* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }
        
        :root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --secondary: #0ea5e9;
            --accent: #8b5cf6;
            --dark: #0f172a;
            --light: #f8fafc;
            --gray: #64748b;
            --success: #10b981;
            --warning: #f59e0b;
        }
        
        body {
            background: linear-gradient(135deg, #0f172a, #1e293b);
            color: var(--light);
            min-height: 100vh;
            overflow-x: hidden;
            position: relative;
        }
        
        /* 粒子背景效果 */
        #particles-js {
            position: absolute;
            width: 100%;
            height: 100%;
            top: 0;
            left: 0;
            z-index: 0;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 2rem;
            position: relative;
            z-index: 10;
        }
        
        /* 头部样式 */
        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.5rem 0;
            margin-bottom: 3rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        .logo-container {
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        
        .tech-logo {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 16px;
            position: relative;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(37, 99, 235, 0.4);
        }
        
        .tech-logo::before {
            content: '';
            position: absolute;
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            top: -10px;
            left: -10px;
        }
        
        .tech-logo::after {
            content: '';
            position: absolute;
            width: 30px;
            height: 30px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 50%;
            bottom: -10px;
            right: -10px;
        }
        
        .logo-text {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(to right, var(--secondary), var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        
        .logo-text .cn {
            color: #fff;
            background: #d40000;
            padding: 0 6px;
            border-radius: 4px;
            margin-left: 4px;
            font-size: 1.8rem;
            vertical-align: middle;
        }
        
        /* 主标题区域 */
        .hero {
            text-align: center;
            margin: 3rem 0;
            padding: 2rem;
            position: relative;
        }
        
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(59, 130, 246, 0.2) 0%, rgba(59, 130, 246, 0) 70%);
            z-index: -1;
        }
        
        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            background: linear-gradient(to right, #e0f2fe, #bae6fd, #7dd3fc);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            max-width: 900px;
            margin-left: auto;
            margin-right: auto;
        }
        
        .hero p {
            font-size: 1.5rem;
            color: #cbd5e1;
            max-width: 800px;
            margin: 0 auto 2.5rem;
            line-height: 1.6;
        }
        
        .highlight {
            color: var(--secondary);
            font-weight: 600;
        }
        
        /* 服务卡片样式 */
        .services {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 2rem;
            margin: 4rem 0;
        }
        
        .service-card {
            background: rgba(30, 41, 59, 0.7);
            border-radius: 20px;
            padding: 2.5rem;
            border: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
            border-color: rgba(59, 130, 246, 0.3);
        }
        
        .service-card:nth-child(1) {
            background: linear-gradient(135deg, rgba(30, 41, 59, 0.7), rgba(15, 23, 42, 0.9));
        }
        
        .service-card:nth-child(2) {
            background: linear-gradient(135deg, rgba(30, 41, 59, 0.7), rgba(15, 23, 42, 0.9));
        }
        
        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(to right, var(--primary), var(--accent));
        }
        
        .card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1.5rem;
        }
        
        .card-icon {
            width: 60px;
            height: 60px;
            background: rgba(37, 99, 235, 0.2);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: var(--primary);
        }
        
        .card-title {
            font-size: 1.8rem;
            margin-bottom: 0.5rem;
        }
        
        .price {
            font-size: 2.5rem;
            font-weight: 700;
            margin: 1rem 0;
            background: linear-gradient(to right, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        
        .original-price {
            text-decoration: line-through;
            color: var(--gray);
            font-size: 1.2rem;
            margin-bottom: 0.5rem;
        }
        
        .benefits {
            list-style: none;
            margin: 1.5rem 0;
        }
        
        .benefits li {
            padding: 0.5rem 0;
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        
        .benefits li i {
            color: var(--success);
            font-size: 1.2rem;
        }
        
        .btn {
            display: inline-block;
            padding: 0.8rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            text-align: center;
            text-decoration: none;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
            font-size: 1rem;
            width: 100%;
            margin-top: 1rem;
        }
        
        .btn-primary {
            background: linear-gradient(to right, var(--primary), var(--secondary));
            color: white;
            box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
        }
        
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(37, 99, 235, 0.6);
        }
        
        /* 承诺部分 */
        .promise {
            background: rgba(15, 23, 42, 0.8);
            border-radius: 20px;
            padding: 2.5rem;
            margin: 4rem 0;
            border: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .promise::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at top left, rgba(139, 92, 246, 0.1), transparent 60%);
            z-index: -1;
        }
        
        .promise h2 {
            font-size: 2rem;
            margin-bottom: 1.5rem;
            color: var(--secondary);
        }
        
        .promise p {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto;
            line-height: 1.7;
            color: #cbd5e1;
        }
        
        .guarantee {
            display: inline-flex;
            align-items: center;
            gap: 0.8rem;
            margin-top: 1.5rem;
            padding: 0.8rem 1.5rem;
            background: rgba(16, 185, 129, 0.15);
            border-radius: 50px;
            color: var(--success);
            font-weight: 600;
        }
        
        /* 更多服务部分 */
        .more-services {
            text-align: center;
            margin: 4rem 0;
        }
        
        .more-services a {
            display: inline-flex;
            align-items: center;
            gap: 0.8rem;
            padding: 1rem 2rem;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50px;
            color: var(--light);
            text-decoration: none;
            font-size: 1.2rem;
            transition: all 0.3s ease;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        .more-services a:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--primary);
            transform: translateY(-3px);
        }
        
        /* 联系部分 */
        .contact {
            background: rgba(15, 23, 42, 0.8);
            border-radius: 20px;
            padding: 2.5rem;
            margin: 4rem 0;
            text-align: center;
        }
        
        .contact h2 {
            font-size: 2rem;
            margin-bottom: 2rem;
            color: var(--secondary);
        }
        
        .contact-methods {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 2rem;
            margin-top: 2rem;
        }
        
        .contact-card {
            background: rgba(30, 41, 59, 0.5);
            border-radius: 15px;
            padding: 1.5rem 2rem;
            min-width: 250px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all 0.3s ease;
        }
        
        .contact-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
        }
        
        .contact-icon {
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }
        
        .qq-icon {
            color: #12b7f4;
        }
        
        .wechat-icon {
            color: #2aac5e;
        }
        
        .email-icon {
            color: #ea4335;
        }
        
        .contact-detail {
            font-size: 1.2rem;
            font-weight: 500;
            margin: 0.5rem 0;
        }
        
        .contact-action {
            display: inline-block;
            margin-top: 1rem;
            padding: 0.5rem 1.5rem;
            background: rgba(37, 99, 235, 0.2);
            border-radius: 50px;
            color: var(--primary);
            text-decoration: none;
            font-size: 0.9rem;
            transition: all 0.3s ease;
        }
        
        .contact-action:hover {
            background: rgba(37, 99, 235, 0.3);
        }
        
        /* 页脚 */
        footer {
            text-align: center;
            padding: 2rem 0;
            margin-top: 3rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--gray);
            font-size: 0.9rem;
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.5rem;
            }
            
            .hero p {
                font-size: 1.2rem;
            }
            
            .services {
                grid-template-columns: 1fr;
            }
            
            .contact-methods {
                flex-direction: column;
                align-items: center;
            }
        }