.nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:22px;height:4.2rem;padding:0 1.75rem;background:transparent;-webkit-backdrop-filter:none;backdrop-filter:none;transition:background var(--dur-slow) var(--ease),box-shadow var(--dur-slow) var(--ease)}.nav.nav-solid{background:var(--topbar-bg);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);box-shadow:var(--shadow-sm)}.nav.nav-blend{color:#fff}:root[data-theme=light] .nav.nav-blend{background:#0c1219}:root[data-theme=light] .nav.nav-blend .brand-mark{filter:none}.nav.nav-blend .nav-link{color:#ffffffc7}.nav.nav-blend .nav-link:hover,.nav.nav-blend .nav-link.active{color:#fff;background:#ffffff1a}.nav.nav-blend .iconbtn,.nav.nav-blend .hamburger{background:#ffffff1f;color:#fff}.nav.nav-blend .hamburger span{background:#fff}.brand{display:flex;align-items:center;gap:11px;font-family:var(--sans);font-weight:700;font-size:18px;letter-spacing:-.3px;flex-shrink:0}.brand-mark{width:24px;height:28px;flex:0 0 24px;display:block;object-fit:contain}.nav-links{display:flex;gap:4px;margin-left:14px}.nav-link{padding:7px 12px;border-radius:var(--radius-sm);font-size:13.5px;color:var(--txt-dim);font-weight:500;transition:background var(--dur-fast) var(--ease),color var(--dur-fast) var(--ease)}.nav-link:hover{background:var(--s-chip);color:var(--t-strong)}.nav-link.active{color:var(--t-strong);background:var(--s-chip)}.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px}.iconbtn{width:36px;height:36px;border-radius:var(--radius-sm);border:1px solid transparent;background:var(--s-sub);display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--txt-dim)}.iconbtn:hover{background:var(--s-chip);color:var(--t-strong)}.hamburger{display:none;flex-direction:column;gap:5px;width:36px;height:36px;border-radius:var(--radius-sm);border:1px solid transparent;background:var(--s-sub);cursor:pointer;align-items:center;justify-content:center;padding:0}.hamburger span{display:block;width:16px;height:1.5px;background:var(--txt-dim);border-radius:2px;transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease)}.hamburger:hover{background:var(--s-chip)}.hamburger:hover span{background:var(--t-strong)}@media (max-width: 900px){.nav-links{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;gap:2px;padding:12px 16px;background:var(--topbar-bg);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);box-shadow:var(--shadow);z-index:49}.nav-links.open{display:flex}.nav-link{padding:11px 14px;font-size:15px}.hamburger{display:flex}}.site-footer{padding:4.2rem 0 3.2rem;background:var(--s-sunken)}.footer-top{display:grid;grid-template-columns:1.4fr 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no-repeat,#090d11}.hero3d-story{position:absolute;top:0;right:0;bottom:0;left:0;z-index:10;pointer-events:none;background:linear-gradient(90deg,rgba(0,0,0,.68),rgba(0,0,0,.58) 62%,transparent 94%)}.hero3d-story-wrap{height:100%;position:relative}.hero-beat{position:absolute;left:1.75rem;top:50%;width:min(37rem,calc(100vw - 5rem));color:#fff;opacity:0;transform:translate3d(0,42px,0);filter:blur(9px);transition:opacity .7s cubic-bezier(.22,.8,.22,1),transform .85s cubic-bezier(.16,1,.3,1),filter .7s ease;pointer-events:none}.hero-beat:before{content:"";position:absolute;z-index:-1;top:-5rem;right:-4rem;bottom:-5rem;left:-4rem;background:radial-gradient(ellipse at center,rgba(0,0,0,.56),rgba(0,0,0,.28) 48%,transparent 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-14px color-mix(in srgb, var(--gold) 35%, transparent);--ring-good: 0 0 0 1px color-mix(in srgb, var(--st-good) 25%, transparent), 0 0 20px -14px color-mix(in srgb, var(--st-good) 35%, transparent);--ring-warn: 0 0 0 1px color-mix(in srgb, var(--st-warn) 25%, transparent), 0 0 20px -14px color-mix(in srgb, var(--st-warn) 35%, transparent);--ring-danger: 0 0 0 1px color-mix(in srgb, var(--st-alert) 25%, transparent), 0 0 20px -14px color-mix(in srgb, var(--st-alert) 35%, transparent);--select-chevron: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238a9ab2' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");--focus-ring: 0 0 0 2px var(--panel), 0 0 0 4px var(--gold);--focus-ring-inset: inset 0 0 0 2px var(--gold);--sidebar-grad: var(--trough);--topbar-bg: rgba(234, 239, 246, .92);--main-glow: none;--card-grad: var(--card-bg);--stat-grad: var(--card-bg);--scroll-thumb: #cdd6e3;--scroll-thumb-h: #b5c0d0;--fill-subtle: rgba(12, 22, 40, .04);--glow: rgba(12, 22, 40, .03);--surface-0: var(--ink);--surface-1: var(--panel);--surface-2: var(--card-bg);--surface-3: var(--panel-2);--interactive-bg: var(--s-sub);--interactive-hover: var(--s-chip);--interactive-active: var(--s-chip-2);--border-subtle: var(--line-soft);--border-default: var(--line);--border-strong: var(--line-2);--border-focus: var(--gold)}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}}:root[data-theme=light]{--mut-2: var(--mut)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:117.5%}body{font-family:var(--sans);background:var(--ink);color:var(--txt);-webkit-font-smoothing:antialiased;line-height:1.55;overflow-x:hidden}@media (max-width: 900px){html{font-size:106%}}::selection{background:var(--t-strong);color:var(--ink)}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--ink)}::-webkit-scrollbar-thumb{background:var(--scroll-thumb);border-radius:6px;border:2px solid var(--ink)}a{color:inherit;text-decoration:none}p a:not(.btn){text-decoration:underline;text-underline-offset:.2em;text-decoration-thickness:1px}:focus-visible{outline:2px solid var(--gold);outline-offset:2px}:focus:not(:focus-visible){outline:none}.wrap{max-width:72rem;margin:0 auto;padding:0 1.75rem}section{position:relative}.kicker{font-family:var(--sans);font-size:.6875rem;font-variant-numeric:tabular-nums;letter-spacing:2.4px;text-transform:uppercase;color:var(--mut);font-weight:500}h1,h2{font-family:var(--disp);font-weight:500;letter-spacing:-.4px;line-height:1.08}h1{font-size:clamp(2.2rem,6vw,4rem)}h2{font-size:clamp(1.7rem,3.6vw,2.6rem);letter-spacing:-.6px}h3{font-family:var(--sans);font-weight:600;font-size:1.15rem;letter-spacing:-.2px;line-height:1.2}p{color:var(--txt-dim)}.lead{font-size:clamp(1.05rem,1.6vw,1.3rem);color:var(--txt-dim);line-height:1.55;max-width:42rem}.mono{font-family:var(--sans);font-variant-numeric:tabular-nums}.muted{color:var(--mut)}.btn{font-family:var(--sans);font-size:14px;font-weight:600;padding:11px 18px;border-radius:var(--radius-sm);cursor:pointer;border:1px solid transparent;background:var(--s-sub);color:var(--txt-dim);display:inline-flex;align-items:center;gap:9px;transition:background var(--dur) var(--ease),color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);white-space:nowrap}.btn:hover{background:var(--s-chip);color:var(--t-strong);box-shadow:var(--edge-highlight)}.btn.solid{background:var(--gold);color:var(--on-accent);font-weight:700}.btn.solid:hover{background:var(--gold-hi);color:var(--on-accent)}.btn.sm{padding:8px 13px;font-size:13px}.tag{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:600;padding:3px 9px;border-radius:var(--radius-full);background:var(--s-chip);color:var(--txt-dim)}.tag.mono{font-family:var(--sans);font-variant-numeric:tabular-nums;letter-spacing:.3px;font-weight:500;font-size:10.5px}.dot{width:6px;height:6px;border-radius:50%;background:var(--mut);display:inline-block}.sec{padding:5.5rem 0}.sec-head{max-width:42.5rem;margin-bottom:2.4rem}.sec-head .kicker{margin-bottom:14px;display:block}.sec-head p{margin-top:14px;font-size:1rem}.grid{display:grid;gap:16px}.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}.card{background:var(--card-grad);border-radius:var(--radius-md);padding:22px;box-shadow:var(--edge-highlight),var(--shadow-sm);transition:background var(--dur) var(--ease),box-shadow var(--dur) var(--ease),transform var(--dur) var(--ease)}.card:hover{background:var(--card-hover-bg)}.card h3{margin-bottom:9px}.card p{font-size:13.5px;line-height:1.55}.card .num{font-family:var(--sans);font-variant-numeric:tabular-nums;font-size:12px;color:var(--mut);margin-bottom:14px;display:block}.pivot{display:grid;grid-template-columns:1fr 56px 1fr;gap:0;align-items:stretch}.pivot .col{padding:26px;border-radius:var(--radius-md);background:var(--s-sub);box-shadow:var(--edge-highlight),var(--shadow-sm)}.pivot .col.after{background:var(--card-grad);box-shadow:var(--edge-highlight),var(--shadow)}.pivot .arrow{display:flex;align-items:center;justify-content:center;color:var(--mut)}.pivot .role{font-family:var(--sans);font-variant-numeric:tabular-nums;font-size:11px;letter-spacing:1.2px;text-transform:uppercase;color:var(--mut-2);margin-bottom:10px}.pivot h3{font-size:21px;margin-bottom:6px}.pivot .where{font-size:12.5px;color:var(--mut);margin-bottom:16px}.pivot ul{list-style:none;display:flex;flex-direction:column;gap:9px}.pivot li{display:flex;gap:10px;font-size:13.5px;color:var(--txt-dim);line-height:1.45}.pivot li svg{flex:0 0 15px;margin-top:3px;color:var(--t-4)}.modules{display:flex;flex-direction:column;border-radius:var(--radius-md);overflow:hidden;background:var(--card-bg);box-shadow:var(--edge-highlight),var(--shadow-sm)}.mod{display:grid;grid-template-columns:150px 1fr;gap:18px;padding:18px 22px;align-items:start}.mod:hover{background:var(--s-sub)}.mod .ph{display:flex;flex-direction:column;gap:6px}.mod .pillar{font-family:var(--sans);font-weight:700;font-size:17px}.mod .rmf{font-family:var(--sans);font-variant-numeric:tabular-nums;font-size:10px;color:var(--mut-2);letter-spacing:.5px}.mod .desc{font-size:13.5px;color:var(--txt-dim);line-height:1.5}.flow{display:flex;flex-direction:column;gap:0}.step{display:grid;grid-template-columns:42px 1fr;gap:18px;position:relative;padding-bottom:26px}.step:last-child{padding-bottom:0}.step .rail{display:flex;flex-direction:column;align-items:center}.step .pin{width:42px;height:42px;border-radius:var(--radius-sm);background:var(--s-chip-2);display:flex;align-items:center;justify-content:center;font-family:var(--sans);font-weight:700;font-size:14px;flex:0 0 42px}.step .line{flex:1;width:1px;background:var(--line);margin:6px 0}.step:last-child .line{display:none}.step .body{padding-top:6px}.step .step-pillar{font-family:var(--sans);font-variant-numeric:tabular-nums;font-size:10.5px;letter-spacing:1.4px;text-transform:uppercase;color:var(--mut-2);margin-bottom:4px}.step h3{font-size:17px;margin-bottom:7px}.step p{font-size:13.5px;line-height:1.55}.node{margin-top:11px;display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11px;padding:6px 11px;border-radius:var(--radius-xs);background:#f4f3ef;color:#1a1c20;box-shadow:var(--shadow-sm)}.node .lbl{color:var(--doc-text-3)}.principle{display:grid;grid-template-columns:40px 1fr;gap:16px;padding:18px 0}.principle .n{font-family:var(--sans);font-weight:800;font-size:22px;color:var(--mut-2)}.principle h3{font-size:16px;margin-bottom:5px}.principle p{font-size:13.5px}.callout{border-radius:var(--radius-lg);padding:30px;background:var(--stat-grad);box-shadow:var(--edge-highlight),var(--shadow);display:flex;flex-direction:column;gap:14px}.callout .q{font-family:var(--sans);font-weight:600;font-size:clamp(19px,2.4vw,28px);letter-spacing:-.4px;line-height:1.25}.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:42px}.fact{border-radius:var(--radius-md);padding:16px 18px;background:var(--s-sub);box-shadow:var(--edge-highlight),var(--shadow-sm)}.fact .k{font-family:var(--sans);font-variant-numeric:tabular-nums;font-size:10px;letter-spacing:1.2px;text-transform:uppercase;color:var(--mut-2);margin-bottom:7px}.fact .v{font-size:15px;font-weight:600;color:var(--txt)}.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s var(--ease),transform .6s var(--ease)}.reveal.in{opacity:1;transform:none}@media (max-width: 900px){.g4,.g3,.facts{grid-template-columns:repeat(2,1fr)}.pivot{grid-template-columns:1fr;gap:14px}.pivot .arrow{transform:rotate(90deg);height:30px}}@media (max-width: 600px){.g4,.g3,.g2{grid-template-columns:1fr}.mod{grid-template-columns:1fr;gap:8px}.facts{grid-template-columns:1fr 1fr}}@media (prefers-reduced-motion: reduce){.reveal{transition:none;opacity:1;transform:none}}