:root {
            --primary: #e60012; /* 艳红 */
            --primary-dark: #a8000a;
            --primary-light: #fff0f1;
            --accent: #ffc107; /* 金黄 */
            --neutral-dark: #1e1e24;
            --neutral-light: #f8f9fa;
            --text-main: #333333;
            --text-muted: #666666;
            --border-color: #e9ecef;
            --container-width: 1200px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* 基础重置 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans CJK SC", sans-serif;
            color: var(--text-main);
            background-color: #ffffff;
            line-height: 1.6;
            overflow-x: hidden;
            scroll-behavior: smooth;
        }

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

        .section-padding {
            padding: 80px 0;
        }

        .bg-light {
            background-color: var(--neutral-light);
        }

        /* 统一标题 */
        .section-title {
            text-align: center;
            margin-bottom: 50px;
            position: relative;
        }
        .section-title h2 {
            font-size: 2.2rem;
            color: var(--neutral-dark);
            margin-bottom: 15px;
            font-weight: 700;
        }
        .section-title h2 span {
            color: var(--primary);
        }
        .section-title::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--primary);
            margin: 0 auto;
            border-radius: 2px;
        }

        /* 按钮样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 30px;
            border-radius: 30px;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #ffffff;
        }
        .btn-primary:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(230, 0, 18, 0.2);
        }
        .btn-accent {
            background-color: var(--accent);
            color: var(--neutral-dark);
        }
        .btn-accent:hover {
            background-color: #e0a800;
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(255, 193, 7, 0.3);
        }
        .btn-outline {
            background-color: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            background-color: var(--primary);
            color: #ffffff;
            transform: translateY(-2px);
        }

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background-color: rgba(255, 255, 255, 0.95);
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            z-index: 1000;
            transition: var(--transition);
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 80px;
        }
        .logo-area {
            display: flex;
            align-items: center;
        }
        .ai-page-logo {
            height: 50px;
            object-fit: contain;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 20px;
            align-items: center;
        }
        .nav-links a {
            text-decoration: none;
            color: var(--text-main);
            font-weight: 500;
            transition: var(--transition);
            font-size: 0.95rem;
        }
        .nav-links a:hover {
            color: var(--primary);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 6px;
        }
        .nav-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--text-main);
            transition: var(--transition);
        }

        /* 首屏 Hero (无图，艳红科技科技感) */
        .hero {
            padding-top: 160px;
            padding-bottom: 100px;
            background: linear-gradient(135deg, #7a0006 0%, #d60010 50%, #ff4d5a 100%);
            color: #ffffff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle, transparent 20%, rgba(0,0,0,0.4) 80%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
            margin: 0 auto;
        }
        .hero-badge {
            display: inline-block;
            background-color: rgba(255,255,255,0.2);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            margin-bottom: 25px;
            backdrop-filter: blur(5px);
            border: 1px solid rgba(255,255,255,0.3);
        }
        .hero h1 {
            font-size: 3rem;
            line-height: 1.25;
            margin-bottom: 25px;
            font-weight: 800;
            text-shadow: 0 2px 10px rgba(0,0,0,0.2);
        }
        .hero h1 span {
            color: var(--accent);
        }
        .hero p {
            font-size: 1.2rem;
            margin-bottom: 40px;
            opacity: 0.9;
        }
        .hero-btn-group {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        /* 关于我们与平台介绍 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .about-text h3 {
            font-size: 1.8rem;
            color: var(--neutral-dark);
            margin-bottom: 20px;
        }
        .about-text p {
            margin-bottom: 15px;
            color: var(--text-muted);
        }
        .about-features {
            list-style: none;
            margin-top: 25px;
        }
        .about-features li {
            position: relative;
            padding-left: 25px;
            margin-bottom: 12px;
            font-weight: 500;
        }
        .about-features li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: bold;
        }
        .about-intro-box {
            background-color: var(--primary-light);
            border-left: 5px solid var(--primary);
            padding: 30px;
            border-radius: 0 12px 12px 0;
        }

        /* 数据指标 */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-top: 50px;
        }
        .stat-card {
            background: #ffffff;
            padding: 30px 20px;
            border-radius: 12px;
            text-align: center;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            border-top: 3px solid var(--primary);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 5px;
        }
        .stat-label {
            font-size: 0.95rem;
            color: var(--text-muted);
        }

        /* AIGC 服务与模型 */
        .model-scroller {
            overflow: hidden;
            padding: 20px 0;
            background-color: var(--neutral-dark);
            color: #ffffff;
            white-space: nowrap;
            position: relative;
        }
        .model-track {
            display: inline-flex;
            gap: 40px;
            animation: scroll 30s linear infinite;
        }
        .model-item {
            font-size: 1.1rem;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.1);
            padding: 8px 20px;
            border-radius: 20px;
            border: 1px solid rgba(255,255,255,0.2);
        }
        @keyframes scroll {
            0% { transform: translateX(0); }
            100% { transform: translateX(-50%); }
        }

        /* AIGC 服务与制作能力 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .service-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 40px 30px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.08);
            border-color: var(--primary);
        }
        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: var(--transition);
        }
        .service-card:hover::before {
            transform: scaleX(1);
        }
        .service-icon {
            font-size: 2.5rem;
            margin-bottom: 20px;
        }
        .service-card h3 {
            font-size: 1.3rem;
            margin-bottom: 15px;
            color: var(--neutral-dark);
        }
        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* 一站式AIGC制作与素材图展示 */
        .production-box {
            background: #ffffff;
            border-radius: 20px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.05);
            padding: 50px;
            margin-top: 40px;
        }
        .production-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
            align-items: center;
        }
        .media-showcase {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .media-wrap {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .media-wrap img {
            width: 100%;
            display: block;
            object-fit: cover;
            transition: var(--transition);
        }
        .media-wrap img:hover {
            transform: scale(1.05);
        }
        .production-content h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--neutral-dark);
        }
        .production-content p {
            margin-bottom: 20px;
            color: var(--text-muted);
        }

        /* 解决方案 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .solution-item {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 25px;
            border-radius: 10px;
            text-align: center;
            transition: var(--transition);
        }
        .solution-item:hover {
            background-color: var(--primary-light);
            border-color: var(--primary);
            transform: translateY(-3px);
        }
        .solution-item h4 {
            font-size: 1.1rem;
            margin-bottom: 10px;
            color: var(--neutral-dark);
        }
        .solution-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 服务网络与流程 */
        .network-section {
            background: linear-gradient(rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.9));
            position: relative;
        }
        .network-map {
            text-align: center;
            margin-top: 30px;
            padding: 40px;
            background: var(--neutral-light);
            border-radius: 15px;
            border: 1px dashed var(--primary);
        }
        .network-dots {
            display: flex;
            justify-content: center;
            gap: 30px;
            flex-wrap: wrap;
            margin-top: 20px;
        }
        .network-dot {
            background: #ffffff;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            box-shadow: 0 2px 8px rgba(0,0,0,0.05);
            border: 1px solid var(--border-color);
        }

        /* 标准化流程 & 技术标准 */
        .steps-container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
            position: relative;
        }
        .step-card {
            background: #ffffff;
            padding: 30px 20px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.03);
            text-align: center;
            position: relative;
            z-index: 2;
        }
        .step-num {
            width: 45px;
            height: 45px;
            background: var(--primary);
            color: #ffffff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px auto;
            font-weight: 700;
            font-size: 1.1rem;
        }
        .step-card h4 {
            font-size: 1.15rem;
            margin-bottom: 10px;
        }
        .step-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 技术标准表格 */
        .tech-standards {
            width: 100%;
            border-collapse: collapse;
            margin-top: 30px;
            background: #ffffff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.03);
        }
        .tech-standards th, .tech-standards td {
            padding: 15px 25px;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }
        .tech-standards th {
            background-color: var(--primary);
            color: #ffffff;
            font-weight: 600;
        }
        .tech-standards tr:last-child td {
            border-bottom: none;
        }

        /* 案例展示 */
        .case-gallery {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .case-card {
            background: #ffffff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: var(--transition);
        }
        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .case-img-container {
            height: 220px;
            overflow: hidden;
            position: relative;
        }
        .case-img-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .case-info {
            padding: 25px;
        }
        .case-info h4 {
            font-size: 1.2rem;
            margin-bottom: 10px;
            color: var(--neutral-dark);
        }
        .case-info p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 15px;
        }
        .case-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: 500;
        }

        /* 对比评测 */
        .evaluation-box {
            background: #ffffff;
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            padding: 50px 40px;
            margin-top: 40px;
        }
        .eval-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-bottom: 2px solid var(--border-color);
            padding-bottom: 30px;
            margin-bottom: 30px;
            flex-wrap: wrap;
            gap: 20px;
        }
        .eval-score {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        .score-num {
            font-size: 3.5rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
        }
        .score-meta h4 {
            font-size: 1.3rem;
            color: var(--neutral-dark);
        }
        .score-stars {
            color: var(--accent);
            font-size: 1.2rem;
        }
        .eval-table-wrap {
            overflow-x: auto;
        }
        .eval-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
        }
        .eval-table th, .eval-table td {
            padding: 18px 20px;
            text-align: center;
            border-bottom: 1px solid var(--border-color);
        }
        .eval-table th {
            background-color: var(--neutral-light);
            font-weight: 600;
            color: var(--neutral-dark);
        }
        .eval-table td:first-child, .eval-table th:first-child {
            text-align: left;
            font-weight: 600;
        }
        .eval-table tr.highlight td {
            background-color: var(--primary-light);
            font-weight: 600;
        }
        .badge-good {
            color: var(--primary);
            font-weight: 700;
        }

        /* Token 比价 */
        .token-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .token-card {
            background: #ffffff;
            border: 2px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            text-align: center;
            position: relative;
        }
        .token-card.best {
            border-color: var(--primary);
            box-shadow: 0 10px 25px rgba(230,0,18,0.05);
        }
        .token-card.best::after {
            content: "全网低价";
            position: absolute;
            top: -15px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--primary);
            color: #ffffff;
            padding: 4px 15px;
            font-size: 0.8rem;
            border-radius: 20px;
            font-weight: 600;
        }
        .token-price {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--neutral-dark);
            margin: 20px 0;
        }
        .token-price span {
            font-size: 1rem;
            color: var(--text-muted);
        }
        .token-features {
            list-style: none;
            margin: 20px 0;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            text-align: left;
        }
        .token-features li {
            margin-bottom: 10px;
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 培训业务 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }
        .training-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 25px 20px;
            border-radius: 12px;
            text-align: center;
            transition: var(--transition);
        }
        .training-card:hover {
            border-color: var(--primary);
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.05);
        }
        .training-card h4 {
            font-size: 1.05rem;
            color: var(--neutral-dark);
            margin-bottom: 12px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .training-cert {
            font-size: 0.8rem;
            color: var(--primary);
            background: var(--primary-light);
            padding: 3px 8px;
            border-radius: 4px;
            display: inline-block;
        }

        /* FAQ折叠面板 */
        .faq-container {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            margin-bottom: 15px;
            overflow: hidden;
        }
        .faq-question {
            padding: 20px 25px;
            font-weight: 600;
            color: var(--neutral-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: var(--transition);
        }
        .faq-question:hover {
            background-color: var(--primary-light);
        }
        .faq-answer {
            padding: 0 25px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            color: var(--text-muted);
            border-top: 0 solid var(--border-color);
            font-size: 0.95rem;
        }
        .faq-item.active .faq-answer {
            padding: 20px 25px;
            max-height: 200px;
            border-top: 1px solid var(--border-color);
        }
        .faq-icon::after {
            content: '+';
            font-size: 1.3rem;
            font-weight: bold;
        }
        .faq-item.active .faq-icon::after {
            content: '-';
        }

        /* 常见问题排查与百科 */
        .help-panels {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        .help-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
        }
        .help-card h3 {
            font-size: 1.4rem;
            margin-bottom: 20px;
            color: var(--neutral-dark);
            border-left: 4px solid var(--primary);
            padding-left: 15px;
        }
        .help-list {
            list-style: none;
        }
        .help-list li {
            margin-bottom: 15px;
        }
        .help-list strong {
            display: block;
            font-size: 0.95rem;
            color: var(--neutral-dark);
        }
        .help-list span {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 用户评论 */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .comment-card {
            background: #ffffff;
            padding: 30px;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.03);
            border-bottom: 3px solid var(--border-color);
            transition: var(--transition);
        }
        .comment-card:hover {
            border-bottom-color: var(--primary);
            transform: translateY(-3px);
        }
        .comment-meta {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 15px;
        }
        .comment-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
        }
        .comment-user-info h4 {
            font-size: 1rem;
            color: var(--neutral-dark);
        }
        .comment-user-info span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .comment-content {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-style: italic;
        }

        /* 最新资讯 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }
        .news-card {
            background: #ffffff;
            border-radius: 8px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            padding: 20px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .news-card h4 {
            font-size: 0.95rem;
            margin-bottom: 15px;
            line-height: 1.4;
        }
        .news-card a {
            color: var(--primary);
            text-decoration: none;
            font-size: 0.85rem;
            font-weight: 600;
        }
        .news-card a:hover {
            text-decoration: underline;
        }

        /* 需求匹配与联系我们表单 */
        .contact-section-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
        }
        .contact-info-panel h3 {
            font-size: 1.8rem;
            margin-bottom: 25px;
        }
        .contact-info-item {
            margin-bottom: 20px;
        }
        .contact-info-item strong {
            display: block;
            color: var(--neutral-dark);
        }
        .contact-info-item span {
            color: var(--text-muted);
        }
        .qr-codes {
            display: flex;
            gap: 30px;
            margin-top: 30px;
            flex-wrap: wrap;
        }
        .qr-item {
            text-align: center;
        }
        .qr-item img {
            width: 140px;
            height: 140px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 5px;
            margin-bottom: 10px;
        }
        .qr-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .form-panel {
            background: #ffffff;
            padding: 40px;
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            color: var(--neutral-dark);
        }
        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(230,0,18,0.1);
        }
        textarea.form-control {
            resize: vertical;
            height: 120px;
        }

        /* 代理加盟 */
        .agency-box {
            background: linear-gradient(135deg, var(--neutral-dark) 0%, #2b303a 100%);
            color: #ffffff;
            border-radius: 16px;
            padding: 50px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .agency-box h3 {
            font-size: 2rem;
            margin-bottom: 20px;
            color: var(--accent);
        }
        .agency-box p {
            max-width: 700px;
            margin: 0 auto 30px auto;
            opacity: 0.9;
        }

        /* 页脚 */
        footer {
            background-color: var(--neutral-dark);
            color: #ffffff;
            padding: 60px 0 30px 0;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h4 {
            font-size: 1.3rem;
            color: #ffffff;
            margin-bottom: 15px;
        }
        .footer-brand p {
            color: #a0a0a0;
            line-height: 1.8;
            margin-bottom: 15px;
        }
        .footer-links h5 {
            font-size: 1.1rem;
            margin-bottom: 20px;
            color: #ffffff;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #a0a0a0;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-copyright {
            border-top: 1px solid #2e2e38;
            padding-top: 30px;
            text-align: center;
            color: #888888;
            font-size: 0.85rem;
        }
        .footer-copyright a {
            color: #888888;
            text-decoration: none;
            margin: 0 5px;
        }
        .footer-copyright a:hover {
            color: var(--primary);
        }

        /* 悬浮客服 */
        .floating-contact {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .float-btn {
            width: 55px;
            height: 55px;
            background-color: var(--primary);
            color: #ffffff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 5px 15px rgba(230,0,18,0.3);
            cursor: pointer;
            transition: var(--transition);
            font-size: 1.5rem;
            position: relative;
        }
        .float-btn:hover {
            transform: scale(1.1);
            background-color: var(--primary-dark);
        }
        .float-qr {
            position: absolute;
            bottom: 70px;
            right: 0;
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 5px 25px rgba(0,0,0,0.15);
            display: none;
            text-align: center;
        }
        .float-qr img {
            width: 120px;
            height: 120px;
        }
        .float-qr p {
            color: var(--text-main);
            font-size: 0.8rem;
            margin-top: 5px;
            white-space: nowrap;
        }
        .float-btn:hover .float-qr {
            display: block;
        }

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .service-grid, .case-gallery, .comments-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .news-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 80px;
                left: 0;
                right: 0;
                background-color: #ffffff;
                padding: 20px;
                box-shadow: 0 5px 10px rgba(0,0,0,0.1);
                border-top: 1px solid var(--border-color);
            }
            .nav-links.active {
                display: flex;
            }
            .nav-toggle {
                display: flex;
            }
            .about-grid, .production-grid, .contact-section-grid, .help-panels {
                grid-template-columns: 1fr;
            }
            .steps-container {
                grid-template-columns: repeat(2, 1fr);
            }
            .solutions-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .token-grid {
                grid-template-columns: 1fr;
            }
            .training-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 480px) {
            .service-grid, .case-gallery, .comments-grid, .steps-container, .solutions-grid, .training-grid, .news-grid {
                grid-template-columns: 1fr;
            }
            .stats-row {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
        }