.installation-walkthrough{max-width:1280px;color:var(--color-ink);margin:auto;padding:72px 32px;scroll-margin-top:90px}.walkthrough-heading{max-width:800px}.walkthrough-heading>p:first-child{letter-spacing:1.5px;text-transform:uppercase;color:var(--color-accent);margin-bottom:14px;font-size:12px;font-weight:600}.walkthrough-heading h2{font-family:var(--font-heading);margin-bottom:20px;font-size:clamp(30px,4vw,46px);font-weight:400;line-height:1.15}.walkthrough-heading>p:last-child{color:var(--color-muted);margin-bottom:28px;font-size:18px;line-height:1.7}.installation-walkthrough video{aspect-ratio:16/9;object-fit:contain;background:var(--color-brand);border:1px solid var(--color-gray-300);border-radius:10px;width:100%;height:auto;display:block}.walkthrough-note{color:var(--color-muted);margin:16px 0 24px;font-size:13px;line-height:1.6}.installation-walkthrough details{border-top:1px solid var(--color-gray-300);border-bottom:1px solid var(--color-gray-300);padding:16px 0}.installation-walkthrough summary{cursor:pointer;min-height:44px;padding:10px 0;font-weight:600}.installation-walkthrough ol{max-width:900px;padding:8px 0 8px 24px}.installation-walkthrough li{padding:8px 0 12px 8px;line-height:1.8}.walkthrough-download{text-underline-offset:4px;min-height:48px;color:var(--color-brand);align-items:center;margin-top:16px;text-decoration:underline;display:inline-flex}.installation-walkthrough :is(video,a,summary):focus-visible{outline:3px solid var(--color-accent);outline-offset:5px}@media (max-width:580px){.installation-walkthrough{padding:48px 20px}}