.sn-panel .panel-heading{display:flex;align-items:center;justify-content:space-between}.sn-count,.sn-note{color:var(--muted,#68788d);font-size:12px}.sn-toolbar{display:flex;gap:10px;align-items:end;margin:16px 0}.sn-toolbar label{flex:1;max-width:440px;display:grid;gap:6px;font-size:12px;color:var(--muted,#68788d)}.sn-toolbar input{width:100%;min-height:40px}.sn-toolbar button{min-height:40px}.sn-row{display:grid;grid-template-columns:170px minmax(0,1fr) 100px;gap:20px;padding:16px 0;border-bottom:1px solid var(--border,#dfe5ec);align-items:center}.sn-person,.sn-content{display:grid;gap:5px;min-width:0}.sn-person b,.sn-content b{font-size:14px}.sn-person time,.sn-content small{font-size:12px;color:var(--muted,#68788d)}.sn-content b{line-height:1.5;overflow-wrap:anywhere}.sn-result{display:flex;align-items:center;justify-content:flex-end;gap:12px}.sn-status{white-space:nowrap;font-size:12px;color:#987026}.sn-status.success{color:#2f7155}.sn-result .text-button{font-size:12px;padding:4px 0;white-space:nowrap}.sn-pagination{display:flex;justify-content:space-between;align-items:center;padding:16px 0 0;font-size:12px;color:var(--muted,#68788d)}.sn-pagination>div{display:flex;align-items:center;gap:12px}.sn-pagination button{font-size:12px;min-height:32px;padding:4px 10px}.sn-note{margin:16px 0 0;line-height:1.6}.sn-detail-meta{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}.sn-detail time{font-size:12px;color:var(--muted,#68788d)}.sn-message{padding:16px;background:#f5f7fa;line-height:1.7;white-space:pre-wrap;overflow-wrap:anywhere;border-radius:8px}.sn-detail dl{display:grid;grid-template-columns:90px minmax(0,1fr);gap:12px;font-size:14px}.sn-detail dt{color:var(--muted,#68788d)}.sn-detail dd{margin:0;overflow-wrap:anywhere}.sn-error{font-size:13px;color:#a62639}@media(max-width:600px){.sn-row{grid-template-columns:minmax(0,1fr) auto;gap:10px;padding:14px 0}.sn-person{grid-column:1/-1;display:flex;justify-content:space-between;gap:8px;align-items:center}.sn-person time{font-size:11px}.sn-result{align-self:end}.sn-toolbar{gap:8px}.sn-pagination>div{gap:7px}.sn-detail dl{grid-template-columns:76px minmax(0,1fr)}}
.sn-tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:16px}.sn-tabs button{font-size:13px;padding:9px 18px;border:1px solid transparent;background:transparent;color:var(--muted)}.sn-tabs button[aria-selected=true]{color:var(--accent);background:var(--accent-soft);border-color:#e4c7ce;font-weight:700}.sn-station-toolbar{display:flex;align-items:center;gap:8px;margin:16px 0}.sn-station-toolbar input{flex:1;min-width:0}.sn-station-toolbar select{width:auto;min-width:128px}.sn-station-row{display:grid;grid-template-columns:minmax(0,1fr) 90px 64px 40px;gap:16px;align-items:center;padding:16px 0;border-bottom:1px solid var(--line)}.sn-title{border:0;background:transparent;font:inherit;font-size:14px;font-weight:700;color:var(--text);padding:0;text-align:left;min-height:0;overflow-wrap:anywhere}.sn-read{text-align:right;display:grid;gap:4px}.sn-read b{font-size:14px}.sn-read b span,.sn-read small{font-size:12px;color:var(--muted);font-weight:400}.notice-dialog{width:min(900px,calc(100vw - 32px))}.notice-dialog .dialog-body{min-height:0;overflow:auto;max-height:none}.notice-dialog form>label,.sn-compose-top label{display:grid;gap:6px;font-size:12px;color:var(--muted)}.sn-compose-top{display:grid;grid-template-columns:minmax(0,1fr) 160px;gap:12px;margin-bottom:12px}.notice-dialog textarea{width:100%;border:1px solid var(--line);border-radius:7px;padding:10px;font:inherit;font-size:14px;line-height:1.6;resize:vertical}.notice-dialog input[type=checkbox]{width:16px;height:16px;margin:0;flex:none}.sn-audience{margin-top:16px;border-top:1px solid var(--line);padding-top:14px}.sn-audience-heading{display:flex;gap:16px;align-items:center;flex-wrap:wrap;font-size:13px}.sn-audience label{display:flex;align-items:center;gap:7px;font-size:12px}.sn-class-chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}.notice-dialog .sn-class-chips label,.notice-dialog .sn-person-results label{border:1px solid var(--line);border-radius:6px;padding:7px 9px;min-height:32px;display:flex;align-items:center;gap:7px}.sn-groups{margin-top:12px}.sn-groups summary{font-size:13px;color:var(--muted);cursor:pointer}.sn-person-search{display:flex;align-items:center;gap:8px;margin-top:14px;font-size:12px}.sn-person-search input{min-width:0;flex:1}.sn-person-search select{width:90px}.sn-person-search span{white-space:nowrap;color:var(--muted)}.sn-person-results{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:7px;max-height:180px;overflow:auto;margin-top:8px}.sn-person-results small{color:var(--muted);font-size:11px}.sn-recipient-preview{padding:12px;background:#eef5f0;border:1px solid #cfe0d3;border-radius:8px;margin-top:14px;display:grid;gap:6px;font-size:13px}.sn-recipient-preview[hidden]{display:none}.sn-recipient-preview span{color:var(--muted);line-height:1.6}.sn-detail-title{font-size:18px;margin:0 0 10px;overflow-wrap:anywhere}.sn-read-heading{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:18px;font-size:13px}.sn-read-heading select{width:100px;margin-left:auto}.sn-read-heading input{width:160px}.sn-read-list{margin-top:10px;max-height:260px;overflow:auto;border:1px solid var(--line);border-radius:8px}.sn-read-list>div{display:grid;grid-template-columns:120px 80px 1fr;gap:12px;padding:9px 12px;border-bottom:1px solid var(--line);font-size:13px}.sn-read-list>div:last-child{border:0}.sn-read-list small{color:var(--muted);text-align:right;font-size:12px}.sn-detail-actions{display:flex;justify-content:flex-end;margin-top:14px}.sn-claim{display:grid;grid-template-columns:140px minmax(0,1fr) auto;gap:10px;align-items:end;border-top:1px solid var(--line);padding-top:14px;margin-top:14px}.sn-claim label{display:grid;gap:6px;font-size:12px;color:var(--muted)}.sn-file-list{display:flex;gap:8px;flex-wrap:wrap}.sn-file-list button{font-size:12px;max-width:100%;overflow-wrap:anywhere}.sn-file-list small{color:var(--muted)}
@media(max-width:650px){.sn-station-toolbar{flex-wrap:wrap}.sn-station-toolbar input{flex-basis:100%}.sn-station-toolbar select{flex:1;min-width:0;width:auto}.sn-station-row{grid-template-columns:minmax(0,1fr) auto;gap:8px;padding:14px 0}.sn-station-row>.sn-content{grid-column:1/-1}.sn-station-row>.sn-read{text-align:left;display:flex;align-items:center;gap:6px}.sn-station-row>.sn-status{grid-column:2;grid-row:2}.sn-station-row>.text-button{grid-column:2;grid-row:3;padding:0;text-align:right}.notice-dialog{width:calc(100vw - 20px)}.sn-compose-top{grid-template-columns:1fr}.sn-person-search{flex-wrap:wrap}.sn-person-search input{flex-basis:65%}.sn-person-search select{flex:1}.sn-person-results{grid-template-columns:repeat(2,minmax(0,1fr))}.sn-read-list>div{grid-template-columns:1fr auto;gap:5px}.sn-read-list small{grid-column:1/-1;text-align:left}.sn-read-heading{gap:8px}.sn-read-heading b{width:100%}.sn-read-heading select{margin-left:0}.sn-read-heading input{flex:1;min-width:0}.sn-claim{grid-template-columns:1fr}.sn-audience-heading{gap:10px}.sn-tabs{margin-bottom:12px}}

.notice-dialog .sn-audience-heading label,.notice-dialog .sn-person-results label{display:flex;align-items:center;gap:7px}.notice-dialog .sn-audience-heading input,.notice-dialog .sn-class-chips input,.notice-dialog .sn-person-results input{min-height:16px}

.notice-dialog form>.sn-wechat{display:flex;align-items:center;gap:8px;margin-top:10px}.notice-dialog .sn-class-chips{gap:6px}.notice-dialog .sn-class-chips label{padding:6px;gap:5px}

.sn-upload-row{display:flex;align-items:center;gap:10px;margin-top:10px;flex-wrap:wrap}.sn-upload-row button{font-size:12px;padding:6px 10px;min-height:32px}.sn-upload-row small{font-size:12px;color:var(--muted)}.sn-upload-list{display:grid;gap:5px;margin-top:8px}.sn-upload-list>div{display:flex;align-items:center;gap:8px;padding:6px 9px;border:1px solid var(--line);border-radius:6px;font-size:12px}.sn-upload-list span{min-width:0;overflow-wrap:anywhere;flex:1}.sn-upload-list small{color:var(--muted);white-space:nowrap}.sn-upload-list button{border:0;background:transparent;min-height:24px;padding:0;width:24px;font-size:18px}
.notice-dialog .dialog-body{gap:12px}.notice-dialog .sn-message,.notice-dialog .sn-detail-title{margin:0}.notice-dialog .sn-read-heading,.notice-dialog .sn-read-list,.notice-dialog .sn-detail-actions{margin-top:0}

.sn-reader-pages{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted)}.sn-reader-pages[hidden]{display:none}.sn-reader-pages>div{display:flex;align-items:center;gap:10px}.sn-reader-pages button{font-size:12px;min-height:28px;padding:4px 8px}

.notice-dialog{max-width:calc(100vw - 20px)}.notice-dialog input[type=checkbox]{accent-color:var(--accent)}

.notice-dialog .sn-read-list>div{grid-template-columns:120px 150px minmax(0,1fr)}@media(max-width:650px){.notice-dialog .sn-read-list>div{grid-template-columns:minmax(0,1fr) auto}}

.sn-person-results [data-more-people]{grid-column:1/-1;font-size:12px;min-height:30px;padding:5px 10px}.sn-person-results small{overflow-wrap:anywhere;min-width:0}
.sn-detail-actions{display:flex;gap:8px;flex-wrap:wrap}.sn-danger-text{color:var(--accent)}
.notice-delete-dialog{width:480px}.sn-delete-summary{display:grid;gap:4px;padding:12px;background:var(--bg);border:1px solid var(--line);border-radius:7px;overflow-wrap:anywhere}.sn-delete-summary small{color:var(--muted)}.notice-dialog .sn-delete-ack{display:flex;align-items:flex-start;gap:9px;padding:10px 0;cursor:pointer;font-size:14px;line-height:21px}.notice-dialog .sn-delete-ack input{flex:none;width:16px;height:16px;min-height:16px;margin:3px 0 0}.notice-delete-dialog .dialog-footer{justify-content:flex-end}
.sn-heading-actions,.sn-maintenance-toolbar,.sn-maintenance-toolbar>div,.sn-maintenance-summary{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.sn-maintenance-toolbar{justify-content:space-between}.sn-maintenance-summary{gap:20px;color:var(--muted)}.sn-maintenance-summary b{color:var(--text);margin-left:4px}.notice-maintenance-dialog{width:860px}.sn-maintenance-list>article{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid var(--line)}.notice-dialog .sn-maintenance-list label{display:flex;align-items:flex-start;gap:9px;min-width:0;margin:0;font-size:14px;color:var(--text)}.sn-maintenance-list label>span{display:grid;gap:3px;min-width:0;overflow-wrap:anywhere}.notice-dialog .sn-maintenance-list input[type=checkbox]{width:16px;height:16px;min-height:16px;margin:3px 0 0;flex:none}.sn-maintenance-list small{font-size:12px;color:var(--muted)}.sn-maintenance-list article>div{display:flex;align-items:center;gap:8px;flex-shrink:0}.sn-maintenance-list .sn-error{color:var(--accent)}@media(max-width:650px){.sn-heading-actions{gap:6px}.sn-heading-actions button{padding:7px 9px}.sn-maintenance-list>article{align-items:flex-start;flex-wrap:wrap}.sn-maintenance-list article>label{flex-basis:100%}.sn-maintenance-list article>div{padding-left:25px}.sn-maintenance-toolbar>div{gap:6px}.sn-maintenance-toolbar button{padding:7px 9px}}

/* Unified compact classroom history: sender identity stays aligned across rows. */
.sn-classroom-toolbar{display:grid;grid-template-columns:minmax(180px,1fr) 112px 128px 128px auto;gap:8px;align-items:center;margin:14px 0 10px}
.sn-classroom-toolbar label{display:block;max-width:none;min-width:0}.sn-classroom-toolbar input,.sn-classroom-toolbar select,.sn-classroom-toolbar button{height:38px;min-height:38px;width:100%;margin:0;font-size:13px}.sn-classroom-toolbar select{padding-right:32px;background-position:right 12px center}
.sn-history-head,.sn-history .sn-row{display:grid;grid-template-columns:160px minmax(0,1fr) 132px;gap:16px;align-items:center}.sn-history-head{padding:10px 0;border-bottom:1px solid var(--line);font-size:12px;color:var(--muted)}.sn-history-head span:last-child{text-align:right}.sn-history .sn-row{padding:12px 0}.sn-history .sn-person{gap:4px}.sn-history .sn-person time{font-variant-numeric:tabular-nums;font-size:11px}.sn-message-preview{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-clamp:2}.sn-history .sn-result{gap:12px}.sn-history .sn-result button{min-height:30px;padding:4px 0}.sn-history .sn-content small{line-height:1.4}
@media(max-width:800px){.sn-classroom-toolbar{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.sn-classroom-toolbar .sn-search-field{grid-column:1/-1}.sn-classroom-toolbar select{min-width:0}.sn-classroom-toolbar select[name=status]{grid-column:1}.sn-classroom-toolbar button{grid-column:2}.sn-history-head{display:none}.sn-history .sn-row{grid-template-columns:minmax(0,1fr) auto;gap:7px}.sn-history .sn-person{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between}.sn-history .sn-content{grid-column:1/-1}.sn-history .sn-result{grid-column:1/-1;justify-content:space-between}.sn-history .sn-result button{min-height:28px}.sn-message-preview{-webkit-line-clamp:2;line-clamp:2}}

.sn-class-picker{border:1px solid var(--line);border-radius:7px;padding:10px 12px}.sn-class-picker summary{font-weight:600;color:var(--text)}.sn-class-picker summary small{font-size:12px;font-weight:400;color:var(--muted);margin-left:8px}.sn-class-picker:not([open])>.sn-class-chips{display:none}

/* A scrollable reader list needs an explicit track height inside the dialog grid. */
.notice-dialog .sn-read-list{height:clamp(160px,28vh,260px);min-height:160px;align-self:start}