.page-contact{
  --pc-line:rgba(230,241,245,.16);
  --pc-line-soft:rgba(230,241,245,.08);
  --pc-gap:clamp(18px,3vw,32px);
  background:
    radial-gradient(120% 55% at 90% 0%, rgba(53,242,208,.10), transparent 62%),
    linear-gradient(180deg, var(--ink) 0%, var(--sea) 30%, var(--sea) 100%);
  color:var(--mist);
  font-family:var(--font-sans);
  overflow-x:clip;
}
.page-contact .mono{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.01em;
}
.page-contact .contact-shell{
  width:100%;
  max-width:var(--content-max);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.page-contact > .breadcrumb{
  max-width:var(--content-max);
  margin-inline:auto;
  padding:22px var(--gutter) 0;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero{
  position:relative;
  padding:clamp(22px,4vw,44px) 0 clamp(34px,6vw,72px);
  border-bottom:1px solid var(--pc-line-soft);
}
.page-contact .contact-hero__inner{
  display:grid;
  gap:clamp(26px,4vw,44px);
}
.page-contact .eyebrow{
  margin:0;
  font-size:12px;
  letter-spacing:.14em;
  color:var(--cyan);
  text-transform:uppercase;
}
.page-contact .eyebrow--cyan{color:var(--cyan);}
.page-contact .contact-hero h1{
  margin:14px 0 0;
  font-size:clamp(34px,8.4vw,76px);
  line-height:.98;
  letter-spacing:-.02em;
  font-weight:800;
  color:var(--mist);
}
.page-contact .contact-hero h1 em{
  font-style:normal;
  color:var(--cyan);
}
.page-contact .contact-hero__lede{
  margin:clamp(16px,2.4vw,24px) 0 0;
  max-width:44ch;
  font-size:clamp(15px,1.6vw,17px);
  line-height:1.8;
  color:rgba(230,241,245,.82);
}
.page-contact .contact-hero__jump{
  list-style:none;
  margin:clamp(20px,3vw,30px) 0 0;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.page-contact .contact-hero__jump a{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 14px;
  border:1px solid var(--pc-line);
  background:rgba(10,34,56,.66);
  color:var(--mist);
  text-decoration:none;
  font-size:13px;
  letter-spacing:.05em;
  transition:border-color 180ms var(--ease),color 180ms var(--ease),background 180ms var(--ease);
}
.page-contact .contact-hero__jump a:hover,
.page-contact .contact-hero__jump a:focus-visible{
  border-color:var(--hair-cyan);
  background:rgba(53,242,208,.08);
  color:var(--cyan);
  outline:none;
}
.page-contact .contact-hero__jump .mono{
  font-size:11px;
  color:var(--orange);
}
.page-contact .contact-hero__visual{
  position:relative;
  margin:0;
  padding:10px;
  border:1px solid var(--hair-cyan);
  background:var(--ink);
  box-shadow:var(--shadow-soft);
}
.page-contact .contact-hero__visual::before{
  content:"";
  position:absolute;
  inset:-1px;
  pointer-events:none;
  background:
    linear-gradient(var(--cyan),var(--cyan)) left top/16px 1px no-repeat,
    linear-gradient(var(--cyan),var(--cyan)) left top/1px 16px no-repeat,
    linear-gradient(var(--cyan),var(--cyan)) right bottom/16px 1px no-repeat,
    linear-gradient(var(--cyan),var(--cyan)) right bottom/1px 16px no-repeat;
  opacity:.9;
}
.page-contact .contact-hero__visual img{
  display:block;
  width:100%;
  height:auto;
  aspect-ratio:16/9;
  object-fit:cover;
}
.page-contact .contact-hero__visual figcaption{
  position:absolute;
  left:18px;
  bottom:18px;
  padding:5px 10px;
  background:rgba(4,18,29,.82);
  border:1px solid var(--pc-line);
  font-size:11px;
  letter-spacing:.12em;
  color:var(--cyan);
}

/* ---------- 通用章节 ---------- */
.page-contact .contact-section{
  padding:clamp(42px,7vw,88px) 0;
  border-bottom:1px solid var(--pc-line-soft);
}
.page-contact .contact-head{
  max-width:62ch;
  margin-bottom:clamp(20px,3vw,34px);
}
.page-contact .contact-head__title{
  margin:12px 0 0;
  font-size:clamp(25px,4.2vw,42px);
  line-height:1.08;
  letter-spacing:-.015em;
  font-weight:800;
  color:var(--mist);
}
.page-contact .contact-head__note{
  margin:12px 0 0;
  font-size:12.5px;
  letter-spacing:.08em;
  color:var(--steel);
}

/* ---------- 渠道卡 ---------- */
.page-contact .channel-grid{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:clamp(14px,2vw,20px);
}
.page-contact .channel-card{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:clamp(18px,2.4vw,26px);
  border:1px solid var(--pc-line);
  background:linear-gradient(160deg,rgba(10,34,56,.94),rgba(4,18,29,.94));
  box-shadow:var(--shadow-soft);
  transition:transform 200ms var(--ease),border-color 200ms var(--ease);
}
.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within{
  transform:translateY(-3px);
  border-color:var(--hair-cyan);
}
.page-contact .channel-card__key{
  position:absolute;
  top:16px;
  right:16px;
  padding:2px 8px;
  border:1px solid var(--hair-cyan);
  font-size:11px;
  color:var(--cyan);
}
.page-contact .channel-card__title{
  margin:0;
  padding-right:44px;
  font-size:19px;
  line-height:1.3;
  letter-spacing:.02em;
  color:var(--mist);
}
.page-contact .channel-card__value{
  margin:0;
  font-size:clamp(15px,2.2vw,18px);
  line-height:1.55;
  color:var(--orange);
  overflow-wrap:anywhere;
}
.page-contact .channel-card__value--plain{
  font-family:var(--font-sans);
  font-size:15px;
  line-height:1.7;
  color:var(--mist);
}
.page-contact .channel-card__desc{
  margin:0;
  font-size:14.5px;
  line-height:1.78;
  color:rgba(230,241,245,.78);
}
.page-contact .channel-card .tag{
  align-self:flex-start;
  margin-top:auto;
}

/* ---------- 公告 ---------- */
.page-contact .contact-announce__grid{
  display:grid;
  gap:clamp(24px,4vw,46px);
}
.page-contact .contact-announce__para{
  margin:16px 0 0;
  max-width:56ch;
  font-size:15.5px;
  line-height:1.85;
  color:rgba(230,241,245,.82);
}
.page-contact .contact-announce__details{
  margin-top:22px;
  border:1px solid var(--pc-line);
  background:rgba(6,43,42,.55);
}
.page-contact .contact-announce__details summary{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  padding:14px 16px;
  cursor:pointer;
  font-size:14px;
  letter-spacing:.04em;
  color:var(--cyan);
  list-style:none;
}
.page-contact .contact-announce__details summary::-webkit-details-marker{display:none;}
.page-contact .contact-announce__details summary::after{
  content:"+";
  font-family:var(--font-mono);
  font-size:16px;
  color:var(--cyan);
}
.page-contact .contact-announce__details[open] summary::after{content:"–";}
.page-contact .contact-announce__details-body{
  padding:0 16px 16px;
}
.page-contact .contact-announce__details-body p{
  margin:0 0 10px;
  font-size:14px;
  line-height:1.8;
  color:rgba(230,241,245,.78);
}
.page-contact .contact-announce__details-body p:last-child{margin-bottom:0;}
.page-contact .contact-announce__cta{margin-top:24px;}
.page-contact .contact-announce__side{
  display:grid;
  gap:clamp(16px,2.4vw,22px);
}
.page-contact .contact-announce__visual{
  margin:0;
  border:1px solid var(--pc-line);
  background:var(--teal-ink);
}
.page-contact .contact-announce__visual img{
  display:block;
  width:100%;
  height:auto;
  aspect-ratio:3/2;
  object-fit:cover;
}
.page-contact .contact-paper{
  background:var(--paper);
  color:var(--ink);
  padding:clamp(18px,2.6vw,28px);
  box-shadow:var(--shadow-soft);
}
.page-contact .contact-paper__label{
  margin:0 0 14px;
  font-size:12px;
  letter-spacing:.12em;
  color:rgba(4,18,29,.62);
}
.page-contact .timeline{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:14px;
}
.page-contact .timeline__item{
  display:grid;
  gap:6px;
  padding-bottom:14px;
  border-bottom:1px solid rgba(4,18,29,.12);
}
.page-contact .timeline__item:last-child{
  padding-bottom:0;
  border-bottom:0;
}
.page-contact .timeline__time{
  justify-self:start;
  padding:3px 9px;
  background:var(--teal-ink);
  color:var(--cyan);
  font-size:11.5px;
  letter-spacing:.06em;
}
.page-contact .timeline__text{
  font-size:14px;
  line-height:1.72;
  color:rgba(4,18,29,.8);
}

/* ---------- 合作 ---------- */
.page-contact .contact-partner{
  background:linear-gradient(120deg,rgba(47,191,113,.16),rgba(10,34,56,0) 58%);
}
.page-contact .contact-partner__lede{
  margin:0;
  max-width:64ch;
  font-size:15.5px;
  line-height:1.88;
  color:rgba(230,241,245,.84);
}
.page-contact .partner-stats{
  list-style:none;
  margin:clamp(22px,3vw,34px) 0 0;
  padding:0;
  display:grid;
  gap:1px;
  border:1px solid var(--pc-line);
  background:var(--pc-line);
}
.page-contact .partner-stats li{
  display:grid;
  gap:6px;
  padding:clamp(16px,2.4vw,24px);
  background:rgba(4,18,29,.9);
}
.page-contact .partner-stats__num{
  font-size:clamp(24px,4vw,34px);
  line-height:1;
  color:var(--cyan);
}
.page-contact .partner-stats__label{
  font-size:13px;
  line-height:1.6;
  color:rgba(230,241,245,.76);
}
.page-contact .partner-callout{
  margin-top:clamp(22px,3vw,32px);
  padding:clamp(18px,2.6vw,28px);
  border:1px solid var(--hair-cyan);
  background:rgba(6,43,42,.62);
  display:grid;
  gap:16px;
}
.page-contact .partner-callout__text{
  margin:0;
  font-size:15px;
  line-height:1.85;
  color:rgba(230,241,245,.86);
}
.page-contact .partner-callout__mail{
  color:var(--orange);
  overflow-wrap:anywhere;
}
.page-contact .partner-callout .btn{justify-self:start;}

/* ---------- 邮寄与准备 ---------- */
.page-contact .contact-desk__grid{
  display:grid;
  gap:clamp(24px,4vw,48px);
}
.page-contact .contact-address{
  margin:16px 0 0;
  padding:14px 16px;
  border-left:3px solid var(--cyan);
  background:rgba(10,34,56,.82);
  font-style:normal;
  font-size:16px;
  line-height:1.7;
  letter-spacing:.02em;
  color:var(--mist);
}
.page-contact .contact-desk__para{
  margin:16px 0 0;
  font-size:15px;
  line-height:1.85;
  color:rgba(230,241,245,.8);
}
.page-contact .contact-desk__para--small{
  font-size:14px;
  line-height:1.8;
  color:rgba(230,241,245,.72);
}
.page-contact .contact-desk__para .mono{color:var(--orange);}
.page-contact .contact-desk__block--narrow{
  padding:clamp(18px,2.6vw,28px);
  border:1px solid var(--pc-line);
  background:linear-gradient(170deg,rgba(10,34,56,.7),rgba(4,18,29,.7));
}
.page-contact .contact-checklist{
  list-style:none;
  margin:18px 0 0;
  padding:0;
  display:grid;
  gap:0;
  border-top:1px solid var(--pc-line-soft);
}
.page-contact .contact-checklist li{
  display:flex;
  align-items:baseline;
  gap:12px;
  padding:13px 0;
  border-bottom:1px solid var(--pc-line-soft);
  font-size:14.5px;
  line-height:1.6;
  color:rgba(230,241,245,.86);
}
.page-contact .contact-checklist__idx{
  flex:0 0 auto;
  font-size:11px;
  letter-spacing:.08em;
  color:var(--turf);
}
.page-contact .contact-desk__block--narrow .btn{margin-top:20px;}

/* ---------- 后续入口 ---------- */
.page-contact .contact-next__list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:1px;
  background:var(--pc-line-soft);
  border-top:1px solid var(--pc-line-soft);
}
.page-contact .contact-next__list a{
  display:grid;
  grid-template-columns:auto 1fr;
  grid-template-areas:
    "num title"
    "num desc";
  gap:4px 14px;
  align-items:baseline;
  padding:18px 4px;
  border-bottom:1px solid var(--pc-line-soft);
  text-decoration:none;
  color:var(--mist);
  transition:background 180ms var(--ease),color 180ms var(--ease);
}
.page-contact .contact-next__list a:hover,
.page-contact .contact-next__list a:focus-visible{
  background:rgba(53,242,208,.06);
  outline:none;
}
.page-contact .contact-next__num{
  grid-area:num;
  font-size:12px;
  color:var(--orange);
}
.page-contact .contact-next__title{
  grid-area:title;
  font-size:17px;
  font-weight:700;
  letter-spacing:.02em;
}
.page-contact .contact-next__desc{
  grid-area:desc;
  font-size:13.5px;
  line-height:1.7;
  color:var(--steel);
}

/* ---------- 响应式 ---------- */
@media (min-width:720px){
  .page-contact .channel-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
  .page-contact .partner-stats{grid-template-columns:repeat(2,minmax(0,1fr));}
  .page-contact .contact-next__list a{
    grid-template-columns:auto minmax(0,1fr) minmax(0,1.1fr);
    grid-template-areas:"num title desc";
    align-items:center;
    padding:20px 6px;
  }
}

@media (min-width:900px){
  .page-contact .contact-hero__inner{
    grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);
    align-items:end;
  }
  .page-contact .contact-announce__grid{
    grid-template-columns:minmax(0,1fr) minmax(0,.85fr);
    align-items:start;
  }
  .page-contact .contact-desk__grid{
    grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
    align-items:start;
  }
  .page-contact .partner-stats{grid-template-columns:repeat(4,minmax(0,1fr));}
  .page-contact .partner-callout{
    grid-template-columns:minmax(0,1fr) auto;
    align-items:center;
  }
}

@media (min-width:1180px){
  .page-contact .contact-hero{padding-top:clamp(30px,3vw,52px);}
  .page-contact .contact-announce__side{position:sticky;top:calc(var(--header-h) + 18px);}
}

@media (prefers-reduced-motion:reduce){
  .page-contact .channel-card,
  .page-contact .contact-hero__jump a,
  .page-contact .contact-next__list a{transition:none;}
  .page-contact .channel-card:hover,
  .page-contact .channel-card:focus-within{transform:none;}
}
<<<END>>>