.PracticeGrid-module___NvG-G__panel{border-radius:var(--radius-l);border:1px solid var(--line);background:var(--paper-raised);box-shadow:var(--shadow-m);margin:0 0 30px;overflow:hidden}.PracticeGrid-module___NvG-G__head{background:linear-gradient(180deg, var(--brand-tint), transparent);border-bottom:1px solid var(--line);align-items:flex-start;gap:12px;padding:16px 20px;display:flex}.PracticeGrid-module___NvG-G__headIcon{background:var(--brand);color:#fff;border-radius:9px;flex:none;place-items:center;width:30px;height:30px;font-size:.9rem;display:grid}.PracticeGrid-module___NvG-G__headText{flex:1;min-width:0}.PracticeGrid-module___NvG-G__label{letter-spacing:.14em;color:var(--brand-deep);font-size:.71rem;font-weight:800}.PracticeGrid-module___NvG-G__prompt{margin:2px 0 0;font-weight:700;line-height:1.6}.PracticeGrid-module___NvG-G__body{padding:18px 20px 20px}.PracticeGrid-module___NvG-G__sheetScroll{border-radius:var(--radius-s);border:1px solid var(--line-strong);background:var(--paper);-webkit-overflow-scrolling:touch;overflow-x:auto}.PracticeGrid-module___NvG-G__sheet{border-collapse:collapse;font-variant-numeric:tabular-nums;white-space:nowrap;min-width:100%;font-size:.88rem}.PracticeGrid-module___NvG-G__sheet th,.PracticeGrid-module___NvG-G__sheet td{border:1px solid var(--line);text-align:left;vertical-align:middle;height:32px;padding:0}.PracticeGrid-module___NvG-G__gutter{z-index:2;background:var(--paper-sunk);width:34px;min-width:34px;color:var(--ink-faint);-webkit-user-select:none;user-select:none;font-size:.74rem;font-weight:600;position:sticky;left:0;text-align:center!important}.PracticeGrid-module___NvG-G__colHead{background:var(--paper-sunk);color:var(--ink-faint);-webkit-user-select:none;user-select:none;min-width:88px;font-size:.74rem;font-weight:600;text-align:center!important}.PracticeGrid-module___NvG-G__cell{text-overflow:ellipsis;min-width:88px;max-width:200px;overflow:hidden;padding:0 9px!important}.PracticeGrid-module___NvG-G__cellNumber{text-align:right!important}.PracticeGrid-module___NvG-G__cellHeaderish{background:color-mix(in srgb, var(--paper-sunk) 60%, var(--paper));font-weight:700}.PracticeGrid-module___NvG-G__answerCell{background:color-mix(in srgb, var(--brand-tint) 70%, var(--paper));box-shadow:inset 0 0 0 2px var(--brand);cursor:text;position:relative;padding:0!important}.PracticeGrid-module___NvG-G__answerCell.PracticeGrid-module___NvG-G__correct{background:var(--ok-tint);box-shadow:inset 0 0 0 2px var(--ok)}.PracticeGrid-module___NvG-G__answerCell.PracticeGrid-module___NvG-G__wrong{background:var(--ng-tint);box-shadow:inset 0 0 0 2px var(--ng)}.PracticeGrid-module___NvG-G__answerValue{padding:0 9px;font-weight:600;line-height:32px;display:block}.PracticeGrid-module___NvG-G__answerPlaceholder{color:var(--ink-faint);font-weight:400}.PracticeGrid-module___NvG-G__formulaBar{border-radius:var(--radius-s);border:1px solid var(--line-strong);background:var(--paper);align-items:stretch;gap:0;margin-top:14px;transition:border-color .15s,box-shadow .15s;display:flex;overflow:hidden}.PracticeGrid-module___NvG-G__formulaBar:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px color-mix(in srgb, var(--brand) 22%, transparent)}.PracticeGrid-module___NvG-G__formulaTag{background:var(--paper-sunk);border-right:1px solid var(--line);color:var(--ink-soft);-webkit-user-select:none;user-select:none;flex:none;place-items:center;padding-inline:12px;font-size:.8rem;font-weight:700;display:grid}.PracticeGrid-module___NvG-G__formulaInput{min-width:0;color:var(--ink);font-family:var(--font-mono);background:0 0;border:none;outline:none;flex:1;padding:12px 14px;font-size:1rem}.PracticeGrid-module___NvG-G__formulaInput::placeholder{color:var(--ink-faint);font-family:var(--font-ui)}.PracticeGrid-module___NvG-G__actions{flex-wrap:wrap;gap:10px;margin-top:14px;display:flex}.PracticeGrid-module___NvG-G__btn{appearance:none;border-radius:var(--radius-s);border:1px solid #0000;padding:11px 22px;font-family:inherit;font-size:.95rem;font-weight:700;transition:transform .12s,box-shadow .15s,background .15s}.PracticeGrid-module___NvG-G__btn:active{transform:translateY(1px)}.PracticeGrid-module___NvG-G__btnPrimary{background:var(--brand);color:#fff;box-shadow:var(--shadow-s)}.PracticeGrid-module___NvG-G__btnPrimary:hover{background:var(--brand-deep);box-shadow:var(--shadow-m)}.PracticeGrid-module___NvG-G__btnGhost{border-color:var(--line-strong);color:var(--ink-soft);background:0 0}.PracticeGrid-module___NvG-G__btnGhost:hover{background:var(--paper-sunk);color:var(--ink)}.PracticeGrid-module___NvG-G__result{border-radius:var(--radius-m);border:1px solid var(--line);margin-top:16px;padding:16px 18px;animation:.26s both PracticeGrid-module___NvG-G__rise}@keyframes PracticeGrid-module___NvG-G__rise{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}.PracticeGrid-module___NvG-G__resultOk{background:var(--ok-tint);border-color:color-mix(in srgb, var(--ok) 36%, var(--line))}.PracticeGrid-module___NvG-G__resultNg{background:var(--ng-tint);border-color:color-mix(in srgb, var(--ng) 36%, var(--line))}.PracticeGrid-module___NvG-G__resultWarn{background:var(--warn-tint);border-color:color-mix(in srgb, var(--warn) 40%, var(--line))}.PracticeGrid-module___NvG-G__resultHead{align-items:center;gap:9px;margin-bottom:6px;font-weight:800;display:flex}.PracticeGrid-module___NvG-G__resultIcon{color:#fff;border-radius:50%;flex:none;place-items:center;width:22px;height:22px;font-size:.78rem;display:grid}.PracticeGrid-module___NvG-G__resultOk .PracticeGrid-module___NvG-G__resultIcon{background:var(--ok)}.PracticeGrid-module___NvG-G__resultNg .PracticeGrid-module___NvG-G__resultIcon{background:var(--ng)}.PracticeGrid-module___NvG-G__resultWarn .PracticeGrid-module___NvG-G__resultIcon{background:var(--warn)}.PracticeGrid-module___NvG-G__resultDetail{margin:0;font-size:.94rem;line-height:1.75}.PracticeGrid-module___NvG-G__compare{color:var(--ink-soft);flex-wrap:wrap;gap:8px 20px;margin-top:10px;font-size:.86rem;display:flex}.PracticeGrid-module___NvG-G__compare code{font-weight:700}.PracticeGrid-module___NvG-G__alts{border-top:1px dashed var(--line-strong);margin-top:14px;padding-top:12px}.PracticeGrid-module___NvG-G__alts summary{color:var(--brand);font-size:.92rem;font-weight:700;list-style:none}.PracticeGrid-module___NvG-G__alts summary::-webkit-details-marker{display:none}.PracticeGrid-module___NvG-G__alts summary:before{content:"＋ ";font-weight:800}.PracticeGrid-module___NvG-G__alts[open] summary:before{content:"− "}.PracticeGrid-module___NvG-G__altList{margin:10px 0 0;padding-left:20px;font-size:.92rem}.PracticeGrid-module___NvG-G__altList li{margin-bottom:5px}.PracticeGrid-module___NvG-G__placeholder{min-height:210px;color:var(--ink-faint);text-align:center;place-items:center;gap:10px;padding:26px;font-size:.92rem;display:grid}.PracticeGrid-module___NvG-G__spinner{border:2.5px solid var(--line-strong);border-top-color:var(--brand);border-radius:50%;width:22px;height:22px;animation:.75s linear infinite PracticeGrid-module___NvG-G__spin}@keyframes PracticeGrid-module___NvG-G__spin{to{transform:rotate(360deg)}}@media (max-width:560px){.PracticeGrid-module___NvG-G__head{padding:14px 15px}.PracticeGrid-module___NvG-G__body{padding:15px 15px 17px}.PracticeGrid-module___NvG-G__btn{text-align:center;flex:1;min-width:130px}}