:root {
            --primary-gradient: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #db2777 100%);
            --accent-pink: #ec4899;
            --accent-purple: #8b5cf6;
            --accent-blue: #3b82f6;
            --text-dark: #0f172a;
            --text-muted: #475569;
            --bg-light: #f8fafc;
            --bg-white: #ffffff;
            --card-shadow: 0 10px 25px -5px rgba(79, 70, 229, 0.1), 0 8px 10px -6px rgba(79, 70, 229, 0.05);
            --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        /* 斑斓彩调风通用装饰背景 */
        .color-blob {
            position: absolute;
            border-radius: 50%;
            filter: blur(100px);
            z-index: -1;
            opacity: 0.15;
        }
        .blob-1 { top: 10%; left: 5%; width: 300px; height: 300px; background: var(--accent-pink); }
        .blob-2 { top: 30%; right: 5%; width: 400px; height: 400px; background: var(--accent-purple); }
        .blob-3 { bottom: 20%; left: 10%; width: 350px; height: 350px; background: var(--accent-blue); }

        /* 统一容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 导航栏 */
        header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
        }
        .nav-wrapper {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .ai-page-logo {
            height: 40px;
            width: auto;
            object-fit: contain;
        }
        .brand-name {
            font-size: 1.25rem;
            font-weight: 800;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .nav-menu {
            display: flex;
            gap: 20px;
            list-style: none;
            align-items: center;
        }
        .nav-link {
            text-decoration: none;
            color: var(--text-muted);
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition-smooth);
            position: relative;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--accent-purple);
        }
        .nav-btn {
            background: var(--primary-gradient);
            color: white;
            padding: 8px 18px;
            border-radius: 99px;
            font-weight: 600;
            font-size: 0.9rem;
            text-decoration: none;
            transition: var(--transition-smooth);
            box-shadow: 0 4px 12px rgba(124, 58, 237, 0.3);
        }
        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(124, 58, 237, 0.4);
        }
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
            border: none;
            background: none;
        }
        .menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--text-dark);
            transition: 0.3s;
        }

        /* 绝对禁止首屏有图片的Hero区域 */
        .hero-section {
            padding: 100px 0 80px;
            position: relative;
            background: radial-gradient(circle at 80% 20%, rgba(236, 72, 153, 0.08) 0%, rgba(139, 92, 246, 0.05) 50%, rgba(255, 255, 255, 0) 100%);
            text-align: center;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 99px;
            background: linear-gradient(90deg, rgba(79, 70, 229, 0.1), rgba(219, 39, 119, 0.1));
            color: var(--accent-purple);
            font-size: 0.85rem;
            font-weight: 700;
            margin-bottom: 24px;
            border: 1px solid rgba(139, 92, 246, 0.2);
        }
        .hero-title {
            font-size: clamp(2rem, 5vw, 3.5rem);
            line-height: 1.25;
            font-weight: 900;
            color: var(--text-dark);
            margin-bottom: 24px;
            letter-spacing: -0.5px;
        }
        .hero-title span {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 40px;
        }
        .hero-btns {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 60px;
        }
        .btn-primary {
            background: var(--primary-gradient);
            color: white;
            text-decoration: none;
            padding: 14px 32px;
            border-radius: 12px;
            font-weight: 700;
            font-size: 1.05rem;
            box-shadow: 0 8px 20px rgba(124, 58, 237, 0.35);
            transition: var(--transition-smooth);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 24px rgba(124, 58, 237, 0.45);
        }
        .btn-secondary {
            background: var(--bg-white);
            color: var(--text-dark);
            text-decoration: none;
            padding: 14px 32px;
            border-radius: 12px;
            font-weight: 700;
            font-size: 1.05rem;
            border: 1px solid rgba(226, 232, 240, 1);
            transition: var(--transition-smooth);
        }
        .btn-secondary:hover {
            background: var(--bg-light);
            border-color: rgba(139, 92, 246, 0.4);
        }

        /* 核心卖点数据指标卡片 - 仍在Hero首屏中，确保无图 */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
            margin-top: 40px;
        }
        .metric-card {
            background: var(--bg-white);
            padding: 24px;
            border-radius: 16px;
            box-shadow: var(--card-shadow);
            border: 1px solid rgba(226, 232, 240, 0.5);
            transition: var(--transition-smooth);
        }
        .metric-card:hover {
            transform: translateY(-5px);
            border-color: var(--accent-pink);
        }
        .metric-num {
            font-size: 2.25rem;
            font-weight: 800;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 8px;
        }
        .metric-label {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 4px;
        }
        .metric-sub {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 通用区块样式 */
        section {
            padding: 80px 0;
            position: relative;
        }
        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 50px;
        }
        .section-tag {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--accent-purple);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 12px;
            display: block;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 16px;
        }
        .section-title span {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
        }

        /* 平台介绍 */
        .intro-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .intro-content h3 {
            font-size: 1.75rem;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .intro-content p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .intro-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .intro-feat-item {
            background: var(--bg-white);
            padding: 16px;
            border-radius: 12px;
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.02);
        }
        .intro-feat-item h4 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--accent-purple);
        }
        .intro-feat-item p {
            font-size: 0.85rem;
            margin: 0;
        }
        .intro-media {
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--card-shadow);
            border: 4px solid var(--bg-white);
        }

        /* AIGC服务 & 一站式制作 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .service-card {
            background: var(--bg-white);
            padding: 32px;
            border-radius: 20px;
            box-shadow: var(--card-shadow);
            border: 1px solid rgba(226, 232, 240, 0.6);
            transition: var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .service-card::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; height: 4px;
            background: var(--primary-gradient);
            opacity: 0;
            transition: var(--transition-smooth);
        }
        .service-card:hover {
            transform: translateY(-5px);
        }
        .service-card:hover::before {
            opacity: 1;
        }
        .service-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(79, 70, 229, 0.1) 0%, rgba(219, 39, 119, 0.1) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-purple);
            margin-bottom: 24px;
        }
        .service-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .service-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* 模型聚合标签云 */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            max-width: 900px;
            margin: 40px auto 0;
        }
        .tag-item {
            padding: 6px 14px;
            border-radius: 99px;
            background: var(--bg-white);
            border: 1px solid rgba(226, 232, 240, 0.8);
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 600;
            transition: var(--transition-smooth);
        }
        .tag-item:hover {
            background: var(--primary-gradient);
            color: white;
            border-color: transparent;
            transform: scale(1.05);
        }

        /* 行业解决方案 */
        .solutions-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .solutions-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .sol-item {
            display: flex;
            gap: 16px;
            background: var(--bg-white);
            padding: 20px;
            border-radius: 16px;
            border-left: 4px solid var(--accent-blue);
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.02);
            transition: var(--transition-smooth);
        }
        .sol-item:hover {
            transform: translateX(5px);
            border-left-color: var(--accent-pink);
        }
        .sol-num {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-pink);
        }
        .sol-details h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .sol-details p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
        }
        .sol-image-container {
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--card-shadow);
        }
        .sol-image-container img {
            width: 100%;
            height: auto;
            display: block;
        }

        /* 标准化流程 & 时间线 */
        .timeline {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 24px;
            position: relative;
            margin-top: 40px;
        }
        .timeline-item {
            background: var(--bg-white);
            padding: 24px;
            border-radius: 16px;
            position: relative;
            border: 1px solid rgba(226, 232, 240, 0.8);
        }
        .timeline-step {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-gradient);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            margin-bottom: 16px;
        }
        .timeline-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .timeline-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* 对比评测表格 */
        .comparison-container {
            overflow-x: auto;
            background: var(--bg-white);
            border-radius: 20px;
            box-shadow: var(--card-shadow);
            border: 1px solid rgba(226, 232, 240, 0.8);
            margin-top: 40px;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 700px;
        }
        th, td {
            padding: 18px 24px;
            border-bottom: 1px solid rgba(226, 232, 240, 0.6);
            font-size: 0.95rem;
        }
        th {
            background-color: #faf5ff;
            font-weight: 700;
            color: var(--text-dark);
        }
        tr:last-child td {
            border-bottom: none;
        }
        .star-rating {
            color: #f59e0b;
            font-weight: bold;
            font-size: 1.1rem;
        }
        .badge-pro {
            background: linear-gradient(90deg, #ec4899, #8b5cf6);
            color: white;
            padding: 4px 10px;
            border-radius: 6px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        /* 价格卡片 / Token 比价 */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .price-card {
            background: var(--bg-white);
            border-radius: 20px;
            padding: 32px;
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: var(--card-shadow);
            display: flex;
            flex-direction: column;
            position: relative;
        }
        .price-card.popular {
            border: 2px solid var(--accent-purple);
        }
        .popular-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            background: var(--accent-pink);
            color: white;
            padding: 4px 12px;
            border-radius: 99px;
            font-size: 0.75rem;
            font-weight: 700;
        }
        .price-header h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .price-header p {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-bottom: 20px;
        }
        .price-amount {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 24px;
            display: flex;
            align-items: baseline;
        }
        .price-amount span {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        .price-features {
            list-style: none;
            margin-bottom: 30px;
            flex-grow: 1;
        }
        .price-features li {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .price-features li::before {
            content: "✓";
            color: var(--accent-purple);
            font-weight: bold;
        }

        /* 案例展示 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 24px;
        }
        .case-card {
            background: var(--bg-white);
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--card-shadow);
            border: 1px solid rgba(226, 232, 240, 0.8);
            transition: var(--transition-smooth);
        }
        .case-card:hover {
            transform: translateY(-5px);
        }
        .case-image {
            height: 220px;
            overflow: hidden;
            background: #e2e8f0;
            position: relative;
        }
        .case-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-smooth);
        }
        .case-card:hover .case-image img {
            transform: scale(1.05);
        }
        .case-body {
            padding: 24px;
        }
        .case-tag {
            font-size: 0.75rem;
            background: rgba(139, 92, 246, 0.1);
            color: var(--accent-purple);
            padding: 4px 8px;
            border-radius: 4px;
            font-weight: 700;
            display: inline-block;
            margin-bottom: 12px;
        }
        .case-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .case-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* 客户评论卡片 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }
        .review-card {
            background: var(--bg-white);
            padding: 30px;
            border-radius: 20px;
            box-shadow: var(--card-shadow);
            border: 1px solid rgba(226, 232, 240, 0.6);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .review-text {
            font-size: 0.95rem;
            color: var(--text-muted);
            font-style: italic;
            margin-bottom: 20px;
            position: relative;
        }
        .review-text::before {
            content: "“";
            font-size: 3rem;
            color: rgba(139, 92, 246, 0.1);
            position: absolute;
            top: -20px;
            left: -10px;
        }
        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .user-avatar-placeholder {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-gradient);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
        }
        .user-info h4 {
            font-size: 0.9rem;
            font-weight: 700;
        }
        .user-info p {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* FAQ折叠面板 */
        .faq-wrapper {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: 12px;
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: 0 2px 4px rgba(0,0,0,0.01);
            overflow: hidden;
            transition: var(--transition-smooth);
        }
        .faq-question {
            padding: 20px 24px;
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-bottom: 20px;
            transition: max-height 0.5s ease-in;
        }
        .faq-icon-arrow {
            transition: transform 0.3s;
        }
        .faq-item.active .faq-icon-arrow {
            transform: rotate(180deg);
        }

        /* 需求匹配与联系我们表单区 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 48px;
            align-items: start;
        }
        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .contact-card {
            background: var(--bg-white);
            padding: 24px;
            border-radius: 16px;
            border: 1px solid rgba(226, 232, 240, 0.8);
            display: flex;
            gap: 16px;
        }
        .contact-icon {
            font-size: 1.5rem;
            color: var(--accent-purple);
        }
        .contact-details h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .contact-details p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .qr-codes {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 16px;
        }
        .qr-item {
            text-align: center;
            background: var(--bg-white);
            padding: 12px;
            border-radius: 12px;
            border: 1px solid rgba(226, 232, 240, 0.8);
        }
        .qr-item img {
            width: 120px;
            height: 120px;
            object-fit: cover;
            border-radius: 6px;
            margin-bottom: 8px;
        }
        .qr-item p {
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--text-dark);
        }

        .form-card {
            background: var(--bg-white);
            padding: 40px;
            border-radius: 24px;
            box-shadow: var(--card-shadow);
            border: 1px solid rgba(226, 232, 240, 0.8);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-label {
            display: block;
            font-size: 0.9rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
        }
        .form-input, .form-select, .form-textarea {
            width: 100%;
            padding: 12px 16px;
            border-radius: 10px;
            border: 1px solid rgba(226, 232, 240, 1);
            background-color: var(--bg-light);
            font-size: 0.95rem;
            color: var(--text-dark);
            transition: var(--transition-smooth);
        }
        .form-input:focus, .form-select:focus, .form-textarea:focus {
            outline: none;
            border-color: var(--accent-purple);
            background-color: var(--bg-white);
            box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.15);
        }
        .btn-submit {
            width: 100%;
            background: var(--primary-gradient);
            color: white;
            border: none;
            padding: 14px;
            border-radius: 10px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition-smooth);
            box-shadow: 0 4px 12px rgba(124, 58, 237, 0.3);
        }
        .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(124, 58, 237, 0.45);
        }

        /* 知识库及文章列表 */
        .articles-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }
        .glossary-card {
            background: var(--bg-white);
            padding: 32px;
            border-radius: 20px;
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: var(--card-shadow);
        }
        .glossary-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-top: 20px;
        }
        .glossary-item h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--accent-purple);
            margin-bottom: 4px;
        }
        .glossary-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }
        .articles-list-card {
            background: var(--bg-white);
            padding: 32px;
            border-radius: 20px;
            border: 1px solid rgba(226, 232, 240, 0.8);
        }
        .articles-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 20px;
        }
        .article-link-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px;
            border-radius: 8px;
            background: var(--bg-light);
            text-decoration: none;
            color: var(--text-dark);
            font-size: 0.9rem;
            font-weight: 600;
            transition: var(--transition-smooth);
        }
        .article-link-item:hover {
            background: #faf5ff;
            color: var(--accent-purple);
            transform: translateX(4px);
        }

        /* 页脚与友情链接 */
        footer {
            background-color: var(--text-dark);
            color: #94a3b8;
            padding: 60px 0 30px;
            font-size: 0.85rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h3 {
            color: white;
            font-size: 1.25rem;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .footer-brand p {
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .footer-links-title {
            color: white;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 20px;
        }
        .footer-links-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links-list a {
            color: #94a3b8;
            text-decoration: none;
            transition: var(--transition-smooth);
        }
        .footer-links-list a:hover {
            color: white;
        }
        .friendship-links {
            border-top: 1px solid #334155;
            padding-top: 24px;
            margin-bottom: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }
        .friendship-links span {
            font-weight: 700;
            color: white;
            margin-right: 8px;
        }
        .friendship-links a {
            color: #94a3b8;
            text-decoration: none;
            transition: var(--transition-smooth);
        }
        .friendship-links a:hover {
            color: white;
        }
        .footer-bottom {
            border-top: 1px solid #334155;
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        /* 浮动客服 */
        .floating-kefu {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 99;
            background: var(--primary-gradient);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 20px rgba(124, 58, 237, 0.4);
            cursor: pointer;
            transition: var(--transition-smooth);
        }
        .floating-kefu:hover {
            transform: scale(1.1);
        }
        .kefu-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: var(--bg-white);
            padding: 16px;
            border-radius: 12px;
            box-shadow: var(--card-shadow);
            border: 1px solid rgba(226, 232, 240, 0.8);
            width: 180px;
            text-align: center;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition-smooth);
        }
        .floating-kefu:hover .kefu-popover {
            opacity: 1;
            visibility: visible;
        }
        .kefu-popover img {
            width: 140px;
            height: 140px;
            object-fit: cover;
            border-radius: 6px;
            margin-bottom: 8px;
        }
        .kefu-popover p {
            color: var(--text-dark);
            font-size: 0.75rem;
            font-weight: 700;
            margin: 0;
        }

        /* 响应式调整 */
        @media (max-width: 992px) {
            .nav-menu {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 70px);
                background: var(--bg-white);
                flex-direction: column;
                padding: 40px 24px;
                transition: 0.4s;
                align-items: stretch;
                box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
            }
            .nav-menu.open {
                left: 0;
            }
            .menu-toggle {
                display: flex;
            }
            .intro-container, .solutions-wrapper, .contact-grid, .articles-container {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }