:root{color-scheme:light;--blue: #1264ad;--blue-dark: #0d579a;--blue-soft: #e9f3ff;--page: #f4f6fb;--panel: #ffffff;--line: #dfe6f0;--ink: #1c2b3a;--muted: #6e7f91;--green: #20a06b;--amber: #c8871c;--danger: #d64545}*{box-sizing:border-box}body{margin:0;min-width:1180px;background:var(--page);color:var(--ink);font-family:Microsoft YaHei,PingFang SC,Arial,sans-serif}button,input,select{font:inherit}button{cursor:pointer}.login-page{display:grid;grid-template-columns:1fr 420px;gap:48px;align-items:center;min-height:100vh;padding:64px 9vw;background:linear-gradient(120deg,#0d5faa,#1674c6 46%,#f5f7fb 46%)}.login-brand{color:#fff}.brand-chip{display:inline-flex;border:1px solid rgba(255,255,255,.34);border-radius:6px;padding:8px 12px;font-size:14px}.login-brand h1{margin:24px 0 12px;font-size:46px;letter-spacing:0}.login-brand p{margin:0;color:#ffffffd1;font-size:18px}.login-card{display:grid;gap:18px;padding:30px;border:1px solid var(--line);border-radius:8px;background:#fff;box-shadow:0 22px 60px #14355a24}.login-card h2{margin:0}label{display:grid;gap:8px;color:#344457;font-weight:700}input,select,textarea{height:38px;border:1px solid var(--line);border-radius:4px;background:#fff;color:var(--ink);outline:none;padding:0 12px}input:focus,select:focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px #1264ad1f}textarea{min-height:70px;resize:vertical;padding:10px 12px}.admin-layout{display:grid;grid-template-columns:138px minmax(1040px,1fr);min-height:100vh}.sidebar{background:var(--blue);color:#fff}.sidebar-title{display:grid;gap:6px;padding:18px 8px 14px}.sidebar-title strong{font-size:13px}.sidebar-title span{color:#ffffffb8;font-size:12px}.nav-list{display:grid;gap:8px;padding:8px}.nav-group{display:grid;gap:4px}.nav-group-head{display:flex;align-items:center;justify-content:space-between;min-height:34px;width:100%;border:0;border-radius:4px;background:#ffffff14;color:#ffffffe6;padding:0 8px;text-align:left}.nav-group-head span{display:inline-flex;align-items:center;gap:8px;min-width:0;font-size:12px;font-weight:800}.nav-group-head:hover{background:#ffffff24}.nav-children{display:grid;gap:4px;padding-left:8px}.nav-item{display:flex;align-items:center;gap:8px;min-height:34px;width:100%;border:0;border-radius:4px;background:transparent;color:#fff;padding:0 8px 0 10px;text-align:left}.nav-item.active,.nav-item:hover{background:#ffffff2e}.workspace{min-width:0}.topbar{display:flex;align-items:center;justify-content:space-between;height:42px;border-bottom:1px solid var(--line);background:#fff;padding:0 18px}.topbar h1{margin:0;font-size:16px}.topbar span{color:var(--muted);font-size:12px}.top-actions{display:flex;align-items:center;gap:12px;color:#334155;font-size:12px}.boot-screen{display:grid;min-height:100vh;place-items:center;color:var(--muted)}.search-box,.filter-search{display:flex;align-items:center;gap:8px;width:260px;height:30px;border:1px solid var(--line);border-radius:4px;color:var(--muted);padding:0 10px}.search-box input,.filter-search input{width:100%;height:28px;border:0;box-shadow:none;padding:0}.notice-dot{display:grid;place-items:center;width:17px;height:17px;border-radius:50%;background:#e63636;color:#fff!important;font-size:11px!important}.avatar{display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:#dcecff;color:var(--blue);font-weight:800}.top-icon-btn{display:grid;width:30px;height:30px;place-items:center;border:1px solid var(--line);border-radius:4px;background:#fff;color:#4d6073}.course-page{min-height:calc(100vh - 42px);padding:18px 16px}.page-title{margin-bottom:12px}.page-title h2{margin:0 0 6px;font-size:18px}.page-title p{margin:0;color:var(--muted);font-size:12px}.course-list-panel{min-height:calc(100vh - 104px);border:1px solid var(--line);border-radius:6px;background:#fff}.category-page-body{display:grid;grid-template-columns:320px minmax(0,1fr);gap:16px;padding:14px}.category-edit-panel{display:grid;align-content:start;gap:14px;border:1px solid var(--line);border-radius:6px;background:#fbfcfe;padding:16px}.category-edit-panel h3{margin:0;font-size:15px}.form-actions{display:flex;justify-content:flex-end;gap:8px}.list-head{display:flex;align-items:center;justify-content:space-between;min-height:56px;border-bottom:1px solid var(--line);padding:10px 12px}.list-head h3{margin:0 0 4px;font-size:14px}.list-head span{color:var(--muted);font-size:12px}.list-actions{display:flex;align-items:center;gap:10px}.section-head{display:flex;justify-content:space-between;gap:18px;align-items:center;margin-bottom:14px}.section-head h2,.summary-panel h2{margin:0 0 8px;font-size:18px}.section-head p{margin:0;color:var(--muted);font-size:13px}.primary-btn,.ghost-btn,.wide-btn,.icon-action,.close-btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:32px;border:1px solid transparent;border-radius:4px;padding:0 12px}.primary-btn{background:var(--blue);color:#fff}.primary-btn:hover{background:var(--blue-dark)}.primary-btn:disabled{cursor:not-allowed;opacity:.65}.ghost-btn{background:#fff;border-color:var(--line);color:#344457}.ghost-btn:disabled{cursor:not-allowed;color:#9aa8b7;background:#f7f9fc;opacity:.72}.filters{display:flex;gap:10px;align-items:center;margin-bottom:10px}.filters select{width:104px}.filter-search{width:240px;height:38px;background:#fff}.course-table-wrap,.records-table-wrap{overflow:auto}.course-table,.records-table{width:100%;border-collapse:collapse}.course-table th,.course-table td,.records-table th,.records-table td{border-bottom:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:middle}.course-table th,.records-table th{background:#f7f9fc;color:#536579;font-size:12px;font-weight:700}.course-table td{color:#394b5f;font-size:12px}.course-table td:first-child{border-left:3px solid transparent}.course-table tbody tr:hover{background:#f6fbff}.course-table tbody tr:hover td:first-child{border-left-color:var(--blue)}.course-table strong{display:block;color:#1f3348;font-size:13px}.course-table span{display:block;margin-top:4px;color:#8391a2;font-size:11px}.table-cover{width:62px;height:40px;border-radius:4px;object-fit:cover}.table-link{display:block;max-width:340px;overflow:hidden;color:var(--blue);text-decoration:none;text-overflow:ellipsis;white-space:nowrap}.source-cell{display:grid;gap:6px;max-width:360px}.source-row{display:flex;align-items:center;gap:8px}.source-tag{display:inline-flex!important;align-items:center;gap:5px;width:fit-content;margin:0!important;border-radius:4px;padding:4px 8px;font-size:11px!important;font-weight:800}.source-tag.link{border:1px solid #b8d7f4;background:#eef7ff;color:var(--blue)!important}.source-tag.video{border:1px solid #c8ead7;background:#effaf4;color:var(--green)!important}.source-preview-btn{display:inline-flex;align-items:center;gap:4px;min-height:24px;border:1px solid #b8d7f4;border-radius:4px;background:#fff;color:var(--blue);padding:0 8px;font-size:11px;font-weight:800}.source-preview-btn:hover{background:#eef7ff}.user-cell{display:flex;align-items:center;gap:10px}.user-avatar{display:inline-grid!important;place-items:center;width:30px;height:30px;flex:none;margin:0!important;border-radius:50%;background:var(--blue-soft);color:var(--blue)!important}.record-btn{display:inline-flex;align-items:center;gap:6px;min-height:28px;border:1px solid #b8d7f4;border-radius:4px;background:#eef7ff;color:var(--blue);padding:0 9px}.record-actions{display:grid;gap:6px;min-width:116px}.completion-cell{display:flex;align-items:center;gap:10px;min-width:150px}.completion-bar{width:92px;height:6px;overflow:hidden;border-radius:999px;background:#edf1f6}.completion-bar span{display:block;height:100%;border-radius:inherit;background:#1674c6}.completion-cell strong{min-width:34px;color:#5d6d7e;font-size:12px}.table-actions{display:flex;gap:6px}.table-empty{height:92px;color:var(--muted)!important;text-align:center!important}.table-error{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:12px;border:1px solid #f3c9c9;border-radius:4px;background:#fff6f6;color:var(--danger);padding:10px 12px;font-size:12px}.table-pagination{display:flex;align-items:center;justify-content:space-between;min-height:54px;border-top:1px solid var(--line);color:var(--muted);padding:10px 12px;font-size:12px}.pagination-actions{display:flex;align-items:center;gap:8px}.pagination-actions select{width:96px;height:32px}.pagination-actions strong{min-width:58px;color:#344457;text-align:center}.records-modal{width:min(980px,calc(100vw - 48px))}.compact-records-modal{width:min(520px,calc(100vw - 48px))}.modal-head p{margin:6px 0 0;color:var(--muted);font-size:12px}.learned-tag{display:inline-flex;border:1px solid #bde7d2;border-radius:4px;background:#edf9f3;color:var(--green);padding:4px 8px}.not-started-tag{display:inline-flex;border:1px solid #d8e0ea;border-radius:4px;background:#f4f7fa;color:#6d7d8f;padding:4px 8px}.icon-action{width:28px;min-height:28px;border-color:var(--line);background:#fff;color:#4d6073;padding:0}.icon-action.danger{color:var(--danger)}.summary-panel{border-left:1px solid var(--line);background:#fff;padding:14px 8px}.metric{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:11px 0;color:var(--muted);font-size:12px}.metric strong{color:var(--blue);font-size:20px}.wide-btn{width:100%;margin-top:10px;background:var(--blue);color:#fff}.wide-btn.outline{border-color:var(--line);background:#fff;color:#344457}.modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;background:#0f172a73;z-index:10}.modal{display:grid;gap:16px;width:520px;border-radius:8px;background:#fff;padding:22px;box-shadow:0 24px 80px #0f172a38}.video-preview-modal{width:min(820px,calc(100vw - 80px))}.admin-video-player{display:block;width:100%;aspect-ratio:16 / 9;max-height:560px;border:1px solid var(--line);border-radius:6px;background:#0f172a}.modal-head,.modal-actions{display:flex;align-items:center;justify-content:space-between}.modal-head h2{margin:0;font-size:18px}.close-btn{width:32px;min-height:32px;background:#f1f5f9;color:#334155;padding:0}.upload-box{position:relative;display:flex;align-items:center;gap:8px;height:42px;border:1px dashed #9bb9d9;border-radius:4px;color:var(--blue);padding:0 12px}.upload-box input{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;cursor:pointer}.segmented-control{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.segmented-control button{display:inline-flex;align-items:center;justify-content:center;gap:7px;height:38px;border:1px solid var(--line);border-radius:4px;background:#fff;color:#536579;font-weight:800}.segmented-control button.active{border-color:var(--blue);background:var(--blue-soft);color:var(--blue)}.file-id-text{margin:-6px 0 0;border:1px solid #dce8f3;border-radius:4px;background:#f7fbff;color:#52677d;padding:8px 10px;font-size:12px;line-height:18px;word-break:break-all}.cover-preview{width:168px;height:96px;border:1px solid var(--line);border-radius:4px;object-fit:cover}.modal-actions{justify-content:flex-end;gap:10px}.error-text{min-height:18px;margin:0;color:var(--danger);font-size:13px}.drawer-mask{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;justify-content:flex-end;background:#0f172a57;z-index:12}.question-drawer{display:grid;grid-template-rows:auto auto minmax(0,1fr) auto;width:min(760px,calc(100vw - 160px));height:100vh;background:#fff;box-shadow:-20px 0 70px #0f172a33}.record-drawer{display:grid;grid-template-rows:auto minmax(0,1fr);width:min(620px,calc(100vw - 160px));height:100vh;background:#fff;box-shadow:-20px 0 70px #0f172a33}.drawer-head{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:18px 20px}.drawer-head h2{margin:0 0 6px;font-size:18px}.drawer-head p{margin:0;color:var(--muted);font-size:12px}.drawer-toolbar{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:#fbfcfe;padding:12px 20px;color:var(--muted);font-size:12px}.question-list{display:grid;align-content:start;gap:14px;overflow:auto;padding:16px 20px}.question-editor{display:grid;gap:12px;border:1px solid var(--line);border-radius:6px;background:#fbfcfe;padding:14px}.question-editor-head{display:flex;align-items:center;justify-content:space-between}.question-editor-head strong{font-size:14px}.question-row,.option-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.drawer-footer{display:flex;align-items:center;justify-content:space-between;gap:16px;border-top:1px solid var(--line);background:#fff;padding:14px 20px}.drawer-footer>div{display:flex;align-items:center;gap:10px}.drawer-empty{display:grid;place-items:center;color:var(--muted)}.drawer-table-wrap{overflow:auto;padding:14px}.practice-editor{display:grid;gap:10px;color:#526579;font-size:13px;font-weight:700}.practice-requirement-drawer{display:flex;flex-direction:column}.practice-requirement-drawer .practice-editor{padding:16px 20px 0}.practice-requirement-drawer .char-count,.practice-requirement-drawer .error-text{padding:0 20px}.practice-requirement-drawer .drawer-actions{margin-top:auto;border-top:1px solid var(--line);padding:14px 20px}.practice-editor textarea{min-height:260px;resize:vertical;border:1px solid var(--line);border-radius:8px;padding:14px;color:#1e3148;font:inherit;line-height:1.7;outline:none}.practice-editor textarea:focus{border-color:#1b75cf;box-shadow:0 0 0 3px #1b75cf1f}.char-count{text-align:right;color:#8ba0b4;font-size:12px}.drawer-actions{display:flex;justify-content:flex-end;gap:10px}.practice-record-drawer{width:min(760px,94vw)}.activity-dialog{width:min(580px,calc(100vw - 40px))}.battle-calendar{margin-bottom:14px;border:1px solid var(--line);border-radius:6px;background:#fff;padding:14px 16px 12px}.battle-calendar h3{margin:0 0 12px;color:#233c55;font-size:15px}.battle-month-list{display:grid;grid-template-columns:repeat(12,minmax(48px,1fr));gap:4px}.battle-month{display:grid;justify-items:center;gap:8px;min-height:54px;border:0;border-radius:5px;background:transparent;color:#72849a;padding:5px 2px;font-size:12px;font-weight:800}.battle-month:hover{background:#f1f8ff;color:var(--blue)}.battle-month i{width:6px;height:6px;border-radius:50%;background:#d4dee8}.battle-month.active{background:#dba62e;color:#fff;box-shadow:0 5px 12px #c28a1633}.battle-month.active i{background:#fff}.activity-config-dialog{grid-template-rows:auto minmax(0,1fr) auto auto;width:min(640px,calc(100vw - 40px));max-height:calc(100vh - 48px)}.activity-config-drawer{display:grid;grid-template-rows:auto minmax(0,1fr) auto auto;width:min(900px,calc(100vw - 40px));background:#fff;box-shadow:-20px 0 70px #0f172a33}.activity-config-drawer .activity-form-scroll{padding:18px 20px}.activity-config-drawer .drawer-actions{border-top:1px solid var(--line);padding:14px 20px}.activity-targets>div{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:10px}.activity-time-range{display:grid;gap:10px}.activity-time-range>div{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.activity-time-range label,.activity-targets label{display:grid;gap:6px;color:var(--muted);font-size:12px}.activity-store-select{display:grid;gap:10px}.store-select-head,.store-select-tools{display:flex;align-items:center;justify-content:space-between;gap:12px}.store-select-head span{color:var(--muted);font-size:12px}.store-select-tools input[type=text],.store-select-tools input:not([type]){flex:1}.store-select-tools label{display:flex;align-items:center;gap:6px;white-space:nowrap;font-size:12px}.store-select-tools input[type=checkbox],.store-select-list input[type=checkbox]{width:16px;height:16px;min-height:0;margin:0;padding:0}.store-select-list{display:grid;max-height:220px;overflow:auto;border:1px solid var(--line);border-radius:6px}.store-select-list>label{display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--line);padding:10px 12px}.store-select-list>label:last-child{border-bottom:0}.store-select-list span{display:grid;gap:2px}.store-select-list small{color:var(--muted)}.activity-form-scroll{display:grid;align-content:start;gap:16px;overflow-y:auto;padding-right:4px}.activity-form-scroll textarea{min-height:110px;resize:vertical}.activity-upload-group{display:grid;gap:10px;border-top:1px solid var(--line);padding-top:14px}.activity-upload-group>div{display:flex;align-items:baseline;justify-content:flex-start;gap:10px}.activity-upload-group strong{color:#314a63;font-size:13px}.activity-upload-group>div span{color:#8699ac;font-size:12px}.activity-image-preview-list{display:flex;gap:10px}.activity-image-preview-list img{width:90px;height:66px;border:1px solid var(--line);border-radius:5px;object-fit:cover}.activity-time-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.activity-material-preview{display:block;width:100%;max-height:190px;border:1px solid var(--line);border-radius:6px;background:#0f172a;object-fit:contain}.activity-material-placeholder{display:flex;align-items:center;justify-content:center;gap:8px;min-height:72px;border:1px dashed #c8d7e7;border-radius:6px;color:#8293a6;font-size:12px}.activity-create-tasks{display:grid;gap:8px;max-height:270px;overflow:auto;border-top:1px solid var(--line);padding-top:14px}.activity-create-tasks-head{display:flex;align-items:center;justify-content:space-between;color:#314a63;font-size:13px}.activity-create-tasks-hint{color:#8797a9;font-size:12px}.activity-task-drawer{grid-template-rows:auto auto minmax(0,1fr) auto;width:min(680px,calc(100vw - 120px))}.activity-task-list{display:grid;align-content:start;gap:10px;overflow:auto;padding:16px 20px}.activity-task-editor{display:grid;grid-template-columns:62px minmax(0,1fr) 28px;align-items:center;gap:10px;border:1px solid var(--line);border-radius:6px;background:#fbfcfe;padding:10px}.activity-task-editor strong{color:#36516c;font-size:12px}.activity-table td:nth-child(12)>span{margin-top:6px}.activity-total-cell{min-width:68px;color:#24435f;font-weight:800;white-space:nowrap}.activity-month-cell{min-width:72px;color:#36516c;font-weight:800;white-space:nowrap}.activity-plan-cell{display:block!important;max-width:180px;overflow:hidden;color:#52677d!important;font-size:12px!important;line-height:18px;text-overflow:ellipsis;white-space:nowrap}.activity-data-summary,.activity-store-data{display:grid;gap:4px;color:#74869a;font-size:12px}.activity-data-summary strong,.activity-store-data strong{margin-left:5px;color:#24435f}.activity-store-data{grid-template-columns:repeat(3,max-content);gap:14px;border-top:1px solid #edf1f5;padding-top:7px}.activity-date{white-space:nowrap}.activity-record-drawer{width:min(700px,94vw)}.activity-record-card{gap:7px}@media (max-width: 700px){.activity-time-row{grid-template-columns:1fr}.activity-task-drawer{width:100vw}}.practice-record-list{display:grid;align-content:start;gap:8px;overflow-y:auto;padding:10px 12px}.practice-record-card{display:grid;gap:8px;border:1px solid var(--line);border-radius:8px;background:#fff;padding:10px 12px}.practice-record-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.practice-record-head>div{display:grid;gap:2px}.practice-record-head strong{color:#1e3148;font-size:14px}.practice-record-head span{color:#6b7f94;font-size:12px}.practice-status{border-radius:999px;padding:4px 9px;background:#eef4fb;color:#63758a;font-size:11px;font-weight:800;white-space:nowrap}.practice-status.pending{background:#fff7df;color:#a06900}.practice-status.approved{background:#e8f8f0;color:#1c8f5c}.practice-status.rejected{background:#fff0f0;color:#c0392b}.practice-description{margin:0;color:#33485f;font-size:13px;line-height:1.45;white-space:pre-wrap}.practice-description.muted{display:none}.practice-meta{display:flex;flex-wrap:wrap;gap:10px;color:#8ba0b4;font-size:12px}.reject-reason{margin:0;border-radius:8px;background:#fff6f6;padding:8px 10px;color:#c0392b;font-size:12px;line-height:1.6}.practice-review-actions{display:flex;gap:8px}.reject-editor{display:grid;gap:10px;border-radius:8px;background:#fff8f8;padding:12px}.reject-editor textarea{min-height:88px;resize:vertical;border:1px solid #efcaca;border-radius:8px;padding:10px;color:#33485f;font:inherit;outline:none}.record-btn.success{border-color:#ccebdd;background:#f1fbf6;color:#168354}.record-btn.danger{border-color:#f0cccc;background:#fff5f5;color:#c0392b}