:root{--bg:#fffdf7;--sidebar-bg:#fffaf3;--text:#2b2b2b;--muted:#8a8177;--muted-light:#a8a196;--accent:#ffa159;--accent-hover:#ff9142;--border:#ece7dd;--border-strong:#d8d1c2;--ov-trigger-bg:#ffffff8c;--hover-bg:#f2efe7;--code-bg:#f2efe7;--table-head-bg:#f7f5f0;--header-bg:#fffdf7cc;--danger:#e6503f;--link:#4f8cff;--surface:#fff;--accent-text:#e07d2e;--active-hover-bg:#e3ddd0;--code-text:#5c5348;--quote-text:#8a7860;--quote-border:#ffb37a;--danger-hover:#c9432f;--overlay-bg:#2b201459;--overlay-strong-bg:#2b201473}:root[data-apptheme=dark]{--bg:#1c1a17;--sidebar-bg:#161412;--surface:#211d18;--text:#ece7dd;--muted:#a89f92;--muted-light:#786f62;--accent:#ffa159;--accent-hover:#ffb478;--accent-text:#ffb478;--border:#332e27;--border-strong:#524a3d;--ov-trigger-bg:#211d188c;--hover-bg:#2a251e;--active-hover-bg:#3a332a;--code-bg:#2a251e;--code-text:#d8cfc2;--quote-text:#c9bdae;--quote-border:#ffb478;--table-head-bg:#211d18;--header-bg:#1c1a17cc;--danger:#ff6b58;--danger-hover:#ff8a76;--link:#7ab2ff;--overlay-bg:#00000080;--overlay-strong-bg:#0009}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{background:var(--bg);height:100%;color:var(--text);margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Yu Gothic,sans-serif}.mdeditor-app{height:100vh;display:flex;overflow:hidden}.mdeditor-mobile-backdrop{background:var(--overlay-bg);z-index:65;position:fixed;inset:0}.mdeditor-main-col{flex-direction:column;flex:1;min-width:0;display:flex}.mdeditor-content{flex:1;overflow:hidden auto}.mdeditor-content-empty{justify-content:center;align-items:center;height:100%;display:flex}.mdeditor-content-empty p{color:var(--muted-light);text-align:center;white-space:pre-line;font-size:14px;line-height:1.8}.mdeditor-slash-hint{color:#c9c0b1;max-width:720px;margin:0 auto;padding:0 24px;font-size:12.5px}.mdeditor-login{justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.mdeditor-login-card{text-align:center;width:100%;max-width:380px}.mdeditor-login-logo{background:var(--accent);color:#fff;border-radius:14px;justify-content:center;align-items:center;width:48px;height:48px;margin:0 auto 20px;font-size:22px;font-weight:800;display:flex;box-shadow:0 6px 16px 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var(--border);margin:2px 0}img.md-img{vertical-align:middle;border-radius:6px;max-width:100%}img.md-img.md-img-loading{background:linear-gradient(90deg, var(--hover-bg) 25%, var(--code-bg) 37%, var(--hover-bg) 63%);border:1px solid var(--border);background-size:400% 100%;min-width:120px;min-height:80px;animation:1.4s infinite md-img-skeleton;display:inline-block}@keyframes md-img-skeleton{0%{background-position:100%}to{background-position:0}}img.md-img.md-img-broken{box-sizing:border-box;background:var(--hover-bg);border:1px dashed var(--border);min-width:120px;min-height:32px;color:var(--muted);vertical-align:middle;border-radius:6px;align-items:center;gap:6px;padding:6px 10px;font-size:.85em;display:inline-flex}img.md-img.md-img-broken:before{content:"⚠︎";color:var(--muted);margin-right:2px}#mdeditor-toast-container{z-index:1000;pointer-events:none;flex-direction:column;align-items:flex-end;gap:8px;max-width:min(360px,100vw - 32px);display:flex;position:fixed;bottom:16px;right:16px}.mdeditor-toast{pointer-events:auto;cursor:pointer;color:#fff;opacity:0;word-break:break-word;background:#4a4038;border-radius:8px;padding:10px 14px;font-size:13.5px;line-height:1.5;transition:opacity .2s,transform .2s;transform:translateY(8px);box-shadow:0 4px 14px #0000002e}.mdeditor-toast-visible{opacity:1;transform:translateY(0)}.mdeditor-toast-leaving{opacity:0;transform:translateY(8px)}.mdeditor-toast-success{background:#3d8b5f}.mdeditor-toast-error{background:#e6503f}.mdeditor-toast-info{background:#4f8cff}#mdeditor-banner-container{z-index:999;flex-direction:column;display:flex;position:fixed;top:0;left:0;right:0}.mdeditor-banner{color:#fff;text-align:center;background:#5c5348;justify-content:center;align-items:center;gap:10px;padding:8px 16px;font-size:13px;display:flex}.mdeditor-banner-message{flex:auto}.mdeditor-banner-dismiss{color:inherit;cursor:pointer;background:0 0;border:none;border-radius:4px;flex:none;padding:2px 6px;font-size:13px;line-height:1}.mdeditor-banner-dismiss:hover{background:#ffffff26}@media (prefers-reduced-motion:reduce){.mdeditor-toast{transition:none}}.mdeditor-conflict-overlay{z-index:2000;background:var(--overlay-strong-bg);justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.mdeditor-conflict-dialog{background:var(--surface);width:100%;max-width:420px;color:var(--text);box-sizing:border-box;border-radius:10px;padding:20px;box-shadow:0 12px 32px #00000040}.mdeditor-conflict-title{margin:0 0 8px;font-size:15px;font-weight:700;line-height:1.5}.mdeditor-conflict-desc{color:var(--muted);margin:0 0 18px;font-size:13px;line-height:1.6}.mdeditor-conflict-actions{flex-direction:column;gap:8px;display:flex}.mdeditor-conflict-btn{box-sizing:border-box;cursor:pointer;border:1px solid #0000;border-radius:8px;width:100%;padding:10px 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10px;display:flex}.mdeditor-sidebar-folder-btn:hover{background:var(--hover-bg)}.mdeditor-sidebar-folder-icon{font-size:16px}.mdeditor-sidebar-folder-name{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;flex:1;font-size:13.5px;font-weight:700;overflow:hidden}.mdeditor-sidebar-folder-chevron{color:var(--muted-light);font-size:11px}.mdeditor-sidebar-file-btn{text-align:left;cursor:pointer;background:0 0;border:none;border-radius:14px;align-items:center;gap:12px;width:100%;padding:8px 10px;display:flex}.mdeditor-sidebar-file-btn:hover{background:var(--hover-bg)}.mdeditor-sidebar-file-btn.active{background:var(--border)}.mdeditor-sidebar-file-btn.active:hover{background:var(--active-hover-bg)}.mdeditor-sidebar-file-icon-box{background:var(--hover-bg);border-radius:9px;flex:none;justify-content:center;align-items:center;width:32px;height:32px;font-size:15px;display:flex}.mdeditor-sidebar-file-btn.active 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var(--border);background:var(--surface);width:34px;height:34px;color:var(--muted);cursor:pointer;border-radius:50%;flex:none;justify-content:center;align-items:center;padding:0;font-size:15px;display:flex}.mdeditor-sidebar-theme-btn:hover{background:var(--hover-bg)}.mdeditor-newfile-overlay{z-index:200;background:var(--overlay-bg);justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.mdeditor-newfile-dialog{background:var(--surface);box-sizing:border-box;border-radius:18px;width:100%;max-width:360px;padding:28px;box-shadow:0 20px 50px #0003}.mdeditor-newfile-title{color:var(--text);margin:0 0 6px;font-size:17px;font-weight:800}.mdeditor-newfile-desc{color:var(--muted-light);margin:0 0 8px;font-size:13px}.mdeditor-newfile-destination{color:var(--accent);margin:0 0 16px;font-size:12px;font-weight:600}.mdeditor-newfile-input{box-sizing:border-box;border:1px solid var(--border);width:100%;color:var(--text);border-radius:10px;outline:none;margin-bottom:8px;padding:10px 14px;font-size:14px}.mdeditor-newfile-input:focus{border-color:var(--accent)}.mdeditor-newfile-input:disabled{opacity:.6}.mdeditor-newfile-error{color:var(--danger);margin:0 0 8px;font-size:12.5px}.mdeditor-newfile-actions{justify-content:flex-end;gap:8px;margin-top:12px;display:flex}.mdeditor-newfile-btn-cancel{border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;border-radius:10px;padding:9px 16px;font-size:13.5px}.mdeditor-newfile-btn-cancel:hover{background:var(--hover-bg)}.mdeditor-newfile-btn-primary{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:10px;padding:9px 18px;font-size:13.5px;font-weight:700}.mdeditor-newfile-btn-primary:hover{background:var(--accent-hover)}.mdeditor-newfile-btn-primary:disabled{opacity:.6;cursor:default}.mdeditor-imagepicker-overlay{z-index:200;background:var(--overlay-bg);justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.mdeditor-imagepicker-dialog{background:var(--surface);box-sizing:border-box;border-radius:18px;width:100%;max-width:360px;padding:28px;box-shadow:0 20px 50px #0003}.mdeditor-imagepicker-title{color:var(--text);margin:0 0 6px;font-size:16px;font-weight:800}.mdeditor-imagepicker-desc{color:var(--muted-light);margin:0 0 18px;font-size:13.5px}.mdeditor-imagepicker-drop{border:1.5px dashed var(--border);text-align:center;cursor:pointer;color:var(--muted-light);border-radius:12px;margin-bottom:18px;padding:28px 16px;font-size:13.5px}.mdeditor-imagepicker-drop:hover{border-color:var(--accent);color:var(--accent)}.mdeditor-imagepicker-actions{justify-content:flex-end;gap:8px;display:flex}.mdeditor-imagepicker-btn-cancel{border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;border-radius:10px;padding:8px 14px;font-size:13.5px}.mdeditor-imagepicker-btn-cancel:hover{background:var(--hover-bg)}.mdeditor-header-left{align-items:center;gap:12px;min-width:0;display:flex}.mdeditor-header-sidebar-toggle{cursor:pointer;background:0 0;border:none;border-radius:8px;flex-direction:column;flex:none;gap:3px;padding:6px;display:flex}.mdeditor-header-sidebar-toggle:hover{background:var(--hover-bg)}.mdeditor-header-sidebar-toggle span{background:var(--muted);border-radius:1px;width:16px;height:2px}.mdeditor-header-info{align-items:center;gap:8px;min-width:0;display:flex}.mdeditor-header-filename{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.mdeditor-header-folder-label{color:var(--muted-light);text-overflow:ellipsis;white-space:nowrap;flex:0 auto;font-size:12px;font-weight:400;overflow:hidden}.mdeditor-header-dirty-dot{background:var(--accent);border-radius:50%;flex:none;width:8px;height:8px}.mdeditor-header-actions{align-items:center;gap:10px;display:flex}.mdeditor-header-offline-badge{background:var(--danger);color:#fff;white-space:nowrap;border-radius:999px;flex:none;padding:3px 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8px}.mdeditor-tl-table th{background:var(--table-head-bg)}.mdeditor-tl-pre{background:var(--code-bg);border:1px solid var(--border);border-radius:10px;margin:8px 0;padding:10px;font-size:13px;overflow-x:auto}.mdeditor-tl-pre code{background:0 0;padding:0;font-family:ui-monospace,monospace}.mdeditor-tl-empty{text-align:center;color:var(--muted);padding:60px 16px;font-size:13px}.toc-trigger{right:20px;bottom:calc(24px + env(safe-area-inset-bottom,0px));background:var(--ov-trigger-bg);width:46px;height:46px;color:var(--muted-light);cursor:pointer;z-index:55;border:1px solid #0000;border-radius:50%;justify-content:center;align-items:center;font-size:20px;display:flex;position:fixed;box-shadow:0 4px 14px #00000029}.toc-trigger:hover{background:var(--hover-bg);border-color:var(--border-strong);color:var(--text)}.toc-overlay{background:var(--overlay-bg);z-index:78;opacity:0;pointer-events:none;transition:opacity 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0;border:none;border-radius:50%;justify-content:center;align-items:center;font-size:14px;display:flex}.toc-panel-close:hover{background:var(--hover-bg)}.toc-panel-body{padding:8px 10px 20px;overflow-y:auto}.toc-item{text-align:left;width:100%;color:var(--text);cursor:pointer;background:0 0;border:none;border-radius:8px;padding:9px 14px;font-size:14px;display:block}.toc-item:hover{background:var(--hover-bg)}.toc-item.current{background:var(--active-hover-bg)}.toc-item-h1{padding-left:14px;font-weight:700}.toc-item-h2{padding-left:30px;font-weight:500}.toc-item-h3{color:var(--muted);padding-left:46px;font-weight:400}.toc-empty{text-align:center;color:var(--muted);padding:44px 20px;font-size:13px}@keyframes toc-heading-flash{0%{background-color:color-mix(in srgb, var(--accent) 35%, transparent)}to{background-color:#0000}}.toc-flash{animation:1.1s ease-out toc-heading-flash}