:root{--bg:#080c18;--panel:#11182a;--panel2:#172036;--line:#26324c;--text:#f4f7ff;--muted:#8e9ab6;--cyan:#42e8d0;--purple:#8b72ff;--orange:#ffb44a;--red:#ff5f73;--green:#47d787;--shadow:0 18px 55px #0007}
*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at 80% -10%,#18204c 0,transparent 35%),var(--bg);color:var(--text);font-family:Inter,"Microsoft YaHei",system-ui,sans-serif;min-height:100vh}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled,input:disabled{cursor:not-allowed;opacity:.58}button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}.hidden{display:none!important}.muted{color:var(--muted)}.eyebrow{margin:0 0 5px;color:var(--cyan);font-size:11px;letter-spacing:1.5px;font-weight:800}.login-shell{min-height:100vh;display:grid;place-items:center;padding:24px}.login-card{width:min(420px,100%);background:#11182ae8;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:28px;padding:32px}.brand-mark{width:64px;height:64px;border-radius:20px;background:linear-gradient(135deg,var(--cyan),var(--purple));display:grid;place-items:center;color:#071019;font-weight:950;font-size:26px;box-shadow:0 0 35px #42e8d044}.login-card h1{font-size:38px;margin:8px 0}.login-card label{display:grid;gap:8px;margin:22px 0 14px}.login-card small{display:block;color:var(--muted);margin-top:14px}.role-switch,.choice-row{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;background:#0b1120;padding:5px;border-radius:14px}.choice-row{grid-template-columns:repeat(3,1fr)}.role-switch button,.choice-row button,.chips button,.quick-prompts button{border:1px solid transparent;background:transparent;color:var(--muted);border-radius:10px;padding:11px;min-height:44px;touch-action:manipulation;transition:background .15s,border-color .15s,color .15s,transform .15s}.role-switch button.active,.choice-row button.active,.chips button.active{background:linear-gradient(135deg,#163a42,#243250);border-color:#42e8d099;color:#fff;box-shadow:0 0 0 1px #42e8d022,0 6px 18px #0006;font-weight:800}.choice-row button.active::before,#schoolSubjects button.active::before{content:"✓ ";color:var(--cyan)}.selection-summary{margin:14px 0 12px;padding:10px 12px;border:1px solid #42e8d044;border-radius:11px;background:#42e8d00d;color:#c7fff7;font-size:12px;line-height:1.6}.task-head-actions{display:flex;align-items:center;justify-content:flex-end;gap:7px;flex-wrap:wrap}input,textarea,select{width:100%;border:1px solid var(--line);background:#0a1020;color:var(--text);border-radius:13px;padding:13px;resize:vertical}.primary{border:0;background:linear-gradient(135deg,var(--cyan),#4fc1ff);color:#061119;font-weight:850;border-radius:13px;padding:13px 18px;box-shadow:0 8px 24px #42e8d022}.wide{width:100%}.small{padding:9px 13px;font-size:13px}.ghost,.link{border:1px solid var(--line);background:transparent;color:var(--muted);border-radius:11px;padding:9px 12px}.link{border:0;color:var(--cyan)}.app{width:min(1080px,100%);margin:auto;padding:0 22px 100px}.app>header{display:flex;justify-content:space-between;align-items:center;padding:25px 2px 18px}.app h2,.app h3{margin:0}.page{display:none}.page.active{display:block;animation:enter .25s ease}@keyframes enter{from{opacity:0;transform:translateY(6px)}}.panel{background:linear-gradient(145deg,#131b2f,#0e1527);border:1px solid var(--line);border-radius:20px;padding:20px;box-shadow:0 12px 35px #0003}.hero{display:flex;justify-content:space-between;align-items:center;overflow:hidden;position:relative}.hero:after{content:"";position:absolute;width:180px;height:180px;border-radius:50%;background:#8b72ff22;right:-40px;top:-100px}.hero strong{display:block;font-size:28px;margin:10px 0}.hero strong b{font-size:54px}.badge{display:inline-flex;background:#42e8d01c;color:var(--cyan);border:1px solid #42e8d044;border-radius:99px;padding:5px 9px;font-size:11px;font-weight:800}.rank-orb{width:105px;height:105px;display:grid;place-content:center;text-align:center;border-radius:50%;background:radial-gradient(circle,#192940,#0b1020);border:5px solid #8b72ff;box-shadow:0 0 28px #8b72ff55;z-index:1}.rank-orb span{font-size:20px;font-weight:900}.rank-orb small{color:var(--muted);margin-top:5px}.section-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:27px 0 14px}.panel .section-head{margin-top:0}.label{font-size:13px;color:var(--muted);margin:18px 0 8px}.chips{display:flex;flex-wrap:wrap;gap:8px}.chips button{background:#111a2f;border:1px solid var(--line);padding:9px 12px}.card-list{display:grid;gap:10px}.task,.wrong-card,.report-card{display:flex;gap:14px;align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:17px;padding:15px}.task-icon{width:44px;height:44px;flex:0 0 44px;border-radius:13px;background:#42e8d015;display:grid;place-items:center;color:var(--cyan);font-weight:900}.task-main{flex:1}.task h4,.wrong-card h4{margin:0 0 6px}.meta{display:flex;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:12px}.progress{height:7px;background:#0a1020;border-radius:99px;overflow:hidden;margin-top:10px}.progress i{display:block;height:100%;background:linear-gradient(90deg,var(--cyan),var(--purple));border-radius:inherit}.subject-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.subject-card{background:var(--panel);border:1px solid var(--line);border-radius:17px;padding:15px}.subject-card strong{font-size:24px;display:block;margin-top:8px}.subject-card small{color:var(--muted)}.empty-box{border:1px dashed var(--line);border-radius:16px;padding:28px;text-align:center;color:var(--muted)}.question-card{margin-top:18px}.question-card h3{line-height:1.65}.answer-row{display:flex;gap:10px;margin-top:18px}.answer-row input{flex:1}.option-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:18px 0 12px}.option-list button{display:flex;align-items:center;gap:10px;min-height:54px;padding:12px;text-align:left;border:1px solid var(--line);border-radius:13px;background:#0a1020;color:var(--text);touch-action:manipulation}.option-list button span{display:grid;place-items:center;flex:0 0 28px;width:28px;height:28px;border-radius:9px;background:#1b2741;color:var(--cyan);font-weight:900}.option-list button.active{border-color:var(--cyan);background:#15313b;box-shadow:0 0 0 1px #42e8d033}.option-list button.active span{background:var(--cyan);color:#071019}.result{margin-top:15px;padding:13px;border-radius:12px;background:#091221}.correct{color:var(--green)}.incorrect{color:var(--red)}.review-needed{color:var(--orange);border:1px solid #ffb44a55}.chat-box{min-height:320px;max-height:52vh;overflow:auto;display:flex;flex-direction:column;gap:11px;padding:16px 2px}.message{max-width:82%;padding:12px 14px;border-radius:16px;line-height:1.65;white-space:pre-wrap}.message.assistant{align-self:flex-start;background:var(--panel2);border-bottom-left-radius:4px}.message.user{align-self:flex-end;background:#256b69;color:white;border-bottom-right-radius:4px}.quick-prompts{display:flex;gap:7px;overflow:auto;padding-bottom:9px}.quick-prompts button{white-space:nowrap;background:#111a2f;border:1px solid var(--line);font-size:12px}.chat-compose{display:flex;gap:9px;align-items:flex-end}.chat-compose textarea{min-height:52px}.verify-box{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:10px;color:var(--muted)}.verify-box button{border:1px solid var(--line);background:var(--panel);color:var(--text);padding:8px 11px;border-radius:10px}.wrong-card{align-items:flex-start}.wrong-card>div{flex:1}.due{color:var(--orange)}.knowledge-list{display:grid;gap:7px;margin-top:15px}.knowledge-row{display:grid;grid-template-columns:1fr 110px 50px;gap:12px;align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:13px;padding:12px}.knowledge-row.depth-0{margin-top:16px;background:#19223a}.knowledge-row small{color:var(--muted)}.bar{height:8px;background:#090e1b;border-radius:9px;overflow:hidden}.bar i{display:block;height:100%}.bar.red i{background:var(--red)}.bar.yellow i{background:var(--orange)}.bar.green i{background:var(--green)}.bar.gray i{background:#65718c}.legend{display:flex;gap:8px;align-items:center;flex-wrap:wrap;color:var(--muted);font-size:12px;margin-top:12px}.dot{width:9px;height:9px;border-radius:50%;display:inline-block}.dot.red{background:var(--red)}.dot.yellow{background:var(--orange)}.dot.green{background:var(--green)}.dot.gray{background:#65718c}.metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.metric{background:var(--panel);border:1px solid var(--line);padding:18px;border-radius:17px}.metric strong{display:block;font-size:28px}.metric small{color:var(--muted)}.note{margin-top:20px}.note p{color:var(--muted);line-height:1.6;margin-bottom:0}nav{position:fixed;z-index:20;bottom:14px;left:50%;transform:translateX(-50%);width:min(620px,calc(100% - 24px));display:grid;grid-template-columns:repeat(5,1fr);background:#10182ef0;backdrop-filter:blur(16px);border:1px solid var(--line);padding:7px;border-radius:20px;box-shadow:var(--shadow)}nav button{border:0;background:transparent;color:var(--muted);display:grid;gap:3px;place-items:center;padding:7px 2px;border-radius:13px;font-size:11px}nav button span{font-size:20px}nav button.active{background:#263554;color:var(--cyan)}dialog{border:0;padding:0;background:transparent;color:var(--text);width:min(620px,calc(100% - 24px))}dialog::backdrop{background:#03050dcc;backdrop-filter:blur(5px)}.dialog-card{background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:20px}.upload-zone{display:grid;place-items:center;min-height:130px;border:1px dashed var(--cyan);border-radius:16px;margin:12px 0;color:var(--cyan)}.upload-zone input{display:none}#ocrResult{margin-top:16px}#toast{position:fixed;z-index:99;top:18px;left:50%;transform:translateX(-50%) translateY(-100px);background:#eef3ff;color:#111827;padding:11px 16px;border-radius:12px;box-shadow:var(--shadow);transition:.25s}#toast.show{transform:translateX(-50%) translateY(0)}
.data-admin{margin-top:14px}.data-admin summary{display:flex;justify-content:space-between;align-items:center;cursor:pointer;min-height:44px}.data-admin summary span{color:var(--muted);font-size:12px}.data-admin[open] summary span{font-size:0}.data-admin[open] summary span:after{content:"收起";font-size:12px}.danger{border:1px solid #ff5f7388;background:#ff5f7310;color:#ff9baa;font-weight:800;border-radius:13px;padding:12px 16px}.danger.solid{background:var(--red);color:#18070b;border-color:var(--red)}.warning{border:1px solid #ffb44a66;background:#ffb44a0e;color:#ffd594;border-radius:13px;padding:12px;line-height:1.65}.dialog-card label{display:grid;gap:7px;margin:14px 0}.confirm-check{grid-template-columns:22px 1fr!important;align-items:start}.confirm-check input{width:20px;height:20px;margin:1px 0 0}.reset-counts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.reset-counts span{background:#0a1020;border:1px solid var(--line);border-radius:11px;padding:10px}.reset-counts b{display:block;color:var(--text);font-size:20px}.reset-preview p{line-height:1.6}
#taskDialog{width:min(760px,calc(100% - 24px));max-height:calc(100vh - 24px);max-height:calc(100dvh - 24px)}.task-session-card{display:flex;flex-direction:column;max-height:calc(100vh - 24px);max-height:calc(100dvh - 24px);padding:18px;background:linear-gradient(155deg,#111a31,#080d1b);box-shadow:0 24px 80px #000c}.task-session-head{display:flex;align-items:center;justify-content:space-between;gap:14px;padding-bottom:13px;border-bottom:1px solid var(--line)}.task-session-head h3{margin:0}.task-session-head .ghost{min-width:52px;min-height:44px}.task-session-progress{padding:12px 2px}.task-session-progress-label{display:flex;justify-content:space-between;gap:12px;font-size:12px}.task-question-panel{min-height:0;overflow-y:auto;overscroll-behavior:contain;padding:10px 2px 16px}.task-question-meta{display:flex;align-items:center;justify-content:space-between;gap:10px}.task-question-prompt{white-space:pre-wrap;line-height:1.75;font-size:21px;margin:18px 0}.task-question-assets{display:grid;gap:10px;margin:14px 0}.task-question-assets img{display:block;width:100%;max-height:46vh;object-fit:contain;background:#fff;border:1px solid var(--line);border-radius:14px}.task-option-list button{min-height:60px}.task-option-list button b{font-weight:600;line-height:1.55;overflow-wrap:anywhere}.task-text-answer span{color:var(--muted);font-size:13px}.task-text-answer textarea{min-height:110px;line-height:1.65}.task-question-panel>.primary{min-height:52px;margin-top:8px}.task-question-panel .result{line-height:1.65}.task-question-panel .result p{margin:8px 0;white-space:pre-wrap}.task-session-actions{display:flex;gap:10px;padding-top:12px;border-top:1px solid var(--line)}.task-session-actions button{min-height:50px}.task-session-actions .ghost{flex:1}.start-task{min-width:62px;min-height:44px;touch-action:manipulation}
.task-stimulus{margin:14px 0;padding:15px;border-left:3px solid var(--cyan);border-radius:10px;background:#081426;color:#dbe7ff;line-height:1.8}.task-stimulus b{display:block;margin-bottom:6px;color:var(--cyan)}.task-stimulus p{margin:0;white-space:pre-wrap}.task-question-audio{display:grid;gap:10px;margin:14px 0}.task-question-audio>div{display:grid;gap:7px;padding:12px;border:1px solid var(--line);border-radius:13px;background:#0a1020}.task-question-audio span,.task-answer-hint{color:var(--muted);font-size:12px}.task-question-audio audio{width:100%;min-height:44px}.task-multi-blank{display:grid;gap:10px;margin:16px 0;padding:14px;border:1px solid var(--line);border-radius:14px}.task-multi-blank legend{padding:0 7px;color:var(--muted);font-size:13px}.task-multi-blank label{display:grid;grid-template-columns:70px 1fr;gap:10px;align-items:center;margin:0}.task-multi-blank label span{color:var(--muted);font-size:13px}.task-answer-hint{margin:-4px 0 12px}.question-bank-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.question-bank-card{display:grid;gap:11px;padding:15px;background:var(--panel);border:1px solid var(--line);border-radius:16px}.question-bank-card>div:first-child{display:flex;align-items:baseline;justify-content:space-between;gap:10px}.question-bank-card strong{font-size:24px;color:var(--cyan)}.question-bank-card strong small{font-size:11px;color:var(--muted)}.question-bank-facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;color:var(--muted);font-size:12px}
.task-fact{color:#c7fff7}.task-settlement{display:grid;gap:15px;text-align:center;padding:26px 6px 10px}.task-settlement>.badge{justify-self:center}.task-settlement h3{font-size:34px;margin:0}.task-settlement-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.task-settlement-grid>div{display:grid;gap:6px;background:#0a1020;border:1px solid var(--line);border-radius:15px;padding:17px}.task-settlement-grid small{color:var(--muted)}.task-settlement-grid strong{font-size:24px}.task-focus-note{margin:0;border:1px solid #47d78755;background:#47d78710;color:#bdf7d3;border-radius:13px;padding:13px;line-height:1.65}.task-focus-note.distracted{border-color:#ffb44a66;background:#ffb44a0e;color:#ffd594}
@media(max-width:650px){.app{padding:0 14px 94px}.subject-grid{grid-template-columns:repeat(2,1fr)}.metric-grid{grid-template-columns:1fr}.question-bank-grid{grid-template-columns:1fr}.hero strong b{font-size:42px}.rank-orb{width:88px;height:88px}.knowledge-row{grid-template-columns:1fr 75px 38px}.task{align-items:flex-start}.task .primary{padding:9px}.answer-row{flex-direction:column}.option-list{grid-template-columns:1fr}.tutor-setup{padding:14px}.message{max-width:92%}.reset-counts{grid-template-columns:1fr}}
@media(max-width:650px){#taskDialog{width:100%;max-width:none;max-height:100vh;max-height:100dvh}.task-session-card{max-height:100vh;max-height:100dvh;border-radius:0;padding:14px 14px max(14px,env(safe-area-inset-bottom))}.task-question-prompt{font-size:19px}.task-question-assets img{max-height:40vh}.task-session-actions{padding-bottom:env(safe-area-inset-bottom)}.task .start-task{padding:10px 13px}}
.question-image-frame{margin:0;min-width:0}.required-question-images img.is-load-failed{min-height:120px;opacity:.28;border-color:#ff718055}.question-image-load-state{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border:1px solid #4fc1ff55;border-radius:13px;background:#4fc1ff12;color:#dbe7ff;line-height:1.5}.question-image-load-state.is-error{border-color:#ff718088;background:#ff718014;color:#ffd8dc}.question-image-load-state button{flex:0 0 auto;min-height:44px;color:inherit;border-color:currentColor}.required-question-images.has-image-load-error{padding:10px;border:1px solid #ff718055;border-radius:16px;background:#ff718008}
@media(max-width:560px){.question-image-load-state{align-items:stretch;flex-direction:column}.question-image-load-state button{width:100%}.required-question-images img.is-load-failed{min-height:96px}}
.question-image-frame{position:relative}.task-question-assets .question-image-zoom{position:relative;display:block;width:100%;padding:0;overflow:hidden;border:1px solid var(--line);border-radius:14px;background:#fff;color:#071019;cursor:zoom-in;touch-action:manipulation}.task-question-assets .question-image-zoom:not(:disabled):hover{border-color:var(--cyan);box-shadow:0 0 0 2px #42e8d033}.task-question-assets .question-image-zoom:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}.task-question-assets .question-image-zoom img{display:block;width:100%;max-height:46vh;object-fit:contain;border:0;border-radius:13px;background:#fff}.task-question-assets .question-image-zoom>span{position:absolute;right:8px;bottom:8px;padding:5px 9px;border-radius:99px;background:#071019d9;color:#fff;font-size:12px;font-weight:750;box-shadow:0 3px 12px #0006;pointer-events:none}.task-question-assets .question-image-zoom:disabled>span{display:none}.question-image-lightbox{width:100vw;max-width:none;height:100vh;height:100dvh;max-height:none;margin:0;padding:0;background:transparent}.question-image-lightbox::backdrop{background:#02040bef;backdrop-filter:blur(6px)}.question-image-lightbox-card{position:absolute;inset:8px;display:grid;grid-template-rows:auto minmax(0,1fr) auto;gap:10px;padding:14px;border:1px solid #ffffff22;border-radius:18px;background:#080d18f7;box-shadow:0 24px 90px #000;color:var(--text)}.question-image-lightbox-card>header{display:flex;align-items:center;justify-content:space-between;gap:14px}.question-image-lightbox-card h3{margin:0}.question-image-lightbox-card .eyebrow{margin-bottom:3px}.question-image-lightbox-card>header button{min-width:64px;min-height:44px}.question-image-lightbox-viewport{min-height:0;overflow:auto;overscroll-behavior:contain;border-radius:12px;background:#e8edf5;touch-action:pan-x pan-y pinch-zoom}.question-image-lightbox-viewport:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}.question-image-lightbox-viewport img{display:block;width:auto;min-width:min(900px,100%);max-width:none;height:auto;min-height:100%;object-fit:contain;margin:auto;background:#fff}.question-image-lightbox-card>p{margin:0;text-align:center;font-size:12px}.question-image-lightbox-open{overflow:hidden}
@media(max-width:650px){.task-question-assets .question-image-zoom img{max-height:40vh}.question-image-lightbox-card{inset:0;border:0;border-radius:0;padding:10px 10px max(10px,env(safe-area-inset-bottom))}.question-image-lightbox-viewport img{min-width:900px;min-height:0;margin:0}.question-image-lightbox-card>p{text-align:left}}
.task-question-meta-badges{display:flex;align-items:center;gap:8px;flex-wrap:wrap;min-width:0}.interaction-profile-badge{border-color:#8b72ff66;background:#8b72ff18;color:#ded8ff}.question-origin-badge{border-color:#59d4a966;background:#59d4a918;color:#c8ffe8}.question-image-purpose{display:flex;align-items:center;gap:9px;margin:0;color:var(--muted);font-size:13px}.question-image-purpose .badge{flex:0 0 auto;color:#d6fff9}@media(max-width:560px){.question-image-purpose{align-items:flex-start;line-height:1.5}}
.app.compact-page>main{padding-top:25px}.hero-motivation{max-width:560px;margin:0;color:#dce6f8;line-height:1.7}.hero-motivation[lang="ja-JP"]{font-family:"Noto Sans JP","Yu Gothic","Microsoft YaHei",sans-serif;letter-spacing:.02em}@media(max-width:650px){.hero{gap:14px}.hero-motivation{max-width:230px;font-size:13px}.app.compact-page>main{padding-top:14px}}
.question-support-actions{display:flex;align-items:center;justify-content:flex-end;gap:8px;margin:-4px 0 12px}.question-feedback-trigger{color:#9eaac3;font-size:13px}.question-feedback-trigger:before{content:"⛔";margin-right:5px}.question-feedback-form{display:grid;gap:12px}.question-feedback-form .section-head{margin:0}.question-feedback-prompt{max-height:130px;overflow:auto;margin:0;padding:12px;border:1px solid var(--line);border-radius:12px;background:#0a1020;color:#dce6f8;line-height:1.65;white-space:pre-wrap}.question-feedback-form>small{text-align:center;line-height:1.5}.feedback-summary-list{display:grid;gap:8px}.feedback-summary-item{display:grid;gap:8px;padding:14px;border:1px solid var(--line);border-radius:14px;background:var(--panel)}.feedback-summary-item>div{display:flex;align-items:center;justify-content:space-between;gap:12px}.feedback-summary-item>div span,.feedback-summary-item small{color:var(--muted);font-size:12px}.feedback-summary-item p{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden;margin:0;color:#dce6f8;line-height:1.6}.feedback-summary-item small{line-height:1.5}@media(max-width:650px){.question-support-actions{justify-content:space-between;align-items:stretch}.question-support-actions .link{min-height:44px;padding-inline:6px}.feedback-summary-item>div{align-items:flex-start;flex-direction:column;gap:4px}}