:root{--ink:#0d1b1e;--ink-2:#13272b;--ink-3:#1b353a;--line:#2a4a50;--text:#e8efe9;--muted:#9fb5b0;--amber:#f2b45a;--amber-ink:#2a1a04;--yes:#7fd39b;--no:#f28b82;--partly:#f2c46b;--irrelevant:#9fb5b0;--radius:14px;--font-serif:"Songti SC", "Noto Serif SC", "Source Han Serif SC", serif;--font-sans:system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;font-family:var(--font-sans);color:var(--text);background:radial-gradient(1200px 600px at 50% -200px, #1f4a4f 0%, transparent 70%), var(--ink);min-height:100%;font-size:16px;line-height:1.7}*{box-sizing:border-box}body{min-height:100vh;margin:0}h1,h2,h3{font-family:var(--font-serif);margin:0;font-weight:700;line-height:1.35}p{margin:0}button{font:inherit}:focus-visible{outline:2px solid var(--amber);outline-offset:2px}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.muted{color:var(--muted)}.small{font-size:.85rem}.center{text-align:center;padding:2rem 0}.shell{max-width:880px;margin:0 auto;padding:1.5rem 1rem 3rem}.masthead{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:1rem;margin-bottom:2rem;display:flex}.brand{color:var(--text);font-family:var(--font-serif);cursor:pointer;background:0 0;border:0;align-items:center;gap:.5rem;padding:0;font-size:1.5rem;font-weight:700;display:inline-flex}.brand:disabled{cursor:default}.brand-mark{font-size:1.6rem}.tagline{color:var(--muted);font-family:var(--font-serif);letter-spacing:.1em}.btn{border:1px solid var(--line);background:var(--ink-3);color:var(--text);cursor:pointer;white-space:nowrap;border-radius:999px;padding:.5rem 1.25rem;transition:background .15s,border-color .15s,transform .1s}.btn:hover:not(:disabled){border-color:var(--muted)}.btn:active:not(:disabled){transform:translateY(1px)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.primary{background:var(--amber);border-color:var(--amber);color:var(--amber-ink);font-weight:600}.btn.primary:hover:not(:disabled){background:#f6c47a;border-color:#f6c47a}.btn.ghost{background:0 0}.btn.small{padding:.25rem .85rem;font-size:.85rem}.alert{color:#ffd2cd;border-radius:var(--radius);background:#2c1716;border:1px solid #6b3a36;justify-content:space-between;align-items:center;gap:1rem;margin:1rem 0;padding:.75rem 1rem;display:flex}.rules{margin-bottom:1.5rem}.rules h1{margin-bottom:.5rem;font-size:1.75rem}.rules p{color:var(--muted);max-width:40em}.rules strong{color:var(--amber);font-weight:600}.puzzle-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1rem;margin:0;padding:0;list-style:none;display:grid}.puzzle-card{background:var(--ink-2);border:1px solid var(--line);border-radius:var(--radius);flex-direction:column;gap:.75rem;height:100%;padding:1.25rem;transition:border-color .15s;display:flex}.puzzle-card:hover{border-color:var(--muted)}.puzzle-card.locked{border-style:dashed}.puzzle-card.locked:hover{border-color:var(--line)}.locked-badge{color:var(--muted);border:1px dashed var(--line);white-space:nowrap;border-radius:999px;padding:.25rem .85rem;font-size:.85rem}.puzzle-card header{justify-content:space-between;align-items:center;gap:.5rem;display:flex}.puzzle-card h2{font-size:1.2rem}.surface-preview{color:var(--muted);-webkit-line-clamp:4;-webkit-box-orient:vertical;flex:1;font-size:.95rem;display:-webkit-box;overflow:hidden}.puzzle-card footer{justify-content:space-between;align-items:center;gap:.5rem;display:flex}.tags{flex-wrap:wrap;gap:.35rem;display:flex}.tag{color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:0 .6rem;font-size:.75rem}.difficulty{white-space:nowrap;border:1px solid;border-radius:999px;padding:.05rem .6rem;font-size:.75rem}.difficulty.d1{color:var(--yes)}.difficulty.d2{color:var(--partly)}.difficulty.d3{color:var(--no)}.game{flex-direction:column;gap:1rem;display:flex}.surface{background:linear-gradient(160deg, var(--ink-3), var(--ink-2));border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem}.surface-head{align-items:center;gap:.75rem;margin-bottom:.75rem;display:flex}.surface-head h1{font-size:1.5rem}.surface-text{font-family:var(--font-serif);font-size:1.1rem;line-height:1.9}.counters{border-top:1px dashed var(--line);gap:1.5rem;margin:1.25rem 0 0;padding-top:1rem;display:flex}.counters div{align-items:baseline;gap:.4rem;display:flex}.counters dt{color:var(--muted);font-size:.85rem}.counters dd{font-variant-numeric:tabular-nums;color:var(--amber);margin:0;font-size:1.15rem;font-weight:600}.log ol{flex-direction:column;gap:.6rem;margin:0;padding:0;list-style:none;display:flex}.log-empty{padding:1.5rem 0}.entry{background:var(--ink-2);border:1px solid var(--line);border-radius:var(--radius);grid-template-columns:1fr auto;align-items:center;gap:.25rem 1rem;padding:.75rem 1rem;animation:.25s ease-out rise;display:grid}.entry.guess{background:#1f1d14;border-color:#5a4a2a}.entry-label{color:var(--amber);grid-column:1/-1;font-size:.8rem}.entry.guess .entry-text{grid-column:1/-1}.entry.guess .reply{grid-column:1/-1;justify-self:start}.entry-text{word-break:break-word}.reply{white-space:nowrap;align-items:center;gap:.4rem;font-weight:600;display:inline-flex}.reply.yes{color:var(--yes)}.reply.no{color:var(--no)}.reply.partly{color:var(--partly)}.reply.irrelevant,.reply.invalid{color:var(--irrelevant)}.key-badge{color:var(--amber-ink);background:var(--amber);border-radius:4px;padding:0 .35rem;font-size:.7rem;font-weight:700}.hint{color:var(--muted);grid-column:1/-1;font-size:.85rem}.pending{opacity:.85}.thinking{color:var(--muted);white-space:nowrap;font-size:.9rem}.thinking:after{content:"";text-align:left;width:1.2em;animation:1.2s steps(4,end) infinite dots;display:inline-block}.composer{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid var(--line);border-radius:var(--radius);background:#13272beb;padding:.75rem;position:sticky;bottom:.75rem;box-shadow:0 10px 30px #00000059}.mode-tabs{background:var(--ink);border-radius:999px;gap:.25rem;margin-bottom:.6rem;padding:.2rem;display:inline-flex}.mode-tabs button{color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:999px;padding:.25rem 1rem}.mode-tabs button.active{background:var(--ink-3);color:var(--text)}.mode-tabs button:disabled{opacity:.4;cursor:not-allowed}.composer textarea{resize:vertical;width:100%;min-height:3rem;font:inherit;color:var(--text);background:var(--ink);border:1px solid var(--line);border-radius:10px;padding:.6rem .8rem}.composer textarea::placeholder{color:#6f8783}.composer textarea:focus{border-color:var(--amber);outline:none}.composer-foot{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem;margin-top:.5rem;display:flex}.composer-actions{gap:.5rem;margin-left:auto;display:flex}.reveal{background:var(--ink-2);border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem;animation:.35s ease-out rise}.reveal.solved{border-color:var(--yes)}.reveal h2{margin-bottom:.25rem;font-size:1.5rem}.reveal.solved h2{color:var(--yes)}.reveal h3{color:var(--amber);margin:1.25rem 0 .4rem;font-size:1rem}.truth{font-family:var(--font-serif);font-size:1.05rem;line-height:1.9}.key-points{color:var(--muted);margin:0 0 1.5rem;padding-left:1.25rem}@keyframes rise{0%{opacity:0;transform:translateY(6px)}}@keyframes dots{0%{content:""}25%{content:"."}50%{content:".."}75%{content:"..."}}@media (width<=560px){.shell{padding-top:1rem}.masthead{margin-bottom:1.25rem}.tagline{display:none}.surface{padding:1.1rem}.counters{gap:1rem}.composer{bottom:.5rem}.composer-foot .small{display:none}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important;animation:none!important}}