:root {
    --primary: #1abc9c;
    --black: #111111;
    --dark: #1C1C1C;
    --mid: #2B2B2B;
    --light: #F5F5F5;
    --white: #ffffff;
    --text: #202124;
    --muted: #62656a;
    --shadow: 0 18px 45px rgba(17,17,17,.10);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: Arial, Helvetica, sans-serif; background: var(--light); color: var(--text); line-height: 1.7; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
header, .site-header { background: linear-gradient(135deg, var(--primary), #0b7f69); color: var(--white); position: sticky; top: 0; z-index: 20; box-shadow: 0 8px 24px rgba(17,17,17,.14); }
.container { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 0; flex-wrap: wrap; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: .5px; }
.logo img { width: 44px; height: 44px; border-radius: 14px; background: var(--white); padding: 5px; }
.logo span { font-size: 1.28rem; }
nav { display: flex; align-items: center; gap: 10px; }
nav a { padding: 9px 12px; border-radius: 999px; color: var(--white); font-weight: 700; font-size: .94rem; }
nav a:hover { background: rgba(255,255,255,.16); }
.desktop-nav { display: none; }
.mobile-nav { width: 100%; justify-content: space-between; gap: 6px; }
.mobile-nav a { font-size: .86rem; padding: 8px 9px; }
.hero, .banner { background: radial-gradient(circle at 20% 20%, rgba(26,188,156,.22), transparent 28%), linear-gradient(135deg, #111111, #1C1C1C 60%, #123a33); color: var(--white); padding: 54px 0; }
.hero-grid { display: grid; gap: 28px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; padding: 8px 12px; border-radius: 999px; background: rgba(26,188,156,.18); color: #dffff8; font-weight: 800; font-size: .88rem; margin-bottom: 14px; }
h1, h2, h3 { line-height: 1.25; margin: 0 0 14px; color: inherit; }
h1 { font-size: clamp(2rem, 7vw, 4.4rem); letter-spacing: -.04em; }
h2 { font-size: clamp(1.6rem, 4vw, 2.5rem); letter-spacing: -.025em; }
h3 { font-size: 1.16rem; }
p { margin: 0 0 14px; }
.hero p { color: #e7eceb; font-size: 1.02rem; }
.hero-art { background: rgba(255,255,255,.07); padding: 20px; border-radius: 28px; border: 1px solid rgba(255,255,255,.12); box-shadow: var(--shadow); }
.tags { display: flex; gap: 10px; flex-wrap: wrap; margin: 20px 0; }
.tag { background: rgba(26,188,156,.16); color: #eafffb; border: 1px solid rgba(255,255,255,.15); padding: 8px 12px; border-radius: 999px; font-weight: 700; font-size: .88rem; }
section { padding: 48px 0; }
.section-head { max-width: 760px; margin-bottom: 24px; }
.section-head p { color: var(--muted); }
.card { background: var(--white); border-radius: 20px; padding: 24px; box-shadow: var(--shadow); border: 1px solid rgba(17,17,17,.06); }
.card h3 { color: var(--black); }
.card p, .card li { color: var(--muted); }
.grid { display: grid; gap: 18px; }
.grid.two, .grid.three { grid-template-columns: 1fr; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 12px 20px; border-radius: 999px; background: var(--primary); color: var(--white); font-weight: 800; border: 0; box-shadow: 0 10px 22px rgba(26,188,156,.28); }
.btn:hover { transform: translateY(-1px); }
.notice { background: #eefcf8; border-left: 5px solid var(--primary); border-radius: 18px; padding: 18px; color: #134b42; font-weight: 700; }
.faq { display: grid; gap: 14px; }
.faq-item { background: var(--white); border-radius: 18px; padding: 20px; box-shadow: var(--shadow); }
.faq-item h3 { color: var(--black); }
ul.steps, ul.safe-list { padding-left: 20px; margin: 0; }
ul.steps li, ul.safe-list li { margin-bottom: 10px; }
.inline-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.inline-links a { color: var(--primary); font-weight: 800; }
.cta-box { background: linear-gradient(135deg, var(--black), var(--mid)); color: var(--white); border-radius: 24px; padding: 28px; box-shadow: var(--shadow); }
.cta-box p { color: #e7e7e7; }
.footer { background: var(--primary); color: var(--white); padding: 42px 0 22px; }
.footer-grid { display: grid; gap: 24px; }
.footer a { display: block; margin: 8px 0; color: var(--white); font-weight: 700; }
.footer-logo { font-size: 1.5rem; font-weight: 900; }
.footer p { color: rgba(255,255,255,.9); }
.copyright { margin-top: 24px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.22); font-size: .9rem; color: rgba(255,255,255,.84); }
@media (min-width: 768px) {
    .desktop-nav { display: flex; }
    .mobile-nav { display: none; }
    .header-inner { flex-wrap: nowrap; }
    .hero-grid { grid-template-columns: 1.1fr .9fr; }
    .grid.two { grid-template-columns: repeat(2, 1fr); }
    .grid.three { grid-template-columns: repeat(3, 1fr); }
    section { padding: 64px 0; }
    .footer-grid { grid-template-columns: 1.5fr 1fr 1.5fr; }
}
@media (min-width: 1024px) {
    .hero, .banner { padding: 76px 0; }
    .card { padding: 28px; }
}