:root { --primary: #64AAFA; --black:#111111; --dark:#1C1C1C; --mid:#2B2B2B; --light:#F5F5F5; --white:#ffffff; --text:#222; }
* { box-sizing: border-box; }
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%; display:block; }
header, .site-header { background:linear-gradient(135deg, var(--primary), #1C1C1C); color:#fff; position:sticky; top:0; z-index:20; box-shadow:0 8px 30px rgba(0,0,0,.12); }
.container { width:min(1120px, calc(100% - 32px)); margin:0 auto; }
.header-inner { min-height:72px; display:flex; align-items:center; justify-content:space-between; gap:18px; }
.logo { display:flex; align-items:center; gap:10px; font-weight:800; font-size:22px; letter-spacing:.4px; }
.logo img { width:44px; height:44px; border-radius:14px; background:#fff; object-fit:contain; padding:4px; }
nav { display:none; flex-direction:column; position:absolute; top:72px; left:0; right:0; background:#111; padding:14px 24px; }
nav a { padding:12px 0; color:#fff; font-weight:700; border-bottom:1px solid rgba(255,255,255,.1); }
.nav-toggle { display:none; }
.mobile-nav { display:block; font-size:28px; cursor:pointer; color:#fff; }
.nav-toggle:checked ~ nav { display:flex; }
.hero, .banner { background:radial-gradient(circle at top left, rgba(100,170,250,.25), transparent 38%), linear-gradient(135deg, #111111, #2B2B2B); color:#fff; padding:54px 0 36px; }
.hero-grid { display:grid; gap:28px; align-items:center; }
.hero h1, .page-hero h1 { font-size:34px; line-height:1.15; margin:0 0 16px; }
.hero p, .page-hero p { color:#e9eef5; font-size:17px; margin:0 0 18px; }
.hero-image { background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.14); border-radius:24px; padding:18px; box-shadow:0 20px 50px rgba(0,0,0,.25); }
.tags { display:flex; flex-wrap:wrap; gap:10px; margin:18px 0; }
.tag { background:rgba(100,170,250,.18); border:1px solid rgba(100,170,250,.55); color:#fff; padding:8px 12px; border-radius:999px; font-size:14px; font-weight:700; }
section { padding:34px 0; }
.page-hero { background:linear-gradient(135deg, var(--primary), #111); color:#fff; padding:48px 0; }
.section-title { font-size:28px; margin:0 0 14px; color:#111; }
.grid { display:grid; gap:18px; }
.card { background:#fff; border-radius:18px; padding:22px; box-shadow:0 10px 28px rgba(0,0,0,.07); border:1px solid rgba(0,0,0,.05); }
.card h2, .card h3 { margin-top:0; color:#111; line-height:1.25; }
.btn { display:inline-flex; align-items:center; justify-content:center; padding:13px 20px; border-radius:999px; background:var(--primary); color:#111; font-weight:800; border:0; box-shadow:0 10px 22px rgba(0,0,0,.16); transition:transform .2s ease, box-shadow .2s ease; }
.btn:hover { transform:translateY(-2px); box-shadow:0 14px 30px rgba(0,0,0,.2); }
.notice { background:#fff; border-left:6px solid var(--primary); border-radius:18px; padding:18px; box-shadow:0 10px 24px rgba(0,0,0,.06); margin:18px 0; }
.notice strong { color:#111; }
.faq { display:grid; gap:14px; }
.faq details { background:#fff; border-radius:18px; padding:18px 20px; box-shadow:0 8px 22px rgba(0,0,0,.06); }
.faq summary { cursor:pointer; font-weight:800; color:#111; }
.steps { counter-reset:step; display:grid; gap:16px; }
.step { position:relative; padding-left:56px; }
.step:before { counter-increment:step; content:counter(step); position:absolute; left:0; top:0; width:38px; height:38px; border-radius:50%; background:var(--primary); color:#111; display:grid; place-items:center; font-weight:900; }
.links { display:flex; flex-wrap:wrap; gap:10px; margin-top:16px; }
.links a { color:#111; background:#fff; border:1px solid rgba(0,0,0,.08); padding:9px 12px; border-radius:999px; font-weight:700; }
.footer { background:linear-gradient(135deg, #111, var(--primary)); color:#fff; padding:34px 0 18px; margin-top:34px; }
.footer-grid { display:grid; gap:22px; }
.footer a { display:block; color:#fff; padding:4px 0; opacity:.92; }
.footer p { color:#f3f7ff; }
.footer-bottom { border-top:1px solid rgba(255,255,255,.18); margin-top:24px; padding-top:18px; font-size:14px; opacity:.9; }
@media (min-width: 768px) {
    .hero-grid { 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:1.2fr .8fr 1.2fr; }
    .hero h1, .page-hero h1 { font-size:46px; }
}
@media (min-width: 1024px) {
    .mobile-nav { display:none; }
    nav { display:flex; flex-direction:row; position:static; background:transparent; padding:0; gap:22px; }
    nav a { border-bottom:0; padding:8px 0; }
    section { padding:46px 0; }
}