:root{
  --bg:#ffffff;--text:#151515;--muted:#6b7280;--line:#e5e7eb;
  --soft:#f7f7f8;--accent:#111827;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
a{text-decoration:none;color:inherit}
.container{width:min(1120px,92%);margin:auto}
header{position:sticky;top:0;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);z-index:10}
.nav{height:70px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{font-weight:800;font-size:21px;letter-spacing:-.4px}
.navlinks{display:flex;gap:18px;font-size:14px;color:#4b5563}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 18px;border-radius:10px;background:#111827;color:#fff;font-weight:700}
.hero{padding:84px 0 64px}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.badge{display:inline-block;border:1px solid var(--line);background:var(--soft);padding:7px 11px;border-radius:999px;font-size:13px;color:#4b5563;margin-bottom:18px}
h1{font-size:clamp(38px,6vw,68px);line-height:1.02;letter-spacing:-2.5px;margin:0 0 18px}
.hero p{font-size:18px;color:var(--muted);max-width:720px}
.visual{background:linear-gradient(145deg,#fafafa,#f0f1f3);border:1px solid var(--line);border-radius:24px;min-height:340px;padding:30px;display:grid;place-items:center}
.visual-box{width:100%;background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;box-shadow:0 18px 50px rgba(0,0,0,.05)}
.visual-title{font-size:14px;color:var(--muted);margin-bottom:8px}
.visual-number{font-size:44px;font-weight:900;letter-spacing:-1.5px}
.keyword-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.keyword{border:1px solid var(--line);background:#fff;border-radius:999px;padding:7px 10px;font-size:13px;color:#374151}
section{padding:64px 0}
.section-title{font-size:32px;letter-spacing:-1px;margin:0 0 12px}
.section-desc{color:var(--muted);margin:0 0 28px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{border:1px solid var(--line);border-radius:16px;padding:24px;background:#fff}
.card h3{margin:0 0 8px;font-size:19px}
.card p{margin:0;color:var(--muted);font-size:15px}
.info{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding:16px 0}
.faq summary{font-weight:700;cursor:pointer}
.faq p{color:var(--muted);margin:8px 0 0}
footer{border-top:1px solid var(--line);padding:28px 0;color:var(--muted);font-size:14px}
@media(max-width:800px){
 .hero-grid,.grid3{grid-template-columns:1fr}
 .navlinks{display:none}
 .hero{padding-top:56px}
 .visual{min-height:240px}
}