/* 极致鲜亮风全局样式定义 */
        :root {
            --primary: #0052ff;
            --primary-light: #00f2fe;
            --secondary: #7000ff;
            --accent: #ff007a;
            --neutral-dark: #0f172a;
            --neutral-light: #f8fafc;
            --neutral-muted: #64748b;
            --white: #ffffff;
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 极致鲜亮风背景修饰 - 页面连贯性 */
        .decor-blob {
            position: absolute;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            filter: blur(120px);
            opacity: 0.15;
            z-index: -1;
            pointer-events: none;
        }
        .decor-blob-1 { top: 10%; left: -100px; background: var(--primary-light); }
        .decor-blob-2 { top: 35%; right: -100px; background: var(--secondary); }
        .decor-blob-3 { top: 70%; left: 10%; background: var(--accent); }

        /* 导航栏 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 70px;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            z-index: 1000;
        }

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

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

        .ai-page-logo {
            height: 40px;
            display: block;
        }

        .brand-name {
            font-weight: 800;
            font-size: 1.25rem;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        .nav-menu a {
            text-decoration: none;
            color: var(--neutral-muted);
            font-weight: 500;
            font-size: 0.9rem;
            transition: var(--transition);
        }

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

        .nav-btn-group {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 18px;
            border-radius: 50px;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
            cursor: pointer;
            font-size: 0.9rem;
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--white);
            box-shadow: 0 4px 15px rgba(0, 82, 255, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 82, 255, 0.4);
        }

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

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

        /* 移动端菜单开关 */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            background: none;
            border: none;
            cursor: pointer;
        }

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

        /* 首屏 Hero Section - 纯CSS无图 */
        .hero {
            padding: 160px 0 100px;
            position: relative;
            background: radial-gradient(circle at 80% 20%, rgba(0, 242, 254, 0.05) 0%, transparent 50%),
                        radial-gradient(circle at 10% 80%, rgba(112, 0, 255, 0.05) 0%, transparent 50%);
            text-align: center;
        }

        .hero-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(0, 82, 255, 0.08);
            color: var(--primary);
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.85rem;
            margin-bottom: 24px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .hero h1 {
            font-size: clamp(2rem, 5vw, 3.5rem);
            line-height: 1.2;
            color: var(--neutral-dark);
            margin-bottom: 24px;
            font-weight: 800;
        }

        .hero h1 span {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: clamp(1rem, 2vw, 1.25rem);
            color: var(--neutral-muted);
            max-width: 800px;
            margin: 0 auto 40px;
        }

        .hero-action {
            display: flex;
            justify-content: center;
            gap: 15px;
            flex-wrap: wrap;
        }

        .hero-action .btn {
            padding: 14px 32px;
            font-size: 1rem;
        }

        /* 数据指标卡片 */
        .stats-section {
            padding: 40px 0;
            background: var(--neutral-light);
            border-top: 1px solid rgba(0, 0, 0, 0.03);
            border-bottom: 1px solid rgba(0, 0, 0, 0.03);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 30px;
            text-align: center;
        }

        .stat-card {
            padding: 20px;
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 5px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .stat-label {
            font-size: 0.95rem;
            color: var(--neutral-muted);
            font-weight: 500;
        }

        /* 页面区块通用设计 */
        section {
            padding: 80px 0;
            position: relative;
        }

        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 50px;
        }

        .section-header h2 {
            font-size: 2.25rem;
            font-weight: 800;
            margin-bottom: 15px;
            color: var(--neutral-dark);
        }

        .section-header p {
            color: var(--neutral-muted);
            font-size: 1.05rem;
        }

        /* 关于我们与平台介绍 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 1.75rem;
            margin-bottom: 20px;
            color: var(--neutral-dark);
        }

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

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

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

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

        .about-feature-item p {
            font-size: 0.85rem;
            margin: 0;
        }

        /* AIGC服务 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .service-card {
            background: var(--white);
            border: 1px solid rgba(0, 0, 0, 0.05);
            border-radius: 16px;
            padding: 30px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0;
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 35px rgba(0, 82, 255, 0.1);
        }

        .service-card:hover::before {
            opacity: 1;
        }

        .service-icon {
            font-size: 2.5rem;
            margin-bottom: 20px;
            display: inline-block;
        }

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

        .service-card p {
            color: var(--neutral-muted);
            font-size: 0.9rem;
            margin-bottom: 20px;
        }

        .model-list-span {
            font-size: 0.75rem;
            background-color: var(--neutral-light);
            color: var(--primary);
            padding: 4px 8px;
            border-radius: 4px;
            display: inline-block;
            margin: 3px;
        }

        /* 一站式制作场景 */
        .scenes-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .scene-card {
            background: linear-gradient(180deg, var(--white), var(--neutral-light));
            border: 1px solid rgba(0,0,0,0.03);
            border-radius: 12px;
            padding: 24px;
            text-align: center;
            transition: var(--transition);
        }

        .scene-card:hover {
            border-color: var(--primary);
            transform: scale(1.03);
        }

        .scene-icon {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: rgba(0, 82, 255, 0.05);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 15px;
            font-weight: bold;
        }

        /* 行业解决方案与大卡片 */
        .solutions-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .solution-item {
            background-color: var(--neutral-light);
            padding: 40px;
            border-radius: 20px;
            border: 1px solid rgba(0, 0, 0, 0.02);
            transition: var(--transition);
        }

        .solution-item:hover {
            box-shadow: 0 10px 30px rgba(112, 0, 255, 0.05);
        }

        .solution-item h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
        }

        .solution-item ul {
            list-style-type: none;
            margin-top: 15px;
        }

        .solution-item li {
            padding-left: 20px;
            position: relative;
            margin-bottom: 8px;
            font-size: 0.9rem;
            color: var(--neutral-muted);
        }

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

        /* 标准化流程 & 时间线 */
        .timeline {
            display: flex;
            flex-direction: column;
            max-width: 800px;
            margin: 0 auto;
            position: relative;
        }

        .timeline::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            left: 50%;
            width: 2px;
            background-color: rgba(0, 82, 255, 0.15);
            transform: translateX(-50%);
        }

        .timeline-item {
            display: flex;
            justify-content: flex-end;
            padding-right: 50%;
            position: relative;
            margin-bottom: 40px;
        }

        .timeline-item:nth-child(even) {
            justify-content: flex-start;
            padding-right: 0;
            padding-left: 50%;
        }

        .timeline-badge {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--white);
            position: absolute;
            left: 50%;
            transform: translate(-50%, 0);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 0.9rem;
            z-index: 2;
        }

        .timeline-content {
            background-color: var(--neutral-light);
            padding: 24px;
            border-radius: 12px;
            width: 85%;
            margin-right: 30px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.02);
        }

        .timeline-item:nth-child(even) .timeline-content {
            margin-right: 0;
            margin-left: 30px;
        }

        /* 案例展示 - 包含宣传图与素材 */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .case-card {
            background-color: var(--white);
            border: 1px solid rgba(0, 0, 0, 0.05);
            border-radius: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.08);
        }

        .case-img-wrap {
            width: 100%;
            height: 200px;
            overflow: hidden;
            background-color: var(--neutral-light);
        }

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

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

        .case-body {
            padding: 20px;
        }

        .case-tag {
            font-size: 0.75rem;
            color: var(--primary);
            font-weight: bold;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 5px;
            display: block;
        }

        .case-body h3 {
            font-size: 1.15rem;
            margin-bottom: 10px;
        }

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

        /* 对比评测表格 */
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border-radius: 12px;
            border: 1px solid rgba(0, 0, 0, 0.05);
            box-shadow: 0 4px 20px rgba(0,0,0,0.02);
            background-color: var(--white);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 800px;
        }

        .compare-table th, .compare-table td {
            padding: 16px 24px;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        }

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

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

        .compare-table tr.highlight {
            background-color: rgba(0, 82, 255, 0.02);
        }

        .compare-table tr.highlight td:first-child {
            border-left: 4px solid var(--primary);
        }

        .compare-score {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--accent);
        }

        .rating-star {
            color: #ffb800;
            font-size: 1.2rem;
        }

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

        .token-box {
            background-color: var(--neutral-light);
            padding: 30px;
            border-radius: 16px;
        }

        /* 培训业务（职业 & AI 培训） */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .training-card {
            background: var(--white);
            border: 1px solid rgba(0,0,0,0.05);
            border-radius: 16px;
            padding: 30px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.02);
            transition: var(--transition);
        }

        .training-card:hover {
            box-shadow: 0 12px 30px rgba(0,82,255,0.08);
            transform: translateY(-3px);
        }

        .training-card h3 {
            font-size: 1.3rem;
            color: var(--neutral-dark);
            margin-bottom: 15px;
            border-bottom: 2px solid var(--primary);
            padding-bottom: 10px;
            display: inline-block;
        }

        .training-card ul {
            list-style: none;
            margin-top: 15px;
        }

        .training-card li {
            padding: 10px 0;
            border-bottom: 1px dashed rgba(0,0,0,0.05);
            font-size: 0.95rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .training-card li:last-child {
            border-bottom: none;
        }

        .badge-cert {
            background-color: rgba(112, 0, 255, 0.08);
            color: var(--secondary);
            font-size: 0.75rem;
            padding: 2px 8px;
            border-radius: 10px;
            font-weight: 600;
        }

        /* 客户评论 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .review-card {
            background-color: var(--white);
            border: 1px solid rgba(0,0,0,0.05);
            border-radius: 16px;
            padding: 30px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.01);
            position: relative;
        }

        .review-card::after {
            content: "“";
            font-size: 5rem;
            color: rgba(0, 82, 255, 0.08);
            position: absolute;
            top: 10px;
            right: 20px;
            font-family: Georgia, serif;
            line-height: 1;
        }

        .review-text {
            font-style: italic;
            font-size: 0.95rem;
            color: var(--neutral-dark);
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
        }

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

        .review-avatar-text {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 0.9rem;
        }

        .review-info h4 {
            font-size: 0.9rem;
            color: var(--neutral-dark);
        }

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

        /* 智能需求匹配与表单 */
        .demand-section {
            background: linear-gradient(135deg, rgba(0,82,255,0.02) 0%, rgba(112,0,255,0.02) 100%);
            border-top: 1px solid rgba(0,82,255,0.05);
            border-bottom: 1px solid rgba(0,82,255,0.05);
        }

        .demand-form-container {
            max-width: 700px;
            margin: 0 auto;
            background-color: var(--white);
            border-radius: 20px;
            padding: 40px;
            box-shadow: 0 10px 40px rgba(0, 82, 255, 0.05);
            border: 1px solid rgba(0,0,0,0.03);
        }

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

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

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

        .form-group label {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--neutral-dark);
        }

        .form-control {
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid rgba(0,0,0,0.1);
            font-family: inherit;
            font-size: 0.95rem;
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 82, 255, 0.1);
        }

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

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

        .faq-item {
            border-bottom: 1px solid rgba(0,0,0,0.05);
            padding: 18px 0;
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 10px 0;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            color: var(--neutral-muted);
            font-size: 0.95rem;
            padding-right: 30px;
        }

        .faq-answer.show {
            max-height: 500px;
            padding-top: 10px;
            padding-bottom: 10px;
            transition: max-height 0.3s ease-in-out;
        }

        .faq-icon::after {
            content: '+';
            font-size: 1.5rem;
            font-weight: 300;
            color: var(--primary);
        }

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

        /* 资讯与百科 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .news-card {
            background-color: var(--neutral-light);
            border-radius: 12px;
            padding: 24px;
            border-top: 4px solid var(--primary-light);
            transition: var(--transition);
        }

        .news-card:hover {
            transform: translateY(-4px);
            background-color: var(--white);
            box-shadow: 0 8px 24px rgba(0,0,0,0.05);
        }

        .news-card h3 {
            font-size: 1.1rem;
            margin-bottom: 12px;
        }

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

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

        /* 术语百科标签云 */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-top: 20px;
        }

        .tag-item {
            background-color: var(--neutral-light);
            border: 1px solid rgba(0,0,0,0.05);
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--neutral-muted);
            transition: var(--transition);
            cursor: pointer;
        }

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

        /* 联系我们 & 加盟代理 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 50px;
        }

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

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

        .contact-item-icon {
            font-size: 1.5rem;
            color: var(--primary);
            background-color: rgba(0, 82, 255, 0.05);
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .contact-item-text h4 {
            font-size: 1rem;
            margin-bottom: 5px;
        }

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

        .contact-media {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 20px;
        }

        .media-box {
            background-color: var(--neutral-light);
            border-radius: 12px;
            padding: 20px;
            text-align: center;
        }

        .media-box img {
            max-width: 120px;
            height: auto;
            margin-bottom: 10px;
            border-radius: 8px;
            border: 1px solid rgba(0,0,0,0.05);
        }

        /* 友情链接与页脚 */
        footer {
            background-color: var(--neutral-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 30px;
            font-size: 0.9rem;
        }

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

        .footer-logo img {
            height: 36px;
            margin-bottom: 15px;
            
        }

        .footer-links h4 {
            color: var(--white);
            margin-bottom: 15px;
        }

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

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

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: var(--transition);
        }

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

        .footer-friendly-links {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            margin-bottom: 20px;
        }

        .footer-friendly-links h4 {
            color: var(--white);
            margin-bottom: 10px;
            font-size: 0.9rem;
        }

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

        .friendly-links-wrap a {
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
            font-size: 0.8rem;
            transition: var(--transition);
        }

        .friendly-links-wrap a:hover {
            color: var(--white);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.05);
            padding-top: 20px;
            text-align: center;
            font-size: 0.75rem;
            color: rgba(255,255,255,0.4);
        }

        /* 浮动客服 */
        .floating-kefu {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 999;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--white);
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 20px rgba(0,82,255,0.4);
            cursor: pointer;
            transition: var(--transition);
        }

        .floating-kefu:hover {
            transform: scale(1.1);
        }

        .floating-kefu-panel {
            position: absolute;
            bottom: 70px;
            right: 0;
            width: 200px;
            background-color: var(--white);
            border-radius: 12px;
            box-shadow: 0 8px 30px rgba(0,0,0,0.15);
            padding: 15px;
            text-align: center;
            display: none;
            border: 1px solid rgba(0,0,0,0.05);
        }

        .floating-kefu-panel.show {
            display: block;
        }

        .floating-kefu-panel img {
            width: 100%;
            height: auto;
            border-radius: 6px;
            margin-top: 8px;
        }

        .floating-kefu-panel h4 {
            color: var(--neutral-dark);
            font-size: 0.85rem;
            margin-bottom: 4px;
        }

        .floating-kefu-panel p {
            color: var(--neutral-muted);
            font-size: 0.75rem;
        }

        /* 响应式样式适配 */
        @media (max-width: 992px) {
            .about-grid, .solutions-grid, .token-grid, .contact-grid {
                grid-template-columns: 1fr;
            }
            .timeline::before {
                left: 20px;
            }
            .timeline-item {
                padding-right: 0;
                padding-left: 40px;
                justify-content: flex-start;
            }
            .timeline-item:nth-child(even) {
                padding-left: 40px;
            }
            .timeline-badge {
                left: 20px;
            }
            .timeline-content, .timeline-item:nth-child(even) .timeline-content {
                margin-left: 20px;
                margin-right: 0;
                width: calc(100% - 20px);
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            .nav-menu {
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: var(--white);
                flex-direction: column;
                padding: 20px;
                gap: 15px;
                border-bottom: 1px solid rgba(0,0,0,0.05);
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                transform: translateY(-150%);
                opacity: 0;
                transition: var(--transition);
                pointer-events: none;
            }
            .nav-menu.active {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-btn-group {
                display: none;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .form-full {
                grid-column: span 1;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }