/* 变量及基础重置 */
        :root {
            --primary: #00bfa5;
            --primary-light: #e8f8f5;
            --primary-dark: #008e7a;
            --text-dark: #1e293b;
            --text-muted: #64748b;
            --bg-light: #f7fdfb;
            --bg-white: #ffffff;
            --border-color: #e2e8f0;
            --shadow-sm: 0 2px 4px rgba(0, 191, 165, 0.05);
            --shadow-md: 0 10px 15px -3px rgba(0, 191, 165, 0.1);
            --shadow-lg: 0 20px 25px -5px rgba(0, 191, 165, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }

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

        body {
            font-family: var(--font);
            color: var(--text-dark);
            background-color: var(--bg-light);
            line-height: 1.6;
            overflow-x: hidden;
        }

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

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

        ul, ol {
            list-style: none;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        /* 统一布局容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .section-padding {
            padding: 80px 0;
        }

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

        .section-header h2 {
            font-size: 2rem;
            color: var(--text-dark);
            position: relative;
            display: inline-block;
            padding-bottom: 15px;
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--primary-dark));
            border-radius: 2px;
        }

        .section-header p {
            color: var(--text-muted);
            margin-top: 15px;
            font-size: 1.1rem;
        }

        /* 按钮样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(0, 191, 165, 0.4);
        }

        .btn-primary:hover {
            background-color: var(--primary-dark);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 191, 165, 0.5);
        }

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

        .btn-outline:hover {
            background-color: var(--primary-light);
            transform: translateY(-2px);
        }

        /* 顶部导航 */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: var(--shadow-sm);
            z-index: 1000;
            transition: var(--transition);
        }

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

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

        .logo-area img {
            height: 40px;
            width: auto;
        }

        .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-dark);
            background: linear-gradient(135deg, var(--text-dark), var(--primary-dark));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        .nav-item {
            color: var(--text-dark);
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 4px;
        }

        .nav-item:hover, .nav-item.active {
            color: var(--primary-dark);
            background-color: var(--primary-light);
        }

        .nav-btn {
            margin-left: 15px;
        }

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

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--text-dark);
            border-radius: 2px;
            transition: var(--transition);
        }

        /* 首屏 Hero (无图) */
        .hero {
            padding: 160px 0 100px;
            background: radial-gradient(circle at 80% 20%, var(--primary-light) 0%, rgba(255, 255, 255, 0) 50%),
                        linear-gradient(180deg, #f7fdfb 0%, #ffffff 100%);
            text-align: center;
            position: relative;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 10%;
            left: 5%;
            width: 150px;
            height: 150px;
            background-color: rgba(0, 191, 165, 0.05);
            border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
            animation: morph 8s ease-in-out infinite;
            z-index: 1;
        }

        @keyframes morph {
            0%, 100% { border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; }
            50% { border-radius: 70% 30% 30% 70% / 70% 70% 30% 30%; }
        }

        .hero h1 {
            font-size: 3rem;
            line-height: 1.25;
            margin-bottom: 24px;
            color: var(--text-dark);
            z-index: 2;
            position: relative;
        }

        .hero h1 span {
            color: var(--primary-dark);
            position: relative;
        }

        .hero p.lead {
            font-size: 1.25rem;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 40px;
            z-index: 2;
            position: relative;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 50px;
            z-index: 2;
            position: relative;
        }

        .hero-features {
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
            margin-top: 30px;
            z-index: 2;
            position: relative;
        }

        .hero-feature-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 500;
            color: var(--text-dark);
        }

        .hero-feature-item svg {
            width: 20px;
            height: 20px;
            color: var(--primary);
        }

        /* 数据指标卡片 */
        .stats {
            background-color: var(--bg-white);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: 40px 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
        }

        .stat-item h3 {
            font-size: 2.5rem;
            color: var(--primary-dark);
            margin-bottom: 5px;
        }

        .stat-item p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* 关于我们 & 软件介绍 */
        .about-section {
            background-color: var(--bg-white);
        }

        .about-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--text-dark);
        }

        .about-text p {
            color: var(--text-muted);
            margin-bottom: 15px;
            font-size: 1.05rem;
        }

        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 30px;
        }

        .about-feature-card {
            background-color: var(--bg-light);
            padding: 20px;
            border-radius: 12px;
            border-left: 4px solid var(--primary);
        }

        .about-feature-card h4 {
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .about-feature-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        .about-media {
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        /* 全平台 AIGC 服务体系 */
        .services-section {
            background-color: var(--bg-light);
        }

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

        .service-card {
            background-color: var(--bg-white);
            border-radius: 16px;
            padding: 40px 30px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-color);
        }

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

        .service-icon {
            width: 60px;
            height: 60px;
            border-radius: 12px;
            background-color: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 25px;
        }

        .service-icon svg {
            width: 30px;
            height: 30px;
        }

        .service-card h3 {
            font-size: 1.35rem;
            margin-bottom: 15px;
            color: var(--text-dark);
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 20px;
        }

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

        .service-tag {
            font-size: 0.8rem;
            background-color: var(--bg-light);
            color: var(--primary-dark);
            padding: 4px 10px;
            border-radius: 20px;
            border: 1px solid rgba(0, 191, 165, 0.2);
        }

        /* 全自动 AIGC 制作流程 / 步骤 */
        .workflow-section {
            background-color: var(--bg-white);
        }

        .workflow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            position: relative;
        }

        .workflow-step {
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .step-number {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            background-color: var(--primary);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 700;
            margin: 0 auto 20px;
            box-shadow: 0 4px 10px rgba(0, 191, 165, 0.3);
            border: 4px solid var(--bg-white);
        }

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

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

        /* 全行业解决方案 */
        .solutions-section {
            background-color: var(--bg-light);
        }

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

        .solution-card {
            background-color: var(--bg-white);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

        .solution-img-holder {
            height: 200px;
            background-color: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .solution-icon-abs {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background-color: #ffffff;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            position: absolute;
            bottom: -30px;
            right: 30px;
            box-shadow: var(--shadow-md);
        }

        .solution-icon-abs svg {
            width: 28px;
            height: 28px;
        }

        .solution-body {
            padding: 40px 30px 30px;
        }

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

        .solution-body p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* 全国服务网络 */
        .network-section {
            background-color: var(--bg-white);
        }

        .network-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 60px;
            align-items: center;
        }

        .network-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--text-dark);
        }

        .network-text p {
            color: var(--text-muted);
            margin-bottom: 30px;
        }

        .network-regions {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 15px;
        }

        .region-tag {
            background-color: var(--bg-light);
            border: 1px solid var(--border-color);
            padding: 10px 15px;
            border-radius: 8px;
            text-align: center;
            font-weight: 500;
        }

        .network-visual {
            background-color: var(--bg-light);
            border-radius: 16px;
            padding: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 350px;
            border: 1px dashed var(--primary);
        }

        /* 技术标准 */
        .tech-standards {
            background-color: var(--bg-light);
        }

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

        .standard-card {
            background-color: var(--bg-white);
            border-radius: 12px;
            padding: 30px;
            border-top: 4px solid var(--primary);
            box-shadow: var(--shadow-sm);
        }

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

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

        /* 案例中心 */
        .cases-section {
            background-color: var(--bg-white);
        }

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

        .case-card {
            border-radius: 16px;
            overflow: hidden;
            background-color: var(--bg-white);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

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

        .case-image {
            height: 240px;
            overflow: hidden;
            position: relative;
        }

        .case-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

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

        .case-tag {
            position: absolute;
            top: 15px;
            left: 15px;
            background-color: var(--primary);
            color: #ffffff;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .case-info {
            padding: 25px;
        }

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

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

        /* 对比评测 */
        .evaluation-section {
            background-color: var(--bg-light);
        }

        .eval-container {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 50px;
            align-items: center;
        }

        .eval-score-card {
            background-color: var(--bg-white);
            border-radius: 20px;
            padding: 40px;
            text-align: center;
            box-shadow: var(--shadow-md);
            border: 2px solid var(--primary);
        }

        .eval-score-card h3 {
            font-size: 1.4rem;
            color: var(--text-dark);
            margin-bottom: 20px;
        }

        .score-num {
            font-size: 4rem;
            font-weight: 800;
            color: var(--primary-dark);
            line-height: 1;
            margin-bottom: 10px;
        }

        .score-star {
            color: #f59e0b;
            font-size: 1.5rem;
            margin-bottom: 15px;
        }

        .eval-table-wrapper {
            background-color: var(--bg-white);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }

        .eval-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
        }

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

        .eval-table th {
            background-color: var(--primary-light);
            color: var(--primary-dark);
            font-weight: 600;
        }

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

        .eval-table td strong {
            color: var(--primary-dark);
        }

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

        .token-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 50px;
        }

        .token-table-wrapper {
            background-color: var(--bg-light);
            border-radius: 16px;
            padding: 25px;
            border: 1px solid var(--border-color);
        }

        .token-intro h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--text-dark);
        }

        .token-intro p {
            color: var(--text-muted);
            margin-bottom: 25px;
        }

        .price-alert-box {
            background-color: var(--primary-light);
            border-left: 4px solid var(--primary);
            padding: 20px;
            border-radius: 8px;
            margin-top: 30px;
        }

        /* 培训中心 */
        .training-section {
            background-color: var(--bg-light);
        }

        .training-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
        }

        .training-card {
            background-color: var(--bg-white);
            border-radius: 16px;
            padding: 40px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }

        .training-card h3 {
            font-size: 1.6rem;
            color: var(--primary-dark);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .training-list li {
            position: relative;
            padding-left: 24px;
            margin-bottom: 15px;
            color: var(--text-dark);
            font-weight: 500;
        }

        .training-list li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: bold;
        }

        /* 客户评论 */
        .reviews-section {
            background-color: var(--bg-white);
        }

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

        .review-card {
            background-color: var(--bg-light);
            border-radius: 16px;
            padding: 30px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            position: relative;
        }

        .review-text {
            font-style: italic;
            color: var(--text-dark);
            margin-bottom: 20px;
            font-size: 0.95rem;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .user-info h4 {
            font-size: 1rem;
            color: var(--text-dark);
        }

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

        /* 常见问题 FAQ */
        .faq-section {
            background-color: var(--bg-light);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: var(--bg-white);
            border-radius: 8px;
            margin-bottom: 15px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            border: 1px solid var(--border-color);
        }

        .faq-question {
            padding: 20px 25px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            color: var(--text-dark);
            user-select: none;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background-color: var(--bg-white);
            border-top: 0 solid var(--border-color);
        }

        .faq-answer-inner {
            padding: 20px 25px;
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .faq-item.active .faq-answer {
            max-height: 500px;
            border-top: 1px solid var(--border-color);
        }

        .faq-icon {
            transition: transform 0.3s;
        }

        .faq-item.active .faq-icon {
            transform: rotate(180deg);
        }

        /* 术语与自助排查 */
        .glossary-section {
            background-color: var(--bg-white);
        }

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

        .glossary-box h3 {
            font-size: 1.4rem;
            color: var(--text-dark);
            margin-bottom: 20px;
            border-left: 4px solid var(--primary);
            padding-left: 12px;
        }

        .term-list dt {
            font-weight: 600;
            color: var(--primary-dark);
            margin-top: 15px;
        }

        .term-list dd {
            color: var(--text-muted);
            margin-bottom: 10px;
            font-size: 0.9rem;
        }

        /* 行业资讯 / 知识库 */
        .articles-section {
            background-color: var(--bg-light);
        }

        .articles-container {
            max-width: 800px;
            margin: 0 auto;
            background-color: var(--bg-white);
            border-radius: 16px;
            padding: 40px;
            box-shadow: var(--shadow-sm);
        }

        .article-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .article-item {
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .article-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .article-title {
            font-weight: 600;
            color: var(--text-dark);
            font-size: 1.05rem;
        }

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

        /* 智能需求匹配 (表单) & 联系我们 */
        .contact-section {
            background-color: var(--bg-white);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 60px;
        }

        .form-wrapper {
            background-color: var(--bg-light);
            border-radius: 20px;
            padding: 40px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            color: var(--text-dark);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            background-color: #ffffff;
            color: var(--text-dark);
            font-size: 0.95rem;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(0, 191, 165, 0.1);
        }

        .contact-info-panel {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }

        .info-card {
            display: flex;
            gap: 20px;
        }

        .info-icon {
            width: 50px;
            height: 50px;
            border-radius: 10px;
            background-color: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .info-icon svg {
            width: 24px;
            height: 24px;
        }

        .info-text h4 {
            font-size: 1.1rem;
            color: var(--text-dark);
            margin-bottom: 5px;
        }

        .info-text p, .info-text a {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .qrcode-area {
            display: flex;
            gap: 30px;
            margin-top: 20px;
        }

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

        .qrcode-box img {
            width: 120px;
            height: 120px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            margin-bottom: 8px;
        }

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

        /* 友情链接与页脚 */
        .footer {
            background-color: #1a2a26;
            color: #e2e8f0;
            padding: 60px 0 30px;
        }

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

        .footer-brand h3 {
            color: #ffffff;
            margin-bottom: 15px;
            font-size: 1.4rem;
        }

        .footer-brand p {
            color: #a0aec0;
            font-size: 0.9rem;
            max-width: 350px;
        }

        .footer-links h4 {
            color: #ffffff;
            margin-bottom: 15px;
            font-size: 1.1rem;
        }

        .footer-links ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: #cbd5e0;
            font-size: 0.9rem;
        }

        .footer-links a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid #2d3748;
            padding-top: 30px;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            font-size: 0.85rem;
            color: #a0aec0;
        }

        .friend-links a {
            color: #cbd5e0;
        }

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

        .copyright-area {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: #a0aec0;
        }

        /* 浮动组件 */
        .float-widget {
            position: fixed;
            right: 20px;
            bottom: 40px;
            display: flex;
            flex-direction: column;
            gap: 15px;
            z-index: 999;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--bg-white);
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-dark);
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid var(--border-color);
            position: relative;
        }

        .float-btn:hover {
            background-color: var(--primary-light);
            color: var(--primary-dark);
            transform: scale(1.05);
        }

        .float-btn-primary {
            background-color: var(--primary);
            color: #ffffff;
            border: none;
        }

        .float-btn-primary:hover {
            background-color: var(--primary-dark);
            color: #ffffff;
        }

        .float-qr-pop {
            position: absolute;
            bottom: 0;
            right: 65px;
            background-color: var(--bg-white);
            border-radius: 12px;
            padding: 15px;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-color);
            display: none;
            text-align: center;
        }

        .float-qr-pop img {
            width: 120px;
            height: 120px;
            margin-bottom: 5px;
        }

        .float-qr-pop p {
            font-size: 0.75rem;
            color: var(--text-dark);
            white-space: nowrap;
        }

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

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .hero h1 { font-size: 2.5rem; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .services-grid, .solutions-grid, .cases-grid, .reviews-grid { grid-template-columns: repeat(2, 1fr); }
            .about-content, .network-grid, .eval-container, .token-grid, .contact-grid, .glossary-grid { grid-template-columns: 1fr; }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--bg-white);
                flex-direction: column;
                padding: 20px;
                box-shadow: var(--shadow-md);
                border-top: 1px solid var(--border-color);
            }
            .nav-menu.show {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .hero h1 { font-size: 2rem; }
            .hero-btns { flex-direction: column; align-items: center; }
            .workflow-steps { grid-template-columns: 1fr; }
            .services-grid, .solutions-grid, .cases-grid, .reviews-grid, .stats-grid, .training-grid, .standards-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
            .copyright-area { flex-direction: column; gap: 10px; text-align: center; }
        }