/* ================================================
   TabBar — Apple 简约风底部导航（镂空图标）
   ================================================ */

.tab-bar {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    height: 52px;
    background: rgba(255,255,255,0.8);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    display: flex;
    align-items: center;
    justify-content: space-around;
    z-index: 350;
    padding-bottom: env(safe-area-inset-bottom);
    border-top: 0.5px solid rgba(0,0,0,0.06);
}

.tab-bar-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    color: #8e8e93;
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 0.01em;
    cursor: pointer;
    padding: 4px 14px;
    transition: color 0.2s cubic-bezier(0.25, 0.1, 0.25, 1);
    -webkit-tap-highlight-color: transparent;
    position: relative;
}

.tab-bar-item svg {
    width: 24px; height: 24px;
    transition: stroke-width 0.2s ease, color 0.2s ease;
}

.tab-bar-item.active {
    color: #0071e3;
}

.tab-bar-item.active svg {
    stroke-width: 2;
}

.tab-bar-item:active {
    opacity: 0.5;
}

/* 隐藏订单和发现 */
.tab-bar-item[data-tab="orders"],
.tab-bar-item[data-tab="discover"] {
    display: none;
}