:root {
            --bg-base: #0b0f19;
            --bg-surface: #131c2e;
            --bg-card: rgba(19, 28, 46, 0.75);
            --border-color: rgba(255, 0, 128, 0.25);
            --border-hover: rgba(0, 242, 254, 0.6);
            --text-main: #f1f5f9;
            --text-muted: #94a3b8;
            --primary-gradient: linear-gradient(135deg, #ff007f 0%, #7928ca 50%, #00f2fe 100%);
            --secondary-gradient: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
            --accent-glow: 0 0 25px rgba(255, 0, 127, 0.35);
            --container-max: 1280px;
            --radius: 16px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            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-main);
            line-height: 1.6;
            overflow-x: hidden;
            background-image: 
                radial-gradient(circle at 10% 20%, rgba(121, 40, 202, 0.15) 0%, transparent 40%),
                radial-gradient(circle at 90% 80%, rgba(0, 242, 254, 0.12) 0%, transparent 40%),
                radial-gradient(circle at 50% 50%, rgba(255, 0, 127, 0.08) 0%, transparent 60%);
            background-attachment: fixed;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        ul {
            list-style: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* 顶部导航栏 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 15, 25, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .nav-container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            height: 80px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 12px;
        }

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

        .brand-name {
            font-size: 20px;
            font-weight: 700;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: 0.5px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0;
        }

        .nav-links a {
            padding: 8px 12px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: #00f2fe;
            text-shadow: 0 0 10px rgba(0, 242, 254, 0.5);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 24px;
            font-size: 14px;
            font-weight: 600;
            border-radius: 30px;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            outline: none;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary-gradient);
            color: #fff;
            box-shadow: var(--accent-glow);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(255, 0, 127, 0.6);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid rgba(0, 242, 254, 0.5);
            color: #00f2fe;
        }

        .btn-outline:hover {
            background: rgba(0, 242, 254, 0.1);
            border-color: #00f2fe;
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-main);
            font-size: 24px;
            cursor: pointer;
        }

        /* 主体容器 */
        main {
            padding-top: 80px;
        }

        section {
            padding: 90px 0;
            position: relative;
        }

        .section-header {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 60px;
        }

        .section-tag {
            display: inline-block;
            padding: 6px 16px;
            font-size: 12px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            background: rgba(255, 0, 127, 0.1);
            border: 1px solid rgba(255, 0, 127, 0.3);
            border-radius: 20px;
            color: #ff007f;
            margin-bottom: 16px;
        }

        h1, h2, h3 {
            font-weight: 800;
            letter-spacing: -0.5px;
        }

        h2 {
            font-size: 38px;
            margin-bottom: 16px;
            background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        /* Hero 首屏 (无图片) */
        .hero-section {
            min-height: 90vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 120px 0 80px;
            position: relative;
        }

        .hero-content {
            max-width: 900px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            background: rgba(0, 242, 254, 0.1);
            border: 1px solid rgba(0, 242, 254, 0.3);
            border-radius: 30px;
            font-size: 13px;
            color: #00f2fe;
            margin-bottom: 24px;
            animation: pulseGlow 2s infinite;
        }

        @keyframes pulseGlow {
            0% { box-shadow: 0 0 0 0 rgba(0, 242, 254, 0.4); }
            70% { box-shadow: 0 0 0 10px rgba(0, 242, 254, 0); }
            100% { box-shadow: 0 0 0 0 rgba(0, 242, 254, 0); }
        }

        .hero-title {
            font-size: 52px;
            line-height: 1.15;
            margin-bottom: 24px;
            background: linear-gradient(135deg, #ffffff 20%, #ff007f 60%, #00f2fe 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-subtitle {
            font-size: 18px;
            color: var(--text-muted);
            margin-bottom: 40px;
            max-width: 750px;
            margin-left: auto;
            margin-right: auto;
        }

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

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 60px;
        }

        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 30px 20px;
            text-align: center;
            backdrop-filter: blur(10px);
            transition: var(--transition);
        }

        .stat-card:hover {
            border-color: var(--border-hover);
            transform: translateY(-5px);
        }

        .stat-number {
            font-size: 36px;
            font-weight: 800;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 8px;
        }

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

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

        .content-box h3 {
            font-size: 28px;
            margin-bottom: 20px;
            color: #fff;
        }

        .content-box p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 15px;
        }

        .feature-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 24px;
        }

        .feature-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-main);
        }

        .feature-item::before {
            content: "✓";
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 22px;
            height: 22px;
            background: rgba(0, 242, 254, 0.15);
            color: #00f2fe;
            border-radius: 50%;
            font-size: 12px;
            font-weight: 700;
        }

        /* 服务能力卡片 (网格布局) */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .service-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 36px 30px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .service-card:hover {
            border-color: var(--border-hover);
            transform: translateY(-6px);
            box-shadow: 0 10px 30px rgba(0, 242, 254, 0.1);
        }

        .service-icon {
            width: 50px;
            height: 50px;
            background: rgba(255, 0, 127, 0.1);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 24px;
            border: 1px solid rgba(255, 0, 127, 0.3);
        }

        .service-card h3 {
            font-size: 20px;
            margin-bottom: 12px;
            color: #fff;
        }

        .service-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        /* 一站式制作 & 行业方案 */
        .solutions-grid, .creation-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .sub-card {
            background: var(--bg-surface);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 12px;
            padding: 24px;
            transition: var(--transition);
        }

        .sub-card:hover {
            border-color: #ff007f;
            background: rgba(19, 28, 46, 0.95);
        }

        .sub-card h4 {
            font-size: 16px;
            margin-bottom: 10px;
            color: #fff;
        }

        .sub-card p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 标准流程 (时间线) */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .process-step {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 30px;
            position: relative;
            text-align: center;
        }

        .step-num {
            width: 45px;
            height: 45px;
            background: var(--primary-gradient);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin: 0 auto 20px;
            box-shadow: var(--accent-glow);
        }

        .process-step h4 {
            font-size: 18px;
            margin-bottom: 10px;
            color: #fff;
        }

        .process-step p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 对比评测表格 */
        .comparison-container {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            overflow: hidden;
            backdrop-filter: blur(10px);
        }

        .rating-banner {
            background: linear-gradient(90deg, rgba(255,0,127,0.15), rgba(0,242,254,0.15));
            padding: 24px 30px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid var(--border-color);
            flex-wrap: wrap;
            gap: 15px;
        }

        .rating-title h3 {
            font-size: 22px;
            color: #fff;
            margin-bottom: 4px;
        }

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

        .rating-score {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .stars {
            color: #ffcc00;
            font-size: 20px;
            letter-spacing: 2px;
        }

        .score-num {
            font-size: 28px;
            font-weight: 800;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
        }

        .comparison-table th, .comparison-table td {
            padding: 18px 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 14px;
        }

        .comparison-table th {
            background: rgba(11, 15, 25, 0.5);
            color: #fff;
            font-weight: 600;
        }

        .comparison-table td {
            color: var(--text-muted);
        }

        .comparison-table td:first-child {
            color: var(--text-main);
            font-weight: 600;
        }

        .highlight-col {
            color: #00f2fe !important;
            font-weight: 700;
        }

        /* Token 比价与模型支持 */
        .models-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            max-width: 900px;
            margin: 0 auto;
        }

        .model-badge {
            background: var(--bg-surface);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 10px 20px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            transition: var(--transition);
        }

        .model-badge:hover {
            border-color: #00f2fe;
            background: rgba(0, 242, 254, 0.1);
            transform: translateY(-2px);
        }

        /* 案例与文章展示 */
        .cases-grid, .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .card-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 24px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .card-item:hover {
            border-color: var(--border-hover);
            transform: translateY(-5px);
        }

        .card-item h4 {
            font-size: 18px;
            margin-bottom: 12px;
            color: #fff;
        }

        .card-item p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .card-link {
            font-size: 13px;
            color: #00f2fe;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

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

        .testimonial-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 28px;
            position: relative;
        }

        .testimonial-content {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
            font-style: italic;
        }

        .testimonial-author h5 {
            font-size: 16px;
            color: #fff;
            margin-bottom: 2px;
        }

        .testimonial-author span {
            font-size: 12px;
            color: #00f2fe;
        }

        /* FAQ 折叠面板 */
        .faq-container {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

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

        .faq-question {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            user-select: none;
        }

        .faq-question::after {
            content: "+";
            font-size: 20px;
            color: #00f2fe;
            transition: var(--transition);
        }

        .faq-item.active .faq-question::after {
            transform: rotate(45deg);
            color: #ff007f;
        }

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

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

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

        .form-box {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 40px;
            backdrop-filter: blur(10px);
        }

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

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            background: var(--bg-surface);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            color: #fff;
            font-size: 14px;
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: #00f2fe;
            box-shadow: 0 0 10px rgba(0, 242, 254, 0.2);
        }

        textarea.form-control {
            resize: vertical;
            min-height: 120px;
        }

        .contact-info-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .contact-info-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 20px;
            border-radius: var(--radius);
        }

        .contact-info-icon {
            font-size: 24px;
        }

        .contact-info-item h4 {
            font-size: 16px;
            color: #fff;
            margin-bottom: 4px;
        }

        .contact-info-item p {
            font-size: 14px;
            color: var(--text-muted);
        }

        .qr-box {
            margin-top: 10px;
            text-align: center;
        }

        .qr-box img {
            width: 120px;
            height: 120px;
            border-radius: 8px;
            border: 2px solid rgba(255, 255, 255, 0.1);
            background: #fff;
            padding: 4px;
        }

        /* 底部与友情链接 */
        footer {
            background: #070910;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 70px 0 30px;
            color: var(--text-muted);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 50px;
        }

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

        .footer-col p {
            font-size: 14px;
            margin-bottom: 16px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: #00f2fe;
            padding-left: 4px;
        }

        .friend-links-wrap {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 30px;
            margin-bottom: 30px;
        }

        .friend-links-wrap h5 {
            font-size: 14px;
            color: #fff;
            margin-bottom: 12px;
        }

        .friend-links-list {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .friend-links-list a {
            font-size: 13px;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .friend-links-list a:hover {
            color: #00f2fe;
        }

        .footer-bottom {
            text-align: center;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 25px;
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 浮动客服入口 */
        .floating-kefu {
            position: fixed;
            right: 30px;
            bottom: 40px;
            z-index: 999;
            background: var(--primary-gradient);
            color: #fff;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 5px 25px rgba(255, 0, 127, 0.5);
            cursor: pointer;
            transition: var(--transition);
            font-size: 24px;
        }

        .floating-kefu:hover {
            transform: scale(1.1);
        }

        .floating-popup {
            position: absolute;
            right: 70px;
            bottom: 0;
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            padding: 16px;
            border-radius: var(--radius);
            width: 200px;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0,0,0,0.5);
            display: none;
            animation: fadeIn 0.3s ease;
        }

        .floating-kefu:hover .floating-popup {
            display: block;
        }

        .floating-popup img {
            width: 140px;
            height: 140px;
            border-radius: 8px;
            margin-bottom: 8px;
        }

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

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* 响应式适配 */
        @media (max-width: 1024px) {
            .stats-grid, .services-grid, .solutions-grid, .creation-grid, .process-steps, .cases-grid, .articles-grid, .testimonials-grid, .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-grid, .intro-grid, .contact-grid {
                grid-template-columns: 1fr;
            }
            .nav-links {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
        }

        @media (max-width: 768px) {
            .stats-grid, .services-grid, .solutions-grid, .creation-grid, .process-steps, .cases-grid, .articles-grid, .testimonials-grid, .footer-grid {
                grid-template-columns: 1fr;
            }
            .hero-title {
                font-size: 36px;
            }
            h2 {
                font-size: 28px;
            }
        }