:root{--bg:#f7f5f0;--surface:#fff;--ink:#1d2433;--ink-soft:#4a5468;--line:#d9d4c7;--accent:#1f6f5c;--accent-ink:#fff;--good:#2e8b57;--good-soft:#dff3e7;--calm:#8a94a6;--warn:#b26b00;--radius:22px;--shadow:0 2px 10px #1d243314;--font:system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--word-size:clamp(30px, 4.6vw, 44px)}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--ink);font-family:var(--font);-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none;overscroll-behavior:none;font-size:20px;line-height:1.5}button{font:inherit;color:inherit;cursor:pointer}input,select,textarea{font:inherit}a{color:var(--accent)}.mum{flex-direction:column;align-items:center;min-height:100dvh;padding:24px 16px 32px;display:flex}.mum-stage{flex-direction:column;flex:1;align-items:center;gap:24px;width:100%;max-width:880px;margin-left:max(0px,50% - 480px);margin-right:auto;display:flex}.corner{border:1px solid 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var(--line);background:var(--surface);width:160px;height:160px;box-shadow:var(--shadow);color:var(--ink);place-items:center;font-size:64px;text-decoration:none;display:grid}.prompt-bar{align-items:center;gap:20px;min-height:96px;display:flex}.replay{background:var(--accent);width:96px;height:96px;color:var(--accent-ink);box-shadow:var(--shadow);border:none;border-radius:50%;flex:none;font-size:44px}.word{font-size:var(--word-size);letter-spacing:.01em;min-height:1.5em;font-weight:700}.word.hidden{visibility:hidden}.choices{justify-content:center;gap:18px;width:100%;display:grid}.choices.n2{grid-template-columns:repeat(2,minmax(0,320px))}.choices.n3{grid-template-columns:repeat(3,minmax(0,280px))}.choices.n4{grid-template-columns:repeat(2,minmax(0,250px))}.choices.n5,.choices.n6{grid-template-columns:repeat(3,minmax(0,240px))}@media 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solid var(--line);border-radius:16px;margin-bottom:16px;padding:16px}.row{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.field{flex-direction:column;gap:4px;margin-bottom:12px;font-size:17px;display:flex}.field input[type=text],.field input[type=password],.field select{border:1px solid var(--line);background:#fff;border-radius:10px;min-width:0;padding:10px 12px}.btn{border:1px solid var(--line);background:var(--surface);border-radius:12px;min-height:44px;padding:10px 16px;font-size:17px}.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}.btn.danger{color:#8b3a3a}.btn.rec{color:#b00020}.btn:disabled{opacity:.5;cursor:default}.grid-words{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px;display:grid}.word-tile{border:1px solid var(--line);background:var(--surface);text-align:left;border-radius:14px;padding:0;overflow:hidden}.word-tile .pic{aspect-ratio:1;background:var(--bg)}.word-tile .pic .emoji{font-size:56px}.word-tile 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