/* 暗夜赛博高饱和粉紫风 样式重置与核心变量 */
        :root {
            --bg-dark: #0b0813;
            --bg-card: #150f24;
            --bg-card-hover: #1f1636;
            --primary-pink: #ff007f;
            --primary-purple: #9d4edd;
            --primary-cyan: #00f0ff;
            --text-main: #ffffff;
            --text-sub: #b8b3d3;
            --text-muted: #797399;
            --border-glow: rgba(255, 0, 127, 0.3);
            --border-cyan-glow: rgba(0, 240, 255, 0.3);
            --gradient-cyber: linear-gradient(135deg, #ff007f 0%, #9d4edd 50%, #00f0ff 100%);
            --gradient-button: linear-gradient(90deg, #ff007f, #8a2be2);
            --shadow-pink: 0 0 20px rgba(255, 0, 127, 0.35);
            --shadow-cyan: 0 0 20px rgba(0, 240, 255, 0.35);
            --container-max: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-dark);
            color: var(--text-main);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
            background-color: var(--bg-dark);
            background-image: 
                radial-gradient(circle at 15% 20%, rgba(255, 0, 127, 0.08) 0%, transparent 40%),
                radial-gradient(circle at 85% 75%, rgba(157, 78, 221, 0.08) 0%, transparent 40%);
            background-attachment: fixed;
        }

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

        a:hover {
            color: var(--primary-pink);
            text-shadow: 0 0 8px var(--primary-pink);
        }

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

        /* 顶部导航 */
        header.site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(11, 8, 19, 0.88);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-glow);
        }

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

        .brand-logo-wrap {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .brand-logo-wrap img.ai-page-logo {
            height: 40px;
            width: auto;
            object-fit: contain;
        }

        .brand-name-sub {
            font-size: 13px;
            color: var(--text-sub);
            border-left: 1px solid var(--border-glow);
            padding-left: 10px;
        }

        nav.main-nav {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        nav.main-nav a {
            color: var(--text-sub);
            font-size: 14px;
            font-weight: 500;
        }

        nav.main-nav a:hover {
            color: var(--primary-pink);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn-cyber-sm {
            padding: 8px 18px;
            border-radius: 4px;
            background: var(--gradient-button);
            color: #fff !important;
            font-size: 14px;
            font-weight: 600;
            box-shadow: var(--shadow-pink);
            border: none;
            cursor: pointer;
            display: inline-block;
        }

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

        .menu-toggle {
            display: none;
            background: none;
            border: 1px solid var(--primary-pink);
            color: var(--text-main);
            font-size: 20px;
            padding: 4px 8px;
            border-radius: 4px;
            cursor: pointer;
        }

        /* 纯CSS/文字赛博风格 HERO 首屏（严禁包含图片） */
        .hero-section {
            padding: 90px 0 60px;
            position: relative;
            text-align: center;
            overflow: hidden;
            border-bottom: 1px solid rgba(157, 78, 221, 0.2);
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: 20px;
            background: rgba(255, 0, 127, 0.12);
            border: 1px solid var(--primary-pink);
            color: var(--primary-pink);
            font-size: 13px;
            margin-bottom: 24px;
            box-shadow: var(--shadow-pink);
        }

        .hero-title-h1 {
            font-size: 2.5rem;
            font-weight: 800;
            margin-bottom: 20px;
            background: var(--gradient-cyber);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: 1px;
        }

        .hero-subtitle {
            font-size: 18px;
            color: var(--text-sub);
            max-width: 800px;
            margin: 0 auto 36px;
        }

        .hero-cta-group {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            margin-bottom: 50px;
            flex-wrap: wrap;
        }

        .btn-cyber-lg {
            padding: 14px 36px;
            border-radius: 6px;
            background: var(--gradient-cyber);
            color: #fff !important;
            font-size: 18px;
            font-weight: 700;
            box-shadow: var(--shadow-pink);
            display: inline-block;
            transition: all 0.3s ease;
        }

        .btn-cyber-lg:hover {
            transform: scale(1.04);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.6);
        }

        .btn-outline-lg {
            padding: 14px 32px;
            border-radius: 6px;
            background: transparent;
            color: var(--primary-cyan) !important;
            border: 1px solid var(--primary-cyan);
            font-size: 16px;
            font-weight: 600;
            box-shadow: var(--shadow-cyan);
        }

        .btn-outline-lg:hover {
            background: rgba(0, 240, 255, 0.1);
            transform: translateY(-2px);
        }

        /* 核心指标卡片 */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 20px;
        }

        .metric-card {
            background: var(--bg-card);
            border: 1px solid var(--border-glow);
            padding: 24px;
            border-radius: 8px;
            text-align: center;
            transition: all 0.3s;
        }

        .metric-card:hover {
            border-color: var(--primary-cyan);
            transform: translateY(-4px);
            box-shadow: var(--shadow-cyan);
        }

        .metric-num {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary-pink);
            margin-bottom: 6px;
        }

        .metric-label {
            font-size: 14px;
            color: var(--text-sub);
        }

        /* 通用 Section 规范 */
        section.page-section {
            padding: 70px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-tag {
            color: var(--primary-cyan);
            font-size: 13px;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 8px;
            display: block;
            font-weight: 600;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-main);
        }

        .section-desc {
            color: var(--text-sub);
            font-size: 15px;
            margin-top: 10px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        /* 关于我们与平台介绍 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .about-text p {
            color: var(--text-sub);
            margin-bottom: 16px;
            font-size: 15px;
        }

        .about-text strong {
            color: var(--primary-pink);
        }

        .img-container {
            border: 1px solid var(--border-glow);
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow-pink);
        }

        .img-container img {
            width: 100%;
            height: auto;
            display: block;
        }

        /* 服务与组件卡片网格 */
        .cards-grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

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

        .cyber-card {
            background: var(--bg-card);
            border: 1px solid var(--border-glow);
            border-radius: 8px;
            padding: 28px;
            transition: all 0.3s ease;
        }

        .cyber-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--primary-cyan);
            transform: translateY(-5px);
            box-shadow: var(--shadow-cyan);
        }

        .card-icon {
            font-size: 28px;
            color: var(--primary-pink);
            margin-bottom: 16px;
        }

        .card-title {
            font-size: 18px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
        }

        .card-desc {
            font-size: 14px;
            color: var(--text-sub);
        }

        /* 支持的模型标签云 */
        .model-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 30px;
            justify-content: center;
        }

        .model-tag {
            padding: 6px 14px;
            border-radius: 20px;
            background: rgba(157, 78, 221, 0.15);
            border: 1px solid rgba(157, 78, 221, 0.4);
            color: var(--primary-cyan);
            font-size: 13px;
        }

        /* 流程步骤 */
        .step-list {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .step-item {
            background: var(--bg-card);
            border: 1px solid var(--border-glow);
            padding: 20px;
            border-radius: 8px;
            position: relative;
            text-align: center;
        }

        .step-num {
            font-size: 24px;
            font-weight: 800;
            color: var(--primary-pink);
            margin-bottom: 8px;
        }

        .step-title {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .step-desc {
            font-size: 13px;
            color: var(--text-sub);
        }

        /* 对比评测表格 */
        .table-responsive {
            overflow-x: auto;
            border: 1px solid var(--border-glow);
            border-radius: 8px;
        }

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

        .cyber-table th, .cyber-table td {
            padding: 16px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 14px;
        }

        .cyber-table th {
            background: rgba(255, 0, 127, 0.15);
            color: var(--primary-pink);
            font-weight: 700;
        }

        .cyber-table tr:hover {
            background: rgba(0, 240, 255, 0.05);
        }

        .rating-box {
            background: linear-gradient(90deg, rgba(255,0,127,0.2), rgba(0,240,255,0.2));
            border: 1px solid var(--primary-pink);
            border-radius: 8px;
            padding: 20px;
            text-align: center;
            margin-bottom: 30px;
            display: flex;
            align-items: center;
            justify-content: space-around;
            flex-wrap: wrap;
        }

        .rating-score {
            font-size: 36px;
            font-weight: 900;
            color: var(--primary-pink);
        }

        /* FAQ 折叠面板 */
        .faq-accordion {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-glow);
            border-radius: 6px;
            margin-bottom: 12px;
            overflow: hidden;
        }

        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: #fff;
            user-select: none;
        }

        .faq-question:hover {
            color: var(--primary-cyan);
        }

        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-sub);
            font-size: 14px;
            display: none;
            border-top: 1px dashed rgba(255,255,255,0.1);
            padding-top: 14px;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        .faq-item.active .faq-toggle-icon {
            transform: rotate(180deg);
            color: var(--primary-pink);
        }

        /* 客户评论 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .review-card {
            background: var(--bg-card);
            border: 1px solid var(--border-glow);
            padding: 24px;
            border-radius: 8px;
            position: relative;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }

        .review-avatar-text {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--gradient-button);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: #fff;
        }

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

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

        .review-text {
            font-size: 14px;
            color: var(--text-sub);
            font-style: italic;
        }

        /* 表单区域 */
        .contact-wrap {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            background: var(--bg-card);
            border: 1px solid var(--border-glow);
            border-radius: 12px;
            padding: 36px;
        }

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

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

        .form-control {
            width: 100%;
            padding: 12px 16px;
            background: #0c0817;
            border: 1px solid var(--border-glow);
            border-radius: 6px;
            color: #fff;
            font-size: 14px;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary-cyan);
            box-shadow: var(--shadow-cyan);
        }

        textarea.form-control {
            resize: vertical;
            min-height: 100px;
        }

        .qr-card {
            text-align: center;
            padding: 20px;
            background: #0c0817;
            border: 1px solid var(--border-glow);
            border-radius: 8px;
        }

        .qr-card img {
            max-width: 160px;
            height: auto;
            border-radius: 6px;
            margin-bottom: 12px;
        }

        /* 案例图片展示组 */
        .cases-gallery {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .case-item-img {
            border-radius: 8px;
            overflow: hidden;
            border: 1px solid var(--border-glow);
        }

        .case-item-img img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            display: block;
            transition: transform 0.4s ease;
        }

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

        /* 文章列表 */
        .articles-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .article-link-item {
            padding: 14px 20px;
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 6px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .article-link-item:hover {
            border-color: var(--primary-pink);
            background: var(--bg-card-hover);
        }

        /* 友情链接与页脚 */
        footer.site-footer {
            background: #07050d;
            border-top: 1px solid var(--border-glow);
            padding: 50px 0 30px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

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

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
            margin-top: 12px;
        }

        .friend-links a {
            color: var(--text-muted);
            font-size: 13px;
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 13px;
        }

        /* 浮动客服入口 */
        .float-cs {
            position: fixed;
            right: 20px;
            bottom: 30px;
            z-index: 999;
        }

        .float-cs-btn {
            width: 54px;
            height: 54px;
            border-radius: 50%;
            background: var(--gradient-cyber);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 12px;
            box-shadow: var(--shadow-pink);
            cursor: pointer;
            border: none;
        }

        .float-cs-modal {
            display: none;
            position: absolute;
            bottom: 65px;
            right: 0;
            width: 220px;
            background: var(--bg-card);
            border: 1px solid var(--primary-pink);
            border-radius: 8px;
            padding: 16px;
            text-align: center;
            box-shadow: 0 0 20px rgba(0, 0, 0, 0.8);
        }

        .float-cs-modal img {
            width: 140px;
            height: auto;
            border-radius: 4px;
        }

        .float-cs:hover .float-cs-modal {
            display: block;
        }

        /* 响应式适配 */
        @media (max-width: 992px) {
            .metrics-grid, .cards-grid-4 { grid-template-columns: repeat(2, 1fr); }
            .cards-grid-3, .reviews-grid { grid-template-columns: 1fr; }
            .about-grid, .contact-wrap { grid-template-columns: 1fr; }
            .step-list { grid-template-columns: repeat(2, 1fr); }
            .cases-gallery { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
            
            nav.main-nav {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: #0f0b1a;
                flex-direction: column;
                padding: 20px;
                border-bottom: 1px solid var(--border-glow);
            }

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

            .menu-toggle {
                display: block;
            }
        }

        @media (max-width: 576px) {
            .hero-title-h1 { font-size: 1.8rem; }
            .metrics-grid { grid-template-columns: 1fr; }
            .step-list { grid-template-columns: 1fr; }
        }