:root {
            --bg-color: #07050e;
            --card-bg: #120e24;
            --card-border: #261c47;
            --primary: #ff007f;
            --secondary: #9d00ff;
            --cyan: #00f0ff;
            --text-main: #f1ecff;
            --text-muted: #a69ebd;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

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

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(7, 5, 14, 0.85);
            backdrop-filter: blur(12px);
            z-index: 1000;
            border-bottom: 1px solid var(--card-border);
        }

        .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;
        }

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

        .nav-link {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }

        .nav-link:hover {
            color: var(--primary);
            text-shadow: 0 0 8px rgba(255, 0, 127, 0.5);
        }

        .nav-btn {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            padding: 8px 18px;
            border-radius: 30px;
            text-decoration: none;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 0 15px rgba(157, 0, 255, 0.4);
            transition: var(--transition);
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 20px rgba(255, 0, 127, 0.6);
        }

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

        .menu-toggle span {
            display: block;
            width: 25px;
            height: 2px;
            background-color: var(--text-main);
            transition: var(--transition);
        }

        /* 英雄首屏 - 无图片 */
        .hero-section {
            padding: 160px 0 100px 0;
            text-align: center;
            background: radial-gradient(circle at 50% 30%, rgba(157, 0, 255, 0.15) 0%, transparent 60%);
            position: relative;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 20%;
            left: 10%;
            width: 150px;
            height: 150px;
            background: var(--primary);
            filter: blur(120px);
            opacity: 0.3;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 10%;
            right: 10%;
            width: 200px;
            height: 200px;
            background: var(--cyan);
            filter: blur(150px);
            opacity: 0.2;
            pointer-events: none;
        }

        h1.hero-title {
            font-size: clamp(2rem, 5vw, 3.5rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #fff 30%, var(--primary) 70%, var(--cyan) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 0 30px rgba(157, 0, 255, 0.2);
        }

        .hero-subtitle {
            font-size: clamp(1rem, 2vw, 1.25rem);
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 40px auto;
        }

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

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            padding: 15px 40px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: bold;
            font-size: 16px;
            box-shadow: 0 0 25px rgba(255, 0, 127, 0.5);
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .btn-primary:hover {
            transform: scale(1.05);
            box-shadow: 0 0 35px rgba(255, 0, 127, 0.8);
        }

        .btn-secondary {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-main);
            padding: 15px 40px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: bold;
            font-size: 16px;
            border: 1px solid var(--card-border);
            transition: var(--transition);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--cyan);
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
        }

        /* 数据指标 */
        .stats-section {
            padding: 40px 0;
            border-top: 1px solid var(--card-border);
            border-bottom: 1px solid var(--card-border);
            background: rgba(18, 14, 36, 0.5);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            text-align: center;
        }

        .stat-card h3 {
            font-size: 36px;
            color: var(--cyan);
            margin-bottom: 5px;
            font-weight: 700;
        }

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

        /* 板块公用样式 */
        section {
            padding: 80px 0;
        }

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

        .section-title h2 {
            font-size: 32px;
            font-weight: 750;
            background: linear-gradient(90deg, #fff, var(--primary), var(--cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            display: inline-block;
            margin-bottom: 15px;
        }

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

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

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

        .about-text p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 16px;
            line-height: 1.8;
        }

        .feature-bullets {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }

        .feature-bullets li {
            position: relative;
            padding-left: 25px;
            color: var(--text-main);
            font-weight: 500;
        }

        .feature-bullets li::before {
            content: "✦";
            position: absolute;
            left: 0;
            color: var(--cyan);
        }

        .about-visual {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: 20px;
            padding: 40px;
            position: relative;
            overflow: hidden;
            box-shadow: inset 0 0 20px rgba(157, 0, 255, 0.1);
        }

        .model-tags-container {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }

        .model-tag {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--card-border);
            padding: 6px 12px;
            border-radius: 8px;
            font-size: 12px;
            color: var(--text-main);
            transition: var(--transition);
        }

        .model-tag:hover {
            border-color: var(--primary);
            background: rgba(255, 0, 127, 0.1);
            color: var(--primary);
            transform: translateY(-2px);
        }

        /* 核心服务板块 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .service-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            padding: 35px 25px;
            border-radius: 16px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0;
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: 0 10px 30px rgba(255, 0, 127, 0.15);
        }

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

        .service-icon {
            font-size: 40px;
            margin-bottom: 20px;
            display: inline-block;
        }

        .service-card h3 {
            font-size: 20px;
            margin-bottom: 15px;
            color: #fff;
        }

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

        /* 一站式创作工作流 */
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 25px;
        }

        .flow-step {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid var(--card-border);
            border-radius: 12px;
            padding: 30px 20px;
            text-align: center;
            position: relative;
            transition: var(--transition);
        }

        .flow-step:hover {
            border-color: var(--cyan);
            background: rgba(0, 240, 255, 0.02);
        }

        .flow-num {
            font-size: 48px;
            font-weight: 800;
            line-height: 1;
            color: rgba(255, 0, 127, 0.1);
            position: absolute;
            top: 15px;
            right: 20px;
            transition: var(--transition);
        }

        .flow-step:hover .flow-num {
            color: rgba(0, 240, 255, 0.2);
        }

        .flow-step h3 {
            font-size: 18px;
            margin-bottom: 10px;
            position: relative;
            z-index: 2;
        }

        .flow-step p {
            color: var(--text-muted);
            font-size: 13px;
            position: relative;
            z-index: 2;
        }

        /* 解决方案及全国服务网络 */
        .grid-2col {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .image-wrapper {
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--card-border);
            box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
        }

        .image-wrapper img {
            width: 100%;
            display: block;
            object-fit: cover;
            transition: var(--transition);
        }

        .image-wrapper img:hover {
            transform: scale(1.03);
        }

        .network-list {
            list-style: none;
        }

        .network-item {
            padding: 15px;
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: 8px;
            margin-bottom: 12px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .network-city {
            font-weight: bold;
            color: var(--cyan);
        }

        /* 对比评测 */
        .comparison-table-wrapper {
            overflow-x: auto;
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: 16px;
            padding: 20px;
        }

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

        .comparison-table th, .comparison-table td {
            padding: 15px 20px;
            border-bottom: 1px solid var(--card-border);
        }

        .comparison-table th {
            color: #fff;
            font-weight: 600;
        }

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

        .highlight-col {
            color: var(--primary);
            font-weight: bold;
        }

        .rating-badge {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            padding: 20px;
            border-radius: 16px;
            text-align: center;
            margin-top: 30px;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .rating-score {
            font-size: 48px;
            font-weight: 800;
            color: var(--cyan);
        }

        /* Token 比价 */
        .price-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }

        .price-card {
            background: rgba(255, 255, 255, 0.01);
            border: 1px solid var(--card-border);
            border-radius: 16px;
            padding: 30px;
            text-align: center;
            position: relative;
            transition: var(--transition);
        }

        .price-card.featured {
            border-color: var(--primary);
            background: rgba(255, 0, 127, 0.02);
            box-shadow: 0 0 25px rgba(255, 0, 127, 0.1);
        }

        .price-card h3 {
            font-size: 22px;
            margin-bottom: 15px;
        }

        .price-value {
            font-size: 32px;
            font-weight: 800;
            color: var(--cyan);
            margin-bottom: 20px;
        }

        .price-features {
            list-style: none;
            margin-bottom: 25px;
            text-align: left;
        }

        .price-features li {
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 14px;
            color: var(--text-muted);
        }

        /* 用户评论 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 25px;
        }

        .review-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            padding: 30px;
            border-radius: 16px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

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

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

        .author-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: #fff;
        }

        .author-info h4 {
            font-size: 15px;
            color: #fff;
        }

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

        /* 需求表单与加盟代理 */
        .form-section {
            background: radial-gradient(circle at 10% 20%, rgba(0, 240, 255, 0.05) 0%, transparent 40%),
                        radial-gradient(circle at 90% 80%, rgba(255, 0, 127, 0.05) 0%, transparent 40%);
        }

        .form-wrapper {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            padding: 40px;
            border-radius: 24px;
            max-width: 800px;
            margin: 0 auto;
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
        }

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            color: var(--text-main);
            font-size: 14px;
        }

        .form-control {
            width: 100%;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--card-border);
            border-radius: 8px;
            padding: 12px 16px;
            color: #fff;
            font-size: 15px;
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--cyan);
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.2);
            background: rgba(255, 255, 255, 0.05);
        }

        select.form-control {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23a69ebd' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 15px center;
            background-size: 18px;
            padding-right: 40px;
        }

        .submit-btn {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            border: none;
            width: 100%;
            padding: 15px;
            border-radius: 8px;
            font-weight: bold;
            font-size: 16px;
            cursor: pointer;
            box-shadow: 0 0 15px rgba(255, 0, 127, 0.3);
            transition: var(--transition);
        }

        .submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 25px rgba(255, 0, 127, 0.5);
        }

        /* 帮助中心与 FAQ */
        .faq-wrapper {
            max-width: 850px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: 12px;
            margin-bottom: 15px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-question {
            padding: 20px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            user-select: none;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: rgba(255, 255, 255, 0.01);
        }

        .faq-answer-content {
            padding: 0 24px 20px 24px;
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.8;
            border-top: 1px solid rgba(255, 255, 255, 0.02);
        }

        .faq-icon {
            transition: transform 0.3s ease;
            color: var(--primary);
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
        }

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

        /* 资讯与知识库 */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
        }

        .article-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: 16px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }

        .article-card:hover {
            transform: translateY(-5px);
            border-color: var(--cyan);
        }

        .article-body {
            padding: 25px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            flex-grow: 1;
        }

        .article-tag {
            align-self: flex-start;
            background: rgba(0, 240, 255, 0.1);
            color: var(--cyan);
            font-size: 11px;
            padding: 3px 8px;
            border-radius: 4px;
            margin-bottom: 15px;
            text-transform: uppercase;
        }

        .article-body h3 {
            font-size: 18px;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .article-body p {
            color: var(--text-muted);
            font-size: 13px;
            margin-bottom: 20px;
        }

        .article-link {
            color: var(--primary);
            text-decoration: none;
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        /* 页脚 */
        footer {
            background: #040308;
            border-top: 1px solid var(--card-border);
            padding: 60px 0 30px 0;
            color: var(--text-muted);
            font-size: 14px;
        }

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

        .footer-brand p {
            margin-top: 15px;
            line-height: 1.8;
        }

        .footer-title {
            color: #fff;
            font-weight: 600;
            margin-bottom: 20px;
            font-size: 16px;
        }

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

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

        .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--cyan);
        }

        .footer-contact p {
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-bottom {
            border-top: 1px solid var(--card-border);
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }

        .friend-links a {
            color: var(--text-muted);
            text-decoration: none;
            transition: var(--transition);
        }

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

        /* 浮动客服 */
        .float-contact {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .float-item {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 15px rgba(255, 0, 127, 0.4);
            cursor: pointer;
            position: relative;
            transition: var(--transition);
        }

        .float-item:hover {
            transform: scale(1.1);
        }

        .float-item svg {
            width: 24px;
            height: 24px;
            fill: #fff;
        }

        .qr-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            padding: 15px;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            display: none;
            text-align: center;
            width: 150px;
        }

        .qr-popover img {
            width: 120px;
            height: 120px;
            margin-bottom: 5px;
            display: block;
        }

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

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

        /* 响应式调整 */
        @media (max-width: 992px) {
            .about-grid, .grid-2col {
                grid-template-columns: 1fr;
            }

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

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: var(--bg-color);
                border-bottom: 1px solid var(--card-border);
                flex-direction: column;
                padding: 20px;
                gap: 15px;
            }

            .nav-menu.active {
                display: flex;
            }

            .menu-toggle {
                display: flex;
            }

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }