/* 基础样式复位 */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: #f7f9fc;
            color: #1e293b;
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* 镭射幻彩风格 CSS 变量 */
        :root {
            --primary: #6366f1;
            --primary-light: #818cf8;
            --secondary: #ec4899;
            --accent: #06b6d4;
            --laser-gradient: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, rgba(236, 72, 153, 0.08) 50%, rgba(6, 182, 212, 0.08) 100%);
            --laser-border: linear-gradient(135deg, #6366f1, #ec4899, #06b6d4);
            --card-shadow: 0 10px 30px rgba(99, 102, 241, 0.05);
            --card-hover-shadow: 0 15px 35px rgba(99, 102, 241, 0.12);
        }

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

        /* 导航栏 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(20px);
            z-index: 1000;
            border-bottom: 1px solid rgba(99, 102, 241, 0.1);
            transition: all 0.3s ease;
        }
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: #0f172a;
            font-weight: 800;
            font-size: 1.25rem;
        }
        .ai-page-logo {
            height: 40px;
            width: auto;
        }
        .nav-links {
            display: flex;
            gap: 20px;
            align-items: center;
        }
        .nav-links a {
            text-decoration: none;
            color: #475569;
            font-size: 0.95rem;
            font-weight: 500;
            transition: color 0.3s;
        }
        .nav-links a:hover {
            color: var(--primary);
        }
        .nav-btn {
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            color: white !important;
            padding: 8px 20px;
            border-radius: 99px;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: #1e293b;
        }

        /* 移动端侧边栏 */
        .mobile-drawer {
            position: fixed;
            top: 70px;
            left: -100%;
            width: 100%;
            height: calc(100vh - 70px);
            background: white;
            z-index: 999;
            display: flex;
            flex-direction: column;
            padding: 40px 20px;
            gap: 20px;
            transition: left 0.3s ease;
            box-shadow: 0 10px 20px rgba(0,0,0,0.05);
        }
        .mobile-drawer.active {
            left: 0;
        }
        .mobile-drawer a {
            font-size: 1.2rem;
            color: #1e293b;
            text-decoration: none;
            padding: 10px 0;
            border-bottom: 1px solid #f1f5f9;
        }

        /* 统一 Section */
        section {
            padding: 90px 0;
            position: relative;
        }
        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-title h2 {
            font-size: 2.2rem;
            font-weight: 850;
            background: linear-gradient(135deg, #1e293b, #4f46e5);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 15px;
        }
        .section-title p {
            color: #64748b;
            max-width: 600px;
            margin: 0 auto;
            font-size: 1.05rem;
        }

        /* 首屏 Hero 区 - 绝无图片，全靠渐变/排版/科技感交互 */
        .hero-section {
            padding: 160px 0 110px 0;
            background: var(--laser-gradient);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .hero-glow {
            position: absolute;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(236,72,153,0.15) 0%, rgba(99,102,241,0.05) 70%, transparent 100%);
            top: -200px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1;
            pointer-events: none;
        }
        .hero-container {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 18px;
            background: rgba(99, 102, 241, 0.1);
            color: var(--primary);
            border-radius: 99px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 25px;
            border: 1px solid rgba(99,102,241,0.2);
            animation: pulse 2s infinite;
        }
        .hero-h1 {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.25;
            color: #0f172a;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }
        .hero-h1 span {
            background: linear-gradient(90deg, #6366f1, #ec4899, #06b6d4);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-desc {
            font-size: 1.2rem;
            color: #475569;
            max-width: 700px;
            margin: 0 auto 40px auto;
        }
        .hero-btn-group {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, #6366f1, #818cf8);
            color: white;
            padding: 14px 35px;
            font-size: 1.1rem;
            font-weight: 600;
            border-radius: 12px;
            text-decoration: none;
            box-shadow: 0 4px 15px rgba(99, 102, 241, 0.35);
            transition: all 0.3s;
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
        }
        .btn-outline {
            border: 2px solid #cbd5e1;
            color: #334155;
            padding: 12px 33px;
            font-size: 1.1rem;
            font-weight: 600;
            border-radius: 12px;
            text-decoration: none;
            background: white;
            transition: all 0.3s;
        }
        .btn-outline:hover {
            border-color: #6366f1;
            color: #6366f1;
            transform: translateY(-3px);
        }

        /* 数据指标卡片 */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
            margin-top: 50px;
        }
        .metric-card {
            background: white;
            padding: 30px 20px;
            border-radius: 16px;
            box-shadow: var(--card-shadow);
            border: 1px solid rgba(241, 245, 249, 0.8);
            transition: transform 0.3s;
        }
        .metric-card:hover {
            transform: translateY(-5px);
        }
        .metric-val {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 5px;
        }
        .metric-label {
            color: #64748b;
            font-size: 0.95rem;
        }

        /* 关于我们与平台介绍 */
        .about-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 50px;
            align-items: center;
        }
        .about-text {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .about-text h3 {
            font-size: 1.8rem;
            font-weight: 750;
            color: #0f172a;
        }
        .about-text p {
            color: #475569;
            font-size: 1.05rem;
            line-height: 1.8;
        }
        .platform-features {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-top: 20px;
        }
        .feat-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #334155;
            font-weight: 500;
        }
        .feat-icon {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
        }
        .about-img-box {
            position: relative;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--card-shadow);
        }
        .about-img-box img {
            width: 100%;
            display: block;
        }

        /* 服务能力卡片 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .service-card {
            background: white;
            padding: 40px 30px;
            border-radius: 20px;
            box-shadow: var(--card-shadow);
            border: 1px solid rgba(241, 245, 249, 0.8);
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
        }
        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--laser-border);
            opacity: 0;
            transition: opacity 0.3s;
        }
        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--card-hover-shadow);
        }
        .service-card:hover::before {
            opacity: 1;
        }
        .service-icon-box {
            width: 60px;
            height: 60px;
            border-radius: 14px;
            background: rgba(99, 102, 241, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.5rem;
            margin-bottom: 25px;
        }
        .service-card h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: #0f172a;
            margin-bottom: 15px;
        }
        .service-card p {
            color: #64748b;
            font-size: 0.95rem;
        }

        /* 制作场景 - 双列交错 */
        .scene-container {
            display: flex;
            flex-direction: column;
            gap: 60px;
        }
        .scene-row {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
            align-items: center;
        }
        .scene-row:nth-child(even) {
            grid-template-columns: 1.2fr 1fr;
        }
        .scene-row:nth-child(even) .scene-img-col {
            order: 1;
        }
        .scene-row:nth-child(even) .scene-text-col {
            order: 2;
        }
        .scene-img-col img {
            width: 100%;
            border-radius: 18px;
            box-shadow: var(--card-shadow);
        }
        .scene-text-col h3 {
            font-size: 1.8rem;
            font-weight: 750;
            color: #0f172a;
            margin-bottom: 20px;
        }
        .scene-text-col p {
            color: #475569;
            margin-bottom: 25px;
            font-size: 1.05rem;
        }
        .scene-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .scene-tag {
            background: #f1f5f9;
            color: #475569;
            padding: 5px 15px;
            border-radius: 99px;
            font-size: 0.9rem;
        }

        /* 对比评测表格 */
        .table-wrapper {
            background: white;
            border-radius: 20px;
            box-shadow: var(--card-shadow);
            padding: 30px;
            overflow-x: auto;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 700px;
        }
        th, td {
            padding: 16px 20px;
            border-bottom: 1px solid #f1f5f9;
        }
        th {
            font-weight: 700;
            color: #0f172a;
            background: #f8fafc;
        }
        tr:hover td {
            background: rgba(99, 102, 241, 0.02);
        }
        .score-highlight {
            color: var(--secondary);
            font-weight: 800;
            font-size: 1.1rem;
        }

        /* 需求表单 */
        .form-section {
            background: var(--laser-gradient);
        }
        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .form-info h3 {
            font-size: 2rem;
            font-weight: 800;
            color: #0f172a;
            margin-bottom: 20px;
        }
        .form-info p {
            color: #475569;
            margin-bottom: 30px;
        }
        .form-box {
            background: white;
            border-radius: 24px;
            padding: 40px;
            box-shadow: var(--card-hover-shadow);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #334155;
            font-size: 0.95rem;
        }
        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #cbd5e1;
            border-radius: 8px;
            outline: none;
            transition: border 0.3s;
            font-size: 1rem;
        }
        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
        }
        .btn-submit {
            width: 100%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
            border: none;
            padding: 14px;
            font-size: 1.1rem;
            font-weight: 600;
            border-radius: 8px;
            cursor: pointer;
            transition: opacity 0.3s;
        }
        .btn-submit:hover {
            opacity: 0.9;
        }

        /* 常见问题 FAQ 折叠面板 */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: white;
            border-radius: 12px;
            box-shadow: var(--card-shadow);
            border: 1px solid #f1f5f9;
            overflow: hidden;
            transition: all 0.3s;
        }
        .faq-header {
            padding: 20px 25px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            user-select: none;
        }
        .faq-header h3 {
            font-size: 1.1rem;
            color: #0f172a;
            font-weight: 650;
        }
        .faq-icon {
            font-size: 1.2rem;
            transition: transform 0.3s;
            color: var(--primary);
        }
        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out, padding 0.3s ease-out;
            padding: 0 25px;
            background: #f8fafc;
            color: #475569;
            font-size: 0.95rem;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-item.active .faq-body {
            padding: 20px 25px;
        }

        /* 用户评论 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }
        .review-card {
            background: white;
            padding: 30px;
            border-radius: 18px;
            box-shadow: var(--card-shadow);
            border: 1px solid #f1f5f9;
        }
        .reviewer-info {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 20px;
        }
        .reviewer-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: #e2e8f0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary);
        }
        .reviewer-meta h4 {
            font-size: 1rem;
            color: #0f172a;
        }
        .reviewer-meta span {
            font-size: 0.85rem;
            color: #64748b;
        }
        .review-text {
            color: #475569;
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* 标签云与术语百科 */
        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            max-width: 900px;
            margin: 0 auto;
        }
        .term-tag {
            background: white;
            border: 1px solid #e2e8f0;
            padding: 8px 18px;
            border-radius: 99px;
            font-size: 0.9rem;
            color: #475569;
            transition: all 0.3s;
            cursor: pointer;
        }
        .term-tag:hover {
            background: var(--primary);
            color: white;
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        /* 页脚 */
        footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 70px 0 30px 0;
            font-size: 0.95rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 1.8fr 1fr;
            gap: 50px;
            margin-bottom: 50px;
        }
        .footer-logo-area {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .footer-links-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .footer-col h4 {
            color: white;
            font-size: 1.05rem;
            margin-bottom: 20px;
            font-weight: 600;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 12px;
        }
        .footer-col ul li a {
            color: #94a3b8;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-col ul li a:hover {
            color: white;
        }
        .footer-qr {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 10px;
        }
        .footer-qr img {
            width: 110px;
            height: 110px;
            border-radius: 8px;
            background: white;
            padding: 5px;
        }
        .friend-links {
            border-top: 1px solid #1e293b;
            padding-top: 25px;
            margin-top: 25px;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }
        .friend-links a {
            color: #64748b;
            text-decoration: none;
            font-size: 0.85rem;
            transition: color 0.3s;
        }
        .friend-links a:hover {
            color: #94a3b8;
        }
        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        /* 侧边浮动客服 */
        .float-widget {
            position: fixed;
            right: 25px;
            bottom: 25px;
            z-index: 99;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .float-item {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: white;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s;
            position: relative;
        }
        .float-item:hover {
            background: var(--primary);
            color: white;
        }
        .float-item.qr-hover:hover .qr-box {
            display: block;
        }
        .qr-box {
            display: none;
            position: absolute;
            right: 60px;
            bottom: 0;
            background: white;
            padding: 10px;
            border-radius: 8px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
        }
        .qr-box img {
            width: 120px;
            height: 120px;
            display: block;
        }

        /* 流程步骤 */
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
        }
        .flow-card {
            background: white;
            padding: 30px;
            border-radius: 16px;
            position: relative;
            box-shadow: var(--card-shadow);
        }
        .flow-num {
            position: absolute;
            top: 20px;
            right: 20px;
            font-size: 2.5rem;
            font-weight: 800;
            color: rgba(99, 102, 241, 0.1);
        }
        .flow-card h3 {
            font-size: 1.2rem;
            color: #0f172a;
            margin-bottom: 12px;
        }
        .flow-card p {
            color: #64748b;
            font-size: 0.9rem;
        }

        /* 动画关键帧 */
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .metrics-grid, .services-grid, .flow-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-grid, .form-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            .hero-h1 {
                font-size: 2.2rem;
            }
            .metrics-grid, .services-grid, .flow-grid, .reviews-grid {
                grid-template-columns: 1fr;
            }
            .scene-row {
                grid-template-columns: 1fr !important;
            }
            .scene-row:nth-child(even) .scene-img-col {
                order: 2;
            }
            .scene-row:nth-child(even) .scene-text-col {
                order: 1;
            }
        }