/* 基础重置 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #7000FF;
            --secondary: #00F2FE;
            --accent: #FF007F;
            --dark: #0f172a;
            --light: #f8fafc;
            --gray: #e2e8f0;
            --text-dark: #1e293b;
            --text-muted: #64748b;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--light);
            color: var(--text-dark);
            line-height: 1.6;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        ul {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        /* 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-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--dark);
            position: relative;
            display: inline-block;
            margin-bottom: 15px;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 2px;
        }
        .section-desc {
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
            font-size: 1rem;
        }

        /* 顶部导航 */
        header {
            background-color: rgba(15, 23, 42, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .ai-page-logo {
            height: 40px;
            width: auto;
        }
        .logo-text {
            color: #fff;
            font-weight: 800;
            font-size: 1.2rem;
            letter-spacing: 1px;
            background: linear-gradient(45deg, #00F2FE, #FF007F);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .nav-link {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.95rem;
            font-weight: 500;
        }
        .nav-link:hover {
            color: var(--secondary);
        }
        .nav-btn {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: white;
            padding: 8px 20px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            box-shadow: 0 4px 15px rgba(112, 0, 255, 0.4);
        }
        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(112, 0, 255, 0.6);
        }
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
        }
        .menu-toggle span {
            width: 25px;
            height: 3px;
            background-color: white;
            border-radius: 2px;
            transition: var(--transition);
        }

        /* Hero首屏 - 严禁图片，高饱和艳彩风 */
        .hero {
            background: radial-gradient(circle at 90% 10%, rgba(112, 0, 255, 0.15) 0%, transparent 60%),
                        radial-gradient(circle at 10% 90%, rgba(0, 242, 254, 0.15) 0%, transparent 60%),
                        var(--dark);
            color: white;
            padding: 120px 0 100px;
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
                        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
            background-size: 40px 40px;
            pointer-events: none;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: var(--secondary);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 25px;
            letter-spacing: 1px;
            animation: pulse 2s infinite;
        }
        .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.25;
            max-width: 850px;
            margin: 0 auto 20px;
            background: linear-gradient(135deg, #fff 30%, #00F2FE 70%, #FF007F 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 650px;
            margin: 0 auto 40px;
        }
        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: white;
            padding: 14px 35px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            box-shadow: 0 10px 25px rgba(112, 0, 255, 0.4);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(112, 0, 255, 0.6);
        }
        .btn-secondary {
            background: rgba(255, 255, 255, 0.1);
            border: 1.5px solid rgba(255, 255, 255, 0.3);
            color: white;
            padding: 13px 35px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: white;
        }

        /* 数据指标卡片 */
        .stats-section {
            margin-top: -50px;
            position: relative;
            z-index: 10;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: white;
            border-radius: 16px;
            padding: 30px 20px;
            text-align: center;
            box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
            border-bottom: 4px solid var(--primary);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(15, 23, 42, 0.12);
        }
        .stat-card:nth-child(2n) {
            border-bottom-color: var(--secondary);
        }
        .stat-card:nth-child(3n) {
            border-bottom-color: var(--accent);
        }
        .stat-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 5px;
        }
        .stat-num span {
            color: var(--primary);
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 600;
        }

        /* 关于我们与软件介绍 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .about-content h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--dark);
        }
        .about-text {
            color: var(--text-muted);
            margin-bottom: 25px;
            font-size: 1.05rem;
        }
        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }
        .about-feature-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            color: var(--dark);
        }
        .about-feature-item span {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--secondary);
        }
        .about-image-box {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 24px;
            padding: 30px;
            color: white;
            box-shadow: 0 20px 40px rgba(112, 0, 255, 0.2);
        }
        .about-image-box h4 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            font-weight: 800;
        }
        .about-image-box p {
            font-size: 0.95rem;
            opacity: 0.9;
            margin-bottom: 20px;
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud span {
            background: rgba(255, 255, 255, 0.2);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        /* 全平台AIGC服务体系与支持模型 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .service-card {
            background: white;
            border-radius: 20px;
            padding: 40px 30px;
            border: 1px solid var(--gray);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0;
            transition: var(--transition);
        }
        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.05);
            border-color: transparent;
        }
        .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;
            font-weight: 800;
            margin-bottom: 15px;
            color: var(--dark);
        }
        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 20px;
        }
        .model-list-wrapper {
            margin-top: 50px;
            background: #fff;
            padding: 30px;
            border-radius: 20px;
            box-shadow: 0 5px 25px rgba(0,0,0,0.02);
        }
        .model-list-title {
            text-align: center;
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 20px;
        }
        .model-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }
        .model-tag {
            background: var(--light);
            border: 1px solid var(--gray);
            padding: 6px 15px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-dark);
            transition: var(--transition);
        }
        .model-tag:hover {
            background: var(--primary);
            color: white;
            border-color: var(--primary);
        }

        /* 全自动AIGC制作流程与标准化全流程 */
        .process-bg {
            background-color: var(--dark);
            color: white;
        }
        .process-bg .section-title {
            color: white;
        }
        .process-timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        .process-step {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 30px;
            border-radius: 16px;
            position: relative;
        }
        .step-num {
            position: absolute;
            top: 20px;
            right: 20px;
            font-size: 3rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--secondary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            opacity: 0.3;
        }
        .process-step h4 {
            font-size: 1.2rem;
            margin-bottom: 15px;
            font-weight: 700;
            color: #fff;
        }
        .process-step p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
        }

        /* 解决方案与网络 */
        .solution-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .solution-card {
            background: white;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            border: 1px solid var(--gray);
        }
        .solution-body {
            padding: 30px;
        }
        .solution-tag {
            background: rgba(112, 0, 255, 0.1);
            color: var(--primary);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 700;
            display: inline-block;
            margin-bottom: 15px;
        }
        .solution-body h4 {
            font-size: 1.25rem;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .solution-body p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .network-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            margin-top: 50px;
        }
        .network-content h4 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            font-weight: 700;
        }
        .network-list {
            margin-top: 20px;
        }
        .network-item {
            display: flex;
            align-items: center;
            gap: 15px;
            padding: 12px 0;
            border-bottom: 1px solid var(--gray);
        }
        .network-item strong {
            color: var(--primary);
            min-width: 80px;
        }

        /* 技术标准 */
        .standards-container {
            background: linear-gradient(135deg, #1e1b4b, #311042);
            color: white;
            border-radius: 24px;
            padding: 50px;
            margin-top: 40px;
        }
        .standards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .standard-item h4 {
            font-size: 1.25rem;
            margin-bottom: 15px;
            color: var(--secondary);
            font-weight: 700;
        }
        .standard-item p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.8);
        }

        /* 客户案例中心 & 软件宣传图 */
        .case-section {
            background-color: var(--light);
        }
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .case-card {
            background: white;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            transition: var(--transition);
        }
        .case-card:hover {
            transform: translateY(-5px);
        }
        .case-img-box {
            overflow: hidden;
            aspect-ratio: 16/9;
            background: #eaeaea;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .case-body {
            padding: 20px;
        }
        .case-client {
            font-size: 0.8rem;
            color: var(--accent);
            font-weight: 700;
            text-transform: uppercase;
            margin-bottom: 5px;
        }
        .case-body h4 {
            font-size: 1.1rem;
            margin-bottom: 10px;
            color: var(--dark);
        }
        .case-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .showcase-banner-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 50px;
        }
        .banner-item {
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0,0,0,0.08);
        }
        .banner-item img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        /* 对比评测 - 突出 9.9分 与 五星推荐 */
        .rating-box {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: white;
            padding: 40px;
            border-radius: 24px;
            text-align: center;
            margin-bottom: 50px;
            box-shadow: 0 20px 40px rgba(112, 0, 255, 0.3);
        }
        .rating-stars {
            font-size: 2.5rem;
            color: #ffd700;
            margin-bottom: 15px;
            letter-spacing: 5px;
        }
        .rating-score {
            font-size: 4rem;
            font-weight: 900;
            line-height: 1;
            margin-bottom: 10px;
        }
        .rating-score span {
            font-size: 1.5rem;
            opacity: 0.8;
        }
        .rating-desc {
            font-size: 1.2rem;
            font-weight: 700;
        }
        .comparison-table-wrapper {
            background: white;
            border-radius: 20px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            overflow-x: auto;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
        }
        th, td {
            padding: 18px;
            border-bottom: 1px solid var(--gray);
            font-size: 0.95rem;
        }
        th {
            background-color: var(--light);
            font-weight: 800;
            color: var(--dark);
        }
        tr:hover td {
            background-color: rgba(112, 0, 255, 0.02);
        }
        .highlight-col {
            color: var(--primary);
            font-weight: 700;
            background-color: rgba(112, 0, 255, 0.04);
        }

        /* Token比价参考 */
        .token-pricing {
            background-color: var(--dark);
            color: white;
        }
        .token-pricing .section-title {
            color: white;
        }
        .token-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .token-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 40px 30px;
            text-align: center;
            transition: var(--transition);
        }
        .token-card:hover {
            transform: scale(1.03);
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--secondary);
        }
        .token-card.featured {
            border-color: var(--primary);
            background: linear-gradient(180deg, rgba(112, 0, 255, 0.1) 0%, rgba(0, 0, 0, 0) 100%);
            position: relative;
        }
        .token-card.featured::after {
            content: '最佳性价比';
            position: absolute;
            top: 15px;
            right: 15px;
            background: var(--accent);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 10px;
        }
        .token-name {
            font-size: 1.4rem;
            font-weight: 800;
            margin-bottom: 10px;
        }
        .token-price {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--secondary);
            margin-bottom: 20px;
        }
        .token-price span {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
        }
        .token-features {
            margin-bottom: 30px;
        }
        .token-features li {
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.8);
        }

        /* 培训体系 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
        }
        .training-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .training-item {
            background: white;
            border-radius: 12px;
            padding: 20px;
            border-left: 5px solid var(--primary);
            box-shadow: 0 4px 15px rgba(0,0,0,0.03);
        }
        .training-item h4 {
            font-size: 1.15rem;
            font-weight: 800;
            margin-bottom: 8px;
            color: var(--dark);
        }
        .training-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 帮助中心与FAQ */
        .help-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .faq-item {
            background: white;
            border-radius: 12px;
            border: 1px solid var(--gray);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-trigger {
            width: 100%;
            padding: 20px;
            text-align: left;
            background: none;
            border: none;
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .faq-trigger::after {
            content: '+';
            font-size: 1.2rem;
            color: var(--primary);
            font-weight: 800;
        }
        .faq-item.active .faq-trigger::after {
            content: '-';
        }
        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            background-color: var(--light);
        }
        .faq-content p {
            padding: 20px;
            font-size: 0.9rem;
            color: var(--text-muted);
            border-top: 1px solid var(--gray);
        }
        .faq-item.active .faq-content {
            max-height: 500px;
            transition: max-height 0.3s cubic-bezier(1, 0, 1, 0);
        }

        /* 自助排查与术语百科 */
        .wiki-card {
            background: white;
            padding: 35px;
            border-radius: 20px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.03);
            border: 1px solid var(--gray);
        }
        .wiki-card h3 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            color: var(--dark);
            border-bottom: 2px solid var(--primary);
            padding-bottom: 10px;
        }
        .wiki-list dt {
            font-weight: 700;
            color: var(--primary);
            margin-top: 15px;
        }
        .wiki-list dd {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-left: 0;
            margin-bottom: 10px;
        }

        /* 客户评论 */
        .comments-section {
            background-color: var(--light);
        }
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .comment-card {
            background: white;
            padding: 30px;
            border-radius: 16px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.03);
            border: 1px solid var(--gray);
            position: relative;
        }
        .comment-text {
            font-size: 0.95rem;
            color: var(--text-dark);
            margin-bottom: 20px;
            font-style: italic;
        }
        .comment-user {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        .user-avatar-placeholder {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 0.9rem;
        }
        .user-info h5 {
            font-size: 0.9rem;
            color: var(--dark);
            font-weight: 800;
        }
        .user-info span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 知识库资讯 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .news-card {
            background: white;
            border-radius: 16px;
            padding: 30px;
            box-shadow: 0 8px 25px rgba(0,0,0,0.03);
            border: 1px solid var(--gray);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .news-card h4 {
            font-size: 1.1rem;
            font-weight: 800;
            margin-bottom: 15px;
            line-height: 1.4;
        }
        .news-card h4 a {
            color: var(--dark);
        }
        .news-card h4 a:hover {
            color: var(--primary);
        }
        .news-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 15px;
        }

        /* 联系我们与表单 (智能需求匹配) */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
        }
        .contact-info {
            background: var(--dark);
            color: white;
            padding: 40px;
            border-radius: 20px;
        }
        .contact-info h3 {
            font-size: 1.5rem;
            margin-bottom: 25px;
            font-weight: 800;
            color: var(--secondary);
        }
        .contact-item {
            margin-bottom: 20px;
        }
        .contact-item label {
            display: block;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
            text-transform: uppercase;
        }
        .contact-item p {
            font-size: 1.1rem;
            font-weight: 600;
        }
        .kefu-qr-wrap {
            margin-top: 30px;
            text-align: center;
            background: rgba(255,255,255,0.05);
            padding: 20px;
            border-radius: 12px;
        }
        .kefu-qr-wrap img {
            width: 150px;
            height: 150px;
            margin: 0 auto 10px;
            border-radius: 8px;
        }
        .form-wrap {
            background: white;
            padding: 40px;
            border-radius: 20px;
            box-shadow: 0 15px 35px rgba(0,0,0,0.05);
            border: 1px solid var(--gray);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--dark);
        }
        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid var(--gray);
            border-radius: 8px;
            background: var(--light);
            font-size: 0.95rem;
            color: var(--text-dark);
            transition: var(--transition);
        }
        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            background: white;
            box-shadow: 0 0 0 4px rgba(112,0,255,0.1);
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }
        .btn-submit {
            width: 100%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: white;
            border: none;
            padding: 15px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            box-shadow: 0 8px 20px rgba(112, 0, 255, 0.3);
            transition: var(--transition);
        }
        .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 25px rgba(112, 0, 255, 0.5);
        }

        /* 友情链接与页脚 */
        footer {
            background-color: var(--dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1.5fr;
            gap: 50px;
            margin-bottom: 40px;
        }
        .footer-logo img {
            height: 45px;
            margin-bottom: 15px;
        }
        .footer-about p {
            font-size: 0.9rem;
            line-height: 1.7;
        }
        .footer-links h5 {
            color: white;
            font-size: 1.1rem;
            margin-bottom: 20px;
            font-weight: 700;
        }
        .footer-links-list li {
            margin-bottom: 10px;
        }
        .footer-links-list a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
        }
        .footer-links-list a:hover {
            color: var(--secondary);
        }
        .friend-links-box {
            grid-column: 1 / -1;
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 25px;
        }
        .friend-links-title {
            color: white;
            font-size: 0.9rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .friend-links-a-list {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }
        .friend-links-a-list a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.85rem;
        }
        .friend-links-a-list a:hover {
            color: var(--secondary);
        }
        .footer-bottom {
            text-align: center;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* 侧边悬浮窗口 */
        .float-bar {
            position: fixed;
            right: 20px;
            bottom: 40px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .float-item {
            width: 50px;
            height: 50px;
            background: white;
            border-radius: 50%;
            box-shadow: 0 4px 15px rgba(0,0,0,0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            position: relative;
        }
        .float-item:hover {
            background: var(--primary);
            color: white;
        }
        .float-item-kefu {
            background: var(--primary);
            color: white;
        }
        .float-item-kefu:hover {
            background: var(--accent);
        }
        .qr-popover {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: white;
            padding: 15px;
            border-radius: 12px;
            box-shadow: 0 8px 25px rgba(0,0,0,0.15);
            display: none;
            text-align: center;
            width: 150px;
        }
        .qr-popover img {
            width: 120px;
            height: 120px;
            margin-bottom: 5px;
        }
        .qr-popover span {
            font-size: 0.75rem;
            color: var(--text-dark);
            font-weight: 700;
        }
        .float-item:hover .qr-popover {
            display: block;
        }

        /* 关键帧动画 */
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }

        /* 响应式样式 */
        @media (max-width: 992px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-grid, .network-grid, .training-grid, .help-container, .contact-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .service-grid, .solution-grid, .case-grid, .token-grid, .comments-grid, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-timeline {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            .nav-menu {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 70px);
                background-color: var(--dark);
                flex-direction: column;
                padding: 40px 20px;
                gap: 30px;
                transition: var(--transition);
            }
            .nav-menu.active {
                left: 0;
            }
            .hero-title {
                font-size: 2rem;
            }
            .stats-grid, .service-grid, .solution-grid, .case-grid, .token-grid, .comments-grid, .news-grid, .process-timeline {
                grid-template-columns: 1fr;
            }
            .standards-grid {
                grid-template-columns: 1fr;
            }
            .showcase-banner-grid {
                grid-template-columns: 1fr;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
        }