@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');
        :root { 
            --bg: #000; 
            --text: #fff; 
            --blue: #0066FF; 
        }
        body { 
            background: var(--bg); 
            color: var(--text); 
            font-family: 'Inter', sans-serif; 
            margin: 0; 
            overflow-x: hidden; 
            font-size: 18px; /* 设置最小字号为18px */
        }
        * {
            font-size: inherit; /* 继承body的字体大小 */
        }
        a, button { 
            background: none!important; 
            outline: none!important; 
            transition: 0.3s; 
        }
        .nav-blur { 
            background: rgba(0,0,0,0.9); 
            backdrop-filter: blur(20px); 
            border-bottom: 1px solid rgba(255,255,255,0.1); 
        }
        .btn-shiny { 
            position: relative; 
            overflow: hidden; 
            background: var(--blue)!important; 
            box-shadow: 0 0 20px rgba(0,102,255,0.4); 
            border-radius: 99px; 
        }
        .btn-shiny::after { 
            content: ""; 
            position: absolute; 
            top: -50%; 
            left: -150%; 
            width: 200%; 
            height: 200%; 
            background: linear-gradient(45deg, transparent, rgba(255,255,255,0.4), transparent); 
            transform: rotate(45deg); 
            transition: 0.6s; 
        }
        .btn-shiny:hover::after { 
            left: 150%; 
        }
        
        .btn-docs {
            border: 2px solid rgba(255,255,255,0.3);
            border-radius: 99px;
            color: rgba(255,255,255,0.9);
            transition: all 0.3s ease;
        }
        .btn-docs:hover {
            background-color: rgba(0, 102, 255, 0.9) !important;
            color: white !important;
            border-color: rgba(0, 102, 255, 0.9);
            box-shadow: 0 0 25px rgba(0, 102, 255, 0.5);
        }
        
        .glass-card { 
            border: 1px solid rgba(255,255,255,0.1); 
            background: rgba(255,255,255,0.02); 
            border-radius: 2rem; 
            transition: 0.4s; 
        }
        .glass-card:hover { 
            border-color: rgba(255,255,255,0.2); 
            background: rgba(255,255,255,0.05); 
            transform: translateY(-5px); 
        }
        
        #mobile-menu { 
            position: fixed; 
            top: 0; 
            right: 0; 
            width: 100%; 
            height: 100vh; 
            z-index: 40; 
            transition: 0.5s; 
            transform: translateX(100%); 
            background: rgba(0,0,0,0.98); 
            backdrop-filter: blur(20px);
            padding: 120px 40px; 
            display: flex; 
            flex-direction: column; 
            gap: 2rem; 
        }
        #mobile-menu.active { 
            transform: translateX(0); 
        }
        
        .nav-item .dropdown-menu { 
            opacity: 0; 
            visibility: hidden; 
            position: absolute; 
            top: 100%; 
            left: 0; 
            background: rgba(0,0,0,0.95); 
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255,255,255,0.1); 
            padding: 1rem; 
            width: 240px; 
            transition: 0.3s; 
            border-radius: 1rem;
            z-index: 100;
        }
        .nav-item:hover .dropdown-menu { 
            opacity: 1; 
            visibility: visible; 
        }
        
        /* 国内AI矩阵页面新增样式 */
        .matrix-hero {
            background: linear-gradient(135deg, rgba(0, 102, 255, 0.15) 0%, rgba(0,0,0,0) 100%);
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }
        
        .matrix-platform-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1.5rem;
        }
        
        .platform-card {
            border-radius: 1.5rem;
            padding: 2rem;
            background: rgba(255,255,255,0.02);
            border: 1px solid rgba(255,255,255,0.08);
            transition: all 0.3s ease;
        }
        
        .platform-card:hover {
            background: rgba(255,255,255,0.05);
            border-color: rgba(0, 102, 255, 0.3);
            transform: translateY(-8px);
        }
        
        .platform-logo {
            width: 80px;
            height: 80px;
            border-radius: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            font-size: 2.5rem;
        }
        
        .platform-baidu {
            background: linear-gradient(135deg, #2932e1, #1a1f9c);
            color: white;
        }
        
        .platform-alibaba {
            background: linear-gradient(135deg, #FF6A00, #D14800);
            color: white;
        }
        
        .platform-tencent {
            background: linear-gradient(135deg, #00BFFF, #0078D7);
            color: white;
        }
        
        .platform-bytedance {
            background: linear-gradient(135deg, #000000, #333333);
            color: white;
        }
        
        .platform-huawei {
            background: linear-gradient(135deg, #FF0000, #CC0000);
            color: white;
        }
        
        .platform-360 {
            background: linear-gradient(135deg, #00B050, #008040);
            color: white;
        }
        
        .platform-sohu {
            background: linear-gradient(135deg, #FFD700, #D4AF37);
            color: #333;
        }
        
        .platform-sogou {
            background: linear-gradient(135deg, #FF6B6B, #EE5A5A);
            color: white;
        }
        
        .platform-feature {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            margin-bottom: 1.5rem;
        }
        
        .platform-feature-icon {
            width: 50px;
            height: 50px;
            border-radius: 12px;
            background: rgba(0, 102, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--blue);
            font-size: 1.5rem;
        }
        
        .matrix-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            border-radius: 1.5rem;
            overflow: hidden;
            border: 1px solid rgba(255,255,255,0.1);
        }
        
        .matrix-table th {
            background: rgba(0, 102, 255, 0.15);
            padding: 1.5rem;
            text-align: left;
            font-weight: 700;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        
        .matrix-table td {
            padding: 1.5rem;
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }
        
        .matrix-table tr:last-child td {
            border-bottom: none;
        }
        
        .matrix-table tr:hover {
            background: rgba(255,255,255,0.02);
        }
        
        .matrix-badge {
            display: inline-block;
            padding: 0.5rem 1.2rem;
            background: rgba(0, 102, 255, 0.1);
            border-radius: 99px;
            font-size: 1rem;
            color: rgba(255,255,255,0.9);
            border: 1px solid rgba(0, 102, 255, 0.3);
        }
        
        .solution-steps {
            counter-reset: step-counter;
        }
        
        .solution-step {
            position: relative;
            padding-left: 5rem;
            margin-bottom: 3rem;
        }
        
        .solution-step::before {
            counter-increment: step-counter;
            content: counter(step-counter);
            position: absolute;
            left: 0;
            top: 0;
            width: 4rem;
            height: 4rem;
            background: rgba(0, 102, 255, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--blue);
            border: 2px solid rgba(0, 102, 255, 0.3);
        }
        
        .case-study-card {
            position: relative;
            overflow: hidden;
            border-radius: 1.5rem;
            height: 100%;
        }
        
        .case-study-img {
            width: 100%;
            height: 300px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .case-study-card:hover .case-study-img {
            transform: scale(1.05);
        }
        
        .case-study-content {
            padding: 2rem;
            background: rgba(0,0,0,0.8);
            position: relative;
        }
        
        .case-study-badge {
            position: absolute;
            top: -1rem;
            right: 2rem;
            background: var(--blue);
            color: white;
            padding: 0.5rem 1.5rem;
            border-radius: 99px;
            font-weight: 700;
            font-size: 0.9rem;
        }
        
        .pricing-card {
            border-radius: 2rem;
            padding: 3rem;
            text-align: center;
            position: relative;
            overflow: hidden;
            height: 100%;
            border: 2px solid rgba(255,255,255,0.1);
        }
        
        .pricing-card.popular {
            border-color: var(--blue);
            background: rgba(0, 102, 255, 0.05);
        }
        
        .pricing-badge {
            position: absolute;
            top: 1rem;
            right: 1rem;
            background: var(--blue);
            color: white;
            padding: 0.5rem 1.5rem;
            border-radius: 99px;
            font-weight: 700;
            font-size: 0.9rem;
        }
        
        .pricing-price {
            font-size: 4rem;
            font-weight: 900;
            line-height: 1;
            margin: 2rem 0;
            color: white;
        }
        
        .pricing-price span {
            font-size: 1.5rem;
            color: rgba(255,255,255,0.7);
            font-weight: 400;
        }
        
        .pricing-feature {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            margin-bottom: 1rem;
            text-align: left;
        }
        
        .pricing-feature i {
            color: var(--blue);
        }
        
        .faq-item {
            border-bottom: 1px solid rgba(255,255,255,0.1);
            padding: 2rem 0;
        }
        
        .faq-question {
            font-size: 1.3rem;
            font-weight: 700;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s ease;
            margin-top: 0;
        }
        
        .faq-answer.active {
            max-height: 500px;
            margin-top: 1.5rem;
        }
        
        .faq-icon {
            transition: transform 0.3s ease;
        }
        
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        
        /* 调整整体字体大小 */
        h1, h2, h3, h4, h5, h6 {
            line-height: 1.2;
        }
        
        p, span, a, button, li {
            font-size: 1.1rem !important; /* 默认文字大小 */
        }
        
        .text-sm {
            font-size: 1rem ; /* 调整小字大小 */
        }
        
        .text-xs {
            font-size: 0.95rem !important; /* 调整超小字大小 */
        }
        
        /* 确保导航栏字体大小合适 */
        nav a, nav button {
            font-size: 1.1rem;
        }
        
        /* 新增背景特效样式 */
        .matrix-hero {
            position: relative;
            overflow: hidden;
        }

        /* 动态粒子背景 */
        #particles-js {
            position: fixed;
            width: 100%;
            height: 100%;
            top: 0;
            left: 0;
            z-index: -1;
            pointer-events: none;
        }

        /* 渐变光环特效 */
        .halo-effect {
            position: absolute;
            border-radius: 50%;
            filter: blur(60px);
            opacity: 0.1;
            z-index: -1;
            pointer-events: none;
        }

        .halo-blue {
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, var(--blue), transparent);
            top: 10%;
            left: 10%;
            animation: float-halo 25s infinite alternate ease-in-out;
        }

        .halo-purple {
            width: 800px;
            height: 800px;
            background: radial-gradient(circle, #8B5CF6, transparent);
            bottom: 5%;
            right: 5%;
            animation: float-halo 30s infinite alternate-reverse ease-in-out;
        }

        @keyframes float-halo {
            0%, 100% {
                transform: translate(0, 0) scale(1);
            }
            33% {
                transform: translate(100px, -50px) scale(1.05);
            }
            66% {
                transform: translate(-50px, 100px) scale(0.95);
            }
        }

        /* 扫描线效果 */
        .scanlines {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(
                to bottom,
                transparent 50%,
                rgba(0, 102, 255, 0.02) 51%
            );
            background-size: 100% 4px;
            z-index: 9999;
            pointer-events: none;
            opacity: 0.1;
            animation: scanlines 8s linear infinite;
        }

        @keyframes scanlines {
            0% {
                transform: translateY(0);
            }
            100% {
                transform: translateY(100%);
            }
        }

        /* 悬浮光点 */
        .floating-dots {
            position: absolute;
            width: 100%;
            height: 100%;
            top: 0;
            left: 0;
            z-index: -1;
            pointer-events: none;
        }

        .floating-dot {
            position: absolute;
            width: 3px;
            height: 3px;
            background: var(--blue);
            border-radius: 50%;
            filter: blur(1px);
            opacity: 0.3;
        }

        /* 平台卡片发光效果增强 */
        .platform-card {
            position: relative;
            overflow: hidden;
        }

        .platform-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(45deg, transparent, rgba(255,255,255,0.02), transparent);
            transform: translateX(-100%);
            transition: transform 0.6s ease;
        }

        .platform-card:hover::before {
            transform: translateX(100%);
        }

        /* 标题流光效果 */
        .flowing-title {
            position: relative;
            display: inline-block;
            background: linear-gradient(90deg, 
                #fff 0%, 
                var(--blue) 25%, 
                #8B5CF6 50%, 
                var(--blue) 75%, 
                #fff 100%);
            background-size: 200% auto;
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            animation: flowing-text 3s linear infinite;
        }

        @keyframes flowing-text {
            0% {
                background-position: 0% center;
            }
            100% {
                background-position: 200% center;
            }
        }

        /* 按钮脉冲效果 */
        .btn-shiny {
            animation: pulse-blue 2s infinite;
        }

        @keyframes pulse-blue {
            0%, 100% {
                box-shadow: 0 0 20px rgba(0,102,255,0.4);
            }
            50% {
                box-shadow: 0 0 40px rgba(0,102,255,0.8);
            }
        }

        /* 数字计数器动画 */
        .stat-number {
            position: relative;
            display: inline-block;
        }

        .stat-number::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--blue), transparent);
            transform: scaleX(0);
            transition: transform 0.3s ease;
        }

        .glass-card:hover .stat-number::after {
            transform: scaleX(1);
        }

        /* 页面滚动进度条 */
        .scroll-progress {
            position: fixed;
            top: 0;
            left: 0;
            width: 0%;
            height: 3px;
            background: linear-gradient(90deg, var(--blue), #8B5CF6);
            z-index: 1000;
            transition: width 0.1s ease;
        }

        /* 段落渐显动画 */
        .reveal-text {
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.6s ease;
        }

        .reveal-text.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            body {
                font-size: 16px; /* 移动端可以稍小 */
            }
            
            .glass-card {
                padding: 2rem !important;
            }
            
            #mobile-menu {
                padding: 100px 30px;
            }
            
            #mobile-menu a {
                font-size: 2.2rem;
            }
            
            .platform-logo {
                width: 60px;
                height: 60px;
                font-size: 2rem;
            }
            
            .matrix-platform-grid {
                grid-template-columns: 1fr;
            }
            
            .solution-step {
                padding-left: 4rem;
            }
            
            .solution-step::before {
                width: 3rem;
                height: 3rem;
                font-size: 1.5rem;
            }
            
            .pricing-card {
                padding: 2rem;
            }
            
            .pricing-price {
                font-size: 3rem;
            }
            
            .halo-blue, .halo-purple {
                display: none;
            }
            
            .scanlines {
                opacity: 0.05;
            }
        }
        
        @media (min-width: 769px) {
            /* 桌面端确保最小字号 */
            body {
                font-size: 18px;
            }
        }