:root{color-scheme:light;--bg:#fbfbfd;--text:#1d1d1f;--text-dim:#6e6e73;--accent:#0176d3;--accent-soft:rgba(1,118,211,.08);--border:rgba(0,0,0,.08);--card-bg:rgba(255,255,255,.72);--shadow:0 8px 32px rgba(0,0,0,.06);--blob-blue:rgba(1,118,211,.10);--blob-purple:rgba(123,94,167,.10);--blob-yellow:rgba(240,180,41,.12)}[data-theme=dark]{color-scheme:dark;--bg:#0a0a0f;--text:#f5f5f7;--text-dim:#9c9ca6;--accent:#58a6ff;--accent-soft:rgba(88,166,255,.14);--border:rgba(255,255,255,.10);--card-bg:rgba(28,30,40,.7);--shadow:0 8px 32px rgba(0,0,0,.28);--blob-blue:rgba(88,166,255,.14);--blob-purple:rgba(160,130,220,.14);--blob-yellow:rgba(255,200,80,.14)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","Apple SD Gothic Neo",sans-serif;background:var(--bg);color:var(--text);line-height:1.72;-webkit-font-smoothing:antialiased}body:before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(600px 500px at 10% 12%,var(--blob-blue),transparent 60%),radial-gradient(700px 550px at 90% 30%,var(--blob-purple),transparent 60%),radial-gradient(520px 500px at 25% 78%,var(--blob-yellow),transparent 60%);filter:blur(20px)}header{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 76%,transparent);border-bottom:1px solid var(--border);backdrop-filter:saturate(180%) blur(28px)}.header-inner{max-width:1100px;margin:auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{display:flex;align-items:center;gap:10px}.brand-icon{width:32px;height:32px;border-radius:8px;box-shadow:0 1px 2px #0002,0 0 12px #0176d326}.brand-logo{height:22px;width:auto}.header-actions{display:flex;align-items:center;gap:8px}.header-link,.theme-button{border:1px solid var(--border);background:transparent;color:var(--text);font:500 13px inherit;padding:7px 12px;border-radius:8px;text-decoration:none;cursor:pointer}.header-link:hover,.theme-button:hover{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}.header-link.active{color:var(--accent);background:var(--accent-soft);border-color:var(--accent)}.wrap{max-width:780px;margin:auto;padding:76px 24px 92px}.eyebrow{color:var(--accent);font-size:13px;font-weight:750;letter-spacing:.09em;text-transform:uppercase}h1{font-size:clamp(38px,6vw,62px);line-height:1.08;letter-spacing:-.048em;margin:12px 0 20px}h2{font-size:29px;line-height:1.24;letter-spacing:-.025em;margin:54px 0 14px}h3{font-size:20px;line-height:1.35;margin:26px 0 8px}.lead{font-size:21px;line-height:1.58;color:var(--text-dim);max-width:720px}.meta{color:var(--text-dim);font-size:14px;margin:28px 0 44px}.card{background:var(--card-bg);border:1px solid var(--border);border-radius:16px;padding:25px;margin:18px 0;box-shadow:var(--shadow)}.card h3{margin-top:0}.card p{margin:0;color:var(--text-dim)}.steps{padding-left:23px}.steps li{padding-left:8px;margin:13px 0}.video-wrap{margin:28px 0 10px;padding:10px;background:var(--card-bg);border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow)}video{display:block;width:100%;border-radius:11px}.caption{font-size:13px;color:var(--text-dim);margin:8px 2px 0}.related{border-top:1px solid var(--border);margin-top:64px;padding-top:25px;color:var(--text-dim)}a{color:var(--accent);text-underline-offset:3px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px;margin-top:38px}.grid a{display:block;padding:21px;background:var(--card-bg);border:1px solid var(--border);border-radius:15px;color:var(--text);text-decoration:none;box-shadow:var(--shadow);transition:transform .15s,border-color .15s}.grid a:hover{transform:translateY(-2px);border-color:var(--accent)}.grid strong,.grid span{display:block}.grid span{color:var(--text-dim);font-size:14px;line-height:1.45;margin-top:6px}@media(max-width:650px){.header-inner{padding:12px 16px}.header-link:not(.active){display:none}.wrap{padding:54px 20px 70px}.theme-button{padding:7px 10px}h2{margin-top:42px}}