:root{--bg:#f6f7fb;--surface:#fff;--text:#1b1f2a;--muted:#6a7184;--line:#d5d9e3;--line-strong:#2a2f3b;--accent:#2f6fed;--accent-ink:#fff;--accent-soft:#e6eefe;--solution:#2f6fed;--warn:#e8890c;--warn-soft:#fff3e0;--error:#d93838;--error-soft:#fde8e8;--selected:#fff6c4;--peer:#f1f4fa;--shadow:0 1px 2px #1018280f, 0 4px 16px #1018280f;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#11141b;--surface:#1a1e27;--text:#e8eaf0;--muted:#9aa1b2;--line:#333a48;--line-strong:#c9cedb;--accent:#5b8ff9;--accent-ink:#0b1020;--accent-soft:#1e2a44;--solution:#7aa7ff;--warn:#f0a33a;--warn-soft:#3a2b14;--error:#ff6b6b;--error-soft:#3d1c1c;--selected:#3a3520;--peer:#20252f;--shadow:0 1px 2px #0000004d, 0 4px 16px #00000040;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Roboto,sans-serif}#app{max-width:1040px;padding:16px 16px calc(24px + env(safe-area-inset-bottom));margin:0 auto}header{align-items:center;gap:12px;margin-bottom:16px;display:flex}header img{width:40px;height:40px}header h1{margin:0;font-size:22px;line-height:1.2}header .badge{background:var(--accent-soft);color:var(--accent);vertical-align:3px;border-radius:999px;margin-left:6px;padding:1px 7px;font-size:12px;font-weight:600;display:inline-block}header p{color:var(--muted);margin:2px 0 0;font-size:14px}.lang{border:1px solid var(--line);color:var(--muted);cursor:pointer;background:0 0;border-radius:8px;margin-left:auto;padding:6px 10px;font-size:13px}.layout{gap:16px;display:grid}@media (width>=860px){.layout{grid-template-columns:1fr 1fr;align-items:start}}.card{background:var(--surface);box-shadow:var(--shadow);border-radius:16px;padding:16px}.inputs{grid-template-columns:1fr 1fr;gap:10px;display:grid}.btn{border:1px solid var(--line);background:var(--surface);min-height:48px;color:var(--text);cursor:pointer;-webkit-user-select:none;user-select:none;border-radius:12px;justify-content:center;align-items:center;gap:8px;padding:0 16px;font-size:16px;font-weight:600;display:inline-flex}.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}.btn:active{transform:translateY(1px)}.btn svg{width:20px;height:20px}.drop{border:2px dashed var(--line);text-align:center;min-height:160px;color:var(--muted);border-radius:12px;justify-content:center;align-items:center;margin-top:12px;padding:16px;font-size:14px;display:flex;position:relative;overflow:hidden}.drop.dragging{border-color:var(--accent);background:var(--accent-soft)}.drop.has-photo{border:none;min-height:0;padding:0}.drop canvas{touch-action:none;border-radius:12px;width:100%;height:auto;display:block}.hint{color:var(--muted);text-align:center;margin:8px 0 0;font-size:13px}.status{min-height:22px;margin:0 0 12px;font-size:15px;line-height:1.5}.beta-note{color:var(--muted);margin:-6px 0 12px;font-size:13px}.status.warn{color:var(--warn)}.status.error{color:var(--error)}.board{aspect-ratio:1;border:2px solid var(--line-strong);-webkit-user-select:none;user-select:none;border-radius:6px;grid-template-columns:repeat(9,1fr);width:100%;max-width:480px;margin:0 auto;display:grid;overflow:hidden}.cell{font-variant-numeric:tabular-nums;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface);cursor:pointer;justify-content:center;align-items:center;font-size:clamp(18px,5.6vw,28px);display:flex;position:relative}.cell:nth-child(9n){border-right:none}.cell:nth-child(9n+3),.cell:nth-child(9n+6){border-right:2px solid var(--line-strong)}.cell:nth-child(n+19):nth-child(-n+27),.cell:nth-child(n+46):nth-child(-n+54){border-bottom:2px solid var(--line-strong)}.cell:nth-child(n+73){border-bottom:none}.cell.peer{background:var(--peer)}.cell.selected{background:var(--selected)}.cell.given{font-weight:700}.cell.solution{color:var(--solution);font-weight:500}.cell.low{box-shadow:inset 0 0 0 2px var(--warn);background:var(--warn-soft)}.cell.conflict{color:var(--error);background:var(--error-soft)}.pad{grid-template-columns:repeat(5,1fr);gap:8px;max-width:480px;margin:12px auto 0;display:grid}.pad .btn{min-height:44px;padding:0;font-size:18px}.actions{grid-template-columns:2fr 1fr;gap:10px;max-width:480px;margin:12px auto 0;display:grid}footer{text-align:center;color:var(--muted);margin-top:24px;font-size:13px;line-height:1.6}footer a{color:inherit}footer nav{flex-wrap:wrap;justify-content:center;gap:4px 16px;display:flex}.spinner{vertical-align:-2px;border:2px solid;border-right-color:#0000;border-radius:50%;width:14px;height:14px;margin-right:6px;animation:.8s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.sr-only{clip:rect(0 0 0 0);width:1px;height:1px;position:absolute;overflow:hidden}