:root {
    --primary: #269CD7;
    --black: #111111;
    --dark: #1C1C1C;
    --mid: #2B2B2B;
    --light: #F5F5F5;
    --white: #ffffff;
    --line: rgba(17,17,17,.10);
}
* { 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(--primary), #154f7a); color:#fff; position: sticky; top:0; z-index:50; box-shadow:0 8px 24px rgba(0,0,0,.14); }
.container { width:min(1120px, calc(100% - 32px)); margin:0 auto; }
.header-wrap { display:flex; align-items:center; justify-content:space-between; gap:18px; padding:14px 0; flex-wrap:wrap; }
.logo img { width:132px; border-radius:14px; }
nav { display:flex; align-items:center; gap:10px; flex-wrap:wrap; }
nav a { padding:9px 12px; border-radius:999px; font-weight:700; font-size:14px; background:rgba(255,255,255,.11); }
nav a:hover { background:rgba(255,255,255,.22); }
.mobile-nav { display:flex; width:100%; justify-content:space-between; gap:6px; }
.desktop-nav { display:none; }
.hero, .banner { background: radial-gradient(circle at 82% 12%, rgba(38,156,215,.28), transparent 34%), linear-gradient(135deg, #111111, #1C1C1C 56%, #243846); color:#fff; padding:44px 0; }
.hero-wrap { display:grid; gap:28px; align-items:center; }
.eyebrow, .tag { display:inline-flex; align-items:center; padding:7px 11px; background:rgba(38,156,215,.14); color:#dff5ff; border:1px solid rgba(255,255,255,.2); border-radius:999px; font-size:13px; font-weight:700; }
h1 { font-size:34px; line-height:1.15; margin:14px 0; letter-spacing:-.7px; }
h2 { font-size:25px; line-height:1.25; margin:0 0 12px; }
h3 { margin:0 0 8px; font-size:19px; }
p { margin:0 0 14px; }
.hero p { color:#e9eef3; }
.tags { display:flex; flex-wrap:wrap; gap:9px; margin:18px 0; }
.btn { display:inline-flex; align-items:center; justify-content:center; padding:13px 18px; border-radius:999px; color:#fff; background:var(--primary); font-weight:800; box-shadow:0 10px 22px rgba(38,156,215,.28); border:0; }
.btn:hover { transform:translateY(-1px); }
.hero-card { background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.16); padding:18px; border-radius:22px; box-shadow:0 22px 45px rgba(0,0,0,.22); }
.hero-card img { border-radius:20px; margin:auto; }
section { padding:38px 0; }
.section-head { max-width:760px; margin-bottom:22px; }
.grid { display:grid; grid-template-columns:1fr; gap:16px; }
.card { background:#fff; border:1px solid var(--line); border-radius:18px; padding:20px; box-shadow:0 10px 28px rgba(17,17,17,.06); }
.card strong { color:var(--primary); }
.notice { background:#fff; border-left:6px solid var(--primary); border-radius:18px; padding:18px; box-shadow:0 8px 22px rgba(17,17,17,.06); }
.notice.dark { background:#1C1C1C; color:#fff; }
.faq { display:grid; gap:14px; }
.faq details { background:#fff; border-radius:18px; padding:18px; border:1px solid var(--line); box-shadow:0 8px 20px rgba(17,17,17,.05); }
.faq summary { cursor:pointer; font-weight:800; }
.steps { counter-reset: step; display:grid; gap:14px; }
.step { position:relative; padding-left:58px; }
.step:before { counter-increment: step; content:counter(step); position:absolute; left:18px; top:20px; width:28px; height:28px; border-radius:50%; background:var(--primary); color:#fff; display:grid; place-items:center; font-weight:800; }
.link-row { display:flex; gap:10px; flex-wrap:wrap; margin-top:16px; }
.link-row a { color:var(--primary); font-weight:800; }
.footer { background:linear-gradient(135deg, #122b3b, var(--primary)); color:#fff; padding-top:34px; }
.footer-grid { display:grid; gap:20px; padding-bottom:26px; }
.footer a { display:block; margin:8px 0; color:#eef8ff; }
.footer-logo { width:126px; border-radius:14px; margin-bottom:12px; }
.age { font-weight:900; color:#fff; }
.footer-bottom { border-top:1px solid rgba(255,255,255,.22); text-align:center; padding:14px; font-size:13px; }
@media (min-width: 768px) {
    .mobile-nav { display:none; }
    .desktop-nav { display:flex; }
    .header-wrap { flex-wrap:nowrap; }
    h1 { font-size:48px; }
    .hero-wrap { grid-template-columns:1.15fr .85fr; }
    .grid.two { grid-template-columns:repeat(2,1fr); }
    .grid.three { grid-template-columns:repeat(3,1fr); }
    .footer-grid { grid-template-columns:1.3fr .7fr 1fr; }
}
@media (min-width: 1024px) {
    section { padding:54px 0; }
    .hero, .banner { padding:70px 0; }
    h1 { font-size:56px; }
    .grid.four { grid-template-columns:repeat(4,1fr); }
}