/* ================================================================
   液态玻璃底部导航栏 - 完全照搬参考文件
   ================================================================ */
.tab-bar {
  position: fixed !important;
  bottom: 24px !important;
  left: 50% !important;
  transform: translateX(-50%) !important;
  width: calc(100% - 32px) !important;
  max-width: 380px !important;
  height: 72px !important;
  display: flex !important;
  align-items: center !important;
  justify-content: space-around !important;
  padding: 0 8px !important;
  z-index: 100 !important;
  border-radius: 9999px !important;
  touch-action: none !important;
  backdrop-filter: blur(3px) saturate(130%) !important;
  -webkit-backdrop-filter: blur(3px) saturate(130%) !important;
  background: linear-gradient(180deg,
    rgba(255,255,255,0.22) 0%,
    rgba(255,255,255,0.10) 45%,
    rgba(255,255,255,0.06) 100%) !important;
  border: 1px solid rgba(255,255,255,0.5) !important;
  box-shadow:
    inset 0 1.5px 1px rgba(255,255,255,0.7),
    inset 0 -1.5px 2px rgba(170,180,210,0.12),
    0 6px 24px rgba(80,100,160,0.09) !important;
  margin: 0 !important;
}
.tab-bar::after {
  content: '' !important;
  position: absolute !important;
  top: 1px !important; left: 6% !important; right: 6% !important;
  height: 1.5px !important;
  background: linear-gradient(90deg,
    transparent 0%, rgba(255,255,255,0.8) 20%,
    rgba(255,255,255,0.9) 50%,
    rgba(255,255,255,0.8) 80%, transparent 100%) !important;
  pointer-events: none !important;
}
.tab-indicator {
  position: absolute !important;
  top: 50% !important;
  left: 8px !important;
  width: calc((100% - 16px) / 4) !important;
  height: 72px !important;
  transform: translateY(-50%) translateX(0) !important;
  z-index: 1 !important;
  pointer-events: none !important;
  margin: 0 !important;
  padding: 0 !important;
}
.tab-indicator .glass {
  position: absolute !important;
  inset: 10px 8px !important;
  border-radius: 9999px !important;
  backdrop-filter: blur(3px) saturate(130%) !important;
  -webkit-backdrop-filter: blur(3px) saturate(130%) !important;
  background: linear-gradient(180deg,
    rgba(255,255,255,0.22) 0%,
    rgba(255,255,255,0.10) 45%,
    rgba(255,255,255,0.06) 100%) !important;
  border: 1px solid rgba(255,255,255,0.65) !important;
  box-shadow:
    inset 0 1.5px 1px rgba(255,255,255,0.75),
    inset 0 -1.5px 2px rgba(170,180,210,0.12),
    0 2px 8px rgba(100,140,230,0.08) !important;
  transition: transform 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94) !important;
  transform-origin: center center !important;
  will-change: transform !important;
  margin: 0 !important;
  padding: 0 !important;
}
.tab-indicator .glass::after {
  content: '' !important;
  position: absolute !important;
  top: 2px !important; left: 12% !important; right: 12% !important;
  height: 1.5px !important;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.9) 50%, transparent) !important;
  border-radius: 9999px !important;
  pointer-events: none !important;
}
@keyframes waterDrop {
  0%   { transform: scaleX(1.25) scaleY(0.8); }
  55%  { transform: scale(1.25); }
  100% { transform: scale(1); }
}
.tab-indicator.pop .glass {
  animation: waterDrop 0.55s cubic-bezier(0.32, 0.72, 0, 1) forwards !important;
}
.tab-indicator.dragging .glass {
  transform: scale(1.2) !important;
  transition: transform 0.2s ease !important;
}
.tab-item {
  flex: 1 !important;
  height: 72px !important;
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 4px !important;
  cursor: pointer !important;
  position: relative !important;
  z-index: 2 !important;
  border: none !important;
  background: none !important;
  color: rgba(80,90,120,0.7) !important;
  transition: color 0.2s ease !important;
  text-decoration: none !important;
  filter: drop-shadow(0 1px 2px rgba(0,0,0,0.06)) !important;
  padding: 0 !important;
  margin: 0 !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  width: auto !important;
  line-height: normal !important;
  text-align: center !important;
  font-size: inherit !important;
}
.tab-item svg {
  width: 25px !important;
  height: 25px !important;
  transition: transform 0.25s ease !important;
  display: inline-block !important;
}
.tab-item span {
  font-size: 11px !important;
  font-weight: 600 !important;
  display: inline !important;
}
.tab-item.active {
  color: #4a7dff !important;
  background: none !important;
  filter: drop-shadow(0 1px 3px rgba(74,125,255,0.22)) !important;
}
.tab-item.active svg {
  transform: scale(1.1) !important;
}
.tab-item.drag-highlight svg {
  transform: scale(1.35) !important;
}
.tab-item.drag-highlight span {
  font-size: 13px !important;
  font-weight: 700 !important;
}
@supports (padding: max(0px)) {
  .tab-bar { bottom: max(24px, env(safe-area-inset-bottom)) !important; }
}