html,body{width:100%;height:100%}input::-ms-clear,input::-ms-reveal{display:none}*,*:before,*:after{box-sizing:border-box}html{font-family:sans-serif;line-height:1.15;-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%;-ms-overflow-style:scrollbar;-webkit-tap-highlight-color:rgba(0,0,0,0)}@-ms-viewport{width:device-width}body{margin:0}[tabindex="-1"]:focus{outline:none}hr{box-sizing:content-box;height:0;overflow:visible}h1,h2,h3,h4,h5,h6{margin-top:0;margin-bottom:.5em;font-weight:500}p{margin-top:0;margin-bottom:1em}abbr[title],abbr[data-original-title]{-webkit-text-decoration:underline dotted;text-decoration:underline dotted;border-bottom:0;cursor:help}address{margin-bottom:1em;font-style:normal;line-height:inherit}input[type=text],input[type=password],input[type=number],textarea{-webkit-appearance:none}ol,ul,dl{margin-top:0;margin-bottom:1em}ol ol,ul ul,ol ul,ul ol{margin-bottom:0}dt{font-weight:500}dd{margin-bottom:.5em;margin-left:0}blockquote{margin:0 0 1em}dfn{font-style:italic}b,strong{font-weight:bolder}small{font-size:80%}sub,sup{position:relative;font-size:75%;line-height:0;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}pre,code,kbd,samp{font-size:1em;font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,Courier,monospace}pre{margin-top:0;margin-bottom:1em;overflow:auto}figure{margin:0 0 1em}img{vertical-align:middle;border-style:none}a,area,button,[role=button],input:not([type=range]),label,select,summary,textarea{touch-action:manipulation}table{border-collapse:collapse}caption{padding-top:.75em;padding-bottom:.3em;text-align:left;caption-side:bottom}input,button,select,optgroup,textarea{margin:0;color:inherit;font-size:inherit;font-family:inherit;line-height:inherit}button,input{overflow:visible}button,select{text-transform:none}button,html [type=button],[type=reset],[type=submit]{-webkit-appearance:button}button::-moz-focus-inner,[type=button]::-moz-focus-inner,[type=reset]::-moz-focus-inner,[type=submit]::-moz-focus-inner{padding:0;border-style:none}input[type=radio],input[type=checkbox]{box-sizing:border-box;padding:0}input[type=date],input[type=time],input[type=datetime-local],input[type=month]{-webkit-appearance:listbox}textarea{overflow:auto;resize:vertical}fieldset{min-width:0;margin:0;padding:0;border:0}legend{display:block;width:100%;max-width:100%;margin-bottom:.5em;padding:0;color:inherit;font-size:1.5em;line-height:inherit;white-space:normal}progress{vertical-align:baseline}[type=number]::-webkit-inner-spin-button,[type=number]::-webkit-outer-spin-button{height:auto}[type=search]{outline-offset:-2px;-webkit-appearance:none}[type=search]::-webkit-search-cancel-button,[type=search]::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{font:inherit;-webkit-appearance:button}output{display:inline-block}summary{display:list-item}template{display:none}[hidden]{display:none!important}mark{padding:.2em;background-color:#feffe6}html,body,#root{width:100%;height:100%;margin:0}body{background:#f7f5ef;color:#2b3a33;font-family:Noto Sans SC,Microsoft YaHei,sans-serif}.teacher-portal{min-height:100vh;background:#f7f5ef}.portal-content{min-width:0;padding:28px 34px 40px}.portal-header{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:22px}.portal-header h2.ant-typography{margin:0 0 4px!important;color:#2b3a33;font-family:"Noto Serif SC",Songti SC,serif;font-size:25px!important;line-height:1.35;font-weight:700}.portal-header .ant-typography{color:#8a927f;font-size:13px}.portal-header>.ant-btn{min-height:42px;padding-inline:22px;font-weight:700}.portal-section{margin-top:18px}.parent-page{min-height:100vh;padding:32px;background:#f5f3f8}.parent-top{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:24px}.parent-top h2{margin-bottom:4px!important}@media (max-width: 900px){.portal-content,.parent-page{padding:16px}}.login-shell{min-height:100%;align-items:center;justify-content:center;background:linear-gradient(135deg,#f6f2ff,#f4f7fb 55%,#eef7f5)}.login-panel{width:420px;padding:32px;background:#fff;border:1px solid #e8e0f4;border-radius:8px;box-shadow:0 16px 44px #31254a1f}.app-shell{min-height:100%;background:#f5f3f8}.sidebar{height:100vh;padding:24px 16px;border-right:1px solid #e7e2ed}.teacher-name{margin-top:28px;font-size:18px;font-weight:700;color:#251a34}.teacher-role{margin-bottom:24px;color:#6d6378}.content{min-width:0;padding:24px}.page-header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}.toolbar-panel,.question-list-panel,.publish-panel,.import-panel,.release-panel{background:#fff;border:1px solid #e7e2ed;border-radius:8px}.toolbar-panel{padding:14px 16px 4px;margin-bottom:16px}.workspace-grid{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:16px;align-items:start}.question-list-panel{min-width:0;padding:8px}.right-stack{display:flex;flex-direction:column;gap:16px;position:sticky;top:24px}.publish-panel,.import-panel,.release-panel{padding:18px}.panel-header-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}.import-task-list,.release-list{display:grid;gap:10px;margin-top:14px}.import-task,.release-item{padding:10px 12px;border:1px solid #ede7f5;border-radius:8px;background:#fbfafd}.import-task-topline,.release-topline{display:flex;align-items:flex-start;justify-content:space-between;gap:8px}.import-task-meta,.release-meta{margin-top:6px;color:#6d6378;font-size:12px;line-height:1.5}.import-task-error{margin-top:6px;color:#b42318;font-size:12px;line-height:1.5;word-break:break-word}.release-notes{margin-top:6px;color:#261c34;font-size:12px;line-height:1.5;white-space:pre-wrap}.question-cell{min-width:0}.question-title{margin-top:8px;color:#261c34;line-height:1.55}.selected-question-card{max-height:360px;overflow:hidden}.selected-question-list{max-height:250px;overflow-y:auto}.selected-question-item{display:flex;align-items:flex-start;justify-content:space-between;gap:8px;padding:9px 0;border-bottom:1px solid #eee9f3;line-height:1.5}.selected-question-item span{display:-webkit-box;min-width:0;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:2}.question-preview{max-height:420px;margin-top:18px;overflow:auto;white-space:pre-wrap;font-size:16px;line-height:1.7}.question-source{margin-top:6px;color:#7d7488;font-size:12px}.filter-select{width:132px}.keyword-input{width:180px}.full-width{width:100%}@media (max-width: 1100px){.workspace-grid{grid-template-columns:1fr}.right-stack{position:static}}.private-loading{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;background:#f6f7fb}.private-app-shell{min-height:100vh;background:#f6f7fb}.private-sidebar{position:sticky!important;top:0;height:100vh;padding:26px 20px;border-right:1px solid #e8e9ef}.private-brand-mark{float:left;width:38px;height:38px;margin:-2px 10px 0 0;border-radius:12px;background:linear-gradient(145deg,#7b43df,#5420b3);color:#fff;font-size:21px;font-weight:800;line-height:38px;text-align:center;box-shadow:0 8px 18px #6f35d440}.private-sidebar h3.ant-typography{margin:0 0 2px}.private-nav-active{display:flex;align-items:center;gap:10px;margin:34px 0 20px;padding:12px 14px;border-radius:10px;background:#f0e9fb;color:#5e27bf;font-weight:700}.private-sidebar-stats{display:grid;gap:8px;padding:16px 0;border-top:1px solid #ececf1;border-bottom:1px solid #ececf1}.private-sidebar-stats div{display:flex;align-items:baseline;justify-content:space-between}.private-sidebar-stats strong{color:#241b31;font-size:22px}.private-sidebar-stats span{color:#77717f;font-size:13px}.private-draft-note{margin:18px 0;padding:12px;border-radius:10px;background:#fff9e9;color:#725b24;font-size:12px}.private-draft-note p{margin:7px 0 0;line-height:1.5}.private-content{min-width:0;padding:24px 28px 32px}.private-page-header,.private-mode-row,.private-results-header,.private-cart-title{display:flex;align-items:center;justify-content:space-between;gap:16px}.private-page-header h2.ant-typography{margin:0 0 2px}.private-selected-count{display:flex;align-items:baseline;gap:7px;padding:10px 18px;border:1px solid #e6def4;border-radius:12px;background:#fff;color:#6d6577}.private-selected-count strong{color:#6f35d4;font-size:25px}.private-mode-row{margin:20px 0 16px}.private-workspace{display:grid;grid-template-columns:294px minmax(520px,1fr) 230px;gap:14px;align-items:start}.private-workspace.graph-mode{grid-template-columns:294px minmax(620px,1fr)}.private-filter-panel,.private-results-panel,.private-cart-panel{border:1px solid #e6e7ed;border-radius:12px;background:#fff;box-shadow:0 5px 18px #231c3109}.private-filter-panel{padding:17px}.private-filter-panel h5.ant-typography{margin:0 0 14px}.private-filter-panel .ant-input-search{margin-top:10px}.teacher-picker-shell .private-filter-panel>.ant-select{margin-bottom:10px}.teacher-picker-shell .private-filter-panel>.ant-btn{margin-top:10px}.teacher-picker-stats{margin-top:18px}.teacher-question-workspace .private-cart-panel{min-width:0}.teacher-question-workspace .selected-question-list.compact{max-height:290px;margin-top:12px}.teacher-question-workspace .selected-question-item{font-size:12px}.private-full-width{width:100%}.private-subject-picker{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:12px}.private-subject-picker button{min-width:0;padding:10px;border:1px solid #e7e2ed;border-radius:9px;background:#faf9fc;color:#4d4655;text-align:left;cursor:pointer}.private-subject-picker button:first-child{grid-column:1 / -1}.private-subject-picker button:hover,.private-subject-picker button.active{border-color:#cdb9ef;background:#f2ecfb;box-shadow:0 3px 10px #6f35d414}.private-subject-picker button span{display:flex;align-items:center;gap:6px;font-weight:700}.private-subject-picker button small{display:block;margin-top:4px;overflow:hidden;color:#8a8291;font-size:11px;text-overflow:ellipsis;white-space:nowrap}.private-subject-picker i{width:8px;height:8px;border-radius:50%;background:#8b8491}.private-subject-picker .math i{background:#6f35d4}.private-subject-picker .physics i{background:#1677ff}.private-subject-picker .chemistry i{background:#0b8f72}.private-letter-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:5px;margin-top:14px}.private-letter-grid button{height:29px;padding:0;border:0;border-radius:7px;background:#f4f4f7;color:#686270;cursor:pointer;font-size:12px}.private-letter-grid button:first-child{grid-column:span 2}.private-letter-grid button:hover,.private-letter-grid button.active{background:#6f35d4;color:#fff}.private-paper-total{margin:14px 0 8px;color:#8a8490;font-size:12px}.private-paper-list{max-height:540px;overflow:auto;display:grid;gap:5px;margin:0 -5px;padding:0 5px}.private-collection-list{margin-inline:-10px;padding-inline:0}.private-collection-list .ant-collapse{border:0;background:transparent}.private-collection-list .ant-collapse-item{border-bottom-color:#eeeaf3}.private-collection-list .ant-collapse-header{padding:9px 8px!important}.private-collection-list .ant-collapse-content-box{padding:2px 3px 9px!important}.private-collection-title{min-width:0;display:flex;align-items:flex-start;justify-content:space-between;gap:7px}.private-collection-title strong{color:#3a3242;font-size:12px;line-height:1.45}.private-collection-title em{min-width:20px;padding:1px 5px;border-radius:9px;background:#eee7f8;color:#6f35d4;font-size:10px;font-style:normal;text-align:center}.private-paper-item{width:100%;display:flex;align-items:flex-start;gap:9px;padding:10px;border:1px solid transparent;border-radius:9px;background:transparent;text-align:left;cursor:pointer}.private-paper-item:hover{background:#f8f6fb}.private-paper-item.active{border-color:#d9c9f3;background:#f2ecfb}.paper-item-body{min-width:0;display:block}.paper-item-body strong{display:-webkit-box;overflow:hidden;color:#2e2736;font-size:13px;line-height:1.45;-webkit-box-orient:vertical;-webkit-line-clamp:2}.paper-item-body small{display:block;margin-top:4px;color:#8b8491}.subject-dot{flex:0 0 auto;width:8px;height:8px;margin-top:6px;border-radius:50%;background:#6f35d4}.subject-dot.physics{background:#1677ff}.subject-dot.chemistry{background:#0b8f72}.private-closure-tip{margin:13px 0 5px;padding:9px 10px;border-radius:8px;background:#f5f0fc;color:#665771;font-size:12px;line-height:1.55}.private-knowledge-groups{max-height:560px;overflow-y:auto;margin:0 -10px}.private-knowledge-groups .ant-collapse-header{padding-inline:8px!important}.private-knowledge-groups em{color:#9a93a1;font-size:11px;font-style:normal}.private-node-list{display:grid;gap:9px}.private-node-list .ant-checkbox-wrapper{margin-inline-start:0;line-height:1.35}.private-results-panel{min-width:0;overflow:hidden}.private-results-header{min-height:78px;padding:14px 18px;border-bottom:1px solid #ececf1}.private-results-header h4.ant-typography{max-width:720px;margin:0 0 3px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.private-initial-badge{flex:0 0 auto;width:38px;height:38px;border-radius:11px;background:#efe8fa;color:#6f35d4;font-size:18px;font-weight:800;line-height:38px;text-align:center}.private-results-panel .ant-table-wrapper{padding:0 8px 8px}.private-question-cell{padding:3px 0}.private-question-row{cursor:pointer}.private-detail-link.ant-btn{height:auto;padding:0}.private-question-stem{display:-webkit-box;margin-top:8px;overflow:hidden;color:#2d2734;line-height:1.55;-webkit-box-orient:vertical;-webkit-line-clamp:3}.private-question-source{margin-top:5px;color:#8b8491;font-size:12px}.private-question-images{display:flex;align-items:center;gap:8px;margin-top:10px}.private-question-images img{width:auto;max-width:180px;height:92px;border:1px solid #e4dcef;border-radius:8px;background:#fff;object-fit:contain}.private-question-images>span{color:#756e7b;font-size:12px}.private-question-detail .ant-descriptions-item-content{word-break:break-word}.private-detail-stem{color:#24202a;font-size:16px;line-height:1.8;white-space:pre-wrap}.private-detail-options{display:grid;gap:10px;margin-top:18px}.private-detail-images{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px}.private-detail-images a{display:flex;min-height:120px;align-items:center;justify-content:center;padding:8px;border:1px solid #e4dcef;border-radius:10px;background:#fff}.private-detail-images img{display:block;width:100%;max-height:420px;object-fit:contain}.private-detail-option{display:grid;grid-template-columns:30px minmax(0,1fr);align-items:start;line-height:1.65}.private-detail-option>span{width:25px;height:25px;border:1px solid #d9ccec;border-radius:50%;color:#6f35d4;font-weight:700;line-height:23px;text-align:center}.private-detail-answer{padding:14px;border:1px solid #e4dbf2;border-radius:10px;background:#faf8fd}.private-answer-line{display:grid;grid-template-columns:58px 1fr;color:#28212e;font-size:16px}.private-analysis{margin-top:13px;padding-top:13px;border-top:1px solid #ebe4f2;line-height:1.75;white-space:pre-wrap}.private-answer-confidence{margin-top:12px}.private-detail-path{display:grid;gap:5px;margin-top:24px;padding:12px;border-radius:8px;background:#f6f6f8;color:#756e7b;font-size:12px;word-break:break-all}.private-math-inline .katex{font-size:1.02em}.private-math-block{display:block;margin:7px 0;overflow-x:auto}.private-cart-panel{position:sticky;top:24px;padding:17px}.private-cart-title h4.ant-typography{margin:0}.private-cart-summary{display:flex;align-items:baseline;justify-content:space-between;margin:18px 0 4px;padding:14px;border-radius:10px;background:#f6f2fb;color:#6c6574}.private-cart-summary strong{color:#6f35d4;font-size:27px}.private-cart-panel>.ant-btn-primary{margin-top:18px}.private-rule-card{margin-top:18px;padding:12px;border:1px solid #e4dbf2;border-radius:9px;background:#fcfaff}.private-rule-card strong{color:#5b2aa9;font-size:13px}.private-rule-card p{margin:6px 0 0;color:#756c7d;font-size:12px;line-height:1.55}.private-graph-legend{display:flex;flex-wrap:wrap;gap:11px;margin-top:14px;color:#726b79;font-size:12px}.private-cluster-picker{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-top:13px}.private-cluster-picker button{min-width:0;display:flex;align-items:center;justify-content:space-between;gap:5px;padding:9px 8px;border:1px solid #e6e2eb;border-left:3px solid var(--cluster-color);border-radius:8px;background:#fff;color:#5f5767;cursor:pointer;font-size:11px;text-align:left}.private-cluster-picker button:hover,.private-cluster-picker button.active{border-color:var(--cluster-color);background:color-mix(in srgb,var(--cluster-color) 8%,white);color:#2f2835}.private-cluster-picker button span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.private-cluster-picker button strong{flex:0 0 auto;color:var(--cluster-color)}.private-graph-legend span{display:inline-flex;align-items:center;gap:5px}.private-graph-legend i{width:9px;height:9px;border-radius:50%;background:#efe6fb;border:2px solid #7a42d8}.private-graph-legend i.grade-8{background:#e5f0ff;border-color:#287be0}.private-graph-legend i.grade-9{background:#e1f5ef;border-color:#168b70}.private-node-detail{margin-top:15px;padding:14px;border:1px solid #e8e1f1;border-radius:10px;background:#fbf9fd}.private-node-detail.empty{color:#99929f;text-align:center}.private-node-detail h4.ant-typography{margin:10px 0 3px}.private-node-detail p{margin:0 0 15px;color:#827a89;font-size:12px}.private-node-detail>strong{display:block;margin:11px 0 6px;color:#554c5d;font-size:12px}.private-graph-scroll{height:720px;overflow:auto;background-color:#fbfbfd;background-image:radial-gradient(#dfdae7 .75px,transparent .75px);background-size:18px 18px}.private-graph-svg{display:block}.private-graph-edges path{fill:none;stroke:#c9c1d4;stroke-width:1.25;opacity:.72}.private-graph-edges path.active{stroke:#6f35d4;stroke-width:2.2;opacity:1}.private-graph-nodes g{cursor:pointer}.private-graph-nodes rect{fill:#f7f1ff;stroke:#b99be9;stroke-width:1.2;filter:drop-shadow(0 2px 3px rgba(54,35,82,.08))}.private-graph-nodes .grade-8 rect{fill:#f0f6ff;stroke:#8db9ef}.private-graph-nodes .grade-9 rect{fill:#eef9f6;stroke:#86cbbb}.private-graph-nodes g:hover rect,.private-graph-nodes g.active rect{fill:#6f35d4;stroke:#5120aa;stroke-width:2}.private-graph-nodes text{fill:#31263e;font-size:12px;font-weight:700;pointer-events:none}.private-graph-nodes text.meta{fill:#897d94;font-size:9px;font-weight:400}.private-graph-nodes g:hover text,.private-graph-nodes g.active text,.private-graph-nodes g:hover text.meta,.private-graph-nodes g.active text.meta{fill:#fff}@media (max-width: 1450px){.private-workspace{grid-template-columns:275px minmax(480px,1fr)}.private-cart-panel{position:static;grid-column:1 / -1}}@media (max-width: 980px){.private-sidebar{display:none}.private-content{padding:18px}.private-workspace{grid-template-columns:1fr}}:root{--brand: #2f5d4e;--brand-deep: #24443a;--brand-tint: #eaf1e7;--brand-tint-2: #eff6ef;--accent: #f0c9a8;--accent-ink: #5c3317;--warn: #b4552d;--warn-tint: #fbefe3;--gold: #d9a441;--gold-tint: #f8f0dc;--info: #2d6fc4;--info-tint: #eaf2fb;--ink: #2b3a33;--ink-2: #57655c;--ink-3: #8a927f;--paper: #f7f5ef;--card: #fff;--card-warm: #fdfbf4;--line: #e7dfcc;--line-soft: #f1ebdb;--thead: #fbf9f1;--shadow-card: 0 2px 10px rgba(64, 54, 32, .05)}.portal-sider,.private-sidebar{position:sticky!important;top:0;height:100vh;padding:24px 14px 18px;background:linear-gradient(170deg,var(--brand),var(--brand-deep))!important;border:0;color:#f3efe0;overflow:auto}.portal-sider .ant-layout-sider-children,.private-sidebar .ant-layout-sider-children{display:flex;min-height:100%;flex-direction:column}.portal-brand{display:flex;align-items:center;gap:11px;padding:0 9px}.portal-brand-mark{display:inline-flex;width:36px;height:36px;flex:0 0 auto;align-items:center;justify-content:center;border-radius:10px;background:#efebdc;color:var(--brand);font-family:"Noto Serif SC",Songti SC,serif;font-size:19px;font-weight:800;box-shadow:0 5px 14px #0000002e}.portal-brand>div{min-width:0;display:flex;flex-direction:column}.portal-brand strong{color:#f4f0e2;font-family:"Noto Serif SC",Songti SC,serif;font-size:17px;letter-spacing:1px;white-space:nowrap}.portal-brand small{margin-top:2px;color:#9fb5a6;font-size:10px;letter-spacing:3px}.portal-org{display:flex;align-items:center;justify-content:space-between;margin:20px 8px 14px;padding:8px 11px;border:1px solid rgba(240,201,168,.24);border-radius:9px;background:#f0c9a81a}.portal-org span{color:#b9cdbf;font-size:10px;letter-spacing:2px}.portal-org b{color:#f0c9a8;font-size:12px}.teacher-card{display:flex;align-items:center;gap:10px;margin:0 5px 16px;padding:12px;border:1px solid rgba(255,255,255,.1);border-radius:11px;background:#ffffff12;color:#f3efe0}.teacher-avatar{display:inline-flex;width:36px;height:36px;flex:0 0 auto;align-items:center;justify-content:center;border-radius:50%;background:#dce8dd;color:var(--brand);font-family:"Noto Serif SC",Songti SC,serif;font-weight:800}.teacher-card>div{display:flex;min-width:0;flex-direction:column}.teacher-card b{color:#fff;font-size:13px}.teacher-card span:not(.teacher-avatar){margin-top:2px;color:#9fb5a6;font-size:11px}.portal-nav,.private-nav-list{display:grid;gap:4px}.portal-nav button,.private-nav-list button{width:100%;display:flex;align-items:center;gap:11px;padding:11px 14px;border:0;border-radius:10px;background:transparent;color:#9fb5a6;cursor:pointer;font-family:inherit;font-size:13.5px;text-align:left;transition:background .18s ease,color .18s ease,transform .18s ease}.portal-nav button:hover,.private-nav-list button:hover{background:#ffffff12;color:#f3efe0;transform:translate(2px)}.portal-nav button.active,.private-nav-list button.active{background:#efebdc;color:var(--brand);font-weight:700;box-shadow:0 4px 10px #0000002b}.portal-nav button .ant-badge{margin-left:auto}.portal-nav button .ant-badge-count{background:var(--warn);box-shadow:none}.portal-icon{flex:0 0 auto}.portal-sider-footer{display:grid;gap:8px;margin-top:auto;padding-top:18px}.portal-sider-footer .ant-btn,.private-back-button.ant-btn{border-color:#fff3;background:transparent;color:#b9cdbf}.portal-sider-footer .ant-btn:hover,.private-back-button.ant-btn:hover{border-color:#efebdc!important;background:#ffffff14!important;color:#f3efe0!important}.portal-logout{display:flex;align-items:center;justify-content:center;gap:7px;padding:8px;border:0;background:transparent;color:#9fb5a6;cursor:pointer;font-family:inherit}.portal-logout:hover{color:#f0c9a8}.teacher-login-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:40px;background:radial-gradient(circle at 15% 18%,rgba(47,93,78,.09),transparent 28%),radial-gradient(circle at 85% 80%,rgba(240,201,168,.16),transparent 25%),#f7f5ef}.teacher-login-card{width:min(980px,92vw);min-height:570px;display:grid;grid-template-columns:1.05fr .95fr;overflow:hidden;border:1px solid var(--line);border-radius:24px;background:#fff;box-shadow:0 28px 70px #2e3a3129}.teacher-login-brand{position:relative;display:flex;flex-direction:column;padding:42px 48px;overflow:hidden;background:linear-gradient(155deg,#315f50,#24443a 72%,#1f3b32);color:#f3efe0}.teacher-login-brand:before,.teacher-login-brand:after{content:"";position:absolute;border:1px solid rgba(255,255,255,.08);border-radius:50%}.teacher-login-brand:before{width:440px;height:440px;right:-235px;top:-170px}.teacher-login-brand:after{width:260px;height:260px;left:-150px;bottom:-100px}.login-brand-top{position:relative;z-index:1;display:flex;align-items:center;gap:12px;font-family:"Noto Serif SC",Songti SC,serif;font-size:18px;font-weight:700;letter-spacing:2px}.login-brand-mark{display:inline-flex;width:38px;height:38px;align-items:center;justify-content:center;border-radius:11px;background:#efebdc;color:var(--brand);font-size:20px}.login-brand-copy{position:relative;z-index:1;margin:auto 0}.login-brand-kicker{color:#f0c9a8;font-size:10px;font-weight:700;letter-spacing:3px}.login-brand-copy h1{margin:18px 0;font-family:"Noto Serif SC",Songti SC,serif;font-size:37px;line-height:1.5;letter-spacing:2px}.login-brand-copy p{color:#b9cdbf;font-size:13px;line-height:1.9}.login-brand-footer{position:relative;z-index:1;display:flex;align-items:center;gap:8px;color:#b9cdbf;font-size:12px}.login-brand-footer i{width:7px;height:7px;border-radius:50%;background:#f0c9a8;box-shadow:0 0 0 4px #f0c9a81f}.teacher-login-form{display:flex;flex-direction:column;justify-content:center;padding:50px 58px}.teacher-login-heading{margin-bottom:30px}.teacher-login-heading h2{margin:0;color:var(--ink);font-family:"Noto Serif SC",Songti SC,serif;font-size:25px}.teacher-login-heading p{margin:7px 0 0;color:var(--ink-3);font-size:13px}.teacher-login-form .ant-form-item{margin-bottom:20px}.teacher-login-form .ant-form-item-label label{color:var(--ink-2);font-weight:600}.teacher-login-form .ant-input-affix-wrapper,.teacher-login-form .ant-input{border-color:var(--line);background:var(--card-warm)}.teacher-login-form .ant-btn-primary{height:46px;margin-top:6px;font-weight:700}.teacher-login-help{display:flex;justify-content:space-between;margin-top:20px;color:var(--ink-3);font-size:11px}.teacher-login-help a{color:var(--brand);font-weight:700}.portal-stat-card{width:100%;min-height:150px;position:relative;display:flex;flex-direction:column;align-items:flex-start;padding:20px 22px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink);text-align:left;box-shadow:var(--shadow-card)}.portal-stat-card:disabled{cursor:default}.portal-stat-card.actionable{cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}.portal-stat-card.actionable:hover{border-color:#b8c9b8;box-shadow:0 10px 24px #2f5d4e1a;transform:translateY(-2px)}.portal-stat-icon{position:absolute;top:18px;right:18px;display:inline-flex;width:35px;height:35px;align-items:center;justify-content:center;border-radius:10px;background:var(--brand-tint);color:var(--brand)}.portal-stat-card.warn .portal-stat-icon{background:var(--warn-tint);color:var(--warn)}.portal-stat-title{color:var(--ink-3);font-size:12px}.portal-stat-card strong{margin-top:9px;color:var(--ink);font-family:"Noto Serif SC",Songti SC,serif;font-size:32px;line-height:1}.portal-stat-card.warn strong{color:var(--warn)}.portal-stat-note{display:flex;align-items:center;gap:5px;margin-top:auto;color:var(--ink-3);font-size:11.5px}.portal-stat-card.actionable .portal-stat-note{color:var(--brand);font-weight:700}.portal-table-card.ant-card,.portal-empty-card.ant-card{border-color:var(--line);box-shadow:var(--shadow-card)}.portal-table-card>.ant-card-head{min-height:58px;border-bottom-color:var(--line-soft)}.portal-table-card>.ant-card-head .ant-card-head-title>div{display:flex;flex-direction:column}.portal-table-card>.ant-card-head .ant-card-head-title strong{color:var(--ink);font-family:"Noto Serif SC",Songti SC,serif;font-size:16px}.portal-table-card>.ant-card-head .ant-card-head-title span{margin-top:3px;color:var(--ink-3);font-size:11px;font-weight:400}.portal-table-card>.ant-card-body{padding:12px 20px 18px}.portal-table-card .ant-table-thead>tr>th{border-bottom-color:var(--line);font-size:12px;font-weight:700}.portal-table-card .ant-table-tbody>tr>td{border-bottom-color:var(--line-soft)}.task-name-cell{display:flex;min-width:0;flex-direction:column;gap:4px}.task-name-cell b{color:var(--ink);font-size:13.5px}.task-name-cell span{color:var(--ink-3);font-size:10.5px}.subject-tag{border:0;background:var(--brand-tint);color:var(--brand)}.task-progress,.student-task-progress{display:flex;align-items:center;gap:10px}.task-progress .ant-progress,.student-task-progress .ant-progress{width:110px;margin:0}.task-progress>span,.student-task-progress>span{color:var(--ink-2);font-size:11px;white-space:nowrap}.pending-count{color:var(--warn);font-size:14px}.muted-count{color:var(--ink-3);font-weight:500}.deadline-urgent{color:var(--warn);font-weight:700}.student-progress-drawer .ant-drawer-header{border-bottom-color:var(--line);background:var(--card-warm)}.student-progress-drawer .ant-drawer-title>div{display:flex;flex-direction:column}.student-progress-drawer .ant-drawer-title b{color:var(--ink);font-family:"Noto Serif SC",Songti SC,serif;font-size:16px}.student-progress-drawer .ant-drawer-title span{margin-top:3px;color:var(--ink-3);font-size:11px;font-weight:400}.drawer-summary{display:grid;grid-template-columns:repeat(4,1fr);gap:9px;margin-bottom:18px}.drawer-summary>span{display:flex;align-items:center;gap:6px;padding:10px 11px;border-radius:9px;font-size:11px}.drawer-summary i{width:7px;height:7px;border-radius:50%}.drawer-summary b{margin-left:auto;font-size:15px}.drawer-summary .done{background:var(--brand-tint);color:var(--brand)}.drawer-summary .done i{background:var(--brand)}.drawer-summary .waiting{background:var(--gold-tint);color:#a0761b}.drawer-summary .waiting i{background:var(--gold)}.drawer-summary .doing{background:var(--info-tint);color:var(--info)}.drawer-summary .doing i{background:var(--info)}.drawer-summary .idle{background:#f0ede4;color:var(--ink-3)}.drawer-summary .idle i{background:#b5b4aa}.student-name-cell{display:flex;align-items:center;gap:10px}.student-name-cell>span{display:inline-flex;width:32px;height:32px;align-items:center;justify-content:center;border-radius:50%;background:var(--brand-tint);color:var(--brand);font-family:"Noto Serif SC",Songti SC,serif;font-weight:700}.student-name-cell>div{display:flex;flex-direction:column}.student-name-cell b{color:var(--ink);font-size:13px}.student-name-cell small{color:var(--ink-3);font-size:10px}.portal-status{border:0}.portal-status.done{background:var(--brand-tint);color:var(--brand)}.portal-status.waiting{background:var(--gold-tint);color:#a0761b}.portal-status.doing{background:var(--info-tint);color:var(--info)}.portal-status.idle{background:#f0ede4;color:var(--ink-3)}.table-done{color:var(--ink-3);font-size:11px}.ai-coming{display:inline-flex;align-items:center;gap:7px;padding:8px 14px;border:1px dashed #d8ccac;border-radius:999px;background:var(--thead);color:var(--ink-3);font-size:11px}.review-workspace{display:grid;grid-template-columns:280px minmax(0,1fr);gap:16px;min-height:690px}.review-queue,.review-pane{border:1px solid var(--line);border-radius:12px;background:#fff;box-shadow:var(--shadow-card)}.review-queue{padding:12px}.review-queue-title{display:flex;align-items:center;justify-content:space-between;padding:8px 8px 15px;border-bottom:1px solid var(--line-soft)}.review-queue-title b{font-family:"Noto Serif SC",Songti SC,serif;font-size:15px}.review-queue-title span{display:inline-flex;min-width:23px;height:23px;align-items:center;justify-content:center;border-radius:999px;background:var(--warn);color:#fff;font-size:11px}.review-queue button{width:100%;display:grid;grid-template-columns:30px minmax(0,1fr) 14px;align-items:center;gap:9px;padding:13px 10px;border:0;border-bottom:1px solid var(--line-soft);background:transparent;color:var(--ink-2);cursor:pointer;font-family:inherit;text-align:left}.review-queue button.active{margin-top:5px;border-radius:9px;border-bottom-color:transparent;background:var(--brand-tint-2);color:var(--brand)}.queue-index{color:var(--ink-3);font-family:serif;font-size:11px}.review-queue button.active .queue-index{color:var(--brand)}.review-queue button>span:nth-child(2){display:flex;min-width:0;flex-direction:column}.review-queue button b{font-size:13px}.review-queue button small{margin-top:3px;overflow:hidden;color:var(--ink-3);font-size:10.5px;text-overflow:ellipsis;white-space:nowrap}.review-pane{display:flex;min-width:0;flex-direction:column;overflow:hidden}.review-pane>header{display:flex;align-items:center;justify-content:space-between;padding:17px 22px;border-bottom:1px solid var(--line-soft);background:var(--card-warm)}.review-pane>header>div{display:flex;align-items:center;gap:10px}.review-pane>header>div>div{display:flex;flex-direction:column}.review-pane>header b{color:var(--ink)}.review-pane>header small{margin-top:3px;color:var(--ink-3);font-size:10.5px}.review-avatar{display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;border-radius:50%;background:var(--brand);color:#fff;font-weight:700}.review-question{padding:22px 25px 18px}.review-question>span,.review-answer-grid section>span{color:var(--ink-3);font-size:10px;font-weight:700;letter-spacing:2px}.review-question h3{margin:10px 0 0;color:var(--ink);font-family:"Noto Serif SC",Songti SC,serif;font-size:17px;line-height:1.75}.review-answer-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding:0 25px 24px}.review-answer-grid section{min-height:210px;padding:17px;border:1px solid var(--line);border-radius:10px;background:#fff}.review-answer-grid section.reference{background:var(--brand-tint-2);border-color:#cfddcf}.review-answer-grid section>div{margin-top:13px;color:var(--ink);font-size:13px;line-height:1.8;white-space:pre-wrap;word-break:break-word}.review-answer-grid section p{padding-top:12px;border-top:1px solid #dce8dd;color:var(--ink-2);font-size:11px;line-height:1.7}.review-attachment-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:0 0 12px!important}.review-attachment-grid a{display:block;overflow:hidden;border:1px solid var(--line);border-radius:9px;background:var(--card-warm)}.review-attachment-grid img{display:block;width:100%;height:180px;object-fit:contain;background:#f4f1e9}.review-attachment-loading,.review-attachment-error{display:flex;min-height:90px;align-items:center;justify-content:center;border:1px dashed var(--line);border-radius:9px;color:var(--ink-3);font-size:11px}.review-actions{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:auto;padding:18px 25px;border-top:1px solid var(--line-soft);background:var(--card-warm)}.review-actions>div{display:flex;flex-direction:column}.review-actions small{color:var(--warn)}.review-actions span{margin-top:3px;color:var(--ink-3);font-size:10px}.review-actions .ant-btn{min-width:125px;font-weight:700}.review-actions .ant-btn-primary{min-width:210px}.accuracy{display:inline-flex;min-width:54px;justify-content:center;padding:4px 9px;border-radius:999px;font-weight:700}.accuracy.high{background:var(--brand-tint);color:var(--brand)}.accuracy.medium{background:var(--gold-tint);color:#a0761b}.accuracy.low{background:var(--warn-tint);color:var(--warn)}.attention-tag{border:0;background:var(--warn-tint);color:var(--warn)}.active-tag{border:0;background:var(--brand-tint);color:var(--brand)}.settings-form{max-width:900px}.setting-block{margin-bottom:16px;padding:22px;border:1px solid var(--line);border-radius:12px;background:#fff;box-shadow:var(--shadow-card)}.setting-block-title{display:flex;align-items:flex-start;gap:13px}.setting-block-title>div{flex:1}.setting-block-title b{color:var(--ink);font-size:14px}.setting-block-title p{margin:5px 0 0;color:var(--ink-3);font-size:11.5px;line-height:1.6}.setting-icon{display:inline-flex;width:38px;height:38px;flex:0 0 auto;align-items:center;justify-content:center;border-radius:10px;background:var(--brand-tint);color:var(--brand)}.answer-policy-grid{width:100%;display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:19px}.answer-policy-grid .ant-radio-wrapper{margin:0;padding:14px;align-items:flex-start;border:1px solid var(--line);border-radius:10px;background:var(--card-warm)}.answer-policy-grid .ant-radio-wrapper-checked{border-color:var(--brand);background:var(--brand-tint-2);box-shadow:0 0 0 1px var(--brand)}.answer-policy-grid .ant-radio{margin-top:2px}.answer-policy-grid .ant-radio-wrapper>span:last-child{width:100%}.answer-policy-grid .ant-radio-wrapper>span:last-child>span{display:flex;flex-direction:column}.answer-policy-grid b{display:flex;align-items:center;gap:7px;color:var(--ink);font-size:12.5px}.answer-policy-grid em{padding:2px 7px;border-radius:999px;background:var(--brand);color:#fff;font-size:9px;font-style:normal}.answer-policy-grid small{margin-top:5px;color:var(--ink-3);font-size:10.5px;line-height:1.55}.settings-submit{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:15px 0}.settings-submit span{color:var(--ink-3);font-size:11px}.settings-submit .ant-btn{min-width:140px;font-weight:700}.task-create-modal .ant-modal-title>div{display:flex;flex-direction:column}.task-create-modal .ant-modal-title b{color:var(--ink);font-family:"Noto Serif SC",Songti SC,serif;font-size:17px}.task-create-modal .ant-modal-title span{margin-top:3px;color:var(--ink-3);font-size:10.5px;font-weight:400}.password-modal .ant-modal-title>div{display:flex;flex-direction:column}.password-modal .ant-modal-title b{color:var(--ink);font-family:"Noto Serif SC",Songti SC,serif;font-size:17px}.password-modal .ant-modal-title .modal-sub{margin-top:3px;color:var(--ink-3);font-size:10.5px;font-weight:400}.private-app-shell{min-height:100vh;background:var(--paper)}.private-sidebar{padding:24px 14px 18px;border:0}.private-portal-brand{padding-bottom:0}.private-teacher-card{margin-bottom:12px}.private-nav-list{margin-bottom:14px}.private-nav-list button>span:first-child{width:18px;color:currentColor;font-size:17px;text-align:center}.private-sidebar-stats{gap:5px;margin:0 7px;padding:12px 4px;border-color:#ffffff1f}.private-sidebar-stats strong{color:#f3efe0;font-family:"Noto Serif SC",Songti SC,serif;font-size:17px}.private-sidebar-stats span{color:#9fb5a6;font-size:10.5px}.private-draft-note{margin:12px 7px;padding:10px;background:#f0c9a81a;color:#d8e2d9}.private-draft-note .ant-badge-status-text{color:#f0c9a8;font-size:11px}.private-draft-note p{color:#9fb5a6;font-size:10px}.private-back-button{margin-top:auto}.private-content{min-width:0;padding:25px 28px 34px;background:var(--paper)}.private-page-header h2.ant-typography{color:var(--ink);font-family:"Noto Serif SC",Songti SC,serif;font-size:25px}.private-page-header .ant-typography{color:var(--ink-3);font-size:11.5px}.private-selected-count{padding:9px 17px;border-color:var(--line);border-radius:10px;color:var(--ink-3);box-shadow:var(--shadow-card)}.private-selected-count strong{color:var(--brand);font-family:"Noto Serif SC",Songti SC,serif}.private-mode-row{margin:18px 0 14px}.private-mode-row .ant-segmented{background:#ede7d3}.private-mode-row .ant-segmented-item-selected{color:var(--brand);font-weight:700}.private-workspace{grid-template-columns:250px minmax(520px,1fr) 280px;gap:14px}.private-workspace.graph-mode{grid-template-columns:280px minmax(620px,1fr)}.private-filter-panel,.private-results-panel,.private-cart-panel{border-color:var(--line);border-radius:12px;box-shadow:var(--shadow-card)}.private-filter-panel{padding:16px}.private-filter-panel h5.ant-typography{color:var(--ink);font-family:"Noto Serif SC",Songti SC,serif}.private-subject-picker button{border-color:var(--line);background:var(--card-warm);color:var(--ink-2)}.private-subject-picker button:hover,.private-subject-picker button.active{border-color:#b6cab8;background:var(--brand-tint-2);box-shadow:0 3px 10px #2f5d4e14}.private-subject-picker button small{color:var(--ink-3)}.private-subject-picker i,.private-subject-picker .math i{background:var(--brand)}.private-subject-picker .physics i{background:var(--info)}.private-subject-picker .chemistry i{background:#168b70}.private-paper-total{color:var(--ink-3)}.private-collection-list .ant-collapse-item{border-bottom-color:var(--line-soft)}.private-collection-title strong,.paper-item-body strong{color:var(--ink)}.private-collection-title em{background:var(--brand-tint);color:var(--brand)}.private-paper-item:hover{background:var(--card-warm)}.private-paper-item.active{border-color:#b9cbb9;background:var(--brand-tint-2)}.paper-item-body small{color:var(--ink-3)}.subject-dot{background:var(--brand)}.subject-dot.physics{background:var(--info)}.subject-dot.chemistry{background:#168b70}.private-results-header{border-bottom-color:var(--line);background:var(--card-warm)}.private-results-header h4.ant-typography{color:var(--ink);font-family:"Noto Serif SC",Songti SC,serif}.private-initial-badge{background:var(--brand-tint);color:var(--brand)}.private-results-panel .ant-table-thead>tr>th{background:var(--thead);border-bottom-color:var(--line);color:var(--ink-3)}.private-results-panel .ant-table-tbody>tr>td{border-bottom-color:var(--line-soft)}.private-question-stem{color:var(--ink)}.private-question-source{color:var(--ink-3)}.private-cart-panel{padding:17px}.private-cart-title h4.ant-typography{color:var(--ink);font-family:"Noto Serif SC",Songti SC,serif}.private-cart-summary{background:var(--brand-tint-2);color:var(--ink-2)}.private-cart-summary strong{color:var(--brand)}.private-rule-card{border-color:#cfddcf;background:var(--brand-tint-2)}.private-rule-card strong{color:var(--brand)}.private-rule-card p{color:var(--ink-2)}.private-closure-tip{background:var(--brand-tint-2);color:var(--ink-2)}.private-node-detail{border-color:var(--line);background:var(--card-warm)}.private-graph-scroll{background-color:var(--card-warm);background-image:radial-gradient(#ddd6c5 .75px,transparent .75px)}.private-detail-option>span{border-color:#b9cbb9;color:var(--brand)}.private-detail-answer{border-color:#cfddcf;background:var(--brand-tint-2)}.private-analysis{border-top-color:#cfddcf}@media (max-width: 1439px){.portal-sider,.private-sidebar{width:200px!important;min-width:200px!important;max-width:200px!important;flex:0 0 200px!important}.portal-brand strong{font-size:15px}.portal-nav button,.private-nav-list button{font-size:12.5px}.portal-content{padding:24px}.private-content{padding:22px}.private-workspace{grid-template-columns:230px minmax(500px,1fr)}.private-cart-panel{position:fixed;z-index:30;right:18px;bottom:16px;top:auto;width:320px;padding:10px 13px;box-shadow:0 12px 30px #23342a33}.private-cart-panel .private-cart-summary,.private-cart-panel>.ant-typography,.private-cart-panel .private-rule-card,.private-cart-panel>.ant-btn-link{display:none}.private-cart-panel>.ant-btn-primary{margin:8px 0 0}}@media (max-width: 1050px){.review-workspace{grid-template-columns:220px minmax(0,1fr)}.review-answer-grid,.answer-policy-grid{grid-template-columns:1fr}}@media (max-width: 820px){.portal-sider,.private-sidebar{display:none}.teacher-login-card{grid-template-columns:1fr}.teacher-login-brand{display:none}.teacher-login-form{padding:40px}.review-workspace{grid-template-columns:1fr}.review-queue{max-height:240px;overflow:auto}.drawer-summary{grid-template-columns:1fr 1fr}}.teacher-web-shell,.private-app-shell{min-width:1100px;min-height:100vh;display:flex;flex-direction:column;background:var(--paper)}.teacher-web-topbar{position:sticky;z-index:80;top:0;height:58px;display:flex;flex:0 0 58px;align-items:stretch;padding:0 36px;border-bottom:1px solid var(--line);background:#fffffff7;box-shadow:0 1px 5px #40362006}.web-brand{display:flex;flex:0 0 auto;align-items:center;gap:9px;padding:0 28px 0 0;border:0;background:transparent;cursor:pointer;font-family:inherit;text-align:left}.web-brand .portal-brand-mark{width:30px;height:30px;border-radius:8px;background:var(--brand);color:#fff;font-size:16px;box-shadow:none}.web-brand>div{display:flex;flex-direction:column;line-height:1}.web-brand strong{color:var(--ink);font-family:"Noto Serif SC",Songti SC,serif;font-size:15px;letter-spacing:1px}.web-brand small{margin-top:4px;color:var(--ink-3);font-size:8px;letter-spacing:2px}.web-primary-nav{display:flex;align-items:stretch;gap:6px}.web-primary-nav button{position:relative;display:flex;align-items:center;gap:6px;padding:0 16px;border:0;background:transparent;color:var(--ink-2);cursor:pointer;font-family:inherit;font-size:13px}.web-primary-nav button:after{content:"";position:absolute;right:14px;bottom:0;left:14px;height:2px;border-radius:2px 2px 0 0;background:transparent}.web-primary-nav button:hover{color:var(--brand)}.web-primary-nav button.active{color:var(--brand);font-weight:700}.web-primary-nav button.active:after{background:var(--brand)}.web-primary-nav .ant-badge-count{background:var(--warn);box-shadow:0 0 0 1px #fff}.web-topbar-actions{display:flex;align-items:center;gap:13px;margin-left:auto}.web-class-chip{display:inline-flex;align-items:center;gap:11px;padding:7px 12px;border:1px solid var(--line);border-radius:7px;background:var(--card-warm);color:var(--ink-2);font-size:11px}.web-class-chip i,.web-account-menu summary i,.private-web-account i{color:var(--ink-3);font-style:normal}.web-account-menu{position:relative}.web-account-menu summary{display:flex;align-items:center;gap:8px;list-style:none;cursor:pointer;color:var(--ink-2);font-size:11px}.web-account-menu summary::-webkit-details-marker{display:none}.web-account-menu .teacher-avatar,.private-web-account .teacher-avatar{width:30px;height:30px;background:var(--accent);color:var(--accent-ink);font-size:12px}.web-account-menu>div{position:absolute;top:43px;right:0;width:160px;display:grid;padding:7px;border:1px solid var(--line);border-radius:9px;background:#fff;box-shadow:0 12px 30px #2a342b21}.web-account-menu>div button,.web-account-menu>div a{display:flex;align-items:center;gap:8px;padding:9px 10px;border:0;border-radius:6px;background:transparent;color:var(--ink-2);cursor:pointer;font-family:inherit;font-size:11px;text-decoration:none}.web-account-menu>div button:hover,.web-account-menu>div a:hover{background:var(--brand-tint-2);color:var(--brand)}.teacher-web-shell .portal-content{width:100%;max-width:1520px;margin:0 auto;padding:24px 40px 34px;background:var(--paper)}.teacher-web-shell .portal-content-wide{max-width:none;padding-bottom:24px}.teacher-web-shell .page-title{margin-bottom:18px}.teacher-web-shell .page-title h2{font-size:23px}.teacher-web-shell .page-title .ant-btn{height:36px;border-radius:7px;font-size:12px}.teacher-web-shell .dashboard-stats{margin-bottom:18px}.teacher-web-shell .portal-stat-card{min-height:116px;padding:16px 18px;border-radius:9px;box-shadow:none}.teacher-web-shell .portal-stat-icon{top:14px;right:14px;width:30px;height:30px;border-radius:8px}.teacher-web-shell .portal-stat-card strong{margin-top:8px;font-size:27px}.teacher-web-shell .portal-table-card.ant-card{border-radius:9px;box-shadow:none}.classroom-card .ant-card-body{padding-top:5px}.meeting-target-cell{display:flex;min-width:0;align-items:center;gap:7px}.meeting-target-cell>span{overflow:hidden;color:var(--ink-2);font-size:12px;text-overflow:ellipsis;white-space:nowrap}.student-edit-note{margin:-2px 0 18px;padding:10px 13px;border:1px dashed #d8ccac;border-radius:8px;background:var(--thead);color:var(--ink-3);font-size:11.5px;line-height:1.6}.private-web-topbar{width:100%}.private-web-account{display:flex;align-items:center;gap:8px;padding:0;border:0;background:transparent;color:var(--ink-2);cursor:pointer;font-family:inherit;font-size:11px}.private-content{width:100%;max-width:1580px;margin:0 auto;padding:22px 36px 34px}.private-page-header h2.ant-typography{font-size:23px}.private-mode-row{margin-top:14px}.private-page-filter{min-height:48px;display:flex;align-items:center;gap:12px;padding:8px 17px;border-bottom:1px solid var(--line);background:#fff}.private-page-filter>span:first-child{color:var(--ink-2);font-size:12px;font-weight:700}.private-page-filter .ant-select{width:180px}.private-page-filter .ant-select-selector{border-color:var(--line)!important;background:var(--card-warm)!important}.private-page-filter .ant-typography{font-size:11px}@media (max-width: 1180px){.teacher-web-topbar{padding:0 22px}.web-primary-nav button{padding:0 11px}.teacher-web-shell .portal-content,.private-content{padding-right:24px;padding-left:24px}}.formal-publish-content{flex:1;min-height:0;display:flex;flex-direction:column}.formal-publish-heading{display:flex;flex:0 0 auto;align-items:center;justify-content:space-between}.formal-publish-heading h1{margin:0;color:var(--ink);font-family:"Noto Serif SC",Songti SC,serif;font-size:24px}.formal-publish-heading span{color:var(--ink-3);font-size:12.5px}.formal-publish-tabs{display:flex;flex:0 0 auto;gap:28px;margin-top:12px;border-bottom:1px solid var(--line)}.formal-publish-tabs button{position:relative;padding:11px 4px;border:0;background:transparent;color:var(--ink-2);cursor:pointer;font-family:inherit;font-size:14.5px}.formal-publish-tabs button.active{color:var(--brand);font-weight:700}.formal-publish-tabs button.active:after{content:"";position:absolute;right:0;bottom:-1px;left:0;height:2.5px;border-radius:2px 2px 0 0;background:var(--brand)}.textbook-filter-bar{display:flex;flex:0 0 auto;align-items:center;gap:14px;margin-top:16px;padding:13px 20px;border:1px solid var(--line);border-radius:10px;background:#fff}.textbook-filter-bar>span{color:var(--ink-3);font-size:13px}.textbook-filter-bar>.ant-select{width:360px}.textbook-filter-bar .ant-select-selector{min-height:38px!important;align-items:center;border-color:var(--line)!important;background:var(--card-warm)!important;font-weight:600}.textbook-filter-bar>.ant-btn{height:38px;min-width:82px;border-radius:9px;font-weight:700}.textbook-filter-bar>small{margin-left:auto;overflow:hidden;color:var(--ink-3);font-size:12px;text-overflow:ellipsis;white-space:nowrap}.page-range-input{display:flex;align-items:center;gap:5px;padding:5px 10px;border:1.5px solid var(--brand);border-radius:9px;background:#fff}.page-range-input label{color:var(--ink-3);font-size:12px}.page-range-input input{width:48px;padding:2px 0;border:0;outline:0;background:transparent;color:var(--ink);font-family:"Noto Serif SC",serif;font-size:16px;font-weight:700;text-align:center}.page-range-input input::-webkit-inner-spin-button{display:none}.page-range-input i{color:#c9c0a8;font-style:normal}.formal-publish-workspace{flex:1;min-height:0;display:flex;gap:18px;margin-top:14px}.formal-question-table{flex:1;min-width:0;display:flex;flex-direction:column;overflow:hidden;border:1px solid var(--line);border-radius:12px;background:#fff}.formal-question-table>header{display:flex;flex:0 0 auto;align-items:center;justify-content:space-between;padding:12px 20px;border-bottom:1px solid var(--line-soft)}.formal-question-table>header b{font-size:13.5px}.formal-question-table>header{gap:12px}.formal-question-table>header>button{border:0;background:transparent;color:var(--brand);cursor:pointer;font-family:inherit;font-size:13px;font-weight:600;white-space:nowrap}.formal-question-body{min-height:0;overflow:auto}.formal-question-body .q-flow{padding:14px 16px}.formal-selected-panel{width:300px;flex:0 0 auto;display:flex;flex-direction:column;gap:12px}.formal-selected-card{flex:1;display:flex;flex-direction:column;padding:18px 22px;border:1px solid var(--line);border-radius:12px;background:#fff}.formal-selected-card>header{display:flex;align-items:baseline;justify-content:space-between}.formal-selected-card>header b{font-size:14.5px}.formal-selected-card>header strong{color:var(--brand);font-family:"Noto Serif SC",serif;font-size:23px}.selected-stat{display:flex;align-items:center;gap:9px;margin-top:9px;font-size:12px}.selected-stat>span{width:64px;font-weight:600}.selected-stat>i{flex:1;height:6px;overflow:hidden;border-radius:4px;background:var(--line-soft)}.selected-stat>i b{display:block;height:100%;border-radius:4px}.selected-stat>strong{width:18px;text-align:right}.selected-stat.basic{color:#3e6b5a}.selected-stat.basic>i b{background:#3e6b5a}.selected-stat.medium{color:#a0761b}.selected-stat.medium>i b{background:var(--gold)}.selected-stat.hard{color:var(--warn)}.selected-stat.hard>i b{background:var(--warn)}.formal-selected-card hr{width:100%;margin:15px 0 8px;border:0;border-top:1px solid var(--line-soft)}.formal-selected-card p{display:flex;justify-content:space-between;margin:7px 0 0;color:var(--ink-2);font-size:13px}.formal-selected-card p b{color:var(--ink)}.formal-selected-card>small{margin-top:auto;padding:9px 13px;border:1px dashed #d8ccac;border-radius:9px;background:var(--thead);color:var(--ink-3);font-size:12px;line-height:1.6}.formal-selected-panel>.ant-btn{height:46px;border-radius:9px;font-size:15px;font-weight:700}.knowledge-search-area{position:relative;flex:0 0 auto;margin-top:16px}.knowledge-search-area>.ant-input-search{width:100%}.knowledge-search-area .ant-input-affix-wrapper{height:44px;border:1.5px solid var(--brand);border-radius:10px!important;background:#fff}.knowledge-search-area .ant-input-group-addon{display:none}.knowledge-match-list{position:absolute;z-index:15;top:45px;right:8px;left:8px;overflow:hidden;border:1px solid var(--line);border-radius:0 0 10px 10px;background:#fff;box-shadow:0 12px 26px #4036201f}.knowledge-match-list>small{display:block;padding:8px 16px;background:var(--thead);color:var(--ink-3);font-size:11.5px;letter-spacing:1px}.knowledge-match-list>button{width:100%;display:flex;align-items:center;gap:13px;padding:10px 16px;border:0;border-top:1px solid var(--line-soft);background:#fff;cursor:pointer;font-family:inherit;text-align:left}.knowledge-match-list>button.active{background:var(--brand-tint-2)}.knowledge-match-list em{padding:3px 9px;border-radius:6px;background:var(--accent);color:var(--accent-ink);font-size:11px;font-style:normal;font-weight:700}.knowledge-match-list button>span{flex:1;display:flex;flex-direction:column}.knowledge-match-list button b{font-size:13.5px}.knowledge-match-list button small{margin-top:2px;color:var(--ink-3);font-size:12px}.knowledge-match-list button>strong{color:var(--brand)}.selected-knowledge-chips{display:flex;align-items:center;gap:8px;margin-top:10px}.selected-knowledge-chips>span{color:var(--ink-3);font-size:12px}.selected-knowledge-chips button{padding:6px 14px;border:0;border-radius:999px;background:var(--brand);color:#fff;cursor:pointer;font-family:inherit;font-size:12px}.rich-html table{border-collapse:collapse;margin:8px 0;max-width:100%}.rich-html td,.rich-html th{border:1px solid #E7DFCC;padding:4px 8px;vertical-align:middle}.rich-html img{max-width:100%;height:auto}.rich-html sub,.rich-html sup{font-size:.75em}.rich-html p{margin:4px 0}.private-detail-stem,.private-analysis{overflow-x:auto}.bank-source-switch{display:flex;gap:8px;padding:16px 24px 0;background:#f7f5ef}.bank-source-switch button{flex:0 0 auto;padding:8px 20px;border:1px solid #E7DFCC;border-radius:999px;background:#fff;color:#8a927f;cursor:pointer;font-size:14px}.bank-source-switch button.active{background:#2f5d4e;border-color:#2f5d4e;color:#fff}.base-bank-picker{padding:0}.base-bank-filters{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 16px}.base-bank-loading{padding:60px;text-align:center}.q-flow{display:flex;flex-direction:column;gap:14px}.q-card{background:#fff;border:1px solid var(--line, #E7DFCC);border-radius:20px;box-shadow:0 2px 6px #2b3a330d;padding:20px 22px;transition:border-color .15s,box-shadow .15s}.q-card:hover{box-shadow:0 4px 14px #2b3a3317}.q-card.selected{border-color:var(--brand, #2F5D4E);box-shadow:0 0 0 1px var(--brand, #2F5D4E) inset}.q-card-head{display:flex;align-items:center;gap:12px;margin-bottom:12px}.q-meta{color:var(--ink-3, #8A927F);font-size:12px;white-space:nowrap}.q-num{color:var(--brand, #2F5D4E);font-family:"Noto Serif SC",Songti SC,serif;font-size:26px;font-weight:700;line-height:1}.q-diff{padding:4px 10px;border-radius:999px;font-size:11px;font-weight:700;white-space:nowrap}.q-diff.basic{background:#e8f1ea;color:#3e6b5a}.q-diff.medium{background:#f8f0dc;color:#a0761b}.q-diff.hard{background:#f7e7de;color:#b4552d}.q-check{margin-left:auto;padding:5px 14px;border:1px solid var(--line, #E7DFCC);border-radius:999px;background:#fff;color:var(--ink-3, #8A927F);cursor:pointer;font-size:12px;white-space:nowrap}.q-check:hover{border-color:var(--brand, #2F5D4E);color:var(--brand, #2F5D4E)}.q-card.selected .q-check{background:var(--brand, #2F5D4E);border-color:var(--brand, #2F5D4E);color:#fff}.q-stem{color:var(--ink, #2B3A33);font-size:14.5px;line-height:1.85;cursor:pointer;overflow-x:auto}.q-stem img{max-width:100%;height:auto}.base-bank-pager{margin-top:16px;text-align:right}.base-bank-detail{margin-top:16px;padding:16px;background:#fff;border:1px solid #E7DFCC;border-radius:12px}.base-bank-detail-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(158px,1fr));gap:14px}.book-card{display:flex;flex-direction:column;gap:8px;padding:8px;background:#fff;border:1px solid #E7DFCC;border-radius:10px;cursor:pointer;text-align:left;transition:border-color .15s,box-shadow .15s,transform .15s}.book-card:hover{border-color:#2f5d4e;box-shadow:0 4px 14px #2f5d4e24;transform:translateY(-2px)}.book-card-body{display:flex;flex-direction:column;gap:2px;padding:0 2px 2px;min-width:0}.book-card-body b{color:#2b3a33;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.book-card-body>span{color:#8a927f;font-size:12px}.book-card-body small{color:#a6ae9b;font-size:12px}.book-cover{position:relative;display:flex;align-items:stretch;aspect-ratio:3 / 4;border-radius:3px 7px 7px 3px;overflow:hidden;color:#fff7e9;background:linear-gradient(160deg,#ffffff29,#00000038),var(--tone, #59614F);box-shadow:inset 0 0 0 1px #0000001a,0 1px 3px #2b3a3324}.book-cover-spine{flex:0 0 11px;background:linear-gradient(90deg,#00000057,#0000000a);box-shadow:inset -1px 0 #fff3}.book-cover-text{flex:1;min-width:0;display:flex;flex-direction:column;justify-content:center;gap:6px;padding:14px 12px 28px}.book-cover-text b{font-family:Songti SC,"Noto Serif SC","Source Han Serif SC",serif;font-size:15px;font-weight:600;line-height:1.42;letter-spacing:.5px;display:-webkit-box;-webkit-line-clamp:5;-webkit-box-orient:vertical;overflow:hidden;overflow-wrap:anywhere}.book-cover-text i{font-style:normal;font-size:11px;line-height:1.5;opacity:.78;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.book-cover-tag{position:absolute;left:23px;right:10px;bottom:9px;font-size:10px;letter-spacing:.6px;opacity:.72;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.book-workspace{display:grid;grid-template-columns:minmax(240px,320px) 1fr;gap:16px;align-items:start}.book-outline{position:sticky;top:16px;max-height:calc(100vh - 200px);overflow:auto;padding:12px;background:#fff;border:1px solid #E7DFCC;border-radius:10px}.book-questions{min-width:0}.type-list{display:flex;flex-direction:column;gap:4px}.type-list button{display:flex;justify-content:space-between;align-items:center;padding:8px 10px;border:1px solid transparent;border-radius:8px;background:transparent;color:#2b3a33;cursor:pointer;font-size:13px}.type-list button:hover{background:#f7f5ef}.type-list button.active{background:#eef3ef;border-color:#2f5d4e;color:#2f5d4e}.type-list button span{color:#8a927f;font-size:12px}.picker-step{display:flex;align-items:baseline;gap:10px;margin:0 0 12px;padding-bottom:10px;border-bottom:1px solid var(--line, #E7DFCC)}.picker-step b{color:var(--ink, #2B3A33);font-size:15px}.picker-step>span{color:var(--ink-3, #8A927F);font-size:12.5px}.picker-step .picker-back{padding:0;height:auto}.picker-step .picker-confirm{margin-left:auto;align-self:center}.wechat-bind-qr{display:flex;flex-direction:column;align-items:center;gap:12px;padding:20px 16px 4px}.wechat-bind-qr p{margin:0;max-width:420px;text-align:center;color:#4f6280;font-size:13px;line-height:1.7}.sheet-review{display:grid;gap:18px}.sheet-photos{display:flex;flex-wrap:wrap;gap:12px}.sheet-photos img{max-width:460px;max-height:620px;border:1px solid var(--line);border-radius:8px}.sheet-questions{margin:0;padding-left:22px;display:grid;gap:14px}.sheet-questions li{border-bottom:1px solid var(--line-soft, #EFEAE0);padding-bottom:12px}.sheet-q-stem{color:var(--ink);font-size:14px;line-height:1.7}.sheet-q-answer{color:var(--ink-3);font-size:12.5px;margin:4px 0 8px}@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/teacher/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2) format("woff2"),url(/teacher/assets/KaTeX_AMS-Regular-DMm9YOAa.woff) format("woff"),url(/teacher/assets/KaTeX_AMS-Regular-DRggAlZN.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/teacher/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2) format("woff2"),url(/teacher/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff) format("woff"),url(/teacher/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/teacher/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2) format("woff2"),url(/teacher/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff) format("woff"),url(/teacher/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/teacher/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2) format("woff2"),url(/teacher/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff) format("woff"),url(/teacher/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/teacher/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2) format("woff2"),url(/teacher/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff) format("woff"),url(/teacher/assets/KaTeX_Fraktur-Regular-CB_wures.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/teacher/assets/KaTeX_Main-Bold-Cx986IdX.woff2) format("woff2"),url(/teacher/assets/KaTeX_Main-Bold-Jm3AIy58.woff) format("woff"),url(/teacher/assets/KaTeX_Main-Bold-waoOVXN0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/teacher/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2) format("woff2"),url(/teacher/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff) format("woff"),url(/teacher/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/teacher/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2) format("woff2"),url(/teacher/assets/KaTeX_Main-Italic-BMLOBm91.woff) format("woff"),url(/teacher/assets/KaTeX_Main-Italic-3WenGoN9.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/teacher/assets/KaTeX_Main-Regular-B22Nviop.woff2) format("woff2"),url(/teacher/assets/KaTeX_Main-Regular-Dr94JaBh.woff) format("woff"),url(/teacher/assets/KaTeX_Main-Regular-ypZvNtVU.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/teacher/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2) format("woff2"),url(/teacher/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff) format("woff"),url(/teacher/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/teacher/assets/KaTeX_Math-Italic-t53AETM-.woff2) format("woff2"),url(/teacher/assets/KaTeX_Math-Italic-DA0__PXp.woff) format("woff"),url(/teacher/assets/KaTeX_Math-Italic-flOr_0UB.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/teacher/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2) format("woff2"),url(/teacher/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff) format("woff"),url(/teacher/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/teacher/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2) format("woff2"),url(/teacher/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff) format("woff"),url(/teacher/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/teacher/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2) format("woff2"),url(/teacher/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff) format("woff"),url(/teacher/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/teacher/assets/KaTeX_Script-Regular-D3wIWfF6.woff2) format("woff2"),url(/teacher/assets/KaTeX_Script-Regular-D5yQViql.woff) format("woff"),url(/teacher/assets/KaTeX_Script-Regular-C5JkGWo-.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/teacher/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2) format("woff2"),url(/teacher/assets/KaTeX_Size1-Regular-C195tn64.woff) format("woff"),url(/teacher/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/teacher/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2) format("woff2"),url(/teacher/assets/KaTeX_Size2-Regular-oD1tc_U0.woff) format("woff"),url(/teacher/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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) format("woff2"),url(/teacher/assets/KaTeX_Size3-Regular-CTq5MqoE.woff) format("woff"),url(/teacher/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/teacher/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2) format("woff2"),url(/teacher/assets/KaTeX_Size4-Regular-BF-4gkZK.woff) format("woff"),url(/teacher/assets/KaTeX_Size4-Regular-DWFBv043.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/teacher/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2) format("woff2"),url(/teacher/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff) format("woff"),url(/teacher/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;position:relative;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.47"}.katex .katex-mathml{border:0;-webkit-clip-path:inset(50%);clip-path:inset(50%);height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .smash{display:inline;line-height:0}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}.my-resources{flex:1;min-height:0;overflow-y:auto;width:100%;max-width:1100px;margin:0 auto;padding:32px 32px 120px;box-sizing:border-box}.resources-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:28px}.resources-heading h1{font-size:26px;font-weight:600;margin:0 0 8px}.resources-heading p{margin:0;color:#737373;font-size:14px}.resources-toolbar{display:flex;align-items:center;gap:12px;margin-bottom:22px}.resources-toolbar .ant-input-search{max-width:360px}.resources-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;margin-bottom:20px}.resource-card{border:1px solid #e7e5e4;border-radius:16px;background:#fff;min-width:0;padding:20px;transition:border-color .15s,background .15s}.resource-card.is-selected{border-color:#656c53;background:#f8faf4}.resource-card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.resource-symbol{display:flex;width:38px;height:42px;border-radius:9px;align-items:center;justify-content:center;background:#f1f0ec;color:#615b50}.resource-card-title{display:block;text-align:left;padding:0;border:0;background:none;font-size:16px;font-weight:600;line-height:1.6;color:#262626;cursor:pointer;overflow-wrap:anywhere}.resource-card p{font-size:13px;color:#777;margin:10px 0 18px}.resource-card-actions{display:flex;gap:12px;align-items:center;justify-content:space-between}.resource-card-actions button{padding:0;border:0;background:transparent;color:#555;font-size:13px;cursor:pointer}.resource-card-actions span{color:#8a7261;font-size:12px}.resources-selection{position:sticky;bottom:16px;z-index:3;display:flex;justify-content:space-between;align-items:center;gap:14px;padding:15px 18px;margin-top:26px;border:1px solid #e7e5e4;border-radius:14px;background:#fff;box-shadow:0 8px 30px #0000000c;font-size:14px}.resources-selection>div{display:flex;gap:8px}.resources-loading{padding:80px;text-align:center}.resource-child-select{margin:16px 32px 0;width:180px}.chat-source-context{max-height:112px;overflow-y:auto;display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:12px 0;color:#666;font-size:13px}.chat-source-context button,.chat-source-link{border:1px solid #e1e3db;border-radius:8px;padding:5px 9px;color:#4b5740;background:#f8faf4;cursor:pointer;font:inherit;max-width:100%;overflow-wrap:anywhere}.source-preview .source-question-image{display:block;width:100%;height:auto;margin:18px 0}.source-preview-list{display:flex;flex-direction:column;gap:10px;margin:20px 0}.source-preview-list button{text-align:left;border:1px solid #e5e5e5;border-radius:10px;background:#fff;padding:14px;cursor:pointer;color:#333}.source-preview-list small{display:block;line-height:1.7;margin-top:6px;color:#777}.source-preview-text{white-space:pre-wrap;line-height:1.85;overflow-wrap:anywhere}.source-preview-back{margin:16px 0}.source-preview h3{line-height:1.6}.chat-markdown .chat-source-link{font-size:inherit;padding:1px 6px;display:inline;line-height:inherit}.source-chat-welcome p{font-size:15px;color:#777;line-height:1.8}.source-chat-welcome h1{font-size:27px}.source-chat-welcome{max-width:580px}.source-chat-hints{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:24px}.source-chat-hints button{background:#fff;border:1px solid #e5e5e5;border-radius:12px;padding:12px 16px;cursor:pointer;color:#555}@media (max-width:750px){.my-resources{padding:24px 16px 90px}.resources-heading{align-items:flex-start;gap:10px}.resources-heading h1{font-size:23px}.resources-grid{grid-template-columns:1fr}.resources-selection{bottom:8px;padding:12px;gap:8px}.resources-selection>span{font-size:12px}.resource-child-select{margin-left:16px}.source-chat-welcome h1{font-size:23px}}.source-original iframe{display:block;width:100%;height:72vh;min-height:420px;border:0;margin:12px 0}.source-original>a{display:inline-block;margin:12px 0}.source-preview [hidden]{display:none!important}.report-source-directory{display:flex;flex-direction:column;align-items:stretch;gap:8px;margin:12px 0 20px}.report-source-directory>.ant-btn{text-align:left;white-space:normal;height:auto;min-height:40px;justify-content:flex-start;padding:10px 12px}.recharge-flow{display:grid;gap:18px;padding-top:12px}.recharge-flow p{margin:0}.recharge-summary{display:grid;gap:6px;text-align:center;color:#686868}.recharge-summary strong{color:#161616;font-size:34px;letter-spacing:-1px}.recharge-offers{display:flex;gap:10px;width:100%}.recharge-offers .ant-radio-button-wrapper{flex:1;height:auto;padding:16px 6px;border:1px solid #e5e5e5;border-radius:9px;text-align:center}.recharge-offers .ant-radio-button-wrapper:before{display:none}.recharge-offers strong,.recharge-offers span:not(.ant-radio-button){display:block}.recharge-offers strong{font-size:23px}.recharge-offers .ant-radio-button-wrapper-checked{background:#f5f5f5}.recharge-note{color:#686868;font-size:13px;line-height:1.7}.recharge-qr{position:relative;overflow:hidden;width:248px;max-width:100%;aspect-ratio:1;margin:0 auto;border-radius:8px}.recharge-qr img{position:absolute;width:186.73%;max-width:none;left:-43.29%;top:-116.9%}.recharge-save{text-align:center}.recharge-actions{display:flex;flex-wrap:wrap;gap:8px}.recharge-order-info{font-size:12px;color:#686868;overflow-wrap:anywhere}.recharge-order-info summary{cursor:pointer;padding:8px 0}.recharge-order-info p{margin:4px 0}.recharge-history button{display:flex;width:100%;justify-content:space-between;align-items:center;gap:12px;text-align:left;padding:14px 0;border:0;border-bottom:1px solid #eee;background:transparent;cursor:pointer;color:#262626}.recharge-history strong,.recharge-history small{display:block}.recharge-history small{margin-top:6px;color:#777;font-size:12px}.recharge-flow .ant-form-item-extra{font-size:12px}.recharge-flow form .recharge-note{margin:0 0 12px}@media (max-width:480px){.recharge-qr{max-width:200px}.recharge-offers{gap:7px}}.account-center{color:#171717;font-size:14px}.account-identity{display:flex;align-items:center;gap:16px;padding:8px 0 30px}.account-avatar{width:56px;height:56px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:#f0f0f0;color:#404040;font-size:22px;flex-shrink:0}.account-identity>div{min-width:0}.account-identity h2{font-size:20px;margin:0 0 5px;font-weight:600;overflow-wrap:anywhere}.account-identity p{margin:0;color:#737373;font-size:13px;overflow-wrap:anywhere}.account-menu{border-top:1px solid #ededed}.account-menu>button,.account-menu>a,.account-cancel>summary{display:flex;align-items:center;justify-content:space-between;width:100%;min-height:57px;padding:16px 8px;border:0;border-bottom:1px solid #ededed;border-radius:0;background:transparent;color:#171717;font:inherit;text-align:left;text-decoration:none;cursor:pointer}.account-menu>button:hover,.account-menu>a:hover,.account-cancel>summary:hover{background:#f7f7f7;color:#171717}.account-menu>button:focus-visible,.account-menu>a:focus-visible{outline:2px solid #888;outline-offset:-2px}.account-menu>button>span,.account-menu>a>span{color:#999}.account-signout.ant-btn{margin-top:32px;color:#666;box-shadow:none}.account-subhead{display:flex;align-items:center;gap:10px;margin:0 0 26px}.account-subhead h2{margin:0;font-size:17px;font-weight:600}.account-subhead>button{width:30px;height:30px;border:0;border-radius:6px;background:transparent;font-size:25px;cursor:pointer;color:#777}.account-subhead>button:hover{background:#f3f3f3}.account-center .ant-alert{margin-bottom:20px}.account-detail{margin:0 0 24px;display:flex;flex-direction:column;gap:7px}.account-detail>strong{font-weight:400;color:#737373;overflow-wrap:anywhere}.account-center .account-code-row{display:flex;align-items:center;gap:10px}.account-code-row>.ant-form-item{flex:1;min-width:0}.account-code-row>.ant-btn{margin-top:6px}.account-cancel>summary{list-style:none;color:#737373}.account-cancel>summary::-webkit-details-marker{display:none}.account-cancel p{line-height:1.8;color:#737373;margin:16px 8px 8px}.account-cancel>a{display:inline-block;margin:0 8px;color:#171717;text-decoration:underline}.account-contact{color:#737373;font-size:13px;margin-top:28px;overflow-wrap:anywhere}.account-contact a{color:inherit}.account-loading{padding:50px 0;text-align:center}.account-child{margin-bottom:24px;padding-bottom:20px;border-bottom:1px solid #ededed}.account-child-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}.account-child h3{margin:0;font-weight:500;font-size:16px;overflow-wrap:anywhere}.account-child-heading p{color:#737373;margin:5px 0 0}.account-device{display:flex;justify-content:space-between;gap:16px;margin-top:10px;font-size:13px}.account-device>span:last-child{color:#999}.account-device>span.is-online{color:#444}.account-muted{color:#737373}.account-legal-links{text-align:center;margin:20px 0 0;font-size:12px;color:#737373}.account-legal-links a{color:inherit;text-decoration:underline;text-underline-offset:3px}.account-legal-links a+a{margin-left:20px}.parent-preferences{max-width:760px}.parent-preferences>p{max-width:620px}.parent-preferences .ant-form{margin-top:26px}.preference-row{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 0 8px}.preference-row strong{font-size:16px;font-weight:500}.preference-row p,.preference-cost{color:#777;font-size:13px;line-height:1.7}.preference-row p{margin:6px 0}.preference-cost{margin:6px 0 24px}.parent-preferences .ant-input-number,.parent-preferences .ant-input-number-group-wrapper{width:100%}.parent-preferences .ant-collapse{margin:12px 0 24px}.parent-preferences .ant-collapse-header,.parent-preferences .ant-collapse-content-box{padding-left:0!important}.parent-preferences .ant-checkbox-group{display:flex;gap:8px 20px}.connection-create,.connection-setup{display:flex;flex-direction:column;gap:14px;padding:20px 0}.connection-create>.ant-btn,.connection-setup>.ant-btn{align-self:flex-start}.connection-create .preference-cost,.connection-setup .preference-cost{margin:0}.connection-create>label,.connection-create>span,.connection-setup>label{font-size:14px;font-weight:500}.connection-setup h3{margin:0;font-size:18px}.connection-setup>p,.connection-setup ol{margin:0;line-height:1.8}.connection-setup ol{padding-left:22px;font-size:14px}.connection-copy{display:flex;align-items:center;gap:8px}.connection-copy>.ant-input,.connection-copy>.ant-input-affix-wrapper{flex:1;min-width:0}.connection-grants{border-top:1px solid #ededed;padding-top:8px}.connection-grants h3{font-size:16px;margin:22px 0}.connection-grant{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;padding:20px 0;border-top:1px solid #f0f0f0}.connection-grant strong{font-weight:500;margin-right:12px}.connection-grant p{color:#777;font-size:13px;margin:8px 0 0}@media (max-width: 750px){.connection-copy{flex-wrap:wrap}.connection-copy>.ant-input,.connection-copy>.ant-input-affix-wrapper{flex-basis:calc(100% - 120px)}}.connection-validity{display:flex;gap:24px;font-size:14px}.connection-validity>span:last-child{color:#777}.video-content-settings{max-width:720px;margin-top:32px;padding-top:28px;border-top:1px solid #e8e8e8}.video-content-heading{display:flex;justify-content:space-between;align-items:baseline;gap:16px}.video-content-heading h2{margin:0 0 20px;font-size:20px}.video-content-heading [role=status]{font-size:13px;color:#666}.video-content-list{list-style:none;padding:0;margin:20px 0 12px}.video-content-list li{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid #eee}.video-content-list li>span{min-width:0;overflow-wrap:anywhere}.video-content-list small{display:inline-block;margin-right:12px;color:#777}.video-content-add{display:flex;gap:8px;margin:16px 0 20px}.video-content-add .ant-select{min-width:86px}.video-content-add>.ant-input{flex:1;min-width:0}.video-content-add>.ant-btn{flex-shrink:0;white-space:nowrap}.video-content-empty,.video-content-pending{font-size:14px;color:#666}.video-content-pending{margin-left:12px}@media (max-width:600px){.video-content-heading{align-items:flex-start;flex-direction:column;gap:0}.video-content-heading [role=status]{margin-bottom:16px}.video-content-add{flex-wrap:wrap}.video-content-add .ant-input{flex:1;min-width:150px}.video-content-settings .ant-radio-group{display:flex;gap:12px;flex-wrap:wrap}}.video-content-note{font-size:14px;color:#666;margin:0 0 16px}.video-content-list .video-content-unavailable{display:block;margin:4px 0 0;color:#8a6729}.video-danmaku-setting{margin:0 0 20px}.video-danmaku-switch{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:8px}.video-danmaku-setting .video-content-note{margin:4px 0;font-size:13px}.learning-activity{max-width:900px;padding:8px 0 28px;color:#171717}.activity-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px}.activity-heading h2{margin:0;font-size:20px;font-weight:600}.activity-controls{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:24px;flex-wrap:wrap}.activity-controls .ant-picker{max-width:100%}.activity-loading{padding:50px;text-align:center}.activity-rows article{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;padding:18px 0;border-bottom:1px solid #ededed}.activity-rows article>div{min-width:0}.activity-rows h3{font-size:15px;font-weight:500;margin:0 0 6px;overflow-wrap:anywhere}.activity-rows p{color:#777;font-size:12px;margin:5px 0 0}.activity-rows article>span{white-space:nowrap;font-size:13px;color:#555;flex-shrink:0}.activity-pagination{display:flex;justify-content:flex-end;gap:12px;margin-top:24px}.activity-details{margin-top:16px;font-size:13px}.activity-details>div{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px solid #eee}.activity-details>div>span:nth-child(2){color:#777}@media (max-width:600px){.activity-controls{align-items:flex-start;flex-direction:column}.activity-rows article{gap:12px}.activity-rows article>span{font-size:12px}.activity-details>div{gap:8px;font-size:12px}}.learning-connections{max-width:760px}.learning-connections h2{margin-bottom:8px}.learning-connections h3{font-size:16px;font-weight:600;margin:0 0 12px}.ai-note{color:#737373;font-size:13px;line-height:1.7}.ai-client-grid{display:flex;gap:8px;flex-wrap:wrap;margin:24px 0}.ai-client-grid .ant-btn{height:40px;padding-inline:16px}.ai-connection-section{border-top:1px solid #eee;padding:24px 0}.ai-connection-section>p{line-height:1.7}.ai-connection-section ol{padding-left:22px;line-height:1.9;color:#555}.ai-actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:16px 0}.ai-connection-section .connection-copy{margin:12px 0}.ai-connection-section>label{display:block;margin:14px 0 8px}.ai-context-preview{white-space:pre-wrap;max-height:280px;overflow:auto;background:#f7f7f7;border-radius:10px;padding:16px;font-family:inherit;font-size:13px;line-height:1.8}.ai-record{display:flex;justify-content:space-between;gap:14px;align-items:center;border-top:1px solid #eee;padding:16px 0}.ai-record p{margin:5px 0 0}.ai-run-result{padding:16px;background:#f7f7f7;border-radius:10px;margin-top:16px}.ai-run-result p{line-height:1.7;white-space:pre-wrap}.ai-authorization{max-width:510px;margin:8vh auto;padding:24px}.ai-brand{color:#333;font-size:16px}.ai-authorization section{border:1px solid #eee;border-radius:16px;padding:28px;margin-top:28px}.ai-authorization h1{font-size:24px;margin-top:0}.ai-authorization section>label{display:block;margin:24px 0 10px}.ai-authorization .ant-select{width:100%}.ai-authorization .ant-alert{margin-bottom:16px}.ai-account-switch{margin:16px 0 0;padding:0}@media (max-width: 600px){.ai-authorization{margin:24px auto;padding:20px}.ai-authorization section{padding:20px}.ai-client-grid{gap:6px}.ai-client-grid .ant-btn{padding-inline:12px}}.chat-share-button{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:34px;flex-shrink:0;padding:6px 12px;border:1px solid #e5e5e5;border-radius:9px;background:#fff;color:#343434;font:inherit;font-size:14px;line-height:20px;cursor:pointer}.chat-share-button:hover{background:#f5f5f5}.chat-share-button:focus-visible{outline:2px solid #666;outline-offset:2px}.chat-share-button:disabled{color:#a5a5a5;cursor:default}.chat-topbar>.chat-share-button{margin-left:auto}.chat-topbar>.chat-context-select+.chat-share-button{margin-left:0}.chat-topbar:has(>.chat-share-button) .chat-current-title{flex:1}.chat-share-drawer .ant-drawer-content{background:#fff;color:#0d0d0d}.chat-share-drawer .learning-connections{padding:0;border:0;border-radius:0;max-width:none;color:#0d0d0d}.chat-share-drawer .learning-connections>p{color:#737373}.chat-share-source{margin:0 0 24px}.chat-share-source label{display:block;margin-bottom:10px;font-size:14px}.chat-share-source .ant-select{width:100%}.chat-share-source-name{margin:0 0 16px;font-weight:500}.chat-share-empty{padding:16px 0}.chat-share-empty p{color:#737373;line-height:1.7}@media (max-width: 750px){.chat-share-button{gap:5px;padding-inline:10px;font-size:13px}.chat-share-drawer .ant-drawer-body{padding:20px}.chat-topbar:has(>.chat-share-button)>.chat-context-select{max-width:38%}}.reviewed-assessment{color:#171717;min-width:0;overflow-wrap:anywhere}.reviewed-assessment header h3{margin:8px 0;font-size:22px;line-height:1.45}.reviewed-assessment-scope{margin:8px 0 16px;color:#686868;font-size:14px}.reviewed-assessment-summary{white-space:pre-wrap;line-height:1.85;margin:18px 0}.reviewed-assessment-actions{margin:2px 0 20px}.reviewed-assessment-observations{margin:8px 0 24px}.reviewed-assessment h4{font-size:16px;margin:0 0 14px}.reviewed-assessment-observations dl{margin:0;border-top:1px solid #e5e5e5}.reviewed-assessment-observations dl>div{display:grid;grid-template-columns:100px minmax(0,1fr);gap:20px;padding:16px 0;border-bottom:1px solid #e5e5e5}.reviewed-assessment-observations dt{font-weight:600;line-height:1.8}.reviewed-assessment-observations dd{margin:0;min-width:0}.reviewed-assessment-observations p{margin:0;line-height:1.8;white-space:pre-wrap}.reviewed-assessment-observations .reviewed-assessment-evidence{margin-top:5px;color:#686868;font-size:14px}.reviewed-assessment-viewer{min-width:0;margin:24px 0 0}.reviewed-assessment-viewer-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:14px}.reviewed-assessment-viewer-heading h4{margin:0}.reviewed-assessment-viewer iframe{display:block;width:100%;height:78vh;min-height:480px;border:1px solid #e5e5e5;border-radius:10px;background:#fff}.reviewed-assessment .ant-alert{margin:14px 0}@media (max-width:600px){.reviewed-assessment header h3{font-size:20px}.reviewed-assessment-observations dl>div{grid-template-columns:minmax(0,1fr);gap:6px;padding:16px 0}.reviewed-assessment-summary{font-size:15px}.reviewed-assessment-actions{display:flex}.reviewed-assessment-actions .ant-space-item{flex:1}.reviewed-assessment-actions button{width:100%}.reviewed-assessment-viewer iframe{min-height:400px;height:76vh;border-radius:6px}}.learning-reports{display:grid;gap:24px}.learning-report-select{display:block;width:100%;max-width:560px;margin:16px 0}.learning-report-more{margin:0 0 16px}.reading-results{margin-top:20px}.reading-result{border-top:1px solid #e8e8e8;padding:14px 0}.reading-result summary{cursor:pointer;min-height:44px;line-height:1.6}.reading-result-status{display:block;color:#777;font-size:13px;margin-top:4px}.reading-result-body{display:grid;gap:12px;padding:12px 0}.reading-result-body h3,.reading-result-body p{margin:0}.reading-result-body h3{font-size:14px;font-weight:600}.reading-result-body blockquote{border-left:3px solid #ddd;margin:0;padding:8px 16px;color:#666}.reading-result-body button{justify-self:start}.reading-result-note{color:#777;font-size:13px;line-height:1.7}.reading-preserve{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.8}.reading-original{border-radius:12px;background:#f7f7f7;padding:16px}.book-reading-reports{border-top:1px solid #e8e8e8;padding:16px 0}.book-reading-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:12px 0;flex-wrap:wrap}.book-reading-head h3,.book-reading-head h4{margin:0}.book-reading-select{width:100%;margin:12px 0}.book-reading-report{padding:4px 0}.book-reading-report h3{font-size:16px}.book-reading-report h4{font-size:14px}.book-reading-report details>summary{min-height:44px;line-height:44px;cursor:pointer}.book-reading-observation{border:1px solid #eee;border-radius:12px;padding:12px;margin:12px 0}.book-reading-catalogue{padding-left:20px;line-height:1.9}.practice-review{max-width:980px;margin:0 auto}.practice-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}.practice-heading h2,.practice-heading h3{margin:0}.practice-review>.ant-alert{margin:18px 0}.practice-loading{padding:40px 0;color:#777;text-align:center}.practice-layout{margin-top:20px}.practice-list{display:grid;gap:0;border-top:1px solid #e7e7e7}.practice-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:7px 20px;padding:18px 12px;border:0;border-bottom:1px solid #e7e7e7;text-align:left;color:#222;background:transparent;cursor:pointer;border-radius:0;font:inherit}.practice-row:hover,.practice-row.selected{background:#f5f5f5}.practice-row strong{grid-column:1 / -1;font-size:15px;font-weight:500}.practice-row span{color:#777;font-size:13px}.practice-row:focus-visible{outline:2px solid #222;outline-offset:-2px}.practice-selection{margin:16px 0}.practice-pages{display:flex;align-items:center;gap:16px;justify-content:center;margin:20px 0}.practice-detail{margin-top:28px;padding-top:24px;border-top:1px solid #ddd}.practice-detail>.ant-alert{margin:14px 0}.practice-detail h4{font-size:15px;margin:0 0 12px;font-weight:600}.practice-original,.practice-answer,.practice-ink,.practice-verdict{margin:24px 0}.practice-original img{display:block;width:100%;height:auto;max-width:840px;border:1px solid #e7e7e7;background:#fff}.practice-original .ant-spin{margin:20px 0}.practice-source-note{color:#855f24;font-size:14px;line-height:1.7}.practice-ink canvas{display:block;width:100%;min-height:150px;border:1px solid #e7e7e7;background:#fff}.practice-answer .family-pre{line-height:1.8;overflow-wrap:anywhere}.practice-actions{display:flex;gap:12px;flex-wrap:wrap;margin:12px 0}.practice-verdict .family-muted{font-size:13px}.practice-history{border-top:1px solid #e7e7e7;padding:16px 0;color:#666;font-size:14px}.practice-history summary{cursor:pointer}@media (max-width: 620px){.practice-heading{align-items:flex-start}.practice-heading>div{display:flex}.practice-row{grid-template-columns:1fr}.practice-row strong{grid-column:auto}}.private-books{margin:24px 0;padding:0 0 24px;border-bottom:1px solid #e5e5e5;color:#171717}.private-books-heading{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:14px}.family-panel .private-books-heading h3{margin:0;font-size:17px;font-weight:600}.private-book-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:12px 0}.private-book-card{display:flex;align-items:center;gap:14px;border:1px solid #e4e4e4;border-radius:12px;background:#fff;padding:18px;text-align:left;cursor:pointer;color:inherit;min-width:0}.private-book-card:hover,.private-book-card.selected{border-color:#777;background:#fafafa}.private-book-card:focus-visible{outline:2px solid #3976d9;outline-offset:3px}.private-book-symbol{flex-shrink:0;display:grid;place-items:center;width:38px;height:48px;border:1px solid #ddd;border-left:4px solid #b1b8b2;border-radius:3px 6px 6px 3px;background:#f5f6f3;font-size:16px;color:#526054}.private-book-card strong{display:block;font-size:14px;line-height:1.6;overflow-wrap:anywhere}.private-book-card small{display:block;color:#777;margin-top:6px;font-size:12px}.private-book-detail{border-top:1px solid #e5e5e5;margin-top:24px;padding-top:20px}.private-book-loading{text-align:center;padding:32px;color:#777}.private-book-question-nav{display:flex;gap:8px;align-items:center;margin:18px 0}.private-book-question-nav .ant-select{flex:1;min-width:0}.private-book-question-heading{display:flex;gap:12px;align-items:center;margin:18px 0 12px}.private-book-question-heading span{font-size:12px;color:#777}.private-book-image{position:relative;min-height:74px;border:1px solid #ededed;border-radius:10px;background:#fff;padding:12px;overflow:hidden;text-align:center}.private-book-image>.ant-spin{margin:18px}.private-book-image img{display:block;max-width:100%;height:auto;margin:0 auto}.private-book-knowledge{padding:17px 0 8px}.private-book-knowledge>div{display:flex;flex-wrap:wrap;align-items:center;gap:10px}.private-book-knowledge strong{font-size:15px;line-height:1.65}.private-book-knowledge p{line-height:1.85;margin:10px 0;overflow-wrap:anywhere}.private-book-related,.private-book-notice{font-size:13px;color:#747474;line-height:1.8}.private-book-notice{margin:10px 0}.private-book-review{margin:10px 0 16px}.private-book-review p{margin:0;line-height:1.8}.private-book-review p+p{margin-top:8px}.private-book-lesson{padding:16px 0 0}.private-book-lesson>.ant-select{width:100%;margin-bottom:12px}.private-book-player video{display:block;width:100%;max-height:60vh;background:#111;border-radius:10px}.private-book-lesson-ended{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:12px 0;font-size:13px}.private-book-pagination{margin-top:22px;text-align:center}@media (max-width:750px){.private-book-cards{grid-template-columns:1fr}.private-book-card{padding:14px}.private-book-question-nav{flex-wrap:wrap}.private-book-question-nav .ant-select{flex-basis:100%;width:100%}.private-book-question-nav>.ant-btn{flex:1}.private-book-image{padding:5px}.private-book-question-heading{align-items:start;flex-direction:column;gap:4px}.private-books-heading{gap:10px}.private-book-player video{max-height:45vh}}.family-shell,.family-login{min-height:100vh;background:#f5f5ef;color:#283d36}.family-login{display:grid;grid-template-columns:1.15fr 1fr;align-items:center;gap:80px;padding:7vw;max-width:1600px;margin:auto}.family-brand{font-size:23px;font-weight:700;letter-spacing:2px}.family-brand span{display:inline-block;margin-left:14px;padding-left:14px;border-left:1px solid #ccd6cd;font-size:13px;letter-spacing:0;font-weight:400;color:#5a7266}.family-intro h1{font-size:clamp(34px,3.5vw,56px);line-height:1.4;letter-spacing:-1px;margin:64px 0 24px}.family-intro>p{font-size:18px;line-height:1.9;color:#6c7d71}.family-intro-points{display:flex;gap:16px;flex-wrap:wrap;margin-top:40px}.family-intro-points span{font-size:13px;padding:8px 12px;background:#e5ebe1;border-radius:20px}.family-login-card{background:#fff;padding:36px;border:1px solid #e5e8df;border-radius:20px;box-shadow:0 20px 70px #2843330a;max-width:500px;width:100%}.family-login-card h2{font-size:23px}.family-login-card p,.family-login-card small{color:#718176;line-height:1.8}.family-header{display:flex;justify-content:space-between;align-items:center;padding:26px max(24px,calc((100vw - 1180px)/2));background:#fff;border-bottom:1px solid #e1e6de;gap:20px}.family-account{display:flex;gap:12px}.family-content{max-width:1180px;margin:0 auto;padding:28px 24px}.family-refresh{display:flex;justify-content:space-between;align-items:center;color:#718176;font-size:13px;gap:16px;margin-bottom:14px}.family-panel{background:#fff;border:1px solid #e2e7df;border-radius:16px;padding:30px}.family-panel h2{margin:0 0 10px;font-size:23px}.family-panel>p{color:#6b7b70;line-height:1.8}.family-panel h3{margin-top:28px}.family-section-top{display:flex;justify-content:space-between;gap:16px;align-items:start}.family-section-top p{color:#718176}.family-muted{color:#718176;font-size:13px;line-height:1.8}.family-messages{min-height:260px;max-height:52vh;overflow:auto;padding:18px 0;display:flex;flex-direction:column;gap:16px}.family-message{background:#f5f6f0;border:1px solid #e7eadd;padding:18px;border-radius:12px;max-width:90%;align-self:flex-start}.family-message.from-parent{background:#e7f0e8;border-color:#d6e6da;align-self:flex-end}.family-message p,.family-pre{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.85}.family-message-meta{font-size:12px;color:#6b7c72}.family-composer{border-top:1px solid #e4e9e0;padding-top:18px}.family-composer-footer{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-top:12px}.family-composer-footer>span{font-size:12px;color:#758579}.family-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 25px}.family-memory{margin:16px 0;padding:18px;background:#f7f8f3;border:1px solid #e3e8df;border-radius:12px;overflow-wrap:anywhere}.family-memory p{white-space:pre-wrap;line-height:1.8}.family-memory-editor,.family-link{display:grid;gap:12px;max-width:700px;margin:24px 0}.family-memory-editor .ant-btn,.family-link .ant-btn{justify-self:start}.family-upload{padding:24px;border:1px dashed #aebea9;border-radius:12px;margin:24px 0;background:#fafbf7;line-height:1.8}.family-upload input{max-width:100%;margin:10px 16px 10px 0}.family-resource-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:22px 0}.family-resource{display:flex;align-items:start;flex-direction:column;gap:10px;text-align:left;background:#fff;border:1px solid #dfe6dc;border-radius:12px;padding:18px;color:inherit;cursor:pointer;overflow-wrap:anywhere;min-width:0}.family-resource.selected{border-color:#53755a;background:#f1f6ec}.family-resource span:last-child{font-size:12px;color:#6f7e70}.family-detail{border-top:1px solid #dfe6db;padding-top:15px}.family-process{background:#f5f7ef;padding:20px;border-radius:12px;display:flex;flex-direction:column;gap:14px;margin:20px 0}.family-process h4{margin:0}.family-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:24px 0}.family-stats>div{background:#f1f5eb;padding:22px;border-radius:12px;display:flex;flex-direction:column;gap:12px}.family-stats span{font-size:13px;color:#72816c}.family-stats strong{font-size:32px;font-weight:500}.family-task-list article{padding:16px 0;border-bottom:1px solid #e5e9df;display:flex;align-items:center;justify-content:space-between;gap:12px}.family-task-list h3{margin:0}.family-task-list p{color:#6e7b6a}.family-evidence{white-space:pre-wrap;word-break:break-word;max-height:65vh;overflow:auto}.family-loading{text-align:center;padding:100px 20px;color:#758579}.family-footer{text-align:center;font-size:12px;color:#8a9585;padding:18px}.family-panel .ant-alert{margin:12px 0}.family-panel .ant-checkbox-wrapper{line-height:2.2}.family-panel .ant-btn{height:auto;min-height:32px;white-space:normal}@media (max-width:750px){.family-login{display:block;padding:28px 20px}.family-intro h1{font-size:32px;margin:28px 0 12px}.family-intro>p{font-size:15px}.family-intro-points{margin:16px 0 24px;gap:8px}.family-login-card{padding:24px;max-width:none}.family-header{padding:18px;flex-wrap:wrap}.family-content{padding:16px 12px}.family-brand{font-size:20px}.family-panel{padding:20px 16px}.family-refresh{font-size:12px}.family-resource-list,.family-form-grid{grid-template-columns:1fr}.family-stats{grid-template-columns:1fr 1fr;gap:10px}.family-stats>div{padding:16px}.family-messages{max-height:45vh}.family-message{max-width:96%}.family-composer-footer{align-items:end}.family-composer-footer>span{max-width:60%}.family-section-top{flex-wrap:wrap}}.family-bind-device{max-width:460px;margin:40px auto}.family-account{flex-wrap:wrap}.family-login-card .ant-alert{margin-bottom:16px}.chat-shell{display:flex;height:100dvh;min-height:0;overflow:hidden;background:#fcfcfc;color:#0d0d0d;font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans SC,sans-serif}.chat-desktop-sidebar{width:330px;flex:0 0 330px;background:#fcfcfc;border-right:1px solid #ededed}.sidebar-collapsed .chat-desktop-sidebar{display:none}.chat-navigation{height:100%;display:flex;flex-direction:column;padding:12px 18px;color:#0d0d0d}.chat-sidebar-brand{display:flex;align-items:center;justify-content:space-between;gap:8px;height:48px;flex:0 0 48px;padding:0 4px 0 8px;margin-bottom:20px}.chat-sidebar-brand>span{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:600;letter-spacing:.5px}.chat-shell button,.chat-navigation button{font:inherit}.chat-icon-button{display:inline-flex;justify-content:center;align-items:center;width:36px;height:36px;flex-shrink:0;padding:0;border:0;border-radius:8px;background:transparent;color:#5d5d5d;cursor:pointer}.chat-icon-button:hover{background:#ececec;color:#0d0d0d}.chat-navigation button:focus-visible,.chat-shell button:focus-visible{outline:2px solid #8f8f8f;outline-offset:2px}.chat-nav-items{flex:1;min-height:0;overflow-y:auto}.chat-nav-items>button{display:flex;align-items:center;gap:12px;width:100%;padding:12px 10px;margin-bottom:2px;border:0;border-radius:9px;background:transparent;text-align:left;color:inherit;cursor:pointer;font-size:15px}.chat-nav-items>button:hover{background:#ececec}.chat-nav-items>button.active{background:#f0f0f0;color:#0d0d0d}.chat-nav-items>button>span:last-child{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-nav-items svg{flex-shrink:0}.chat-nav-label{padding:40px 10px 16px;color:#767676;font-size:12px}.chat-child-avatar{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;flex-shrink:0;border-radius:6px;background:#e8e8e8;font-size:11px}.chat-sidebar-account{display:flex;align-items:center;gap:4px;padding-top:8px}.chat-sidebar-account>button:first-child{display:flex;align-items:center;flex:1;gap:10px;padding:8px;border:0;border-radius:9px;background:transparent;color:inherit;text-align:left;cursor:pointer;font-size:15px}.chat-sidebar-account>button:hover{background:#ececec}.chat-account-avatar{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;background:#e5e5e5;color:#424242}.chat-account-avatar svg{width:16px;height:16px}.chat-main{display:flex;flex-direction:column;flex:1;min-width:0;height:100%}.chat-topbar{display:flex;align-items:center;gap:12px;height:72px;flex:0 0 72px;position:relative;padding:0 20px;font-size:20px;font-weight:500}.chat-sidebar-toggle{display:none}.sidebar-collapsed .chat-sidebar-toggle{display:inline-flex}.chat-page-content{flex:1;min-height:0;display:flex;flex-direction:column}.chat-page-content>.ant-alert{margin:0 24px 12px}.chat-conversation{display:flex;flex-direction:column;flex:1;min-height:0}.chat-timeline{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:#d9d9d9 transparent}.chat-stream,.chat-composer{width:min(920px,calc(100% - 100px));margin:0 auto}.chat-stream{padding:22px 0 20px}.chat-turn{display:flex;flex-direction:column;gap:24px;margin-bottom:32px}.chat-message{font-size:16px;line-height:1.75;overflow-wrap:anywhere}.chat-message p{margin:0;white-space:pre-wrap}.chat-message.from-parent{align-self:flex-end;max-width:85%;padding:12px 20px;background:#f4f4f4;border-radius:22px}.chat-message.from-assistant{padding:0 4px}.chat-message strong{font-weight:600}.chat-markdown{min-width:0}.chat-message .chat-markdown p{margin:0 0 .9em;white-space:pre-line}.chat-markdown :is(h1,h2,h3,h4,h5,h6){margin:1.4em 0 .65em;line-height:1.45;font-weight:600}.chat-markdown h1{font-size:1.5em}.chat-markdown h2{font-size:1.3em}.chat-markdown h3{font-size:1.13em}.chat-markdown :is(h4,h5,h6){font-size:1em}.chat-markdown :is(ul,ol){margin:.6em 0 1em;padding-left:1.6em}.chat-markdown li+li{margin-top:.3em}.chat-message .chat-markdown li>p{margin:.4em 0}.chat-markdown li>:is(ul,ol){margin:.3em 0}.chat-markdown blockquote{margin:1em 0;padding-left:1em;border-left:3px solid #ddd;color:#666}.chat-markdown a{color:#245b9b;text-decoration:underline;text-underline-offset:3px}.chat-markdown code{padding:.15em .35em;border-radius:4px;background:#f0f0f0;font-size:.9em}.chat-markdown pre{max-width:100%;overflow-x:auto;padding:14px 16px;border-radius:10px;background:#f4f4f4;line-height:1.6}.chat-markdown pre code{padding:0;background:none;white-space:pre;overflow-wrap:normal}.chat-markdown img{max-width:100%;height:auto}.chat-markdown hr{margin:1.5em 0;border:0;border-top:1px solid #e5e5e5}.chat-markdown>:first-child{margin-top:0}.chat-message .chat-markdown>:last-child{margin-bottom:0}.chat-markdown-table{max-width:100%;overflow-x:auto;margin:1em 0;scrollbar-width:thin}.chat-markdown-table:focus-visible{outline:2px solid #777;outline-offset:2px}.chat-markdown table{width:100%;border-collapse:collapse;text-align:left;font-size:.92em;line-height:1.65}.chat-markdown :is(th,td){min-width:8em;padding:10px 12px;border-bottom:1px solid #e5e5e5;vertical-align:top;overflow-wrap:normal}.chat-markdown th{border-top:1px solid #e5e5e5;background:#f5f5f5;font-weight:600}.chat-markdown :is(th,td):first-child{min-width:5em}.chat-markdown .task-list-item{list-style:none}.chat-markdown .task-list-item>input{margin-right:.5em}.chat-child-message{width:fit-content;margin-bottom:28px}.chat-child-message.from-parent{margin-left:auto}.chat-reply-pending{color:#767676;font-size:15px}.chat-ai-feedback{color:#444;font-size:15px;line-height:1.75;overflow-wrap:anywhere}.chat-ai-feedback-item+.chat-ai-feedback-item{margin-top:20px}.chat-ai-feedback-item.is-reasoning{padding-left:16px;border-left:2px solid #e5e5e5;color:#666}.chat-ai-feedback-label{display:block;margin-bottom:6px;color:#767676;font-size:13px}.chat-ai-feedback-history{margin-top:18px}.chat-ai-feedback-history>summary{width:fit-content;color:#767676;cursor:pointer;font-size:13px}.chat-ai-feedback-history>summary:focus-visible{outline:2px solid #777;outline-offset:4px;border-radius:2px}.chat-ai-feedback-history[open]>summary{margin-bottom:16px}.chat-loading{padding:80px 0;text-align:center}.chat-welcome{text-align:center;padding:0 0 40px}.chat-welcome h1{font-size:30px;font-weight:500;letter-spacing:-.35px;margin:0}.chat-conversation.is-empty{justify-content:center;padding-bottom:8vh}.chat-conversation.is-empty .chat-timeline{flex:0 0 auto;overflow:visible}.chat-conversation.is-empty .chat-stream{padding:0}.chat-composer{flex-shrink:0;padding:10px 0 max(20px,env(safe-area-inset-bottom))}.chat-composer>.ant-alert{margin-bottom:12px}.chat-input-box{display:flex;align-items:center;gap:16px;padding:10px 12px 10px 24px;min-height:64px;border:1px solid #e5e5e5;border-radius:34px;background:#fff;box-shadow:0 3px 14px #00000008;transition:border-color .15s}.chat-input-box:focus-within{border-color:#c6c6c6}.chat-input-box textarea.ant-input{padding:0 4px;color:#0d0d0d;font-size:18px;line-height:1.7;border:0;border-radius:0;background:transparent;resize:none;box-shadow:none!important}.chat-input-box textarea.ant-input::placeholder{color:#767676}.chat-input-actions{display:flex;justify-content:flex-end;flex:0 0 auto;align-self:flex-end;margin:0}.chat-input-actions .chat-send{width:42px;height:42px;min-width:42px;background:#0d0d0d;box-shadow:none;border:0;color:#fff}.chat-input-actions .chat-send:disabled{background:#e3e3e3;color:#fff}.chat-nav-drawer .ant-drawer-body{background:#fcfcfc}.family-workspace{display:flex;flex-direction:column;flex:1;min-height:0;padding:0 26px}.family-workspace>.ant-tabs{display:flex;flex-direction:column;flex:1;min-height:0}.family-workspace .ant-tabs-content-holder{min-height:0;overflow:auto}.family-workspace .ant-tabs-content,.family-workspace .ant-tabs-tabpane-active{height:100%}.family-workspace.is-chat .ant-tabs-content-holder{overflow:hidden}.family-workspace.is-chat .ant-tabs-tabpane-active{display:flex;flex-direction:column}.family-workspace .chat-stream,.family-workspace .chat-composer{width:min(768px,calc(100% - 24px))}.chat-learning-controls{width:min(768px,calc(100% - 24px));margin:0 auto;padding:8px 0;display:flex;align-items:center;flex-wrap:wrap;gap:12px;font-size:12px;color:#767676}.chat-learning-controls details{flex:1}.chat-learning-controls summary{cursor:pointer;width:fit-content}.chat-learning-controls details[open]{flex-basis:100%}.chat-learning-controls details>div,.chat-learning-controls details>p{padding:12px 0}.chat-conversation>.ant-alert{width:min(768px,calc(100% - 24px));margin:8px auto}.chat-conversation .family-message-meta{font-size:11px;color:#767676;margin-bottom:8px}@media (max-width: 750px){.chat-desktop-sidebar{display:none}.chat-topbar{height:56px;flex-basis:56px;padding:0 14px;gap:10px}.chat-sidebar-toggle{display:inline-flex}.chat-stream,.chat-composer{width:calc(100% - 32px)}.chat-stream{padding-top:14px}.chat-composer{padding:8px 0 max(14px,env(safe-area-inset-bottom))}.chat-message{font-size:15px;line-height:1.75}.chat-message.from-parent{max-width:90%;padding:11px 16px;border-radius:19px}.chat-turn{gap:24px;margin-bottom:28px}.chat-input-box{border-radius:30px;min-height:58px;padding:8px 10px 8px 18px;gap:10px}.chat-input-box textarea.ant-input{font-size:16px}.chat-input-actions .chat-send{width:40px;height:40px;min-width:40px}.chat-conversation.is-empty{padding-bottom:10vh}.chat-welcome{padding-bottom:22px}.family-workspace{padding:0 14px}.family-workspace .chat-stream,.family-workspace .chat-composer{width:100%}}.chat-nav-items>.chat-history-item{display:block;padding:12px 10px;font-size:15px}.chat-history-item span{display:block;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.chat-turn{scroll-margin-top:24px}.chat-shell .family-panel{color:#0d0d0d;border-color:#e5e5e5}.chat-shell .family-panel>p,.chat-shell .family-muted{color:#767676}.chat-shell .ant-tabs-tab,.chat-shell .ant-tabs-tab-btn{color:#5d5d5d}.chat-shell .ant-tabs-tab-active .ant-tabs-tab-btn{color:#0d0d0d}.chat-shell .ant-tabs-ink-bar{background:#0d0d0d}.chat-nav-items>button:disabled{opacity:.45;cursor:wait}.chat-topbar>.chat-sidebar-toggle{position:absolute;left:16px}.chat-child-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 26px 12px}.chat-child-heading .ant-select{min-width:140px}@media (max-width: 750px){.chat-child-heading{padding:8px 14px}}.chat-shell .family-stats>div{background:#f4f4f4}.chat-shell .family-stats span{color:#777}.chat-current-title{min-width:0;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:15px;font-weight:500;color:#5d5d5d}.chat-context-select{max-width:200px;min-width:100px;padding:7px 28px 7px 10px;border:1px solid #e5e5e5;border-radius:8px;background-color:#fff;color:#424242;font:inherit;font-size:14px;text-overflow:ellipsis}.chat-context-select:focus-visible{outline:2px solid #666;outline-offset:2px}.chat-topbar>.chat-context-select{margin-left:auto;max-width:45%;flex-shrink:0}.sidebar-collapsed .chat-current-title{margin-left:42px}.chat-history-status{padding:10px;color:#767676;font-size:12px;line-height:1.6}.chat-history-status span{display:block}.chat-history-status button{border:0;padding:4px 0;color:#424242;background:transparent;cursor:pointer;text-decoration:underline}.chat-nav-items>.chat-history-more{color:#767676;font-size:12px}.chat-earlier-messages{text-align:center;padding-bottom:22px}.chat-earlier-messages>span{display:block;color:#767676;font-size:12px}@media (max-width: 750px){.chat-current-title{margin-left:42px}}.chat-input-box.has-tools{padding-left:12px;gap:10px}.chat-input-box textarea.ant-input{flex:1;min-width:0}.chat-input-actions{gap:8px;align-items:center}.chat-attach-button{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;flex:0 0 38px;padding:0;background:transparent;color:#555;border:0;border-radius:50%;cursor:pointer}.chat-attach-button:hover{background:#f0f0f0;color:#111}.chat-attach-button:disabled{opacity:.4;cursor:default}.chat-attach-button svg{width:25px;height:25px}.chat-file-input{display:none}.chat-effort{position:relative}.chat-effort-trigger{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:38px;padding:7px 12px;border:0;border-radius:22px;background:#f3f3f3;color:#555;white-space:nowrap;cursor:pointer;font-size:13px!important}.chat-effort-trigger:hover,.chat-effort-trigger.is-open{background:#eaeaea;color:#111}.chat-effort-trigger:disabled{opacity:.45;cursor:default}.chat-effort-popover{position:absolute;bottom:calc(100% + 16px);right:0;z-index:20;width:280px;max-width:calc(100vw - 40px);padding:19px 18px 14px;border:1px solid #e7e7e7;border-radius:22px;background:#fff;box-shadow:0 8px 32px #0000001a}.chat-effort-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:0 3px 10px;font-size:13px;color:#777}.chat-effort-heading strong{font-size:15px;font-weight:500;color:#171717}.chat-effort-slider{position:relative;height:44px}.chat-effort-track{position:absolute;display:flex;align-items:center;justify-content:space-between;left:16px;right:16px;top:14px;height:16px;border-radius:20px;background:#e6e6e6}.chat-effort-track>div{position:absolute;width:var(--effort-progress);height:100%;border-radius:inherit;background:#242424}.chat-effort-track>i{display:block;z-index:1;width:4px;height:4px;border-radius:50%;background:#ababab}.chat-effort-track>i.is-unavailable{opacity:.2}.chat-effort-slider input{-moz-appearance:none;appearance:none;-webkit-appearance:none;position:relative;width:100%;height:44px;margin:0;background:transparent;cursor:pointer;touch-action:pan-y}.chat-effort-slider input::-webkit-slider-runnable-track{height:16px;background:transparent}.chat-effort-slider input::-moz-range-track{height:16px;background:transparent}.chat-effort-slider input::-webkit-slider-thumb{-moz-appearance:none;appearance:none;-webkit-appearance:none;width:32px;height:32px;margin-top:-8px;border:1px solid #dedede;border-radius:50%;background:#fff;box-shadow:0 1px 5px #00000020}.chat-effort-slider input::-moz-range-thumb{width:30px;height:30px;border:1px solid #dedede;border-radius:50%;background:#fff;box-shadow:0 1px 5px #00000020}.chat-effort-slider input:focus-visible{outline:2px solid #777;outline-offset:1px;border-radius:20px}.chat-effort-labels{display:flex;justify-content:space-between;padding:0 3px;color:#888;font-size:11px}.chat-model-popover{width:320px}.chat-model-popover .ant-form-item{margin-bottom:20px}.chat-model-popover .ant-form-item-label>label{color:#777;font-size:13px}.chat-model-popover .ant-alert{margin-bottom:12px}.chat-model-actions{display:flex;justify-content:flex-end;margin-top:18px}.chat-draft-attachments{display:flex;gap:8px;flex-wrap:wrap;padding:0 8px 10px}.chat-attachment-card{display:flex;position:relative;align-items:center;gap:10px;width:min(260px,100%);min-width:0;padding:10px 30px 10px 10px;border:1px solid #e5e5e5;border-radius:16px;background:#fff}.chat-attachment-preview{display:flex;align-items:center;justify-content:center;width:42px;height:46px;flex-shrink:0;overflow:hidden;border-radius:8px;background:#f2f2f2;color:#666}.chat-attachment-preview img{width:100%;height:100%;object-fit:cover}.chat-attachment-info{min-width:0}.chat-attachment-info>span{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px;line-height:1.5}.chat-attachment-info small{display:block;font-size:11px;color:#888;line-height:1.6}.chat-attachment-card.is-failed{border-color:#e0c4c4}.chat-attachment-card.is-failed small{color:#a43b3b}.chat-attachment-retry{padding:1px 0;border:0;background:transparent;font-size:12px!important;text-decoration:underline;color:#555;cursor:pointer}.chat-attachment-remove{position:absolute;right:4px;top:4px;display:flex;align-items:center;justify-content:center;width:24px;height:24px;padding:0;border:0;border-radius:50%;background:transparent;color:#888;cursor:pointer}.chat-attachment-remove svg{width:14px;height:14px}.chat-attachment-remove:hover{background:#f0f0f0}.chat-attachment-remove:disabled,.chat-attachment-retry:disabled{opacity:.35;cursor:default}.chat-attachment-error{padding:0 10px 10px;font-size:12px;color:#a43b3b}.chat-message-attachments{display:flex;flex-wrap:wrap;gap:8px}.chat-message-attachments+p{margin-top:10px}.chat-message-attachment{display:flex;align-items:center;gap:10px;max-width:100%;padding:8px 10px;border:1px solid #dedede;border-radius:12px;background:#fff;text-align:left;color:#333;cursor:pointer}.chat-message-attachment>svg{flex-shrink:0}.chat-message-attachment>span{min-width:0}.chat-message-attachment>span>span{display:block;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;font-size:13px}.chat-message-attachment small{display:block;font-size:11px;color:#888}.chat-message-attachments>small{flex-basis:100%;color:#a43b3b;font-size:12px}@media (max-width: 500px){.chat-input-box.has-tools{display:grid;grid-template-columns:36px minmax(0,1fr);padding:10px;gap:5px 7px;border-radius:26px}.chat-input-box.has-tools textarea.ant-input{min-height:36px;padding-top:4px}.chat-input-box.has-tools .chat-input-actions{grid-column:1 / -1;justify-content:flex-end}.chat-effort-trigger{min-height:34px;padding:6px 11px}.chat-effort-popover{right:-46px}.chat-attachment-card{width:100%}}.chat-byok-trigger{min-width:0;max-width:min(260px,calc(100vw - 132px))}.chat-byok-trigger>span:first-child{overflow:hidden;text-overflow:ellipsis}
