:root{--bg:#f7f6f2;--panel:#fff;--text:#22211f;--muted:#77736b;--line:#e2dfd7;--accent:#2f6fdb;--good:#2e9e5b;--bad:#d4432f;--uncal:#b9b4a8;--next:#f2b632;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;font-family:system-ui,Noto Sans TC,Microsoft JhengHei,sans-serif}@media (prefers-color-scheme:dark){:root{--bg:#1b1b1d;--panel:#252528;--text:#ecebe7;--muted:#9a978f;--line:#38383c;--accent:#6b9cff;--good:#48c27a;--bad:#ef6450;--uncal:#66635c;--next:#e0a92a;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0}#app{flex-direction:column;gap:14px;max-width:860px;margin:0 auto;padding:16px;display:flex}header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}h1{margin:0;font-size:1.3rem}button{font:inherit;color:inherit;cursor:pointer;touch-action:manipulation}.tabs{background:var(--panel);border:1px solid var(--line);border-radius:10px;gap:4px;padding:3px;display:flex}.tab{background:0 0;border:0;border-radius:7px;padding:6px 12px}.tab.on{background:var(--accent);color:#fff}.settings{color:var(--muted);flex-wrap:wrap;gap:8px 16px;font-size:.9rem;display:flex}.settings select{font:inherit;color:var(--text);background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:2px 4px}.stats{flex-wrap:wrap;gap:8px;display:flex}.stat{background:var(--panel);border:1px solid var(--line);border-radius:10px;flex-direction:column;min-width:90px;padding:6px 12px;display:flex}.stat span{color:var(--muted);font-size:.75rem}.stat b{font-variant-numeric:tabular-nums;font-size:1.1rem}.stat small{color:var(--muted);font-size:.75rem;font-weight:400}.charset{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:10px 12px}.charset-head{color:var(--muted);flex-wrap:wrap;justify-content:space-between;gap:8px;margin-bottom:8px;font-size:.85rem;display:flex}.tiles{flex-wrap:wrap;gap:5px;display:flex}.tile{background:var(--c);color:#fff;border-radius:7px;place-items:center;width:34px;height:34px;font-size:1.15rem;display:grid}.tile.locked{color:var(--uncal);border:1px dashed var(--line);background:0 0}.todo{margin-top:8px;font-size:.85rem}.todo p{margin:2px 0}.todo ul{flex-wrap:wrap;gap:4px 14px;margin:2px 0;padding:0;list-style:none;display:flex}.todo b{font-size:1.05rem}.notice{background:color-mix(in oklab, var(--good) 18%, var(--panel));color:var(--text);border-radius:8px;margin:0 0 8px;padding:6px 10px;font-weight:700}.tile.focus{outline:3px solid var(--next);outline-offset:1px}.text{background:var(--panel);border:1px solid var(--line);letter-spacing:.08em;border-radius:12px;flex-wrap:wrap;gap:2px 4px;padding:18px;font-size:2rem;line-height:1.6;display:flex}.ch{color:var(--muted);border-bottom:3px solid #0000;padding:0 2px}.ch.cur{color:var(--text);border-bottom-color:var(--accent)}.ch.ok{color:var(--good)}.ch.bad{color:var(--bad)}.text.shake{border-color:var(--bad);animation:.2s shake}@keyframes shake{25%{transform:translate(-4px)}75%{transform:translate(4px)}}.hint{text-align:center;flex-direction:column;align-items:center;gap:6px;min-height:96px;display:flex}.hint p{margin:0}.buf{border:2px solid var(--line);background:var(--panel);letter-spacing:.2em;font-variant-numeric:tabular-nums;border-radius:8px;min-width:200px;padding:6px 16px;font-size:1.5rem}.buf .ph{letter-spacing:normal;color:var(--muted);font-size:.9rem}.breakdown{text-align:left;background:var(--panel);border:1px solid var(--line);border-radius:12px;width:100%;max-width:620px;padding:10px 14px}.bd-head{flex-wrap:wrap;align-items:center;gap:6px;font-size:1.05rem;display:flex}.bd-head .big{font-size:2rem;line-height:1}.bd-head kbd{letter-spacing:.1em;font-size:1rem}.bd-segs{flex-direction:column;gap:6px;margin:8px 0 0;padding:0;list-style:none;display:flex}.bd-segs li{align-items:flex-start;gap:10px;display:flex}.bd-code{text-align:center;border:1px solid var(--line);font-variant-numeric:tabular-nums;border-radius:6px;flex:none;min-width:44px;padding:2px 6px;font-size:1.2rem;font-weight:700}.bd-roots{font-size:1.05rem}.bd-roots small{color:var(--muted);margin-right:4px;font-size:.75rem}.bd-why{color:var(--muted);font-size:.85rem}.bd-note{color:var(--accent);font-size:.85rem}.bd-rules{color:var(--muted);margin:8px 0 0;padding-left:1.2em;font-size:.85rem}.bd-rules b{color:var(--text)}.review{text-align:left;width:100%;max-width:620px}.review summary{cursor:pointer;padding:4px 0;font-size:.9rem}.review.ok summary{color:var(--good)}.review.bad summary{color:var(--bad)}.review .breakdown{opacity:.9}.pinned{z-index:6;background:var(--bg);border-bottom:1px solid var(--line);flex-direction:column;align-items:center;gap:8px;margin:0 -16px;padding:8px 16px;display:flex;position:sticky;top:0}.pinned .text{width:100%}.pinned .kbd{background:0 0;border:0;margin:0;padding:0;position:static}.kbd.grid3.native{grid-template-columns:1fr 1fr 1fr 2fr;width:100%;max-width:none}.kbd.grid3.native .key,.kbd.grid3.native .key.wide{grid-column:auto;min-height:44px}.help-btn{border:1px solid var(--line);background:var(--panel);vertical-align:middle;border-radius:50%;width:26px;height:26px;margin-left:4px;padding:0;font-size:.9rem;font-weight:700}#help{border:1px solid var(--line);background:var(--panel);width:calc(100% - 32px);max-width:560px;max-height:85vh;color:var(--text);border-radius:14px;padding:8px 20px 16px;line-height:1.7;overflow:auto}#help::backdrop{background:#00000073}#help h2{margin:8px 0;font-size:1.15rem}#help h3{margin:14px 0 2px;font-size:1rem}#help ul{margin:0;padding-left:1.2em}#help p{color:var(--muted);margin:12px 0 0;font-size:.9rem}.help-head{background:var(--panel);justify-content:space-between;align-items:center;display:flex;position:sticky;top:0}.help-close{background:0 0;border:0;padding:4px 8px;font-size:1.2rem}.todo{flex-wrap:wrap;align-items:baseline;gap:4px 10px;display:flex}.todo ul{margin:0}.records{flex-direction:column;gap:10px;display:flex}.table-wrap{background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow-x:auto}.records table{border-collapse:collapse;white-space:nowrap;width:100%;font-size:.9rem}.records th,.records td{border-bottom:1px solid var(--line);text-align:left;padding:5px 8px}.records th{color:var(--muted);background:var(--panel);font-size:.8rem;font-weight:400;position:sticky;top:0}.records td.num{text-align:right;font-variant-numeric:tabular-nums}.records td.bad{color:var(--bad)}.records .ok{color:var(--good)}.records .tile{width:30px;height:30px;font-size:1.05rem}.guide{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:4px 20px 16px;line-height:1.75}.guide h2{margin:20px 0 6px;font-size:1.1rem}.guide code{background:var(--bg);border-radius:4px;padding:0 4px}.guide li{margin:2px 0}.guide .strokes{border-collapse:collapse;width:100%;font-size:.92rem}.guide .strokes th,.guide .strokes td{border-bottom:1px solid var(--line);text-align:left;padding:4px 8px}.guide .strokes .big{font-size:1.3rem}.muted{color:var(--muted);font-size:.85rem}kbd{border:1px solid var(--line);background:var(--panel);border-bottom-width:2px;border-radius:4px;padding:0 5px;font-size:.85em}.kbd{gap:6px;display:grid}.kbd.row{grid-template-columns:repeat(10,1fr)}.kbd.grid3{grid-template-columns:repeat(3,1fr);width:100%;max-width:360px;margin:0 auto}.kbd.grid3 .key b{font-size:1.5rem;line-height:1.1}.kbd.grid3 .key.wide{grid-column:1/-1}.kbd .fn{background:var(--bg)}.key{background:var(--panel);border:1px solid var(--line);border-bottom-width:3px;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:1px;min-height:64px;padding:6px 2px;display:flex}.key b{font-size:1.1rem}.key span{font-size:1rem}.key small{color:var(--muted);font-size:.7rem}.key.next{background:var(--next);border-color:var(--next);color:#000}.key.next small{color:#000}.kbd.row .wide{grid-column:span 6}.kbd.row [data-act=back],.kbd.row [data-act=hint]{grid-column:span 2}.key.wide{flex-direction:row;gap:8px;font-weight:700}#native-input{opacity:0;pointer-events:none;border:0;width:1px;height:1px;padding:0;font-size:16px;position:fixed;top:0;left:0}.key:active{transform:translateY(1px)}.warn{color:var(--bad);margin:0}.link{color:var(--accent);font-size:inherit;background:0 0;border:0;padding:0;text-decoration:underline}footer{color:var(--muted);border-top:1px solid var(--line);padding-top:8px;font-size:.8rem}footer p{margin:4px 0}@media (width<=600px){#app{padding-bottom:0}.kbd{z-index:5;padding:6px 8px calc(6px + env(safe-area-inset-bottom));background:var(--bg);border-top:1px solid var(--line);gap:4px;margin:0 -16px;position:sticky;bottom:0}.kbd.grid3{max-width:none}#app>header{order:0}#app>.text,#app>.pinned{order:1}#app>.hint{order:2}#app>.warn{order:3}#app>.stats{order:4}#app>.charset{order:5}#app>.settings{order:6}#app>.kbd{order:7}#app>footer{order:8}.kbd.grid3 .key[data-act=key]{flex-direction:row;gap:6px;min-height:46px}.kbd.grid3 .key[data-act=key] small{display:none}.kbd.grid3 .key[data-act=key] span{color:var(--muted);font-size:.95rem}.kbd.grid3 .key.next span{color:#000}.kbd.grid3 .fn{min-height:46px}.kbd.grid3 .key.wide{min-height:44px}.text{font-size:1.5rem;line-height:1.5}.kbd.row{grid-template-columns:repeat(5,1fr)}.kbd.row .wide{grid-column:span 3}.kbd.row [data-act=hint],.kbd.row [data-act=back]{grid-column:span 1}.key{min-height:52px;padding:2px}.key span{font-size:.8rem}.key small{font-size:.65rem}header{gap:8px}h1{font-size:1.1rem}.tab{padding:5px 8px;font-size:.9rem}.tile{width:30px;height:30px;font-size:1rem}footer{padding-bottom:8px}.kbd{-webkit-user-select:none;user-select:none}.text{padding:10px 12px}}