:root {
            --bg-color: #07080c;
            --card-bg: rgba(15, 17, 26, 0.75);
            --border-color: rgba(255, 255, 255, 0.08);
            --text-primary: #f3f4f6;
            --text-secondary: #9ca3af;
            --neon-purple: #9d4edd;
            --neon-blue: #00f2fe;
            --neon-pink: #ff007f;
            --neon-green: #39ff14;
            --neon-gradient: linear-gradient(135deg, var(--neon-blue), var(--neon-purple), var(--neon-pink));
            --container-width: 1200px;
        }

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

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

        /* 隐藏滚动条 */
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-color);
        }
        ::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.1);
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--neon-blue);
        }

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

        /* 霓虹发光文字特效 */
        .neon-text-blue {
            color: #fff;
            text-shadow: 0 0 5px #fff, 0 0 10px var(--neon-blue), 0 0 20px var(--neon-blue);
        }
        .neon-text-pink {
            color: #fff;
            text-shadow: 0 0 5px #fff, 0 0 10px var(--neon-pink), 0 0 20px var(--neon-pink);
        }

        /* 导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(7, 8, 12, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
        }

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

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

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

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

        .nav-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s, text-shadow 0.3s;
        }

        .nav-links a:hover {
            color: var(--neon-blue);
            text-shadow: 0 0 8px var(--neon-blue);
        }

        .nav-btn {
            background: var(--neon-gradient);
            color: #fff;
            padding: 8px 18px;
            border-radius: 20px;
            font-weight: bold;
            border: none;
            cursor: pointer;
            box-shadow: 0 0 15px rgba(0, 242, 254, 0.4);
            transition: transform 0.2s, box-shadow 0.2s;
            text-decoration: none;
            font-size: 13px;
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 25px rgba(255, 0, 127, 0.6);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
        }

        .menu-toggle span {
            width: 25px;
            height: 2px;
            background: var(--text-primary);
            transition: 0.3s;
        }

        /* Hero 区域 - 首屏绝对无图片 */
        .hero {
            padding: 150px 0 100px 0;
            position: relative;
            background: radial-gradient(circle at 50% 30%, rgba(157, 78, 221, 0.15), transparent 60%);
            text-align: center;
            overflow: hidden;
        }

        /* CSS 动画背景点缀 */
        .hero::before {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            background: var(--neon-blue);
            filter: blur(150px);
            top: 10%;
            left: 10%;
            opacity: 0.2;
            pointer-events: none;
        }

        .hero::after {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            background: var(--neon-pink);
            filter: blur(150px);
            bottom: 10%;
            right: 10%;
            opacity: 0.2;
            pointer-events: none;
        }

        .hero h1 {
            font-size: 3rem;
            line-height: 1.2;
            margin-bottom: 20px;
            background: linear-gradient(to right, #fff, var(--neon-blue), var(--neon-pink), #fff);
            background-size: 200% auto;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            animation: shine 5s linear infinite;
        }

        @keyframes shine {
            to { background-position: 200% center; }
        }

        .hero p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 800px;
            margin: 0 auto 30px auto;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 50px;
        }

        .btn-main {
            background: var(--neon-gradient);
            color: #fff;
            padding: 15px 35px;
            border-radius: 30px;
            font-size: 16px;
            font-weight: bold;
            text-decoration: none;
            box-shadow: 0 0 20px rgba(0, 242, 254, 0.5);
            transition: all 0.3s;
            display: inline-block;
        }

        .btn-main:hover {
            transform: scale(1.05);
            box-shadow: 0 0 30px var(--neon-pink);
        }

        .btn-sub {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--neon-blue);
            color: var(--text-primary);
            padding: 15px 35px;
            border-radius: 30px;
            font-size: 16px;
            font-weight: bold;
            text-decoration: none;
            transition: all 0.3s;
            display: inline-block;
        }

        .btn-sub:hover {
            background: rgba(0, 242, 254, 0.1);
            box-shadow: 0 0 15px var(--neon-blue);
        }

        /* 统一标题 */
        section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-color);
        }

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

        .section-title h2 {
            font-size: 2.2rem;
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: var(--neon-gradient);
            box-shadow: 0 0 8px var(--neon-blue);
        }

        .section-title p {
            color: var(--text-secondary);
            font-size: 1rem;
        }

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

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
        }

        .card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
        }

        .card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.03), transparent);
            transform: translateX(-100%);
            transition: transform 0.6s;
        }

        .card:hover::before {
            transform: translateX(100%);
        }

        .card:hover {
            transform: translateY(-5px);
            border-color: var(--neon-blue);
            box-shadow: 0 10px 30px rgba(0, 242, 254, 0.15);
        }

        /* 数据指标 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-top: 20px;
        }

        .stat-card {
            text-align: center;
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid var(--border-color);
            padding: 20px;
            border-radius: 12px;
        }

        .stat-card .num {
            font-size: 2.5rem;
            font-weight: bold;
            background: var(--neon-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 5px;
        }

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

        .about-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: #fff;
        }

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

        .about-media img {
            border-radius: 16px;
            border: 1px solid var(--neon-purple);
            box-shadow: 0 0 30px rgba(157, 78, 221, 0.2);
        }

        /* 全平台AIGC服务 - 支持平台 */
        .platform-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            justify-content: center;
            margin-top: 30px;
        }

        .platform-tag {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-color);
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 14px;
            transition: all 0.3s;
        }

        .platform-tag:hover {
            border-color: var(--neon-pink);
            box-shadow: 0 0 10px rgba(255, 0, 127, 0.3);
            transform: scale(1.05);
            background: rgba(255, 0, 127, 0.05);
        }

        /* 场景制作展示 */
        .scene-showcase {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        .scene-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 8px;
            margin-bottom: 15px;
        }

        /* 对比评测表格 */
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            margin-top: 30px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

        table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            background: var(--card-bg);
        }

        th, td {
            padding: 15px 20px;
            border-bottom: 1px solid var(--border-color);
        }

        th {
            background: rgba(255, 255, 255, 0.05);
            font-weight: bold;
        }

        tr:hover {
            background: rgba(255, 255, 255, 0.02);
        }

        .highlight-td {
            color: var(--neon-blue);
            font-weight: bold;
        }

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

        .faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 15px 0;
        }

        .faq-question {
            font-size: 16px;
            font-weight: bold;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            padding: 10px 0;
        }

        .faq-question::after {
            content: '+';
            font-size: 20px;
            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;
            color: var(--text-secondary);
            font-size: 14px;
            padding-right: 20px;
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
            padding-top: 10px;
            padding-bottom: 10px;
        }

        /* 评论 */
        .comment-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
        }

        .comment-card {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 25px;
        }

        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 15px;
        }

        .user-info .name {
            font-weight: bold;
            display: block;
        }

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

        .stars {
            color: #ffb703;
        }

        /* 流程步骤 */
        .step-timeline {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            position: relative;
        }

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

        .step-num {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--neon-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 18px;
            margin: 0 auto 20px auto;
            box-shadow: 0 0 15px var(--neon-blue);
        }

        /* 表单 */
        .form-wrapper {
            max-width: 600px;
            margin: 0 auto;
            background: var(--card-bg);
            border: 1px solid var(--neon-purple);
            padding: 40px;
            border-radius: 16px;
            box-shadow: 0 0 30px rgba(157, 78, 221, 0.15);
        }

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

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

        .form-control {
            width: 100%;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 12px 15px;
            color: #fff;
            transition: all 0.3s;
        }

        .form-control:focus {
            border-color: var(--neon-blue);
            outline: none;
            box-shadow: 0 0 10px rgba(0, 242, 254, 0.3);
        }

        .btn-submit {
            width: 100%;
            background: var(--neon-gradient);
            color: #fff;
            border: none;
            padding: 14px;
            border-radius: 8px;
            font-weight: bold;
            cursor: pointer;
            font-size: 16px;
            transition: 0.3s;
            box-shadow: 0 0 15px rgba(0, 242, 254, 0.3);
        }

        .btn-submit:hover {
            box-shadow: 0 0 25px var(--neon-pink);
        }

        /* 资讯 / 知识库 */
        .article-card {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .article-card a {
            color: var(--neon-blue);
            text-decoration: none;
            font-weight: bold;
            margin-top: 15px;
            display: inline-block;
        }

        .article-card a:hover {
            text-shadow: 0 0 5px var(--neon-blue);
        }

        /* 侧边浮动与返回顶部 */
        .float-panel {
            position: fixed;
            bottom: 30px;
            right: 30px;
            display: flex;
            flex-direction: column;
            gap: 15px;
            z-index: 999;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: rgba(15, 17, 26, 0.9);
            border: 1px solid var(--neon-blue);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: 0 0 10px rgba(0, 242, 254, 0.3);
            position: relative;
        }

        .float-btn:hover {
            border-color: var(--neon-pink);
            box-shadow: 0 0 15px rgba(255, 0, 127, 0.5);
            transform: translateY(-3px);
        }

        .float-btn svg {
            width: 22px;
            height: 22px;
            fill: #fff;
        }

        /* 客服弹窗容器 */
        .qr-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: var(--bg-color);
            border: 1px solid var(--neon-purple);
            border-radius: 12px;
            padding: 20px;
            width: 220px;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            display: none;
        }

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

        .qr-popover img {
            width: 150px;
            height: 150px;
            margin-bottom: 10px;
            border-radius: 4px;
        }

        .qr-popover p {
            font-size: 12px;
            color: var(--text-secondary);
        }

        /* 页脚 */
        footer {
            background: #030406;
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px 0;
            font-size: 14px;
            color: var(--text-secondary);
        }

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

        .footer-logo img {
            height: 45px;
            margin-bottom: 15px;
        }

        .footer-col h4 {
            color: #fff;
            margin-bottom: 20px;
            font-size: 16px;
        }

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

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

        .footer-col ul li a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color 0.3s;
        }

        .footer-col ul li a:hover {
            color: var(--neon-blue);
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }

        .friend-links a {
            color: var(--text-secondary);
            text-decoration: none;
            background: rgba(255, 255, 255, 0.05);
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 12px;
        }

        .friend-links a:hover {
            color: var(--neon-blue);
            background: rgba(0, 242, 254, 0.1);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        /* 响应式调整 */
        @media (max-width: 992px) {
            .about-wrapper {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: var(--bg-color);
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                gap: 15px;
            }
            .nav-links.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 15px;
                text-align: center;
            }
        }