.kb-grid {
  display: flex; flex-direction: column; gap: 40px;
  margin-top: 0;
}
.kb-group h3 {
  font-family: var(--mono); font-size: 0.66rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.14em;
  color: var(--muted); margin-bottom: 14px;
  display: flex; align-items: center; gap: 10px;
}
.kb-group h3::after { content: ''; flex: 1; height: 1px; background: var(--b-dim); }
.kb-rows { display: flex; flex-direction: column; gap: 0; }
.kb-row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  padding: 11px 0;
  border-bottom: 1px solid var(--b-dim);
  align-items: center;
}
.kb-row:first-child { border-top: 1px solid var(--b-dim); }
.kb-keys { display: flex; gap: 5px; align-items: center; flex-wrap: wrap; }
.key {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 32px; height: 30px; padding: 0 8px;
  background: var(--bg-e);
  border: 1px solid var(--b-mut);
  border-radius: 4px;
  box-shadow: 0 2px 0 var(--b-dim);
  font-family: var(--mono); font-size: 0.74rem; font-weight: 600;
  color: var(--text); white-space: nowrap;
}
.key.wide { min-width: 72px; }
.key.a { background: rgba(0,212,255,0.1); color: var(--accent); border-color: rgba(0,212,255,0.25); }
.key.g { background: rgba(0,229,160,0.08); color: var(--green); border-color: rgba(0,229,160,0.22); }
.key.r { background: rgba(255,68,102,0.08); color: var(--red); border-color: rgba(255,68,102,0.22); }
.key.o { background: rgba(255,154,0,0.1); color: var(--orange); border-color: rgba(255,154,0,0.22); }
.kb-sep { color: var(--muted); font-family: var(--mono); font-size: 0.72rem; }
.kb-desc { font-size: 0.88rem; color: var(--sub); line-height: 1.5; }
.kb-desc b { color: var(--text); font-weight: 600; }
.kb-desc .note { font-family: var(--mono); font-size: 0.74rem; color: var(--muted); margin-top: 2px; display: block; }
@media (max-width: 640px) {
  .kb-row { grid-template-columns: 1fr; gap: 8px; }
}