.online-float-bar {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 999999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.online-item {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 12px 8px;
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
    cursor: pointer;
    transition: all 0.3s ease;
    width: 60px;
}

.online-item:hover {
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.25);
    transform: translateX(-5px);
}

.online-item.active {
    background: #f5f5f5;
}

.online-icon {
    font-size: 24px;
    line-height: 24px;;
}

.online-item.online-wechat .online-icon {
    color: #07c160;
}

.online-item.online-whatsapp .online-icon {
    color: #25d366;
}

.online-item.online-phone .online-icon {
    color: #007bff;
}

.online-item.online-email .online-icon {
    color: #6c757d;
}

.online-label {
    font-size: 11px;
    color: #333;
    font-weight: 500;
    white-space: nowrap;
}

.online-qrcode,
.online-info {
    display: none;
    position: absolute;
    right: 70px;
    top: 50%;
    transform: translateY(-50%);
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    padding: 15px;
    z-index: 100;
    min-width: 180px;
}

.online-qrcode img {
    width: 150px;
    height: 150px;
    display: block;
    border: 1px solid #eee;
    border-radius: 4px;
}

.online-info {
    text-align: center;
}

.online-info a {
    display: block;
    color: #333;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    word-break: break-all;
}

.online-info a:hover {
    color: #007bff;
    text-decoration: underline;
}

.online-qrcode::after,
.online-info::after {
    content: '';
    position: absolute;
    right: -8px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
    border-left: 8px solid #ffffff;
}

@media only screen and (max-width: 768px) {
    .online-float-bar {
        right: 10px;
        gap: 8px;
    }

    .online-item {
        width: 50px;
        padding: 10px 6px;
    }

    .online-icon {
        font-size: 20px;
    }

    .online-label {
        font-size: 10px;
    }

    .online-qrcode,
    .online-info {
        right: 60px;
        min-width: 150px;
    }

    .online-qrcode img {
        width: 120px;
        height: 120px;
    }
}