.chat-box {
            width: 310px;
            border-radius: 10px;
            border: 1px solid #e3e3e3;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            overflow: hidden;
            background-color: #fff;
            position: fixed;
            bottom: 75px;
            left: 20px;
            display: none;
            z-index: 154;
        }
        .fb-zalo-online-badge {
            position: absolute;
            top: 8px;
            right: 0;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: #35ac19;
            z-index: 155;
        }
        .chat-header {
            background-color: var(--fs-color-primary);
            padding: 10px;
            display: flex;
            align-items: center;
        }
        .chat-header .title {
            color: #fff;
            font-weight: 500;
            margin: 0 auto;
        }
        .chat-body {
            padding: 15px;
            background-color: #f9f9f9;
        }
        .chat-body .chat-button {
            display: flex;
            align-items: center;
            text-decoration: none;
            color: #0084ff;
            margin-bottom: 10px;
        }

        .chat-body .chat-button:last-child {
            margin-bottom: 0;
        }
        .chat-body a {
            background-color: #ffffff;
            border-radius: 100px;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        }
        .fb-zalo-nbt {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: #ffffff;
            padding: 5px;
            margin-right: 10px;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .chat-body .chat-button .text {
            font-size: 14px;
        }
        .chat-call-gmail-btn {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background-color: var(--fs-color-primary);
            position: fixed;
            bottom: 20px;
            left: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
            cursor: pointer;
            z-index: 154;
        }
        .chat-call-gmail-btn svg {
            width: 30px;
            height: 30px;
        }