:root{--sky:#5FC9E8;--orange:#FF7A3D;--ink:#1D2B36;--muted:#5A6B78;--paper:#FFFFFF;--bg:#F3FAFD;--line:#D9EEF5;--pink:#FF4F9A}
*{box-sizing:border-box}
html{color-scheme:light}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
a{color:#0B7FA6}
header.top{background:linear-gradient(160deg,var(--sky),#3FB3D9);color:#fff}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 20px}
header.top .brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:800;font-size:20px;letter-spacing:.3px}
header.top .brand img{width:36px;height:36px;border-radius:9px;box-shadow:0 2px 6px rgba(0,0,0,.2)}
header.top nav a{color:#fff;text-decoration:none;margin-left:16px;font-weight:600;opacity:.92}
header.top nav a:hover{opacity:1;text-decoration:underline}
.wrap{max-width:900px;margin:0 auto;padding:0 20px}
main.doc{background:var(--paper);margin:28px auto;padding:36px 40px;border-radius:16px;box-shadow:0 6px 24px rgba(30,80,100,.08);max-width:900px}
main.doc h1{margin:0 0 4px;font-size:32px;line-height:1.2}
main.doc .meta{color:var(--muted);margin:0 0 28px}
main.doc h2{margin:32px 0 8px;font-size:22px;padding-top:8px;border-top:1px solid var(--line)}
main.doc h3{margin:20px 0 6px;font-size:17px}
main.doc table{border-collapse:collapse;width:100%;margin:12px 0;font-size:15px}
main.doc th,main.doc td{text-align:left;vertical-align:top;padding:8px 10px;border-bottom:1px solid var(--line)}
main.doc th{background:var(--bg)}
main.doc li{margin:4px 0}
.note{background:#FFF4EC;border-left:4px solid var(--orange);padding:12px 16px;border-radius:8px}
.steps li{margin:8px 0}
footer{color:var(--muted);font-size:14px;text-align:center;padding:24px 20px 40px}
footer a{color:var(--muted);margin:0 8px}
/* landing */
.hero{background:linear-gradient(160deg,var(--sky) 0%,#3FB3D9 60%,#2A9CC4 100%);color:#fff;padding:64px 20px 72px;text-align:center}
.hero img.icon{width:120px;height:120px;border-radius:28px;box-shadow:0 10px 30px rgba(0,0,0,.25)}
.hero h1{font-size:44px;margin:20px 0 8px;letter-spacing:.5px}
.hero p{font-size:20px;max-width:620px;margin:0 auto 28px;opacity:.95}
.badges{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.badge{display:inline-block;background:var(--ink);color:#fff;text-decoration:none;padding:12px 22px;border-radius:12px;font-weight:700;box-shadow:0 4px 14px rgba(0,0,0,.2)}
.badge.soon{background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.5)}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;margin:36px auto}
.card{background:var(--paper);border-radius:16px;padding:22px;box-shadow:0 6px 24px rgba(30,80,100,.08)}
.card h3{margin:0 0 6px;color:var(--orange)}
.card p{margin:0;color:var(--muted)}
@media (max-width:600px){main.doc{padding:24px 18px;margin:16px auto;border-radius:12px}.hero h1{font-size:34px}header.top nav a{margin-left:10px;font-size:14px}}