/* 客服按钮样式 */
        .chat-button {
            position: fixed;
            bottom: 255px;
            right: 25px;
            width: 100px;
            height: 100px;
            background: #0086f0;
            color: white;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
            z-index: 1000;
            transition: all 0.3s ease;
            animation: pulse 2s infinite;
        }
        
        .chat-button:hover {
            transform: scale(1.1);
            background: #ff4200;
        }
        
        .chat-button i {
            font-size: 54px;
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .chat-button {
                bottom: 120px;
                right: 20px;
                width: 55px;
                height: 55px;
            }
            
            h1 {
                font-size: 1.8rem;
            }
            
            .content {
                padding: 20px;
            }
        }
        
        /* 动画效果 */
        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(52, 152, 219, 0.7);
            }
            70% {
                box-shadow: 0 0 0 10px rgba(52, 152, 219, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(52, 152, 219, 0);
            }
        }
        
        /* 提示文本 */
        .hint {
            position: fixed;
            bottom: 200px;
            right: 25px;
            background: rgba(0, 0, 0, 0.8);
            color: white;
            padding: 8px 12px;
            border-radius: 4px;
            font-size: 0.9rem;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        
        .chat-button:hover + .hint {
            opacity: 1;
        }