/* 基础变量与重置 */
        :root {
            --primary-gradient: linear-gradient(135deg, #a1c4fd 0%, #c2e9fb 100%);
            --laser-gradient: linear-gradient(90deg, #ff9a9e 0%, #fecfef 99%, #fecfef 100%);
            --laser-active: linear-gradient(45deg, #8ec5fc 0%, #e0c3fc 100%);
            --bg-light: #f8fafc;
            --text-dark: #1e293b;
            --text-muted: #64748b;
            --accent-purple: #8b5cf6;
            --accent-blue: #3b82f6;
            --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            --card-hover-shadow: 0 15px 35px rgba(139, 92, 246, 0.15);
        }

        * {
            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-light);
            color: var(--text-dark);
        }

        body {
            min-height: 100vh;
            line-height: 1.6;
            overflow-x: hidden;
            background: radial-gradient(circle at 10% 20%, rgba(243, 244, 246, 0.8) 0%, rgba(229, 231, 235, 0.5) 90%);
        }

        /* 统一容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 70px;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(10px);
            z-index: 1000;
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

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

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

        .brand-name {
            font-size: 20px;
            font-weight: 800;
            background: linear-gradient(45deg, #3b82f6, #8b5cf6, #ec4899);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        nav {
            display: flex;
            gap: 20px;
        }

        nav a {
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 500;
            font-size: 14px;
            transition: color 0.3s ease;
        }

        nav a:hover {
            color: var(--accent-purple);
        }

        .nav-btn {
            background: var(--laser-active);
            color: #fff;
            padding: 8px 16px;
            border-radius: 20px;
            font-weight: 600;
            box-shadow: 0 4px 10px rgba(139, 92, 246, 0.2);
            transition: transform 0.2s;
            text-shadow: 0 1px 2px rgba(0,0,0,0.1);
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            color: #fff;
        }

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

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background: var(--text-dark);
            border-radius: 3px;
            transition: 0.3s;
        }

        /* Hero 区域（无图片） */
        .hero {
            padding: 150px 0 80px 0;
            background: linear-gradient(135deg, rgba(238, 242, 255, 0.6) 0%, rgba(253, 244, 255, 0.6) 100%);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -10%;
            left: -10%;
            width: 120%;
            height: 120%;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.08) 0%, transparent 60%);
            z-index: 1;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
            margin: 0 auto;
        }

        .badge-main {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255,255,255,0.9);
            border: 1px solid rgba(236, 72, 153, 0.3);
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-purple);
            margin-bottom: 24px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.05);
        }

        .hero h1 {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.25;
            color: #0f172a;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

        .hero h1 span {
            background: linear-gradient(90deg, #3b82f6, #8b5cf6, #ec4899);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 18px;
            color: var(--text-muted);
            margin-bottom: 35px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-bottom: 50px;
        }

        .btn-primary {
            display: inline-block;
            background: var(--laser-active);
            color: #2d3748;
            font-weight: 700;
            padding: 15px 35px;
            border-radius: 30px;
            text-decoration: none;
            box-shadow: 0 8px 20px rgba(139, 92, 246, 0.25);
            transition: all 0.3s ease;
            border: 1px solid rgba(255,255,255,0.4);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 25px rgba(139, 92, 246, 0.4);
        }

        .btn-secondary {
            display: inline-block;
            background: rgba(255, 255, 255, 0.9);
            color: var(--text-dark);
            font-weight: 600;
            padding: 15px 35px;
            border-radius: 30px;
            text-decoration: none;
            border: 1px solid rgba(226, 232, 240, 1);
            transition: all 0.3s ease;
        }

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

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

        .stat-card {
            background: rgba(255, 255, 255, 0.85);
            border: 1px solid rgba(255,255,255,0.7);
            border-radius: 16px;
            padding: 24px;
            box-shadow: var(--card-shadow);
            backdrop-filter: blur(10px);
            transition: all 0.3s ease;
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--card-hover-shadow);
        }

        .stat-num {
            font-size: 32px;
            font-weight: 800;
            background: linear-gradient(135deg, #3b82f6, #8b5cf6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 8px;
        }

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

        /* 通用区块样式 */
        .section {
            padding: 90px 0;
            position: relative;
        }

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

        .section-tag {
            font-size: 13px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--accent-purple);
            margin-bottom: 12px;
            display: block;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: #0f172a;
            margin-bottom: 15px;
        }

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

        /* 关于我们与平台介绍 */
        .intro-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 50px;
            align-items: center;
        }

        .intro-content h3 {
            font-size: 24px;
            margin-bottom: 15px;
            color: #1e293b;
        }

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

        .intro-features {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin-top: 30px;
        }

        .intro-feat-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-dark);
        }

        .intro-feat-item svg {
            color: var(--accent-purple);
            flex-shrink: 0;
        }

        .intro-card {
            background: linear-gradient(135deg, rgba(255,255,255,0.9) 0%, rgba(241,245,249,0.9) 100%);
            border: 1px solid #e2e8f0;
            border-radius: 24px;
            padding: 40px;
            box-shadow: var(--card-shadow);
            position: relative;
            overflow: hidden;
        }

        .intro-card::after {
            content: '';
            position: absolute;
            bottom: -50px;
            right: -50px;
            width: 150px;
            height: 150px;
            background: var(--laser-gradient);
            opacity: 0.15;
            filter: blur(40px);
            border-radius: 50%;
        }

        /* 全平台 AIGC 服务 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .service-card {
            background: #fff;
            border: 1px solid rgba(226, 232, 240, 0.8);
            border-radius: 20px;
            padding: 30px;
            box-shadow: var(--card-shadow);
            transition: all 0.3s ease;
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--card-hover-shadow);
            border-color: rgba(167, 139, 250, 0.4);
        }

        .service-icon {
            width: 50px;
            height: 50px;
            border-radius: 12px;
            background: rgba(139, 92, 246, 0.1);
            color: var(--accent-purple);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 20px;
            margin-bottom: 12px;
            color: #0f172a;
        }

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

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .tag-cloud span {
            background: #f1f5f9;
            color: #475569;
            font-size: 11px;
            padding: 3px 8px;
            border-radius: 4px;
            font-weight: 500;
        }

        /* 一站式AIGC制作 */
        .one-stop-box {
            background: linear-gradient(135deg, rgba(255,255,255,0.8), rgba(255,255,255,0.9));
            border: 1px solid rgba(226,232,240,0.8);
            border-radius: 24px;
            padding: 40px;
            box-shadow: var(--card-shadow);
        }

        .model-list-wrapper {
            margin-top: 30px;
            padding-top: 30px;
            border-top: 1px dashed #e2e8f0;
        }

        .model-list-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 15px;
            text-align: center;
        }

        .models-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .model-badge {
            background: #fff;
            border: 1px solid #cbd5e1;
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 500;
            color: #334155;
            transition: all 0.2s;
            box-shadow: 0 2px 4px rgba(0,0,0,0.02);
        }

        .model-badge:hover {
            border-color: var(--accent-purple);
            color: var(--accent-purple);
            transform: scale(1.05);
        }

        /* 全行业解决方案 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .solution-card {
            background: #fff;
            border-radius: 20px;
            border: 1px solid #e2e8f0;
            overflow: hidden;
            box-shadow: var(--card-shadow);
            transition: transform 0.3s;
        }

        .solution-card:hover {
            transform: translateY(-5px);
        }

        .solution-info {
            padding: 24px;
        }

        .solution-info h4 {
            font-size: 18px;
            margin-bottom: 10px;
            color: #0f172a;
        }

        .solution-info p {
            color: var(--text-muted);
            font-size: 14px;
            margin-bottom: 15px;
        }

        /* 全国服务网络 */
        .network-section {
            background: linear-gradient(135deg, rgba(238, 242, 255, 0.4), rgba(243, 244, 246, 0.4));
        }

        .network-layout {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
            align-items: center;
        }

        .network-details h4 {
            font-size: 22px;
            margin-bottom: 15px;
        }

        .network-cities {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }

        .city-tag {
            background: #fff;
            border: 1px solid #e2e8f0;
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-dark);
            box-shadow: 0 2px 4px rgba(0,0,0,0.02);
        }

        .network-illustration {
            border: 1px solid #e2e8f0;
            border-radius: 24px;
            padding: 30px;
            background: #fff;
            box-shadow: var(--card-shadow);
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .net-stat-row {
            display: flex;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid #f1f5f9;
        }

        .net-stat-row:last-child {
            border-bottom: none;
        }

        /* 标准化AIGC流程 & 技术标准 */
        .workflow-timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding: 20px 0;
        }

        .workflow-timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 2px;
            background: #e2e8f0;
            transform: translateX(-50%);
        }

        .timeline-item {
            position: relative;
            width: 50%;
            padding: 20px 40px;
            box-sizing: border-box;
        }

        .timeline-item:nth-child(odd) {
            left: 0;
            text-align: right;
        }

        .timeline-item:nth-child(even) {
            left: 50%;
            text-align: left;
        }

        .timeline-dot {
            position: absolute;
            top: 30px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--accent-purple);
            border: 4px solid #fff;
            box-shadow: 0 0 10px rgba(139, 92, 246, 0.4);
            z-index: 2;
        }

        .timeline-item:nth-child(odd) .timeline-dot {
            right: -8px;
        }

        .timeline-item:nth-child(even) .timeline-dot {
            left: -8px;
        }

        .timeline-card {
            background: #fff;
            border: 1px solid #e2e8f0;
            border-radius: 16px;
            padding: 20px;
            box-shadow: var(--card-shadow);
        }

        .timeline-card h4 {
            font-size: 16px;
            margin-bottom: 8px;
            color: #0f172a;
        }

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

        /* 技术标准组件 */
        .tech-standards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .standard-card {
            background: rgba(255, 255, 255, 0.9);
            border: 1px solid rgba(226,232,240,0.8);
            border-radius: 12px;
            padding: 20px;
            text-align: center;
        }

        .standard-card h5 {
            font-size: 15px;
            margin-bottom: 6px;
            color: var(--text-dark);
        }

        .standard-card span {
            font-size: 12px;
            color: var(--text-muted);
        }

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

        .case-card {
            background: #fff;
            border-radius: 20px;
            border: 1px solid #e2e8f0;
            overflow: hidden;
            box-shadow: var(--card-shadow);
        }

        .case-img-box {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: #f1f5f9;
        }

        .case-img-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }

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

        .case-content {
            padding: 24px;
        }

        .case-tag {
            display: inline-block;
            padding: 4px 10px;
            background: rgba(59, 130, 246, 0.1);
            color: var(--accent-blue);
            font-size: 12px;
            border-radius: 4px;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .case-title {
            font-size: 18px;
            margin-bottom: 8px;
            color: #0f172a;
        }

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

        /* 对比评测 (9.9分) */
        .comparison-wrapper {
            background: #fff;
            border: 1px solid #e2e8f0;
            border-radius: 24px;
            padding: 40px;
            box-shadow: var(--card-shadow);
        }

        .score-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid #f1f5f9;
            padding-bottom: 24px;
            margin-bottom: 30px;
            flex-wrap: wrap;
            gap: 20px;
        }

        .score-left h3 {
            font-size: 22px;
            margin-bottom: 6px;
        }

        .score-right {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .score-badge {
            background: linear-gradient(135deg, #f59e0b, #d97706);
            color: #fff;
            padding: 8px 16px;
            border-radius: 12px;
            font-weight: 800;
            font-size: 24px;
        }

        .score-stars {
            color: #fbbf24;
            font-size: 20px;
        }

        .comp-table-container {
            overflow-x: auto;
        }

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

        .comp-table th, .comp-table td {
            padding: 16px;
            border-bottom: 1px solid #f1f5f9;
            font-size: 14px;
        }

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

        .comp-table tr:hover td {
            background: #f8fafc;
        }

        .highlight-cell {
            background: rgba(139, 92, 246, 0.05);
            font-weight: 600;
            color: var(--accent-purple);
        }

        /* 需求匹配与 Token 比价 */
        .interactive-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 40px;
        }

        .form-box {
            background: #fff;
            border: 1px solid #e2e8f0;
            border-radius: 20px;
            padding: 30px;
            box-shadow: var(--card-shadow);
        }

        .form-title {
            font-size: 20px;
            margin-bottom: 20px;
            font-weight: 700;
        }

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

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

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #cbd5e1;
            border-radius: 8px;
            font-size: 14px;
            transition: border-color 0.3s;
            outline: none;
        }

        .form-control:focus {
            border-color: var(--accent-purple);
        }

        .btn-submit {
            width: 100%;
            background: var(--laser-active);
            color: #fff;
            font-weight: 700;
            padding: 14px;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            box-shadow: 0 4px 12px rgba(139, 92, 246, 0.2);
            transition: all 0.3s;
            text-shadow: 0 1px 2px rgba(0,0,0,0.1);
        }

        .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 15px rgba(139, 92, 246, 0.3);
        }

        /* Token 比价 */
        .token-pricing {
            background: #fff;
            border: 1px solid #e2e8f0;
            border-radius: 20px;
            padding: 30px;
            box-shadow: var(--card-shadow);
        }

        .token-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 20px;
        }

        .token-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .token-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 14px;
            background: #f8fafc;
            border-radius: 8px;
            font-size: 13px;
        }

        .token-name {
            font-weight: 600;
            color: var(--text-dark);
        }

        .token-price {
            font-family: monospace;
            font-weight: 700;
            color: #10b981;
        }

        /* 培训中心 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .training-card {
            background: #fff;
            border: 1px solid #e2e8f0;
            border-radius: 20px;
            padding: 30px;
            box-shadow: var(--card-shadow);
        }

        .training-card h4 {
            font-size: 18px;
            margin-bottom: 15px;
            color: #0f172a;
        }

        .course-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

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

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

        .course-badge {
            background: rgba(139, 92, 246, 0.1);
            color: var(--accent-purple);
            font-size: 11px;
            padding: 2px 8px;
            border-radius: 4px;
        }

        /* 加盟代理 */
        .agent-banner {
            background: linear-gradient(135deg, rgba(238,242,255,0.8), rgba(245,243,255,0.8));
            border: 1px solid #e2e8f0;
            border-radius: 24px;
            padding: 50px;
            text-align: center;
            box-shadow: var(--card-shadow);
        }

        .agent-banner h3 {
            font-size: 28px;
            margin-bottom: 15px;
        }

        .agent-banner p {
            color: var(--text-muted);
            max-width: 700px;
            margin: 0 auto 30px auto;
        }

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

        .faq-item {
            background: #fff;
            border: 1px solid #e2e8f0;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 6px rgba(0,0,0,0.02);
            transition: all 0.3s;
        }

        .faq-question {
            padding: 18px 20px;
            font-size: 15px;
            font-weight: 700;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: #fff;
            user-select: none;
        }

        .faq-question::after {
            content: '+';
            font-size: 18px;
            color: var(--text-muted);
            transition: transform 0.3s;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            background: #f8fafc;
        }

        .faq-answer-content {
            padding: 20px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            border-top: 1px solid #f1f5f9;
        }

        .faq-item.active .faq-answer {
            max-height: 1000px;
            transition: max-height 0.5s cubic-bezier(1, 0, 1, 0);
        }

        /* 故障排查与术语百科 */
        .knowledge-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .knowledge-box {
            background: #fff;
            border-radius: 20px;
            border: 1px solid #e2e8f0;
            padding: 30px;
            box-shadow: var(--card-shadow);
        }

        .knowledge-box h4 {
            font-size: 18px;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .knowledge-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .knowledge-item h5 {
            font-size: 14px;
            color: var(--text-dark);
            margin-bottom: 6px;
        }

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

        /* 用户评论 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .review-card {
            background: #fff;
            border: 1px solid #e2e8f0;
            border-radius: 16px;
            padding: 24px;
            box-shadow: var(--card-shadow);
        }

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

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

        .review-avatar-text {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--laser-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 14px;
            color: #4a5568;
        }

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

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

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

        .article-card {
            background: #fff;
            border: 1px solid #e2e8f0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--card-shadow);
        }

        .article-content {
            padding: 20px;
        }

        .article-date {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 8px;
            display: block;
        }

        .article-title {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 12px;
            color: #0f172a;
        }

        .article-link {
            font-size: 13px;
            color: var(--accent-purple);
            text-decoration: none;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* 联系我们 */
        .contact-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .contact-info-list {
            display: flex;
            flex-direction: column;
            gap: 25px;
        }

        .contact-info-item {
            display: flex;
            align-items: flex-start;
            gap: 15px;
        }

        .contact-info-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(59, 130, 246, 0.1);
            color: var(--accent-blue);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .contact-info-text h5 {
            font-size: 16px;
            margin-bottom: 4px;
        }

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

        .qrcode-box {
            display: flex;
            gap: 20px;
            margin-top: 30px;
        }

        .qrcode-item {
            text-align: center;
        }

        .qrcode-item img {
            width: 120px;
            height: 120px;
            border: 1px solid #cbd5e1;
            border-radius: 8px;
            padding: 4px;
            background: #fff;
            margin-bottom: 8px;
        }

        .qrcode-item span {
            font-size: 12px;
            color: var(--text-muted);
            display: block;
        }

        /* 友情链接与页脚 */
        footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 60px 0 30px 0;
            font-size: 14px;
            border-top: 1px solid #1e293b;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand p {
            margin-top: 15px;
            font-size: 13px;
        }

        .footer-links h5 {
            color: #fff;
            font-size: 15px;
            margin-bottom: 20px;
        }

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

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

        .footer-links ul li a {
            color: #94a3b8;
            text-decoration: none;
            transition: color 0.2s;
        }

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

        .friendly-links-sec {
            border-top: 1px solid #1e293b;
            padding-top: 20px;
            margin-top: 20px;
        }

        .friendly-links-title {
            font-size: 13px;
            color: #64748b;
            margin-bottom: 10px;
            font-weight: 600;
        }

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

        .friendly-links-wrap a {
            color: #64748b;
            text-decoration: none;
            font-size: 13px;
            transition: color 0.2s;
        }

        .friendly-links-wrap a:hover {
            color: #3b82f6;
        }

        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

        .copyright {
            font-size: 12px;
        }

        /* 浮动客服 */
        .float-contact {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: #fff;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-dark);
            text-decoration: none;
            transition: all 0.3s;
            position: relative;
            border: 1px solid #e2e8f0;
        }

        .float-btn:hover {
            transform: scale(1.1);
            background: var(--laser-active);
            color: #fff;
        }

        .float-btn .tooltip {
            position: absolute;
            right: 60px;
            background: #fff;
            color: var(--text-dark);
            padding: 8px 12px;
            border-radius: 6px;
            font-size: 12px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            white-space: nowrap;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s;
            border: 1px solid #e2e8f0;
        }

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

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .services-grid, .solutions-grid, .reviews-grid, .articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .tech-standards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            header {
                height: 60px;
            }
            nav {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
                border-top: 1px solid #e2e8f0;
                align-items: center;
            }
            nav.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .hero {
                padding: 100px 0 50px 0;
            }
            .hero h1 {
                font-size: 28px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .intro-grid, .network-layout, .interactive-grid, .training-grid, .faq-grid, .knowledge-grid, .contact-layout {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .services-grid, .solutions-grid, .reviews-grid, .articles-grid, .cases-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .workflow-timeline::before {
                left: 20px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 50px;
                padding-right: 0;
                text-align: left !important;
            }
            .timeline-item:nth-child(even) {
                left: 0;
            }
            .timeline-dot {
                left: 12px !important;
                right: auto !important;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }