/* 可折叠FAQ样式 */
            .faq-item {
                border: 1px solid #eee;
                border-radius: 8px;
                margin-bottom: 10px;
                overflow: hidden;
                background: #fff;
                box-shadow: 0 1px 3px rgba(0,0,0,0.05);
            }
            .faq-question {
                padding: 15px 20px;
                cursor: pointer;
                display: flex;
                justify-content: space-between;
                align-items: center;
                font-weight: 600;
                color: #222;
                transition: background 0.2s ease;
            }
            .faq-question:hover {
                background: #f8f9fa;
            }
            .faq-question:after {
                content: "+";
                font-size: 18px;
                color: #2196F3;
                transition: transform 0.2s ease;
            }
            .faq-question.active:after {
                content: "-";
                transform: rotate(180deg);
            }
            .faq-answer {
                padding: 0 20px;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.3s ease, padding 0.3s ease;
                color: #666;
                line-height: 1.6;
            }
            .faq-answer.show {
                padding: 0 20px 20px;
                max-height: 500px;
            }