:root {
            --bg-color: #060214;
            --panel-bg: #11092c;
            --primary: #ff2a74;
            --secondary: #8a2be2;
            --accent: #00f6ff;
            --text-main: #f0eff5;
            --text-muted: #a59fb6;
            --border-color: rgba(255, 42, 116, 0.2);
            --border-hover: rgba(0, 246, 255, 0.5);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --container-width: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-color);
            color: var(--text-main);
        }

        body {
            line-height: 1.6;
            overflow-x: hidden;
            background-image: radial-gradient(circle at 50% 0%, rgba(138, 43, 226, 0.15) 0%, transparent 50%),
                              radial-gradient(circle at 10% 40%, rgba(255, 42, 116, 0.08) 0%, transparent 40%),
                              radial-gradient(circle at 90% 80%, rgba(0, 246, 255, 0.08) 0%, transparent 40%);
            background-attachment: fixed;
        }

        /* 重置基础元素样式 */
        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        button, input, select, textarea {
            font-family: inherit;
            background: none;
            border: none;
            outline: none;
        }

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

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

        .section-title {
            text-align: center;
            margin-bottom: 50px;
            position: relative;
        }
        .section-title h2 {
            font-size: 2rem;
            color: #fff;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 10px;
            background: linear-gradient(135deg, #fff 30%, var(--accent) 70%, var(--primary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .section-title p {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 600px;
            margin: 0 auto;
        }

        /* 导航栏 */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(6, 2, 20, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            transition: var(--transition);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo-wrap img {
            height: 40px;
            width: auto;
        }
        .logo-text {
            font-size: 1.25rem;
            font-weight: 800;
            background: linear-gradient(to right, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: 1px;
        }
        .nav-menu {
            display: flex;
            gap: 20px;
            list-style: none;
        }
        .nav-link {
            color: var(--text-main);
            font-size: 0.9rem;
            font-weight: 500;
            position: relative;
            padding: 5px 0;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: var(--transition);
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .nav-btn {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            border: 1px solid rgba(255,255,255,0.1);
            cursor: pointer;
            box-shadow: 0 0 15px rgba(255, 42, 116, 0.3);
            transition: var(--transition);
        }
        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 25px rgba(255, 42, 116, 0.6);
        }
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
        }
        .menu-toggle span {
            width: 25px;
            height: 3px;
            background: var(--text-main);
            border-radius: 3px;
            transition: var(--transition);
        }

        /* Hero 首屏 (无图片) */
        .hero {
            padding-top: 150px;
            padding-bottom: 100px;
            text-align: center;
            position: relative;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 20%;
            left: 50%;
            transform: translate(-50%, -20%);
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255, 42, 116, 0.25) 0%, transparent 70%);
            filter: blur(40px);
            pointer-events: none;
            z-index: 1;
        }
        .hero-inner {
            position: relative;
            z-index: 2;
            max-width: 900px;
            margin: 0 auto;
        }
        .hero h1 {
            font-size: 2.8rem;
            line-height: 1.25;
            font-weight: 800;
            margin-bottom: 25px;
            background: linear-gradient(135deg, #fff 0%, #ecdcf7 40%, var(--accent) 70%, var(--primary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 0 40px rgba(138, 43, 226, 0.2);
        }
        .hero p.tagline {
            font-size: 1.15rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            line-height: 1.8;
        }
        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            padding: 15px 35px;
            border-radius: 5px;
            font-size: 1.05rem;
            font-weight: 600;
            box-shadow: 0 0 20px rgba(255, 42, 116, 0.4);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1px solid rgba(255,255,255,0.2);
            transition: var(--transition);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 0 30px rgba(255, 42, 116, 0.7);
            color: #fff;
        }
        .btn-secondary {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-color);
            color: var(--accent);
            padding: 15px 35px;
            border-radius: 5px;
            font-size: 1.05rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--accent);
            box-shadow: 0 0 20px rgba(0, 246, 255, 0.3);
        }
        .hero-banner-tags {
            margin-top: 50px;
            display: flex;
            justify-content: center;
            gap: 15px;
            flex-wrap: wrap;
        }
        .hero-tag {
            background: rgba(17, 9, 44, 0.6);
            border: 1px solid rgba(255, 255, 255, 0.08);
            padding: 8px 16px;
            border-radius: 4px;
            font-size: 0.85rem;
            color: var(--text-main);
        }

        /* 数据指标 */
        .stats {
            background: rgba(17, 9, 44, 0.5);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: 40px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            text-align: center;
        }
        .stat-item h3 {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--accent);
            margin-bottom: 5px;
            background: linear-gradient(135deg, var(--accent), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .stat-item p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* 关于我们 & 全国服务网络 & 代理加盟 */
        .grid-2col {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .about-text h3 {
            font-size: 1.75rem;
            margin-bottom: 20px;
            color: #fff;
        }
        .about-text p {
            color: var(--text-muted);
            margin-bottom: 20px;
            line-height: 1.8;
        }
        .about-features {
            list-style: none;
            margin-bottom: 30px;
        }
        .about-features li {
            position: relative;
            padding-left: 25px;
            margin-bottom: 12px;
            color: var(--text-main);
        }
        .about-features li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--accent);
            font-weight: bold;
        }
        .about-img-box {
            position: relative;
            border-radius: 8px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: 0 10px 30px rgba(0,0,0,0.5);
        }
        .about-img-box img {
            width: 100%;
            height: auto;
            display: block;
            filter: grayscale(10%) contrast(110%);
        }

        /* 全平台AIGC服务 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }
        .service-card {
            background: var(--panel-bg);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 30px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 100%;
            background: linear-gradient(to bottom, var(--primary), var(--secondary));
            opacity: 0;
            transition: var(--transition);
        }
        .service-card:hover {
            transform: translateY(-5px);
            border-color: var(--accent);
            box-shadow: 0 10px 25px rgba(0, 246, 255, 0.15);
        }
        .service-card:hover::before {
            opacity: 1;
        }
        .service-icon {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 20px;
        }
        .service-card h3 {
            font-size: 1.25rem;
            color: #fff;
            margin-bottom: 15px;
        }
        .service-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* 模型标签云 */
        .model-cloud-box {
            margin-top: 40px;
            background: rgba(17, 9, 44, 0.4);
            border: 1px dashed var(--border-color);
            padding: 30px;
            border-radius: 8px;
            text-align: center;
        }
        .model-cloud-box h4 {
            margin-bottom: 20px;
            font-size: 1.1rem;
            color: var(--accent);
        }
        .cloud-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }
        .cloud-tag {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--text-main);
            padding: 5px 12px;
            border-radius: 4px;
            font-size: 0.8rem;
            transition: var(--transition);
        }
        .cloud-tag:hover {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }

        /* 一站式AIGC制作 & 全行业解决方案 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 30px;
        }
        .solution-card {
            background: var(--panel-bg);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }
        .solution-card:hover {
            border-color: var(--accent);
            box-shadow: 0 10px 25px rgba(0, 246, 255, 0.1);
        }
        .solution-content {
            padding: 30px;
        }
        .solution-content h3 {
            font-size: 1.3rem;
            color: #fff;
            margin-bottom: 15px;
        }
        .solution-content p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 20px;
        }
        .solution-features {
            list-style: none;
        }
        .solution-features li {
            font-size: 0.85rem;
            color: var(--text-main);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .solution-features li::before {
            content: '●';
            color: var(--primary);
            font-size: 0.6rem;
        }

        /* 标准化AIGC流程 */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 25px;
            position: relative;
        }
        .step-card {
            background: var(--panel-bg);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 30px;
            text-align: center;
            position: relative;
            transition: var(--transition);
        }
        .step-card:hover {
            border-color: var(--accent);
        }
        .step-num {
            position: absolute;
            top: -15px;
            left: 50%;
            transform: translateX(-50%);
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            width: 35px;
            height: 35px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 0.95rem;
            box-shadow: 0 0 15px rgba(255, 42, 116, 0.4);
        }
        .step-card h3 {
            margin-top: 15px;
            margin-bottom: 12px;
            font-size: 1.15rem;
            color: #fff;
        }
        .step-card p {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        /* 技术标准 */
        .standards-box {
            background: rgba(17, 9, 44, 0.6);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 40px;
        }
        .standards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }
        .standard-item h4 {
            color: var(--accent);
            font-size: 1.1rem;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .standard-item p {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.7;
        }

        /* 对比评测 (核心要求) */
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            background: var(--panel-bg);
        }
        .eval-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 800px;
        }
        .eval-table th, .eval-table td {
            padding: 18px 24px;
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }
        .eval-table th {
            background: rgba(255, 42, 116, 0.1);
            color: #fff;
            font-weight: 600;
        }
        .eval-table tr:hover {
            background: rgba(255, 255, 255, 0.02);
        }
        .eval-table td strong {
            color: var(--accent);
        }
        .badge-star {
            display: inline-block;
            background: linear-gradient(135deg, #ff9800, #ff5722);
            color: #fff;
            padding: 3px 8px;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: bold;
        }
        .rating-box {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-top: 30px;
            background: rgba(255, 42, 116, 0.05);
            border: 1px solid rgba(255, 42, 116, 0.3);
            padding: 20px;
            border-radius: 8px;
            justify-content: center;
        }
        .rating-score {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
        }
        .rating-text {
            color: var(--text-main);
            font-size: 0.95rem;
        }

        /* 价格参考与Token比价 */
        .token-pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
        }
        .price-card {
            background: var(--panel-bg);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 30px;
            position: relative;
            text-align: center;
        }
        .price-card.featured {
            border-color: var(--accent);
            box-shadow: 0 0 25px rgba(0, 246, 255, 0.2);
        }
        .price-card.featured::after {
            content: '推荐';
            position: absolute;
            top: 15px;
            right: 15px;
            background: var(--accent);
            color: #000;
            padding: 2px 8px;
            font-size: 0.75rem;
            font-weight: bold;
            border-radius: 3px;
        }
        .price-card h3 {
            font-size: 1.25rem;
            color: #fff;
            margin-bottom: 15px;
        }
        .price-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            margin-bottom: 20px;
        }
        .price-num span {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: normal;
        }
        .price-features {
            list-style: none;
            text-align: left;
            margin-bottom: 30px;
        }
        .price-features li {
            padding: 8px 0;
            border-bottom: 1px solid rgba(255,255,255,0.05);
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .price-features li strong {
            color: var(--text-main);
        }

        /* 培训业务（工信部AI培训） */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }
        .training-card {
            background: rgba(17, 9, 44, 0.6);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 25px;
            text-align: center;
            transition: var(--transition);
        }
        .training-card:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
        }
        .training-card h3 {
            font-size: 1.1rem;
            color: #fff;
            margin-bottom: 10px;
        }
        .training-card p {
            color: var(--text-muted);
            font-size: 0.8rem;
        }
        .training-badge {
            display: inline-block;
            background: rgba(255, 42, 116, 0.15);
            color: var(--primary);
            padding: 2px 10px;
            border-radius: 20px;
            font-size: 0.75rem;
            margin-bottom: 15px;
            border: 1px solid rgba(255, 42, 116, 0.3);
        }

        /* 客户案例中心 & 宣传图 */
        .case-gallery {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        .case-item {
            background: var(--panel-bg);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            overflow: hidden;
        }
        .case-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-bottom: 1px solid var(--border-color);
        }
        .case-info {
            padding: 25px;
        }
        .case-info h3 {
            font-size: 1.15rem;
            color: #fff;
            margin-bottom: 10px;
        }
        .case-info p {
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .banner-row {
            display: flex;
            gap: 20px;
            margin-top: 40px;
            flex-wrap: wrap;
        }
        .banner-row img {
            flex: 1 1 300px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            object-fit: cover;
            max-height: 250px;
        }

        /* 客户评论卡片 */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
        }
        .comment-card {
            background: rgba(17, 9, 44, 0.7);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 30px;
            position: relative;
        }
        .comment-text {
            font-size: 0.9rem;
            color: var(--text-main);
            line-height: 1.7;
            margin-bottom: 20px;
            position: relative;
        }
        .comment-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .user-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: #fff;
        }
        .user-info h4 {
            font-size: 0.95rem;
            color: #fff;
        }
        .user-info p {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* 帮助中心 & 自助排查 & 百科 */
        .help-sections {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        .help-box {
            background: var(--panel-bg);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 30px;
        }
        .help-box h3 {
            font-size: 1.25rem;
            color: var(--accent);
            margin-bottom: 20px;
            border-bottom: 1px solid rgba(255,255,255,0.05);
            padding-bottom: 10px;
        }
        .help-list {
            list-style: none;
        }
        .help-list li {
            margin-bottom: 15px;
        }
        .help-list a {
            font-size: 0.9rem;
            color: var(--text-main);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .help-list a:hover {
            color: var(--accent);
        }
        .help-list span.badge {
            background: rgba(0, 246, 255, 0.1);
            color: var(--accent);
            font-size: 0.75rem;
            padding: 2px 8px;
            border-radius: 4px;
        }

        /* FAQ折叠面板 */
        .faq-list {
            max-width: 900px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--panel-bg);
            border: 1px solid var(--border-color);
            border-radius: 6px;
            margin-bottom: 15px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-header {
            padding: 20px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            color: #fff;
            user-select: none;
        }
        .faq-content {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: var(--transition);
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }
        .faq-item.active {
            border-color: var(--accent);
        }
        .faq-item.active .faq-content {
            padding: 0 20px 20px 20px;
            max-height: 200px;
        }
        .faq-icon::before {
            content: '+';
            font-size: 1.2rem;
            color: var(--accent);
        }
        .faq-item.active .faq-icon::before {
            content: '-';
        }

        /* 行业资讯 / 知识库 */
        .articles-list {
            max-width: 800px;
            margin: 0 auto;
            background: var(--panel-bg);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 30px;
        }
        .article-item {
            border-bottom: 1px solid rgba(255,255,255,0.05);
            padding: 15px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .article-item:last-child {
            border-bottom: none;
        }
        .article-item a {
            color: var(--text-main);
            font-weight: 500;
        }
        .article-item a:hover {
            color: var(--accent);
        }
        .article-date {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 智能需求匹配与表单 */
        .contact-section-inner {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 50px;
        }
        .form-card {
            background: var(--panel-bg);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 40px;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-size: 0.9rem;
            color: var(--text-main);
        }
        .form-control {
            width: 100%;
            background: rgba(6, 2, 20, 0.6);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: #fff;
            padding: 12px 15px;
            border-radius: 6px;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .form-control:focus {
            border-color: var(--accent);
            box-shadow: 0 0 10px rgba(0, 246, 255, 0.2);
        }
        select.form-control {
            color: #fff;
        }
        select.form-control option {
            background: var(--bg-color);
            color: #fff;
        }
        .contact-info-card {
            background: rgba(17, 9, 44, 0.6);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 40px;
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .contact-method h4 {
            color: var(--accent);
            margin-bottom: 10px;
            font-size: 1rem;
        }
        .contact-method p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .qr-codes {
            display: flex;
            gap: 20px;
            margin-top: 10px;
            flex-wrap: wrap;
        }
        .qr-item {
            text-align: center;
        }
        .qr-item img {
            width: 120px;
            height: 120px;
            border-radius: 6px;
            border: 2px solid var(--border-color);
            margin-bottom: 5px;
        }
        .qr-item p {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* 底部 */
        .footer {
            background: #04010a;
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px 0;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-col h4 {
            color: #fff;
            margin-bottom: 20px;
            font-size: 1rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: var(--text-muted);
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }
        .friend-links {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
        }
        .friend-links a {
            color: var(--text-muted);
        }
        .friend-links a:hover {
            color: var(--accent);
        }

        /* 侧边悬浮浮窗 */
        .float-tools {
            position: fixed;
            bottom: 40px;
            right: 30px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            z-index: 999;
        }
        .float-btn {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: bold;
            box-shadow: 0 4px 15px rgba(0,0,0,0.3);
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid rgba(255,255,255,0.1);
        }
        .float-btn:hover {
            transform: scale(1.1);
            box-shadow: 0 4px 25px rgba(255, 42, 116, 0.6);
        }
        .qr-popup {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: var(--panel-bg);
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.5);
            display: none;
            text-align: center;
        }
        .qr-popup img {
            width: 120px;
            height: 120px;
            display: block;
            margin-bottom: 5px;
        }
        .qr-popup p {
            font-size: 0.75rem;
            color: var(--text-main);
        }
        .float-btn-wrap:hover .qr-popup {
            display: block;
        }

        /* 移动端适配 */
        @media (max-width: 992px) {
            .grid-2col {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .contact-section-inner {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: var(--panel-bg);
                flex-direction: column;
                padding: 20px;
                gap: 15px;
                border-bottom: 1px solid var(--border-color);
                display: none;
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero-btns {
                flex-direction: column;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }