/* 底部导航样式 */
    .bottom-nav {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        background: linear-gradient(to top, #ffffff 0%, #fefefe 100%);
        border-top: 1px solid rgba(0, 0, 0, 0.06);
        display: flex;
        justify-content: space-around;
        padding: 6px 0 calc(6px + env(safe-area-inset-bottom));
        z-index: 100;
        box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.04),
                    0 -2px 8px rgba(0, 0, 0, 0.02);
        backdrop-filter: blur(10px);
        transform: translateZ(0);
        -webkit-transform: translateZ(0);
    }

    .nav-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 2px;
        cursor: pointer;
        flex: 1;
        color: #95a5a6;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        padding: 4px 0;
        position: relative;
        border-radius: 12px;
        margin: 0 4px;
    }

    /* 移除底部导航选中后上方的粉色边框 */
    .nav-item::before {
        content: '';
        position: absolute;
        top: -6px;
        left: 50%;
        transform: translateX(-50%) scale(0);
        width: 32px;
        height: 3px;
        background: linear-gradient(90deg, #ff6b9d 0%, #ff8fb3 100%);
        border-radius: 0 0 4px 4px;
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: 0 2px 8px rgba(255, 107, 157, 0.35);
        display: none; /* 隐藏上方粉色边框 */
    }

    .nav-item::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(135deg, rgba(255, 107, 157, 0.08) 0%, rgba(255, 143, 179, 0.05) 100%);
        border-radius: 12px;
        opacity: 0;
        transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .nav-item.active {
        color: #ff6b9d;
        transform: translateY(-2px);
    }

    /* 移除激活状态下的粉色边框显示 */
    .nav-item.active::before {
        transform: translateX(-50%) scale(0); /* 保持隐藏状态 */
    }

    .nav-item:active {
        transform: translateY(0) scale(0.96);
    }

    .nav-item svg {
        width: 24px;
        height: 24px;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        position: relative;
        z-index: 1;
        filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0));
    }

    .nav-item.active svg {
        transform: scale(1.1);
        filter: drop-shadow(0 2px 4px rgba(255, 107, 157, 0.25));
    }

    .nav-item span {
        font-size: 10px;
        font-weight: 500;
        position: relative;
        z-index: 1;
        letter-spacing: 0.3px;
    }

    .nav-item.active span {
        font-weight: 600;
        letter-spacing: 0.4px;
    }

    @media (min-width: 769px) {
        .bottom-nav {
/*            display: none;*/
        }
    }
    
    .fabu {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, #ff6b9d 0%, #ffa8c5 100%);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            position: absolute;
            top: -20px;
            left: 50%;
            transform: translateX(-50%);
            box-shadow: 0 4px 16px rgba(255, 107, 157, 0.4);
            border: 4px solid white;
            z-index: 2;
       }