:root {
            --bg-base: #f6f8fd;
            --bg-card: #ffffff;
            --text-dark: #0f172a;
            --text-muted: #475569;
            --color-primary: #10b981; /* 荧光绿偏深以保证对比度 */
            --color-accent: #8b5cf6;  /* 荧光紫 */
            --color-pink: #ec4899;    /* 荧光粉 */
            --border-neon: linear-gradient(135deg, #10b981 0%, #8b5cf6 50%, #ec4899 100%);
            --shadow-neon: 0 8px 30px rgba(16, 185, 129, 0.08);
            --shadow-hover: 0 20px 40px rgba(139, 92, 246, 0.15);
            --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-base);
            color: var(--text-dark);
            line-height: 1.6;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
        }

        /* 统一布局容器 */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
        }

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

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

        .ai-page-logo {
            height: 40px;
            width: auto;
        }

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

        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            padding: 8px 12px;
            border-radius: 6px;
        }

        .nav-link:hover {
            color: var(--color-accent);
            background: rgba(139, 92, 246, 0.05);
        }

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

        .btn-neon-sm {
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            border: 1px solid var(--color-primary);
            color: var(--color-primary);
            background: transparent;
            transition: all 0.3s;
        }

        .btn-neon-sm:hover {
            background: var(--color-primary);
            color: #fff;
            box-shadow: 0 0 10px rgba(16, 185, 129, 0.4);
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--text-dark);
        }

        /* Hero首屏 - 炫彩荧光风 - 纯文本/CSS视觉 */
        .hero-section {
            padding: 160px 0 100px 0;
            background: radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.08) 0%, transparent 50%),
                        radial-gradient(circle at 20% 80%, rgba(139, 92, 246, 0.08) 0%, transparent 50%),
                        var(--bg-base);
            text-align: center;
            position: relative;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            border-radius: 30px;
            background: linear-gradient(90deg, rgba(16, 185, 129, 0.1), rgba(139, 92, 246, 0.1));
            border: 1px solid rgba(139, 92, 246, 0.2);
            color: var(--color-accent);
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
            animation: pulse 2s infinite;
        }

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

        .hero-title {
            font-size: 42px;
            font-weight: 850;
            letter-spacing: -1px;
            line-height: 1.2;
            color: var(--text-dark);
            margin-bottom: 24px;
            background: linear-gradient(135deg, #0f172a 30%, #3b82f6 70%, #8b5cf6 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 40px auto;
        }

        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-primary-neon {
            padding: 14px 32px;
            border-radius: 30px;
            font-size: 16px;
            font-weight: 700;
            color: #ffffff;
            background: linear-gradient(90deg, #10b981, #8b5cf6);
            box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4);
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .btn-primary-neon:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(139, 92, 246, 0.6);
        }

        .btn-secondary-outline {
            padding: 14px 32px;
            border-radius: 30px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            background: #ffffff;
            border: 2px solid rgba(226, 232, 240, 1);
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .btn-secondary-outline:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        /* 核心卖点快速指标栏 */
        .metrics-bar {
            margin-top: 60px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 24px;
            box-shadow: var(--shadow-neon);
            border: 1px solid rgba(16, 185, 129, 0.15);
            transition: all 0.3s;
        }

        .metric-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: var(--color-accent);
        }

        .metric-num {
            font-size: 32px;
            font-weight: 800;
            background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 8px;
        }

        .metric-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 600;
        }

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

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

        .section-tag {
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--color-accent);
            margin-bottom: 12px;
            display: inline-block;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-dark);
        }

        /* 双列布局 */
        .grid-2col {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        /* 卡片网格布局 */
        .grid-3col {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        /* 卡片通用样式 */
        .neon-card {
            background: var(--bg-card);
            border-radius: 20px;
            padding: 30px;
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: var(--shadow-neon);
            transition: all 0.3s ease;
        }

        .neon-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(139, 92, 246, 0.4);
        }

        /* 关于我们 & 平台介绍 */
        .intro-text p {
            margin-bottom: 16px;
            color: var(--text-muted);
            font-size: 15px;
        }

        .intro-features {
            list-style: none;
            margin-top: 24px;
        }

        .intro-features li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 12px;
            font-weight: 500;
            color: var(--text-dark);
        }

        .intro-features li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--color-primary);
            font-weight: 900;
            font-size: 16px;
        }

        /* AIGC 服务卡片 */
        .service-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 24px;
            margin-bottom: 20px;
        }

        .service-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .service-desc {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .tags-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .tag-badge {
            font-size: 11px;
            padding: 2px 8px;
            border-radius: 4px;
            background: #f1f5f9;
            color: var(--text-muted);
        }

        /* 技术支撑与支持模型 */
        .marquee-container {
            background: #ffffff;
            padding: 30px 0;
            overflow: hidden;
            white-space: nowrap;
            position: relative;
            border-top: 1px solid #e2e8f0;
            border-bottom: 1px solid #e2e8f0;
        }

        .marquee-content {
            display: inline-block;
            animation: marquee 25s linear infinite;
        }

        .marquee-item {
            display: inline-block;
            margin-right: 40px;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-muted);
            transition: color 0.3s;
        }

        .marquee-item:hover {
            color: var(--color-accent);
        }

        @keyframes marquee {
            0% { transform: translateX(0%); }
            100% { transform: translateX(-50%); }
        }

        /* 流程步骤 */
        .step-timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
            margin-top: 40px;
        }

        .step-timeline::before {
            content: "";
            position: absolute;
            top: 24px;
            left: 10%;
            width: 80%;
            height: 2px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
            z-index: 1;
        }

        .step-node {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--bg-card);
            border: 3px solid var(--color-primary);
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            box-shadow: var(--shadow-neon);
            margin-bottom: 16px;
            transition: all 0.3s;
        }

        .step-node:hover .step-number {
            background: var(--color-accent);
            border-color: var(--color-accent);
            color: #ffffff;
            box-shadow: var(--shadow-hover);
        }

        .step-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .step-desc {
            font-size: 13px;
            color: var(--text-muted);
            padding: 0 10px;
        }

        /* 对比评测及Token比价 */
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border-radius: 12px;
            box-shadow: var(--shadow-neon);
            background: var(--bg-card);
            border: 1px solid rgba(226, 232, 240, 1);
        }

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

        th, td {
            padding: 16px 20px;
            border-bottom: 1px solid #f1f5f9;
        }

        th {
            background-color: #f8fafc;
            color: var(--text-dark);
            font-weight: 700;
        }

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

        .highlight-col {
            background-color: rgba(16, 185, 129, 0.03);
            font-weight: 600;
        }

        .badge-star {
            color: #f59e0b;
            font-size: 14px;
            font-weight: bold;
        }

        /* 案例展示区 */
        .case-gallery {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .case-card {
            background: var(--bg-card);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-neon);
            border: 1px solid rgba(226, 232, 240, 0.8);
            transition: all 0.3s;
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }

        .case-img-wrap {
            width: 100%;
            height: 240px;
            overflow: hidden;
            background: #e2e8f0;
            display: flex;
            align-items: center;
            justify-content: center;
        }

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

        .case-info {
            padding: 24px;
        }

        .case-category {
            font-size: 12px;
            color: var(--color-accent);
            font-weight: 700;
            margin-bottom: 8px;
        }

        .case-name {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .case-intro {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* 用户评论区 */
        .reviews-container {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .review-card {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 24px;
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: var(--shadow-neon);
        }

        .review-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }

        .review-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #ffffff;
            font-weight: 700;
        }

        .review-userinfo h4 {
            font-size: 14px;
            font-weight: 700;
        }

        .review-userinfo p {
            font-size: 12px;
            color: var(--text-muted);
        }

        .review-content {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* 需求匹配表单区 */
        .form-section {
            background: linear-gradient(135deg, rgba(16, 185, 129, 0.03) 0%, rgba(139, 92, 246, 0.03) 100%), #ffffff;
            border-radius: 24px;
            padding: 48px;
            border: 1px solid rgba(139, 92, 246, 0.15);
            box-shadow: var(--shadow-neon);
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

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

        .form-group.full-width {
            grid-column: span 2;
        }

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

        .form-input, .form-select, .form-textarea {
            width: 100%;
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid #cbd5e1;
            background: #ffffff;
            color: var(--text-dark);
            font-size: 14px;
            outline: none;
            transition: all 0.3s;
        }

        .form-input:focus, .form-select:focus, .form-textarea:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
        }

        /* FAQ折叠菜单 */
        .faq-list {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: 12px;
            margin-bottom: 12px;
            border: 1px solid #e2e8f0;
            box-shadow: 0 2px 5px rgba(0,0,0,0.01);
            overflow: hidden;
        }

        .faq-question {
            padding: 20px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 700;
            font-size: 15px;
            transition: all 0.3s;
        }

        .faq-question:hover {
            background: #f8fafc;
            color: var(--color-accent);
        }

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

        .faq-item.active .faq-answer {
            padding: 20px 24px;
            max-height: 500px;
            border-top: 1px solid #f1f5f9;
        }

        .faq-icon {
            font-size: 18px;
            transition: transform 0.3s;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        /* 文章列表 */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .article-card {
            background: var(--bg-card);
            border-radius: 12px;
            padding: 24px;
            border: 1px solid #e2e8f0;
            transition: all 0.3s;
        }

        .article-card:hover {
            transform: translateY(-3px);
            border-color: var(--color-primary);
        }

        .article-title {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .article-link {
            color: var(--color-accent);
            font-size: 13px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* 页脚区域 */
        footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 80px 0 30px 0;
            border-top: 1px solid #1e293b;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 2fr;
            gap: 40px;
            margin-bottom: 60px;
        }

        .footer-col h4 {
            color: #ffffff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 24px;
        }

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

        .footer-links li {
            margin-bottom: 12px;
        }

        .footer-links a {
            color: #94a3b8;
            font-size: 14px;
        }

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

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

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

        .qr-box {
            text-align: center;
            width: 100px;
        }

        .qr-box img {
            width: 80px;
            height: 80px;
            border-radius: 8px;
            background: #fff;
            padding: 4px;
        }

        .qr-box p {
            font-size: 11px;
            margin-top: 4px;
        }

        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 13px;
        }

        .friend-links {
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid #1e293b;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }

        .friend-links span {
            font-size: 13px;
            font-weight: 600;
            color: #ffffff;
        }

        .friend-links a {
            color: #64748b;
            font-size: 13px;
            transition: color 0.3s;
        }

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

        /* 浮动客服入口 */
        .float-widget {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .widget-item {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--bg-card);
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            border: 1px solid #e2e8f0;
            position: relative;
            transition: all 0.3s;
        }

        .widget-item:hover {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-hover);
        }

        .widget-item .popover {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: #ffffff;
            border-radius: 12px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.15);
            padding: 16px;
            display: none;
            text-align: center;
            border: 1px solid #e2e8f0;
            min-width: 140px;
        }

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

        .widget-item .popover img {
            width: 100px;
            height: 100px;
            margin-bottom: 8px;
        }

        /* 响应式适配 */
        @media (max-width: 1024px) {
            .grid-3col {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-timeline {
                grid-template-columns: repeat(2, 1fr);
                gap: 40px;
            }
            .step-timeline::before {
                display: none;
            }
            .metrics-bar {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: #ffffff;
                border-bottom: 1px solid #e2e8f0;
                flex-direction: column;
                padding: 20px;
                gap: 12px;
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: block;
            }
            .grid-2col {
                grid-template-columns: 1fr;
            }
            .hero-title {
                font-size: 32px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .grid-3col, .reviews-container, .article-grid {
                grid-template-columns: 1fr;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .form-group.full-width {
                grid-column: span 1;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .case-gallery {
                grid-template-columns: 1fr;
            }
        }