:root{--bg:#070b14;--bg-2:#0d1422;--line:#1f2a40;--fg:#e6ecf7;--muted:#8a97b2;--accent:#7dffb0;--gpos:#8a6cff;--gneg:#ff7aa8;--sans:"Noto Sans TC", system-ui, sans-serif;--serif:"Source Serif 4", Georgia, serif;--mono:"IBM Plex Mono", ui-monospace, monospace;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}[hidden]{display:none!important}html,body{height:100%;margin:0}body{background:var(--bg);color:var(--fg);font:15px/1.6 var(--sans);overflow:hidden}button{font:inherit;color:inherit;cursor:pointer}button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}h1,h2,h3{text-wrap:balance;margin:0}.latin{font-family:var(--serif);font-style:italic}.eyebrow{font:500 11px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0}.muted{color:var(--muted)}.btn{white-space:nowrap;background:var(--bg-2);border:1px solid var(--line);border-radius:8px;padding:8px 14px}.btn:hover{border-color:var(--muted)}.label.pin{border-color:#ff5a5a}.stage.annotating .canvas{cursor:crosshair}#annotate.on{color:#1a0606;background:#ff5a5a;border-color:#ff5a5a;font-weight:700}.hs-dialog{border:1px solid var(--line);background:var(--bg-2);color:inherit;border-radius:10px;width:min(420px,100% - 32px);padding:20px}.hs-dialog::backdrop{background:#00000080}.hs-dialog h2{margin:0 0 12px;font-size:18px}.hs-dialog label{color:var(--muted);flex-direction:column;gap:4px;margin-bottom:10px;font-size:13px;display:flex}.hs-dialog select,.hs-dialog input,.hs-dialog textarea{font:inherit;color:inherit;background:var(--bg,#0b1220);border:1px solid var(--line);resize:vertical;border-radius:6px;padding:7px 9px;font-size:14px}.hs-actions{justify-content:flex-end;gap:8px;margin-top:6px;display:flex}.callout .hs-del{font:inherit;color:#b3261e;cursor:pointer;background:0 0;border:1px solid #e3b3ae;border-radius:4px;margin-top:8px;padding:4px 10px;font-size:13px}.hs-dialog .drop{border:2px dashed var(--line);min-height:90px;color:inherit;text-align:center;cursor:pointer;border-radius:8px;place-items:center;padding:12px;display:grid;position:relative}.hs-dialog .drop.over{background:#7dffb014;border-color:#7dffb0}.hs-dialog .drop input{opacity:0;cursor:pointer;position:absolute;inset:0}.hs-dialog .check{flex-direction:row;align-items:flex-start;gap:8px}.imp-help{color:var(--muted);margin:-4px 0 10px;font-size:12px}.sp.add{color:#7dffb0;border:1px dashed var(--line);justify-content:center}.danger{color:#ff7a7a}#segment.on{color:#04121f;background:#4dabf7;border-color:#4dabf7;font-weight:700}.seg-panel .seg-next{border:1px solid #4dabf7;border-radius:8px;margin:14px 0;padding:12px 14px;font-size:18px}.seg-panel .seg-next b{color:#4dabf7;font-size:22px}.seg-panel .seg-btns{flex-wrap:wrap;gap:8px;margin:10px 0;display:flex}.seg-panel select{font:inherit;color:inherit;background:var(--bg-2);border:1px solid var(--line);border-radius:6px;padding:5px 8px}.seg-panel ol{color:var(--muted);columns:2;padding-left:20px;font-size:13px}.seg-panel ol .done{color:inherit}.seg-panel ol .skip{text-decoration:line-through}.seg-panel textarea{width:100%;font:inherit;color:inherit;background:var(--bg,#0b1220);border:1px solid var(--line);resize:vertical;border-radius:6px;padding:7px 9px;font-size:13px}.seg-panel h3{margin-top:18px}.seg-tools{gap:8px;margin:12px 0 6px;display:flex}.seg-tip{color:var(--muted);font-size:12px;line-height:1.6}.seg-legend{flex-wrap:wrap;gap:6px;margin:8px 0;display:flex}.seg-sw{font:inherit;color:inherit;background:var(--bg-2);border:1px solid var(--line);cursor:pointer;border-radius:999px;align-items:center;gap:6px;padding:3px 9px 3px 4px;font-size:12px;display:inline-flex}.seg-sw i{border-radius:50%;width:14px;height:14px;display:inline-block}.seg-sw.on{border-color:#fff;box-shadow:0 0 0 1px #fff}.seg-file{cursor:pointer;display:inline-block}.seg-score{font-size:16px}.seg-score b{color:#7dffb0;font-size:22px}.seg-warn{color:#ffb4a8;font-size:13px}.seg-table{border-collapse:collapse;width:100%;font-size:13px}.seg-table th,.seg-table td{text-align:left;border-bottom:1px solid var(--line);padding:4px 6px}.seg-table tr.bad td{color:#ffb4a8}.seg-panel .check{align-items:center;gap:8px;margin:6px 0;font-size:13px;display:flex}.btn.primary{background:var(--accent);color:#04140b;border-color:var(--accent);font-weight:700}.btn.ghost{background:0 0}.btn:disabled{opacity:.5;cursor:wait}.link{color:var(--muted);background:0 0;border:0;padding:0;text-decoration:underline}.app{grid-template:"top top top""list stage panel"1fr/230px 1fr 330px;height:100%;display:grid}.app.blur{filter:blur(6px);pointer-events:none}.top{padding:calc(10px + env(safe-area-inset-top,0px)) 16px 10px;border-bottom:1px solid var(--line);grid-area:top;align-items:center;gap:20px;display:flex}.brand{letter-spacing:.04em;white-space:nowrap;align-items:center;gap:12px;font-weight:700;display:flex}.modes{border:1px solid var(--line,#26324a);border-radius:8px;display:flex;overflow:hidden}.modes button{letter-spacing:0;color:inherit;opacity:.6;cursor:pointer;background:0 0;border:0;padding:5px 12px;font:500 13px inherit}.modes button.on{opacity:1;color:#7dffb0;background:#7dffb024}.gram.region{background:#e6b8a2}.gram.region.animal{background:#a8d8a0}#species .empty{color:var(--muted);padding:12px;font-size:13px;line-height:1.6}.cats{flex:1;gap:6px;min-width:0;display:flex;overflow-x:auto}.chip{border:1px solid var(--line);white-space:nowrap;color:var(--muted);background:0 0;border-radius:99px;padding:4px 12px;font-size:13px}.chip.on{color:var(--fg);border-color:var(--accent)}.user{white-space:nowrap;align-items:center;gap:8px;font-size:13px;display:flex}.user img{border-radius:50%;width:26px;height:26px}.user .dev{color:#ffcf6b;font-family:var(--mono);font-size:12px}.list{border-right:1px solid var(--line);grid-area:list;overflow-y:auto}.list ul{gap:2px;margin:0;padding:8px;list-style:none;display:grid}.sp{text-align:left;background:0 0;border:0;border-radius:8px;grid-template-columns:auto 1fr;align-items:center;gap:2px 10px;width:100%;padding:8px 10px;display:grid}.sp:hover{background:var(--bg-2)}.sp.on{background:var(--bg-2);box-shadow:inset 2px 0 0 var(--accent)}.sp-text{min-width:0;display:grid}.sp-name{font-weight:500}.sp .latin{color:var(--muted);white-space:nowrap;text-overflow:ellipsis;font-size:12.5px;overflow:hidden}.sp-shape{font:11px var(--mono);color:var(--muted);grid-column:2}.gram{font:500 11px var(--mono);color:#0a0a12;border-radius:5px;grid-row:span 2;padding:3px 6px}.gpos{background:var(--gpos)}.gneg{background:var(--gneg)}.stage{background:radial-gradient(ellipse at 50% 45%, #13203a 0%, var(--bg) 70%);grid-area:stage;position:relative;overflow:hidden}.canvas,.labels{position:absolute;inset:0}.canvas canvas{touch-action:none;display:block}.labels{pointer-events:none}.label{pointer-events:auto;white-space:nowrap;border:1px solid var(--line);background:#070b14c7;border-radius:6px;margin:-12px 0 0 10px;padding:2px 8px;font-size:12.5px;position:absolute;top:0;left:0}.label:before{content:"";background:var(--muted);width:8px;height:1px;position:absolute;top:50%;left:-10px}.label.on{border-color:var(--accent);color:var(--accent)}.lecture{pointer-events:none;z-index:3;width:100%;height:100%;position:absolute;inset:0;overflow:visible}.stick-body{stroke:url(#wood);stroke-width:7px;stroke-linecap:round}.stick-grip{stroke:#2b1a0c;stroke-width:11px;stroke-linecap:round}.stick-tip{fill:#ff4d4d;filter:drop-shadow(0 0 6px #ff4d4d)}.leader{stroke:#fff6c8;stroke-width:1.5px;stroke-dasharray:5 4}.leader-dot{fill:#fff6c8}.callout{--grid:#4678c829;z-index:4;color:#1d2433;background-color:#fbfaf4;background-image:linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);background-position:-1px -1px;background-size:18px 18px;border-top:6px solid #e2574c;border-radius:4px;gap:6px;width:min(340px,100% - 32px);padding:16px 18px 14px;font-size:15.5px;line-height:1.65;display:grid;position:absolute;top:0;left:0;box-shadow:0 10px 30px #00000073}.callout .eyebrow{color:#5a6680}.callout h2{color:#10172a;font-size:22px}.callout h3{color:#e2574c;letter-spacing:.06em;margin:4px 0 0;font-size:12.5px}.callout p{margin:0}.callout mark{color:inherit;background:linear-gradient(#0000 55%,#ffe36b 55%)}.callout .close.aim{color:#fff;background:#e2574c;border-radius:50%}.callout .close{color:#5a6680;background:0 0;border:0;width:36px;height:36px;font-size:24px;line-height:1;position:absolute;top:6px;right:8px}.hint{color:var(--muted);white-space:nowrap;pointer-events:none;font-size:12.5px;position:absolute;top:12px;left:50%;transform:translate(-50%)}.toolbar{bottom:calc(16px + env(safe-area-inset-bottom,0px));gap:8px;display:flex;position:absolute;left:50%;transform:translate(-50%)}.cursor{pointer-events:none;z-index:5;width:40px;height:40px;position:absolute;top:-20px;left:-20px}.cursor svg{width:100%;height:100%;transform:rotate(-90deg)}.cursor.idle{opacity:.7;width:18px;height:18px;top:-9px;left:-9px}.cursor.idle .ring,.cursor-name:empty{display:none}.cursor-name{white-space:nowrap;border:1px solid var(--accent);color:var(--accent);background:#070b14d9;border-radius:6px;padding:1px 8px;font-size:13px;position:absolute;top:9px;left:44px}.ring-bg{fill:#7dffb026;stroke:#ffffff80;stroke-width:2px}.ring{fill:none;stroke:var(--accent);stroke-width:4px;stroke-dasharray:100.5;stroke-dashoffset:100.5px}.cam{border:1px solid var(--line);z-index:4;background:#070b14d9;border-radius:10px;width:180px;font-size:12px;position:absolute;bottom:12px;left:12px;overflow:hidden}.cam-view{aspect-ratio:4/3;position:relative}.cam-view video,.cam-view canvas{object-fit:cover;width:100%;height:100%;position:absolute;inset:0;transform:scaleX(-1)}.cam-state{color:var(--accent);align-items:center;gap:8px;padding:6px 10px;font-weight:700;display:flex}.g-fingers{font:11px var(--mono);color:var(--muted);white-space:nowrap}.g-bar{background:var(--line);flex:1;height:3px;position:relative}.g-bar:after{content:"";background:var(--accent);transform-origin:0;transform:scaleX(var(--p,0));position:absolute;inset:0}.mini{border:1px solid var(--line);width:22px;height:22px;color:var(--muted);background:0 0;border-radius:5px;padding:0;line-height:1}.cam.min .cam-view,.cam.min .cam-pick{display:none}.cam-pick{color:var(--muted);align-items:center;gap:6px;padding:6px 10px 0;display:flex}.cam-pick select{background:var(--bg-2);min-width:0;color:var(--fg);border:1px solid var(--line);font:inherit;border-radius:6px;flex:1;padding:3px 4px}.legend{color:var(--muted);gap:2px;margin:0;padding:0 10px 8px;list-style:none;display:grid;position:static}.legend b{width:128px;color:var(--fg);font-weight:500;display:inline-block}.panel{border-left:1px solid var(--line);flex-direction:column;grid-area:panel;gap:10px;padding:20px;display:flex;overflow-y:auto}.panel h2{font-size:24px}.panel h3{color:var(--muted);margin-top:8px;font-size:13px;font-weight:500}.panel p{margin:0}.latin.big{color:var(--muted);margin-top:-6px;font-size:17px}.facts{grid-template-columns:auto 1fr;gap:4px 14px;margin:4px 0;font-size:13.5px;display:grid}.facts dt{color:var(--muted)}.facts dd{margin:0}.tags{flex-wrap:wrap;gap:6px;display:flex}.tag{background:var(--bg-2);border:1px solid var(--line);border-radius:6px;padding:3px 9px;font-size:13px}.tag.on,.tag:hover{border-color:var(--accent)}.note{border:1px solid var(--line);background:var(--bg-2);border-radius:8px;padding:10px 12px}.note h3{color:var(--accent);margin:0 0 4px}.back{align-self:flex-start}.login{z-index:10;background:#070b1499;place-items:center;padding:16px;display:grid;position:fixed;inset:0}.login-card{background:var(--bg-2);border:1px solid var(--line);border-radius:14px;gap:12px;width:100%;max-width:380px;padding:28px;display:grid}.login-card h1{font-size:28px}.login-card p{margin:0}.err{color:var(--gneg);font-size:13px}@media (width<=860px){body{overflow:auto}.app{grid-template:"top""list""stage"62vh"panel"/100%;height:auto}#brand-title{display:none}.list{border:0;border-bottom:1px solid var(--line);overflow-x:auto}.list ul{padding:6px 16px;display:flex}.list li{flex:none}.sp-text{display:block}.user .dev{display:none}.sp{white-space:nowrap;width:auto}.sp .latin,.sp-shape{display:none}.gram{grid-row:auto}.panel{border:0;padding:16px}.hint{display:none}.cam{width:150px}.legend{display:none}.toolbar{flex-wrap:wrap;justify-content:center;gap:6px;width:calc(100% - 16px)}.toolbar .btn{padding:7px 11px;font-size:14px}}@media (prefers-reduced-motion:reduce){*{transition:none!important}}