/* 底部导航栏 */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(10, 14, 39, 0.95);
    border-top: 1px solid rgba(124, 58, 237, 0.3);
    box-shadow: 0 -4px 15px rgba(124, 58, 237, 0.2);
    display: flex;
    justify-content: space-around;
    padding: 8px 0;
    z-index: 1000;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    color: #6b7280;
    text-decoration: none;
    font-size: 0.875rem;
}

    .nav-item i {
        font-size: 1.25rem;
    }

    .nav-item.active {
        color: #a855f7;
        text-shadow: 0 0 16px rgba(168, 85, 247, 0.6);
    }