.page-contact{
  --c-pane-pad:26px;
  background:var(--void);
  color:var(--glass);
  overflow-x:clip;
}
.page-contact::after{
  content:"";
  display:block;
  height:4px;
  margin-top:var(--gap-xl);
  background:linear-gradient(90deg,var(--void) 0%,var(--cyan) 62%,var(--orange) 100%);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background:var(--void);
}
.page-contact .contact-hero-img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:.34;
}
.page-contact .contact-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(158deg,rgba(10,25,48,.92) 0%,rgba(18,41,74,.58) 46%,rgba(10,25,48,.96) 100%);
}
.page-contact .contact-hero > .wrap{
  position:relative;
  z-index:1;
}
.page-contact .contact-hero-inner{
  padding:64px 0 48px;
  max-width:800px;
}
.page-contact .contact-hero h1{
  margin:14px 0 18px;
  font-size:var(--t-h1);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.08;
  color:var(--glass);
}
.page-contact .contact-hero-lead{
  margin:0;
  max-width:64ch;
  font-size:var(--t-body);
  line-height:1.78;
  color:var(--haze);
}
.page-contact .contact-hero .label{
  color:var(--cyan);
}
.page-contact .breadcrumbs-list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  list-style:none;
  margin:0 0 18px;
  padding:0;
  font-size:var(--t-sm);
  font-family:var(--font-mono);
  letter-spacing:.04em;
}
.page-contact .breadcrumbs-list li{
  display:inline-flex;
  align-items:center;
}
.page-contact .breadcrumbs-list li + li::before{
  content:"/";
  margin:0 10px;
  color:var(--line-strong);
}
.page-contact .breadcrumbs-list a{
  color:var(--haze);
  text-decoration:none;
  transition:color var(--dur) var(--ease);
}
.page-contact .breadcrumbs-list a:hover{
  color:var(--cyan);
}
.page-contact .breadcrumbs-list [aria-current="page"]{
  color:var(--glass);
}

/* ---------- 分屏骨架 ---------- */
.page-contact .contact-body{
  margin-top:var(--gap-l);
}
.page-contact .contact-columns{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:var(--gap-m);
}
.page-contact .contact-col-l,
.page-contact .contact-col-r{
  display:grid;
  gap:var(--gap-m);
  align-content:start;
  min-width:0;
}
@media (min-width:1024px){
  .page-contact .contact-columns{
    grid-template-columns:minmax(0,5fr) minmax(0,7fr);
    gap:var(--gap-l);
    align-items:start;
  }
}

/* ---------- 章节公共 ---------- */
.page-contact .chapter-head{
  margin-bottom:18px;
}
.page-contact .chapter-index{
  display:block;
  margin-bottom:6px;
  font-family:var(--font-mono);
  font-size:20px;
  font-weight:700;
  letter-spacing:.1em;
  color:var(--cyan);
  font-variant-numeric:tabular-nums;
}
.page-contact .chapter-title{
  margin:0 0 10px;
  font-size:var(--t-h2);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.16;
  color:var(--glass);
}
.page-contact .chapter-lead{
  margin:0;
  font-size:var(--t-sm);
  line-height:1.76;
  color:var(--haze);
}
.page-contact .contact-pane{
  padding:var(--c-pane-pad);
  border-radius:var(--r-m);
}
.page-contact .contact-pane--glass{
  background:var(--glass-bg);
  border:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.page-contact .contact-pane--solid{
  background:var(--solid);
  border:1px solid rgba(10,25,48,.08);
}
.page-contact .contact-pane--solid .chapter-title{
  color:var(--void);
}
.page-contact .contact-pane--solid .chapter-lead{
  color:rgba(10,25,48,.68);
}
.page-contact .contact-pane--solid .chapter-index{
  color:var(--cyan-ink);
}

/* ---------- 01 渠道卡 ---------- */
.page-contact .channel-stack{
  display:grid;
  gap:var(--gap-s);
}
.page-contact .channel-card{
  padding:18px 20px;
  border:1px solid var(--line);
  border-radius:var(--r-m);
  background:linear-gradient(180deg,rgba(18,41,74,.9) 0%,rgba(10,25,48,.92) 100%);
  transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within{
  border-color:var(--cyan);
  transform:translateY(-2px);
  box-shadow:0 14px 32px rgba(0,0,0,.34);
}
.page-contact .channel-kind{
  display:block;
  font-family:var(--font-mono);
  font-size:var(--t-label);
  letter-spacing:.16em;
  color:var(--haze);
}
.page-contact .channel-value{
  display:block;
  margin:10px 0 8px;
  font-family:var(--font-mono);
  font-size:19px;
  font-weight:700;
  letter-spacing:.02em;
  font-variant-numeric:tabular-nums;
  color:var(--cyan);
  text-decoration:none;
  overflow-wrap:anywhere;
  transition:color var(--dur) var(--ease);
}
.page-contact a.channel-value:hover{
  color:var(--orange);
}
.page-contact .channel-value--addr{
  font-family:var(--font-sans);
  font-size:16px;
  font-weight:600;
  letter-spacing:0;
  line-height:1.66;
  color:var(--glass);
  user-select:all;
}
.page-contact .channel-use{
  margin:0;
  font-size:var(--t-sm);
  line-height:1.72;
  color:var(--haze);
}

/* ---------- 02 请求框 ---------- */
.page-contact .request-box{
  display:grid;
  gap:16px;
  padding:22px;
  border-radius:var(--r-m);
  background:var(--solid);
  color:var(--ink);
  border:1px solid rgba(10,25,48,.1);
}
.page-contact .field{
  display:block;
  min-width:0;
}
.page-contact .field label{
  display:block;
  margin-bottom:6px;
  font-size:var(--t-sm);
  font-weight:700;
  color:var(--void);
}
.page-contact .field input,
.page-contact .field select,
.page-contact .field textarea{
  width:100%;
  box-sizing:border-box;
  padding:10px 12px;
  font:inherit;
  font-size:16px;
  color:var(--void);
  background:#FFFFFF;
  border:1px solid rgba(10,25,48,.2);
  border-radius:var(--r-s);
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.page-contact .field textarea{
  resize:vertical;
  line-height:1.7;
}
.page-contact .field input:focus,
.page-contact .field select:focus,
.page-contact .field textarea:focus{
  outline:2px solid var(--cyan-deep);
  outline-offset:1px;
  border-color:var(--cyan-deep);
}
.page-contact .field-hint{
  margin:6px 0 0;
  font-size:13px;
  line-height:1.6;
  color:rgba(10,25,48,.62);
}
.page-contact .field-warn{
  display:none;
  margin:6px 0 0;
  font-size:13px;
  line-height:1.6;
  color:#C2324C;
}
.page-contact .field input:not(:placeholder-shown):invalid{
  border-color:var(--red);
  background:#FFF5F7;
}
.page-contact .field input:not(:placeholder-shown):invalid ~ .field-hint{
  display:none;
}
.page-contact .field input:not(:placeholder-shown):invalid ~ .field-warn{
  display:block;
}
.page-contact .request-note{
  margin:0;
  padding-top:4px;
  font-size:13px;
  line-height:1.7;
  color:rgba(10,25,48,.68);
  border-top:1px solid rgba(10,25,48,.1);
}
.page-contact .request-box .btn--block{
  box-sizing:border-box;
}

/* ---------- 03 服务时间 ---------- */
.page-contact .time-split{
  display:grid;
  gap:20px;
}
.page-contact .time-list{
  margin:0;
  display:grid;
  gap:12px;
}
.page-contact .time-row{
  padding-left:14px;
  border-left:2px solid var(--line-strong);
}
.page-contact .time-row dt{
  font-family:var(--font-mono);
  font-size:var(--t-label);
  letter-spacing:.14em;
  color:var(--cyan);
  margin-bottom:5px;
}
.page-contact .time-row dd{
  margin:0;
  font-size:var(--t-sm);
  line-height:1.72;
  color:var(--glass);
}
.page-contact .time-row .num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  color:var(--orange);
  font-weight:700;
}
.page-contact .media{
  margin:0;
  border:1px solid var(--line);
  border-radius:var(--r-m);
  overflow:hidden;
  background:rgba(10,25,48,.5);
}
.page-contact .media img{
  display:block;
  width:100%;
  max-width:100%;
  height:auto;
  object-fit:cover;
}
.page-contact .media-caption{
  padding:9px 12px;
  font-size:12px;
  font-family:var(--font-mono);
  letter-spacing:.04em;
  color:var(--haze);
  border-top:1px solid var(--line);
}

/* ---------- 04 处理流程 ---------- */
.page-contact .flow-list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:10px;
  counter-reset:none;
}
.page-contact .flow-step{
  border:1px solid var(--line);
  border-radius:var(--r-s);
  background:rgba(10,25,48,.34);
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.page-contact .flow-step:hover{
  border-color:var(--line-strong);
  background:rgba(10,25,48,.5);
}
.page-contact .flow-step summary{
  display:flex;
  align-items:center;
  gap:12px;
  padding:13px 16px;
  cursor:pointer;
  list-style:none;
  color:var(--glass);
}
.page-contact .flow-step summary::-webkit-details-marker{
  display:none;
}
.page-contact .flow-step summary::after{
  content:"+";
  margin-left:auto;
  font-family:var(--font-mono);
  font-size:16px;
  color:var(--cyan);
}
.page-contact .flow-step[open] summary::after{
  content:"–";
}
.page-contact .flow-num{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  color:var(--orange);
  font-variant-numeric:tabular-nums;
}
.page-contact .flow-name{
  font-size:16px;
  font-weight:700;
}
.page-contact .flow-brief{
  font-size:12px;
  color:var(--haze);
}
.page-contact .flow-step p{
  margin:0;
  padding:0 16px 15px;
  font-size:var(--t-sm);
  line-height:1.74;
  color:var(--haze);
  border-left:2px solid transparent;
}
@media (max-width:639px){
  .page-contact .flow-brief{
    display:none;
  }
}

/* ---------- 05 合作 ---------- */
.page-contact .coop-grid{
  display:grid;
  gap:14px;
  margin-bottom:20px;
}
@media (min-width:560px){
  .page-contact .coop-grid{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
}
.page-contact .coop-card{
  padding:16px 18px;
  border-radius:var(--r-s);
  background:#FFFFFF;
  border:1px solid rgba(10,25,48,.1);
  transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.page-contact .coop-card:hover{
  border-color:var(--cyan-deep);
  transform:translateY(-2px);
}
.page-contact .coop-card h3{
  margin:0 0 7px;
  font-size:17px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--void);
}
.page-contact .coop-card p{
  margin:0;
  font-size:var(--t-sm);
  line-height:1.72;
  color:rgba(10,25,48,.7);
}
.page-contact .coop-cta{
  padding-top:18px;
  border-top:1px solid rgba(10,25,48,.12);
}
.page-contact .coop-cta p{
  margin:0 0 14px;
  font-size:var(--t-sm);
  line-height:1.74;
  color:rgba(10,25,48,.74);
}

/* ---------- 06 通信与到访 ---------- */
.page-contact .contact-visit{
  position:relative;
  padding:var(--c-pane-pad);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  background-color:rgba(18,41,74,.44);
  background-image:
    linear-gradient(rgba(47,217,208,.09) 1px,transparent 1px),
    linear-gradient(90deg,rgba(47,217,208,.09) 1px,transparent 1px);
  background-size:32px 32px,32px 32px;
}
.page-contact .visit-grid{
  display:grid;
  gap:22px;
}
@media (min-width:720px){
  .page-contact .visit-grid{
    grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
    gap:var(--gap-m);
  }
}
.page-contact .visit-addr .label{
  color:var(--cyan);
}
.page-contact .visit-address{
  margin:8px 0 10px;
  font-family:var(--font-mono);
  font-size:16px;
  line-height:1.72;
  letter-spacing:.02em;
  color:var(--glass);
  user-select:all;
}
.page-contact .visit-note{
  margin:0;
  font-size:13px;
  line-height:1.7;
  color:var(--haze);
}
.page-contact .visit-meta{
  margin:0;
  display:grid;
  gap:14px;
  padding:16px 18px;
  border-radius:var(--r-s);
  background:rgba(10,25,48,.62);
  border:1px solid var(--line);
}
.page-contact .visit-meta dt{
  font-family:var(--font-mono);
  font-size:var(--t-label);
  letter-spacing:.14em;
  color:var(--cyan);
  margin-bottom:5px;
}
.page-contact .visit-meta dd{
  margin:0;
  font-size:var(--t-sm);
  line-height:1.7;
  color:var(--glass);
}
.page-contact .visit-icp{
  font-family:var(--font-mono);
  letter-spacing:.08em;
  font-variant-numeric:tabular-nums;
  color:var(--orange) !important;
}

/* ---------- 07 尾部引导 ---------- */
.page-contact .contact-tail{
  margin-top:var(--gap-l);
}
.page-contact .tail-split{
  display:grid;
  gap:var(--gap-m);
  padding:28px;
  border-radius:var(--r-m);
  border:1px solid var(--line-strong);
  background:linear-gradient(122deg,rgba(47,217,208,.11) 0%,rgba(10,25,48,.9) 52%,rgba(255,122,43,.12) 100%);
}
@media (min-width:900px){
  .page-contact .tail-split{
    grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);
    gap:var(--gap-l);
    align-items:center;
  }
}
.page-contact .tail-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:20px;
}
.page-contact .tail-links{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:9px;
}
.page-contact .tail-links a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:11px 14px;
  border:1px solid var(--line);
  border-radius:var(--r-s);
  font-size:var(--t-sm);
  line-height:1.6;
  color:var(--glass);
  text-decoration:none;
  background:rgba(10,25,48,.4);
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.page-contact .tail-links a::after{
  content:"→";
  font-family:var(--font-mono);
  color:var(--orange);
  flex-shrink:0;
}
.page-contact .tail-links a:hover,
.page-contact .tail-links a:focus-visible{
  border-color:var(--cyan);
  color:var(--cyan);
  transform:translateX(4px);
}

/* ---------- 焦点可见性 ---------- */
.page-contact a:focus-visible,
.page-contact summary:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:2px;
  border-radius:var(--r-s);
}

/* ---------- 平板与桌面微调 ---------- */
@media (min-width:768px){
  .page-contact .contact-hero-inner{
    padding:88px 0 60px;
  }
  .page-contact{
    --c-pane-pad:30px;
  }
}
@media (max-width:479px){
  .page-contact .contact-hero-inner{
    padding:48px 0 40px;
  }
  .page-contact .chapter-index{
    font-size:18px;
  }
  .page-contact .tail-split,
  .page-contact .contact-pane,
  .page-contact .contact-visit{
    padding:20px;
  }
  .page-contact .request-box{
    padding:18px;
  }
}

/* ---------- 动效退化 ---------- */
@media (prefers-reduced-motion:reduce){
  .page-contact *{
    transition-duration:1ms !important;
    animation-duration:1ms !important;
  }
  .page-contact .channel-card:hover,
  .page-contact .coop-card:hover,
  .page-contact .tail-links a:hover{
    transform:none;
  }
}