:root{--brand:#1d4ed8;--ink:#1c1c20;--dim:#5c5c66;--bg:#fafafa;--line:#e4e4ea}
*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg)}
header{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--line);z-index:5}
.bar{max-width:1040px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 20px;flex-wrap:wrap}
.logo{font-weight:800;font-size:19px;letter-spacing:.01em;color:var(--ink);text-decoration:none}
nav{display:flex;gap:4px;flex-wrap:wrap}
nav a{color:var(--dim);text-decoration:none;font-size:14px;padding:8px 12px;border-radius:8px}
nav a:hover{background:#f0f0f4;color:var(--ink)}
nav a.on{background:var(--brand);color:#fff}
.hero{background:linear-gradient(160deg,#eef2ff,#fff);border-bottom:1px solid var(--line)}
.hero .in{max-width:1040px;margin:0 auto;padding:72px 20px}
h1{margin:0 0 10px;font-size:clamp(30px,5vw,46px);line-height:1.1}
.lede{margin:0 0 24px;max-width:560px;color:var(--dim);font-size:18px;line-height:1.6}
.cta{display:inline-block;background:var(--brand);color:#fff;text-decoration:none;font-weight:600;padding:13px 22px;border-radius:10px}
main{max-width:1040px;margin:0 auto;padding:48px 20px}
h2{margin:0 0 14px;font-size:26px}
p{line-height:1.7;color:var(--dim)}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin:24px 0}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px}
.card h3{margin:0 0 8px;font-size:18px}
.ph{background:#eceef4;border:1px dashed #c9cdd8;border-radius:12px;min-height:170px;display:flex;align-items:center;justify-content:center;color:#9aa0ad;font-size:13px}
footer{border-top:1px solid var(--line);background:#fff;margin-top:48px}
footer .in{max-width:1040px;margin:0 auto;padding:22px 20px;font-size:13px;color:var(--dim)}
@media(max-width:640px){.bar{justify-content:center}}