:root{--bg: #fff;--fg: #202124;--muted: #5f6368;--border: #e0e3e7;--card: #f8f9fa;--accent: #1a73e8;--accent2: #1558d6}@media(prefers-color-scheme:dark){:root{--bg: #17181a;--fg: #e8eaed;--muted: #9aa0a6;--border: #3c4043;--card: #202124;--accent: #8ab4f8;--accent2: #aecbfa}}*{box-sizing:border-box}body{margin:0;font-family:Roboto,-apple-system,Segoe UI,Arial,sans-serif;color:var(--fg);background:var(--bg);line-height:1.6}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}code{background:var(--card);padding:1px 5px;border-radius:5px;font-size:.9em}.muted{color:var(--muted)}.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 24px;border-bottom:1px solid var(--border);flex-wrap:wrap}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:600;color:var(--fg)}.nav nav{display:flex;gap:18px}.nav nav a{color:var(--muted)}.nav nav a.on,.nav nav a:hover{color:var(--fg)}main{max-width:960px;margin:0 auto;padding:0 24px}.hero{text-align:center;padding:64px 0 24px}.hero-icon{border-radius:22px}.hero h1{font-size:44px;margin:18px 0 8px;letter-spacing:-.02em}.tag{font-size:20px;color:var(--muted);margin:0 auto;max-width:620px}.cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:26px}.btn{display:inline-block;padding:12px 22px;border-radius:999px;border:1px solid var(--border);color:var(--fg);font-weight:500}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn:hover{text-decoration:none;filter:brightness(1.05)}.dl-note{margin-top:14px;font-size:13px;color:var(--muted)}.shot{margin:36px 0}.shot img{width:100%;border:1px solid var(--border);border-radius:14px;box-shadow:0 10px 30px #0000001f}.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin:24px 0 72px}.features div{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:20px}.features h3{margin:0 0 6px;font-size:18px}.features p{margin:0;color:var(--muted)}.doc{padding:32px 0 72px;max-width:720px}.doc h1{font-size:34px;letter-spacing:-.02em}.doc h2{font-size:22px;margin-top:32px}footer{border-top:1px solid var(--border);padding:28px 24px;text-align:center;color:var(--muted);font-size:14px}footer a{color:var(--muted)}