:root {
            --primary: #00b4d8;
            --primary-hover: #0096c7;
            --primary-light: #e0f7fa;
            --secondary: #0ad1c8;
            --bg-light: #f5fcfc;
            --bg-dark: #0f172a;
            --text-dark: #1e293b;
            --text-muted: #64748b;
            --card-bg: #ffffff;
            --border-color: #e2e8f0;
            --max-width: 1200px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-dark);
            background-color: var(--bg-light);
            line-height: 1.6;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: var(--primary);
            transition: color 0.3s;
        }

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

        ul {
            list-style: none;
        }

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

        /* 顶部导航 */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

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

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

        .ai-page-logo {
            height: 40px;
            width: auto;
        }

        .brand-name {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-dark);
            background: linear-gradient(135deg, var(--text-dark), var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .nav-menu {
            display: flex;
            gap: 20px;
            align-items: center;
        }

        .nav-link {
            color: var(--text-muted);
            font-weight: 500;
            font-size: 14px;
            padding: 5px 0;
            border-bottom: 2px solid transparent;
            transition: all 0.3s;
        }

        .nav-link:hover, .nav-link.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }

        .nav-btn {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            padding: 8px 20px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 600;
            transition: opacity 0.3s;
        }

        .nav-btn:hover {
            color: #fff;
            opacity: 0.9;
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            border: none;
            background: transparent;
        }

        .menu-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: var(--text-dark);
            border-radius: 3px;
            transition: 0.3s;
        }

        /* 首页 Hero 首屏 (无图片) */
        .hero-section {
            padding: 100px 0 80px;
            background: radial-gradient(circle at 80% 20%, rgba(10, 209, 200, 0.08) 0%, transparent 50%),
                        radial-gradient(circle at 10% 80%, rgba(0, 180, 216, 0.08) 0%, transparent 50%),
                        linear-gradient(180deg, #ffffff 0%, var(--bg-light) 100%);
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .hero-content {
            max-width: 800px;
            margin: 0 auto;
            position: relative;
            z-index: 10;
        }

        .hero-tag {
            display: inline-block;
            background-color: var(--primary-light);
            color: var(--primary-hover);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .hero-title {
            font-size: 40px;
            line-height: 1.3;
            color: var(--text-dark);
            margin-bottom: 20px;
            font-weight: 800;
        }

        .hero-desc {
            font-size: 18px;
            color: var(--text-muted);
            margin-bottom: 40px;
            line-height: 1.8;
        }

        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 15px;
            flex-wrap: wrap;
            margin-bottom: 60px;
        }

        .btn-main {
            display: inline-block;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            padding: 15px 35px;
            border-radius: 30px;
            font-size: 16px;
            font-weight: 600;
            box-shadow: 0 10px 20px rgba(0, 180, 216, 0.2);
            transition: all 0.3s;
        }

        .btn-main:hover {
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 15px 30px rgba(0, 180, 216, 0.3);
        }

        .btn-sub {
            display: inline-block;
            background-color: #fff;
            color: var(--text-dark);
            border: 1px solid var(--border-color);
            padding: 15px 35px;
            border-radius: 30px;
            font-size: 16px;
            font-weight: 600;
            transition: all 0.3s;
        }

        .btn-sub:hover {
            background-color: var(--bg-light);
            border-color: var(--primary);
            color: var(--primary-hover);
        }

        /* 数据指标卡片 (Hero区内部) */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: 900px;
            margin: 0 auto;
        }

        .stat-card {
            background: #fff;
            padding: 20px;
            border-radius: 12px;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.02);
            border: 1px solid var(--border-color);
            transition: transform 0.3s;
        }

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

        .stat-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary-hover);
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 通用区块样式 */
        section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-color);
        }

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

        .section-tag {
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 10px;
            display: block;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-dark);
        }

        .section-desc {
            color: var(--text-muted);
            max-width: 600px;
            margin: 15px auto 0;
            font-size: 16px;
        }

        /* 关于我们 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 24px;
            color: var(--text-dark);
            margin-bottom: 20px;
        }

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

        .about-points {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
            margin-top: 25px;
        }

        .about-point-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-dark);
            font-weight: 500;
        }

        .about-point-item svg {
            color: var(--secondary);
            flex-shrink: 0;
        }

        .about-intro-box {
            background: linear-gradient(135deg, var(--bg-light) 0%, rgba(10, 209, 200, 0.05) 100%);
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: 20px;
        }

        .about-intro-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 15px;
            color: var(--primary-hover);
        }

        /* AIGC 服务体系 */
        .system-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .system-card {
            background-color: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            transition: all 0.3s;
        }

        .system-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
            border-color: var(--primary);
        }

        .system-icon {
            width: 50px;
            height: 50px;
            background-color: var(--primary-light);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-hover);
            margin-bottom: 20px;
        }

        .system-card h3 {
            font-size: 20px;
            margin-bottom: 15px;
            color: var(--text-dark);
        }

        .system-card p {
            color: var(--text-muted);
            font-size: 14px;
            margin-bottom: 20px;
        }

        .platform-tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .platform-tag {
            background-color: #f1f5f9;
            color: #475569;
            font-size: 11px;
            padding: 3px 8px;
            border-radius: 4px;
        }

        /* 制作流程 & 全流程 */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .step-item {
            background: #fff;
            padding: 30px 20px;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            text-align: center;
            position: relative;
        }

        .step-num {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            margin: 0 auto 20px;
        }

        .step-item h3 {
            font-size: 18px;
            margin-bottom: 10px;
            color: var(--text-dark);
        }

        .step-item p {
            color: var(--text-muted);
            font-size: 13px;
        }

        /* 全行业解决方案 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .solution-card {
            background-color: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            overflow: hidden;
            transition: all 0.3s;
        }

        .solution-card:hover {
            box-shadow: 0 12px 30px rgba(0,0,0,0.06);
            border-color: var(--primary);
        }

        .solution-body {
            padding: 25px;
        }

        .solution-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-dark);
        }

        .solution-desc {
            color: var(--text-muted);
            font-size: 14px;
            margin-bottom: 20px;
            line-height: 1.6;
        }

        .solution-features {
            border-top: 1px solid var(--border-color);
            padding-top: 15px;
        }

        .solution-feature-item {
            font-size: 13px;
            color: var(--text-dark);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 8px;
        }

        .solution-feature-item::before {
            content: "✓";
            color: var(--secondary);
            font-weight: bold;
        }

        /* 服务网络 */
        .network-section {
            background-color: #fff;
        }

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

        .network-map-placeholder {
            background: linear-gradient(135deg, var(--bg-light) 0%, rgba(0, 180, 216, 0.05) 100%);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 40px;
            text-align: center;
        }

        .map-dots {
            display: flex;
            justify-content: center;
            gap: 30px;
            flex-wrap: wrap;
            margin-top: 30px;
        }

        .map-dot {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            color: var(--text-dark);
            font-size: 14px;
        }

        .map-dot::before {
            content: "";
            display: inline-block;
            width: 10px;
            height: 10px;
            background-color: var(--secondary);
            border-radius: 50%;
            box-shadow: 0 0 0 4px rgba(10, 209, 200, 0.2);
        }

        .network-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .network-card {
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 20px;
            background-color: var(--bg-light);
        }

        .network-card h4 {
            font-size: 16px;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .network-card p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 技术标准 */
        .spec-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .spec-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            text-align: center;
        }

        .spec-icon {
            font-size: 40px;
            margin-bottom: 15px;
        }

        .spec-card h3 {
            font-size: 18px;
            color: var(--text-dark);
            margin-bottom: 12px;
        }

        .spec-card p {
            font-size: 14px;
            color: var(--text-muted);
        }

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

        .case-card {
            background: #fff;
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: all 0.3s;
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.05);
        }

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

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

        .case-info {
            padding: 20px;
        }

        .case-badge {
            display: inline-block;
            background-color: var(--primary-light);
            color: var(--primary-hover);
            font-size: 11px;
            padding: 2px 8px;
            border-radius: 4px;
            margin-bottom: 10px;
            font-weight: 600;
        }

        .case-title {
            font-size: 16px;
            color: var(--text-dark);
            font-weight: 700;
            margin-bottom: 8px;
        }

        .case-desc {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 对比评测 */
        .evaluation-box {
            background-color: #fff;
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 40px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
        }

        .eval-summary {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 30px;
            margin-bottom: 30px;
            flex-wrap: wrap;
            gap: 20px;
        }

        .eval-score-block {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .eval-stars {
            color: #f59e0b;
            font-size: 24px;
        }

        .eval-score {
            font-size: 48px;
            font-weight: 800;
            color: var(--text-dark);
        }

        .eval-score span {
            font-size: 18px;
            color: var(--text-muted);
            font-weight: 400;
        }

        .eval-badge {
            background-color: #fef3c7;
            color: #d97706;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 14px;
        }

        .comparison-table-wrapper {
            width: 100%;
            overflow-x: auto;
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }

        .comparison-table th, .comparison-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-color);
        }

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

        .comparison-table td strong {
            color: var(--primary-hover);
        }

        /* Token 比价 */
        .token-section {
            background-color: var(--bg-light);
        }

        .token-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 30px;
        }

        .token-table-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 25px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.01);
        }

        .token-sidebar {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .token-promo-card {
            background: linear-gradient(135deg, var(--bg-dark) 0%, #1e293b 100%);
            color: #fff;
            border-radius: 16px;
            padding: 30px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .token-promo-card h3 {
            font-size: 22px;
            margin-bottom: 15px;
            color: #fff;
        }

        .token-promo-card p {
            color: #94a3b8;
            font-size: 14px;
            margin-bottom: 25px;
        }

        .token-promo-btn {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            border: none;
            padding: 12px 25px;
            border-radius: 8px;
            font-weight: 600;
            text-align: center;
            transition: opacity 0.3s;
        }

        .token-promo-btn:hover {
            color: #fff;
            opacity: 0.95;
        }

        /* 培训业务 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .training-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            transition: all 0.3s;
        }

        .training-card:hover {
            border-color: var(--primary);
            box-shadow: 0 10px 25px rgba(0,0,0,0.04);
        }

        .training-cert {
            font-size: 12px;
            color: var(--secondary);
            font-weight: 700;
            text-transform: uppercase;
            margin-bottom: 10px;
            display: block;
        }

        .training-card h3 {
            font-size: 18px;
            color: var(--text-dark);
            margin-bottom: 15px;
        }

        .training-card ul {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .training-card li {
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .training-card li::before {
            content: "•";
            color: var(--primary);
            font-size: 16px;
        }

        /* 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: #fff;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
        }

        .help-card h3 {
            font-size: 18px;
            color: var(--text-dark);
            margin-bottom: 15px;
            border-bottom: 2px solid var(--bg-light);
            padding-bottom: 10px;
        }

        .help-list li {
            margin-bottom: 12px;
            font-size: 14px;
        }

        .help-list a {
            color: var(--text-dark);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

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

        .help-list span {
            color: var(--text-muted);
            font-size: 12px;
        }

        /* FAQ 折叠面板 */
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: #fff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            margin-bottom: 15px;
            overflow: hidden;
            transition: all 0.3s;
        }

        .faq-header {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

        .faq-icon {
            font-size: 18px;
            color: var(--text-muted);
            transition: transform 0.3s;
        }

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

        .faq-content {
            padding: 20px 24px;
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            border-top: 1px solid var(--border-color);
        }

        .faq-item.active .faq-body {
            max-height: 300px; /* 足够容纳文本的高度 */
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            color: var(--primary);
        }

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

        .review-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 25px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .review-text {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 20px;
            position: relative;
        }

        .review-text::before {
            content: "“";
            font-size: 40px;
            color: rgba(10, 209, 200, 0.1);
            position: absolute;
            left: -10px;
            top: -20px;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
            border-top: 1px solid var(--border-color);
            padding-top: 15px;
        }

        .user-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--primary-light);
            color: var(--primary-hover);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }

        .user-info h4 {
            font-size: 14px;
            color: var(--text-dark);
            font-weight: 700;
        }

        .user-info p {
            font-size: 11px;
            color: var(--text-muted);
        }

        /* 行业资讯 / 知识库 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .news-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            overflow: hidden;
            transition: all 0.3s;
        }

        .news-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
        }

        .news-body {
            padding: 25px;
        }

        .news-date {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 10px;
            display: block;
        }

        .news-title {
            font-size: 16px;
            color: var(--text-dark);
            margin-bottom: 15px;
            font-weight: 700;
            line-height: 1.4;
        }

        .news-link {
            font-size: 13px;
            color: var(--primary-hover);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* 智能需求匹配与联系我们 */
        .contact-grid {
            display: grid;
            grid-template-columns: 3fr 2fr;
            gap: 40px;
        }

        .form-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 40px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
        }

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

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

        .form-label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            outline: none;
            font-size: 14px;
            transition: border-color 0.3s;
        }

        .form-control:focus {
            border-color: var(--primary);
        }

        textarea.form-control {
            height: 120px;
            resize: vertical;
        }

        .submit-btn {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            border: none;
            padding: 14px 30px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 16px;
            cursor: pointer;
            width: 100%;
            transition: opacity 0.3s;
        }

        .submit-btn:hover {
            opacity: 0.9;
        }

        .contact-info-card {
            background-color: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 40px;
            display: flex;
            flex-direction: column;
            gap: 30px;
        }

        .contact-method {
            display: flex;
            align-items: flex-start;
            gap: 15px;
        }

        .contact-icon {
            width: 40px;
            height: 40px;
            background-color: var(--primary-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-hover);
            flex-shrink: 0;
        }

        .contact-detail h4 {
            font-size: 15px;
            color: var(--text-dark);
            margin-bottom: 4px;
            font-weight: 700;
        }

        .contact-detail p, .contact-detail a {
            font-size: 14px;
            color: var(--text-muted);
        }

        .qrcode-box {
            margin-top: 10px;
            text-align: center;
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: 12px;
            background-color: #fff;
            max-width: 180px;
        }

        .qrcode-box img {
            width: 100%;
            height: auto;
            border-radius: 6px;
        }

        .qrcode-label {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 8px;
            display: block;
        }

        /* 侧边悬浮客服 */
        .floating-service {
            position: fixed;
            right: 20px;
            bottom: 80px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            background-color: #fff;
            border-radius: 50%;
            box-shadow: 0 4px 15px rgba(0,0,0,0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            position: relative;
            transition: all 0.3s;
        }

        .float-btn:hover {
            background-color: var(--primary-light);
        }

        .float-btn svg {
            width: 24px;
            height: 24px;
            color: var(--primary-hover);
        }

        .float-qrcode-pop {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: #fff;
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: 12px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            display: none;
            text-align: center;
            width: 160px;
        }

        .float-qrcode-pop img {
            width: 100%;
            height: auto;
            border-radius: 4px;
        }

        .float-qrcode-pop span {
            font-size: 11px;
            color: var(--text-muted);
            margin-top: 5px;
            display: block;
        }

        .float-btn:hover .float-qrcode-pop {
            display: block;
        }

        /* 友情链接与页脚 */
        footer {
            background-color: var(--bg-dark);
            color: #94a3b8;
            padding: 60px 0 20px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            border-bottom: 1px solid #334155;
            padding-bottom: 40px;
            margin-bottom: 30px;
        }

        .footer-logo-desc h3 {
            color: #fff;
            font-size: 20px;
            margin-bottom: 15px;
        }

        .footer-logo-desc p {
            font-size: 14px;
            line-height: 1.6;
            margin-bottom: 20px;
        }

        .footer-links-col h4 {
            color: #fff;
            font-size: 15px;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .footer-links-col ul li {
            margin-bottom: 12px;
        }

        .footer-links-col ul li a {
            color: #94a3b8;
            font-size: 13px;
        }

        .footer-links-col ul li a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 13px;
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            align-items: center;
        }

        .friend-links a {
            color: #64748b;
        }

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

        /* 移动端响应式 */
        @media (max-width: 1024px) {
            .system-grid, .solutions-grid, .spec-grid, .case-grid, .training-grid, .help-grid, .reviews-grid, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
        }

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

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

            .menu-toggle {
                display: flex;
            }

            .hero-title {
                font-size: 28px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .about-grid, .network-grid, .token-grid, .contact-grid {
                grid-template-columns: 1fr;
            }

            .system-grid, .solutions-grid, .spec-grid, .case-grid, .training-grid, .help-grid, .reviews-grid, .news-grid {
                grid-template-columns: 1fr;
            }
            
            .process-steps {
                grid-template-columns: 1fr;
            }

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

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