:root {
            --primary: #ff5722;
            --primary-hover: #f4511e;
            --secondary: #ff9800;
            --accent: #ff3d00;
            --dark: #212121;
            --light-gray: #f9f9f9;
            --border-color: #e0e0e0;
            --text-main: #333333;
            --text-muted: #757575;
            --container-width: 1200px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans CJK SC", sans-serif;
            color: var(--text-main);
            background-color: #ffffff;
            line-height: 1.6;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.3s ease;
        }

        a:hover {
            color: var(--accent);
        }

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

        /* 顶部导航 */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(10px);
        }

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

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

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

        .brand-name {
            font-size: 20px;
            font-weight: 700;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        .nav-menu a {
            color: var(--dark);
            font-size: 14px;
            font-weight: 500;
            padding: 5px 0;
            border-bottom: 2px solid transparent;
        }

        .nav-menu a:hover, .nav-menu a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }

        .nav-btn {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #ffffff !important;
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 4px 10px rgba(255, 87, 34, 0.2);
            transition: all 0.3s ease;
        }

        .nav-btn:hover {
            box-shadow: 0 6px 15px rgba(255, 87, 34, 0.4);
            transform: translateY(-1px);
        }

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

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

        /* 首屏 Hero (无图) */
        .hero {
            background: radial-gradient(circle at top right, rgba(255, 152, 0, 0.05), transparent),
                        radial-gradient(circle at bottom left, rgba(255, 87, 34, 0.05), transparent);
            padding: 100px 0 80px 0;
            text-align: center;
            border-bottom: 1px solid var(--light-gray);
        }

        .hero-badge {
            display: inline-block;
            background-color: rgba(255, 87, 34, 0.1);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
            letter-spacing: 1px;
        }

        .hero h1 {
            font-size: 42px;
            font-weight: 800;
            color: var(--dark);
            line-height: 1.25;
            margin-bottom: 24px;
            letter-spacing: -0.5px;
        }

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

        .hero-ctas {
            display: flex;
            justify-content: center;
            gap: 16px;
            margin-bottom: 50px;
        }

        .btn {
            display: inline-block;
            padding: 14px 32px;
            border-radius: 30px;
            font-size: 16px;
            font-weight: 600;
            transition: all 0.3s ease;
            cursor: pointer;
            text-align: center;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #ffffff;
            box-shadow: 0 10px 20px rgba(255, 61, 0, 0.2);
        }

        .btn-primary:hover {
            box-shadow: 0 12px 25px rgba(255, 61, 0, 0.3);
            transform: translateY(-2px);
            color: #ffffff;
        }

        .btn-secondary {
            background-color: #ffffff;
            color: var(--dark);
            border: 1px solid var(--border-color);
        }

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

        /* 统一标题与布局 */
        section {
            padding: 80px 0;
            border-bottom: 1px solid #f0f0f0;
        }

        .section-light {
            background-color: var(--light-gray);
        }

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

        .section-header h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .section-header h2::after {
            content: '';
            display: block;
            width: 50px;
            height: 4px;
            background-color: var(--primary);
            margin: 10px auto 0 auto;
            border-radius: 2px;
        }

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

        /* 数据指标 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 30px 20px;
            border-radius: 12px;
            text-align: center;
            transition: all 0.3s ease;
        }

        .stat-card:hover {
            box-shadow: 0 10px 25px rgba(0,0,0,0.05);
            transform: translateY(-5px);
        }

        .stat-card .num {
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }

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

        /* 关于我们 */
        .about-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 24px;
            margin-bottom: 20px;
            color: var(--dark);
        }

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

        .about-image img {
            border-radius: 12px;
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }

        /* 全平台AIGC服务 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            transition: all 0.3s ease;
        }

        .service-card:hover {
            border-color: var(--primary);
            box-shadow: 0 10px 30px rgba(255, 87, 34, 0.08);
            transform: translateY(-5px);
        }

        .service-card h3 {
            font-size: 20px;
            margin-bottom: 15px;
            color: var(--dark);
        }

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

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

        .model-tag {
            font-size: 11px;
            background-color: var(--light-gray);
            color: var(--dark);
            padding: 2px 8px;
            border-radius: 4px;
            border: 1px solid var(--border-color);
        }

        /* 一站式AIGC制作 & 解决方案 */
        .grid-2col {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .img-container img {
            width: 100%;
            border-radius: 12px;
            box-shadow: 0 10px 20px rgba(0,0,0,0.05);
        }

        /* 服务网络与标准化流程 */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .step-item {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 30px 20px;
            border-radius: 8px;
            text-align: center;
            position: relative;
        }

        .step-num {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #ffffff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            margin: 0 auto 20px auto;
        }

        .step-item h4 {
            font-size: 16px;
            margin-bottom: 10px;
        }

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

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

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

        .comparison-table th, .comparison-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-color);
        }

        .comparison-table th {
            background-color: var(--light-gray);
            font-weight: 700;
            color: var(--dark);
        }

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

        .comparison-table tr.highlight {
            background-color: rgba(255, 87, 34, 0.02);
        }

        .comparison-table tr.highlight td:first-child {
            border-left: 4px solid var(--primary);
        }

        .badge-star {
            color: #ffb300;
            font-weight: bold;
        }

        /* 智能需求匹配与表单 */
        .matcher-container {
            max-width: 650px;
            margin: 0 auto;
            background: #ffffff;
            padding: 40px;
            border-radius: 16px;
            box-shadow: 0 15px 40px rgba(0,0,0,0.05);
            border: 1px solid var(--border-color);
        }

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

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

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-size: 14px;
            transition: all 0.3s ease;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 87, 34, 0.1);
        }

        /* 培训版块 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
        }

        .training-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 24px 15px;
            border-radius: 8px;
            text-align: center;
            transition: all 0.3s ease;
        }

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

        .training-card h4 {
            font-size: 15px;
            color: var(--dark);
            margin-bottom: 10px;
        }

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

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

        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: 8px;
            margin-bottom: 12px;
            background: #ffffff;
            overflow: hidden;
        }

        .faq-header {
            padding: 18px 24px;
            background: #ffffff;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            user-select: none;
            transition: background-color 0.3s;
        }

        .faq-header:hover {
            background-color: var(--light-gray);
        }

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

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

        .faq-item.active .faq-body {
            padding: 18px 24px;
            max-height: 200px;
            border-top-width: 1px;
        }

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

        /* 用户评论 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .review-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 25px;
            border-radius: 12px;
            position: relative;
        }

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

        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .user-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--primary);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
        }

        .user-info h4 {
            font-size: 14px;
            color: var(--dark);
        }

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

        /* 资讯 / 知识库 */
        .blog-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .blog-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 24px;
            transition: all 0.3s;
        }

        .blog-card:hover {
            border-color: var(--primary);
        }

        .blog-title {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .blog-title a {
            color: var(--dark);
        }

        .blog-title a:hover {
            color: var(--primary);
        }

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

        /* 页脚 */
        footer {
            background-color: #1a1a1a;
            color: #aeaeae;
            padding: 60px 0 20px 0;
            font-size: 14px;
            border-top: 3px solid var(--primary);
        }

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

        .footer-logo-desc img {
            margin-bottom: 15px;
        }

        .footer-logo-desc p {
            margin-bottom: 15px;
            font-size: 13px;
        }

        .footer-links h4 {
            color: #ffffff;
            font-size: 15px;
            margin-bottom: 20px;
        }

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

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

        .footer-links ul li a {
            color: #aeaeae;
        }

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

        .footer-qr {
            text-align: center;
        }

        .footer-qr img {
            width: 100px;
            height: 100px;
            border-radius: 8px;
            margin-bottom: 8px;
        }

        .footer-bottom {
            border-top: 1px solid #2d2d2d;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
        }

        .friend-links {
            margin-top: 20px;
            padding-top: 15px;
            border-top: 1px solid #2d2d2d;
            font-size: 12px;
        }

        .friend-links a {
            color: #888888;
            margin-right: 15px;
            display: inline-block;
        }

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

        /* 悬浮侧栏 */
        .floating-contact {
            position: fixed;
            right: 20px;
            bottom: 30px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            z-index: 999;
        }

        .float-item {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: #ffffff;
            box-shadow: 0 4px 15px rgba(0,0,0,0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            border: 1px solid var(--border-color);
            position: relative;
        }

        .float-item:hover {
            background-color: var(--primary);
            color: #ffffff;
        }

        .float-item .popover {
            position: absolute;
            right: 60px;
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            display: none;
            text-align: center;
            color: var(--dark);
            font-size: 12px;
            width: 140px;
        }

        .float-item .popover img {
            width: 110px;
            height: 110px;
            margin-bottom: 5px;
        }

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

        /* 响应式调整 */
        @media (max-width: 992px) {
            .stats-grid, .service-grid, .process-steps, .reviews-grid, .blog-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .about-wrap, .grid-2col {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: #ffffff;
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                gap: 15px;
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .hero h1 {
                font-size: 30px;
            }
            .stats-grid, .service-grid, .process-steps, .reviews-grid, .blog-grid, .training-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 10px;
                text-align: center;
            }
        }