:root{color-scheme:light;--bg:#f6f7f5;--ink:#17251e;--green:#175d42;--muted:#58655c;--line:#d2dbd3;--answer-size:18px;font-family:system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-size:16px}button,input,select{font:inherit}button{cursor:pointer;color:inherit;border:0}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #38795b;outline-offset:2px}[hidden]{display:none!important}a{color:var(--green)}.shell{max-width:960px;margin:auto;padding:0 20px}.brand{display:flex;align-items:center;gap:14px;height:64px}.brand strong{font-size:22px}.brand #offlineStatus{font-size:13px;color:var(--muted);margin-left:auto}.text-btn{background:transparent;color:var(--muted);padding:9px 3px;font-size:15px;white-space:nowrap;text-decoration:underline;text-underline-offset:3px}.text-btn:hover{color:var(--green)}.search-panel{position:sticky;top:0;z-index:5;background:var(--bg);padding-top:8px}.search-line{display:flex;align-items:center;gap:8px;background:white;border:2px solid #6d927b;border-radius:7px;padding:4px 5px 4px 12px;min-height:56px}.search-line:focus-within{border-color:var(--green)}.search-icon{display:none}#query{min-width:0;flex:1;border:0;outline:0;background:transparent;font-size:18px;height:40px;color:var(--ink)}#query::placeholder{color:#69746b}#query::-webkit-search-cancel-button{display:none}.clear-btn{font-size:26px;color:var(--muted);background:transparent;min-width:32px;padding:0 3px}.search-btn{background:var(--green);color:white;padding:10px 14px;min-height:44px;border-radius:4px;white-space:nowrap}.filter-line{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 0;border-bottom:1px solid var(--line)}.subjects{display:flex;gap:4px;flex-wrap:wrap}.chip{background:transparent;color:#34463a;padding:10px 12px;font-size:15px;border-radius:4px;white-space:nowrap}.chip.selected{background:#dcece0;color:#11452e;font-weight:700}.settings{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding:12px 0;border-bottom:1px solid var(--line);font-size:15px}.settings label{display:flex;gap:5px;align-items:center}.settings input{width:18px;height:18px;accent-color:var(--green)}.settings select{border:1px solid #9dad9f;border-radius:3px;background:white;padding:7px;max-width:140px}.size-btn{border:1px solid #9dad9f;background:white;padding:8px 12px;border-radius:4px}.result-bar{font-size:14px;color:var(--muted);padding:12px 0;line-height:1.5}#timing{display:none}.welcome{padding:12px 0;color:#536158;line-height:1.7}.welcome p{margin:8px 0}.welcome .text-btn{font-size:14px}.question{border:1px solid var(--line);background:white;border-radius:7px;margin:0 0 12px;padding:16px;overflow-wrap:anywhere}.question-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;color:var(--muted);font-size:14px;margin-bottom:8px}.subject-label{color:var(--green)}.variant-btn{background:transparent;color:#46624e;text-decoration:underline;font-size:13px;padding:3px 0;margin-left:auto}.question h2{font-size:var(--answer-size);font-weight:600;line-height:1.6;margin:0 0 12px;white-space:pre-wrap}.answer{background:#edf5ec;border-left:4px solid #31704c;padding:10px 12px;color:#163e26;border-radius:0 4px 4px 0;font-size:var(--answer-size);line-height:1.6}.answer-heading{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:6px;font-size:15px}.answer-keys{font-size:22px;font-weight:750;letter-spacing:1px}.basis{font-size:12px;color:#486450}.answer-item{display:flex;gap:7px;margin:3px 0;align-items:baseline}.option-key{min-width:20px;font-weight:650;flex:none}.option-text{white-space:pre-wrap}.original-answer{font-size:14px;color:#78521c;margin:8px 0}.review-reason,.source{font-size:14px;line-height:1.7;color:var(--muted)}.review-reason p{margin:8px 0}.review-reason summary,.source summary,.options summary{cursor:pointer;padding:7px 0;font-size:14px;color:var(--muted)}.references{font-size:13px;line-height:1.8}.conflict-btn{background:transparent;color:#80541a;padding:8px 0;font-size:14px;text-decoration:underline}.options{margin-top:7px}.options-list{display:grid;gap:4px;margin-top:3px}.option{display:flex;gap:8px;align-items:baseline;padding:6px 8px;line-height:1.6;font-size:var(--answer-size);border-radius:3px}.option.correct{background:#f0f6ef;color:#1c4d30}.option.correct .option-key:after{content:" ✓";font-size:11px}.card-actions{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;margin-top:8px;border-top:1px solid #e6ebe5}.source{min-width:0}.source-content{font-size:13px;overflow-wrap:anywhere}.source-content p{margin:6px 0}.copy-btn{background:transparent;color:var(--muted);font-size:14px;padding:9px 0;flex:none}.explanation{white-space:pre-wrap;font-size:15px;line-height:1.7}mark{background:#fae9ac;color:inherit}.fuzzy{color:#8b5416}.empty{padding:20px 12px;text-align:center;line-height:1.8}.empty h2{font-size:18px}.empty p{font-size:15px}.sample{color:var(--green);background:transparent;padding:10px}.more-btn{display:block;margin:20px auto;background:#e2eee2;color:var(--green);border:1px solid #9fb3a3;border-radius:5px;padding:12px 24px;font-size:16px}footer{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;border-top:1px solid var(--line);margin-top:26px;padding:14px 0;color:var(--muted);font-size:12px}footer>div{display:flex;gap:20px}footer .text-btn{font-size:14px}.compact .question{padding:9px 11px;margin-bottom:8px}.compact .question h2{line-height:1.5;margin-bottom:7px}.compact .answer{padding:6px 8px}.compact .question-meta{font-size:12px;gap:7px;margin-bottom:5px}.compact .answer-heading{margin-bottom:2px}.compact .card-actions{margin-top:5px}dialog{width:min(690px,calc(100% - 16px));max-height:88dvh;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink);padding:18px}dialog::backdrop{background:#15281e60}.dialog-head{display:flex;justify-content:space-between;align-items:center;gap:10px;position:sticky;top:-18px;background:var(--bg);padding:8px 0;z-index:1}.dialog-head h2{font-size:20px;margin:0}#dialogBody{font-size:16px;line-height:1.8;overflow-wrap:anywhere}#dialogBody h3{font-size:16px}.review-entry{border-top:1px solid var(--line);padding:10px 0}.download-link{display:block;margin:12px 0;padding:14px;background:#e5eee4;border:1px solid #b9c9b8;border-radius:5px;font-weight:600;text-decoration:none}.download-link small{display:block;font-size:13px;font-weight:400;color:var(--muted)}#toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:#243c2c;color:white;padding:10px 16px;z-index:30;font-size:14px;max-width:90%;border-radius:5px;text-align:center}@media(max-width:500px){.shell{padding:0 10px}.brand{height:52px}.brand strong{font-size:20px}.brand #offlineStatus{font-size:12px}.chip{font-size:14px;padding:9px 8px}.subjects{gap:1px}.filter-line{gap:4px}.filter-line>.text-btn{font-size:14px}.search-line{padding-left:8px}.search-btn{padding:9px 11px}.question{padding:12px}.variant-btn{margin-left:0}.settings{gap:12px}.question-meta{font-size:13px}.answer{padding:8px}.answer-keys{font-size:21px}.basis{font-size:12px}.option{padding:4px}footer>div{gap:16px}}@media(max-width:300px),(max-height:360px){.brand,footer{display:none!important}.shell{padding:0 5px}.search-panel{padding-top:4px}.search-line{min-height:36px;padding:1px 3px 1px 6px;border-width:1px;gap:3px}#query{font-size:14px;height:34px}.search-btn{font-size:13px;padding:7px;min-height:32px}.clear-btn{font-size:21px;min-width:22px}.filter-line{padding:3px 0;flex-wrap:wrap;gap:0}.subjects{gap:0}.chip{font-size:12px;padding:5px 6px}.filter-line>.text-btn{font-size:12px;padding:4px 0;margin-left:auto}.result-bar{font-size:12px;padding:7px 0}.question{padding:8px;border-radius:4px;margin-bottom:8px}.question h2{line-height:1.45;margin-bottom:7px}.question-meta{font-size:11px;gap:5px;margin-bottom:5px}.variant-btn{font-size:11px}.answer{padding:5px 7px;border-left-width:3px;line-height:1.45}.answer-heading{font-size:12px;gap:6px;margin-bottom:3px}.answer-keys{font-size:19px}.basis{font-size:11px}.option-key{min-width:17px}.option{padding:3px;gap:5px;line-height:1.45}.answer-item{gap:4px}.source summary,.options summary,.review-reason summary,.copy-btn,.original-answer{font-size:12px}.source-content,.references{font-size:12px}.settings{font-size:13px;max-height:120px;overflow:auto;gap:7px}.settings select{padding:3px}.size-btn{padding:5px 8px}.conflict-btn{font-size:12px}.welcome{font-size:14px}.dialog-head h2{font-size:16px}dialog{padding:10px}.dialog-head{top:-10px}#dialogBody{font-size:14px}}

@media(max-width:240px),(max-height:220px){.filter-line .subjects{display:none}.filter-line{justify-content:flex-end;padding:0;border:0;height:21px}.filter-line>.text-btn{font-size:11px;padding:2px 0}.result-bar{padding:3px 0;font-size:11px}.settings{max-height:74px}.question-meta{font-size:10px}.question{padding:6px}.answer-keys{font-size:17px}.basis{display:block;width:100%}}