/* ======== 反馈星球悬浮球 ======== */
#fbPlanet {
  position: fixed; z-index: 9999;
  cursor: grab;
  transition: none;
  user-select: none;
}
#fbPlanet canvas {
  display: block;
  pointer-events: none;
}

/* ======== 反馈卡片 ======== */
#fbCard {
  position: fixed; z-index: 9998;
  width: 340px; max-height: 480px;
  background: rgba(20,22,30,.94);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 18px;
  box-shadow: 0 20px 60px rgba(0,0,0,.5), 0 0 80px rgba(100,140,255,.1);
  padding: 20px;
  color: #e0e0e0;
  font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  display: none;
  flex-direction: column; gap: 12px;
  animation: fbFadeIn .3s ease;
}
@keyframes fbFadeIn { from { opacity:0; transform:translateY(10px); } to { opacity:1; transform:translateY(0); } }

#fbCard h3 {
  margin: 0; font-size: 16px; font-weight: 600;
  color: #fff; display: flex; align-items: center; gap: 8px;
}
#fbCard h3 .dot { width:8px;height:8px;border-radius:50%;background:#ff6b6b;box-shadow:0 0 8px #ff6b6b; }

#fbCard textarea {
  width: 100%; height: 120px;
  padding: 10px 12px;
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 10px;
  background: rgba(255,255,255,.05);
  color: #e0e0e0; font-size: 13px; line-height: 1.6;
  resize: none; outline: none;
  transition: border-color .25s;
}
#fbCard textarea:focus { border-color: rgba(100,140,255,.5); }

#fbCard .fb-row {
  display: flex; gap: 8px; align-items: center;
}
#fbCard .fb-type {
  flex: 1; padding: 7px 0;
  border-radius: 8px; border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
  color: #aaa; font-size: 12px; text-align: center;
  cursor: pointer; transition: all .2s;
}
#fbCard .fb-type:hover { border-color: rgba(255,255,255,.25); color: #ddd; }
#fbCard .fb-type.active {
  background: rgba(100,140,255,.15);
  border-color: rgba(100,140,255,.4);
  color: #8eaaff;
}

#fbCard .fb-submit {
  width: 100%; padding: 10px;
  border-radius: 10px; border: none;
  background: linear-gradient(135deg, #5b7fff, #8b5cf6);
  color: #fff; font-size: 14px; font-weight: 600;
  cursor: pointer; transition: opacity .2s;
}
#fbCard .fb-submit:hover { opacity: .9; }
#fbCard .fb-submit:disabled { opacity: .4; cursor: not-allowed; }

#fbCard .fb-close {
  position: absolute; top: 12px; right: 14px;
  width: 28px; height: 28px; line-height: 28px;
  text-align: center; border-radius: 50%;
  background: rgba(255,255,255,.08);
  color: #888; font-size: 16px; cursor: pointer;
  border: none; transition: all .2s;
}
#fbCard .fb-close:hover { background: rgba(255,255,255,.15); color: #fff; }

#fbCard .fb-result {
  font-size: 12px; text-align: center; padding: 4px 0;
  min-height: 20px;
}
#fbCard .fb-result.ok { color: #4ade80; }
#fbCard .fb-result.err { color: #f87171; }