:root {
            --primary: #10b981;
            --primary-hover: #059669;
            --primary-light: #ecfdf5;
            --secondary: #064e3b;
            --dark: #0f172a;
            --gray-light: #f8fafc;
            --border-color: #e2e8f0;
            --text-main: #334155;
            --text-muted: #64748b;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
            --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
            --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.05), 0 4px 6px -2px rgba(0,0,0,0.02);
            --transition: 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;
            color: var(--text-main);
            background-color: #fff;
        }

        body {
            line-height: 1.6;
            overflow-x: hidden;
            background: linear-gradient(180deg, #f0fdf4 0%, #ffffff 500px, #ffffff 100%);
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部导航 */
        header {
            position: sticky;
            top: 0;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            transition: var(--transition);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

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

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

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--secondary);
            letter-spacing: -0.5px;
        }

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

        .nav-menu a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-main);
            padding: 6px 12px;
            border-radius: 6px;
        }

        .nav-menu a:hover {
            color: var(--primary);
            background-color: var(--primary-light);
        }

        .nav-btn {
            background-color: var(--primary);
            color: #fff !important;
            padding: 8px 18px !important;
            border-radius: 20px !important;
            font-weight: 600 !important;
            box-shadow: 0 2px 4px rgba(16, 185, 129, 0.2);
        }

        .nav-btn:hover {
            background-color: var(--primary-hover) !important;
            box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
        }

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

        /* Hero首屏 - 严禁图片 */
        .hero {
            padding: 100px 0 80px 0;
            text-align: center;
            position: relative;
            background: radial-gradient(circle at 50% -20%, #d1fae5 0%, transparent 60%);
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background-color: #d1fae5;
            color: #065f46;
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 24px;
            border: 1px solid rgba(16, 185, 129, 0.2);
        }

        .hero h1 {
            font-size: 44px;
            font-weight: 800;
            color: var(--dark);
            line-height: 1.25;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }

        .hero h1 span {
            color: var(--primary);
        }

        .hero p {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 760px;
            margin: 0 auto 36px auto;
        }

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

        .btn-main {
            background-color: var(--primary);
            color: #fff;
            padding: 14px 32px;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
            border: none;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-main:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
        }

        .btn-sub {
            background-color: #fff;
            color: var(--secondary);
            border: 1px solid var(--border-color);
            padding: 14px 32px;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 600;
            box-shadow: var(--shadow-sm);
        }

        .btn-sub:hover {
            background-color: var(--gray-light);
            border-color: #cbd5e1;
            transform: translateY(-2px);
        }

        /* 核心数据卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 60px;
        }

        .stat-card {
            background: #fff;
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: 12px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }

        .stat-val {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }

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

        /* Section通用标题 */
        section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-color);
        }

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

        .section-header h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 12px;
        }

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

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

        .about-text h3 {
            font-size: 24px;
            color: var(--dark);
            margin-bottom: 16px;
            font-weight: 600;
        }

        .about-text p {
            font-size: 15px;
            color: var(--text-main);
            margin-bottom: 20px;
            line-height: 1.7;
        }

        .feature-bullets {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }

        .feature-bullets li {
            position: relative;
            padding-left: 24px;
            font-size: 14px;
            color: var(--text-main);
            font-weight: 500;
        }

        .feature-bullets li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: 700;
        }

        .about-visual {
            background-color: var(--primary-light);
            border-radius: 16px;
            padding: 30px;
            display: flex;
            flex-direction: column;
            gap: 20px;
            border: 1px solid rgba(16, 185, 129, 0.1);
        }

        /* 全平台AIGC服务 */
        .service-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            justify-content: center;
            margin-top: 24px;
        }

        .service-tag {
            background-color: var(--gray-light);
            color: var(--text-main);
            padding: 6px 12px;
            border-radius: 6px;
            font-size: 13px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .service-tag:hover {
            background-color: var(--primary-light);
            color: var(--primary-hover);
            border-color: var(--primary);
        }

        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

        .card-icon {
            width: 48px;
            height: 48px;
            background-color: var(--primary-light);
            color: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 20px;
        }

        .card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 12px;
        }

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

        /* 标准化流程与步骤 */
        .steps-wrapper {
            position: relative;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .step-item {
            text-align: center;
            position: relative;
        }

        .step-num {
            width: 40px;
            height: 40px;
            background-color: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            margin: 0 auto 16px auto;
            border: 4px solid var(--primary-light);
        }

        .step-item h4 {
            font-size: 16px;
            color: var(--dark);
            margin-bottom: 8px;
            font-weight: 600;
        }

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

        /* 对比评测表格 */
        .comparison-table-wrapper {
            overflow-x: auto;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }

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

        .comparison-table th, .comparison-table td {
            padding: 16px 24px;
            border-bottom: 1px solid var(--border-color);
            font-size: 14px;
        }

        .comparison-table th {
            background-color: var(--gray-light);
            font-weight: 600;
            color: var(--dark);
        }

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

        .highlight-col {
            background-color: rgba(16, 185, 129, 0.03);
            font-weight: 500;
        }

        .score-badge {
            display: inline-block;
            background: linear-gradient(135deg, #10b981, #059669);
            color: #fff;
            padding: 4px 12px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 14px;
        }

        /* 案例与素材展示 */
        .portfolio-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .portfolio-card {
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .portfolio-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .portfolio-img {
            aspect-ratio: 16 / 9;
            background-color: #f1f5f9;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }

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

        .portfolio-info {
            padding: 20px;
        }

        .portfolio-info h4 {
            font-size: 16px;
            color: var(--dark);
            margin-bottom: 6px;
            font-weight: 600;
        }

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

        /* 表单区域 */
        .form-section {
            background: linear-gradient(180deg, #fff 0%, #f0fdf4 100%);
        }

        .form-wrapper {
            max-width: 600px;
            margin: 0 auto;
            background: #fff;
            padding: 40px;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-lg);
        }

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

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 6px;
        }

        .form-control {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 14px;
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
        }

        textarea.form-control {
            resize: vertical;
            min-height: 100px;
        }

        /* FAQ折叠 */
        .faq-grid {
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: #fff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            overflow: hidden;
            transition: var(--transition);
        }

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

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

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

        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            background-color: var(--gray-light);
        }

        .faq-content-inner {
            padding: 20px 24px;
            font-size: 14px;
            color: var(--text-main);
            line-height: 1.6;
            border-top: 1px solid var(--border-color);
        }

        .faq-item.active .faq-content {
            max-height: 1000px;
            transition: max-height 0.5s ease-in-out;
        }

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

        .review-card {
            background-color: #fff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }

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

        .review-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background-color: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary);
            border: 1px solid var(--primary);
        }

        .review-meta h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--dark);
        }

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

        .review-body {
            font-size: 14px;
            color: var(--text-main);
            line-height: 1.6;
        }

        /* 资讯文章列表 */
        .articles-list {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .article-card {
            background-color: #fff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 16px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: var(--transition);
        }

        .article-card:hover {
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .article-card h4 {
            font-size: 13px;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 12px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card a {
            font-size: 12px;
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

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

        .sticky-btn {
            width: 50px;
            height: 50px;
            background-color: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
            cursor: pointer;
            transition: var(--transition);
            position: relative;
        }

        .sticky-btn:hover {
            background-color: var(--primary-hover);
            transform: scale(1.05);
        }

        .qr-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background-color: #fff;
            padding: 12px;
            border-radius: 8px;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-color);
            display: none;
            text-align: center;
            width: 140px;
        }

        .qr-popover img {
            width: 116px;
            height: 116px;
            margin-bottom: 6px;
        }

        .qr-popover span {
            font-size: 11px;
            color: var(--text-muted);
            display: block;
        }

        .sticky-btn:hover .qr-popover {
            display: block;
        }

        /* 页脚 */
        footer {
            background-color: #0f172a;
            color: #94a3b8;
            padding: 60px 0 30px 0;
            font-size: 13px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo img {
            height: 36px;
            margin-bottom: 16px;
        }

        .footer-col h5 {
            color: #f8fafc;
            font-size: 14px;
            margin-bottom: 16px;
            font-weight: 600;
        }

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

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

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

        .footer-qr {
            display: flex;
            gap: 16px;
            align-items: center;
        }

        .footer-qr img {
            width: 90px;
            height: 90px;
            border-radius: 4px;
            border: 2px solid #334155;
        }

        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .friend-links a {
            color: #64748b;
        }

        .friend-links a:hover {
            color: #94a3b8;
        }

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .grid-3, .portfolio-grid, .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .articles-list {
                grid-template-columns: repeat(3, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: block;
            }

            .nav-menu {
                position: absolute;
                top: 72px;
                left: 0;
                width: 100%;
                background: #fff;
                flex-direction: column;
                gap: 0;
                border-bottom: 1px solid var(--border-color);
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.3s ease-out;
            }

            .nav-menu.show {
                max-height: 400px;
            }

            .nav-menu li {
                width: 100%;
            }

            .nav-menu a {
                display: block;
                padding: 14px 24px;
                border-radius: 0;
                border-bottom: 1px solid #f1f5f9;
            }

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

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

            .steps-wrapper {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .grid-3, .portfolio-grid, .reviews-grid, .articles-list {
                grid-template-columns: 1fr;
            }

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

            .form-wrapper {
                padding: 24px;
            }
        }