:root {
    --primary: #31a0d2;
    --black: #111111;
    --dark: #1C1C1C;
    --mid: #2B2B2B;
    --light: #F5F5F5;
    --white: #ffffff;
    --radius: 18px;
    --shadow: 0 16px 38px rgba(17, 17, 17, .10);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    color: var(--black);
    background: #fafafa;
    line-height: 1.65;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
header, .site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(255,255,255,.96);
    border-bottom: 1px solid rgba(17,17,17,.08);
    box-shadow: 0 8px 24px rgba(17,17,17,.05);
}
.header-inner {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    min-height: 72px;
    display: grid;
    grid-template-columns: 44px 1fr 44px;
    align-items: center;
    gap: 12px;
}
.logo { display: flex; align-items: center; justify-content: center; }
.logo img { width: 138px; max-height: 52px; object-fit: contain; }
.main-nav, .header-actions { display: none; }
.mobile-menu-toggle {
    border: 0;
    background: var(--primary);
    color: #fff;
    width: 42px;
    height: 42px;
    border-radius: 14px;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    box-shadow: 0 8px 18px rgba(49,160,210,.24);
}
.mobile-nav {
    display: none;
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto 12px;
    padding: 12px;
    background: #fff;
    border-radius: 16px;
    border: 1px solid rgba(17,17,17,.08);
    box-shadow: var(--shadow);
}
.mobile-nav.is-open { display: grid; }
.mobile-nav a {
    padding: 12px 14px;
    border-radius: 12px;
    color: var(--dark);
}
.mobile-nav a:hover { background: var(--light); }
.mobile-actions {
    display: flex;
    justify-content: center;
    gap: 10px;
    padding: 0 16px 14px;
}
.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), #0b6e99);
    color: #fff;
    font-weight: 700;
    border: 0;
    box-shadow: 0 12px 28px rgba(49,160,210,.24);
}
.btn-small { min-height: 40px; padding: 9px 18px; font-size: 14px; }
.btn-soft { background: linear-gradient(135deg, #1C1C1C, #2B2B2B); }
.container {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
}
section { padding: 54px 0; }
.hero, .banner {
    background:
        radial-gradient(circle at top left, rgba(49,160,210,.25), transparent 36%),
        linear-gradient(135deg, #102333, #111111 62%);
    color: #fff;
}
.hero .container {
    display: grid;
    gap: 28px;
    align-items: center;
    padding: 50px 0;
}
.hero h1 { font-size: clamp(32px, 8vw, 62px); line-height: 1.08; margin: 0 0 18px; }
.hero p { color: rgba(255,255,255,.86); margin: 0 0 22px; }
.hero-img {
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.16);
    border-radius: 28px;
    padding: 18px;
    box-shadow: var(--shadow);
}
.tags { display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0; }
.tag {
    padding: 9px 12px;
    border-radius: 999px;
    background: rgba(255,255,255,.12);
    border: 1px solid rgba(255,255,255,.2);
    font-size: 14px;
}
.section-title { margin: 0 0 14px; font-size: clamp(26px, 4vw, 40px); line-height: 1.18; }
.lead { font-size: 18px; color: #4d4d4d; max-width: 820px; }
.grid {
    display: grid;
    gap: 18px;
    grid-template-columns: 1fr;
}
.card {
    background: #fff;
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(17,17,17,.06);
}
.card h3 { margin-top: 0; color: var(--dark); }
.card p:last-child { margin-bottom: 0; }
.notice {
    background: linear-gradient(135deg, rgba(49,160,210,.14), rgba(49,160,210,.06));
    border-left: 5px solid var(--primary);
    border-radius: 18px;
    padding: 18px 20px;
    margin: 22px 0;
}
.faq {
    display: grid;
    gap: 14px;
}
.faq details {
    background: #fff;
    border-radius: 16px;
    padding: 18px 20px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(17,17,17,.06);
}
.faq summary { font-weight: 700; cursor: pointer; }
.cta-box {
    background: var(--dark);
    color: #fff;
    border-radius: 24px;
    padding: 30px;
    box-shadow: var(--shadow);
}
.cta-box p { color: rgba(255,255,255,.82); }
.inline-links { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 18px; }
.inline-links a { color: #0b6e99; font-weight: 700; }
.footer {
    background: #111111;
    color: #fff;
    padding-top: 42px;
}
.footer-grid {
    display: grid;
    gap: 26px;
}
.footer a { display: block; color: rgba(255,255,255,.82); margin: 8px 0; }
.footer p { color: rgba(255,255,255,.76); }
.footer-logo img { width: 136px; margin-bottom: 14px; }
.footer-bottom {
    margin-top: 32px;
    padding: 18px;
    text-align: center;
    color: rgba(255,255,255,.7);
    border-top: 1px solid rgba(255,255,255,.1);
}
@media (min-width: 768px) {
    .header-inner {
        grid-template-columns: auto 1fr auto;
        min-height: 82px;
    }
    .mobile-menu-toggle, .mobile-actions { display: none; }
    .logo { justify-content: flex-start; }
    .logo img { width: 156px; }
    .main-nav {
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 8px;
    }
    .main-nav a {
        padding: 10px 14px;
        border-radius: 999px;
        color: var(--dark);
        font-weight: 700;
    }
    .main-nav a:hover { background: var(--light); }
    .header-actions {
        display: flex;
        gap: 10px;
        justify-content: flex-end;
    }
    .mobile-nav, .mobile-nav.is-open { display: none; }
    .hero .container { grid-template-columns: 1.1fr .9fr; padding: 76px 0; }
    .grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1.2fr .8fr 1fr; }
}
@media (min-width: 1024px) {
    .header-inner { width: min(1220px, calc(100% - 64px)); }
    section { padding: 72px 0; }
    .grid-3 { grid-template-columns: repeat(3, 1fr); }
    .hero h1 { max-width: 760px; }
}