.mk-root.nb{--mk-page:1120px}.nb{--nb-navy:#102a49;--nb-navy-ink:#17395f;--nb-navy-deep:#0a1d33;--nb-navy-light:#4d84c0;--nb-blue:#2c5d97;--nb-blue-press:#234d7f;--nb-ground:#f7fafc;--nb-blueback:#eef4fa;--nb-blueback-deep:#dfeaf5;--nb-line:#cddcea;--nb-line-soft:#e6edf5;--nb-ink:#101418;--nb-slate:#4a5561;--nb-faint:#626c78;--nb-on-navy-2:#c6d5e8;--nb-on-navy-3:#9db4d0;--nb-navy-rule:rgba(198,213,232,.16);--nb-correct:#1e7a4a;--nb-correct-soft:#e7f3ec;--nb-incorrect:#b23a32;--nb-incorrect-soft:#f9eae8;--nb-selected:#9c7a00;--nb-selected-soft:#fdf5cc;--nb-ui:var(--font-sans),ui-sans-serif,system-ui,sans-serif;--nb-read:var(--font-body),Georgia,serif;--nb-ease:cubic-bezier(.16,1,.3,1);--nb-shadow-1:0 1px 2px rgba(16,42,73,.06),0 4px 12px rgba(16,42,73,.06);--nb-shadow-win:0 2px 6px rgba(6,18,33,.14),0 30px 70px -18px rgba(6,18,33,.5)}.nb-btn{min-height:48px;font:700 1rem/1 var(--nb-ui);cursor:pointer;transition:background-color .18s var(--nb-ease),border-color .18s var(--nb-ease),color .18s var(--nb-ease),transform .18s var(--nb-ease);border:1.5px solid transparent;border-radius:10px;justify-content:center;align-items:center;gap:8px;padding:0 22px;text-decoration:none;display:inline-flex}.nb-btn:active{transform:translateY(1px)}.nb-btn-blue{background:var(--nb-blue);color:#fff}.nb-btn-blue:hover{background:var(--nb-blue-press)}.nb-btn-light{color:var(--nb-navy);background:#fff}.nb-btn-light:hover{background:var(--nb-blueback)}.nb-btn-ghost{border-color:var(--nb-line);color:var(--nb-navy);background:#fff}.nb-btn-ghost:hover{border-color:var(--nb-navy-light)}.nb-btn-ghost-light{color:#fff;border-color:rgba(255,255,255,.55)}.nb-btn-ghost-light:hover{background:rgba(255,255,255,.08);border-color:#fff}.nb-cta{flex-wrap:wrap;gap:12px;display:flex}.nb .nb-on-navy :focus-visible{outline-color:#fff}.nb-sec{padding-top:max(72px,min(9vw,128px));padding-bottom:max(72px,min(9vw,128px))}.nb .nb-sec-h{letter-spacing:-.03em;color:var(--nb-navy);text-wrap:balance;margin:0;font-size:max(2rem,min(1.2rem + 2.2vw,3rem));font-weight:800;line-height:1.08}.nb .nb-sec-p{max-width:34em;font-family:var(--nb-read);color:var(--nb-slate);margin:16px 0 0;font-size:1.125rem;line-height:1.6}.nb-hero{z-index:2;background:var(--nb-navy);color:#fff;padding:max(40px,min(5vw,72px)) 0 56px;position:relative;overflow-x:clip}.nb-hero:before{content:"";pointer-events:none;background:url(/textures/grain.png),radial-gradient(1100px 640px at 6% -4%,rgba(77,132,192,.24),transparent 62%),radial-gradient(900px 700px at 96% 40%,rgba(77,132,192,.12),transparent 64%);position:absolute;top:0;bottom:0;left:0;right:0}.nb-hero>.mk-in{position:relative}.nb-hero+.nb-sample{padding-top:calc(196px + max(48px,min(5vw,72px)))}.nb .nb-h1{letter-spacing:-.04em;color:#fff;text-wrap:balance;max-width:12.5em;margin:0 0 max(28px,min(3.4vw,48px));font-size:max(2.75rem,min(1rem + 5.2vw,6rem));font-weight:800;line-height:.97}.nb .nb-lede{max-width:31em;font-family:var(--nb-read);color:var(--nb-on-navy-2);margin:0 0 26px;font-size:1.1875rem;line-height:1.55}.nb-grid{grid-template-columns:minmax(0,9fr) minmax(0,15fr);align-items:start;gap:max(32px,min(4vw,64px));scroll-margin-top:84px;display:grid}.nb-rail{margin-top:44px}.nb-rail-head{justify-content:space-between;align-items:center;gap:12px;margin-bottom:10px;display:flex}.nb .nb-rail-head h2{color:var(--nb-on-navy-3);margin:0;font-size:.875rem;font-weight:800}.nb-pause{border:1px solid var(--nb-navy-rule);min-height:40px;color:var(--nb-on-navy-2);font:600 .875rem/1 var(--nb-ui);cursor:pointer;background:0 0;border-radius:999px;align-items:center;gap:8px;padding:0 14px;display:inline-flex}.nb-pause:hover{color:#fff;border-color:rgba(198,213,232,.4)}.nb-pause svg{width:14px;height:14px}.nb-rail-list>li{position:relative}.nb-stop{width:100%;color:var(--nb-on-navy-3);font:inherit;text-align:left;cursor:pointer;background:0 0;border:0;grid-template-columns:14px minmax(0,1fr);gap:16px;padding:9px 0;display:grid}.nb-stop-mark{z-index:1;border:2px solid var(--nb-on-navy-3);background:var(--nb-navy);width:14px;height:14px;transition:background-color .25s var(--nb-ease),border-color .25s var(--nb-ease),box-shadow .25s var(--nb-ease);margin-top:4px;position:relative}.nb-stop-t{font:700 1.0625rem/1.35 var(--nb-ui);transition:color .2s var(--nb-ease);display:block}.nb-stop-b{max-width:30em;font-family:var(--nb-read);color:var(--nb-on-navy-2);margin-top:6px;font-size:1rem;line-height:1.55;display:none}.nb-stop:hover .nb-stop-t,.nb-stop[aria-selected=true] .nb-stop-t{color:#fff}.nb-stop[aria-selected=true] .nb-stop-b{animation:nbBody .35s 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p.nb-dim{color:var(--nb-faint);margin:0}.nb-pmark{background:linear-gradient(var(--nb-blueback-deep),var(--nb-blueback-deep))no-repeat 0 0/0% 100%;color:inherit;border-bottom:2px solid transparent;padding:1px 0}.nb-demo[data-step="2"] .nb-pmark{animation:nbMark 7s var(--nb-ease)both}.nb-demo[data-step="3"] .nb-pmark,.nb-demo[data-step="4"] .nb-pmark{border-bottom-color:var(--nb-blue);background-size:100% 100%}@keyframes nbMark{0%,8%{background-size:0% 100%;border-bottom-color:transparent}18%,to{border-bottom-color:var(--nb-blue);background-size:100% 100%}}.nb-win{z-index:2;background:var(--nb-blueback-deep);color:var(--nb-ink);box-shadow:var(--nb-shadow-win);border-radius:16px;margin:206px 0 0 24%;position:relative;overflow:hidden}.nb-win-top{background:var(--nb-navy-ink);color:#fff;align-items:center;gap:14px;height:48px;padding:0 18px;display:flex}.nb-win-top img{width:20px;height:20px}.nb-crumb{color:var(--nb-on-navy-2);font-size:.875rem}.nb-crumb b{color:#fff;font-weight:700}.nb-win-sp{color:var(--nb-on-navy-3);margin-left:auto;font-size:.8125rem}.nb-sheet{background:#fff;border-radius:12px;align-items:start;margin:10px;padding:24px 28px;display:grid;position:relative}.nb-st{visibility:hidden;grid-area:1/1;min-width:0}.nb-st[data-on=true]{visibility:visible}.nb-st .nb-kicker{color:var(--nb-blue);margin:0 0 4px;font-size:.8125rem;font-weight:700}.nb-st .nb-s-title{letter-spacing:-.015em;color:var(--nb-navy);margin:0 0 14px;font-size:1.375rem;font-weight:800}.nb-paste{border:1.5px solid var(--nb-line);max-height:150px;font-family:var(--nb-read);color:var(--nb-ink);border-radius:10px;padding:16px 18px;font-size:.9375rem;line-height:1.55;position:relative;overflow:hidden;-webkit-mask-image:linear-gradient(#000 70%,transparent);mask-image:linear-gradient(#000 70%,transparent)}.nb-paste-ph{color:var(--nb-faint);position:absolute;top:16px;bottom:auto;left:18px;right:18px}.nb-paste-txt p{margin:0 0 6px}.nb-paste-txt p:first-child{font-family:var(--nb-ui);font-weight:700}.nb-ui-row{flex-wrap:wrap;align-items:center;gap:16px;margin-top:18px;display:flex}.nb-ui-btn{background:var(--nb-blue);color:#fff;border-radius:9px;align-items:center;min-height:40px;padding:0 16px;font-size:.9375rem;font-weight:700;display:inline-flex}.nb-swap{flex:280px;align-items:center;min-width:0;display:grid}.nb-swap>*{grid-area:1/1}.nb-status{color:var(--nb-slate);opacity:0;align-items:center;gap:10px;font-size:.875rem;display:inline-flex}.nb-spin{border:2px solid var(--nb-line);border-top-color:var(--nb-blue);border-radius:50%;width:16px;height:16px;animation:.8s linear infinite nbSpin}.nb-meter{background:var(--nb-line-soft);border-radius:4px;width:140px;height:4px;margin-left:6px;display:block;overflow:hidden}.nb-meter 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