body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.8;
            color: #333;
            background-color: #f9f9f9;
            margin: 0;
            padding: 0;
        }
        .container {
            max-width: 800px;
            margin: 40px auto;
            padding: 20px;
            background-color: #fff;
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.08);
        }
        h1, h2, h3 {
            color: #2c3e50;
            border-bottom: 2px solid #f0f0f0;
            padding-bottom: 10px;
        }
        h1 { font-size: 28px; }
        h2 { font-size: 24px; }
        ul {
            list-style-type: disc;
            padding-left: 20px;
        }
        li { margin-bottom: 10px; }
        strong { color: #6045FF; }
        .cta-button {
            display: inline-block;
            background-color: #816BFF;
            color: #fff;
            padding: 12px 25px;
            border-radius: 5px;
            text-decoration: none;
            font-weight: bold;
            margin-top: 20px;
            transition: background-color 0.3s;
            cursor: pointer;
        }
        .cta-button:hover {
            background-color: #6045FF;
        }
        .footer {
            text-align: center;
            margin-top: 40px;
            color: #999;
            font-size: 14px;
        }

        .back-to-home {
            position: fixed;
            top: 20px;
            right: 20px;
            z-index: 1000;
            padding: 8px 15px;
            background-color: #6045FF;
            color: #fff;
            text-decoration: none;
            border-radius: 5px;
            font-size: 14px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.15);
            transition: background-color 0.3s;
        }
        .back-to-home:hover {
            background-color: #816BFF;
        }

        /* --- [新增] 悬浮微信客服样式 --- */
        .floating-wechat {
            position: fixed;
            right: 20px;
            top: 220px; /* 您可以根据喜好调整垂直位置 */
            z-index: 1000;
            cursor: pointer;
        }

        .floating-wechat .icon-wrapper {
            width: 50px;
            height: 50px;
            background-color: #e4deff;
            border-radius: 20px;
            display: flex;
            justify-content: center;
            align-items: center;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            transition: transform 0.2s ease-in-out;
/*            color: #07c160; */
        }
        
        .floating-wechat .icon-weixin {
            font-size: 32px;
        }

        .floating-wechat .qr-code-popup {
            position: absolute;
            bottom: 0;
            right: 65px; /* 定位在图标左侧 */
            padding: 15px;
            background-color: #fff;
            border-radius: 8px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
            text-align: center;
            
            /* 初始状态为隐藏 */
            opacity: 0;
            visibility: hidden;
            transform: scale(0.8);
            transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
            transform-origin: bottom right;
        }
        
        /* 鼠标悬停时触发的效果 */
        .floating-wechat:hover .qr-code-popup {
            opacity: 1;
            visibility: visible;
            transform: scale(1);
        }
        
        .floating-wechat:hover .icon-wrapper {
            transform: scale(1.1);
        }

        .floating-wechat .qr-code-popup img {
            width: 140px;
            height: 140px;
            display: block;
        }

        .floating-wechat .qr-code-popup p {
            margin: 10px 0 0 0;
            font-size: 14px;
            color: #333;
        }