:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;color:#17223b;font-synthesis:none;text-rendering:optimizelegibility;--ink:#17223b;--muted:#657089;--paper:#fffdf8;--line:#d7d8d1;--accent:#f05a3c;--accent-dark:#ca3f25;--teal:#087f78;--soft-teal:#e3f2ee;--danger:#a82525;--shadow:0 18px 55px #18223b1a;background:#f3f0e9;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans TC,sans-serif}*{box-sizing:border-box}body{background-color:#f3f0e9;background-image:linear-gradient(90deg,#17223b08 1px,#0000 1px),linear-gradient(#17223b08 1px,#0000 1px),none;background-position:0 0,0 0,0 0;background-repeat:repeat,repeat,repeat;background-size:32px 32px;background-attachment:scroll,scroll,scroll;background-origin:padding-box,padding-box,padding-box;background-clip:border-box,border-box,border-box;min-width:320px;min-height:100vh;margin:0}button,input,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}a{color:var(--teal)}.skip-link{z-index:20;color:#fff;background:var(--ink);padding:.75rem 1rem;position:fixed;top:.75rem;left:.75rem;transform:translateY(-160%)}.skip-link:focus{transform:translateY(0)}.site-header{justify-content:space-between;align-items:flex-end;gap:2rem;max-width:1440px;margin:0 auto;padding:3.5rem clamp(1rem,4vw,4rem) 2rem;display:flex}.eyebrow,.section-index{color:var(--accent-dark);letter-spacing:.14em;margin:0 0 .55rem;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.76rem;font-weight:800}h1,h2,h3,p{margin-top:0}h1{letter-spacing:-.055em;max-width:850px;margin-bottom:.75rem;font-family:Georgia,Noto Serif TC,serif;font-size:clamp(2.5rem,6vw,5.8rem);font-weight:700;line-height:.95}.lede{max-width:760px;color:var(--muted);margin-bottom:0;font-size:clamp(1rem,2vw,1.22rem);line-height:1.65}.guarantee-card{background:var(--soft-teal);border:1px solid #b8d3cc;flex:none;align-items:center;gap:.8rem;min-width:230px;padding:1rem 1.1rem;display:flex}.guarantee-card div{gap:.15rem;display:grid}.guarantee-card span:last-child{color:#3e6c67;font-size:.82rem}.status-dot{background:var(--teal);border-radius:50%;width:.68rem;height:.68rem;box-shadow:0 0 0 5px #087f781f}.workspace{border-top:1px solid var(--line);border-bottom:1px solid var(--line);grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);max-width:1440px;margin:0 auto;padding:0 clamp(1rem,4vw,4rem);display:grid}.panel{background:#fffdf8e6;min-width:0;padding:clamp(1.5rem,3vw,3rem)}.input-panel{border-right:1px solid var(--line)}.section-heading{justify-content:space-between;align-items:flex-start;gap:1rem;margin-bottom:2rem;display:flex}.section-heading h2{letter-spacing:-.035em;margin:0;font-size:clamp(1.65rem,3vw,2.4rem)}.field{gap:.5rem;margin-bottom:1.35rem;display:grid}.field label,legend{color:var(--ink);font-size:.86rem;font-weight:750}.field input,.field textarea{width:100%;color:var(--ink);background:#fff;border:1px solid #bfc2bb;border-radius:0;outline:none;transition:border-color .15s,box-shadow .15s}.field input{height:3rem;padding:0 .85rem}.field textarea{resize:vertical;min-height:4.8rem;padding:.8rem}.field input:focus,.field textarea:focus{border-color:var(--teal);box-shadow:0 0 0 3px #087f781f}.field-hint{color:var(--muted);margin:0;font-size:.78rem;line-height:1.45}.mode-switch{border:0;grid-template-columns:repeat(2,1fr);gap:.55rem;margin:0 0 1rem;padding:0;display:grid}.mode-switch legend{margin-bottom:.55rem}.mode-switch label{position:relative}.mode-switch input{opacity:0;position:absolute}.mode-switch span{color:var(--muted);text-align:center;background:#fff;border:1px solid #bfc2bb;padding:.8rem 1rem;display:block}.mode-switch input:checked+span{border-color:var(--ink);background:var(--ink);color:#fff}.mode-switch input:focus-visible+span{outline-offset:2px;outline:3px solid #087f784d}.examples{color:var(--muted);flex-wrap:wrap;align-items:center;gap:.5rem;margin-bottom:1.4rem;font-size:.78rem;display:flex}.example-button{color:var(--ink);background:0 0;border:1px solid #c9cbc4;padding:.35rem .62rem}.example-button:hover{border-color:var(--teal);color:var(--teal)}.function-list{gap:.85rem;display:grid}.function-card{border:1px solid var(--line);background:#fff}.function-header{border-bottom:1px solid var(--line);background:#f7f6f1;justify-content:space-between;align-items:center;padding:.8rem .9rem;display:flex}.function-header strong{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.function-fields{grid-template-columns:.72fr 1fr 1fr;gap:.75rem;padding:.9rem;display:grid}.function-fields .field{margin:0}.prime-field{grid-column:1/-1}.icon-button{color:var(--danger);background:0 0;border:0;font-size:.8rem;font-weight:750}.input-actions{justify-content:space-between;gap:.8rem;margin-top:1rem;display:flex}.button{border:1px solid #0000;justify-content:center;align-items:center;gap:1rem;min-height:2.65rem;padding:.65rem 1rem;font-weight:750;display:inline-flex}.button-primary{background:var(--accent);color:#fff;flex:1}.button-primary:hover{background:var(--accent-dark)}.button-secondary{border-color:var(--ink);color:var(--ink);background:#fff}.button-ghost{min-height:auto;color:var(--muted);background:0 0;border:0;padding:.4rem 0}.validation-summary{border-left:4px solid var(--danger);color:#771d1d;background:#fff0ed;margin-top:1rem;padding:.9rem 1rem}.validation-summary strong{margin-bottom:.4rem;display:block}.validation-summary ul{margin:0;padding-left:1.2rem}.result-region{min-height:540px}.empty-state{text-align:center;place-content:center;min-height:500px;display:grid}.logic-mark{border:1px solid var(--line);width:5rem;height:5rem;color:var(--accent);margin:0 auto 1.2rem;font-family:Georgia,serif;font-size:3rem;line-height:4.8rem}.empty-state h3{margin-bottom:.4rem;font-size:1.35rem}.empty-state p{color:var(--muted)}.result-status{flex-wrap:wrap;gap:.5rem;margin-bottom:1.4rem;display:flex}.badge{background:var(--soft-teal);color:#17645f;border:1px solid #b8d3cc;padding:.35rem .58rem;font-size:.75rem;font-weight:750;display:inline-flex}.solution-list{gap:.75rem;display:grid}.solution-card{border:1px solid var(--line);background:#fff;padding:1rem}.solution-card h3{color:var(--muted);letter-spacing:.08em;margin-bottom:.45rem;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.78rem}.expression{overflow-wrap:anywhere;margin-bottom:.8rem;font-family:Georgia,Noto Serif TC,serif;font-size:clamp(1.5rem,4vw,2.5rem);line-height:1.25}.pattern-row{flex-wrap:wrap;gap:.4rem;display:flex}.pattern{background:#f1f0eb;padding:.28rem .45rem;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.78rem}.metrics{border:1px solid var(--line);grid-template-columns:repeat(3,1fr);margin:1.2rem 0;display:grid}.metric{border-right:1px solid var(--line);padding:.9rem}.metric:last-child{border-right:0}.metric strong,.metric span{display:block}.metric strong{font-size:1.4rem}.metric span{color:var(--muted);margin-top:.2rem;font-size:.72rem}.details{border-top:1px solid var(--line);margin-top:1rem}.details summary{cursor:pointer;padding:.9rem 0;font-weight:750}.prime-table{border-collapse:collapse;width:100%;font-size:.78rem}.prime-table th,.prime-table td{border-bottom:1px solid var(--line);text-align:left;padding:.55rem}.prime-table th{color:var(--muted);font-weight:650}.result-error{border-left:4px solid var(--danger);background:#fff0ed;padding:1rem}.evidence-strip{grid-template-columns:repeat(3,1fr);max-width:1440px;margin:0 auto;padding:0 clamp(1rem,4vw,4rem);display:grid}.evidence-strip>div{border-right:1px solid var(--line);gap:.2rem;padding:1.4rem;display:grid}.evidence-strip>div:first-child{border-left:1px solid var(--line)}.evidence-value{font-family:Georgia,serif;font-size:1.5rem;font-weight:700}.evidence-label{color:var(--muted);font-size:.76rem}footer{max-width:1440px;color:var(--muted);margin:0 auto;padding:2rem clamp(1rem,4vw,4rem) 3rem;font-size:.82rem}footer p{margin:0}@media (width<=900px){.site-header{flex-direction:column;align-items:flex-start}.workspace{grid-template-columns:1fr}.input-panel{border-right:0;border-bottom:1px solid var(--line)}.result-region,.empty-state{min-height:360px}}@media (width<=620px){.site-header{padding-top:2rem}.guarantee-card{width:100%}.function-fields{grid-template-columns:1fr}.prime-field{grid-column:auto}.input-actions{flex-direction:column}.button-primary{min-height:3.2rem}.metrics,.evidence-strip{grid-template-columns:1fr}.metric,.evidence-strip>div{border-right:0;border-bottom:1px solid var(--line)}.evidence-strip>div:first-child{border-left:0}}
