:root{--bg:#f7f8fa;--card:#fff;--ink:#16181d;--muted:#6b7280;--line:#e7e9ee;--accent:#1f6feb;--accent-soft:#eaf1ff}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.6}
a{color:inherit;text-decoration:none}
.top{background:var(--card);border-bottom:1px solid var(--line)}
.bar{max-width:1080px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;gap:28px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;letter-spacing:-.2px}
.logo i{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,#1f6feb,#4f9bff);display:inline-block}
nav{display:flex;gap:20px;flex-wrap:wrap}
nav a{color:var(--muted);font-size:15px}
nav a:hover,nav a.on{color:var(--accent)}
.wrap{max-width:1080px;margin:0 auto;padding:28px 20px 56px}
.lead{display:grid;grid-template-columns:1.6fr 1fr;gap:20px;margin-bottom:26px}
@media(max-width:820px){.lead{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden}
.card .pad{padding:20px}
.hero{padding:28px}
.tag{display:inline-block;font-size:12px;text-transform:uppercase;letter-spacing:.6px;color:var(--accent);background:var(--accent-soft);padding:4px 10px;border-radius:999px;margin-bottom:12px}
h1{font-size:30px;margin:6px 0 10px;letter-spacing:-.4px}
h2{font-size:21px;margin:0 0 10px}
h3{font-size:17px;margin:0 0 8px}
p{color:#3b4049;margin:0 0 12px}
.muted{color:var(--muted);font-size:14px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:820px){.grid{grid-template-columns:1fr}}
.item{padding:18px;border:1px solid var(--line);border-radius:14px;background:var(--card)}
.item h3{margin-bottom:6px}
.side li{list-style:none;padding:12px 0;border-bottom:1px dashed var(--line)}
.side ul{margin:0;padding:0}
.side li:last-child{border:0}
article p{font-size:17px}
.foot{border-top:1px solid var(--line);background:var(--card);margin-top:40px}
.foot .bar{display:block;color:var(--muted);font-size:14px}
.foot a{color:var(--muted)}
form{display:grid;gap:12px;max-width:440px}
input,textarea,button{font:inherit;padding:11px 13px;border:1px solid var(--line);border-radius:10px;background:#fff}
button{background:var(--accent);color:#fff;border:0;cursor:pointer;font-weight:600}
.note{background:var(--accent-soft);border-radius:12px;padding:14px;color:#22406e;font-size:14px}