:root { --accent: #d6425e; --grad1: #ff7a5c; --grad2: #ff5c9a; --ink: #1b1613; --muted: #6b6560; --line: #ece7e3; --bg: #ffffff; --soft: #fff7f4; }
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; color: var(--ink); background: var(--bg); line-height: 1.65; font-size: 18px; }
img { max-width: 100%; }
.wrap { max-width: 720px; margin: 0 auto; padding: 0 20px; }
a { color: var(--accent); }
header.site { border-bottom: 1px solid var(--line); }
header.site .bar { display: flex; align-items: center; gap: 10px; height: 62px; }
header.site img { width: 30px; height: 30px; display: block; }
header.site a.brand { font-weight: 800; color: var(--ink); text-decoration: none; font-size: 18px; }
header.site .spacer { flex: 1; }
header.site a.cta { background: linear-gradient(135deg, var(--grad1), var(--grad2)); color: #fff; text-decoration: none; padding: 9px 16px; border-radius: 999px; font-weight: 700; font-size: 14px; white-space: nowrap; }
article { padding: 34px 0; }
article h1 { font-size: 34px; line-height: 1.18; margin: 0 0 10px; font-weight: 800; letter-spacing: -0.01em; }
.meta { color: var(--muted); font-size: 15px; margin-bottom: 26px; }
article h2 { font-size: 24px; margin: 34px 0 10px; letter-spacing: -0.01em; }
article h3 { font-size: 19px; margin: 24px 0 6px; }
article p { margin: 0 0 16px; }
article ul, article ol { margin: 0 0 16px; padding-left: 22px; }
article li { margin: 6px 0; }
blockquote { margin: 16px 0; padding: 12px 16px; border-left: 3px solid var(--grad2); background: var(--soft); border-radius: 8px; color: var(--ink); }
blockquote p:last-child { margin: 0; }
.lead { font-size: 20px; color: var(--muted); }
.cta-box { margin: 34px 0; padding: 24px; border: 1px solid var(--line); border-radius: 16px; background: linear-gradient(135deg, #fff4f0, #fdeef4); text-align: center; }
.cta-box h3 { margin: 0 0 6px; font-size: 20px; }
.cta-box p { margin: 0 0 4px; color: var(--muted); font-size: 16px; }
.cta-box a { display: inline-block; margin-top: 12px; background: linear-gradient(135deg, var(--grad1), var(--grad2)); color: #fff; text-decoration: none; padding: 13px 24px; border-radius: 999px; font-weight: 700; }
.related { border-top: 1px solid var(--line); padding-top: 22px; margin-top: 40px; }
.related h2 { font-size: 18px; margin: 0 0 10px; }
.related ul { list-style: none; padding: 0; margin: 0; }
.related li { margin: 8px 0; }
footer.site { border-top: 1px solid var(--line); padding: 26px 0 40px; color: var(--muted); font-size: 14px; text-align: center; }
footer.site a { color: var(--muted); }
.guide-list { list-style: none; padding: 0; margin: 24px 0 0; }
.guide-list li { margin: 0 0 14px; }
.guide-list a { display: block; padding: 18px; border: 1px solid var(--line); border-radius: 14px; text-decoration: none; color: var(--ink); }
.guide-list a:hover { border-color: var(--grad2); }
.guide-list .t { font-weight: 700; font-size: 18px; }
.guide-list .d { color: var(--muted); font-size: 15px; margin-top: 4px; }
@media (prefers-color-scheme: dark) {
  :root { --ink: #f0ebe8; --muted: #a59d97; --line: #2a2320; --bg: #14110f; --soft: #1e1815; --accent: #ff6e86; }
  .cta-box { background: linear-gradient(135deg, #221a17, #241820); }
}