/* 客服中心样式 */
        .customer-service {
            position: fixed;
            right: 5px;
            top: 12.3%;
            transform: translateY(-50%);
            z-index: 1000;
            display: flex;
            align-items: center;
        }

        /* 展开的内容面板 */
        .service-panel {
            background: #fff;
            border-radius: 15px;
            box-shadow: -5px 0 20px rgba(0,0,0,0.15);
            padding: 20px;
            width: 180px;
            min-height: 400px;
            transform: translateX(calc(100% + 10px));
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            margin-right: 10px;
        }

        .customer-service.expanded .service-panel {
            transform: translateX(0);
            opacity: 1;
            visibility: visible;
        }

        /* 切换按钮 */
        .service-toggle {
            width: 60px;
            height: 120px;
            background: #1e3a8a;
            border: none;
            border-radius: 15px;
            color: white;
            font-size: 18px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
            box-shadow: -3px 0 15px rgba(0,0,0,0.2);
            flex-shrink: 0;
        }

        .service-toggle:hover {
            background: #1e40af;
            transform: scale(1.05);
        }

        .service-toggle .toggle-text {
            font-size: 15px;
            writing-mode: vertical-lr;
            text-orientation: mixed;
        }

        .service-title {
            color: #1e3a8a;
            font-size: 16px;
            font-weight: bold;
            margin-bottom: 20px;
            text-align: center;
            border-bottom: 2px solid #e5e7eb;
            padding-bottom: 10px;
        }

        .qr-section {
            margin-bottom: 25px;
        }

        .qr-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            margin-bottom: 15px;
        }

        .qr-code {
            width: 120px;
            height: 120px;
            border-radius: 8px;
            margin-bottom: 8px;
            transition: all 0.3s ease;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }

        .qr-code img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        .qr-code:hover {
            transform: scale(1.05);
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
        }

        .qr-label {
            font-size: 12px;
            color: #4b5563;
            text-align: center;
        }

        .qq-section {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .qq-button {
            display: block;
            padding: 12px 15px;
            background: #1e3a8a;
            color: white;
            text-decoration: none;
            border-radius: 6px;
            text-align: center;
            font-size: 14px;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .qq-button::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
            transition: left 0.5s;
        }

        .qq-button:hover {
            background: #1e40af;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(30, 58, 138, 0.3);
        }

        .qq-button:hover::before {
            left: 100%;
        }

        .qq-button:active {
            transform: translateY(0);
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .service-panel {
                width: 160px;
                padding: 15px;
            }
            
            .qr-code {
                width: 100px;
                height: 100px;
            }
        }

        /* 动画效果 */
        @keyframes bounce {
            0%, 20%, 50%, 80%, 100% {
                transform: scale(1);
            }
            40% {
                transform: scale(1.1);
            }
            60% {
                transform: scale(1.05);
            }
        }

        .service-toggle.bounce {
            animation: bounce 2s infinite;
        }