/* ============================================================
   AI GOVERNANCE — page specific
   ============================================================ */
details.rule-acc{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);padding:0 32px;margin-bottom:16px;
  transition:border-color .25s,box-shadow .25s
}
details.rule-acc:last-child{margin-bottom:0}
details.rule-acc > summary::-webkit-details-marker{display:none}
details.rule-acc[open] > summary::after{transform:rotate(-135deg)}
.rule-acc__hd{min-width:0}
.rule-acc__hd h3{font-size:20px;line-height:1.8}
.rule-acc__en{display:block;margin-top:4px;color:var(--accent)}
.rule-acc__policy{margin-top:12px;font-size:14px;line-height:1.8;color:var(--body);font-weight:400}
.rule-acc__body{margin-left:80px;padding:24px 0 32px;border-top:1px solid var(--line);min-width:0}
.rule-acc__body h4{color:var(--muted);margin-bottom:12px}
.rule-acc__body ul{display:flex;flex-direction:column;gap:8px;margin-bottom:24px}
.rule-acc__body li{position:relative;padding-left:16px;font-size:14px;line-height:1.8;color:var(--body)}
.rule-acc__body li::before{
  content:"";position:absolute;left:2px;top:12px;width:5px;height:5px;border-radius:50%;
  background:var(--accent-soft)
}
.rule-acc__body strong{color:var(--ink);font-weight:600}
.proof{padding:16px 16px;border-radius:var(--r-sm);background:var(--bg-tint);border:1px solid var(--line)}
.proof h4{margin-bottom:8px}
.proof p{font-size:14px;line-height:1.8;color:var(--ink)}
.limits{display:flex;flex-direction:column;gap:16px}
.limit{
  display:grid;grid-template-columns:26px 1fr;gap:16px;align-items:start;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-card);
  padding:24px 24px
}
.limit svg{width:20px;height:20px;stroke:var(--accent-soft);fill:none;stroke-width:1.8;margin-top:4px}
.limit p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.76)}
.limit strong{color:var(--white);font-weight:600}
@media (max-width:860px){
  details.rule-acc{padding:0 24px}
  details.rule-acc > summary{grid-template-columns:1fr;gap:16px;padding:24px 32px 24px 0}
  .rule-acc__body{margin-left:0}
}