/* Student records use the existing palette and local collection layout. */
.student-actions{display:flex;align-items:center;flex-wrap:wrap;gap:10px}.student-storage{display:flex;align-items:center;gap:14px;padding:16px 20px;margin-bottom:14px;border:1px solid var(--border);border-radius:14px;background:var(--bg-surface);box-shadow:var(--shadow-sm)}.student-storage>span{display:grid;place-items:center;width:38px;height:38px;background:var(--bg-inset);border-radius:10px;color:var(--accent);font-size:22px;flex:none}.student-storage>div{flex:1;min-width:0}.student-storage strong{font-size:12px}.student-storage p{font-size:11px;color:var(--text-secondary);line-height:1.8;margin:5px 0 0;overflow-wrap:anywhere}.student-storage .button{font-size:11px;white-space:nowrap}.student-guide,.student-import{border:1px solid var(--border);border-radius:14px;background:var(--bg-surface);margin-bottom:16px;overflow:hidden}.student-guide{padding:14px 18px;font-size:12px;color:var(--text-secondary);line-height:1.9}.student-guide summary,.student-import>summary{cursor:pointer}.student-guide ol{padding-left:22px;margin:12px 0 0}.student-guide li+li{margin-top:6px}.student-import>summary{padding:18px 20px;line-height:1.8;font-size:13px}.student-import>summary>span{margin-left:16px;font-size:11px;color:var(--text-secondary)}.student-import[open]>summary{border-bottom:1px solid var(--border-subtle)}.student-import-body{padding:20px}.student-upload-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.student-upload{padding:15px;border:1px dashed var(--border);border-radius:10px;background:var(--bg-inset);font-size:12px;font-weight:600;min-width:0}.student-upload input{display:block;margin:12px 0;max-width:100%;font-size:11px}.student-upload small{display:block;font-weight:400;font-size:11px;color:var(--text-secondary);line-height:1.8;overflow-wrap:anywhere}.student-field-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px;margin:18px 0}.student-field-grid label,.student-detail-filters label,.student-filters label,.student-dialog label,.student-event-settings>label{font-size:11px;color:var(--text-secondary);display:block;min-width:0}.student-field-grid input,.student-field-grid select,.student-detail-filters input,.student-filters input,.student-filters select,.student-dialog input,.student-dialog select,.student-dialog textarea,.student-event-settings>label select{width:100%;min-width:0;margin-top:7px;padding:10px 11px;font-size:12px;border-radius:8px}.student-field-grid select[multiple]{min-height:92px}.student-wide-field{grid-column:span 2}.student-column-preview{padding:12px 14px;background:var(--bg-inset);border-radius:8px;font-size:11px;line-height:1.8;color:var(--text-secondary);overflow-wrap:anywhere}.student-event-settings{border-top:1px solid var(--border);margin-top:22px;padding-top:10px}.student-event-settings>label{max-width:600px}.student-pending-row{display:flex;gap:12px;align-items:center;padding:12px 0;border-bottom:1px solid var(--border-subtle)}.student-pending-row>div{flex:1;min-width:0;font-size:12px;line-height:1.8;overflow-wrap:anywhere}.student-pending-row select{width:min(240px,38%);min-width:0;font-size:11px;margin:0}.student-pending-row small{display:block;color:var(--text-secondary)}.student-filters{display:flex;align-items:flex-end;flex-wrap:wrap;gap:12px;padding:18px 20px;background:var(--bg-surface);border:1px solid var(--border);border-radius:14px;margin-bottom:12px}.student-filters label{flex:1;min-width:110px}.student-filters .student-search{flex:2;min-width:190px}.student-filters .text-button{white-space:nowrap;padding:10px 0}.student-workspace{display:grid;grid-template-columns:minmax(220px,310px) minmax(0,1fr);gap:18px;align-items:start}.student-list-panel,.student-detail-panel{border:1px solid var(--border);border-radius:16px;background:var(--bg-surface);box-shadow:var(--shadow-sm);min-width:0;overflow:hidden}.student-section-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px 20px}.student-section-heading h2{font-size:14px;line-height:1.7}.student-section-heading .button{font-size:11px;padding:9px 12px}.student-list-panel>.student-section-heading{border-bottom:1px solid var(--border-subtle)}.student-list{padding:10px;max-height:calc(100vh - 270px);min-height:260px;overflow:auto;scrollbar-gutter:stable}.student-item{display:block;width:100%;text-align:left;padding:14px 12px;border:1px solid transparent;border-radius:11px;background:var(--bg-surface);margin:3px 0 7px}.student-item:hover{background:var(--bg-hover);border-color:var(--border)}.student-item.active{background:var(--accent-soft);border-color:var(--accent)}.student-item strong{font-size:13px;line-height:1.7;overflow-wrap:anywhere}.student-item p,.student-item small{display:block;color:var(--text-secondary);font-size:11px;line-height:1.8;margin:7px 0 0;overflow-wrap:anywhere}.student-empty{padding:44px 20px;text-align:center;color:var(--text-secondary);line-height:1.9}.student-empty>span{display:block;font-size:30px;margin-bottom:10px;color:var(--text-tertiary)}.student-empty h2{font-size:15px;color:var(--text-primary);margin-bottom:8px}.student-empty p{font-size:12px;margin:0}.student-detail-header{padding:22px;border-bottom:1px solid var(--border-subtle)}.student-detail-header h2{font-size:19px;line-height:1.7;overflow-wrap:anywhere}.student-detail-header p{font-size:12px;color:var(--text-secondary);line-height:1.9;margin:8px 0 0;white-space:pre-wrap;overflow-wrap:anywhere}.student-detail-header .student-actions{margin-top:16px}.student-detail-header .button{font-size:11px;padding:9px 12px}.student-detail-header .text-button{margin-left:auto}.student-detail-filters{padding:17px 20px;display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap;border-bottom:1px solid var(--border-subtle)}.student-detail-filters label{flex:1;min-width:115px}.student-detail-filters .button{font-size:11px;padding:10px 12px}.student-statistics{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;padding:18px 20px;border-bottom:1px solid var(--border-subtle)}.student-stat{background:var(--bg-inset);padding:14px;border-radius:10px;line-height:1.8}.student-stat strong{display:block;font-size:22px;font-weight:550;color:var(--text-primary)}.student-stat span{display:block;color:var(--text-secondary);font-size:11px}.student-record-section{border-bottom:1px solid var(--border-subtle)}.student-record-section>.student-section-heading{padding-bottom:10px}.student-record-empty{font-size:12px;color:var(--text-secondary);line-height:1.9;padding:10px 20px 22px;margin:0}.student-record{padding:14px 20px;border-bottom:1px solid var(--border-subtle);font-size:12px;line-height:1.85;overflow-wrap:anywhere}.student-record:last-child{border-bottom:0}.student-record>strong{display:block;color:var(--text-primary)}.student-record p{color:var(--text-secondary);margin:7px 0;white-space:pre-wrap}.student-record small{font-size:11px;color:var(--text-secondary)}.student-record .student-actions{margin-top:10px}.student-record .button{font-size:11px;padding:8px 11px}.student-wrong-tag{display:inline-block;padding:2px 7px;margin:3px 5px 0 0;background:var(--accent-soft);color:var(--accent);border-radius:5px;font-size:11px}.student-book{padding:0 20px 22px}.student-book>.student-section-heading{padding:18px 0 0}.student-book .fineprint{line-height:1.85;margin:10px 0}.student-checkbox{display:flex;gap:8px;align-items:center;font-size:12px;line-height:1.8;margin:14px 0;color:var(--text-secondary)}.student-checkbox input{accent-color:var(--accent)}.student-book-group{padding:13px 0;border-bottom:1px solid var(--border-subtle);font-size:12px;line-height:1.85}.student-book-group strong{display:block}.student-book-group p{margin:6px 0;color:var(--text-secondary);overflow-wrap:anywhere}.student-book .result-row{flex-wrap:wrap}.student-book .result-row>div{flex-basis:200px}.student-book .result-row .button{font-size:11px}.student-dialog{width:min(580px,calc(100vw - 28px))}.student-dialog .student-field-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.student-dialog textarea{display:block;resize:vertical;font:inherit;line-height:1.8;border:1px solid var(--border)}.student-dialog .dialog-header h2{font-size:18px;margin:0}.student-dialog .dialog-footer{justify-content:flex-end}.student-detail-panel[aria-busy=true],.student-list-panel[aria-busy=true]{opacity:.75}#student-detail-status>.message{margin:15px 20px}#student-pending-rows>.message{margin-bottom:10px}
.student-filter-note{margin:10px 20px 0;font-size:11px;color:var(--text-secondary);line-height:1.8}.student-practice-ledger{font-size:12px;line-height:1.85;overflow-wrap:anywhere}.student-practice-ledger strong{display:block}.student-practice-ledger .student-actions{margin-top:9px}.student-practice-ledger .text-button{font-size:12px;padding:6px 0}
@media(max-width:1100px){.student-field-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.student-upload-grid{grid-template-columns:1fr}.student-upload input{margin:8px 0}.student-workspace{grid-template-columns:minmax(200px,260px) minmax(0,1fr)}.student-statistics{gap:8px}.student-stat{padding:12px}}
@media(max-width:850px){.student-workspace{grid-template-columns:1fr}.student-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;max-height:360px;min-height:0}.student-list>.student-empty{grid-column:1/-1}.student-item{margin:0}.student-storage{flex-wrap:wrap;align-items:flex-start}.student-storage>a{margin-left:52px}.student-filters label{flex-basis:calc(50% - 12px);min-width:0}.student-filters .student-search{flex-basis:100%;min-width:0}.student-view>.page-heading{flex-wrap:wrap}.student-pending-row{flex-wrap:wrap}.student-pending-row>div{flex-basis:100%}.student-pending-row select{flex:1;width:auto}.student-detail-filters label{min-width:100px}.student-import-body{padding:16px}}
@media(max-width:480px){.student-field-grid,.student-dialog .student-field-grid,.student-list{grid-template-columns:1fr}.student-wide-field{grid-column:auto}.student-import>summary>span{display:block;margin:4px 0 0 16px}.student-view>.page-heading>.student-actions{width:100%}.student-view>.page-heading>.student-actions>button{flex:1}.student-storage{padding:14px}.student-storage>a{margin-left:0;width:100%;text-align:center}.student-section-heading{padding:16px}.student-detail-header,.student-record,.student-detail-filters{padding:16px}.student-detail-header .text-button{margin-left:0}.student-statistics{padding:14px;gap:6px}.student-stat{padding:10px 7px}.student-stat strong{font-size:20px}.student-stat span{font-size:10px}.student-book{padding:0 16px 18px}.student-book .student-actions>button{flex:1;font-size:11px}.student-dialog .dialog-footer{flex-wrap:wrap}.student-detail-filters label{flex-basis:calc(50% - 12px)}.student-detail-filters label:first-child{flex-basis:100%}.student-filters{padding:15px}.student-book .result-row>.button{width:100%;text-align:center}}

.student-profile-field{display:block;max-width:500px;font-size:12px;color:var(--text-secondary);line-height:1.8;margin:14px 0}.student-profile-field select{width:100%;min-width:0;margin-top:7px;font-size:12px;padding:10px 11px;border-radius:8px}

.student-record-note{padding:0 20px;font-size:11px;color:var(--text-secondary);line-height:1.9;margin:0 0 10px}.student-review-counts{display:flex;gap:8px;flex-wrap:wrap;padding:0 20px 13px}.student-review-count{font-size:11px;background:var(--bg-inset);color:var(--text-secondary);border:1px solid var(--border-subtle);padding:4px 8px;border-radius:6px}.student-wrong-reviews{display:grid;gap:8px;margin:12px 0}.student-wrong-review{display:flex;gap:12px;align-items:center;justify-content:space-between;background:var(--bg-inset);border:1px solid var(--border-subtle);border-radius:8px;padding:10px 12px}.student-review-description{flex:1;min-width:0;font-size:11px;line-height:1.9}.student-review-description .student-wrong-tag{margin:0 8px 0 0}.student-review-state{display:inline-block;color:var(--text-secondary);font-size:11px}.student-review-state.mastered{color:var(--accent);font-weight:600}.student-review-description small{display:block;font-size:10px;margin-top:3px}.student-review-description p{font-size:11px;margin:3px 0 0;white-space:pre-wrap;overflow-wrap:anywhere}.student-wrong-review>.button{font-size:11px;padding:8px 11px;flex:none}.student-review-latest{font-size:12px;color:var(--text-secondary);line-height:1.9;background:var(--bg-inset);border-radius:8px;padding:11px 13px;white-space:pre-wrap;overflow-wrap:anywhere}.student-review-history-heading{font-size:13px;margin:20px 0 7px;border-top:1px solid var(--border);padding-top:18px}.student-review-history-row{padding:11px 0;border-bottom:1px solid var(--border-subtle);font-size:12px;line-height:1.8}.student-review-history-row:last-child{border-bottom:0}.student-review-history-row strong{font-size:11px}.student-review-history-row p{margin:5px 0 0;color:var(--text-secondary);font-size:12px;white-space:pre-wrap;overflow-wrap:anywhere}
@media(max-width:480px){.student-wrong-review{flex-wrap:wrap;padding:10px}.student-review-description{flex-basis:100%}.student-wrong-review>.button{width:100%}.student-record-note{padding:0 16px}.student-review-counts{padding:0 16px 12px}}
.student-scope-notes{margin:12px 20px 0;min-width:0}.student-applied-scope,.student-scope-pending,.student-book-scope,.student-book-output-scope{font-size:11px;line-height:1.85;overflow-wrap:anywhere;white-space:pre-wrap}.student-applied-scope{margin:0;color:var(--text-primary);font-weight:550}.student-scope-pending{margin:9px 0 0;padding:10px 12px;background:var(--bg-inset);border:1px solid var(--border);border-radius:8px;color:var(--text-secondary)}.student-book-scope,.student-book-output-scope{padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:var(--bg-inset);color:var(--text-secondary);margin:12px 0}.student-book-output-scope{color:var(--text-primary)}
@media(max-width:480px){.student-scope-notes{margin-right:16px;margin-left:16px}}
/* 测验回收区与删除确认 */
.student-trash{margin-top:18px;border:1px solid var(--border);border-radius:10px;background:var(--bg-inset);padding:12px 14px}.student-trash>summary{cursor:pointer;font-size:12px;line-height:1.8}.student-trash>summary>span{margin-left:12px;font-size:11px;color:var(--text-secondary)}.student-trash>.fineprint{margin-top:8px}.student-trash-row{display:flex;gap:12px;align-items:center;padding:10px 0;border-top:1px solid var(--border-subtle)}.student-trash-row>div{flex:1;min-width:0;font-size:12px;line-height:1.8;overflow-wrap:anywhere}.student-trash-row small{display:block;color:var(--text-secondary)}
.student-delete-caption{font-size:13px;line-height:1.9;overflow-wrap:anywhere}.student-delete-impact{margin:10px 0 0;padding-left:20px;font-size:12px;line-height:1.9;color:var(--text-primary)}.student-delete-impact li.student-delete-warning{color:var(--danger)}
@media(max-width:480px){.student-trash-row{flex-wrap:wrap}.student-trash-row>div{flex-basis:100%}}