.readable-content{font-size:16px;line-height:1.95;overflow-wrap:anywhere;color:#26382e}.readable-content .katex{font-size:1.08em}.readable-content .katex-display{overflow-x:auto;overflow-y:hidden;padding:9px 3px;margin:12px 0}.question-figure{margin:22px auto;text-align:center;max-width:100%}.question-figure img{max-width:100%;max-height:510px;width:auto;height:auto;object-fit:contain;background:white}.question-figure figcaption{font-size:11px;color:#7a857d;margin-top:8px}.readable-table-wrap{overflow-x:auto;margin:16px 0}.readable-table{border:1px solid #dce3d5;min-width:350px;font-size:14px}.readable-table td{vertical-align:top;padding:10px 13px;border:1px solid #e4e8dd}.exercise-part{font-size:18px;color:#426954;border-bottom:1px solid #dfe5d5;padding-bottom:10px;margin:28px 0 8px}.readable-list{padding-left:25px}.readable-list li{padding:5px 0}.readable-options{display:grid;gap:8px;margin:15px 0}.readable-option{padding:5px 0}.answer-blank{display:inline-block;border-bottom:1px solid #87967d;min-width:60px;line-height:1}.source-code{white-space:pre-wrap;background:#f4f6ef;padding:16px;border-radius:8px;font:14px/1.7 ui-monospace,monospace}.content-label{display:inline-block;font-weight:600;color:#526a48;margin:8px 5px}.language-label{font-size:12px;font-weight:600;color:#718064;margin-top:22px}.source-notice{font-size:12px;color:#7a857d}.vocabulary-entry{border-bottom:1px solid #e5e9df;padding:15px 0}.catalog-excerpt{line-height:1.8}.catalog-excerpt .katex{font-size:1em}.practice-excerpt{max-height:100px;overflow:hidden;line-height:1.85;margin:13px 0}.practice-excerpt .question-figure,.practice-excerpt table{display:none}.practice-excerpt .katex{font-size:1em}.readable-block{margin:6px 0}.math-fallback{font-family:serif;font-style:italic}
.assessment-panel{margin:24px 0;padding:20px;background:#f3f7f5;border:1px solid #c9dad1;border-radius:12px}.assessment-panel fieldset,.readable-list fieldset{border:1px solid #d5ddd7;border-radius:8px;margin:14px 0;padding:12px}.answer-options{display:flex;gap:12px;flex-wrap:wrap}.answer-options label{display:flex;align-items:center;gap:6px;padding:10px 16px;border:1px solid #b9cbc0;border-radius:8px;cursor:pointer}.answer-options label:has(input:checked){background:#d5e9de;border-color:#246650}.answer-options input{width:auto!important;margin:0}.answer-result{margin-top:8px;white-space:pre-wrap}.answer-result.correct{color:#176140}.answer-result.incorrect{color:#a52a2a}#assessmentSummary{margin-top:18px;font-weight:bold}#assessmentPanel textarea,#teacherComment,.readable-list fieldset input[type=text]{width:100%}#loginForm label,#sharedStudentForm label{display:block;margin:14px 0}
.focused-question{max-width:900px;margin:28px auto}.focused-question h1{font-size:25px;line-height:1.6;margin:18px 0 24px}.focused-toolbar,.focused-actions{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.focused-toolbar{margin:16px 0}.focused-material{margin:24px 0;min-height:100px}.focused-stem{font-size:20px;line-height:1.8;margin:20px 0}.focused-question fieldset{border:0;padding:0;margin:24px 0}.focused-question input:not([type=radio]):not([type=checkbox]),.focused-question textarea{width:100%;font-size:18px}.focused-actions{border-top:1px solid var(--line);padding-top:24px;margin-top:24px}.focused-auto{display:flex;align-items:center;gap:8px;font-size:14px;margin-top:20px}.focused-auto input{width:auto}.focused-solution{margin-top:24px}.focused-match-options{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:0 18px}.focused-material .question-figure img{max-height:400px}.focused-question .feedback{margin:20px 0}
.knowledge-flow{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;margin:26px 0}.knowledge-stage{position:relative;margin:0!important}.knowledge-stage h2{margin:16px 0}.knowledge-node-list{display:grid;gap:12px}.knowledge-node{display:flex;flex-direction:column;gap:10px;text-align:left;width:100%;padding:16px!important;white-space:normal}.knowledge-node small{font-weight:normal;color:var(--muted)}.knowledge-node.active{background:#e4eee5;border-color:#537b60}.knowledge-arrow{position:absolute;right:-22px;top:50%;font-size:24px;color:#537b60;z-index:1}.knowledge-detail h2{margin-top:16px}@media(max-width:850px){.knowledge-flow{grid-template-columns:1fr}.knowledge-arrow{right:50%;top:auto;bottom:-26px;transform:rotate(90deg)}}
.related-practice-panel{background:#f6f7ef;border:1px solid #d9dfc9;border-radius:12px;padding:20px;margin:24px 0}.related-practice-panel .row{gap:16px;flex-wrap:wrap}.related-practice-panel h3{font-size:16px;line-height:1.6}

.chinese-note{margin:16px 0;padding:12px 16px;border-left:3px solid #c9b67a;background:#faf8ef;font-size:.92em;color:#596169}.chinese-note summary{cursor:pointer;font-weight:600}.chinese-note[open]>div{margin-top:12px;line-height:1.8}

.vocabulary-heading{margin:8px 0 24px}.vocabulary-heading h1{margin:0}.vocabulary-days{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:14px;margin:24px 0}.vocabulary-day{min-height:82px;background:var(--card,#fff);border:1px solid var(--line,#dce3df);border-radius:14px;font-size:18px;font-weight:600;transition:background .15s,border-color .15s}.vocabulary-day:hover,.vocabulary-day:focus-visible{background:#edf5f0;border-color:#527d68}@media(max-width:900px){.vocabulary-days{grid-template-columns:repeat(4,minmax(0,1fr))}}@media(max-width:540px){.vocabulary-days{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.vocabulary-day{min-height:66px}}

.learning-progress{margin:20px 0 26px}.learning-progress-label{display:flex;justify-content:space-between;gap:12px;margin-bottom:9px}.learning-progress progress{display:block;width:100%;height:10px;accent-color:#35745b}.vocabulary-day .day-status{display:block;font-size:12px;margin-top:8px;font-weight:500}.vocabulary-day.day-started{background:#fff4dc;border-color:#d6b460;color:#77551b}.vocabulary-day.day-complete{background:#e5f3eb;border-color:#70a689;color:#235f42}

.subject-config-options{display:flex;flex-wrap:wrap;gap:12px 20px}.subject-config-options label{display:flex;align-items:center;gap:6px}.subject-config-options input{width:auto!important}.question-clock{font-variant-numeric:tabular-nums;padding:7px 12px;border-radius:20px;background:#eef3f1;color:#345c4c;font-weight:600}

.quest-console{background:linear-gradient(125deg,#172e39,#183f42);color:#eaf3ed;border-radius:20px;padding:24px 28px;box-shadow:0 10px 24px #163d3512}.quest-top{display:flex;justify-content:space-between;align-items:center;gap:16px}.quest-eyebrow{font-size:10px;letter-spacing:2px;color:#a8c8be}.quest-top h2{font-size:24px;margin:8px 0 0;color:#f0f7ee}.quest-level{border:1px solid #b5d47377;background:#c3e57512;color:#dcf5a3;border-radius:14px;padding:10px 16px;font-size:22px;font-weight:700;white-space:nowrap}.quest-metrics{display:flex;gap:30px;margin:22px 0;color:#a8c8be;font-size:12px}.quest-metrics b{color:#ecf6e5;font-size:22px;margin-right:4px;font-variant-numeric:tabular-nums}.quest-console progress{accent-color:#cce991;border-radius:12px;overflow:hidden;background:#ffffff18}.quest-console progress::-webkit-progress-bar{background:#ffffff18}.quest-console progress::-webkit-progress-value{background:#cce991}.quest-footer{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:12px;margin-top:14px;color:#c3d7d0}.quest-footer button{background:transparent;border:0;color:#ddf2ac;padding:6px 0}.quest-console small{display:block;font-size:11px;color:#9fbbb2;margin-top:10px}.vocabulary-day{position:relative;overflow:hidden;box-shadow:0 3px 0 #143e3110}.vocabulary-day:hover{transform:translateY(-2px);box-shadow:0 5px 0 #143e3118}.vocabulary-day.day-complete:before{content:'★';position:absolute;right:10px;top:7px;font-size:13px;color:#3e8862}.knowledge-followup-note{padding:12px 16px;background:#eef5ec;border-radius:10px;color:#3c6548}@media(max-width:540px){.quest-console{padding:20px}.quest-metrics{gap:16px}.quest-top h2{font-size:21px}.quest-metrics b{font-size:19px}}

.cloze-passage{font-size:17px;line-height:1.95;padding:20px 24px;background:#f6f8f5;border-radius:14px;margin:22px 0}.cloze-passage strong{background:#e7eedc;border-radius:4px;padding:0 3px}.cloze-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.cloze-options fieldset{border:1px solid var(--line,#dae1dc);border-radius:12px;padding:14px 18px}.cloze-options legend{font-weight:700;padding:0 6px}.cloze-options label{display:flex;align-items:center;gap:8px;padding:8px 0;cursor:pointer}.cloze-options input{width:auto!important;flex:none}.cloze-explanation{border-bottom:1px solid var(--line,#dae1dc);padding:16px 0}.cloze-question #focusedSubmit{margin-top:20px}@media(max-width:650px){.cloze-options{grid-template-columns:1fr}.cloze-passage{padding:16px;font-size:16px}}

/* Compact one-row-per-blank cloze answer sheet. */
.cloze-options{display:block;margin:20px 0}.cloze-options .cloze-option-row{display:grid;grid-template-columns:46px minmax(0,1fr);align-items:center;gap:8px;margin:0;padding:7px 10px;border:0;border-bottom:1px solid var(--line,#dae1dc);border-radius:0;min-width:0}.cloze-option-row:nth-child(even){background:#f6f8f5}.cloze-sr-only{position:absolute!important;width:1px;height:1px;padding:0!important;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.cloze-blank-number{font-size:14px;font-weight:700;color:#365b49;font-variant-numeric:tabular-nums}.cloze-choice-cells{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}.cloze-options .cloze-choice-cells label{padding:5px 6px;margin:0;border-radius:7px;font-size:14px;line-height:1.45;gap:5px;min-width:0;overflow-wrap:anywhere}.cloze-choice-cells label:hover{background:#e6eedf}.cloze-choice-cells label:has(input:checked){background:#e2eed9;color:#294e32}.cloze-options .cloze-choice-cells input{margin:0}.cloze-question .cloze-passage{font-size:16px;line-height:1.8;padding:18px 20px}@media(max-width:650px){.cloze-choice-cells{grid-template-columns:repeat(2,minmax(0,1fr))}.cloze-options .cloze-option-row{grid-template-columns:30px minmax(0,1fr);gap:4px;padding:7px 4px}}
/* Keep complete questions intact; compact only their answer controls. */
.focused-question .answer-options{gap:8px}.focused-question .answer-options label{padding:7px 14px;min-height:36px}.focused-question .readable-options{gap:4px;margin:12px 0}.focused-question .readable-option{padding:2px 0}#studentConfigForm input[type=checkbox],#sharedStudentForm input[type=checkbox]{width:auto!important}.cloze-choice-cells label:focus-within{outline:2px solid #527d68;outline-offset:1px}

.cloze-choice-cells .cloze-text-answer{grid-column:1/-1;width:100%;max-width:420px;padding:7px 10px;border:1px solid #c8d6cd;border-radius:7px;font-size:15px;box-sizing:border-box}

.word-formation-root{display:inline!important;white-space:nowrap;font-size:.9em;font-weight:600;color:#49685a}.word-formation-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 16px}.cloze-options.word-formation-options .cloze-option-row{grid-template-columns:34px minmax(0,1fr);padding:6px 4px}.word-formation-options .cloze-choice-cells{display:block}.word-formation-options .cloze-text-answer{max-width:none}@media(max-width:650px){.word-formation-options{grid-template-columns:1fr;gap:2px}}

.listening-player{padding:16px;margin-bottom:20px;background:#eef4ee;border-radius:12px}.listening-player b,.listening-player small{display:block}.listening-player audio{display:block;width:100%;margin:12px 0}.listening-player small{color:#5d6c62;font-size:12px;overflow-wrap:anywhere}