/* 帧率检测 */
#fps {
  position: fixed;
  right: 16px;
  bottom: 42px;
  z-index: 1919810;
  min-width: 132px;
  padding: 7px 11px 7px 25px;
  overflow: hidden;
  border: 1px solid rgba(70, 205, 155, 0.35);
  border-radius: 8px;
  background: rgba(12, 24, 32, 0.78);
  box-shadow: 0 6px 20px rgba(11, 31, 38, 0.18), inset 0 0 18px rgba(70, 205, 155, 0.06);
  color: #b8f7dc;
  font-family: "Cascadia Code", "Consolas", monospace;
  font-size: 11px;
  letter-spacing: 0.3px;
  line-height: 1.4;
  white-space: nowrap;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

#fps::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 10px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #46d19c;
  box-shadow: 0 0 0 3px rgba(70, 209, 156, 0.14), 0 0 10px #46d19c;
  transform: translateY(-50%);
  animation: fpsPulse 1.8s ease-in-out infinite;
}

#fps::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 20%, rgba(255, 255, 255, 0.08) 50%, transparent 80%);
  transform: translateX(-110%);
  pointer-events: none;
  animation: fpsScan 4s ease-in-out infinite;
}

#fps:hover {
  transform: translateY(-2px);
  box-shadow: 0 9px 24px rgba(11, 31, 38, 0.24), inset 0 0 18px rgba(70, 205, 155, 0.1);
}

[data-theme="light"] #fps {
  background: rgba(255, 255, 255, 0.82);
  color: #19745d;
}

@keyframes fpsPulse {
  0%, 100% { opacity: 0.55; transform: translateY(-50%) scale(0.85); }
  50% { opacity: 1; transform: translateY(-50%) scale(1); }
}

@keyframes fpsScan {
  0%, 55%, 100% { transform: translateX(-110%); }
  75% { transform: translateX(110%); }
}

@media screen and (max-width: 768px) {
  #fps {
    right: 10px;
    bottom: 36px;
    min-width: 0;
    padding: 6px 9px 6px 22px;
    font-size: 10px;
  }
}