/* AI助理样式修复 */

/* AI助理区域 */
.ai-assistant {
    padding: var(--space-3xl) 0;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    position: relative;
    overflow: hidden;
}

.ai-assistant::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 0;
}

.ai-assistant .container {
    position: relative;
    z-index: 1;
}

.ai-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
    margin-top: var(--space-xl);
}

/* AI聊天演示 */
.ai-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.ai-chat-demo {
    width: 100%;
    max-width: 400px;
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
    border: 1px solid var(--gray-light);
    transition: transform var(--transition-normal);
}

.ai-chat-demo:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.15);
}

.chat-header {
    background: var(--primary-gradient);
    color: var(--white);
    padding: var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 600;
    font-size: 1.125rem;
}

.chat-header i {
    font-size: 1.25rem;
}

.chat-messages {
    padding: var(--space-md);
    height: 280px;
    overflow-y: auto;
    background: var(--light-color);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.message {
    max-width: 80%;
    padding: var(--space-sm);
    border-radius: var(--radius-lg);
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.user {
    align-self: flex-end;
    background: var(--primary-color);
    color: var(--white);
    border-bottom-right-radius: var(--radius-sm);
}

.message.ai {
    align-self: flex-start;
    background: var(--white);
    color: var(--dark-color);
    border: 1px solid var(--gray-light);
    border-bottom-left-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
}

.message-content {
    font-size: 0.875rem;
    line-height: 1.5;
}

.chat-input {
    display: flex;
    padding: var(--space-md);
    background: var(--white);
    border-top: 1px solid var(--gray-light);
}

.chat-input input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid var(--gray-light);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    transition: border-color var(--transition-normal);
}

.chat-input input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.chat-input button {
    margin-left: var(--space-sm);
    width: 44px;
    height: 44px;
    background: var(--primary-gradient);
    color: var(--white);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-input button:hover {
    background: var(--primary-dark);
    transform: scale(1.05);
}

/* AI信息区域 */
.ai-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.ai-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark-color);
    line-height: 1.2;
}

.ai-description {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--gray-dark);
    margin-bottom: var(--space-md);
}

.ai-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.ai-feature {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-light);
    transition: all var(--transition-normal);
}

.ai-feature:hover {
    transform: translateX(5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.ai-feature i {
    width: 48px;
    height: 48px;
    background: var(--primary-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.ai-feature div {
    flex: 1;
}

.ai-feature h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.25rem;
}

.ai-feature p {
    font-size: 0.875rem;
    color: var(--gray-medium);
    line-height: 1.5;
}

.ai-cta {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin-top: var(--space-md);
}

.ai-cta .btn {
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
}

.ai-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .ai-content {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .ai-visual {
        order: 2;
    }
    
    .ai-info {
        order: 1;
        text-align: center;
    }
    
    .ai-feature {
        text-align: left;
    }
    
    .ai-cta {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .ai-title {
        font-size: 1.75rem;
    }
    
    .ai-description {
        font-size: 1rem;
    }
    
    .ai-chat-demo {
        max-width: 100%;
    }
    
    .chat-messages {
        height: 240px;
    }
    
    .ai-feature {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }
    
    .ai-feature i {
        margin-bottom: var(--space-sm);
    }
    
    .ai-cta {
        flex-direction: column;
        gap: var(--space-md);
    }
}

@media (max-width: 480px) {
    .ai-assistant {
        padding: var(--space-2xl) 0;
    }
    
    .ai-title {
        font-size: 1.5rem;
    }
    
    .message {
        max-width: 90%;
    }
    
    .chat-input {
        flex-direction: column;
        gap: var(--space-sm);
    }
    
    .chat-input button {
        width: 100%;
        margin-left: 0;
    }
}