:root{color-scheme:light;--ink:#152238;--muted:#53627a;--line:#dce3ed;--accent:#1469de;--paper:#fff;--background:#f7f9fc}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--background);font:16px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:var(--accent);text-underline-offset:3px;overflow-wrap:anywhere}a:hover{text-decoration-thickness:2px}a:focus-visible,video:focus-visible{outline:3px solid #75b0ff;outline-offset:4px;border-radius:4px}.header{max-width:1020px;margin:auto;padding:23px 30px;display:flex;gap:24px;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);font-size:17px;font-weight:650;line-height:1.35;white-space:nowrap}.brand img{border-radius:10px}.brand small{display:block;color:var(--muted);font-size:12px;font-weight:500}.header nav{display:flex;gap:20px;align-items:center;flex-wrap:wrap;font-size:14px}.header nav a{text-decoration:none}.header .language{color:var(--muted);border-left:1px solid var(--line);padding-left:18px}main{max-width:900px;margin:0 auto;padding:54px 30px 70px;min-height:70vh}h1{font-size:clamp(30px,4.5vw,43px);letter-spacing:-.035em;line-height:1.18;margin:8px 0 22px;font-weight:730}h2{font-size:22px;line-height:1.35;letter-spacing:-.02em;margin:37px 0 12px}p{margin:12px 0;color:var(--muted)}.eyebrow{font-size:12px;letter-spacing:.08em;text-transform:uppercase;font-weight:750;color:var(--accent)}.lead{font-size:19px;line-height:1.65;max-width:740px}.updated,.small{font-size:13px}.updated{border-bottom:1px solid var(--line);padding-bottom:24px;margin-bottom:29px}.actions{display:flex;flex-wrap:wrap;gap:12px;margin:25px 0}.button{display:inline-block;background:var(--accent);color:white;padding:10px 18px;border:1px solid var(--accent);border-radius:10px;text-decoration:none;font-size:15px;font-weight:650}.button.secondary{background:var(--paper);color:var(--accent);border-color:#c8d9ee}.button:hover{text-decoration:none;filter:brightness(.96)}ol{padding-left:24px;color:var(--muted)}li{padding-left:5px;margin:12px 0}.notice{background:#edf4fe;border:1px solid #d1e2fa;border-radius:12px;padding:19px 22px;margin-top:28px}.notice h2{font-size:19px;margin:0 0 8px}.notice p{margin:0}video{display:block;width:100%;aspect-ratio:16/9;margin:30px 0 22px;border-radius:12px;background:#111c30;box-shadow:0 12px 34px #16253b12}code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.85em;overflow-wrap:anywhere}.checksum{word-break:break-all}footer{max-width:1020px;margin:auto;padding:22px 30px 32px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}footer span{padding:0 8px}.skip{position:absolute;left:15px;top:-90px;background:white;padding:10px;z-index:10}.skip:focus{top:10px}@media(max-width:700px){.header{padding:18px 20px;align-items:flex-start;flex-direction:column;gap:17px}.header nav{gap:16px;font-size:13px}.header .language{padding-left:14px}main{padding:35px 20px 52px}.lead{font-size:17px}h2{font-size:21px}.notice{padding:17px}footer{padding:20px}.actions .button{flex-grow:1;text-align:center}}