:root{--ink:#244b3a;--ink2:#18362a;--bg:#ece8de;--panel:#f6f1e5;--paper:#fffdf7;--line:#ded9ca;--muted:#77796f;--gold:#b59651;--text:#29312d;--soft:#e8e4d8;--danger:#a44c45;--shadow:0 18px 45px rgba(45,55,43,.08)}
*{box-sizing:border-box}html,body{margin:0;height:100%;overflow:hidden;font-family:"Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;color:var(--text);background:var(--bg)}button,input,textarea{font:inherit;color:inherit}button{border:0;background:none;cursor:pointer}.hidden{display:none!important}.app-shell{height:100vh;display:grid;grid-template-columns:72px 320px minmax(0,1fr);overflow:hidden;background:var(--bg)}body[data-theme=light]{--bg:#f2f3f2;--panel:#f8f8f7;--paper:#fff;--line:#dde0dc;--soft:#e9ece9;--text:#242925}body[data-theme=dark]{--ink:#8fb39b;--ink2:#14241d;--bg:#171c19;--panel:#1d2420;--paper:#222a25;--line:#354038;--muted:#9ca69f;--gold:#d2b56d;--text:#e4e8e5;--soft:#333c36;--danger:#e18b80;--shadow:0 18px 45px rgba(0,0,0,.3)}
.rail{background:var(--ink2);color:#f8f4e8;padding:22px 10px;display:flex;flex-direction:column;align-items:center;justify-content:space-between}.brand-mark{width:42px;height:42px;border:1px solid #ffffff4d;border-radius:13px;color:#fff;font-family:serif;font-size:22px}.rail nav{display:grid;gap:10px}.rail-btn,.avatar{width:50px;min-height:46px;border-radius:13px;color:#d7ddd8;font-size:19px;display:grid;place-items:center}.rail-btn small{display:none}.rail-btn:hover,.rail-btn.active{background:#ffffff1f;color:#fff}.avatar{width:44px;height:44px;min-height:44px;background:#d4bb7a;color:#18362a;font-size:14px;font-weight:700}
.notes-panel{border-right:1px solid var(--line);background:var(--panel);padding:30px 22px 16px;display:flex;min-height:0;flex-direction:column}.notes-head{display:flex;align-items:flex-end;justify-content:space-between}.eyebrow{margin:0 0 4px;color:var(--gold);font-size:11px;font-weight:800;letter-spacing:.16em}.notes-head h1{font-family:serif;margin:0;font-size:26px}.new-note{width:40px;height:40px;border-radius:12px;background:var(--ink);color:white;font-size:24px;box-shadow:0 8px 18px #244b3a2e}.search-box{height:42px;margin:24px 0 14px;padding:0 12px;border:1px solid var(--line);border-radius:12px;background:color-mix(in srgb,var(--paper) 70%,transparent);display:flex;align-items:center;gap:8px}.search-box input{border:0;outline:0;background:none;width:100%;font-size:14px}.filter-row{display:flex;gap:8px;margin-bottom:12px}.chip{font-size:13px;color:var(--muted);padding:7px 11px;border-radius:999px}.chip.active{background:color-mix(in srgb,var(--ink) 12%,var(--paper));color:var(--ink);font-weight:700}.tag-cloud{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}.tag-cloud button{padding:6px 9px;background:var(--soft);border-radius:8px;font-size:12px}.note-list{overflow:auto;display:grid;gap:10px;padding-right:2px}.note-card{padding:17px;border:1px solid transparent;border-radius:16px;cursor:pointer}.note-card:hover{border-color:var(--line)}.note-card.active{background:var(--paper);border-color:var(--line);box-shadow:0 10px 30px #3c36280f}.card-meta{display:flex;justify-content:space-between;color:var(--muted);font-size:12px}.note-card h2{margin:9px 0 6px;font-family:serif;font-size:18px}.note-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.tag-row{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin-top:12px}.tag-row span{padding:4px 8px;border-radius:6px;background:var(--soft);color:var(--muted);font-size:11px}.notes-foot{margin-top:auto;padding-top:14px;display:flex;justify-content:space-between;color:var(--muted);font-size:12px}.empty-state{text-align:center;margin:auto;color:var(--muted)}.empty-state>span{font-size:34px}.empty-state strong{display:block;color:var(--text);font-family:serif;font-size:18px;margin:10px}.empty-state p{font-size:13px}.empty-state button{color:var(--ink);font-weight:700}
.workspace{position:relative;min-width:0;display:flex;flex-direction:column}.workspace-head{height:70px;flex:none;border-bottom:1px solid var(--line);padding:0 24px;background:color-mix(in srgb,var(--panel) 92%,transparent);display:flex;align-items:center;justify-content:space-between}.mode-switch{padding:4px;background:var(--soft);border-radius:12px;display:flex}.mode-switch button{padding:8px 15px;border-radius:9px;font-size:13px}.mode-switch .active{background:var(--paper);color:var(--ink);box-shadow:0 2px 8px #0000000f;font-weight:700}.head-actions{display:flex;align-items:center;gap:10px}.head-actions button{width:34px;height:34px;font-size:18px}.head-actions .is-favorite{color:var(--gold)}.save-state{font-size:12px;color:var(--muted)}.mobile-menu{display:none}.popover{position:absolute;right:20px;top:60px;z-index:20;padding:7px;width:170px;border:1px solid var(--line);border-radius:12px;background:var(--paper);box-shadow:var(--shadow)}.popover button{display:block;width:100%;text-align:left;padding:9px 10px;border-radius:8px;font-size:13px}.popover button:hover{background:var(--soft)}.danger{color:var(--danger)!important}
.paper{width:min(900px,calc(100% - 56px));margin:28px auto 18px;padding:42px 56px;flex:1;min-height:0;overflow:auto;background:var(--paper);box-shadow:var(--shadow);border-radius:3px;position:relative}.paper:before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.17;background-image:radial-gradient(#8e8067 .45px,transparent .55px);background-size:4px 4px}.paper>*{position:relative}.paper-meta{display:flex;justify-content:space-between;color:var(--muted);font-size:12px}.title-input{display:block;width:100%;margin:18px 0 2px;border:0;outline:0;background:transparent;font-family:serif;font-size:38px;font-weight:600}.tag-editor{display:flex;align-items:center;gap:8px;margin-bottom:24px}.tag-row.large{margin:0}.tag-row.large span{cursor:pointer}.tag-editor>button{font-size:12px;color:var(--muted)}.editor-tabs{display:flex;align-items:center;border-bottom:1px solid var(--line);gap:24px}.editor-tabs button{padding:10px 2px;color:var(--muted);font-size:13px}.editor-tabs button.active{color:var(--ink);font-weight:700;border-bottom:2px solid var(--ink)}.attach-btn{margin-left:auto;color:var(--muted);font-size:12px;cursor:pointer}.attach-btn input{display:none}.markdown-space{height:calc(100% - 118px)}.editor-stage{height:calc(100% - 42px);min-height:360px;display:grid}.editor-stage textarea{width:100%;height:100%;resize:none;border:0;outline:0;padding:24px 0;background:transparent;font:15px/1.85 ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--text)}.editor-stage #markdownPreview{display:none}.editor-stage.split{grid-template-columns:1fr 1fr;gap:28px}.editor-stage.split #markdownPreview{display:block;border-left:1px solid var(--line);padding-left:28px}.editor-stage.preview textarea{display:none}.editor-stage.preview #markdownPreview{display:block}.prose{overflow:auto;padding:18px 2px;line-height:1.8;font-size:16px}.prose h1,.prose h2,.prose h3{font-family:serif;line-height:1.35}.prose blockquote{margin:16px 0;padding:2px 16px;border-left:3px solid var(--gold);color:var(--muted)}.prose code{padding:2px 5px;background:var(--soft);border-radius:4px}.prose pre{background:var(--ink2);color:#e7eee9;padding:16px;border-radius:10px;overflow:auto}.prose table{border-collapse:collapse;width:100%;margin:14px 0}.prose th,.prose td{border:1px solid var(--line);padding:8px}.prose a{color:var(--ink)}.prose img{max-width:100%;border-radius:10px}.task{list-style:none;margin-left:-20px}
.drawing-space{height:calc(100% - 112px);min-height:420px}.canvas-wrap{height:100%;overflow:hidden;position:relative;border:1px solid var(--line);border-radius:12px;background:var(--paper);touch-action:none}.canvas-wrap:before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:24px 24px;opacity:.26}.canvas-wrap canvas{position:relative;width:100%;height:100%;touch-action:none}.canvas-hint{position:absolute;top:14px;right:14px;color:var(--muted);font-size:11px}.draw-toolbar{position:sticky;z-index:5;bottom:12px;width:max-content;max-width:calc(100% - 20px);margin:-66px auto 0;padding:8px 10px;display:flex;align-items:center;gap:4px;background:#18362af0;color:#f7f4eb;border:1px solid #ffffff29;border-radius:16px;box-shadow:0 12px 35px #00000038;overflow-x:auto}.draw-toolbar button{color:inherit;min-width:34px;height:34px;border-radius:9px}.draw-toolbar .tool.active,.draw-toolbar button:hover{background:#ffffff26}.separator{width:1px;height:24px;background:#ffffff29;margin:0 3px}.color-picker{position:relative;width:30px;height:30px}.color-picker input{opacity:0;width:100%;height:100%}.color-picker span{position:absolute;width:18px;height:18px;left:6px;top:6px;border-radius:50%;background:#244b3a;border:2px solid white;pointer-events:none}.size-control{display:flex;align-items:center;gap:6px}.size-control input{width:72px;accent-color:#d4bb7a}.size-control output,#zoomLabel{font-size:11px;min-width:25px;text-align:center}.insert-drawing{width:auto!important;padding:0 10px;background:#d4bb7a!important;color:#18362a!important;font-weight:700;font-size:12px}.statusbar{height:30px;padding:0 24px;display:flex;justify-content:flex-end;gap:24px;color:var(--muted);font-size:11px}
.account-dialog{width:min(520px,calc(100% - 28px));border:1px solid var(--line);border-radius:20px;padding:0;background:var(--paper);color:var(--text);box-shadow:0 25px 80px #0004}.account-dialog::backdrop{background:#121a157a;backdrop-filter:blur(4px)}.dialog-body{padding:24px}.account-dialog header{display:flex;justify-content:space-between}.account-dialog h2{margin:0;font-family:serif}.account-dialog header button{font-size:24px}.account-dialog section{margin-top:22px}.account-dialog h3{font-size:13px;margin:0 0 10px}.profile-card{display:flex;align-items:center;gap:12px;padding:14px;background:var(--soft);border-radius:14px}.profile-avatar{width:42px;height:42px;display:grid;place-items:center;border-radius:50%;background:var(--ink);color:white}.profile-card p{margin:4px 0 0;color:var(--muted);font-size:12px}.profile-card button{margin-left:auto;padding:8px 12px;border-radius:9px;background:var(--ink);color:white;font-size:12px}.auth-panel{padding:14px;border:1px solid var(--line);border-radius:14px}.auth-tabs{display:grid;grid-template-columns:1fr 1fr;gap:5px;padding:4px;background:var(--soft);border-radius:10px}.auth-tabs button{padding:8px;border-radius:7px;color:var(--muted)}.auth-tabs button.active{background:var(--paper);color:var(--ink);box-shadow:0 2px 8px #0000000d}.auth-panel>label{display:grid;gap:5px;margin-top:12px;font-size:12px;color:var(--muted)}.auth-panel input{width:100%;border:1px solid var(--line);border-radius:9px;padding:10px 11px;background:var(--paper);outline:0}.auth-panel input:focus{border-color:var(--ink)}.auth-submit{width:100%;margin-top:14px;padding:11px;border-radius:9px;background:var(--ink);color:white;font-weight:700}.auth-panel>p{margin:10px 0 0;color:var(--muted);font-size:11px;line-height:1.6}.theme-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.theme-grid button{border:1px solid var(--line);border-radius:10px;padding:10px}.theme-grid button.active{border-color:var(--ink);color:var(--ink)}.theme-dot{display:inline-block;width:12px;height:12px;border-radius:50%;margin-right:6px;border:1px solid var(--line)}.theme-dot.light{background:white}.theme-dot.dark{background:#222}.theme-dot.paper{background:#f4eddf}.setting-row{width:100%;padding:11px 0;display:flex;justify-content:space-between;border-bottom:1px solid var(--line);font-size:13px}.setting-row em{font-style:normal;color:var(--muted)}.import-row{cursor:pointer}.import-row input{display:none}.account-note{font-size:12px;color:var(--muted);margin:20px 0 0}.toast{position:fixed;z-index:100;left:50%;bottom:28px;transform:translateX(-50%);background:var(--ink2);color:white;padding:10px 15px;border-radius:10px;box-shadow:var(--shadow);font-size:13px}
@media(max-width:1000px){.app-shell{grid-template-columns:64px 280px minmax(0,1fr)}.paper{padding:34px 38px}.title-input{font-size:32px}}
@media(max-width:720px){.app-shell{display:block}.rail{display:none}.notes-panel{position:fixed;z-index:30;inset:0 auto 0 0;width:min(88vw,330px);transform:translateX(-105%);transition:.25s;box-shadow:20px 0 50px #0003}.notes-panel.open{transform:translateX(0)}.mobile-backdrop{position:fixed;z-index:25;inset:0;background:#0005}.workspace{height:100vh}.workspace-head{height:62px;padding:0 10px}.mobile-menu{display:block}.save-state{display:none}.mode-switch button{padding:8px 9px;font-size:12px}.paper{width:100%;margin:0;padding:26px 20px;border-radius:0;box-shadow:none}.paper-meta span:last-child{display:none}.title-input{font-size:29px}.markdown-space{height:calc(100% - 105px)}.editor-stage.split{grid-template-columns:1fr}.editor-stage.split textarea{display:none}.editor-stage.split #markdownPreview{border:0;padding-left:0}.statusbar{padding:0 12px}.statusbar span:first-child{display:none}.drawing-space{height:calc(100% - 100px)}.draw-toolbar{bottom:8px}.draw-toolbar .separator,.size-control,#zoomLabel,#zoomOut,#zoomIn{display:none}}
.auth-tabs{display:flex;align-items:center;justify-content:space-between}.auth-tabs span{padding:8px;color:var(--muted);font-size:12px}.admin-dialog{width:min(880px,calc(100% - 28px));max-height:min(760px,calc(100vh - 28px))}.admin-form{display:grid;grid-template-columns:1.3fr 1fr 1.25fr 120px auto;gap:8px}.admin-form input,.admin-form select,.admin-user select{min-width:0;border:1px solid var(--line);border-radius:9px;padding:10px;background:var(--paper);outline:0}.admin-form button{padding:10px 16px;border-radius:9px;background:var(--ink);color:white;font-weight:700}.admin-list-head{display:flex;align-items:center;justify-content:space-between}.admin-list-head h3{margin:0}.admin-list-head button{color:var(--ink);font-size:13px}.admin-users{display:grid;gap:8px;max-height:410px;overflow:auto}.admin-user{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:13px 14px;border:1px solid var(--line);border-radius:12px}.admin-user strong{font-size:14px}.admin-user p,.admin-loading{margin:4px 0 0;color:var(--muted);font-size:12px}.admin-user-controls{display:flex;align-items:center;gap:6px}.admin-user-controls select,.admin-user-controls button{padding:7px 9px;font-size:12px}.admin-user-controls button{border-radius:8px;background:var(--soft)}.admin-user-controls button:disabled,.admin-user-controls select:disabled{opacity:.45;cursor:not-allowed}
@media(max-width:720px){.admin-form{grid-template-columns:1fr}.admin-user{align-items:flex-start;flex-direction:column}.admin-user-controls{width:100%;flex-wrap:wrap}.admin-user-controls select{flex:1}}