:root {
  --bg: #06111d;
  --panel: #0e2234;
  --text: #f8fafc;
  --muted: #a8b5c5;
  --green: #32dd74;
  --line: rgba(255,255,255,.10);
  --line-green: rgba(50,221,116,.25);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--text); background: radial-gradient(circle at 80% 0, rgba(50,221,116,.10), transparent 26%), var(--bg); font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI Variable", "Segoe UI", sans-serif; line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: var(--green); }
.container { width: min(900px, calc(100% - 36px)); margin-inline: auto; }
nav { position: sticky; top: 0; z-index: 10; border-bottom: 1px solid var(--line); background: rgba(6,17,29,.88); backdrop-filter: blur(16px); }
.nav-row { min-height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-size: 21px; font-weight: 900; letter-spacing: -.03em; }
.brand img { width: 36px; height: 36px; border-radius: 9px; }
.brand strong { color: var(--green); }
.back { color: var(--muted); text-decoration: none; font-size: 13px; font-weight: 750; }
.back:hover { color: var(--green); }
main { padding: 50px 0 100px; }
.lang-picker { display: inline-flex; gap: 4px; margin-bottom: 30px; padding: 4px; border: 1px solid var(--line); border-radius: 12px; background: rgba(255,255,255,.03); }
.lang-picker a { border: 0; border-radius: 9px; padding: 9px 13px; color: var(--muted); background: transparent; text-decoration: none; font-weight: 800; font-size: 12px; }
.lang-picker a.active { color: #04110a; background: var(--green); }
.lang-content { display: none; }
.lang-content.active { display: block; }
h1 { margin: 0; font-size: clamp(38px, 6vw, 58px); line-height: 1.03; letter-spacing: -.05em; }
.updated { margin: 14px 0 30px; padding-bottom: 24px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.summary-box { margin: 24px 0 34px; padding: 20px 22px; border: 1px solid var(--line-green); border-radius: 16px; background: rgba(50,221,116,.055); }
.summary-box p { margin: 0; color: #e9fff1; }
.toc { margin: 30px 0 40px; padding: 22px; border: 1px solid var(--line); border-radius: 16px; background: rgba(255,255,255,.025); }
.toc strong { display: block; margin-bottom: 10px; }
.toc a { display: inline-block; margin: 5px 14px 5px 0; font-size: 13px; text-decoration: none; }
h2 { scroll-margin-top: 90px; margin: 42px 0 13px; color: var(--green); font-size: 24px; line-height: 1.25; letter-spacing: -.025em; }
h3 { margin: 24px 0 9px; font-size: 18px; }
p, li { color: var(--muted); font-size: 15.5px; }
p { margin: 0 0 13px; }
ul { margin: 0 0 16px; padding-left: 23px; }
li { margin: 7px 0; }
strong { color: var(--text); }
.note { padding: 16px 18px; border-left: 3px solid var(--green); background: rgba(255,255,255,.025); }
.legal-footer { margin-top: 52px; padding-top: 24px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
@media (max-width: 620px) { .back { font-size: 0; } .back::after { content: "←"; font-size: 22px; } main { padding-top: 34px; } }