* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        /* 右下角浮动按钮容器 */
        .float-service {
            position: fixed;
            right: 20px;
            top: 5px;
            z-index: 999;
        }
        @keyframes breathe {
            0% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.2);
            }
            100% {
                transform: scale(1);
            }
            }
        /* 悬浮按钮 */
        .float-btn {
               width: 100px;
                height: 40px;
                border-radius: 10px;
                background: #07C160;
                color: #fff;
                border: none;
                font-size: 20px;
                cursor: pointer;
                box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
                display: flex;
                align-items: center;
                justify-content: center;
                animation: breathe 3s infinite ease-in-out;
        }
        .float-btn:hover {
            transform: scale(1.05);
        }

        /* 微信弹窗 */
        .wx-popup {
            position: absolute;
            right: 0;
            bottom: -245px;
            width: 190px;
            background: #fff;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.18);
            padding: 16px;
            text-align: center;
            display: none;
        }
        .wx-popup.show {
            display: block;
        }
        .wx-popup img {
            width: 160px;
            height: 160px;
            object-fit: cover;
            margin-bottom: 8px;
        }
        .wx-popup p {
            font-size: 14px;
            color: #333;
        }
        /* 点击空白关闭遮罩 */
        .mask {
            position: fixed;
            inset: 0;
            z-index: 998;
            display: none;
        }
        .mask.show {
            display: block;
        }