:root {
  --primary: #00a6ff;
  --black: #111111;
  --deep: #1C1C1C;
  --mid: #2B2B2B;
  --light: #F5F5F5;
  --white: #ffffff;
  --text: #242424;
  --muted: #666666;
  --radius: 18px;
  --shadow: 0 14px 35px rgba(17,17,17,.10);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: Arial, Helvetica, sans-serif; color: var(--text); background: var(--light); line-height: 1.65; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
header, .site-header { background: linear-gradient(135deg, var(--primary), #0079c8); color: var(--white); position: sticky; top: 0; z-index: 20; box-shadow: 0 8px 22px rgba(0,0,0,.12); }
.container { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.header-wrap { display: flex; align-items: center; justify-content: space-between; min-height: 72px; gap: 16px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: .4px; }
.logo img { width: 46px; height: 46px; object-fit: contain; border-radius: 14px; background: rgba(255,255,255,.16); padding: 5px; }
.logo span { font-size: 1.25rem; }
nav { display: flex; align-items: center; gap: 8px; }
nav a { padding: 10px 12px; border-radius: 999px; font-weight: 700; font-size: .94rem; }
nav a:hover { background: rgba(255,255,255,.18); }
.main-nav { display: none; }
.mobile-nav { display: flex; }
.hero, .banner { background: radial-gradient(circle at top left, rgba(0,166,255,.28), transparent 34%), linear-gradient(135deg, #111111, #1C1C1C 55%, #0b3c57); color: var(--white); padding: 42px 0; }
.hero-grid { display: grid; gap: 26px; align-items: center; }
.hero h1, .banner h1 { font-size: clamp(2rem, 8vw, 4.2rem); line-height: 1.08; margin: 0 0 16px; letter-spacing: -.04em; }
.lead { color: rgba(255,255,255,.86); font-size: 1.05rem; margin: 0 0 22px; }
.tags { display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0 0; }
.tag { background: rgba(0,166,255,.16); border: 1px solid rgba(255,255,255,.18); color: var(--white); padding: 9px 12px; border-radius: 999px; font-size: .9rem; }
.btn { display: inline-flex; align-items: center; justify-content: center; background: var(--primary); color: var(--white); border: 0; border-radius: 999px; padding: 13px 22px; font-weight: 800; box-shadow: 0 10px 22px rgba(0,166,255,.30); transition: transform .18s ease, box-shadow .18s ease; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 16px 28px rgba(0,166,255,.35); }
.hero-card { background: rgba(255,255,255,.10); border: 1px solid rgba(255,255,255,.14); border-radius: 28px; padding: 18px; box-shadow: var(--shadow); }
.hero-card img { border-radius: 24px; margin: 0 auto; }
section { padding: 42px 0; }
.section-title { font-size: clamp(1.55rem, 4vw, 2.35rem); margin: 0 0 14px; color: var(--black); letter-spacing: -.025em; }
.section-intro { color: var(--muted); max-width: 780px; margin: 0 0 24px; }
.grid { display: grid; gap: 18px; }
.card { background: var(--white); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); border: 1px solid rgba(17,17,17,.06); }
.card h2, .card h3 { color: var(--black); margin-top: 0; line-height: 1.25; }
.card p:last-child { margin-bottom: 0; }
.notice { background: #e9f7ff; border-left: 5px solid var(--primary); border-radius: var(--radius); padding: 18px; color: #163447; box-shadow: 0 8px 22px rgba(0,0,0,.06); }
.faq { display: grid; gap: 14px; }
.faq-item { background: var(--white); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); }
.faq-item h2, .faq-item h3 { margin: 0 0 8px; color: var(--black); font-size: 1.08rem; }
.page-hero { padding: 46px 0; background: linear-gradient(135deg, #111111, #164a64); color: var(--white); }
.page-hero h1 { margin: 0 0 12px; font-size: clamp(2rem, 7vw, 3.6rem); line-height: 1.1; }
.breadcrumbs { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 16px; color: rgba(255,255,255,.76); font-size: .94rem; }
.list { padding-left: 20px; }
.list li { margin: 8px 0; }
.cta-band { background: var(--deep); color: var(--white); border-radius: 28px; padding: 26px; display: grid; gap: 16px; align-items: center; box-shadow: var(--shadow); }
.footer { background: linear-gradient(135deg, var(--primary), #0074b7); color: var(--white); padding: 38px 0 18px; }
.footer-grid { display: grid; gap: 22px; }
.footer a { display: block; color: var(--white); margin: 6px 0; opacity: .92; }
.footer p { color: rgba(255,255,255,.88); }
.footer-brand { font-size: 1.6rem; font-weight: 900; margin-bottom: 8px; }
.copyright { border-top: 1px solid rgba(255,255,255,.22); margin-top: 24px; padding-top: 16px; color: rgba(255,255,255,.78); font-size: .9rem; }
@media (min-width: 768px) {
  .main-nav { display: flex; }
  .mobile-nav { display: none; }
  .hero, .banner { padding: 70px 0; }
  .hero-grid { grid-template-columns: 1.05fr .95fr; }
  .grid.two { grid-template-columns: repeat(2, 1fr); }
  .grid.three { grid-template-columns: repeat(3, 1fr); }
  .cta-band { grid-template-columns: 1fr auto; }
  .footer-grid { grid-template-columns: 1.4fr .7fr 1fr; }
}
@media (min-width: 1024px) {
  section { padding: 58px 0; }
  .card { padding: 28px; }
  nav a { padding: 11px 16px; }
}