:root {
            --primary: #8b5cf6;
            --primary-light: #a78bfa;
            --secondary: #ec4899;
            --accent: #06b6d4;
            --dark: #0f172a;
            --light: #f8fafc;
            --muted: #475569;
            --border: #e2e8f0;
            --card-bg: rgba(255, 255, 255, 0.85);
            --hologram-grad: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(236, 72, 153, 0.1) 50%, rgba(6, 182, 212, 0.1) 100%);
            --hologram-border: linear-gradient(135deg, #8b5cf6, #ec4899, #06b6d4);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--light);
            color: var(--dark);
            line-height: 1.6;
            overflow-x: hidden;
            position: relative;
        }

        /* 镭射幻彩背景装饰 */
        body::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1000px;
            background: radial-gradient(circle at 10% 20%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
                        radial-gradient(circle at 90% 80%, rgba(6, 182, 212, 0.15) 0%, transparent 50%),
                        radial-gradient(circle at 50% 50%, rgba(236, 72, 153, 0.1) 0%, transparent 70%);
            z-index: -1;
            pointer-events: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }

        /* 顶部导航 */
        header {
            position: sticky;
            top: 0;
            background: rgba(248, 250, 252, 0.8);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
            z-index: 100;
            transition: all 0.3s ease;
        }

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

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: var(--dark);
            font-weight: 700;
            font-size: 1.2rem;
        }

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

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

        .nav-link {
            text-decoration: none;
            color: var(--muted);
            font-size: 0.95rem;
            font-weight: 500;
            transition: color 0.3s;
            white-space: nowrap;
        }

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

        .nav-btn {
            background: linear-gradient(135deg, #8b5cf6, #ec4899);
            color: white;
            padding: 8px 16px;
            border-radius: 30px;
            text-decoration: none;
            font-size: 0.9rem;
            font-weight: 600;
            transition: opacity 0.3s, transform 0.2s;
            box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
        }

        .nav-btn:hover {
            opacity: 0.9;
            transform: translateY(-1px);
        }

        .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;
        }

        /* 移动端菜单激活样式 */
        .menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 6px);
        }
        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -6px);
        }

        /* 英雄首屏 (无图片) */
        .hero-section {
            padding: 100px 0 80px 0;
            text-align: center;
            position: relative;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            background: linear-gradient(90deg, rgba(139, 92, 246, 0.1), rgba(6, 182, 212, 0.1));
            border: 1px solid rgba(139, 92, 246, 0.3);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 24px;
            backdrop-filter: blur(5px);
        }

        .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

        .gradient-text {
            background: linear-gradient(135deg, #8b5cf6, #ec4899, #06b6d4);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 1.15rem;
            color: var(--muted);
            max-width: 750px;
            margin: 0 auto 35px auto;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 15px;
            flex-wrap: wrap;
            margin-bottom: 50px;
        }

        .btn-primary {
            background: linear-gradient(135deg, #8b5cf6, #ec4899, #06b6d4);
            background-size: 200% auto;
            color: white;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            text-decoration: none;
            box-shadow: 0 10px 25px rgba(139, 92, 246, 0.3);
            transition: all 0.3s ease;
        }

        .btn-primary:hover {
            background-position: right center;
            transform: translateY(-2px);
            box-shadow: 0 15px 30px rgba(139, 92, 246, 0.4);
        }

        .btn-secondary {
            background: white;
            color: var(--dark);
            border: 1px solid var(--border);
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s;
        }

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

        /* 基础样式架构 */
        section {
            padding: 80px 0;
            border-bottom: 1px solid rgba(226, 232, 240, 0.5);
        }

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

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 50%;
            transform: translateX(-50%);
            width: 50px;
            height: 4px;
            background: linear-gradient(90deg, #8b5cf6, #06b6d4);
            border-radius: 2px;
        }

        .section-subtitle {
            color: var(--muted);
            font-size: 1rem;
            max-width: 600px;
            margin: 0 auto;
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
            margin-top: 20px;
        }

        .stat-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            padding: 25px;
            border-radius: 16px;
            text-align: center;
            box-shadow: 0 4px 20px rgba(0,0,0,0.02);
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(139, 92, 246, 0.1);
            border-color: var(--primary-light);
        }

        .stat-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 5px;
            background: linear-gradient(135deg, #8b5cf6, #06b6d4);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--muted);
            font-weight: 600;
        }

        /* 服务能力卡片 (AIGC服务) */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }

        .service-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            padding: 30px;
            border-radius: 20px;
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, #8b5cf6, #ec4899, #06b6d4);
            opacity: 0;
            transition: opacity 0.3s;
        }

        .service-card:hover::before {
            opacity: 1;
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.05);
            border-color: rgba(139, 92, 246, 0.2);
        }

        .service-icon {
            font-size: 2.5rem;
            margin-bottom: 20px;
            display: inline-block;
        }

        .service-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .service-desc {
            color: var(--muted);
            font-size: 0.9rem;
            margin-bottom: 15px;
        }

        /* 标签云与支持平台 */
        .tags-container {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            max-width: 900px;
            margin: 30px auto 0 auto;
        }

        .tag-pill {
            background: white;
            border: 1px solid var(--border);
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 0.85rem;
            color: var(--muted);
            transition: all 0.2s;
        }

        .tag-pill:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(139, 92, 246, 0.05);
            transform: scale(1.05);
        }

        /* 标准化流程 & 时间线 */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 30px;
            position: relative;
        }

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

        .step-num {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: linear-gradient(135deg, #8b5cf6, #ec4899);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            margin: 0 auto 20px auto;
            box-shadow: 0 5px 15px rgba(139, 92, 246, 0.3);
        }

        .step-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .step-desc {
            font-size: 0.85rem;
            color: var(--muted);
        }

        /* 对比评测表格 */
        .table-responsive {
            overflow-x: auto;
            margin-top: 20px;
            border-radius: 12px;
            border: 1px solid var(--border);
            background: white;
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }

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

        .comparison-table th {
            background-color: #f1f5f9;
            font-weight: 700;
            color: var(--dark);
        }

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

        .comparison-table tr:hover td {
            background-color: rgba(139, 92, 246, 0.02);
        }

        .highlight-col {
            background-color: rgba(139, 92, 246, 0.04);
            font-weight: 600;
        }

        .badge-score {
            display: inline-block;
            background: linear-gradient(135deg, #10b981, #059669);
            color: white;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.8rem;
        }

        /* 案例展示区 */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 25px;
        }

        .case-card {
            background: white;
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all 0.3s;
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 30px rgba(0,0,0,0.08);
        }

        .case-img-container {
            width: 100%;
            height: 200px;
            overflow: hidden;
            background: #e2e8f0;
        }

        .case-img-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }

        .case-card:hover .case-img-container img {
            transform: scale(1.05);
        }

        .case-info {
            padding: 20px;
        }

        .case-tag {
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 8px;
            display: inline-block;
        }

        .case-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .case-desc {
            font-size: 0.85rem;
            color: var(--muted);
        }

        /* 评论区 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
        }

        .review-card {
            background: white;
            border: 1px solid var(--border);
            padding: 25px;
            border-radius: 16px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.01);
            position: relative;
        }

        .review-text {
            font-size: 0.9rem;
            color: var(--muted);
            font-style: italic;
            margin-bottom: 20px;
            position: relative;
        }

        .review-text::before {
            content: '“';
            font-size: 3rem;
            color: rgba(139, 92, 246, 0.1);
            position: absolute;
            top: -20px;
            left: -10px;
        }

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

        .user-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, #a78bfa, #f472b6);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 700;
            font-size: 0.9rem;
        }

        .user-info h4 {
            font-size: 0.9rem;
            font-weight: 700;
        }

        .user-info p {
            font-size: 0.75rem;
            color: var(--muted);
        }

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

        .faq-item {
            background: white;
            border: 1px solid var(--border);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: all 0.3s;
        }

        .faq-question {
            width: 100%;
            padding: 18px 24px;
            text-align: left;
            background: none;
            border: none;
            font-size: 1rem;
            font-weight: 700;
            color: var(--dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-question::after {
            content: '+';
            font-size: 1.5rem;
            color: var(--primary);
            transition: transform 0.3s;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out, padding 0.3s ease-out;
            color: var(--muted);
            font-size: 0.9rem;
            background: #fafaf9;
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
            padding: 18px 24px;
            border-top: 1px solid var(--border);
        }

        /* AI术语百科 & 文章 */
        .glossary-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 15px;
        }

        .glossary-card {
            background: white;
            border: 1px solid var(--border);
            padding: 20px;
            border-radius: 12px;
        }

        .glossary-term {
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 5px;
            font-size: 0.95rem;
        }

        .glossary-def {
            font-size: 0.85rem;
            color: var(--muted);
        }

        .articles-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        .article-card {
            background: white;
            border: 1px solid var(--border);
            padding: 20px;
            border-radius: 12px;
            transition: border-color 0.3s;
        }

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

        .article-card a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 700;
            display: block;
            margin-bottom: 10px;
            font-size: 0.95rem;
        }

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

        /* 联系与表单区 */
        .contact-layout {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
            align-items: start;
        }

        .contact-info-panel {
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.03), rgba(236, 72, 153, 0.03));
            border: 1px solid var(--border);
            padding: 35px;
            border-radius: 20px;
        }

        .info-item {
            margin-bottom: 25px;
        }

        .info-label {
            font-size: 0.8rem;
            color: var(--muted);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 5px;
        }

        .info-value {
            font-weight: 600;
            color: var(--dark);
        }

        .qr-code-box {
            margin-top: 30px;
            padding-top: 25px;
            border-top: 1px dashed var(--border);
            text-align: center;
        }

        .qr-code-box img {
            width: 150px;
            height: 150px;
            border: 1px solid var(--border);
            border-radius: 10px;
            margin-bottom: 10px;
        }

        .form-panel {
            background: white;
            border: 1px solid var(--border);
            padding: 35px;
            border-radius: 20px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.02);
        }

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

        .form-label {
            display: block;
            font-size: 0.85rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: 8px;
            background-color: var(--light);
            font-family: inherit;
            font-size: 0.9rem;
            transition: border-color 0.3s, box-shadow 0.3s;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
            background-color: white;
        }

        .btn-submit {
            width: 100%;
            background: linear-gradient(135deg, #8b5cf6, #ec4899);
            color: white;
            border: none;
            padding: 14px;
            border-radius: 8px;
            font-weight: 700;
            cursor: pointer;
            transition: opacity 0.3s;
        }

        .btn-submit:hover {
            opacity: 0.95;
        }

        /* 侧边悬浮 */
        .floating-service {
            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: white;
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            cursor: pointer;
            transition: all 0.3s;
            text-decoration: none;
            color: var(--primary);
            font-size: 1.2rem;
            position: relative;
        }

        .float-btn:hover {
            transform: scale(1.1);
            background: var(--primary);
            color: white;
        }

        .float-qr-tips {
            position: absolute;
            right: 60px;
            background: white;
            border: 1px solid var(--border);
            padding: 10px;
            border-radius: 8px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            display: none;
            flex-direction: column;
            align-items: center;
            width: 120px;
        }

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

        .float-btn:hover .float-qr-tips {
            display: flex;
        }

        /* 页脚 */
        footer {
            background-color: var(--dark);
            color: #94a3b8;
            padding: 60px 0 30px 0;
            font-size: 0.85rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h3 {
            color: white;
            margin-bottom: 15px;
            font-size: 1.2rem;
        }

        .footer-brand p {
            margin-bottom: 15px;
            line-height: 1.6;
        }

        .footer-links h4 {
            color: white;
            margin-bottom: 15px;
            font-size: 0.95rem;
        }

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

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

        .footer-links ul li a {
            color: #94a3b8;
            text-decoration: none;
            transition: color 0.2s;
        }

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

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .friend-links a {
            color: #64748b;
            text-decoration: none;
            font-size: 0.8rem;
            transition: color 0.2s;
        }

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

        .footer-bottom {
            padding-top: 30px;
            border-top: 1px solid #1e293b;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

        .ai-page-home-link {
            color: var(--primary-light);
            text-decoration: none;
            font-weight: bold;
        }

        /* 响应式调整 */
        @media (max-width: 991px) {
            .contact-layout {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 70px);
                background: white;
                flex-direction: column;
                padding: 40px 20px;
                transition: 0.3s;
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
                overflow-y: auto;
                align-items: flex-start;
            }
            .nav-menu.active {
                left: 0;
            }
            .menu-toggle {
                display: flex;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }