/* 全局导航 + 页脚 公共样式（v4.1.0）
   设计 token 与现有页面一致：主色 #3B5BFD / 辅助 #7B5CF5、浅底 #f4f6fb */
.gtop {
  background:#fff; border-bottom:1px solid #e8ecf5;
  position:sticky; top:0; z-index:100;
}
.gtop-inner { display:flex; align-items:center; justify-content:space-between; height:60px; }
.gbrand { display:flex; align-items:center; gap:7px; text-decoration:none; color:#1c2333; font-weight:700; font-size:17px; }
.glogo { width:30px; height:30px; border-radius:8px; background:linear-gradient(135deg,#3B5BFD,#7B5CF5); color:#fff; display:flex; align-items:center; justify-content:center; font-size:14px; flex:none; }
.gname { font-weight:700; }
.gsep { color:#cdd3e0; font-weight:400; }
.gsub { color:#8a93a6; font-weight:400; font-size:13px; }
.gnav { display:flex; align-items:center; gap:4px; }
.gnav a {
  text-decoration:none; color:#5b6478; font-size:14px; padding:8px 12px; border-radius:8px; transition:.15s; white-space:nowrap;
}
.gnav a:hover { background:#f0f3ff; color:#3B5BFD; }
.gnav a.active { color:#3B5BFD; background:#f0f3ff; font-weight:600; }
.gcta {
  text-decoration:none; background:linear-gradient(135deg,#3B5BFD,#7B5CF5); color:#fff;
  font-size:14px; font-weight:600; padding:9px 18px; border-radius:9px; transition:.15s; white-space:nowrap;
}
.gcta:hover { opacity:.92; transform:translateY(-1px); }

.gfoot { background:#0f1424; color:#aeb6c8; margin-top:48px; padding:40px 0 22px; }
.gfoot-inner { display:flex; flex-wrap:wrap; gap:32px; }
.gfoot-col { min-width:140px; flex:1; }
.gfoot-col h4 { color:#fff; font-size:14px; margin-bottom:12px; font-weight:600; }
.gfoot-col a { display:block; color:#aeb6c8; text-decoration:none; font-size:13px; padding:4px 0; transition:.15s; }
.gfoot-col a:hover { color:#fff; }
.gfoot-brand { flex:2; min-width:240px; }
.gfoot-brand .gbrand { color:#fff; margin-bottom:10px; }
.gfoot-brand .glogo { background:linear-gradient(135deg,#3B5BFD,#7B5CF5); }
.gfoot-desc { font-size:13px; line-height:1.7; max-width:320px; color:#8b93a8; }
.gfoot-bottom { margin-top:28px; padding-top:18px; border-top:1px solid rgba(255,255,255,.08); font-size:12px; color:#7d8597; }
.gfoot-bottom a { color:#8b93a8; text-decoration:none; }
.gfoot-bottom a:hover { color:#fff; }

@media (max-width:640px) {
  .gnav { display:none; }
  .gsub { display:none; }
}