/* ============================================================
   404.html 独立样式 · 走丢导航风
   ============================================================ */

/* ---------- 404 主视觉 ---------- */
.nf-hero{
  position:relative;overflow:hidden;padding:200px 0 110px;
  background:
    radial-gradient(720px 380px at 85% 12%,rgba(217,190,133,.18),transparent 60%),
    radial-gradient(520px 320px at 6% 88%,rgba(195,164,104,.10),transparent 60%),
    linear-gradient(160deg,#2A2E35 0%,#1B1E23 72%,#25282E 100%);
  color:#E9E6DE;
}
.nf-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);
}
.nf-hero-inner{position:relative;z-index:2;max-width:860px}
.nf-hero-code{
  font-family:var(--font-serif);font-size:clamp(120px,22vw,220px);
  line-height:1;font-weight:700;letter-spacing:8px;
  color:transparent;
  -webkit-text-stroke:1.5px rgba(217,190,133,.55);
  margin-bottom:-34px;
}
.nf-hero-bread{margin-bottom:18px}
.nf-hero-title{
  font-size:42px;letter-spacing:4px;color:#fff;margin-bottom:20px;
  text-shadow:0 4px 30px rgba(0,0,0,.35);
}
.nf-hero-sub{max-width:720px;color:#C6C2B4;font-size:16px;margin-bottom:32px;line-height:2}
.nf-hero-sub a{color:var(--gold-2);border-bottom:1px solid rgba(217,190,133,.5)}
.nf-hero-sub a:hover{color:#fff;border-color:#fff}
.nf-hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:34px}
.btn-hero-line{border-color:rgba(217,190,133,.5);color:#E9DDBE}
.btn-hero-line:hover{border-color:var(--gold-2);background:rgba(217,190,133,.12);color:#fff}

/* ---------- 四条回去的路 ---------- */
.nf-path-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:26px;
}
.nf-path-card{
  position:relative;background:var(--white);
  border:1px solid var(--line);border-radius:var(--radius);
  padding:38px 30px 32px;box-shadow:var(--shadow-soft);
  display:flex;flex-direction:column;gap:12px;
  transition:transform .35s ease,box-shadow .35s ease,border-color .35s ease;
}
.nf-path-card::before{
  content:"";position:absolute;top:0;left:28px;right:28px;height:2px;
  background:linear-gradient(90deg,var(--gold-2),var(--gold-3));
  border-radius:0 0 2px 2px;opacity:0;transition:opacity .35s ease;
}
.nf-path-card:hover{transform:translateY(-8px);box-shadow:var(--shadow);border-color:var(--gold-2)}
.nf-path-card:hover::before{opacity:1}
.nf-path-ico{
  width:58px;height:58px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--gold-soft);color:var(--gold-3);
  border:1px solid var(--line);
}
.nf-path-ico svg{width:28px;height:28px}
.nf-path-card h3{font-size:21px;letter-spacing:1px}
.nf-path-card p{font-size:14px;color:var(--gray);line-height:1.9}
.nf-path-more{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;letter-spacing:1px;color:var(--gold-3);
}
.nf-path-card:hover .nf-path-more{color:var(--gold-3)}

/* ---------- 服务快捷 chips ---------- */
.nf-chip-wrap{
  display:flex;flex-wrap:wrap;justify-content:center;gap:14px;
  max-width:980px;margin:0 auto 30px;
}
.nf-chip{
  padding:11px 24px;border-radius:40px;
  background:var(--white);border:1px solid var(--line);
  font-size:14px;letter-spacing:1px;color:var(--ink-2);
  transition:all .3s ease;box-shadow:var(--shadow-soft);
}
.nf-chip:hover{
  border-color:var(--gold);color:var(--gold-3);
  transform:translateY(-3px);box-shadow:0 12px 26px rgba(160,127,63,.18);
}
.nf-services-note{
  text-align:center;max-width:720px;margin:0 auto;font-size:14px;color:var(--gray);
}
.nf-services-note a{color:var(--gold-3);border-bottom:1px solid var(--gold-2)}

/* ---------- 行业与地区（深色双栏） ---------- */
.nf-biz-inner{display:grid;grid-template-columns:1fr 1fr;gap:60px}
.nf-biz-col h2{font-size:28px;color:#fff;letter-spacing:2px;margin:14px 0 16px}
.nf-biz-col p{font-size:14px;line-height:2;color:#C9C6BC}
.nf-biz-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.nf-biz-links a{
  padding:8px 18px;border-radius:6px;font-size:13px;letter-spacing:1px;
  border:1px solid rgba(217,190,133,.35);color:#E9DDBE;
  background:rgba(255,255,255,.03);transition:all .3s ease;
}
.nf-biz-links a:hover{
  background:linear-gradient(135deg,var(--gold-2),var(--gold-3));
  border-color:transparent;color:#fff;transform:translateY(-2px);
}

/* ---------- 常见问题引导 ---------- */
.nf-help-inner{display:grid;grid-template-columns:1fr 1.1fr;gap:60px;align-items:center}
.nf-help-media img{
  border-radius:var(--radius);box-shadow:var(--shadow);
  border:1px solid var(--line);
}
.nf-help-copy h2{font-size:28px;letter-spacing:2px;margin:14px 0 24px}
.nf-help-list{margin-bottom:22px}
.nf-help-list li{
  display:flex;align-items:center;gap:18px;
  padding:14px 0;border-bottom:1px dashed var(--line-2);
}
.nf-help-list li span{
  flex:none;width:72px;font-size:13px;color:var(--gold-3);
  letter-spacing:2px;
}
.nf-help-list li a{
  font-size:16px;font-weight:600;color:var(--ink);
  border-bottom:1px solid transparent;transition:all .3s ease;
}
.nf-help-list li a:hover{color:var(--gold-3);border-bottom-color:var(--gold)}
.nf-help-copy p{font-size:14px;color:var(--gray)}
.nf-help-copy p a{color:var(--gold-3);border-bottom:1px solid var(--gold-2)}

/* ---------- 底部 CTA ---------- */
.nf-cta{
  position:relative;overflow:hidden;padding:90px 0;
  background:linear-gradient(135deg,#2A2E35,#1C1F25);
}
.nf-cta-inner{position:relative;z-index:2;text-align:center}
.nf-cta-inner h2{font-size:32px;color:#fff;letter-spacing:3px;margin-bottom:16px}
.nf-cta-inner p{color:#C6C2B4;max-width:640px;margin:0 auto 28px;font-size:15px}
.nf-cta-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:16px;margin-bottom:18px}
.btn-cta-line{border-color:rgba(217,190,133,.5);color:#E9DDBE}
.btn-cta-line:hover{border-color:var(--gold-2);background:rgba(217,190,133,.12);color:#fff}
.nf-cta-note{font-size:13px;color:#9A9EA6;letter-spacing:1px}
.nf-cta-map{color:var(--gold-2);border-bottom:1px solid rgba(217,190,133,.5)}

/* ---------- 响应式 ---------- */
@media (max-width:992px){
  .nf-hero{padding:160px 0 80px}
  .nf-path-grid{grid-template-columns:1fr 1fr;gap:20px}
  .nf-biz-inner{grid-template-columns:1fr;gap:44px}
  .nf-help-inner{grid-template-columns:1fr;gap:36px}
}
@media (max-width:640px){
  .nf-hero-title{font-size:26px}
  .nf-path-grid{grid-template-columns:1fr}
  .nf-hero-actions .btn{width:100%}
  .nf-cta-inner h2{font-size:22px}
}