/**
 * AI智能助手样式
 * 版本: 3.0
 * 最后更新: 2024-03-08
 */

/* === 基础变量 === */
:root {
    --ai-primary-color: #5b8be0;
    --ai-secondary-color: #76c2af;
    --ai-accent-color: #ff9d72;
    --ai-background-color: #ffffff;
    --ai-text-color: #333333;
    --ai-light-text: #666666;
    --ai-border-color: #e0e0e0;
    --ai-light-bg: #f5f7fa;
    --ai-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --ai-transition: 0.3s ease;
    --ai-border-radius: 12px;
    --ai-spacing-sm: 8px;
    --ai-spacing-md: 16px;
    --ai-spacing-lg: 24px;
    
    /* 暗色主题变量 */
    --ai-dark-bg: #2a2a2a;
    --ai-dark-card: #3a3a3a;
    --ai-dark-text: #f0f0f0;
    --ai-dark-border: #555555;
}

/* === AI助手容器 === */
#ai-assistant-root {
    position: fixed;
    z-index: 9999;
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    line-height: 1.5;
}

/* 右侧定位 */
#ai-assistant-root.right {
    right: var(--ai-spacing-md);
    bottom: var(--ai-spacing-md);
}

/* 左侧定位 */
#ai-assistant-root.left {
    left: var(--ai-spacing-md);
    bottom: var(--ai-spacing-md);
}

/* === AI助手按钮 === */
.ai-assistant-button {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--ai-primary-color);
    box-shadow: var(--ai-shadow);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform var(--ai-transition), background-color var(--ai-transition);
    position: relative;
    z-index: 10;
}

.ai-assistant-button:hover {
    transform: scale(1.1);
    background-color: #4a7ddb;
}

.ai-assistant-button img, .ai-assistant-button svg {
    width: 30px;
    height: 30px;
    color: white;
}

/* === AI助手面板 === */
.ai-assistant-panel {
    position: absolute;
    bottom: 70px;
    width: 360px;
    max-height: 600px;
    background-color: var(--ai-background-color);
    border-radius: var(--ai-border-radius);
    box-shadow: var(--ai-shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: transform var(--ai-transition), opacity var(--ai-transition), visibility var(--ai-transition);
    transform-origin: bottom right;
    opacity: 0;
    visibility: hidden;
    transform: scale(0.9);
}

/* 右侧面板定位 */
#ai-assistant-root.right .ai-assistant-panel {
    right: 0;
    transform-origin: bottom right;
}

/* 左侧面板定位 */
#ai-assistant-root.left .ai-assistant-panel {
    left: 0;
    transform-origin: bottom left;
}

/* 面板显示状态 */
.ai-assistant-panel.open {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
}

/* === 面板头部 === */
.ai-assistant-header {
    padding: var(--ai-spacing-md);
    background-color: var(--ai-primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top-left-radius: var(--ai-border-radius);
    border-top-right-radius: var(--ai-border-radius);
}

.ai-assistant-title {
    font-weight: 600;
    font-size: 16px;
    display: flex;
    align-items: center;
    gap: var(--ai-spacing-sm);
}

.ai-assistant-settings-icon {
    width: 18px;
    height: 18px;
    margin-left: var(--ai-spacing-sm);
    cursor: pointer;
    opacity: 0.7;
    transition: opacity var(--ai-transition);
}

.ai-assistant-settings-icon:hover {
    opacity: 1;
}

.ai-assistant-close {
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    padding: 0;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    opacity: 0.7;
    transition: opacity var(--ai-transition);
}

.ai-assistant-close:hover {
    opacity: 1;
}

/* === 对话区域 === */
.ai-assistant-body {
    flex: 1;
    overflow-y: auto;
    padding: var(--ai-spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--ai-spacing-md);
    background-color: var(--ai-light-bg);
    position: relative;
    height: 400px;
}

/* 滚动条样式 */
.ai-assistant-body::-webkit-scrollbar {
    width: 6px;
}

.ai-assistant-body::-webkit-scrollbar-track {
    background: transparent;
}

.ai-assistant-body::-webkit-scrollbar-thumb {
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 3px;
}

/* === 消息气泡 === */
.ai-message {
    display: flex;
    flex-direction: column;
    max-width: 80%;
    animation: messageAppear 0.3s ease forwards;
    opacity: 0;
    transform: translateY(10px);
}

@keyframes messageAppear {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ai-message.user {
    align-self: flex-end;
}

.ai-message.ai {
    align-self: flex-start;
}

.ai-message-bubble {
    padding: var(--ai-spacing-md);
    border-radius: 18px;
    position: relative;
    word-break: break-word;
}

.ai-message.user .ai-message-bubble {
    background-color: var(--ai-primary-color);
    color: white;
    border-bottom-right-radius: 4px;
}

.ai-message.ai .ai-message-bubble {
    background-color: white;
    color: var(--ai-text-color);
    border: 1px solid var(--ai-border-color);
    border-bottom-left-radius: 4px;
}

.ai-message-time {
    font-size: 12px;
    color: var(--ai-light-text);
    margin-top: 4px;
    opacity: 0.7;
}

.ai-message.user .ai-message-time {
    text-align: right;
}

/* 打字机效果相关样式 */
.ai-message-bubble.typing::after {
    content: '|';
    display: inline-block;
    width: 8px;
    height: 1.2em;
    margin-left: 2px;
    animation: cursor-blink 1s step-end infinite;
}

@keyframes cursor-blink {
    from, to { opacity: 1; }
    50% { opacity: 0; }
}

/* 流式响应中的文本渐入动画 */
@keyframes fadeInChar {
    from { opacity: 0; }
    to { opacity: 1; }
}

.ai-message-bubble .new-char {
    animation: fadeInChar 0.1s ease-in-out;
}

/* 提升响应提示样式 */
.ai-response-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6px 0;
    background-color: rgba(200, 200, 200, 0.1);
    border-radius: 10px;
    margin: 10px 0;
    color: #888;
    font-style: italic;
    position: relative;
}

.ai-response-indicator::before {
    content: '';
    width: 12px;
    height: 12px;
    background-color: #5b8be0;
    border-radius: 50%;
    margin-right: 10px;
    animation: pulse 1.5s infinite ease-in-out;
}

@keyframes pulse {
    0% { transform: scale(0.95); opacity: 0.7; }
    50% { transform: scale(1.05); opacity: 1; }
    100% { transform: scale(0.95); opacity: 0.7; }
}

/* === 输入区域 === */
.ai-assistant-footer {
    padding: var(--ai-spacing-md);
    border-top: 1px solid var(--ai-border-color);
    background-color: var(--ai-background-color);
}

/* 示例提示词 */
.ai-prompt-examples {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}

.ai-prompt-example {
    background-color: var(--ai-light-bg);
    color: var(--ai-primary-color);
    padding: 6px 12px;
    border-radius: 16px;
    font-size: 12px;
    cursor: pointer;
    transition: all var(--ai-transition);
    border: 1px solid transparent;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 150px;
}

.ai-prompt-example:hover {
    background-color: var(--ai-primary-color);
    color: white;
    transform: translateY(-2px);
}

.ai-input-container {
    display: flex;
    align-items: center;
    gap: var(--ai-spacing-sm);
    position: relative;
}

.ai-assistant-input {
    flex: 1;
    padding: 12px;
    padding-right: 40px;
    border: 1px solid var(--ai-border-color);
    border-radius: 24px;
    font-size: 14px;
    outline: none;
    transition: border-color var(--ai-transition), box-shadow var(--ai-transition);
}

.ai-assistant-input:focus {
    border-color: var(--ai-primary-color);
    box-shadow: 0 0 0 2px rgba(91, 139, 224, 0.2);
}

.ai-assistant-send {
    position: absolute;
    right: 8px;
    background: none;
    border: none;
    color: var(--ai-primary-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    transition: transform var(--ai-transition), color var(--ai-transition);
}

.ai-assistant-send:hover {
    transform: scale(1.1);
    color: var(--ai-accent-color);
}

.ai-assistant-send svg {
    width: 20px;
    height: 20px;
}

/* === 设置面板 === */
.ai-assistant-settings {
    padding: var(--ai-spacing-md);
    background-color: var(--ai-background-color);
    border-top: 1px solid var(--ai-border-color);
    display: none;
}

.ai-assistant-settings.open {
    display: block;
}

.ai-assistant-settings-title {
    font-weight: 600;
    margin-bottom: var(--ai-spacing-md);
    font-size: 15px;
}

.ai-assistant-settings-row {
    margin-bottom: var(--ai-spacing-md);
}

.ai-assistant-settings-label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    color: var(--ai-light-text);
}

.ai-assistant-select, .ai-assistant-api-input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--ai-border-color);
    border-radius: 6px;
    font-size: 14px;
    background-color: var(--ai-background-color);
    color: var(--ai-text-color);
    transition: border-color var(--ai-transition);
}

.ai-assistant-select:focus, .ai-assistant-api-input:focus {
    outline: none;
    border-color: var(--ai-primary-color);
}

.ai-model-info {
    font-size: 12px;
    color: var(--ai-light-text);
    margin-top: var(--ai-spacing-sm);
}

/* 移除设置切换按钮 */
.ai-assistant-settings-toggle {
    display: none;
}

/* === 正在输入指示器 === */
.ai-typing {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background-color: var(--ai-light-bg);
    border-radius: 8px;
    max-width: 80px;
    align-self: flex-start;
}

.ai-typing-text {
    font-size: 12px;
    color: var(--ai-light-text);
}

.ai-typing-dots {
    display: flex;
    gap: 4px;
}

.ai-typing-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--ai-primary-color);
    opacity: 0.6;
    animation: typingDot 1.2s infinite ease-in-out;
}

.ai-typing-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.ai-typing-dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typingDot {
    0%, 100% { 
        transform: translateY(0);
        opacity: 0.6;
    }
    50% { 
        transform: translateY(-4px);
        opacity: 1;
    }
}

/* === 响应式样式 === */
@media (max-width: 480px) {
    .ai-assistant-panel {
        width: 100vw;
        left: 0;
        right: 0;
        bottom: 0;
        border-radius: 0;
        border-top-left-radius: var(--ai-border-radius);
        border-top-right-radius: var(--ai-border-radius);
        transform-origin: bottom center;
    }
    
    .ai-message {
        max-width: 90%;
    }
    
    .ai-assistant-button {
        bottom: var(--ai-spacing-md);
        right: var(--ai-spacing-md);
    }
    
    #ai-assistant-root.left .ai-assistant-button {
        left: var(--ai-spacing-md);
        right: auto;
    }
    
    .ai-prompt-examples {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 5px;
    }
    
    .ai-prompt-examples::-webkit-scrollbar {
        height: 3px;
    }
    
    .ai-prompt-examples::-webkit-scrollbar-thumb {
        background-color: rgba(91, 139, 224, 0.3);
        border-radius: 3px;
    }
}

.ai-assistant-clear-history {
  background-color: #ff4d4f;
  color: white;
  border: none;
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.3s ease;
  margin-top: 10px;
  width: 100%;
}

.ai-assistant-clear-history:hover {
  background-color: #ff7875;
}

.ai-assistant-clear-history:active {
  background-color: #d9363e;
}