:root{--paper:#F2F4F5;--ink:#18232B;--steel:#566672;--line:#D3D9DD;--orange:#E35D1B;--orange-ink:#B8440C;--white:#FFFFFF}
@media (prefers-color-scheme:dark){:root{--paper:#121A20;--ink:#E7ECEF;--steel:#9AA8B2;--line:#2A3640;--orange:#F07A3A;--orange-ink:#F49563;--white:#18232B}}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:400 1.125rem/1.7 "Source Serif 4",Georgia,serif}
a{color:inherit;text-decoration-color:var(--orange);text-underline-offset:3px;text-decoration-thickness:2px}
a:hover{color:var(--orange-ink)}
:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
h1,h2,h3,.brand,.nav a,.btn,.rule-n{font-family:"Archivo",system-ui,sans-serif;font-stretch:112%}
h1{font-weight:800;font-size:clamp(2.2rem,6vw,3.6rem);line-height:1.05;letter-spacing:-.01em;margin:0 0 .5em}
h2{font-weight:750;font-size:clamp(1.45rem,3.2vw,1.9rem);line-height:1.15;margin:2.2em 0 .5em}
h3{font-weight:700;font-size:1.15rem;margin:1.6em 0 .3em}
p,li{max-width:68ch}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
header.top{border-bottom:1px solid var(--line);background:var(--paper)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:14px;padding-bottom:14px;flex-wrap:wrap}
.brand{font-weight:800;font-size:1.2rem;text-decoration:none;display:flex;align-items:center;gap:10px}
.brand i{display:inline-block;width:14px;height:14px;background:var(--orange);border-radius:3px}
.nav{display:flex;gap:18px;flex-wrap:wrap}
.nav a{font-size:.95rem;font-weight:600;text-decoration:none;color:var(--steel)}
.nav a[aria-current]{color:var(--ink);text-decoration:underline;text-decoration-color:var(--orange)}
main{padding:48px 0 72px}
.lede{font-size:1.3rem;line-height:1.55;color:var(--steel);max-width:58ch}
.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:start}
.rules{list-style:none;margin:0;padding:0;border-top:4px solid var(--orange)}
.rules li{display:grid;grid-template-columns:3.2rem 1fr;gap:12px;padding:16px 0;border-bottom:1px solid var(--line);max-width:none}
.rules .rule-n{font-weight:800;font-size:2.4rem;line-height:1;color:var(--orange)}
.rules b{display:block;font-family:"Archivo",system-ui,sans-serif;font-stretch:112%;font-size:1.15rem;line-height:1.25;margin-bottom:4px}
.rules div span{color:var(--steel);font-size:1rem;line-height:1.5}
.rules-cap{font-size:.9rem;color:var(--steel);margin-top:10px}
.btn{display:inline-block;font-weight:700;font-size:1rem;padding:13px 20px;border-radius:6px;text-decoration:none;background:var(--ink);color:var(--paper);margin:8px 10px 0 0}
.btn:hover{color:var(--paper);background:var(--orange-ink)}
.btn.alt{background:transparent;color:var(--ink);border:2px solid var(--ink)}
.btn.alt:hover{border-color:var(--orange-ink);color:var(--orange-ink);background:transparent}
.guides{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:0;border-top:1px solid var(--line);margin-top:20px}
.guides a{display:block;padding:20px 20px 20px 0;border-bottom:1px solid var(--line);text-decoration:none}
.guides a b{display:block;font-family:"Archivo",system-ui,sans-serif;font-stretch:112%;font-size:1.1rem}
.guides a span{color:var(--steel);font-size:1rem;line-height:1.5}
.guides a:hover b{color:var(--orange-ink)}
.partner{margin-top:56px;padding:28px;border:2px solid var(--ink);border-radius:8px;background:var(--white)}
.partner h2{margin-top:0}
.small{font-size:.9rem;color:var(--steel)}
.bnr{display:block;margin:20px 0 4px;max-width:100%}.bnr img{display:block;max-width:100%;height:auto;border-radius:6px}
.article{max-width:720px}
.article ul,.article ol{padding-left:1.3em}
.article li{margin:.35em 0}
.note{border-left:4px solid var(--orange);padding:4px 0 4px 16px;margin:24px 0;color:var(--steel)}
.check li::marker{color:var(--orange)}
footer{border-top:1px solid var(--line);padding:28px 0 40px;font-size:.95rem;color:var(--steel)}
footer .wrap{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
footer nav{display:flex;gap:16px;flex-wrap:wrap}
@media (max-width:820px){.hero{grid-template-columns:1fr;gap:28px}main{padding-top:32px}}