/* 通用导航栏样式 - 确保在所有页面都能正确固定显示 */

.tab-bar {
    position: fixed !important;
    bottom: 0 !important;
    left: 0 !important;
    right: 0 !important;
    height: 83px;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid #e5e5e7;
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding-bottom: calc(20px + env(safe-area-inset-bottom));
    z-index: 10000;
    width: 100%;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

.tab-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    transition: all 0.2s ease;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 12px;
    letter-spacing: 0.3px;
}

.tab-item:hover:not(.active) {
    background: rgba(0, 0, 0, 0.05);
}

.tab-item:active {
    transform: scale(0.95);
}

.tab-item.active {
    color: #181818;
    font-weight: 600;
    text-shadow: 0 0.5px 1px rgba(0, 0, 0, 0.1);
}

.tab-item:not(.active) {
    color: #666666;
    font-weight: 500;
}

/* 确保导航栏在所有情况下都显示在最上层 */
.tab-bar * {
    position: relative;
    z-index: 10001;
}

/* 为有导航栏的页面添加底部内边距，避免内容被导航栏遮挡 */
body.has-tab-bar {
    padding-bottom: 100px;
}

/* 响应式设计 - 确保在不同屏幕尺寸下都能正确显示 */
@media (max-width: 480px) {
    .tab-bar {
        height: 75px;
        padding-bottom: calc(15px + env(safe-area-inset-bottom));
    }
    
    .tab-item {
        font-size: 11px;
        padding: 6px;
    }
    
    body.has-tab-bar {
        padding-bottom: 90px;
    }
}

/* 确保导航栏在iOS Safari中正确显示 */
@supports (-webkit-touch-callout: none) {
    .tab-bar {
        -webkit-transform: translateZ(0);
        transform: translateZ(0);
    }
}

/* 防止导航栏在某些情况下被隐藏 */
.tab-bar {
    visibility: visible !important;
    opacity: 1 !important;
    display: flex !important;
}