/* ==========================================================================
   404.html · 页面未找到
   版式：大数字 404 + 钥匙孔图形 + 快捷入口卡 + CTA
   ========================================================================== */

.nf-hero{padding:170px 0 40px}
.nf-hero-in{display:grid;grid-template-columns:auto 1fr;gap:50px;align-items:center;max-width:960px}
.nf-glyph svg{width:200px;height:auto}
.nf-code{
  font-family:var(--font-serif);font-size:clamp(80px,14vw,150px);line-height:1;color:var(--brown-bg);
  letter-spacing:-.02em;display:block;
}
.nf-copy h1{margin:6px 0 14px}
.nf-desc{color:var(--ink-2);font-size:15.5px;line-height:2;max-width:480px}
.nf-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}

/* ---------- 快捷入口 ---------- */
.nf-links{padding:50px 0 10px}
.nf-grid{margin-top:34px;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;align-items:start}
.nf-card{
  background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);padding:26px 24px;
  display:flex;flex-direction:column;gap:8px;
}
.nf-card:nth-child(odd){transform:translateY(16px)}
.nf-card h3{font-size:18px}
.nf-card p{font-size:13.5px;color:var(--ink-2);line-height:1.8;flex:1}
.nf-card .arrow-link{margin-top:8px}

/* ---------- CTA ---------- */
.nf-cta{margin-top:70px;background:var(--brown);color:#efe8dc}
.nf-cta-in{padding:60px 28px;text-align:center}
.nf-cta-in h2{color:#fff;margin-bottom:12px}
.nf-cta-in p{color:rgba(255,255,255,.7);font-size:14.5px}
.nf-cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:24px}
.nf-cta-line{color:#fff;border-color:rgba(255,255,255,.45)}
.nf-cta-line:hover{background:#fff;color:var(--brown)}

@media (max-width:1024px){
  .nf-hero-in{grid-template-columns:1fr;text-align:center}
  .nf-glyph{display:none}
  .nf-grid{grid-template-columns:1fr 1fr}
  .nf-card:nth-child(odd){transform:none}
}
@media (max-width:640px){
  .nf-grid{grid-template-columns:1fr}
}