:root {
            --primary: #0052ff;
            --primary-glow: rgba(0, 82, 255, 0.15);
            --accent-pink: #ff007a;
            --accent-purple: #7928ca;
            --text-main: #111827;
            --text-muted: #4b5563;
            --bg-light: #f9fafb;
            --bg-card: #ffffff;
            --border-color: #e5e7eb;
            --gradient-accent: linear-gradient(135deg, #0052ff 0%, #7928ca 50%, #ff007a 100%);
            --gradient-soft: linear-gradient(135deg, #f0f4ff 0%, #faf5ff 100%);
            --container-width: 1200px;
        }

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

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

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

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

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

        section {
            padding: 80px 0;
            position: relative;
            border-bottom: 1px solid var(--border-color);
        }

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

        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            background: var(--gradient-accent);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            display: inline-block;
            margin-bottom: 15px;
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 1.1rem;
            max-width: 700px;
            margin: 0 auto;
        }

        /* 顶部导航 */
        header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            padding: 15px 0;
        }

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

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

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

        .brand-text {
            font-size: 1.3rem;
            font-weight: 800;
            background: var(--gradient-accent);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        .nav-menu a {
            color: var(--text-main);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 5px 10px;
            border-radius: 6px;
        }

        .nav-menu a:hover {
            background-color: var(--bg-light);
            color: var(--primary);
        }

        .nav-btn {
            background: var(--gradient-accent);
            color: #ffffff !important;
            padding: 8px 18px !important;
            border-radius: 50px;
            font-weight: 600 !important;
            box-shadow: 0 4px 15px rgba(121, 40, 202, 0.2);
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(121, 40, 202, 0.3);
        }

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

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

        /* Hero首屏 - 无图片高饱和设计 */
        .hero {
            background: radial-gradient(circle at 10% 20%, rgba(240, 244, 255, 0.8) 0%, rgba(250, 245, 255, 0.8) 90%);
            padding: 100px 0 120px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -20%;
            left: -10%;
            width: 50%;
            height: 60%;
            background: radial-gradient(circle, rgba(0, 82, 255, 0.1) 0%, transparent 70%);
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            right: -10%;
            width: 50%;
            height: 60%;
            background: radial-gradient(circle, rgba(255, 0, 122, 0.08) 0%, transparent 70%);
            z-index: 1;
        }

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

        .hero-tag {
            display: inline-block;
            background: var(--gradient-accent);
            padding: 1px;
            border-radius: 50px;
            margin-bottom: 25px;
        }

        .hero-tag-inner {
            background: #ffffff;
            color: var(--primary);
            padding: 6px 20px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .hero-tag-inner span::before {
            content: '●';
            color: var(--accent-pink);
            animation: pulse 1.5s infinite;
        }

        @keyframes pulse {
            0% { opacity: 0.3; }
            50% { opacity: 1; }
            100% { opacity: 0.3; }
        }

        .hero h1 {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.25;
            letter-spacing: -1px;
            margin-bottom: 25px;
            color: var(--text-main);
        }

        .hero h1 span {
            background: var(--gradient-accent);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 1.25rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            max-width: 750px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-cta {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-bottom: 60px;
        }

        .btn-primary {
            background: var(--gradient-accent);
            color: #ffffff;
            font-weight: 600;
            padding: 15px 35px;
            border-radius: 8px;
            box-shadow: 0 10px 25px rgba(0, 82, 255, 0.25);
            transition: all 0.3s;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(0, 82, 255, 0.4);
            color: #ffffff;
        }

        .btn-secondary {
            background: #ffffff;
            color: var(--text-main);
            border: 1px solid var(--border-color);
            font-weight: 600;
            padding: 15px 35px;
            border-radius: 8px;
            transition: all 0.3s;
        }

        .btn-secondary:hover {
            background: var(--bg-light);
            border-color: var(--text-muted);
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 30px;
        }

        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 25px 20px;
            text-align: center;
            box-shadow: 0 4px 6px rgba(0,0,0,0.02);
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.05);
            border-color: var(--primary);
        }

        .stat-num {
            font-size: 2.2rem;
            font-weight: 800;
            background: var(--gradient-accent);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 600;
        }

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

        .about-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--text-main);
        }

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

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

        .features-list li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 12px;
            font-weight: 600;
            color: var(--text-main);
        }

        .features-list li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--accent-pink);
            font-weight: 900;
            font-size: 1.1rem;
        }

        .about-graphics {
            background: var(--gradient-soft);
            border-radius: 20px;
            padding: 40px;
            border: 1px solid var(--border-color);
            position: relative;
        }

        .tech-badge-container {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 15px;
        }

        .tech-badge {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 30px;
            padding: 6px 14px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-muted);
            box-shadow: 0 2px 4px rgba(0,0,0,0.02);
        }

        .tech-badge.highlight {
            border-color: var(--primary);
            color: var(--primary);
        }

        /* 全平台AIGC服务体系 & 支持平台 */
        .service-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: 16px;
            padding: 35px 30px;
            transition: all 0.3s;
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 30px rgba(0, 82, 255, 0.1);
            border-color: var(--primary);
        }

        .service-icon {
            width: 50px;
            height: 50px;
            background: var(--gradient-soft);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 25px;
            color: var(--primary);
            font-size: 1.5rem;
            font-weight: bold;
        }

        .service-card h3 {
            font-size: 1.3rem;
            margin-bottom: 15px;
        }

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

        .model-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .model-tag {
            font-size: 0.75rem;
            background: var(--bg-light);
            padding: 3px 8px;
            border-radius: 4px;
            color: var(--text-muted);
        }

        .model-showcase {
            margin-top: 50px;
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
        }

        .model-showcase h4 {
            font-size: 1.1rem;
            margin-bottom: 20px;
            text-align: center;
            color: var(--text-muted);
        }

        .model-list-flex {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .model-pill {
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            padding: 6px 15px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-main);
            transition: all 0.2s;
        }

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

        /* 制作流程 & 标准服务 */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            width: 2px;
            height: 100%;
            background: var(--border-color);
            transform: translateX(-50%);
        }

        .timeline-item {
            position: relative;
            margin-bottom: 50px;
            width: 50%;
            padding: 0 40px;
        }

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

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

        .timeline-badge {
            position: absolute;
            top: 0;
            width: 40px;
            height: 40px;
            background: var(--gradient-accent);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #ffffff;
            font-weight: bold;
            z-index: 10;
        }

        .timeline-item:nth-child(odd) .timeline-badge {
            right: -20px;
        }

        .timeline-item:nth-child(even) .timeline-badge {
            left: -20px;
        }

        .timeline-content {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 25px;
            border-radius: 12px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.02);
        }

        .timeline-content h3 {
            font-size: 1.2rem;
            margin-bottom: 10px;
            color: var(--primary);
        }

        .timeline-content p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* 全行业解决方案 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .solution-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 25px;
            transition: all 0.3s;
        }

        .solution-card:hover {
            border-color: var(--accent-purple);
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(121, 40, 202, 0.05);
        }

        .solution-card h3 {
            font-size: 1.15rem;
            margin-bottom: 12px;
            color: var(--text-main);
            border-left: 3px solid var(--accent-pink);
            padding-left: 10px;
        }

        .solution-card p {
            color: var(--text-muted);
            font-size: 0.88rem;
        }

        /* 客户案例中心 & 宣传图展示 */
        .case-gallery {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin-bottom: 50px;
        }

        .case-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 4px 6px rgba(0,0,0,0.02);
            transition: all 0.3s;
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.08);
        }

        .case-img-holder {
            width: 100%;
            height: 200px;
            background: #eef2f6;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .case-img-holder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .case-body {
            padding: 20px;
        }

        .case-tag {
            display: inline-block;
            background: var(--primary-glow);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 4px;
            margin-bottom: 10px;
        }

        .case-body h3 {
            font-size: 1.1rem;
            margin-bottom: 10px;
        }

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

        .banner-showcase {
            background: var(--gradient-soft);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 40px;
            text-align: center;
        }

        .banner-title {
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 25px;
            color: var(--text-main);
        }

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

        .banner-flex img {
            border-radius: 8px;
            box-shadow: 0 8px 16px rgba(0,0,0,0.06);
            max-width: 48%;
            height: auto;
        }

        /* 对比评测 & Token比价 */
        .compare-section {
            background: #ffffff;
        }

        .score-box {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 30px;
            background: var(--gradient-soft);
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: 16px;
            margin-bottom: 40px;
        }

        .score-num-wrapper {
            text-align: center;
        }

        .score-num {
            font-size: 4rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1;
        }

        .score-max {
            font-size: 1.2rem;
            color: var(--text-muted);
        }

        .score-stars {
            color: #ff9900;
            font-size: 1.5rem;
            margin-top: 5px;
        }

        .score-desc {
            max-width: 500px;
            font-size: 0.95rem;
            color: var(--text-muted);
        }

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

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            font-size: 0.9rem;
        }

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

        .compare-table th {
            background: var(--bg-light);
            font-weight: 700;
            color: var(--text-main);
        }

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

        .highlight-row {
            background: rgba(0, 82, 255, 0.02);
            font-weight: 600;
        }

        .tag-yes {
            color: #10b981;
            font-weight: bold;
        }

        .tag-no {
            color: #ef4444;
        }

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

        .training-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 20px 15px;
            text-align: center;
            transition: all 0.3s;
        }

        .training-card:hover {
            border-color: var(--accent-pink);
            background: var(--gradient-soft);
            transform: translateY(-3px);
        }

        .training-card h3 {
            font-size: 1rem;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .training-card p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 服务网络 */
        .network-box {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 40px;
            text-align: center;
        }

        .network-map-placeholder {
            max-width: 600px;
            margin: 30px auto 0;
            padding: 30px;
            border: 2px dashed var(--border-color);
            border-radius: 12px;
            background: var(--bg-light);
        }

        .network-cities {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 15px;
            margin-top: 20px;
        }

        .city-tag {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 5px 15px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 500;
        }

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

        .review-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.01);
            position: relative;
        }

        .review-card::before {
            content: "“";
            position: absolute;
            top: 20px;
            left: 20px;
            font-size: 4rem;
            color: rgba(0, 82, 255, 0.08);
            line-height: 1;
            font-family: Georgia, serif;
        }

        .review-text {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 20px;
            position: relative;
            z-index: 2;
        }

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

        .user-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--gradient-accent);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
        }

        .user-info h4 {
            font-size: 0.9rem;
            color: var(--text-main);
        }

        .user-info p {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* 需求匹配与联系我们 */
        .contact-section {
            background: var(--gradient-soft);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 50px;
        }

        .form-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 40px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.03);
        }

        .form-card h3 {
            font-size: 1.5rem;
            margin-bottom: 25px;
            color: var(--text-main);
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 20px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .form-group.full-width {
            grid-column: span 2;
        }

        .form-label {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-main);
        }

        .form-control {
            border: 1px solid var(--border-color);
            padding: 12px 15px;
            border-radius: 6px;
            font-size: 0.9rem;
            outline: none;
            transition: border-color 0.3s;
        }

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

        .btn-submit {
            background: var(--gradient-accent);
            color: #ffffff;
            border: none;
            padding: 15px;
            border-radius: 6px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s;
        }

        .btn-submit:hover {
            box-shadow: 0 8px 20px rgba(0, 82, 255, 0.3);
            transform: translateY(-2px);
        }

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

        .info-block {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 25px;
        }

        .info-block h3 {
            font-size: 1.1rem;
            margin-bottom: 15px;
            color: var(--text-main);
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 10px;
        }

        .qr-area {
            display: flex;
            gap: 15px;
            align-items: center;
        }

        .qr-code {
            width: 100px;
            height: 100px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 5px;
            background: #fff;
        }

        .qr-code img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .qr-text p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 4px;
        }

        .meta-list {
            list-style: none;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .meta-list li {
            margin-bottom: 10px;
            display: flex;
            justify-content: space-between;
        }

        .meta-list li strong {
            color: var(--text-main);
        }

        /* FAQ折叠面板 */
        .faq-grid {
            max-width: 850px;
            margin: 0 auto;
        }

        .faq-item {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color 0.3s;
        }

        .faq-item:hover {
            border-color: var(--primary);
        }

        .faq-trigger {
            width: 100%;
            background: none;
            border: none;
            padding: 20px;
            text-align: left;
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-icon {
            font-size: 1.2rem;
            transition: transform 0.3s;
            color: var(--text-muted);
        }

        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: var(--bg-light);
        }

        .faq-content-inner {
            padding: 20px;
            font-size: 0.9rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
        }

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

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

        /* 自助排查 & 术语百科 */
        .troubleshoot-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .troubleshoot-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 25px;
        }

        .troubleshoot-card h3 {
            font-size: 1.15rem;
            margin-bottom: 15px;
            color: var(--primary);
        }

        .troubleshoot-steps {
            list-style-type: decimal;
            padding-left: 20px;
            font-size: 0.88rem;
            color: var(--text-muted);
        }

        .troubleshoot-steps li {
            margin-bottom: 10px;
        }

        .wiki-terms {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 15px;
            margin-top: 15px;
        }

        .wiki-term {
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            padding: 12px;
            border-radius: 8px;
        }

        .wiki-term strong {
            display: block;
            font-size: 0.85rem;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .wiki-term p {
            font-size: 0.75rem;
            color: var(--text-muted);
            line-height: 1.4;
        }

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

        .article-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 25px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: all 0.3s;
        }

        .article-card:hover {
            border-color: var(--accent-purple);
            box-shadow: 0 8px 16px rgba(0,0,0,0.03);
        }

        .article-card h3 {
            font-size: 1rem;
            margin-bottom: 15px;
            line-height: 1.4;
        }

        .article-card h3 a {
            color: var(--text-main);
        }

        .article-card h3 a:hover {
            color: var(--primary);
        }

        .article-meta {
            font-size: 0.75rem;
            color: var(--text-muted);
            display: flex;
            justify-content: space-between;
            border-top: 1px solid var(--border-color);
            padding-top: 12px;
        }

        /* 页脚 */
        footer {
            background: #111827;
            color: #9ca3af;
            padding: 60px 0 30px;
            font-size: 0.85rem;
            border-top: none;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1.5fr;
            gap: 50px;
            margin-bottom: 40px;
        }

        .footer-logo-area {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .footer-logo-area p {
            line-height: 1.6;
        }

        .footer-links-title {
            color: #ffffff;
            font-weight: 700;
            margin-bottom: 15px;
            font-size: 0.95rem;
        }

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

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

        .footer-links a {
            color: #9ca3af;
        }

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

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 15px;
        }

        .friend-links a {
            color: #9ca3af;
            background: #1f2937;
            padding: 4px 10px;
            border-radius: 4px;
        }

        .friend-links a:hover {
            background: var(--primary);
            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: 15px;
        }

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

        .float-btn {
            width: 50px;
            height: 50px;
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            cursor: pointer;
            transition: all 0.3s;
            position: relative;
        }

        .float-btn:hover {
            transform: scale(1.05);
            background: var(--gradient-accent);
            color: #ffffff;
        }

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

        .float-qr-box {
            position: absolute;
            right: 65px;
            bottom: 0;
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: 12px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.15);
            display: none;
            width: 150px;
            text-align: center;
        }

        .float-qr-box img {
            width: 100%;
            height: auto;
            border-radius: 4px;
        }

        .float-qr-box p {
            font-size: 0.75rem;
            color: var(--text-main);
            margin-top: 5px;
            font-weight: 700;
        }

        .float-btn:hover .float-qr-box {
            display: block;
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .service-grid, .case-gallery, .reviews-grid, .articles-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid, .solutions-grid, .training-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #ffffff;
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .about-grid, .contact-grid, .troubleshoot-grid {
                grid-template-columns: 1fr;
            }
            .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-badge {
                left: 0 !important;
                right: auto !important;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .banner-flex img {
                max-width: 100%;
            }
        }

        @media (max-width: 480px) {
            .service-grid, .case-gallery, .reviews-grid, .articles-list, .stats-grid, .solutions-grid, .training-grid, .wiki-terms {
                grid-template-columns: 1fr;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .form-group.full-width {
                grid-column: span 1;
            }
        }