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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: #333;
    background: #f8f9fa;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 120px 20px 80px;
    color: #fff;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-content {
    flex: 1;
}

.hero-title {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.9;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.btn-hero-primary, .btn-hero-secondary {
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.3s;
    display: inline-block;
}

.btn-hero-primary {
    background: #fff;
    color: #667eea;
}

.btn-hero-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255,255,255,0.3);
}

.btn-hero-secondary {
    background: rgba(255,255,255,0.2);
    color: #fff;
    border: 2px solid #fff;
}

.btn-hero-secondary:hover {
    background: rgba(255,255,255,0.3);
    transform: translateY(-2px);
}

.hero-image {
    flex: 1;
    max-width: 500px;
}

.hero-image svg {
    width: 100%;
    height: auto;
}

/* Features Section */
.features-section {
    padding: 80px 20px;
    background: #fff;
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    font-size: 36px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 15px;
    color: #333;
}

.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: #666;
    margin-bottom: 50px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-card {
    text-align: center;
    padding: 30px 20px;
    border-radius: 12px;
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.feature-icon i {
    font-size: 40px;
    color: #fff;
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #333;
}

.feature-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* Products Section */
.products-section {
    padding: 80px 20px;
    background: #f8f9fa;
}

.versions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.version-card-home {
    background: #fff;
    border-radius: 12px;
    padding: 30px 25px;
    text-align: center;
    transition: all 0.3s;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    border: 2px solid #e8e8e8;
}

.version-card-home:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.15);
    border-color: #667eea;
}

.version-card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
}

.version-card-icon img {
    width: 100%;
    height: 100%;
    border-radius: 12px;
    object-fit: cover;
}

.version-card-home h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #333;
    font-weight: 600;
}

.version-name {
    font-size: 22px;
    font-weight: bold;
    color: #667eea;
    margin-bottom: 15px;
}

.version-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 20px;
    min-height: 40px;
}

.version-price {
    font-size: 32px;
    font-weight: bold;
    color: #ff6600;
    margin-bottom: 20px;
}

.version-btn {
    display: block;
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    text-align: center;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s;
}

.version-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102,126,234,0.4);
    color: #fff;
}

.view-more {
    text-align: center;
}

.btn-view-more {
    display: inline-block;
    padding: 12px 32px;
    font-size: 16px;
    font-weight: 600;
    color: #667eea;
    text-decoration: none;
    border: 2px solid #667eea;
    border-radius: 8px;
    transition: all 0.3s;
}

.btn-view-more:hover {
    background: #667eea;
    color: #fff;
    transform: translateY(-2px);
}

/* CTA Section */
.cta-section {
    padding: 80px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    text-align: center;
    color: #fff;
}

.cta-container h2 {
    font-size: 36px;
    margin-bottom: 15px;
}

.cta-container p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.btn-cta {
    display: inline-block;
    padding: 16px 48px;
    background: #fff;
    color: #667eea;
    font-size: 18px;
    font-weight: bold;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s;
}

.btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(255,255,255,0.3);
}

/* ICP Footer */
.icp-footer {
    padding: 30px 20px;
    text-align: center;
    background: #fff;
    color: #666;
    font-size: 14px;
    border-top: 1px solid #e8e8e8;
}

.icp-footer a {
    color: #667eea;
    text-decoration: none;
}

.icp-footer a:hover {
    text-decoration: underline;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-image {
        order: -1;
        max-width: 400px;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .versions-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero-section {
        padding: 100px 20px 60px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .versions-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-container h2 {
        font-size: 28px;
    }
}