.page-contact{
  position:relative;
  overflow-x:clip;
  background:var(--ink);
  color:var(--white);
  font-family:var(--font-body);
}

.page-contact h1,
.page-contact h2,
.page-contact h3{
  margin:0;
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.08;
  letter-spacing:-.005em;
  color:var(--white);
}

.page-contact p{margin:0;}

/* ===== 面包屑 ===== */
.page-contact .breadcrumb{padding:clamp(1rem,3vw,1.75rem) 0 clamp(.5rem,2vw,1rem);}
.page-contact .breadcrumb ol{
  display:flex;
  flex-wrap:wrap;
  gap:.45rem;
  margin:0;
  padding:0;
  list-style:none;
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--mist);
}
.page-contact .breadcrumb li+li::before{content:"/";margin-right:.45rem;color:var(--line);}
.page-contact .breadcrumb a{
  color:var(--mist);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .2s,border-color .2s;
}
.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible{color:var(--cyan);border-bottom-color:var(--cyan);}

/* ===== 共用小件 ===== */
.page-contact .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.6rem;
  margin:0 0 .9rem;
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--cyan);
}
.page-contact .eyebrow::before{content:"";width:26px;height:1px;background:var(--cyan);}

.page-contact .tag{
  display:inline-block;
  padding:.3rem .6rem;
  border:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:.64rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--mist);
}
.page-contact .tag--amber{
  border-color:var(--amber);
  color:var(--amber);
  background:var(--amber-soft);
}

.page-contact .btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:.78rem 1.35rem;
  border:1px solid var(--line);
  background:transparent;
  color:var(--white);
  font-family:var(--font-display);
  font-size:.92rem;
  font-weight:700;
  letter-spacing:.06em;
  text-decoration:none;
  cursor:pointer;
  transition:background .2s,color .2s,border-color .2s;
}
.page-contact .btn--primary{
  background:var(--violet);
  border-color:var(--violet);
  box-shadow:inset 0 0 0 1px rgba(245,243,255,.14);
}
.page-contact .btn--primary:hover,
.page-contact .btn--primary:focus-visible{background:var(--amber);border-color:var(--amber);color:var(--ink);}
.page-contact .btn--ghost:hover,
.page-contact .btn--ghost:focus-visible{border-color:var(--cyan);color:var(--cyan);}
.page-contact .btn:focus-visible{outline:2px solid var(--amber);outline-offset:3px;}

/* ===== 首屏 ===== */
.page-contact .contact-hero{
  position:relative;
  padding:clamp(.5rem,2vw,1rem) 0 clamp(2.25rem,5vw,4rem);
}
.page-contact .contact-hero::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(58% 76% at 88% 0%,var(--violet-soft),transparent 70%),
    radial-gradient(52% 62% at 0% 46%,var(--blue-soft),transparent 72%);
}
.page-contact .contact-hero>.wrap{position:relative;z-index:1;}
.page-contact .contact-hero__grid{
  display:grid;
  gap:clamp(1.6rem,4vw,2.75rem);
  grid-template-columns:minmax(0,1fr);
}
.page-contact .contact-hero h1{
  font-size:clamp(2.1rem,6.4vw,4rem);
  margin-bottom:1.1rem;
  max-width:14em;
}
.page-contact .contact-hero__lede{
  max-width:56ch;
  font-size:clamp(.98rem,1.5vw,1.1rem);
  line-height:1.85;
  color:var(--mist);
  margin-bottom:1.6rem;
}
.page-contact .contact-hero__actions{
  display:flex;
  flex-wrap:wrap;
  gap:.7rem;
  margin-bottom:1.6rem;
}
.page-contact .contact-hero__meta{
  display:grid;
  gap:.55rem;
  margin:0;
  padding:0;
  list-style:none;
  font-size:.84rem;
  color:var(--mist);
}
.page-contact .contact-hero__meta li{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:.6rem;
  padding-top:.55rem;
  border-top:1px solid var(--line-soft);
}
.page-contact .contact-hero__meta .mono{
  font-family:var(--font-mono);
  font-size:.82rem;
  letter-spacing:.02em;
  color:var(--amber);
}

.page-contact .contact-hero__figure{
  position:relative;
  margin:0;
  padding-right:12px;
  padding-bottom:12px;
}
.page-contact .contact-hero__figure img{
  display:block;
  width:100%;
  height:auto;
  max-width:100%;
  object-fit:cover;
  border:1px solid var(--line);
  background:var(--panel);
}
.page-contact .contact-hero__figure::after{
  content:"";
  position:absolute;
  right:0;
  bottom:0;
  width:52%;
  height:40%;
  pointer-events:none;
  border-right:1px solid var(--violet);
  border-bottom:1px solid var(--violet);
  background:linear-gradient(135deg,transparent,rgba(139,92,246,.22));
}
.page-contact .contact-hero__figure figcaption{
  position:relative;
  z-index:1;
  margin-top:.8rem;
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--mist);
}

/* ===== 约局前先看反馈 ===== */
.page-contact .contact-precheck{
  padding:clamp(2.25rem,5vw,3.75rem) 0;
  border-top:1px solid var(--line);
}
.page-contact .contact-precheck__grid{
  display:grid;
  gap:clamp(1.6rem,4vw,3rem);
  grid-template-columns:minmax(0,1fr);
  align-items:start;
}
.page-contact .contact-precheck h2{
  font-size:clamp(1.55rem,3.6vw,2.5rem);
  margin-bottom:1rem;
}
.page-contact .contact-precheck__text{
  font-size:.96rem;
  line-height:1.85;
  color:var(--mist);
  margin-bottom:1.2rem;
}
.page-contact .contact-precheck__link{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:.76rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--blue);
  text-decoration:none;
  padding-bottom:.25rem;
  border-bottom:1px solid var(--blue);
  transition:color .2s,border-color .2s;
}
.page-contact .contact-precheck__link:hover,
.page-contact .contact-precheck__link:focus-visible{color:var(--cyan);border-bottom-color:var(--cyan);}

.page-contact .contact-precheck__list{
  list-style:none;
  margin:0;
  padding:0;
  border-top:1px solid var(--line);
}
.page-contact .contact-precheck__list li{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  gap:1rem;
  padding:1.05rem 0;
  border-bottom:1px solid var(--line);
  transition:background .2s;
}
.page-contact .contact-precheck__list li:hover{background:rgba(139,92,246,.08);}
.page-contact .contact-precheck__num{
  font-family:var(--font-mono);
  font-size:.74rem;
  letter-spacing:.14em;
  color:var(--amber);
  padding-top:.2rem;
}
.page-contact .contact-precheck__list h3{
  font-size:1.02rem;
  margin-bottom:.35rem;
}
.page-contact .contact-precheck__list p{
  font-size:.9rem;
  line-height:1.72;
  color:var(--mist);
}

/* ===== 流程与模板 ===== */
.page-contact .contact-flow{
  padding:clamp(2.25rem,5vw,3.75rem) 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,var(--deep),var(--ink));
}
.page-contact .contact-flow__grid{
  display:grid;
  gap:clamp(1.75rem,4vw,3rem);
  grid-template-columns:minmax(0,1fr);
  align-items:start;
}
.page-contact .contact-flow h2{
  font-size:clamp(1.55rem,3.6vw,2.5rem);
  margin-bottom:.9rem;
}
.page-contact .contact-flow__lede{
  font-size:.95rem;
  line-height:1.85;
  color:var(--mist);
  margin-bottom:1.6rem;
  max-width:52ch;
}

.page-contact .flow-steps{
  position:relative;
  list-style:none;
  margin:0 0 1.75rem;
  padding:0;
}
.page-contact .flow-steps::before{
  content:"";
  position:absolute;
  left:15px;
  top:14px;
  bottom:14px;
  width:1px;
  background:linear-gradient(180deg,var(--violet),var(--cyan),transparent);
}
.page-contact .flow-steps li{
  position:relative;
  display:grid;
  grid-template-columns:32px minmax(0,1fr);
  gap:1rem;
  padding-bottom:1.15rem;
}
.page-contact .flow-steps li:last-child{padding-bottom:0;}
.page-contact .flow-steps__num{
  position:relative;
  z-index:1;
  width:32px;
  height:32px;
  display:grid;
  place-items:center;
  background:var(--amber);
  color:var(--ink);
  font-family:var(--font-mono);
  font-size:.72rem;
  font-weight:700;
}
.page-contact .flow-steps h3{
  font-size:1rem;
  margin-bottom:.3rem;
  padding-top:.25rem;
}
.page-contact .flow-steps p{
  font-size:.89rem;
  line-height:1.72;
  color:var(--mist);
}

.page-contact .contact-flow__figure{
  margin:0;
  padding:0;
}
.page-contact .contact-flow__figure img{
  display:block;
  width:100%;
  height:auto;
  max-width:100%;
  object-fit:cover;
  border:1px solid var(--line);
  background:var(--panel);
}
.page-contact .contact-flow__figure figcaption{
  margin-top:.7rem;
  font-family:var(--font-mono);
  font-size:.66rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--mist);
}

.page-contact .brief-card{
  position:relative;
  border:1px solid var(--line);
  background:var(--panel);
  padding:clamp(1.1rem,3vw,1.6rem);
}
.page-contact .brief-card::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  width:100%;
  height:3px;
  background:linear-gradient(90deg,var(--amber),var(--violet),var(--cyan));
}
.page-contact .brief-card__head h3{
  font-size:1.15rem;
  margin-top:.75rem;
}
.page-contact .brief-card__fields{
  display:grid;
  gap:.55rem;
  margin:1.1rem 0 0;
}
.page-contact .brief-field{
  display:grid;
  gap:.28rem;
  padding:.7rem .85rem;
  border:1px dashed var(--line);
  background:rgba(8,6,15,.5);
  transition:border-color .2s,background .2s;
}
.page-contact .brief-field:hover{border-color:var(--violet);background:var(--violet-soft);}
.page-contact .brief-field dt{
  font-family:var(--font-mono);
  font-size:.64rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--cyan);
}
.page-contact .brief-field dd{
  margin:0;
  font-size:.88rem;
  line-height:1.65;
  color:var(--mist);
}
.page-contact .brief-card__note{
  margin-top:1.1rem;
  padding-top:.85rem;
  border-top:1px solid var(--line-soft);
  font-size:.83rem;
  line-height:1.7;
  color:var(--mist);
}

/* ===== 反馈与纠错 ===== */
.page-contact .contact-feedback{padding:clamp(2.25rem,5vw,3.75rem) 0;}
.page-contact .contact-feedback__head{max-width:62ch;margin-bottom:1.5rem;}
.page-contact .contact-feedback h2{
  font-size:clamp(1.55rem,3.6vw,2.5rem);
  margin-bottom:.9rem;
}
.page-contact .contact-feedback__lede{
  font-size:.95rem;
  line-height:1.85;
  color:var(--mist);
}
.page-contact .contact-feedback__folds{
  border-top:1px solid var(--line);
  padding-top:.9rem;
}
.page-contact .fold{
  border:1px solid var(--line);
  background:var(--panel);
}
.page-contact .fold+.fold{margin-top:.6rem;}
.page-contact .fold summary{
  display:flex;
  align-items:center;
  gap:.9rem;
  padding:.95rem 1.05rem;
  font-family:var(--font-display);
  font-size:.99rem;
  font-weight:700;
  color:var(--white);
  cursor:pointer;
  list-style:none;
  transition:background .2s,color .2s;
}
.page-contact .fold summary::-webkit-details-marker{display:none;}
.page-contact .fold summary::after{
  content:"+";
  margin-left:auto;
  font-family:var(--font-mono);
  font-size:1.1rem;
  color:var(--amber);
}
.page-contact .fold[open] summary::after{content:"−";color:var(--cyan);}
.page-contact .fold summary:hover{background:var(--violet-soft);color:var(--cyan);}
.page-contact .fold summary:focus-visible{outline:2px solid var(--amber);outline-offset:-2px;}
.page-contact .fold__body{
  padding:.9rem 1.05rem 1.05rem;
  border-top:1px solid var(--line-soft);
  font-size:.9rem;
  line-height:1.8;
  color:var(--mist);
}

/* ===== 内容共建 ===== */
.page-contact .contact-collab{
  padding:clamp(2rem,5vw,3.25rem) 0;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,var(--ink),var(--deep));
}
.page-contact .contact-collab__head{max-width:64ch;margin-bottom:1.5rem;}
.page-contact .contact-collab h2{
  font-size:clamp(1.5rem,3.4vw,2.35rem);
  margin-bottom:.9rem;
}
.page-contact .contact-collab__lede{
  font-size:.94rem;
  line-height:1.85;
  color:var(--mist);
}
.page-contact .collab-grid{
  display:grid;
  gap:.9rem;
  grid-template-columns:minmax(0,1fr);
}
.page-contact .collab-card{
  position:relative;
  padding:1.3rem 1.15rem 1.2rem;
  border:1px solid var(--line);
  border-left:3px solid var(--violet);
  background:rgba(27,16,48,.72);
}
.page-contact .collab-card--cyan{border-left-color:var(--cyan);}
.page-contact .collab-card__index{
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.2em;
  color:var(--amber);
}
.page-contact .collab-card h3{
  font-size:1.08rem;
  margin:.45rem 0 .6rem;
}
.page-contact .collab-card p{
  font-size:.9rem;
  line-height:1.75;
  color:var(--mist);
}

/* ===== 联系方式 ===== */
.page-contact .contact-reach{
  padding:clamp(2.25rem,5vw,3.75rem) 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(60% 90% at 100% 0%,var(--blue-soft),transparent 70%),
    var(--deep);
}
.page-contact .contact-reach__grid{
  display:grid;
  gap:clamp(1.5rem,4vw,2.5rem);
  grid-template-columns:minmax(0,1fr);
  align-items:start;
}
.page-contact .contact-reach h2{
  font-size:clamp(1.5rem,3.4vw,2.35rem);
  margin-bottom:.9rem;
}
.page-contact .contact-reach__text{
  font-size:.94rem;
  line-height:1.85;
  color:var(--mist);
  max-width:48ch;
}
.page-contact .reach-list{
  display:grid;
  gap:.6rem;
  margin:0;
  padding:0;
  list-style:none;
}
.page-contact .reach-row{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  align-items:center;
  gap:.9rem;
  padding:.9rem 1rem;
  border:1px solid var(--line);
  background:rgba(27,16,48,.85);
  transition:border-color .2s,background .2s;
}
.page-contact .reach-row:hover{border-color:var(--violet);background:var(--violet-soft);}
.page-contact .reach-row--plain{grid-template-columns:minmax(0,1fr);}
.page-contact .reach-row__label{
  display:block;
  margin-bottom:.32rem;
  font-family:var(--font-mono);
  font-size:.62rem;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--mist);
}
.page-contact .reach-row__value{
  display:block;
  font-family:var(--font-mono);
  font-size:clamp(.84rem,2.4vw,1rem);
  color:var(--white);
  word-break:break-word;
}
.page-contact .copy-btn{
  padding:.5rem .8rem;
  border:1px solid var(--violet);
  background:transparent;
  color:var(--violet);
  font-family:var(--font-mono);
  font-size:.66rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  cursor:pointer;
  transition:background .2s,color .2s,border-color .2s;
}
.page-contact .copy-btn:hover{background:var(--violet);color:var(--white);}
.page-contact .copy-btn:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
.page-contact .copy-btn.is-done{
  background:var(--cyan);
  border-color:var(--cyan);
  color:var(--ink);
}

/* ===== 适用事项表 ===== */
.page-contact .contact-scope{
  padding:clamp(2.25rem,5vw,3.75rem) 0 clamp(2.5rem,6vw,4rem);
}
.page-contact .contact-scope__head{max-width:60ch;margin-bottom:1.4rem;}
.page-contact .contact-scope h2{
  font-size:clamp(1.5rem,3.4vw,2.35rem);
}
.page-contact .scope-table-wrap{
  border:1px solid var(--line);
  overflow-x:auto;
  background:rgba(27,16,48,.5);
}
.page-contact .scope-table{
  width:100%;
  min-width:640px;
  border-collapse:collapse;
  font-size:.88rem;
}
.page-contact .scope-table caption{
  caption-side:top;
  padding:.75rem 1rem;
  text-align:left;
  font-family:var(--font-mono);
  font-size:.64rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--mist);
  border-bottom:1px solid var(--line-soft);
}
.page-contact .scope-table th,
.page-contact .scope-table td{
  padding:.85rem 1rem;
  text-align:left;
  vertical-align:top;
  border-bottom:1px solid var(--line-soft);
}
.page-contact .scope-table thead th{
  font-family:var(--font-mono);
  font-size:.64rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--cyan);
  background:rgba(139,92,246,.12);
  border-bottom:1px solid var(--violet);
  white-space:nowrap;
}
.page-contact .scope-table tbody th{
  font-family:var(--font-display);
  font-weight:700;
  font-size:.94rem;
  color:var(--white);
  white-space:nowrap;
}
.page-contact .scope-table tbody td{
  color:var(--mist);
  line-height:1.7;
}
.page-contact .scope-table tbody tr:last-child th,
.page-contact .scope-table tbody tr:last-child td{border-bottom:0;}
.page-contact .scope-table tbody tr:hover{background:rgba(139,92,246,.09);}
.page-contact .scope-note{
  margin-top:1.1rem;
  padding:.9rem 1rem;
  border-left:3px solid var(--amber);
  background:var(--amber-soft);
  font-size:.88rem;
  line-height:1.78;
  color:var(--mist);
}
.page-contact .scope-note a{
  color:var(--amber);
  text-decoration:none;
  border-bottom:1px solid var(--amber);
  transition:color .2s,border-color .2s;
}
.page-contact .scope-note a:hover,
.page-contact .scope-note a:focus-visible{color:var(--cyan);border-bottom-color:var(--cyan);}

/* ===== 断点 ===== */
@media (min-width:720px){
  .page-contact .collab-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .page-contact .reach-list{grid-template-columns:repeat(2,minmax(0,1fr));}
  .page-contact .reach-row--plain{grid-column:1 / -1;}
}

@media (min-width:900px){
  .page-contact .contact-hero__grid{
    grid-template-columns:minmax(0,1.22fr) minmax(0,.78fr);
    align-items:start;
    gap:clamp(2rem,4vw,3.5rem);
  }
  .page-contact .contact-precheck__grid{
    grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);
    gap:clamp(2rem,5vw,4rem);
  }
  .page-contact .contact-flow__grid{
    grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);
    gap:clamp(2rem,4vw,3.25rem);
  }
  .page-contact .contact-flow__aside{position:sticky;top:96px;}
  .page-contact .contact-reach__grid{
    grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);
    gap:clamp(2rem,5vw,3.5rem);
  }
}

@media (max-width:519px){
  .page-contact .contact-hero__figure{padding-right:8px;padding-bottom:8px;}
  .page-contact .contact-hero__figure::after{width:44%;height:32%;}
  .page-contact .scope-table{min-width:560px;font-size:.84rem;}
  .page-contact .reach-row{grid-template-columns:minmax(0,1fr);}
  .page-contact .copy-btn{justify-self:start;}
}

@media (prefers-reduced-motion:reduce){
  .page-contact *{transition:none !important;}
}
<<<END>>>