:root{--bg-primary: #fffef7;--bg-secondary: #fefcf0;--bg-tertiary: #fdf9e7;--text-primary: #212529;--text-secondary: #6c757d;--border-color: #f0ead6;--accent-color: hsla(200, 100%, 50%, 1);--accent-hover: hsla(200, 100%, 40%, 1);--shadow: 0 2px 4px rgba(0, 0, 0, .1);--shadow-lg: 0 4px 12px rgba(0, 0, 0, .15);--border-radius: 8px;--transition: all .2s ease}ul[data-type=taskList]{list-style:none;padding-left:.5em!important;margin:0!important}li[data-type=taskItem]{display:flex;align-items:flex-start;margin:.5rem 0;min-height:1.5rem;line-height:1.5;gap:.5rem}li[data-type=taskItem]>label{flex:0 0 auto;margin:0;-webkit-user-select:none;user-select:none;display:flex;align-items:center;height:1.5rem;padding-top:.1rem}li[data-type=taskItem]>label input[type=checkbox]{margin:0;width:16px;height:16px;cursor:pointer;vertical-align:top}li[data-type=taskItem]>div{flex:1 1 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.toolbar-btn.is-active{background:var(--accent-color);color:#fff;border-color:var(--accent-color)}[data-theme=dark] .toolbar-separator{background:var(--border-color)}[data-theme=dark] .toolbar-title,[data-theme=dark] .theme-btn{color:var(--text-primary)}[data-theme=dark] .theme-btn:hover{background:var(--bg-tertiary);border-color:var(--border-color)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background-color:#fffbf5;color:var(--text-primary);line-height:1.7;transition:var(--transition);font-size:16px}.container{max-width:880px;margin:0 auto;padding:20px;display:flex;flex-direction:column}.fixed-toolbar{position:fixed;top:0;left:0;right:0;background:#fff;border-bottom:1px solid var(--border-color);box-shadow:var(--shadow);z-index:1000;padding:12px 0}.toolbar-content{width:100%;padding:0 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code{background:var(--bg-secondary);padding:3px 8px;border-radius:4px;font-family:SF Mono,Monaco,Menlo,Ubuntu Mono,Consolas,monospace;font-size:.875em;color:#d63384;border:1px solid var(--border-color)}.editor pre{background:var(--bg-secondary);padding:1.5rem;border-radius:var(--border-radius);margin:1.5rem 0;overflow-x:auto;border:1px solid var(--border-color);box-shadow:var(--shadow)}.editor pre code{background:none;padding:0;border:none;color:var(--text-primary);font-size:.9em;line-height:1.6}.editor img{max-width:100%;height:auto;border-radius:var(--border-radius);margin:1.5rem 0;box-shadow:var(--shadow-lg);border:1px solid var(--border-color)}.editor hr{border:none;height:2px;background:linear-gradient(90deg,transparent,var(--border-color),transparent);margin:2rem 0;border-radius:1px}.editor strong{font-weight:600}.editor em{font-style:italic}.editor u{text-decoration:underline}.editor s{text-decoration:line-through}.editor sup{vertical-align:super;font-size:.8em}.editor sub{vertical-align:sub;font-size:.8em}.editor [data-text-align=left]{text-align:left}.editor [data-text-align=center]{text-align:center}.editor [data-text-align=right]{text-align:right}.toolbar-btn i{font-size:14px;color:var(--text-primary)}.heading-level{font-size:10px;font-weight:700;margin-left:2px;vertical-align:super}@media (max-width: 768px){.container{padding:15px}.toolbar{padding:8px 12px}.toolbar-btn{min-width:28px;height:28px;font-size:12px}.editor{padding:16px}.theme-toggle{position:static;margin-top:20px}}@media (max-width: 480px){.toolbar{gap:4px}.toolbar-group{gap:2px}.toolbar-separator{margin:0 2px}}*{transition:background-color .2s ease,color .2s ease,border-color .2s ease}