:root {
  color-scheme: dark;
  --bg: #08090e;
  --panel: #11131b;
  --line: rgba(255,255,255,.14);
  --text: #f6f7fb;
  --muted: #b7bdcc;
  --accent: #9eb4ff;
  --accent-strong: #d3dcff;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.75 Inter, -apple-system, BlinkMacSystemFont, "PingFang SC", "Segoe UI", sans-serif;
}
a { color: var(--accent-strong); }
a:hover { color: #fff; }
.guide-wrap { width: min(100% - 2rem, 900px); margin-inline: auto; }
.guide-nav {
  border-bottom: 1px solid var(--line);
  background: rgba(8,9,14,.94);
  position: sticky;
  top: 0;
  z-index: 2;
}
.guide-nav-inner { display: flex; justify-content: space-between; align-items: center; gap: 1rem; min-height: 64px; }
.guide-brand { color: #fff; font-weight: 800; text-decoration: none; letter-spacing: .01em; }
.guide-nav a:last-child { font-size: .92rem; }
main { padding: 3.5rem 0 4rem; }
.eyebrow { color: var(--accent); font-weight: 700; font-size: .9rem; letter-spacing: .03em; text-transform: uppercase; }
h1, h2, h3 { line-height: 1.22; letter-spacing: 0; }
h1 { max-width: 800px; font-size: clamp(2rem, 5vw, 3.6rem); margin: .65rem 0 1rem; }
h2 { font-size: clamp(1.45rem, 3vw, 2rem); margin: 2.8rem 0 .7rem; }
h3 { font-size: 1.15rem; margin: 1.5rem 0 .35rem; }
.lede { color: var(--muted); font-size: 1.12rem; max-width: 760px; }
.meta { color: var(--muted); font-size: .9rem; margin-top: 1.2rem; }
.guide-section { border-top: 1px solid var(--line); margin-top: 2.2rem; padding-top: .4rem; }
.steps { counter-reset: item; padding-left: 0; list-style: none; }
.steps li { counter-increment: item; margin: 1rem 0; padding-left: 2.6rem; position: relative; }
.steps li::before { content: counter(item); position: absolute; left: 0; top: .1rem; width: 1.7rem; height: 1.7rem; border: 1px solid var(--accent); border-radius: 50%; color: var(--accent-strong); text-align: center; line-height: 1.7rem; font-weight: 700; }
.note { background: var(--panel); border-left: 3px solid var(--accent); padding: 1rem 1.15rem; margin: 1.2rem 0; }
.faq details { border-bottom: 1px solid var(--line); padding: .8rem 0; }
.faq summary { cursor: pointer; font-weight: 700; }
.faq p { color: var(--muted); margin: .45rem 0 0; }
.guide-cta { display: inline-flex; align-items: center; gap: .5rem; margin-top: 1.4rem; background: var(--accent-strong); color: #10131d; border-radius: 7px; padding: .75rem 1rem; font-weight: 800; text-decoration: none; }
.guide-cta:hover { background: #fff; color: #10131d; }
.related { border-top: 1px solid var(--line); margin-top: 3rem; padding-top: 1.2rem; }
footer { border-top: 1px solid var(--line); color: var(--muted); padding: 1.5rem 0 2.5rem; font-size: .9rem; }
@media (max-width: 620px) { main { padding-top: 2.2rem; } .guide-nav-inner { min-height: 56px; } }