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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
}

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

header {
    text-align: center;
    padding: 40px 0;
    color: white;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

.search-box {
    max-width: 600px;
    margin: 0 auto 30px;
}

.search-box input {
    width: 100%;
    padding: 15px 25px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    outline: none;
}

.filter-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 30px;
}

.filter-tag {
    padding: 8px 20px;
    background: rgba(255,255,255,0.2);
    color: white;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 0.9rem;
}

.filter-tag:hover,
.filter-tag.active {
    background: white;
    color: #667eea;
}

.software-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
}

.software-card {
    background: white;
    border-radius: 16px;
    padding: 25px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.software-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.software-icon {
    width: 80px;
    height: 80px;
    border-radius: 16px;
    object-fit: cover;
    margin-bottom: 15px;
    background: #f5f5f5;
}

.software-icon-placeholder {
    width: 80px;
    height: 80px;
    border-radius: 16px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 15px;
}

.software-name {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 5px;
    color: #333;
}

.software-name a {
    color: inherit;
    text-decoration: none;
}

.software-name a:hover {
    color: #667eea;
}

.software-version {
    color: #888;
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.software-category {
    display: inline-block;
    padding: 4px 12px;
    background: #f0f0f0;
    border-radius: 12px;
    font-size: 0.8rem;
    color: #666;
    margin-bottom: 10px;
}

.software-keywords {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 10px;
}

.software-keyword {
    display: inline-block;
    padding: 3px 10px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 10px;
    font-size: 0.75rem;
    color: white;
}

.software-desc {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.software-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    font-size: 0.85rem;
    color: #888;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
    font-size: 0.95rem;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.btn-secondary {
    background: #f0f0f0;
    color: #666;
}

.btn-secondary:hover {
    background: #e0e0e0;
}

.btn-group {
    display: flex;
    gap: 10px;
}

/* 详情页样式 */
.detail-container {
    max-width: 800px;
    margin: 0 auto;
}

.detail-card {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
}

.detail-header {
    display: flex;
    gap: 30px;
    margin-bottom: 30px;
}

.detail-icon {
    width: 120px;
    height: 120px;
    border-radius: 20px;
    object-fit: cover;
    flex-shrink: 0;
    background: #f5f5f5;
}

.detail-icon-placeholder {
    width: 120px;
    height: 120px;
    border-radius: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
    font-weight: bold;
    flex-shrink: 0;
}

.detail-info h1 {
    font-size: 2rem;
    margin-bottom: 10px;
}

.detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 20px;
}

.detail-meta span {
    padding: 5px 15px;
    background: #f5f5f5;
    border-radius: 20px;
    font-size: 0.9rem;
    color: #666;
}

.detail-description {
    color: #555;
    line-height: 1.8;
    font-size: 1rem;
    margin-bottom: 30px;
    white-space: pre-wrap;
}

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

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: white;
    text-decoration: none;
    margin-bottom: 20px;
    font-size: 1rem;
    opacity: 0.9;
}

.back-link:hover {
    opacity: 1;
}

footer {
    text-align: center;
    padding: 40px 0;
    color: white;
    opacity: 0.8;
    font-size: 0.9rem;
}

.hidden {
    display: none !important;
}

@media (max-width: 600px) {
    header h1 {
        font-size: 1.8rem;
    }
    
    .detail-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .detail-card {
        padding: 25px;
    }
    
    .software-grid {
        grid-template-columns: 1fr;
    }
}