:root { --primary:#64AAFA; --black:#111111; --dark:#1C1C1C; --mid:#2B2B2B; --light:#F5F5F5; --white:#ffffff; }
* { box-sizing: border-box; }
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, .site-header { background:linear-gradient(135deg, var(--dark), var(--primary)); color:#fff; position:sticky; top:0; z-index:10; box-shadow:0 8px 24px rgba(0,0,0,.12); }
.container { width:min(1120px, calc(100% - 32px)); margin:0 auto; }
.header-inner { display:flex; align-items:center; justify-content:space-between; padding:14px 0; gap:18px; }
.logo { display:flex; align-items:center; gap:10px; font-weight:800; letter-spacing:.6px; }
.logo img { width:42px; height:42px; border-radius:12px; background:#fff; object-fit:cover; }
nav, .nav { display:none; align-items:center; gap:18px; font-weight:700; }
.nav a, .mobile-nav a, .footer-nav a { opacity:.95; }
.nav a:hover, .mobile-nav a:hover, .footer-nav a:hover { opacity:1; text-decoration:underline; }
.mobile-nav { display:grid; grid-template-columns:repeat(4,1fr); gap:8px; width:100%; padding:0 0 12px; font-size:13px; text-align:center; }
.mobile-nav a { background:rgba(255,255,255,.14); border:1px solid rgba(255,255,255,.18); padding:8px 6px; border-radius:999px; }
.hero, .banner { background:radial-gradient(circle at top right, rgba(100,170,250,.28), transparent 45%), linear-gradient(135deg, #111, #20242d); color:#fff; padding:48px 0; }
.hero-grid { display:grid; gap:28px; align-items:center; }
.hero h1, .page-hero h1 { font-size:clamp(30px, 7vw, 56px); line-height:1.08; margin:0 0 16px; }
.hero p, .page-hero p { color:rgba(255,255,255,.84); margin:0 0 18px; }
.tags { display:flex; flex-wrap:wrap; gap:10px; margin:22px 0; }
.tag { background:rgba(100,170,250,.18); border:1px solid rgba(100,170,250,.45); color:#fff; border-radius:999px; padding:8px 12px; font-size:14px; }
.hero-media { background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.12); border-radius:24px; padding:18px; box-shadow:0 24px 70px rgba(0,0,0,.25); }
section { padding:34px 0; }
.section-title { font-size:clamp(24px, 4vw, 36px); margin:0 0 14px; }
.grid { display:grid; gap:18px; }
.card { background:#fff; border-radius:18px; padding:22px; box-shadow:0 10px 30px rgba(17,17,17,.08); border:1px solid rgba(17,17,17,.06); }
.card h2, .card h3 { margin-top:0; color:var(--dark); }
.card p:last-child { margin-bottom:0; }
.btn { display:inline-flex; align-items:center; justify-content:center; background:var(--primary); color:#07111f; font-weight:800; border-radius:999px; padding:13px 20px; border:0; box-shadow:0 12px 26px rgba(100,170,250,.28); }
.btn:hover { filter:brightness(.96); transform:translateY(-1px); }
.notice { background:#eef6ff; border-left:5px solid var(--primary); color:#15243a; padding:18px; border-radius:18px; box-shadow:0 8px 24px rgba(17,17,17,.06); }
.faq { display:grid; gap:14px; }
.faq details { background:#fff; border-radius:16px; padding:18px; box-shadow:0 8px 24px rgba(17,17,17,.06); }
.faq summary { cursor:pointer; font-weight:800; }
.page-hero { background:linear-gradient(135deg, var(--dark), var(--mid)); color:#fff; padding:42px 0; }
.list { padding-left:20px; }
.inline-links { display:flex; flex-wrap:wrap; gap:10px; margin-top:18px; }
.inline-links a { color:#0b4f91; font-weight:700; }
.footer { background:linear-gradient(135deg, var(--dark), var(--primary)); color:#fff; padding:34px 0; margin-top:28px; }
.footer-grid { display:grid; gap:20px; }
.footer-brand { font-size:24px; font-weight:900; margin-bottom:8px; }
.footer-nav { display:flex; flex-wrap:wrap; gap:14px; }
.footer-note { background:rgba(255,255,255,.12); border-radius:18px; padding:16px; }
@media (min-width: 768px) {
    .nav { display:flex; }
    .mobile-nav { display:none; }
    .hero-grid { grid-template-columns:1.1fr .9fr; }
    .grid.two { grid-template-columns:repeat(2,1fr); }
    .grid.three { grid-template-columns:repeat(3,1fr); }
    .footer-grid { grid-template-columns:1.2fr .8fr 1.2fr; align-items:start; }
}
@media (min-width: 1024px) {
    section { padding:46px 0; }
    .hero, .banner { padding:72px 0; }
    .card { padding:26px; }
}