/* CSS Reset & Variables */
        :root {
            --bg-dark: #09070f;
            --bg-card: #151124;
            --bg-card-hover: #1e1933;
            --primary: #ff007f;
            --secondary: #8a2be2;
            --cyan: #00f0ff;
            --text-light: #ffffff;
            --text-muted: #a39cb5;
            --border-neon: rgba(255, 0, 127, 0.3);
            --border-purple: rgba(138, 43, 226, 0.3);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-dark);
            color: var(--text-light);
            overflow-x: hidden;
        }

        body {
            line-height: 1.6;
        }

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

        /* Neon Text & Buttons */
        .neon-text-pink {
            color: var(--primary);
            text-shadow: 0 0 10px rgba(255, 0, 127, 0.5);
        }
        .neon-text-purple {
            color: var(--secondary);
            text-shadow: 0 0 10px rgba(138, 43, 226, 0.5);
        }
        .neon-text-cyan {
            color: var(--cyan);
            text-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
        }

        .btn-neon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            text-decoration: none;
            border-radius: 30px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(255, 0, 127, 0.4);
            transition: var(--transition);
        }
        .btn-neon:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 0, 127, 0.6), 0 0 15px rgba(0, 240, 255, 0.3);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            background: transparent;
            color: var(--cyan);
            text-decoration: none;
            border-radius: 30px;
            font-weight: 600;
            border: 2px solid var(--cyan);
            cursor: pointer;
            transition: var(--transition);
        }
        .btn-outline:hover {
            background: rgba(0, 240, 255, 0.1);
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
            color: #fff;
        }

        /* Header */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(9, 7, 15, 0.85);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-purple);
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 80px;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }
        .ai-page-logo {
            height: 40px;
            width: auto;
        }
        .logo-text {
            font-size: 1.25rem;
            font-weight: 800;
            background: linear-gradient(135deg, #fff, var(--text-muted));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 20px;
        }
        nav ul li a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.95rem;
            transition: var(--transition);
            padding: 5px 10px;
            border-radius: 4px;
        }
        nav ul li a:hover, nav ul li a.active {
            color: var(--primary);
            background: rgba(255, 0, 127, 0.05);
        }
        .nav-btn {
            font-size: 0.9rem;
            padding: 8px 20px;
        }
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .menu-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background: var(--text-light);
            transition: var(--transition);
        }

        /* Section Settings */
        section {
            padding: 100px 0;
            position: relative;
        }
        .section-header {
            text-align: center;
            margin-bottom: 60px;
        }
        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 15px;
            background: linear-gradient(135deg, #fff, var(--cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .section-header p {
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
            font-size: 1.05rem;
        }

        /* Hero (No Image Allowed) */
        .hero {
            padding-top: 180px;
            padding-bottom: 120px;
            background: radial-gradient(circle at 80% 20%, rgba(138, 43, 226, 0.15) 0%, transparent 50%),
                        radial-gradient(circle at 10% 80%, rgba(255, 0, 127, 0.12) 0%, transparent 50%);
            text-align: center;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255, 0, 127, 0.1);
            border: 1px solid var(--border-neon);
            border-radius: 20px;
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 25px;
            letter-spacing: 1px;
            animation: pulse 2s infinite;
        }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 900;
            line-height: 1.25;
            margin-bottom: 25px;
            background: linear-gradient(135deg, #fff 30%, var(--primary) 70%, var(--cyan) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero p.hero-desc {
            font-size: 1.25rem;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 40px;
        }
        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 60px;
        }

        /* Stats Cards */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }
        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-purple);
            border-radius: 16px;
            padding: 30px 20px;
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: 0 10px 25px rgba(255, 0, 127, 0.15);
        }
        .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--cyan);
            margin-bottom: 8px;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* Platform Intro & Services */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .service-card {
            background: var(--bg-card);
            border: 1px solid var(--border-purple);
            border-radius: 16px;
            padding: 35px 25px;
            transition: var(--transition);
        }
        .service-card:hover {
            transform: translateY(-5px);
            border-color: var(--cyan);
            box-shadow: 0 10px 25px rgba(0, 240, 255, 0.1);
        }
        .service-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 20px;
        }
        .service-card h3 {
            font-size: 1.3rem;
            margin-bottom: 12px;
            color: #fff;
        }
        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* Model Aggregation Tag Cloud */
        .tag-cloud-section {
            background: linear-gradient(180deg, var(--bg-dark), #100b21, var(--bg-dark));
            padding: 80px 0;
        }
        .tag-wrapper {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            max-width: 900px;
            margin: 0 auto;
        }
        .model-tag {
            padding: 8px 18px;
            background: rgba(138, 43, 226, 0.1);
            border: 1px solid var(--border-purple);
            border-radius: 20px;
            font-size: 0.9rem;
            color: var(--text-light);
            transition: var(--transition);
        }
        .model-tag:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: scale(1.05);
            box-shadow: 0 0 10px rgba(255, 0, 127, 0.4);
        }

        /* Timeline AIGC Workflow */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }
        .timeline::after {
            content: '';
            position: absolute;
            width: 2px;
            background: var(--border-purple);
            top: 0;
            bottom: 0;
            left: 50%;
            margin-left: -1px;
        }
        .timeline-item {
            padding: 10px 40px;
            position: relative;
            width: 50%;
        }
        .timeline-item::after {
            content: '';
            position: absolute;
            width: 16px;
            height: 16px;
            right: -8px;
            background-color: var(--bg-dark);
            border: 3px solid var(--primary);
            top: 15px;
            border-radius: 50%;
            z-index: 1;
        }
        .left {
            left: 0;
            text-align: right;
        }
        .right {
            left: 50%;
        }
        .right::after {
            left: -8px;
        }
        .timeline-content {
            padding: 20px;
            background: var(--bg-card);
            position: relative;
            border-radius: 12px;
            border: 1px solid var(--border-purple);
        }
        .timeline-content h3 {
            color: var(--cyan);
            margin-bottom: 8px;
            font-size: 1.15rem;
        }
        .timeline-content p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* Grid Network / Services Network */
        .network-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }
        .network-card {
            background: var(--bg-card);
            border-left: 4px solid var(--cyan);
            padding: 20px;
            border-radius: 0 12px 12px 0;
        }
        .network-card h4 {
            color: #fff;
            margin-bottom: 8px;
        }
        .network-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* Industry Solutions & Case Center (Image allowed here) */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
        }
        .solution-card {
            background: var(--bg-card);
            border-radius: 20px;
            overflow: hidden;
            border: 1px solid var(--border-purple);
            transition: var(--transition);
        }
        .solution-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
        }
        .solution-img-wrapper {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
        }
        .solution-img-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .solution-card:hover .solution-img-wrapper img {
            transform: scale(1.05);
        }
        .solution-info {
            padding: 30px;
        }
        .solution-info h3 {
            font-size: 1.4rem;
            color: #fff;
            margin-bottom: 15px;
        }
        .solution-info p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 20px;
        }

        /* Review / Comparison Board */
        .review-table-container {
            width: 100%;
            overflow-x: auto;
            border-radius: 12px;
            border: 1px solid var(--border-purple);
            background: var(--bg-card);
        }
        table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 800px;
        }
        th, td {
            padding: 18px 24px;
            border-bottom: 1px solid rgba(138, 43, 226, 0.15);
        }
        th {
            background: rgba(138, 43, 226, 0.1);
            color: var(--cyan);
            font-weight: 700;
        }
        tr:hover {
            background: rgba(255, 0, 127, 0.02);
        }
        .rating-badge {
            display: inline-block;
            padding: 4px 10px;
            background: rgba(255, 0, 127, 0.15);
            color: var(--primary);
            border-radius: 6px;
            font-weight: bold;
        }

        /* Token Pricing */
        .price-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }
        .price-card {
            background: var(--bg-card);
            border: 1px solid var(--border-purple);
            border-radius: 16px;
            padding: 30px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .price-card.popular {
            border-color: var(--primary);
            background: linear-gradient(180deg, rgba(255,0,127,0.05) 0%, var(--bg-card) 100%);
        }
        .price-card.popular::before {
            content: '推荐';
            position: absolute;
            top: 15px;
            right: -30px;
            background: var(--primary);
            color: #fff;
            font-size: 0.75rem;
            padding: 4px 30px;
            transform: rotate(45deg);
            font-weight: bold;
        }
        .price-card h4 {
            font-size: 1.25rem;
            color: #fff;
            margin-bottom: 15px;
        }
        .price-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--cyan);
            margin-bottom: 20px;
        }
        .price-num span {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: normal;
        }
        .price-features {
            list-style: none;
            margin-bottom: 30px;
            text-align: left;
        }
        .price-features li {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .price-features li::before {
            content: '✓';
            color: var(--cyan);
            font-weight: bold;
        }

        /* Training & Certificates */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }
        .training-card {
            background: var(--bg-card);
            border: 1px solid var(--border-purple);
            border-radius: 16px;
            padding: 30px;
            display: flex;
            gap: 20px;
        }
        .training-icon {
            font-size: 2.5rem;
            color: var(--cyan);
            flex-shrink: 0;
        }
        .training-info h4 {
            font-size: 1.25rem;
            color: #fff;
            margin-bottom: 8px;
        }
        .training-info p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 12px;
        }
        .cert-badge {
            display: inline-block;
            padding: 3px 8px;
            background: rgba(0, 240, 255, 0.1);
            color: var(--cyan);
            border: 1px solid rgba(0, 240, 255, 0.2);
            font-size: 0.8rem;
            border-radius: 4px;
        }

        /* Form section */
        .form-section {
            background: radial-gradient(circle at 50% 50%, rgba(138, 43, 226, 0.1) 0%, transparent 60%);
        }
        .form-wrapper {
            max-width: 650px;
            margin: 0 auto;
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 20px;
            padding: 40px;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
        }
        .form-group {
            margin-bottom: 22px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: #fff;
            font-weight: 500;
            font-size: 0.95rem;
        }
        .form-control {
            width: 100%;
            padding: 12px 16px;
            background: rgba(9, 7, 15, 0.6);
            border: 1px solid var(--border-purple);
            border-radius: 8px;
            color: #fff;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 10px rgba(255, 0, 127, 0.3);
            outline: none;
        }
        select.form-control option {
            background-color: var(--bg-card);
            color: #fff;
        }

        /* Testimonials / User Comments */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }
        .comment-card {
            background: var(--bg-card);
            border: 1px solid var(--border-purple);
            border-radius: 16px;
            padding: 25px;
            position: relative;
        }
        .comment-text {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 20px;
            font-style: italic;
        }
        .comment-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .comment-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: #fff;
            font-size: 1rem;
        }
        .comment-meta h5 {
            color: #fff;
            font-size: 0.95rem;
        }
        .comment-meta p {
            color: var(--cyan);
            font-size: 0.8rem;
        }

        /* FAQ accordion */
        .faq-wrapper {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-purple);
            border-radius: 10px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-question {
            padding: 20px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            color: #fff;
        }
        .faq-question:hover {
            background: var(--bg-card-hover);
        }
        .faq-question::after {
            content: '+';
            font-size: 1.5rem;
            color: var(--primary);
            transition: var(--transition);
        }
        .faq-item.active .faq-question::after {
            content: '−';
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: rgba(9, 7, 15, 0.4);
            color: var(--text-muted);
            font-size: 0.95rem;
        }
        .faq-answer-inner {
            padding: 20px;
            border-top: 1px solid rgba(138, 43, 226, 0.1);
        }

        /* Articles & Knowledge Base */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }
        .article-card {
            background: var(--bg-card);
            border: 1px solid var(--border-purple);
            border-radius: 12px;
            padding: 20px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .article-card:hover {
            transform: translateY(-5px);
            border-color: var(--cyan);
        }
        .article-title {
            font-size: 1.05rem;
            font-weight: bold;
            color: #fff;
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .article-link {
            color: var(--cyan);
            text-decoration: none;
            font-size: 0.9rem;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 15px;
        }
        .article-link:hover {
            color: var(--primary);
        }

        /* Footer & Partners */
        footer {
            background: #06040a;
            border-top: 1px solid var(--border-purple);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 50px;
            margin-bottom: 40px;
        }
        .footer-logo-info p {
            color: var(--text-muted);
            margin: 15px 0;
            font-size: 0.95rem;
        }
        .footer-links h5, .footer-contact h5 {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 20px;
            border-left: 3px solid var(--primary);
            padding-left: 10px;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links ul li {
            margin-bottom: 10px;
        }
        .footer-links ul li a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-links ul li a:hover {
            color: var(--cyan);
            padding-left: 5px;
        }
        .footer-contact p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 12px;
        }
        .friend-links-box {
            border-top: 1px solid rgba(138, 43, 226, 0.15);
            padding-top: 25px;
            margin-top: 25px;
        }
        .friend-links-box h6 {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-bottom: 10px;
        }
        .friend-links-box a {
            color: var(--text-muted);
            text-decoration: none;
            margin-right: 15px;
            font-size: 0.85rem;
            display: inline-block;
            transition: var(--transition);
        }
        .friend-links-box a:hover {
            color: var(--primary);
        }
        .copyright-bar {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(138, 43, 226, 0.15);
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        /* Float Customer Service */
        .float-cs {
            position: fixed;
            right: 25px;
            bottom: 25px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .float-btn {
            width: 54px;
            height: 54px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            cursor: pointer;
            box-shadow: 0 5px 15px rgba(255, 0, 127, 0.4);
            transition: var(--transition);
            font-size: 1.2rem;
            position: relative;
        }
        .float-btn:hover {
            transform: scale(1.1);
        }
        .qr-popup {
            position: absolute;
            bottom: 65px;
            right: 0;
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            padding: 15px;
            border-radius: 12px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.5);
            display: none;
            text-align: center;
            width: 160px;
        }
        .qr-popup img {
            width: 100%;
            height: auto;
            border-radius: 8px;
            margin-bottom: 8px;
        }
        .qr-popup p {
            font-size: 0.75rem;
            color: var(--text-light);
            margin: 0;
        }
        .float-btn:hover .qr-popup {
            display: block;
        }
        .back-top {
            background: var(--bg-card);
            border: 1px solid var(--border-purple);
            color: var(--cyan);
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        .back-top:hover {
            background: var(--cyan);
            color: var(--bg-dark);
            box-shadow: 0 5px 15px rgba(0, 240, 255, 0.4);
        }

        /* Animations */
        @keyframes pulse {
            0% { box-shadow: 0 0 0 0 rgba(255, 0, 127, 0.4); }
            70% { box-shadow: 0 0 0 10px rgba(255, 0, 127, 0); }
            100% { box-shadow: 0 0 0 0 rgba(255, 0, 127, 0); }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .stats-grid, .services-grid, .comments-grid, .articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .price-grid {
                grid-template-columns: 1fr;
                max-width: 500px;
                margin: 0 auto;
            }
        }
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero p.hero-desc {
                font-size: 1rem;
            }
            nav {
                display: none;
                position: absolute;
                top: 80px;
                left: 0;
                width: 100%;
                background: var(--bg-card);
                border-bottom: 2px solid var(--border-purple);
                padding: 20px 0;
            }
            nav.open {
                display: block;
            }
            nav ul {
                flex-direction: column;
                align-items: center;
                gap: 15px;
            }
            .menu-toggle {
                display: flex;
            }
            .stats-grid, .services-grid, .comments-grid, .articles-grid, .solutions-grid, .training-grid, .network-grid {
                grid-template-columns: 1fr;
            }
            .timeline::after {
                left: 31px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 70px;
                padding-right: 20px;
                text-align: left !important;
            }
            .timeline-item::after {
                left: 22px;
                right: auto;
            }
            .left {
                left: 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .nav-container {
                padding: 0 20px;
            }
            .hero-btns {
                flex-direction: column;
                align-items: center;
                gap: 15px;
            }
            .hero-btns a {
                width: 80%;
            }
        }