:root{--ink:#1f2430;--muted:#636b7a;--line:#d9dee8;--bg:#f5f7fb;--card:#fff;--brand:#3b5bdb;--brand-soft:#e7ecff;--ok:#2b8a3e;--bad:#e03131;--hl:#fff3bf;--cell:clamp(22px, calc((100vw - 64px) / var(--cols,12)), 38px);color:var(--ink);background:var(--bg);font-family:system-ui,-apple-system,Segoe UI,Roboto,Noto Sans TC,PingFang TC,Microsoft JhengHei,sans-serif}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit;color:inherit}.topbar{background:var(--card);border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;padding:12px 20px;display:flex}.brand{align-items:center;gap:8px;font-weight:700;display:flex}.logo{background:var(--brand);color:#fff;border-radius:7px;place-items:center;width:28px;height:28px;display:inline-grid}.link-btn{border:1px solid var(--line);cursor:pointer;background:0 0;border-radius:999px;padding:4px 12px}main{max-width:1200px;margin:0 auto;padding:0 16px 24px}.hero{text-align:center;padding:28px 8px 18px}.hero h1{letter-spacing:-.01em;margin:0 0 8px;font-size:clamp(1.5rem,4vw,2.3rem)}.hero p{color:var(--muted);margin:0}.layout{grid-template-columns:minmax(300px,420px) 1fr;align-items:start;gap:18px;display:grid}@media (width<=860px){.layout{grid-template-columns:1fr}}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;box-shadow:0 1px 2px #00000008}.field{flex-direction:column;gap:6px;margin-bottom:12px;font-size:.92rem;font-weight:600;display:flex}.field input,.field textarea,.field select{border:1px solid var(--line);background:#fff;border-radius:10px;width:100%;padding:10px 12px;font-weight:400}.field textarea{resize:vertical;min-height:220px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,Noto Sans TC,monospace;font-size:.95rem;line-height:1.5}.field input:focus,.field textarea:focus,.field select:focus{outline:2px solid var(--brand);outline-offset:0;border-color:var(--brand)}.help{color:var(--muted);margin:-4px 0 12px;font-size:.88rem}.fine{color:var(--muted);margin:6px 0 0;font-size:.8rem}.note{color:var(--ok);font-size:.88rem}.row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.btn{border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:10px;padding:9px 14px;font-weight:600}.btn:hover{border-color:var(--brand)}.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}.btn.primary:hover{filter:brightness(1.08)}.btn.ghost{background:0 0}#generate{flex:1;padding:12px 16px;font-size:1.02rem}.bank{border-top:1px dashed var(--line);margin-top:16px;padding-top:12px}.bank summary{cursor:pointer;color:var(--brand);font-weight:600}.bank-grid{grid-template-columns:1fr 1fr 90px;gap:8px;display:grid}@media (width<=420px){.bank-grid{grid-template-columns:1fr}}.check{align-items:flex-start;gap:8px;margin:6px 0;font-size:.9rem;display:flex}.options{border:1px solid var(--line);border-radius:10px;margin:16px 0 0;padding:8px 12px 10px}.options legend{padding:0 4px;font-size:.9rem;font-weight:600}.result-head h2{margin:0 0 4px}.status{color:var(--muted);margin:0 0 6px;font-size:.9rem}.warn{color:#8a4b0f;background:#fff4e6;border:1px solid #ffd8a8;border-radius:8px;padding:8px 10px;font-size:.9rem}.tabs{border-bottom:1px solid var(--line);gap:4px;margin:14px 0 16px;display:flex;overflow-x:auto}.tab{cursor:pointer;color:var(--muted);white-space:nowrap;background:0 0;border:0;border-bottom:3px solid #0000;padding:9px 14px;font-weight:600}.tab.on{color:var(--brand);border-color:var(--brand)}.grid-wrap{padding-bottom:6px;overflow-x:auto;container-type:inline-size}.grid-wrap .grid{--cell:clamp(20px, calc((100cqw - 2px) / var(--cols)), 38px)}.grid{grid-template-columns:repeat(var(--cols), var(--cell));grid-auto-rows:var(--cell);width:max-content;margin:0 auto;display:grid}.cell{background:#fff;border:1px solid #333;place-items:center;margin:0 -1px -1px 0;display:grid;position:relative}.cell.block{background:0 0;border-color:#0000}.cell .num{font-size:calc(var(--cell) * .3);color:#333;pointer-events:none;line-height:1;position:absolute;top:1px;left:2px}.cell .letter{font-weight:700;font-size:calc(var(--cell) * .55)}.cell input{text-align:center;width:100%;height:100%;font-weight:700;font-size:calc(var(--cell) * .55);text-transform:uppercase;caret-color:var(--brand);background:0 0;border:0;padding:2px 0 0}.cell input:focus{outline:2px solid var(--brand);outline-offset:-2px}.cell.hl{background:var(--hl)}.cell.ok input{color:var(--ok)}.cell.bad{background:#ffe3e3}.cell.bad input{color:var(--bad)}.tab-key .cell .letter{color:var(--brand)}.solve-bar{justify-content:center;margin:12px 0 0}.clues{grid-template-columns:1fr 1fr;gap:18px;margin-top:18px;display:grid}@media (width<=560px){.clues{grid-template-columns:1fr}}.clue-col h3{text-transform:uppercase;letter-spacing:.04em;color:var(--brand);margin:0 0 6px;font-size:1rem}.clue-col ol{margin:0;padding:0;list-style:none}.clue-col li{border-radius:6px;gap:8px;padding:4px 6px;line-height:1.4;display:flex}.clue-col li b{text-align:right;min-width:1.6em}.clue-col li.hl{background:var(--hl)}.tab-solve .clue-col li{cursor:pointer}.len{color:var(--muted);white-space:nowrap;font-size:.85em}.ans{color:var(--brand);text-transform:uppercase;font-style:normal;font-weight:700}.wordbank{border:1px dashed var(--line);border-radius:10px;margin-top:16px;padding:8px 12px}.wordbank h3{margin:0 0 4px;font-size:.95rem}.wordbank p{margin:0;line-height:1.7}.empty{text-align:center;color:var(--muted);padding:40px 10px}.empty-grid{opacity:.35;background:linear-gradient(#333 1px,#0000 1px) 0 0/24px 24px,linear-gradient(90deg,#333 1px,#0000 1px) 0 0/24px 24px;width:120px;height:120px;margin:0 auto 14px}.share-input{border:1px solid var(--line);border-radius:6px;width:100%;margin-top:4px;padding:4px 6px}.footer{text-align:center;max-width:1200px;margin:0 auto;padding:8px 16px 32px}.pro{background:var(--brand-soft);text-align:left;border-radius:12px;max-width:520px;margin:0 auto;padding:14px 18px;font-size:.9rem;display:block}.pro h2{margin:0 0 6px;font-size:1rem}.pro-items{margin:0 0 10px;padding-left:1.2em}.waitlist{flex-wrap:wrap;gap:8px;display:flex}.waitlist input[type=email]{border:1px solid var(--line);background:#fff;border-radius:10px;flex:200px;min-width:0;padding:9px 12px}.waitlist input[type=email]:focus{outline:2px solid var(--brand);border-color:var(--brand)}.waitlist .btn:disabled{opacity:.6;cursor:progress}.wl-msg{min-height:1.2em;margin:8px 0 0;font-weight:600}.wl-msg.ok{color:var(--ok)}.wl-msg.err{color:var(--bad)}.hp{width:1px;height:1px;position:absolute;left:-10000px;overflow:hidden}.sr-only{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.print-only{display:none}@page{margin:12mm}@media print{:root{background:#fff}.no-print{display:none!important}.print-only{display:block}body{-webkit-print-color-adjust:exact;print-color-adjust:exact}.sheet,.sheet .grid{--cell:var(--pcell)}.sheet{color:#000;font-size:11pt}.sheet+.sheet{break-before:page;page-break-before:always}.sheet-head h1{text-align:center;margin:0 0 4mm;font-size:18pt}.nameline{justify-content:space-between;gap:6mm;margin-bottom:6mm;font-size:11pt;display:flex}.nameline span{white-space:nowrap;flex:1;align-items:flex-end;gap:2mm;display:flex}.nameline span:first-child{flex:2}.nameline i{border-bottom:1px solid #000;flex:1;height:1.2em}.sheet-grid{break-inside:avoid;justify-content:center;margin-bottom:5mm;display:flex}.sheet .grid{margin:0}.sheet .cell:not(.block){border-color:#000}.sheet .cell.block{border:0}.sheet .cell .num{font-size:calc(var(--pcell) * .3);top:.3mm;left:.5mm}.sheet .cell .letter{font-size:calc(var(--pcell) * .55);color:#000}.sheet .clues{gap:8mm;margin-top:2mm}.sheet .clue-col h3{color:#000;border-bottom:1px solid #000;padding-bottom:1mm;font-size:11pt}.sheet .clue-col li{break-inside:avoid;padding:.6mm 0}.sheet .ans{color:#000}.sheet .wordbank{border:1px solid #000;margin:0 0 4mm}.sheet-foot{text-align:center;color:#777;margin-top:6mm;font-size:8pt}}