:root{--bg:#f6f6f8;--card:#ffffff;--ink:#1c1c1e;--sub:#3c3c43;--grey:#6e6e76;--line:#e3e3e8;--accent:#0a84ff;--pill:#000;--pill-ink:#fff;--max:1040px}
@media (prefers-color-scheme:dark){:root{--bg:#0b0b0d;--card:#161618;--ink:#f2f2f7;--sub:#c7c7cc;--grey:#8e8e93;--line:#2a2a2e;--accent:#4aa3ff;--pill:#fff;--pill-ink:#000}}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.55 -apple-system,BlinkMacSystemFont,"SF Pro Text","Helvetica Neue",Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
header.top{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:12px;flex-wrap:wrap}
header.top .brand{display:flex;align-items:center;gap:10px;font-weight:600;color:var(--ink)}
header.top .brand img{width:32px;height:32px;border-radius:8px}
header.top nav{display:flex;gap:18px;font-size:15px}
header.top nav a{color:var(--sub);white-space:nowrap}
.hero{display:grid;grid-template-columns:1.1fr 1fr;gap:32px;align-items:center;padding:36px 0 24px}
.hero .icon{width:128px;height:128px;border-radius:29px;box-shadow:0 14px 34px rgba(0,0,0,.18)}
.hero h1{font-size:44px;line-height:1.1;margin:18px 0 8px;letter-spacing:-.02em}
.hero .tag{font-size:22px;color:var(--sub);margin:0 0 18px}
.hero .meta{color:var(--grey);font-size:15px;margin:0 0 20px}
.badge img{height:56px;display:block}
.hero .shots{display:flex;gap:14px;justify-content:center}
.hero .shots img{width:min(46%,230px);border-radius:22px;box-shadow:0 12px 30px rgba(0,0,0,.18)}
.strip{display:flex;gap:16px;overflow-x:auto;padding:8px 0 18px;scroll-snap-type:x mandatory}
.strip figure{margin:0;flex:0 0 auto;scroll-snap-align:start;text-align:center}
.strip img{width:220px;border-radius:22px;box-shadow:0 10px 26px rgba(0,0,0,.16)}
.strip figcaption{font-size:14px;color:var(--grey);margin-top:8px}
section{padding:28px 0;border-top:1px solid var(--line)}
h2{font-size:28px;letter-spacing:-.01em;margin:0 0 14px}
h3{font-size:20px;margin:22px 0 8px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px 18px}
.card h3{margin:0 0 6px;font-size:17px}.card p{margin:0;color:var(--sub);font-size:15px}
ol.steps{padding-left:22px}ol.steps li{margin:8px 0}
kbd,code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.92em;background:var(--card);border:1px solid var(--line);border-radius:6px;padding:1px 6px}
.faq details{border-bottom:1px solid var(--line);padding:10px 0}.faq summary{cursor:pointer;font-weight:600}
.note{background:var(--card);border-left:4px solid var(--accent);padding:12px 16px;border-radius:10px;color:var(--sub);font-size:15px}
footer{padding:28px 0 48px;color:var(--grey);font-size:14px;border-top:1px solid var(--line)}
footer p{margin:6px 0}
.guide h2{margin-top:8px}.guide ul{padding-left:22px}.guide li{margin:5px 0}
.guide .fig{display:flex;gap:16px;align-items:flex-start;flex-wrap:wrap}.guide .fig img{width:200px;border-radius:18px;box-shadow:0 8px 22px rgba(0,0,0,.14)}
.toc{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px 18px;font-size:15px}
.toc a{display:inline-block;margin:3px 14px 3px 0}
@media (max-width:760px){.hero{grid-template-columns:1fr;padding-top:20px}.hero h1{font-size:36px}.hero .shots img{width:44%}header.top nav{gap:6px 14px;font-size:14px;flex-wrap:wrap}}
.guide table{border-collapse:collapse;width:100%;margin:10px 0 14px;font-size:15px;background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.guide th,.guide td{text-align:left;padding:8px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.guide th{font-weight:600;color:var(--sub);background:var(--bg)}
.guide tr:last-child td{border-bottom:0}
.tip{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px 16px;margin:10px 0;font-size:15px;color:var(--sub)}
.tip strong{color:var(--ink)}
.shots-row{display:flex;gap:14px;flex-wrap:wrap;margin:14px 0 18px}
.shots-row figure{margin:0;width:190px;text-align:center}
.shots-row img{width:100%;border-radius:18px;box-shadow:0 8px 22px rgba(0,0,0,.16);display:block}
.shots-row figcaption{font-size:13px;color:var(--grey);margin-top:6px;line-height:1.35}
.shot-wide{display:block;max-width:520px;width:100%;border-radius:16px;box-shadow:0 8px 22px rgba(0,0,0,.14);margin:12px 0 16px}
@media (max-width:760px){.shots-row figure{width:calc(50% - 7px)}}
.demo{margin:6px 0 0;text-align:center}
.demo video{display:block;width:100%;max-width:760px;height:auto;margin:0 auto;border-radius:18px;background:#000;box-shadow:0 14px 34px rgba(0,0,0,.22)}
.demo figcaption{font-size:14px;color:var(--grey);margin-top:10px;line-height:1.4}
.hero-v{grid-template-columns:1fr;gap:26px}
.hero-head{display:flex;gap:28px;align-items:center}
.hero-head .icon{width:120px;height:120px;flex:none}
.hero-head h1{margin:0 0 6px}
.hero-head .tag{margin:0 0 10px}
.hero-head .meta{margin:0 0 16px}
.promo{margin:0}
.promo-frame{position:relative;aspect-ratio:16/9;border-radius:18px;overflow:hidden;background:#070d16;box-shadow:0 18px 44px rgba(0,0,0,.25)}
.promo video{display:block;width:100%;height:100%}
.promo .sound{position:absolute;top:14px;right:14px;font:600 15px/1 -apple-system,BlinkMacSystemFont,"SF Pro Text","Helvetica Neue",Arial,sans-serif;color:#071018;background:#ffd60a;border:0;border-radius:999px;padding:11px 16px;cursor:pointer;box-shadow:0 6px 18px rgba(0,0,0,.35)}
.promo .sound:focus-visible{outline:3px solid #5ac8fa;outline-offset:2px}
.promo figcaption{font-size:14px;color:var(--grey);margin-top:10px;text-align:center}
@media (max-width:760px){.hero-head{flex-direction:column;align-items:flex-start;gap:14px}.hero-head .icon{width:96px;height:96px}.promo-frame{overflow:visible;border-radius:0;box-shadow:none;background:none;aspect-ratio:auto}.promo video{border-radius:14px;box-shadow:0 12px 30px rgba(0,0,0,.25);height:auto;aspect-ratio:16/9;background:#070d16}.promo .sound{position:static;display:block;margin:12px auto 0;font-size:14px;padding:10px 16px}}
.promo .sound[hidden]{display:none}