/* 功能推荐弹窗样式 */

.feature-recommendation-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.feature-recommendation-popup.show {
    opacity: 1;
    visibility: visible;
}

.feature-recommendation-popup.closing {
    opacity: 0;
    transform: scale(0.9);
}

.popup-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.popup-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    max-width: 480px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    transition: transform 0.3s ease;
}

.feature-recommendation-popup.show .popup-content {
    transform: translate(-50%, -50%) scale(1);
}

.popup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 24px 16px;
    border-bottom: 1px solid #f0f0f0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.popup-header h3 {
    margin: 0;
    font-size: 20px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.popup-header .fas.fa-magic {
    animation: sparkle 2s infinite;
}

@keyframes sparkle {
    0%, 100% { transform: rotate(0deg) scale(1); }
    25% { transform: rotate(-5deg) scale(1.1); }
    75% { transform: rotate(5deg) scale(1.1); }
}

.close-btn {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: background-color 0.2s ease;
    font-size: 16px;
}

.close-btn:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.popup-body {
    padding: 24px;
}

.feature-card {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.feature-icon {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.feature-info {
    flex: 1;
}

.feature-name {
    margin: 0 0 8px;
    font-size: 20px;
    font-weight: 600;
    color: #2d3748;
}

.feature-description {
    margin: 0 0 16px;
    color: #4a5568;
    line-height: 1.6;
    font-size: 14px;
}

.feature-meta {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.feature-category {
    display: inline-block;
    background: #edf2f7;
    color: #4a5568;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    width: fit-content;
}

.recommendation-reason {
    color: #718096;
    font-size: 13px;
    font-style: italic;
}

.popup-footer {
    display: flex;
    gap: 12px;
    padding: 16px 24px 24px;
    justify-content: flex-end;
}

.popup-footer .btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.popup-footer .btn-secondary {
    background: #f7fafc;
    color: #4a5568;
    border: 1px solid #e2e8f0;
}

.popup-footer .btn-secondary:hover {
    background: #edf2f7;
    transform: translateY(-1px);
}

.popup-footer .btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.popup-footer .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.popup-tips {
    padding: 12px 24px;
    background: #f7fafc;
    border-top: 1px solid #e2e8f0;
    text-align: center;
}

.popup-tips small {
    color: #718096;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .popup-content {
        max-width: 95%;
        margin: 20px;
    }
    
    .feature-card {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }
    
    .feature-icon {
        align-self: center;
    }
    
    .popup-footer {
        flex-direction: column;
        gap: 8px;
    }
    
    .popup-footer .btn {
        width: 100%;
        justify-content: center;
    }
    
    .popup-header {
        padding: 20px 16px 16px;
    }
    
    .popup-body {
        padding: 20px 16px;
    }
    
    .popup-footer {
        padding: 16px;
    }
}

/* 深色主题适配 */
.dark-theme .feature-recommendation-popup .popup-content {
    background: #2d3748;
    color: #e2e8f0;
}

.dark-theme .popup-header {
    border-bottom-color: #4a5568;
}

.dark-theme .feature-name {
    color: #e2e8f0;
}

.dark-theme .feature-description {
    color: #a0aec0;
}

.dark-theme .feature-category {
    background: #4a5568;
    color: #e2e8f0;
}

.dark-theme .recommendation-reason {
    color: #718096;
}

.dark-theme .popup-footer .btn-secondary {
    background: #4a5568;
    color: #e2e8f0;
    border-color: #718096;
}

.dark-theme .popup-footer .btn-secondary:hover {
    background: #718096;
}

.dark-theme .popup-tips {
    background: #4a5568;
    border-top-color: #718096;
}

.dark-theme .popup-tips small {
    color: #a0aec0;
}

/* 加载动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translate(-50%, -40%) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

.feature-recommendation-popup.show .popup-content {
    animation: fadeInUp 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* 功能发现页面样式 */
.feature-discovery-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.feature-item {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.feature-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.feature-item .feature-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.feature-item .feature-icon {
    width: 48px;
    height: 48px;
    font-size: 20px;
}

.feature-item .feature-title {
    font-size: 18px;
    font-weight: 600;
    color: #2d3748;
    margin: 0;
}

.feature-item .feature-description {
    color: #4a5568;
    line-height: 1.6;
    margin-bottom: 16px;
}

.feature-item .feature-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.feature-item .feature-category {
    background: #edf2f7;
    color: #4a5568;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
}

.feature-item .feature-action {
    background: #667eea;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s ease;
    text-decoration: none;
    font-size: 14px;
}

.feature-item .feature-action:hover {
    background: #5a67d8;
    color: white;
    text-decoration: none;
}

/* 筛选器样式 */
.feature-filters {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.filter-group label {
    font-size: 14px;
    font-weight: 500;
    color: #4a5568;
}

.filter-group select,
.filter-group input {
    padding: 8px 12px;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    background: white;
}

/* 统计信息样式 */
.recommendation-stats {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.stat-item {
    text-align: center;
    padding: 16px;
    background: #f7fafc;
    border-radius: 8px;
}

.stat-value {
    font-size: 24px;
    font-weight: 700;
    color: #667eea;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 14px;
    color: #4a5568;
}