/* 主要内容区域 */
        .main-content {
            padding: 20px 0 60px;
        }

        /* 常见问题部分 */
        .faq-section {
            margin-bottom: 50px;
        }

        .section-title {
            font-size: 1.8rem;
            margin-bottom: 30px;
            padding-bottom: 15px;
            border-bottom: 1px solid var(--border-color);
            color: var(--text-color);
        }

        .faq-category {
            margin-bottom: 40px;
        }

        .category-title {
            font-size: 1.4rem;
            margin-bottom: 20px;
            color: var(--primary-color);
            display: flex;
            align-items: center;
        }

        .category-title::before {
            content: "•";
            margin-right: 10px;
            font-size: 1.8rem;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .faq-item {
            background-color: white;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: box-shadow 0.3s;
        }

        .faq-item:hover {
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
        }

        .faq-question {
            padding: 20px;
            font-weight: 600;
            font-size: 1.1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

        .faq-question::after {
            content: "+";
            font-size: 1.5rem;
            color: var(--primary-color);
            transition: transform 0.3s;
        }

        .faq-item.active .faq-question::after {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            color: var(--text-light);
        }

        .faq-item.active .faq-answer {
            padding: 0 20px 20px;
            max-height: 500px;
        }

        /* 联系支持部分 */
        .support-section {
            background-color: var(--background-light);
            padding: 40px;
            border-radius: var(--radius);
            text-align: center;
        }

        .support-title {
            font-size: 1.5rem;
            margin-bottom: 20px;
        }

        .support-description {
            color: var(--text-light);
            margin-bottom: 25px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .contact-btn {
            display: inline-block;
            background-color: var(--primary-color);
            color: white;
            padding: 12px 30px;
            border-radius: var(--radius);
            text-decoration: none;
            font-weight: 600;
            transition: background-color 0.3s;
        }

        .contact-btn:hover {
            background-color: var(--primary-dark);
        }