:root{--bg:oklch(1 0 0);--surface:oklch(.976 .004 140);--surface-2:oklch(.948 .007 140);--ink:oklch(.24 .015 140);--muted:oklch(.48 .015 140);--line:oklch(.89 .008 140);--primary:oklch(.42 .10 140);--primary-hover:oklch(.35 .09 140);--primary-soft:oklch(.94 .035 140);--red:oklch(.48 .17 25);--red-soft:oklch(.97 .02 25);--amber:oklch(.43 .10 70);--amber-soft:oklch(.97 .035 80);--purple:oklch(.48 .17 300);--purple-soft:oklch(.96 .025 300);--blue:oklch(.44 .14 250);--shadow:0 1px 2px oklch(.2 .02 140/.04),0 10px 28px oklch(.2 .02 140/.05);--page:oklch(.973 .006 140);--radius:12px;--z-sidebar:20;--z-modal:40;--z-toast:60;font:14px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none}
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svg{position:absolute;left:10px;top:11px;color:var(--muted);width:16px;height:16px}.table-scroll{overflow:auto;max-width:100%}table{width:100%;border-collapse:collapse;text-align:left;white-space:nowrap;font-size:12px}th{font-weight:500;color:var(--muted);background:var(--surface);padding:11px 17px;border-bottom:1px solid var(--line);font-size:11px}td{padding:13px 17px;border-bottom:1px solid var(--line);vertical-align:middle}tbody tr:last-child td{border-bottom:0}tbody tr:hover{background:var(--surface)}td .sub{display:block;color:var(--muted);font-size:10px}.table-title{font-weight:550}.table-foot{padding:12px 17px;color:var(--muted);font-size:11px;border-top:1px solid var(--line)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.field{display:grid;gap:6px;min-width:0}.field.full{grid-column:1/-1}.field>label{font-size:12px;font-weight:550}.field .hint{font-size:11px;color:var(--muted)}input:not([type=checkbox]):not([type=radio]),select,textarea{width:100%;border:1px 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h2{font-size:25px;letter-spacing:-.03em;margin-bottom:5px}.login-form-wrap>p{font-size:12px;color:var(--muted);margin-bottom:26px}.login-form-wrap form{display:grid;gap:17px}.login-form-wrap .primary{width:100%;margin-top:8px;min-height:43px}.login-switch{font-size:12px;color:var(--muted);text-align:center;margin-top:18px}.login-switch button{font-size:12px;min-height:30px;padding:3px 5px;color:var(--primary)}.login-privacy{font-size:10px;color:var(--muted);line-height:1.8;margin-top:35px;max-width:43ch}.demo-banner{padding:9px 12px;background:var(--amber-soft);border:1px solid var(--line);border-radius:6px;font-size:11px;margin-bottom:18px;color:var(--amber)}dialog{border:1px solid var(--line);padding:0;border-radius:12px;box-shadow:0 18px 70px oklch(.15 .015 140/.18);width:540px;max-width:calc(100vw - 28px);max-height:calc(100dvh - 36px);color:var(--ink);background:var(--bg);z-index:var(--z-modal)}dialog::backdrop{background:oklch(.17 .015 140/.40)}.dialog-head{padding:19px 23px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:12px}.dialog-head h2{font-size:17px}.dialog-body{padding:22px 23px;overflow:auto}.dialog-actions{padding:15px 23px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:9px;background:var(--surface)}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%,12px);background:var(--ink);color:oklch(1 0 0);padding:11px 18px;border-radius:8px;font-size:12px;box-shadow:var(--shadow);z-index:var(--z-toast);opacity:0;pointer-events:none;transition:opacity .18s,transform .18s;max-width:calc(100vw - 30px)}.toast.visible{opacity:1;transform:translate(-50%,0)}.toast.error{background:var(--red)}.mobile-backdrop{display:none}.codes{background:var(--surface);padding:15px;border:1px solid var(--line);border-radius:6px;font:12px/1.9 ui-monospace,Consolas,monospace;white-space:pre-wrap;max-height:260px;overflow:auto}.progress-track{height:5px;background:var(--surface-2);border-radius:3px;margin-top:12px;overflow:hidden}.progress-fill{height:100%;background:var(--primary);border-radius:3px}.view-footnote{margin-top:15px;color:var(--muted);font-size:10px}.mobile-only{display:none}
@media(min-width:1600px){.page{padding-top:32px}.room-scroll{padding:10px 30px 24px}.seat{min-height:63px}.seat-name{font-size:12px!important}.seat-row{gap:8px;margin:12px 0}.classroom-layout,.classroom-layout.student{grid-template-columns:minmax(0,1fr) 310px}}
@media(max-width:1250px){.shell{grid-template-columns:184px minmax(0,1fr)}.sidebar{width:184px;padding-left:12px;padding-right:12px}.page{padding:24px 22px}.topbar{padding:0 22px}.classroom-layout,.classroom-layout.student,.phone-layout{grid-template-columns:minmax(0,1fr)}.detail-panel{display:grid;grid-template-columns:1fr 1fr}.detail-panel .detail-section{border-bottom:1px solid var(--line)}.detail-panel .detail-empty{grid-column:1/-1;padding:22px}.detail-panel .checkin-receipt{grid-column:1/-1}.detail-empty svg{display:none}.phone-layout>.panel:last-child{display:block}.request-layout{grid-template-columns:330px minmax(0,1fr)}.bag-grid{gap:8px}.bag{min-height:52px}.stats-strip .stat{padding:14px 16px}.login-story{padding:40px}.score-detail-layout{grid-template-columns:220px minmax(0,1fr)}}
@media(max-width:860px),(max-height:500px) and (pointer:coarse){.shell{grid-template-columns:1fr}.workspace{grid-column:1}.sidebar{transform:translateX(-100%);transition:transform .2s ease-out;width:228px}.shell.menu-open .sidebar{transform:translateX(0)}.mobile-menu{display:inline-flex}.shell.menu-open .mobile-backdrop{display:block;position:fixed;inset:0;background:oklch(.2 .02 140/.35);z-index:19}.topbar{padding:0 18px;gap:9px;min-height:60px}.breadcrumb{display:none}.session-picker{max-width:330px;font-size:12px}.page{padding:22px 20px 30px}.page-heading{margin-bottom:18px}.page-heading h1{font-size:24px}.login-page{grid-template-columns:1fr;min-height:100dvh}.login-story{display:none}.login-form-area{padding:35px 24px;align-items:center}.login-form-wrap:before{content:"在课";display:block;color:var(--primary);font-size:26px;font-weight:650;margin-bottom:40px}.login-form-wrap{max-width:380px}.score-detail-layout{grid-template-columns:1fr}.score-summary{display:flex;align-items:center;gap:25px;flex-wrap:wrap;padding:20px}.score-summary .score-value{margin:0}.request-layout{grid-template-columns:1fr}.request-layout>.panel:first-child{max-width:none}.rules-list li{grid-template-columns:110px 1fr;gap:12px}.stat span{display:block;margin:4px 0 0}.stat p{display:none}.stat strong{font-size:23px}.stats-strip .stat{padding:12px 16px}.timeline-item{grid-template-columns:120px 1fr;gap:10px}.desktop-only{display:none}.mobile-only{display:initial}.heading-actions button{font-size:12px}.bags-wrap{gap:20px;padding:20px}.bag-grid{gap:6px}.bag{min-height:47px}}
@media(max-width:580px){.page{padding:19px 14px 24px}.topbar{padding:0 12px;gap:6px}.connection{font-size:0}.connection-dot{width:7px;height:7px}.session-picker{max-width:215px}.topbar>.small-text{display:none}.page-heading{align-items:flex-start;gap:10px}.page-heading h1{font-size:22px}.page-heading p{font-size:11px}.heading-actions{justify-content:flex-end;gap:5px}.heading-actions button{min-height:34px;padding:5px 8px;font-size:11px}.heading-actions .icon{width:15px;height:15px}.stats-strip .stat{padding:12px 9px}.stat strong{font-size:21px}.stat span{font-size:10px}.seat-toolbar{padding:12px}.legend{gap:10px;font-size:9px}.room-scroll{padding:0 12px 16px}.room{min-width:620px}.seat{min-height:48px}.room-help{font-size:10px}.classroom-layout,.classroom-layout.student,.phone-layout{gap:14px}.detail-panel{display:block}.detail-section{padding:15px}.detail-panel .detail-empty{padding:24px}.panel-head{padding:13px 15px}.panel-body{padding:16px}.stats-strip{margin-bottom:14px}.notice{font-size:11px;padding:10px 12px}.bags-wrap{grid-template-columns:1fr;gap:24px;padding:18px 20px}.bag-grid{gap:8px}.bag{min-height:48px}.bag-head{margin-bottom:10px}.bag-head p{font-size:10px}.phone-layout{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.toolbar{gap:10px}.search{width:100%;min-width:0}.toolbar .row{width:100%}td{padding:12px}th{padding:10px 12px}.tabs{gap:18px}.tabs button{font-size:12px}.timeline{padding:6px 15px}.timeline-item{grid-template-columns:1fr;gap:4px;padding:13px 0}.rules-list li{grid-template-columns:1fr;gap:5px;padding:13px 0}.calculator{padding:17px;gap:8px}.score-summary{gap:15px}.score-summary .score-value{font-size:36px}.request-item{padding:14px}.dialog-head{padding:15px 18px}.dialog-body{padding:18px}.dialog-actions{padding:13px 18px}.dialog-actions button{font-size:12px}.help-text{font-size:10px}.empty{padding:40px 20px}}
.bags-wrap{overflow-x:auto}.bags-wrap>div{min-width:0}.bag-grid{grid-template-columns:repeat(6,minmax(44px,1fr))}.room{min-width:650px}.seat-verify{font-size:8px;line-height:1.35;color:var(--amber)}.seat-verify.verified{color:var(--primary)}.seat.selected .seat-verify{color:oklch(.95 .02 140)}
.row-baselines{display:flex;align-items:center;flex-wrap:wrap;gap:5px 16px;padding:10px 18px;background:var(--surface);font-size:11px;color:var(--muted)}.row-baselines b{color:var(--ink);font-variant-numeric:tabular-nums;font-weight:650}.row-baselines .baseline-label{color:var(--ink);font-weight:550}.selection-box .row-baselines{padding:0;background:transparent}.rules-body>.row-baselines{margin-top:14px;border-radius:6px}.score-summary .score-empty{font-size:23px;white-space:nowrap}.score-unit{font-size:13px;color:var(--muted);font-weight:400}
.record-stats{margin:0;border:0;border-radius:0;border-bottom:1px solid var(--line)}.category-counts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px 20px;font-size:12px;color:var(--muted)}.category-counts>span{display:flex;justify-content:space-between;gap:8px}.category-counts b{font-weight:550;color:var(--ink);white-space:nowrap}.dossier{display:grid;gap:18px}.dossier .record-stats{flex-wrap:wrap}.evidence-preview{display:grid;gap:8px;margin-top:12px;max-width:100%;font-size:11px;overflow-wrap:anywhere}.evidence-preview img{display:block;max-width:100%;max-height:320px;object-fit:contain;border:1px solid var(--line);border-radius:5px;background:var(--surface)}.evidence-preview iframe{width:100%;height:360px;border:1px solid var(--line);border-radius:5px;background:var(--surface)}.evidence-preview details{color:var(--muted)}.evidence-preview .mono{word-break:break-all;font-size:10px}.proof-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:20px}.proof-grid .evidence-preview{margin-top:0}.dossier .request-item{overflow:hidden}
@media(max-width:580px){.category-counts{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.proof-grid{grid-template-columns:minmax(0,1fr)}.evidence-preview iframe{height:280px}.record-stats .stat{min-width:23%}}
@media(max-width:1100px){.classroom-layout.student>.detail-panel:has(.checkin-receipt){order:-1}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* ============================================================
   教师课堂操作台（console.js）
   目标：开课快、找人快、记录快、核查快。
   ============================================================ */
.tc-console{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:18px;align-items:start}
.tc-main{min-width:0}
.tc-side{position:sticky;top:14px;max-height:calc(100dvh - 28px);overflow:auto;padding:0;border-radius:var(--radius)}
.tc-side>.detail-section:last-child{border-bottom:0}
.tc-side .detail-body{padding:0}

.tc-pill{display:inline-flex;align-items:center;gap:3px;padding:1px 6px;border-radius:4px;font-size:10px;line-height:1.7;white-space:nowrap;background:var(--surface-2);color:var(--muted)}
.tc-pill.green{background:var(--primary-soft);color:var(--primary)}
.tc-pill.amber{background:var(--amber-soft);color:var(--amber)}
.tc-pill.red{background:var(--red-soft);color:var(--red)}
.tc-pill.blue{background:oklch(.955 .025 250);color:var(--blue)}
.tc-pill.purple{background:var(--purple-soft);color:var(--purple)}
.tc-pill.gray{background:var(--surface-2);color:var(--muted)}

/* 五步流程 */
.tc-steps{list-style:none;display:flex;margin:0 0 10px;padding:0;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);overflow-x:auto}
.tc-step{flex:1;min-width:138px;display:flex;gap:9px;align-items:center;padding:10px 14px;border-right:1px solid var(--line);color:var(--muted)}
.tc-step:last-child{border-right:0}
.tc-step[data-filter]{cursor:pointer}
.tc-step[data-filter]:hover{background:var(--bg)}
.tc-step b{display:block;font-size:12px;font-weight:600;color:var(--ink)}
.tc-step small{font-size:10px;color:var(--muted);white-space:nowrap}
.tc-step-dot{width:10px;height:10px;border-radius:50%;border:2px solid var(--line);background:var(--bg);flex-shrink:0}
.tc-step.done .tc-step-dot{border-color:var(--primary);background:var(--primary)}
.tc-step.active .tc-step-dot{border-color:var(--amber);background:var(--amber);box-shadow:0 0 0 3px var(--amber-soft)}
.tc-phase{display:flex;align-items:center;gap:10px;margin:-2px 2px 16px}
.tc-phase-time{font-size:11px;color:var(--muted)}

/* 概览指标 */
.tc-overview{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-bottom:16px;background:var(--bg)}
.tc-metric{display:grid;justify-items:start;gap:0;border:0;border-right:1px solid var(--line);border-radius:0;background:transparent;padding:12px 15px;text-align:left;min-height:auto}
.tc-metric:last-child{border-right:0}
.tc-metric:hover:not(:disabled){background:var(--surface)}
.tc-metric b{font-size:22px;line-height:1.15;font-variant-numeric:tabular-nums}
.tc-metric span{font-size:11px;color:var(--ink)}
.tc-metric small{font-size:10px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}
.tc-metric.amber b{color:var(--amber)}
.tc-metric.red b{color:var(--red)}
.tc-metric.quiet b{color:var(--muted)}

/* 视图切换与搜索 */
.tc-board-panel{overflow:hidden}
.tc-board-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.tc-pane-switch{display:flex;gap:3px;padding:3px;border-radius:8px;background:var(--surface)}
.tc-pane-switch button{border:0;background:transparent;min-height:32px;padding:4px 11px;font-size:12px;color:var(--muted);border-radius:6px}
.tc-pane-switch button.active{background:var(--bg);color:var(--ink);box-shadow:0 1px 3px oklch(.2 .02 140/.12);font-weight:600}
.tc-board-tools{display:flex;align-items:center;gap:8px;flex:1;justify-content:flex-end;min-width:220px}
.tc-search{flex:1;min-width:170px;max-width:330px}

/* 筛选 */
.tc-filterbar{display:flex;gap:6px;overflow-x:auto;padding:10px 16px;border-bottom:1px solid var(--line);scrollbar-width:thin}
.tc-filter{flex-shrink:0;border:1px solid transparent;background:var(--surface);color:var(--muted);border-radius:99px;min-height:30px;padding:3px 10px;font-size:12px;gap:5px}
.tc-filter b{font-size:10px;font-weight:600;color:var(--muted);font-variant-numeric:tabular-nums}
.tc-filter:hover:not(:disabled){background:var(--surface-2)}
.tc-filter.active{background:var(--primary-soft);color:var(--primary);border-color:oklch(.86 .05 140);font-weight:600}
.tc-filter.active b{color:var(--primary)}

/* 学生卡片 */
.tc-board{display:grid;grid-template-columns:repeat(auto-fill,minmax(232px,1fr));gap:9px;padding:14px 16px}
.tc-card{position:relative;display:flex;gap:10px;align-items:flex-start;border:1px solid var(--line);border-radius:9px;background:var(--bg);padding:10px 11px;cursor:pointer;transition:border-color .14s,background .14s,box-shadow .14s}
.tc-card:hover{border-color:oklch(.8 .02 140);background:var(--surface)}
.tc-card.selected{border-color:var(--primary);background:var(--primary-soft);box-shadow:inset 0 0 0 1px var(--primary)}
.tc-card.muted-card{background:oklch(.985 .003 140)}
.tc-card.muted-card .tc-card-title b{color:var(--muted)}
.tc-pick{position:absolute;top:8px;right:8px;width:16px;height:16px;margin:0;accent-color:var(--primary);opacity:.35;cursor:pointer}
.tc-card:hover .tc-pick,.tc-card.selected .tc-pick,.tc-pick:focus-visible{opacity:1}
.tc-avatar{width:34px;height:34px;flex-shrink:0;border-radius:9px;display:grid;place-items:center;background:var(--primary-soft);color:var(--primary);font-size:12px;font-weight:650;letter-spacing:.02em}
.tc-avatar.idle{background:var(--surface-2);color:var(--muted)}
.tc-avatar.small{width:26px;height:26px;border-radius:7px;font-size:10px}
.tc-card-main{display:grid;gap:5px;min-width:0;flex:1;padding-right:14px}
.tc-card-title{display:flex;align-items:baseline;justify-content:space-between;gap:6px}
.tc-card-title b{font-size:13px;line-height:1.3;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tc-card-title .mono{font-size:10px;color:var(--muted);white-space:nowrap}
.tc-card-pills{display:flex;flex-wrap:wrap;gap:4px}
.tc-card-flags{display:flex;flex-wrap:wrap;gap:4px}
.tc-flag{font-size:9px;line-height:1.6;color:var(--muted);border:1px solid var(--line);border-radius:3px;padding:0 4px;background:var(--bg)}
.tc-flag.amber{color:var(--amber);border-color:oklch(.88 .05 80)}
.tc-flag.red{color:var(--red);border-color:oklch(.88 .04 25)}
.tc-flag.purple{color:var(--purple);border-color:oklch(.88 .04 300)}
.tc-board-empty{grid-column:1/-1;padding:34px 20px;text-align:center;color:var(--muted);font-size:12px}
.tc-board-empty b{display:block;color:var(--ink);font-size:14px;margin-bottom:5px}

/* 批量操作条 */
.tc-batch{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:10px 16px;margin-bottom:12px;background:var(--primary-soft);border:1px solid oklch(.86 .05 140);border-radius:var(--radius);position:sticky;top:8px;z-index:8;box-shadow:0 4px 14px oklch(.2 .02 140/.08)}
.tc-batch-info{display:grid;gap:0;min-width:112px}
.tc-batch-info strong{font-size:12px;color:var(--primary)}
.tc-batch-info span{font-size:10px;color:var(--muted);max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tc-batch-actions{display:flex;gap:6px;flex-wrap:wrap;flex:1}
.tc-batch-hint{flex-basis:100%;margin:0;font-size:10px;color:var(--muted)}
.tc-act{min-height:30px;padding:3px 10px;font-size:12px;border-radius:6px;background:var(--bg)}
.tc-act:hover:not(:disabled){background:var(--surface-2)}
.tc-act.quiet{background:transparent;border-color:transparent;color:var(--muted);text-decoration:underline;text-underline-offset:3px}

/* 右侧详情 */
.tc-detail-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:14px 16px;border-bottom:1px solid var(--line)}
.tc-detail-id{display:flex;align-items:center;gap:10px;min-width:0}
.tc-detail-id h2{font-size:15px;line-height:1.3}
.tc-detail-id p{font-size:10px;color:var(--muted);margin-top:2px}
.tc-detail-body{display:block}
.tc-quick{display:flex;flex-wrap:wrap;gap:5px;padding:11px 16px;border-bottom:1px solid var(--line);background:var(--surface)}
.tc-quick-label{display:flex;align-items:center;font-size:10px;color:var(--muted);margin-right:2px}
.tc-multi-head{padding:16px}
.tc-multi-head h2{font-size:15px;margin-bottom:4px}
.tc-multi-list{display:grid;gap:2px;padding:4px 16px 12px}
.tc-multi-row{display:flex;align-items:center;gap:9px;padding:7px 0;border-bottom:1px solid var(--line);font-size:12px}
.tc-multi-row:last-child{border-bottom:0}
.tc-multi-row>div{flex:1;display:grid;gap:0}
.tc-multi-row small{font-size:10px;color:var(--muted)}
.tc-multi-actions{display:flex;gap:6px;flex-wrap:wrap;padding:0 16px 16px}

/* 待办 */
.tc-todo{padding:16px}
.tc-todo-head{display:flex;align-items:baseline;justify-content:space-between;gap:8px;margin-bottom:12px}
.tc-todo-head h2{font-size:14px}
.tc-todo-grid{display:grid;gap:8px}
.tc-todo-item{display:grid;justify-items:start;gap:1px;text-align:left;padding:11px 13px;border:1px solid var(--line);border-radius:8px;background:var(--bg);min-height:auto}
.tc-todo-item b{font-size:20px;line-height:1.15;font-variant-numeric:tabular-nums}
.tc-todo-item span{font-size:12px;color:var(--ink)}
.tc-todo-item small{font-size:10px;color:var(--muted)}
.tc-todo-item:hover:not(:disabled){background:var(--surface);border-color:oklch(.8 .02 140)}
.tc-todo-item.has b{color:var(--primary)}
.tc-todo-item.amber.has b{color:var(--amber)}
.tc-todo-item.red.has b{color:var(--red)}
.tc-todo-item.zero{opacity:.62}
.tc-todo-item.zero b{font-size:16px}

/* 开课引导 */
.tc-onboard{padding:28px;display:grid;gap:18px}
.tc-onboard-head{display:flex;gap:16px;align-items:flex-start}
.tc-onboard-head .icon{width:30px;height:30px;color:var(--primary);stroke-width:1.4;flex-shrink:0}
.tc-onboard-head h2{font-size:19px;margin-bottom:5px}
.tc-onboard-head p{font-size:12px;color:var(--muted);max-width:62ch}
.tc-kickoff{border-color:oklch(.86 .05 140);background:linear-gradient(180deg,var(--primary-soft),var(--bg) 65%)}
.tc-big{min-height:46px;padding:10px 20px;font-size:14px}
.tc-kickoff-steps{list-style:none;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:0;padding:0}
.tc-kickoff-steps li{display:flex;gap:8px;align-items:flex-start;font-size:11px;color:var(--muted);border-top:1px solid var(--line);padding-top:10px}
.tc-kickoff-steps b{width:18px;height:18px;flex-shrink:0;border-radius:50%;background:var(--primary);color:#fff;display:grid;place-items:center;font-size:10px}

/* 表单 */
.tc-form-row{display:grid;grid-template-columns:1.2fr .9fr .8fr;gap:12px}
.tc-presets{display:flex;gap:6px;flex-wrap:wrap}
.tc-preset{border:1px dashed var(--line);background:var(--surface);color:var(--muted);font-size:11px;min-height:28px;padding:2px 9px;border-radius:99px}
.tc-preset:hover:not(:disabled){border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
.tc-fail-list{display:grid;gap:0;margin-top:10px}
.tc-fail-list div{display:flex;justify-content:space-between;gap:12px;padding:8px 0;border-bottom:1px solid var(--line);font-size:12px}
.tc-fail-list span{color:var(--red);text-align:right}

/* 手机核查页 */
.tc-phone-panel{margin-bottom:18px}
.tc-phone-columns{display:grid;grid-template-columns:1.15fr 1fr 1fr 1fr;gap:0}
.tc-phone-col{padding:14px 16px;border-right:1px solid var(--line);min-width:0}
.tc-phone-col:last-child{border-right:0}
.tc-phone-col h3{display:flex;align-items:center;gap:6px;font-size:12px;margin-bottom:4px}
.tc-col-hint{font-size:10px;color:var(--muted);line-height:1.55;margin-bottom:10px}
.tc-phone-list{display:grid;gap:0}
.tc-phone-row{display:flex;align-items:center;gap:8px;padding:8px 0;border-bottom:1px solid var(--line);min-width:0}
.tc-phone-row:last-child{border-bottom:0}
.tc-phone-row.danger{background:var(--red-soft);border-radius:5px;padding:8px 6px;margin:0 -6px}
.tc-phone-who{flex:1;min-width:0;display:grid;gap:0}
.tc-phone-who b{font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tc-phone-who small{font-size:10px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tc-phone-actions{display:flex;gap:4px;flex-shrink:0}
.tc-phone-empty{font-size:11px;color:var(--muted);padding:8px 0}
.tc-phone-panel .panel-head{align-items:center}

@media (min-width:1600px){
  .tc-console{grid-template-columns:minmax(0,1fr) 370px}
  .tc-board{grid-template-columns:repeat(auto-fill,minmax(244px,1fr))}
}
@media (max-width:1250px){
  .tc-console{grid-template-columns:minmax(0,1fr)}
  .tc-side{position:static;max-height:none}
  .tc-phone-columns{grid-template-columns:1fr 1fr}
  .tc-phone-col:nth-child(2){border-right:0}
  .tc-phone-col:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .tc-overview{grid-template-columns:repeat(3,minmax(0,1fr))}
  .tc-metric:nth-child(3){border-right:0}
  .tc-metric:nth-child(-n+3){border-bottom:1px solid var(--line)}
}
@media (max-width:860px){
  .tc-steps{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));overflow:visible}
  .tc-step{border-bottom:1px solid var(--line)}
  .tc-step:nth-child(2n){border-right:0}
  .tc-step:last-child{border-bottom:0;grid-column:1/-1}
  .tc-overview{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tc-metric{border-right:1px solid var(--line)!important;border-bottom:1px solid var(--line)}
  .tc-metric:nth-child(2n){border-right:0!important}
  .tc-metric:last-child{border-bottom:0}
  .tc-board{grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:8px;padding:12px}
  .tc-batch{position:sticky;bottom:0;top:auto;margin-bottom:0;border-radius:var(--radius) var(--radius) 0 0;border-left:0;border-right:0;border-bottom:0;box-shadow:0 -6px 18px oklch(.2 .02 140/.12)}
  .tc-board-head{align-items:stretch}
  .tc-board-tools{min-width:0;width:100%;flex:1 1 100%;flex-wrap:wrap;justify-content:flex-start}
  .tc-board-tools>button{flex-shrink:0;white-space:nowrap}
  .tc-search{max-width:none;min-width:0;flex:1 1 100%}
  .tc-form-row{grid-template-columns:1fr 1fr}
  .tc-kickoff-steps{grid-template-columns:1fr 1fr}
  .tc-phone-columns{grid-template-columns:1fr}
  .tc-phone-col{border-right:0;border-bottom:1px solid var(--line)}
  .tc-phone-col:last-child{border-bottom:0}
  .tc-phone-col:nth-child(2){border-right:0}
  .tc-onboard{padding:20px}
  .tc-detail-body .action-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:580px){
  .tc-board{grid-template-columns:1fr}
  .tc-card-title .mono{font-size:10px}
  .tc-overview{grid-template-columns:1fr 1fr}
  .tc-metric{padding:10px 12px}
  .tc-metric b{font-size:19px}
  .tc-metric small{font-size:9px}
  .tc-batch{padding:9px 12px;gap:8px}
  .tc-batch-info{min-width:90px}
  .tc-batch-actions{gap:4px}
  .tc-act{font-size:11px;padding:3px 8px;min-height:29px}
  .tc-form-row{grid-template-columns:1fr}
  .tc-onboard-head{gap:10px}
  .tc-onboard-head h2{font-size:16px}
  .tc-kickoff-steps{grid-template-columns:1fr}
  .tc-steps{display:flex;grid-template-columns:none;overflow-x:auto;scrollbar-width:thin}
  .tc-step{flex:0 0 138px;border-right:1px solid var(--line);border-bottom:0;min-width:0}
  .tc-step:last-child{grid-column:auto;border-right:0}
  .tc-board-tools{flex-wrap:wrap}
  .tc-board-tools>button{flex-shrink:0;white-space:nowrap}
  .tc-search{flex:1 1 100%;max-width:none;min-width:0}
  .tc-filterbar{flex-wrap:wrap;overflow:visible;row-gap:6px}
  .tc-detail-id h2{font-size:14px}
  .tc-todo{padding:12px}
}

/* 右侧详情里避免重复显示姓名（卡片头部已经有） */
.tc-detail-body .student-identity{display:none}
.tc-detail-pills{display:flex;gap:4px;flex-wrap:wrap;justify-content:flex-end;flex-shrink:0}

/* 隐藏老师详情里已经由卡片头部展示的学生身份空段 */
.tc-detail-body .detail-section:has(> .student-identity):not(:has(> .pill)){display:none}

/* 课堂页内的手机袋面板 */
.tc-bag-pane{display:grid;grid-template-columns:minmax(0,1fr) 300px}
.tc-bag-main{min-width:0;border-right:1px solid var(--line)}
.tc-bag-side{padding:14px 16px;min-width:0}
.tc-bag-pane .bags-wrap{padding:18px}
@media(max-width:860px){.tc-bag-pane{grid-template-columns:1fr}.tc-bag-main{border-right:0;border-bottom:1px solid var(--line)}}

/* 课堂内嵌手机袋：在较窄的主栏里也要完整显示 6 列 */
.tc-bag-pane .bags-wrap{grid-template-columns:1fr 1fr;gap:16px;padding:14px 16px}
.tc-bag-pane .bag-grid{grid-template-columns:repeat(6,minmax(30px,1fr));gap:5px}
.tc-bag-pane .bag{min-height:40px;font-size:13px}
.tc-bag-pane .bag-head h3{font-size:12px}

/* 选中状态优先于按钮的鼠标悬停底色 */
.bag.selected:hover:not(:disabled){background:var(--primary-hover);border-color:var(--primary-hover);color:var(--bg)}
.seat.selected:hover:not(:disabled){background:var(--primary);border-color:var(--primary-hover);color:oklch(1 0 0)}

.tc-multi-hint{font-size:10px;color:var(--muted);align-self:center;margin-left:auto}

@media (max-width:860px){
  .tc-bag-pane{grid-template-columns:1fr}
  .tc-bag-main{border-right:0;border-bottom:1px solid var(--line)}
  .tc-bag-pane .bags-wrap{gap:14px;padding:12px}
}

@media (max-width:580px){
  .tc-bag-pane .bags-wrap{grid-template-columns:1fr;overflow:visible}
}

@media (max-width:580px){
  .tc-steps{mask-image:linear-gradient(90deg,#000 88%,transparent 100%);-webkit-mask-image:linear-gradient(90deg,#000 88%,transparent 100%)}
}

.tc-detail-bags{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:7px 16px;border-bottom:1px solid var(--line);background:var(--surface);font-size:11px;color:var(--muted)}


/* 已超过 5 个月保留期的附件：只留记录，不再提供下载 */
.attachment-expired { display: grid; gap: 3px; padding: 10px 12px; border: 1px dashed var(--line); border-radius: 6px; background: var(--surface); }
.attachment-expired strong { font-size: 12px; color: var(--muted); }
.attachment-expired span { font-size: 11px; line-height: 1.6; color: var(--muted); }

/* 测试版标识：横向小徽标，不改变主标题布局 */
.test-version-badge { display: inline-flex; align-items: center; justify-content: center; margin-left: 6px; padding: 0 5px; border: 1px solid oklch(.85 .06 80); border-radius: 4px; background: var(--amber-soft); color: var(--amber); font-size: 9px; font-weight: 600; line-height: 1.6; letter-spacing: .02em; vertical-align: 2px; white-space: nowrap; }

/* 密码框：在密文/明文之间切换查看 */
.password-field { position: relative; display: flex; align-items: center; width: 100%; }
.password-field > input { flex: 1; width: auto; min-width: 0; padding-right: 12px; }
.password-field .password-toggle { position: static; flex-shrink: 0; min-width: 44px; min-height: 42px; padding: 3px 8px; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); color: var(--muted); font-size: 11px; line-height: 1; }
.password-field .password-toggle:hover:not(:disabled) { border-color: var(--line); background: var(--surface-2); color: var(--ink); }
.password-field .password-toggle .icon { width: 15px; height: 15px; }
@media(max-width: 580px) { .password-field .password-toggle { min-height: 40px; min-width: 42px; } }



/* 模态框内的提示：不再被 dialog 的顶层遮住 */
.dialog-toast { margin: 0 0 12px; padding: 9px 12px; border: 1px solid var(--line); border-radius: 6px; background: var(--surface); color: var(--ink); font-size: 12px; line-height: 1.7; }
.dialog-toast.error { border-color: oklch(.86 .05 25); background: var(--red-soft); color: var(--red); }