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.plus{transform:rotate(45deg);color:var(--signal)}.opticall-landing .faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}.opticall-landing .faq-a p{padding:0 24px 22px;font-size:14px;color:var(--muted);line-height:1.6;max-width:64ch}.opticall-landing .cta-band{background:var(--ink-900);border:1px solid var(--ink-border);border-radius:24px;padding:64px 56px;text-align:center;position:relative;overflow:hidden;isolation:isolate}.opticall-landing .cta-band:before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(480px 260px at 50% -20%,color-mix(in srgb,var(--signal) 16%,transparent),transparent 70%)}.opticall-landing .cta-band h2{font-size:clamp(26px,3.6vw,38px);font-weight:600;max-width:20ch;margin:0 auto}.opticall-landing .cta-band p{margin-top:16px;color:var(--muted);font-size:15.5px}.opticall-landing .cta-actions{display:flex;justify-content:center;gap:14px;margin-top:30px;flex-wrap:wrap}.opticall-landing footer{border-top:1px solid var(--ink-border-soft);padding:64px 0 36px}.opticall-landing .foot-top{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:40px;padding-bottom:44px;border-bottom:1px solid var(--ink-border-soft)}@media (max-width:760px){.opticall-landing .foot-top{grid-template-columns:repeat(2,1fr)}}.opticall-landing .foot-brand p{margin-top:14px;font-size:13.5px;color:var(--muted);max-width:32ch;line-height:1.6}.opticall-landing .foot-col h5{font-family:var(--font-mono);font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted-2);margin-bottom:14px}.opticall-landing .foot-col a{display:block;font-size:13.5px;color:var(--muted);padding:6px 0;transition:color .15s ease}.opticall-landing .foot-col a:hover{color:var(--paper)}.opticall-landing .foot-row{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;padding-top:28px}.opticall-landing .foot-note{font-family:var(--font-mono);font-size:12px;color:var(--muted-2)}.opticall-landing #demo .video-tabs{display:flex;gap:8px;overflow-x:auto;padding-bottom:12px;border-bottom:1px solid var(--ink-border-soft);margin-bottom:20px;-webkit-overflow-scrolling:touch;scrollbar-width:none}.opticall-landing #demo .video-tabs::-webkit-scrollbar{display:none}.opticall-landing #demo .video-tab-btn{flex-shrink:0;padding:8px 16px;border-radius:8px;font-size:13.5px}.opticall-landing #demo .video-player-wrap{border-radius:10px;overflow:hidden;background:#000;position:relative}.opticall-landing #demo .video-player{width:100%;max-height:560px;object-fit:contain;display:block}.opticall-landing #demo .video-meta{margin-top:16px;display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:14px}.opticall-landing #demo .video-meta h4{font-size:16px;font-weight:600;color:var(--paper)}.opticall-landing #demo .video-meta p{font-size:13.5px;color:var(--muted);margin-top:4px}@media (max-width:768px){.opticall-landing .wrap{padding:0 18px}.opticall-landing section{padding:64px 0}.opticall-landing .hero{padding:64px 0 48px}.opticall-landing .hero-grid{gap:40px}.opticall-landing .hero h1{font-size:clamp(32px,8vw,44px)}.opticall-landing .hero-sub{font-size:15px;max-width:100%}.opticall-landing .hero-actions{flex-direction:column;align-items:stretch}.opticall-landing .hero-actions .btn{justify-content:center}.opticall-landing .waveform{margin-top:28px}.opticall-landing .feed-row{grid-template-columns:auto 1fr;gap:10px;padding:12px 14px}.opticall-landing .feed-row .tag{grid-column:1/-1;justify-self:start;margin-top:2px}.opticall-landing .feed-foot{flex-direction:column;align-items:flex-start;gap:8px;padding:12px 14px}.opticall-landing .stats{padding:40px 0}.opticall-landing .section-head{margin-bottom:40px}.opticall-landing .section-head p{font-size:15px}.opticall-landing .step{padding:28px 22px}.opticall-landing .tab-panels{padding:24px 18px}.opticall-landing .tab-panel h3{font-size:20px}.opticall-landing .usecase-pie-wrap{flex-direction:column;align-items:flex-start;gap:16px}.opticall-landing .chart-card{padding:20px}.opticall-landing .bar-label{width:72px;font-size:12px}.opticall-landing .cta-band{padding:40px 24px;border-radius:18px}.opticall-landing .cta-actions{flex-direction:column;align-items:stretch}.opticall-landing .cta-actions .btn{justify-content:center}.opticall-landing footer{padding:48px 0 28px}.opticall-landing #demo .video-player{max-height:240px}.opticall-landing #demo .video-meta .btn{width:100%;justify-content:center}.opticall-landing .faq-q{padding:16px 18px;font-size:14px;gap:14px}.opticall-landing .faq-a p{padding:0 18px 18px;font-size:13.5px}.opticall-landing .price-card{padding:24px 20px}.opticall-landing .marquee-band{padding:18px 0}}@media (max-width:480px){.opticall-landing .wrap{padding:0 16px}.opticall-landing .foot-top{grid-template-columns:1fr;gap:28px}.opticall-landing .stats-row{gap:16px}.opticall-landing .stat b{font-size:26px}.opticall-landing .brand{font-size:15px}.opticall-landing .foot-row{flex-direction:column;align-items:flex-start}}