.knowledge-account-page{background:#fbfaf8}.knowledge-page-shell{display:flex;flex-direction:column;gap:22px;padding-top:42px;padding-bottom:70px}.knowledge-hero{border:0;border-radius:0;background:transparent;overflow:visible;box-shadow:none}.knowledge-hero-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;padding:0 0 22px}.knowledge-hero-head h1{margin:7px 0 8px;font-size:48px;line-height:1.02;letter-spacing:-.035em}.knowledge-hero-head p{margin:0;color:#727780;font-size:15px;line-height:1.65;max-width:820px}.knowledge-hero-actions{display:flex;gap:8px}.knowledge-searchbar{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px;margin:0 0 22px;max-width:720px}.knowledge-searchbar input{height:46px;border:1px solid #dddfe5;border-radius:12px;padding:0 14px;font-size:14px;background:#fcfcfd}.knowledge-searchbar button{border:0;border-radius:12px;background:#151724;color:#fff;padding:0 20px;font-weight:800;cursor:pointer}.knowledge-workspace{display:grid;grid-template-columns:245px minmax(0,1fr);min-height:610px;border-top:1px solid #e9e5df;border-bottom:1px solid #e9e5df}.knowledge-tree-panel{padding:18px 12px 24px;border-right:1px solid #eeeae5;background:#faf9f7}.knowledge-tree-root,.knowledge-tree-node{width:100%;display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:8px;border:0;background:transparent;border-radius:10px;padding:10px 10px;text-align:left;color:#4c5058;cursor:pointer}.knowledge-tree-root span,.knowledge-tree-node span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.knowledge-tree-root em,.knowledge-tree-node em{font-style:normal;font-size:11px;color:#a2a5ad}.knowledge-tree-root{font-weight:800}.knowledge-tree-node{padding-left:calc(10px + var(--depth,0)*16px);font-size:13px}.knowledge-tree-node.special{margin:8px 0 4px;color:#6757df}.knowledge-tree-root.active,.knowledge-tree-node.active{background:#efedff;color:#5446db}.knowledge-tree-empty{padding:12px;color:#a0a3aa;font-size:12px}.knowledge-content-panel{min-width:0;padding:26px 28px 32px}.knowledge-content-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:18px}.knowledge-content-head h3{margin:4px 0 5px;font-size:24px}.knowledge-content-head p{margin:0;color:#8b8f97;font-size:13px}.knowledge-breadcrumb{color:#7a6cf0;font-size:11px;font-weight:800;letter-spacing:.02em}.knowledge-content-actions{display:flex;gap:8px}.knowledge-content-actions button{border:1px solid #dde0e6;border-radius:10px;background:#fff;padding:9px 12px;font-weight:750;cursor:pointer}.knowledge-content-actions button:disabled{opacity:.35;cursor:not-allowed}.knowledge-folder-strip{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:10px;margin-bottom:18px}.knowledge-folder-strip button{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:8px;border:1px solid #e4e6eb;border-radius:12px;background:#fff;padding:12px 13px;text-align:left;cursor:pointer}.knowledge-folder-strip .folder-icon{color:#7767ed}.knowledge-folder-strip strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px}.knowledge-folder-strip em{font-style:normal;color:#999da5;font-size:11px}.knowledge-item-list{display:flex;flex-direction:column;gap:10px}.knowledge-item-card{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:18px;padding:17px 18px;border:1px solid #e6e7eb;border-radius:14px;background:#fff}.knowledge-item-main{text-decoration:none;color:inherit;min-width:0}.knowledge-item-top{display:flex;align-items:center;gap:8px;color:#6558e7;font-size:11px;font-weight:800}.knowledge-item-top em{font-style:normal;color:#8d919a;background:#f4f5f7;border-radius:999px;padding:3px 7px}.knowledge-item-card h4{margin:7px 0 7px;font-size:17px}.knowledge-item-card p{margin:0 0 8px;color:#5f646e;font-size:13px;line-height:1.6;white-space:pre-wrap}.knowledge-item-card p.muted-note{color:#a0a4ac}.knowledge-item-card small{color:#8e929b;font-size:11px}.knowledge-tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px}.knowledge-tags i{font-style:normal;font-size:10px;color:#6757df;background:#f0eeff;border-radius:999px;padding:4px 7px}.knowledge-item-actions{display:flex;align-items:flex-start;gap:5px}.knowledge-item-actions button{border:0;background:#f6f6f7;border-radius:8px;padding:7px 9px;color:#666b73;font-size:11px;cursor:pointer}.knowledge-empty-state{padding:58px 20px;text-align:center;border:1px dashed #dedfe3;border-radius:16px;color:#888c94}.knowledge-empty-state strong{display:block;color:#3f4248;font-size:16px}.knowledge-empty-state p{margin:7px 0 0;font-size:12px}.knowledge-login-gate{margin:0 0 28px;padding:42px 28px;border:1px dashed #d8d4f7;border-radius:18px;background:#faf9ff;text-align:center}.knowledge-login-gate strong{display:block;font-size:20px}.knowledge-login-gate p{margin:8px auto 18px;color:#777c86;max-width:560px}.my-learning-summary-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.my-learning-summary-grid>section:last-child{grid-column:1/-1}.knowledge-queue-list{display:flex;flex-direction:column}.knowledge-queue-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:center;padding:12px 0;border-top:1px solid #eceef2}.knowledge-queue-row:first-child{border-top:0}.knowledge-queue-main{display:flex;flex-direction:column;gap:4px;text-decoration:none;color:inherit}.knowledge-queue-main strong{font-size:14px}.knowledge-queue-main small{font-size:11px;color:#8b9099}.knowledge-queue-row>button{border:1px solid #dddfe5;background:#fff;border-radius:8px;padding:7px 9px;cursor:pointer}.knowledge-summary-more{margin-top:10px;color:#999da5;font-size:11px}.account-utility{border:1px solid #e6e2dc;border-radius:16px;background:#fff}.account-utility summary{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 20px;cursor:pointer;list-style:none}.account-utility summary::-webkit-details-marker{display:none}.account-utility summary div{display:flex;flex-direction:column;gap:3px}.account-utility summary strong{font-size:15px}.account-utility summary>span{font-size:12px;color:#8174e6}.account-actions-compact{padding:0 18px 18px;grid-template-columns:1fr 1fr}.knowledge-modal-backdrop{position:fixed;z-index:100000;inset:0;display:grid;place-items:center;padding:20px;background:rgba(22,24,31,.45);backdrop-filter:blur(5px)}.knowledge-modal{width:min(520px,100%);border-radius:18px;background:#fff;box-shadow:0 26px 90px rgba(0,0,0,.24);overflow:hidden}.knowledge-modal-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid #eceef1}.knowledge-modal-head h3{margin:0;font-size:19px}.knowledge-modal-head button{border:0;background:transparent;font-size:26px;color:#888;cursor:pointer}.knowledge-modal-body{padding:18px 20px}.knowledge-modal-body label{display:flex;flex-direction:column;gap:6px;margin-bottom:13px;color:#5e626b;font-size:12px;font-weight:750}.knowledge-modal-body input,.knowledge-modal-body select,.knowledge-modal-body textarea{width:100%;box-sizing:border-box;border:1px solid #dcdfe5;border-radius:10px;padding:10px 11px;background:#fff;font:inherit;font-weight:500;color:#25272c}.knowledge-modal-body textarea{resize:vertical}.knowledge-modal-warning{font-size:11px;line-height:1.55;color:#9a6b56;background:#fff7f1;border-radius:9px;padding:9px 10px}.knowledge-modal-actions{display:flex;justify-content:flex-end;gap:8px;padding:0 20px 18px}.knowledge-modal-actions button{border:1px solid #d8dbe2;background:#fff;border-radius:9px;padding:9px 13px;font-weight:750;cursor:pointer}.knowledge-modal-actions button.primary{background:#5d62e8;border-color:#5d62e8;color:#fff}.knowledge-toast{position:fixed;z-index:100001;left:50%;bottom:28px;transform:translate(-50%,10px);opacity:0;pointer-events:none;background:#171923;color:#fff;border-radius:999px;padding:10px 15px;font-size:12px;transition:.18s}.knowledge-toast.show{opacity:1;transform:translate(-50%,0)}.learning-group-more{display:block;margin:12px auto 0;border:1px solid #dedfe4;border-radius:10px;background:#fff;padding:8px 13px;font-size:12px;font-weight:750;cursor:pointer}
@media(max-width:980px){.knowledge-workspace{grid-template-columns:200px minmax(0,1fr)}.my-learning-summary-grid{grid-template-columns:1fr}.my-learning-summary-grid>section:last-child{grid-column:auto}.knowledge-content-panel{padding:22px 18px}.knowledge-page-shell{padding-top:32px}.knowledge-hero-head{padding:0 0 20px}.knowledge-hero-head h1{font-size:42px}.knowledge-searchbar{margin-left:0;margin-right:0}.account-actions-compact{grid-template-columns:1fr}}
@media(max-width:720px){.knowledge-page-shell{padding-top:24px}.knowledge-hero-head h1{font-size:36px}.knowledge-workspace{display:block}.knowledge-tree-panel{border-right:0;border-bottom:1px solid #eeeae5;max-height:260px;overflow:auto}.knowledge-hero-head{align-items:flex-start;flex-direction:column}.knowledge-content-head{flex-direction:column}.knowledge-item-card{grid-template-columns:1fr}.knowledge-item-actions{justify-content:flex-end}.knowledge-searchbar{grid-template-columns:1fr}.knowledge-searchbar button{height:42px}}


/* V12.64 · Personal-first knowledge search */
.knowledge-search-hint{margin:-14px 0 22px;color:#969aa3;font-size:11px;line-height:1.55}.knowledge-search-section{margin:0 0 22px}.knowledge-search-section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin:0 0 12px;padding:0 2px}.knowledge-search-section-head>div{display:flex;align-items:center;gap:8px}.knowledge-search-section-head strong{font-size:15px;color:#2c2f36}.knowledge-search-section-head span{font-size:10px;color:#6b5fe9;background:#f0eeff;border-radius:999px;padding:4px 7px}.knowledge-search-section-head p{margin:0;color:#999da5;font-size:11px}.knowledge-match-reasons{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0 9px}.knowledge-match-reason{display:inline-flex;align-items:center;gap:5px;max-width:100%;border-radius:8px;background:#f6f5ff;padding:5px 7px;color:#5d58a9;font-size:10px;line-height:1.35}.knowledge-match-reason b{font-weight:800;white-space:nowrap}.knowledge-match-reason em{font-style:normal;color:#737780;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:420px}.knowledge-match-reason.note{background:#f7f7f8;color:#62666e}.knowledge-match-reason.folder{background:#f4f7ff;color:#5269a9}.knowledge-match-reason.lesson,.knowledge-match-reason.course{background:#faf7f2;color:#8b6d4f}.knowledge-source-results{margin:24px 0 0;border-top:1px solid #e8e5df;padding-top:14px}.knowledge-source-results summary{display:flex;align-items:center;justify-content:space-between;gap:12px;list-style:none;cursor:pointer;border-radius:10px;padding:10px 12px;background:#f8f7f5;color:#62666e;font-size:12px;font-weight:750}.knowledge-source-results summary::-webkit-details-marker{display:none}.knowledge-source-results summary em{font-style:normal;color:#a0a3aa;font-size:10px;font-weight:600}.knowledge-source-explain{margin:10px 2px 12px;color:#999da5;font-size:11px;line-height:1.55}.knowledge-search-section.source-only .knowledge-search-section-head{padding-bottom:10px;border-bottom:1px solid #ece9e4}
@media(max-width:720px){.knowledge-search-section-head{align-items:flex-start;flex-direction:column;gap:5px}.knowledge-match-reason em{max-width:220px}.knowledge-source-results summary{align-items:flex-start;flex-direction:column;gap:3px}}

/* V12.65 · Knowledge capture simplification + queue cards */
.knowledge-queue-list{display:grid;gap:12px;margin-top:14px}
.knowledge-queue-card{position:relative;display:grid;grid-template-columns:126px minmax(0,1fr) auto;gap:14px;align-items:center;padding:12px;border:1px solid #e8e3dc;border-radius:17px;background:#fff;box-shadow:0 7px 22px rgba(32,27,21,.03)}
.knowledge-queue-cover{width:126px;aspect-ratio:16/10;border-radius:11px;overflow:hidden;background:linear-gradient(135deg,#28284b,#7962ef);display:flex;align-items:center;justify-content:center;text-decoration:none;color:#fff;font-size:10px;font-weight:850}
.knowledge-queue-cover img{width:100%;height:100%;display:block;object-fit:cover}
.knowledge-queue-body{min-width:0;padding-right:2px}
.knowledge-queue-title{display:block;color:#28231f;text-decoration:none;font-size:15px;font-weight:850;line-height:1.35;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:7px}
.knowledge-queue-title:hover{color:#6553d8}
.knowledge-queue-meta{font-size:11px;color:#79736d;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.knowledge-queue-foot{margin-top:8px;font-size:10px;color:#9a938b}
.knowledge-queue-play{min-width:74px;text-align:center;white-space:nowrap}
.knowledge-queue-remove{position:absolute;right:10px;top:9px;border:0!important;background:transparent!important;padding:4px 6px!important;color:#aaa4a0!important;font-size:10px!important}
.knowledge-queue-remove:hover{color:#6d665f!important;background:#f5f3f0!important}
.knowledge-time-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.knowledge-time-grid label{margin-bottom:0}
.knowledge-modal-tip{margin:-2px 0 13px;color:#92969e;font-size:10px;line-height:1.55}
@media(max-width:720px){.knowledge-queue-card{grid-template-columns:105px minmax(0,1fr)}.knowledge-queue-cover{width:105px}.knowledge-queue-play{grid-column:2;justify-self:start}.knowledge-time-grid{grid-template-columns:1fr}}


/* V12.76 · Knowledge batch organize */
.knowledge-content-actions button[data-batch-toggle].active{border-color:#6b5fe9;background:#f0eeff;color:#5549d8}
.knowledge-batch-toolbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:-4px 0 16px;padding:10px 12px;border:1px solid #dedbf8;border-radius:12px;background:#faf9ff}
.knowledge-batch-toolbar[hidden]{display:none!important}.knowledge-batch-toolbar strong{margin-right:2px;color:#4f45c8;font-size:12px}.knowledge-batch-toolbar button{border:1px solid #dcddea;border-radius:9px;background:#fff;padding:7px 10px;color:#565b64;font-size:11px;font-weight:800;cursor:pointer}.knowledge-batch-toolbar button:disabled{opacity:.38;cursor:not-allowed}.knowledge-batch-toolbar button[data-batch-move]{border-color:#6258df;background:#6258df;color:#fff}.knowledge-batch-toolbar span{margin-left:auto;color:#979aa2;font-size:10px}
.knowledge-item-selector{display:none;width:22px;height:22px;place-items:center;align-self:flex-start;margin-top:1px;border:1.5px solid #cfd2da;border-radius:50%;background:#fff;padding:0;cursor:pointer}.knowledge-item-selector span{width:9px;height:9px;border-radius:50%;background:transparent;transition:.14s}.knowledge-workspace.batch-mode .knowledge-item-selector{display:grid}.knowledge-workspace.batch-mode .knowledge-item-card{grid-template-columns:auto minmax(0,1fr) auto;cursor:grab;transition:border-color .14s,box-shadow .14s,transform .14s}.knowledge-workspace.batch-mode .knowledge-item-main{cursor:pointer}.knowledge-workspace.batch-mode .knowledge-item-actions{opacity:.34;pointer-events:none}.knowledge-item-card.selected{border-color:#8d83f4;box-shadow:0 0 0 2px rgba(109,95,232,.09)}.knowledge-item-card.selected .knowledge-item-selector{border-color:#6558e7;background:#6558e7}.knowledge-item-card.selected .knowledge-item-selector span{background:#fff}.knowledge-item-card.dragging{opacity:.52;transform:scale(.995)}
.knowledge-drop-target{transition:background .14s,border-color .14s,box-shadow .14s}.knowledge-workspace.batch-mode .knowledge-folder-strip .knowledge-drop-target,.knowledge-workspace.batch-mode .knowledge-tree .knowledge-drop-target{position:relative}.knowledge-drop-target.drag-over{border-color:#6558e7!important;background:#f0eeff!important;box-shadow:0 0 0 3px rgba(101,88,231,.13)!important;color:#5144d3!important}
@media(max-width:720px){.knowledge-batch-toolbar{align-items:flex-start}.knowledge-batch-toolbar span{width:100%;margin-left:0}.knowledge-workspace.batch-mode .knowledge-item-card{grid-template-columns:auto minmax(0,1fr)}.knowledge-workspace.batch-mode .knowledge-item-actions{display:none}}


/* V12.77 · Knowledge folder semantics */
.knowledge-tree-create-root{display:flex;width:100%;align-items:center;justify-content:flex-start;margin:8px 0 14px;padding:9px 12px;border:1px dashed #d6d2e9;border-radius:10px;background:#faf9ff;color:#5c54c7;font-size:11px;font-weight:850;cursor:pointer;text-align:left}.knowledge-tree-create-root:hover{border-color:#8d83ee;background:#f2f0ff;color:#5046c9}.knowledge-modal-context{margin:-2px 0 14px;padding:10px 12px;border-radius:10px;background:#f7f6ff;color:#6661a3;font-size:11px;line-height:1.6}.knowledge-modal-context strong{color:#4d43c8}.knowledge-content-actions [hidden]{display:none!important}
@media(max-width:720px){.knowledge-tree-create-root{margin-bottom:10px}}