/* 底部导航栏样式 - 加高版，图标加大，高度85px */
.bn-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: white;
    display: flex;
    justify-content: space-around;
    align-items: flex-start;
    padding: 0 0 calc(0px + constant(safe-area-inset-bottom));
    padding: 0 0 calc(0px + env(safe-area-inset-bottom));
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    z-index: 100;
    height: 85px;           /* 高度调整为85px */
    min-height: 85px;
}

.bn-bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    flex: 1;
    padding-top: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    color: #666;
    -webkit-tap-highlight-color: transparent;
    min-height: 44px;
}

/* 激活状态：主色 + 文字加粗 */
.bn-bottom-nav-item.active {
    color: #0a845e;
}

.bn-bottom-nav-item.active .bn-bottom-nav-text {
    font-weight: 600;
}

/* 图标容器：尺寸28px */
.bn-bottom-nav-icon {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2px;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.bn-bottom-nav-icon img {
    width: 28px;
    height: 28px;
    object-fit: contain;
}

/* 文字大小保持不变 */
.bn-bottom-nav-text {
    font-size: 11px;
    font-weight: 500;
    line-height: 1.2;
}

/* 响应式微调 */
@media (max-width: 480px) {
    .bn-bottom-nav-text {
        font-size: 10px;
    }
    .bn-bottom-nav-icon {
        width: 26px;
        height: 26px;
    }
    .bn-bottom-nav-icon img {
        width: 26px;
        height: 26px;
    }
    .bn-bottom-nav-item {
        padding-top: 8px;
    }
}

/* 全面屏设备额外安全区适配 */
@supports (padding-bottom: max(0px)) {
    .bn-bottom-nav {
        padding-bottom: max(0px, env(safe-area-inset-bottom));
    }
}