#knowledgeRoot{--kb-purple:#7462e8;max-width:1480px;margin:auto}.kb-heading{display:flex;align-items:center;justify-content:flex-end;gap:20px;margin-bottom:18px}.kb-eyebrow{color:var(--accent);font-weight:650;font-size:12px;letter-spacing:.05em}.kb-heading h1{font-size:30px;margin:7px 0}.kb-heading p{color:var(--muted);margin:0}.kb-overview{white-space:nowrap;padding:10px 16px;border:1px solid var(--line);border-radius:12px;color:var(--accent);background:var(--panel);text-decoration:none}.kb-layout{display:grid;grid-template-columns:230px minmax(0,1fr);gap:24px;align-items:start}.kb-nav{position:sticky;top:94px;border:1px solid var(--line);border-radius:18px;background:var(--panel);overflow:hidden}.kb-nav-toggle{padding:16px;font-weight:650;cursor:pointer;list-style:none;border-bottom:1px solid var(--line)}.kb-nav-toggle span{display:none}.kb-nav nav{max-height:calc(100vh - 180px);overflow:auto;padding:12px}.kb-nav button,.kb-nav a{font:inherit;text-align:left;border:0;cursor:pointer;text-decoration:none;color:var(--muted);background:none;border-radius:9px;padding:9px 10px;width:100%;display:block;font-size:12px;line-height:1.6}.kb-group{font-size:11px;color:var(--muted);margin:20px 10px 7px;letter-spacing:.06em}.kb-nav details summary{font-size:13px;cursor:pointer;padding:10px 5px;color:var(--text);font-weight:600}.kb-nav .kb-leaf{padding-left:20px;margin:2px 0}.kb-nav .selected,.kb-nav a:hover,.kb-nav button:hover{background:var(--soft);color:var(--accent)}.kb-main{min-width:0}.kb-banner{border:1px solid #ddd6fc;border-radius:22px;background:linear-gradient(125deg,#f0ecff,#eaf7fb);padding:28px 32px;color:#342962}.kb-banner>span{font-size:12px;color:#7863ce;letter-spacing:.1em}.kb-banner h2{font-size:28px;line-height:1.45;margin:12px 0}.kb-banner p{color:#77748c;margin:0}.kb-search{display:flex;align-items:center;gap:12px;background:var(--panel);border:1px solid var(--line);border-radius:13px;padding:0 16px;margin:22px 0}.kb-search>span{font-size:24px;color:var(--accent)}.kb-search input{min-width:0;flex:1;border:0;outline:none;background:none;color:var(--text);font:inherit;padding:14px 0}.kb-search:focus-within{border-color:var(--accent)}.kb-section-title{display:flex;align-items:center;justify-content:space-between;margin:24px 0 16px}.kb-section-title h2{font-size:19px;margin:0}.kb-section-title span{color:var(--muted);font-size:12px}.kb-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.kb-card{color:var(--text);text-decoration:none;background:var(--panel);border:1px solid var(--line);border-radius:18px;overflow:hidden;display:flex;flex-direction:column;transition:transform .18s,box-shadow .18s}.kb-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.kb-card>img{width:100%;aspect-ratio:3/2;object-fit:cover;background:#f4f3fb;border-bottom:1px solid var(--line)}.kb-card-body{padding:18px;display:flex;flex-direction:column;flex:1}.kb-tag{color:var(--accent);background:var(--soft);border-radius:7px;padding:4px 8px;font-size:11px;align-self:flex-start;display:inline-block}.kb-card h3{font-size:17px;line-height:1.6;margin:12px 0 7px}.kb-card p{font-size:13px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0 0 18px}.kb-card-foot{margin-top:auto;display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:11px}.kb-card-foot>span:last-child{color:var(--accent);font-size:18px}.kb-empty{padding:60px 20px;text-align:center;color:var(--muted)}.kb-back{display:inline-block;margin:0 0 18px;color:var(--accent);text-decoration:none}.kb-article{border:1px solid var(--line);border-radius:20px;background:var(--panel);overflow:hidden}.kb-article header{padding:32px 36px 24px}.kb-article header h1{font-size:29px;line-height:1.5;margin:16px 0}.kb-article header p{color:var(--muted);line-height:1.8}.kb-meta{display:flex;gap:8px;flex-wrap:wrap;font-size:12px;color:var(--muted)}.kb-meta span{padding:4px 9px;border:1px solid var(--line);border-radius:7px}.kb-hero-image{display:block;width:100%;height:auto}.kb-body{padding:16px 36px 36px;font-size:15px;line-height:1.95;overflow-wrap:anywhere}.kb-body h2{font-size:23px;margin:34px 0 14px;line-height:1.5;scroll-margin-top:100px}.kb-body h3{font-size:18px;margin:24px 0 10px}.kb-body p{margin:12px 0}.kb-body img{max-width:100%;height:auto;display:block;margin:22px auto;border-radius:12px}.kb-body ul,.kb-body ol{padding-left:1.5em}.kb-body li{margin:6px 0}.kb-body blockquote{margin:20px 0;padding:12px 20px;border-left:3px solid var(--accent);background:var(--soft);border-radius:0 10px 10px 0}.kb-body pre{white-space:pre-wrap;background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:18px;overflow:auto}.kb-body code{font-size:.9em}.kb-body table{display:block;overflow:auto;border-collapse:collapse;width:100%;font-size:13px}.kb-body th,.kb-body td{padding:10px;border:1px solid var(--line);min-width:110px}.kb-body th{background:var(--soft)}.kb-body a{color:var(--accent)}.kb-toc{margin:24px 36px 0;padding:14px 18px;border:1px solid var(--line);border-radius:12px}.kb-toc summary{cursor:pointer;font-weight:600}.kb-toc button{display:block;border:0;background:none;text-align:left;padding:8px 0;color:var(--muted);font:inherit;cursor:pointer}.kb-article-nav{display:flex;justify-content:space-between;padding:22px 36px;border-top:1px solid var(--line)}.kb-article-nav a{color:var(--accent);text-decoration:none}@media(min-width:1550px){.kb-cards{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:1100px){.kb-layout{grid-template-columns:205px minmax(0,1fr);gap:18px}.kb-card-body{padding:14px}}@media(max-width:900px){.kb-layout{display:block}.kb-nav{position:static;margin-bottom:20px}.kb-nav-toggle span{display:inline;float:right;font-size:12px;color:var(--muted);font-weight:400}.kb-nav nav{max-height:55vh}.kb-heading h1{font-size:26px}.kb-heading{gap:10px}.kb-overview{font-size:12px;padding:8px 10px}.kb-banner{padding:22px}.kb-banner h2{font-size:25px}.kb-cards{gap:12px}.kb-card h3{font-size:15px}.kb-card p{font-size:12px}.kb-card-body{padding:13px}.kb-article header{padding:24px 20px 18px}.kb-article header h1{font-size:24px}.kb-body{padding:12px 20px 24px}.kb-toc{margin:20px 20px 0}.kb-article-nav{padding:20px}.kb-heading p{font-size:12px}}@media(max-width:420px){.kb-cards{grid-template-columns:1fr}.kb-card h3{font-size:17px}.kb-banner h2{font-size:23px}}@media(prefers-reduced-motion:reduce){.kb-card{transition:none}}


/* Knowledge categories share the main resource navigation. */
.kb-layout{display:block}.kb-cards{grid-template-columns:repeat(3,minmax(0,1fr))}
.kb-side-arrow{margin-left:auto;font-size:15px}.kb-side-tree[hidden]{display:none!important}
.kb-side-tree{margin:4px 0 12px 26px;padding-left:12px;border-left:1px solid var(--line)}
.kb-side-tree summary{font-size:11px;color:var(--muted);padding:12px 4px 6px;cursor:pointer}
.kb-side-tree .grade-tree-item{font:inherit;font-size:12px;text-align:left;width:100%;padding:9px 10px;border:0;border-radius:8px;background:none;color:var(--muted);cursor:pointer;display:block;line-height:1.5}
.kb-side-tree .grade-tree-item.selected,.kb-side-tree .grade-tree-item:hover{color:var(--accent);background:var(--soft)}
@media(min-width:1550px){.kb-cards{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:900px){.kb-cards{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:420px){.kb-cards{grid-template-columns:1fr}}

.kb-side-arrow{margin-left:auto;font-size:12px;display:inline-block;transition:transform .15s;padding:0 4px}
[data-page="topics"][aria-expanded="true"] .kb-side-arrow{transform:rotate(90deg)}
.kb-side-tree summary{display:flex;align-items:center;list-style:none;font-size:12px;color:var(--text);padding:9px 10px;border-radius:8px;line-height:1.5}
.kb-side-tree summary::-webkit-details-marker{display:none}
.kb-side-tree summary::after{content:'›';margin-left:auto;font-size:12px;transition:transform .15s}
.kb-side-tree details[open]>summary::after{transform:rotate(90deg)}
.kb-side-tree summary:hover{background:var(--soft);color:var(--accent)}
.kb-side-tree details>.grade-tree-item{width:calc(100% - 10px);margin-left:10px}

.kb-poster{position:relative;display:grid;grid-template-columns:1.2fr 1fr;min-height:310px;padding:38px 42px;overflow:hidden;background:linear-gradient(115deg,#eeebff 0%,#f0f1ff 48%,#e4f5fa 100%);border-color:#e2def5}
.kb-poster-copy{position:relative;z-index:2}.kb-poster-kicker{color:#7464c5;font-size:12px;letter-spacing:.08em;font-weight:600}
.kb-poster h2{font-size:clamp(28px,2.8vw,42px);line-height:1.32;letter-spacing:-.035em;margin:20px 0 16px;color:#302953}.kb-poster h2 span{color:#8064d9}
.kb-poster p{font-size:14px;line-height:1.9;color:#79758e}.kb-poster-tags{display:flex;gap:22px;margin-top:24px;color:#8a80ad;font-size:11px}.kb-poster-tags span::before{content:'•';color:#a08be7;margin-right:7px}
.kb-poster-art{position:relative;align-self:center;justify-self:center;width:320px;height:280px;isolation:isolate}
.kb-poster-art::before{content:'';position:absolute;inset:30px;border-radius:50%;background:#dcd7fb;filter:blur(32px);opacity:.6}
.kb-book-core{position:absolute;width:150px;height:150px;top:65px;left:85px;background:linear-gradient(145deg,#b3a3f4,#7d6cdc);border:1px solid #ffffffa0;box-shadow:0 25px 45px #8e7ed63a,inset 0 0 24px #ffffff60;border-radius:38px;transform:rotate(-10deg);animation:kb-bob 7s ease-in-out infinite}.kb-book-core svg{width:100%;height:100%}
.kb-orbital{position:absolute;inset:35px 0;border:1px solid #a496d43d;border-radius:50%;transform:rotate(-24deg)}.kb-orbital-b{inset:10px 45px;transform:rotate(30deg)}.kb-orbital-c{inset:55px -12px;transform:rotate(23deg)}
.kb-orbital::after{content:'';position:absolute;width:7px;height:7px;border-radius:50%;background:#a18be4;top:24%;left:5%;box-shadow:0 0 12px #ab98e9}.kb-orbital-b::after{background:#6ec6cd;top:82%;left:78%}
.kb-float-label{position:absolute;padding:9px 13px;background:#ffffffb8;border:1px solid #ffffff;border-radius:12px;box-shadow:0 8px 24px #7973af12;color:#7e70aa;font-size:12px;animation:kb-bob 7s ease-in-out infinite}.kb-float-one{top:13px;left:17px}.kb-float-two{right:-4px;top:134px;animation-delay:-2s}.kb-float-three{bottom:4px;left:34px;animation-delay:-4s}
@keyframes kb-bob{0%,100%{translate:0 0}50%{translate:0 -9px}}
@media(max-width:900px){.kb-poster{padding:28px;grid-template-columns:1.2fr 1fr}.kb-poster-art{width:260px;scale:.85;transform-origin:center}.kb-book-core{left:55px}.kb-poster h2{font-size:30px}}
@media(max-width:600px){.kb-poster{display:block;min-height:340px;padding:25px 22px}.kb-poster-copy{max-width:100%}.kb-poster h2{font-size:29px;max-width:280px}.kb-poster p{font-size:12px;max-width:260px}.kb-poster-tags{gap:14px;margin-top:50px}.kb-poster-art{position:absolute;right:-90px;bottom:-55px;scale:.65;opacity:.35;z-index:0}.kb-float-label{display:none}}
@media(prefers-reduced-motion:reduce){.kb-book-core,.kb-float-label{animation:none}}

/* Compact homepage-palette poster and consistent two-line card headings. */
.kb-poster{min-height:0;height:216px;padding:24px 32px;background:linear-gradient(116deg,#202741 0%,#242e49 48%,#283650 100%);border-color:#3c4663;align-items:center}
.kb-poster-kicker{color:#9bd4df}.kb-poster h2{font-size:28px;line-height:1.35;margin:12px 0;color:#f7f8ff;letter-spacing:-.02em}.kb-poster h2 span{color:#c4b0ff}.kb-poster-tags{margin-top:16px;color:#b0b6d0;gap:20px}
.kb-poster-art{position:absolute;width:320px;height:280px;right:9%;top:50%;margin-top:-140px;scale:.72}.kb-poster-art::before{opacity:.16}.kb-float-label{background:#35405ded;border-color:#69719665;color:#d0d7ee}.kb-orbital{border-color:#a89fe73d}
.kb-card h3{font-size:15px;line-height:1.65;height:3.3em;margin:12px 0 2px;letter-spacing:0}
.kb-card h3>span{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
@media(max-width:900px){.kb-poster{height:210px;padding:23px 26px}.kb-poster h2{font-size:26px}.kb-poster-art{right:1%;scale:.65}.kb-book-core{left:85px}.kb-card h3{font-size:14px}}
@media(max-width:600px){.kb-poster{height:208px;min-height:0;padding:22px}.kb-poster h2{font-size:25px;max-width:290px}.kb-poster-tags{margin-top:18px;gap:12px;font-size:10px}.kb-poster-art{top:50%;right:-135px;bottom:auto;scale:.58;opacity:.24}.kb-poster-copy{z-index:2}.kb-card h3{font-size:14px}}
@media(max-width:420px){.kb-card h3{font-size:15px}}

.kb-card h3{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;white-space:normal;height:3.3em;font-size:15px;line-height:1.65;margin:12px 0 14px}.kb-card-foot{margin-top:auto;padding-top:2px;line-height:1.6}.kb-card-foot>span:last-child{font-size:11px;color:var(--muted)}

@media(min-width:901px){.kb-card h3{font-size:17px}}
@media(max-width:600px){.kb-card-body>.kb-tag,.kb-card-body>h3{display:none}.kb-card-body{padding:12px 14px}.kb-card-foot{padding-top:0;margin-top:0}}

[data-page="topics"] .kb-side-arrow{padding:0;margin-left:auto;font-size:12px}
.sidebar-compact .sidebar [data-page="topics"] .kb-side-arrow{display:none!important}