.page-contact{
  --c-cell:#0A1320;
  --c-hair:rgba(232,238,245,.12);
  background:var(--ink);
  color:var(--text);
  overflow-x:hidden;
}

.page-contact .breadcrumb{
  padding-block:18px 4px;
}

/* ---------- 首屏：通信面板 ---------- */
.page-contact .contact-hero{
  border-top:0;
  padding-top:clamp(8px,1.6vw,18px);
}
.page-contact .contact-hero__grid{
  display:grid;
  gap:0;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--panel);
  overflow:hidden;
}
@media (min-width:960px){
  .page-contact .contact-hero__grid{
    grid-template-columns:55fr 45fr;
  }
}

.page-contact .contact-hero__panel{
  position:relative;
  overflow:hidden;
  padding:clamp(24px,3.6vw,52px);
  display:flex;
  flex-direction:column;
  gap:clamp(14px,1.9vw,22px);
  background:linear-gradient(158deg,var(--teal-deep) 0%,#04191a 58%,var(--ink) 100%);
}
.page-contact .contact-hero__bg{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:.16;
  mix-blend-mode:screen;
  pointer-events:none;
}
.page-contact .contact-hero__panel > *:not(.contact-hero__bg){
  position:relative;
  z-index:1;
}
.page-contact .contact-hero .display-xl{
  margin:0;
  font-size:clamp(38px,5.4vw,72px);
  line-height:.98;
  letter-spacing:-.02em;
}
.page-contact .contact-hero .display-xl em{
  font-style:normal;
  color:var(--orange);
}
.page-contact .contact-hero .lede{
  margin:0;
  max-width:46ch;
  font-size:clamp(15px,1.5vw,17px);
  line-height:1.8;
  color:var(--muted);
}

.page-contact .contact-line{
  display:grid;
  gap:6px;
  padding-top:clamp(12px,1.6vw,18px);
  border-top:1px solid var(--c-hair);
}
.page-contact .contact-line__label{
  display:flex;
  align-items:center;
  gap:8px;
  margin:0;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--muted);
}
.page-contact .contact-line__value{
  font-family:var(--font-mono);
  font-weight:600;
  line-height:1.12;
  letter-spacing:-.01em;
  color:var(--text);
  text-decoration:none;
  overflow-wrap:anywhere;
  transition:color .18s var(--ease);
}
.page-contact .contact-line--mail .contact-line__value{
  font-size:clamp(17px,2.1vw,30px);
}
.page-contact .contact-line--phone .contact-line__value{
  font-size:clamp(28px,3.6vw,52px);
  color:var(--orange);
}
.page-contact .contact-line__value:hover{
  color:var(--orange-soft);
}
.page-contact .contact-line .copy-btn{
  justify-self:start;
  margin-top:4px;
}
.page-contact .contact-hint{
  margin:0;
  padding-left:12px;
  border-left:2px solid var(--amber);
  font-size:13px;
  line-height:1.7;
  color:var(--muted);
}

/* ---------- 首屏右侧：准备清单 ---------- */
.page-contact .contact-hero__side{
  padding:clamp(22px,3vw,44px);
  background:var(--panel);
  border-top:1px solid var(--line);
  display:flex;
  flex-direction:column;
  gap:clamp(14px,2vw,22px);
}
@media (min-width:960px){
  .page-contact .contact-hero__side{
    border-top:0;
    border-left:1px solid var(--line);
  }
}
.page-contact .contact-side__head h2{
  margin:0 0 8px;
}
.page-contact .contact-side__note{
  margin:0;
  font-size:14px;
  line-height:1.7;
  color:var(--muted);
}
.page-contact .filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
}
.page-contact .prep-list{
  list-style:none;
  margin:10px 0 0;
  padding:0;
}
.page-contact .prep-item{
  display:grid;
  grid-template-columns:34px minmax(0,1fr);
  gap:10px;
  padding:12px 0;
  border-top:1px solid var(--c-hair);
  transition:opacity .18s var(--ease),transform .18s var(--ease);
}
.page-contact .prep-item.is-hidden{
  display:none;
}
.page-contact .prep-item__no{
  padding-top:2px;
  font-size:11px;
  letter-spacing:.1em;
  color:var(--orange);
}
.page-contact .prep-item__title{
  margin:0 0 3px;
  font-size:15px;
  font-weight:600;
  color:var(--text);
}
.page-contact .prep-item__body p{
  margin:0;
  font-size:13.5px;
  line-height:1.65;
  color:var(--muted);
}

/* ---------- 服务时间 ---------- */
.page-contact .contact-hours{
  margin-top:clamp(32px,5vw,64px);
  border-top:0;
}
.page-contact .contact-hours__grid{
  display:grid;
  gap:clamp(24px,4vw,52px);
  align-items:start;
}
@media (min-width:900px){
  .page-contact .contact-hours__grid{
    grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  }
}
.page-contact .contact-hours__body .lede{
  margin:12px 0 24px;
  max-width:56ch;
  color:var(--muted);
}
.page-contact .hours-list{
  list-style:none;
  margin:0;
  padding:0;
}
.page-contact .hours-item{
  padding:16px 0;
  border-top:1px solid var(--line);
}
.page-contact .hours-item:last-child{
  border-bottom:1px solid var(--line);
}
.page-contact .hours-item__k{
  margin:0 0 6px;
  font-size:15px;
  font-weight:600;
  color:var(--text);
}
.page-contact .hours-item p{
  margin:0;
  max-width:60ch;
  font-size:14px;
  line-height:1.75;
  color:var(--muted);
}
.page-contact .contact-hours__figure{
  position:relative;
  margin:0;
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--wine);
}
.page-contact .contact-hours__figure img{
  display:block;
  width:100%;
  height:auto;
  aspect-ratio:5/4;
  object-fit:cover;
  opacity:.92;
}
.page-contact .contact-hours__cap{
  display:block;
  padding:10px 14px;
  border-top:1px solid var(--line);
  background:rgba(7,11,20,.6);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.08em;
  color:var(--muted);
}

/* ---------- 合作与内容沟通 ---------- */
.page-contact .contact-collab{
  margin-top:clamp(32px,5vw,64px);
}
.page-contact .contact-collab__grid{
  display:grid;
  gap:clamp(22px,4vw,48px);
}
@media (min-width:960px){
  .page-contact .contact-collab__grid{
    grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);
    align-items:start;
  }
}
.page-contact .contact-collab__intro .lede{
  margin:12px 0 0;
  max-width:44ch;
  color:var(--muted);
}
.page-contact .collab-list{
  list-style:none;
  margin:0;
  padding:0;
}
.page-contact .collab-item{
  display:grid;
  grid-template-columns:44px minmax(0,1fr);
  gap:4px 14px;
  padding:18px 0;
  border-top:1px solid var(--line);
}
.page-contact .collab-item:last-child{
  border-bottom:1px solid var(--line);
}
.page-contact .collab-item__no{
  grid-row:span 2;
  padding-top:2px;
  font-size:13px;
  letter-spacing:.1em;
  color:var(--lg-b);
}
.page-contact .collab-item h3{
  margin:0 0 5px;
  font-size:16px;
  font-weight:600;
  color:var(--text);
}
.page-contact .collab-item p{
  margin:0;
  max-width:62ch;
  font-size:14px;
  line-height:1.75;
  color:var(--muted);
}

/* ---------- 站点信息细线网格 ---------- */
.page-contact .contact-info{
  margin-top:clamp(32px,5vw,64px);
}
.page-contact .contact-facts{
  display:grid;
  margin-top:clamp(18px,2.4vw,28px);
  border-top:1px solid var(--line);
  border-left:1px solid var(--line);
}
@media (min-width:720px){
  .page-contact .contact-facts{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
}
@media (min-width:1080px){
  .page-contact .contact-facts{
    grid-template-columns:repeat(4,minmax(0,1fr));
  }
}
.page-contact .contact-fact{
  display:flex;
  flex-direction:column;
  gap:8px;
  padding:clamp(16px,2.2vw,26px);
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:var(--c-cell);
}
.page-contact .contact-fact__k{
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--lg-a);
}
.page-contact .contact-fact__v{
  margin:0;
  font-size:15px;
  line-height:1.65;
  color:var(--text);
  overflow-wrap:anywhere;
}
.page-contact .contact-fact__v--sub{
  font-size:13px;
  color:var(--muted);
}
.page-contact .contact-fact .copy-btn{
  align-self:flex-start;
  margin-top:2px;
}
.page-contact .contact-info__note{
  margin:14px 0 0;
  font-size:13.5px;
  line-height:1.7;
  color:var(--muted);
}
.page-contact .contact-info__note a{
  color:var(--orange-soft);
  text-decoration:underline;
  text-underline-offset:3px;
}
.page-contact .contact-info__note a:hover{
  color:var(--orange);
}

/* ---------- 常见问题折叠 ---------- */
.page-contact .contact-qa{
  margin-top:clamp(32px,5vw,64px);
  padding-bottom:clamp(18px,3vw,44px);
}
.page-contact .contact-qa__grid{
  display:grid;
  gap:clamp(22px,3.6vw,48px);
  align-items:start;
}
@media (min-width:960px){
  .page-contact .contact-qa__grid{
    grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);
  }
}
.page-contact .contact-qa__intro .lede{
  margin:12px 0 20px;
  max-width:42ch;
  color:var(--muted);
}
.page-contact .qa{
  border-top:1px solid var(--line);
}
.page-contact .qa:last-child{
  border-bottom:1px solid var(--line);
}
.page-contact .qa__q{
  display:flex;
  align-items:baseline;
  gap:12px;
  padding:15px 0;
  cursor:pointer;
  list-style:none;
  font-size:clamp(15px,1.5vw,17px);
  font-weight:600;
  color:var(--text);
  transition:color .18s var(--ease);
}
.page-contact .qa__q::-webkit-details-marker{
  display:none;
}
.page-contact .qa__q:hover{
  color:var(--orange-soft);
}
.page-contact .qa__q .mono{
  font-size:12px;
  letter-spacing:.08em;
  color:var(--orange);
}
.page-contact .qa__q::after{
  content:"+";
  margin-left:auto;
  font-family:var(--font-mono);
  font-size:18px;
  line-height:1;
  color:var(--orange);
}
.page-contact .qa[open] .qa__q::after{
  content:"–";
}
.page-contact .qa__a{
  padding:0 0 16px 34px;
}
.page-contact .qa__a p{
  margin:0 0 8px;
  max-width:64ch;
  font-size:14px;
  line-height:1.75;
  color:var(--muted);
}
.page-contact .qa__a p:last-child{
  margin-bottom:0;
}
.page-contact .qa__a a{
  color:var(--orange-soft);
  text-decoration:underline;
  text-underline-offset:3px;
}
.page-contact .qa__a a:hover{
  color:var(--orange);
}

@media (prefers-reduced-motion:reduce){
  .page-contact .contact-line__value,
  .page-contact .prep-item,
  .page-contact .qa__q{
    transition:none;
  }
}
</main>