/* 首页样式 - 软件列表展示 */
:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --text-primary: #333;
    --text-secondary: #666;
    --text-light: #999;
    --bg-primary: #ffffff;
    --bg-secondary: #f5f7fa;
    --border-color: #e0e0e0;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-hover: 0 8px 24px rgba(102, 126, 234, 0.2);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-secondary);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 */
.navbar {
    background: var(--bg-primary);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 20px 0;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 28px;
    color: var(--primary-color);
    margin: 0;
    font-weight: 700;
}

.logo img {
    max-height: 40px;
}

/* 软件列表区域 */
.software-list-section {
    padding: 60px 0;
    min-height: calc(100vh - 200px);
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
}

/* 软件网格 */
.software-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
    margin-top: 32px;
}

/* 软件卡片 */
.software-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.software-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.software-card-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.software-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.software-placeholder {
    font-size: 64px;
    color: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border-radius: var(--border-radius);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.software-card:hover .software-placeholder {
    transform: scale(1.05);
}

.software-card-content {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.software-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.software-subtitle {
    font-size: 16px;
    color: var(--primary-color);
    margin-bottom: 12px;
    font-weight: 500;
}

.software-description {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.software-version {
    font-size: 12px;
    color: var(--text-light);
    padding: 6px 12px;
    background: var(--bg-secondary);
    border-radius: 6px;
    display: inline-block;
    margin-bottom: 16px;
}

.software-card-actions {
    padding: 0 24px 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    text-align: center;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 14px;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.btn-detail {
    background: var(--primary-color);
    color: white;
}

.btn-detail:hover {
    background: #5568d3;
}

.btn-download {
    background: #10b981;
    color: white;
}

.btn-download:hover {
    background: #059669;
}

.btn-shop {
    background: #f59e0b;
    color: white;
}

.btn-shop:hover {
    background: #d97706;
}

/* 加载状态 */
.loading {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
    font-size: 16px;
    grid-column: 1 / -1;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
    font-size: 18px;
    grid-column: 1 / -1;
}

/* 页脚 */
.footer {
    background: var(--bg-primary);
    padding: 32px 0;
    text-align: center;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
    margin-top: 60px;
}

.footer p {
    margin: 0;
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .software-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .section-subtitle {
        font-size: 16px;
    }
    
    .software-card-image {
        height: 160px;
    }
    
    .software-card-content {
        padding: 20px;
    }
    
    .software-card-actions {
        padding: 0 20px 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .software-list-section {
        padding: 40px 0;
    }
    
    .section-header {
        margin-bottom: 32px;
    }
    
    .section-title {
        font-size: 24px;
    }
}