:root{--em-node-bg: rgba(143, 155, 107, .1);--em-node-border: rgba(143, 155, 107, .32);--em-node-op: rgba(183, 166, 106, .14);--em-node-op-b: rgba(183, 166, 106, .38);--em-line: rgba(143, 155, 107, .38);--em-code-bg: rgba(22, 28, 15, .06);--em-code-border: rgba(143, 155, 107, .18)}.dark{--em-node-bg: rgba(168, 181, 138, .09);--em-node-border: rgba(168, 181, 138, .25);--em-node-op: rgba(201, 176, 112, .13);--em-node-op-b: rgba(201, 176, 112, .35);--em-line: rgba(168, 181, 138, .3);--em-code-bg: rgba(168, 181, 138, .06);--em-code-border: rgba(168, 181, 138, .16)}.expr-math-page{min-height:100vh}.em-hero-deco{flex-shrink:0;display:flex;flex-direction:column;align-items:center;gap:10px;animation:pjFadeUp .7s var(--pj-ease) .12s both}.em-hero-deco-label{font-size:10px;font-weight:800;letter-spacing:2px;text-transform:uppercase;color:var(--pj-muted)}.em-tree-block{background:var(--em-code-bg);border:1px solid var(--em-code-border);border-radius:16px;padding:18px 22px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);width:clamp(220px,26vw,320px)}.em-tree-block pre{margin:0;font-family:JetBrains Mono,Fira Code,Courier New,monospace;font-size:clamp(9px,1.1vw,11.5px);line-height:1.55;color:var(--pj-sub);white-space:pre;overflow:hidden}.em-tree-block .t-op{color:var(--pj-olive);font-weight:700}.em-tree-block .t-fn{color:var(--pj-gold);font-weight:700}.em-tree-block .t-val{color:var(--pj-text);opacity:.7}.em-tree-block .t-var{color:var(--pj-olive-d);font-style:italic}.em-tree-block .t-line{opacity:.35}.em-hierarchy{display:flex;flex-direction:column;gap:8px;padding:20px;background:var(--pj-card);border:1px solid var(--pj-border);border-radius:18px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.em-node{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:10px;font-size:13px;font-weight:600;color:var(--pj-text);background:var(--em-node-bg);border:1px solid var(--em-node-border);transition:all .28s var(--pj-spring);font-family:JetBrains Mono,Fira Code,monospace;cursor:default}.em-node:hover{border-color:var(--pj-border-h);transform:translate(4px);box-shadow:0 4px 14px var(--pj-shadow)}.em-node-op{background:var(--em-node-op);border-color:var(--em-node-op-b);color:var(--pj-gold)}.em-node-child{margin-left:20px}.em-node-child2{margin-left:40px}.em-node-badge{margin-left:auto;font-size:10px;font-weight:800;letter-spacing:1px;text-transform:uppercase;padding:3px 9px;border-radius:99px;color:var(--pj-olive);background:#8f9b6b1f;border:1px solid rgba(143,155,107,.22)}.em-node-badge-op{color:var(--pj-gold);background:#b7a66a1f;border-color:#b7a66a42}.em-connector{display:flex;align-items:stretch;gap:0;padding-left:24px}.em-connector-line{width:2px;min-height:20px;background:linear-gradient(180deg,var(--em-line),transparent);margin-right:14px;border-radius:2px;flex-shrink:0}.em-examples-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(260px,100%),1fr));gap:14px}.em-example-card{display:flex;flex-direction:column;gap:10px;padding:18px 20px;background:var(--pj-card);border:1px solid var(--pj-border);border-radius:16px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);transition:all .32s var(--pj-spring)}.em-example-card:hover{border-color:var(--pj-border-h);transform:translateY(-4px);box-shadow:0 12px 32px var(--pj-shadow)}.em-ex-label{font-size:10px;font-weight:800;letter-spacing:1.5px;text-transform:uppercase;color:var(--pj-olive)}.em-ex-formula{font-family:JetBrains Mono,Fira Code,monospace;font-size:clamp(.78rem,1.6vw,.92rem);color:var(--pj-text);background:var(--em-code-bg);border:1px solid var(--em-code-border);border-radius:8px;padding:8px 12px;line-height:1.5;overflow-x:auto}.em-ex-desc{font-size:12px;color:var(--pj-muted);line-height:1.6;margin:0}.em-features{display:flex;flex-direction:column;gap:10px}.em-feature-item{display:flex;align-items:flex-start;gap:14px;padding:16px 20px;background:var(--pj-card);border:1px solid var(--pj-border);border-radius:14px;transition:border-color .26s ease,transform .28s var(--pj-spring)}.em-feature-item:hover{border-color:var(--pj-border-h);transform:translate(4px)}.em-feature-icon{width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#8f9b6b24,#b7a66a1a);border:1px solid var(--pj-border);color:var(--pj-olive);flex-shrink:0;font-size:1.1rem;transition:transform .3s var(--pj-spring)}.em-feature-item:hover .em-feature-icon{background:linear-gradient(135deg,var(--pj-olive),var(--pj-gold));color:#fff;border-color:transparent;transform:scale(1.08) rotate(-4deg)}.em-feature-icon svg{width:20px;height:20px}.em-feature-body strong{display:block;font-size:14px;font-weight:800;color:var(--pj-text);margin-bottom:4px}.em-feature-body p{margin:0;font-size:13px;color:var(--pj-sub);line-height:1.6}.em-code-snippet{position:relative;background:var(--em-code-bg);border:1px solid var(--em-code-border);border-radius:14px;overflow:hidden}.em-code-header{display:flex;align-items:center;gap:8px;padding:10px 16px;border-bottom:1px solid var(--em-code-border)}.em-code-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}.em-code-dot:nth-child(1){background:#ff5f57}.em-code-dot:nth-child(2){background:#ffbd2e}.em-code-dot:nth-child(3){background:#28c840}.em-code-filename{font-size:11px;font-weight:700;color:var(--pj-muted);font-family:JetBrains Mono,monospace;margin-left:4px}.em-code-snippet pre{margin:0;padding:16px 20px;font-family:JetBrains Mono,Fira Code,Courier New,monospace;font-size:13px;line-height:1.65;color:var(--pj-sub);overflow-x:auto}.em-code-snippet .kw{color:var(--pj-olive);font-weight:700}.em-code-snippet .tp{color:var(--pj-gold)}.em-code-snippet .cm{color:var(--pj-muted);font-style:italic;opacity:.75}.em-code-snippet .st{color:#c07b54}.em-code-snippet .nm{color:var(--pj-text);opacity:.85}.em-roadmap{display:flex;flex-direction:column;gap:8px}.em-roadmap-item{display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:10px;font-size:13.5px;color:var(--pj-sub);border:1px solid transparent;transition:all .26s ease}.em-roadmap-item:hover{background:var(--pj-card);border-color:var(--pj-border)}.em-roadmap-check{width:20px;height:20px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:11px;flex-shrink:0}.em-roadmap-check-done{background:#22c55e24;border:1px solid rgba(34,197,94,.32);color:#22c55e}.em-roadmap-check-soon{background:var(--em-node-bg);border:1px solid var(--em-node-border);color:var(--pj-muted)}@media(max-width:900px){.em-hero-deco{display:none}}@media(max-width:640px){.em-examples-grid{grid-template-columns:1fr}}