/* ============================================================
   Footer v2 — 多列资源中心
   ============================================================ */
.site-footer{margin-top:76px;background:#fff;border-top:1px solid var(--line)}
.foot-top{
  display:grid;
  grid-template-columns:1.9fr 1fr 1fr 1.25fr 1fr;
  gap:34px;
  padding:52px 28px 40px;
}
@media(max-width:1080px){.foot-top{grid-template-columns:1.6fr 1fr 1fr;row-gap:34px}}
@media(max-width:760px){.foot-top{grid-template-columns:1fr 1fr;padding:40px 20px 30px}}
@media(max-width:460px){.foot-top{grid-template-columns:1fr}}

.foot-brand-col{max-width:300px}
.foot-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:-.5px}
.foot-brand svg{width:28px;height:28px;flex:none}
.foot-tag{font-size:13.5px;color:var(--muted);line-height:1.75;margin:12px 0 16px}
.social{display:flex;gap:9px}
.social a{
  width:36px;height:36px;border-radius:11px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--ink-soft);
  transition:.16s;background:#fff
}
.social a:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);box-shadow:0 8px 18px -10px rgba(255,90,60,.5)}
.social svg{width:17px;height:17px}

.foot-col h4{
  margin:2px 0 14px;font-size:11.5px;letter-spacing:.9px;text-transform:uppercase;
  color:var(--muted);font-weight:800
}
.foot-col a{
  display:flex;align-items:center;gap:5px;font-size:13.5px;color:var(--ink-soft);
  margin-bottom:9px;line-height:1.45;transition:.14s;width:fit-content
}
.foot-col a:hover{color:var(--accent);transform:translateX(2px)}
.foot-col a .ext{font-size:11px;color:#b9aa9c;transition:.14s}
.foot-col a:hover .ext{color:var(--accent)}

.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:18px 28px;font-size:12.5px;color:var(--muted)
}
.foot-links{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.foot-links a:hover{color:var(--accent)}
.foot-links .disclosure{
  background:#f7f1ea;border:1px solid var(--line);border-radius:999px;
  padding:2px 10px;font-size:11.5px;color:#9a8c7e
}
@media(max-width:640px){.foot-bottom{padding:16px 20px;font-size:12px}}