/* ========== 底部栏外观 ========== */
.tab-bar-capsule {
  display: flex;
  align-items: center;
  justify-content: space-around;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border: 1px solid #8e8e93;
  border-radius: 20px;
  padding: 6px 12px;
  width: 100%;
  transition: all 0.3s ease;
}

.tab-item { 
  display: flex; 
  flex-direction: column; 
  align-items: center; 
  gap: 3px; 
  cursor: pointer; 
  padding: 6px 12px;
  -webkit-user-select: none; 
  user-select: none;
}
.tab-item:active { opacity: .5; }

.tab-icon { 
  height: 26px; 
  display: flex; 
  align-items: center; 
  justify-content: center;
}
.tab-icon svg { 
  width: 22px; 
  height: 22px; 
  stroke: #8e8e93; 
  stroke-width: 1.5; 
  fill: none; 
  stroke-linecap: round; 
  stroke-linejoin: round; 
  transition: stroke .15s ease; 
}

.tab-label { 
  font-size: 10px; 
  font-weight: 500; 
  color: #8e8e93; 
  transition: color .15s ease; 
}

.tab-item.active .tab-icon svg { stroke: #1c1c1e; }
.tab-item.active .tab-label { color: #1c1c1e; }