:root {
            --primary: #10b981;
            --primary-hover: #059669;
            --primary-light: #ecfdf5;
            --primary-dark: #047857;
            --accent-green: #00e676;
            --text-dark: #0f172a;
            --text-muted: #475569;
            --bg-light: #f8fafc;
            --card-bg: #ffffff;
            --border-color: #e2e8f0;
            --shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 12px rgba(16, 185, 129, 0.08);
            --shadow-lg: 0 10px 25px rgba(16, 185, 129, 0.12);
            --radius-md: 8px;
            --radius-lg: 14px;
            --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(--bg-light);
            color: var(--text-dark);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
            width: 100%;
        }

        /* 统一容器 */
        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }

        /* 统一模块外边距 */
        section {
            padding: 70px 0;
            position: relative;
        }

        /* 标题样式 */
        .section-header {
            text-align: center;
            margin-bottom: 45px;
        }

        .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 10px;
            border: 1px solid rgba(16, 185, 129, 0.2);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .section-title {
            font-size: 2.2rem;
            color: var(--text-dark);
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 700px;
            margin: 0 auto;
        }

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

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

        .brand-area {
            display: flex;
            align-items: center;
            gap: 12px;
        }

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

        .brand-title {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--text-dark);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .brand-title span {
            color: var(--primary);
        }

        /* 规则指定：.nav-links gap 必须为 0 */
        .nav-links {
            display: flex;
            align-items: center;
            gap: 0;
            list-style: none;
        }

        .nav-links li a {
            text-decoration: none;
            color: var(--text-dark);
            font-size: 0.92rem;
            font-weight: 500;
            padding: 8px 12px;
            display: block;
            transition: color 0.25s ease;
            white-space: nowrap;
        }

        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--primary);
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 22px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: var(--radius-md);
            text-decoration: none;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
            gap: 8px;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
        }

        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
        }

        .btn-outline {
            background: transparent;
            color: var(--text-dark);
            border: 1.5px solid var(--border-color);
        }

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

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-dark);
            cursor: pointer;
        }

        /* 1. 首页 Hero - 首屏严格无图片 */
        .hero-section {
            background: linear-gradient(135deg, #ffffff 0%, #f0fdf4 50%, #e6fffa 100%);
            padding: 90px 0 70px;
            text-align: center;
            border-bottom: 1px solid var(--border-color);
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #ffffff;
            border: 1px solid rgba(16, 185, 129, 0.3);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.88rem;
            color: var(--primary-dark);
            margin-bottom: 25px;
            box-shadow: var(--shadow-sm);
        }

        .hero-badge-dot {
            width: 8px;
            height: 8px;
            background-color: var(--accent-green);
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 8px var(--accent-green);
        }

        h1.hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-dark);
            letter-spacing: -0.5px;
            margin-bottom: 20px;
            line-height: 1.25;
        }

        .hero-title-highlight {
            color: var(--primary);
            background: linear-gradient(120deg, var(--primary) 0%, #059669 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 820px;
            margin: 0 auto 35px;
            line-height: 1.7;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            margin-bottom: 45px;
            flex-wrap: wrap;
        }

        .hero-actions .btn {
            padding: 13px 30px;
            font-size: 1rem;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: 960px;
            margin: 0 auto;
        }

        .stat-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 20px 15px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: transform 0.3s ease;
        }

        .stat-card:hover {
            transform: translateY(-4px);
            border-color: var(--primary);
        }

        .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 2. 关于我们 / 平台介绍 */
        .about-section {
            background-color: #ffffff;
        }

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

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

        .about-content p {
            color: var(--text-muted);
            margin-bottom: 18px;
            line-height: 1.7;
        }

        .about-highlights {
            list-style: none;
            margin-top: 20px;
        }

        .about-highlights li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 12px;
            color: var(--text-dark);
            font-weight: 500;
        }

        .about-highlights li::before {
            content: "✓";
            color: var(--primary);
            font-weight: bold;
            background: var(--primary-light);
            width: 22px;
            height: 22px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .models-cloud-box {
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: var(--radius-lg);
        }

        .models-cloud-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 15px;
            color: var(--text-dark);
        }

        .models-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .model-tag {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 5px 12px;
            border-radius: 6px;
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: all 0.2s ease;
        }

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

        /* 3. AIGC服务 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }

        .service-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-sm);
        }

        .service-card:hover {
            transform: translateY(-6px);
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }

        .service-icon {
            width: 52px;
            height: 52px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: bold;
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 1.2rem;
            margin-bottom: 10px;
            color: var(--text-dark);
        }

        .service-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 4. 一站式制作场景展示 */
        .scenarios-section {
            background-color: #ffffff;
        }

        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .scenario-item {
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 22px;
            transition: border-color 0.25s ease;
        }

        .scenario-item:hover {
            border-color: var(--primary);
        }

        .scenario-item h4 {
            font-size: 1.05rem;
            color: var(--primary-dark);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .scenario-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
        }

        /* 5. 行业方案 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .solution-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 30px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .solution-card h3 {
            font-size: 1.3rem;
            color: var(--text-dark);
            margin-bottom: 12px;
        }

        .solution-card p {
            color: var(--text-muted);
            font-size: 0.93rem;
            margin-bottom: 18px;
        }

        .solution-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .solution-tag-item {
            font-size: 0.78rem;
            background: var(--primary-light);
            color: var(--primary-dark);
            padding: 4px 10px;
            border-radius: 4px;
        }

        /* 6. 服务网络 */
        .network-section {
            background: linear-gradient(180deg, var(--bg-light) 0%, #ffffff 100%);
        }

        .network-box {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 35px;
            text-align: center;
            box-shadow: var(--shadow-sm);
        }

        .network-nodes {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 30px;
        }

        .network-node {
            flex: 1;
            min-width: 150px;
            padding: 15px;
            background: var(--bg-light);
            border-radius: var(--radius-md);
        }

        .node-title {
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 5px;
        }

        .node-desc {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        /* 7. 标准流程 */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
            position: relative;
        }

        .step-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px 16px;
            text-align: center;
            position: relative;
        }

        .step-num {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #ffffff;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .step-title {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .step-desc {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        /* 8. 案例中心 */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

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

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

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

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

        .case-info {
            padding: 20px;
        }

        .case-info h4 {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }

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

        .banner-row {
            margin-top: 40px;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        /* 9. 对比评测 - 突出推荐五星 9.9分 */
        .comparison-section {
            background-color: #ffffff;
        }

        .rating-box {
            background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
            border: 1.5px solid var(--primary);
            border-radius: var(--radius-lg);
            padding: 30px;
            margin-bottom: 35px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }

        .rating-score-area {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .score-big {
            font-size: 3.5rem;
            font-weight: 900;
            color: var(--primary-dark);
            line-height: 1;
        }

        .score-details {
            display: flex;
            flex-direction: column;
        }

        .stars-row {
            color: #f59e0b;
            font-size: 1.4rem;
            letter-spacing: 2px;
        }

        .recommend-tag {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-top: 4px;
        }

        .comp-table-wrap {
            overflow-x: auto;
        }

        .comp-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
        }

        .comp-table th, .comp-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.92rem;
        }

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

        .comp-table th.highlight-col, .comp-table td.highlight-col {
            background: rgba(16, 185, 129, 0.05);
            font-weight: 600;
            color: var(--primary-dark);
        }

        .check-icon {
            color: var(--primary);
            font-weight: bold;
        }

        .cross-icon {
            color: #ef4444;
        }

        /* 10. 需求匹配与表单 */
        .form-section {
            background: linear-gradient(135deg, #ffffff 0%, #f0fdf4 100%);
        }

        .form-wrapper {
            max-width: 720px;
            margin: 0 auto;
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 40px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
        }

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

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

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            font-size: 0.95rem;
            outline: none;
            transition: border-color 0.25s ease;
            background: #ffffff;
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
        }

        textarea.form-control {
            resize: vertical;
            min-height: 110px;
        }

        /* 11. Token 比价中心 */
        .token-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .token-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            text-align: center;
        }

        .token-card h4 {
            font-size: 1.1rem;
            margin-bottom: 10px;
        }

        .token-price {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            margin: 12px 0;
        }

        .token-unit {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 12. 帮助中心与 14. AI百科 */
        .help-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .help-box {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: var(--radius-lg);
        }

        .help-box h3 {
            font-size: 1.2rem;
            margin-bottom: 16px;
            color: var(--text-dark);
            border-left: 4px solid var(--primary);
            padding-left: 10px;
        }

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

        .help-list li {
            padding: 10px 0;
            border-bottom: 1px dashed var(--border-color);
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .help-list li:last-child {
            border-bottom: none;
        }

        /* 13. FAQ 常见问题折叠面板 */
        .faq-grid {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
        }

        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

        .faq-question::after {
            content: "+";
            font-size: 1.3rem;
            color: var(--primary);
            transition: transform 0.25s ease;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            background: var(--bg-light);
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.6;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 16px 24px;
            border-top: 1px solid var(--border-color);
        }

        /* 15. 行业资讯与文章 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .news-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px;
        }

        .news-card h4 {
            font-size: 1rem;
            margin-bottom: 10px;

        }

        .news-card a {
            color: var(--text-dark);
            text-decoration: none;
            transition: color 0.2s;
        }

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

        .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 10px;
        }

        /* 客户评论卡片 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .review-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }

        .user-avatar-text {
            width: 44px;
            height: 44px;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-weight: 700;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .user-info-name {
            font-weight: 700;
            font-size: 0.95rem;
        }

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

        .review-text {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 17. 加盟代理 */
        .agency-section {
            background: linear-gradient(135deg, #047857 0%, #059669 100%);
            color: #ffffff;
        }

        .agency-content {
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
        }

        .agency-content h2 {
            font-size: 2.2rem;
            margin-bottom: 16px;
        }

        .agency-content p {
            font-size: 1.05rem;
            opacity: 0.9;
            margin-bottom: 30px;
        }

        /* 16. 联系我们 & 页脚 */
        .contact-section {
            background-color: #ffffff;
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .contact-info-list {
            list-style: none;
            margin-top: 20px;
        }

        .contact-info-list li {
            margin-bottom: 16px;
            font-size: 0.95rem;
            color: var(--text-dark);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .qr-box {
            display: inline-block;
            padding: 12px;
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-top: 15px;
            text-align: center;
        }

        .qr-box img {
            width: 140px;
            height: 140px;
            object-fit: contain;
            display: block;
            margin-bottom: 6px;
        }

        .qr-label {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Footer 对齐 */
        .site-footer {
            background-color: #0f172a;
            color: #94a3b8;
            padding: 50px 0 25px;
            font-size: 0.88rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 30px;
            margin-bottom: 40px;
        }

        .footer-col h5 {
            color: #ffffff;
            font-size: 1rem;
            margin-bottom: 16px;
        }

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

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

        .footer-links li a {
            color: #94a3b8;
            text-decoration: none;
            transition: color 0.2s;
        }

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

        .friendship-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 10px;
        }

        .friendship-links a {
            color: #94a3b8;
            text-decoration: none;
            font-size: 0.85rem;
        }

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

        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 25px;
            text-align: center;
            color: #64748b;
            font-size: 0.82rem;
        }

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

        .float-btn {
            width: 50px;
            height: 50px;
            background: var(--primary);
            color: #ffffff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
            text-decoration: none;
            font-size: 1.2rem;
            transition: transform 0.25s ease;
        }

        .float-btn:hover {
            transform: scale(1.1);
        }

        /* 响应式支持 */
        @media (max-width: 992px) {
            .hero-stats { grid-template-columns: repeat(2, 1fr); }
            .about-grid, .contact-grid, .help-grid { grid-template-columns: 1fr; }
            .scenarios-grid, .cases-grid, .reviews-grid, .token-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
            .process-steps { grid-template-columns: repeat(3, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            h1.hero-title { font-size: 2.2rem; }
        }

        @media (max-width: 768px) {
            .nav-links { display: none; }
            .nav-links.mobile-open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: #ffffff;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-md);
                padding: 10px 0;
            }
            .mobile-menu-btn { display: block; }
            .hero-stats { grid-template-columns: 1fr; }
            .scenarios-grid, .cases-grid, .reviews-grid, .token-grid, .news-grid, .solutions-grid { grid-template-columns: 1fr; }
            .process-steps { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
            .banner-row { grid-template-columns: 1fr; }
        }