:root{color-scheme:dark;--bg:#0b0c0e;--fg:#f5f5f7;--mute:#a1a1a6;--line:rgba(255,255,255,.10);--glass:rgba(255,255,255,.06)}
*{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--fg);font:17px/1.5 -apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang SC","Hiragino Sans","Apple SD Gothic Neo",system-ui,sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit}.wrap{max-width:1040px;margin:0 auto;padding:0 20px}
header{position:sticky;top:0;z-index:5;backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);background:rgba(11,12,14,.7);border-bottom:1px solid var(--line)}
header .wrap{display:flex;align-items:center;gap:10px;height:52px}header img{width:26px;height:26px}header b{font-weight:600}
.hero{text-align:center;padding:88px 20px 56px}.hero img{width:128px;height:128px;filter:drop-shadow(0 18px 40px rgba(0,0,0,.6))}
h1{font-size:clamp(36px,6vw,64px);line-height:1.08;letter-spacing:-.02em;margin:28px 0 28px;font-weight:700}
.btn{display:inline-block;padding:12px 26px;border-radius:999px;background:var(--fg);color:#000;font-weight:600;text-decoration:none}
.btn.off{background:var(--glass);color:var(--mute);border:1px solid var(--line)}
section{padding:56px 0}h2{font-size:clamp(26px,3.6vw,40px);letter-spacing:-.015em;text-align:center;margin-bottom:32px;font-weight:700}
.glass{background:var(--glass);border:1px solid var(--line);border-radius:22px;backdrop-filter:blur(30px);-webkit-backdrop-filter:blur(30px)}
.fit{display:grid;grid-template-columns:1fr 1fr;gap:18px}.fit .glass{padding:28px 20px;text-align:center}
.mon{width:min(240px,100%);margin:0 auto 18px}.scr{aspect-ratio:16/10;border:6px solid #b8b8bd;border-radius:10px;overflow:hidden;background:#000}
.stand{width:16%;height:18px;background:#9d9da2;margin:0 auto}.foot{width:44%;height:6px;border-radius:3px;background:#c4c4c8;margin:0 auto}
.zones{display:grid;grid-template-columns:repeat(12,1fr);grid-auto-rows:1fr;gap:1px;height:100%;padding:1px}
.zones i{background:#6b6b70;border-radius:1px;animation:z 4s infinite ease-in-out both}
@keyframes z{0%,8%{background:#6b6b70}30%,80%{background:#000}96%,100%{background:#6b6b70}}
.lcd{height:100%;background:#6b6b70;animation:l 4s infinite ease-in-out}
@keyframes l{0%,8%{background:#6b6b70}30%,80%{background:#3a3a3e;box-shadow:inset 0 0 40px rgba(160,160,170,.35)}96%,100%{background:#6b6b70}}
.fit h3{font-size:19px;display:flex;align-items:center;justify-content:center;gap:8px}.fit p{color:var(--mute);font-size:15px;margin-top:4px}
.ok,.no{width:18px;height:18px;border-radius:50%;display:inline-grid;place-items:center;font-size:12px;color:#000;font-weight:800}.ok{background:#30d158}.no{background:#ff453a}
.feats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.feats .glass{padding:24px}
.feats svg{width:28px;height:28px;stroke:var(--fg);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;margin-bottom:14px}
.feats h3{font-size:18px;margin-bottom:6px}.feats p{color:var(--mute);font-size:15px}
.faq{max-width:720px;margin:0 auto}.faq details{padding:18px 22px;margin-bottom:10px}.faq summary{cursor:pointer;font-weight:600}.faq p{color:var(--mute);margin-top:10px}
.doc{max-width:720px;margin:0 auto;padding:72px 20px}.doc h1{font-size:40px;margin:0 0 24px}.doc section{padding:0}.doc h2{text-align:left;font-size:22px;margin:36px 0 10px}.doc p{color:var(--mute);margin-bottom:8px}
footer{border-top:1px solid var(--line);padding:28px 0 44px;color:var(--mute);font-size:14px}
footer .wrap{display:flex;flex-wrap:wrap;gap:14px 22px;align-items:center}footer nav{display:flex;flex-wrap:wrap;gap:8px 14px}footer a{text-decoration:none}footer a:hover,footer a[aria-current]{color:var(--fg)}
@media (max-width:820px){.feats{grid-template-columns:1fr 1fr}}@media (max-width:560px){.fit,.feats{grid-template-columns:1fr}.hero{padding-top:56px}}
@media (prefers-reduced-motion:reduce){.zones i,.lcd{animation:none}.zones i{background:#000}}