.page-contact{
  --pc-paper:#FFFDF7;
  --pc-line:rgba(18,59,58,.12);
  --pc-shadow:0 30px 60px -46px rgba(18,59,58,.62);
  --pc-gap:clamp(48px,7vw,72px);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumbs{margin-top:20px}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero{
  display:grid;
  gap:32px;
  padding:26px 0 44px;
}
.page-contact .contact-hero__text .label{
  color:var(--celadon);
  letter-spacing:.2em;
  font-size:12px;
}
.page-contact .contact-hero__text h1{
  margin:14px 0 0;
  font-size:clamp(34px,7vw,64px);
  line-height:1.12;
  letter-spacing:-.02em;
  font-weight:800;
  color:var(--ink);
}
.page-contact .contact-hero__text .lead{
  margin:18px 0 0;
  max-width:32em;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink-80);
}
.page-contact .contact-hero__hint{
  list-style:none;
  margin:22px 0 0;
  padding:0;
  display:grid;
  gap:9px;
  font-size:14px;
  line-height:1.7;
  color:var(--ink-60);
}
.page-contact .contact-hero__hint li{
  position:relative;
  padding-left:20px;
}
.page-contact .contact-hero__hint li::before{
  content:"";
  position:absolute;
  left:0;
  top:.78em;
  width:9px;
  height:1px;
  background:var(--coral);
}
.page-contact .contact-hero__figure{
  position:relative;
  margin:0;
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--mist);
  box-shadow:var(--shadow-soft);
}
.page-contact .contact-hero__figure::before{
  content:"";
  position:absolute;
  inset:auto -18% -30% auto;
  width:58%;
  aspect-ratio:1;
  border-radius:50%;
  background:radial-gradient(circle at 40% 40%,rgba(248,242,231,.85),rgba(248,242,231,0) 68%);
  pointer-events:none;
}
.page-contact .contact-hero__figure img{
  display:block;
  width:100%;
  height:auto;
  object-fit:cover;
}

/* ---------- 页内索引 ---------- */
.page-contact .contact-index{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  padding:0 0 6px;
  border-bottom:1px solid var(--sand);
}
.page-contact .contact-index a{
  display:inline-block;
  padding:8px 12px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:12.5px;
  letter-spacing:.1em;
  color:var(--ink-60);
  text-decoration:none;
  transition:color .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease);
}
.page-contact .contact-index a:hover,
.page-contact .contact-index a:focus-visible{
  color:var(--lake);
  border-color:var(--lake);
}
.page-contact .contact-index a.is-active{
  color:var(--celadon);
  border-color:var(--celadon);
  background:rgba(47,111,99,.08);
}

/* ---------- 通用小节标题 ---------- */
.page-contact .sec-head{
  max-width:38em;
  margin-bottom:26px;
}
.page-contact .sec-head .label{
  color:var(--celadon);
  letter-spacing:.2em;
  font-size:12px;
  margin:0;
}
.page-contact .sec-head h2{
  margin:12px 0 0;
  font-size:clamp(23px,3.4vw,34px);
  line-height:1.26;
  letter-spacing:-.01em;
  font-weight:800;
  color:var(--ink);
}
.page-contact .sec-head p{
  margin:12px 0 0;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-60);
}

/* ---------- 三类来信 ---------- */
.page-contact .contact-channels{
  margin-top:36px;
  padding:clamp(22px,4vw,46px);
  border-radius:28px;
  border:1px solid var(--pc-line);
  background:linear-gradient(158deg,var(--mist) 0%,var(--cream) 62%);
}
.page-contact .letters{
  display:grid;
  gap:18px;
}
.page-contact .letter{
  position:relative;
  background:var(--pc-paper);
  border:1px solid var(--pc-line);
  border-top:3px solid var(--celadon);
  border-radius:var(--radius);
  padding:22px 22px 18px;
  box-shadow:var(--pc-shadow);
}
.page-contact .letter::after{
  content:"";
  position:absolute;
  top:0;
  right:0;
  border-style:solid;
  border-width:0 24px 24px 0;
  border-color:transparent var(--cream) transparent transparent;
  border-top-right-radius:var(--radius-sm);
  pointer-events:none;
}
.page-contact .letter--lake{border-top-color:var(--lake)}
.page-contact .letter--indigo{border-top-color:var(--indigo)}
.page-contact .letter--lake .letter__no{color:var(--lake)}
.page-contact .letter--indigo .letter__no{color:var(--indigo)}
.page-contact .letter__no{
  margin:0;
  font-size:12px;
  letter-spacing:.2em;
  color:var(--celadon);
}
.page-contact .letter h3{
  margin:8px 0 0;
  font-size:20px;
  font-weight:750;
  color:var(--ink);
}
.page-contact .letter p{
  margin:10px 0 0;
  font-size:14.5px;
  line-height:1.8;
  color:var(--ink-60);
}
.page-contact details{
  margin-top:14px;
}
.page-contact .letter details{
  border-top:1px dashed var(--sand);
  padding-top:12px;
}
.page-contact summary{
  display:flex;
  align-items:center;
  gap:8px;
  cursor:pointer;
  list-style:none;
  font-size:13px;
  letter-spacing:.04em;
  color:var(--lake);
}
.page-contact summary::-webkit-details-marker{display:none}
.page-contact summary::before{
  content:"＋";
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:16px;
  height:16px;
  font-size:12px;
  line-height:1;
  color:var(--celadon);
  border:1px solid rgba(47,111,99,.4);
  border-radius:50%;
  flex:none;
}
.page-contact details[open] summary::before{
  content:"－";
  background:var(--mist);
}
.page-contact .letter ul,
.page-contact .prep__item ul{
  margin:10px 0 0;
  padding-left:18px;
  font-size:14px;
  line-height:1.9;
  color:var(--ink-60);
}
.page-contact .letter li,
.page-contact .prep__item li{margin:4px 0}

/* ---------- 客服渠道 ---------- */
.page-contact .contact-direct{
  margin-top:var(--pc-gap);
}
.page-contact .contact-direct__panel{
  display:grid;
  gap:26px;
  padding:clamp(24px,4.4vw,52px);
  border-radius:30px;
  color:var(--cream);
  background:
    radial-gradient(120% 130% at 88% -10%,#1C5350 0%,rgba(28,83,80,0) 58%),
    linear-gradient(160deg,var(--ink) 0%,var(--ink-deep) 100%);
  box-shadow:0 40px 70px -50px rgba(18,59,58,.9);
}
.page-contact .contact-direct__intro .label{
  margin:0;
  color:var(--gold);
  letter-spacing:.2em;
  font-size:12px;
}
.page-contact .contact-direct__intro h2{
  margin:12px 0 0;
  font-size:clamp(23px,3.4vw,34px);
  line-height:1.26;
  font-weight:800;
  color:var(--cream);
}
.page-contact .contact-direct__intro p{
  margin:14px 0 0;
  max-width:26em;
  font-size:15px;
  line-height:1.85;
  color:var(--cream-60);
}
.page-contact .contact-direct__items{
  display:grid;
  gap:22px;
}
.page-contact .contact-direct__item{
  border-top:1px solid rgba(248,242,231,.2);
  padding-top:16px;
}
.page-contact .contact-direct__key{
  margin:0;
  font-size:12px;
  letter-spacing:.16em;
  color:var(--cream-60);
}
.page-contact .contact-direct__value{
  margin:8px 0 0;
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(18px,4.4vw,32px);
  line-height:1.3;
  color:#FFFFFF;
  overflow-wrap:anywhere;
}
.page-contact .contact-direct__note{
  margin:10px 0 0;
  max-width:34em;
  font-size:14px;
  line-height:1.8;
  color:var(--cream-60);
}

/* ---------- 写前准备 ---------- */
.page-contact .contact-prep{
  margin-top:var(--pc-gap);
}
.page-contact .contact-prep__grid{
  display:grid;
  gap:30px;
}
.page-contact .contact-prep__text .label{
  margin:0;
  color:var(--celadon);
  letter-spacing:.2em;
  font-size:12px;
}
.page-contact .contact-prep__text h2{
  margin:12px 0 0;
  font-size:clamp(23px,3.4vw,34px);
  line-height:1.26;
  font-weight:800;
  color:var(--ink);
}
.page-contact .contact-prep__text .lead{
  margin:14px 0 6px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--ink-60);
}
.page-contact .prep__item{
  margin-top:12px;
  padding:15px 18px;
  background:var(--pc-paper);
  border:1px solid var(--pc-line);
  border-radius:var(--radius-sm);
}
.page-contact .prep__item summary{
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  letter-spacing:0;
}
.page-contact .contact-prep__figure{
  margin:0;
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--sand);
  box-shadow:var(--shadow-soft);
}
.page-contact .contact-prep__figure img{
  display:block;
  width:100%;
  height:auto;
  object-fit:cover;
}
.page-contact .contact-prep__figure figcaption{
  padding:12px 16px 14px;
  font-size:13px;
  line-height:1.7;
  color:var(--ink-60);
  background:var(--cream);
  border-top:1px solid var(--sand);
}

/* ---------- 通信地址 ---------- */
.page-contact .contact-address{
  margin-top:var(--pc-gap);
}
.page-contact .address-band{
  display:grid;
  gap:8px;
  margin-top:6px;
  padding:24px clamp(20px,3vw,34px);
  border-radius:var(--radius);
  border-left:6px solid var(--celadon);
  background:linear-gradient(100deg,var(--sand) 0%,#E6DFD2 100%);
}
.page-contact .address-band__label{
  margin:0;
  font-size:12px;
  letter-spacing:.18em;
  color:var(--ink-60);
}
.page-contact .address-band__value{
  margin:0;
  font-size:clamp(17px,2.6vw,23px);
  line-height:1.55;
  font-weight:700;
  color:var(--ink);
}
.page-contact .address-band__note{
  margin:0;
  font-size:14px;
  line-height:1.8;
  color:var(--ink-60);
}

/* ---------- 回信节奏 ---------- */
.page-contact .contact-rhythm{
  margin-top:var(--pc-gap);
}
.page-contact .rhythm{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:18px;
}
.page-contact .rhythm li{
  position:relative;
  padding:20px 20px 22px;
  border-radius:var(--radius);
  background:var(--pc-paper);
  border:1px solid var(--pc-line);
  border-bottom:2px solid rgba(44,110,143,.28);
}
.page-contact .rhythm__no{
  margin:0;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.18em;
  color:var(--lake);
}
.page-contact .rhythm h3{
  margin:10px 0 0;
  font-size:18px;
  font-weight:750;
  color:var(--ink);
}
.page-contact .rhythm p{
  margin:9px 0 0;
  font-size:14.5px;
  line-height:1.8;
  color:var(--ink-60);
}

/* ---------- 收尾提示 ---------- */
.page-contact .contact-closing{
  margin:var(--pc-gap) 0 72px;
  padding:clamp(24px,4vw,40px);
  border-radius:28px;
  border:1px solid var(--pc-line);
  background:linear-gradient(125deg,rgba(220,235,230,.85) 0%,rgba(248,242,231,.95) 70%);
}
.page-contact .contact-closing h2{
  margin:0;
  font-size:clamp(21px,3.2vw,30px);
  line-height:1.3;
  font-weight:800;
  color:var(--ink);
}
.page-contact .contact-closing p{
  margin:14px 0 0;
  max-width:40em;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-60);
}
.page-contact .contact-closing__actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
}
.page-contact .contact-closing__meta{
  font-size:14px;
}
.page-contact .contact-closing__meta a{
  color:var(--lake);
  text-decoration:none;
  border-bottom:1px solid rgba(44,110,143,.35);
  margin:0 2px;
}
.page-contact .contact-closing__meta a:hover,
.page-contact .contact-closing__meta a:focus-visible{
  color:var(--coral);
  border-bottom-color:var(--coral);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width:820px){
  .page-contact .contact-direct__panel{
    grid-template-columns:1fr 1.15fr;
    gap:44px;
    align-items:start;
  }
  .page-contact .contact-direct__items{gap:28px}
  .page-contact .address-band{
    grid-template-columns:120px 1fr;
    align-items:center;
    gap:10px 28px;
  }
  .page-contact .address-band__label{grid-row:span 2;align-self:center}
  .page-contact .rhythm{
    grid-template-columns:repeat(3,1fr);
    gap:22px;
  }
  .page-contact .rhythm li::after{
    content:"";
    position:absolute;
    top:30px;
    right:-14px;
    width:24px;
    height:1px;
    background:var(--sand);
  }
  .page-contact .rhythm li:last-child::after{display:none}
}

@media (min-width:900px){
  .page-contact .contact-hero{
    grid-template-columns:1.04fr .96fr;
    align-items:center;
    gap:56px;
    padding:34px 0 52px;
  }
  .page-contact .contact-prep__grid{
    grid-template-columns:1.06fr .94fr;
    gap:52px;
    align-items:start;
  }
  .page-contact .contact-prep__figure{
    position:sticky;
    top:calc(var(--bar-h) + 24px);
  }
}

@media (min-width:960px){
  .page-contact .letters{
    grid-template-columns:repeat(3,1fr);
    align-items:start;
  }
  .page-contact .letter:nth-child(2){margin-top:44px}
  .page-contact .letter:nth-child(3){margin-top:88px}
}

@media (prefers-reduced-motion:reduce){
  .page-contact .contact-index a{transition:none}
}
<<<END>>>