/* ============================================================
   部件信息卡 + 部件清单
   ============================================================ */
.partcard{
  position:fixed; left:308px; bottom:56px; width:330px; max-height:60vh; overflow:auto;
  background:linear-gradient(180deg,rgba(14,19,25,.97),rgba(10,14,19,.97));
  border:1px solid rgba(43,224,206,.35); border-left:3px solid var(--cyan);
  padding:14px 16px 16px; z-index:12; display:none;
  box-shadow:0 18px 50px rgba(0,0,0,.55); backdrop-filter:blur(8px);
  animation:pcIn .18s ease-out;
}
.partcard.show{display:block}
@keyframes pcIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.pc-close{
  position:absolute; right:8px; top:6px; background:none; border:none; color:var(--dim);
  font-size:18px; line-height:1; cursor:pointer; padding:2px 6px;
}
.pc-close:hover{color:var(--red)}
.pc-cat{
  display:inline-block; font-size:10px; letter-spacing:.14em; color:var(--cyan);
  border:1px solid rgba(43,224,206,.4); padding:1px 7px; border-radius:2px; margin-bottom:8px;
}
.partcard h4{margin:0 0 2px; font-family:var(--font-display); font-size:19px; letter-spacing:.04em; color:#EAF2F8}
.pc-en{font-family:var(--font-mono); font-size:10.5px; color:var(--dim); letter-spacing:.06em; margin-bottom:9px}
.partcard p{margin:0 0 10px; font-size:12.5px; line-height:1.75; color:#B9C6D2}
#pcSpec{list-style:none; margin:0 0 10px; padding:0; border-top:1px solid rgba(120,140,160,.16)}
#pcSpec li{
  display:flex; justify-content:space-between; gap:10px; font-size:11.5px;
  padding:4px 0; border-bottom:1px dashed rgba(120,140,160,.12); color:#9FB0C0;
}
#pcSpec li b{color:var(--amber); font-family:var(--font-mono); font-weight:500; text-align:right}
.pc-tip{
  font-size:11.5px; line-height:1.7; color:#8FD46A; background:rgba(73,208,122,.08);
  border-left:2px solid rgba(73,208,122,.5); padding:6px 9px; margin-bottom:10px;
}
.pc-focus{
  width:100%; padding:7px; font-size:12px; letter-spacing:.06em; color:var(--cyan);
  background:rgba(43,224,206,.08); border:1px solid rgba(43,224,206,.4); border-radius:2px;
}
.pc-focus:hover{background:rgba(43,224,206,.16)}

/* 部件清单（帮助面板内） */
.partlist{display:grid; grid-template-columns:1fr 1fr; gap:5px; margin:8px 0 16px; max-height:190px; overflow:auto}
.partlist button{
  text-align:left; font-size:11.5px; padding:6px 8px; color:#A9B7C4;
  background:rgba(255,255,255,.03); border:1px solid rgba(120,140,160,.18); border-radius:2px;
}
.partlist button:hover{border-color:rgba(43,224,206,.5); color:var(--cyan)}

/* 拾取提示 */
#app.picking #scene{cursor:crosshair}
#app.hovering #scene{cursor:pointer}