/* 变量定义：暗夜赛博高饱和粉紫风 */
        :root {
            --bg-color: #080612;
            --bg-card: rgba(22, 17, 41, 0.7);
            --bg-card-hover: rgba(33, 26, 61, 0.9);
            --primary: #ff007f; /* 赛博霓虹粉 */
            --secondary: #7f00ff; /* 赛博霓虹紫 */
            --accent: #00f3ff; /* 赛博霓虹青 */
            --text-main: #f3f1f9;
            --text-muted: #9f98b9;
            --border-color: rgba(255, 0, 127, 0.2);
            --border-hover: rgba(0, 243, 255, 0.4);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* 基础重置 */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            background-color: var(--bg-color);
            color: var(--text-main);
            font-family: var(--font-family);
            line-height: 1.6;
            overflow-x: hidden;
            background-image: 
                radial-gradient(circle at 10% 20%, rgba(127, 0, 255, 0.15) 0%, transparent 40%),
                radial-gradient(circle at 90% 80%, rgba(255, 0, 127, 0.12) 0%, transparent 45%);
            background-attachment: fixed;
        }

        /* 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(8, 6, 18, 0.85);
            backdrop-filter: blur(12px);
            z-index: 1000;
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }

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

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

        .ai-page-logo {
            height: 40px;
            width: auto;
            filter: drop-shadow(0 0 8px rgba(255, 0, 127, 0.5));
        }

        .brand-name {
            font-size: 1.3rem;
            font-weight: 800;
            background: linear-gradient(45deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: 1px;
        }

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

        .nav-link {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
            padding: 5px 0;
        }

        .nav-link:hover, .nav-link.active {
            color: var(--text-main);
            text-shadow: 0 0 10px rgba(0, 243, 255, 0.6);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            transition: var(--transition);
        }

        .nav-link:hover::after {
            width: 100%;
        }

        .nav-btn {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            padding: 8px 20px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            font-size: 0.9rem;
            box-shadow: 0 0 15px rgba(255, 0, 127, 0.4);
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 25px rgba(255, 0, 127, 0.7);
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
            border: none;
            background: transparent;
        }

        .menu-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: var(--text-main);
            border-radius: 3px;
            transition: var(--transition);
        }

        /* 统一段落块 */
        section {
            padding: 90px 0 50px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

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

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(90deg, #fff, var(--text-muted));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .section-title::after {
            content: '';
            display: block;
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            margin: 8px auto 0;
            border-radius: 2px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }

        /* 首屏 Hero 区 - 绝对禁止出现图片 */
        .hero-section {
            padding: 160px 0 100px 0;
            background: radial-gradient(circle at 50% 50%, rgba(22, 12, 43, 0.8) 0%, var(--bg-color) 100%);
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            min-height: calc(100vh - 70px);
        }

        .hero-section::before {
            content: '';
            position: absolute;
            width: 400px;
            height: 400px;
            background: var(--secondary);
            filter: blur(150px);
            opacity: 0.15;
            top: 20%;
            left: 10%;
            pointer-events: none;
        }

        .hero-content {
            text-align: center;
            max-width: 900px;
            margin: 0 auto;
            position: relative;
            z-index: 10;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255, 0, 127, 0.1);
            border: 1px solid rgba(255, 0, 127, 0.3);
            border-radius: 50px;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.85rem;
            margin-bottom: 25px;
            text-transform: uppercase;
            letter-spacing: 2px;
            box-shadow: 0 0 10px rgba(255, 0, 127, 0.1);
            animation: pulse 2s infinite;
        }

        .hero-title {
            font-size: 3.2rem;
            font-weight: 900;
            line-height: 1.25;
            margin-bottom: 25px;
            background: linear-gradient(135deg, #fff 30%, var(--primary) 70%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 0 40px rgba(127, 0, 255, 0.2);
        }

        .hero-desc {
            font-size: 1.2rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            line-height: 1.7;
        }

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

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            padding: 15px 35px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.05rem;
            box-shadow: 0 0 25px rgba(255, 0, 127, 0.5);
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 0 35px rgba(255, 0, 127, 0.8);
            border-color: rgba(255, 255, 255, 0.4);
        }

        .btn-outline {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-main);
            padding: 15px 35px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.05rem;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--accent);
            box-shadow: 0 0 20px rgba(0, 243, 255, 0.3);
            transform: translateY(-3px);
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 60px;
        }

        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 25px 20px;
            text-align: center;
            transition: var(--transition);
            backdrop-filter: blur(8px);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            border-color: var(--accent);
            box-shadow: 0 10px 25px rgba(0, 243, 255, 0.15);
        }

        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent);
            margin-bottom: 5px;
            text-shadow: 0 0 15px rgba(0, 243, 255, 0.4);
        }

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

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

        .about-text h3 {
            font-size: 1.8rem;
            color: #fff;
            margin-bottom: 20px;
            line-height: 1.3;
        }

        .about-p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 1rem;
        }

        .about-features {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .about-feature-item {
            display: flex;
            align-items: center;
            gap: 15px;
            background: rgba(255, 255, 255, 0.02);
            padding: 12px 20px;
            border-radius: 10px;
            border-left: 3px solid var(--primary);
        }

        .about-feature-item strong {
            color: var(--text-main);
            font-size: 1.05rem;
        }

        .about-graphic {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 40px;
            box-shadow: inset 0 0 30px rgba(127, 0, 255, 0.1);
            position: relative;
        }

        .about-graphic-item {
            padding: 20px;
            border-radius: 12px;
            background: rgba(8, 6, 18, 0.6);
            border: 1px solid rgba(255, 255, 255, 0.05);
            margin-bottom: 20px;
        }

        .about-graphic-item:last-child {
            margin-bottom: 0;
        }

        .about-graphic-title {
            color: var(--accent);
            font-weight: 700;
            margin-bottom: 5px;
            font-size: 1.1rem;
        }

        /* 全平台AIGC服务 & 场景能力 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 18px;
            padding: 35px 25px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

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

        .service-card:hover {
            transform: translateY(-8px);
            border-color: var(--border-hover);
            box-shadow: 0 15px 30px rgba(127, 0, 255, 0.2);
        }

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

        .service-icon {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 20px;
            display: inline-block;
        }

        .service-title {
            font-size: 1.35rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }

        .service-desc {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 20px;
        }

        .service-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .service-tag {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-main);
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.75rem;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        /* 轮播/展示支持的AI平台 */
        .platform-cloud {
            margin-top: 60px;
            text-align: center;
            background: rgba(255, 255, 255, 0.01);
            padding: 30px;
            border-radius: 16px;
            border: 1px dashed rgba(255, 255, 255, 0.1);
        }

        .platform-cloud-title {
            font-size: 1.1rem;
            color: var(--text-main);
            margin-bottom: 20px;
            font-weight: 600;
        }

        .tags-wrapper {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
        }

        .cloud-tag {
            background: rgba(127, 0, 255, 0.1);
            color: #d1c9ff;
            border: 1px solid rgba(127, 0, 255, 0.3);
            padding: 6px 15px;
            border-radius: 20px;
            font-size: 0.85rem;
            transition: var(--transition);
        }

        .cloud-tag:hover {
            background: var(--secondary);
            color: #fff;
            transform: scale(1.05);
            box-shadow: 0 0 15px var(--secondary);
        }

        /* 标准化AIGC流程 */
        .process-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
            position: relative;
            margin-top: 40px;
        }

        .process-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px 20px;
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .process-num {
            width: 45px;
            height: 45px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
            margin: 0 auto 20px;
            color: #fff;
            box-shadow: 0 0 15px rgba(255, 0, 127, 0.4);
        }

        .process-name {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: #fff;
        }

        .process-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 对比评测版块 */
        .comparison-section {
            background: linear-gradient(180deg, var(--bg-color), rgba(13, 11, 24, 0.8));
        }

        .rating-box {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            margin-bottom: 40px;
            background: rgba(255, 0, 127, 0.05);
            border: 1px solid var(--border-color);
            padding: 20px;
            border-radius: 12px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .rating-score {
            font-size: 3rem;
            font-weight: 900;
            color: var(--primary);
            text-shadow: 0 0 20px rgba(255, 0, 127, 0.6);
        }

        .rating-stars {
            display: flex;
            flex-direction: column;
            gap: 5px;
        }

        .stars {
            color: #ffb800;
            font-size: 1.3rem;
            letter-spacing: 2px;
        }

        .rating-label {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .comparison-table-wrapper {
            overflow-x: auto;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 700px;
        }

        .comparison-table th, .comparison-table td {
            padding: 16px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .comparison-table th {
            background: rgba(22, 17, 41, 0.9);
            color: #fff;
            font-weight: 700;
        }

        .comparison-table td {
            background: var(--bg-card);
            color: var(--text-muted);
        }

        .comparison-table tr:hover td {
            background: var(--bg-card-hover);
            color: var(--text-main);
        }

        .comparison-table .highlight {
            color: var(--accent);
            font-weight: 700;
        }

        .comparison-table .star-cell {
            color: var(--primary);
            font-weight: 700;
        }

        /* Token 比价参考 */
        .token-price-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .token-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 20px;
            text-align: center;
        }

        .token-card.best-value {
            border-color: var(--accent);
            box-shadow: 0 0 20px rgba(0, 243, 255, 0.15);
            position: relative;
        }

        .token-card.best-value::after {
            content: '推荐';
            position: absolute;
            top: 10px;
            right: 10px;
            background: var(--accent);
            color: #000;
            font-size: 0.75rem;
            font-weight: 800;
            padding: 2px 8px;
            border-radius: 4px;
        }

        .token-name {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 15px;
            color: #fff;
        }

        .token-price {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .token-unit {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 15px;
        }

        .token-features {
            list-style: none;
            text-align: left;
            font-size: 0.9rem;
            color: var(--text-muted);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 15px;
        }

        .token-features li {
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .token-features li::before {
            content: '✓';
            color: var(--accent);
            font-weight: bold;
        }

        /* 职业技术培训 / 人工智能培训 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
            margin-top: 40px;
        }

        .training-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 25px 15px;
            text-align: center;
            transition: var(--transition);
        }

        .training-card:hover {
            transform: translateY(-5px);
            border-color: var(--accent);
            box-shadow: 0 10px 20px rgba(0, 243, 255, 0.1);
        }

        .training-card h4 {
            font-size: 1.05rem;
            color: #fff;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .training-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .training-org {
            margin-top: 30px;
            text-align: center;
            padding: 20px;
            background: rgba(255, 0, 127, 0.03);
            border: 1px solid rgba(255, 0, 127, 0.1);
            border-radius: 10px;
            font-size: 0.95rem;
            color: var(--text-muted);
        }

        .training-org strong {
            color: var(--primary);
        }

        /* 客户案例中心 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

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

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

        .case-img-wrapper {
            position: relative;
            overflow: hidden;
            background: #000;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 250px;
        }

        .case-img-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

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

        .case-info {
            padding: 25px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .case-title {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .case-desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 15px;
            flex-grow: 1;
        }

        .case-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 15px;
        }

        .case-tag {
            color: var(--accent);
            font-weight: 600;
        }

        .case-result {
            color: var(--primary);
            font-weight: 600;
        }

        /* 客户评论卡片 */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
            margin-top: 40px;
        }

        .comment-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 14px;
            padding: 25px;
            position: relative;
        }

        .comment-text {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 20px;
            font-style: italic;
        }

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

        .comment-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 1rem;
        }

        .comment-user-info h5 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 700;
        }

        .comment-user-info span {
            color: var(--text-muted);
            font-size: 0.8rem;
        }

        /* 智能需求匹配表单 & 加盟代理 */
        .contact-layout {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 50px;
        }

        .form-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 40px;
        }

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

        .form-group label {
            display: block;
            color: var(--text-main);
            font-size: 0.95rem;
            margin-bottom: 8px;
            font-weight: 600;
        }

        .form-control {
            width: 100%;
            background: rgba(8, 6, 18, 0.8);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            padding: 12px 16px;
            color: var(--text-main);
            font-family: inherit;
            font-size: 0.95rem;
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 10px rgba(255, 0, 127, 0.25);
        }

        textarea.form-control {
            min-height: 120px;
            resize: vertical;
        }

        .form-submit-btn {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            border: none;
            border-radius: 30px;
            padding: 14px 30px;
            font-size: 1rem;
            font-weight: 700;
            cursor: pointer;
            width: 100%;
            box-shadow: 0 5px 15px rgba(255, 0, 127, 0.3);
            transition: var(--transition);
        }

        .form-submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(255, 0, 127, 0.5);
        }

        .contact-info-card {
            background: rgba(255, 255, 255, 0.02);
            border: 1px dashed rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .contact-meta-item {
            margin-bottom: 25px;
        }

        .contact-meta-item h4 {
            color: var(--accent);
            font-size: 1.1rem;
            margin-bottom: 8px;
        }

        .contact-meta-item p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .contact-meta-item a {
            color: var(--text-main);
            text-decoration: none;
            transition: var(--transition);
        }

        .contact-meta-item a:hover {
            color: var(--primary);
        }

        .partner-box {
            background: rgba(255, 0, 127, 0.05);
            border: 1px solid var(--border-color);
            padding: 20px;
            border-radius: 12px;
            text-align: center;
        }

        .partner-box h4 {
            color: #fff;
            margin-bottom: 10px;
        }

        /* FAQ折叠面板 & 自助排查 & 百科 */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-question {
            padding: 20px 25px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 700;
            color: #fff;
            user-select: none;
        }

        .faq-answer {
            padding: 0 25px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        .faq-item.active {
            border-color: var(--accent);
            background: var(--bg-card-hover);
        }

        .faq-item.active .faq-answer {
            padding: 0 25px 20px 25px;
            max-height: 500px;
            transition: max-height 0.3s cubic-bezier(1, 0, 1, 0);
        }

        .faq-icon::before {
            content: '+';
            font-size: 1.3rem;
            color: var(--primary);
            transition: var(--transition);
            display: inline-block;
        }

        .faq-item.active .faq-icon::before {
            content: '−';
            transform: rotate(90deg);
            color: var(--accent);
        }

        /* 百科 & 故障排除列表 */
        .wiki-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            margin-top: 40px;
        }

        .wiki-block {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
        }

        .wiki-block h3 {
            font-size: 1.4rem;
            color: #fff;
            margin-bottom: 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            padding-bottom: 10px;
        }

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

        .wiki-list li {
            margin-bottom: 15px;
        }

        .wiki-list li strong {
            color: var(--accent);
            display: block;
            margin-bottom: 4px;
        }

        .wiki-list li p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* 行业资讯 / 知识库 / 最新文章 */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .article-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 25px;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }

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

        .article-tag {
            font-size: 0.75rem;
            color: var(--primary);
            font-weight: 700;
            margin-bottom: 10px;
            text-transform: uppercase;
        }

        .article-title {
            font-size: 1.15rem;
            color: #fff;
            font-weight: 700;
            margin-bottom: 15px;
            line-height: 1.4;
        }

        .article-link {
            color: var(--accent);
            text-decoration: none;
            font-size: 0.9rem;
            font-weight: 600;
            margin-top: auto;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .article-link:hover {
            text-shadow: 0 0 8px rgba(0, 243, 255, 0.6);
        }

        /* 页脚 */
        footer {
            background: #040309;
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px 0;
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo-desc h4 {
            font-size: 1.3rem;
            color: #fff;
            margin-bottom: 15px;
        }

        .footer-links h5, .footer-contact h5 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 20px;
            position: relative;
        }

        .footer-links ul {
            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(--primary);
            padding-left: 5px;
        }

        .footer-contact p {
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .friend-links-box {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 25px;
            margin-top: 25px;
        }

        .friend-links-title {
            font-size: 0.85rem;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .friend-links-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .friend-links-list a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.8rem;
            background: rgba(255, 255, 255, 0.02);
            padding: 4px 10px;
            border-radius: 4px;
            border: 1px solid rgba(255, 255, 255, 0.05);
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 30px;
            text-align: center;
            font-size: 0.8rem;
        }

        /* 侧边悬浮二维码/客服 */
        .float-widget {
            position: fixed;
            bottom: 40px;
            right: 25px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-item {
            width: 48px;
            height: 48px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(255, 0, 127, 0.4);
            position: relative;
            transition: var(--transition);
        }

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

        .float-item svg {
            width: 22px;
            height: 22px;
            fill: currentColor;
        }

        .qr-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: 12px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
            display: none;
            text-align: center;
            width: 150px;
        }

        .qr-popover img {
            width: 120px;
            height: 120px;
            margin-bottom: 8px;
            border-radius: 4px;
        }

        .qr-popover span {
            font-size: 0.8rem;
            color: var(--text-main);
            display: block;
        }

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

        /* 基础动画 */
        @keyframes pulse {
            0% { transform: scale(1); box-shadow: 0 0 10px rgba(255, 0, 127, 0.2); }
            50% { transform: scale(1.03); box-shadow: 0 0 20px rgba(255, 0, 127, 0.5); }
            100% { transform: scale(1); box-shadow: 0 0 10px rgba(255, 0, 127, 0.2); }
        }

        /* 响应式适配 */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-flow {
                grid-template-columns: repeat(2, 1fr);
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .comments-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }

            .nav-menu {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 70px);
                background: var(--bg-color);
                flex-direction: column;
                align-items: center;
                padding: 40px 0;
                transition: var(--transition);
                z-index: 998;
                border-top: 1px solid rgba(255, 255, 255, 0.05);
            }

            .nav-menu.active {
                left: 0;
            }

            .about-layout, .contact-layout, .case-grid, .wiki-grid {
                grid-template-columns: 1fr;
            }

            .hero-title {
                font-size: 2.2rem;
            }

            .stats-grid, .training-grid, .comments-grid {
                grid-template-columns: 1fr;
            }

            .token-price-grid {
                grid-template-columns: 1fr;
            }

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