.page-contact{
  --co-pad:clamp(16px,3.6vw,40px);
  --co-gap:clamp(22px,3.4vw,46px);
  --co-line:rgba(30,90,76,.9);
  --co-lane:rgba(12,42,33,1);
  display:block;
}

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

/* ---------- 首屏框景 ---------- */
.page-contact .co-hero{
  padding-top:14px;
}

.page-contact .co-hero__frame{
  position:relative;
  border:1px solid var(--edge);
  background:
    linear-gradient(158deg, rgba(12,42,33,.96) 0%, rgba(6,28,22,.97) 56%, rgba(2,13,10,.98) 100%);
  padding:var(--co-pad);
  overflow:hidden;
}

.page-contact .co-hero__frame::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(to right, rgba(22,69,58,.42) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(22,69,58,.42) 1px, transparent 1px);
  background-size:clamp(44px,7vw,96px) clamp(44px,7vw,96px);
  -webkit-mask-image:linear-gradient(180deg,#000 0%, rgba(0,0,0,.2) 100%);
  mask-image:linear-gradient(180deg,#000 0%, rgba(0,0,0,.2) 100%);
  pointer-events:none;
}

.page-contact .co-hero__tick{
  position:absolute;
  width:16px;
  height:16px;
  border:1px solid var(--cyan);
  opacity:.7;
  z-index:2;
}
.page-contact .co-hero__tick--a{top:7px;left:7px;border-right:0;border-bottom:0}
.page-contact .co-hero__tick--b{top:7px;right:7px;border-left:0;border-bottom:0}
.page-contact .co-hero__tick--c{bottom:7px;left:7px;border-right:0;border-top:0}
.page-contact .co-hero__tick--d{bottom:7px;right:7px;border-left:0;border-top:0}

.page-contact .co-hero__grid{
  position:relative;
  z-index:1;
  display:grid;
  gap:clamp(18px,2.6vw,34px);
}

.page-contact .co-hero__kicker{
  display:flex;
  align-items:center;
  gap:10px;
  margin:0 0 14px;
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.26em;
  color:var(--muted);
}

.page-contact .co-hero__dot{
  width:8px;
  height:8px;
  flex:none;
  background:var(--orange);
  box-shadow:0 0 0 4px rgba(255,122,61,.14);
}

.page-contact .co-hero h1{
  margin:0 0 16px;
  font-size:clamp(28px,6.2vw,60px);
  line-height:1.07;
  letter-spacing:-.015em;
  font-weight:900;
  max-width:16ch;
}

.page-contact .co-hero__lead{
  margin:0 0 12px;
  max-width:46ch;
  font-size:15px;
  line-height:1.78;
  color:var(--text);
}

.page-contact .co-hero__lead--sub{
  color:var(--muted);
  font-size:14px;
  line-height:1.8;
  padding-left:14px;
  border-left:2px solid var(--signal,var(--cyan));
}

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

.page-contact .co-hero__stats{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  border:1px solid var(--edge);
  background:rgba(2,13,10,.55);
}

.page-contact .co-hero__stats .kpi{
  padding:14px 12px 16px;
  border-right:1px solid var(--edge);
  min-width:0;
}
.page-contact .co-hero__stats .kpi:last-child{border-right:0}

.page-contact .co-hero__stats .kpi__num{
  display:block;
  font-family:var(--mono);
  font-size:clamp(24px,5.6vw,40px);
  line-height:1;
  color:var(--cyan);
  letter-spacing:-.02em;
}

.page-contact .co-hero__stats .kpi__label{
  display:block;
  margin-top:9px;
  font-size:11.5px;
  line-height:1.5;
  letter-spacing:.06em;
  color:var(--muted);
}

.page-contact .co-hero__media{
  position:relative;
  z-index:1;
  margin:clamp(20px,3vw,34px) 0 0;
  border:1px solid var(--edge);
}
.page-contact .co-hero__media img{
  aspect-ratio:16/9;
  object-fit:cover;
  width:100%;
}

/* ---------- 章节标题条 ---------- */
.page-contact .section-head{
  display:flex;
  align-items:baseline;
  gap:14px;
  padding-bottom:12px;
  margin-bottom:clamp(18px,2.6vw,30px);
  border-bottom:1px solid var(--edge);
}
.page-contact .section-head__no{
  flex:none;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.2em;
  color:var(--orange);
}
.page-contact .section-head__title{
  margin:0;
  font-size:clamp(19px,3.2vw,30px);
  line-height:1.25;
  letter-spacing:-.01em;
  font-weight:800;
}

/* ---------- 合作方向 ---------- */
.page-contact .co-lanes{
  margin-top:clamp(38px,6vw,76px);
}

.page-contact .co-lanes__intro{
  margin:0 0 clamp(18px,2.6vw,28px);
  max-width:56ch;
  font-size:15px;
  line-height:1.78;
  color:var(--muted);
}

.page-contact .co-lanes__grid{
  display:grid;
  gap:1px;
  border:1px solid var(--edge);
  background:var(--edge);
}

.page-contact .co-lane{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:clamp(18px,2.6vw,28px);
  background:var(--ink-2);
  transition:background .3s var(--ease), box-shadow .3s var(--ease);
}
.page-contact .co-lane:hover{
  background:#0F3328;
  box-shadow:inset 0 2px 0 var(--cyan);
}

.page-contact .co-lane__no{
  display:block;
  padding-bottom:10px;
  border-bottom:1px dashed rgba(255,122,61,.34);
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.2em;
  color:var(--orange);
}

.page-contact .co-lane__title{
  margin:0;
  font-size:clamp(18px,2.4vw,22px);
  line-height:1.3;
  letter-spacing:-.005em;
}

.page-contact .co-lane__desc{
  margin:0;
  font-size:14.5px;
  line-height:1.78;
  color:var(--text);
}

.page-contact .co-lane__more{
  margin-top:auto;
  padding-top:12px;
  border-top:1px solid var(--edge);
}

.page-contact .co-lane__more summary{
  display:flex;
  align-items:center;
  gap:8px;
  cursor:pointer;
  list-style:none;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.12em;
  color:var(--cyan);
}
.page-contact .co-lane__more summary::-webkit-details-marker{display:none}
.page-contact .co-lane__more summary::before{
  content:"+";
  flex:none;
  width:14px;
  font-family:var(--mono);
}
.page-contact .co-lane__more[open] summary::before{content:"–"}

.page-contact .co-lane__more p{
  margin:10px 0 0;
  font-size:13.5px;
  line-height:1.72;
  color:var(--muted);
}
.page-contact .co-lane__more a{
  color:var(--cyan-soft);
  text-decoration:none;
  border-bottom:1px solid rgba(59,240,200,.4);
}
.page-contact .co-lane__more a:hover{color:var(--cyan)}

/* ---------- 对接流程 ---------- */
.page-contact .co-flow{
  margin-top:clamp(38px,6vw,76px);
}

.page-contact .co-flow__layout{
  display:grid;
  gap:clamp(22px,3vw,40px);
}

.page-contact .co-flow__steps{
  list-style:none;
  margin:0;
  padding:0 0 0 18px;
  border-left:1px solid var(--edge);
}

.page-contact .co-step{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:6px;
  padding:0 0 clamp(20px,2.6vw,30px);
}
.page-contact .co-step:last-child{padding-bottom:0}

.page-contact .co-step::before{
  content:"";
  position:absolute;
  left:-23px;
  top:6px;
  width:9px;
  height:9px;
  background:var(--ink);
  border:1px solid var(--cyan);
  transition:background .25s var(--ease), box-shadow .25s var(--ease);
}
.page-contact .co-step:hover::before{
  background:var(--cyan);
  box-shadow:0 0 0 4px rgba(59,240,200,.16);
}

.page-contact .co-step__no{
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.18em;
  color:var(--muted);
}

.page-contact .co-step__title{
  margin:4px 0 8px;
  font-size:clamp(16px,2.1vw,19px);
  line-height:1.35;
  transition:color .25s var(--ease);
}
.page-contact .co-step:hover .co-step__title{color:var(--cyan)}

.page-contact .co-step__body p{
  margin:0;
  max-width:58ch;
  font-size:14.5px;
  line-height:1.78;
  color:var(--text);
}

.page-contact .co-flow__fig{
  margin:0;
  border:1px solid var(--edge);
  background:var(--ink-2);
}
.page-contact .co-flow__fig img{
  aspect-ratio:5/3;
  object-fit:cover;
  width:100%;
}

/* ---------- 合作方权益 ---------- */
.page-contact .co-perks{
  margin-top:clamp(38px,6vw,76px);
}

.page-contact .co-perks__list{
  list-style:none;
  margin:0;
  padding:0;
  border-top:1px solid var(--edge);
}

.page-contact .co-perk{
  display:grid;
  gap:8px;
  padding:clamp(16px,2.2vw,22px) 6px;
  border-bottom:1px solid var(--edge);
  transition:background .25s var(--ease);
}
.page-contact .co-perk:hover{background:rgba(12,42,33,.7)}

.page-contact .co-perk__k{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.16em;
  color:var(--cyan);
}

.page-contact .co-perk p{
  margin:0;
  max-width:72ch;
  font-size:14.5px;
  line-height:1.78;
  color:var(--text);
}

/* ---------- 联系渠道 ---------- */
.page-contact .co-reach{
  margin-top:clamp(38px,6vw,76px);
}

.page-contact .co-reach__lead{
  margin:0 0 clamp(16px,2.2vw,24px);
  max-width:58ch;
  font-size:15px;
  line-height:1.78;
  color:var(--text);
}

.page-contact .co-reach__wrap{
  border:1px solid var(--edge);
  background:var(--ink-2);
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
}

.page-contact .co-table{
  width:100%;
  min-width:600px;
  border-collapse:collapse;
  font-size:14px;
}

.page-contact .co-table__cap{
  caption-side:top;
  text-align:left;
  padding:14px clamp(14px,2vw,22px) 0;
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.16em;
  color:var(--orange);
}

.page-contact .co-table th,
.page-contact .co-table td{
  text-align:left;
  vertical-align:top;
  padding:14px clamp(14px,2vw,22px);
  border-bottom:1px solid var(--edge);
  line-height:1.7;
}

.page-contact .co-table thead th{
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.14em;
  color:var(--cyan);
  background:rgba(22,69,58,.32);
  font-weight:500;
}

.page-contact .co-table tbody th{
  font-size:13.5px;
  color:var(--text);
  font-weight:600;
  white-space:nowrap;
}

.page-contact .co-table tbody td{
  color:var(--muted);
}

.page-contact .co-table__mono{
  font-family:var(--mono);
  font-size:13.5px;
  letter-spacing:.02em;
  color:var(--cyan-soft);
  word-break:break-word;
}

.page-contact .co-table tbody tr:last-child th,
.page-contact .co-table tbody tr:last-child td{
  border-bottom:0;
}

/* ---------- 收尾 ---------- */
.page-contact .co-tail{
  margin-top:clamp(38px,6vw,76px);
  margin-bottom:clamp(34px,5vw,72px);
}

.page-contact .co-tail__box{
  position:relative;
  border:1px solid var(--edge);
  border-left:3px solid var(--orange);
  background:
    linear-gradient(120deg, rgba(12,42,33,.95), rgba(6,28,22,.98));
  padding:clamp(20px,3vw,36px);
}

.page-contact .co-tail__title{
  margin:0 0 12px;
  font-size:clamp(18px,2.6vw,25px);
  line-height:1.3;
  letter-spacing:-.005em;
}

.page-contact .co-tail__text{
  margin:0;
  max-width:74ch;
  font-size:14.5px;
  line-height:1.85;
  color:var(--text);
}

.page-contact .co-tail__text a{
  color:var(--cyan);
  text-decoration:none;
  border-bottom:1px solid rgba(59,240,200,.42);
}
.page-contact .co-tail__text a:hover{color:var(--cyan-soft)}

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

/* ---------- 平板与桌面 ---------- */
@media (min-width:760px){
  .page-contact .co-perk{
    grid-template-columns:188px minmax(0,1fr);
    gap:26px;
    align-items:baseline;
  }
}

@media (min-width:900px){
  .page-contact .co-hero__grid{
    grid-template-columns:minmax(0,1.45fr) minmax(260px,.85fr);
    align-items:start;
    gap:clamp(26px,3.4vw,54px);
  }

  .page-contact .co-hero__stats{
    margin-top:6px;
  }

  .page-contact .co-lanes__grid{
    grid-template-columns:repeat(3,minmax(0,1fr));
  }

  .page-contact .co-flow__layout{
    grid-template-columns:minmax(0,1.1fr) minmax(280px,.9fr);
    align-items:start;
  }

  .page-contact .co-flow__steps{
    padding-left:24px;
  }

  .page-contact .co-step::before{
    left:-29px;
  }
}

@media (min-width:1180px){
  .page-contact .co-hero h1{
    max-width:18ch;
  }

  .page-contact .co-lane__title{
    font-size:23px;
  }
}

@media (prefers-reduced-motion:reduce){
  .page-contact .co-lane,
  .page-contact .co-step::before,
  .page-contact .co-step__title,
  .page-contact .co-perk{
    transition:none;
  }
}