:root{--bg:#f4f8f8;--panel:#fff;--line:#dce8e7;--text:#203337;--muted:#6d7f82;--teal:#148f8a;--teal-dark:#0a6d6a;--teal-soft:#e6f5f3;--blue:#3b82f6;--orange:#e78713;--red:#de4f55;--shadow:0 8px 30px rgba(27,65,65,.07);--radius:18px}*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;color:var(--text);background:var(--bg)}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer}.app-shell{min-height:100vh;display:flex}.sidebar{width:248px;position:fixed;inset:0 auto 0 0;background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column;padding:18px 14px;z-index:40}.brand{height:72px;display:flex;align-items:center;gap:13px;padding:0 4px 14px;border-bottom:1px solid #edf2f2}.brand-mark{width:50px;height:50px;border-radius:14px;background:linear-gradient(145deg,#0d8e8a,#237ab1);color:#fff;display:grid;place-items:center;font-size:28px;box-shadow:0 6px 14px rgba(20,143,138,.18)}.brand strong{display:block;font-size:18px}.brand span{display:block;font-size:12px;color:var(--muted);margin-top:3px}.nav-list{display:grid;gap:7px;padding-top:16px;overflow:auto}.nav-item{border:0;background:transparent;text-align:left;padding:12px 14px;border-radius:12px;display:flex;align-items:center;gap:12px;color:#486064}.nav-item:hover{background:#f3f8f8}.nav-item.active{background:var(--teal-soft);color:var(--teal-dark);font-weight:700}.nav-icon{width:24px;text-align:center}.sidebar-footer{margin-top:auto;padding:16px 8px 2px;display:grid;gap:9px;color:var(--muted);font-size:12px}.link-button{border:0;background:none;padding:0;text-align:left;color:var(--teal-dark)}.main-area{margin-left:248px;width:calc(100% - 248px);min-width:0}.topbar{min-height:96px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;padding:20px 32px;gap:16px;position:sticky;top:0;z-index:25}.topbar h1{font-size:26px;margin:0 0 4px}.topbar p{margin:0;color:var(--muted);font-size:14px}.top-summary{margin-left:auto;text-align:right;color:var(--muted);font-size:13px}.top-summary strong{display:block;color:var(--text);font-size:15px}.page-root{padding:28px 32px 60px;max-width:1700px;margin:0 auto}.menu-toggle{display:none}.icon-button{border:1px solid var(--line);background:#fff;border-radius:10px;width:40px;height:40px}.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}.card-title{font-size:17px;font-weight:700;margin:0}.muted{color:var(--muted)}.sidebar-scrim{display:none}.toast-root{position:fixed;right:24px;bottom:24px;z-index:120;display:grid;gap:10px}
@media(max-width:900px){.sidebar{transform:translateX(-100%);transition:.2s}.sidebar.open{transform:translateX(0)}.sidebar-scrim.show{display:block;position:fixed;inset:0;background:rgba(20,40,42,.25);z-index:35}.main-area{margin-left:0;width:100%}.menu-toggle{display:inline-grid;place-items:center}.topbar{padding:16px 18px}.page-root{padding:20px 18px 50px}}
.dashboard-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(320px,.85fr);gap:20px}.overview-card{min-height:310px;background:linear-gradient(135deg,#fff 55%,#eef9f7)}.section-head{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:18px}.section-head h2{font-size:19px;margin:0}.eyebrow{margin:0 0 5px;color:var(--teal-dark);font-size:12px;font-weight:700;letter-spacing:.06em}.pill{background:var(--teal-soft);color:var(--teal-dark);border-radius:999px;padding:7px 11px;font-size:12px}.overview-metrics{display:flex;align-items:center;gap:28px;margin-top:8px}.big-metric{display:grid;grid-template-columns:54px auto;grid-template-rows:auto auto;column-gap:14px;align-items:center}.metric-icon{grid-row:1/3;width:54px;height:54px;border-radius:16px;background:var(--teal-soft);display:grid;place-items:center;color:var(--teal-dark);font-weight:700}.big-metric strong{font-size:38px;line-height:1}.big-metric small{color:var(--muted);margin-top:4px}.mini-metrics{display:flex;flex-wrap:wrap;gap:10px}.mini-metrics span{background:#fff;border:1px solid var(--line);border-radius:12px;padding:9px 12px;color:var(--muted);font-size:13px}.mini-metrics b{color:var(--text);font-size:17px;margin-right:4px}.quick-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}.quick-link{border:1px solid var(--line);background:#fff;padding:10px 14px;border-radius:11px}.quick-link:hover{border-color:#9ed5d1;color:var(--teal-dark)}.attendance-card{min-height:310px}.stat-grid{display:grid;gap:12px}.stat-grid.four{grid-template-columns:repeat(4,1fr)}.stat{border:1px solid var(--line);border-radius:15px;padding:18px 10px;text-align:center;background:#fff}.stat strong{font-size:28px;display:block}.stat span{font-size:13px;color:var(--muted)}.stat.teal strong{color:var(--teal)}.stat.blue strong{color:var(--blue)}.stat.orange strong{color:var(--orange)}.stat.red strong{color:var(--red)}.helper{font-size:12px;color:var(--muted);margin:16px 0 0}.todo-card,.notice-card{min-height:330px}.birthday-card{grid-column:1/-1}.item-list{display:grid;gap:4px}.todo-item{display:flex;align-items:center;gap:10px;padding:12px 0;border-bottom:1px solid #edf2f2}.todo-item:last-child{border-bottom:0}.check-button{width:20px;height:20px;border-radius:6px;border:2px solid #9db5b6;background:#fff;flex:0 0 auto}.check-button:hover{border-color:var(--teal)}.item-main{min-width:0;flex:1;display:grid;gap:4px}.item-main strong{font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.item-main>span{font-size:12px;color:var(--muted)}.badge{display:inline-block;border-radius:999px;padding:2px 7px;font-size:10px;margin-left:6px}.badge.danger{background:#fdebed;color:#b73c43}.badge.warning{background:#fff3dc;color:#9b6205}.badge.muted-badge{background:#eef2f2;color:#6d7f82}.btn{border:1px solid var(--line);background:#fff;border-radius:10px;padding:9px 14px}.btn:hover{border-color:#abcaca}.btn.primary{background:var(--teal);color:#fff;border-color:var(--teal)}.btn.small{padding:7px 10px;font-size:12px}.text-btn,.icon-text{border:0;background:none;color:var(--teal-dark);padding:4px;font-size:12px}.danger-text{color:var(--red)}.notice-row{border:0;background:#fff;text-align:left;width:100%;display:flex;align-items:flex-start;gap:10px;padding:12px 4px;border-bottom:1px solid #edf2f2}.notice-row:hover{background:#f7fbfb}.notice-row .dot{width:8px;height:8px;border-radius:50%;background:var(--teal);margin-top:6px}.notice-row span:last-child{display:grid;gap:4px}.notice-row strong{font-size:14px}.notice-row small{color:var(--muted)}.birthday-list{display:grid;grid-template-columns:repeat(3,minmax(180px,1fr));gap:12px}.birthday-row{display:flex;align-items:center;gap:10px;border:1px solid var(--line);border-radius:13px;padding:12px}.avatar{width:36px;height:36px;border-radius:12px;background:var(--teal-soft);color:var(--teal-dark);display:grid;place-items:center;font-weight:700}.birthday-row>span:last-child{display:grid;gap:3px}.birthday-row small{color:var(--muted);font-size:12px}.empty{color:var(--muted);text-align:center;padding:30px 10px}.modal-backdrop{position:fixed;inset:0;background:rgba(31,57,59,.38);z-index:100;display:grid;place-items:center;padding:24px}.modal{width:min(760px,100%);max-height:88vh;background:#fff;border-radius:20px;box-shadow:0 24px 70px rgba(18,50,52,.28);overflow:hidden;display:flex;flex-direction:column}.modal.sm{width:min(540px,100%)}.modal.lg{width:min(980px,100%)}.modal.xl{width:min(1180px,100%)}.modal-head{height:76px;padding:0 24px;display:flex;align-items:center;border-bottom:1px solid var(--line);gap:12px}.modal-head h2{font-size:20px;margin:0;flex:1}.modal-close{border:0;background:none;font-size:30px;color:#789092;line-height:1}.modal-body{padding:24px;overflow:auto}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.field{display:grid;gap:7px}.field.full,.form-actions.full{grid-column:1/-1}.field span{font-size:13px;color:#4b6063;font-weight:600}.field input,.field select,.field textarea{width:100%;border:1px solid #ccdcdc;border-radius:10px;padding:10px 12px;background:#fff;outline:none}.field input:focus,.field select:focus,.field textarea:focus{border-color:#65b8b3;box-shadow:0 0 0 3px rgba(20,143,138,.08)}.form-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:6px}.notice-detail{display:grid;gap:16px}.notice-meta{color:var(--muted);font-size:13px}.notice-detail p{margin:0;line-height:1.8}.danger-outline{color:var(--red);border-color:#efc7ca}.toast{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:12px;padding:12px 16px;min-width:220px;transition:.2s}.toast.error{border-color:#efc7ca;color:#a93b42}.toast.out{opacity:0;transform:translateY(5px)}
@media(max-width:1100px){.dashboard-grid{grid-template-columns:1fr}.birthday-card{grid-column:auto}.birthday-list{grid-template-columns:repeat(2,minmax(170px,1fr))}}@media(max-width:640px){.page-root{padding:16px 12px 44px}.topbar{padding:14px 12px}.topbar h1{font-size:21px}.top-summary{display:none}.card{padding:16px;border-radius:15px}.stat-grid.four{grid-template-columns:repeat(2,1fr)}.overview-metrics{align-items:flex-start;flex-direction:column}.birthday-list{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.field.full,.form-actions.full{grid-column:auto}.modal-backdrop{padding:10px}.modal{max-height:94vh}.modal-body{padding:18px}.modal-head{height:64px;padding:0 18px}}
.data-card{padding:0;overflow:hidden}.toolbar{padding:20px;display:flex;align-items:flex-start;justify-content:space-between;gap:18px;border-bottom:1px solid var(--line)}.toolbar h2{margin-bottom:6px}.toolbar p{margin:0;font-size:12px}.toolbar-actions{display:flex;align-items:center;justify-content:flex-end;gap:8px;flex-wrap:wrap}.search-box{height:40px;display:flex;align-items:center;gap:7px;border:1px solid var(--line);border-radius:10px;padding:0 10px;background:#fff;min-width:250px}.search-box input{border:0;outline:none;min-width:0;width:100%;background:transparent}.table-wrap{overflow:auto;max-width:100%}.data-table{width:100%;border-collapse:collapse;min-width:900px}.data-table th,.data-table td{padding:12px 14px;border-bottom:1px solid #edf2f2;text-align:left;font-size:13px;vertical-align:middle}.data-table th{background:#f7fafa;color:#607477;font-weight:700;position:sticky;top:0;z-index:2}.data-table tbody tr:hover{background:#fbfdfd}.truncate-cell{max-width:190px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.row-actions{display:flex;gap:5px;white-space:nowrap}
@media(max-width:900px){.toolbar{flex-direction:column}.toolbar-actions{justify-content:flex-start;width:100%}.search-box{min-width:min(100%,300px);flex:1}}@media(max-width:640px){.toolbar-actions .btn{padding:8px 10px}.search-box{min-width:100%}}
.attendance-page{display:grid;gap:20px}.attendance-hero{max-width:1100px}.attendance-editor>.stat-grid{max-width:460px;margin-bottom:18px}.attendance-editor .stat{padding:14px 10px}.attendance-editor .stat strong{font-size:26px}.attendance-controls{display:grid;grid-template-columns:minmax(260px,440px) 220px;gap:20px;align-items:end;margin-bottom:6px}.quick-control{display:grid;gap:7px}.quick-control>span{font-size:13px;color:#4b6063;font-weight:600}.attendance-hint{margin:8px 0 12px;color:var(--muted);font-size:13px}.attendance-list{border:1px solid var(--line);border-radius:15px;overflow:hidden}.attendance-row{display:grid;grid-template-columns:110px 110px minmax(260px,1fr);gap:12px;align-items:center;padding:11px 14px;border-bottom:1px solid #edf2f2;background:#fff}.attendance-row:last-child{border-bottom:0}.student-name{font-size:14px}.attendance-row select,.attendance-note{height:40px;border:1px solid #d4e1e0;border-radius:10px;padding:0 11px;background:#fff}.attendance-note{min-width:0}.sticky-actions{position:sticky;bottom:-24px;background:linear-gradient(180deg,rgba(255,255,255,.92),#fff 35%);display:flex;justify-content:flex-end;gap:10px;padding:20px 0 3px;margin-top:5px}.date-open{display:flex;gap:8px}.date-open input{border:1px solid var(--line);border-radius:10px;padding:8px 10px}.history-list{display:grid}.history-row{border:0;border-bottom:1px solid #edf2f2;background:#fff;display:grid;grid-template-columns:1fr auto 24px;gap:14px;align-items:center;text-align:left;padding:15px 4px}.history-row:hover{background:#f7fbfb}.history-row>span:first-child{display:grid;gap:3px}.history-row small{color:var(--muted)}.history-stats{display:flex;gap:10px;font-size:12px}.teal-text{color:var(--teal)}.blue-text{color:var(--blue)}.orange-text{color:var(--orange)}.red-text{color:var(--red)}.small-text{font-size:12px;margin:4px 0 0}
@media(max-width:700px){.attendance-controls{grid-template-columns:1fr}.attendance-row{grid-template-columns:90px 100px minmax(190px,1fr)}.attendance-list{overflow-x:auto}.date-open{width:100%;flex-wrap:wrap}.history-row{grid-template-columns:1fr 20px}.history-stats{grid-column:1/-1;grid-row:2}.section-head{align-items:flex-start;flex-wrap:wrap}}
.grades-page{display:grid;gap:20px}.grade-head{padding:0}.grade-toolbar{border-bottom:0}.select-control{height:40px;border:1px solid var(--line);border-radius:10px;padding:0 34px 0 10px;background:#fff}.subject-stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px;padding:0 20px 20px}.subject-stat{border:1px solid var(--line);border-radius:15px;padding:16px;background:linear-gradient(145deg,#fff,#f8fbfb);display:grid;gap:5px}.subject-stat>span{font-weight:700}.subject-stat>strong{font-size:30px;color:var(--teal-dark)}.subject-stat>small{color:var(--muted)}.subject-stat>div{display:flex;flex-wrap:wrap;gap:7px;margin-top:7px}.subject-stat>div b{font-size:11px;font-weight:600;background:#eef5f5;border-radius:999px;padding:4px 7px;color:#52686b}.score-head{padding:18px 20px 0}.score-table th small{font-weight:400;color:var(--muted)}.score-input{width:82px;height:34px;border:1px solid #d5e2e1;border-radius:8px;padding:0 8px}.ranking-card{overflow:hidden}.rank-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0 22px}.rank-item{display:grid;grid-template-columns:34px 1fr auto;gap:10px;align-items:center;padding:10px 0;border-bottom:1px solid #edf2f2;font-size:13px}.rank-no{width:26px;height:26px;border-radius:8px;background:var(--teal-soft);color:var(--teal-dark);display:grid;place-items:center;font-weight:700}.rank-item b{color:var(--teal-dark)}.subject-editor{display:grid;gap:8px}.subject-edit-row{display:grid;grid-template-columns:1.5fr repeat(3,1fr) 52px;gap:8px}.subject-edit-row input{min-width:0;border:1px solid #ccdcdc;border-radius:9px;padding:9px}.section-head.tight{margin-bottom:10px}.action-spacer{flex:1}.empty-state{text-align:center;padding:60px 20px}.empty-icon{font-size:46px;color:var(--teal);margin-bottom:10px}.empty-state h2{margin:0 0 8px}.empty-state p{color:var(--muted);margin:0 0 20px}
@media(max-width:800px){.subject-edit-row{grid-template-columns:1fr 1fr}.subject-edit-row .icon-text{justify-self:start}.rank-grid{grid-template-columns:1fr}}@media(max-width:520px){.subject-edit-row{grid-template-columns:1fr}.grade-toolbar .toolbar-actions{align-items:stretch}.grade-toolbar .select-control{width:100%}}
.module-stack{display:grid;gap:20px}.mini-field{display:flex;align-items:center;gap:5px;font-size:12px;color:var(--muted)}.mini-field input{width:60px;height:38px;border:1px solid var(--line);border-radius:9px;padding:0 7px}.blackboard{width:min(460px,80%);margin:4px auto 28px;border-radius:10px;background:#385f5c;color:#fff;text-align:center;padding:11px;letter-spacing:.3em;box-shadow:0 5px 12px rgba(39,77,74,.15)}.seat-grid{display:grid;grid-template-columns:repeat(var(--seat-cols),minmax(120px,1fr));gap:12px;overflow:auto;padding-bottom:8px}.seat-card{border:1px solid var(--line);border-radius:13px;padding:10px;background:#fff;display:grid;gap:7px;min-width:120px;transition:.15s}.seat-card:hover{border-color:#9bcac7}.seat-no{font-size:11px;color:var(--muted)}.seat-card select{min-width:0;border:1px solid #d5e2e1;border-radius:8px;padding:7px;background:#fff}.seat-card small{color:var(--muted);min-height:14px}.seat-grid.swap-mode .seat-card{cursor:pointer}.seat-card.selected-seat{border:2px solid var(--teal);background:var(--teal-soft)}.duty-grid{display:grid;grid-template-columns:repeat(5,minmax(180px,1fr));gap:12px;overflow:auto}.duty-card{border:1px solid var(--line);border-radius:15px;padding:14px;min-width:180px;display:grid;gap:12px}.duty-day{display:flex;align-items:center;justify-content:space-between}.duty-students{display:flex;gap:6px;flex-wrap:wrap}.duty-students span{background:var(--teal-soft);color:var(--teal-dark);border-radius:999px;padding:5px 8px;font-size:12px}.duty-students em{font-style:normal;color:var(--muted);font-size:12px}.duty-card p{margin:0;color:var(--muted);font-size:12px;line-height:1.6}.checkbox-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:18px}.check-option{border:1px solid var(--line);border-radius:10px;padding:9px;display:flex;align-items:center;gap:7px;font-size:13px}.duty-task{margin-top:5px}.committee-grid{padding:20px;display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px}.committee-card{border:1px solid var(--line);border-radius:15px;padding:16px;display:grid;gap:5px}.role-label{font-size:12px;color:var(--teal-dark);font-weight:700}.committee-card strong{font-size:18px}.committee-card small{color:var(--muted)}.committee-card>div{display:flex;gap:5px;margin-top:5px}.wide-cell{max-width:280px;min-width:180px;line-height:1.6}.timetable-card{overflow:hidden}.timetable-table{width:100%;border-collapse:separate;border-spacing:0;min-width:900px}.timetable-table th,.timetable-table td{border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:9px;vertical-align:top}.timetable-table thead th{background:#f2f8f7;text-align:center}.timetable-table tbody th{width:90px;background:#f8fbfb;text-align:center}.timetable-table tbody th strong,.timetable-table tbody th small{display:block}.timetable-table tbody th small{color:var(--muted);margin-top:3px;font-weight:400}.timetable-table input{width:100%;border:0;background:transparent;text-align:center;padding:6px;outline:none}.timetable-table input:first-child{font-weight:700;color:var(--text)}.timetable-table input:focus{background:var(--teal-soft);border-radius:7px}.timetable-table .cell-note{font-size:11px;color:var(--muted)}
@media(max-width:800px){.checkbox-grid{grid-template-columns:repeat(2,1fr)}}
@media print{body{background:#fff}.sidebar,.topbar,.toolbar-actions,.btn,.text-btn,.sidebar-scrim,.toast-root{display:none!important}.main-area{margin:0;width:100%}.page-root{padding:0;max-width:none}.card{box-shadow:none;border:0;padding:0}.seat-grid{overflow:visible;gap:8px}.seat-card{break-inside:avoid}.timetable-table{min-width:0;font-size:11px}.timetable-table input{font-size:11px}.section-head{margin-bottom:12px}}

/* V2.1 global polish */
:root{--bg:#f3f7f7;--panel:#fff;--line:#d6e3e2;--text:#1c3236;--muted:#607579;--teal:#0fa29d;--teal-dark:#08736f;--teal-soft:#e2f5f3;--blue:#2f7de1;--orange:#d97a08;--red:#d84850;--shadow:0 6px 22px rgba(26,65,65,.055);--radius:15px}
button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{outline:3px solid rgba(15,162,157,.22);outline-offset:2px}
.ui-icon{display:block;flex:0 0 auto}
.sidebar{width:228px;padding:14px 10px}.main-area{margin-left:228px;width:calc(100% - 228px)}
.brand{height:64px;padding:0 5px 12px;gap:10px}.brand-mark{width:44px;height:44px;border-radius:12px;font-size:0}.brand strong{font-size:17px}.brand span{font-size:11px}
.nav-list{gap:4px;padding-top:12px}.nav-item{padding:10px 12px;border-radius:10px;gap:10px;font-size:14px}.nav-icon{width:22px;display:grid;place-items:center}.nav-item.active{box-shadow:inset 3px 0 0 var(--teal)}
.sidebar-footer{padding:12px 8px 2px;gap:8px;border-top:1px solid #edf2f2}.footer-action{display:flex;align-items:center;gap:8px;border:0;background:transparent;padding:7px 0;color:var(--teal-dark);font-size:13px;text-align:left}.footer-action-icon{display:none}
.topbar{min-height:74px;padding:12px 26px;gap:14px}.topbar h1{font-size:22px;margin-bottom:2px}.topbar p{font-size:12px}.topbar-title{min-width:180px}.top-summary{margin-left:auto;display:grid;gap:2px;text-align:right}.top-summary strong{font-size:13px}.top-summary span{font-size:11px}.top-actions{display:flex;align-items:center;gap:9px;border-left:1px solid var(--line);padding-left:14px}.save-status{display:flex;align-items:center;gap:6px;color:var(--teal-dark);font-size:12px;white-space:nowrap}.save-status.error{color:var(--red)}.top-data-btn{display:flex;align-items:center;gap:7px;padding:8px 11px;font-size:12px}.page-root{padding:20px 26px 46px;max-width:1720px}.card{border-radius:15px;box-shadow:var(--shadow)}
.btn{border-color:#d2dfde;border-radius:9px;padding:8px 12px;background:#fff}.btn:hover{border-color:#8fc5c1;background:#fbfefe}.btn.primary{background:var(--teal);border-color:var(--teal)}.danger-outline{background:#fff}
.modal{border-radius:16px}.modal-head{height:66px;padding:0 20px}.modal-body{padding:20px}.modal-close{font-size:25px}
.toast{border-radius:10px;box-shadow:0 8px 24px rgba(22,59,61,.12)}
@media(max-width:1100px){.top-summary{display:none}}
@media(max-width:900px){.sidebar{width:228px}.main-area{margin-left:0;width:100%}.top-actions{margin-left:auto}.save-status{display:none}.page-root{padding:18px}}
@media(max-width:620px){.top-data-btn span:last-child{display:none}.top-data-btn{width:38px;height:38px;display:grid;place-items:center;padding:0}.topbar{padding:10px 12px}.page-root{padding:14px 10px 38px}}

/* V2.1 dashboard */
.dashboard-v21{display:grid;gap:16px}.metric-cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.metric-card{border:1px solid var(--line);background:#fff;border-radius:14px;padding:16px;display:flex;align-items:center;gap:12px;text-align:left;box-shadow:var(--shadow);min-height:88px}.metric-card:hover{border-color:#9bcac7;transform:translateY(-1px)}.metric-card-icon{width:42px;height:42px;border-radius:12px;background:var(--teal-soft);color:var(--teal-dark);display:grid;place-items:center}.metric-card>span:last-child{display:grid;gap:4px}.metric-card strong{font-size:24px;line-height:1}.metric-card small{font-size:11px;color:var(--muted)}
.dashboard-main-grid{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(320px,.8fr);gap:16px}.compact-card{padding:16px}.compact-card .section-head{margin-bottom:10px}.compact-card .section-head>div{display:flex;align-items:center;gap:9px}.compact-card .section-head h2{font-size:16px}.section-count{font-size:11px;color:var(--muted);background:#f1f6f5;border-radius:999px;padding:4px 7px}.compact-card .todo-item{padding:10px 0}.compact-card .notice-row{padding:10px 3px}
.attendance-strip{padding:14px 16px;display:grid;grid-template-columns:minmax(230px,.55fr) 1fr;gap:20px;align-items:center}.attendance-strip-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.attendance-strip-head>div{display:grid;gap:4px}.attendance-strip-head strong{font-size:15px}.attendance-strip-head span{font-size:11px;color:var(--muted)}.attendance-strip-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.attendance-strip-stats button{border:0;background:#f8fbfb;border-radius:10px;padding:9px;display:grid;grid-template-columns:auto auto;justify-content:center;gap:8px;align-items:baseline}.attendance-strip-stats b{font-size:21px}.attendance-strip-stats span{font-size:11px;color:var(--muted)}
.dashboard-lower-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(300px,.65fr);gap:16px}.tool-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}.tool-tile{border:1px solid var(--line);background:#fff;border-radius:11px;padding:11px;display:flex;gap:10px;text-align:left;align-items:center}.tool-tile:hover{border-color:#98cbc7;background:#fbfefe}.tool-tile>.ui-icon{color:var(--teal-dark)}.tool-tile>span{display:grid;gap:2px}.tool-tile strong{font-size:13px}.tool-tile small{font-size:10px;color:var(--muted)}.birthday-compact-list{display:grid;gap:7px}.birthday-compact{border:0;background:#fff;display:flex;gap:10px;align-items:center;text-align:left;padding:7px;border-radius:9px}.birthday-compact:hover{background:#f5faf9}.birthday-compact>span:last-child{display:grid;gap:2px}.birthday-compact strong{font-size:13px}.birthday-compact small{font-size:11px;color:var(--muted)}
/* notification template */
.notice-template{display:grid;gap:14px}.template-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.student-picker-head,.preview-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.student-picker-head>div:first-child,.preview-head>div:first-child{display:flex;align-items:center;gap:8px}.student-picker-head span,.preview-head span{font-size:11px;color:var(--muted)}.student-picker-tools{display:flex;align-items:center;gap:7px}.student-picker-tools input{height:34px;border:1px solid var(--line);border-radius:8px;padding:0 10px;min-width:200px}.student-picker-list{max-height:190px;overflow:auto;border:1px solid var(--line);border-radius:11px;padding:8px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}.student-pick{display:flex;align-items:center;gap:7px;border:1px solid #edf2f2;border-radius:8px;padding:7px 8px}.student-pick>span{display:grid;gap:2px;min-width:0}.student-pick strong{font-size:12px}.student-pick small{font-size:10px;color:var(--muted)}.notice-preview{width:100%;resize:vertical;border:1px solid var(--line);border-radius:10px;padding:12px;line-height:1.7;background:#fbfdfd;outline:none}.preview-head>div:last-child{display:flex;gap:5px}
@media(max-width:1150px){.metric-cards{grid-template-columns:repeat(2,1fr)}.dashboard-main-grid,.dashboard-lower-grid{grid-template-columns:1fr}.attendance-strip{grid-template-columns:1fr}.student-picker-list{grid-template-columns:repeat(3,1fr)}}
@media(max-width:680px){.metric-cards{grid-template-columns:1fr}.tool-grid{grid-template-columns:repeat(2,1fr)}.attendance-strip-stats{grid-template-columns:repeat(2,1fr)}.template-grid{grid-template-columns:1fr}.student-picker-head{align-items:flex-start;flex-direction:column}.student-picker-tools{width:100%;flex-wrap:wrap}.student-picker-tools input{min-width:100%}.student-picker-list{grid-template-columns:repeat(2,1fr)}}

/* V2.1 duty table */
.duty-v21{gap:16px}.duty-table{width:100%;border-collapse:collapse;min-width:920px}.duty-table th,.duty-table td{padding:12px 14px;border-bottom:1px solid #edf2f2;text-align:left;font-size:13px;vertical-align:middle}.duty-table th{background:#f6f9f9;color:#597074;font-size:12px}.duty-table tbody tr{cursor:pointer}.duty-table tbody tr:hover{background:#f8fbfb}.duty-table tbody tr.active{background:#eff9f8}.duty-group-pill{display:inline-flex;align-items:center;border-radius:999px;background:#e8f1ff;color:#3672c7;padding:4px 9px;font-size:11px;white-space:nowrap}.duty-member-cell{max-width:420px}.duty-note-cell{max-width:240px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.duty-progress{border:0;background:none;padding:0;display:flex;align-items:center;gap:9px;min-width:120px}.duty-progress>span{width:78px;height:6px;border-radius:999px;background:#e7eeee;overflow:hidden}.duty-progress i{display:block;height:100%;background:var(--teal);border-radius:999px}.duty-progress b{font-size:11px;color:var(--muted)}.duty-detail{padding:16px}.duty-detail .section-head{margin-bottom:10px}.duty-detail .section-head>div{display:flex;align-items:center;gap:8px}.duty-detail-members{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}.duty-detail-members>span:not(.muted){font-size:11px;background:#f1f6f5;border-radius:999px;padding:5px 8px}.duty-task-chips{display:flex;flex-wrap:wrap;gap:8px}.duty-task-chip{border:1px solid #cfe5e2;background:#edf8f7;color:#577174;border-radius:999px;padding:7px 11px}.duty-task-chip.done{background:var(--teal);border-color:var(--teal);color:#fff}.duty-detail-note{margin:12px 0 0;color:var(--muted);font-size:12px}.duty-v21 .toolbar{padding:16px}.duty-v21 .toolbar h2{margin:3px 0 4px}.duty-v21 .toolbar p{margin:0}.duty-v21 .checkbox-grid{max-height:270px;overflow:auto;padding-right:3px}

/* V2.1 student profile */
.student-name-link{border:0;background:none;padding:0;color:var(--teal-dark);font-weight:700;text-align:left}.student-name-link:hover{text-decoration:underline}.student-profile{display:grid;gap:14px}.profile-hero{display:grid;grid-template-columns:56px 1fr auto;gap:13px;align-items:center;padding:2px 0 10px}.profile-avatar{width:56px;height:56px;border-radius:16px;background:var(--teal-soft);color:var(--teal-dark);display:grid;place-items:center;font-size:24px;font-weight:700}.profile-hero h3{margin:0 0 4px;font-size:21px}.profile-hero p{margin:0;color:var(--muted);font-size:12px}.profile-grid.two{display:grid;grid-template-columns:1fr 1fr;gap:12px}.profile-panel{border:1px solid var(--line);border-radius:12px;padding:14px;background:#fff}.profile-panel h4{margin:0 0 11px;font-size:14px}.profile-panel-head{display:flex;justify-content:space-between;align-items:center;gap:10px}.profile-panel-head>span{font-size:11px;color:var(--muted)}.profile-dl{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:0}.profile-dl>div{display:grid;gap:3px}.profile-dl>div.wide{grid-column:1/-1}.profile-dl dt{font-size:10px;color:var(--muted)}.profile-dl dd{margin:0;font-size:12px;line-height:1.5}.profile-attendance{display:grid;grid-template-columns:repeat(4,1fr);gap:7px}.profile-attendance span{background:#f7faf9;border-radius:9px;padding:9px;text-align:center;font-size:10px;color:var(--muted)}.profile-attendance b{display:block;font-size:20px;margin-bottom:2px}.profile-exam-main{display:grid;grid-template-columns:1fr 92px;gap:10px;align-items:stretch}.profile-exam-main>div:first-child{display:grid;grid-template-columns:1fr auto;gap:3px 10px;align-items:end}.profile-exam-main>div:first-child strong{grid-column:1/-1;font-size:13px}.profile-exam-main>div:first-child small{color:var(--muted)}.profile-exam-main>div:first-child b{font-size:24px;color:var(--teal-dark)}.profile-rank{background:var(--teal-soft);border-radius:10px;padding:9px;display:grid;place-items:center}.profile-rank span{font-size:10px;color:var(--muted)}.profile-rank strong{font-size:25px;color:var(--teal-dark)}.profile-subjects{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px}.profile-subject{background:#f5f8f8;border-radius:8px;padding:6px 8px;display:flex;align-items:baseline;gap:4px}.profile-subject span{font-size:10px;color:var(--muted)}.profile-subject strong{font-size:13px}.profile-subject small{font-size:9px;color:var(--muted)}.profile-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}.profile-tags>span:not(.muted){background:var(--teal-soft);color:var(--teal-dark);border-radius:999px;padding:5px 8px;font-size:11px}.profile-position{display:grid;grid-template-columns:48px 1fr;gap:8px;padding:8px 0;border-top:1px solid #edf2f2}.profile-position span{font-size:10px;color:var(--muted)}.profile-position strong{font-size:12px}.profile-contact-list{display:grid}.profile-contact-list>div:not(.empty){display:grid;grid-template-columns:88px 110px 1fr;gap:10px;padding:8px 0;border-top:1px solid #edf2f2;align-items:start}.profile-contact-list time,.profile-contact-list span{font-size:11px;color:var(--muted)}.profile-contact-list strong{font-size:12px}.empty.compact{padding:18px 8px}
@media(max-width:720px){.profile-grid.two{grid-template-columns:1fr}.profile-hero{grid-template-columns:48px 1fr}.profile-hero .btn{grid-column:1/-1;justify-self:start}.profile-avatar{width:48px;height:48px}.profile-contact-list>div:not(.empty){grid-template-columns:80px 1fr}.profile-contact-list span{grid-column:1/-1}.profile-attendance{grid-template-columns:repeat(2,1fr)}}

/* V2.1 data center */
.footer-action-icon{display:inline-grid;place-items:center;width:20px;height:20px;flex:0 0 20px}
.data-center{display:grid;gap:14px}.data-summary-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.data-summary-grid>div{border:1px solid var(--line);border-radius:12px;background:#f9fbfb;padding:13px 14px;display:grid;gap:5px}.data-summary-grid span{font-size:11px;color:var(--muted)}.data-summary-grid strong{font-size:18px}.data-center-panel{border:1px solid var(--line);border-radius:13px;padding:14px 15px;background:#fff}.data-center-panel h3{margin:0;font-size:14px}.data-center-panel .section-head{margin-bottom:11px}.align-left{justify-content:flex-start}.snapshot-list{display:grid}.snapshot-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;border-top:1px solid #edf2f2}.snapshot-row:first-child{border-top:0}.snapshot-row>div{display:grid;gap:3px}.snapshot-row strong{font-size:12px}.snapshot-row small{font-size:10px;color:var(--muted)}.danger-zone{display:flex;align-items:center;justify-content:space-between;gap:16px;background:#fffafa;border-color:#f1d7d9}.danger-zone p{margin:5px 0 0;font-size:11px;color:var(--muted)}.danger-outline{color:var(--red);border-color:#e6b8bc}.danger-outline:hover{border-color:var(--red);background:#fff5f5}
@media(max-width:720px){.data-summary-grid{grid-template-columns:repeat(2,1fr)}.danger-zone{align-items:flex-start;flex-direction:column}}

/* Network authentication */
.app-shell.locked{filter:blur(2px);pointer-events:none;user-select:none}
.auth-screen{position:fixed;inset:0;z-index:3000;background:linear-gradient(135deg,#edf9f7 0%,#f6f9fb 55%,#e9f4fb 100%);display:grid;place-items:center;padding:24px}
.auth-card{width:min(430px,100%);background:#fff;border:1px solid #dfe9e8;border-radius:20px;box-shadow:0 24px 70px rgba(26,62,68,.16);padding:34px}
.auth-logo{width:56px;height:56px;border-radius:15px;display:grid;place-items:center;background:#e4f7f4;color:#0c8f8d;margin-bottom:18px}
.auth-card h1{font-size:24px;margin:0 0 8px}.auth-card p{color:#687b80;line-height:1.7;margin:0 0 20px}.auth-card label{display:grid;gap:8px;font-weight:650;color:#334b50}.auth-card input{height:48px;border:1px solid #cedddb;border-radius:11px;padding:0 14px;font:inherit;font-size:18px;letter-spacing:.15em}.auth-submit{width:100%;height:46px;margin-top:14px}.auth-error{min-height:22px;color:#c43c3c;font-size:13px;margin-top:10px}.auth-message{background:#fff3e5;color:#8b5b16;border:1px solid #f1d4a6;border-radius:10px;padding:10px 12px;margin-bottom:15px;line-height:1.55}.auth-card small{display:block;color:#89999c;margin-top:18px;line-height:1.6}.save-status.syncing{color:#8a6a16}

/* V2.2 privacy, timeline and mobile workflow */
.profile-timeline{display:grid;margin-top:4px}.timeline-item{display:grid;grid-template-columns:92px 1fr;gap:12px;padding:11px 0;border-top:1px solid #edf2f2;position:relative}.timeline-item:first-child{border-top:0}.timeline-item time{font-size:11px;color:var(--muted)}.timeline-item>div{display:grid;gap:4px}.timeline-item strong{font-size:12px}.timeline-item span{font-size:11px;color:var(--muted);line-height:1.55}.timeline-item>div:before{content:"";position:absolute;left:80px;top:17px;width:6px;height:6px;border-radius:50%;background:var(--teal)}
.mobile-forced .main-area{margin-left:0;width:100%}.mobile-forced .sidebar{transform:translateX(-100%);width:min(86vw,290px);transition:.2s}.mobile-forced .sidebar.open{transform:translateX(0)}.mobile-forced .menu-toggle{display:inline-grid;place-items:center}.mobile-forced .top-summary{display:none}.mobile-forced .page-root{padding:14px 10px 88px}.mobile-forced .topbar{min-height:68px;padding:10px 12px}.mobile-forced .card{border-radius:14px;padding:14px}.mobile-forced .btn,.mobile-forced .nav-item,.mobile-forced .text-btn{min-height:44px}.mobile-forced .toolbar-actions{width:100%;align-items:stretch}.mobile-forced .toolbar-actions>.btn{flex:1 1 auto}.mobile-forced .table-wrap{overflow:auto;-webkit-overflow-scrolling:touch}
@media(max-width:720px){.btn,.nav-item,.text-btn,.check-button{min-height:44px}.timeline-item{grid-template-columns:78px 1fr}.timeline-item>div:before{left:68px}.profile-dl{grid-template-columns:1fr}.profile-dl>div.wide{grid-column:auto}.topbar-title p{display:none}.topbar{min-height:66px}.data-table th,.data-table td{white-space:nowrap}.modal-body{overscroll-behavior:contain}.auth-card{padding:24px 20px}}

/* V2.2 network data center */
.modal.xl{width:min(1120px,calc(100vw - 36px))}.data-center-loading{min-height:260px;display:grid;place-items:center;color:var(--muted)}.network-data-center{display:grid;gap:14px}.network-status-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:9px}.network-status-grid>div{border:1px solid var(--line);border-radius:12px;background:#f9fbfb;padding:12px;display:grid;align-content:start;gap:5px;min-width:0}.network-status-grid span,.network-status-grid small{font-size:10px;color:var(--muted)}.network-status-grid strong{font-size:16px;overflow:hidden;text-overflow:ellipsis}.pair-panel{display:grid;grid-template-columns:1fr 220px;gap:18px;align-items:center}.pair-address{display:flex;align-items:center;gap:8px;margin:10px 0}.pair-address code{flex:1;min-width:0;background:#f4f8f8;border:1px solid var(--line);border-radius:9px;padding:11px 12px;font-size:13px;overflow:auto}.pair-url{word-break:break-all;margin-bottom:10px}.pair-qr{width:210px;height:210px;border:1px solid var(--line);border-radius:13px;padding:9px;background:#fff;display:grid;place-items:center}.pair-qr svg{width:100%;height:100%;display:block}.qr-fallback{text-align:center;color:var(--muted);font-size:12px;line-height:1.7}.backup-list,.audit-list{display:grid}.backup-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;border-top:1px solid #edf2f2}.backup-row:first-child{border-top:0}.backup-row>div:first-child{display:grid;gap:3px;min-width:0}.backup-row strong{font-size:11px;word-break:break-all}.backup-row small{font-size:10px;color:var(--muted)}.backup-actions{display:flex;gap:6px;flex:0 0 auto}.backup-actions a{text-decoration:none}.audit-row{display:grid;grid-template-columns:145px 90px 1fr 190px;gap:10px;align-items:center;padding:9px 0;border-top:1px solid #edf2f2}.audit-row:first-child{border-top:0}.audit-row time,.audit-row span,.audit-row small{font-size:10px;color:var(--muted)}.audit-row strong{font-size:11px}.access-code-form{display:flex;gap:8px;max-width:360px}.access-code-form input{height:40px;border:1px solid var(--line);border-radius:9px;padding:0 11px;letter-spacing:.12em;flex:1;min-width:0}
@media(max-width:900px){.network-status-grid{grid-template-columns:repeat(3,1fr)}.audit-row{grid-template-columns:120px 80px 1fr}.audit-row small{grid-column:2/-1}.pair-panel{grid-template-columns:1fr 190px}.pair-qr{width:180px;height:180px}}
@media(max-width:620px){.modal.xl{width:calc(100vw - 14px)}.network-status-grid{grid-template-columns:repeat(2,1fr)}.pair-panel{grid-template-columns:1fr}.pair-qr{width:min(260px,100%);height:auto;aspect-ratio:1/1;justify-self:center}.pair-address{align-items:stretch;flex-direction:column}.backup-row{align-items:flex-start;flex-direction:column}.audit-row{grid-template-columns:1fr 1fr}.audit-row span,.audit-row small{grid-column:1/-1}.access-code-form{flex-direction:column;max-width:none}}
.lan-address-list{display:grid;gap:8px;margin:10px 0}.lan-address-option{display:flex;align-items:center;gap:10px;width:100%;padding:9px 11px;border:1px solid var(--line,#d9e5e3);border-radius:10px;background:#fff;text-align:left;cursor:pointer}.lan-address-option span{font-size:12px;color:#73817f;min-width:56px}.lan-address-option code{font-size:13px;color:#263532;overflow-wrap:anywhere}.lan-address-option.active{border-color:#19a7a2;background:#effafa;box-shadow:0 0 0 2px rgba(25,167,162,.08)}.lan-address-option.active span{color:#087f7b;font-weight:700}.lan-help{margin:8px 0 12px;line-height:1.55}

/* Todo status history */
.todo-tabs{display:flex;gap:6px;flex-wrap:wrap;margin:0 0 6px}.todo-filter{border:1px solid var(--line);background:#fff;color:var(--muted);border-radius:999px;padding:5px 10px;font-size:11px}.todo-filter:hover{border-color:#a8cfcc;color:var(--teal-dark)}.todo-filter.active{background:var(--teal-soft);border-color:#b8dfdc;color:var(--teal-dark);font-weight:700}.todo-item.done{opacity:.82}.todo-item.done .item-main strong{text-decoration:line-through;color:var(--muted)}.todo-item.done .item-main>span{color:#688284}.check-button.checked{display:grid;place-items:center;background:var(--teal);border-color:var(--teal);color:#fff;font-size:12px;font-weight:800}
.period-editor{display:grid;gap:9px;margin:12px 0 18px}.period-edit-row{display:grid;grid-template-columns:minmax(90px,1.2fr) 120px 22px 120px minmax(150px,auto);align-items:center;gap:8px;border:1px solid var(--line);border-radius:12px;padding:9px;background:#fbfdfd}.period-edit-row>input{min-width:0;height:38px;border:1px solid #ccdcdc;border-radius:9px;padding:0 9px;background:#fff}.period-edit-row>span{text-align:center;color:var(--muted)}.period-row-actions{display:flex;justify-content:flex-end;gap:3px}.timetable-head{padding:20px 20px 0}.timetable-table{min-width:1180px}.timetable-table tbody th{width:118px;min-width:118px}.timetable-table tbody th small{font-size:11px;white-space:nowrap}.timetable-table td{min-width:125px}
@media(max-width:720px){.period-edit-row{grid-template-columns:1fr 1fr}.period-edit-row>span{display:none}.period-row-actions{grid-column:1/-1;justify-content:flex-start}.timetable-table{min-width:1080px}}
.worklog-page{display:grid;gap:18px}.worklog-head{padding:20px}.worklog-summary{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px}.worklog-summary span{background:#f2f8f7;border:1px solid var(--line);border-radius:999px;padding:7px 11px;font-size:12px;color:var(--muted)}.worklog-summary b{color:var(--text);font-size:15px}.worklog-tabs,.grade-tabs{display:flex;gap:8px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:10px}.grade-tab{border:1px solid transparent;background:transparent;border-radius:9px;padding:8px 12px;color:var(--muted)}.grade-tab.active{background:var(--teal-soft);color:var(--teal-dark);font-weight:700}.worklog-search{display:flex;gap:8px;margin-top:14px}.worklog-search input{flex:1;min-width:160px;border:1px solid var(--line);border-radius:10px;padding:9px 11px}.worklog-list{padding:0;overflow:hidden}.worklog-item{display:flex;align-items:flex-start;gap:16px;padding:18px 20px;border-bottom:1px solid #edf2f2}.worklog-item:last-child{border-bottom:0}.worklog-item-main{min-width:0;flex:1}.worklog-meta{display:flex;gap:8px;color:var(--muted);font-size:12px}.worklog-item h3{margin:6px 0;font-size:16px}.worklog-item p{margin:0;color:var(--muted);font-size:13px;line-height:1.65;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.worklog-item>.row-actions{flex:0 0 auto}.worklog-item .text-btn{min-height:34px}
@media(max-width:640px){.worklog-item{flex-direction:column}.worklog-item>.row-actions{width:100%}.worklog-search{flex-direction:column}}
.grade-tabs-wrap{padding:0 20px 18px}.grade-analysis-stack{display:grid;gap:18px}.grade-local-stats{padding:0}.layer-pills{display:flex;gap:5px!important}.layer-pills i{font-style:normal;font-size:11px;border:1px solid var(--line);border-radius:7px;padding:3px 6px;background:#fff}.borderline-table{min-width:650px}.borderline-badge{display:inline-block;background:#fff3dc;color:#8a5a08;border-radius:999px;padding:4px 8px;font-size:11px}.ai-grade-panel{min-height:280px}.ai-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.ai-result{margin-top:18px;min-height:140px;border:1px solid var(--line);border-radius:12px;background:#f8fbfb;padding:16px;white-space:pre-wrap;line-height:1.75;color:#40585b}.ai-result.loading{color:var(--muted)}
@media(max-width:640px){.grade-tabs-wrap{padding:0 14px 14px}.ai-actions{align-items:stretch}.ai-actions>*{width:100%}}
.ai-error{color:var(--red);margin-bottom:12px;white-space:pre-wrap}.ai-result .btn{margin-top:4px}

/* V2.4 AI settings */
.ai-settings-page{max-width:760px}.ai-settings-card{display:grid;gap:18px}.ai-settings-status{display:inline-flex;align-items:center;border-radius:999px;padding:6px 10px;font-size:12px;font-weight:700;border:1px solid var(--line);background:#f7f9f9;color:var(--muted)}.ai-settings-status.ok{background:var(--teal-soft);border-color:#b9dfdc;color:var(--teal-dark)}.ai-settings-status.error{background:#fff1f1;border-color:#f1c5c7;color:var(--red)}.ai-settings-actions{justify-content:flex-start}

/* V2.4 AI assistant */
.ai-assistant-page{display:grid;gap:18px}.ai-assistant-head{display:flex;align-items:center;justify-content:space-between}.ai-assistant-head h2{margin:3px 0 0}.ai-assistant-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.ai-assistant-card{min-height:132px;text-align:left;display:grid;align-content:start;gap:8px}.ai-assistant-card[type="button"]{width:100%;color:var(--text)}.ai-assistant-card[type="button"]:hover{border-color:#a8cfcc;box-shadow:0 9px 28px rgba(27,65,65,.1)}.ai-assistant-card strong{font-size:17px}.ai-assistant-card>span{font-size:13px;color:var(--muted);line-height:1.55}.ai-assistant-select-card select{height:40px;border:1px solid var(--line);border-radius:9px;background:#fff;padding:0 10px;min-width:0}.ai-assistant-select-card .btn{justify-self:start}.ai-assistant-result-card{min-height:260px}.ai-assistant-output{white-space:pre-wrap;line-height:1.85}.ai-result-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}.ai-empty-state{margin-bottom:12px;color:var(--muted)}
@media(max-width:760px){.ai-assistant-grid{grid-template-columns:1fr}.ai-assistant-card{min-height:auto}.ai-result-actions .btn{flex:1 1 auto}}

/* V2.5 practical dashboard */
.dashboard-aux-grid{display:grid;grid-template-columns:minmax(230px,.68fr) minmax(340px,1.05fr) minmax(340px,1.05fr);gap:16px}.holiday-countdown-list{display:grid;gap:8px}.holiday-countdown{display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid #e2eceb;border-radius:12px;padding:11px 12px;background:#fbfdfd}.holiday-countdown.primary{background:linear-gradient(135deg,#e9f8f6,#f8fcfc);border-color:#bfe2df}.holiday-countdown>span{display:grid;gap:3px}.holiday-countdown b{font-size:14px}.holiday-countdown small{font-size:10px;color:var(--muted)}.holiday-countdown>strong{font-size:21px;color:var(--teal-dark);white-space:nowrap}.duty-scroll-window{height:190px;overflow:hidden;position:relative}.duty-scroll-window:before,.duty-scroll-window:after{content:"";position:absolute;left:0;right:0;height:16px;z-index:2;pointer-events:none}.duty-scroll-window:before{top:0;background:linear-gradient(#fff,rgba(255,255,255,0))}.duty-scroll-window:after{bottom:0;background:linear-gradient(rgba(255,255,255,0),#fff)}.duty-scroll-track{display:grid;gap:8px;animation:dutyScroll 24s linear infinite}.duty-scroll-track:hover{animation-play-state:paused}.duty-scroll-item{display:grid;grid-template-columns:64px 54px minmax(0,1fr);gap:8px 9px;align-items:center;border:1px solid #e4eceb;border-radius:11px;padding:9px 10px;background:#fff}.duty-scroll-item.today{border-color:#a8d8d4;background:#f1faf9}.duty-scroll-day{font-size:11px;font-weight:700;color:var(--teal-dark)}.duty-scroll-group{font-size:10px;border-radius:999px;background:#edf4ff;color:#4776b8;padding:3px 6px;text-align:center}.duty-scroll-item strong{font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.duty-scroll-item small{grid-column:3/4;color:var(--muted);font-size:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}@keyframes dutyScroll{from{transform:translateY(0)}to{transform:translateY(-50%)}}.student-record-overview{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.student-record-row{border:1px solid #e4eceb;background:#fff;border-radius:11px;padding:9px;display:flex;align-items:center;gap:9px;text-align:left;min-width:0}.student-record-row:hover{border-color:#9fcfcb;background:#fbfefe}.student-record-row .avatar{width:32px;height:32px;border-radius:10px;flex:0 0 auto}.student-record-main{display:grid;gap:2px;min-width:0;flex:1}.student-record-main strong{font-size:12px}.student-record-main small{font-size:9px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.student-record-row>b{font-size:16px;color:var(--teal-dark)}.demo-data-zone{display:flex;align-items:center;justify-content:space-between;gap:18px}.demo-data-zone h3{margin:0 0 5px}.demo-data-zone p{margin:0;color:var(--muted);font-size:11px;line-height:1.6}@media(max-width:1250px){.dashboard-aux-grid{grid-template-columns:1fr 1fr}.student-record-card{grid-column:1/-1}}@media(max-width:760px){.dashboard-aux-grid{grid-template-columns:1fr}.student-record-card{grid-column:auto}.student-record-overview{grid-template-columns:1fr}.demo-data-zone{align-items:flex-start;flex-direction:column}}@media(prefers-reduced-motion:reduce){.duty-scroll-track{animation:none}}

/* V2.5.1 class settings */
.top-summary-button{border:0;background:transparent;padding:5px 8px;border-radius:9px;text-align:right;color:inherit;display:grid;gap:2px;justify-items:end}.top-summary-button:hover{background:#f1f7f6}.top-summary-button strong{font-size:13px}.top-summary-button span{font-size:11px;color:var(--muted)}.class-settings-form{margin:2px 0}


/* V2.6 phone connection */
.phone-connect-page{display:grid;gap:18px}.phone-status-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.phone-status-row>span{background:var(--surface,#fff);border:1px solid var(--border,#e4e8ef);border-radius:12px;padding:12px 14px;color:var(--muted,#64748b)}.phone-status-row strong{display:block;color:var(--text,#1f2937);margin-top:4px}.phone-connect-main{display:grid;grid-template-columns:minmax(300px,.9fr) minmax(320px,1.1fr);gap:18px}.phone-qr-card,.phone-connect-info{background:var(--surface,#fff);border:1px solid var(--border,#e4e8ef);border-radius:16px;padding:20px}.phone-steps{display:grid;gap:6px;margin:12px 0 16px}.phone-steps p{margin:0;color:var(--muted,#64748b)}.phone-qr{display:flex;justify-content:center;align-items:center;min-height:250px}.phone-qr svg{width:min(280px,100%);height:auto}.phone-address-row{display:flex;gap:10px;align-items:center;margin:10px 0 12px}.phone-address-row code{flex:1;min-width:0;overflow-wrap:anywhere;background:var(--soft,#f6f8fb);padding:11px 12px;border-radius:10px}.phone-access-code{display:flex;align-items:center;gap:8px;margin:16px 0;padding:12px;border-radius:10px;background:var(--soft,#f6f8fb)}.phone-access-code small{color:var(--muted,#64748b)}.phone-help{margin-top:12px;border-top:1px solid var(--border,#e4e8ef);padding-top:12px}.phone-help summary{cursor:pointer;font-weight:700}.phone-help p{margin:8px 0;color:var(--muted,#64748b)}.phone-alt-list{display:grid;gap:8px;margin-top:10px}.phone-alt-address{border:1px solid var(--border,#e4e8ef);background:var(--surface,#fff);border-radius:9px;padding:9px 10px;text-align:left;cursor:pointer;overflow-wrap:anywhere}.phone-connect-card{display:flex;align-items:center;justify-content:space-between;gap:16px}.phone-connect-card h3{margin:0 0 4px}.phone-connect-card p{margin:0;color:var(--muted,#64748b)}.phone-first-hint{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 16px;border-radius:14px;background:var(--soft,#f6f8fb);border:1px solid var(--border,#e4e8ef);margin-bottom:14px}.phone-first-hint span{display:grid;gap:2px}.phone-first-hint small{color:var(--muted,#64748b)}
@media(max-width:760px){.phone-status-row,.phone-connect-main{grid-template-columns:1fr}.phone-address-row,.phone-connect-card,.phone-first-hint{align-items:stretch;flex-direction:column}.phone-address-row{display:grid}.phone-qr{min-height:220px}.phone-qr svg{max-width:240px}}
.phone-network-warning{margin:12px 0 16px;border:1px solid #e2b15e;border-radius:12px;background:#fff8e8;padding:13px 15px;display:grid;gap:5px}.phone-network-warning strong{font-size:13px;color:#7a4a00}.phone-network-warning p{margin:0;font-size:12px;line-height:1.65;color:#604a25}.phone-network-warning small{font-size:10px;line-height:1.55;color:#866b3d}

/* V2.6.3 multi-dimensional grade analysis */
.grade-data-analysis{display:grid;gap:14px}.grade-analysis-nav{display:flex;gap:8px;flex-wrap:wrap}.analysis-chip{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 14px;color:var(--muted);cursor:pointer}.analysis-chip.active{background:var(--teal-soft);border-color:#b9d8d5;color:var(--teal-dark);font-weight:700}.metric-strip{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;margin-bottom:16px}.metric-strip span{border:1px solid var(--line);border-radius:12px;padding:12px;background:#f8fbfb;color:var(--muted);font-size:12px}.metric-strip b{display:block;color:var(--teal-dark);font-size:21px;margin-bottom:2px}.grade-layer{display:inline-grid;place-items:center;min-width:30px;height:28px;border-radius:8px;font-weight:800}.layer-A{background:#e2f4ec;color:#1e7655}.layer-B{background:#e8f1fb;color:#315f8a}.layer-C{background:#fff0e4;color:#9b5a24}.student-layer-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.student-layer-card{border:1px solid var(--line);border-radius:14px;padding:14px;background:#fbfdfd}.student-layer-title{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:10px}.student-layer-title div{display:grid}.student-layer-title small{color:var(--muted);font-weight:400}.student-layer-list{display:grid;gap:6px;margin-top:12px}.student-layer-list button{border:0;background:#fff;border-radius:9px;padding:8px 10px;display:flex;justify-content:space-between;gap:10px;cursor:pointer;text-align:left}.student-layer-list button:hover{background:var(--teal-soft)}.student-layer-list small{color:var(--muted)}.analysis-filters{display:flex;gap:8px;flex-wrap:wrap}.trend-up{color:#167a55;font-weight:700}.trend-down{color:#b04949;font-weight:700}.bias-badge{display:inline-block;border-radius:999px;padding:4px 9px;background:#edf5f4;color:#3b6662;font-size:11px}.bias-badge.mild{background:#fff4dc;color:#8b650e}.bias-badge.strong{background:#ffe9e5;color:#a3483e}
@media(max-width:800px){.metric-strip{grid-template-columns:repeat(2,1fr)}.student-layer-grid{grid-template-columns:1fr}.analysis-filters{align-items:stretch}.analysis-filters>*{flex:1 1 180px}}

/* V2.6.5 date timetable + weekend visibility */
.timetable-toolbar{align-items:center;flex-wrap:wrap}.timetable-view-switch{display:flex;gap:4px;padding:3px;border:1px solid var(--line);border-radius:11px;background:#f7fbfa}.timetable-view-switch .btn{border-color:transparent}.timetable-date-nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.timetable-date-nav input[type="date"]{height:36px;border:1px solid var(--line);border-radius:9px;padding:0 9px;background:#fff;color:var(--text)}.timetable-range{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:14px 20px 10px;padding:9px 12px;border:1px solid var(--line);border-radius:10px;background:#f8fbfb}.timetable-range strong{color:var(--teal-dark)}.timetable-range span{font-size:13px}.timetable-range small{color:var(--muted);margin-left:auto}.timetable-day-head{display:grid;gap:3px;justify-items:center;min-width:92px}.timetable-day-head>span{font-size:12px;color:var(--muted);font-weight:500}.timetable-day-head>small{font-size:10px;color:var(--muted);font-weight:400}.timetable-restore-day{font-size:10px!important;padding:2px 5px!important}.timetable-table td.date-override{background:#edf8f5}.timetable-table td.date-override input:first-child{color:var(--teal-dark)}.timetable-table.date-mode thead th{vertical-align:middle}
@media(max-width:900px){.timetable-toolbar{align-items:flex-start}.timetable-view-switch,.timetable-date-nav{width:100%}.timetable-date-nav input[type="date"]{flex:1;min-width:140px}.timetable-range small{width:100%;margin-left:0}}
@media print{.timetable-view-switch,.timetable-date-nav,.timetable-range small,.timetable-restore-day{display:none!important}.timetable-range{margin:0 0 10px;border:0;padding:0}.timetable-table td.date-override{background:#fff}}

/* V2.7.2 collapsible navigation */
.nav-group-toggle{width:100%;border:0;background:transparent;display:flex;align-items:center;gap:9px;color:var(--muted);text-align:left;border-radius:9px;padding:7px 10px;font-size:12px;font-weight:700}.nav-group-toggle:hover{background:#f5f9f8;color:var(--teal-dark)}.nav-group-toggle.active-parent{color:var(--teal-dark)}.nav-group-icon{width:22px;display:grid;place-items:center;flex:0 0 22px}.nav-group-title{min-width:0;flex:1}.nav-group-chevron{display:grid;place-items:center;transition:transform .16s ease;transform:rotate(90deg)}.nav-group.is-collapsed .nav-group-chevron{transform:rotate(0)}.nav-group.is-collapsed .nav-group-items{display:none}.nav-label{min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-collapse-btn{display:none}

/* V2.8 Modern UI */
:root{
  --bg:#F7F8F7;--panel:#FFFFFF;--text:#18201D;--muted:#68716D;--weak:#68716D;
  --line:#E8ECE9;--teal:#28745D;--teal-dark:#23654F;--teal-soft:#EDF5F1;
  --blue:#3B82F6;--orange:#D88720;--red:#CF4A52;
  --radius-sm:8px;--radius-card:10px;--radius-modal:12px;--control-h:40px;
  --shadow-float:0 12px 36px rgba(15,23,42,.10)
}
html,body{background:var(--bg);color:var(--text)}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-card);padding:16px;box-shadow:none}
.btn{min-height:40px;border:1px solid var(--line);background:#fff;border-radius:var(--radius-sm);padding:8px 13px;font-size:13px;font-weight:500;display:inline-flex;align-items:center;justify-content:center;gap:6px}
.btn:hover{border-color:#C9D4CE;background:#FBFCFB}.btn.primary{background:var(--teal);color:#fff;border-color:var(--teal)}.btn.primary:hover{background:var(--teal-dark)}
.btn.secondary{background:#fff;color:var(--text)}.text-btn{border:0;background:transparent;color:var(--teal-dark);padding:5px 4px;font-size:12px}
.field{gap:6px}.field span{font-size:12px;color:var(--muted);font-weight:500}.field input,.field select,.field textarea{min-height:40px;width:100%;border:1px solid #DDE3DF;border-radius:var(--radius-sm);padding:8px 11px;background:#fff;outline:none;font-size:13px}.field textarea{min-height:88px;resize:vertical}.field input:focus,.field select:focus,.field textarea:focus{border-color:#6EA995;box-shadow:0 0 0 3px rgba(40,116,93,.08)}
.modal{border-radius:var(--radius-modal);box-shadow:var(--shadow-float)}.modal-head{height:64px;padding:0 20px}.modal-head h2{font-size:18px;font-weight:600}.modal-body{padding:20px}
.page-root{padding:24px 28px 56px}.topbar{min-height:76px;padding:14px 28px}.topbar h1{font-size:22px;font-weight:600;letter-spacing:-.01em}.topbar p{font-size:13px}.top-summary strong{font-size:14px}
.page-header{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:18px}.page-header h2{margin:0;font-size:22px;font-weight:600;letter-spacing:-.01em}.page-header p{margin:5px 0 0;font-size:13px;color:var(--muted)}
.page-tabs{display:flex;gap:18px;border-bottom:1px solid var(--line);min-height:36px;overflow:auto}.page-tab{border:0;background:none;padding:7px 0 9px;color:var(--muted);font-size:13px;white-space:nowrap}.page-tab.active{color:var(--teal-dark);font-weight:600;border-bottom:2px solid var(--teal)}
.section-head{margin-bottom:14px}.section-head h2{font-size:17px;font-weight:600}.toolbar{padding:16px}.toolbar h2{font-size:18px;margin:0 0 4px}.toolbar p{font-size:12px}
.stat{border:0;border-radius:8px;padding:12px 8px;background:#F8FAF9}.stat strong{font-size:24px}.mini-metrics span{border:0;background:#F8FAF9;border-radius:8px;padding:8px 10px}
.quick-link{border:1px solid var(--line);padding:8px 11px;border-radius:8px}.birthday-row{border:0;border-bottom:1px solid var(--line);border-radius:0;padding:10px 2px}
.todo-item,.notice-row{padding:10px 2px;border-bottom:1px solid var(--line)}
.settings-page{max-width:880px}.settings-header{margin-bottom:8px}.settings-list{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}.settings-row{width:100%;min-height:68px;border:0;border-bottom:1px solid var(--line);background:#fff;padding:12px 16px;display:flex;align-items:center;gap:12px;text-align:left}.settings-row:last-child{border-bottom:0}.settings-row:hover{background:#FAFBFA}.settings-copy{display:grid;gap:4px;min-width:0;flex:1}.settings-copy strong{font-size:14px;font-weight:600}.settings-copy small{font-size:12px;color:var(--muted)}.settings-arrow{font-size:22px;color:var(--weak)}.settings-about{cursor:default}
.grade-tabs,.worklog-tabs{display:flex;gap:18px;border-bottom:1px solid var(--line)}.grade-tab{border:0;background:transparent;padding:8px 0 10px;color:var(--muted);font-size:13px}.grade-tab.active{color:var(--teal-dark);font-weight:600;border-bottom:2px solid var(--teal)}
.worklog-item{border-bottom:1px solid var(--line);padding:14px 2px}.worklog-item:last-child{border-bottom:0}.worklog-list{padding-top:4px}.worklog-summary span{background:#F8FAF9;border:0;border-radius:8px}
.data-card{box-shadow:none}.metric-card{box-shadow:none!important;border:1px solid var(--line)!important;border-radius:10px!important}.compact-card{box-shadow:none!important}
@media print{.sidebar,.sidebar-scrim,.topbar,.mobile-topbar,.mobile-bottom-nav{display:none!important}.main-area{margin:0!important;width:100%!important}.page-root{padding:0!important}}

/* V2.8 page-specific simplification */
.dashboard-v21,.dashboard-main-grid,.dashboard-lower-grid,.dashboard-aux-grid{gap:14px}.overview-card{background:#fff}.metric-cards{gap:10px}.metric-card{background:#fff}.metric-card:hover{background:#FAFBFA}.attendance-strip,.holiday-card,.birthday-compact{box-shadow:none}
.student-table-panel{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}.student-table-panel .table-wrap{margin:0}.student-page-header .search-box{min-width:220px}
.attendance-summary{background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px;margin-bottom:14px}.attendance-history{padding:16px}.history-row{border-color:var(--line)}
.grade-page-header{align-items:flex-start}.grades-page>.grade-tabs-wrap{background:#fff;border:1px solid var(--line);border-radius:10px 10px 0 0;padding:0 16px}.grades-page>.card,.grades-page>.data-card{border-radius:0 0 10px 10px;border-top:0}.grade-toolbar{padding:0}.select-control{min-height:40px;border:1px solid var(--line);border-radius:8px;padding:0 10px;background:#fff;font-size:13px}
.worklog-controls{background:#fff;border:1px solid var(--line);border-radius:10px 10px 0 0;padding:12px 16px 0}.worklog-summary{margin-bottom:10px}.worklog-tabs{margin:0}.worklog-search{padding:10px 0;display:flex;gap:8px}.worklog-search input{min-height:38px;border:1px solid var(--line);border-radius:8px;padding:7px 10px;flex:1;min-width:0}.worklog-list{background:#fff;border:1px solid var(--line);border-top:0;border-radius:0 0 10px 10px;padding:0 16px}.worklog-item h3{font-size:15px;margin:5px 0}.worklog-item p{font-size:13px;color:var(--muted);margin:0}
.module-stack{gap:14px}.seat-card,.duty-board-card,.timetable-card,.committee-card{box-shadow:none}.committee-grid{gap:10px}.committee-card{border-radius:10px}.timetable-card{border-radius:10px}.timetable-toolbar{padding:14px 16px;border-bottom:1px solid var(--line)}.timetable-table th,.timetable-table td{border-color:var(--line)}
.profile-panel{box-shadow:none!important;border:1px solid var(--line)!important;border-radius:10px!important}.profile-grid{gap:10px!important}.profile-hero{border-radius:10px!important;box-shadow:none!important}
:root{--radius:10px;--shadow:0 8px 24px rgba(15,23,42,.07)}
.brand-mark{background:var(--teal);box-shadow:none;border-radius:9px}.brand strong{font-weight:600}

/* Advanced assistance guide */
.advanced-help-page{max-width:980px;display:grid;gap:18px}
.advanced-help-hero,.advanced-help-section{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px 24px}
.advanced-help-kicker{font-size:12px;font-weight:700;color:var(--teal-dark);margin-bottom:8px}
.advanced-help-hero h2{margin:0;font-size:24px;letter-spacing:-.02em}
.advanced-help-hero>p{max-width:760px;margin:10px 0 0;color:var(--muted);line-height:1.8}
.advanced-help-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.advanced-help-actions .btn{text-decoration:none;display:inline-flex;align-items:center;justify-content:center}
.advanced-help-path{display:flex;align-items:center;gap:12px;margin-top:16px;padding:10px 12px;background:var(--bg);border-radius:8px;font-size:12px;color:var(--muted)}
.advanced-help-path code{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text)}
.advanced-help-section-head{display:flex;align-items:flex-start;gap:12px;margin-bottom:14px}.advanced-help-section-head>span{display:grid;place-items:center;width:30px;height:30px;border-radius:8px;background:var(--teal-soft);color:var(--teal-dark);font-size:11px;font-weight:800}.advanced-help-section-head h3{margin:0;font-size:17px}.advanced-help-section-head p{margin:4px 0 0;font-size:12px;color:var(--muted)}
.advanced-help-steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.advanced-help-steps li{padding:14px;background:var(--bg);border-radius:9px}.advanced-help-steps strong,.advanced-help-steps span{display:block}.advanced-help-steps strong{font-size:13px}.advanced-help-steps span{font-size:12px;color:var(--muted);line-height:1.6;margin-top:6px}
.advanced-help-examples{display:grid;grid-template-columns:1fr 1fr;gap:8px}.advanced-help-examples blockquote{margin:0;padding:13px 14px;border:0;background:var(--bg);border-radius:8px;font-size:13px;line-height:1.7;color:var(--text)}
.advanced-help-usecases{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.advanced-help-usecases article{padding:14px;background:var(--bg);border-radius:9px}.advanced-help-usecases strong,.advanced-help-usecases span{display:block}.advanced-help-usecases strong{font-size:13px;color:var(--text)}.advanced-help-usecases span{margin-top:6px;font-size:12px;line-height:1.7;color:var(--muted)}
.advanced-help-safety>p{margin:0;color:var(--muted);line-height:1.8;font-size:13px}.advanced-help-safety code{color:var(--text)}