/* 悬浮图标样式 */
        .floating-icon {
            position: fixed;
            top: 20px;
            left: 20px;
            width: 40px;
            height: 40px;
            background-color: #5c9bfe;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            z-index: 1000;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
        }
        .floating-icon img {
            width: 34px;
            height: 34px;
        }