/* ==========================================================================
   404.html 私有样式（重写扩充版）
   版式：超大描边背景数字 hero + 编号原因卡 + 工种入口卡 + 服务横条 + 图文推荐
   ========================================================================== */

.nf-hero{
  position:relative;overflow:hidden;
  padding:calc(var(--topbar-h) + var(--header-h) + 70px) 0 80px;
  background:
    radial-gradient(800px 380px at 80% -5%, rgba(143,174,138,.22), transparent 60%),
    var(--cream-3);
  text-align:center;
}
.nf-bg404{
  position:absolute;left:50%;top:46%;transform:translate(-50%,-50%);
  font-family:var(--font-serif);font-weight:900;font-size:clamp(240px,42vw,560px);
  line-height:1;letter-spacing:10px;color:transparent;
  -webkit-text-stroke:2px var(--line);user-select:none;pointer-events:none;opacity:.7;
}
.nf-hero-inner{position:relative;z-index:2}
.nf-code{
  font-family:var(--font-serif);font-weight:900;line-height:1;
  font-size:clamp(96px,18vw,180px);letter-spacing:6px;color:var(--wood);
  margin-bottom:8px;user-select:none;
}
.nf-digit{display:inline-block;opacity:0;transform:translateY(30px) rotate(-4deg);animation:nfPop .6s var(--ease) forwards}
.nf-digit-o{color:var(--green-deep);animation-delay:.16s}
.nf-code .nf-digit:nth-child(3){animation-delay:.32s}
@keyframes nfPop{to{opacity:1;transform:translateY(0) rotate(0)}}
.nf-title{font-size:clamp(26px,3.4vw,40px);letter-spacing:3px;margin-bottom:14px;animation:nfFade .8s .45s both}
.nf-sub{font-size:15px;color:var(--ink-soft);max-width:560px;margin:0 auto 30px;line-height:1.9;animation:nfFade .8s .6s both}
.nf-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;animation:nfFade .8s .75s both}
@keyframes nfFade{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}

/* ---------- 原因说明 ---------- */
.nf-why{padding:80px 0;background:var(--cream)}
.nf-why-tip{max-width:820px;margin:28px auto 0;font-size:13.5px;line-height:1.9;color:var(--ink-soft);background:var(--cream-3);border-radius:var(--radius-sm);padding:14px 20px;border-left:3px solid var(--wood-light)}
.nf-why-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.nf-why-item{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 26px 24px;box-shadow:var(--shadow-sm);position:relative;
  border-left:4px solid var(--wood-light);transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.nf-why-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.nf-why-no{font-family:var(--font-serif);font-size:30px;font-weight:900;color:var(--cream-2);position:absolute;top:16px;right:20px}
.nf-why-item h3{font-size:19px;margin-bottom:10px;padding-right:40px}
.nf-why-item p{font-size:14px;line-height:1.9}

/* ---------- 工种入口 ---------- */
.nf-gz{padding:80px 0;background:var(--cream-3)}
.nf-gz-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.nf-gz-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 20px;box-shadow:var(--shadow-sm);border-top:4px solid var(--green);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);display:block;
}
.nf-gz-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.nf-gz-card h3{font-size:17px;margin-bottom:6px}
.nf-gz-card p{font-size:13px;color:var(--ink-soft);line-height:1.7;margin-bottom:12px;min-height:44px}
.nf-more{font-size:13px;color:var(--green-deep);font-weight:600}

/* ---------- 服务横条 ---------- */
.nf-svc{padding:70px 0;background:var(--cream)}
.nf-svc-row{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.nf-svc-item{
  background:linear-gradient(160deg,var(--cream-2),#f6efe0);border:1px dashed var(--line);
  border-radius:var(--radius-sm);padding:18px 14px;text-align:center;transition:transform .3s var(--ease),background .3s;
}
.nf-svc-item:hover{transform:translateY(-4px);background:var(--white)}
.nf-svc-item h3{font-size:15px;margin-bottom:6px;color:var(--green-dark)}
.nf-svc-item p{font-size:12px;color:var(--ink-soft);line-height:1.6}

/* ---------- 新闻推荐 ---------- */
.nf-news{padding:80px 0;background:var(--cream-3)}
.nf-news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.nf-news-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .35s var(--ease),box-shadow .35s var(--ease);display:block;
}
.nf-news-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.nf-news-img{margin:0;aspect-ratio:16/10;overflow:hidden}
.nf-news-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.nf-news-card:hover .nf-news-img img{transform:scale(1.05)}
.nf-news-body{padding:20px}
.nf-news-tag{display:inline-block;font-size:12px;color:var(--green-deep);background:rgba(143,174,138,.16);padding:3px 12px;border-radius:999px;margin-bottom:10px}
.nf-news-body h3{font-size:17px;margin-bottom:8px;line-height:1.5}
.nf-news-body p{font-size:13.5px;line-height:1.7}

/* ---------- 联系卡 ---------- */
.nf-contact{padding:80px 0;background:var(--cream)}
.nf-contact-inner{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:36px;box-shadow:var(--shadow-md)}
.nf-contact-img{margin:0;border-radius:var(--radius-sm);overflow:hidden}
.nf-contact-img img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10}
.nf-contact-copy h2{font-size:26px;margin-bottom:12px}
.nf-contact-copy p{font-size:14.5px;line-height:1.9;margin-bottom:18px}
.nf-contact-line{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin-bottom:20px}
.nf-contact-phone{font-family:var(--font-serif);font-size:30px;font-weight:700;color:var(--wood-deep);letter-spacing:1px}
.nf-contact-line span{font-size:13px;color:var(--ink-faint)}
.nf-contact-btns{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 对号入座 ---------- */
.nf-route{padding:60px 0;background:var(--cream)}
.nf-route-box{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:36px 40px;box-shadow:var(--shadow-sm);border-left:5px solid var(--wood)}
.nf-route-box h2{font-size:24px;margin-bottom:14px}
.nf-route-box p{font-size:15px;line-height:2;margin-bottom:14px}
.nf-route-box p:last-child{margin-bottom:0}
.nf-route-box strong{color:var(--green-dark)}

/* ---------- 高频疑问 ---------- */
.nf-faq{padding:80px 0;background:var(--cream-3)}
.nf-faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.nf-faq-item{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-sm);padding:18px 22px;box-shadow:var(--shadow-sm)}
.nf-faq-item summary{cursor:pointer;font-weight:600;font-size:15.5px;color:var(--ink);list-style:none;position:relative;padding-right:26px}
.nf-faq-item summary::-webkit-details-marker{display:none}
.nf-faq-item summary::after{content:"";position:absolute;right:4px;top:6px;width:9px;height:9px;border-right:2px solid var(--wood-deep);border-bottom:2px solid var(--wood-deep);transform:rotate(45deg);transition:transform .25s}
.nf-faq-item[open] summary::after{transform:rotate(225deg)}
.nf-faq-item p{font-size:14px;line-height:1.9;margin-top:10px}

/* ---------- 底部 CTA ---------- */
.nf-foot{padding:70px 0;background:var(--green-dark);text-align:center}
.nf-foot-inner h2{color:#f4f1e6;font-size:clamp(22px,3vw,32px);margin-bottom:10px}
.nf-foot-inner p{color:#c6d1bd;margin-bottom:24px}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .nf-gz-grid{grid-template-columns:repeat(2,1fr)}
  .nf-svc-row{grid-template-columns:repeat(3,1fr)}
  .nf-news-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .nf-why-grid{grid-template-columns:1fr}
  .nf-contact-inner{grid-template-columns:1fr;padding:26px}
  .nf-contact-img{order:-1}
}
@media (max-width:640px){
  .nf-news-grid{grid-template-columns:1fr}
  .nf-svc-row{grid-template-columns:repeat(2,1fr)}
}