:root {
            --primary-color: #00f3ff;
            --secondary-color: #9d4edd;
            --accent-color: #ff0055;
            --dark-bg: #0a0a1a;
            --darker-bg: #050510;
            --card-bg: rgba(20, 20, 40, 0.7);
            --text-primary: #ffffff;
            --text-secondary: #b0b0ff;
            --glow-shadow: 0 0 20px var(--primary-color);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Exo 2', sans-serif;
            background-color: var(--dark-bg);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            background-image: 
                radial-gradient(circle at 10% 20%, rgba(0, 243, 255, 0.05) 0%, transparent 20%),
                radial-gradient(circle at 90% 80%, rgba(157, 78, 221, 0.05) 0%, transparent 20%);
            background-attachment: fixed;
        }
        
        h1, h2, h3, h4, .logo, .nav-link {
            font-family: 'Orbitron', sans-serif;
            font-weight: 700;
        }
        
        .monospace {
            font-family: 'Share Tech Mono', monospace;
        }
        
        /* 粒子背景容器 */
        #particles-js {
            position: fixed;
            width: 100%;
            height: 100%;
            top: 0;
            left: 0;
            z-index: -1;
        }
        
        /* 3D场景容器 */
        #three-container {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -2;
            pointer-events: none;
        }
        
        /* 头部导航 */
        header {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(10, 10, 26, 0.9);
            backdrop-filter: blur(15px);
            border-bottom: 1px solid rgba(0, 243, 255, 0.2);
            padding: 20px 0;
            transition: var(--transition);
        }
        
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 40px;
        }
        
        .logo {
            font-size: 2rem;
            font-weight: 900;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-decoration: none;
            display: flex;
            align-items: center;
            position: relative;
            color: #01eafd;
        }
        
        .logo i {
            margin-right: 12px;
            font-size: 1.8rem;
            filter: drop-shadow(0 0 8px var(--primary-color));
        }
        
        .logo span {
            position: relative;
        }
        
        .logo span::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-color), transparent);
        }
        
        .nav-menu {
            display: flex;
            list-style: none;
        }
        
        .nav-item {
            margin-left: 40px;
            position: relative;
        }
        
        .nav-link {
            color: var(--text-primary);
            text-decoration: none;
            font-size: 0.95rem;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            position: relative;
            padding: 8px 0;
            transition: var(--transition);
            display: flex;
            align-items: center;
        }
        
        .nav-link i {
            margin-right: 8px;
            font-size: 0.9rem;
        }
        
        .nav-link:hover {
            color: var(--primary-color);
            text-shadow: 0 0 10px rgba(0, 243, 255, 0.7);
        }
        
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary-color);
            transition: width 0.3s ease;
            box-shadow: 0 0 10px var(--primary-color);
        }
        
        .nav-link:hover::after {
            width: 100%;
        }
        
        .nav-cta {
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            padding: 10px 25px;
            border-radius: 30px;
            color: var(--darker-bg);
            font-weight: 700;
            margin-left: 30px;
            transition: var(--transition);
            box-shadow: 0 0 15px rgba(0, 243, 255, 0.3);
        }
        
        .nav-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 20px rgba(0, 243, 255, 0.5);
            color: var(--darker-bg);
        }
        
        .mobile-toggle {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--primary-color);
            transition: var(--transition);
        }
        
        .mobile-toggle:hover {
            transform: rotate(90deg);
        }
        
        /* 主视觉区域 */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 150px 40px 100px;
            overflow: hidden;
        }
        
        .hero-content {
            max-width: 1200px;
            z-index: 2;
            position: relative;
        }
        
        .hero h1 {
            font-size: 5rem;
            margin-bottom: 25px;
            text-transform: uppercase;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--accent-color));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            background-size: 200% auto;
            animation: gradientShift 5s ease-in-out infinite;
            line-height: 1.1;
            text-shadow: 0 0 30px rgba(0, 243, 255, 0.3);
        }
        
        @keyframes gradientShift {
            0%, 100% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
        }
        
        .hero-subtitle {
            font-size: 1.8rem;
            margin-bottom: 40px;
            color: var(--text-secondary);
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
            font-weight: 300;
        }
        
        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 60px;
            margin-bottom: 60px;
            flex-wrap: wrap;
        }
        
        .stat-item {
            text-align: center;
        }
        
        .stat-number {
            font-size: 3.5rem;
            font-weight: 900;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
            margin-bottom: 10px;
            font-family: 'Orbitron', sans-serif;
        }
        
        .stat-label {
            font-size: 1rem;
            color: var(--text-secondary);
            text-transform: uppercase;
            letter-spacing: 2px;
        }
        
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 30px;
            flex-wrap: wrap;
        }
        
        .cta-button {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 18px 45px;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            color: var(--darker-bg);
            text-decoration: none;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            border-radius: 50px;
            position: relative;
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--glow-shadow);
            z-index: 1;
            font-size: 1.1rem;
        }
        
        .cta-button i {
            margin-left: 10px;
            transition: transform 0.3s ease;
        }
        
        .cta-button:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 243, 255, 0.4);
        }
        
        .cta-button:hover i {
            transform: translateX(5px);
        }
        
        .cta-button::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
            transition: left 0.7s ease;
            z-index: -1;
        }
        
        .cta-button:hover::before {
            left: 100%;
        }
        
        .cta-button-secondary {
            background: transparent;
            color: var(--primary-color);
            border: 2px solid var(--primary-color);
            box-shadow: 0 0 15px rgba(0, 243, 255, 0.2);
        }
        
        .cta-button-secondary:hover {
            background: rgba(0, 243, 255, 0.1);
        }
        
        /* 3D卡片效果 */
        .card-3d {
            background: var(--card-bg);
            border-radius: 20px;
            padding: 40px;
            margin: 20px;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(0, 243, 255, 0.1);
            transition: var(--transition);
            backdrop-filter: blur(10px);
            height: 100%;
        }
        
        .card-3d::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(0, 243, 255, 0.1), transparent 30%);
            z-index: -1;
        }
        
        .card-3d::after {
            content: '';
            position: absolute;
            top: -2px;
            left: -2px;
            right: -2px;
            bottom: -2px;
            background: linear-gradient(45deg, var(--primary-color), var(--secondary-color), transparent);
            z-index: -2;
            border-radius: 22px;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        
        .card-3d:hover {
            transform: translateY(-15px) rotateX(5deg);
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.6), var(--glow-shadow);
            border-color: rgba(0, 243, 255, 0.3);
        }
        
        .card-3d:hover::after {
            opacity: 1;
        }
        
        .card-icon {
            font-size: 3.5rem;
            margin-bottom: 25px;
            background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            display: inline-block;
        }
        
        .card-number {
            position: absolute;
            top: 20px;
            right: 20px;
            font-size: 4rem;
            font-weight: 900;
            opacity: 0.1;
            color: var(--primary-color);
            font-family: 'Orbitron', sans-serif;
        }
        
        .read-more {
            display: inline-flex;
            align-items: center;
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
            margin-top: 20px;
            transition: var(--transition);
        }
        
        .read-more i {
            margin-left: 8px;
            transition: transform 0.3s ease;
        }
        
        .read-more:hover {
            color: var(--secondary-color);
        }
        
        .read-more:hover i {
            transform: translateX(5px);
        }
        
        /* 服务区域 */
        .services {
            padding: 150px 40px;
            max-width: 1400px;
            margin: 0 auto;
            position: relative;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 80px;
            position: relative;
        }
        
        .section-title h2 {
            font-size: 3.5rem;
            display: inline-block;
            margin-bottom: 20px;
            position: relative;
        }
        
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            width: 150px;
            height: 4px;
            background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
        }
        
        .section-subtitle {
            font-size: 1.3rem;
            color: var(--text-secondary);
            max-width: 700px;
            margin: 0 auto;
        }
        
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 40px;
        }
        
        /* 建站知识推荐区域 */
        .knowledge-section {
            padding: 150px 40px;
            background: radial-gradient(ellipse at center, rgba(15, 25, 45, 0.9) 0%, rgba(5, 10, 20, 1) 100%);
            position: relative;
            overflow: hidden;
        }
        
        .knowledge-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: 
                linear-gradient(45deg, transparent 49%, rgba(0, 243, 255, 0.03) 50%, transparent 51%),
                linear-gradient(-45deg, transparent 49%, rgba(157, 78, 221, 0.03) 50%, transparent 51%);
            background-size: 100px 100px;
            z-index: 0;
        }
        
        .knowledge-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 40px;
            position: relative;
            z-index: 1;
        }
        
        .knowledge-card {
            background: rgba(20, 25, 45, 0.8);
            border-radius: 20px;
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid rgba(0, 243, 255, 0.1);
            height: 100%;
            position: relative;
            backdrop-filter: blur(10px);
        }
        
        .knowledge-card:hover {
            transform: translateY(-15px);
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.7), 0 0 30px rgba(0, 243, 255, 0.3);
            border-color: rgba(0, 243, 255, 0.3);
        }
        
        .knowledge-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
        }
        
        .knowledge-image {
            height: 220px;
            width: 100%;
            overflow: hidden;
        }
        
        .knowledge-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .knowledge-card:hover .knowledge-image img {
            transform: scale(1.1);
        }
        
        .knowledge-content {
            padding: 30px;
        }
        
        .knowledge-category {
            display: inline-block;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            color: var(--darker-bg);
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 700;
            margin-bottom: 15px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        
        .knowledge-title {
            font-size: 1.5rem;
            margin-bottom: 15px;
            line-height: 1.4;
        }
        
        .knowledge-title a {
            color: var(--text-primary);
            text-decoration: none;
            transition: var(--transition);
        }
        
        .knowledge-title a:hover {
            color: var(--primary-color);
        }
        
        .knowledge-excerpt {
            color: var(--text-secondary);
            margin-bottom: 20px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        
        .knowledge-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-secondary);
            font-size: 0.9rem;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        .knowledge-date {
            display: flex;
            align-items: center;
        }
        
        .knowledge-date i {
            margin-right: 8px;
            color: var(--primary-color);
        }
        
        .knowledge-views {
            display: flex;
            align-items: center;
        }
        
        .knowledge-views i {
            margin-right: 8px;
            color: var(--accent-color);
        }
        
        .knowledge-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 15px;
        }
        
        .knowledge-tag {
            background: rgba(0, 243, 255, 0.1);
            color: var(--primary-color);
            padding: 5px 12px;
            border-radius: 15px;
            font-size: 0.8rem;
            font-family: 'Share Tech Mono', monospace;
            border: 1px solid rgba(0, 243, 255, 0.2);
        }
        
        .knowledge-cta {
            text-align: center;
            margin-top: 60px;
            position: relative;
            z-index: 1;
        }
        
        /* AI助手区域 */
        .ai-section {
            padding: 150px 40px;
            background: radial-gradient(ellipse at center, rgba(10, 20, 40, 0.8) 0%, rgba(5, 10, 20, 0.9) 100%);
            position: relative;
            overflow: hidden;
        }
        
        .ai-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: 
                radial-gradient(circle at 30% 30%, rgba(0, 243, 255, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 70% 70%, rgba(157, 78, 221, 0.05) 0%, transparent 50%);
            z-index: 0;
        }
        
        .ai-chat-container {
            background: rgba(15, 20, 40, 0.8);
            border-radius: 25px;
            padding: 10px;
            margin-top: 50px;
            border: 1px solid rgba(0, 243, 255, 0.3);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7), inset 0 0 30px rgba(0, 243, 255, 0.1);
            position: relative;
            overflow: hidden;
            backdrop-filter: blur(15px);
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
        }
        
        .ai-chat-container::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(0, 243, 255, 0.08) 0%, transparent 70%);
            z-index: 0;
            animation: rotate 30s linear infinite;
        }
        
        @keyframes rotate {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        .ai-chat-header {
            display: flex;
            align-items: center;
            margin-bottom: 30px;
            position: relative;
            z-index: 1;
        }
        
        .ai-avatar {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 25px;
            font-size: 2rem;
            box-shadow: var(--glow-shadow);
            position: relative;
            overflow: hidden;
        }
        
        .ai-avatar::after {
            content: '';
            position: absolute;
            top: -10px;
            left: -10px;
            right: -10px;
            bottom: -10px;
            background: linear-gradient(45deg, var(--primary-color), var(--secondary-color), var(--primary-color));
            z-index: -1;
            border-radius: 50%;
            opacity: 0.5;
            animation: rotate 10s linear infinite;
        }
        
        .ai-chat-messages {
            height: 350px;
            overflow-y: auto;
            padding: 25px;
            background: rgba(0, 5, 15, 0.5);
            border-radius: 20px;
            margin-bottom: 25px;
            position: relative;
            z-index: 1;
            border: 1px solid rgba(0, 243, 255, 0.2);
        }
        
        .ai-chat-messages table.md-table {
            width: 100%;
            border-collapse: collapse;
            margin: 10px 0;
            font-size: 0.9rem;
        }
        
        .ai-chat-messages table.md-table th,
        .ai-chat-messages table.md-table td {
            border: 1px solid rgba(0, 243, 255, 0.2);
            padding: 6px 10px;
            text-align: left;
        }
        
        .ai-chat-messages table.md-table th {
            background: rgba(0, 243, 255, 0.08);
            color: var(--primary-color);
        }
        
        .message {
            margin-bottom: 20px;
            padding: 18px;
            border-radius: 20px;
            max-width: 85%;
            position: relative;
            animation: fadeIn 0.5s ease;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .ai-message {
            background: linear-gradient(135deg, rgba(0, 150, 255, 0.2), rgba(0, 100, 200, 0.1));
            border-left: 4px solid var(--primary-color);
            align-self: flex-start;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }
        
        .user-message {
            background: linear-gradient(135deg, rgba(157, 78, 221, 0.2), rgba(120, 50, 180, 0.1));
            border-right: 4px solid var(--secondary-color);
            margin-left: auto;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }
        
        .ai-chat-input {
            display: flex;
            position: relative;
            z-index: 1;
        }
        
        .ai-chat-input input {
            flex: 1;
            padding: 18px 25px;
            background: rgba(0, 5, 15, 0.7);
            border: 1px solid rgba(0, 243, 255, 0.4);
            border-radius: 50px;
            color: var(--text-primary);
            font-size: 1.1rem;
            outline: none;
            transition: var(--transition);
            font-family: 'Exo 2', sans-serif;
        }
        
        .ai-chat-input input:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 20px rgba(0, 243, 255, 0.4);
        }
        
        .ai-chat-input button {
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            border: none;
            width: 65px;
            height: 65px;
            border-radius: 50%;
            margin-left: 20px;
            color: var(--darker-bg);
            cursor: pointer;
            transition: var(--transition);
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .ai-chat-input button:hover {
            transform: scale(1.1) rotate(15deg);
            box-shadow: var(--glow-shadow);
        }
        
        .chat-quick-questions {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-top: 25px;
            position: relative;
            z-index: 1;
        }
        
        .quick-question {
            padding: 10px 20px;
            background: rgba(0, 100, 200, 0.2);
            border: 1px solid rgba(0, 150, 255, 0.3);
            border-radius: 30px;
            color: var(--text-primary);
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .quick-question:hover {
            background: rgba(0, 150, 255, 0.3);
            transform: translateY(-3px);
        }
        
        /* 作品展示 */
        .works {
            padding: 150px 40px;
            max-width: 1400px;
            margin: 0 auto;
        }
        
        .works-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 40px;
        }
        
        .work-item {
            position: relative;
            border-radius: 20px;
            overflow: hidden;
            height: 100%;
            transition: var(--transition);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
        }
        
        .work-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        
        .work-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(to top, rgba(10, 10, 26, 0.95), transparent 50%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 30px;
            opacity: 0;
            transition: var(--transition);
        }
        
        .work-item:hover .work-overlay {
            opacity: 1;
        }
        
        .work-item:hover img {
            transform: scale(1.1);
        }
        
        .work-tags {
            display: flex;
            gap: 10px;
            margin-top: 15px;
        }
        
        .work-tag {
            background: rgba(0, 243, 255, 0.2);
            color: var(--primary-color);
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-family: 'Share Tech Mono', monospace;
        }
        
        /* 流程部分 */
        .process {
            padding: 150px 40px;
            background: var(--darker-bg);
            position: relative;
            overflow: hidden;
        }
        
        .process::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: 
                linear-gradient(45deg, transparent 48%, rgba(0, 243, 255, 0.03) 50%, transparent 52%),
                linear-gradient(-45deg, transparent 48%, rgba(0, 243, 255, 0.03) 50%, transparent 52%);
            background-size: 80px 80px;
            z-index: 0;
        }
        
        .process-steps {
            display: flex;
            justify-content: space-between;
            position: relative;
            z-index: 1;
            max-width: 1400px;
            margin: 0 auto;
            flex-wrap: wrap;
            counter-reset: step-counter;
        }
        
        .process-step {
            text-align: center;
            flex: 1;
            min-width: 180px;
            margin: 20px;
            position: relative;
            padding-top: 30px;
        }
        
        .process-step::before {
            counter-increment: step-counter;
            content: counter(step-counter);
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            font-weight: 900;
            box-shadow: var(--glow-shadow);
            z-index: 2;
        }
        
        .process-step::after {
            content: '';
            position: absolute;
            top: 35px;
            left: 50%;
            width: calc(100% - 70px);
            height: 2px;
            background: linear-gradient(90deg, var(--primary-color), transparent);
            z-index: 1;
        }
        
        .process-step:last-child::after {
            display: none;
        }
        
        .step-content {
            background: var(--card-bg);
            border-radius: 20px;
            padding: 90px 25px 35px;
            margin-top: 35px;
            border: 1px solid rgba(0, 243, 255, 0.1);
            transition: var(--transition);
            height: calc(100% - 35px);
        }
        
        .step-content h3 {
            font-size: 1.4rem;
            margin-bottom: 12px;
        }
        
        .step-content p {
            color: var(--text-secondary);
            font-size: 0.95rem;
        }
        
        .step-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            background: rgba(0, 243, 255, 0.12);
            border: 1px solid rgba(0, 243, 255, 0.4);
            color: var(--primary-color);
            font-size: 1.3rem;
            box-shadow: 0 0 15px rgba(0, 243, 255, 0.4);
        }
        
        .step-meta {
            margin-top: 18px;
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-secondary);
        }
        
        .step-time {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 12px;
            border-radius: 20px;
            background: rgba(157, 78, 221, 0.18);
            border: 1px solid rgba(157, 78, 221, 0.6);
        }
        
        .step-time i {
            color: var(--primary-color);
            font-size: 0.85rem;
        }
        
        .process-tag {
            padding: 5px 12px;
            border-radius: 20px;
            background: rgba(0, 243, 255, 0.12);
            border: 1px solid rgba(0, 243, 255, 0.6);
            font-size: 0.85rem;
            font-family: 'Share Tech Mono', monospace;
            color: var(--primary-color);
        }
        
        .process-extra {
            max-width: 900px;
            margin: 80px auto 0;
            text-align: center;
            position: relative;
            z-index: 1;
        }
        
        .process-extra p {
            color: var(--text-secondary);
            margin-bottom: 25px;
            font-size: 0.98rem;
        }
        
        .process-step:hover .step-content {
            transform: translateY(-10px);
            border-color: rgba(0, 243, 255, 0.3);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
        }
        
        /* 页脚 */
        footer {
            background: var(--darker-bg);
            padding: 100px 40px 50px;
            border-top: 1px solid rgba(0, 243, 255, 0.2);
            position: relative;
            overflow: hidden;
        }
        
        .footer-content {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 60px;
            margin-bottom: 60px;
            position: relative;
            z-index: 1;
        }
        
        .footer-section h3 {
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 15px;
            font-size: 1.8rem;
        }
        
        .footer-section h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 3px;
            background: var(--primary-color);
            box-shadow: 0 0 10px var(--primary-color);
        }
        
        .social-icons {
            display: flex;
            gap: 20px;
            margin-top: 25px;
        }
        
        .social-icons a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 50px;
            height: 50px;
            background: rgba(0, 243, 255, 0.1);
            border-radius: 50%;
            color: var(--primary-color);
            font-size: 1.3rem;
            transition: var(--transition);
            border: 1px solid rgba(0, 243, 255, 0.2);
        }
        
        .social-icons a:hover {
            background: rgba(0, 243, 255, 0.2);
            transform: translateY(-5px);
            box-shadow: 0 5px 15px rgba(0, 243, 255, 0.3);
        }
        
        .footer-section ul {
            list-style: none;
        }
        
        .footer-section ul li {
            margin-bottom: 15px;
        }
        
        .footer-section ul li a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
        }
        
        .footer-section ul li a i {
            margin-right: 10px;
            font-size: 0.9rem;
            color: var(--primary-color);
        }
        
        .footer-section ul li a:hover {
            color: var(--primary-color);
            transform: translateX(5px);
        }
        
        .footer-section p {
            margin-bottom: 15px;
            display: flex;
            align-items: center;
        }
        
        .footer-section p i {
            margin-right: 12px;
            color: var(--primary-color);
            width: 20px;
            text-align: center;
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 50px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            max-width: 1400px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }
        
        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 30px;
            margin-bottom: 25px;
        }
        
        .footer-links a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: var(--transition);
            font-size: 0.9rem;
        }
        
        .footer-links a:hover {
            color: var(--primary-color);
        }
        
        /* 响应式设计 */
        @media (max-width: 1200px) {
            .hero h1 {
                font-size: 4rem;
            }
            
            .process-step::after {
                width: calc(100% - 100px);
            }
        }
        
        @media (max-width: 992px) {
            .hero h1 {
                font-size: 3.5rem;
            }
            
            .hero-stats {
                gap: 40px;
            }
            
            .stat-number {
                font-size: 3rem;
            }
            
            .nav-menu {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 80px);
                background: rgba(10, 10, 26, 0.98);
                flex-direction: column;
                align-items: center;
                justify-content: flex-start;
                padding-top: 60px;
                transition: left 0.5s ease;
                backdrop-filter: blur(20px);
            }
            
            .nav-menu.active {
                left: 0;
            }
            
            .nav-item {
                margin: 20px 0;
            }
            
            .nav-cta {
                margin-left: 0;
                margin-top: 20px;
            }
            
            .mobile-toggle {
                display: block;
            }
            
            .process-steps {
                flex-direction: column;
                align-items: center;
            }
            
            .process-step::after {
                display: none;
            }
        }
        
        @media (max-width: 768px) {
            .hero {
                padding: 150px 20px 80px;
            }
            
            .hero h1 {
                font-size: 2.8rem;
            }
            
            .hero-subtitle {
                font-size: 1.4rem;
            }
            
            .section-title h2 {
                font-size: 2.5rem;
            }
            
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            
            .cta-button {
                width: 100%;
                max-width: 300px;
            }
            
            .header-container {
                padding: 0 20px;
            }
            
            .services, .knowledge-section, .ai-section, .works, .process {
                padding: 100px 20px;
            }
            
            .knowledge-grid {
                grid-template-columns: 1fr;
            }
            
            .works-grid {
                grid-template-columns: 1fr;
            }
            
            .work-item {
                height: 240px;
            }
            
            .ai-chat-container {
                padding: 10px;
            }
            
            .ai-chat-messages {
                height: 280px;
            }
            
            .ai-chat-input button {
                width: 56px;
                height: 56px;
                margin-left: 15px;
            }
            
            .chat-quick-questions {
                gap: 10px;
            }
            
            .quick-question {
                font-size: 0.85rem;
                padding: 8px 16px;
            }
            
            .data-viz {
                flex-direction: column;
                align-items: center;
            }
            
            .viz-circle {
                width: 130px;
                height: 130px;
            }
            
            .viz-percent {
                font-size: 2rem;
            }
            
            footer {
                padding: 80px 20px 40px;
            }
            
            .footer-content {
                gap: 40px;
            }
            
            .footer-links {
                gap: 20px;
            }
        }
        
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 2.2rem;
            }
            
            .hero-subtitle {
                font-size: 1.1rem;
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
            
            .cta-button {
                padding: 14px 30px;
                font-size: 0.95rem;
            }
            
            .cta-button-secondary {
                border-width: 1px;
            }
            
            .nav-cta {
                padding: 8px 18px;
                font-size: 0.85rem;
            }
            
            .stat-number {
                font-size: 2.4rem;
            }
            
            .card-3d {
                padding: 30px 20px;
            }
            
            .work-item {
                height: 210px;
            }
            
            .ai-chat-input input {
                font-size: 1rem;
                padding: 14px 18px;
            }
            
            .ai-chat-input button {
                width: 50px;
                height: 50px;
            }
        }
        
        /* 加载动画 */
        .loader {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--darker-bg);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            z-index: 9999;
            transition: opacity 0.5s ease, visibility 0.5s ease;
        }
        
        .loader.hidden {
            opacity: 0;
            visibility: hidden;
        }
        
        .spinner {
            width: 100px;
            height: 100px;
            border: 5px solid rgba(0, 243, 255, 0.1);
            border-top-color: var(--primary-color);
            border-radius: 50%;
            animation: spin 1.5s linear infinite;
            margin-bottom: 30px;
            box-shadow: 0 0 30px rgba(0, 243, 255, 0.3);
        }
        
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        .loader-text {
            font-size: 1.2rem;
            color: var(--primary-color);
            font-family: 'Orbitron', sans-serif;
            letter-spacing: 3px;
            text-transform: uppercase;
        }
        
        /* 滚动条样式 */
        ::-webkit-scrollbar {
            width: 12px;
        }
        
        ::-webkit-scrollbar-track {
            background: rgba(10, 10, 26, 0.5);
            border-radius: 10px;
        }
        
        ::-webkit-scrollbar-thumb {
            background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
            border-radius: 10px;
            border: 2px solid rgba(10, 10, 26, 0.5);
        }
        
        /* 科技感线条装饰 */
        .tech-line {
            position: absolute;
            background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
            height: 1px;
            opacity: 0.2;
            z-index: 0;
        }
        
        .tech-line.horizontal {
            width: 100%;
            left: 0;
        }
        
        .tech-line.vertical {
            height: 100%;
            width: 1px;
            top: 0;
        }
        
        /* 浮动元素 */
        .float-element {
            position: absolute;
            border-radius: 50%;
            z-index: 0;
            pointer-events: none;
        }
        
        /* 进度条动画 */
        .progress-bar {
            width: 100%;
            height: 10px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 5px;
            overflow: hidden;
            margin-top: 15px;
        }
        
        .progress-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            border-radius: 5px;
            width: 0;
            transition: width 2s ease-in-out;
        }
        
        /* 数字计数器 */
        .counter {
            font-family: 'Orbitron', sans-serif;
            font-weight: 900;
            color: var(--primary-color);
        }
        
        /* 代码效果 */
        .code-effect {
            background: rgba(0, 0, 0, 0.3);
            padding: 20px;
            border-radius: 10px;
            border-left: 4px solid var(--primary-color);
            font-family: 'Share Tech Mono', monospace;
            color: var(--text-secondary);
            margin: 20px 0;
            overflow-x: auto;
        }
        
        /* 数据可视化 */
        .data-viz {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            margin-top: 40px;
        }
        
        .viz-item {
            text-align: center;
            padding: 20px;
        }
        
        .viz-circle {
            width: 150px;
            height: 150px;
            border-radius: 50%;
            background: conic-gradient(var(--primary-color) 0% 75%, rgba(0, 243, 255, 0.1) 75% 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            position: relative;
            box-shadow: 0 0 30px rgba(0, 243, 255, 0.2);
        }
        
        .viz-circle::before {
            content: '';
            position: absolute;
            width: 120px;
            height: 120px;
            background: var(--dark-bg);
            border-radius: 50%;
        }
        
        .viz-percent {
            position: relative;
            z-index: 1;
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--primary-color);
            font-family: 'Orbitron', sans-serif;
        }