:root {
            --primary: #E60012;
            --primary-dark: #A8000D;
            --primary-light: #FFEBEC;
            --accent: #FFD700;
            --dark: #1A1A1A;
            --gray: #666666;
            --light-gray: #F8F9FA;
            --border: #E5E5E5;
            --max-width: 1200px;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }

        body {
            background-color: #FFFFFF;
            color: var(--dark);
            line-height: 1.6;
            font-size: 16px;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 顶部导航 */
        header {
            background: #FFFFFF;
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }

        .nav-logo-box {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 20px;
            align-items: center;
        }

        .nav-menu a:hover {
            color: var(--primary);
        }

        .nav-btn {
            background: var(--primary);
            color: #FFF !important;
            padding: 8px 18px;
            border-radius: 4px;
            font-weight: bold;
        }

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

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
        }

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background: var(--dark);
            transition: 0.3s;
        }

        /* Hero 首屏 (艳红热烈风，禁止出现图片) */
        .hero {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, #FF3B30 100%);
            color: #FFFFFF;
            padding: 100px 0 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle, rgba(255,215,0,0.15) 10%, transparent 10.01%);
            background-size: 20px 20px;
            opacity: 0.6;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
        }

        .hero h1 {
            font-size: 2.5rem;
            margin-bottom: 20px;
            color: #FFFFFF;
            line-height: 1.3;
            text-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }

        .hero p {
            font-size: 1.25rem;
            margin-bottom: 35px;
            color: rgba(255,255,255,0.9);
        }

        .hero-btn-group {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-block;
            padding: 14px 30px;
            border-radius: 30px;
            font-weight: bold;
            text-align: center;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .btn-accent {
            background: var(--accent);
            color: var(--dark);
            box-shadow: 0 4px 15px rgba(255, 215, 0, 0.4);
        }

        .btn-accent:hover {
            background: #FFF;
            transform: translateY(-2px);
        }

        .btn-outline {
            border: 2px solid #FFFFFF;
            color: #FFFFFF;
        }

        .btn-outline:hover {
            background: rgba(255,255,255,0.1);
            transform: translateY(-2px);
        }

        /* 核心卖点数据指标 */
        .stats-section {
            background: #FFFFFF;
            padding: 40px 0;
            border-bottom: 1px solid var(--border);
            margin-top: -30px;
            position: relative;
            z-index: 3;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            background: #FFFFFF;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
        }

        .stat-card {
            text-align: center;
            border-right: 1px solid var(--border);
        }

        .stat-card:last-child {
            border-right: none;
        }

        .stat-num {
            font-size: 2.2rem;
            font-weight: bold;
            color: var(--primary);
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 0.95rem;
            color: var(--gray);
        }

        /* 关于我们与技术标准 */
        .section {
            padding: 80px 0;
        }

        .section-light {
            background-color: var(--light-gray);
        }

        .section-title-wrapper {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-title {
            font-size: 2rem;
            color: var(--dark);
            position: relative;
            display: inline-block;
            padding-bottom: 15px;
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: var(--primary);
            border-radius: 2px;
        }

        .section-desc {
            margin-top: 15px;
            color: var(--gray);
            font-size: 1.1rem;
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 1.5rem;
            margin-bottom: 20px;
            color: var(--primary-dark);
        }

        .about-text p {
            margin-bottom: 15px;
            color: var(--gray);
        }

        .tech-list {
            margin-top: 25px;
        }

        .tech-item {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }

        .tech-icon {
            width: 8px;
            height: 8px;
            background: var(--primary);
            border-radius: 50%;
        }

        /* 服务体系 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background: #FFFFFF;
            padding: 30px;
            border-radius: 8px;
            border-top: 4px solid var(--primary);
            box-shadow: 0 5px 20px rgba(0,0,0,0.05);
            transition: all 0.3s;
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(230,0,18,0.1);
        }

        .service-card h3 {
            font-size: 1.3rem;
            margin-bottom: 15px;
            color: var(--dark);
        }

        .service-card p {
            color: var(--gray);
            font-size: 0.95rem;
        }

        /* 平台聚合支撑滚动 */
        .platform-box {
            margin-top: 50px;
            background: #FFFFFF;
            padding: 30px;
            border-radius: 8px;
            border: 1px solid var(--border);
        }

        .platform-title {
            text-align: center;
            font-weight: bold;
            margin-bottom: 20px;
            color: var(--primary-dark);
        }

        .platform-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .tag {
            background: var(--light-gray);
            border: 1px solid var(--border);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--dark);
            transition: all 0.3s;
        }

        .tag:hover {
            background: var(--primary-light);
            color: var(--primary);
            border-color: var(--primary);
        }

        /* 制作流程 & 标准服务 */
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            position: relative;
        }

        .flow-card {
            background: #FFFFFF;
            padding: 25px 20px;
            border-radius: 8px;
            text-align: center;
            border: 1px solid var(--border);
            position: relative;
        }

        .flow-step {
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #FFFFFF;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            margin: 0 auto 15px auto;
        }

        .flow-card h4 {
            margin-bottom: 10px;
            color: var(--dark);
        }

        .flow-card p {
            font-size: 0.85rem;
            color: var(--gray);
        }

        /* 对比评测 */
        .rating-box {
            background: var(--primary-light);
            padding: 20px;
            border-radius: 8px;
            margin-bottom: 30px;
            display: flex;
            align-items: center;
            justify-content: space-around;
            flex-wrap: wrap;
            border: 1px dashed var(--primary);
        }

        .rating-item {
            text-align: center;
            padding: 10px;
        }

        .rating-title {
            color: var(--gray);
            font-size: 0.95rem;
        }

        .rating-value {
            font-size: 2rem;
            font-weight: bold;
            color: var(--primary);
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border-radius: 8px;
            border: 1px solid var(--border);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            background: #FFFFFF;
        }

        .compare-table th, .compare-table td {
            padding: 15px 20px;
            border-bottom: 1px solid var(--border);
            font-size: 0.95rem;
        }

        .compare-table th {
            background: var(--light-gray);
            font-weight: bold;
            color: var(--dark);
        }

        .compare-table tr:last-child td {
            border-bottom: none;
        }

        .highlight-td {
            background: rgba(230,0,18,0.02);
            font-weight: bold;
            color: var(--primary-dark);
        }

        /* Token 比价 */
        .token-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .token-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 25px;
            text-align: center;
            transition: all 0.3s;
        }

        .token-card.best {
            border: 2px solid var(--primary);
            transform: scale(1.03);
            box-shadow: 0 8px 25px rgba(230,0,18,0.1);
            position: relative;
        }

        .token-card.best::before {
            content: '最佳推荐';
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--primary);
            color: #FFFFFF;
            font-size: 0.75rem;
            padding: 3px 12px;
            border-radius: 10px;
            font-weight: bold;
        }

        .token-card h3 {
            margin-bottom: 15px;
            color: var(--dark);
        }

        .token-price {
            font-size: 2rem;
            font-weight: bold;
            color: var(--primary);
            margin: 15px 0;
        }

        .token-price span {
            font-size: 1rem;
            color: var(--gray);
            font-weight: normal;
        }

        /* 培训 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .training-card {
            background: #FFFFFF;
            border-radius: 8px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.05);
            padding: 25px;
            border-left: 5px solid var(--accent);
        }

        .training-card h3 {
            font-size: 1.2rem;
            color: var(--dark);
            margin-bottom: 15px;
        }

        .training-card p {
            font-size: 0.9rem;
            color: var(--gray);
            margin-bottom: 15px;
        }

        .training-cert {
            display: inline-block;
            background: var(--light-gray);
            color: var(--primary);
            font-size: 0.8rem;
            padding: 4px 10px;
            border-radius: 4px;
            font-weight: bold;
        }

        /* 案例中心 (展示图片) */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .case-card {
            background: #FFFFFF;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: all 0.3s;
        }

        .case-card:hover {
            transform: translateY(-5px);
        }

        .case-img-box {
            position: relative;
            overflow: hidden;
            background: #EEE;
            aspect-ratio: 16/10;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .case-img-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .case-content {
            padding: 20px;
        }

        .case-tag {
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: bold;
            text-transform: uppercase;
        }

        .case-content h3 {
            font-size: 1.15rem;
            margin: 8px 0;
        }

        .case-content p {
            font-size: 0.9rem;
            color: var(--gray);
        }

        /* 需求匹配表单 */
        .form-section {
            background: var(--light-gray);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .form-wrapper {
            background: #FFFFFF;
            max-width: 800px;
            margin: 0 auto;
            padding: 40px;
            border-radius: 8px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
        }

        .match-form {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .form-group.full {
            grid-column: span 2;
        }

        .form-group label {
            font-weight: bold;
            font-size: 0.9rem;
        }

        .form-group input, .form-group select, .form-group textarea {
            padding: 10px;
            border: 1px solid var(--border);
            border-radius: 4px;
            font-size: 0.95rem;
            outline: none;
            transition: all 0.3s;
        }

        .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 5px rgba(230,0,18,0.1);
        }

        .form-btn-box {
            grid-column: span 2;
            text-align: center;
            margin-top: 20px;
        }

        .form-btn {
            background: var(--primary);
            color: #FFFFFF;
            border: none;
            padding: 12px 40px;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s;
        }

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

        /* 常见问题 FAQ (折叠面板) */
        .faq-wrapper {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 15px 0;
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: bold;
            cursor: pointer;
            font-size: 1.05rem;
            padding: 10px 0;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            color: var(--gray);
            font-size: 0.95rem;
            padding-right: 20px;
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
        }

        .faq-icon::after {
            content: '+';
            font-size: 1.5rem;
            font-weight: normal;
        }

        .faq-item.active .faq-icon::after {
            content: '-';
        }

        /* 帮助中心 & 自助排查 & 百科 */
        .help-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .help-card {
            background: var(--light-gray);
            padding: 25px;
            border-radius: 8px;
        }

        .help-card h3 {
            font-size: 1.2rem;
            color: var(--primary-dark);
            margin-bottom: 15px;
            border-left: 4px solid var(--primary);
            padding-left: 10px;
        }

        .help-card ul {
            list-style: none;
        }

        .help-card li {
            margin-bottom: 10px;
            font-size: 0.9rem;
        }

        .help-card a {
            color: var(--dark);
        }

        .help-card a:hover {
            color: var(--primary);
        }

        /* 客户评论 */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .comment-card {
            background: #FFFFFF;
            padding: 25px;
            border-radius: 8px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.03);
            border: 1px solid var(--border);
        }

        .comment-user {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 15px;
        }

        .user-avatar {
            width: 45px;
            height: 45px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 0.95rem;
        }

        .user-info h4 {
            font-size: 0.95rem;
            color: var(--dark);
        }

        .user-info p {
            font-size: 0.8rem;
            color: var(--gray);
        }

        .comment-text {
            font-size: 0.9rem;
            color: var(--gray);
            font-style: italic;
        }

        /* 行业资讯 & 最新文章 */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .article-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            padding: 20px;
            border-radius: 6px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .article-info h4 {
            font-size: 1rem;
            margin-bottom: 5px;
        }

        .article-info p {
            font-size: 0.8rem;
            color: var(--gray);
        }

        .article-link-btn {
            color: var(--primary);
            font-weight: bold;
            font-size: 0.9rem;
        }

        /* 页脚区 */
        footer {
            background: #1A1A1A;
            color: #E0E0E0;
            padding: 60px 0 20px 0;
            font-size: 0.9rem;
            border-top: 5px solid var(--primary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo img {
            max-width: 150px;
            margin-bottom: 15px;
        }

        .footer-info p {
            margin-bottom: 8px;
            color: #B0B0B0;
        }

        .footer-links h4 {
            color: #FFFFFF;
            margin-bottom: 20px;
            font-size: 1rem;
            position: relative;
        }

        .footer-links h4::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 30px;
            height: 2px;
            background: var(--primary);
        }

        .footer-links ul {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: #B0B0B0;
        }

        .footer-links a:hover {
            color: #FFFFFF;
        }

        .qr-box {
            text-align: center;
        }

        .qr-box img {
            width: 110px;
            height: 110px;
            border-radius: 4px;
            margin-bottom: 10px;
        }

        .friendship-links {
            border-top: 1px solid #333;
            padding-top: 20px;
            margin-bottom: 20px;
        }

        .friendship-links-title {
            font-weight: bold;
            color: #FFFFFF;
            margin-bottom: 10px;
            font-size: 0.85rem;
        }

        .friendship-links a {
            margin-right: 15px;
            color: #888;
            font-size: 0.85rem;
        }

        .friendship-links a:hover {
            color: var(--primary);
        }

        .copyright-box {
            border-top: 1px solid #333;
            padding-top: 20px;
            text-align: center;
            color: #666;
            font-size: 0.8rem;
        }

        /* 浮动客服 */
        .sticky-service {
            position: fixed;
            right: 20px;
            bottom: 80px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .service-item {
            width: 50px;
            height: 50px;
            background: var(--primary);
            color: #FFFFFF;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 4px 10px rgba(0,0,0,0.15);
            position: relative;
            font-size: 0.8rem;
            text-align: center;
            line-height: 1.2;
            padding: 5px;
        }

        .service-item:hover {
            background: var(--primary-dark);
        }

        .qr-hover-box {
            display: none;
            position: absolute;
            right: 60px;
            bottom: 0;
            background: #FFFFFF;
            border: 1px solid var(--border);
            padding: 10px;
            border-radius: 8px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.15);
        }

        .service-item:hover .qr-hover-box {
            display: block;
        }

        .qr-hover-box img {
            width: 120px;
            height: 120px;
        }

        .qr-hover-box p {
            color: var(--dark);
            font-size: 0.75rem;
            margin-top: 5px;
        }

        /* 响应式适配 */
        @media (max-width: 1024px) {
            .stats-grid, .service-grid, .token-grid, .training-grid, .case-grid, .comments-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .flow-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: #FFFFFF;
                border-bottom: 1px solid var(--border);
                padding: 20px;
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
            }

            .nav-menu.active {
                display: flex;
            }

            .menu-toggle {
                display: flex;
            }

            .hero h1 {
                font-size: 1.8rem;
            }

            .about-grid {
                grid-template-columns: 1fr;
            }

            .stats-grid, .service-grid, .token-grid, .training-grid, .case-grid, .comments-grid, .help-grid, .article-grid {
                grid-template-columns: 1fr;
            }

            .flow-grid {
                grid-template-columns: 1fr;
            }

            .match-form {
                grid-template-columns: 1fr;
            }

            .form-group.full {
                grid-column: span 1;
            }

            .form-btn-box {
                grid-column: span 1;
            }

            .footer-grid {
                grid-template-columns: 1fr;
            }
        }