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							<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>HTML综合学习文档</title>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
    <style>
        /* 全局样式重置 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        /* CSS变量定义 */
        :root {
            --primary: #4361ee;
            --secondary: #3f37c9;
            --accent: #4cc9f0;
            --light: #f8f9fa;
            --dark: #212529;
            --success: #4CAF50;
            --warning: #ff9800;
            --danger: #f44336;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --border-radius: 8px;
            --transition: all 0.3s ease;
            --text-light: #f8f9fa;
            --text-dark: #212529;
            --bg: #f5f7fa;
            --card-bg: #ffffff;
            --header-bg: #4361ee;
            --sidebar-bg: #f0f2f5;
        }

        .dark-theme {
            --bg: #1a1a2e;
            --card-bg: #16213e;
            --text-dark: #f0f0f0;
            --header-bg: #0f3460;
            --sidebar-bg: #1a1a2e;
        }

        /* 页面基础样式 */
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-dark);
            background-color: var(--bg);
            min-height: 100vh;
            display: grid;
            grid-template-columns: 280px 1fr;
            grid-template-rows: 70px 1fr 50px;
            grid-template-areas:
                "header header"
                "sidebar main"
                "footer footer";
            transition: var(--transition);
        }

        /* 页头样式 */
        header {
            grid-area: header;
            background: var(--header-bg);
            color: var(--text-light);
            padding: 0 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            box-shadow: var(--shadow);
            z-index: 100;
        }

        .logo {
            font-size: 1.8rem;
            font-weight: bold;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .theme-toggle {
            background: var(--accent);
            color: var(--text-dark);
            border: none;
            padding: 8px 15px;
            border-radius: 20px;
            cursor: pointer;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }

        .theme-toggle:hover {
            background: #3fb8da;
        }

        /* 侧边栏样式 */
        aside {
            grid-area: sidebar;
            background: var(--sidebar-bg);
            padding: 20px;
            overflow-y: auto;
            border-right: 1px solid rgba(0,0,0,0.1);
        }

        .sidebar-section {
            margin-bottom: 25px;
        }

        .sidebar-section h3 {
            color: var(--primary);
            margin-bottom: 15px;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--accent);
        }

        .sidebar-links {
            list-style: none;
        }

        .sidebar-links li {
            margin-bottom: 8px;
        }

        .sidebar-links a {
            text-decoration: none;
            color: var(--text-dark);
            display: block;
            padding: 8px 12px;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }

        .sidebar-links a:hover {
            background: var(--primary);
            color: white;
        }

        .sidebar-links a i {
            width: 25px;
            text-align: center;
        }

        /* 主内容区样式 */
        main {
            grid-area: main;
            padding: 2rem;
            overflow-y: auto;
        }

        .section-card {
            background: var(--card-bg);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            padding: 1.8rem;
            margin-bottom: 2rem;
            transition: var(--transition);
        }

        .section-card h2 {
            color: var(--primary);
            margin-bottom: 1.5rem;
            padding-bottom: 0.8rem;
            border-bottom: 2px solid var(--accent);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .section-card h3 {
            color: var(--secondary);
            margin: 1.2rem 0 0.8rem;
        }

        /* 表格样式 */
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.2rem 0;
            background: var(--card-bg);
            box-shadow: var(--shadow);
            border-radius: var(--border-radius);
            overflow: hidden;
        }

        table th, table td {
            padding: 0.9rem;
            text-align: left;
            border-bottom: 1px solid rgba(0,0,0,0.1);
        }

        table th {
            background-color: var(--primary);
            color: white;
        }

        table tr:hover {
            background-color: rgba(0,0,0,0.03);
        }

        /* 表单样式 */
        .form-group {
            margin-bottom: 1.2rem;
        }

        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
        }

        input, select, textarea {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ddd;
            border-radius: var(--border-radius);
            font-size: 1rem;
            background: var(--card-bg);
            color: var(--text-dark);
            transition: var(--transition);
        }

        input:focus, select:focus, textarea:focus {
            border-color: var(--accent);
            outline: none;
            box-shadow: 0 0 0 3px rgba(76, 201, 240, 0.3);
        }

        button, .btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-size: 1rem;
            font-weight: 500;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        button:hover, .btn:hover {
            background: var(--secondary);
            transform: translateY(-2px);
        }

        .btn-success {
            background: var(--success);
        }

        .btn-warning {
            background: var(--warning);
        }

        .btn-danger {
            background: var(--danger);
        }

        /* 列表样式 */
        ul, ol {
            margin-left: 1.8rem;
            margin-bottom: 1.2rem;
        }

        li {
            margin-bottom: 0.5rem;
        }

        /* 页脚样式 */
        footer {
            grid-area: footer;
            background: var(--dark);
            color: var(--text-light);
            text-align: center;
            padding: 1rem;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        /* 实用工具类 */
        .flex {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
        }

        .text-center {
            text-align: center;
        }

        .mt-2 {
            margin-top: 2rem;
        }

        .mb-2 {
            margin-bottom: 2rem;
        }

        .p-3 {
            padding: 1.5rem;
        }

        .example-box {
            background: rgba(67, 97, 238, 0.1);
            border-left: 4px solid var(--primary);
            padding: 1.2rem;
            margin: 1.2rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }

        .code-block {
            background: #2d2d2d;
            color: #f8f8f2;
            padding: 1.2rem;
            border-radius: var(--border-radius);
            margin: 1.2rem 0;
            overflow: auto;
            font-family: 'Courier New', monospace;
        }

        .tag-example {
            background: var(--light);
            padding: 15px;
            border-radius: var(--border-radius);
            margin: 15px 0;
        }

        /* 响应式设计 */
        @media (max-width: 900px) {
            body {
                grid-template-columns: 1fr;
                grid-template-areas:
                    "header"
                    "main"
                    "footer";
            }
            
            aside {
                display: none;
            }
            
            .mobile-menu-btn {
                display: block;
            }
        }

        @media (max-width: 600px) {
            .flex {
                flex-direction: column;
            }
            
            .grid {
                grid-template-columns: 1fr;
            }
        }
    </style>
</head>
<body>
    <!-- 页头区域 -->
    <header>
        <div class="logo">
            <i class="fab fa-html5"></i>
            <span>HTML综合学习文档</span>
        </div>
        <button class="theme-toggle" id="themeToggle">
            <i class="fas fa-moon"></i>
            <span>暗色模式</span>
        </button>
    </header>
    
    <!-- 侧边栏导航 -->
    <aside>
        <div class="sidebar-section">
            <h3><i class="fas fa-book"></i> HTML基础</h3>
            <ul class="sidebar-links">
                <li><a href="#basic-structure"><i class="fas fa-code"></i> 基本结构标签</a></li>
                <li><a href="#text-tags"><i class="fas fa-heading"></i> 文本标签</a></li>
                <li><a href="#multimedia"><i class="fas fa-image"></i> 多媒体标签</a></li>
                <li><a href="#links"><i class="fas fa-link"></i> 超链接标签</a></li>
                <li><a href="#tables"><i class="fas fa-table"></i> 表格标签</a></li>
                <li><a href="#lists"><i class="fas fa-list"></i> 列表标签</a></li>
            </ul>
        </div>
        
        <div class="sidebar-section">
            <h3><i class="fas fa-edit"></i> 表单元素</h3>
            <ul class="sidebar-links">
                <li><a href="#forms"><i class="fas fa-window-maximize"></i> 表单基础</a></li>
                <li><a href="#inputs"><i class="fas fa-keyboard"></i> 输入类型</a></li>
                <li><a href="#html5-forms"><i class="fab fa-html5"></i> HTML5表单</a></li>
            </ul>
        </div>
        
        <div class="sidebar-section">
            <h3><i class="fas fa-star"></i> HTML5特性</h3>
            <ul class="sidebar-links">
                <li><a href="#html5-tags"><i class="fas fa-tags"></i> 语义化标签</a></li>
                <li><a href="#html5-media"><i class="fas fa-play-circle"></i> 音视频</a></li>
                <li><a href="#html5-apis"><i class="fas fa-cogs"></i> 新API</a></li>
            </ul>
        </div>
    </aside>
    
    <!-- 主内容区域 -->
    <main>
        <!-- HTML基本结构 -->
        <section id="basic-structure" class="section-card">
            <h2><i class="fas fa-code"></i> HTML基本结构标签</h2>
            
            <table>
                <thead>
                    <tr>
                        <th>标签名</th>
                        <th>定义</th>
                        <th>说明</th>
                    </tr>
                </thead>
                <tbody>
                    <tr>
                        <td>&lt;html&gt;&lt;/html&gt;</td>
                        <td>HTML标签</td>
                        <td>页面中最大的标签，称为根标签</td>
                    </tr>
                    <tr>
                        <td>&lt;head&gt;&lt;/head&gt;</td>
                        <td>文档的头部</td>
                        <td>必须设置title标签</td>
                    </tr>
                    <tr>
                        <td>&lt;title&gt;&lt;/title&gt;</td>
                        <td>文档的标题</td>
                        <td>页面标题</td>
                    </tr>
                    <tr>
                        <td>&lt;body&gt;&lt;/body&gt;</td>
                        <td>文档的主体</td>
                        <td>包含文档的所有内容</td>
                    </tr>
                </tbody>
            </table>
            
            <h3>基本结构示例：</h3>
            <div class="code-block">
&lt;!DOCTYPE html&gt;
&lt;html lang="zh-CN"&gt;
&lt;head&gt;
    &lt;meta charset="UTF-8"&gt;
    &lt;title&gt;页面标题&lt;/title&gt;
&lt;/head&gt;
&lt;body&gt;
    &lt;h1&gt;我的第一个网页&lt;/h1&gt;
    &lt;p&gt;欢迎来到我的网站！&lt;/p&gt;
&lt;/body&gt;
&lt;/html&gt;
            </div>
        </section>
        
        <!-- 文本标签 -->
        <section id="text-tags" class="section-card">
            <h2><i class="fas fa-heading"></i> 文本标签</h2>
            
            <h3>标题标签 &lt;h1&gt; 到 &lt;h6&gt;</h3>
            <div class="tag-example">
                <h1>一级标题</h1>
                <h2>二级标题</h2>
                <h3>三级标题</h3>
                <h4>四级标题</h4>
                <h5>五级标题</h5>
                <h6>六级标题</h6>
            </div>
            
            <h3>文本格式化标签</h3>
            <table>
                <thead>
                    <tr>
                        <th>语义</th>
                        <th>标签</th>
                        <th>说明</th>
                    </tr>
                </thead>
                <tbody>
                    <tr>
                        <td>加粗</td>
                        <td>&lt;strong&gt; 或 &lt;b&gt;</td>
                        <td>推荐使用 &lt;strong&gt; 语义更强烈</td>
                    </tr>
                    <tr>
                        <td>倾斜</td>
                        <td>&lt;em&gt; 或 &lt;i&gt;</td>
                        <td>推荐使用 &lt;em&gt; 语义更强烈</td>
                    </tr>
                    <tr>
                        <td>删除线</td>
                        <td>&lt;del&gt; 或 &lt;s&gt;</td>
                        <td>推荐使用 &lt;del&gt; 语义更强烈</td>
                    </tr>
                    <tr>
                        <td>下划线</td>
                        <td>&lt;ins&gt; 或 &lt;u&gt;</td>
                        <td>推荐使用 &lt;ins&gt; 语义更强烈</td>
                    </tr>
                </tbody>
            </table>
            
            <div class="tag-example">
                <p><strong>加粗文本</strong> 和 <b>加粗文本</b></p>
                <p><em>倾斜文本</em> 和 <i>倾斜文本</i></p>
                <p><del>删除线文本</del> 和 <s>删除线文本</s></p>
                <p><ins>下划线文本</ins> 和 <u>下划线文本</u></p>
            </div>
            
            <h3>&lt;div&gt; 和 &lt;span&gt; 标签</h3>
            <div class="tag-example">
                <div style="background: #e0e0e0; padding: 10px; margin-bottom: 10px;">
                    这是一个div块级元素，通常用于布局容器
                </div>
                <p>这是一段文本，其中<span style="color: red; font-weight: bold;">span元素</span>用于对文本的一部分进行样式设置。</p>
            </div>
        </section>
        
        <!-- 多媒体标签 -->
        <section id="multimedia" class="section-card">
            <h2><i class="fas fa-image"></i> 多媒体标签</h2>
            
            <h3>图像标签 &lt;img&gt;</h3>
            <div class="flex">
                <div style="flex: 1;">
                    <h4>图像属性：</h4>
                    <ul>
                        <li><strong>src</strong>：图像路径（必须）</li>
                        <li><strong>alt</strong>：替代文本（图像无法显示时）</li>
                        <li><strong>title</strong>：悬停提示文本</li>
                    </ul>
                    
                    <h4 class="mt-2">路径示例：</h4>
                    <div class="example-box">
                        <p>&lt;img src="image.jpg" alt="描述"&gt; <span style="color: green;">// 同一级路径</span></p>
                        <p>&lt;img src="images/image.jpg"&gt; <span style="color: green;">// 下一级路径</span></p>
                        <p>&lt;img src="../image.jpg"&gt; <span style="color: green;">// 上一级路径</span></p>
                    </div>
                </div>
                <div style="flex: 1; text-align: center;">
                    <img src="https://via.placeholder.com/300x200" alt="占位图像" title="这是一个示例图像" style="max-width: 100%; border-radius: var(--border-radius);">
                    <p class="text-center mt-2">示例图像</p>
                </div>
            </div>
            
            <h3>音频标签 &lt;audio&gt;</h3>
            <div class="flex">
                <div style="flex: 1;">
                    <h4>属性：</h4>
                    <ul>
                        <li><strong>src</strong>：音频URL（必须）</li>
                        <li><strong>controls</strong>：显示控制面板</li>
                        <li><strong>loop</strong>：循环播放</li>
                        <li><strong>autoplay</strong>：自动播放</li>
                    </ul>
                </div>
                <div style="flex: 1;">
                    <audio controls style="width: 100%;">
                        <source src="https://www.soundhelix.com/examples/mp3/SoundHelix-Song-1.mp3" type="audio/mpeg">
                        您的浏览器不支持音频元素。
                    </audio>
                </div>
            </div>
            
            <h3>视频标签 &lt;video&gt;</h3>
            <div class="flex">
                <div style="flex: 1;">
                    <h4>属性：</h4>
                    <ul>
                        <li><strong>src</strong>：视频URL（必须）</li>
                        <li><strong>controls</strong>：显示控制面板</li>
                        <li><strong>muted</strong>：静音播放</li>
                        <li><strong>loop</strong>：循环播放</li>
                        <li><strong>autoplay</strong>：自动播放</li>
                        <li><strong>poster</strong>：加载等待画面</li>
                    </ul>
                </div>
                <div style="flex: 1;">
                    <video controls width="100%" poster="https://via.placeholder.com/300x200">
                        <source src="https://sample-videos.com/video123/mp4/720/big_buck_bunny_720p_1mb.mp4" type="video/mp4">
                        您的浏览器不支持视频元素。
                    </video>
                </div>
            </div>
        </section>
        
        <!-- 表单部分 -->
        <section id="forms" class="section-card">
            <h2><i class="fas fa-window-maximize"></i> 表单元素</h2>
            
            <h3>表单域 &lt;form&gt;</h3>
            <table>
                <thead>
                    <tr>
                        <th>属性</th>
                        <th>值</th>
                        <th>作用</th>
                    </tr>
                </thead>
                <tbody>
                    <tr>
                        <td>action</td>
                        <td>url地址</td>
                        <td>指定处理表单数据的服务器URL</td>
                    </tr>
                    <tr>
                        <td>method</td>
                        <td>get/post</td>
                        <td>设置表单数据的提交方式</td>
                    </tr>
                    <tr>
                        <td>name</td>
                        <td>名称</td>
                        <td>指定表单名称，区分多个表单</td>
                    </tr>
                </tbody>
            </table>
            
            <h3>输入元素 &lt;input&gt;</h3>
            <form id="exampleForm" class="tag-example">
                <div class="form-group">
                    <label for="username">用户名：</label>
                    <input type="text" id="username" name="username" placeholder="请输入用户名">
                </div>
                
                <div class="form-group">
                    <label for="password">密码：</label>
                    <input type="password" id="password" name="password" placeholder="请输入密码">
                </div>
                
                <div class="form-group">
                    <label>性别：</label>
                    <div style="display: flex; gap: 15px; margin-top: 8px;">
                        <label style="display: flex; align-items: center; gap: 5px;">
                            <input type="radio" name="gender" value="male" checked> 男
                        </label>
                        <label style="display: flex; align-items: center; gap: 5px;">
                            <input type="radio" name="gender" value="female"> 女
                        </label>
                    </div>
                </div>
                
                <div class="form-group">
                    <label>兴趣爱好：</label>
                    <div style="display: flex; flex-wrap: wrap; gap: 15px; margin-top: 8px;">
                        <label style="display: flex; align-items: center; gap: 5px;">
                            <input type="checkbox" name="hobby" value="reading"> 阅读
                        </label>
                        <label style="display: flex; align-items: center; gap: 5px;">
                            <input type="checkbox" name="hobby" value="sports"> 运动
                        </label>
                        <label style="display: flex; align-items: center; gap: 5px;">
                            <input type="checkbox" name="hobby" value="music"> 音乐
                        </label>
                    </div>
                </div>
                
                <div class="form-group">
                    <label for="country">国家：</label>
                    <select id="country" name="country">
                        <option value="">请选择国家</option>
                        <option value="china">中国</option>
                        <option value="usa">美国</option>
                        <option value="uk">英国</option>
                        <option value="japan">日本</option>
                    </select>
                </div>
                
                <div class="form-group">
                    <label for="bio">个人简介：</label>
                    <textarea id="bio" name="bio" rows="4" placeholder="请输入个人简介"></textarea>
                </div>
                
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                    <label for="avatar">上传头像：</label>
                    <input type="file" id="avatar" name="avatar">
                </div>
                
                <div class="flex">
                    <button type="submit" class="btn"><i class="fas fa-paper-plane"></i> 提交</button>
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                    <button type="button" class="btn btn-success"><i class="fas fa-download"></i> 保存</button>
                </div>
            </form>
        </section>
        
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            <h2><i class="fas fa-tags"></i> HTML5语义化标签</h2>
            
            <div class="tag-example" style="position: relative; height: 300px;">
                <header style="background: var(--primary); color: white; padding: 10px; text-align: center;">
                    &lt;header&gt; - 页面头部
                </header>
                
                <nav style="background: var(--secondary); color: white; padding: 10px; margin: 10px 0;">
                    &lt;nav&gt; - 导航栏
                </nav>
                
                <div style="display: flex; gap: 10px; height: 200px;">
                    <article style="background: #e0f7fa; flex: 3; padding: 10px;">
                        &lt;article&gt; - 主要内容
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                            &lt;section&gt; - 内容区块
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                    &lt;footer&gt; - 页脚
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            <h3>HTML5表单增强</h3>
            <form class="tag-example">
                <div class="grid">
                    <div class="form-group">
                        <label for="email">邮箱：</label>
                        <input type="email" id="email" placeholder="请输入邮箱" required>
                    </div>
                    
                    <div class="form-group">
                        <label for="url">个人网站：</label>
                        <input type="url" id="url" placeholder="请输入网址">
                    </div>
                    
                    <div class="form-group">
                        <label for="date">出生日期：</label>
                        <input type="date" id="date">
                    </div>
                    
                    <div class="form-group">
                        <label for="color">主题色：</label>
                        <input type="color" id="color" value="#4361ee">
                    </div>
                    
                    <div class="form-group">
                        <label for="range">音量：</label>
                        <input type="range" id="range" min="0" max="100" value="50">
                    </div>
                    
                    <div class="form-group">
                        <label for="search">搜索：</label>
                        <input type="search" id="search" placeholder="搜索内容">
                    </div>
                </div>
                
                <button type="submit" class="btn">提交HTML5表单</button>
            </form>
        </section>
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        <p>&copy; 2023 HTML综合学习文档 | 包含HTML5所有核心特性</p>
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