:root {
            --primary-bg: #0f111a;
            --accent-color: #00f0ff;
            --accent-hover: #00c4d1;
            --card-bg: rgba(25, 30, 45, 0.8);
            --text-light: #ffffff;
            --text-gray: #a0aec0;
            --border-color: #2d3748;
        }

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

        body {
            background: var(--primary-bg);
            color: var(--text-light);
            font-family: 'Roboto', sans-serif;
            line-height: 1.6;
            overflow-x: hidden;
            background-image:
                radial-gradient(circle at 10% 20%, rgba(0, 240, 255, 0.05) 0%, transparent 20%),
                radial-gradient(circle at 90% 80%, rgba(0, 240, 255, 0.05) 0%, transparent 20%);
        }

        /* 导航栏样式 */
        .navbar {
            background: rgba(15, 17, 26, 0.95);
            padding: 1rem 5%;
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid var(--border-color);
            backdrop-filter: blur(5px);
        }

        .logo {
            font-family: 'Orbitron', sans-serif;
            color: var(--text-light);
            font-size: 1.8rem;
            font-weight: 700;
            display: flex;
            align-items: center;
        }

        .logo span {
            color: var(--accent-color);
        }

        .nav-menu {
            display: flex;
            gap: 2.5rem;
        }

        .nav-menu a {
            color: var(--text-light);
            text-decoration: none;
            font-size: 1.1rem;
            font-weight: 500;
            transition: all 0.3s ease;
            position: relative;
            padding: 0.5rem 0;
        }

        .nav-menu a:hover {
            color: var(--accent-color);
        }

        .nav-menu a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-color);
            transition: width 0.3s ease;
        }

        .nav-menu a:hover::after {
            width: 100%;
        }

        .cta-button {
            padding: 0.8rem 1.5rem;
            background: transparent;
            border: 2px solid var(--accent-color);
            color: var(--accent-color);
            font-family: 'Orbitron', sans-serif;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
            border-radius: 4px;
        }

        .cta-button:hover {
            background: var(--accent-color);
            color: var(--primary-bg);
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
        }

        /* 焦点图卡片式设计 */
        .featured-section {
            padding: 8rem 5% 4rem;
            min-height: 30vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }

        .section-title {
            font-family: 'Orbitron', sans-serif;
            font-size: 2.8rem;
            margin-bottom: 1rem;
            background: linear-gradient(to right, var(--accent-color), #00d0ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .section-subtitle {
            color: var(--text-gray);
            font-size: 1.2rem;
            max-width: 600px;
            margin: 0 auto;
        }

        .cards-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 2rem;
            margin-top: 2rem;
        }

        .feature-card {
            background: var(--card-bg);
            border-radius: 12px;
            overflow: hidden;
            width: 320px;
            transition: all 0.4s ease;
            border: 1px solid var(--border-color);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        }

        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0, 240, 255, 0.2);
            border-color: var(--accent-color);
        }

        .card-image {
            height: 200px;
            width: 100%;
            overflow: hidden;
            position: relative;
        }

        .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .feature-card:hover .card-image img {
            transform: scale(1.05);
        }

        .card-badge {
            position: absolute;
            top: 15px;
            right: 15px;
            background: rgba(0, 240, 255, 0.2);
            color: var(--accent-color);
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            backdrop-filter: blur(5px);
        }

        .card-content {
            padding: 1.8rem;
        }

        .card-title {
            font-family: 'Orbitron', sans-serif;
            font-size: 1.4rem;
            margin-bottom: 1rem;
            color: var(--text-light);
        }

        .card-description {
            color: var(--text-gray);
            margin-bottom: 1.5rem;
            font-size: 1rem;
        }

        .card-stats {
            display: flex;
            justify-content: space-between;
            border-top: 1px solid var(--border-color);
            padding-top: 1.2rem;
            margin-top: 1.2rem;
        }

        .stat-item {
            text-align: center;
        }

        .stat-value {
            font-family: 'Orbitron', sans-serif;
            font-size: 1.4rem;
            color: var(--accent-color);
            margin-bottom: 0.2rem;
        }

        .stat-label {
            font-size: 0.85rem;
            color: var(--text-gray);
        }

        /* 核心优势部分 */
        .features-section {
            padding: 6rem 5%;
            background: linear-gradient(to bottom, rgba(15, 17, 26, 0.9), rgba(15, 17, 26, 1));
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        .feature-item {
            background: var(--card-bg);
            padding: 2.5rem;
            border-radius: 12px;
            text-align: center;
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }

        .feature-item:hover {
            transform: translateY(-5px);
            border-color: var(--accent-color);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
        }

        .feature-icon {
            font-size: 3rem;
            color: var(--accent-color);
            margin-bottom: 1.5rem;
        }

        .feature-title {
            font-family: 'Orbitron', sans-serif;
            font-size: 1.4rem;
            margin-bottom: 1rem;
            color: var(--text-light);
        }

        .feature-description {
            color: var(--text-gray);
        }

        /* 页脚样式 */
        footer {
            background: rgba(10, 12, 18, 0.95);
            padding: 4rem 5% 2rem;
            border-top: 1px solid var(--border-color);
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            max-width: 1200px;
            margin: 0 auto 3rem;
        }

        .footer-logo {
            font-family: 'Orbitron', sans-serif;
            font-size: 2rem;
            margin-bottom: 1rem;
        }

        .footer-logo span {
            color: var(--accent-color);
        }

        .footer-description {
            color: var(--text-gray);
            margin-bottom: 1.5rem;
            line-height: 1.7;
        }

        .social-links {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
            justify-content: center;
        }

        /* 单个社交链接 */
        .social-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 15px;
            border-radius: 30px;
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-light);
            text-decoration: none;
            transition: all 0.3s ease;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-light);
            transition: all 0.3s ease;
        }

        .social-links a:hover {
            background: var(--accent-color);
            color: var(--primary-bg);
            transform: translateY(-3px);
        }

        /* 社交图标 */
        .social-icon {
            width: 40px;
            height: 40px;
            
            object-fit: contain;
            transition: transform 0.3s ease;
        }

        /* 社交文字 */
        .social-text {
            font-size: 14px;
            font-weight: 500;
        }

        /* 悬停效果 */
        .social-link:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }

       

        /* 移动端适配 */
        @media (max-width: 768px) {
            .social-links {
                gap: 10px;
            }
            
            .social-link {
                padding: 6px 12px;
            }
            
            .social-icon {
                width: 20px;
                height: 20px;
            }
            
            .social-text {
                font-size: 12px;
            }
        }

        .footer-title {
            font-family: 'Orbitron', sans-serif;
            font-size: 1.2rem;
            margin-bottom: 1.5rem;
            color: var(--text-light);
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 0.8rem;
        }

        .footer-links a {
            color: var(--text-gray);
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .footer-links a:hover {
            color: var(--accent-color);
            padding-left: 5px;
        }

        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid var(--border-color);
            color: var(--text-gray);
            font-size: 0.9rem;
        }
        /* 社交媒体图标专属样式 */
        .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-light);
            transition: all 0.3s ease;
            margin: 0 0.5rem;
        }

        .social-links a:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }

        /* X(原Twitter) */
        .social-x:hover {
            background: #000000;
            color: white;
        }

        /* 小红书 */
        .social-redbook:hover {
            background: #FF2442;
            color: white;
        }

        /* 微博 */
        .social-weibo:hover {
            background: #E6162D;
            color: white;
        }

        /* B站 */
        .social-bilibili:hover {
            background: #FB7299;
            color: white;
        }

        /* 图标大小调整 */
        .social-links svg {
            width: 20px;
            height: 20px;
        }

        /* 响应式设计 */
        @media (max-width: 992px) {
            .nav-menu {
                gap: 1.5rem;
            }

            .section-title {
                font-size: 2.4rem;
            }
        }

        @media (max-width: 768px) {
            .navbar {
                flex-direction: column;
                padding: 1rem;
            }

            .nav-menu {
                margin-top: 1rem;
                flex-wrap: wrap;
                justify-content: center;
                gap: 1rem 1.5rem;
            }

            .featured-section {
                padding-top: 10rem;
            }

            .section-title {
                font-size: 2rem;
            }

            .cards-container {
                gap: 1.5rem;
            }

            .feature-card {
                width: 100%;
                max-width: 400px;
            }
        }

        @media (max-width: 480px) {
            .section-title {
                font-size: 1.8rem;
            }

            .section-subtitle {
                font-size: 1rem;
            }

            .cta-button {
                padding: 0.7rem 1.2rem;
                font-size: 0.9rem;
            }
        }