@charset "UTF-8";
.leaf.full-question{display:block;padding:9px 8px 10px}.fill-question{margin:0;font-size:12px;line-height:2.35;color:#4d5362;white-space:pre-wrap;overflow-wrap:anywhere}.question-part{cursor:pointer}.full-question .inline-answer{display:inline-flex;vertical-align:baseline;max-width:none;margin:0 5px}.full-question .inline-answer input{flex:none}.full-question .choice-trigger{vertical-align:baseline}
:root{font-family:Inter,"Noto Sans TC","Microsoft JhengHei",system-ui,sans-serif;color:#323744;background:#fafbfc;font-synthesis:none;--ink:#323744;--muted:#9196a2;--border:#e4e6ed;--accent:#5966cd;--wrong:#b77922}*{box-sizing:border-box}html,body{width:100%;height:100%;margin:0;overflow:hidden}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{opacity:.45;cursor:wait}[hidden]{display:none!important}button{color:inherit}button,input,select,textarea{-webkit-tap-highlight-color:transparent}button:focus-visible,select:focus-visible{outline:2px solid #8d9be0;outline-offset:3px}input:focus-visible,textarea:focus-visible{outline:none;border-color:#8c99dc}button{touch-action:manipulation}#viewport{position:absolute;inset:0;overflow:hidden;touch-action:none;cursor:grab;background-image:radial-gradient(#dee1e9 .75px,transparent .75px);background-size:24px 24px;outline:none}#viewport.dragging{cursor:grabbing}#world{position:absolute;left:0;top:0;transform-origin:0 0;will-change:transform}#wires{position:absolute;inset:0;overflow:visible;pointer-events:none}#wires path{fill:none;stroke-width:1.7;stroke-linecap:round}.map-node{position:absolute;z-index:1;font-size:13px;--branch:#7385bd}.root{width:176px;min-height:58px;border:1.5px solid #828ab7;border-radius:12px;background:#fff;box-shadow:0 3px 10px #383e6e07;padding:16px 18px;display:flex;align-items:center;justify-content:center;text-align:center;line-height:1.65;font-size:17px;font-weight:600;cursor:default;overflow-wrap:anywhere}.branch-node{width:156px;min-height:46px;padding:11px 13px;background:#fff;border:1px solid color-mix(in srgb,var(--branch),white 64%);border-radius:8px;line-height:1.65;text-align:center;font-size:13px;font-weight:500;display:flex;align-items:center;justify-content:center;gap:7px}.branch-node:hover{background:color-mix(in srgb,var(--branch),white 95%)}.collapse-mark{color:var(--branch);font-size:10px;flex:none}.leaf{width:330px;border-bottom:1.7px solid var(--branch);background:#fafbfcEF;min-height:48px;padding:8px 5px 9px;display:flex;align-items:center;gap:9px;border-radius:5px 5px 0 0;cursor:default}.leaf:hover{background:#fff;box-shadow:0 0 0 1px #edf0f5}.node-label{background:none;border:0;padding:0;min-width:0;flex:1;text-align:left;line-height:1.65;font-size:12px;overflow-wrap:anywhere;color:#4d5362;cursor:pointer}.node-label:hover{color:#394eb2}.inline-answer{display:flex;align-items:center;gap:3px;flex:none;max-width:52%;margin:0}.inline-answer input{width:91px;min-width:0;border:0;border-bottom:1px solid #c7cddd;background:#fff;border-radius:3px 3px 0 0;padding:6px 4px;color:#424c77;font-size:12px;line-height:1.4;text-align:center;outline:none}.inline-answer input:focus{border-color:#687aca;background:#f0f3ff}.inline-answer input::placeholder{color:#b3b9c5}.check-answer{background:transparent;border:0;color:#98a2bc;padding:4px;font-size:13px;min-width:22px;min-height:27px;border-radius:4px}.check-answer:hover{background:#eff2fc;color:#5969b1}.leaf.correct{border-bottom-color:#6b9b86}.leaf.revealed{border-bottom-color:#c9a16b}.resolved-answer{font-size:12px;color:#4f826b;max-width:155px;overflow-wrap:anywhere;font-weight:500;line-height:1.55;text-align:right}.revealed .resolved-answer{color:#a57b42}.choice-trigger{border:1px solid #ebdbc2;border-radius:5px;color:#a57b42;background:#fffaf1;font-size:11px;padding:6px 9px;white-space:nowrap}.mistake-mark{position:absolute;top:-10px;right:5px;color:#a77935;font-size:9px;background:#fafbfc;padding:1px 4px;line-height:1.5;border-radius:3px;font-weight:400}.resolved-answer .correct-tick{color:#8cac9b;margin-left:5px}.floating{background:#fff;border:1px solid #e5e7ed;box-shadow:0 3px 12px #20263d08;border-radius:9px}.map-controls{position:absolute;top:18px;left:18px;display:flex;align-items:center;padding:4px;gap:3px;max-width:calc(100% - 190px);z-index:5}.map-controls select{border:0;background:transparent;font-size:12px;color:#555c6c;padding:8px 27px 8px 10px;min-width:110px;max-width:260px;text-overflow:ellipsis;cursor:pointer}.icon-button{background:transparent;border:0;display:grid;place-items:center;min-width:32px;min-height:32px;border-radius:5px;font-size:18px;line-height:1;color:#808797;padding:5px}.icon-button:hover{background:#f2f4f8;color:#414c66}.menu{position:absolute;left:0;top:calc(100% + 7px);padding:5px;min-width:160px;display:flex;flex-direction:column;gap:2px}.menu button{border:0;background:transparent;text-align:left;padding:10px 13px;font-size:12px;border-radius:5px}.menu button:hover{background:#f4f5f8}.menu .danger{color:#b46e65}.practice-controls{position:absolute;top:18px;right:18px;display:flex;align-items:center;padding:7px 8px;gap:10px;min-height:43px;font-size:11px;z-index:4;color:#9298a4}.practice-controls button{border:0;background:transparent;padding:6px;border-radius:5px;font-size:11px;color:#9399a6}.practice-controls button[aria-pressed=true]{background:#fcf1df;color:#a0783d}.practice-controls #wrong-count{margin-left:3px;font-variant-numeric:tabular-nums;color:#ae8548}.divider{height:17px;width:1px;background:#e9ebf0;display:block}.zoom-controls{position:absolute;right:18px;bottom:18px;display:flex;align-items:center;gap:2px;padding:4px;z-index:4}.zoom-controls #zoom-reset{border:0;background:transparent;font-size:11px;min-width:49px;color:#858c9a;height:32px}.zoom-controls .divider{margin:0 5px}.toast{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);z-index:20;padding:11px 18px;font-size:12px;color:#767f95;max-width:calc(100% - 40px);line-height:1.7}.toast.error-toast{color:#ac635b}.empty-filter{position:absolute;left:0;top:0;font-size:12px;color:#a4a9b3;white-space:nowrap}dialog{border:1px solid var(--border);border-radius:13px;padding:24px;background:#fff;color:var(--ink);box-shadow:0 18px 90px #222c4620;width:460px;max-width:calc(100vw - 32px);max-height:calc(100dvh - 44px);overflow:auto}dialog::backdrop{background:#26304425;backdrop-filter:blur(2px)}.dialog-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:19px}.dialog-heading h1,.dialog-heading h2{font-size:16px;font-weight:600;margin:0;line-height:1.6}.dialog-heading .icon-button{font-size:23px;margin:-7px -8px -7px 0}.drop-zone{display:flex;flex-direction:column;gap:9px;align-items:center;justify-content:center;padding:26px 15px;background:#fbfcfe;border:1px dashed #ccd2e0;border-radius:8px;cursor:pointer;position:relative}.drop-zone strong{font-size:13px;font-weight:500;color:#66718b}.drop-zone span{font-size:11px;color:#929bac}.drop-zone small{font-size:10px;color:#adb4c1}.drop-zone input{position:absolute;opacity:0;width:1px;height:1px}.drop-zone:hover,.drop-zone.dragover{background:#f1f4fd;border-color:#8697d7}.drop-zone:focus-within{outline:2px solid #8c9bd9}.file-item{display:flex;align-items:center;gap:10px;padding:8px 9px;font-size:11px;background:#f6f7fa;margin-top:6px;border-radius:5px;overflow-wrap:anywhere}.file-item span{flex:1}.file-item button{border:0;background:none;color:#9aa3b3;padding:2px 5px}.paste-option{margin:16px 0;font-size:11px;color:#7e8798}.paste-option summary{cursor:pointer;display:list-item}.paste-option textarea{margin-top:10px}.field-label{display:block;font-size:12px;margin:20px 0 9px;color:#667084}.field-label span{font-size:10px;color:#a9afbb;margin-left:7px}textarea{resize:vertical;min-height:75px;width:100%;border:1px solid #dfe3ec;border-radius:7px;padding:11px 12px;font-size:12px;line-height:1.8;color:#4d586c;background:#fff}textarea::placeholder{color:#a9b0bf;font-size:11px}.input-limits{font-size:10px;line-height:1.8;color:#a1a8b5;margin:12px 0 0}.dialog-actions{display:flex;justify-content:flex-end;align-items:center;gap:10px;margin-top:21px}.button{min-height:36px;border:1px solid var(--border);padding:9px 16px;background:#fff;border-radius:6px;font-size:12px}.button:hover{background:#f6f7fb}.primary{background:#5d6bd0;border-color:#5d6bd0;color:#fff;min-width:78px}.primary:hover{background:#4e5dbb}.dialog-actions #generation-status{font-size:11px;line-height:1.5;color:#969eaf;margin-right:auto}.error{font-size:11px;line-height:1.8;color:#b2695c;margin:12px 0 0}#node-prompt{font-size:14px;line-height:1.9;white-space:pre-wrap;overflow-wrap:anywhere;color:#626c81;margin:6px 0 20px}.question-blank{display:inline-block;min-width:44px;border-bottom:1.5px solid #9ca8cb;margin:0 4px}.dialog-answer-form{display:flex;gap:8px}.dialog-answer-form input{min-width:0;flex:1;border:1px solid var(--border);border-radius:6px;padding:10px;font-size:14px;color:#4e5973}.options{display:grid;grid-template-columns:1fr 1fr;gap:9px}.option{border:1px solid #e0e4ed;background:#fff;padding:12px;text-align:left;border-radius:7px;font-size:12px;line-height:1.7;color:#677187}.option:hover{background:#f4f6fe;border-color:#a6b2d6}.option-letter{font-size:10px;color:#a3acc0;margin-right:8px}.answer-state{font-size:12px;color:#a48b68;margin:0 0 12px}.solution{font-size:16px;color:#577b6c;margin:0 0 12px;line-height:1.8}.solution.revealed{color:#a37e4a}#node-evidence{font-size:11px;color:#8c95a7;line-height:1.9;margin-top:18px;padding-top:15px;border-top:1px solid #eceef4}#node-evidence p{margin:0 0 10px}#node-evidence blockquote{margin:0 0 7px;border-left:2px solid #d9dfed;padding-left:10px}#node-evidence cite{font-size:10px;font-style:normal;color:#abb2bf}#mistake-history{font-size:11px;color:#9ba2b0;margin-top:17px}#mistake-history summary{cursor:pointer}#history-items{padding-left:19px;font-size:11px;line-height:1.9;max-height:180px;overflow:auto}#history-items li{padding:5px 0;overflow-wrap:anywhere}#history-items .was-wrong{color:#b08a57}#history-items time{font-size:9px;color:#b1b7c2;display:block}#confirm-dialog h2{font-size:16px;margin:0 0 12px}#confirm-dialog p{color:#929aaa;font-size:12px;line-height:1.8}
@media(max-width:600px){.map-controls{left:10px;top:10px;max-width:calc(100% - 20px)}.map-controls select{max-width:calc(100vw - 108px);font-size:11px}.practice-controls{top:auto;bottom:15px;left:10px;right:auto;gap:5px;font-size:10px;padding:5px;min-height:38px}.practice-controls button{font-size:10px;padding:5px}.zoom-controls{right:10px;bottom:15px;padding:3px;gap:0}.zoom-controls .icon-button{min-width:29px;min-height:30px}.zoom-controls #zoom-reset{min-width:40px;font-size:10px}.zoom-controls .divider{margin:0 2px}.toast{bottom:67px;font-size:11px;max-width:calc(100% - 25px);padding:9px 12px}.leaf{width:310px;min-height:52px}.node-label{font-size:12px}.inline-answer input{font-size:16px;width:93px;padding:5px 3px}.inline-answer{max-width:47%}.root{font-size:15px}dialog{padding:21px;max-height:calc(100dvh - 26px)}.dialog-heading{margin-bottom:17px}textarea{font-size:16px}textarea::placeholder{font-size:11px}.dialog-answer-form input{font-size:16px}.field-label{margin-top:17px}.options .option{font-size:13px;min-height:48px}.dialog-heading .icon-button{min-height:38px;min-width:38px}#node-prompt{font-size:14px}.drop-zone{padding:22px 12px}}