid;
  gap:9px;
}

.page-contact .cf-coop__list li{
  position:relative;
  padding-left:18px;
  font-size:13.5px;
  line-height:1.7;
  color:var(--fog);
}

.page-contact .cf-coop__list li::before{
  content:"";
  position:absolute;
  left:0;
  top:10px;
  width:9px;
  height:1px;
  background:var(--cyan);
}

.page-contact .cf-coop__note{
  margin:clamp(18px,3vw,26px) 0 0;
  padding:16px 18px;
  border:1px dashed var(--line-600);
  border-radius:var(--r);
  background:rgba(0,229,255,.04);
  font-size:14px;
  line-height:1.82;
  color:var(--mist);
}

/* ---------- 路径索引与联系信息 ---------- */
.page-contact .cf-info{
  padding:clamp(36px,6vw,76px) 0 clamp(48px,8vw,96px);
  border-top:1px solid var(--line-600);
}

.page-contact .cf-info__grid{
  display:grid;
  gap:26px;
}

.page-contact .cf-info__answers h2{
  margin:0 0 8px;
  font-size:clamp(20px,3vw,28px);
  color:var(--fog);
}

.page-contact .cf-info__answers > p{
  margin:0 0 18px;
  font-size:14px;
  line-height:1.8;
  color:var(--mist);
}

.page-contact .cf-info__paths{
  margin:0;
  padding:0;
  list-style:none;
}

.page-contact .cf-info__path{
  display:grid;
  grid-template-columns:34px minmax(0,1fr);
  gap:12px;
  padding:16px 0;
  border-top:1px solid var(--line-600);
}

.page-contact .cf-info__path:last-child{
  border-bottom:1px solid var(--line-600);
}

.page-contact .cf-info__path-num{
  font-size:12px;
  color:var(--cyan);
  padding-top:4px;
}

.page-contact .cf-info__path-link{
  display:inline-block;
  font-size:clamp(15px,2vw,17px);
  color:var(--fog);
  text-decoration:none;
  border-bottom:1px solid var(--line-600);
  padding-bottom:2px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}

.page-contact .cf-info__path-link:hover{
  color:var(--cyan);
  border-color:var(--cyan);
}

.page-contact .cf-info__path-link:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
}

.page-contact .cf-info__path p{
  margin:8px 0 0;
  font-size:13.5px;
  line-height:1.75;
  color:var(--mist);
}

.page-contact .cf-card{
  position:relative;
  padding:var(--cf-pad);
  background:var(--ink-800);
  border:1px solid var(--line-600);
  border-radius:var(--r);
  overflow:hidden;
}

.page-contact .cf-card::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:3px;
  background:linear-gradient(90deg,var(--cyan),var(--coral));
}

.page-contact .cf-card__title{
  margin:6px 0 18px;
  font-size:clamp(17px,2.2vw,20px);
  color:var(--fog);
}

.page-contact .cf-card__list{
  margin:0;
  padding:0;
}

.page-contact .cf-card__row{
  display:grid;
  gap:6px;
  padding:14px 0;
  border-top:1px solid var(--line-600);
}

.page-contact .cf-card__row:first-child{
  padding-top:0;
  border-top:0;
}

.page-contact .cf-card__row dt{
  font-size:11px;
  letter-spacing:.16em;
  color:var(--mist);
}

.page-contact .cf-card__row dd{
  margin:0;
  font-size:clamp(14px,1.9vw,16px);
  color:var(--fog);
  overflow-wrap:anywhere;
}

.page-contact .cf-card__strong{
  color:var(--cyan);
}

.page-contact .cf-card__note{
  margin:18px 0 0;
  padding-top:14px;
  border-top:1px dashed var(--line-600);
  font-size:13px;
  line-height:1.78;
  color:var(--mist);
}

/* ---------- 断点 ---------- */
@media (min-width:680px){
  .page-contact .cf-channels__grid{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
}

@media (min-width:760px){
  .page-contact .cf-coop__grid{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
}

@media (min-width:900px){
  .page-contact .cf-hero__top{
    grid-template-columns:minmax(0,1.08fr) minmax(0,1fr);
    gap:clamp(24px,5vw,72px);
    align-items:end;
  }

  .page-contact .cf-flow__grid{
    grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);
    gap:clamp(28px,4vw,56px);
    align-items:center;
  }

  .page-contact .cf-info__grid{
    grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);
    gap:clamp(28px,4vw,56px);
    align-items:start;
  }
}

@media (min-width:1040px){
  .page-contact .cf-channels__grid{
    grid-template-columns:repeat(3,minmax(0,1fr)) minmax(0,.82fr);
  }

  .page-contact .cf-channels__art{
    min-height:100%;
  }

  .page-contact .cf-ch__prep{
    margin-top:0;
    max-height:0;
    opacity:0;
  }

  .page-contact .cf-ch:hover .cf-ch__prep,
  .page-contact .cf-ch:focus-within .cf-ch__prep{
    margin-top:14px;
    max-height:420px;
    opacity:1;
  }
}

@media (prefers-reduced-motion:reduce){
  .page-contact .cf-ch,
  .page-contact .cf-coop__card,
  .page-contact .cf-ch__prep,
  .page-contact .cf-info__path-link{
    transition:none;
  }

  .page-contact .cf-ch:hover,
  .page-contact .cf-ch:focus-within,
  .page-contact .cf-coop__card:hover{
    transform:none;
  }
}