.fb-hero__grid{display:grid;gap:var(--space-2xl);align-items:center}@media (min-width:960px){.fb-hero__grid{grid-template-columns:1.05fr .95fr}}.fb-hero__mark{display:flex;align-items:center;gap:.75rem;margin-bottom:var(--space-md)}.fb-hero__mark img{border-radius:12px}.fb-actions{display:flex;flex-wrap:wrap;gap:.75rem;align-items:center;margin-top:var(--space-lg)}.fb-actions__note{font-family:var(--font-mono);font-size:.8rem;color:var(--ink-600,var(--text-secondary))}.fb-demo{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-lg)}.fb-phone{position:relative;aspect-ratio:466/678;border-radius:22px;background:var(--d-bg,#14120E);padding:6px;box-shadow:var(--shadow-lg)}.fb-phone__screen{position:relative;height:100%;border-radius:17px;overflow:hidden;background:var(--paper-50,#FBFAF7);display:grid;grid-template-columns:1fr 18%}.fb-phone__page{padding:10% 8% 0;display:flex;flex-direction:column;gap:6%}.fb-phone__page i{display:block;height:4%;min-height:4px;border-radius:3px;background:var(--ink-900,#2B2720);opacity:.18}.fb-phone__page i:first-child{height:7%;min-height:7px;width:70%;opacity:.85}.fb-phone__page i:nth-child(3n){width:85%}.fb-phone__strip{background:rgba(43,39,32,.08);border-left:1px solid rgba(43,39,32,.12);display:flex;flex-direction:column;align-items:center;gap:12%;padding-top:22%}.fb-phone__strip b{width:46%;aspect-ratio:1;border-radius:50%;background:rgba(43,39,32,.35)}.fb-phone__cam{position:absolute;top:3%;right:5%;width:6%;aspect-ratio:1;border-radius:50%;background:#0a0908;box-shadow:0 0 0 2px rgba(255,255,255,.08)}.fb-phone--wide .fb-phone__screen{grid-template-columns:1fr}.fb-phone--wide .fb-phone__page{padding-right:8%}.fb-phone--wide .fb-phone__strip{position:absolute;top:0;right:0;bottom:0;width:18%;background:rgba(251,250,247,.55);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);border-left:1px solid rgba(43,39,32,.1)}.fb-phone--wide .fb-phone__page i{width:100%}.fb-phone--wide .fb-phone__page i:first-child{width:78%}.fb-phone--wide .fb-phone__page i:nth-child(3n){width:92%}.fb-demo__cap{margin-top:.6rem;font-family:var(--font-mono);font-size:.78rem;letter-spacing:.02em;color:var(--text-secondary);text-align:center}.fb-points{display:grid;gap:var(--space-lg);margin-top:var(--space-2xl)}@media (min-width:768px){.fb-points{grid-template-columns:repeat(3,1fr)}}.fb-point h3{font-size:1.1rem;margin-bottom:.4rem}.fb-point__n{display:inline-block;font-family:var(--font-mono);font-size:.75rem;color:var(--brass-700,#8A6E3C);margin-right:.6rem}.fb-steps{display:grid;gap:var(--space-md);margin-top:var(--space-2xl);max-width:760px}.fb-step{display:grid;grid-template-columns:2.25rem 1fr;gap:1rem;align-items:start}.fb-step__n{width:2.25rem;height:2.25rem;border-radius:50%;display:grid;place-items:center;background:var(--brass-500,#C8A15A);color:var(--ink-900,#2B2720);font-family:var(--font-mono);font-weight:600}.fb-step h3{font-size:1.05rem;margin-bottom:.25rem}.fb-two{display:grid;gap:var(--space-2xl)}@media (min-width:960px){.fb-two{grid-template-columns:1.2fr .8fr;align-items:start}}.fb-prose h2{margin-top:var(--space-2xl)}.fb-prose h2:first-child{margin-top:0}.fb-prose li,.fb-prose p{color:var(--text-secondary)}.fb-prose ul{padding-left:1.2rem}.fb-aside{position:sticky;top:6rem}.fb-aside .card+.card{margin-top:var(--space-md)}.fb-kv{display:grid;grid-template-columns:auto 1fr;gap:.35rem 1rem;font-size:.95rem}.fb-kv dt{font-family:var(--font-mono);font-size:.8rem;color:var(--text-secondary)}