/* AI 对话展示区域样式 */

.ai-chat-section {
    padding: var(--spacing-4xl) 0;
    background: var(--bg-gradient);
    position: relative;
    overflow: hidden;
}

.ai-chat-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.05) 0%, rgba(168, 85, 247, 0.05) 100%);
    pointer-events: none;
}

.chat-demo {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    margin-top: var(--spacing-3xl);
}

.chat-container {
    background: var(--bg-primary);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
    max-height: 500px;
    overflow-y: auto;
}

.chat-message {
    display: flex;
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.5s ease-out;
}

.chat-message:last-child {
    margin-bottom: 0;
}

.user-message {
    justify-content: flex-end;
}

.ai-message {
    justify-content: flex-start;
}

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 var(--spacing-md);
    flex-shrink: 0;
}

.user-message .message-avatar {
    background: var(--gradient-primary);
    color: var(--text-white);
}

.ai-message .message-avatar {
    background: var(--gradient-secondary);
    overflow: hidden;
}

.ai-avatar {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.message-content {
    max-width: 70%;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    position: relative;
}

.user-message .message-content {
    background: var(--gradient-primary);
    color: var(--text-white);
    border-bottom-right-radius: var(--radius-sm);
}

.ai-message .message-content {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-bottom-left-radius: var(--radius-sm);
}

.message-content p {
    margin: 0;
    line-height: 1.5;
}

.chat-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
}

.feature-item {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.feature-item h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.feature-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .chat-demo {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .chat-container {
        max-height: 400px;
    }
}

@media (max-width: 768px) {
    .ai-chat-section {
        padding: var(--spacing-3xl) 0;
    }
    
    .chat-container {
        padding: var(--spacing-lg);
        max-height: 350px;
    }
    
    .message-content {
        max-width: 85%;
    }
    
    .chat-features {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .chat-container {
        padding: var(--spacing-md);
        max-height: 300px;
    }
    
    .message-content {
        max-width: 90%;
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .feature-item {
        padding: var(--spacing-md);
    }
    
    .feature-item i {
        font-size: 2rem;
    }
}