/* 用户手册优化样式 - 提升阅读体验 */

:root {
    --manual-bg: #ffffff;
    --manual-text: #24292f;
    --manual-text-secondary: #656d76;
    --manual-border: #d1d9e0;
    --manual-bg-secondary: #f6f8fa;
    --manual-bg-tertiary: #f3f4f6;
    --manual-primary: #0969da;
    --manual-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
    --manual-shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* 基础容器样式 */
.manual-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 24px 20px;
    margin-top: 80px;
    min-height: calc(100vh - 100px);
}

.manual-content {
    background: var(--manual-bg);
    border-radius: 12px;
    box-shadow: var(--manual-shadow);
    border: 1px solid var(--manual-border);
    padding: 48px 56px;
    line-height: 1.7;
    color: var(--manual-text);
    position: relative;
    transition: all 0.3s ease;
}

.manual-content:hover {
    box-shadow: var(--manual-shadow-hover);
    transform: translateY(-1px);
}

/* 优化GitHub Markdown基础样式 */
.markdown-body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    word-wrap: break-word;
}

/* 标题优化 */
.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
    margin-top: 32px;
    margin-bottom: 16px;
    font-weight: 600;
    line-height: 1.25;
    color: var(--manual-text);
    scroll-margin-top: 90px;
}

.markdown-body h1 {
    font-size: 2em;
    padding-bottom: 0.4em;
    border-bottom: 2px solid var(--manual-border);
    margin-top: 0;
}

.markdown-body h2 {
    font-size: 1.5em;
    padding-bottom: 0.3em;
    border-bottom: 1px solid var(--manual-border);
}

.markdown-body h3 {
    font-size: 1.25em;
    border-bottom: none;
}

/* 段落优化 */
.markdown-body p {
    margin-bottom: 16px;
    text-align: justify;
    text-justify: inter-ideograph;
}

/* 列表优化 */
.markdown-body ul,
.markdown-body ol {
    margin-bottom: 16px;
    padding-left: 2em;
}

.markdown-body li {
    margin-bottom: 6px;
    line-height: 1.6;
}

/* 引用块优化 */
.markdown-body blockquote {
    margin: 20px 0;
    padding: 16px 20px;
    background: var(--manual-bg-secondary);
    border-left: 4px solid var(--manual-primary);
    border-radius: 0 6px 6px 0;
    color: var(--manual-text-secondary);
}

.markdown-body blockquote p {
    margin-bottom: 0;
}

/* 代码块优化 */
.markdown-body code {
    background: var(--manual-bg-tertiary);
    color: var(--manual-primary);
    padding: 3px 6px;
    border-radius: 6px;
    font-size: 0.85em;
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}

.markdown-body pre {
    background: var(--manual-bg-secondary);
    border: 1px solid var(--manual-border);
    border-radius: 8px;
    padding: 16px;
    overflow: auto;
    font-size: 85%;
    line-height: 1.45;
}

.markdown-body pre code {
    background: transparent;
    padding: 0;
    font-size: 100%;
}

/* 表格优化 */
.markdown-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    border: 1px solid var(--manual-border);
    border-radius: 8px;
    overflow: hidden;
}

.markdown-body table th,
.markdown-body table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--manual-border);
}

.markdown-body table th {
    background: var(--manual-bg-secondary);
    font-weight: 600;
    color: var(--manual-text);
}

.markdown-body table tr:nth-child(even) {
    background: var(--manual-bg-tertiary);
}

.markdown-body table tr:hover {
    background: rgba(9, 105, 218, 0.04);
}

/* 链接优化 */
.markdown-body a {
    color: var(--manual-primary);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: all 0.2s ease;
}

.markdown-body a:hover {
    color: #0550ae;
    border-bottom-color: var(--manual-primary);
    text-decoration: underline;
}

/* 分割线优化 */
.markdown-body hr {
    height: 1px;
    border: none;
    background: var(--manual-border);
    margin: 32px 0;
}

/* 图片优化 */
.markdown-body img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: var(--manual-shadow);
    margin: 16px 0;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .manual-container {
        padding: 16px 12px;
        margin-top: 60px;
    }
    
    .manual-content {
        padding: 32px 24px;
        border-radius: 8px;
    }
    
    .markdown-body {
        font-size: 15px;
    }
    
    .markdown-body h1 {
        font-size: 1.8em;
    }
    
    .markdown-body h2 {
        font-size: 1.4em;
    }
    
    .markdown-body table th,
    .markdown-body table td {
        padding: 8px 12px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .manual-container {
        padding: 12px 8px;
        margin-top: 50px;
    }
    
    .manual-content {
        padding: 24px 20px;
        border-radius: 6px;
    }
    
    .markdown-body {
        font-size: 14px;
        line-height: 1.6;
    }
    
    .markdown-body h1 {
        font-size: 1.6em;
    }
    
    .markdown-body h2 {
        font-size: 1.3em;
    }
    
    .markdown-body pre {
        padding: 12px;
    }
    
    .markdown-body table th,
    .markdown-body table td {
        padding: 6px 8px;
        font-size: 13px;
    }
}

@media (max-width: 380px) {
    .manual-container {
        padding: 8px;
        margin-top: 45px;
    }
    
    .manual-content {
        padding: 20px 16px;
    }
    
    .markdown-body {
        font-size: 13px;
    }
    
    .markdown-body blockquote {
        padding: 12px 16px;
        margin: 16px 0;
    }
}

/* 打印样式优化 */
@media print {
    .manual-container {
        margin-top: 0;
        padding: 0;
        box-shadow: none;
        border: none;
    }
    
    .manual-content {
        box-shadow: none;
        border: none;
        padding: 20px;
    }
    
    .markdown-body {
        font-size: 12pt;
        line-height: 1.5;
    }
    
    .markdown-body a {
        color: #000;
        text-decoration: underline;
    }
    
    .markdown-body pre,
    .markdown-body table {
        page-break-inside: avoid;
    }
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--manual-primary);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    box-shadow: var(--manual-shadow-hover);
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    z-index: 100;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(9, 105, 218, 0.4);
}

.back-to-top:active {
    transform: translateY(-1px);
}

/* 移动端返回顶部按钮 */
@media (max-width: 768px) {
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .back-to-top {
        bottom: 16px;
        right: 16px;
        width: 40px;
        height: 40px;
        font-size: 12px;
    }
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    :root {
        --manual-bg: #0d1117;
        --manual-text: #c9d1d9;
        --manual-text-secondary: #8b949e;
        --manual-border: #30363d;
        --manual-bg-secondary: #161b22;
        --manual-bg-tertiary: #21262d;
        --manual-primary: #58a6ff;
        --manual-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
        --manual-shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.4);
    }
}