.st-subnav{background:#fff;border-bottom:1px solid #e4e1d8;overflow-x:auto;scrollbar-width:none}.st-subnav::-webkit-scrollbar{display:none}.st-subnav-inner{display:flex;align-items:center;gap:2px;max-width:1100px;margin:0 auto;padding:0 20px}.st-subnav-link{display:inline-block;font-size:13px;font-weight:500;color:#5b6675;text-decoration:none;padding:10px 14px;border-bottom:2px solid transparent;white-space:nowrap;transition:color .12s,border-color .12s}.st-subnav-link:hover{color:#071321}.st-subnav-link.active{color:#071321;border-bottom-color:#a78b55;font-weight:600}.st-page{max-width:1100px;margin:0 auto;padding:36px 20px 72px}.st-hero{text-align:center;max-width:680px;margin:0 auto 44px}.st-eyebrow{font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#a78b55;margin:0 0 10px}.st-hero h1{font-size:34px;font-weight:800;color:#071321;margin:0 0 12px;letter-spacing:-.3px;line-height:1.2}.st-hero p{font-size:16px;margin:0 0 10px}.st-hero p,.st-lede{color:#5b6675;line-height:1.65}.st-lede{font-size:15px;max-width:700px;margin:0 auto 32px;text-align:center}.st-lede em{color:#806338;font-style:normal;font-weight:600}.st-wings{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:20px;gap:20px;margin-bottom:48px}@media (max-width:800px){.st-wings{grid-template-columns:1fr}}.st-wing-card{position:relative;background:#fff;border:1px solid #e4e1d8;border-radius:16px;overflow:hidden;text-decoration:none;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s,border-color .2s}.st-wing-card:hover{transform:translateY(-4px);box-shadow:0 16px 40px rgba(11,32,56,.12);border-color:var(--st-accent,#a78b55)}.st-wing-card:before{content:"";display:block;height:3px;background:var(--st-accent,#a78b55)}.st-wing-card--foundations{--st-accent:#7B9EC4}.st-wing-card--interpret{--st-accent:#A78B55}.st-wing-card--method{--st-accent:#5FB98A}.st-wing-card--soon{opacity:.65;pointer-events:none}.st-wing-icon{display:grid;place-items:center;height:132px;background:color-mix(in srgb,var(--st-accent,#a78b55) 12%,#fff);border-bottom:1px solid #ece6da}.st-wing-icon-disc{width:72px;height:72px;border-radius:18px;background:#fff;border:1px solid var(--st-accent,#e4e1d8);display:grid;place-items:center;font-size:34px;line-height:1;box-shadow:inset 0 1px 0 rgba(255,255,255,.8),0 4px 12px rgba(11,32,56,.08);transition:transform .2s,box-shadow .2s}.st-wing-card:hover .st-wing-icon-disc{transform:translateY(-3px);box-shadow:0 8px 20px rgba(11,32,56,.14)}.st-wing-body{padding:20px 22px 0;flex:1 1}.st-wing-kicker{font-size:10.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--st-accent,#a78b55);margin:0 0 6px}.st-wing-name{font-size:20px;font-weight:800;color:#071321;margin:0 0 10px}.st-wing-desc{font-size:13.5px;color:#5b6675;line-height:1.6;margin:0}.st-wing-meta{font-size:12px;color:#9aabb0;margin:10px 0 0}.st-wing-foot{padding:16px 22px 20px;margin-top:14px;border-top:1px solid #f0ece4;font-size:12.5px;font-weight:700;color:var(--st-accent,#806338)}.st-section-title{font-size:13px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#a78b55;margin:0 0 18px;padding-bottom:10px;border-bottom:1px solid #e4e1d8}.st-region-hero{margin-bottom:28px}.st-region-hero .st-back{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:#5b6675;text-decoration:none;margin-bottom:16px;text-transform:uppercase;letter-spacing:.06em}.st-region-hero .st-back:hover{color:#071321}.st-region-kicker{font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--st-wing-accent,#a78b55);margin:0 0 6px}.st-region-hero h1{font-size:30px;font-weight:800;color:#071321;margin:0 0 12px}.st-region-intro{font-size:14.5px;color:#5b6675;line-height:1.65;margin:0 0 8px}.st-region-ask{font-size:14px;color:#5b6675;line-height:1.6;padding:12px 16px;background:#f8f5ef;border-left:3px solid var(--st-wing-accent,#a78b55);border-radius:0 8px 8px 0;margin:0}.st-region-ask b{color:#071321}.st-tabs{display:flex;gap:8px;margin-bottom:24px;border-bottom:1px solid #e4e1d8}.st-tab{padding:10px 18px;font-size:13.5px;font-weight:600;color:#5b6675;background:none;border:none;border-bottom:2px solid transparent;cursor:pointer;margin-bottom:-1px;font-family:inherit;transition:color .12s,border-color .12s}.st-tab:hover{color:#071321}.st-tab.active{color:#071321;border-bottom-color:#a78b55}.st-node-map{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));grid-gap:18px;gap:18px;padding:28px;background:#f8f5ef;border:1px solid #e4e1d8;border-radius:14px}@media (max-width:500px){.st-node-map{grid-template-columns:1fr 1fr}}.st-node{display:flex;flex-direction:column;align-items:center;text-align:center;cursor:pointer;background:none;border:none;font-family:inherit;padding:0;gap:10px}.st-node-disc{width:72px;height:72px;border-radius:18px;background:linear-gradient(145deg,#fff,#ede7d8);border:1px solid #e4e1d8;display:grid;place-items:center;box-shadow:inset 0 1px 0 rgba(255,255,255,.8),0 4px 12px rgba(11,32,56,.08);transition:transform .2s,box-shadow .2s,border-color .2s}.st-node:hover .st-node-disc{transform:translateY(-3px);border-color:#a78b55;box-shadow:0 0 22px rgba(167,139,85,.35)}.st-node-num{position:absolute;top:-9px;left:50%;transform:translateX(-50%);width:22px;height:22px;border-radius:50%;background:#a78b55;color:#071321;font-size:11px;font-weight:800;display:grid;place-items:center}.st-node-wrap{position:relative}.st-node-title{font-size:12.5px;font-weight:600;color:#071321;line-height:1.25}.st-node-tag{font-size:10px;letter-spacing:.06em;text-transform:uppercase;color:#a78b55;margin-top:2px;display:block}.st-scrim{position:fixed;inset:0;background:rgba(5,13,25,.6);z-index:200;display:flex;align-items:center;justify-content:center;padding:20px;animation:st-fade-in .2s ease}@keyframes st-fade-in{0%{opacity:0}to{opacity:1}}.st-drawer{background:#fff;border-radius:18px;width:min(820px,100%);max-height:90vh;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 32px 80px rgba(5,13,25,.4);animation:st-slide-up .25s cubic-bezier(.16,1,.3,1)}@keyframes st-slide-up{0%{opacity:0;transform:translateY(16px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}.st-drawer-head{padding:22px 28px 16px;border-bottom:1px solid #e4e1d8;position:relative;flex:0 0 auto}.st-drawer-tag{font-size:10.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#a78b55;margin:0 0 6px}.st-drawer-head h2{font-size:24px;font-weight:800;color:#071321;margin:0;padding-right:40px}.st-drawer-close{position:absolute;top:18px;right:20px;width:34px;height:34px;border-radius:50%;border:1px solid #e4e1d8;background:none;color:#5b6675;font-size:18px;cursor:pointer;display:grid;place-items:center;transition:color .12s,border-color .12s}.st-drawer-close:hover{color:#071321;border-color:#a78b55}.st-drawer-body{padding:24px 28px 32px;overflow-y:auto;overscroll-behavior:contain;flex:1 1 auto}@media (max-width:600px){.st-drawer-head{padding:18px 18px 14px}.st-drawer-body{padding:18px 18px 28px}}.st-hook{font-style:italic;color:#806338;background:#faf5e8;border-left:3px solid #a78b55;border-radius:0 8px 8px 0;padding:10px 14px}.st-hook,.st-station{font-size:14.5px;margin:0 0 18px}.st-station{color:#071321;line-height:1.65}.st-block{border-radius:10px;padding:12px 14px;margin-bottom:10px;font-size:13.5px;line-height:1.6}.st-block-label{font-size:10px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;margin-bottom:5px}.st-block--rule{background:#faf5e8;border:1px solid #e4dcc8}.st-block--rule .st-block-label,.st-block--rule b{color:#806338}.st-block--concept{background:#f6f7fa;border:1px solid #e4e1d8}.st-block--concept h5{margin:0 0 4px;font-size:13px;font-weight:700;color:#1f3a5e}.st-block--concept p{margin:0;color:#071321}.st-block--trap{background:#fdf2f1;border:1px solid #f0c0bc}.st-block--trap .st-block-label{color:#c0392b}.st-block--trap .st-block-content{color:#5a1a16}.st-concepts-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:10px;gap:10px;margin-bottom:10px}@media (max-width:560px){.st-concepts-grid{grid-template-columns:1fr}}.st-cases-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}.st-case-chip{font-size:12px;padding:5px 12px;border-radius:8px;border:1px solid #b8c8d8;background:rgba(136,164,194,.1);color:#1f3a5e;cursor:pointer;font-family:inherit;transition:border-color .12s,background .12s}.st-case-chip:hover{border-color:#1f3a5e;background:rgba(136,164,194,.2)}.st-links-row{display:flex;flex-wrap:wrap;gap:8px}.st-link-chip{font-size:12px;padding:5px 12px;border-radius:20px;border:1px solid #e4e1d8;background:#f6f7fa;color:#5b6675;cursor:pointer;font-family:inherit;transition:border-color .12s,color .12s}.st-link-chip:hover{border-color:#a78b55;color:#071321}.st-case-panel{background:#fff;border-radius:18px;width:min(660px,100%);max-height:88vh;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 32px 80px rgba(5,13,25,.4);animation:st-slide-up .25s cubic-bezier(.16,1,.3,1)}.st-case-panel-head{padding:20px 24px 14px;border-bottom:1px solid #e4e1d8;position:relative}.st-case-key-tag{display:inline-block;font-size:9.5px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;background:#a78b55;color:#071321;border-radius:20px;padding:3px 10px;margin-bottom:8px}.st-case-cite{font-size:12px;color:#a78b55;letter-spacing:.02em;margin:0 0 4px}.st-case-panel-head h3{font-size:18px;font-weight:800;color:#071321;margin:0;padding-right:38px;line-height:1.3}.st-case-panel-body{padding:18px 24px 28px;overflow-y:auto;overscroll-behavior:contain;flex:1 1 auto}.st-case-sec{margin-bottom:14px}.st-case-sec h5{font-size:10px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:#a78b55;margin:0 0 4px}.st-case-sec p{margin:0;font-size:13.5px;line-height:1.6;color:#071321}.st-case-sec.hook p{color:#806338;font-style:italic}.st-case-sec.exam{background:#fdf2f1;border:1px solid #f0c0bc;border-radius:10px;padding:12px 14px}.st-case-sec.exam h5{color:#c0392b}.st-case-focus{margin-top:6px;font-size:12.5px;color:#1f3a5e;font-style:italic}.st-case-group{margin-bottom:32px}.st-case-group-head{display:flex;align-items:center;gap:10px;font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#a78b55;margin:0 0 14px;padding-bottom:8px;border-bottom:1px solid #e4e1d8}.st-case-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));grid-gap:14px;gap:14px}.st-case-card{background:#fff;border:1px solid #e4e1d8;border-radius:14px;padding:16px;cursor:pointer;text-align:left;font-family:inherit;transition:border-color .15s,transform .15s;width:100%}.st-case-card:hover{border-color:#a78b55;transform:translateY(-2px)}.st-case-card-key{font-size:9.5px;font-weight:800;letter-spacing:.1em;color:#071321;background:#a78b55;border-radius:20px;padding:2px 9px;margin-bottom:8px;display:inline-block}.st-case-card-cite{font-size:11.5px;color:#a78b55;margin:0 0 4px}.st-case-card-name{font-size:14px;font-weight:700;color:#071321;margin:0 0 8px;line-height:1.3}.st-case-card-hook{font-size:12.5px;color:#5b6675;font-style:italic;margin:0;line-height:1.45}.st-fc-hint{font-size:12.5px;color:#5b6675;text-align:center;margin:0 0 16px}.st-fc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));grid-gap:14px;gap:14px}.st-fc{perspective:1200px;cursor:pointer;min-height:150px}.st-fc-inner{position:relative;width:100%;height:100%;min-height:150px;transition:transform .45s;transform-style:preserve-3d;display:grid}.st-fc.flipped .st-fc-inner{transform:rotateY(180deg)}.st-fc-face{grid-area:1/1;min-height:150px;border-radius:14px;border:1px solid #e4e1d8;padding:18px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;backface-visibility:hidden;-webkit-backface-visibility:hidden}.st-fc-front{background:linear-gradient(160deg,#1B2F4A,#0E1B2E);border-color:rgba(167,139,85,.35)}.st-fc-back{background:#fff;border-color:#e4e1d8;transform:rotateY(180deg);align-items:flex-start;text-align:left}.st-fc-q{font-size:14px;font-weight:600;color:#EAD9A8;line-height:1.5}.st-fc-a{font-size:13px;color:#071321;line-height:1.55;width:100%}.st-fc-a b{color:#806338}.st-hub-tools{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}.st-hub-tool-btn{padding:9px 16px;border-radius:999px;border:1px solid #e4e1d8;background:#fff;color:#5b6675;font-size:13px;font-weight:500;cursor:pointer;font-family:inherit;transition:all .12s}.st-hub-tool-btn:hover{border-color:#a78b55;color:#071321}.st-hub-tool-btn.active{background:linear-gradient(180deg,#a78b55,#806338);color:#071321;border-color:transparent;font-weight:700}.st-cwall{border:1px solid #e4e1d8;border-radius:12px;overflow:hidden;margin-bottom:14px}.st-cwall-title{padding:10px 14px;background:#f8f5ef;font-size:13px;font-weight:700;color:#071321;border-bottom:1px solid #e4e1d8}.st-cwall-cols{display:grid;grid-template-columns:1fr 1fr}@media (max-width:540px){.st-cwall-cols{grid-template-columns:1fr}}.st-cwall-col{padding:12px 14px;font-size:13px;line-height:1.55;color:#071321}.st-cwall-col:first-child{border-right:1px solid #e4e1d8}@media (max-width:540px){.st-cwall-col:first-child{border-right:none;border-bottom:1px solid #e4e1d8}}.st-cwall-col b{display:block;font-size:12px;font-weight:700;color:#1f3a5e;margin-bottom:4px}.st-cwall-key{padding:9px 14px;font-size:12.5px;color:#071321;background:#f6f7fa;border-top:1px solid #e4e1d8}.st-cwall-key b{color:#806338}.st-acc{border:1px solid #e4e1d8;border-radius:12px;margin-bottom:10px;overflow:hidden}.st-acc-head{display:flex;align-items:flex-start;gap:12px;padding:13px 16px;cursor:pointer;background:#fff;font-size:13.5px;font-weight:600;color:#071321;transition:background .12s;border:none;width:100%;font-family:inherit;text-align:left}.st-acc-head:hover{background:#f8f5ef}.st-acc-num{flex:none;width:22px;height:22px;border-radius:50%;background:#a78b55;color:#071321;font-size:11px;font-weight:800;display:grid;place-items:center}.st-acc-x{margin-left:auto;color:#a78b55;font-size:18px;font-weight:700;line-height:1}.st-acc-body{padding:0 16px 16px 50px;font-size:13.5px;line-height:1.65;color:#071321}.st-conf-body{border-top:1px solid #e4e1d8}.st-alpha{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:18px}.st-alpha-btn{min-width:28px;height:28px;padding:0 6px;border:1px solid #e4e1d8;border-radius:6px;background:#fff;color:#5b6675;font-size:12.5px;font-weight:600;font-family:inherit;cursor:pointer;transition:background .12s,color .12s,border-color .12s}.st-alpha-btn:hover:not(:disabled){border-color:#a78b55;color:#071321}.st-alpha-btn.active{background:#a78b55;border-color:#a78b55;color:#fff}.st-alpha-btn:disabled{opacity:.35;cursor:default}.st-acc-body b{color:#806338}.st-acc-body ol{margin:8px 0;padding-left:18px}.st-acc-body li{margin-bottom:6px}.st-lex-search-wrap{margin-bottom:16px}.st-lex-search{width:100%;max-width:480px;padding:10px 14px;font-size:15px;font-family:inherit;border:1px solid #d4cfc6;border-radius:8px;background:#faf9f6;color:#071321;outline:none;transition:border-color .15s,box-shadow .15s}.st-lex-search:focus{border-color:#7B9EC4;box-shadow:0 0 0 3px rgba(123,158,196,.15)}.st-lex-empty{color:#6b7a8d;font-style:italic;font-size:15px}.st-lex-list{margin:0;padding:0;display:flex;flex-direction:column;gap:0}.st-lex-item{padding:18px 0;border-bottom:1px solid #ede9e0}.st-lex-item:last-child{border-bottom:none}.st-lex-term{font-size:15px;font-weight:700;color:#4E77A1;margin:0 0 6px}.st-lex-def{font-size:14.5px;line-height:1.7;color:#3a4352;margin:0}.st-lex-def b{color:#071321}.st-lex-def i{font-style:italic}.st-theme-layout{display:grid;grid-template-columns:minmax(0,1fr) 220px;grid-gap:48px;gap:48px;align-items:start}.st-theme-content{grid-column:1;min-width:0}.st-toc{grid-column:2;grid-row:1;position:-webkit-sticky;position:sticky;top:16px;align-self:start}@media (max-width:960px){.st-theme-layout{grid-template-columns:1fr;gap:0}.st-toc{display:none}}.st-toc-label{font-size:10.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#9aabb0;margin:0 0 10px;padding-left:13px}.st-toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:1px;border-left:1px solid #e4e1d8}.st-toc-list li a{display:block;font-size:12.5px;color:#5b6675;text-decoration:none;padding:6px 12px;border-left:2px solid transparent;margin-left:-1px;line-height:1.35;transition:color .12s,border-color .12s}.st-toc-list li a:hover{color:#071321;border-left-color:var(--st-wing-accent,#a78b55)}.st-node-section{padding:28px 0;border-top:1px solid #ece8e0;scroll-margin-top:16px}.st-node-section:first-child{border-top:none;padding-top:6px}.st-node-section-head{display:flex;gap:14px;align-items:flex-start;margin-bottom:16px}.st-node-section-num{flex:none;width:32px;height:32px;border-radius:9px;background:color-mix(in srgb,var(--st-wing-accent,#a78b55) 12%,#f6f3ec);color:var(--st-wing-accent,#a78b55);font-size:14px;font-weight:800;display:grid;place-items:center;border:1px solid color-mix(in srgb,var(--st-wing-accent,#a78b55) 22%,#e4e1d8)}.st-node-section-tag{font-size:10.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--st-wing-accent,#a78b55);margin:3px 0}.st-node-section-title{font-size:21px;font-weight:800;color:#071321;margin:0 0 7px;line-height:1.25}.st-node-section-body{padding-left:46px;max-width:860px}.st-node-section-body>:last-child{margin-bottom:0}@media (max-width:560px){.st-node-section-body{padding-left:0}}.st-cases-list{display:flex;flex-direction:column;gap:10px}.st-case-inline{border:1px solid #e4e1d8;border-radius:10px;background:#fff;overflow:hidden}.st-case-inline>summary{list-style:none;cursor:pointer;padding:12px 14px;display:flex;gap:12px;align-items:flex-start;justify-content:space-between}.st-case-inline>summary::-webkit-details-marker{display:none}.st-case-inline>summary:hover{background:color-mix(in srgb,var(--st-wing-accent,#a78b55) 4%,#fff)}.st-case-inline[open]{border-color:color-mix(in srgb,var(--st-wing-accent,#a78b55) 30%,#e4e1d8)}.st-case-summary-text{display:flex;flex-direction:column;gap:3px;min-width:0}.st-case-link-name{font-size:14px;font-weight:700;color:#071321;line-height:1.3}.st-case-inline .st-case-cite{font-size:11.5px;font-weight:400;letter-spacing:normal;text-transform:none;color:#9aabb0;margin:0}.st-case-principle{font-size:12.5px;color:#5b6675;line-height:1.45}.st-case-chevron{flex:none;color:#9aabb0;margin-top:2px;transition:transform .15s}.st-case-inline[open] .st-case-chevron{transform:rotate(180deg)}.st-case-inline-body{padding:2px 14px 14px;border-top:1px solid #f0ece4}.st-case-inline-body p{font-size:13px;color:#2d3a47;line-height:1.55;margin:10px 0 0}.st-case-inline-body p strong{color:#071321}.st-case-inline-body .st-case-hook{color:#806338;font-style:italic}.st-case-inline-body .st-case-hook strong{color:#806338}.st-case-tip{color:#5a4a2a}.st-case-inline--flat{border:1px solid #e4e1d8;border-radius:10px;padding:10px 14px;background:#fff;display:flex;flex-direction:column;gap:3px}