:root {
    --primary: #63c2fa;
    --black: #111111;
    --dark: #1C1C1C;
    --mid: #2B2B2B;
    --light: #F5F5F5;
    --white: #ffffff;
    --shadow: 0 18px 45px rgba(17,17,17,.09);
    --radius: 20px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: Arial, Helvetica, sans-serif; background: #fff; color: var(--black); line-height: 1.65; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
header, .site-header { width: 100%; background: rgba(255,255,255,.98); border-bottom: 1px solid rgba(0,0,0,.07); position: sticky; top: 0; z-index: 20; }
.header-inner { display: none; max-width: 1180px; margin: 0 auto; padding: 14px 20px; align-items: center; gap: 28px; }
.logo img { width: 132px; max-height: 48px; object-fit: contain; }
.main-nav { display: flex; align-items: center; justify-content: center; gap: 26px; flex: 1; font-weight: 700; color: var(--dark); }
.main-nav a { padding: 10px 0; border-bottom: 2px solid transparent; }
.main-nav a:hover { color: #1678ab; border-bottom-color: var(--primary); }
.header-actions, .mobile-actions { display: flex; gap: 10px; align-items: center; }
.mobile-topbar { min-height: 66px; display: grid; grid-template-columns: 48px 1fr 48px; align-items: center; padding: 10px 16px 6px; }
.mobile-logo { justify-self: center; }
.mobile-logo img { width: 122px; }
.mobile-menu-toggle { width: 42px; height: 42px; border: 0; background: var(--primary); color: #fff; border-radius: 14px; font-size: 22px; cursor: pointer; box-shadow: 0 10px 22px rgba(99,194,250,.28); }
.mobile-nav { display: none; padding: 8px 18px 14px; background: #fff; border-top: 1px solid rgba(0,0,0,.06); }
.mobile-nav a { display: block; padding: 12px 14px; border-radius: 14px; font-weight: 700; color: var(--dark); }
.mobile-nav a:hover { background: var(--light); }
.nav-open .mobile-nav { display: block; }
.mobile-actions { justify-content: center; padding: 0 16px 14px; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 11px 20px; border-radius: 999px; background: linear-gradient(135deg, var(--primary), #1c8ec4); color: #fff; font-weight: 800; letter-spacing: .01em; box-shadow: 0 12px 24px rgba(99,194,250,.28); border: 0; }
.btn:hover { transform: translateY(-1px); box-shadow: 0 16px 28px rgba(99,194,250,.34); }
.btn-alt { background: linear-gradient(135deg, #1b2535, #273f58); }
.header-btn { min-width: 104px; padding-left: 18px; padding-right: 18px; }
.container { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
section { padding: 54px 0; }
.hero, .banner { background: radial-gradient(circle at 80% 20%, rgba(99,194,250,.35), transparent 32%), linear-gradient(135deg, #eef9ff, #ffffff 48%, #f7fbff); }
.hero-inner { display: grid; gap: 28px; align-items: center; padding: 42px 0 50px; }
.hero h1 { font-size: clamp(2rem, 7vw, 4.5rem); line-height: 1.08; margin: 0 0 16px; letter-spacing: -.04em; }
.hero p { font-size: 1.05rem; color: #394150; margin: 0 0 18px; }
.hero-image { background: #fff; border-radius: 28px; padding: 18px; box-shadow: var(--shadow); }
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin: 22px 0; }
.tag { display: inline-flex; padding: 8px 12px; border-radius: 999px; background: rgba(99,194,250,.16); color: #125b82; font-weight: 800; font-size: .92rem; }
.kicker { display: inline-flex; padding: 8px 12px; border-radius: 999px; background: rgba(99,194,250,.18); color: #116b9b; font-weight: 800; margin-bottom: 12px; }
h1, h2, h3 { color: var(--black); line-height: 1.2; }
h2 { font-size: clamp(1.55rem, 3.8vw, 2.35rem); margin: 0 0 18px; }
h3 { margin-top: 0; }
.lead { font-size: 1.06rem; color: #4c5564; max-width: 850px; }
.grid { display: grid; grid-template-columns: 1fr; gap: 18px; }
.card { background: #fff; border: 1px solid rgba(0,0,0,.07); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.card p:last-child { margin-bottom: 0; }
.notice { border-left: 5px solid var(--primary); background: #f7fbff; border-radius: 18px; padding: 18px 20px; color: #26313f; box-shadow: 0 10px 28px rgba(0,0,0,.05); }
.notice strong { color: #0d74a8; }
.faq { display: grid; gap: 14px; }
.faq-item { background: #fff; border: 1px solid rgba(0,0,0,.08); border-radius: 18px; padding: 20px; box-shadow: 0 10px 25px rgba(0,0,0,.05); }
.faq-item h3 { margin-bottom: 8px; font-size: 1.05rem; }
.split { display: grid; gap: 22px; align-items: start; }
.steps { counter-reset: step; display: grid; gap: 14px; }
.step { counter-increment: step; position: relative; padding-left: 62px; min-height: 52px; }
.step:before { content: counter(step); position: absolute; left: 0; top: 0; width: 42px; height: 42px; display: grid; place-items: center; border-radius: 50%; background: var(--primary); color: #fff; font-weight: 900; }
.footer { background: #121821; color: #e6eef8; padding: 48px 0 0; }
.footer h2, .footer h3 { color: #fff; }
.footer a { display: block; color: #e6eef8; margin: 8px 0; }
.footer-grid { display: grid; gap: 24px; }
.footer-bottom { margin-top: 34px; padding: 18px; text-align: center; border-top: 1px solid rgba(255,255,255,.12); color: #cbd5e1; }
.cta-band { background: var(--dark); color: #fff; border-radius: 26px; padding: 28px; display: grid; gap: 16px; align-items: center; }
.cta-band h2, .cta-band p { color: #fff; margin-top: 0; }
ul.clean { padding-left: 20px; }
@media (min-width: 768px) {
    .mobile-topbar, .mobile-nav, .mobile-actions { display: none !important; }
    .header-inner { display: flex; }
    .hero-inner { grid-template-columns: 1.08fr .92fr; padding: 68px 0; }
    .grid { grid-template-columns: repeat(2, 1fr); }
    .grid.three { grid-template-columns: repeat(3, 1fr); }
    .split { grid-template-columns: 1fr 1fr; }
    .footer-grid { grid-template-columns: 1.2fr .8fr 1.2fr; }
    .cta-band { grid-template-columns: 1fr auto; }
}
@media (min-width: 1024px) {
    .header-inner { padding: 16px 32px; gap: 34px; }
    .logo img { width: 150px; }
    .main-nav { gap: 34px; }
    section { padding: 72px 0; }
}