:root {
            --bg-main: #fafbfc;
            --bg-card: #ffffff;
            --text-main: #0f172a;
            --text-muted: #475569;
            --primary: #2563eb;
            --primary-glow: rgba(37, 99, 235, 0.15);
            --neon-blue: #00d2ff;
            --neon-pink: #ff007f;
            --neon-green: #00f2fe;
            --border-color: #e2e8f0;
            --max-width: 1200px;
        }

        * {
            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(--bg-main);
            color: var(--text-main);
            line-height: 1.6;
            overflow-x: hidden;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: all 0.3s ease;
        }

        a:hover {
            color: var(--neon-pink);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

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

        /* Header Navigation */
        header {
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(10px);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
        }

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

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

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

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

        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            padding: 5px 10px;
            border-radius: 6px;
        }

        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-glow);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            border-radius: 8px;
            border: none;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), #1d4ed8);
            color: white;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-main);
        }

        .btn-outline:hover {
            background: var(--bg-main);
            border-color: var(--text-main);
        }

        /* Menu Toggle Mobile */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
        }

        .menu-toggle span {
            width: 25px;
            height: 2.5px;
            background: var(--text-main);
            border-radius: 2px;
            transition: 0.3s;
        }

        /* Main Layout */
        main {
            margin-top: 70px;
        }

        section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-title h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--neon-blue), var(--neon-pink));
            border-radius: 2px;
        }

        .section-title p {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }

        /* Hero首屏 - 炫彩荧光风 & 无图片 */
        .hero-section {
            background: radial-gradient(circle at 80% 20%, rgba(0, 210, 255, 0.08), transparent 40%),
                        radial-gradient(circle at 10% 80%, rgba(255, 0, 127, 0.08), transparent 40%),
                        var(--bg-card);
            text-align: center;
            padding: 120px 0 100px 0;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--neon-blue), var(--neon-pink), var(--neon-green));
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(37, 99, 235, 0.08);
            border: 1px solid rgba(37, 99, 235, 0.2);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 25px;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.03); }
            100% { transform: scale(1); }
        }

        .hero-section h1 {
            font-size: 46px;
            font-weight: 900;
            line-height: 1.25;
            color: var(--text-main);
            max-width: 900px;
            margin: 0 auto 25px auto;
        }

        .hero-section h1 span {
            background: linear-gradient(135deg, #2563eb, #ff007f);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 700px;
            margin: 0 auto 40px auto;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 50px;
        }

        .hero-btns .btn {
            padding: 14px 32px;
            font-size: 16px;
        }

        /* 数据指标卡片 */
        .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-color);
            border-radius: 12px;
            padding: 24px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
            transition: all 0.3s ease;
        }

        .stat-card:hover {
            transform: translateY(-5px);
            border-color: var(--neon-blue);
            box-shadow: 0 15px 30px rgba(0, 210, 255, 0.1);
        }

        .stat-num {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 10px;
            background: linear-gradient(135deg, var(--primary), var(--neon-pink));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

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

        .about-text h3 {
            font-size: 28px;
            margin-bottom: 20px;
            color: var(--text-main);
        }

        .about-text p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 16px;
        }

        .feature-bullet-list {
            list-style: none;
        }

        .feature-bullet-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            font-weight: 500;
        }

        .feature-bullet-list li::before {
            content: '✓';
            color: var(--neon-pink);
            font-weight: bold;
        }

        /* 全平台AIGC服务 - 模型墙 */
        .model-showcase {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 40px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.02);
            border: 1px solid var(--border-color);
        }

        .model-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 15px;
            margin-top: 30px;
        }

        .model-badge {
            background: var(--bg-main);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 12px;
            text-align: center;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.2s;
        }

        .model-badge:hover {
            background: linear-gradient(135deg, rgba(0, 210, 255, 0.05), rgba(255, 0, 127, 0.05));
            border-color: var(--neon-pink);
            transform: scale(1.05);
        }

        /* 一站式AIGC制作 & 核心场景 */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .scene-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            transition: all 0.3s ease;
        }

        .scene-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.05);
            border-color: var(--neon-blue);
        }

        .scene-icon {
            width: 50px;
            height: 50px;
            background: var(--primary-glow);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 20px;
            color: var(--primary);
        }

        .scene-card h3 {
            font-size: 20px;
            margin-bottom: 12px;
        }

        .scene-card p {
            color: var(--text-muted);
            font-size: 14px;
        }

        /* 标准化流程 & 技术标准 */
        .process-flow {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            position: relative;
        }

        .process-flow::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 50px;
            right: 50px;
            height: 2px;
            background: var(--border-color);
            z-index: 1;
        }

        .process-step {
            flex: 1;
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .step-num {
            width: 50px;
            height: 50px;
            background: var(--bg-card);
            border: 3px solid var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            margin: 0 auto 15px auto;
            color: var(--primary);
            box-shadow: 0 4px 10px rgba(0,0,0,0.05);
        }

        .process-step:hover .step-num {
            background: var(--primary);
            color: white;
            border-color: var(--neon-blue);
        }

        /* 案例中心 - 带图片 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .case-card {
            background: var(--bg-card);
            border-radius: 16px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.02);
            transition: all 0.3s;
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.08);
        }

        .case-img-container {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #e2e8f0;
        }

        .case-img-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .case-content {
            padding: 20px;
        }

        .case-tag {
            display: inline-block;
            background: var(--bg-main);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 4px;
            margin-bottom: 10px;
        }

        /* 对比评测 */
        .review-section {
            background: linear-gradient(135deg, rgba(0, 210, 255, 0.02), rgba(255, 0, 127, 0.02));
        }

        .rating-box {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            max-width: 600px;
            margin: 0 auto 40px auto;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0,0,0,0.02);
        }

        .rating-stars {
            font-size: 28px;
            color: #ffb700;
            margin-bottom: 10px;
        }

        .rating-score {
            font-size: 48px;
            font-weight: 900;
            color: var(--text-main);
        }

        .rating-score span {
            font-size: 20px;
            color: var(--text-muted);
        }

        .compare-table-wrapper {
            overflow-x: auto;
            background: var(--bg-card);
            border-radius: 16px;
            border: 1px solid var(--border-color);
            box-shadow: 0 10px 45px rgba(0,0,0,0.03);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 700px;
        }

        .compare-table th, .compare-table td {
            padding: 18px 24px;
            border-bottom: 1px solid var(--border-color);
        }

        .compare-table th {
            background: var(--bg-main);
            font-weight: 700;
        }

        .compare-table tr:hover {
            background: rgba(37, 99, 235, 0.01);
        }

        .highlight-col {
            background: rgba(37, 99, 235, 0.02);
            font-weight: 600;
        }

        /* Token 比价 */
        .token-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .token-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
            text-align: center;
        }

        .token-price {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            margin: 15px 0;
        }

        /* 培训业务 */
        .train-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
        }

        .train-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 20px;
            text-align: center;
            transition: all 0.3s;
        }

        .train-card:hover {
            border-color: var(--neon-pink);
            transform: translateY(-4px);
        }

        .train-icon {
            font-size: 32px;
            margin-bottom: 15px;
            display: block;
        }

        /* 用户评论 */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .comment-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 24px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.01);
        }

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

        .user-avatar-placeholder {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: var(--primary-glow);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
        }

        .user-meta h4 {
            font-size: 15px;
            font-weight: 700;
        }

        .user-meta span {
            font-size: 12px;
            color: var(--text-muted);
        }

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

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            margin-bottom: 12px;
            overflow: hidden;
        }

        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            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 cubic-bezier(0, 1, 0, 1);
            color: var(--text-muted);
            font-size: 15px;
        }

        .faq-item.active .faq-answer {
            padding: 0 24px 18px 24px;
            max-height: 1000px;
            transition: all 0.3s cubic-bezier(1, 0, 1, 0);
        }

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

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

        /* AI术语 & 最新文章 */
        .info-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
        }

        .article-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .article-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 16px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all 0.2s;
        }

        .article-item:hover {
            border-color: var(--neon-blue);
            transform: translateX(5px);
        }

        /* 表单与联系我们 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 50px;
        }

        .form-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 40px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.02);
        }

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

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-size: 14px;
            background: var(--bg-main);
            transition: border-color 0.3s;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
        }

        .contact-info-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 40px;
            display: flex;
            flex-direction: column;
            gap: 25px;
        }

        .qr-area {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .qr-area img {
            width: 120px;
            height: 120px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
        }

        /* Footer & 友情链接 */
        footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 60px 0 30px 0;
            font-size: 14px;
        }

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

        .footer-brand img {
            height: 35px;
            margin-bottom: 15px;
        }

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

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

        .footer-links ul li {
            margin-bottom: 10px;
        }

        .footer-links ul li a {
            color: #94a3b8;
        }

        .footer-links ul li a:hover {
            color: white;
        }

        .friend-links {
            border-top: 1px solid #1e293b;
            padding-top: 20px;
            margin-bottom: 20px;
        }

        .friend-links a {
            color: #64748b;
            margin-right: 15px;
            font-size: 13px;
        }

        .friend-links a:hover {
            color: white;
        }

        .copyright {
            border-top: 1px solid #1e293b;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            font-size: 12px;
        }

        /* 浮动客服 */
        .float-contact {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 50%;
            width: 60px;
            height: 60px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s;
        }

        .float-contact:hover {
            transform: scale(1.1);
            border-color: var(--neon-pink);
        }

        .float-panel {
            position: absolute;
            bottom: 70px;
            right: 0;
            width: 260px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 20px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            display: none;
            text-align: center;
        }

        .float-panel.show {
            display: block;
        }

        .float-panel img {
            width: 150px;
            height: 150px;
            margin: 0 auto 10px auto;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .stats-grid, .scene-grid, .case-grid, .token-grid, .comments-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .train-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .about-grid, .contact-grid, .info-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: var(--bg-card);
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                gap: 15px;
            }

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

            .menu-toggle {
                display: flex;
            }

            .stats-grid, .scene-grid, .case-grid, .token-grid, .comments-grid {
                grid-template-columns: 1fr;
            }
            .train-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-flow {
                flex-direction: column;
                gap: 30px;
            }

            .process-flow::before {
                display: none;
            }

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