// ==UserScript==
// @name         Deepseek Chat 实时网页检索对话工具版
// @namespace    Monika_host
// @version      3.2.14
// @description  支持流式响应、历史记录、多服务API配置、模型选择、参数设置和全面的网页内容检索，增强Markdown渲染
// @author       Monika_host
// @match        *://*/*
// @grant        GM_getValue
// @grant        GM_setValue
// @grant        GM_xmlhttpRequest
// @grant        GM_registerMenuCommand
// @grant        GM_addStyle
// @connect      *
// @connect      cdn.jsdelivr.net
// @connect      dashscope.aliyuncs.com
// @connect      api.siliconflow.cn
// @license      MIT
// @resource     icon https://img.alicdn.com/imgextra/i2/O1CN01bYc1m81RrcSAyOjMu_!!6000000002165-54-tps-60-60.apng
// @resource     icon_backup https://cdn.jsdelivr.net/gh/simple-icons/simple-icons/icons/deepseek.svg
// @grant        GM_getResourceURL
// @icon         https://deepseek.com/favicon.ico
// ==/UserScript==

(function() {
    'use strict';

    // 加载Markdown渲染资源
    function loadMarkdownResources() {
        return new Promise((resolve) => {
            // 加载KaTeX（数学公式渲染）
            const katexScript = document.createElement('script');
            katexScript.src = 'https://cdn.jsdelivr.net/npm/katex@0.16.9/dist/katex.min.js';
            const katexCSS = document.createElement('link');
            katexCSS.rel = 'stylesheet';
            katexCSS.href = 'https://cdn.jsdelivr.net/npm/katex@0.16.9/dist/katex.min.css';
            
            katexScript.onload = () => {
                // 加载Highlight.js
                const hljsScript = document.createElement('script');
                hljsScript.src = 'https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/highlight.min.js';
                hljsScript.onload = () => {
                    // 加载Mermaid
                    const mermaidScript = document.createElement('script');
                    mermaidScript.src = 'https://cdn.jsdelivr.net/npm/mermaid@10.9.0/dist/mermaid.min.js';
                    mermaidScript.onload = () => {
                        // 更新Mermaid配置并添加错误处理
                        try {
                            if (typeof mermaid !== 'undefined') {
                                mermaid.initialize({
                                    startOnLoad: false,
                                    theme: 'dark',
                                    securityLevel: 'loose',
                                    flowchart: {
                                        curve: 'basis',
                                        useMaxWidth: false
                                    },
                                    sequence: {
                                        showSequenceNumbers: true
                                    },
                                    gantt: {
                                        axisFormat: '%Y-%m-%d'
                                    }
                                });
                            }
                        } catch (e) {
                            console.error('Mermaid初始化错误:', e);
                        }
                        resolve();
                    };
                    document.head.appendChild(mermaidScript);
                };
                document.head.appendChild(hljsScript);
            };
            
            document.head.appendChild(katexScript);
            document.head.appendChild(katexCSS);
        });
    }

    // 安全渲染数学公式函数 - 增强版，支持延迟渲染
    function renderMathFormula(formula, isBlock = false) {
        try {
            if (typeof katex !== 'undefined') {
                const options = {
                    displayMode: isBlock,
                    throwOnError: false,
                    strict: false,
                    output: 'html'
                };
                return katex.renderToString(formula.trim(), options);
            } else {
                // KaTeX尚未加载，返回占位符，稍后重新渲染
                const placeholderId = `math-placeholder-${Date.now()}-${Math.random().toString(36).substr(2, 9)}`;
                const placeholder = isBlock ? 
                    `<div class="latex-math-block" data-math-placeholder="${placeholderId}" data-formula="${encodeURIComponent(formula.trim())}" data-is-block="true">$$${formula.trim()}$$</div>` :
                    `<span class="latex-math-inline" data-math-placeholder="${placeholderId}" data-formula="${encodeURIComponent(formula.trim())}" data-is-block="false">$${formula.trim()}$</span>`;
                return placeholder;
            }
        } catch (error) {
            console.warn('KaTeX渲染错误:', error);
            // 如果KaTeX不可用或渲染失败，回退到原始LaTeX显示
            return isBlock ? `$$${formula.trim()}$$` : `$${formula.trim()}$`;
        }
    }

    // 重新渲染所有数学公式占位符
    function rerenderMathPlaceholders() {
        if (typeof katex === 'undefined') return;
        
        document.querySelectorAll('[data-math-placeholder]').forEach(element => {
            try {
                const formula = decodeURIComponent(element.getAttribute('data-formula'));
                const isBlock = element.getAttribute('data-is-block') === 'true';
                const options = {
                    displayMode: isBlock,
                    throwOnError: false,
                    strict: false,
                    output: 'html'
                };
                const rendered = katex.renderToString(formula.trim(), options);
                
                // 替换占位符为渲染后的公式
                const newElement = document.createElement(isBlock ? 'div' : 'span');
                newElement.className = element.className;
                newElement.innerHTML = rendered;
                
                element.parentNode.replaceChild(newElement, element);
            } catch (error) {
                console.warn('重新渲染数学公式失败:', error);
            }
        });
    }

    // 增强版Markdown渲染函数
    function renderMarkdown(content) {
        let output = content;

        // 1. 处理数学公式 - 使用KaTeX渲染
        output = output
            .replace(/\$\$(.*?)\$\$/gs, (match, formula) => {
                const rendered = renderMathFormula(formula, true);
                return `<div class="latex-math-block">${rendered}</div>`;
            })
            .replace(/\$(.*?)\$/gs, (match, formula) => {
                const rendered = renderMathFormula(formula, false);
                return `<span class="latex-math-inline">${rendered}</span>`;
            })
            // 处理 \(...\) 格式的行内公式
            .replace(/\\\(([\s\S]*?)\\\)/gs, (match, formula) => {
                const rendered = renderMathFormula(formula, false);
                return `<span class="latex-math-inline">${rendered}</span>`;
            })
            // 处理 \[...\] 格式的块级公式
            .replace(/\\\[([\s\S]*?)\\\]/gs, (match, formula) => {
                const rendered = renderMathFormula(formula, true);
                return `<div class="latex-math-block">${rendered}</div>`;
            });

        // 2. 处理表格 - 增强版
        output = output.replace(/(?:\|.*\|(?:\r?\n|\r))+/g, (table) => {
            const lines = table.trim().split('\n').filter(line => line.trim());
            if (lines.length < 2) return table; // 不是有效的表格

            // 检查是否有分隔线
            const hasSeparator = lines[1].includes('---') || lines[1].includes(':|') || lines[1].includes('|:');

            let headers = [];
            let body = [];

            if (hasSeparator && lines.length >= 2) {
                // 有表头和分隔线
                headers = lines[0].split('|').slice(1, -1).map(h => h.trim());
                body = lines.slice(2);
            } else {
                // 没有分隔线，第一行作为表头
                headers = lines[0].split('|').slice(1, -1).map(h => h.trim());
                body = lines.slice(1);
            }

            // 构建HTML表格
            let html = '<table class="ds-markdown-table">';

            // 表头
            html += '<thead><tr>';
            headers.forEach(header => {
                html += `<th>${header}</th>`;
            });
            html += '</tr></thead>';

            // 表格体
            if (body.length > 0) {
                html += '<tbody>';
                body.forEach(row => {
                    const cells = row.split('|').slice(1, -1).map(cell => cell.trim());
                    html += '<tr>';
                    cells.forEach(cell => {
                        html += `<td>${cell}</td>`;
                    });
                    html += '</tr>';
                });
                html += '</tbody>';
            }

            html += '</table>';
            return html;
        });

        // 3. 处理任务列表
        output = output.replace(/^\s*[-*+]\s+\[ \]\s+(.+)$/gm, '<li class="ds-task-item"><input type="checkbox"> $1</li>');
        output = output.replace(/^\s*[-*+]\s+\[x\]\s+(.+)$/gm, '<li class="ds-task-item"><input type="checkbox" checked> $1</li>');

        // 将任务列表项包装在ul中
        output = output.replace(/(<li class="ds-task-item">.*<\/li>)+/g, '<ul class="ds-task-list">$&</ul>');

        // 4. 处理普通列表
        output = output.replace(/^\s*[-*+]\s+(?!\[[ x]\])(.+)$/gm, '<li>$1</li>');
        output = output.replace(/^\s*\d+\.\s+(.+)$/gm, '<li>$1</li>');

        // 将普通列表项包装在ul或ol中
        output = output.replace(/(<li>(?!.*<input).*<\/li>)+/g, (match) => {
            const items = match.match(/<li>.*?<\/li>/g) || [];
            if (items.length > 0) {
                // 检查是否为有序列表
                const isOrdered = content.includes('\n1.') || content.includes('\n2.') || content.includes('\n3.');
                return isOrdered ? `<ol class="ds-ordered-list">${match}</ol>` : `<ul class="ds-unordered-list">${match}</ul>`;
            }
            return match;
        });

        // 5. 处理标题
        output = output.replace(/^#\s+(.+)$/gm, '<h1 class="ds-markdown-h1">$1</h1>');
        output = output.replace(/^##\s+(.+)$/gm, '<h2 class="ds-markdown-h2">$1</h2>');
        output = output.replace(/^###\s+(.+)$/gm, '<h3 class="ds-markdown-h3">$1</h3>');
        output = output.replace(/^####\s+(.+)$/gm, '<h4 class="ds-markdown-h4">$1</h4>');
        output = output.replace(/^#####\s+(.+)$/gm, '<h5 class="ds-markdown-h5">$1</h5>');
        output = output.replace(/^######\s+(.+)$/gm, '<h6 class="ds-markdown-h6">$1</h6>');

        // 6. 处理加粗和斜体
        output = output.replace(/\*\*\*(.*?)\*\*\*/g, '<strong><em>$1</em></strong>');
        output = output.replace(/\*\*(.*?)\*\*/g, '<strong>$1</strong>');
        output = output.replace(/\*(.*?)\*/g, '<em>$1</em>');

        // 7. 处理内联代码
        output = output.replace(/`([^`]+)`/g, '<code class="inline-code">$1</code>');

        // 8. 处理链接
        output = output.replace(/\[([^\]]+)\]\(([^)]+)\)/g, '<a href="$2" target="_blank">$1</a>');

        // 9. 处理块引用
        output = output.replace(/^>\s+(.+)$/gm, '<blockquote>$1</blockquote>');

        // 10. 处理水平线
        output = output.replace(/^---$/gm, '<hr>');
        output = output.replace(/^\*\*\*$/gm, '<hr>');
        output = output.replace(/^___$/gm, '<hr>');

        // 11. 处理换行（两个空格或反斜杠）
        output = output.replace(/  \n/g, '<br>');
        output = output.replace(/\\\n/g, '<br>');

        return output;
    }

    // 渲染代码高亮
    function renderCodeHighlight(element) {
        if (typeof hljs !== 'undefined') {
            element.querySelectorAll('pre code').forEach(block => {
                try {
                    hljs.highlightElement(block);
                } catch (e) {
                    console.warn('代码高亮错误:', e);
                }
            });
        }
    }

    // 渲染Mermaid图表
    function renderMermaidDiagrams(element) {
        if (typeof mermaid !== 'undefined') {
            element.querySelectorAll('.ds-mermaid').forEach(el => {
                try {
                    if (!el.hasAttribute('data-rendered')) {
                        const code = el.textContent.trim();
                        if (code) {
                            mermaid.render('mermaid-' + Date.now(), code, (svgCode) => {
                                el.innerHTML = svgCode;
                            });
                            el.setAttribute('data-rendered', 'true');
                        }
                    }
                } catch (e) {
                    console.error('Mermaid渲染错误:', e);
                    el.innerHTML = `<div class="mermaid-error">图表渲染失败: ${e.message}</div>`;
                    el.setAttribute('data-rendered', 'error');
                }
            });
        }
    }

    // 添加CSS样式
    GM_addStyle(`
    /* KaTeX数学公式样式 */
    .latex-math-inline {
        display: inline-block;
        margin: 0 2px;
        vertical-align: middle;
        line-height: 1.2;
    }

    .latex-math-block {
        display: block;
        text-align: center;
        margin: 20px 0;
        padding: 15px;
        overflow-x: auto;
        overflow-y: hidden;
        position: relative;
    }

    /* 确保KaTeX公式正确显示 */
    .latex-math-inline .katex,
    .latex-math-block .katex {
        font-size: 1.05em;
    }

    .latex-math-block .katex {
        font-size: 1.1em;
    }

    /* 块级公式容器美化 */
    .latex-math-block {
        background: linear-gradient(145deg, rgba(20, 20, 35, 0.95), rgba(15, 15, 30, 0.95));
        border-radius: 8px;
        border: 1px solid rgba(80, 120, 200, 0.3);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    }

    .latex-math-block:hover {
        border-color: rgba(100, 150, 255, 0.5);
        box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
        transition: all 0.3s ease;
    }

    /* 行内公式容器美化 */
    .latex-math-inline {
        padding: 2px 4px;
        background: rgba(40, 40, 60, 0.1);
        border-radius: 4px;
        border: 1px solid rgba(100, 150, 255, 0.2);
    }

    .latex-math-inline:hover {
        background: rgba(50, 50, 80, 0.15);
        border-color: rgba(120, 180, 255, 0.3);
    }

    /* 表格样式增强 */

    /* 表格样式增强 - 修复边框半径问题 */
    .ds-markdown-table {
        border-collapse: separate;
        border-spacing: 0;
        width: 100%;
        margin: 15px 0;
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 8px;
        overflow: hidden;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }

    .ds-markdown-table th {
        background: linear-gradient(135deg, rgba(0, 123, 255, 0.3), rgba(0, 86, 179, 0.3));
        color: #ffffff;
        font-weight: bold;
        padding: 12px 15px;
        text-align: center;
        border-bottom: 2px solid rgba(0, 123, 255, 0.5);
    }

    .ds-markdown-table th:first-child {
        border-top-left-radius: 8px;
    }

    .ds-markdown-table th:last-child {
        border-top-right-radius: 8px;
    }

    .ds-markdown-table td {
        padding: 10px 15px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        color: #e0e0e0;
    }

    .ds-markdown-table tr:nth-child(even) {
        background: rgba(255, 255, 255, 0.02);
    }

    .ds-markdown-table tr:hover {
        background: rgba(0, 123, 255, 0.1);
        transition: background 0.3s ease;
    }

    .ds-markdown-table tr:last-child td:first-child {
        border-bottom-left-radius: 8px;
    }

    .ds-markdown-table tr:last-child td:last-child {
        border-bottom-right-radius: 8px;
    }

    .ds-markdown-table tr:last-child td {
        border-bottom: none;
    }

    /* 列表样式 */
    .ds-task-list {
        list-style: none;
        padding-left: 0;
        margin: 10px 0;
    }

    .ds-task-item {
        margin: 5px 0;
        padding: 5px 10px;
        background: rgba(255, 255, 255, 0.05);
        border-radius: 4px;
        display: flex;
        align-items: center;
    }

    .ds-task-item input[type="checkbox"] {
        margin-right: 10px;
    }

    .ds-unordered-list,
    .ds-ordered-list {
        margin: 10px 0;
        padding-left: 25px;
    }

    .ds-unordered-list li,
    .ds-ordered-list li {
        margin: 5px 0;
        padding: 3px 0;
    }

    /* 标题渐变色效果 */
    .ds-markdown-h1 {
        font-size: 2em;
        margin: 20px 0 15px;
        background: linear-gradient(90deg, #ff6b6b, #4ecdc4);
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
        padding-bottom: 5px;
        border-bottom: 2px solid rgba(78, 205, 196, 0.3);
    }

    .ds-markdown-h2 {
        font-size: 1.7em;
        margin: 18px 0 13px;
        background: linear-gradient(90deg, #4ecdc4, #1a936f);
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
        padding-bottom: 4px;
        border-bottom: 1px solid rgba(26, 147, 111, 0.3);
    }

    .ds-markdown-h3 {
        font-size: 1.4em;
        margin: 16px 0 11px;
        background: linear-gradient(90deg, #1a936f, #114b5f);
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
    }

    .ds-markdown-h4 {
        font-size: 1.2em;
        margin: 14px 0 9px;
        background: linear-gradient(90deg, #114b5f, #0d3a4a);
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
    }

    .ds-markdown-h5 {
        font-size: 1.1em;
        margin: 12px 0 7px;
        background: linear-gradient(90deg, #0d3a4a, #082a35);
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
    }

    .ds-markdown-h6 {
        font-size: 1em;
        margin: 10px 0 5px;
        background: linear-gradient(90deg, #082a35, #041a1f);
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
    }

    /* 增强的内联代码样式 */
    .inline-code {
        background: linear-gradient(145deg, #1a1a2e, #16213e);
        color: #66fcf1;
        padding: 2px 8px;
        border-radius: 4px;
        font-family: 'Fira Code', 'Consolas', 'Monaco', monospace;
        border: 1px solid rgba(102, 252, 241, 0.3);
        box-shadow: 0 3px 6px rgba(0,0,0,0.3),
                    inset 0 1px 1px rgba(255,255,255,0.1);
        display: inline-block;
        transform: translateY(-1px);
        transition: all 0.3s ease;
        font-size: 90%;
        line-height: 1.4;
    }

    .inline-code:hover {
        transform: translateY(-2px);
        box-shadow: 0 5px 10px rgba(0,0,0,0.4),
                    inset 0 1px 2px rgba(255,255,255,0.2);
        color: #45a29e;
    }

    /* 代码块样式 */
    .ds-message-content pre {
        background: rgba(10, 10, 20, 0.95) !important;
        padding: 15px;
        border-radius: 8px;
        overflow-x: auto;
        margin: 15px 0;
        border: 1px solid rgba(80, 120, 200, 0.4);
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4);
        position: relative;
    }

    .ds-message-content pre > .code-title {
        display: block;
        position: absolute;
        top: -12px;
        left: 15px;
        background: linear-gradient(90deg, #0f2027, #203a43, #2c5364);
        color: #fff;
        padding: 5px 15px;
        border-radius: 5px 5px 0 0;
        font-family: monospace;
        font-size: 12px;
        text-transform: uppercase;
        z-index: 1;
        box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    }

    /* 链接样式 */
    .ds-message-content a {
        color: #4ecdc4;
        text-decoration: none;
        border-bottom: 1px dotted rgba(78, 205, 196, 0.5);
        transition: all 0.3s ease;
    }

    .ds-message-content a:hover {
        color: #ff6b6b;
        border-bottom: 1px solid #ff6b6b;
    }

    /* 块引用样式 */
    blockquote {
        border-left: 4px solid rgba(78, 205, 196, 0.7);
        padding: 10px 15px;
        margin: 15px 0;
        background: rgba(78, 205, 196, 0.1);
        border-radius: 0 8px 8px 0;
        color: #e0e0e0;
        font-style: italic;
    }

    /* 水平线样式 */
    hr {
        border: none;
        height: 2px;
        background: linear-gradient(90deg, transparent, rgba(78, 205, 196, 0.5), transparent);
        margin: 20px 0;
    }

    /* Mermaid图表样式 */
    .ds-mermaid {
        background: rgba(25, 25, 35, 0.9);
        padding: 15px;
        border-radius: 8px;
        margin: 15px 0;
        border: 1px solid rgba(100, 200, 255, 0.2);
        overflow: auto;
        max-height: 500px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .mermaid-error {
        color: #ff9999;
        padding: 10px;
        border: 1px solid #ff9999;
        border-radius: 4px;
        background: rgba(255, 153, 153, 0.1);
    }

    /* 设置界面样式 - 新增 */
    .ds-settings-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(200, 200, 200, 0.7);
        z-index: 2147483647;
        display: flex;
        justify-content: center;
        align-items: center;
        backdrop-filter: blur(15px) saturate(180%);
        -webkit-backdrop-filter: blur(15px) saturate(180%);
    }

    .ds-settings-modal {
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(245, 245, 245, 0.95) 100%);
        border-radius: 12px;
        width: 90%;
        max-width: 1200px;
        max-height: 90vh;
        overflow: hidden;
        display: flex;
        flex-direction: column;
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
        border: 1px solid rgba(0, 0, 0, 0.1);
        backdrop-filter: blur(20px) saturate(180%);
        -webkit-backdrop-filter: blur(20px) saturate(180%);
    }

    .ds-edit-modal {
        max-width: 600px;
    }

    .ds-settings-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 15px 20px;
        background: linear-gradient(135deg, rgba(240, 240, 240, 0.95) 0%, rgba(230, 230, 230, 0.95) 100%);
        border-bottom: 1px solid rgba(0, 0, 0, 0.1);
        backdrop-filter: blur(10px) saturate(180%);
        -webkit-backdrop-filter: blur(10px) saturate(180%);
    }

    .ds-settings-title {
        font-size: 18px;
        font-weight: bold;
        color: #2c3e50;
    }

    .ds-settings-close {
        cursor: pointer;
        font-size: 24px;
        color: #ff6b6b;
        width: 30px;
        height: 30px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
        transition: all 0.3s ease;
    }

    .ds-settings-close:hover {
        background: rgba(255, 107, 107, 0.2);
        transform: rotate(90deg);
    }

    .ds-settings-content {
        flex: 1;
        overflow-y: auto;
        padding: 20px;
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(250, 250, 250, 0.95) 100%);
        backdrop-filter: blur(10px) saturate(180%);
        -webkit-backdrop-filter: blur(10px) saturate(180%);
    }

    .ds-section-title {
        font-size: 16px;
        font-weight: bold;
        color: #4ecdc4;
        margin-bottom: 15px;
        padding-bottom: 8px;
        border-bottom: 2px solid rgba(78, 205, 196, 0.3);
    }

    .ds-services-list {
        display: grid;
        gap: 12px;
        margin-bottom: 25px;
    }

    .ds-service-card {
        background: rgba(255, 255, 255, 0.9);
        border: 1px solid rgba(0, 0, 0, 0.1);
        border-radius: 8px;
        padding: 15px;
        transition: all 0.3s ease;
    }

    .ds-service-card:hover {
        background: rgba(255, 255, 255, 0.95);
        border-color: rgba(0, 0, 0, 0.2);
        transform: translateY(-2px);
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    }

    .ds-service-active {
        background: rgba(0, 123, 255, 0.15);
        border-color: rgba(0, 123, 255, 0.8);
        box-shadow: 0 0 20px rgba(0, 123, 255, 0.3);
    }

    .ds-service-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 10px;
    }

    .ds-service-name {
        font-size: 16px;
        font-weight: bold;
        color: #fff;
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .ds-service-icon {
        font-size: 18px;
    }

    .ds-current-badge {
        background: linear-gradient(135deg, #007bff, #0056b3);
        color: white;
        padding: 2px 8px;
        border-radius: 12px;
        font-size: 11px;
        font-weight: bold;
        margin-left: 8px;
    }

    .ds-service-actions {
        display: flex;
        gap: 6px;
    }

    .ds-action-btn {
        padding: 6px 12px;
        border: none;
        border-radius: 5px;
        cursor: pointer;
        font-size: 12px;
        font-weight: bold;
        transition: all 0.3s ease;
        display: flex;
        align-items: center;
        gap: 4px;
    }

    .ds-btn-select {
        background: linear-gradient(135deg, #00c853, #009624);
        color: white;
    }

    .ds-btn-select:hover {
        background: linear-gradient(135deg, #009624, #006414);
        transform: scale(1.05);
    }

    .ds-btn-edit {
        background: linear-gradient(135deg, #ff9800, #f57c00);
        color: white;
    }

    .ds-btn-edit:hover {
        background: linear-gradient(135deg, #f57c00, #e65100);
        transform: scale(1.05);
    }

    .ds-btn-delete {
        background: linear-gradient(135deg, #f44336, #c62828);
        color: white;
    }

    .ds-btn-delete:hover {
        background: linear-gradient(135deg, #c62828, #b71c1c);
        transform: scale(1.05);
    }

    .ds-service-details {
        margin-top: 10px;
        padding-top: 10px;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }

    .ds-detail-row {
        display: flex;
        margin-bottom: 6px;
        font-size: 13px;
    }

    .ds-detail-label {
        color: #666666;
        min-width: 80px;
        margin-right: 10px;
    }

    .ds-detail-value {
        color: #2c3e50;
        flex: 1;
        word-break: break-all;
    }

    .ds-url-value {
        font-family: monospace;
        font-size: 12px;
        color: #4ecdc4;
    }

    .ds-empty-message {
        text-align: center;
        color: #666666;
        padding: 20px;
        font-style: italic;
    }

    /* 表单样式 */
    .ds-config-form {
        background: rgba(250, 250, 250, 0.9);
        border: 1px solid rgba(0, 0, 0, 0.1);
        border-radius: 8px;
        padding: 15px;
        margin-bottom: 20px;
    }

    .ds-add-form {
        border-color: rgba(0, 0, 0, 0.2);
        background: rgba(245, 245, 245, 0.9);
    }

    .ds-form-field {
        margin-bottom: 15px;
    }

    .ds-form-label {
        display: block;
        margin-bottom: 5px;
        color: #2c3e50;
        font-size: 13px;
        font-weight: 500;
    }

    .ds-form-input,
    .ds-form-textarea {
        width: 100%;
        padding: 10px 12px;
        background: rgba(255, 255, 255, 0.95);
        border: 1px solid rgba(0, 0, 0, 0.2);
        border-radius: 6px;
        color: #333333;
        font-size: 14px;
        transition: all 0.3s ease;
        box-sizing: border-box;
    }

    .ds-form-input:focus,
    .ds-form-textarea:focus {
        outline: none;
        border-color: rgba(0, 0, 0, 0.4);
        background: rgba(255, 255, 255, 1);
        box-shadow: 0 0 10px rgba(0, 0, 0, 0.15);
    }

    .ds-form-input:hover,
    .ds-form-textarea:hover {
        background: rgba(255, 255, 255, 0.98);
        border-color: rgba(0, 0, 0, 0.3);
    }

    .ds-form-input::placeholder,
    .ds-form-textarea::placeholder {
        color: rgba(0, 0, 0, 0.4);
    }

    .ds-form-textarea {
        min-height: 80px;
        resize: vertical;
        font-family: monospace;
    }

    .ds-form-buttons {
        display: flex;
        gap: 10px;
        justify-content: flex-end;
        margin-top: 15px;
    }

    /* 获取模型列表按钮样式 */
    .ds-btn-fetch {
        padding: 8px 12px;
        background: linear-gradient(135deg, #6f42c1, #5a32a3);
        color: white;
        border: none;
        border-radius: 6px;
        cursor: pointer;
        font-size: 12px;
        font-weight: bold;
        transition: all 0.3s ease;
        white-space: nowrap;
        display: flex;
        align-items: center;
        gap: 4px;
    }

    .ds-btn-fetch:hover {
        background: linear-gradient(135deg, #5a32a3, #4a268a);
        transform: translateY(-1px);
        box-shadow: 0 4px 12px rgba(111, 66, 193, 0.4);
    }

    .ds-btn-fetch:active {
        transform: translateY(0);
    }

    .ds-btn-fetch:disabled {
        background: #6c757d;
        cursor: not-allowed;
        transform: none;
        box-shadow: none;
    }

    /* 输入框容器 */
    .ds-input-with-button {
        display: flex;
        gap: 8px;
        align-items: stretch;
    }

    .ds-input-with-button .ds-form-input {
        flex: 1;
        min-width: 0;
    }

    /* 响应式调整 */
    @media (max-width: 768px) {
        .ds-input-with-button {
            flex-direction: column;
            gap: 6px;
        }
        
        .ds-btn-fetch {
            width: 100%;
            justify-content: center;
        }
    }

    /* 按钮样式 */
    .ds-btn-primary,
    .ds-btn-secondary,
    .ds-btn-success {
        padding: 10px 20px;
        border: none;
        border-radius: 6px;
        cursor: pointer;
        font-size: 14px;
        font-weight: bold;
        transition: all 0.3s ease;
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }

    .ds-btn-primary {
        background: linear-gradient(135deg, #007bff, #0056b3);
        color: white;
    }

    .ds-btn-primary:hover {
        background: linear-gradient(135deg, #0056b3, #003d82);
        transform: translateY(-2px);
        box-shadow: 0 5px 15px rgba(0, 123, 255, 0.4);
    }

    .ds-btn-secondary {
        background: linear-gradient(135deg, #6c757d, #545b62);
        color: white;
    }

    .ds-btn-secondary:hover {
        background: linear-gradient(135deg, #545b62, #3d4146);
        transform: translateY(-2px);
        box-shadow: 0 5px 15px rgba(108, 117, 125, 0.4);
    }

    .ds-btn-success {
        background: linear-gradient(135deg, #28a745, #1e7e34);
        color: white;
    }

    .ds-btn-success:hover {
        background: linear-gradient(135deg, #1e7e34, #155724);
        transform: translateY(-2px);
        box-shadow: 0 5px 15px rgba(40, 167, 69, 0.4);
    }

    /* 模板按钮 */
    .ds-template-container {
        margin-bottom: 15px;
    }

    .ds-template-title {
        color: #888;
        font-size: 13px;
        margin-bottom: 8px;
    }

    .ds-template-buttons {
        display: flex;
        gap: 8px;
        flex-wrap: wrap;
    }

    .ds-template-btn {
        padding: 6px 12px;
        background: rgba(220, 220, 220, 0.5);
        border: 1px solid rgba(0, 0, 0, 0.15);
        border-radius: 15px;
        color: #555555;
        cursor: pointer;
        font-size: 12px;
        transition: all 0.3s ease;
    }

    .ds-template-btn:hover {
        background: rgba(200, 200, 200, 0.6);
        transform: translateY(-1px);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        color: #000000;
    }

    /* 当前服务信息 */
    .ds-current-info {
        background: rgba(220, 220, 220, 0.3);
        border: 1px solid rgba(0, 0, 0, 0.15);
        border-radius: 8px;
        padding: 15px;
    }

    .ds-current-service {
        display: flex;
        flex-direction: column;
        gap: 8px;
    }

    .ds-current-name {
        font-size: 18px;
        font-weight: bold;
        color: #2c3e50;
    }

    .ds-current-details {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        font-size: 12px;
        color: #555555;
    }

    .ds-current-details span {
        background: rgba(255, 255, 255, 0.05);
        padding: 4px 8px;
        border-radius: 4px;
    }

    /* 设置底部 */
    .ds-settings-footer {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 15px 20px;
        background: linear-gradient(135deg, rgba(240, 240, 240, 0.95) 0%, rgba(230, 230, 230, 0.95) 100%);
        border-top: 1px solid rgba(0, 0, 0, 0.1);
        backdrop-filter: blur(15px) saturate(180%);
        -webkit-backdrop-filter: blur(15px) saturate(180%);
    }

    .ds-footer-info {
        display: flex;
        gap: 15px;
        font-size: 13px;
        color: #666666;
    }

    .ds-footer-buttons {
        display: flex;
        gap: 8px;
    }

    /* 响应式设计 */
    @media (max-width: 768px) {
        .ds-settings-modal {
            width: 95%;
            max-height: 95vh;
        }

        .ds-service-header {
            flex-direction: column;
            align-items: flex-start;
            gap: 10px;
        }

        .ds-service-actions {
            width: 100%;
            justify-content: flex-start;
        }

        .ds-current-details {
            flex-direction: column;
            gap: 6px;
        }

        .ds-footer-info {
            flex-direction: column;
            gap: 5px;
        }

        .ds-footer-buttons {
            flex-wrap: wrap;
        }

        .ds-form-buttons {
            flex-wrap: wrap;
        }
    }

    /* 滚动条美化 */
    .ds-settings-content::-webkit-scrollbar {
        width: 8px;
    }

    .ds-settings-content::-webkit-scrollbar-track {
        background: rgba(255, 255, 255, 0.05);
        border-radius: 4px;
    }

    .ds-settings-content::-webkit-scrollbar-thumb {
        background: rgba(0, 123, 255, 0.5);
        border-radius: 4px;
    }

    .ds-settings-content::-webkit-scrollbar-thumb:hover {
        background: rgba(0, 123, 255, 0.7);
    }

    /* 原有样式保持不变 */
    @keyframes fadeInOut {
        0% { opacity: 0; }
        100% { opacity: 1; }
    }

    @keyframes fadeOut {
        0% { opacity: 1; transform: translateY(0); }
        100% { opacity: 0; transform: translateY(20px); }
    }

    .ds-chat-icon img {
        width: 30px;
        height: 30px;
        border-radius: 50%;
        transition: all 0.3s ease;
        animation: breath 2s infinite alternate;
    }

    .ds-chat-icon:hover img {
        transform: scale(1.1);
        filter: drop-shadow(0 0 8px rgba(0, 123, 255, 0.6));
        animation: pulse 0.5s infinite alternate;
    }

    @keyframes breath {
        0% { opacity: 0.9; }
        100% { opacity: 1; }
    }

    @keyframes pulse {
        0% { transform: scale(1); }
        100% { transform: scale(1.15); }
    }

    .ds-chat-window {
        position: fixed;
        bottom: 20px;
        right: 20px;
        width: 340px;
        max-width: 70vw;
        max-height: 70vh;
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(245, 245, 245, 0.95) 100%);
        border: 1px solid rgba(0, 0, 0, 0.1);
        border-radius: 15px;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
        display: none;
        flex-direction: column;
        overflow: hidden;
        opacity: 0;
        transform: translateY(20px);
        z-index: 2147483646;
        backdrop-filter: blur(20px) saturate(180%);
        -webkit-backdrop-filter: blur(20px) saturate(180%);
        animation: fadeInOut 0.5s ease-in-out forwards;
        transition: all 1s ease-in-out;
    }

    .ds-chat-window.active {
        display: flex;
        opacity: 1;
        transform: translateY(0);
    }

    .ds-chat-window.fullscreen {
        width: 100% !important;
        max-width: 100vw !important;
        max-height: 100vh !important;
        bottom: 0 !important;
        right: 0 !important;
        border-radius: 0 !important;
        animation: fadeInOut 1.2s ease-in-out forwards;
    }

    .ds-chat-icon {
        position: fixed;
        bottom: 5px;
        right: 5px;
        width: 50px;
        height: 50px;
        background: linear-gradient(135deg, rgba(0, 123, 255, 0.9), rgba(0, 86, 179, 0.9));
        border-radius: 50%;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        font-size: 24px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4), 0 0 20px rgba(0, 123, 255, 0.3);
        transition: all 0.3s ease;
        z-index: 2147483647;
        backdrop-filter: blur(10px);
        border: 2px solid rgba(255, 255, 255, 0.8);
        overflow: hidden;
        animation: pulse 2s infinite;
    }

    .ds-chat-icon:hover {
        transform: scale(1.1) translateY(-2px);
        box-shadow: 0 8px 25px rgba(0, 123, 255, 0.6), 0 0 30px rgba(0, 123, 255, 0.4);
        background: linear-gradient(135deg, rgba(0, 123, 255, 1), rgba(0, 86, 179, 1));
        animation: none;
    }

    .ds-chat-icon img {
        width: 34px;
        height: 34px;
        border-radius: 50%;
        object-fit: cover;
        image-rendering: -webkit-optimize-contrast;
        -webkit-user-drag: none;
        user-select: none;
    }

    .ds-chat-icon:active {
        transform: scale(0.95);
    }

    /* 图标加载失败时的样式 */
    .ds-chat-icon::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.3), transparent);
        border-radius: 50%;
        pointer-events: none;
    }

    /* 图标脉冲动画 */
    @keyframes pulse {
        0% {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4), 0 0 15px rgba(0, 123, 255, 0.3);
        }
        50% {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4), 0 0 25px rgba(0, 123, 255, 0.5);
        }
        100% {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4), 0 0 15px rgba(0, 123, 255, 0.3);
        }
    }

    .ds-chat-icon:hover {
        transform: scale(1.05);
        box-shadow: 0 6px 8px rgba(0, 0, 0, 0.3);
        background-color: rgba(0, 123, 255, 0.6);
    }

    .ds-chat-header {
        padding: 10px 15px;
        background: linear-gradient(135deg, rgba(0, 123, 255, 0.4) 0%, rgba(0, 86, 179, 0.4) 100%);
        color: white;
        display: flex;
        justify-content: space-between;
        align-items: center;
        border-radius: 15px 15px 0 0;
        backdrop-filter: blur(10px) saturate(180%);
        -webkit-backdrop-filter: blur(10px) saturate(180%);
        border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    }

    .ds-chat-title {
        font-weight: bold;
        color: #2372c3;
    }

    .ds-chat-close {
        cursor: pointer;
        font-size: 18px;
        color: #ff6666;
        margin-left: 5px;
    }

    .ds-chat-fullscreen {
        cursor: pointer;
        font-size: 18px;
        margin-right: 5px;
    }

    /* HTML预览按钮 */
    .ds-preview-html {
        background-color: rgba(0, 123, 255, 0.3);
        color: white;
        border: none;
        padding: 5px 10px;
        border-radius: 4px;
        cursor: pointer;
        margin-top: 5px;
        font-size: 12px;
    }

    .ds-preview-html:hover {
        background-color: rgba(0, 123, 255, 0.5);
    }

    /* HTML预览窗口 */
    .ds-html-preview {
        position: fixed;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 80%;
        height: 80%;
        background: white;
        border-radius: 10px;
        box-shadow: 0 10px 30px rgba(0,0,0,0.3);
        z-index: 2147483647;
        display: flex;
        flex-direction: column;
        overflow: hidden;
    }

    .ds-preview-header {
        padding: 10px 15px;
        background: #f0f0f0;
        display: flex;
        justify-content: space-between;
        align-items: center;
        border-bottom: 1px solid #ddd;
    }

    .ds-preview-iframe {
        flex: 1;
        border: none;
    }

    .ds-preview-close {
        cursor: pointer;
        font-size: 18px;
        color: #ff6666;
    }

    .ds-preview-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0,0,0,0.7);
        z-index: 2147483646;
    }

    .ds-chat-content {
        flex: 1;
        padding: 0px;
        overflow-y: auto;
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(250, 250, 250, 0.95) 100%);
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        backdrop-filter: blur(15px) saturate(180%);
        -webkit-backdrop-filter: blur(15px) saturate(180%);
    }

    .ds-chat-message {
        background-color: rgba(255, 255, 255, 0.9);
        margin-bottom: 10px;
        padding: 8px 12px;
        border-radius: 10px;
        line-height: 1.5;
        word-wrap: break-word;
        color: #333333;
        font-size: 14px;
        border: 1px solid rgba(0, 0, 0, 0.05);
    }

    .ds-user-message {
        background: linear-gradient(135deg, rgba(240, 240, 240, 0.95) 0%, rgba(230, 230, 230, 0.95) 100%);
        color: #2c3e50;
        margin-left: auto;
        text-align: right;
        font-size: 14px;
        padding: 8px 12px;
        border: 1px solid rgba(0, 0, 0, 0.1);
    }

    .ds-ai-message {
        background-color: rgba(255, 255, 255, 0.95);
        margin-right: 10%;
        font-size: 14px;
        padding: 8px 12px;
        line-height: 1.5;
        color: #2c3e50;
        border: 1px solid rgba(0, 0, 0, 0.05);
    }

    .ds-chat-input-area {
        padding: 10px;
        display: flex;
        flex-direction: column;
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(245, 245, 245, 0.95) 100%);
        border-top: 1px solid rgba(0, 0, 0, 0.05);
        backdrop-filter: blur(20px) saturate(180%);
        -webkit-backdrop-filter: blur(20px) saturate(180%);
    }

    .ds-chat-input {
        width: 100%;
        padding: 8px 10px;
        border: 1px solid rgba(0, 0, 0, 0.1);
        border-radius: 8px;
        margin-bottom: 8px;
        outline: none;
        transition: all 0.3s ease;
        font-size: 15px;
        color: #333333;
        background-color: rgba(255, 255, 255, 0.95);
        box-sizing: border-box;
    }

    .ds-chat-input:hover {
        border-color: rgba(0, 0, 0, 0.2);
        background-color: rgba(255, 255, 255, 0.98);
        box-shadow: 0 0 8px rgba(0, 0, 0, 0.1);
    }

    .ds-chat-input:focus {
        border-color: rgba(0, 0, 0, 0.3);
        background-color: rgba(255, 255, 255, 1);
        box-shadow: 0 0 12px rgba(0, 0, 0, 0.15);
    }

    .ds-chat-input::placeholder {
        color: rgba(0, 0, 0, 0.4);
    }

    .ds-chat-settings {
        display: flex;
        justify-content: space-between;
        font-size: 12px;
        color: #666666;
        align-items: center;
        padding: 0 5px;
        gap: 8px;
        flex-wrap: nowrap;
    }

    .ds-chat-settings-btn {
        cursor: pointer;
        text-decoration: underline;
        padding: 2px 5px;
        border-radius: 3px;
        transition: all 0.3s ease;
        color: #555555;
    }

    .ds-chat-settings-btn:hover {
        background-color: rgba(0, 0, 0, 0.05);
        color: #000000;
    }

    /* 服务选择器样式 */
    .ds-service-select {
        padding: 4px 8px;
        background: rgba(255, 255, 255, 0.95);
        border: 1px solid rgba(0, 0, 0, 0.15);
        border-radius: 4px;
        color: #333333;
        font-size: 12px;
        cursor: pointer;
        transition: all 0.3s ease;
        max-width: 120px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .ds-service-select:hover {
        border-color: rgba(0, 0, 0, 0.3);
        background: rgba(255, 255, 255, 0.98);
        box-shadow: 0 0 8px rgba(0, 0, 0, 0.1);
    }

    .ds-service-select:focus {
        outline: none;
        border-color: rgba(0, 0, 0, 0.4);
        background: rgba(255, 255, 255, 1);
        box-shadow: 0 0 12px rgba(0, 0, 0, 0.15);
    }

    /* 模型选择器样式 */
    .ds-model-select {
        padding: 4px 8px;
        background: rgba(255, 255, 255, 0.95);
        border: 1px solid rgba(0, 0, 0, 0.15);
        border-radius: 4px;
        color: #333333;
        font-size: 12px;
        cursor: pointer;
        transition: all 0.3s ease;
        max-width: 180px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .ds-model-select:hover {
        border-color: rgba(0, 0, 0, 0.3);
        background: rgba(255, 255, 255, 0.98);
        box-shadow: 0 0 8px rgba(0, 0, 0, 0.1);
    }

    .ds-model-select:focus {
        outline: none;
        border-color: rgba(0, 0, 0, 0.4);
        background: rgba(255, 255, 255, 1);
        box-shadow: 0 0 12px rgba(0, 0, 0, 0.15);
    }

    /* 调整聊天设置区域的布局 */
    .ds-chat-settings {
        display: flex;
        justify-content: space-between;
        font-size: 12px;
        color: #666;
        align-items: center;
        padding: 0 5px;
        gap: 8px;
        flex-wrap: nowrap;
    }

    /* 通知样式 */
    .ds-notification {
        position: fixed;
        top: 20px;
        right: 20px;
        background: linear-gradient(135deg, #00c853, #009624);
        color: white;
        padding: 12px 20px;
        border-radius: 8px;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
        z-index: 2147483648;
        font-size: 14px;
        font-weight: 500;
        animation: slideInRight 0.3s ease-out;
        max-width: 300px;
    }

    .ds-notification.error {
        background: linear-gradient(135deg, #f44336, #c62828);
    }

    .ds-notification.warning {
        background: linear-gradient(135deg, #ff9800, #f57c00);
    }

    @keyframes slideInRight {
        from {
            transform: translateX(100%);
            opacity: 0;
        }
        to {
            transform: translateX(0);
            opacity: 1;
        }
    }

    .ds-thinking {
        color: #e87be4;
        font-style: italic;
    }

    .ds-error {
        color: #ff0000;
    }

    .ds-reasoning-content {
        color: #888;
        font-size: 0.9em;
        border-left: 2px solid #ddd;
        padding-left: 10px;
        margin-bottom: 10px;
    }

    .ds-context-toggle {
        margin-bottom: 8px;
        display: flex;
        align-items: center;
        font-size: 12px;
    }

    .ds-context-toggle input {
        margin-right: 5px;
    }

    .ds-context-summary {
        font-size: 11px;
        color: #666;
        margin-top: 5px;
        font-style: italic;
    }

    .ds-chat-message {
        white-space: pre-wrap;
        word-break: break-word;
        visibility: visible !important;
        display: block !important;
        opacity: 1 !important;
    }

    .ds-ai-message {
        font-size: 14px;
        line-height: 1.5;
        padding: 8px 12px;
        margin: 0px 0px;
        background-color: rgba(255, 255, 255, 0.1);
        border-radius: 8px;
        box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
        color: #2372c3 !important;
    }

    .ds-message-content {
        font-size: 14px !important;
        line-height: 1.5 !important;
        color: #2372c3 !important;
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
        min-height: 1em;
        background: none !important;
        background-color: transparent !important;
        background-image: none !important;
        text-shadow: none !important;
    }

    @keyframes blink {
        0%, 100% { opacity: 1; }
        50% { opacity: 0; }
    }

    .ds-message-content::after {
        content: '|';
        position: relative;
        display: inline;
        color: transparent !important;
        animation: blink 1s infinite;
        margin-left: 2px;
    }

    .ds-message-content:not(:empty)::after {
        display: none;
    }
    `);

    // 初始化API配置
    let apiConfigs = GM_getValue('apiConfigs', [
        {
            id: 'deepseek',
            name: '深度求索',
            apiUrl: 'https://api.deepseek.com/v1/chat/completions',
            apiKey: '',
            models: ['deepseek-chat', 'deepseek-coder'],
            temperature: 0.7,
            maxTokens: 4000,
            maxContextTokens: 32000
        },
        {
            id: 'aliyun',
            name: '阿里云',
            apiUrl: 'https://dashscope.aliyuncs.com/compatible-mode/v1/chat/completions',
            apiKey: '',
            models: ['qwen-max', 'qwen-plus', 'qwen-turbo'],
            temperature: 0.7,
            maxTokens: 4000,
            maxContextTokens: 32000
        },
        {
            id: 'siliconflow',
            name: '硅基流动',
            apiUrl: 'https://api.siliconflow.cn/v1/chat/completions',
            apiKey: '',
            models: ['deepseek-ai/DeepSeek-V3.2', 'zai-org/GLM-4.6V'],
            temperature: 0.7,
            maxTokens: 4000,
            maxContextTokens: 32000
        }
    ]);

    let currentApiIndex = GM_getValue('currentApiIndex', 0);

    // 确保索引有效
    if (currentApiIndex >= apiConfigs.length) {
        currentApiIndex = 0;
        GM_setValue('currentApiIndex', currentApiIndex);
    }

    // 全局配置
    let config = {
        chatHistory: GM_getValue('chatHistory', []),
        usePageContext: GM_getValue('usePageContext', true),
        personalityPrompt: GM_getValue('personalityPrompt', '你是锐锐，一个18岁、热爱数学的可爱女孩。你性格聪明冷静，内心善良，对朋友真诚，伙伴遇困定会援手相助。\n你外貌甜美，皮肤白皙，大眼睛灵动有神。总是身着背带制服，搭配白色腿袜和小皮鞋，乌黑亮丽的高马尾活泼摆动，头上戴着红色蝴蝶结发箍。充满青春活力。\n你的性格特点:聪明、冷静、善良、真诚。\n你的说话风格:逻辑清晰，又温柔贴心。')
    };

    // 获取当前选中的API配置
    function getCurrentApiConfig() {
        return apiConfigs[currentApiIndex];
    }

    // 设置当前API配置
    function setCurrentApiConfig(index) {
        if (index >= 0 && index < apiConfigs.length) {
            currentApiIndex = index;
            GM_setValue('currentApiIndex', currentApiIndex);
        }
    }

    // 获取当前选中的模型（全局函数，供其他地方使用）
    function getCurrentModel() {
        const currentApi = getCurrentApiConfig();
        if (currentApi && currentApi.models && currentApi.models.length > 0) {
            // 返回当前服务的第一个模型作为默认值
            return currentApi.models[0];
        }
        return 'deepseek-chat'; // 默认模型
    }

    // 获取当前配置（动态生成，基于当前选中的API配置）
    function getCurrentConfig() {
        const currentApi = getCurrentApiConfig();
        // 获取当前选中的模型
        const selectedModel = getCurrentModel();
        
        return {
            apiKey: currentApi.apiKey,
            apiUrl: currentApi.apiUrl,
            model: selectedModel,
            temperature: currentApi.temperature,
            maxTokens: currentApi.maxTokens,
            maxContextTokens: currentApi.maxContextTokens,
            chatHistory: config.chatHistory,
            usePageContext: config.usePageContext,
            personalityPrompt: config.personalityPrompt
        };
    }

    // 打开设置模态框
    function openSettingsModal() {
        // 创建设置覆盖层
        const overlay = document.createElement('div');
        overlay.className = 'ds-settings-overlay';
        document.body.appendChild(overlay);

        // 创建设置模态框
        const modal = document.createElement('div');
        modal.className = 'ds-settings-modal';
        overlay.appendChild(modal);

        // 设置头部
        const header = document.createElement('div');
        header.className = 'ds-settings-header';
        modal.appendChild(header);

        const title = document.createElement('div');
        title.className = 'ds-settings-title';
        title.innerText = '🔧 多服务 API 配置管理';
        header.appendChild(title);

        const closeBtn = document.createElement('div');
        closeBtn.className = 'ds-settings-close';
        closeBtn.innerHTML = '×';
        closeBtn.title = '关闭';
        header.appendChild(closeBtn);

        // 设置内容区域
        const content = document.createElement('div');
        content.className = 'ds-settings-content';
        modal.appendChild(content);

        // 服务列表区域
        const servicesSection = document.createElement('div');
        servicesSection.className = 'ds-services-section';
        content.appendChild(servicesSection);

        // 服务列表标题
        const sectionTitle = document.createElement('div');
        sectionTitle.className = 'ds-section-title';
        sectionTitle.innerHTML = '📋 已配置的服务';
        servicesSection.appendChild(sectionTitle);

        // 服务列表容器
        const servicesList = document.createElement('div');
        servicesList.className = 'ds-services-list';
        servicesSection.appendChild(servicesList);

        // 渲染服务列表函数
        function renderServicesList() {
            servicesList.innerHTML = '';

            if (apiConfigs.length === 0) {
                const emptyMsg = document.createElement('div');
                emptyMsg.className = 'ds-empty-message';
                emptyMsg.innerHTML = '暂无配置的服务，请添加新的服务配置';
                servicesList.appendChild(emptyMsg);
                return;
            }

            apiConfigs.forEach((config, index) => {
                const serviceCard = document.createElement('div');
                serviceCard.className = `ds-service-card ${index === currentApiIndex ? 'ds-service-active' : ''}`;
                servicesList.appendChild(serviceCard);

                // 服务头部
                const cardHeader = document.createElement('div');
                cardHeader.className = 'ds-service-header';
                serviceCard.appendChild(cardHeader);

                const serviceName = document.createElement('div');
                serviceName.className = 'ds-service-name';
                serviceName.innerHTML = `<span class="ds-service-icon">🌐</span> ${config.name} ${index === currentApiIndex ? '<span class="ds-current-badge">当前</span>' : ''}`;
                cardHeader.appendChild(serviceName);

                const serviceActions = document.createElement('div');
                serviceActions.className = 'ds-service-actions';
                cardHeader.appendChild(serviceActions);

                // 操作按钮
                const selectBtn = document.createElement('button');
                selectBtn.className = 'ds-action-btn ds-btn-select';
                selectBtn.innerHTML = '✓ 选择';
                selectBtn.title = '选择此服务作为当前API';
                selectBtn.onclick = () => {
                    setCurrentApiConfig(index);
                    renderServicesList();
                    updateCurrentServiceInfo();
                };
                serviceActions.appendChild(selectBtn);

                const editBtn = document.createElement('button');
                editBtn.className = 'ds-action-btn ds-btn-edit';
                editBtn.innerHTML = '✏️ 编辑';
                editBtn.title = '编辑此服务配置';
                editBtn.onclick = () => {
                    editServiceConfig(index);
                };
                serviceActions.appendChild(editBtn);

                const deleteBtn = document.createElement('button');
                deleteBtn.className = 'ds-action-btn ds-btn-delete';
                deleteBtn.innerHTML = '🗑️ 删除';
                deleteBtn.title = '删除此服务配置';
                deleteBtn.onclick = () => {
                    if (confirm(`确定要删除服务 "${config.name}" 吗？`)) {
                        apiConfigs.splice(index, 1);
                        if (currentApiIndex >= apiConfigs.length) {
                            currentApiIndex = Math.max(0, apiConfigs.length - 1);
                        }
                        GM_setValue('apiConfigs', apiConfigs);
                        GM_setValue('currentApiIndex', currentApiIndex);
                        renderServicesList();
                        updateCurrentServiceInfo();
                    }
                };
                serviceActions.appendChild(deleteBtn);

                // 服务详情
                const serviceDetails = document.createElement('div');
                serviceDetails.className = 'ds-service-details';
                serviceCard.appendChild(serviceDetails);

                // API URL
                const urlRow = document.createElement('div');
                urlRow.className = 'ds-detail-row';
                urlRow.innerHTML = `<span class="ds-detail-label">API地址:</span><span class="ds-detail-value ds-url-value" title="${config.apiUrl}">${config.apiUrl}</span>`;
                serviceDetails.appendChild(urlRow);

                // API Key (部分显示)
                const keyRow = document.createElement('div');
                keyRow.className = 'ds-detail-row';
                const maskedKey = config.apiKey ? `${config.apiKey.substring(0, 8)}...${config.apiKey.substring(config.apiKey.length - 4)}` : '未设置';
                keyRow.innerHTML = `<span class="ds-detail-label">API密钥:</span><span class="ds-detail-value">${maskedKey}</span>`;
                serviceDetails.appendChild(keyRow);

                // 模型列表
                const modelsRow = document.createElement('div');
                modelsRow.className = 'ds-detail-row';
                modelsRow.innerHTML = `<span class="ds-detail-label">可用模型:</span><span class="ds-detail-value">${config.models.join(', ')}</span>`;
                serviceDetails.appendChild(modelsRow);

                // 参数信息
                const paramsRow = document.createElement('div');
                paramsRow.className = 'ds-detail-row';
                paramsRow.innerHTML = `<span class="ds-detail-label">参数:</span><span class="ds-detail-value">温度: ${config.temperature} | Token限制: ${config.maxTokens}</span>`;
                serviceDetails.appendChild(paramsRow);
            });
        }

        // 编辑服务配置函数
        function editServiceConfig(index) {
            const config = apiConfigs[index];
            
            // 创建编辑模态框
            const editOverlay = document.createElement('div');
            editOverlay.className = 'ds-settings-overlay';
            document.body.appendChild(editOverlay);

            const editModal = document.createElement('div');
            editModal.className = 'ds-settings-modal ds-edit-modal';
            editOverlay.appendChild(editModal);

            const editHeader = document.createElement('div');
            editHeader.className = 'ds-settings-header';
            editModal.appendChild(editHeader);

            const editTitle = document.createElement('div');
            editTitle.className = 'ds-settings-title';
            editTitle.innerText = `编辑服务: ${config.name}`;
            editHeader.appendChild(editTitle);

            const editCloseBtn = document.createElement('div');
            editCloseBtn.className = 'ds-settings-close';
            editCloseBtn.innerHTML = '×';
            editCloseBtn.title = '关闭';
            editHeader.appendChild(editCloseBtn);

            const editContent = document.createElement('div');
            editContent.className = 'ds-edit-content';
            editModal.appendChild(editContent);

            // 创建表单
            const form = document.createElement('div');
            form.className = 'ds-config-form';
            editContent.appendChild(form);

            // 表单字段
            const fields = [
                { label: '服务名称', type: 'text', key: 'name', value: config.name, placeholder: '例如: 深度求索' },
                { label: 'API地址', type: 'text', key: 'apiUrl', value: config.apiUrl, placeholder: 'https://api.example.com/v1/chat/completions' },
                { label: 'API密钥', type: 'password', key: 'apiKey', value: config.apiKey, placeholder: '输入您的API密钥' },
                { label: '模型列表', type: 'textarea', key: 'models', value: config.models.join('\n'), placeholder: '每行一个模型名称\ndeepseek-chat\ndeepseek-coder' },
                { label: '温度', type: 'number', key: 'temperature', value: config.temperature, min: 0, max: 2, step: 0.1 },
                { label: 'Token限制', type: 'number', key: 'maxTokens', value: config.maxTokens, min: 1, max: 65535 },
                { label: '上下文Token限制', type: 'number', key: 'maxContextTokens', value: config.maxContextTokens || 32000, min: 1, max: 128000 }
            ];

            // 存储输入框引用
            const editInputRefs = {};

            fields.forEach(field => {
                const fieldDiv = document.createElement('div');
                fieldDiv.className = 'ds-form-field';
                form.appendChild(fieldDiv);

                const label = document.createElement('label');
                label.className = 'ds-form-label';
                label.innerText = field.label;
                fieldDiv.appendChild(label);

                // 为API地址字段添加特殊布局
                if (field.key === 'apiUrl') {
                    const inputContainer = document.createElement('div');
                    inputContainer.className = 'ds-input-with-button';
                    inputContainer.style.display = 'flex';
                    inputContainer.style.gap = '8px';
                    inputContainer.style.alignItems = 'stretch';

                    const input = document.createElement('input');
                    input.type = field.type;
                    input.className = 'ds-form-input';
                    input.style.flex = '1';
                    input.value = field.value;
                    input.placeholder = field.placeholder || '';
                    input.dataset.key = field.key;
                    editInputRefs.apiUrl = input;

                    // 获取模型列表按钮
                    const fetchBtn = document.createElement('button');
                    fetchBtn.className = 'ds-btn-fetch';
                    fetchBtn.innerText = '获取模型列表';
                    fetchBtn.title = '从服务器获取可用的模型列表';
                    fetchBtn.type = 'button';

                    fetchBtn.onclick = async () => {
                        const apiUrl = input.value.trim();
                        const apiKey = editInputRefs.apiKey ? editInputRefs.apiKey.value.trim() : '';
                        
                        if (!apiUrl) {
                            showNotification('请先输入API地址', 'warning');
                            return;
                        }

                        if (!apiKey) {
                            showNotification('请先输入API密钥', 'warning');
                            return;
                        }

                        // 显示加载状态
                        fetchBtn.disabled = true;
                        fetchBtn.innerText = '获取中...';
                        fetchBtn.style.opacity = '0.7';

                        try {
                            const models = await fetchModelList(apiUrl, apiKey);
                            if (models && models.length > 0) {
                                // 将模型列表填充到模型输入框
                                const modelsTextarea = editInputRefs.models;
                                if (modelsTextarea) {
                                    modelsTextarea.value = models.join('\n');
                                }
                                showNotification(`成功获取 ${models.length} 个模型`, 'success');
                            } else {
                                showNotification('未获取到模型列表，请检查API地址和密钥', 'warning');
                            }
                        } catch (error) {
                            console.error('获取模型列表失败:', error);
                            showNotification(`获取模型列表失败: ${error.message}`, 'error');
                        } finally {
                            fetchBtn.disabled = false;
                            fetchBtn.innerText = '获取模型列表';
                            fetchBtn.style.opacity = '1';
                        }
                    };

                    inputContainer.appendChild(input);
                    inputContainer.appendChild(fetchBtn);
                    fieldDiv.appendChild(inputContainer);
                } else if (field.type === 'textarea') {
                    const input = document.createElement('textarea');
                    input.className = 'ds-form-textarea';
                    input.value = field.value;
                    input.placeholder = field.placeholder || '';
                    input.dataset.key = field.key;
                    editInputRefs[field.key] = input;
                    fieldDiv.appendChild(input);
                } else {
                    const input = document.createElement('input');
                    input.type = field.type;
                    input.className = 'ds-form-input';
                    input.value = field.value;
                    input.placeholder = field.placeholder || '';
                    if (field.min !== undefined) input.min = field.min;
                    if (field.max !== undefined) input.max = field.max;
                    if (field.step !== undefined) input.step = field.step;
                    input.dataset.key = field.key;
                    editInputRefs[field.key] = input;
                    fieldDiv.appendChild(input);
                }
            });

            // 按钮区域
            const buttonArea = document.createElement('div');
            buttonArea.className = 'ds-form-buttons';
            editContent.appendChild(buttonArea);

            const saveBtn = document.createElement('button');
            saveBtn.className = 'ds-btn-primary';
            saveBtn.innerText = '保存';
            saveBtn.onclick = () => {
                const inputs = form.querySelectorAll('.ds-form-input, .ds-form-textarea');
                const newConfig = { ...config };
                
                inputs.forEach(input => {
                    const key = input.dataset.key;
                    if (key === 'models') {
                        newConfig[key] = input.value.split('\n').filter(m => m.trim());
                    } else if (key === 'temperature' || key === 'maxTokens' || key === 'maxContextTokens') {
                        newConfig[key] = parseFloat(input.value) || config[key];
                    } else {
                        newConfig[key] = input.value;
                    }
                });

                // 验证必填字段
                if (!newConfig.name || !newConfig.apiUrl || !newConfig.apiKey) {
                    alert('请填写服务名称、API地址和API密钥');
                    return;
                }

                apiConfigs[index] = newConfig;
                GM_setValue('apiConfigs', apiConfigs);
                renderServicesList();
                document.body.removeChild(editOverlay);
            };
            buttonArea.appendChild(saveBtn);

            const cancelBtn = document.createElement('button');
            cancelBtn.className = 'ds-btn-secondary';
            cancelBtn.innerText = '取消';
            cancelBtn.onclick = () => {
                document.body.removeChild(editOverlay);
            };
            buttonArea.appendChild(cancelBtn);

            // 关闭事件
            editCloseBtn.addEventListener('click', () => {
                document.body.removeChild(editOverlay);
            });

            editOverlay.addEventListener('click', (e) => {
                if (e.target === editOverlay) {
                    document.body.removeChild(editOverlay);
                }
            });
        }

        // 添加新服务区域
        const addSection = document.createElement('div');
        addSection.className = 'ds-add-section';
        content.appendChild(addSection);

        const addTitle = document.createElement('div');
        addTitle.className = 'ds-section-title';
        addTitle.innerHTML = '➕ 添加新服务';
        addSection.appendChild(addTitle);

        // 从服务器获取模型列表的函数
        async function fetchModelList(apiUrl, apiKey) {
            return new Promise((resolve, reject) => {
                // 根据不同的API端点，使用不同的请求方式
                let requestData, requestUrl, requestMethod, requestHeaders;

                // 检测API类型并构造相应的请求
                if (apiUrl.includes('deepseek.com') || apiUrl.includes('/v1/chat/completions')) {
                    // DeepSeek API 或标准OpenAI格式API
                    requestUrl = apiUrl.replace('/chat/completions', '/models');
                    if (!requestUrl.endsWith('/models')) {
                        requestUrl = apiUrl.replace(/\/chat\/completions$/, '/models');
                    }
                    requestMethod = 'GET';
                    requestHeaders = {
                        'Authorization': `Bearer ${apiKey}`,
                        'Content-Type': 'application/json'
                    };
                    requestData = null;
                } else if (apiUrl.includes('dashscope.aliyuncs.com')) {
                    // 阿里云DashScope API
                    requestUrl = 'https://dashscope.aliyuncs.com/api/v1/models';
                    requestMethod = 'GET';
                    requestHeaders = {
                        'Authorization': `Bearer ${apiKey}`,
                        'Content-Type': 'application/json'
                    };
                    requestData = null;
                } else if (apiUrl.includes('siliconflow.cn')) {
                    // 硅基流动API
                    requestUrl = 'https://api.siliconflow.cn/v1/models';
                    requestMethod = 'GET';
                    requestHeaders = {
                        'Authorization': `Bearer ${apiKey}`,
                        'Content-Type': 'application/json'
                    };
                    requestData = null;
                } else {
                    // 通用API尝试获取模型列表
                    requestUrl = apiUrl.replace(/\/(chat|completions).*$/, '/models');
                    if (requestUrl === apiUrl) {
                        requestUrl = apiUrl + '/models';
                    }
                    requestMethod = 'GET';
                    requestHeaders = {
                        'Authorization': `Bearer ${apiKey}`,
                        'Content-Type': 'application/json'
                    };
                    requestData = null;
                }

                console.log('请求模型列表:', requestUrl, requestMethod, requestHeaders);

                GM_xmlhttpRequest({
                    method: requestMethod,
                    url: requestUrl,
                    headers: requestHeaders,
                    data: requestData,
                    timeout: 10000,
                    onload: (response) => {
                        try {
                            const data = JSON.parse(response.responseText);
                            console.log('模型列表响应:', data);

                            let models = [];

                            // 解析不同格式的响应
                            if (Array.isArray(data)) {
                                // 直接是模型数组
                                models = data.map(item => {
                                    if (typeof item === 'string') return item;
                                    if (item.id) return item.id;
                                    if (item.name) return item.name;
                                    return JSON.stringify(item);
                                }).filter(m => m);
                            } else if (data.data && Array.isArray(data.data)) {
                                // OpenAI格式: {data: [...]}
                                models = data.data.map(item => {
                                    if (item.id) return item.id;
                                    if (item.name) return item.name;
                                    return JSON.stringify(item);
                                }).filter(m => m);
                            } else if (data.models && Array.isArray(data.models)) {
                                // 某些API格式: {models: [...]}
                                models = data.models.map(item => {
                                    if (typeof item === 'string') return item;
                                    if (item.id) return item.id;
                                    if (item.name) return item.name;
                                    return JSON.stringify(item);
                                }).filter(m => m);
                            } else if (data.results && Array.isArray(data.results)) {
                                // 阿里云格式: {results: [...]}
                                models = data.results.map(item => {
                                    if (item.model) return item.model;
                                    if (item.id) return item.id;
                                    return JSON.stringify(item);
                                }).filter(m => m);
                            } else {
                                // 尝试从其他字段中提取模型信息
                                Object.keys(data).forEach(key => {
                                    const value = data[key];
                                    if (Array.isArray(value)) {
                                        value.forEach(item => {
                                            if (typeof item === 'string') models.push(item);
                                            else if (item.id) models.push(item.id);
                                            else if (item.name) models.push(item.name);
                                        });
                                    }
                                });
                            }

                            // 如果还是没有模型，尝试从API地址推断
                            if (models.length === 0) {
                                console.warn('无法从响应中解析模型列表，尝试推断...');
                                if (apiUrl.includes('deepseek')) {
                                    models = ['deepseek-chat', 'deepseek-coder', 'deepseek-v2.5'];
                                } else if (apiUrl.includes('dashscope')) {
                                    models = ['qwen-max', 'qwen-plus', 'qwen-turbo', 'qwen-7b', 'qwen-14b'];
                                } else if (apiUrl.includes('siliconflow')) {
                                    models = ['deepseek-ai/DeepSeek-V2.5', 'BAAI/bge-large-zh-v1.5'];
                                } else {
                                    models = ['gpt-3.5-turbo', 'gpt-4', 'gpt-4-turbo'];
                                }
                            }

                            // 去重和排序
                            models = [...new Set(models)].sort();

                            resolve(models);
                        } catch (error) {
                            console.error('解析模型列表响应失败:', error);
                            reject(new Error('解析响应失败: ' + error.message));
                        }
                    },
                    onerror: (error) => {
                        console.error('请求模型列表失败:', error);
                        reject(new Error('网络请求失败: ' + error.statusText));
                    },
                    ontimeout: () => {
                        reject(new Error('请求超时，请检查网络连接'));
                    }
                });
            });
        }

        // 快速添加模板
        const templates = [
            { name: '深度求索', apiUrl: 'https://api.deepseek.com/v1/chat/completions', models: ['deepseek-chat', 'deepseek-coder'] },
            { name: '阿里云', apiUrl: 'https://dashscope.aliyuncs.com/compatible-mode/v1/chat/completions', models: ['qwen-max', 'qwen-plus', 'qwen-turbo'] },
            { name: '硅基流动', apiUrl: 'https://api.siliconflow.cn/v1/chat/completions', models: ['deepseek-ai/DeepSeek-V2.5', 'BAAI/bge-large-zh-v1.5'] }
        ];

        const templateContainer = document.createElement('div');
        templateContainer.className = 'ds-template-container';
        addSection.appendChild(templateContainer);

        const templateTitle = document.createElement('div');
        templateTitle.className = 'ds-template-title';
        templateTitle.innerText = '快速模板:';
        templateContainer.appendChild(templateTitle);

        const templateButtons = document.createElement('div');
        templateButtons.className = 'ds-template-buttons';
        templateContainer.appendChild(templateButtons);

        templates.forEach(template => {
            const btn = document.createElement('button');
            btn.className = 'ds-template-btn';
            btn.innerText = template.name;
            btn.onclick = () => {
                addServiceForm.querySelector('[data-key="name"]').value = template.name;
                addServiceForm.querySelector('[data-key="apiUrl"]').value = template.apiUrl;
                addServiceForm.querySelector('[data-key="models"]').value = template.models.join('\n');
            };
            templateButtons.appendChild(btn);
        });

        // 添加表单
        const addServiceForm = document.createElement('div');
        addServiceForm.className = 'ds-config-form ds-add-form';
        addSection.appendChild(addServiceForm);

        const addFields = [
            { label: '服务名称', type: 'text', key: 'name', placeholder: '例如: 自定义服务' },
            { label: 'API地址', type: 'text', key: 'apiUrl', placeholder: 'https://api.example.com/v1/chat/completions' },
            { label: 'API密钥', type: 'password', key: 'apiKey', placeholder: '输入您的API密钥' },
            { label: '模型列表', type: 'textarea', key: 'models', placeholder: '每行一个模型名称\ndeepseek-chat\ndeepseek-coder' },
            { label: '温度', type: 'number', key: 'temperature', value: '0.7', min: 0, max: 2, step: 0.1 },
            { label: 'Token限制', type: 'number', key: 'maxTokens', value: '4000', min: 1, max: 65535 },
            { label: '上下文Token限制', type: 'number', key: 'maxContextTokens', value: '32000', min: 1, max: 128000 }
        ];

        // 存储输入框引用，用于获取模型列表功能
        const inputRefs = {};

        addFields.forEach(field => {
            const fieldDiv = document.createElement('div');
            fieldDiv.className = 'ds-form-field';
            addServiceForm.appendChild(fieldDiv);

            const label = document.createElement('label');
            label.className = 'ds-form-label';
            label.innerText = field.label;
            fieldDiv.appendChild(label);

            // 为API地址字段添加特殊布局
            if (field.key === 'apiUrl') {
                const inputContainer = document.createElement('div');
                inputContainer.className = 'ds-input-with-button';
                inputContainer.style.display = 'flex';
                inputContainer.style.gap = '8px';
                inputContainer.style.alignItems = 'stretch';

                const input = document.createElement('input');
                input.type = field.type;
                input.className = 'ds-form-input';
                input.style.flex = '1';
                input.placeholder = field.placeholder || '';
                input.dataset.key = field.key;
                inputRefs.apiUrl = input;

                // 获取模型列表按钮
                const fetchBtn = document.createElement('button');
                fetchBtn.className = 'ds-btn-fetch';
                fetchBtn.innerText = '获取模型列表';
                fetchBtn.title = '从服务器获取可用的模型列表';
                fetchBtn.type = 'button'; // 防止触发表单提交

                fetchBtn.onclick = async () => {
                    const apiUrl = input.value.trim();
                    const apiKey = inputRefs.apiKey ? inputRefs.apiKey.value.trim() : '';
                    
                    if (!apiUrl) {
                        showNotification('请先输入API地址', 'warning');
                        return;
                    }

                    if (!apiKey) {
                        showNotification('请先输入API密钥', 'warning');
                        return;
                    }

                    // 显示加载状态
                    fetchBtn.disabled = true;
                    fetchBtn.innerText = '获取中...';
                    fetchBtn.style.opacity = '0.7';

                    try {
                        const models = await fetchModelList(apiUrl, apiKey);
                        if (models && models.length > 0) {
                            // 将模型列表填充到模型输入框
                            const modelsTextarea = inputRefs.models;
                            if (modelsTextarea) {
                                modelsTextarea.value = models.join('\n');
                            }
                            showNotification(`成功获取 ${models.length} 个模型`, 'success');
                        } else {
                            showNotification('未获取到模型列表，请检查API地址和密钥', 'warning');
                        }
                    } catch (error) {
                        console.error('获取模型列表失败:', error);
                        showNotification(`获取模型列表失败: ${error.message}`, 'error');
                    } finally {
                        fetchBtn.disabled = false;
                        fetchBtn.innerText = '获取模型列表';
                        fetchBtn.style.opacity = '1';
                    }
                };

                inputContainer.appendChild(input);
                inputContainer.appendChild(fetchBtn);
                fieldDiv.appendChild(inputContainer);
            } else if (field.type === 'textarea') {
                const input = document.createElement('textarea');
                input.className = 'ds-form-textarea';
                input.placeholder = field.placeholder || '';
                input.dataset.key = field.key;
                inputRefs[field.key] = input;
                fieldDiv.appendChild(input);
            } else {
                const input = document.createElement('input');
                input.type = field.type;
                input.className = 'ds-form-input';
                input.placeholder = field.placeholder || '';
                if (field.value !== undefined) input.value = field.value;
                if (field.min !== undefined) input.min = field.min;
                if (field.max !== undefined) input.max = field.max;
                if (field.step !== undefined) input.step = field.step;
                input.dataset.key = field.key;
                inputRefs[field.key] = input;
                fieldDiv.appendChild(input);
            }
        });

        // 添加按钮
        const addButtons = document.createElement('div');
        addButtons.className = 'ds-form-buttons';
        addSection.appendChild(addButtons);

        const addBtn = document.createElement('button');
        addBtn.className = 'ds-btn-success';
        addBtn.innerText = '添加服务';
        addBtn.onclick = () => {
            const inputs = addServiceForm.querySelectorAll('.ds-form-input, .ds-form-textarea');
            const newConfig = {
                id: `custom_${Date.now()}`,
                name: '',
                apiUrl: '',
                apiKey: '',
                models: [],
                temperature: 0.7,
                maxTokens: 4000,
                maxContextTokens: 32000
            };

            inputs.forEach(input => {
                const key = input.dataset.key;
                if (key === 'models') {
                    newConfig[key] = input.value.split('\n').filter(m => m.trim());
                } else if (key === 'temperature' || key === 'maxTokens' || key === 'maxContextTokens') {
                    newConfig[key] = parseFloat(input.value) || newConfig[key];
                } else {
                    newConfig[key] = input.value;
                }
            });

            // 验证必填字段
            if (!newConfig.name || !newConfig.apiUrl || !newConfig.apiKey) {
                alert('请填写服务名称、API地址和API密钥');
                return;
            }

            if (newConfig.models.length === 0) {
                alert('请至少填写一个模型名称');
                return;
            }

            apiConfigs.push(newConfig);
            GM_setValue('apiConfigs', apiConfigs);
            renderServicesList();

            // 清空表单
            inputs.forEach(input => {
                if (input.tagName === 'TEXTAREA') {
                    input.value = '';
                } else if (input.type === 'number') {
                    if (input.dataset.key === 'temperature') input.value = '0.7';
                    else if (input.dataset.key === 'maxTokens') input.value = '4000';
                    else if (input.dataset.key === 'maxContextTokens') input.value = '32000';
                    else input.value = '';
                } else {
                    input.value = '';
                }
            });
        };
        addButtons.appendChild(addBtn);

        const clearBtn = document.createElement('button');
        clearBtn.className = 'ds-btn-secondary';
        clearBtn.innerText = '清空表单';
        clearBtn.onclick = () => {
            const inputs = addServiceForm.querySelectorAll('.ds-form-input, .ds-form-textarea');
            inputs.forEach(input => {
                if (input.tagName === 'TEXTAREA') {
                    input.value = '';
                } else if (input.type === 'number') {
                    if (input.dataset.key === 'temperature') input.value = '0.7';
                    else if (input.dataset.key === 'maxTokens') input.value = '4000';
                    else if (input.dataset.key === 'maxContextTokens') input.value = '32000';
                    else input.value = '';
                } else {
                    input.value = '';
                }
            });
        };
        addButtons.appendChild(clearBtn);

        // 当前服务信息区域
        const currentSection = document.createElement('div');
        currentSection.className = 'ds-current-section';
        content.appendChild(currentSection);

        const currentTitle = document.createElement('div');
        currentTitle.className = 'ds-section-title';
        currentTitle.innerHTML = '🎯 当前服务';
        currentSection.appendChild(currentTitle);

        const currentInfo = document.createElement('div');
        currentInfo.className = 'ds-current-info';
        currentSection.appendChild(currentInfo);

        // 更新当前服务信息函数
        function updateCurrentServiceInfo() {
            const currentApi = getCurrentApiConfig();
            if (currentApi) {
                currentInfo.innerHTML = `
                    <div class="ds-current-service">
                        <div class="ds-current-name">${currentApi.name}</div>
                        <div class="ds-current-details">
                            <span>🌐 ${currentApi.apiUrl}</span>
                            <span>🤖 ${currentApi.models.join(', ')}</span>
                            <span>🌡️ 温度: ${currentApi.temperature}</span>
                            <span>🔢 Token限制: ${currentApi.maxTokens}</span>
                        </div>
                    </div>
                `;
            } else {
                currentInfo.innerHTML = '<div class="ds-empty-message">请先添加并选择一个服务</div>';
            }
        }

        // 设置底部
        const footer = document.createElement('div');
        footer.className = 'ds-settings-footer';
        modal.appendChild(footer);

        const footerLeft = document.createElement('div');
        footerLeft.className = 'ds-footer-info';
        footerLeft.innerHTML = `
            <span>📊 共 ${apiConfigs.length} 个服务</span>
            <span>🎯 当前: ${apiConfigs[currentApiIndex]?.name || '未选择'}</span>
        `;
        footer.appendChild(footerLeft);

        const footerButtons = document.createElement('div');
        footerButtons.className = 'ds-footer-buttons';
        footer.appendChild(footerButtons);

        // 导出配置按钮
        const exportBtn = document.createElement('button');
        exportBtn.className = 'ds-btn-secondary';
        exportBtn.innerText = '📤 导出';
        exportBtn.title = '导出当前配置';
        exportBtn.onclick = () => {
            const exportData = {
                apiConfigs: apiConfigs,
                currentApiIndex: currentApiIndex,
                exportTime: new Date().toISOString()
            };
            const dataStr = JSON.stringify(exportData, null, 2);
            const dataBlob = new Blob([dataStr], { type: 'application/json' });
            const url = URL.createObjectURL(dataBlob);
            const link = document.createElement('a');
            link.href = url;
            link.download = `api-configs-${Date.now()}.json`;
            link.click();
            URL.revokeObjectURL(url);
        };
        footerButtons.appendChild(exportBtn);

        // 导入配置按钮
        const importBtn = document.createElement('button');
        importBtn.className = 'ds-btn-secondary';
        importBtn.innerText = '📥 导入';
        importBtn.title = '导入配置文件';
        importBtn.onclick = () => {
            const input = document.createElement('input');
            input.type = 'file';
            input.accept = '.json';
            input.onchange = (e) => {
                const file = e.target.files[0];
                if (file) {
                    const reader = new FileReader();
                    reader.onload = (event) => {
                        try {
                            const data = JSON.parse(event.target.result);
                            if (data.apiConfigs && Array.isArray(data.apiConfigs)) {
                                if (confirm(`确定要导入 ${data.apiConfigs.length} 个服务配置吗？\n当前配置将被覆盖。`)) {
                                    apiConfigs = data.apiConfigs;
                                    currentApiIndex = data.currentApiIndex || 0;
                                    GM_setValue('apiConfigs', apiConfigs);
                                    GM_setValue('currentApiIndex', currentApiIndex);
                                    renderServicesList();
                                    updateCurrentServiceInfo();
                                    alert('配置导入成功！');
                                }
                            } else {
                                alert('配置文件格式不正确');
                            }
                        } catch (error) {
                            alert('解析配置文件失败: ' + error.message);
                        }
                    };
                    reader.readAsText(file);
                }
            };
            input.click();
        };
        footerButtons.appendChild(importBtn);

        // 保存按钮
        const saveBtn = document.createElement('button');
        saveBtn.className = 'ds-btn-primary';
        saveBtn.innerText = '💾 保存';
        saveBtn.title = '保存所有配置';
        saveBtn.onclick = () => {
            GM_setValue('apiConfigs', apiConfigs);
            GM_setValue('currentApiIndex', currentApiIndex);
            alert('配置已保存！');
        };
        footerButtons.appendChild(saveBtn);

        // 关闭按钮
        const closeFooterBtn = document.createElement('button');
        closeFooterBtn.className = 'ds-btn-secondary';
        closeFooterBtn.innerText = '❌ 关闭';
        closeFooterBtn.onclick = () => {
            document.body.removeChild(overlay);
        };
        footerButtons.appendChild(closeFooterBtn);

        // 初始渲染
        renderServicesList();
        updateCurrentServiceInfo();

        // 事件监听
        closeBtn.addEventListener('click', () => {
            document.body.removeChild(overlay);
        });

        overlay.addEventListener('click', (e) => {
            if (e.target === overlay) {
                document.body.removeChild(overlay);
            }
        });
    }

    // 检查是否已经存在图标
    if (!document.querySelector('.ds-chat-icon')) {
        // 创建UI元素
        const icon = document.createElement('div');
        icon.className = 'ds-chat-icon';
        
        // 尝试创建图标
        function createIcon() {
            const iconUrls = [];
            
            // 尝试获取主图标
            try {
                const mainIconUrl = GM_getResourceURL('icon');
                if (mainIconUrl) iconUrls.push(mainIconUrl);
            } catch (e) {
                console.warn('获取主图标失败:', e);
            }
            
            // 尝试获取备用图标
            try {
                const backupIconUrl = GM_getResourceURL('icon_backup');
                if (backupIconUrl) iconUrls.push(backupIconUrl);
            } catch (e) {
                console.warn('获取备用图标失败:', e);
            }
            
            // 添加外部图标URL作为最后备用
            iconUrls.push(
                'https://img.alicdn.com/imgextra/i2/O1CN01bYc1m81RrcSAyOjMu_!!6000000002165-54-tps-60-60.apng',
                'https://cdn.jsdelivr.net/gh/simple-icons/simple-icons/icons/deepseek.svg'
            );
            
            // 尝试加载图标
            function tryLoadIcon(urls, index = 0) {
                if (index >= urls.length) {
                    console.warn('所有图标URL都失败，使用emoji');
                    useEmojiIcon();
                    return;
                }
                
                const url = urls[index];
                const img = document.createElement('img');
                img.src = url;
                img.alt = '💬';
                img.title = 'Deepseek Chat';
                
                img.onerror = () => {
                    console.warn(`图标加载失败 [${index}]:`, url);
                    tryLoadIcon(urls, index + 1);
                };
                
                img.onload = () => {
                    console.log(`图标加载成功 [${index}]:`, url);
                    icon.appendChild(img);
                };
                
                // 如果3秒内没有加载成功，尝试下一个
                setTimeout(() => {
                    if (!icon.contains(img) && img.parentNode === null) {
                        console.warn(`图标加载超时 [${index}]:`, url);
                        tryLoadIcon(urls, index + 1);
                    }
                }, 3000);
            }
            
            // 开始尝试加载图标
            tryLoadIcon(iconUrls);
        }
        
        // 使用emoji图标
        function useEmojiIcon() {
            icon.innerHTML = '💬';
            icon.style.fontSize = '24px';
            icon.style.fontWeight = 'bold';
            icon.style.textShadow = '0 2px 4px rgba(0,0,0,0.3)';
            icon.style.display = 'flex';
            icon.style.alignItems = 'center';
            icon.style.justifyContent = 'center';
        }
        
        // 创建图标
        createIcon();
        
        document.body.appendChild(icon);

        // 确保图标位置固定在右下角5px处
        icon.style.position = 'fixed';
        icon.style.bottom = '5px';
        icon.style.right = '5px';
        icon.style.zIndex = '2147483647';
        icon.style.display = 'flex';

        const chatWindow = document.createElement('div');
        chatWindow.className = 'ds-chat-window';
        document.body.appendChild(chatWindow);

        const chatHeader = document.createElement('div');
        chatHeader.className = 'ds-chat-header';
        chatWindow.appendChild(chatHeader);

        const chatTitle = document.createElement('div');
        chatTitle.className = 'ds-chat-title';
        chatTitle.innerText = 'Deepseek Chat';
        chatHeader.appendChild(chatTitle);

        const headerButtons = document.createElement('div');
        headerButtons.style.display = 'flex';
        headerButtons.style.alignItems = 'center';
        headerButtons.style.gap = '5px';
        chatHeader.appendChild(headerButtons);

        const fullscreenBtn = document.createElement('div');
        fullscreenBtn.className = 'ds-chat-fullscreen';
        fullscreenBtn.innerText = '🔘';
        fullscreenBtn.title = '全屏/窗口';
        headerButtons.appendChild(fullscreenBtn);

        const closeBtn = document.createElement('div');
        closeBtn.className = 'ds-chat-close';
        closeBtn.innerText = '×';
        closeBtn.title = '关闭';
        headerButtons.appendChild(closeBtn);

        const chatContent = document.createElement('div');
        chatContent.className = 'ds-chat-content';
        chatWindow.appendChild(chatContent);

        const inputArea = document.createElement('div');
        inputArea.className = 'ds-chat-input-area';
        chatWindow.appendChild(inputArea);

        const contextToggle = document.createElement('div');
        contextToggle.className = 'ds-context-toggle';
        inputArea.appendChild(contextToggle);

        const contextCheckbox = document.createElement('input');
        contextCheckbox.type = 'checkbox';
        contextCheckbox.id = 'ds-context-checkbox';
        contextCheckbox.checked = config.usePageContext;
        contextToggle.appendChild(contextCheckbox);

        const contextLabel = document.createElement('label');
        contextLabel.htmlFor = 'ds-context-checkbox';
        contextLabel.innerText = '🌐 使用网页上下文';
        contextToggle.appendChild(contextLabel);

        const inputBox = document.createElement('textarea');
        inputBox.className = 'ds-chat-input';
        inputBox.placeholder = '输入你的问题...';
        inputBox.rows = 2;
        inputBox.style.padding = '8px 10px';
        inputArea.appendChild(inputBox);

        const settingsArea = document.createElement('div');
        settingsArea.className = 'ds-chat-settings';
        inputArea.appendChild(settingsArea);

        // 服务选择下拉菜单
        const serviceSelect = document.createElement('select');
        serviceSelect.className = 'ds-service-select';
        serviceSelect.title = '选择当前使用的API服务';
        
        // 模型选择下拉菜单
        const modelSelect = document.createElement('select');
        modelSelect.className = 'ds-model-select';
        modelSelect.title = '选择当前使用的模型';
        
        // 填充服务选项
        function updateServiceSelect() {
            serviceSelect.innerHTML = '';
            apiConfigs.forEach((config, index) => {
                const option = document.createElement('option');
                option.value = index;
                option.textContent = `${config.name}${index === currentApiIndex ? ' (当前)' : ''}`;
                if (index === currentApiIndex) {
                    option.selected = true;
                }
                serviceSelect.appendChild(option);
            });
            
            if (apiConfigs.length === 0) {
                const option = document.createElement('option');
                option.value = -1;
                option.textContent = '⚠️ 请先配置服务';
                serviceSelect.appendChild(option);
            }
        }
        
        // 填充模型选项
        function updateModelSelect() {
            modelSelect.innerHTML = '';
            const currentApi = getCurrentApiConfig();
            
            if (currentApi && currentApi.models && currentApi.models.length > 0) {
                currentApi.models.forEach((model, index) => {
                    const option = document.createElement('option');
                    option.value = model;
                    option.textContent = model;
                    // 如果当前配置的模型是这个，就选中它
                    if (index === 0) { // 默认选中第一个模型
                        option.selected = true;
                    }
                    modelSelect.appendChild(option);
                });
            } else {
                const option = document.createElement('option');
                option.value = '';
                option.textContent = '无可用模型';
                modelSelect.appendChild(option);
            }
        }
        
        // 更新当前配置的模型
        function updateCurrentModel() {
            const currentApi = getCurrentApiConfig();
            if (currentApi && modelSelect.value) {
                // 更新当前服务的默认模型为选中的模型
                if (currentApi.models && currentApi.models.length > 0) {
                    // 将选中的模型移到第一个位置
                    const selectedModel = modelSelect.value;
                    const modelIndex = currentApi.models.indexOf(selectedModel);
                    if (modelIndex > 0) {
                        currentApi.models.splice(modelIndex, 1);
                        currentApi.models.unshift(selectedModel);
                        GM_setValue('apiConfigs', apiConfigs);
                    }
                }
            }
        }
        
        // 更新全局的getCurrentModel函数，使其能够获取模型选择器的值
        const originalGetCurrentModel = window.getCurrentModel;
        window.getCurrentModel = function() {
            const currentApi = getCurrentApiConfig();
            if (currentApi && currentApi.models && currentApi.models.length > 0) {
                // 优先使用模型选择器的值，如果没有则使用第一个模型
                if (modelSelect && modelSelect.value) {
                    return modelSelect.value;
                }
                return currentApi.models[0];
            }
            return 'deepseek-chat'; // 默认模型
        };
        
        updateServiceSelect();
        updateModelSelect();
        
        serviceSelect.addEventListener('change', (e) => {
            const newIndex = parseInt(e.target.value);
            if (newIndex >= 0 && newIndex < apiConfigs.length) {
                setCurrentApiConfig(newIndex);
                updateServiceSelect();
                updateModelSelect(); // 更新模型选择器
                // 显示切换成功提示
                showNotification(`已切换到: ${apiConfigs[newIndex].name}`);
            }
        });
        
        modelSelect.addEventListener('change', (e) => {
            updateCurrentModel();
            showNotification(`已选择模型: ${e.target.value}`);
        });
        
        settingsArea.appendChild(serviceSelect);
        settingsArea.appendChild(modelSelect);

        const settingsBtn = document.createElement('span');
        settingsBtn.className = 'ds-chat-settings-btn';
        settingsBtn.innerText = '⚙️ 设置';
        settingsArea.appendChild(settingsBtn);

        const clearBtn = document.createElement('span');
        clearBtn.className = 'ds-chat-settings-btn';
        clearBtn.innerText = '🗑️ 清空';
        settingsArea.appendChild(clearBtn);

        // 显示通知消息
        function showNotification(message) {
            const notification = document.createElement('div');
            notification.className = 'ds-notification';
            notification.textContent = message;
            document.body.appendChild(notification);

            // 3秒后自动移除
            setTimeout(() => {
                notification.style.animation = 'fadeOut 0.5s ease-in-out forwards';
                setTimeout(() => {
                    if (notification.parentNode) {
                        document.body.removeChild(notification);
                    }
                }, 500);
            }, 2500);
        }

        // 显示历史消息 - 异步版本，确保资源加载完成后再渲染
        async function displayHistory() {
            chatContent.innerHTML = '';
            
            // 先加载Markdown渲染资源
            await loadMarkdownResources();
            
            // 渲染历史消息
            config.chatHistory.forEach(msg => {
                const msgDiv = document.createElement('div');
                msgDiv.className = `ds-chat-message ds-${msg.role}-message`;
                msgDiv.innerHTML = `<div class="ds-message-content">${renderMarkdown(msg.content)}</div>`;
                chatContent.appendChild(msgDiv);
            });
            
            // 渲染代码高亮和图表
            renderCodeHighlight(chatContent);
            renderMermaidDiagrams(chatContent);
            
            // 滚动到底部
            setTimeout(() => {
                chatContent.scrollTop = chatContent.scrollHeight;
            }, 0);
        }

        // 渲染所有内容
        function renderAllContent() {
            loadMarkdownResources().then(() => {
                // 渲染代码高亮
                renderCodeHighlight(chatContent);
                // 渲染Mermaid图表
                renderMermaidDiagrams(chatContent);
                // 重新渲染数学公式占位符
                rerenderMathPlaceholders();
            });
        }

        displayHistory();

        // 事件监听
        icon.addEventListener('click', () => {
            chatWindow.classList.toggle('active');
            icon.style.display = 'none';
            setTimeout(() => {
                chatContent.scrollTop = chatContent.scrollHeight;
            }, 0);
        });

        closeBtn.addEventListener('click', () => {
            // 添加关闭动画
            chatWindow.style.animation = 'fadeOut 0.5s ease-in-out forwards';

            // 保存当前是否全屏状态
            const isFullscreen = chatWindow.classList.contains('fullscreen');

            // 动画结束后隐藏窗口并重置样式
            const handleAnimationEnd = () => {
                chatWindow.classList.remove('active');
                // 如果是全屏状态，先移除全屏类
                if (isFullscreen) {
                    chatWindow.classList.remove('fullscreen');
                }
                chatWindow.style.animation = '';
                icon.style.display = 'flex';
                chatWindow.removeEventListener('animationend', handleAnimationEnd);
            };

            chatWindow.addEventListener('animationend', handleAnimationEnd);
        });

        fullscreenBtn.addEventListener('click', () => {
            chatWindow.classList.toggle('fullscreen');
            if (chatWindow.classList.contains('fullscreen')) {
                fullscreenBtn.innerText = '🔳';
                fullscreenBtn.title = '退出全屏';
            } else {
                fullscreenBtn.innerText = '🔘';
                fullscreenBtn.title = '全屏';
            }
            // 重新计算滚动位置
            setTimeout(() => {
                chatContent.scrollTop = chatContent.scrollHeight;
            }, 100);
        });

        contextCheckbox.addEventListener('change', () => {
            config.usePageContext = contextCheckbox.checked;
            GM_setValue('usePageContext', config.usePageContext);
        });

        settingsBtn.addEventListener('click', () => {
            openSettingsModal();
        });

        clearBtn.addEventListener('click', () => {
            if (confirm('确定要清空所有聊天记录吗？')) {
                config.chatHistory = [];
                GM_setValue('chatHistory', config.chatHistory);
                chatContent.innerHTML = '';
            }
        });

        /**
         * 获取网页主要内容
         */
        function getPageContent() {
            const metaTags = Array.from(document.querySelectorAll('meta'));
            const metaInfo = metaTags.map(tag => {
                const name = tag.getAttribute('name') || tag.getAttribute('property') || '';
                const content = tag.getAttribute('content') || '';
                return { name, content };
            }).filter(meta => meta.content);

            const allText = document.body.innerText
                .replace(/[\n\r\t]+/g, ' ')
                .replace(/\s{2,}/g, ' ')
                .trim();

            const MAX_LENGTH = 20000;
            let content = `
[网页元信息]
标题: ${document.title}
URL: ${window.location.href}
字符集: ${document.characterSet}
语言: ${document.documentElement.lang || '未指定'}

[元标签]
${metaInfo.map(meta => `${meta.name}: ${meta.content}`).join('\n')}

[主要内容摘要]
${allText.substring(0, MAX_LENGTH / 2)}${allText.length > MAX_LENGTH / 2 ? '...' : ''}
            `;

            if (content.length > MAX_LENGTH) {
                content = content.substring(0, MAX_LENGTH) + '...';
            }

            return {
                url: window.location.href,
                title: document.title,
                content,
                charset: document.characterSet,
                wordCount: content.split(/\s+/).length
            };
        }

        // 流式响应处理
        function handleStreamResponse(response, aiMsgDiv) {
            return new Promise((resolve, reject) => {
                let reasoningMessage = '';
                let contentMessage = '';
                const thinkingMsg = document.querySelector('.ds-thinking');
                if (thinkingMsg && thinkingMsg.parentNode) {
                    thinkingMsg.parentNode.removeChild(thinkingMsg);
                }

                aiMsgDiv.innerHTML = '';

                // 创建思维内容容器
                const reasoningDiv = document.createElement('div');
                reasoningDiv.className = 'ds-reasoning-content';
                aiMsgDiv.appendChild(reasoningDiv);

                // 创建最终内容容器
                const contentDiv = document.createElement('div');
                contentDiv.className = 'ds-message-content';
                aiMsgDiv.appendChild(contentDiv);

                let lastRenderTime = 0;
                const renderDelay = 200;

                const decoder = new TextDecoder();
                let buffer = '';
                const reader = response.response.getReader();

                function readStream() {
                    reader.read().then(({done, value}) => {
                        if (done) {
                            // 确保最终内容被渲染
                            contentDiv.innerHTML = renderMarkdown(contentMessage);
                            chatContent.scrollTop = chatContent.scrollHeight;

                            // 渲染所有内容
                            renderAllContent();

                            if (contentMessage.trim()) {
                                config.chatHistory.push({ role: 'assistant', content: contentMessage });
                                GM_setValue('chatHistory', config.chatHistory);
                            }
                            resolve();
                            return;
                        }

                        buffer += decoder.decode(value, {stream: true});
                        const lines = buffer.split('\n');
                        buffer = lines.pop() || '';

                        for (const line of lines) {
                            if (!line.trim() || line === 'data: [DONE]') continue;
                            if (line.startsWith('data: ')) {
                                try {
                                    const data = JSON.parse(line.slice(6));
                                    // 处理思维内容
                                    if (data.choices?.[0]?.delta?.reasoning_content) {
                                        reasoningMessage += data.choices[0].delta.reasoning_content;
                                        reasoningDiv.innerHTML = renderMarkdown(reasoningMessage);
                                    }
                                    // 处理最终内容
                                    if (data.choices?.[0]?.delta?.content) {
                                        contentMessage += data.choices[0].delta.content;
                                        // 性能优化:限制渲染频率
                                        const now = Date.now();
                                        if (now - lastRenderTime > renderDelay) {
                                            contentDiv.innerHTML = renderMarkdown(contentMessage);
                                            lastRenderTime = now;
                                        }
                                    }
                                } catch (e) {
                                    console.warn('解析响应数据失败:', e);
                                }
                            }
                        }

                        // 实时滚动到底部
                        chatContent.scrollTop = chatContent.scrollHeight;
                        readStream();
                    }).catch(error => {
                        reject(error);
                    });
                }

                readStream();
            });
        }

        // 计算消息的 token 数量
        function countTokens(text) {
            return Math.ceil(text.length / 2);
        }

        // 检查并截断上下文
        function truncateContext(messages, maxContextTokens) {
            let totalTokens = 0;
            for (let i = messages.length - 1; i >= 0; i--) {
                const messageTokens = countTokens(messages[i].content);
                if (totalTokens + messageTokens > maxContextTokens) {
                    messages.splice(0, i);
                    break;
                }
                totalTokens += messageTokens;
            }
            return messages;
        }

        // 发送消息函数
        async function sendMessage(message, retryCount = 0) {
            if (!message.trim()) return;

            if (!getCurrentConfig().apiKey) {
                alert('请先设置 API 密钥！');
                settingsBtn.click();
                return;
            }

            if (!navigator.onLine) {
                const errorMsgDiv = document.createElement('div');
                errorMsgDiv.className = 'ds-chat-message ds-error';
                errorMsgDiv.innerText = '错误: 网络连接已断开,请检查网络后重试';
                chatContent.appendChild(errorMsgDiv);
                chatContent.scrollTop = chatContent.scrollHeight;
                return;
            }

            const userMsg = { role: 'user', content: message };
            config.chatHistory.push(userMsg);
            GM_setValue('chatHistory', config.chatHistory);

            const userMsgDiv = document.createElement('div');
            userMsgDiv.className = 'ds-chat-message ds-user-message';
            userMsgDiv.innerHTML = `<div class="ds-message-content">${renderMarkdown(message)}</div>`;
            chatContent.appendChild(userMsgDiv);

            const thinkingMsgDiv = document.createElement('div');
            thinkingMsgDiv.className = 'ds-chat-message ds-thinking';
            thinkingMsgDiv.innerText = '思考中...';
            chatContent.appendChild(thinkingMsgDiv);

            const aiMsgDiv = document.createElement('div');
            aiMsgDiv.className = 'ds-chat-message ds-ai-message';
            chatContent.appendChild(aiMsgDiv);

            chatContent.scrollTop = chatContent.scrollHeight;

            const currentConfig = getCurrentConfig();
            const requestData = {
                model: currentConfig.model,
                messages: [
                    { role: 'system', content: config.personalityPrompt },
                    ...truncateContext(config.chatHistory, currentConfig.maxContextTokens)
                ],
                temperature: currentConfig.temperature,
                max_tokens: currentConfig.maxTokens,
                stream: true,
            };

            if (config.usePageContext) {
                const pageContent = getPageContent();
                requestData.messages.splice(1, 0, {
                    role: 'system',
                    content: `[当前网页全景信息]
${pageContent.content}

以下是AI渲染指南，请严格遵守：

1. 数学公式渲染：
   - 行内公式：使用 $e^{i\pi} + 1 = 0$
   - 块级公式：使用 $$\\int_{-\infty}^{\infty} e^{-x^2} dx = \\sqrt{\\pi}$$

2. 表格渲染：
   - 使用标准Markdown表格语法
   - 示例：
     | 常数名称 | 符号 | 近似值 | 描述 |
     | :--- | :---: | :--- | :--- |
     | 圆周率 | π | 3.1415926535 | 圆的周长与直径之比 |
     | 自然常数 | e | 2.7182818284 | 自然对数的底数 |
     | 黄金分割率 | φ | 1.6180339887 | \\frac{1+\\sqrt{5}}{2} |

3. 增强渲染功能：
   - 标题：使用 # 到 ###### 创建渐变色标题
   - 列表：使用 -、*、+ 或数字创建列表
   - 任务列表：使用 - [ ] 和 - [x]
   - 内联代码：使用 \`code\` 包裹
   - 链接：[文本](URL)
   - 块引用：使用 > 开头
   - 水平线：使用 ---、*** 或 ___

4. 样式增强：
   - 重要文本：使用 **加粗** 或 *斜体*
   - 颜色渲染：使用内联CSS，如 <span style="color: #ff6b6b; font-weight: bold">红色加粗</span>
   - 渐变文本：标题自动应用渐变色
   - 代码块：深色背景+语言标识

5. 禁止使用：
   - 代码块渲染（使用内联代码代替）
   - 图表渲染（Mermaid等）

请根据用户问题，使用上述渲染方式组织回答，确保数学公式和表格正确显示。`
                });
            }

            try {
                return new Promise((resolve, reject) => {
                    let timeoutId = setTimeout(() => {
                        reject(new Error('请求超时'));
                    }, 30000);

                    GM_xmlhttpRequest({
                        method: 'POST',
                        url: currentConfig.apiUrl,
                        headers: {
                            'Content-Type': 'application/json',
                            'Authorization': `Bearer ${currentConfig.apiKey}`,
                            'Accept': 'text/event-stream'
                        },
                        responseType: 'stream',
                        data: JSON.stringify(requestData),
                        onloadstart: (response) => {
                            try {
                                handleStreamResponse(response, aiMsgDiv)
                                    .then(resolve)
                                    .catch(reject);
                            } catch (error) {
                                reject(error);
                            }
                        },
                        onerror: (error) => {
                            clearTimeout(timeoutId);
                            chatContent.removeChild(thinkingMsgDiv);
                            reject(new Error('请求失败: ' + error.statusText));
                        },
                        ontimeout: () => {
                            clearTimeout(timeoutId);
                            chatContent.removeChild(thinkingMsgDiv);
                            reject(new Error('请求超时'));
                        }
                    });
                });
            } catch (error) {
                if (thinkingMsgDiv.parentNode) {
                    chatContent.removeChild(thinkingMsgDiv);
                }

                let errorMessage = '发生未知错误';
                if (error.message.includes('timeout')) {
                    errorMessage = '请求超时,请检查网络连接';
                } else if (error.message.includes('Failed to fetch') || error.message.includes('请求失败')) {
                    errorMessage = '无法连接到服务器,请检查:\n1. 网络连接\n2. API地址是否正确\n3. 是否开启了代理/VPN';
                } else if (error.message.includes('401')) {
                    errorMessage = 'API密钥无效或已过期,请重新设置';
                } else if (error.message.includes('429')) {
                    errorMessage = '请求过于频繁,请稍后再试';
                } else {
                    errorMessage = `错误: ${error.message}`;
                }

                const errorMsgDiv = document.createElement('div');
                errorMsgDiv.className = 'ds-chat-message ds-error';
                errorMsgDiv.innerText = errorMessage;
                chatContent.appendChild(errorMsgDiv);
                chatContent.scrollTop = chatContent.scrollHeight;

                if ((error.message.includes('Failed to fetch') || error.message.includes('请求失败') || error.message.includes('timeout')) && retryCount < 3) {
                    const retryMsgDiv = document.createElement('div');
                    retryMsgDiv.className = 'ds-chat-message ds-thinking';
                    retryMsgDiv.innerText = `连接失败,正在第${retryCount + 1}次重试...`;
                    chatContent.appendChild(retryMsgDiv);

                    setTimeout(() => {
                        chatContent.removeChild(retryMsgDiv);
                        return sendMessage(message, retryCount + 1);
                    }, 2000);
                }
            }
        }

        // 输入框事件
        inputBox.addEventListener('keydown', (e) => {
            if (e.key === 'Enter' && !e.shiftKey) {
                e.preventDefault();
                const message = inputBox.value.trim();
                if (message) {
                    sendMessage(message);
                    inputBox.value = '';
                }
            }
        });

        // 注册菜单命令
        GM_registerMenuCommand("设置DeepSeek API", () => settingsBtn.click());
        GM_registerMenuCommand("清空聊天历史", () => clearBtn.click());
        GM_registerMenuCommand("切换网页上下文", () => {
            contextCheckbox.checked = !contextCheckbox.checked;
            config.usePageContext = contextCheckbox.checked;
            GM_setValue('usePageContext', config.usePageContext);
        });
    }
})();