:root { --primary: #366eff; --black: #111111; --dark: #1C1C1C; --mid: #2B2B2B; --light: #F5F5F5; --white: #ffffff; --soft: rgba(17,17,17,.08); }
* { 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%; display:block; }
header, .site-header { background:linear-gradient(135deg, var(--primary), #163a9b); color:#fff; position:sticky; top:0; z-index:10; box-shadow:0 8px 30px 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; padding:14px 0; gap:18px; }
.logo { display:flex; align-items:center; gap:10px; font-weight:800; letter-spacing:.4px; }
.logo img { width:42px; height:42px; border-radius:12px; background:#fff; padding:4px; object-fit:contain; }
nav { display:none; gap:8px; flex-direction:column; position:absolute; left:16px; right:16px; top:72px; background:#fff; color:var(--black); border-radius:18px; padding:12px; box-shadow:0 18px 40px rgba(0,0,0,.18); }
nav a { padding:11px 13px; border-radius:12px; font-weight:700; }
nav a:hover { background:rgba(54,110,255,.1); color:var(--primary); }
.nav-toggle { display:none; }
.nav-toggle:checked ~ nav { display:flex; }
.mobile-nav { display:flex; flex-direction:column; gap:5px; cursor:pointer; padding:9px; border-radius:12px; background:rgba(255,255,255,.16); }
.mobile-nav span { display:block; width:24px; height:2px; background:#fff; border-radius:3px; }
.hero, .banner { background:radial-gradient(circle at 80% 10%, rgba(54,110,255,.18), transparent 30%), linear-gradient(135deg, #10172a, #1f2937 60%, #111111); color:#fff; padding:54px 0 42px; }
.banner-grid { display:grid; gap:28px; align-items:center; }
.hero h1, .banner h1 { font-size:clamp(2rem, 6vw, 4rem); line-height:1.08; margin:0 0 18px; letter-spacing:-1.2px; }
.hero p, .banner p { color:#e5e7eb; font-size:1.05rem; margin:0 0 18px; }
.hero-image { background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.12); border-radius:28px; padding:18px; box-shadow:0 24px 70px rgba(0,0,0,.28); }
.tags { display:flex; flex-wrap:wrap; gap:10px; margin:18px 0 22px; }
.tag { background:rgba(54,110,255,.18); border:1px solid rgba(255,255,255,.18); color:#fff; padding:8px 12px; border-radius:999px; font-size:.92rem; font-weight:700; }
section { padding:46px 0; }
.section-title { margin:0 0 10px; font-size:clamp(1.55rem, 4vw, 2.4rem); line-height:1.18; letter-spacing:-.5px; }
.lead { color:#4b5563; max-width:760px; margin:0 0 22px; }
.grid { display:grid; gap:18px; }
.card { background:#fff; border-radius:20px; padding:22px; box-shadow:0 10px 28px var(--soft); border:1px solid rgba(17,17,17,.06); }
.card h2, .card h3 { margin-top:0; line-height:1.25; }
.card p:last-child { margin-bottom:0; }
.btn { display:inline-flex; align-items:center; justify-content:center; padding:13px 20px; background:var(--primary); color:#fff; border-radius:999px; font-weight:800; box-shadow:0 12px 24px rgba(54,110,255,.24); border:0; }
.btn:hover { transform:translateY(-1px); filter:brightness(.96); }
.notice { background:#fff; border-left:5px solid var(--primary); border-radius:18px; padding:18px 20px; box-shadow:0 10px 28px var(--soft); margin:18px 0; }
.notice strong { color:var(--primary); }
.faq { display:grid; gap:14px; }
.faq details { background:#fff; border-radius:18px; padding:18px 20px; box-shadow:0 8px 22px var(--soft); }
.faq summary { cursor:pointer; font-weight:800; }
.inline-links { display:flex; flex-wrap:wrap; gap:10px; margin-top:18px; }
.inline-links a { color:var(--primary); font-weight:800; background:#fff; border-radius:999px; padding:8px 12px; box-shadow:0 8px 18px var(--soft); }
.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; background:var(--primary); color:#fff; display:grid; place-items:center; border-radius:50%; font-weight:800; }
.footer { background:linear-gradient(135deg, #111111, #1C1C1C); color:#f3f4f6; padding:40px 0 18px; }
.footer-grid { display:grid; gap:24px; }
.footer a { display:block; color:#f3f4f6; margin:8px 0; }
.footer p { color:#d1d5db; }
.footer-brand { font-size:1.5rem; font-weight:900; color:#fff; margin-bottom:8px; }
.footer-bottom { border-top:1px solid rgba(255,255,255,.12); margin-top:26px; padding-top:16px; color:#d1d5db; font-size:.92rem; }
@media (min-width: 768px) {
    nav { display:flex; position:static; flex-direction:row; background:transparent; color:#fff; box-shadow:none; padding:0; }
    nav a:hover { background:rgba(255,255,255,.16); color:#fff; }
    .mobile-nav { display:none; }
    .banner-grid { grid-template-columns:1.1fr .9fr; }
    .grid.two { grid-template-columns:repeat(2, minmax(0, 1fr)); }
    .grid.three { grid-template-columns:repeat(3, minmax(0, 1fr)); }
    .footer-grid { grid-template-columns:1.4fr .8fr 1.2fr; }
}
@media (min-width: 1024px) {
    section { padding:62px 0; }
    .hero, .banner { padding:76px 0 66px; }
    .card { padding:28px; }
}