:root {
            --primary: #4f46e5;
            --primary-light: #818cf8;
            --secondary: #ec4899;
            --accent: #06b6d4;
            --text-main: #1f2937;
            --text-muted: #4b5563;
            --bg-base: #f8fafc;
            --bg-card: #ffffff;
            --gradient-rainbow: linear-gradient(135deg, #e0f2fe 0%, #fef08a 30%, #fbcfe8 70%, #e0e7ff 100%);
            --gradient-button: linear-gradient(135deg, #4f46e5 0%, #ec4899 100%);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 36px rgba(79, 70, 229, 0.15);
            --border-radius: 16px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-main);
            background-color: var(--bg-base);
            background-image: radial-gradient(at 0% 0%, hsla(253,16%,7%,0) 0, transparent 50%),
                              radial-gradient(at 50% 0%, rgba(236, 72, 153, 0.08) 0, transparent 50%),
                              radial-gradient(at 100% 0%, rgba(6, 182, 212, 0.08) 0, transparent 50%);
            line-height: 1.6;
            overflow-x: hidden;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 斑斓色彩装饰背景 */
        .color-spot {
            position: absolute;
            border-radius: 50%;
            filter: blur(100px);
            z-index: -1;
            opacity: 0.6;
        }

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(229, 231, 235, 0.5);
            z-index: 1000;
            transition: var(--transition);
        }

        .nav-wrapper {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 72px;
        }

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

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

        .brand-name {
            font-size: 20px;
            font-weight: 800;
            background: linear-gradient(to right, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 24px;
        }

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

        .nav-menu a:hover, .nav-menu a.active {
            color: var(--primary);
        }

        .nav-menu a::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--gradient-button);
            transition: var(--transition);
        }

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

        .nav-btn {
            background: var(--gradient-button);
            color: #ffffff !important;
            padding: 8px 20px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            text-decoration: none;
            box-shadow: 0 4px 12px rgba(79, 70, 229, 0.2);
            transition: var(--transition);
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(79, 70, 229, 0.3);
        }

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

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

        /* Hero 首屏 - 纯 CSS 视觉渲染，无图 */
        .hero {
            position: relative;
            padding: 160px 0 100px;
            text-align: center;
            overflow: hidden;
        }

        .hero-glow-1 {
            width: 400px;
            height: 400px;
            background: rgba(79, 70, 229, 0.15);
            left: -100px;
            top: 50px;
            position: absolute;
            border-radius: 50%;
            filter: blur(120px);
            z-index: -1;
        }

        .hero-glow-2 {
            width: 400px;
            height: 400px;
            background: rgba(236, 72, 153, 0.15);
            right: -100px;
            bottom: 50px;
            position: absolute;
            border-radius: 50%;
            filter: blur(120px);
            z-index: -1;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.8);
            border: 1px solid rgba(229, 231, 235, 0.8);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 14px;
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 24px;
            box-shadow: var(--shadow-sm);
        }

        .hero-badge span {
            background: var(--gradient-button);
            width: 8px;
            height: 8px;
            border-radius: 50%;
            display: inline-block;
        }

        .hero h1 {
            font-size: 48px;
            line-height: 1.2;
            font-weight: 800;
            letter-spacing: -1px;
            margin-bottom: 24px;
            color: var(--text-main);
        }

        .hero h1 span {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 50%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero p {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 40px;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-primary {
            background: var(--gradient-button);
            color: #ffffff;
            padding: 14px 32px;
            border-radius: 30px;
            font-size: 16px;
            font-weight: 600;
            text-decoration: none;
            box-shadow: var(--shadow-lg);
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 20px 40px rgba(79, 70, 229, 0.25);
        }

        .btn-secondary {
            background: #ffffff;
            color: var(--text-main);
            border: 1px solid rgba(229, 231, 235, 1);
            padding: 14px 32px;
            border-radius: 30px;
            font-size: 16px;
            font-weight: 600;
            text-decoration: none;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .btn-secondary:hover {
            background: #f1f5f9;
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }

        /* 统一卡片样式 */
        section {
            padding: 100px 0;
            position: relative;
        }

        .section-header {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-tag {
            font-size: 14px;
            font-weight: 700;
            color: var(--secondary);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 12px;
            display: block;
        }

        .section-title {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 20px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }

        /* 关于我们 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--primary);
        }

        .about-text p {
            color: var(--text-muted);
            margin-bottom: 24px;
            font-size: 16px;
        }

        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .about-feat-item {
            background: var(--bg-card);
            padding: 20px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(229, 231, 235, 0.5);
            transition: var(--transition);
        }

        .about-feat-item:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }

        .about-feat-item h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-main);
        }

        .about-feat-item p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        .about-image-wrapper {
            position: relative;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .about-image-wrapper img {
            width: 100%;
            height: auto;
            display: block;
            object-fit: cover;
            border-radius: var(--border-radius);
        }

        /* 数据指标 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .stat-card {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            padding: 30px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(229, 231, 235, 0.5);
            position: relative;
            overflow: hidden;
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-md);
        }

        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--gradient-button);
        }

        .stat-num {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

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

        .service-card {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            padding: 32px;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(229, 231, 235, 0.5);
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }

        .service-icon {
            width: 48px;
            height: 48px;
            background: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(236, 72, 153, 0.1));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 24px;
            color: var(--primary);
        }

        .service-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 14px;
            margin-bottom: 20px;
        }

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

        .service-tag-item {
            background: #f1f5f9;
            color: var(--text-muted);
            font-size: 12px;
            padding: 4px 10px;
            border-radius: 30px;
        }

        /* 标签云组件 */
        .tag-cloud-wrapper {
            margin-top: 50px;
            background: var(--bg-card);
            padding: 30px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(229, 231, 235, 0.5);
            text-align: center;
        }

        .tag-cloud-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--text-main);
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }

        .tag-cloud span {
            background: linear-gradient(135deg, rgba(79, 70, 229, 0.05) 0%, rgba(236, 72, 153, 0.05) 100%);
            border: 1px solid rgba(229, 231, 235, 0.8);
            color: var(--text-muted);
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 500;
            transition: var(--transition);
        }

        .tag-cloud span:hover {
            background: var(--gradient-button);
            color: #ffffff;
            transform: scale(1.05);
            border-color: transparent;
        }

        /* 一站式AIGC制作场景 */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .scene-card {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            padding: 24px;
            border: 1px solid rgba(229, 231, 235, 0.5);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .scene-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }

        .scene-card h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .scene-card h4::before {
            content: "✓";
            color: var(--accent);
            font-weight: bold;
        }

        .scene-card p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 全行业解决方案与服务网络 */
        .solution-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .solution-card {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            padding: 36px;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(229, 231, 235, 0.5);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .solution-top h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--primary);
        }

        .solution-top p {
            color: var(--text-muted);
            font-size: 15px;
            margin-bottom: 24px;
        }

        .solution-list {
            list-style: none;
            margin-bottom: 24px;
        }

        .solution-list li {
            font-size: 14px;
            color: var(--text-main);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .solution-list li::before {
            content: "✦";
            color: var(--secondary);
        }

        /* 全国服务网络 */
        .network-section {
            background: rgba(255, 255, 255, 0.6);
            border-top: 1px solid rgba(229, 231, 235, 0.5);
            border-bottom: 1px solid rgba(229, 231, 235, 0.5);
        }

        .network-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .network-map-placeholder {
            background: radial-gradient(circle, rgba(236, 72, 153, 0.1) 0%, rgba(79, 70, 229, 0.1) 100%);
            border-radius: var(--border-radius);
            height: 350px;
            position: relative;
            border: 1px solid rgba(229, 231, 235, 0.8);
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .network-map-inner {
            text-align: center;
        }

        .network-dot {
            position: absolute;
            background: var(--primary);
            width: 10px;
            height: 10px;
            border-radius: 50%;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0% { transform: scale(1); opacity: 1; box-shadow: 0 0 0 0 rgba(79, 70, 229, 0.7); }
            70% { transform: scale(1.5); opacity: 0.5; box-shadow: 0 0 0 10px rgba(79, 70, 229, 0); }
            100% { transform: scale(1); opacity: 1; box-shadow: 0 0 0 0 rgba(79, 70, 229, 0); }
        }

        /* 标准化AIGC流程 */
        .process-flow {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 16px;
            position: relative;
        }

        .process-step {
            background: var(--bg-card);
            border: 1px solid rgba(229, 231, 235, 0.5);
            border-radius: var(--border-radius);
            padding: 24px 16px;
            text-align: center;
            position: relative;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .process-step:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }

        .process-num {
            width: 36px;
            height: 36px;
            background: var(--gradient-button);
            color: #ffffff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-weight: 700;
            font-size: 14px;
        }

        .process-step h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-main);
        }

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

        /* 技术标准 */
        .standards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .standard-card {
            background: var(--bg-card);
            padding: 24px;
            border-radius: var(--border-radius);
            border-left: 4px solid var(--accent);
            box-shadow: var(--shadow-sm);
        }

        .standard-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .standard-card p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 客户案例中心 */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .case-card {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(229, 231, 235, 0.5);
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-md);
        }

        .case-img-container {
            width: 100%;
            height: 200px;
            overflow: hidden;
            position: relative;
        }

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

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

        .case-content {
            padding: 24px;
        }

        .case-badge {
            display: inline-block;
            background: rgba(6, 182, 212, 0.1);
            color: var(--accent);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 30px;
            margin-bottom: 12px;
        }

        .case-content h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .case-content p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 对比评测 - 专业对比表格 */
        .comparison-table-wrapper {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-md);
            border: 1px solid rgba(229, 231, 235, 0.8);
            overflow-x: auto;
            margin-bottom: 40px;
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 800px;
        }

        .comparison-table th, .comparison-table td {
            padding: 20px 24px;
            border-bottom: 1px solid #f1f5f9;
        }

        .comparison-table th {
            background: #f8fafc;
            color: var(--text-main);
            font-weight: 700;
        }

        .comparison-table tr:hover td {
            background: #fafafa;
        }

        .comparison-table td.highlight {
            background: rgba(79, 70, 229, 0.02);
            font-weight: 600;
            color: var(--primary);
        }

        .rating-badge {
            background: linear-gradient(135deg, #fef08a 0%, #fde047 100%);
            color: #854d0e;
            padding: 4px 10px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 700;
            display: inline-block;
        }

        .compare-score-card {
            background: var(--gradient-rainbow);
            border-radius: var(--border-radius);
            padding: 40px;
            text-align: center;
            border: 1px solid rgba(229, 231, 235, 0.5);
            box-shadow: var(--shadow-sm);
        }

        .compare-score-card h3 {
            font-size: 24px;
            color: var(--text-main);
            margin-bottom: 16px;
            font-weight: 800;
        }

        .score-display {
            font-size: 64px;
            font-weight: 900;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 10px;
        }

        .score-display span {
            font-size: 24px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* Token比价与匹配 */
        .token-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: flex-start;
        }

        .price-card {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(229, 231, 235, 0.5);
        }

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

        .price-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid #f1f5f9;
        }

        .price-item:last-child {
            border-bottom: none;
        }

        .price-item-name {
            font-weight: 600;
            font-size: 14px;
        }

        .price-value-old {
            text-decoration: line-through;
            color: #9ca3af;
            font-size: 12px;
            margin-right: 8px;
        }

        .price-value-new {
            color: var(--secondary);
            font-weight: 700;
            font-size: 14px;
        }

        /* 培训版块 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .training-card {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            padding: 24px 16px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(229, 231, 235, 0.5);
            transition: var(--transition);
        }

        .training-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }

        .training-card h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
            min-height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .training-badge {
            background: rgba(79, 70, 229, 0.1);
            color: var(--primary);
            font-size: 11px;
            padding: 4px 8px;
            border-radius: 4px;
            font-weight: 600;
        }

        /* FAQ折叠面板 */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            border: 1px solid rgba(229, 231, 235, 0.5);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-question {
            padding: 20px 24px;
            font-weight: 700;
            font-size: 16px;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            background: #ffffff;
        }

        .faq-question::after {
            content: "+";
            font-size: 20px;
            color: var(--primary);
            transition: var(--transition);
        }

        .faq-item.active .faq-question::after {
            content: "−";
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: #fafbfc;
        }

        .faq-answer-content {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 自助排查与百科 */
        .troubleshoot-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
        }

        .glossary-card {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(229, 231, 235, 0.5);
        }

        .glossary-item {
            margin-bottom: 20px;
        }

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

        .glossary-item dt {
            font-weight: 700;
            color: var(--primary);
            font-size: 15px;
            margin-bottom: 4px;
        }

        .glossary-item dd {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 客户评论卡片 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .review-card {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(229, 231, 235, 0.5);
            position: relative;
        }

        .review-text {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
            font-style: italic;
        }

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

        .review-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-light), var(--secondary));
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }

        .review-info h5 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-main);
        }

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

        /* 知识库/行业资讯 */
        .articles-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .article-item {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            padding: 24px;
            border: 1px solid rgba(229, 231, 235, 0.5);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: var(--transition);
        }

        .article-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }

        .article-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            text-decoration: none;
            margin-bottom: 12px;
            display: block;
            line-height: 1.4;
            transition: var(--transition);
        }

        .article-title:hover {
            color: var(--primary);
        }

        .article-meta {
            font-size: 12px;
            color: var(--text-muted);
            display: flex;
            justify-content: space-between;
        }

        /* 联系我们 & 加盟代理 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 50px;
        }

        .contact-form-container {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            padding: 40px;
            box-shadow: var(--shadow-md);
            border: 1px solid rgba(229, 231, 235, 0.8);
        }

        .form-title {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 24px;
        }

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

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid rgba(229, 231, 235, 1);
            border-radius: 8px;
            font-size: 14px;
            background: #fafafa;
            color: var(--text-main);
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            background: #ffffff;
            box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
        }

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

        .contact-info-container {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }

        .info-card {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(229, 231, 235, 0.5);
        }

        .info-card h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .info-details p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .info-details strong {
            color: var(--text-main);
        }

        .qrcode-area {
            display: flex;
            align-items: center;
            gap: 20px;
            margin-top: 20px;
        }

        .qrcode-area img {
            width: 100px;
            height: 100px;
            border-radius: 8px;
            border: 1px solid rgba(229, 231, 235, 1);
        }

        /* 友情链接 */
        .friendship-links {
            background: #ffffff;
            padding: 30px 0;
            border-top: 1px solid rgba(229, 231, 235, 0.5);
            border-bottom: 1px solid rgba(229, 231, 235, 0.5);
        }

        .links-wrapper {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
            font-size: 13px;
        }

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

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

        /* 页脚 */
        footer {
            background: #111827;
            color: #9ca3af;
            padding: 60px 0 30px;
            font-size: 14px;
        }

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

        .footer-brand h4 {
            color: #ffffff;
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .footer-brand p {
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .footer-links h5 {
            color: #ffffff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
        }

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

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

        .footer-links ul li a {
            color: #9ca3af;
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-links ul li a:hover {
            color: #ffffff;
        }

        .footer-bottom {
            border-top: 1px solid #1f2937;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        .footer-bottom p {
            font-size: 13px;
        }

        .ai-page-home-link {
            color: #ffffff;
            text-decoration: none;
            font-weight: 600;
        }

        /* 浮动客服入口 */
        .float-contact {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-btn {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: #ffffff;
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid rgba(229, 231, 235, 0.5);
            position: relative;
        }

        .float-btn:hover {
            transform: translateY(-3px);
            background: var(--gradient-button);
            color: #ffffff !important;
        }

        .float-btn svg {
            width: 24px;
            height: 24px;
            fill: currentColor;
        }

        .float-btn .tooltip {
            position: absolute;
            right: 64px;
            background: #111827;
            color: #ffffff;
            padding: 8px 12px;
            border-radius: 6px;
            font-size: 12px;
            white-space: nowrap;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }

        .float-btn:hover .tooltip {
            opacity: 1;
            visibility: visible;
        }

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

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: #ffffff;
                padding: 20px;
                box-shadow: var(--shadow-md);
                border-top: 1px solid rgba(229, 231, 235, 0.5);
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .hero h1 {
                font-size: 32px;
            }
            .about-grid, .network-wrapper, .token-grid, .troubleshoot-grid, .contact-grid, .footer-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid, .cases-grid, .reviews-grid {
                grid-template-columns: 1fr;
            }
            .training-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-flow {
                grid-template-columns: repeat(2, 1fr);
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
        }