body {
    margin: 0;
    padding-bottom: 80px; /* 调整为按钮高度 + 间距 */
    font-family: Arial, sans-serif;
}

.call-button-container {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: #fff;
    box-shadow: 0 -1px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000; /* 确保按钮在顶部 */
    display: none; /* 默认隐藏 */
    justify-content: center;
    align-items: center;
    padding: 10px 0;
}

/* 只在屏幕宽度小于768px的设备上显示按钮 */
@media screen and (max-width: 768px) {
    .call-button-container {
        display: flex; /* 移动设备上显示按钮 */
    }
}

.call-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: 600px;
    text-decoration: none;
    color: #ffffff !important; /* 强制字体颜色为白色 */
    background-color: #007bff !important; /* 强制行动呼叫按钮为蓝色 */
    font-size: 18px;
    font-weight: bold;
    padding: 15px 0;
    border-radius: 30px;
    transition: background-color 0.3s ease;
}

.call-button:hover {
    background-color: #0056b3 !important; /* 鼠标悬停时稍微深一点的蓝色 */
}

.call-icon {
    background: url('https://www.b2b18.com/ggtpcf/phone.png') no-repeat center center;
    width: 24px;
    height: 24px;
    margin-right: 8px;
    display: inline-block;
}