:root {
    --primary: #1989fa;
    --black: #111111;
    --deep: #1C1C1C;
    --mid: #2B2B2B;
    --light: #F5F5F5;
    --white: #ffffff;
    --shadow: 0 18px 45px rgba(17, 17, 17, 0.10);
    --radius: 18px;
}
* { 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%; height: auto; display: block; }
header, section, footer { width: 100%; }
.site-header {
    position: sticky;
    top: 0;
    z-index: 30;
    background: rgba(255,255,255,0.97);
    box-shadow: 0 10px 30px rgba(17,17,17,0.08);
}
.header-inner {
    display: none;
    max-width: 1180px;
    margin: 0 auto;
    padding: 14px 20px;
    align-items: center;
    gap: 24px;
}
.logo img {
    width: 138px;
    max-height: 48px;
    object-fit: contain;
}
.main-nav {
    flex: 1;
    display: flex;
    justify-content: center;
    gap: 10px;
}
.main-nav a, .mobile-nav a {
    font-weight: 700;
    color: var(--deep);
    padding: 10px 14px;
    border-radius: 999px;
}
.main-nav a:hover, .mobile-nav a:hover { background: rgba(25,137,250,0.10); color: var(--primary); }
.header-actions, .mobile-actions {
    display: flex;
    gap: 10px;
    align-items: center;
    justify-content: center;
}
.mobile-topbar {
    min-height: 64px;
    display: grid;
    grid-template-columns: 48px 1fr 48px;
    align-items: center;
    padding: 8px 16px;
}
.mobile-menu-toggle {
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 14px;
    background: var(--primary);
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    line-height: 1;
}
.logo-mobile {
    display: flex;
    justify-content: center;
}
.logo-mobile img {
    margin: 0 auto;
}
.mobile-actions {
    padding: 0 16px 12px;
}
.mobile-actions .btn {
    width: min(156px, 42vw);
}
.mobile-nav {
    display: none;
    padding: 10px 16px 18px;
    background: #fff;
    border-top: 1px solid rgba(17,17,17,0.07);
    box-shadow: 0 20px 30px rgba(17,17,17,0.07);
    position: relative;
    z-index: 35;
}
.mobile-nav.is-open {
    display: grid;
    gap: 8px;
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 12px 22px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--primary), #0e63c6);
    color: #fff;
    font-weight: 800;
    box-shadow: 0 12px 24px rgba(25,137,250,0.25);
    border: 0;
    cursor: pointer;
}
.btn:hover { transform: translateY(-1px); }
.btn-small { min-height: 40px; padding: 10px 18px; font-size: 14px; }
.btn-alt { background: linear-gradient(135deg, #1C1C1C, var(--primary)); }
.container {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
}
.hero, .banner {
    background: radial-gradient(circle at top right, rgba(25,137,250,0.25), transparent 34%), linear-gradient(135deg, #101828, #172033 58%, #0e1d35);
    color: #fff;
    padding: 46px 0 38px;
}
.hero-wrap {
    display: grid;
    gap: 28px;
    align-items: center;
}
.hero h1, .banner h1 {
    font-size: clamp(32px, 8vw, 58px);
    line-height: 1.08;
    margin: 0 0 18px;
    letter-spacing: -0.04em;
}
.hero p, .banner p {
    color: rgba(255,255,255,0.84);
    font-size: 17px;
    margin: 0 0 18px;
}
.hero-image {
    background: rgba(255,255,255,0.10);
    border: 1px solid rgba(255,255,255,0.16);
    border-radius: 28px;
    padding: 16px;
    box-shadow: var(--shadow);
}
.tag-list {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin: 22px 0;
}
.tag {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    background: rgba(25,137,250,0.18);
    color: #fff;
    padding: 8px 12px;
    font-size: 14px;
    font-weight: 700;
    border: 1px solid rgba(255,255,255,0.16);
}
section {
    padding: 42px 0;
}
.section-title {
    font-size: clamp(26px, 6vw, 42px);
    line-height: 1.15;
    margin: 0 0 16px;
    letter-spacing: -0.03em;
}
.section-lead {
    color: #4b5563;
    max-width: 780px;
    margin: 0 0 22px;
}
.grid {
    display: grid;
    gap: 18px;
}
.card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 22px;
    border: 1px solid rgba(17,17,17,0.06);
}
.card h3 { margin-top: 0; color: var(--deep); }
.card p:last-child { margin-bottom: 0; }
.notice {
    background: rgba(25,137,250,0.10);
    border-left: 5px solid var(--primary);
    border-radius: 18px;
    padding: 18px;
    color: var(--deep);
    margin: 22px 0;
}
.faq {
    display: grid;
    gap: 14px;
}
.faq-item {
    background: #fff;
    border-radius: 18px;
    padding: 20px;
    box-shadow: var(--shadow);
}
.faq-item h3, .faq-item h2 {
    margin: 0 0 8px;
    color: var(--deep);
}
.link-row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 18px;
}
.link-row a {
    color: var(--primary);
    font-weight: 800;
}
.steps {
    counter-reset: step;
    display: grid;
    gap: 14px;
    padding: 0;
    list-style: none;
}
.steps li {
    counter-increment: step;
    background: #fff;
    border-radius: 18px;
    padding: 18px 18px 18px 62px;
    position: relative;
    box-shadow: var(--shadow);
}
.steps li::before {
    content: counter(step);
    position: absolute;
    left: 18px;
    top: 18px;
    width: 30px;
    height: 30px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-weight: 800;
}
.footer {
    background: var(--deep);
    color: #fff;
    padding: 42px 0 28px;
}
.footer-grid {
    display: grid;
    gap: 24px;
}
.footer-logo {
    font-size: 26px;
    font-weight: 900;
    color: #fff;
}
.footer p { color: rgba(255,255,255,0.74); }
.age {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 58px;
    height: 58px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff !important;
    font-weight: 900;
    font-size: 20px;
}
.footer-nav {
    display: grid;
    gap: 10px;
}
.footer-nav a {
    color: rgba(255,255,255,0.86);
    font-weight: 700;
}
.footer-warning {
    background: rgba(255,255,255,0.08);
    border-radius: 18px;
    padding: 18px;
}
@media (min-width: 768px) {
    .mobile-topbar, .mobile-actions, .mobile-nav {
        display: none;
    }
    .header-inner {
        display: flex;
    }
    .hero-wrap {
        grid-template-columns: 1.05fr 0.95fr;
    }
    .grid-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .grid-3 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
    section {
        padding: 58px 0;
    }
    .footer-grid {
        grid-template-columns: 1.2fr 0.8fr 1fr;
    }
}
@media (min-width: 1024px) {
    .header-inner {
        padding: 16px 30px;
    }
    .logo img {
        width: 156px;
    }
    .main-nav {
        gap: 18px;
    }
    .hero {
        padding: 78px 0 70px;
    }
    .card {
        padding: 28px;
    }
}