:root{
  --jj-red:#E21818; --jj-ink:#111111; --jj-surface:#1F1F1F; --jj-bg:#F5F6F7;
}
*{box-sizing:border-box} body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Inter,Arial,sans-serif;color:var(--jj-ink);background:#fff}
.jj-container{max-width:1120px;margin:0 auto;padding:0 20px}
.jj-header{position:sticky;top:0;z-index:50;background:#fffcc0/0;background:rgba(255,255,255,.8);backdrop-filter:saturate(140%) blur(8px);border-bottom:1px solid #e5e7eb}
.jj-header__inner{height:64px;display:flex;align-items:center;justify-content:space-between}
.jj-brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:inherit}
.jj-logo{height:36px;width:auto}
.jj-wordmark{font-weight:800;font-size:20px}
.jj-tag{display:block;color:#6b7280;font-size:12px}
.jj-nav{display:flex;gap:20px;align-items:center}
.jj-nav a{color:inherit;text-decoration:none;font-weight:600}
.jj-btn{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:12px;border:1px solid #e5e7eb;text-decoration:none;font-weight:700}
.jj-btn--primary{background:var(--jj-red);color:#fff;border-color:transparent}
.jj-btn--ghost{background:#fff}
.jj-hero{background:linear-gradient(180deg,#fff,#f8f9fb)}
.jj-hero__grid{display:grid;grid-template-columns:1fr;gap:32px;padding:48px 0}
@media(min-width:900px){.jj-hero__grid{grid-template-columns:1.1fr .9fr;padding:80px 0}}
.jj-h1{font-size:40px;line-height:1.1;margin:0;font-weight:900}
@media(min-width:640px){.jj-h1{font-size:52px}}
.jj-lead{margin:16px 0 0;color:#4b5563;font-size:18px}
.jj-actions{margin-top:20px;display:flex;gap:12px;flex-wrap:wrap}
.jj-bullets{margin-top:16px;color:#6b7280;font-size:14px;display:flex;align-items:center;gap:18px}
.jj-dot{display:inline-block;width:8px;height:8px;border-radius:999px;background:var(--jj-red)}
.jj-hero__image .jj-hero-img{width:100%;height:auto;border-radius:24px;box-shadow:0 20px 40px rgba(0,0,0,.08);border:1px solid rgba(0,0,0,.06);object-fit:cover;aspect-ratio:4/3}
.jj-steps{padding:64px 0;background:#fff}
.jj-h2{font-size:32px;font-weight:900;margin:0}
.jj-h3{font-size:20px;font-weight:800;margin:6px 0}
.jj-muted{color:#6b7280}
.jj-steps__grid{display:grid;gap:20px;margin-top:28px}
@media(min-width:900px){.jj-steps__grid{grid-template-columns:repeat(3,1fr)}}
.jj-card{border:1px solid #e5e7eb;border-radius:16px;padding:20px;background:#fff;box-shadow:0 6px 16px rgba(0,0,0,.04)}
.jj-step-num{width:40px;height:40px;border-radius:999px;background:#111;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:12px}
.jj-footer{padding:28px 0;border-top:1px solid #e5e7eb;background:#fff;color:#6b7280}