:root{
  color-scheme:light;
  --bg:#edf3f0;
  --panel:rgba(250,252,251,.9);
  --panel-solid:#f9fbfa;
  --field:#f4f8f6;
  --field-hover:#eef4f1;
  --text:#17221f;
  --muted:#6d7d77;
  --subtle:#93a19c;
  --line:rgba(38,72,61,.13);
  --line-strong:rgba(38,72,61,.22);
  --accent:#d94f70;
  --accent-strong:#c63e61;
  --accent-soft:rgba(217,79,112,.1);
  --green:#26966e;
  --green-soft:rgba(38,150,110,.1);
  --danger:#c94261;
  --danger-soft:rgba(201,66,97,.09);
  --shadow:8px 10px 24px rgba(78,108,98,.065),-6px -6px 18px rgba(255,255,255,.72),inset 0 1px 0 rgba(255,255,255,.76);
}
*{box-sizing:border-box}
html,body{min-height:100%;margin:0}
html{background:var(--bg);scroll-behavior:smooth}
body{
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:14px;
  line-height:1.55;
  color:var(--text);
  background:
    radial-gradient(circle at 92% 2%,rgba(108,178,154,.14),transparent 31%),
    linear-gradient(90deg,rgba(38,72,61,.025) 1px,transparent 1px),
    linear-gradient(180deg,rgba(38,72,61,.025) 1px,transparent 1px),
    var(--bg);
  background-size:auto,42px 42px,42px 42px,auto;
}
body.preview-modal-open{overflow:hidden}
[hidden]{display:none!important}
button,input,textarea,select{font:inherit}
button{cursor:pointer}
button,input,textarea,select{-webkit-tap-highlight-color:transparent}
h1,h2,h3,p{margin-top:0}
h1{margin:7px 0 7px;font-size:clamp(30px,3vw,36px);line-height:1.12;letter-spacing:-1px;text-wrap:balance}
h2{margin-bottom:6px;font-size:18px;line-height:1.35;letter-spacing:-.25px}
h3{font-size:14px;line-height:1.45}
p{max-width:65ch;color:var(--muted);font-size:14px;line-height:1.65}
.manager-shell{width:min(1440px,calc(100% - 36px));margin:0 auto;padding:30px 0 64px}
.eyebrow,.section-kicker{color:var(--accent);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:11px;font-weight:800;letter-spacing:1.7px}

.login-card{width:min(440px,100%);margin:11vh auto 0;padding:32px;border:1px solid var(--line);border-radius:20px;background:var(--panel);box-shadow:18px 20px 48px rgba(78,108,98,.11),-12px -12px 34px rgba(255,255,255,.76);backdrop-filter:blur(18px) saturate(115%)}
.login-card h1{font-size:36px}
.login-card input{width:100%;margin:0;padding:12px 13px;font-size:14px}
.login-card button{width:100%;min-height:44px;padding:11px 14px;border:0;border-radius:9px;color:#fff;background:linear-gradient(135deg,#df5a79,#c83f64);font-size:14px;font-weight:800;transition:filter .16s ease,transform .12s ease}
.login-card button:hover{filter:brightness(1.04)}
.login-card button:active{transform:scale(.985)}
.login-fields{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin:14px 0 10px}
.link-login{margin-top:17px;padding-top:14px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}
.link-login summary{cursor:pointer;color:var(--text);font-weight:700}
.link-login p{margin:9px 0 5px;font-size:12px}
.login-card .secondary-login{margin-top:7px;color:var(--text);border:1px solid var(--line);background:rgba(250,252,251,.64)}
.login-card .install-action{color:var(--accent);border-color:rgba(217,79,112,.2);background:var(--accent-soft)}
.login-error{min-height:18px;margin-top:10px;color:var(--danger);font-size:12px}
.register-entry{border-color:rgba(217,79,112,.2)!important;color:var(--accent-strong)!important;background:var(--accent-soft)!important}
.register-card{width:min(700px,100%);margin:6vh auto 0;padding:30px;border:1px solid var(--line);border-radius:20px;background:var(--panel);box-shadow:18px 20px 48px rgba(78,108,98,.11),-12px -12px 34px rgba(255,255,255,.76);backdrop-filter:blur(18px) saturate(115%)}
.auth-card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;margin-bottom:22px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.auth-card-head h1{margin-top:7px;font-size:30px}
.auth-card-head p{margin-bottom:0}
.auth-back{flex:0 0 auto;min-height:38px;padding:8px 12px;border:1px solid var(--line);border-radius:9px;color:var(--text);background:var(--field);font-size:13px;font-weight:750}
.auth-back:hover{border-color:var(--line-strong);background:var(--field-hover)}
.register-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 14px}
.register-grid label{min-width:0}
.register-note{display:flex;align-items:flex-start;gap:11px;margin:2px 0 16px;padding:12px 14px;border:1px solid rgba(38,150,110,.15);border-radius:10px;color:var(--muted);background:var(--green-soft);font-size:13px;line-height:1.55}
.register-note strong{flex:0 0 auto;color:var(--green)}
.register-submit{width:100%;min-height:46px;padding:11px 16px;border:0;border-radius:9px;color:#fff;background:linear-gradient(135deg,#df5a79,#c83f64);font-weight:800;transition:filter .16s ease,transform .12s ease}
.register-submit:hover{filter:brightness(1.04)}
.register-submit:active{transform:scale(.99)}
.register-submit:disabled{cursor:wait;opacity:.65}
.register-success{padding:30px 12px 12px;text-align:center}
.register-success-mark{display:grid;place-items:center;width:50px;height:50px;margin:0 auto 16px;border-radius:50%;color:#fff;background:var(--green);box-shadow:0 8px 20px rgba(38,150,110,.2);font-size:25px;font-weight:900}
.register-success h2{font-size:21px}
.register-success p{margin:0 auto 20px}

.manager-header{display:flex;align-items:flex-start;justify-content:space-between;gap:22px;margin-bottom:18px;padding:0 3px}
.manager-header h1{font-size:32px}
.manager-header p{margin-bottom:0;font-size:13px}
.header-actions{display:flex;align-items:center;justify-content:flex-end;gap:8px;flex-wrap:wrap}
.connectivity,.pwa-note{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:12px}
.pwa-note{margin:13px 0 3px}
.connectivity-dot{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 0 4px var(--green-soft)}
.connectivity-dot.offline{background:var(--danger);box-shadow:0 0 0 4px var(--danger-soft)}

.panel{margin-bottom:14px;padding:20px;border:1px solid var(--line);border-radius:15px;background:var(--panel);box-shadow:var(--shadow);backdrop-filter:blur(15px) saturate(112%)}
.workspace-switcher{display:grid;grid-template-columns:minmax(190px,250px) minmax(0,1fr) auto;align-items:end;gap:18px;padding:13px 16px}
.workspace-switcher label{margin:0}
.permission-note{padding-bottom:10px;color:var(--muted);font-size:12px;text-align:right;white-space:nowrap}
.module-tabs{display:flex;gap:4px;min-width:0;padding:4px;border:1px solid var(--line);border-radius:11px;background:rgba(246,250,248,.76);overflow-x:auto;scrollbar-width:none}
.module-tabs::-webkit-scrollbar{display:none}
.module-tab{flex:0 0 auto;min-height:38px;padding:8px 13px;border:1px solid transparent;border-radius:8px;color:var(--muted);background:transparent;font-size:13px;font-weight:750;white-space:nowrap;transition:background-color .15s ease,color .15s ease,border-color .15s ease,transform .12s ease}
.module-tab:hover{color:var(--text);background:rgba(127,148,139,.07)}
.module-tab:active{transform:scale(.98)}
.module-tab.active{color:#bd365a;border-color:rgba(217,79,112,.14);background:#fff;box-shadow:3px 4px 10px rgba(78,108,98,.08)}

.settings-panel{display:grid;grid-template-columns:minmax(165px,.5fr) minmax(0,1.5fr);gap:22px;align-items:end}
.settings-fields{display:grid;grid-template-columns:minmax(145px,.55fr) minmax(230px,1.45fr) auto;gap:9px}
input,textarea,select{width:100%;border:1px solid var(--line);border-radius:9px;padding:10px 11px;color:var(--text);background:var(--field);outline:none;box-shadow:inset 2px 2px 5px rgba(68,97,87,.055),inset -2px -2px 5px rgba(255,255,255,.72);transition:border-color .16s ease,box-shadow .16s ease,background-color .16s ease}
input:hover,textarea:hover,select:hover{background:var(--field-hover)}
input:focus,textarea:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(217,79,112,.1)}
textarea{resize:vertical;line-height:1.58}
label{display:block;margin-bottom:12px}
label>span{display:block;margin-bottom:6px;color:#40504a;font-size:13px;font-weight:700}
label small{display:block;margin-top:5px;color:var(--subtle);font-size:12px}
.workspace{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:14px;align-items:start}
.panel-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:13px}
.panel-head p,.preview-panel p{margin-bottom:0}
.field-grid{display:grid;gap:11px}
.field-grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.field-grid.three{grid-template-columns:1.2fr .8fr .8fr}
.actions,.record-tools{display:flex;gap:8px;flex-wrap:wrap}
.button{min-height:39px;padding:9px 13px;border:1px solid var(--line);border-radius:9px;color:var(--text);background:rgba(250,252,251,.72);font-size:13px;font-weight:750;white-space:nowrap;box-shadow:3px 4px 10px rgba(78,108,98,.045),-2px -2px 7px rgba(255,255,255,.66);transition:filter .16s ease,background-color .16s ease,border-color .16s ease,transform .12s ease}
.button:hover{border-color:var(--line-strong);background:#fff}
.button:active{transform:scale(.98)}
.button:disabled,input:disabled,textarea:disabled,select:disabled{cursor:not-allowed;opacity:.48}
.button.primary{color:#fff;border-color:transparent;background:linear-gradient(135deg,#df5a79,#c83f64);box-shadow:0 6px 14px rgba(201,63,100,.15)}
.button.primary:hover{filter:brightness(1.04)}
.button.ghost{color:var(--muted)}
.button.small{min-height:34px;padding:7px 10px;font-size:12px}
.button.danger{color:var(--danger);border-color:rgba(201,66,97,.18);background:var(--danger-soft);box-shadow:none}
.button:focus-visible,.module-tab:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,.row-delete:focus-visible,.preview-close:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.preview-panel{position:sticky;top:14px;padding:17px}
.preview-panel-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.preview-close,.preview-trigger{display:none}
.preview-backdrop{display:none}
.preview{max-height:620px;min-height:320px;padding:17px;border:1px solid var(--line);border-radius:12px;background:linear-gradient(150deg,rgba(255,255,255,.74),rgba(240,246,243,.72));line-height:1.62;overflow:auto}
.preview-empty{display:flex;min-height:280px;align-items:center;justify-content:center;padding:20px;color:var(--subtle);font-size:13px;text-align:center}
.preview-title{font-size:20px;font-weight:850;letter-spacing:-.35px}
.preview-meta{display:flex;gap:8px;flex-wrap:wrap;margin:6px 0 14px;color:var(--subtle);font-size:11px}
.preview-section{padding:11px 0;border-top:1px solid var(--line)}
.preview-section h3{margin:0 0 6px;color:var(--accent);font-size:13px}
.preview-line{display:grid;grid-template-columns:minmax(48px,auto) minmax(0,1fr);gap:9px;margin:5px 0;color:var(--muted);font-size:13px}
.preview-line strong{color:var(--text)}

.records{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}
.record{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:11px;padding:14px;border:1px solid var(--line);border-radius:11px;background:rgba(255,255,255,.4)}
.record-title{display:flex;gap:7px;align-items:center;flex-wrap:wrap;font-weight:800}
.record-meta,.record-summary{margin-top:6px;color:var(--muted);font-size:12px}
.record-actions{display:flex;align-items:flex-start;justify-content:flex-end;gap:5px;flex-wrap:wrap}
.record-actions .button{min-height:32px;padding:6px 8px;font-size:11px}
.status{padding:3px 7px;border-radius:6px;font-size:11px}
.status.published{color:var(--green);background:var(--green-soft)}
.status.draft{color:#9b6b22;background:rgba(188,139,66,.1)}
.status.archived{color:var(--muted);background:rgba(64,80,74,.06)}
.empty{grid-column:1/-1;padding:36px 16px;color:var(--muted);text-align:center;border:1px dashed var(--line-strong);border-radius:11px;background:rgba(255,255,255,.24)}

.manager-module{width:100%;min-width:0}.schedule-panel{width:100%;max-width:none;margin-right:auto;margin-left:auto}
.schedule-table-wrap{max-width:100%;max-height:min(560px,62dvh);overflow:auto;border:1px solid var(--line);border-radius:11px;background:rgba(255,255,255,.34)}
.schedule-table{width:100%;min-width:790px;border-collapse:collapse;table-layout:fixed}
.schedule-table th{position:sticky;top:0;z-index:1;padding:9px;color:var(--muted);background:#eef4f1;font-size:11px;text-align:left;border-bottom:1px solid var(--line)}
.schedule-table td{padding:4px;border-top:1px solid var(--line)}
.schedule-table input{min-width:0;padding:7px 8px;border-color:transparent;background:transparent;box-shadow:none}
.schedule-table input:focus{border-color:rgba(217,79,112,.38);background:#fff}
.schedule-table th:nth-child(1){width:15%}
.schedule-table th:nth-child(2),.schedule-table th:nth-child(3){width:12%}
.schedule-table th:nth-child(4){width:28%}
.schedule-table th:nth-child(5){width:28%}
.schedule-table th:last-child{width:42px}
.row-delete{width:30px;height:30px;border:0;border-radius:7px;color:var(--danger);background:var(--danger-soft)}
.schedule-empty{margin-top:11px}
.file-button{display:inline-flex;align-items:center;margin:0;cursor:pointer}
.file-button input{display:none}
.focused-panel{width:100%;max-width:none;margin-right:auto;margin-left:auto;padding:26px}
.section-kicker{margin-bottom:8px;letter-spacing:1.4px}
.compact-field{max-width:280px}
.override-panel{max-width:none}
.override-list{display:grid;gap:7px;margin-top:17px}
.override-item{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 0;border-top:1px solid var(--line);color:var(--muted);font-size:12px}
.override-item strong{color:var(--text);font-variant-numeric:tabular-nums}
.teacher-todo-workspace{display:grid;grid-template-columns:minmax(300px,.72fr) minmax(420px,1.28fr);gap:14px;align-items:start}
.teacher-todo-editor{position:sticky;top:14px}.teacher-todo-list-panel{min-width:0}
.teacher-inline-check{display:flex;align-items:center;gap:7px;margin:0;color:var(--muted);font-size:12px;white-space:nowrap}.teacher-inline-check input{width:auto;accent-color:var(--accent)}.teacher-inline-check span{display:inline;margin:0;color:inherit;font-size:inherit}
.teacher-todo-list{display:grid;gap:8px;max-height:min(650px,68dvh);overflow:auto;overscroll-behavior:contain;scrollbar-gutter:stable}
.teacher-todo-item{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:12px;align-items:start;padding:13px;border:1px solid var(--line);border-radius:11px;background:rgba(255,255,255,.4)}
.teacher-todo-item.is-done{opacity:.58}.teacher-todo-item.is-done .teacher-todo-title{text-decoration:line-through}
.teacher-todo-check{min-width:62px;padding:7px 8px;border:1px solid rgba(217,79,112,.2);border-radius:8px;color:var(--accent);background:var(--accent-soft);font:inherit;font-size:11px;font-weight:800;cursor:pointer}
.teacher-todo-title{display:flex;align-items:center;gap:7px;flex-wrap:wrap;color:var(--text);font-size:14px;font-weight:850}.teacher-todo-title span{padding:3px 6px;border-radius:6px;color:var(--danger);background:var(--danger-soft);font-size:10px}
.teacher-todo-item p{margin:6px 0 0;color:var(--muted);font-size:13px;white-space:pre-wrap}.teacher-todo-item small{display:block;margin-top:7px;color:var(--subtle);font-size:11px}.teacher-todo-actions{display:flex;gap:5px;flex-wrap:wrap;justify-content:flex-end}
.teacher-public-panel,.teacher-activity-panel{width:100%;max-width:none;margin-right:auto;margin-left:auto}.teacher-info-tabs{display:flex;gap:6px;margin:14px 0;overflow-x:auto;scrollbar-width:none}.teacher-info-tabs::-webkit-scrollbar{display:none}
.teacher-info-tab{flex:0 0 auto;min-height:34px;padding:7px 11px;border:1px solid var(--line);border-radius:8px;color:var(--muted);background:var(--field);font:inherit;font-size:12px;font-weight:750;cursor:pointer;transition:border-color .16s ease,color .16s ease,background-color .16s ease,transform .12s ease}.teacher-info-tab:hover{border-color:var(--accent);color:var(--accent)}.teacher-info-tab:active{transform:translateY(1px)}.teacher-info-tab.active{border-color:rgba(217,79,112,.2);color:#bd365a;background:#fff}
.teacher-public-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;max-height:min(670px,70dvh);overflow:auto;overscroll-behavior:contain;scrollbar-gutter:stable}
.teacher-public-item{display:grid;grid-template-rows:auto 1fr auto;gap:10px;padding:15px;border:1px solid var(--line);border-radius:11px;background:rgba(255,255,255,.4)}.teacher-public-item>div{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.teacher-public-item>div span{padding:3px 6px;border-radius:6px;color:var(--accent);background:var(--accent-soft);font-size:10px;font-weight:800}.teacher-public-item h3{margin:0;color:var(--text);font-size:14px}.teacher-public-item p{margin:0;color:var(--muted);font-size:13px;line-height:1.75;white-space:pre-wrap}.teacher-public-item .button{justify-self:start}
.teacher-activity-feed{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.teacher-activity-card{display:grid;grid-template-rows:auto auto 1fr auto auto;gap:9px;padding:16px;border:1px solid var(--line);border-radius:11px;background:rgba(255,255,255,.4)}.teacher-activity-card-head{display:flex;align-items:center;justify-content:space-between;gap:10px}.teacher-activity-card-head span{padding:3px 6px;border-radius:6px;color:var(--accent);background:var(--accent-soft);font-size:10px;font-weight:800}.teacher-activity-card-head time{color:var(--subtle);font:700 10px ui-monospace,SFMono-Regular,Consolas,monospace}.teacher-activity-card h3{margin:0;color:var(--text);font-size:15px}.teacher-activity-card p{margin:0;color:var(--muted);font-size:12px;white-space:pre-wrap}.teacher-activity-copy{display:grid;gap:3px;padding:9px;border-left:2px solid var(--accent);background:var(--accent-soft)}.teacher-activity-copy span{color:var(--text);font-size:11px}.teacher-activity-card .button{justify-self:start}
.teacher-event-workspace{display:grid;grid-template-columns:minmax(560px,1.15fr) minmax(380px,.85fr);gap:14px;align-items:start}.teacher-event-editor{min-width:0}.teacher-event-list-panel{position:sticky;top:14px;min-width:0}.event-photo-picker input{padding:8px}.event-photo-preview{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin:-2px 0 12px}.event-photo-preview figure{margin:0;min-width:0}.event-photo-preview img{display:block;width:100%;aspect-ratio:4/3;border-radius:8px;object-fit:cover}.event-photo-preview figcaption{margin-top:4px;color:var(--subtle);font-size:9px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.teacher-event-list{display:grid;gap:8px;max-height:min(720px,72dvh);overflow:auto;scrollbar-gutter:stable}.teacher-event-item{padding:13px;border:1px solid var(--line);border-radius:10px;background:rgba(255,255,255,.4)}.teacher-event-item-head{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}.teacher-event-item-head>div{display:flex;align-items:center;gap:7px;flex-wrap:wrap}.teacher-event-item-head strong{font-size:14px}.teacher-event-item-head span{padding:3px 6px;border-radius:6px;color:var(--accent);background:var(--accent-soft);font-size:9px;font-weight:800}.teacher-event-item-head time{color:var(--subtle);font:700 9px ui-monospace,SFMono-Regular,Consolas,monospace}.teacher-event-item p{margin:8px 0;color:var(--muted);font-size:12px;white-space:pre-wrap}.teacher-event-item small{display:block;margin-bottom:9px;color:var(--subtle);font-size:10px}.event-print-sheet{display:none}
.toast{position:fixed;left:50%;bottom:26px;z-index:50;max-width:min(440px,calc(100% - 30px));padding:11px 15px;border-radius:9px;color:#fff;background:var(--green);font-size:13px;font-weight:750;opacity:0;pointer-events:none;transform:translate(-50%,12px);transition:opacity .2s ease,transform .2s ease}
.toast.show{opacity:1;transform:translate(-50%,0)}
.toast.error{background:var(--danger)}

@media(max-width:980px){
  .workspace-switcher{grid-template-columns:minmax(180px,230px) minmax(0,1fr)}
  .permission-note{grid-column:1/-1;padding:0;text-align:left}
  .workspace{grid-template-columns:1fr}
  .preview-panel{position:static}
  .settings-panel{grid-template-columns:1fr}
  .settings-fields{grid-template-columns:minmax(130px,.5fr) minmax(220px,1fr) auto}
  .records{grid-template-columns:1fr}
  .teacher-todo-workspace,.teacher-event-workspace{grid-template-columns:1fr}.teacher-todo-editor,.teacher-event-list-panel{position:static}.teacher-public-list{grid-template-columns:1fr}.teacher-activity-feed{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:720px){
  .manager-shell{width:min(100% - 20px,1180px);padding:18px 0 42px}
  .manager-header{align-items:flex-start;margin-bottom:14px}
  .manager-header h1{font-size:27px;letter-spacing:-.9px}
  .manager-header p{font-size:13px}
  .header-actions{max-width:152px}
  .connectivity{width:100%;justify-content:flex-end}
  .panel,.login-card,.register-card{padding:16px;border-radius:13px}
  .login-card{margin-top:7vh}
  .register-card{margin-top:3vh}
  .auth-card-head{display:block;margin-bottom:18px;padding-bottom:15px}
  .auth-card-head h1{font-size:27px}
  .auth-back{margin-top:12px}
  .register-grid,.login-fields,.workspace-switcher,.settings-fields,.field-grid.two,.field-grid.three{grid-template-columns:1fr}
  .workspace-switcher{gap:11px;padding:13px}
  .module-tabs{width:100%;order:3}
  .module-tab{flex:1 0 auto;min-height:38px}
  input,textarea,select{font-size:16px}
  .permission-note{order:2}
  .panel-head{display:block}
  .panel-head>.button,.panel-head>.record-tools{margin-top:10px}
  .actions .button{flex:1}
  .record{grid-template-columns:1fr}
  .record-actions{justify-content:flex-start}
  .record-tools{justify-content:flex-start}
  .focused-panel{padding:18px}
  .schedule-panel{padding:15px}
  .schedule-table-wrap{max-height:58dvh}
  .preview-trigger{display:inline-flex}
  .preview-backdrop{display:block;position:fixed;inset:0;z-index:30;background:rgba(23,34,31,.38);opacity:0;pointer-events:none;backdrop-filter:blur(3px);transition:opacity .18s ease}
  .preview-backdrop.preview-open{opacity:1;pointer-events:auto}
  .preview-panel{position:fixed;top:auto;left:10px;right:10px;bottom:10px;z-index:31;max-height:min(720px,calc(100dvh - 40px));margin:0;padding:16px;background:var(--panel-solid);visibility:hidden;opacity:0;overflow:hidden;transform:translateY(24px) scale(.985);transition:opacity .18s ease,transform .2s ease,visibility .2s}
  .preview-panel.preview-open{visibility:visible;opacity:1;transform:translateY(0) scale(1)}
  .preview-panel-head{margin-bottom:10px}
  .preview-close{display:inline-flex;flex:0 0 auto;align-items:center;justify-content:center;width:36px;height:36px;border:1px solid var(--line);border-radius:9px;color:var(--text);background:var(--field);font-size:23px;line-height:1}
  .preview{max-height:62dvh;min-height:260px}
  .override-item{align-items:flex-start;flex-direction:column}
  .teacher-todo-list,.teacher-public-list,.teacher-event-list{max-height:none}.teacher-todo-item{grid-template-columns:1fr}.teacher-todo-actions{justify-content:flex-start}.teacher-todo-check{justify-self:start}.teacher-activity-feed{grid-template-columns:1fr}.event-photo-preview{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:430px){
  .manager-header{display:block}
  .header-actions{max-width:none;justify-content:flex-start;margin-top:12px}
  .connectivity{width:auto;justify-content:flex-start}
  .module-tabs{margin-right:-3px;margin-left:-3px}
  .module-tab{padding-right:10px;padding-left:10px}
}
.module-picker-trigger,.module-picker-backdrop,.module-picker-head,.mobile-sheet-trigger,.mobile-sheet-close,.mobile-sheet-backdrop{display:none}
.module-picker-trigger:focus-visible,.module-picker-head button:focus-visible,.mobile-sheet-trigger:focus-visible,.mobile-sheet-close:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media(max-width:720px){
  body.module-picker-open,body.mobile-sheet-open{overflow:hidden}
  .manager-shell{padding-top:calc(18px + env(safe-area-inset-top));padding-bottom:calc(42px + env(safe-area-inset-bottom))}
  .manager-header{display:grid;gap:10px}
  .manager-header h1{font-size:25px;line-height:1.25;overflow-wrap:anywhere}
  .header-actions{max-width:none;justify-content:space-between;margin-top:0}
  .connectivity{width:auto;justify-content:flex-start}
  .workspace-switcher{gap:9px;backdrop-filter:none}
  .permission-note{order:2;text-align:left;white-space:normal}
  .module-picker-trigger{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:3px 12px;align-items:center;order:3;width:100%;min-height:66px;padding:11px 14px;border:1px solid rgba(217,79,112,.24);border-radius:11px;color:var(--text);background:var(--panel-solid);text-align:left;box-shadow:3px 4px 10px rgba(78,108,98,.05)}
  .module-picker-trigger>span{grid-column:1/-1;color:var(--muted);font-size:11px;font-weight:700}
  .module-picker-trigger strong{min-width:0;font-size:17px;line-height:1.25}
  .module-picker-trigger b{padding:6px 9px;border-radius:7px;color:var(--accent-strong);background:var(--accent-soft);font-size:12px;white-space:nowrap}
  .module-picker-backdrop.is-open,.mobile-sheet-backdrop.is-open{display:block;position:fixed;inset:0;background:rgba(23,34,31,.42);backdrop-filter:blur(3px)}
  .module-picker-backdrop.is-open{z-index:60}
  .module-tabs{position:fixed;right:0;bottom:0;left:0;z-index:61;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;width:100%;max-height:calc(90dvh - env(safe-area-inset-top));margin:0;padding:16px 14px calc(18px + env(safe-area-inset-bottom));border-radius:18px 18px 0 0;background:var(--panel-solid);box-shadow:0 -10px 30px rgba(23,34,31,.14);overflow-y:auto;visibility:hidden;opacity:0;pointer-events:none;transform:translateY(18px);transition:opacity .18s ease,transform .18s ease,visibility .18s}
  .module-tabs.is-open{visibility:visible;opacity:1;pointer-events:auto;transform:translateY(0)}
  .module-picker-head{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;padding:1px 2px 9px}
  .module-picker-head strong{font-size:17px}
  .module-picker-head button{width:38px;height:38px;border:1px solid var(--line);border-radius:9px;color:var(--text);background:var(--field);font-size:23px}
  .module-tab{width:100%;min-height:54px;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:var(--field);color:var(--text);text-align:left;white-space:normal}
  .module-tab.active{border-color:rgba(217,79,112,.36);background:var(--accent-soft);color:var(--accent-strong)}
  .mobile-sheet-trigger{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;min-height:70px;margin:0 0 12px;padding:12px 15px;border:1px solid var(--line-strong);border-radius:12px;color:var(--text);background:var(--panel-solid);text-align:left;box-shadow:var(--shadow)}
  .mobile-sheet-trigger-primary{border-color:rgba(217,79,112,.25);background:linear-gradient(100deg,var(--accent-soft),var(--panel-solid) 65%)}
  .mobile-sheet-trigger span{display:grid;gap:2px;min-width:0}
  .mobile-sheet-trigger strong{font-size:15px;line-height:1.3}
  .mobile-sheet-trigger small{color:var(--muted);font-size:11px;line-height:1.4}
  .mobile-sheet-trigger b{flex:0 0 auto;padding:7px 10px;border-radius:8px;color:#fff;background:var(--accent-strong);font-size:12px}
  .mobile-sheet-trigger:disabled{opacity:.5}
  .mobile-sheet-backdrop.is-open{z-index:70}
  .mobile-sheet-panel{display:none}
  .mobile-sheet-panel.is-mobile-open{position:fixed;right:0;bottom:0;left:0;z-index:71;display:block;width:min(100%,640px);max-height:calc(100dvh - env(safe-area-inset-top) - 18px);margin:0 auto;padding:20px 16px calc(24px + env(safe-area-inset-bottom));border-radius:18px 18px 0 0;background:var(--panel-solid);box-shadow:0 -12px 32px rgba(23,34,31,.16);overflow-y:auto;overscroll-behavior:contain}
  .mobile-sheet-panel .panel-head,.mobile-sheet-panel .mobile-sheet-head{padding-right:46px}
  .mobile-sheet-close{position:absolute;top:15px;right:15px;z-index:1;display:grid;place-items:center;width:40px;height:40px;border:1px solid var(--line);border-radius:9px;color:var(--text);background:var(--field);font-size:23px;line-height:1}
  .preview-backdrop{z-index:80}
  .preview-panel{z-index:81}
  .toast{z-index:90}
  .schedule-table-wrap{max-height:none;overflow:visible;border:0;background:transparent}
  .schedule-table{display:block;width:100%;min-width:0}
  .schedule-table thead{display:none}
  .schedule-table tbody{display:grid;gap:10px}
  .schedule-table tr{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;padding:13px;border:1px solid var(--line);border-radius:11px;background:var(--panel-solid)}
  .schedule-table td{display:block;min-width:0;padding:0;border:0}
  .schedule-table td:nth-child(1),.schedule-table td:nth-child(4),.schedule-table td:nth-child(5),.schedule-table td:nth-child(6){grid-column:1/-1}
  .schedule-table td:nth-child(6){justify-self:end}
  .schedule-table td:not(:last-child)::before{display:block;margin-bottom:4px;color:var(--muted);font-size:11px;font-weight:700}
  .schedule-table td:nth-child(1)::before{content:"星期 / 日期"}
  .schedule-table td:nth-child(2)::before{content:"开始"}
  .schedule-table td:nth-child(3)::before{content:"结束"}
  .schedule-table td:nth-child(4)::before{content:"活动"}
  .schedule-table td:nth-child(5)::before{content:"备注"}
  .schedule-table input{width:100%;min-height:42px;padding:8px 10px;border-color:var(--line);background:var(--field)}
  .schedule-table .row-delete{width:auto;min-height:36px;padding:6px 12px}
}
/* 教师 PWA 的移动端层级：当前功能、主要操作、内容记录依次分明。 */
@media(max-width:720px){
  .manager-app{--muted:#52625c;--subtle:#60716a}
  .manager-header h1{color:#17221f;font-weight:900}
  .workspace-switcher{border-color:#d6e1db;background:#fff;box-shadow:0 6px 20px rgba(38,72,61,.07)}
  .workspace-switcher label>span{color:#34473e;font-weight:800}
  .permission-note{justify-self:start;padding:6px 9px;border-radius:7px;color:#315848;background:#e9f3ed;font-size:11px;font-weight:750}
  .permission-note:empty{display:none}
  .module-picker-trigger{min-height:78px;padding:12px 14px;border:1px solid #203c35;border-radius:12px;color:#fff;background:#203c35;box-shadow:0 7px 16px rgba(32,60,53,.18)}
  .module-picker-trigger>span{color:#d5e5dd;font-size:12px}
  .module-picker-trigger strong{color:#fff;font-size:19px;font-weight:900}
  .module-picker-trigger b{color:#203c35;background:#f3faf6;font-size:12px}
  .module-picker-trigger:active,.mobile-sheet-trigger:active{transform:scale(.99)}
  .module-tab.active{border-color:#b52e54;color:#fff;background:#b52e54;box-shadow:0 4px 10px rgba(181,46,84,.15)}
  .mobile-sheet-trigger{border-color:#d4dfd9;background:#fff;box-shadow:0 4px 12px rgba(38,72,61,.055)}
  .mobile-sheet-trigger strong{font-size:16px;font-weight:850}
  .mobile-sheet-trigger small{color:#52625c;font-size:12px}
  .mobile-sheet-trigger:not(.mobile-sheet-trigger-primary) b{color:#34473e;background:#eaf0ec}
  .mobile-sheet-trigger-primary{min-height:78px;border-color:#b52e54;color:#fff;background:#b52e54;box-shadow:0 9px 19px rgba(181,46,84,.2)}
  .mobile-sheet-trigger-primary strong{color:#fff}
  .mobile-sheet-trigger-primary small{color:#fff1f5}
  .mobile-sheet-trigger-primary b{color:#9f2447;background:#fff}
  .mobile-sheet-trigger-primary:disabled{opacity:1;border-color:#d5dfd9;color:#52625c;background:#e8eeea;box-shadow:none}
  .mobile-sheet-trigger-primary:disabled strong,.mobile-sheet-trigger-primary:disabled small{color:#52625c}
  .mobile-sheet-trigger-primary:disabled b{color:#52625c;background:#f5f8f6}
  .records-panel,.teacher-todo-list-panel,.teacher-event-list-panel,.teacher-public-panel,.teacher-activity-panel,.schedule-panel,.focused-panel{border-color:#d6e1db;background:#fff;box-shadow:0 5px 16px rgba(38,72,61,.055)}
  .records-panel>.panel-head,.teacher-todo-list-panel>.panel-head,.teacher-event-list-panel>.panel-head,.teacher-public-panel>.panel-head,.teacher-activity-panel>.panel-head,.schedule-panel>.panel-head{margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid #e0e8e3}
  .records-panel h2,.teacher-todo-list-panel h2,.teacher-event-list-panel h2,.teacher-public-panel h2,.teacher-activity-panel h2,.schedule-panel h2,.focused-panel h2{color:#17221f;font-size:19px;font-weight:900}
  .record,.teacher-todo-item,.teacher-event-item,.teacher-public-item,.teacher-activity-card,.schedule-table tr{border-color:#dce6e0;background:#f5f9f6;box-shadow:none}
  .record-title,.teacher-todo-title,.teacher-event-item-head strong,.teacher-public-item h3,.teacher-activity-card h3{color:#17221f}
  .mobile-sheet-panel.is-mobile-open{background:#fff}
  .mobile-sheet-panel h2{padding-left:10px;border-left:4px solid #b52e54;color:#17221f;font-size:20px}
  .schedule-table td:not(:last-child)::before{color:#52625c;font-size:12px}
}
.event-print-hint{margin:10px 0 0;padding:10px 12px;border-left:3px solid var(--accent);border-radius:0 8px 8px 0;background:var(--accent-soft);color:var(--muted);font-size:12px;line-height:1.65}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition-duration:.01ms!important}}
@media print{
  @page{size:A4;margin:14mm}
  body{color:#18221f;background:#fff!important}
  body>*:not(.event-print-sheet){display:none!important}
  .event-print-sheet{display:block!important;width:100%;font-family:"Microsoft YaHei","Noto Sans SC",sans-serif;color:#18221f}
  .event-print-sheet header{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;padding-bottom:14px;border-bottom:2px solid #d94f70}.event-print-sheet header h1{margin:0;font-size:25px}.event-print-sheet header>div:last-child{display:grid;gap:3px;text-align:right}.event-print-sheet header strong{font-size:11px}.event-print-sheet header b{font-size:16px}
  .event-print-meta{display:grid!important;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin:16px 0}.event-print-meta div{padding:10px;border:1px solid #d9e0dc;background:#f6f9f7}.event-print-meta span{display:block;color:#6d7a75;font-size:9px}.event-print-meta strong{display:block;margin-top:4px;font-size:11px}
  .event-print-sheet>section{margin-top:16px;break-inside:avoid}.event-print-sheet h2{margin:0 0 7px;padding-left:8px;border-left:3px solid #d94f70;font-size:14px}.event-print-sheet p{max-width:none;margin:0;min-height:48px;padding:11px;border:1px solid #d9e0dc;color:#26332e;font-size:11px;line-height:1.75;white-space:pre-wrap}
  .event-print-photos{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.event-print-photos figure{margin:0;break-inside:avoid}.event-print-photos img{display:block;width:100%;max-height:230px;object-fit:contain;border:1px solid #d9e0dc}.event-print-photos figcaption{margin-top:3px;color:#6d7a75;font-size:8px;text-align:center}
  .event-print-sheet footer{display:flex;justify-content:space-between;margin-top:22px;padding-top:10px;border-top:1px solid #d9e0dc;color:#6d7a75;font-size:9px}
}