@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@400;500;600;700&family=Noto+Serif+TC:wght@500;600;700;900&display=swap');
:root{--paper:#f5f2e9;--surface:#fffcf5;--ink:#263f38;--muted:#61716a;--jade:#2f6859;--red:#a44433;--line:#dedfd1;--control-line:#7d8c80;--gold:#aa8249;--serif:'Noto Serif TC',serif}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:'Noto Sans TC',sans-serif;font-size:16px;line-height:1.65}body:before{content:'';position:fixed;inset:0;pointer-events:none;opacity:.15;z-index:10;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.88' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Cpath fill='%23887956' opacity='.18' filter='url(%23n)' d='M0 0h160v160H0z'/%3E%3C/svg%3E")}button,input,textarea,select{font:inherit}button,a,input,select,textarea{touch-action:manipulation}button{cursor:pointer;min-height:44px;border:1px solid var(--control-line);border-radius:7px;background:var(--surface);color:var(--ink);padding:10px 20px;transition:background .18s,box-shadow .18s}button:hover{background:#e9eddf;box-shadow:0 3px 10px #243d3810}button:active{background:#d7dfcc}button:disabled{opacity:.45;cursor:not-allowed;box-shadow:none}a{color:var(--jade);text-underline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--gold);outline-offset:4px}.primary{background:var(--jade);border-color:var(--jade);color:#fff}.primary:hover{background:#224f43}.vermilion{background:var(--red);color:white;border-color:var(--red)}.vermilion:hover{background:#8b382b}.quiet{border-color:transparent;background:transparent}.shell{display:grid;grid-template-columns:222px 1fr;min-height:100dvh}.sidebar{border-right:1px solid var(--line);padding:32px 20px;display:flex;flex-direction:column;gap:35px;background:#eeeee3}.brand{display:flex;gap:12px;align-items:center;font-family:var(--serif);font-weight:900;font-size:23px;white-space:nowrap}.seal{display:grid;place-items:center;width:40px;height:44px;background:var(--red);color:#fff8dd;font-size:23px;border-radius:5px;transform:rotate(-4deg);outline:1px solid #fff8dd;outline-offset:-5px}.brand small{font:10px sans-serif;letter-spacing:3px;display:block;color:var(--muted)}nav{display:grid;gap:8px}nav button{text-align:left;background:transparent;border:0;display:flex;align-items:center;gap:12px}nav button.active{background:#dce4d5;color:var(--jade);font-weight:700}svg.icon{width:20px;height:20px;vertical-align:middle;flex-shrink:0}.sidefoot{margin-top:auto;font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:20px}.sidequote{font-family:var(--serif);font-size:17px;line-height:2.1;color:#71806e}.workspace{min-width:0}.topbar{height:88px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 42px}.breadcrumb{font-size:14px;color:var(--muted)}.profile{display:flex;align-items:center;gap:10px;font-size:14px}.avatar{width:34px;height:34px;display:grid;place-items:center;background:#dce3d3;border-radius:50%;font-family:var(--serif)}main{max-width:1440px;margin:auto;padding:36px 42px 48px}.eyebrow{font-size:12px;letter-spacing:3px;color:var(--jade);font-weight:700}.hero{position:relative;min-height:366px;border:1px solid #d5dbca;border-radius:12px;overflow:hidden;background:#eaeede;margin:0 0 34px}.hero img{position:absolute;right:-20px;bottom:-20px;width:67%;height:110%;object-fit:cover;object-position:right center}.hero-copy{position:relative;z-index:1;padding:40px;width:56%}.hero h1{font-family:var(--serif);font-weight:900;font-size:clamp(30px,3.4vw,49px);line-height:1.45;letter-spacing:3px;margin:12px 0 16px}.hero h1 span{color:var(--jade)}.hero p{color:#536657;font-size:15px;max-width:340px;margin:0 0 24px}.actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.sectionhead{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:28px 0 20px}h2{font-family:var(--serif);font-size:25px;margin:0}h3{font-family:var(--serif);font-size:20px;margin:0 0 10px}.sectionhead p,.muted{color:var(--muted);font-size:14px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.card{background:var(--surface);border:1px solid var(--line);border-radius:10px;overflow:hidden}.card-art{height:157px;background:#e8eddf;position:relative;overflow:hidden}.card-art img{position:absolute;width:100%;height:180%;object-fit:cover;object-position:center 64%;bottom:-30px}.card-art.peach{background:#eee2d2}.card-art.blue{background:#dfe8e4}.card-art.peach img{filter:sepia(.45);transform:scaleX(-1)}.card-art.blue img{filter:hue-rotate(18deg)}.card-art .tag{position:absolute;top:15px;left:15px;z-index:1}.art-title{position:absolute;left:24px;top:53px;font-family:var(--serif);font-size:28px;letter-spacing:5px;font-weight:900;writing-mode:vertical-rl}.card-body{padding:20px}.card p{color:var(--muted);font-size:14px;margin:8px 0 18px}.card-actions{display:flex;gap:8px;border-top:1px solid var(--line);padding-top:16px}.card-actions button{flex:1;padding:8px}.tag{font-size:12px;padding:3px 9px;background:#fffcf0e8;border:1px solid #d2d8c7;border-radius:4px;color:#526852}.smalltag{display:inline-block;font-size:12px;color:var(--jade);border:1px solid #ced9ca;border-radius:4px;padding:2px 7px;margin-right:5px}.join-strip{margin-top:26px;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:23px 28px;border:1px solid var(--line);border-radius:8px;background:#eeede0}.join-strip h3{margin:0}.join-strip p{margin:4px 0 0;font-size:14px;color:var(--muted)}.page-title{margin-bottom:28px}.page-title h1{font:700 32px var(--serif);margin:0 0 8px}.page-title p{margin:0;color:var(--muted)}input,textarea,select{border:1px solid var(--control-line);background:var(--surface);border-radius:6px;color:var(--ink);padding:12px;width:100%;min-height:46px}textarea{resize:vertical;min-height:100px}label{display:block;font-size:14px;font-weight:600;margin-bottom:7px}.field{margin-bottom:18px}.formpanel{max-width:470px;padding:32px;margin:40px auto;background:var(--surface);border:1px solid var(--line);border-radius:12px}.formpanel h1{font-family:var(--serif);margin:10px 0}.code-input{font-size:26px;letter-spacing:8px;text-align:center}.wide{width:100%}.roomhead{display:flex;justify-content:space-between;gap:20px;align-items:center;flex-wrap:wrap;margin-bottom:24px}.roomcode{font-size:25px;letter-spacing:5px;font-weight:700;color:var(--jade)}.classgrid{display:grid;grid-template-columns:minmax(0,1fr) 268px;gap:24px}.slide{background:var(--surface);border:1px solid #ccd4c4;border-radius:10px;min-height:440px;position:relative;padding:40px;overflow:hidden}.slide.content{background:#e9eee0 url('/landscape.svg') right bottom/75% auto no-repeat}.slide.content .slide-body{max-width:60%;position:relative}.slide h1{font:700 clamp(25px,3vw,38px)/1.6 var(--serif);margin:24px 0 14px}.slide-body{white-space:pre-wrap;line-height:1.9;font-size:18px}.slide .eyebrow{display:flex;justify-content:space-between}.options{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:25px 0}.option{text-align:left;display:flex;gap:12px;align-items:center;padding:16px}.option b{border:1px solid var(--control-line);border-radius:50%;width:30px;height:30px;display:grid;place-items:center;flex-shrink:0}.option.selected{border:2px solid var(--jade);background:#e5eddf}.option.correct{border:2px solid var(--jade);background:#e5eddf}.feedback{padding:12px;background:#e7eedf;border-left:3px solid var(--jade);margin:18px 0;font-size:15px}.roomaside{background:#ecefe4;padding:23px;border:1px solid var(--line);border-radius:10px;align-self:start}.statrow{display:flex;justify-content:space-between;margin:15px 0}.statrow strong{font-size:23px}.divider{height:1px;background:var(--line);margin:20px 0}.controls{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:18px}.responses{display:grid;gap:10px;margin-top:20px}.response{padding:14px;border:1px solid var(--line);background:#fffdf5;border-radius:6px;overflow-wrap:anywhere}.response small{display:block;color:var(--muted);margin-bottom:4px}.bar{height:8px;background:#dce4d6;border-radius:5px;margin:5px 0 15px;overflow:hidden}.bar span{display:block;height:100%;background:var(--jade)}.editor{display:grid;grid-template-columns:220px 1fr;gap:24px}.slide-list{display:grid;align-content:start;gap:10px}.slide-list button{text-align:left;font-size:14px;overflow-wrap:anywhere}.slide-list button.active{border:2px solid var(--jade);background:#e5ebdd}.editpanel{padding:28px;background:var(--surface);border:1px solid var(--line);border-radius:10px}.editrow{display:grid;grid-template-columns:1fr 1fr;gap:18px}.feature-list{display:grid;gap:12px}.feature-row{padding:18px 22px;border:1px solid var(--line);border-radius:6px;background:var(--surface);display:flex;justify-content:space-between;gap:18px}.feature-row span{font-size:14px;color:var(--muted)}.error{color:#9a302b;font-size:14px;min-height:24px}.connection{font-size:13px;color:var(--muted)}#toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--ink);color:white;max-width:90%;border-radius:8px;padding:12px 24px;z-index:100;display:none}dialog{border:1px solid var(--line);border-radius:12px;padding:30px;background:var(--surface);color:var(--ink);max-width:min(94vw,500px)}dialog::backdrop{background:#162d2788}.skip{position:fixed;top:-100px;left:20px;z-index:200;background:white;padding:12px}.skip:focus{top:10px}.board{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.board .response{background:#f4e7bd;transform:rotate(-1deg)}.board .response:nth-child(2n){background:#e0eadc;transform:rotate(1deg)}.slide iframe{width:100%;aspect-ratio:16/9;border:0;margin-top:20px}.footer-note{font-size:12px;color:var(--muted);margin-top:32px;text-align:center;letter-spacing:2px}
@media(min-width:1600px){main{padding-top:45px}.hero{min-height:400px}.hero-copy{padding:50px}}
@media(max-width:1100px){.shell{grid-template-columns:190px 1fr}.sidebar{padding:28px 14px}.brand{font-size:20px}.topbar{padding:0 26px}main{padding:26px}.hero-copy{width:65%;padding:28px}.hero img{right:-100px}.grid{gap:12px}.card-body{padding:14px}.classgrid{grid-template-columns:1fr}.roomaside{display:block}.editor{grid-template-columns:180px 1fr}}
@media(max-width:760px){.shell{display:block}.sidebar{border-right:0;border-bottom:1px solid var(--line);padding:16px;gap:15px}.sidebar .brand{font-size:21px}.sidebar nav{display:flex;overflow-x:auto;gap:5px}.sidebar nav button{white-space:nowrap;padding:8px 10px;font-size:14px}.sidebar .sidequote,.sidebar .sidefoot{display:none}.topbar{height:64px;padding:0 18px}.topbar .breadcrumb{font-size:12px}.topbar button{padding:8px 12px}main{padding:20px 16px}.hero{min-height:460px}.hero-copy{width:100%;padding:24px}.hero h1{font-size:34px}.hero p{max-width:270px}.hero img{width:85%;height:70%;bottom:-80px;right:-85px;opacity:.85}.hero .actions{max-width:200px}.hero .actions button{width:100%}.grid{grid-template-columns:1fr}.card-art{height:185px}.card-art img{width:70%;right:0}.art-title{writing-mode:horizontal-tb;top:65px}.join-strip{display:block;padding:23px}.join-strip button{margin-top:15px}.sectionhead{align-items:flex-start}.sectionhead h2{font-size:23px}.profile span:last-child{display:none}.slide{padding:24px;min-height:400px}.slide.content{background-size:100% auto;padding-bottom:170px}.slide.content .slide-body{max-width:100%}.options{grid-template-columns:1fr}.editor{display:block}.slide-list{display:flex;overflow:auto;margin-bottom:20px;padding:4px}.slide-list button{min-width:150px}.editpanel{padding:20px}.editrow{grid-template-columns:1fr}.feature-row{display:block}.feature-row span{display:block;margin-top:5px}.roomhead{gap:12px}.board{grid-template-columns:1fr}.controls button{padding:10px 12px}.formpanel{padding:24px;margin:15px auto}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}

.import-preview img,.presentation-image,.drawing-response{display:block;max-width:100%;height:auto;margin:16px auto}.drawing-response{max-height:360px}.ink-tools{display:flex;flex-wrap:wrap;gap:10px;align-items:end;margin:20px 0}.ink-tools label{font-size:13px;min-width:65px}.ink-tools select{width:130px}.ink-tools input[type=color]{width:60px;padding:3px}.ink-tools input[type=range]{width:110px}.ink-stage{border:1px solid #b6c8b2;border-radius:8px;overflow:hidden;background:white}.ink-stage canvas{width:100%;height:auto;display:block;touch-action:none;cursor:crosshair}.slide.image,.slide.draw{padding:24px}.slide.image h1{font-size:20px;margin:10px 0}.ink-panel .muted{margin-top:8px}.slide-list{max-height:75vh;overflow:auto}.import-preview{border:1px solid var(--line);margin:20px 0}

.roomaside select,.roomaside input,.slide textarea{max-width:100%;width:100%;box-sizing:border-box}.roomaside label{display:block;margin-top:12px}.roomaside button{margin:4px 0}.slide details{margin:12px 0}.slide details summary{cursor:pointer;font-weight:600}.slide details p{white-space:pre-wrap}dialog{max-width:min(680px,90vw);max-height:85vh;overflow:auto}dialog input{max-width:100%}.roomaside{overflow-wrap:anywhere}

.thumb-grid{display:grid;gap:8px}.thumb-grid img{width:100%;max-height:120px;object-fit:contain}

/* 文字雲：保留可讀取的文字與人數，窄螢幕自動換行。 */
.wordcloud-panel{margin-top:24px;padding:24px 16px;border:1px solid #c4d1bf;border-radius:48% 12% 42% 10% / 16% 12% 16% 10%;background:radial-gradient(ellipse at center,#e4eadc 0%,#f7f3e9 72%)}
.wordcloud-terms{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:16px 24px;list-style:none;padding:20px 0;margin:0;min-height:180px}
.wordcloud-word{display:flex;align-items:baseline;gap:6px;max-width:100%;font-weight:700;line-height:1.35;text-align:center}
.wordcloud-word span{overflow-wrap:anywhere;min-width:0}.wordcloud-word small{font-size:12px;white-space:nowrap;font-weight:400}
.wordcloud-word.tone-0{color:#254e43}.wordcloud-word.tone-1{color:#935039}.wordcloud-word.tone-2{color:#375d73}.wordcloud-word.tone-3{color:#6b5933}
@media(max-width:600px){.wordcloud-panel{padding:18px 10px}.wordcloud-terms{gap:12px}}
/* 限時測驗與班級排名 */
.race-config{padding:20px;background:#eef0e4;border-radius:12px;margin-bottom:24px}.race-config input{max-width:160px;margin:8px 12px 8px 0}
.race-timer{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin:24px 0;padding:18px;border-radius:16px;background:#e6ecdf;color:#254e43;font-variant-numeric:tabular-nums}.race-timer strong{font-size:36px}.race-timer span{font-size:16px}
.race-controls{display:grid;gap:12px;margin:20px 0}.race-ranking{padding:24px;background:#faf8f0;border:1px solid #d7dece;border-radius:18px;margin:24px 0}.race-table-wrap{overflow-x:auto}.race-table{border-collapse:collapse;width:100%;font-variant-numeric:tabular-nums}.race-table th,.race-table td{text-align:left;padding:14px 10px;border-bottom:1px solid #d7dece}.race-table td:nth-child(2){overflow-wrap:anywhere}.race-table tr.race-me{background:#e5ecdb}.race-table strong{color:#9c4933}.race-slide .option:disabled{opacity:.85}
@media(max-width:600px){.race-ranking{padding:16px 8px}.race-table th,.race-table td{padding:12px 5px;font-size:14px}.race-timer strong{font-size:28px}}
/* 教學增能：排列題、拍照、把握程度、第二輪、抬頭看老師、即時診斷 */
.arrange-box{margin:24px 0;display:grid;gap:14px}.arrange-list{display:grid;gap:10px;padding:0;margin:0;list-style-position:inside}.arrange-list li,.arrange-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border:1px solid var(--control-line);border-radius:12px;background:var(--surface)}.arrange-row span{flex:1;overflow-wrap:anywhere}.arrange-row select{max-width:55%}.arrange-move{display:flex;gap:6px}.arrange-move button{min-width:44px;min-height:44px;padding:0}
.ok{color:var(--jade)}.ng{color:var(--red)}
.photo-answer{display:grid;gap:12px;margin:24px 0}.photo-pick{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:10px 18px;border:1px dashed var(--jade);border-radius:12px;color:var(--jade);cursor:pointer}.photo-pick input{position:absolute;opacity:0;width:1px;height:1px}.photo-preview,.photo-answer img{max-width:100%;max-height:360px;border-radius:12px;object-fit:contain}
.confidence{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:18px 0}.confidence span{color:var(--muted);margin-right:4px}.confidence button{min-height:44px}.confidence button[aria-pressed=true]{background:var(--jade);color:#fff;border-color:var(--jade)}
.round-banner,.group-banner{margin:14px 0;padding:12px 16px;border-radius:12px;background:#f4ead2;color:#6b5933}.group-banner{background:#e6ecdf;color:var(--jade)}
.attention-overlay{position:fixed;inset:0;z-index:50;display:grid;place-items:center;background:rgba(37,78,67,.94);color:#fff;text-align:center;padding:24px}.attention-overlay h2{font-family:var(--serif);font-size:clamp(32px,8vw,56px);margin:16px 0}.attention-overlay .seal{display:inline-grid;place-items:center;width:64px;height:64px;border-radius:12px;background:var(--red);font-family:var(--serif);font-size:32px}
.insight{padding:16px;margin-bottom:18px;border:1px solid var(--line);border-radius:14px;background:var(--surface)}.insight h3{margin:0 0 8px}.insight p{margin:8px 0;overflow-wrap:anywhere}.insight .warn{color:var(--red)}.insight .peer{padding:10px;border-radius:10px;background:#e6ecdf}.tool-row{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0}.tool-row button{flex:1 1 auto;min-height:44px}.insight details{margin-top:10px}
#modal .picked{font-family:var(--serif);font-size:clamp(36px,9vw,64px);text-align:center;color:var(--jade);margin:24px 0}#group-form{display:grid;gap:10px;margin-bottom:12px}
@media(max-width:600px){.arrange-row{flex-direction:column;align-items:stretch}.arrange-row select{max-width:none}}
/* 自主練習：自主進度、朱批共讀、錄音、影片提問 */
.pace-nav{display:grid;gap:10px;margin:16px 0}.review-go{border-color:var(--red);color:var(--red)}
.reading{margin:20px 0;display:grid;gap:14px}.reading-list{list-style:none;padding:0;margin:0;display:grid;gap:8px}.sentence{display:block;width:100%;text-align:left;font-family:var(--serif);font-size:clamp(18px,2.4vw,22px);line-height:1.9;padding:10px 14px;border:1px solid var(--control-line);border-radius:10px;background:color-mix(in srgb,var(--red) calc(var(--heat,0)*28%),var(--surface));color:var(--ink);position:relative}.sentence:disabled{opacity:1;cursor:default}.sentence.stamped{border-color:var(--red)}
.stamp,.stamp-inline{display:inline-grid;place-items:center;width:1.8em;height:1.8em;margin-left:.5em;border:2px solid var(--red);border-radius:6px;color:var(--red);font-weight:700;font-size:.8em;transform:rotate(-8deg);vertical-align:middle}.stamp-inline{margin:0 .4em 0 0}.heat{display:block;font-family:inherit;font-size:14px;color:var(--red);margin-top:2px}
.audio-answer{display:grid;gap:12px;margin:24px 0}.audio-answer audio,.response audio{width:100%;max-width:420px}
.checkpoints{margin:20px 0;display:grid;gap:12px}.checkpoint-row{padding:12px;border:1px solid var(--line);border-radius:12px;background:var(--surface)}
/* 多教師：帳號、範本庫、儀表板、記憶牌卡 */
.account-pill{display:inline-flex;align-items:center;min-height:40px;padding:6px 14px;border-radius:999px;background:#e6ecdf;color:var(--jade);font-size:14px;overflow-wrap:anywhere}
.google-login{display:grid;gap:10px;margin:8px 0 16px;padding-bottom:12px;border-bottom:1px solid var(--line)}#google-button{min-height:44px}
.template-list{display:grid;gap:8px;margin:12px 0}.template-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}.template-row small{display:block;color:var(--muted)}.template-row span{overflow-wrap:anywhere}
#add-teacher{display:grid;gap:8px;margin:12px 0}.share-toggle{display:flex;align-items:center;gap:8px;margin:-8px 0 20px;color:var(--muted)}
#modal:has(.dash-table){width:min(960px,calc(100vw - 32px))}.dash-scroll{overflow-x:auto;margin:12px 0}.dash-table{border-collapse:collapse;font-variant-numeric:tabular-nums;min-width:100%}.dash-table th,.dash-table td{padding:8px 10px;border-bottom:1px solid var(--line);text-align:center;white-space:nowrap}.dash-table th small{display:block;font-weight:400;color:var(--muted)}.dash-table td.low{background:#f3d9d0;color:#8a3a26}.dash-table td.mid{background:#f4ead2}.dash-table td.high{background:#e0eadb}
.missed{display:grid;gap:8px;padding-left:1.4em}.missed small{display:block;color:var(--muted)}
.flashcards{display:grid;gap:12px;margin:20px 0;justify-items:center}.flashcard{width:min(100%,420px);min-height:200px;display:grid;place-items:center;gap:6px;padding:24px;border:1px solid var(--line);border-radius:18px;background:var(--surface);font-family:var(--serif);font-size:clamp(24px,5vw,36px);box-shadow:0 8px 24px rgba(37,78,67,.08)}.flashcard.flipped{background:#f4ead2}.flashcard small{font-family:inherit;font-size:14px;color:var(--muted)}.flashcards [aria-pressed=true]{background:var(--jade);color:#fff}
.card-tally{margin:20px 0}
/* 專家審查修正：答錯標示、各選項解析、連線提示、自主進度、學習卡、簡報模式、字級 */
.option.wrong{border:2px solid var(--red,#b3402e);background:#f8e4df}
.options.revealed .option:disabled,.race-slide .options .option:disabled{opacity:1}
.option span{min-width:0}.option .why{display:block;margin-top:6px;font-size:.88em;color:#4b5a53;line-height:1.5}
#netbar{position:sticky;top:0;z-index:120;background:#8a2b1d;color:#fff;padding:10px 16px;text-align:center;font-weight:600}
.pace-dots{display:flex;flex-wrap:wrap;gap:6px;margin:12px 0}.pace-dots .dot{min-width:34px;height:34px;padding:0 6px;border-radius:17px;font-size:14px}.pace-dots .dot.done{background:#e5eddf;border-color:var(--jade)}.pace-dots .dot.todo{border-style:dashed}.pace-dots .dot.due{border:2px solid var(--red,#b3402e)}.pace-dots .dot.here{outline:3px solid var(--jade);outline-offset:1px}
.pace-done{background:#e5eddf;border:1px solid var(--jade);border-radius:8px;padding:12px 16px;margin:12px 0}
.learning-card{background:var(--surface,#fff);border:2px solid var(--jade);border-radius:10px;padding:20px 24px;margin:20px 0}.learning-card ol{padding-left:1.4em}.learning-card li{display:flex;justify-content:space-between;gap:12px;padding:6px 0;border-bottom:1px dashed #ccd4c4}.learning-card li.ok strong,.learning-card li.fixed strong{color:var(--jade)}.learning-card li.ng strong{color:var(--red,#b3402e)}.learning-card li.skip strong{color:#777}
.deck-check{margin:0 0 12px;min-height:1.4em}.deck-check.ok{color:var(--jade)}.deck-check.warn{color:var(--red,#b3402e);font-weight:600}
.accept-tools{margin-top:16px}.accept-tools .statrow{gap:8px;align-items:center}
.roster summary{cursor:pointer;font-weight:600;margin:12px 0 6px}
.slide h1,.slide .slide-body,.slide .options,.slide .feedback,.slide .reading,.slide .arrange-box,.slide #answerform,.slide .flashcards,.learning-card{zoom:var(--reader-scale,1)}
body.present .sidebar,body.present .topbar,body.present .roomaside,body.present .roomhead .actions>:not([data-action="present"]){display:none}
body.present .shell{display:block}body.present .classgrid{grid-template-columns:1fr}body.present .slide{min-height:calc(100dvh - 140px)}body.present .slide h1{font-size:clamp(32px,4.5vw,64px)}body.present .slide-body{font-size:1.4em}
.present-hint{position:absolute;right:16px;bottom:10px;font-size:13px;color:#7b867f;margin:0}
@media print{body *{visibility:hidden}.learning-card,.learning-card *{visibility:visible}.learning-card{position:absolute;inset:0 auto auto 0;width:100%;border:0}.learning-card button{display:none}}
/* 座號接回請求：放在名單上方，老師一眼看到 */
.claims{border:2px solid var(--red);border-radius:12px;padding:10px 12px;margin:10px 0;background:#fff4ec}
.claims>div{display:flex;justify-content:space-between;align-items:center;gap:8px;margin:6px 0}

/* 第二批：螢幕閱讀器通知區、換頁焦點 */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.slide h1:focus{outline:none}