:root{color-scheme:light;--bg: #eef8f0;--panel: #ffffff;--panel-soft: #f7fbf6;--text: #2d211c;--muted: #876f62;--border: #f0d8c8;--accent: #ff7a2f;--accent-dark: #ea5d16;--leaf: #45b75a;--leaf-dark: #238641;--danger: #d95745;--shadow: 0 18px 45px rgba(127, 76, 40, .14)}*{box-sizing:border-box}html,body,#root{width:100%;height:100%}body{margin:0;overflow:hidden;font-family:Microsoft YaHei,PingFang SC,Arial,sans-serif;color:var(--text);background:linear-gradient(135deg,#e8f7ebfa,#fff2e4db 48%,#f6fbf6fa),var(--bg)}button,input{font:inherit}.app-shell{display:grid;grid-template-columns:320px minmax(0,1fr);width:100%;height:100%;min-height:0;padding:20px;gap:20px}.sidebar,.editor{min-height:0;overflow:hidden;border:1px solid var(--border);border-radius:18px;background:var(--panel);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.sidebar{display:flex;flex-direction:column}.sidebar-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:20px 20px 18px;border-bottom:1px solid var(--border)}.brand-lockup{display:flex;align-items:center;min-width:0;gap:12px}.logo-mark{position:relative;width:78px;height:68px;flex:0 0 auto;overflow:hidden;border:1px solid rgba(255,122,47,.2);border-radius:20px;background:#fff8ef;filter:drop-shadow(0 8px 10px rgba(237,111,38,.18))}.logo-mark img{position:absolute;left:50%;top:50%;width:78px;max-width:none;transform:translate(-50%,-50%);-webkit-user-select:none;user-select:none;pointer-events:none}.brand{min-width:0}.brand h1{margin:0;font-size:24px;line-height:1.2}.brand p{margin:5px 0 0;color:var(--muted);font-size:13px;line-height:1.4}.icon-button{width:40px;height:40px;flex:0 0 auto;border:0;border-radius:13px;color:#fff;background:linear-gradient(180deg,#ff914d,var(--accent));cursor:pointer;font-size:24px;line-height:1;box-shadow:0 10px 18px #ff7a2f47;transition:transform .16s ease,box-shadow .16s ease}.icon-button:hover{transform:translateY(-1px);box-shadow:0 12px 22px #ff7a2f5c}.search-wrap{position:relative;display:block;padding:12px 12px 0}.search-wrap svg{position:absolute;left:26px;top:25px;width:17px;height:17px;color:var(--muted);stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;fill:none;pointer-events:none}.search-input{width:100%;height:42px;border:1px solid var(--border);border-radius:14px;outline:none;padding:0 14px 0 40px;color:var(--text);background:var(--panel-soft);font-size:14px;line-height:42px}.search-input:focus{border-color:#ff7a2f85;background:#fff;box-shadow:0 0 0 3px #ff7a2f24}.tag-filter{display:flex;gap:8px;overflow-x:auto;overscroll-behavior-x:contain;padding:10px 12px 0}.tag-button{flex:0 0 auto;border:1px solid var(--border);border-radius:999px;padding:6px 11px;color:var(--muted);background:#fffdfa;cursor:pointer;font-size:12px;font-weight:700;line-height:1.3}.tag-button:hover{border-color:#45b75a61;color:var(--leaf-dark);background:#f4fbf3}.tag-button.active{border-color:#45b75a75;color:#fff;background:var(--leaf)}.note-list{flex:1;min-height:0;overflow:auto;overscroll-behavior:contain;padding:12px}.note-item{width:100%;display:block;padding:14px;margin:0 0 8px;border:1px solid transparent;border-radius:14px;text-align:left;color:var(--text);background:transparent;cursor:pointer}.note-item:hover{background:#f7fbf6}.note-item.active{border-color:#ff7a2f61;background:#fff0dc;box-shadow:inset 4px 0 #45b75ab8}.note-title{display:block;overflow:hidden;font-size:15px;font-weight:700;line-height:1.35;text-overflow:ellipsis;white-space:nowrap}.note-preview{display:-webkit-box;margin-top:6px;overflow:hidden;color:var(--muted);font-size:13px;line-height:1.45;-webkit-line-clamp:2;-webkit-box-orient:vertical}.empty-list{padding:24px 14px;color:var(--muted);font-size:14px;line-height:1.6}.editor{display:flex;flex-direction:column}.editor-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px 20px;border-bottom:1px solid var(--border);background:linear-gradient(180deg,#fff,#fbfefb)}.status{overflow:hidden;color:var(--leaf-dark);font-size:13px;font-weight:700;line-height:1.4;text-overflow:ellipsis;white-space:nowrap}.status:before{content:"";display:inline-block;width:8px;height:8px;margin-right:7px;border-radius:999px;background:var(--leaf);box-shadow:0 0 0 4px #45b75a1f;vertical-align:1px}.toolbar-actions,.mode-switch{display:flex;align-items:center;gap:8px}.toolbar-actions{flex-wrap:wrap;justify-content:flex-end}.mode-switch{padding:4px;border:1px solid var(--border);border-radius:14px;background:#fff8ef}.mode-switch button{border:0;border-radius:10px;padding:8px 12px;color:var(--muted);background:transparent;cursor:pointer;font-size:13px;font-weight:700}.mode-switch button.active{color:#fff;background:var(--accent);box-shadow:0 8px 16px #ff7a2f33}.tutorial-button{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid var(--border);border-radius:13px;padding:0;color:var(--leaf-dark);background:#f7fbf6;cursor:pointer}.tutorial-button:hover{border-color:#45b75a6b;background:#eff9ef}.tutorial-button svg,.tutorial-close svg{width:20px;height:20px;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;fill:none}.syntax-toolbar,.io-actions{display:inline-flex;align-items:center;gap:4px;border:1px solid var(--border);border-radius:13px;padding:4px;background:#fff8ef}.syntax-toolbar button,.io-actions button{display:inline-flex;align-items:center;justify-content:center;width:31px;height:31px;border:0;border-radius:9px;color:var(--muted);background:transparent;cursor:pointer;font-size:14px;font-weight:800;line-height:1}.syntax-toolbar button:hover,.io-actions button:hover{color:var(--accent-dark);background:#fff}.syntax-toolbar svg,.io-actions svg{width:17px;height:17px;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;fill:none}.danger-button{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid #f0c7c7;border-radius:13px;padding:0;color:var(--danger);background:#fff7f7;cursor:pointer}.danger-button:hover{border-color:#e79c9c;background:#ffeded}.danger-button:disabled{cursor:not-allowed;opacity:.48}.danger-button svg{width:20px;height:20px;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;fill:none}.editor-body{display:flex;flex:1;min-height:0;flex-direction:column;padding:24px;gap:16px}.title-input{width:100%;border:0;outline:none;color:var(--text);background:transparent;font-size:32px;font-weight:800;line-height:1.22}.note-meta-row{display:flex;align-items:center;justify-content:space-between;gap:14px}.tag-input-wrap{display:flex;align-items:center;min-width:0;flex:1;gap:8px;color:var(--muted);font-size:13px;font-weight:700}.tag-input{width:100%;min-width:0;height:34px;border:1px solid var(--border);border-radius:999px;outline:none;padding:0 13px;color:var(--text);background:#fffdfa;font-size:13px}.tag-input:focus{border-color:#45b75a75;box-shadow:0 0 0 3px #45b75a1f}.editor-meta{display:flex;flex:0 0 auto;flex-wrap:wrap;justify-content:flex-end;gap:8px;color:var(--muted);font-size:12px;font-weight:700}.editor-meta span{border:1px solid var(--border);border-radius:999px;padding:6px 9px;background:#fff8ef}.editor-workspace{flex:1;min-height:0;overflow:hidden;border:1px solid var(--border);border-radius:18px;background:#fffdfa}.editor-workspace.mode-split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.markdown-editor,.markdown-preview{height:100%;min-height:0}.markdown-editor .cm-editor{height:100%;background:#fffdfa;color:var(--text);font-size:15px}.markdown-editor .cm-scroller{overscroll-behavior:contain;font-family:Cascadia Code,Consolas,monospace;line-height:1.7}.markdown-editor .cm-content{padding:18px 10px}.markdown-preview{overflow:auto;overscroll-behavior:contain;padding:18px 24px 48px;color:var(--text);font-size:16px;line-height:1.8}.mode-split .markdown-preview{border-left:1px solid var(--border)}.markdown-preview h1,.markdown-preview h2,.markdown-preview h3{margin:.8em 0 .35em;line-height:1.25}.markdown-preview p{margin:.7em 0}.markdown-preview table{width:100%;border-collapse:collapse;margin:1em 0}.markdown-preview th,.markdown-preview td{border:1px solid var(--border);padding:8px 10px}.markdown-preview pre{overflow:auto;border-radius:12px;padding:14px;background:#f6f8fa}.markdown-preview code{font-family:Cascadia Code,Consolas,monospace}.markdown-preview a{color:var(--accent-dark)}.markdown-preview .contains-task-list{padding-left:0;list-style:none}.tutorial-overlay{position:fixed;inset:0;z-index:50;display:flex;align-items:center;justify-content:center;padding:28px;background:#2d211c3d;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.tutorial-dialog{width:min(920px,100%);max-height:min(760px,calc(100vh - 56px));overflow:hidden;border:1px solid var(--border);border-radius:22px;background:#fffdf9;box-shadow:0 28px 72px #7f4c283d}.tutorial-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:22px 24px 18px;border-bottom:1px solid var(--border);background:linear-gradient(180deg,#fff,#fff8ef)}.tutorial-header h2{margin:0;font-size:24px;line-height:1.25}.tutorial-header p{margin:6px 0 0;color:var(--muted);font-size:14px}.tutorial-close{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;flex:0 0 auto;border:1px solid var(--border);border-radius:13px;color:var(--muted);background:#fff;cursor:pointer}.tutorial-close:hover{color:var(--danger);border-color:#f0c7c7;background:#fff7f7}.tutorial-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));max-height:calc(min(760px,100vh - 56px) - 94px);overflow:auto;overscroll-behavior:contain;padding:18px;gap:12px}.tutorial-card{min-width:0;border:1px solid var(--border);border-radius:16px;padding:14px;background:#fffdfa}.tutorial-card h3{margin:0 0 10px;font-size:16px;line-height:1.3}.tutorial-card pre{margin:0;overflow:auto;border-radius:12px;padding:12px;color:#3b2a20;background:#fff2df;font-size:13px;line-height:1.5}.tutorial-card code{font-family:Cascadia Code,Consolas,monospace}.tutorial-card p{margin:10px 0 0;color:var(--muted);font-size:13px;line-height:1.5}@media(max-width:900px){.app-shell{grid-template-columns:1fr;grid-template-rows:280px minmax(0,1fr);padding:10px;gap:10px}.sidebar-header,.editor-toolbar{padding:14px}.editor-body{padding:16px}.title-input{font-size:24px}.logo-mark{width:58px;height:52px}.logo-mark img{width:58px}.brand h1{font-size:21px}.editor-workspace.mode-split{grid-template-columns:1fr;grid-template-rows:minmax(0,1fr) minmax(0,1fr)}.mode-split .markdown-preview{border-left:0;border-top:1px solid var(--border)}.toolbar-actions{gap:6px}.note-meta-row{align-items:stretch;flex-direction:column}.editor-meta{justify-content:flex-start}.mode-switch button{padding:8px 9px}.tutorial-grid{grid-template-columns:1fr}}pre code.hljs{display:block;overflow-x:auto;padding:1em}code.hljs{padding:3px 5px}.hljs{color:#24292e;background:#fff}.hljs-doctag,.hljs-keyword,.hljs-meta .hljs-keyword,.hljs-template-tag,.hljs-template-variable,.hljs-type,.hljs-variable.language_{color:#d73a49}.hljs-title,.hljs-title.class_,.hljs-title.class_.inherited__,.hljs-title.function_{color:#6f42c1}.hljs-attr,.hljs-attribute,.hljs-literal,.hljs-meta,.hljs-number,.hljs-operator,.hljs-variable,.hljs-selector-attr,.hljs-selector-class,.hljs-selector-id{color:#005cc5}.hljs-regexp,.hljs-string,.hljs-meta .hljs-string{color:#032f62}.hljs-built_in,.hljs-symbol{color:#e36209}.hljs-comment,.hljs-code,.hljs-formula{color:#6a737d}.hljs-name,.hljs-quote,.hljs-selector-tag,.hljs-selector-pseudo{color:#22863a}.hljs-subst{color:#24292e}.hljs-section{color:#005cc5;font-weight:700}.hljs-bullet{color:#735c0f}.hljs-emphasis{color:#24292e;font-style:italic}.hljs-strong{color:#24292e;font-weight:700}.hljs-addition{color:#22863a;background-color:#f0fff4}.hljs-deletion{color:#b31d28;background-color:#ffeef0}