:root{font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;color:#ecf2fa;background:#0b1421;color-scheme:dark}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 85% 10%,#213a50 0,transparent 55%)}main{max-width:1000px;margin:auto;padding:38px 28px}a{color:inherit}.brand{display:inline-flex;align-items:center;gap:14px;text-decoration:none;font-size:30px;letter-spacing:-1px;font-weight:800;color:#e5c68b}.brand span{color:#c9d6e5;font-size:14px;letter-spacing:1px;font-weight:500}.hero{padding:68px 0 44px}.tag{color:#e1c188;font-size:12px;font-weight:700;letter-spacing:3px}h1{font-size:clamp(40px,7vw,68px);line-height:1.2;letter-spacing:-2px;margin:22px 0}p{color:#afc0d4;line-height:1.8}.intro{max-width:580px;font-size:17px}.download-card{display:grid;grid-template-columns:1fr auto;align-items:center;gap:8px 24px;padding:28px;margin-top:36px;background:#16263b;border:1px solid #3b536c;border-radius:18px}.download-card h2{font-size:20px;margin:0}.download-card p{margin:8px 0 0}.download-button{display:flex;justify-content:center;align-items:center;gap:28px;background:#dfc087;color:#152235;padding:18px 26px;border-radius:10px;font-weight:700;text-decoration:none;font-size:17px;min-height:58px}.download-button:hover{background:#efd49f}.download-button:focus-visible{outline:3px solid white;outline-offset:4px}.caption{grid-column:1/-1;font-size:12px}.steps{border-top:1px solid #2b3d52;padding-top:30px}.steps>h2{font-size:20px;margin:0 0 26px}ol{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;list-style:none;padding:0;margin:0}li>span{font-size:13px;letter-spacing:2px;color:#d9bb83}h3{font-size:16px;margin:15px 0 8px}li p{font-size:14px;margin:0}footer{margin-top:48px;padding-top:24px;border-top:1px solid #2b3d52;font-size:12px;line-height:2;color:#94a9c0}footer a{color:#c9d6e5}@media(max-width:600px){main{padding:26px 20px}.hero{padding-top:46px}.download-card{grid-template-columns:1fr;padding:22px}.download-button{margin-top:12px}ol{grid-template-columns:1fr;gap:24px}li{display:flex;gap:20px}li>span{padding-top:4px}h3{margin-top:0}.intro{font-size:15px}}

[hidden]{display:none!important}#download-progress{grid-column:1/-1;margin-top:12px}progress{width:100%;height:8px;accent-color:#dfc087}#download-status{font-size:13px}#download[aria-disabled="true"]{opacity:.7;cursor:wait}.caption a{color:#dfc087}