* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf9 100%);
            color: #333;
            line-height: 1.6;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 导航栏 */
        nav {
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            padding: 15px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
        }
        
        .nav-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: center;
        }
        
        .logo img {
            height: 40px;
            margin-right: 10px;
        }
        
        .logo h1 {
            font-size: 1.5rem;
            color: #4a6cf7;
            font-weight: 600;
        }
        
        .nav-links {
            display: flex;
            gap: 30px;
        }
        
        .nav-links a {
            text-decoration: none;
            color: #555;
            font-weight: 500;
            transition: color 0.3s;
        }
        
        .nav-links a:hover {
            color: #4a6cf7;
        }
        
        /* 版块通用样式 */
        .section {
            padding: 80px 0;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }
        
        .section-title h2 {
            font-size: 2.5rem;
            color: #2c3e50;
            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: linear-gradient(90deg, #4a6cf7, #6a11cb);
            border-radius: 2px;
        }
        
        .section-title p {
            color: #7f8c8d;
            font-size: 1.1rem;
            max-width: 600px;
            margin: 20px auto 0;
        }
        
        /* 首屏板块 */
        .hero {
            padding: 100px 0;
            background: linear-gradient(135deg, #eef2ff 0%, #e4edf9 100%);
        }
        
        .hero-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 50px;
        }
        
        .hero-text {
            flex: 1;
        }
        
        .hero-text h1 {
            font-size: 3rem;
            color: #2c3e50;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        
        .hero-text p {
            font-size: 1.2rem;
            color: #7f8c8d;
            margin-bottom: 30px;
            max-width: 600px;
        }
        
        .download-btn {
            display: inline-block;
            background: linear-gradient(90deg, #4a6cf7, #6a11cb);
            color: white;
            padding: 15px 40px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            transition: transform 0.3s, box-shadow 0.3s;
            box-shadow: 0 10px 20px rgba(74, 108, 247, 0.3);
        }
        
        .download-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 25px rgba(74, 108, 247, 0.4);
        }
        
        .hero-image {
            flex: 1;
            display: flex;
            justify-content: center;
        }
        
        .hero-image img {
            max-width: 100%;
            height: auto;
            border-radius: 15px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            animation: float 6s ease-in-out infinite;
        }
        
        @keyframes float {
            0% { transform: translateY(0px); }
            50% { transform: translateY(-20px); }
            100% { transform: translateY(0px); }
        }
        
        /* 特色功能板块 */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 50px;
        }
        
        .feature-card {
            background: white;
            border-radius: 15px;
            padding: 30px;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(74, 108, 247, 0.15);
        }
        
        .feature-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, #eef2ff, #dbe4ff);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
        }
        
        .feature-icon i {
            font-size: 30px;
            color: #4a6cf7;
        }
        
        .feature-card h3 {
            font-size: 1.5rem;
            color: #2c3e50;
            margin-bottom: 15px;
        }
        
        /* 平台适配板块 */
        .platforms {
            background: white;
        }
        
        .platform-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 30px;
            margin-top: 50px;
        }
        
        .platform-item {
            text-align: center;
            padding: 30px 20px;
            border-radius: 15px;
            background: #f8fafc;
            transition: transform 0.3s;
        }
        
        .platform-item:hover {
            transform: scale(1.05);
        }
        
        .platform-icon {
            font-size: 40px;
            margin-bottom: 15px;
            color: #4a6cf7;
        }
        
        /* 用户评价板块 */
        .testimonials {
            background: linear-gradient(135deg, #eef2ff 0%, #e4edf9 100%);
        }
        
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 50px;
        }
        
        .testimonial-card {
            background: white;
            border-radius: 15px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
        }
        
        .testimonial-header {
            display: flex;
            align-items: center;
            margin-bottom: 20px;
        }
        
        .testimonial-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: #eef2ff;
            margin-right: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #4a6cf7;
            font-weight: bold;
        }
        
        .testimonial-info h4 {
            color: #2c3e50;
            margin-bottom: 5px;
        }
        
        .testimonial-info p {
            color: #7f8c8d;
            font-size: 0.9rem;
        }
        
        /* 同步服务板块 */
        .sync-services {
            background: white;
        }
        
        .sync-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-top: 50px;
        }
        
        .sync-card {
            background: linear-gradient(135deg, #eef2ff, #dbe4ff);
            border-radius: 15px;
            padding: 30px;
            text-align: center;
            transition: transform 0.3s;
        }
        
        .sync-card:hover {
            transform: translateY(-5px);
        }
        
        .sync-icon {
            font-size: 50px;
            color: #4a6cf7;
            margin-bottom: 20px;
        }
        
        /* 常见问题板块 */
        .faq {
            background: linear-gradient(135deg, #eef2ff 0%, #e4edf9 100%);
        }
        
        .faq-container {
            max-width: 800px;
            margin: 50px auto 0;
        }
        
        .faq-item {
            background: white;
            border-radius: 10px;
            margin-bottom: 15px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        
        .faq-question {
            padding: 20px;
            background: #f8fafc;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
        }
        
        .faq-answer.show {
            padding: 20px;
            max-height: 500px;
        }
        
        /* 页脚 */
        footer {
            background: #2c3e50;
            color: white;
            padding: 60px 0 30px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-section h3 {
            color: white;
            margin-bottom: 20px;
            font-size: 1.2rem;
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 10px;
        }
        
        .footer-links a {
            color: #bdc3c7;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-links a:hover {
            color: white;
        }
        
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #34495e;
            color: #bdc3c7;
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .hero-content {
                flex-direction: column;
            }
            
            .hero-text h1 {
                font-size: 2.2rem;
            }
            
            .section {
                padding: 60px 0;
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
            
            .nav-links {
                display: none;
            }
        }

/* Article pages */
.article-hero {
    padding: 80px 0 40px;
    background: linear-gradient(135deg, #eef2ff 0%, #e4edf9 100%);
}
.article-hero h1 {
    font-size: 2.4rem;
    color: #2c3e50;
    margin-bottom: 15px;
    line-height: 1.3;
}
.article-meta {
    color: #7f8c8d;
    font-size: 0.95rem;
    margin-bottom: 10px;
}
.article-body {
    background: white;
    border-radius: 15px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    max-width: 860px;
    margin: 0 auto;
}
.article-body h2 {
    color: #2c3e50;
    font-size: 1.5rem;
    margin: 32px 0 14px;
}
.article-body p {
    color: #555;
    margin-bottom: 16px;
    font-size: 1.05rem;
}
.article-body ul {
    margin: 0 0 18px 22px;
    color: #555;
}
.article-body li {
    margin-bottom: 8px;
}
.article-list-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}
.article-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}
.article-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(74, 108, 247, 0.15);
}
.article-card h3 {
    color: #2c3e50;
    margin-bottom: 12px;
    font-size: 1.3rem;
}
.article-card p {
    color: #7f8c8d;
    margin-bottom: 18px;
}
.article-card a {
    color: #4a6cf7;
    text-decoration: none;
    font-weight: 600;
}
.article-card a:hover { text-decoration: underline; }
.daily-badge {
    display: inline-block;
    background: #eef2ff;
    color: #4a6cf7;
    font-size: 0.85rem;
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 16px;
}
.nav-links a.active { color: #4a6cf7; }
.faq-answer.show { max-height: 2000px; }

/* Download page extras */
.download-hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #eef2ff 0%, #e4edf9 100%);
    text-align: center;
}
.download-content h1 {
    font-size: 2.8rem;
    color: #2c3e50;
    margin-bottom: 15px;
}
.download-content > p {
    color: #7f8c8d;
    font-size: 1.15rem;
    max-width: 700px;
    margin: 0 auto 40px;
}
.platform-selector {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}
.platform-btn {
    background: white;
    border: 2px solid #e0e6ff;
    padding: 12px 28px;
    border-radius: 50px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    color: #555;
    transition: all 0.3s;
}
.platform-btn:hover, .platform-btn.active {
    border-color: #4a6cf7;
    color: #4a6cf7;
    background: #eef2ff;
}
.download-cards {
    display: flex;
    justify-content: center;
    margin-top: 20px;
}
.download-card {
    background: white;
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
    max-width: 420px;
    width: 100%;
}
.download-card .platform-icon {
    font-size: 50px;
    margin-bottom: 20px;
}
.download-card h3 {
    color: #2c3e50;
    margin-bottom: 12px;
    font-size: 1.5rem;
}
.download-card p {
    color: #7f8c8d;
    margin-bottom: 8px;
}
.version-features { background: white; }
.features-grid .feature-item {
    background: #f8fafc;
    border-radius: 15px;
    padding: 30px;
    text-align: center;
}
.feature-item .feature-icon {
    font-size: 40px;
    margin-bottom: 15px;
}
.feature-item h3 {
    color: #2c3e50;
    margin-bottom: 12px;
}
.requirements {
    background: linear-gradient(135deg, #eef2ff 0%, #e4edf9 100%);
}
.req-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}
.req-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}
.req-card h3 {
    color: #2c3e50;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e0e6ff;
}
.req-list { list-style: none; }
.req-list li {
    padding: 10px 0;
    border-bottom: 1px solid #eee;
    display: flex;
    align-items: center;
}
.req-list li:last-child { border-bottom: none; }
.req-list li::before {
    content: '✓';
    color: #4a6cf7;
    margin-right: 10px;
    font-weight: bold;
}