* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        :root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --secondary: #7c3aed;
            --dark: #1e293b;
            --darker: #0f172a;
            --light: #f8fafc;
            --gray: #64748b;
            --success: #10b981;
            --gradient: linear-gradient(135deg, var(--primary), var(--secondary));
            --card-gradient: linear-gradient(135deg, #1e293b, #334155);
        }
        
        body {
            background-color: var(--darker);
            color: var(--light);
            line-height: 1.6;
            overflow-x: hidden;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 导航栏样式 */
        header {
            background: rgba(15, 23, 42, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
        }
        
        .logo {
            display: flex;
            align-items: center;
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--light);
        }
        
        .logo i {
            color: var(--primary);
            margin-right: 10px;
        }
        
        .nav-links {
            display: flex;
            list-style: none;
        }
        
        .nav-links li {
            margin-left: 30px;
        }
        
        .nav-links a {
            text-decoration: none;
            color: var(--light);
            font-weight: 500;
            transition: color 0.3s;
            position: relative;
        }
        
        .nav-links a:hover {
            color: var(--primary);
        }
        
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--gradient);
            transition: width 0.3s;
        }
        
        .nav-links a:hover::after {
            width: 100%;
        }
        
        .cta-button {
            background: var(--gradient);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        
        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(37, 99, 235, 0.3);
        }
        
        /* 英雄区域样式 */
        .hero {
            padding: 180px 0 100px;
            background: var(--darker);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at 30% 20%, rgba(37, 99, 235, 0.1) 0%, transparent 50%),
                        radial-gradient(circle at 70% 80%, rgba(124, 58, 237, 0.1) 0%, transparent 50%);
            z-index: 0;
        }
        
        .hero-content {
            position: relative;
            z-index: 1;
        }
        
        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 20px;
            line-height: 1.2;
            background: linear-gradient(to right, #fff, #93c5fd);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        .hero p {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto 30px;
            color: #cbd5e1;
        }
        
        .tech-badge {
            display: inline-block;
            background: rgba(37, 99, 235, 0.2);
            color: #93c5fd;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            margin: 0 5px 10px;
            border: 1px solid rgba(37, 99, 235, 0.3);
        }
        
        /* 技术栈区域样式 */
        .tech-stack {
            padding: 100px 0;
            background: var(--dark);
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }
        
        .section-title h2 {
            font-size: 2.5rem;
            color: var(--light);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }
        
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--gradient);
            border-radius: 2px;
        }
        
        .section-title p {
            color: #94a3b8;
            max-width: 600px;
            margin: 20px auto 0;
        }
        
        .tech-categories {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-bottom: 50px;
        }
        
        .tech-category {
            background: var(--card-gradient);
            border-radius: 15px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            transition: transform 0.3s, box-shadow 0.3s;
            border: 1px solid rgba(255, 255, 255, 0.05);
            position: relative;
            overflow: hidden;
        }
        
        .tech-category::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: var(--gradient);
        }
        
        .tech-category:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
        }
        
        .category-header {
            display: flex;
            align-items: center;
            margin-bottom: 25px;
        }
        
        .category-icon {
            width: 60px;
            height: 60px;
            background: var(--gradient);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
            color: white;
            font-size: 1.5rem;
        }

.category-title h3 {
    font-size: 1.5rem;
    margin-bottom: 5px;
    color: white;
}
        
        .category-title p {
            color: #94a3b8;
            font-size: 0.9rem;
        }
        
        .tech-items {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
            gap: 15px;
        }
        
        .tech-item {
            background: rgba(30, 41, 59, 0.7);
            border-radius: 10px;
            padding: 15px;
            text-align: center;
            transition: background 0.3s, transform 0.3s;
            border: 1px solid rgba(255, 255, 255, 0.05);
        }
        
        .tech-item:hover {
            background: rgba(37, 99, 235, 0.1);
            transform: translateY(-5px);
            border-color: rgba(37, 99, 235, 0.3);
        }
        
        .tech-icon {
            font-size: 2rem;
            margin-bottom: 10px;
            color: var(--primary);
        }
        
        .tech-name {
            font-size: 0.9rem;
            font-weight: 500;
            color:white;
        }
        
        /* 技术细节区域 */
        .tech-details {
            padding: 80px 0;
            background: var(--darker);
        }
        
        .detail-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 30px;
        }
        
        .detail-card {
            background: var(--card-gradient);
            border-radius: 15px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            border: 1px solid rgba(255, 255, 255, 0.05);
            transition: transform 0.3s;
        }
        
        .detail-card:hover {
            transform: translateY(-5px);
        }
        
        .detail-card h3 {
            font-size: 1.3rem;
            margin-bottom: 15px;
            color: var(--light);
            display: flex;
            align-items: center;
        }
        
        .detail-card h3 i {
            color: var(--primary);
            margin-right: 10px;
        }
        
        .detail-card p {
            color: #94a3b8;
            margin-bottom: 20px;
        }

.tech-list {
    list-style: none;
    color: white;
}
        
        .tech-list li {
            margin-bottom: 12px;
            display: flex;
            align-items: center;
        }
        
        .tech-list i {
            color: var(--success);
            margin-right: 10px;
            font-size: 0.9rem;
        }
        
        /* CTA区域样式 */
        .cta-section {
            padding: 100px 0;
            background: var(--gradient);
            color: white;
            text-align: center;
            border-radius: 20px;
            margin: 50px 0;
            position: relative;
            overflow: hidden;
        }
        
        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 100" fill="%23ffffff" opacity="0.05"><polygon points="1000,0 1000,100 0,100"></polygon></svg>');
            background-size: cover;
        }
        
        .cta-content {
            position: relative;
            z-index: 1;
        }
        
        .cta-section h2 {
            font-size: 2.5rem;
            margin-bottom: 20px;
        }
        
        .cta-section p {
            max-width: 600px;
            margin: 0 auto 30px;
            font-size: 1.1rem;
            opacity: 0.9;
        }
        
        .cta-section .cta-button {
            background: white;
            color: var(--primary);
        }
        
        /* 页脚样式 */
        footer {
            background: var(--darker);
            color: white;
            padding: 80px 0 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 50px;
        }
        
        .footer-column h3 {
            font-size: 1.3rem;
            margin-bottom: 25px;
            position: relative;
        }
        
        .footer-column h3::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -10px;
            width: 40px;
            height: 3px;
            background: var(--primary);
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 15px;
        }
        
        .footer-links a {
            color: #94a3b8;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-links a:hover {
            color: white;
        }
        
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            color: #64748b;
            font-size: 0.9rem;
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.5rem;
            }
            
            .nav-links {
                display: none;
            }
            
            .tech-categories, .detail-cards {
                grid-template-columns: 1fr;
            }
            
            .tech-items {
                grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
            }
        }