/* 变量及复位 */
        :root {
            --primary: #0d9488;
            --primary-light: #0ea5e9;
            --secondary: #14b8a6;
            --dark: #0f172a;
            --light-bg: #f8fafc;
            --card-bg: #ffffff;
            --text-main: #334155;
            --text-muted: #64748b;
            --gradient: linear-gradient(135deg, #0d9488, #0ea5e9);
            --gradient-hover: linear-gradient(135deg, #0ea5e9, #0d9488);
            --border-color: #e2e8f0;
            --shadow: 0 4px 20px -2px rgba(13, 148, 136, 0.08);
            --shadow-hover: 0 10px 30px -5px rgba(13, 148, 136, 0.15);
            --container-width: 1200px;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--light-bg);
            color: var(--text-main);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
        }

        /* 通用容器 */
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 标题规范 */
        .section-title-wrap {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-title-wrap h2 {
            font-size: 2rem;
            color: var(--dark);
            margin-bottom: 12px;
            position: relative;
            display: inline-block;
        }

        .section-title-wrap h2::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: var(--gradient);
            border-radius: 2px;
        }

        .section-title-wrap p {
            color: var(--text-muted);
            font-size: 1rem;
        }

        /* 按钮样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 8px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
            font-size: 1rem;
        }

        .btn-primary {
            background: var(--gradient);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(13, 148, 136, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(13, 148, 136, 0.4);
            opacity: 0.95;
        }

        .btn-outline {
            border: 2px solid var(--primary);
            color: var(--primary);
            background: transparent;
        }

        .btn-outline:hover {
            background: rgba(13, 148, 136, 0.05);
            transform: translateY(-2px);
        }

        /* 顶部导航 */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 70px;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            display: flex;
            align-items: center;
        }

        .header-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }

        .logo-wrap span {
            font-size: 1.25rem;
            font-weight: 700;
            background: var(--gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        .nav-link {
            text-decoration: none;
            color: var(--text-main);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.3s;
        }

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

        .nav-right {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            background: none;
            border: none;
            cursor: pointer;
        }

        .menu-toggle span {
            width: 25px;
            height: 2px;
            background-color: var(--dark);
            transition: 0.3s;
        }

        /* Hero 首屏 - 无图科技感 */
        .hero {
            padding: 160px 0 100px;
            background: radial-gradient(circle at 80% 20%, rgba(14, 165, 233, 0.08) 0%, transparent 50%),
                        radial-gradient(circle at 10% 80%, rgba(13, 148, 136, 0.08) 0%, transparent 50%),
                        linear-gradient(to bottom, #ffffff, var(--light-bg));
            text-align: center;
            position: relative;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 10%;
            left: 5%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(13, 148, 136, 0.05) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: 10%;
            right: 5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(14, 165, 233, 0.05) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero h1 {
            font-size: 2.8rem;
            color: var(--dark);
            line-height: 1.25;
            margin-bottom: 24px;
            font-weight: 800;
            letter-spacing: -0.5px;
        }

        .hero h1 span {
            background: var(--gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero p.lead {
            font-size: 1.2rem;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 36px;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 48px;
        }

        .hero-tags {
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
            max-width: 900px;
            margin: 0 auto;
        }

        .hero-tag {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--text-main);
            transition: all 0.3s ease;
        }

        .hero-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-1px);
        }

        /* 数据指标卡片 */
        .stats-section {
            padding: 40px 0;
            background: #ffffff;
            margin-top: -40px;
            position: relative;
            z-index: 10;
            border-radius: 16px;
            box-shadow: var(--shadow);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }

        .stat-item h3 {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .stat-item p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* 板块通用内边距 */
        .section-padding {
            padding: 80px 0;
        }

        /* 卡片网格基础 */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        /* 关于我们 */
        .about-wrap {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 1.8rem;
            color: var(--dark);
            margin-bottom: 16px;
        }

        .about-content p {
            margin-bottom: 16px;
            color: var(--text-main);
        }

        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 24px;
        }

        .about-feat-item {
            background: #ffffff;
            padding: 16px;
            border-radius: 8px;
            border-left: 4px solid var(--primary);
            box-shadow: var(--shadow);
        }

        .about-feat-item h4 {
            color: var(--dark);
            margin-bottom: 4px;
            font-size: 0.95rem;
        }

        .about-feat-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* 全平台AIGC服务 */
        .service-card {
            background: var(--card-bg);
            border-radius: 12px;
            padding: 30px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: var(--secondary);
        }

        .service-icon {
            width: 50px;
            height: 50px;
            border-radius: 10px;
            background: rgba(13, 148, 136, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.5rem;
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 1.25rem;
            color: var(--dark);
            margin-bottom: 12px;
        }

        .service-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .service-card ul {
            list-style: none;
            padding: 0;
        }

        .service-card li {
            font-size: 0.85rem;
            color: var(--text-main);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .service-card li::before {
            content: "✓";
            color: var(--secondary);
            font-weight: bold;
        }

        /* 一站式AIGC制作场景 */
        .scene-section {
            background: #ffffff;
        }

        .scene-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
        }

        .scene-card {
            background: var(--light-bg);
            border-radius: 12px;
            padding: 24px;
            border: 1px solid transparent;
            transition: all 0.3s ease;
        }

        .scene-card:hover {
            border-color: var(--primary);
            background: #ffffff;
            box-shadow: var(--shadow-hover);
        }

        .scene-card h4 {
            font-size: 1.1rem;
            color: var(--dark);
            margin-bottom: 8px;
        }

        .scene-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 全行业解决方案 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .sol-card {
            background: #ffffff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all 0.3s ease;
            border: 1px solid var(--border-color);
        }

        .sol-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }

        .sol-content {
            padding: 24px;
        }

        .sol-content h4 {
            font-size: 1.15rem;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .sol-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 全国服务网络 & 价格参考等 */
        .network-section {
            background: #ffffff;
        }

        .network-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .map-mock {
            background: linear-gradient(135deg, rgba(13, 148, 136, 0.03), rgba(14, 165, 233, 0.05));
            border-radius: 16px;
            padding: 40px;
            border: 1px solid var(--border-color);
            position: relative;
        }

        .map-point {
            position: absolute;
            background: var(--primary);
            width: 10px;
            height: 10px;
            border-radius: 50%;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(0.8); box-shadow: 0 0 0 0 rgba(13, 148, 136, 0.7); }
            70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(13, 148, 136, 0); }
            100% { transform: scale(0.8); box-shadow: 0 0 0 0 rgba(13, 148, 136, 0); }
        }

        /* 标准化AIGC流程 */
        .flow-timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding: 20px 0;
        }

        .flow-timeline::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            left: 50%;
            width: 2px;
            background: var(--border-color);
            transform: translateX(-50%);
        }

        .flow-item {
            position: relative;
            margin-bottom: 40px;
            width: 50%;
            padding: 0 30px;
        }

        .flow-item:nth-child(odd) {
            left: 0;
            text-align: right;
        }

        .flow-item:nth-child(even) {
            left: 50%;
            text-align: left;
        }

        .flow-dot {
            position: absolute;
            top: 4px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid #ffffff;
            box-shadow: 0 0 0 3px var(--secondary);
            z-index: 10;
        }

        .flow-item:nth-child(odd) .flow-dot {
            right: -8px;
        }

        .flow-item:nth-child(even) .flow-dot {
            left: -8px;
        }

        .flow-content {
            background: #ffffff;
            padding: 20px;
            border-radius: 8px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
            display: inline-block;
            max-width: 100%;
        }

        .flow-content h4 {
            color: var(--dark);
            margin-bottom: 6px;
            font-size: 1.05rem;
        }

        .flow-content p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* 技术标准 */
        .tech-standards {
            background: #ffffff;
        }

        .standards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .standard-card {
            border: 1px dashed var(--primary);
            border-radius: 12px;
            padding: 24px;
            background: rgba(13, 148, 136, 0.01);
            text-align: center;
        }

        .standard-card h4 {
            color: var(--dark);
            margin-bottom: 10px;
            font-size: 1.1rem;
        }

        .standard-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 客户案例中心 - 含素材图 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .case-card {
            background: #ffffff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }

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

        .case-img-container {
            width: 100%;
            height: 200px;
            overflow: hidden;
            background: var(--light-bg);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .case-img-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .case-card:hover .case-img-container img {
            transform: scale(1.05);
        }

        .case-body {
            padding: 20px;
        }

        .case-tag {
            display: inline-block;
            font-size: 0.75rem;
            background: rgba(13, 148, 136, 0.08);
            color: var(--primary);
            padding: 3px 8px;
            border-radius: 4px;
            margin-bottom: 10px;
            font-weight: 600;
        }

        .case-body h4 {
            font-size: 1.05rem;
            color: var(--dark);
            margin-bottom: 8px;
        }

        .case-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* 对比评测 - 5星评分表 */
        .rating-section {
            background: linear-gradient(to bottom, #ffffff, var(--light-bg));
        }

        .rating-box {
            background: #ffffff;
            border-radius: 16px;
            padding: 40px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
            margin-bottom: 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
        }

        .score-huge {
            font-size: 4rem;
            font-weight: 800;
            background: var(--gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1;
        }

        .stars-wrap {
            color: #f59e0b;
            font-size: 1.5rem;
            margin-bottom: 8px;
        }

        .compare-table-container {
            width: 100%;
            overflow-x: auto;
            background: #ffffff;
            border-radius: 12px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 700px;
        }

        .compare-table th, .compare-table td {
            padding: 16px 24px;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.9rem;
        }

        .compare-table th {
            background-color: var(--light-bg);
            color: var(--dark);
            font-weight: 700;
        }

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

        .compare-table td.highlight-cell {
            background-color: rgba(13, 148, 136, 0.02);
            font-weight: 600;
            color: var(--primary);
        }

        /* Token 比价参考 */
        .token-section {
            background: #ffffff;
        }

        .token-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 40px;
            align-items: center;
        }

        /* 人工智能培训 & 职业技术培训 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .cert-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
            text-align: center;
            box-shadow: var(--shadow);
            transition: all 0.3s;
        }

        .cert-card:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
        }

        .cert-badge {
            display: inline-block;
            background: rgba(14, 165, 233, 0.1);
            color: var(--primary-light);
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 0.75rem;
            margin-bottom: 12px;
            font-weight: 600;
        }

        .cert-card h4 {
            font-size: 1.05rem;
            color: var(--dark);
            margin-bottom: 8px;
        }

        .cert-card p {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* 需求表单板块 */
        .matching-section {
            background: linear-gradient(135deg, rgba(13, 148, 136, 0.02), rgba(14, 165, 233, 0.02));
        }

        .matching-wrap {
            max-width: 700px;
            margin: 0 auto;
            background: #ffffff;
            padding: 40px;
            border-radius: 16px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--dark);
            font-size: 0.9rem;
        }

        .form-control {
            width: 100%;
            padding: 12px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 0.95rem;
            color: var(--dark);
            background-color: var(--light-bg);
            transition: all 0.3s;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            background-color: #ffffff;
            box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.1);
        }

        /* 帮助中心 & FAQ折叠面板 & 自助排查 & 术语百科 */
        .help-grid {
            display: grid;
            grid-template-columns: 1.8fr 1.2fr;
            gap: 40px;
        }

        .faq-accordion {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            overflow: hidden;
            transition: all 0.3s;
        }

        .faq-header {
            padding: 16px 20px;
            background: #ffffff;
            font-weight: 600;
            color: var(--dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            font-size: 0.95rem;
        }

        .faq-header::after {
            content: '+';
            font-size: 1.2rem;
            color: var(--primary);
            transition: transform 0.3s;
        }

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

        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: var(--light-bg);
        }

        .faq-content-inner {
            padding: 16px 20px;
            font-size: 0.9rem;
            color: var(--text-main);
            border-top: 1px solid var(--border-color);
        }

        .wiki-side {
            background: #ffffff;
            padding: 24px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow);
        }

        .wiki-side h3 {
            font-size: 1.2rem;
            color: var(--dark);
            margin-bottom: 16px;
            border-bottom: 2px solid var(--light-bg);
            padding-bottom: 8px;
        }

        .wiki-list {
            list-style: none;
        }

        .wiki-list li {
            margin-bottom: 12px;
        }

        .wiki-list strong {
            display: block;
            font-size: 0.9rem;
            color: var(--primary);
        }

        .wiki-list span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 客户评论卡片 */
        .reviews-section {
            background: #ffffff;
        }

        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .review-card {
            background: var(--light-bg);
            padding: 24px;
            border-radius: 12px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
        }

        .review-text {
            font-size: 0.9rem;
            color: var(--text-main);
            margin-bottom: 16px;
            font-style: italic;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .user-info h5 {
            font-size: 0.95rem;
            color: var(--dark);
            margin: 0;
        }

        .user-info p {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* 资讯与知识库 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .news-card {
            background: #ffffff;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all 0.3s;
        }

        .news-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }

        .news-body {
            padding: 20px;
        }

        .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .news-body h4 {
            font-size: 1.05rem;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .news-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .news-link {
            text-decoration: none;
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 600;
        }

        /* 加盟代理 */
        .agent-section {
            background: linear-gradient(135deg, rgba(13, 148, 136, 0.05), rgba(14, 165, 233, 0.05));
            border-radius: 16px;
            padding: 60px 40px;
            text-align: center;
        }

        .agent-section h3 {
            font-size: 1.8rem;
            color: var(--dark);
            margin-bottom: 16px;
        }

        .agent-section p {
            max-width: 700px;
            margin: 0 auto 24px;
            color: var(--text-main);
        }

        /* 联系我们 & 二维码 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 40px;
        }

        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .contact-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }

        .contact-icon {
            font-size: 1.5rem;
            color: var(--primary);
        }

        .contact-text h5 {
            font-size: 1rem;
            color: var(--dark);
            margin-bottom: 4px;
        }

        .contact-text p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
        }

        .qr-wrap {
            background: #ffffff;
            padding: 30px;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow);
            text-align: center;
        }

        .qr-wrap img {
            max-width: 180px;
            height: auto;
            margin-bottom: 12px;
            border: 1px solid var(--border-color);
            padding: 6px;
            border-radius: 8px;
        }

        .qr-wrap p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* 宣传图展示区 (4图排布) */
        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 40px;
        }

        .gallery-item {
            border-radius: 8px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            height: 180px;
        }

        .gallery-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* 页脚 & 友情链接 */
        .footer {
            background-color: var(--dark);
            color: #94a3b8;
            padding: 60px 0 20px;
            font-size: 0.85rem;
            border-top: 4px solid var(--primary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo h4 {
            color: #ffffff;
            font-size: 1.2rem;
            margin-bottom: 12px;
        }

        .footer-links h5 {
            color: #ffffff;
            font-size: 0.95rem;
            margin-bottom: 16px;
        }

        .footer-links ul {
            list-style: none;
            padding: 0;
        }

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links a {
            color: #94a3b8;
            text-decoration: none;
            transition: color 0.3s;
        }

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

        .friend-links {
            margin-bottom: 30px;
            padding-top: 20px;
            border-top: 1px solid #1e293b;
        }

        .friend-links-title {
            color: #ffffff;
            margin-bottom: 12px;
            font-weight: 600;
        }

        .friend-links-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .friend-links-list a {
            color: #64748b;
            text-decoration: none;
            transition: color 0.3s;
        }

        .friend-links-list a:hover {
            color: #ffffff;
        }

        .copyright-area {
            border-top: 1px solid #1e293b;
            padding-top: 20px;
            text-align: center;
            color: #64748b;
        }

        /* 浮动组件 */
        .floating-widgets {
            position: fixed;
            right: 20px;
            bottom: 30px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            z-index: 999;
        }

        .widget-btn {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: #ffffff;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            text-decoration: none;
            color: var(--primary);
            font-size: 1.2rem;
            transition: all 0.3s;
            position: relative;
        }

        .widget-btn:hover {
            background: var(--primary);
            color: #ffffff;
            transform: translateY(-2px);
        }

        .widget-qr {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: #ffffff;
            padding: 16px;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            display: none;
            text-align: center;
            width: 160px;
            border: 1px solid var(--border-color);
        }

        .widget-qr img {
            width: 120px;
            height: auto;
        }

        .widget-btn:hover .widget-qr {
            display: block;
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .solutions-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .case-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .gallery-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .help-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2rem;
            }
            .about-wrap, .network-grid, .token-grid, .contact-grid {
                grid-template-columns: 1fr;
            }
            .flow-timeline::before {
                left: 20px;
            }
            .flow-item {
                width: 100%;
                padding-left: 45px;
                padding-right: 0;
            }
            .flow-item:nth-child(odd) {
                text-align: left;
                left: 0;
            }
            .flow-item:nth-child(even) {
                left: 0;
            }
            .flow-item:nth-child(odd) .flow-dot, .flow-item:nth-child(even) .flow-dot {
                left: 12px;
            }
            .compare-table th, .compare-table td {
                padding: 12px 14px;
            }
            .reviews-grid {
                grid-template-columns: 1fr;
            }
            .solutions-grid, .case-grid, .standards-grid {
                grid-template-columns: 1fr;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: #ffffff;
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .header-container {
                position: relative;
            }
        }