:root {
            --primary: #2563eb;
            --secondary: #ff5a00;
            --dark: #0f172a;
            --light: #f8fafc;
            --white: #ffffff;
            --gray: #64748b;
            --border-color: #0f172a;
            --neo-shadow: 4px 4px 0px #0f172a;
            --neo-shadow-hover: 8px 8px 0px #0f172a;
        }

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

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

        a {
            text-decoration: none;
            color: inherit;
        }

        /* 统一页面容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 顶部导航 */
        header {
            background-color: var(--white);
            border-bottom: 3px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 0 rgba(15, 23, 42, 0.05);
        }

        .nav-wrapper {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }

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

        .ai-page-logo {
            max-height: 50px;
            width: auto;
        }

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

        .nav-link {
            font-weight: 700;
            font-size: 15px;
            padding: 6px 12px;
            border: 2px solid transparent;
            transition: all 0.2s ease;
        }

        .nav-link:hover {
            border: 2px solid var(--border-color);
            background-color: var(--secondary);
            color: var(--white);
            box-shadow: 2px 2px 0px var(--border-color);
        }

        .nav-btn {
            background-color: var(--primary);
            color: var(--white);
            border: 2px solid var(--border-color);
            padding: 10px 20px;
            font-weight: 700;
            box-shadow: var(--neo-shadow);
            cursor: pointer;
            transition: transform 0.1s, box-shadow 0.1s;
        }

        .nav-btn:hover {
            transform: translate(-2px, -2px);
            box-shadow: var(--neo-shadow-hover);
        }

        /* 移动端菜单切换按钮 */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
            border: 2px solid var(--border-color);
            padding: 8px;
            background: var(--white);
        }

        .menu-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: var(--dark);
        }

        /* Hero首屏：明艳撞色，不带任何图片 */
        .hero {
            background: linear-gradient(135deg, #e0f2fe 0%, #ffe4e6 100%);
            border-bottom: 3px solid var(--border-color);
            padding: 100px 0 120px 0;
            position: relative;
            text-align: center;
        }

        .hero-badge {
            background-color: var(--secondary);
            color: var(--white);
            display: inline-block;
            padding: 6px 16px;
            font-weight: 800;
            font-size: 14px;
            border: 2px solid var(--border-color);
            box-shadow: 2px 2px 0px var(--border-color);
            margin-bottom: 24px;
            text-transform: uppercase;
        }

        .hero h1 {
            font-size: 48px;
            font-weight: 900;
            color: var(--dark);
            line-height: 1.2;
            margin-bottom: 24px;
            letter-spacing: -1px;
        }

        .hero p {
            font-size: 20px;
            color: var(--gray);
            max-width: 800px;
            margin: 0 auto 40px auto;
            font-weight: 500;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .btn-primary {
            background-color: var(--primary);
            color: var(--white);
            border: 3px solid var(--border-color);
            padding: 16px 36px;
            font-size: 18px;
            font-weight: 800;
            box-shadow: var(--neo-shadow);
            cursor: pointer;
            transition: all 0.15s;
        }

        .btn-primary:hover {
            transform: translate(-4px, -4px);
            box-shadow: var(--neo-shadow-hover);
            background-color: #1d4ed8;
        }

        .btn-secondary {
            background-color: var(--white);
            color: var(--dark);
            border: 3px solid var(--border-color);
            padding: 16px 36px;
            font-size: 18px;
            font-weight: 800;
            box-shadow: var(--neo-shadow);
            cursor: pointer;
            transition: all 0.15s;
        }

        .btn-secondary:hover {
            transform: translate(-4px, -4px);
            box-shadow: var(--neo-shadow-hover);
            background-color: var(--secondary);
            color: var(--white);
        }

        /* 标签云组件：突出支持的AIGC模型 */
        .hero-tags {
            margin-top: 60px;
            max-width: 900px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-tags-title {
            font-size: 14px;
            font-weight: 800;
            color: var(--gray);
            text-transform: uppercase;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }

        .hero-tags-title::before, .hero-tags-title::after {
            content: "";
            display: block;
            width: 40px;
            height: 2px;
            background-color: var(--border-color);
        }

        .tags-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }

        .tag-item {
            background-color: var(--white);
            border: 2px solid var(--border-color);
            padding: 5px 12px;
            font-size: 13px;
            font-weight: 700;
            box-shadow: 2px 2px 0px var(--border-color);
            transition: all 0.15s;
        }

        .tag-item:hover {
            transform: translateY(-2px);
            background-color: var(--primary);
            color: var(--white);
        }

        /* 通用区块设置 */
        section {
            padding: 80px 0;
            border-bottom: 3px solid var(--border-color);
            background-color: var(--white);
        }

        section.bg-light {
            background-color: var(--light);
        }

        .section-header {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-badge {
            background-color: #fef08a;
            color: var(--dark);
            padding: 4px 12px;
            border: 2px solid var(--border-color);
            font-weight: 700;
            font-size: 14px;
            display: inline-block;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 36px;
            font-weight: 900;
            margin-bottom: 16px;
        }

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

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 30px;
        }

        .stat-card {
            background-color: var(--white);
            border: 3px solid var(--border-color);
            padding: 30px;
            text-align: center;
            box-shadow: var(--neo-shadow);
            transition: all 0.2s;
        }

        .stat-card:hover {
            transform: translate(-4px, -4px);
            box-shadow: var(--neo-shadow-hover);
        }

        .stat-value {
            font-size: 44px;
            font-weight: 900;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 10px;
        }

        .stat-label {
            font-weight: 800;
            font-size: 16px;
            margin-bottom: 8px;
        }

        .stat-desc {
            font-size: 13px;
            color: var(--gray);
        }

        /* 服务能力卡片 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .service-card {
            background-color: var(--white);
            border: 3px solid var(--border-color);
            padding: 40px 30px;
            position: relative;
            box-shadow: var(--neo-shadow);
            transition: all 0.2s;
        }

        .service-card:hover {
            transform: translate(-4px, -4px);
            box-shadow: var(--neo-shadow-hover);
        }

        .service-icon {
            width: 60px;
            height: 60px;
            background-color: var(--secondary);
            border: 2px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            margin-bottom: 24px;
            box-shadow: 2px 2px 0px var(--border-color);
        }

        .service-title {
            font-size: 22px;
            font-weight: 900;
            margin-bottom: 16px;
        }

        .service-text {
            color: var(--gray);
            font-size: 15px;
            margin-bottom: 20px;
        }

        .service-features {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .service-features li {
            font-weight: 700;
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .service-features li::before {
            content: "✔";
            color: var(--primary);
        }

        /* 流程步骤：时间线样式 */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding: 20px 0;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 4px;
            background-color: var(--border-color);
            transform: translateX(-50%);
        }

        .timeline-item {
            position: relative;
            width: 50%;
            padding: 20px 40px;
            box-sizing: border-box;
        }

        .timeline-item:nth-child(odd) {
            left: 0;
            text-align: right;
        }

        .timeline-item:nth-child(even) {
            left: 50%;
            text-align: left;
        }

        .timeline-badge {
            position: absolute;
            top: 25px;
            width: 30px;
            height: 30px;
            background-color: var(--secondary);
            border: 3px solid var(--border-color);
            border-radius: 50%;
            z-index: 10;
        }

        .timeline-item:nth-child(odd) .timeline-badge {
            right: -17px;
        }

        .timeline-item:nth-child(even) .timeline-badge {
            left: -13px;
        }

        .timeline-content {
            background-color: var(--white);
            border: 3px solid var(--border-color);
            padding: 24px;
            box-shadow: var(--neo-shadow);
        }

        .timeline-step {
            display: inline-block;
            background-color: var(--primary);
            color: var(--white);
            font-size: 12px;
            font-weight: 800;
            padding: 2px 8px;
            border: 2px solid var(--border-color);
            margin-bottom: 12px;
        }

        .timeline-title {
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .timeline-desc {
            font-size: 14px;
            color: var(--gray);
        }

        /* 案例展示区：网格布局 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .case-card {
            background-color: var(--white);
            border: 3px solid var(--border-color);
            box-shadow: var(--neo-shadow);
            overflow: hidden;
            transition: all 0.2s;
        }

        .case-card:hover {
            transform: translate(-4px, -4px);
            box-shadow: var(--neo-shadow-hover);
        }

        .case-img-wrapper {
            position: relative;
            border-bottom: 3px solid var(--border-color);
            overflow: hidden;
            aspect-ratio: 16/9;
        }

        .case-img-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

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

        .case-tag {
            position: absolute;
            top: 15px;
            left: 15px;
            background-color: var(--secondary);
            color: var(--white);
            padding: 4px 10px;
            font-weight: 700;
            font-size: 12px;
            border: 2px solid var(--border-color);
        }

        .case-info {
            padding: 24px;
        }

        .case-title {
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .case-desc {
            font-size: 14px;
            color: var(--gray);
            margin-bottom: 16px;
        }

        /* 对比评测表格与卡片 */
        .rating-box {
            background: linear-gradient(135deg, #fef08a 0%, #fef3c7 100%);
            border: 3px solid var(--border-color);
            padding: 30px;
            margin-bottom: 40px;
            box-shadow: var(--neo-shadow);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }

        .rating-left h4 {
            font-size: 22px;
            font-weight: 900;
            margin-bottom: 6px;
        }

        .rating-left p {
            font-size: 14px;
            color: var(--gray);
        }

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

        .score-value {
            font-size: 54px;
            font-weight: 900;
            color: var(--secondary);
            line-height: 1;
        }

        .stars {
            font-size: 24px;
            color: #eab308;
            letter-spacing: 2px;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border: 3px solid var(--border-color);
            box-shadow: var(--neo-shadow);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            background-color: var(--white);
            text-align: left;
            min-width: 700px;
        }

        .compare-table th, .compare-table td {
            padding: 16px 20px;
            border-bottom: 2px solid var(--border-color);
            border-right: 2px solid var(--border-color);
            font-weight: 700;
            font-size: 14px;
        }

        .compare-table th {
            background-color: var(--primary);
            color: var(--white);
        }

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

        .compare-table td:last-child, .compare-table th:last-child {
            border-right: none;
        }

        .compare-table .highlight-col {
            background-color: #f0fdf4;
            color: var(--primary);
        }

        /* 价格与比价 */
        .price-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .price-card {
            background-color: var(--white);
            border: 3px solid var(--border-color);
            box-shadow: var(--neo-shadow);
            padding: 30px;
            text-align: center;
            position: relative;
        }

        .price-card.popular {
            background-color: #e0f2fe;
        }

        .price-badge {
            position: absolute;
            top: -15px;
            left: 50%;
            transform: translateX(-50%);
            background-color: var(--secondary);
            color: var(--white);
            padding: 4px 12px;
            font-weight: 800;
            font-size: 12px;
            border: 2px solid var(--border-color);
        }

        .price-header {
            margin-bottom: 20px;
        }

        .price-name {
            font-size: 20px;
            font-weight: 900;
            margin-bottom: 10px;
        }

        .price-amount {
            font-size: 36px;
            font-weight: 900;
            color: var(--dark);
        }

        .price-unit {
            font-size: 14px;
            color: var(--gray);
        }

        .price-features-list {
            list-style: none;
            margin: 24px 0;
            text-align: left;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .price-features-list li {
            font-size: 14px;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .price-features-list li::before {
            content: "•";
            color: var(--secondary);
            font-size: 20px;
            line-height: 1;
        }

        /* 培训板块 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .training-card {
            background-color: var(--white);
            border: 3px solid var(--border-color);
            padding: 24px;
            box-shadow: var(--neo-shadow);
            transition: all 0.2s;
        }

        .training-card:hover {
            transform: translate(-4px, -4px);
            box-shadow: var(--neo-shadow-hover);
        }

        .training-cert {
            font-size: 12px;
            background-color: #dbeafe;
            color: var(--primary);
            padding: 2px 8px;
            font-weight: 700;
            display: inline-block;
            margin-bottom: 12px;
            border: 1px solid var(--border-color);
        }

        .training-title {
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .training-desc {
            font-size: 13px;
            color: var(--gray);
        }

        /* 客户评论卡片 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .review-card {
            background-color: var(--white);
            border: 3px solid var(--border-color);
            padding: 30px;
            box-shadow: var(--neo-shadow);
            position: relative;
        }

        .review-quote {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
        }

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

        .review-avatar {
            width: 48px;
            height: 48px;
            background-color: var(--primary);
            border: 2px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-weight: 800;
            font-size: 18px;
        }

        .review-meta h5 {
            font-size: 15px;
            font-weight: 800;
        }

        .review-meta p {
            font-size: 12px;
            color: var(--gray);
        }

        /* FAQ折叠面板 */
        .faq-list {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            border: 3px solid var(--border-color);
            background-color: var(--white);
            box-shadow: var(--neo-shadow);
        }

        .faq-question {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 800;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.3s ease-out;
            border-top: 0 solid var(--border-color);
            font-size: 14px;
            color: var(--gray);
            font-weight: 500;
        }

        .faq-item.active .faq-answer {
            padding: 20px 24px;
            max-height: 200px;
            border-top: 3px solid var(--border-color);
        }

        .faq-icon::after {
            content: "+";
            font-size: 20px;
            font-weight: 900;
        }

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

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

        .news-card {
            background-color: var(--white);
            border: 3px solid var(--border-color);
            padding: 24px;
            box-shadow: var(--neo-shadow);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .news-title {
            font-size: 16px;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .news-link {
            font-size: 13px;
            color: var(--primary);
            font-weight: 700;
            text-transform: uppercase;
            align-self: flex-start;
            border-bottom: 2px solid var(--primary);
            padding-bottom: 2px;
        }

        .news-link:hover {
            color: var(--secondary);
            border-bottom-color: var(--secondary);
        }

        /* 需求表单与联系方式 */
        .contact-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
        }

        @media (max-width: 992px) {
            .contact-layout {
                grid-template-columns: 1fr;
            }
        }

        .form-wrapper {
            background-color: var(--white);
            border: 3px solid var(--border-color);
            padding: 40px;
            box-shadow: var(--neo-shadow);
        }

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

        .form-label {
            display: block;
            font-weight: 800;
            font-size: 14px;
            margin-bottom: 8px;
        }

        .form-input, .form-select, .form-textarea {
            width: 100%;
            padding: 12px 16px;
            border: 3px solid var(--border-color);
            font-size: 14px;
            font-weight: 700;
            background-color: var(--light);
            outline: none;
        }

        .form-input:focus, .form-select:focus, .form-textarea:focus {
            background-color: var(--white);
            border-color: var(--primary);
        }

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

        .info-card {
            background-color: var(--white);
            border: 3px solid var(--border-color);
            padding: 24px;
            box-shadow: var(--neo-shadow);
            display: flex;
            gap: 20px;
            align-items: center;
        }

        .info-qrcode {
            width: 90px;
            height: 90px;
            border: 2px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            background-color: var(--white);
        }

        .info-qrcode img {
            width: 100%;
            height: auto;
        }

        .info-detail h4 {
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 6px;
        }

        .info-detail p {
            font-size: 14px;
            color: var(--gray);
        }

        /* 侧边悬浮窗口 */
        .sticky-kf {
            position: fixed;
            right: 20px;
            bottom: 80px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .kf-item {
            background-color: var(--secondary);
            color: var(--white);
            border: 2px solid var(--border-color);
            width: 50px;
            height: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 3px 3px 0px var(--border-color);
            cursor: pointer;
            position: relative;
            font-weight: 900;
        }

        .kf-item:hover {
            transform: translate(-2px, -2px);
            box-shadow: 5px 5px 0px var(--border-color);
        }

        .kf-popover {
            position: absolute;
            right: 65px;
            bottom: 0;
            background-color: var(--white);
            border: 3px solid var(--border-color);
            padding: 15px;
            box-shadow: var(--neo-shadow);
            display: none;
            text-align: center;
            width: 150px;
        }

        .kf-popover img {
            width: 100%;
            height: auto;
            margin-bottom: 8px;
        }

        .kf-popover p {
            font-size: 12px;
            color: var(--dark);
            font-weight: 700;
        }

        .kf-item:hover .kf-popover {
            display: block;
        }

        /* 页脚区域 */
        footer {
            background-color: var(--dark);
            color: #94a3b8;
            border-top: 3px solid var(--border-color);
            padding: 60px 0 20px 0;
        }

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

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        .footer-brand h3 {
            color: var(--white);
            font-size: 22px;
            font-weight: 900;
            margin-bottom: 15px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
        }

        .footer-links-title {
            color: var(--white);
            font-weight: 800;
            font-size: 16px;
            margin-bottom: 20px;
            position: relative;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
            font-size: 14px;
        }

        .footer-links a:hover {
            color: var(--white);
            text-decoration: underline;
        }

        .friendship-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
            border-top: 1px solid #334155;
            padding-top: 20px;
        }

        .friendship-links a {
            font-size: 12px;
            background-color: #1e293b;
            padding: 4px 10px;
            border: 1px solid #475569;
            color: #94a3b8;
        }

        .friendship-links a:hover {
            background-color: var(--primary);
            color: var(--white);
        }

        .footer-bottom {
            border-top: 1px solid #334155;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 12px;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 80px;
                left: 0;
                right: 0;
                background-color: var(--white);
                border-bottom: 3px solid var(--border-color);
                padding: 20px;
                gap: 10px;
            }

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

            .menu-toggle {
                display: flex;
            }

            .hero h1 {
                font-size: 32px;
            }

            .timeline::before {
                left: 20px;
            }

            .timeline-item {
                width: 100%;
                padding-left: 50px;
                padding-right: 0;
                text-align: left;
            }

            .timeline-item:nth-child(odd) {
                left: 0;
                text-align: left;
            }

            .timeline-item:nth-child(even) {
                left: 0;
            }

            .timeline-item:nth-child(odd) .timeline-badge {
                left: 5px;
            }

            .timeline-item:nth-child(even) .timeline-badge {
                left: 5px;
            }
        }