:root {
            --bg-base: #f8fafc;
            --text-main: #0f172a;
            --text-muted: #475569;
            --primary: #6366f1;
            --primary-light: #818cf8;
            --secondary: #ec4899;
            --accent: #06b6d4;
            --card-bg: rgba(255, 255, 255, 0.75);
            --border-glow: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(236, 72, 153, 0.2), rgba(6, 182, 212, 0.2));
            --hologram-gradient: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(236, 72, 153, 0.15) 50%, rgba(6, 182, 212, 0.15) 100%);
            --rainbow-btn: linear-gradient(90deg, #6366f1, #ec4899, #06b6d4, #6366f1);
        }

        * {
            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;
            color: var(--text-main);
            background-color: var(--bg-base);
        }

        body {
            line-height: 1.6;
            overflow-x: hidden;
            background-image: 
                radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.08) 0px, transparent 50%),
                radial-gradient(at 100% 0%, rgba(236, 72, 153, 0.08) 0px, transparent 50%),
                radial-gradient(at 50% 100%, rgba(6, 182, 212, 0.08) 0px, transparent 50%);
            background-attachment: fixed;
        }

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

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(248, 250, 252, 0.8);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
            transition: all 0.3s ease;
        }

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

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

        .nav-links {
            display: flex;
            gap: 20px;
            align-items: center;
        }

        .nav-links a {
            text-decoration: none;
            color: var(--text-muted);
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s;
        }

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

        .nav-btn-group {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 20px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: var(--rainbow-btn);
            background-size: 300% 100%;
            color: #fff;
            box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
        }

        .btn-primary:hover {
            background-position: 100% 0;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
        }

        .btn-outline {
            background: transparent;
            color: var(--text-main);
            border: 1px solid rgba(99, 102, 241, 0.4);
        }

        .btn-outline:hover {
            background: rgba(99, 102, 241, 0.05);
            border-color: var(--primary);
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
        }

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--text-main);
            border-radius: 2px;
            transition: 0.3s;
        }

        /* 统一标题样式 */
        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-title h2 {
            font-size: 32px;
            font-weight: 800;
            background: linear-gradient(135deg, #1e293b 30%, #475569 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            position: relative;
            display: inline-block;
            margin-bottom: 10px;
        }

        .section-title p {
            color: var(--text-muted);
            font-size: 16px;
        }

        /* 首屏 Hero - 无图片 */
        .hero {
            padding: 160px 0 100px;
            text-align: center;
            position: relative;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, rgba(236, 72, 153, 0.15) 40%, transparent 70%);
            transform: translate(-50%, -50%);
            z-index: -1;
            filter: blur(50px);
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            background: rgba(255, 255, 255, 0.8);
            border: 1px solid rgba(99, 102, 241, 0.3);
            border-radius: 20px;
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 24px;
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.05);
        }

        .hero h1 {
            font-size: 48px;
            line-height: 1.2;
            font-weight: 900;
            background: linear-gradient(90deg, #312e81, #4f46e5, #db2777, #0891b2);
            background-size: 200% auto;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            animation: gradientMove 6s linear infinite;
            margin-bottom: 24px;
        }

        .hero-desc {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 36px;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 15px;
            flex-wrap: wrap;
        }

        /* 动态卡片样式 */
        .glass-card {
            background: var(--card-bg);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(226, 232, 240, 0.8);
            border-radius: 16px;
            padding: 30px;
            transition: all 0.3s ease;
            box-shadow: 0 4px 20px rgba(0,0,0,0.02);
        }

        .glass-card:hover {
            transform: translateY(-5px);
            border-color: rgba(99, 102, 241, 0.4);
            box-shadow: 0 10px 30px rgba(99, 102, 241, 0.1);
        }

        /* 数据指标卡片 */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-bottom: 80px;
        }

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

        .metric-num {
            font-size: 36px;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .metric-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 5px;
        }

        /* 通用 Section padding */
        section {
            padding: 80px 0;
            position: relative;
        }

        /* 关于我们 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 24px;
            margin-bottom: 15px;
            color: var(--text-main);
        }

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

        /* AIGC 服务与制作 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

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

        .service-card h3 {
            font-size: 20px;
            margin-bottom: 10px;
        }

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

        /* 解决方案与案例 - 双列/图文 */
        .media-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .media-image-container {
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
        }

        .media-image-container img {
            width: 100%;
            display: block;
            transition: transform 0.5s ease;
        }

        .media-image-container:hover img {
            transform: scale(1.05);
        }

        /* 流程时间线 */
        .timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .timeline-step {
            position: relative;
            padding-top: 30px;
        }

        .timeline-step::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--hologram-gradient);
            border-radius: 2px;
        }

        .step-num {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 14px;
            margin-bottom: 15px;
        }

        /* 对比评测表格 */
        .table-responsive {
            overflow-x: auto;
            background: var(--card-bg);
            border-radius: 16px;
            border: 1px solid rgba(226, 232, 240, 0.8);
            backdrop-filter: blur(8px);
        }

        table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }

        th, td {
            padding: 16px 20px;
            border-bottom: 1px solid rgba(226, 232, 240, 0.5);
            font-size: 14px;
        }

        th {
            background-color: rgba(99, 102, 241, 0.05);
            font-weight: 600;
        }

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

        .highlight-col {
            background-color: rgba(99, 102, 241, 0.02);
            font-weight: bold;
        }

        /* Token比价与模型列表 */
        .model-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 15px;
        }

        .model-tag {
            padding: 4px 10px;
            background: rgba(99, 102, 241, 0.05);
            border: 1px solid rgba(99, 102, 241, 0.1);
            border-radius: 6px;
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 需求匹配表单 */
        .form-section {
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.03) 0%, rgba(236, 72, 153, 0.03) 100%);
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .form-card {
            background: #ffffff;
            border-radius: 20px;
            padding: 40px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.03);
            border: 1px solid rgba(226, 232, 240, 0.8);
        }

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

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-main);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid rgba(226, 232, 240, 1);
            border-radius: 8px;
            font-size: 14px;
            background-color: #fafbfc;
            transition: all 0.3s;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            background-color: #ffffff;
            box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
        }

        /* FAQ折叠面板 */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: #ffffff;
            border: 1px solid rgba(226, 232, 240, 0.8);
            border-radius: 12px;
            overflow: hidden;
            transition: all 0.3s;
        }

        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            user-select: none;
        }

        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.3s ease-out;
            color: var(--text-muted);
            font-size: 14px;
        }

        .faq-item.active {
            border-color: var(--primary);
            box-shadow: 0 4px 15px rgba(99, 102, 241, 0.05);
        }

        .faq-item.active .faq-answer {
            padding: 0 24px 20px 24px;
            max-height: 200px;
        }

        .faq-icon::before {
            content: '+';
            font-size: 20px;
            color: var(--primary);
            font-weight: bold;
        }

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

        /* 评论卡片 */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

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

        .user-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--hologram-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: var(--primary);
        }

        .user-info h4 {
            font-size: 15px;
            font-weight: 600;
        }

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

        /* 文章列表 */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .article-card {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .article-card a {
            text-decoration: none;
            color: var(--text-main);
            font-weight: 600;
            display: block;
            margin-bottom: 10px;
            font-size: 15px;
        }

        .article-card a:hover {
            color: var(--primary);
        }

        /* 浮动客服 */
        .float-contact {
            position: fixed;
            right: 20px;
            bottom: 80px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-item {
            width: 50px;
            height: 50px;
            background: #ffffff;
            border: 1px solid rgba(226, 232, 240, 0.8);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(0,0,0,0.08);
            position: relative;
            transition: all 0.3s;
        }

        .float-item:hover {
            transform: scale(1.1);
            border-color: var(--primary);
        }

        .float-qrcode {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: #ffffff;
            padding: 10px;
            border-radius: 8px;
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: 0 4px 20px rgba(0,0,0,0.1);
            display: none;
            width: 140px;
            text-align: center;
        }

        .float-qrcode img {
            width: 120px;
            height: 120px;
            display: block;
        }

        .float-item:hover .float-qrcode {
            display: block;
        }

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

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            color: #ffffff;
            font-size: 16px;
            margin-bottom: 20px;
        }

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

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

        .footer-col ul li a {
            color: #94a3b8;
            text-decoration: none;
            transition: color 0.3s;
        }

        .footer-col ul li a:hover {
            color: #ffffff;
        }

        .footer-qr {
            width: 100px;
            height: 100px;
            border-radius: 6px;
            overflow: hidden;
            background: #ffffff;
            padding: 5px;
            margin-top: 10px;
        }

        .footer-qr img {
            width: 100%;
            height: auto;
        }

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

        .friendly-links h5 {
            color: #ffffff;
            margin-bottom: 10px;
        }

        .friendly-links-container {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }

        .friendly-links-container a {
            color: #64748b;
            text-decoration: none;
            font-size: 13px;
        }

        .friendly-links-container a:hover {
            color: #ffffff;
        }

        .copyright-area {
            border-top: 1px solid #1e293b;
            padding-top: 20px;
            margin-top: 30px;
            text-align: center;
            font-size: 12px;
            color: #64748b;
        }

        /* 动画声明 */
        @keyframes gradientMove {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .timeline {
                grid-template-columns: repeat(2, 1fr);
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: #ffffff;
                flex-direction: column;
                padding: 20px;
                border-bottom: 1px solid rgba(226, 232, 240, 0.8);
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
            }

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

            .menu-toggle {
                display: flex;
            }

            .about-grid, .media-grid, .form-grid, .footer-grid {
                grid-template-columns: 1fr;
            }

            .comments-grid {
                grid-template-columns: 1fr;
            }

            .hero h1 {
                font-size: 32px;
            }
            
            .timeline {
                grid-template-columns: 1fr;
            }
        }