/* ==========================================================================
   p-changjian-wenti.css · 常见问题FAQ长页
   布局特征：Hero + 字母分类头 + 分组手风琴列表（details/summary）
   ========================================================================== */

.wt-hero{padding:56px 0 10px}
.wt-title{font-size:38px;color:#fff;font-weight:900;line-height:1.35;max-width:720px}
.wt-sub{margin-top:14px;color:var(--muted);font-size:16px;line-height:1.9}

.wt-cat-sec{background:var(--bg);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.wt-cat-head{display:flex;align-items:center;gap:16px;margin-bottom:26px}
.wt-cat-no{width:46px;height:46px;border-radius:12px;background:linear-gradient(135deg,var(--red),var(--red-deep));
  color:#fff;font-size:20px;font-weight:900;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-red)}
.wt-cat-head h2{font-size:24px;color:#fff}

.wt-faq-list{display:grid;gap:14px;max-width:980px}
.wt-item{background:var(--card);border:1px solid var(--line);border-radius:12px;
  padding:18px 24px;transition:border-color .3s}
.wt-item[open]{border-color:rgba(255,184,0,.4);background:linear-gradient(180deg,rgba(255,184,0,.04),var(--card))}
.wt-item summary{cursor:pointer;list-style:none;font-size:16.5px;color:#fff;font-weight:700;
  padding-right:34px;position:relative}
.wt-item summary::-webkit-details-marker{display:none}
.wt-item summary::after{content:"+";position:absolute;right:2px;top:-2px;font-size:22px;color:var(--gold);transition:transform .25s}
.wt-item[open] summary::after{transform:rotate(45deg)}
.wt-item p{margin-top:12px;font-size:14.5px;color:var(--muted);line-height:1.95}
.wt-item a{color:var(--gold)}
.wt-outro{margin-top:30px;font-size:14.5px;color:var(--muted);line-height:2;max-width:760px}
.wt-outro a{color:var(--gold)}

/* ---------- 相关服务入口 ---------- */
.wt-related-sec{background:var(--bg);border-top:1px solid var(--line)}
.wt-related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:26px}
.wt-related{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:22px 20px;
  transition:transform .3s,border-color .3s,box-shadow .3s}
.wt-related:hover{transform:translateY(-4px);border-color:rgba(255,184,0,.4);box-shadow:0 10px 22px rgba(0,0,0,.35)}
.wt-related h3{font-size:16px;color:#fff;margin-bottom:8px}
.wt-related p{font-size:13px;color:var(--muted);line-height:1.8}

@media (max-width:1024px){
  .wt-title{font-size:29px}
  .wt-related-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:720px){
  .wt-title{font-size:24px}
  .wt-item{padding:16px 18px}
}