/* 全局样式 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        :root {
            --primary-color: #f7931a;
            --secondary-color: #d68419;
            --text-color: #333;
            --text-light: #777;
            --bg-color: #f9f9f9;
            --white: #fff;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        
        body {
            font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: var(--bg-color);
            padding-top: 80px;
        }
        
        /* 容器 */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 头部导航 */
        header {
            background-color: var(--white);
            box-shadow: var(--shadow);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            transition: var(--transition);
        }
        
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
        }
        
        .logo {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary-color);
            text-decoration: none;
            display: flex;
            align-items: center;
        }
        
        .logo i {
            margin-right: 10px;
            font-size: 32px;
        }
        
        nav ul {
            display: flex;
            list-style: none;
        }
        
        nav ul li {
            margin-left: 30px;
        }
        
        nav ul li a {
            text-decoration: none;
            color: var(--text-color);
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }
        
        nav ul li a:hover {
            color: var(--primary-color);
        }
        
        nav ul li a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary-color);
            transition: var(--transition);
        }
        
        nav ul li a:hover::after {
            width: 100%;
        }
        
        .download-btn {
            background-color: var(--primary-color);
            color: var(--white);
            padding: 10px 25px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
            box-shadow: 0 4px 15px rgba(247, 147, 26, 0.3);
        }
        
        .download-btn:hover {
            background-color: var(--secondary-color);
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(247, 147, 26, 0.4);
        }
        
        /* 移动端菜单按钮 */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--text-color);
        }

        /* 页面标题区域 */
        .page-title {
            background: linear-gradient(135deg, #f7931a 0%, #d68419 100%);
            padding: 60px 0;
            color: var(--white);
            text-align: center;
            margin-bottom: 60px;
        }
        
        .page-title h1 {
            font-size: 40px;
            margin-bottom: 15px;
        }
        
        .page-title p {
            font-size: 18px;
            opacity: 0.9;
        }

        /* FAQ 详情区域 */
        .faq-detail-container {
            display: grid;
            grid-template-columns: 1fr 3fr;
            gap: 40px;
            margin-bottom: 80px;
        }

        /* 左侧目录 */
        .faq-categories {
            background-color: var(--white);
            border-radius: 15px;
            box-shadow: var(--shadow);
            padding: 30px;
            position: sticky;
            top: 100px;
            height: fit-content;
        }
        
        .faq-categories h2 {
            font-size: 20px;
            margin-bottom: 20px;
            color: var(--primary-color);
            padding-bottom: 15px;
            border-bottom: 2px solid #f0f0f0;
        }
        
        .faq-categories ul {
            list-style: none;
        }
        
        .faq-categories ul li {
            margin-bottom: 15px;
        }
        
        .faq-categories ul li a {
            text-decoration: none;
            color: var(--text-color);
            transition: var(--transition);
            display: block;
            padding: 10px 15px;
            border-radius: 8px;
        }
        
        .faq-categories ul li a:hover {
            background-color: #f5f5f5;
            color: var(--primary-color);
        }
        
        .faq-categories ul li a.active {
            background-color: rgba(247, 147, 26, 0.1);
            color: var(--primary-color);
            font-weight: 600;
        }

        /* 右侧FAQ内容 */
        .faq-content {
            background-color: var(--white);
            border-radius: 15px;
            box-shadow: var(--shadow);
            padding: 40px;
        }
        
        .faq-section {
            margin-bottom: 50px;
        }
        
        .faq-section:last-child {
            margin-bottom: 0;
        }
        
        .faq-section h2 {
            font-size: 28px;
            margin-bottom: 30px;
            color: var(--primary-color);
            padding-bottom: 15px;
            border-bottom: 2px solid #f0f0f0;
        }
        
        .faq-group {
            margin-bottom: 25px;
        }
        
        .faq-question {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 15px;
            color: var(--text-color);
            display: flex;
            align-items: center;
        }
        
        .faq-question i {
            color: var(--primary-color);
            margin-right: 12px;
            font-size: 16px;
        }
        
        .faq-answer {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-light);
            padding-left: 28px;
            margin-bottom: 20px;
        }
        
        .faq-answer p {
            margin-bottom: 15px;
        }
        
        .faq-answer p:last-child {
            margin-bottom: 0;
        }
        
        .faq-answer ul {
            margin-left: 20px;
            margin-bottom: 15px;
        }
        
        .faq-answer ul li {
            margin-bottom: 8px;
        }
        
        .faq-answer ul li:last-child {
            margin-bottom: 0;
        }

        /* 底部联系支持区域 */
        .support-section {
            background-color: var(--bg-color);
            border-radius: 15px;
            padding: 30px;
            text-align: center;
            margin-top: 40px;
        }
        
        .support-section h3 {
            font-size: 20px;
            margin-bottom: 15px;
            color: var(--primary-color);
        }
        
        .support-section p {
            margin-bottom: 20px;
            color: var(--text-light);
        }
        
        .support-btn {
            display: inline-block;
            background-color: var(--primary-color);
            color: var(--white);
            padding: 12px 30px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
            box-shadow: 0 4px 15px rgba(247, 147, 26, 0.3);
        }
        
        .support-btn:hover {
            background-color: var(--secondary-color);
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(247, 147, 26, 0.4);
        }

        /* 页脚 */
        footer {
            background-color: #2c3e50;
            color: var(--white);
            padding: 50px 0 20px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-bottom: 50px;
        }
        
        .footer-column h3 {
            font-size: 18px;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-column h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 2px;
            background-color: var(--primary-color);
        }
        
        .footer-column ul {
            list-style: none;
        }
        
        .footer-column ul li {
            margin-bottom: 10px;
        }
        
        .footer-column ul li a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: var(--transition);
        }
        
        .footer-column ul li a:hover {
            color: var(--white);
            padding-left: 5px;
        }
        
        .social-links {
            display: flex;
            gap: 15px;
        }
        
        .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.1);
            color: var(--white);
            transition: var(--transition);
        }
        
        .social-links a:hover {
            background-color: var(--primary-color);
            transform: translateY(-3px);
        }
        
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
        }

        /* 响应式设计 */
        @media (max-width: 992px) {
            .faq-detail-container {
                grid-template-columns: 1fr;
            }
            
            .faq-categories {
                position: relative;
                top: 0;
                margin-bottom: 30px;
            }
            
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 768px) {
            .mobile-menu-btn {
                display: block;
            }
            
            nav {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                background-color: var(--white);
                padding: 20px 0;
                box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
                transition: var(--transition);
            }
            
            nav.active {
                left: 0;
            }
            
            nav ul {
                flex-direction: column;
                align-items: center;
            }
            
            nav ul li {
                margin: 15px 0;
            }
            
            .page-title h1 {
                font-size: 32px;
            }
            
            .faq-content {
                padding: 30px 20px;
            }
            
            .footer-content {
                grid-template-columns: 1fr;
            }
        }
		
		
		 @media print {
            body {
                font-family: "SimSun", serif;
                line-height: 1.6;
                color: #333;
            }
            .article-list {
                width: 100%;
                margin: 0;
                padding: 0;
            }
            .article-item {
                page-break-inside: avoid;
                margin-bottom: 20px;
                padding-bottom: 15px;
                border-bottom: 1px solid #eee;
            }
            .article-title {
                font-size: 18px;
                font-weight: bold;
                margin-bottom: 8px;
                color: #222;
            }
            .article-meta {
                font-size: 14px;
                color: #666;
                margin-bottom: 10px;
            }
            .article-content {
                font-size: 15px;
            }
            .contact-btn {
                display: none;
            }
        }
        
        @media screen {
            body {
                font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
                background-color: #f9f9f9;
                padding: 20px;
            }
            .article-list {
                max-width: 800px;
                margin: 0 auto;
                background: white;
                padding: 30px;
                border-radius: 8px;
                box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            }
            .article-item {
                margin-bottom: 25px;
                padding-bottom: 20px;
                border-bottom: 1px solid #eee;
            }
            .article-title {
                font-size: 20px;
                font-weight: 600;
                margin-bottom: 10px;
                color: #2c3e50;
            }
            .article-meta {
                font-size: 14px;
                color: #7f8c8d;
                margin-bottom: 12px;
            }
            .article-content {
                font-size: 16px;
                line-height: 1.7;
                color: #34495e;
            }
            .contact-btn {
                display: inline-block;
                margin-top: 15px;
                padding: 8px 16px;
                background-color: #3498db;
                color: white;
                text-decoration: none;
                border-radius: 4px;
                transition: background-color 0.3s;
            }
            .contact-btn:hover {
                background-color: #2980b9;
            }
        }