:root{
  --bg:#ffffff;
  --text:#101828;
  --muted:#5f6b7a;
  --line:#e5e7eb;
  --blue:#2563eb;
  --blue2:#0ea5e9;
}
*{box-sizing:border-box}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}
.container{width:min(1120px,calc(100% - 32px));margin:auto}
.topbar{background:#f8fafc;border-bottom:1px solid var(--line)}
.topbar-inner{display:flex;justify-content:space-between;align-items:center;padding:8px 0;font-size:14px}
.navbar{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:12px}
.brand{font-weight:700}
.nav-links{display:flex;gap:10px;align-items:center}
.nav-links a{color:var(--text);text-decoration:none;padding:8px 10px;border-radius:10px}
.nav-links a:hover{background:#f3f4f6}
.menu-btn{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 10px}
.hero{padding:38px 0;background:linear-gradient(180deg,#ffffff,#f8fbff)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:center}
.tag{display:inline-block;background:#eff6ff;color:#1d4ed8;border:1px solid #bfdbfe;padding:8px 12px;border-radius:999px;font-size:13px}
.hero h1{font-size:42px;line-height:1.05;margin:14px 0 10px}
.hero h1 span{color:#1d4ed8}
.hero p{color:var(--muted);font-size:17px;max-width:640px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:16px}
.btn{display:inline-block;background:linear-gradient(90deg,var(--blue),var(--blue2));color:#fff;text-decoration:none;border:none;border-radius:12px;padding:12px 16px;font-weight:700;cursor:pointer}
.btn-small{padding:8px 12px;font-size:13px}
.btn-outline{background:#fff;color:var(--text);border:1px solid var(--line)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.chips span{background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 10px;font-size:13px}
.hero-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:10px;box-shadow:0 8px 24px rgba(0,0,0,.06)}
.hero-card img{width:100%;height:auto;display:block;border-radius:12px}
.section{padding:54px 0}
.section-soft{background:#f8fafc;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section h2{margin:0;font-size:30px}
.subtitle{margin:8px 0 22px;color:var(--muted)}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px}
.card h3{margin:0 0 8px;font-size:18px}
.card p{margin:0;color:var(--muted)}
.promo-layout{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.promo-box{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;display:flex;flex-direction:column}
.promo-box img{width:100%;height:auto;display:block}
.promo-content{padding:14px}
.promo-content h3{margin:0 0 10px}
.promo-content ul{margin:0 0 14px 18px;padding:0}
.promo-content li{margin:6px 0}
.contact-wrap{display:grid;grid-template-columns:1.2fr .8fr;gap:16px}
.contact-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px}
.contact-card h3{margin-top:0}
.contact-card p{color:var(--muted)}
#copyMsg{display:block;margin-top:8px;color:#1d4ed8}
.footer{border-top:1px solid var(--line);padding:18px 0;background:#fff}
.footer-inner{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:var(--muted)}

@media (max-width:900px){
  .hero-grid,.cards,.promo-layout,.contact-wrap{grid-template-columns:1fr}
  .hero h1{font-size:32px}
  .nav-links{display:none;position:absolute;top:58px;left:16px;right:16px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:8px;flex-direction:column;align-items:stretch}
  .nav-links.show{display:flex}
  .menu-btn{display:block}
}