/* ===== WOK unified header ===== */
.wok-header{
  display:flex;align-items:center;justify-content:space-between;
  gap:14px;padding:14px 22px;
  border-bottom:1px solid var(--border,rgba(255,255,255,.12));
  background:var(--bg,#000);
  font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;
  font-size:15px;line-height:1;
  position:sticky;top:0;z-index:50;
}
.wok-header-left{display:flex;align-items:center;gap:8px;min-width:0;flex:1}
.wok-header-right{display:flex;align-items:center;gap:10px;flex-shrink:0}
.wok-up{
  display:inline-flex;align-items:center;gap:8px;
  padding:4px 8px 4px 4px;border-radius:8px;
  text-decoration:none;color:var(--text,#fff);
  transition:background .12s ease;
}
.wok-up:hover{background:var(--surface-1,#111)}
.wok-up img{width:22px;height:22px;display:block}
.wok-up-label{font-weight:700;letter-spacing:-.01em}
.wok-crumbs{
  display:flex;align-items:center;gap:6px;
  color:var(--text-3,#999);min-width:0;overflow:hidden;
  font-family:'JetBrains Mono','Fira Mono',monospace;
  font-size:14px;
}
.wok-crumbs .sep{color:var(--text-3,#666);user-select:none}
.wok-crumbs .seg{color:var(--text-2,#ccc);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:240px}
.wok-crumbs .seg.last{color:var(--text,#fff);font-weight:600}