:root {
    --primary: #ffd630;
    --black: #111111;
    --dark: #1C1C1C;
    --mid: #2B2B2B;
    --light: #F5F5F5;
    --white: #ffffff;
    --shadow: 0 14px 34px 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: #ffffff; line-height: 1.7; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
header, .site-header { background: var(--white); border-bottom: 1px solid rgba(17,17,17,.08); position: sticky; top: 0; z-index: 50; }
.header-inner { max-width: 1180px; margin: 0 auto; padding: 12px 18px; display: grid; grid-template-columns: 44px 1fr 0; align-items: center; gap: 12px; }
.logo { display: flex; justify-content: center; align-items: center; }
.logo img { width: 122px; max-height: 48px; object-fit: contain; }
.main-nav, .header-actions { display: none; }
.mobile-menu-toggle { width: 42px; height: 42px; border: 0; border-radius: 14px; background: var(--primary); color: #111; font-size: 24px; font-weight: 800; cursor: pointer; line-height: 1; }
.mobile-nav { display: none; padding: 10px 18px 16px; background: #fff; border-top: 1px solid rgba(17,17,17,.08); gap: 8px; position: relative; z-index: 60; }
.mobile-nav.is-open { display: grid; }
.mobile-nav a { padding: 12px 14px; border-radius: 14px; background: var(--light); font-weight: 700; }
.mobile-actions { display: flex; justify-content: center; gap: 10px; padding: 0 18px 14px; background: #fff; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 13px 22px; border-radius: 999px; background: linear-gradient(135deg, var(--primary), #111111); color: #fff; font-weight: 800; border: 0; box-shadow: 0 10px 20px rgba(17,17,17,.12); cursor: pointer; }
.btn:hover { transform: translateY(-1px); }
.btn-small { padding: 10px 18px; font-size: 14px; }
.btn-soft { background: linear-gradient(135deg, #111111, var(--primary)); }
.container { width: min(1120px, calc(100% - 36px)); margin: 0 auto; }
section { padding: 44px 0; }
.hero, .banner { background: radial-gradient(circle at top right, rgba(255,214,48,.42), transparent 30%), linear-gradient(135deg, #111111, #2B2B2B); color: #fff; }
.hero .container { display: grid; gap: 28px; align-items: center; padding: 44px 0; }
.hero h1 { font-size: clamp(30px, 8vw, 58px); line-height: 1.08; margin: 0 0 18px; }
.hero p { color: rgba(255,255,255,.86); margin: 0 0 20px; }
.hero-media { background: rgba(255,255,255,.08); border-radius: 28px; padding: 20px; box-shadow: var(--shadow); }
.tags { display: flex; flex-wrap: wrap; gap: 10px; margin: 22px 0; }
.tag { background: rgba(255,214,48,.18); color: #fff; border: 1px solid rgba(255,255,255,.18); padding: 8px 12px; border-radius: 999px; font-size: 14px; font-weight: 700; }
.section-title { font-size: clamp(24px, 5vw, 38px); margin: 0 0 14px; }
.section-lead { color: #555; margin: 0 0 24px; }
.grid { display: grid; gap: 18px; }
.card { background: #fff; border: 1px solid rgba(17,17,17,.08); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.card h2, .card h3 { margin-top: 0; line-height: 1.25; }
.card p { margin-bottom: 0; color: #444; }
.notice { border-left: 5px solid var(--primary); background: #fff9d8; border-radius: var(--radius); padding: 18px 20px; box-shadow: var(--shadow); }
.notice strong { color: #111; }
.faq { display: grid; gap: 14px; }
.faq details { background: #fff; border-radius: var(--radius); padding: 18px 20px; box-shadow: var(--shadow); border: 1px solid rgba(17,17,17,.08); }
.faq summary { font-weight: 800; cursor: pointer; }
.link-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.list { padding-left: 20px; }
.footer { background: var(--dark); color: #fff; padding: 38px 0; }
.footer-grid { display: grid; gap: 22px; }
.footer h2 { font-size: 18px; margin: 0 0 12px; }
.footer p { color: rgba(255,255,255,.76); margin: 0 0 10px; }
.footer a { display: block; color: rgba(255,255,255,.84); margin-bottom: 8px; }
@media (min-width: 768px) {
    .header-inner { grid-template-columns: auto 1fr auto; padding: 14px 24px; }
    .mobile-menu-toggle, .mobile-actions { display: none; }
    .logo { justify-content: flex-start; }
    .logo img { width: 146px; }
    .main-nav { display: flex; justify-content: center; align-items: center; gap: 24px; font-weight: 800; }
    .main-nav a { padding: 8px 4px; }
    .header-actions { display: flex; gap: 10px; align-items: center; justify-content: flex-end; }
    .mobile-nav, .mobile-nav.is-open { display: none; }
    .hero .container { grid-template-columns: 1.05fr .95fr; padding: 68px 0; }
    .grid.two { grid-template-columns: repeat(2, 1fr); }
    .grid.three { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: 1.4fr .8fr 1fr; }
}
@media (min-width: 1024px) {
    .header-inner { max-width: 1220px; padding-left: 34px; padding-right: 34px; }
    .main-nav { gap: 34px; }
    section { padding: 62px 0; }
    .card { padding: 28px; }
}