:root{--bg:#f6f8fb;--card:#fff;--ink:#14213d;--muted:#5b6478;--brand:#0f766e;--brand-2:#f59e0b;--line:#e3e8ef}
*{box-sizing:border-box}
html{color-scheme:light}
body{margin:0;font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--brand)}
.wrap{max-width:960px;margin:0 auto;padding:0 20px}
header{background:var(--card);border-bottom:1px solid var(--line)}
header .wrap{display:flex;align-items:center;gap:14px;min-height:64px}
header img{width:36px;height:36px;border-radius:9px}
header b{font-size:18px}
header nav{margin-left:auto;display:flex;gap:18px;flex-wrap:wrap}
header nav a{text-decoration:none;color:var(--muted);font-weight:500}
.hero{padding:56px 0 32px}
.hero h1{font-size:clamp(30px,5vw,44px);line-height:1.15;margin:0 0 12px}
.hero p{font-size:18px;color:var(--muted);max-width:620px;margin:0}
.apps{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;margin:32px 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px}
.card img{width:100%;max-width:280px;border-radius:12px;display:block;margin-bottom:16px}
.card h2{margin:0 0 6px;font-size:22px}
.card .sub{color:var(--muted);margin:0 0 14px}
.card ul{padding-left:20px;margin:0}
.card li{margin:4px 0}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin:16px 0 40px}
.steps div{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px}
.steps b{display:block;color:var(--brand);margin-bottom:4px}
.badge{display:inline-block;background:#fff7e6;color:#92400e;border:1px solid #fcd9a0;border-radius:999px;padding:2px 10px;font-size:13px;margin-bottom:10px}
main.doc{padding:40px 0 60px}
main.doc h1{font-size:32px;margin:0 0 4px}
main.doc .meta{color:var(--muted);margin:0 0 28px}
main.doc h2{font-size:21px;margin:32px 0 8px}
main.doc table{border-collapse:collapse;width:100%;margin:10px 0}
main.doc td,main.doc th{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
main.doc th{background:#eef2f7}
.note{background:#ecfdf5;border:1px solid #a7f3d0;border-radius:12px;padding:14px 16px}
footer{border-top:1px solid var(--line);padding:28px 0;color:var(--muted);font-size:14px}
footer .wrap{display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between}
footer nav{display:flex;flex-wrap:wrap;gap:16px}
.tbl{overflow-x:auto}