:root {
  --primary: #40C6F2;
  --black: #111111;
  --dark: #1C1C1C;
  --mid: #2B2B2B;
  --light: #F5F5F5;
  --white: #ffffff;
  --shadow: 0 18px 45px rgba(17,17,17,.10);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin:0; font-family: Arial, Helvetica, sans-serif; color:var(--black); background:var(--light); line-height:1.65; }
a { color:inherit; text-decoration:none; }
img { max-width:100%; height:auto; display:block; }
header, section, footer { width:100%; }
.container { width:min(1120px, calc(100% - 32px)); margin:0 auto; }
.site-header { position:sticky; top:0; z-index:50; background:rgba(255,255,255,.96); border-bottom:1px solid rgba(17,17,17,.08); backdrop-filter: blur(10px); }
.header-inner { min-height:78px; display:grid; grid-template-columns:48px 1fr; align-items:center; gap:12px; padding:10px 0 6px; }
.logo { justify-self:center; display:flex; align-items:center; }
.logo img { width:132px; max-height:54px; object-fit:contain; }
.main-nav, .header-actions { display:none; }
.mobile-menu-toggle { width:44px; height:44px; border:0; border-radius:14px; background:var(--black); color:#fff; font-size:24px; cursor:pointer; }
.mobile-nav { display:none; width:min(1120px, calc(100% - 32px)); margin:0 auto 10px; padding:14px; border-radius:18px; background:var(--white); box-shadow:var(--shadow); gap:8px; }
.mobile-nav.is-open { display:grid; }
.mobile-nav a { padding:10px 12px; border-radius:12px; background:var(--light); font-weight:700; }
.mobile-actions { display:flex; justify-content:center; gap:10px; padding:0 16px 14px; }
.btn { display:inline-flex; align-items:center; justify-content:center; min-height:46px; padding:12px 22px; border-radius:999px; background:linear-gradient(135deg, var(--primary), #159ad0); color:#fff; font-weight:800; box-shadow:0 12px 25px rgba(64,198,242,.28); border:0; }
.btn-dark { background:linear-gradient(135deg, var(--mid), var(--black)); }
.btn-small { min-height:40px; padding:9px 18px; font-size:14px; }
.hero, .banner { background:linear-gradient(135deg, var(--black) 0%, #16313a 48%, var(--primary) 100%); color:#fff; padding:54px 0; }
.hero-grid { display:grid; gap:28px; align-items:center; }
.hero h1 { font-size:clamp(34px, 8vw, 62px); line-height:1.05; margin:0 0 16px; letter-spacing:-.04em; }
.hero p { font-size:18px; color:rgba(255,255,255,.88); margin:0 0 22px; }
.tags { display:flex; flex-wrap:wrap; gap:10px; margin-top:22px; }
.tag { background:rgba(255,255,255,.16); border:1px solid rgba(255,255,255,.22); color:#fff; border-radius:999px; padding:8px 12px; font-size:14px; }
.hero-card { background:rgba(255,255,255,.92); border-radius:28px; padding:18px; box-shadow:var(--shadow); }
section { padding:56px 0; }
.section-title { max-width:820px; margin:0 0 24px; }
.section-title h2, .section-title h1 { margin:0 0 10px; font-size:clamp(28px, 5vw, 44px); line-height:1.15; letter-spacing:-.03em; }
.section-title p { margin:0; color:#555; }
.grid { display:grid; gap:18px; }
.grid-2, .grid-3 { grid-template-columns:1fr; }
.card { background:var(--white); border-radius:20px; padding:22px; box-shadow:var(--shadow); border:1px solid rgba(17,17,17,.06); }
.card h3 { margin-top:0; margin-bottom:10px; }
.card p:last-child { margin-bottom:0; }
.notice { background:#fff; border-left:6px solid var(--primary); border-radius:18px; padding:18px; box-shadow:var(--shadow); }
.faq { display:grid; gap:14px; }
.faq details { background:#fff; border-radius:18px; padding:18px 20px; box-shadow:var(--shadow); }
.faq summary { cursor:pointer; font-weight:800; }
.list { padding-left:20px; }
.cta-box { background:var(--black); color:#fff; border-radius:28px; padding:30px; display:grid; gap:16px; align-items:center; }
.footer { background:var(--black); color:#fff; padding:44px 0; }
.footer-grid { display:grid; gap:26px; }
.footer a { display:block; color:rgba(255,255,255,.86); margin:8px 0; }
.footer p { color:rgba(255,255,255,.76); }
.footer-logo img { width:130px; margin-bottom:12px; }
@media (min-width: 768px) {
  .header-inner { grid-template-columns:170px 1fr auto; min-height:82px; }
  .mobile-menu-toggle, .mobile-nav, .mobile-actions { display:none !important; }
  .logo { justify-self:start; }
  .logo img { width:150px; }
  .main-nav { display:flex; justify-content:center; gap:8px; }
  .main-nav a { padding:10px 14px; border-radius:999px; font-weight:700; color:#222; }
  .main-nav a:hover { background:var(--light); }
  .header-actions { display:flex; gap:10px; justify-content:flex-end; }
  .hero-grid { grid-template-columns:1.05fr .95fr; }
  .grid-2 { grid-template-columns:repeat(2, 1fr); }
  .grid-3 { grid-template-columns:repeat(3, 1fr); }
  .cta-box { grid-template-columns:1fr auto; }
  .footer-grid { grid-template-columns:1.4fr .8fr 1.2fr; }
}
@media (min-width: 1024px) {
  .container { width:min(1180px, calc(100% - 64px)); }
  .header-inner { gap:28px; }
  section { padding:70px 0; }
  .hero { padding:72px 0; }
  .logo img { width:164px; }
}