:root {
            --primary: #4f46e5;
            --primary-light: #818cf8;
            --secondary: #ec4899;
            --accent: #06b6d4;
            --bg-base: #f8fafc;
            --text-main: #0f172a;
            --text-muted: #475569;
            --card-bg: rgba(255, 255, 255, 0.9);
            --gradient-accent: linear-gradient(135deg, #4f46e5 0%, #ec4899 50%, #06b6d4 100%);
            --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background: linear-gradient(135deg, #f5f3ff 0%, #f0fdfa 50%, #eff6ff 100%);
            color: var(--text-main);
            min-height: 100vh;
        }

        body {
            overflow-x: hidden;
            line-height: 1.6;
        }

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

        /* 顶部导航 */
        header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
            transition: var(--transition-smooth);
        }

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

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

        .brand img {
            height: 40px;
            width: auto;
        }

        nav {
            display: flex;
            align-items: center;
            gap: 24px;
        }

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

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

        .btn-nav-action {
            background: var(--gradient-accent);
            color: white;
            padding: 8px 18px;
            border-radius: 9999px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition-smooth);
            text-decoration: none;
            display: inline-block;
        }

        .btn-nav-action:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(79, 70, 229, 0.4);
            color: white;
        }

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

        /* Section 通用样式 */
        section {
            padding: 80px 0;
            border-bottom: 1px solid rgba(226, 232, 240, 0.5);
        }

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

        .section-title h2 {
            font-size: 32px;
            font-weight: 800;
            background: var(--gradient-accent);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 12px;
        }

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

        /* Hero 首屏 (无图片) */
        .hero {
            padding: 120px 0 90px 0;
            text-align: center;
            background: radial-gradient(circle at top, rgba(236, 72, 153, 0.1) 0%, rgba(79, 70, 229, 0.05) 50%, transparent 100%);
        }

        .hero h1 {
            font-size: 42px;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 24px;
            color: var(--text-main);
        }

        .hero h1 span {
            background: var(--gradient-accent);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            display: block;
            margin-top: 10px;
        }

        .hero p {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 40px auto;
            line-height: 1.8;
        }

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

        .btn-primary {
            background: var(--gradient-accent);
            color: white;
            padding: 14px 32px;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 700;
            text-decoration: none;
            transition: var(--transition-smooth);
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(79, 70, 229, 0.35);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(79, 70, 229, 0.5);
        }

        .btn-secondary {
            background: white;
            color: var(--text-main);
            padding: 14px 32px;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 700;
            text-decoration: none;
            transition: var(--transition-smooth);
            border: 2px solid rgba(226, 232, 240, 1);
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            background: rgba(245, 243, 255, 0.5);
            transform: translateY(-3px);
        }

        /* 平台亮点微卡片 */
        .hero-highlights {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
            margin-top: 60px;
        }

        .highlight-card {
            background: var(--card-bg);
            border: 1px solid rgba(255, 255, 255, 0.8);
            border-radius: 12px;
            padding: 20px;
            box-shadow: 0 10px 25px -5px rgba(79, 70, 229, 0.05);
            text-align: left;
            transition: var(--transition-smooth);
        }

        .highlight-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px -5px rgba(236, 72, 153, 0.15);
        }

        .highlight-card h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--primary);
        }

        .highlight-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
            margin: 0;
        }

        /* 平台介绍 & 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: 16px;
            color: var(--text-main);
        }

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

        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .about-feat-item {
            background: white;
            padding: 16px;
            border-radius: 8px;
            border-left: 4px solid var(--secondary);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
        }

        .about-feat-item h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .about-feat-item p {
            font-size: 12px;
            margin: 0;
        }

        .about-stats {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .stat-box {
            background: var(--gradient-accent);
            padding: 30px;
            border-radius: 16px;
            color: white;
            text-align: center;
        }

        .stat-box .num {
            font-size: 40px;
            font-weight: 800;
            display: block;
            margin-bottom: 5px;
        }

        .stat-box .label {
            font-size: 14px;
            opacity: 0.9;
        }

        /* 服务能力卡片 */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .service-card {
            background: var(--card-bg);
            border-radius: 16px;
            padding: 30px;
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
            transition: var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(79, 70, 229, 0.1);
            border-color: var(--primary-light);
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--gradient-accent);
        }

        .service-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-main);
        }

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

        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-list span {
            background: rgba(79, 70, 229, 0.08);
            color: var(--primary);
            font-size: 12px;
            padding: 4px 10px;
            border-radius: 4px;
            font-weight: 500;
        }

        /* 一站式AIGC制作与方版素材图 */
        .showcase-block {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
            align-items: center;
        }

        .showcase-img-box {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
        }

        .showcase-img-box img {
            width: 100%;
            height: auto;
            display: block;
            transition: var(--transition-smooth);
        }

        .showcase-img-box:hover img {
            transform: scale(1.03);
        }

        .showcase-content h3 {
            font-size: 28px;
            margin-bottom: 16px;
        }

        .feature-list {
            list-style: none;
            margin-bottom: 30px;
        }

        .feature-list li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 12px;
            font-size: 15px;
            color: var(--text-muted);
        }

        .feature-list li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--secondary);
            font-weight: 900;
            font-size: 18px;
        }

        /* 流程步骤 */
        .steps-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
            position: relative;
        }

        .step-card {
            background: white;
            border-radius: 12px;
            padding: 24px;
            text-align: center;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
            border: 1px solid rgba(226, 232, 240, 0.5);
            transition: var(--transition-smooth);
        }

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

        .step-num {
            width: 48px;
            height: 48px;
            background: var(--gradient-accent);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            margin: 0 auto 16px auto;
        }

        .step-card h3 {
            font-size: 16px;
            margin-bottom: 8px;
        }

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

        /* 对比表格 */
        .table-responsive {
            overflow-x: auto;
            background: white;
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
            border: 1px solid rgba(226, 232, 240, 0.8);
        }

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

        th, td {
            padding: 16px 24px;
            border-bottom: 1px solid rgba(226, 232, 240, 0.5);
            font-size: 14px;
        }

        th {
            background: rgba(248, 250, 252, 0.8);
            font-weight: 700;
            color: var(--text-main);
        }

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

        .badge-best {
            background: var(--secondary);
            color: white;
            padding: 4px 8px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 700;
        }

        /* Token 比价 */
        .price-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        .price-card {
            background: white;
            border-radius: 12px;
            padding: 24px;
            border: 1px solid rgba(226, 232, 240, 0.6);
            transition: var(--transition-smooth);
        }

        .price-card:hover {
            box-shadow: 0 12px 24px rgba(79, 70, 229, 0.08);
            border-color: var(--primary-light);
        }

        .price-card h3 {
            font-size: 18px;
            margin-bottom: 10px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .price-val {
            font-size: 24px;
            color: var(--secondary);
            font-weight: 800;
        }

        .price-unit {
            font-size: 12px;
            color: var(--text-muted);
            font-weight: normal;
        }

        /* 案例中心与宣传图 */
        .banner-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-bottom: 30px;
        }

        .banner-grid img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 12px;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
            transition: var(--transition-smooth);
        }

        .banner-grid img:hover {
            transform: scale(1.02);
            box-shadow: 0 12px 25px rgba(0, 0, 0, 0.1);
        }

        /* 横版素材图展示 */
        .wide-images {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 30px;
        }

        .wide-images img {
            width: 100%;
            height: auto;
            border-radius: 12px;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
        }

        /* 培训版块 */
        .training-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .train-card {
            background: var(--card-bg);
            border: 1px solid rgba(226, 232, 240, 0.8);
            border-radius: 12px;
            padding: 24px;
            text-align: center;
            transition: var(--transition-smooth);
        }

        .train-card:hover {
            transform: translateY(-5px);
            border-color: var(--accent);
            box-shadow: 0 10px 25px rgba(6, 182, 212, 0.1);
        }

        .train-card h3 {
            font-size: 16px;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .train-badge {
            background: rgba(6, 182, 212, 0.1);
            color: var(--accent);
            padding: 4px 12px;
            border-radius: 99px;
            font-size: 12px;
            display: inline-block;
            margin-top: 10px;
            font-weight: 600;
        }

        /* 用户评论 */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }

        .testimonial-card {
            background: white;
            border-radius: 12px;
            padding: 24px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
            border: 1px solid rgba(226, 232, 240, 0.6);
            transition: var(--transition-smooth);
        }

        .testimonial-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
        }

        .testi-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 16px;
        }

        .testi-user {
            font-weight: 700;
            color: var(--text-main);
        }

        .testi-role {
            font-size: 12px;
            color: var(--text-muted);
            background: #f1f5f9;
            padding: 2px 8px;
            border-radius: 4px;
        }

        .testi-content {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 资讯 / 知识库 */
        .articles-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }

        .article-card {
            background: white;
            border-radius: 12px;
            padding: 24px;
            border: 1px solid rgba(226, 232, 240, 0.6);
            transition: var(--transition-smooth);
        }

        .article-card:hover {
            border-color: var(--primary);
            box-shadow: 0 8px 24px rgba(79, 70, 229, 0.05);
        }

        .article-card h3 {
            font-size: 16px;
            margin-bottom: 12px;
        }

        .article-card a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

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

        /* 需求匹配表单与联系我们 */
        .contact-section-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 40px;
        }

        .form-box {
            background: white;
            border-radius: 16px;
            padding: 40px;
            box-shadow: 0 15px 35px 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-radius: 8px;
            border: 1px solid rgba(226, 232, 240, 1);
            font-size: 14px;
            outline: none;
            transition: var(--transition-smooth);
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
        }

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

        .contact-info {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .info-card {
            background: var(--card-bg);
            border-radius: 12px;
            padding: 30px;
            border: 1px solid rgba(226, 232, 240, 0.8);
            margin-bottom: 20px;
        }

        .info-card h3 {
            font-size: 18px;
            margin-bottom: 15px;
        }

        .info-item {
            margin-bottom: 12px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .qrcode-box {
            display: flex;
            gap: 20px;
            align-items: center;
            margin-top: 20px;
        }

        .qrcode-box img {
            width: 110px;
            height: 110px;
            border: 1px solid #e2e8f0;
            padding: 5px;
            border-radius: 8px;
            background: white;
        }

        .qrcode-desc {
            font-size: 13px;
            color: var(--text-muted);
        }

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

        .faq-item {
            background: white;
            border-radius: 8px;
            margin-bottom: 12px;
            border: 1px solid rgba(226, 232, 240, 0.8);
            overflow: hidden;
        }

        .faq-header {
            width: 100%;
            padding: 20px;
            text-align: left;
            background: none;
            border: none;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-header::after {
            content: "+";
            font-size: 20px;
            color: var(--text-muted);
            transition: var(--transition-smooth);
        }

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

        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: rgba(248, 250, 252, 0.5);
        }

        .faq-content {
            padding: 20px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 标签云与术语 */
        .terms-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-cloud span {
            background: white;
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 13px;
            border: 1px solid rgba(226, 232, 240, 0.8);
            transition: var(--transition-smooth);
            cursor: default;
        }

        .tag-cloud span:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: scale(1.05);
        }

        /* 页脚与友情链接 */
        footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 60px 0 30px 0;
        }

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

        .footer-brand img {
            height: 40px;
            margin-bottom: 20px;
        }

        .footer-title {
            color: white;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
        }

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

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

        .footer-links a {
            color: #94a3b8;
            text-decoration: none;
            transition: var(--transition-smooth);
            font-size: 14px;
        }

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

        .friend-links {
            border-top: 1px solid #1e293b;
            padding-top: 20px;
            margin-bottom: 20px;
            font-size: 13px;
        }

        .friend-links a {
            color: #64748b;
            text-decoration: none;
            margin-right: 15px;
            display: inline-block;
        }

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

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

        /* 浮动客服入口 */
        .float-contact {
            position: fixed;
            right: 20px;
            bottom: 20px;
            z-index: 99;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--gradient-accent);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
            cursor: pointer;
            position: relative;
            transition: var(--transition-smooth);
        }

        .float-btn:hover {
            transform: scale(1.1);
        }

        .float-qr {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: white;
            padding: 10px;
            border-radius: 8px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            display: none;
            text-align: center;
        }

        .float-qr img {
            width: 100px;
            height: 100px;
            display: block;
        }

        .float-qr span {
            font-size: 11px;
            color: var(--text-main);
            margin-top: 5px;
            display: block;
        }

        .float-btn:hover .float-qr {
            display: block;
        }

        /* 响应式媒体查询 */
        @media (max-width: 992px) {
            .about-grid, .showcase-block, .contact-section-grid, .terms-grid {
                grid-template-columns: 1fr;
            }

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

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

        @media (max-width: 768px) {
            nav {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: white;
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 10px 15px rgba(0, 0, 0, 0.05);
                border-bottom: 1px solid #e2e8f0;
                gap: 16px;
            }

            nav.show {
                display: flex;
            }

            .menu-toggle {
                display: block;
            }

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

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

            .wide-images {
                grid-template-columns: 1fr;
            }
        }