:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;--bg:#f4f6f9;--surface:#fff;--fg:#14213d;--muted:#5c677d;--border:#d5dbe5;--accent:#0b2545;--accent-fg:#fff;--ok:#1a7f37;--ng:#c62828;--warn:#b45309;--ok-bg:#e6f4ea;--ng-bg:#fdecea;--badge-bg:#fff4d6;--badge-fg:#8a5a00;font-family:system-ui,-apple-system,Noto Sans TC,Microsoft JhengHei,sans-serif;line-height:1.5}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--bg:#0d1321;--surface:#161e2e;--fg:#e6ebf2;--muted:#9aa5b8;--border:#2a3448;--accent:#8eb8e5;--accent-fg:#0d1321;--ok:#6fd08c;--ng:#ff8a80;--warn:#f5b041;--ok-bg:#16301f;--ng-bg:#3a1d1d;--badge-bg:#3d3113;--badge-fg:#f5d27a}}*{box-sizing:border-box}body{background:var(--bg);min-height:100vh;color:var(--fg);margin:0}a{color:var(--accent)}button,.button{background:var(--accent);color:var(--accent-fg);font:inherit;cursor:pointer;border:0;border-radius:8px;padding:10px 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16px}dt{color:var(--muted);margin-top:8px;font-size:.85rem}dd{margin:0}.tts{color:var(--muted);font-style:italic}.result{border-radius:8px;margin-top:16px;padding:12px}.result p{margin:4px 0}.result-ok{background:var(--ok-bg)}.result-ng{background:var(--ng-bg)}.verdict{font-weight:700}.mark{margin-right:.3em}.mark-wrong{color:var(--ng);font-weight:700;-webkit-text-decoration:underline wavy;text-decoration:underline wavy}.mark-extra{color:var(--warn);text-decoration:line-through}.mark-missing{color:var(--ng);font-weight:700;text-decoration:underline}.legend{font-size:.85rem}.voice-info{color:var(--muted);font-size:.85rem}textarea:disabled{opacity:.8}.practice-head{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.count{font-weight:700}.bar{width:100%;height:6px;accent-color:var(--accent);margin-bottom:16px}.mode{color:var(--fg);font-weight:700}.options{gap:8px;margin-top:16px;display:grid}.option{border:1px solid 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var(--border);margin-top:12px;padding-top:12px}.progress-en{margin:0 0 6px}.progress-en .badge{margin-left:8px;font-size:.75rem}.chips{flex-wrap:wrap;gap:6px;display:flex}.chip{border:1px solid var(--border);border-radius:999px;padding:2px 10px;font-size:.85rem}.chip-due{border-color:var(--accent);color:var(--accent);font-weight:700}.chip-locked,.chip-none{color:var(--muted)}.hint{color:var(--muted);margin:4px 0 0;font-size:.8rem}.test-tools{border-style:dashed}.test-tools h2{margin:0 0 8px;font-size:1rem}.note{color:var(--muted);font-size:.8rem}