:root {
    --primary: #306ec1;
    --black: #111111;
    --dark: #1C1C1C;
    --mid: #2B2B2B;
    --light: #F5F5F5;
    --white: #ffffff;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: Arial, Helvetica, sans-serif; background: var(--light); color: var(--black); line-height: 1.65; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
header, .site-header { background: var(--primary); color: var(--white); position: sticky; top: 0; z-index: 20; box-shadow: 0 8px 24px rgba(0,0,0,.12); }
.container { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 14px 0; flex-wrap: wrap; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 22px; letter-spacing: .6px; }
.logo img { width: 86px; height: 34px; border-radius: 10px; object-fit: cover; background: #fff; }
nav, .main-nav { display: none; align-items: center; gap: 8px; }
nav a, .main-nav a, .mobile-nav a { padding: 9px 12px; border-radius: 999px; font-weight: 700; font-size: 14px; }
nav a:hover, .main-nav a:hover, .mobile-nav a:hover { background: rgba(255,255,255,.18); }
.mobile-nav { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; width: 100%; text-align: center; }
.hero, .banner { background: linear-gradient(135deg, var(--dark), var(--mid)); color: var(--white); padding: 56px 0; }
.hero-grid { display: grid; gap: 28px; align-items: center; }
.hero h1, .banner h1 { font-size: clamp(32px, 7vw, 58px); line-height: 1.1; margin: 0 0 18px; }
.hero p, .banner p { color: rgba(255,255,255,.86); font-size: 17px; }
.hero-image { padding: 18px; background: rgba(255,255,255,.08); border-radius: 28px; box-shadow: 0 18px 50px rgba(0,0,0,.25); }
.tags { display: flex; flex-wrap: wrap; gap: 10px; margin: 22px 0; }
.tag { background: rgba(48,110,193,.16); border: 1px solid rgba(48,110,193,.35); color: var(--white); padding: 8px 12px; border-radius: 999px; font-size: 13px; font-weight: 700; }
section { padding: 48px 0; }
.section-title { margin: 0 0 16px; font-size: clamp(25px, 4vw, 38px); }
.lead { font-size: 18px; color: #444; max-width: 820px; }
.grid { display: grid; gap: 18px; }
.card { background: var(--white); border-radius: 20px; 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; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 12px 22px; border-radius: 999px; background: var(--primary); color: var(--white); font-weight: 800; box-shadow: 0 10px 22px rgba(48,110,193,.24); border: 0; }
.btn:hover { transform: translateY(-1px); }
.notice { background: #eef4ff; border-left: 5px solid var(--primary); padding: 18px; border-radius: 18px; box-shadow: 0 8px 20px rgba(0,0,0,.05); }
.faq { display: grid; gap: 14px; }
.faq details { background: var(--white); border-radius: 18px; padding: 18px; box-shadow: 0 8px 22px rgba(0,0,0,.06); }
.faq summary { cursor: pointer; font-weight: 800; color: var(--dark); }
.inline-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.inline-links a { color: var(--primary); font-weight: 800; }
.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; border-radius: 50%; background: var(--primary); color: #fff; display: grid; place-items: center; font-weight: 800; }
.footer { background: var(--primary); color: var(--white); padding: 42px 0; }
.footer-grid { display: grid; gap: 24px; }
.footer a { display: block; margin: 7px 0; color: rgba(255,255,255,.9); }
.footer p { color: rgba(255,255,255,.88); }
@media (min-width: 768px) {
    .main-nav { display: flex; }
    .mobile-nav { display: none; }
    .hero-grid { grid-template-columns: 1.1fr .9fr; }
    .grid.two { grid-template-columns: repeat(2, 1fr); }
    .grid.three { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: 1.2fr .8fr 1fr; }
}
@media (min-width: 1024px) {
    section { padding: 64px 0; }
    .card { padding: 28px; }
    .hero, .banner { padding: 76px 0; }
}