:root {
            --bg: #f9fafb;
            --card-bg: #ffffff;
            --text-main: #111827;
            --text-muted: #4b5563;
            --border: #111827;
            --primary: #0055ff; /* 撞色蓝 */
            --accent-orange: #ff5a00; /* 撞色橘 */
            --accent-green: #00ff88; /* 荧光绿 */
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text-main);
        }

        body {
            line-height: 1.6;
        }

        /* 统一容器规范 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 导航 */
        header {
            background-color: var(--card-bg);
            border-bottom: 3px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
        }

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

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

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

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

        .nav-menu a {
            color: var(--text-main);
            text-decoration: none;
            font-weight: 700;
            font-size: 0.95rem;
            transition: color 0.2s;
        }

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

        .nav-btn {
            background: var(--accent-orange);
            color: white !important;
            padding: 8px 16px;
            border: 2px solid var(--border);
            box-shadow: 2px 2px 0px var(--border);
            border-radius: 4px;
            font-weight: bold;
        }

        .nav-btn:hover {
            box-shadow: 4px 4px 0px var(--border);
            transform: translate(-2px, -2px);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
        }

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

        /* 新丑风卡片基底 */
        .brutalist-card {
            background: var(--card-bg);
            border: 3px solid var(--border);
            box-shadow: 5px 5px 0px var(--border);
            border-radius: 8px;
            padding: 24px;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }

        .brutalist-card:hover {
            transform: translate(-3px, -3px);
            box-shadow: 8px 8px 0px var(--border);
        }

        /* 首屏 Hero - 无图片 */
        .hero-section {
            padding: 80px 0;
            background: linear-gradient(135deg, #e0f2fe 0%, #ffe4e6 100%);
            border-bottom: 3px solid var(--border);
            text-align: center;
        }

        .hero-content {
            max-width: 800px;
            margin: 0 auto;
        }

        .hero-tag {
            display: inline-block;
            background-color: var(--accent-green);
            color: var(--text-main);
            border: 2px solid var(--border);
            padding: 6px 12px;
            font-weight: 800;
            font-size: 0.9rem;
            margin-bottom: 20px;
            transform: rotate(-1deg);
        }

        .hero-section h1 {
            font-size: 2.8rem;
            line-height: 1.2;
            margin-bottom: 24px;
            font-weight: 900;
        }

        .hero-section p {
            font-size: 1.2rem;
            color: var(--text-muted);
            margin-bottom: 32px;
        }

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

        .btn-main {
            background: var(--primary);
            color: white;
            padding: 16px 32px;
            font-size: 1.1rem;
            font-weight: 800;
            border: 3px solid var(--border);
            box-shadow: 4px 4px 0px var(--border);
            text-decoration: none;
            border-radius: 6px;
            transition: all 0.1s ease;
        }

        .btn-main:active {
            transform: translate(2px, 2px);
            box-shadow: 2px 2px 0px var(--border);
        }

        .btn-sub {
            background: var(--card-bg);
            color: var(--text-main);
            padding: 16px 32px;
            font-size: 1.1rem;
            font-weight: 800;
            border: 3px solid var(--border);
            box-shadow: 4px 4px 0px var(--border);
            text-decoration: none;
            border-radius: 6px;
            transition: all 0.1s ease;
        }

        .btn-sub:active {
            transform: translate(2px, 2px);
            box-shadow: 2px 2px 0px var(--border);
        }

        /* 通用标题 */
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 900;
            display: inline-block;
            position: relative;
            z-index: 1;
            padding: 0 10px;
        }

        .section-header h2::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 4px;
            width: 100%;
            height: 12px;
            background-color: var(--accent-green);
            z-index: -1;
            transform: rotate(-1deg);
        }

        .section-header p {
            color: var(--text-muted);
            margin-top: 10px;
            font-size: 1.05rem;
        }

        /* 板块公用 Padding */
        section {
            padding: 80px 0;
            border-bottom: 3px solid var(--border);
        }

        /* 2. 关于我们 */
        .about-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 20px;
        }

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

        .about-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }

        .badge {
            background-color: #f3f4f6;
            border: 2px solid var(--border);
            padding: 6px 12px;
            font-weight: 700;
            font-size: 0.85rem;
            border-radius: 4px;
        }

        .about-quote {
            background: linear-gradient(135deg, #ffe4e6 0%, #fef08a 100%);
        }

        /* 3. AIGC服务 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .service-icon {
            font-size: 2.5rem;
            margin-bottom: 15px;
        }

        .service-title {
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: 10px;
        }

        /* 4. 一站式制作 */
        .flow-card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .flow-step-num {
            display: inline-block;
            background-color: var(--accent-orange);
            color: white;
            font-weight: 900;
            border: 2px solid var(--border);
            padding: 4px 10px;
            margin-bottom: 15px;
            border-radius: 4px;
        }

        /* 5. 行业解决方案 */
        .solutions-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .solution-item h3 {
            font-size: 1.4rem;
            font-weight: 800;
            margin-bottom: 12px;
        }

        /* 6. 全国服务网络 */
        .network-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
        }

        .network-card {
            text-align: center;
        }

        /* 7. 标准化流程 */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding-left: 30px;
            border-left: 3px solid var(--border);
        }

        .timeline-item {
            position: relative;
            margin-bottom: 40px;
        }

        .timeline-item::before {
            content: "";
            position: absolute;
            left: -41px;
            top: 5px;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background-color: var(--accent-green);
            border: 3px solid var(--border);
        }

        .timeline-time {
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 5px;
        }

        /* 8. 客户案例中心 (含图片展示) */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .case-image-wrapper {
            position: relative;
            border: 3px solid var(--border);
            border-radius: 6px;
            overflow: hidden;
            margin-bottom: 15px;
            aspect-ratio: 16/9;
        }

        .case-image-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        .case-image-wrapper.square {
            aspect-ratio: 1/1;
        }

        .case-tag {
            position: absolute;
            top: 10px;
            left: 10px;
            background: var(--accent-orange);
            color: white;
            border: 2px solid var(--border);
            padding: 3px 8px;
            font-size: 0.8rem;
            font-weight: 800;
            border-radius: 4px;
        }

        /* 9. 对比评测 */
        .rating-badge {
            background-color: var(--accent-green);
            border: 3px solid var(--border);
            padding: 15px;
            display: inline-block;
            transform: rotate(-2deg);
            margin-bottom: 30px;
        }

        .rating-num {
            font-size: 2.5rem;
            font-weight: 950;
            line-height: 1;
        }

        .compare-table-wrapper {
            overflow-x: auto;
            border: 3px solid var(--border);
            border-radius: 8px;
            box-shadow: 4px 4px 0px var(--border);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            background-color: white;
        }

        .compare-table th, .compare-table td {
            padding: 16px;
            border: 2px solid var(--border);
            font-weight: 700;
        }

        .compare-table th {
            background-color: #f3f4f6;
        }

        .highlight-col {
            background-color: #eff6ff;
            color: var(--primary);
        }

        /* 10. 智能需求匹配 + 18. 联系我们 */
        .contact-layout {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
        }

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

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

        .form-control {
            width: 100%;
            padding: 12px;
            border: 3px solid var(--border);
            border-radius: 6px;
            font-family: inherit;
            font-weight: 700;
            outline: none;
        }

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

        .qr-card {
            text-align: center;
        }

        .qr-card img {
            width: 160px;
            height: 160px;
            border: 3px solid var(--border);
            box-shadow: 4px 4px 0px var(--border);
            margin: 20px 0;
            border-radius: 8px;
        }

        /* 11. Token比价 */
        .token-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        .token-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 2px solid var(--border);
            padding-bottom: 10px;
            margin-bottom: 15px;
        }

        .token-price {
            font-size: 1.5rem;
            color: var(--accent-orange);
            font-weight: 900;
        }

        /* 12. 职业技术培训 & 13. 人工智能培训 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .training-card {
            background-color: #fef08a; /* 亮黄撞色 */
        }

        /* 14. 帮助中心 & 15. FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border: 3px solid var(--border);
            box-shadow: 4px 4px 0px var(--border);
            border-radius: 6px;
            margin-bottom: 15px;
            overflow: hidden;
            background: white;
        }

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

        .faq-question::after {
            content: "+";
            font-size: 1.5rem;
            font-weight: bold;
        }

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

        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.2s ease-out, padding 0.2s ease-out;
            border-top: 0px solid var(--border);
            background-color: #fafafa;
        }

        .faq-item.active .faq-answer {
            padding: 20px;
            max-height: 300px;
            border-top: 2px solid var(--border);
        }

        /* 16. AI术语百科 (标签云) */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            justify-content: center;
        }

        .tag-cloud-item {
            background-color: white;
            border: 2px solid var(--border);
            box-shadow: 3px 3px 0px var(--border);
            padding: 8px 16px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.95rem;
            text-decoration: none;
            color: var(--text-main);
            transition: all 0.15s;
        }

        .tag-cloud-item:hover {
            background-color: var(--primary);
            color: white;
            transform: translate(-2px, -2px);
            box-shadow: 5px 5px 0px var(--border);
        }

        /* 17. 行业资讯 / 知识库 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        .news-link {
            display: block;
            text-decoration: none;
            color: var(--text-main);
        }

        .news-link h3 {
            font-size: 1.1rem;
            font-weight: 800;
            margin-bottom: 10px;
        }

        /* 用户评论 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
        }

        .review-card {
            border: 3px solid var(--border);
            background-color: white;
            box-shadow: 4px 4px 0px var(--border);
            padding: 24px;
            border-radius: 8px;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 15px;
        }

        .user-avatar {
            width: 45px;
            height: 45px;
            background-color: var(--accent-orange);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            border-radius: 50%;
            border: 2px solid var(--border);
        }

        .user-info h4 {
            font-size: 0.95rem;
            font-weight: 800;
        }

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

        /* 19. 加盟代理 */
        .agent-section {
            background: linear-gradient(135deg, #fef08a 0%, #bbf7d0 100%);
        }

        /* 页脚 */
        footer {
            background-color: #111827;
            color: #f3f4f6;
            padding: 60px 0 30px;
            border-top: 3px solid var(--border);
        }

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

        .footer-logo img {
            height: 40px;
            margin-bottom: 15px;
        }

        .footer-links h4 {
            font-size: 1.1rem;
            margin-bottom: 15px;
            color: white;
            font-weight: 800;
        }

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

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

        .footer-links a {
            color: #d1d5db;
            text-decoration: none;
        }

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

        .friend-links a {
            display: inline-block;
            margin-right: 15px;
            margin-bottom: 8px;
            color: #d1d5db;
            text-decoration: none;
            font-size: 0.9rem;
        }

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

        .footer-bottom {
            border-top: 1px solid #374151;
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: #9ca3af;
        }

        /* 悬浮客服 */
        .floating-kefu {
            position: fixed;
            right: 20px;
            bottom: 20px;
            z-index: 99;
            background: var(--accent-orange);
            border: 3px solid var(--border);
            box-shadow: 4px 4px 0px var(--border);
            padding: 12px;
            border-radius: 50%;
            cursor: pointer;
            width: 60px;
            height: 60px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.2s;
        }

        .floating-kefu:hover {
            transform: translate(-3px, -3px);
            box-shadow: 6px 6px 0px var(--border);
        }

        .floating-kefu svg {
            width: 28px;
            height: 28px;
            fill: white;
        }

        .kefu-modal {
            display: none;
            position: fixed;
            right: 90px;
            bottom: 20px;
            background: white;
            border: 3px solid var(--border);
            box-shadow: 5px 5px 0px var(--border);
            padding: 20px;
            border-radius: 8px;
            z-index: 100;
            width: 220px;
            text-align: center;
        }

        .kefu-modal img {
            width: 140px;
            height: 140px;
            border: 2px solid var(--border);
            margin: 10px 0;
        }

        .kefu-modal p {
            font-size: 0.85rem;
            font-weight: bold;
        }

        /* 手机端响应式 */
        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: white;
                border-bottom: 3px solid var(--border);
                padding: 20px;
                gap: 15px;
            }

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

            .menu-toggle {
                display: flex;
            }

            .hero-section h1 {
                font-size: 2rem;
            }

            .about-grid, .solutions-container, .contact-layout, .footer-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                text-align: center;
            }
        }