:root{--ink:#1f2630;--muted:#6b7480;--bg:#f6f7f9;--card:#fff;--accent:#2f6d8a}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
color:var(--ink);background:var(--bg);line-height:1.6}
.wrap{max-width:860px;margin:0 auto;padding:0 20px}
header{padding:28px 0;border-bottom:1px solid #e7eaee;background:var(--card)}
header .wrap{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px}
.logo{font-weight:700;font-size:20px;letter-spacing:.2px}
nav a{color:var(--muted);text-decoration:none;margin-left:18px;font-size:15px}
nav a:hover{color:var(--ink)}
.hero{padding:64px 0 36px}
.hero h1{font-size:34px;margin:0 0 12px}
.hero p{font-size:18px;color:var(--muted);max-width:620px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;padding:16px 0 56px}
.card{background:var(--card);border:1px solid #e7eaee;border-radius:12px;padding:20px}
.card h3{margin:0 0 8px;font-size:17px}
.card p{margin:0;color:var(--muted);font-size:15px}
footer{border-top:1px solid #e7eaee;background:var(--card);color:var(--muted);font-size:14px}
footer .wrap{padding:22px 0}
.tag{display:inline-block;background:#eef3f6;color:var(--accent);border-radius:999px;
padding:3px 12px;font-size:13px;margin-bottom:18px}
@media(max-width:560px){.hero h1{font-size:27px}.hero{padding:40px 0 24px}}