.feature-strip{list-style:none;margin:0 auto clamp(1.8rem,4vw,2.8rem);padding:0;display:flex;flex-wrap:wrap;justify-content:center;gap:.6rem .7rem}.feature-strip li{display:inline-flex;align-items:center;gap:.5rem;font-size:.86rem;font-weight:600;color:var(--text);background:#ffffffb3;border:1px solid var(--line);border-radius:999px;padding:.5rem 1rem;backdrop-filter:blur(8px);box-shadow:var(--shadow-sm);white-space:nowrap}.feature-strip svg{width:17px;height:17px;flex-shrink:0;fill:none;stroke:var(--gold-deep);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.feature-strip li{transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}.feature-strip li:hover{transform:translateY(-2px);border-color:#c9a24b8c;box-shadow:var(--shadow-md)}@media(max-width:600px){.feature-strip li{font-size:.8rem;padding:.42rem .8rem}}.band--article{padding-top:clamp(1rem,2.5vw,1.8rem);background:radial-gradient(900px 500px at 100% 0%,rgba(91,123,255,.05),transparent 60%),radial-gradient(800px 460px at 0% 30%,rgba(255,154,90,.05),transparent 55%)}.article{width:min(960px,92vw);margin-inline:auto}.article>h2{font-family:var(--serif);font-weight:600;letter-spacing:-.01em;font-size:clamp(1.75rem,3.4vw,2.5rem);line-height:1.12;margin:3rem 0 1rem;padding-top:1.4rem;scroll-margin-top:90px;background:linear-gradient(120deg,#1a2238 35%,#3a4a78 75%);-webkit-background-clip:text;background-clip:text;color:transparent}.article>h2:before{content:"";display:block;width:52px;height:4px;border-radius:3px;margin-bottom:1rem;background:linear-gradient(90deg,var(--gold-2),var(--gold-deep));box-shadow:0 3px 10px -4px #a9842fb3}.article>h2:first-child{margin-top:0;padding-top:0}.article>h3,.article .split-text>h3{position:relative;padding-left:1rem;font-size:clamp(1.18rem,2.2vw,1.42rem);font-weight:700;color:var(--ink);margin:1.9rem 0 .6rem;scroll-margin-top:90px}.article>h3:before,.article .split-text>h3:before{content:"";position:absolute;left:0;top:.22em;width:5px;height:1.05em;border-radius:3px;background:linear-gradient(180deg,var(--gold-2),var(--gold-deep))}.article p{color:var(--text);font-size:1.02rem;line-height:1.75;margin:0 0 1rem}.article p .vmono{color:var(--royal);font-size:.95em}.article strong{color:var(--ink);font-weight:700}.article a{color:var(--royal);text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:1px;transition:color .2s}.article a:hover{color:var(--ink)}.cta-band a:not(.btn){color:var(--gold-2);text-decoration:underline;text-underline-offset:2px;font-weight:600}.cta-band a:not(.btn):hover{color:#fff}.article-intro{margin-bottom:1.4rem;padding:1.4rem 1.6rem;background:#ffffff8c;border:1px solid var(--line-soft);border-left:4px solid var(--gold);border-radius:0 var(--radius-sm) var(--radius-sm) 0;box-shadow:var(--shadow-sm)}.article-intro .eyebrow{margin-bottom:.7rem}.lede-2{font-size:1.1rem!important;color:var(--muted)!important;line-height:1.8!important;margin:0!important}.article .steps{margin:1.4rem 0 .6rem}.article .stepcard{transition:transform .25s ease,box-shadow .25s ease}.article .stepcard:after{content:"";position:absolute;inset:0 0 auto;height:3px;background:linear-gradient(90deg,var(--gold-2),var(--gold-deep));transform:scaleX(0);transform-origin:left;transition:transform .3s ease}.article .stepcard:hover:after{transform:scaleX(1)}.article .formula-grid{margin:1rem 0}.table-wrap{overflow-x:auto;margin:1rem 0 1.4rem}.ctable{width:100%;border-collapse:collapse;font-size:.96rem;background:#ffffffb3;border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden}.ctable th,.ctable td{text-align:left;padding:.72rem .95rem;border-bottom:1px solid var(--line-soft)}.ctable thead th{background:linear-gradient(160deg,#f8f9ff,#eef0fb);color:var(--ink);font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;font-weight:700}.ctable tbody tr:nth-child(2n){background:#14204006}.ctable tbody tr:last-child td{border-bottom:0}.ctable tbody tr:hover{background:#c9a24b14}.ctable td.vmono{font-family:var(--mono);color:var(--royal);font-weight:600;white-space:nowrap}.example-row{display:grid;grid-template-columns:minmax(0,220px) minmax(0,1fr);gap:1.2rem;align-items:center;margin:1rem 0 1.6rem}.mini-diagram{background:radial-gradient(320px 240px at 50% 40%,#fbfcff,#f1f3fc);border:1px solid var(--line-soft);border-radius:var(--radius-sm);padding:.6rem}.mini-diagram svg{width:100%;height:auto;display:block}.md-axis{stroke:#b9c0d6;stroke-width:1.4}.md-fill{fill:#2f55ff14;stroke:#2f55ff40;stroke-width:1}.md-vec{stroke:var(--flame);stroke-width:3;stroke-linecap:round}.md-arc{fill:none;stroke:var(--flame);stroke-width:1.6}.md-tip{fill:#fff;stroke:var(--flame);stroke-width:3}.md-lab{font-family:var(--mono);font-size:13px;fill:var(--muted);font-weight:600}.md-lab--vec{fill:var(--flame)}.example-row .table-wrap{margin:0}.viz{max-width:440px;margin:.4rem auto 1.7rem}.viz .mini-diagram{padding:1rem 1.1rem}.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,320px);gap:1.4rem 2.2rem;align-items:center;margin:1.9rem 0 1.6rem}.split-text>h3:first-child{margin-top:0}.split-text>p:last-child{margin-bottom:0}.split-media .viz{max-width:none;margin:0}@media(max-width:720px){.split{grid-template-columns:1fr;gap:1rem}.split-media{max-width:440px}}.md-surface{stroke:#8893ad;stroke-width:2.5;stroke-linecap:round}.md-hatch{stroke:#b9c0d6;stroke-width:1.3}.md-curve{fill:none;stroke:var(--royal);stroke-width:2.6;stroke-linecap:round}.md-unit{stroke:var(--gold-deep);stroke-width:3;stroke-linecap:round}.md-unit-fill,.md-lab--gold{fill:var(--gold-deep)}.article .worked{margin:1.4rem 0 1.6rem}.article .worked p{color:#e3e8f6}.article .worked p .vmono{color:var(--gold-2)}.article .faq{margin-top:1rem}.cta-band{position:relative;overflow:hidden;margin:3.4rem 0 1rem;text-align:center;background:linear-gradient(155deg,#131a30,#0c1124);color:#fff;border:1px solid rgba(201,162,75,.3);border-radius:var(--radius);padding:2.6rem 1.8rem;box-shadow:var(--shadow-lg)}.cta-band:before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(540px 220px at 50% -10%,rgba(231,200,120,.22),transparent 62%)}.cta-band>*{position:relative}.cta-band h2{font-family:var(--serif);font-weight:600;color:#fff;margin:0 0 .7rem;font-size:clamp(1.6rem,3vw,2.2rem)}.cta-band h2:before{display:none}.cta-band p{color:#c8cee0!important;max-width:560px;margin:0 auto 1.4rem!important}.btn--cta{background:linear-gradient(140deg,var(--gold-2),var(--gold-deep));color:#1a1402;font-weight:700;padding:.8rem 1.6rem;box-shadow:0 10px 24px -10px #a9842fcc}.btn--cta:hover{transform:translateY(-2px);box-shadow:0 14px 30px -10px #a9842fe6}.cta-band a.btn--cta,.cta-band a.btn--cta:link,.cta-band a.btn--cta:visited,.cta-band a.btn--cta:hover,.cta-band a.btn--cta:active{color:#110d04;text-decoration:none}.cta-band a.btn--cta:focus{outline:none}.cta-band a.btn--cta:focus-visible{outline:2px solid var(--gold-deep);outline-offset:3px}@media(max-width:600px){.example-row{grid-template-columns:1fr}.article>h2{margin-top:2.2rem}}