:root {
  color-scheme: light;
  --seo-ink: #1f2b2a;
  --seo-muted: #5b6a67;
  --seo-line: #d8e0da;
  --seo-paper: #f7f8f2;
  --seo-card: rgba(255, 255, 252, .9);
  --seo-accent: #df593f;
  --seo-accent-dark: #b74332;
  font-family: "Segoe UI", "Noto Sans", sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; color: var(--seo-ink); background: radial-gradient(circle at 10% 0%, #e8f0e4 0, transparent 38rem), var(--seo-paper); line-height: 1.65; }
.seo-shell { width: min(920px, calc(100% - 32px)); margin: 0 auto; padding: 56px 0 72px; }
.seo-brand { color: var(--seo-ink); font-size: .78rem; font-weight: 800; letter-spacing: .14em; text-decoration: none; }
.seo-languages { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 24px; }
.seo-languages a { padding: 5px 8px; border: 1px solid var(--seo-line); border-radius: 7px; color: var(--seo-muted); background: rgba(255,255,252,.7); font-size: .72rem; font-weight: 700; line-height: 1; text-decoration: none; }
.seo-languages a[aria-current="page"] { border-color: rgba(183,67,50,.3); color: var(--seo-accent-dark); background: rgba(223,89,63,.08); }
.seo-kicker { margin: 52px 0 12px; color: var(--seo-accent-dark); font-size: .75rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
h1 { max-width: 820px; margin: 0; font-size: clamp(2.1rem, 6vw, 4.6rem); line-height: 1.02; letter-spacing: -.055em; }
h2 { margin: 42px 0 12px; font-size: clamp(1.25rem, 3vw, 1.8rem); line-height: 1.1; letter-spacing: -.025em; }
h3 { margin: 0; font-size: 1rem; line-height: 1.35; letter-spacing: -.01em; }
.seo-lede { max-width: 720px; margin: 24px 0 0; color: var(--seo-muted); font-size: 1.08rem; }
.seo-section-intro { max-width: 720px; margin: 0 0 16px; color: var(--seo-muted); }
.seo-codes { display: flex; flex-wrap: wrap; gap: 10px; }
code { display: inline-block; padding: 7px 10px; border: 1px solid var(--seo-line); border-radius: 8px; color: #3c4b48; background: #eef2e9; font: 600 .86rem/1.2 ui-monospace, SFMono-Regular, Consolas, monospace; }
.seo-steps { display: grid; gap: 10px; margin: 0; padding: 0; list-style: none; counter-reset: seo-step; }
.seo-steps li { display: grid; grid-template-columns: 38px 1fr; gap: 12px; align-items: center; padding: 13px 15px; border: 1px solid var(--seo-line); border-radius: 12px; background: var(--seo-card); }
.seo-steps li span { color: var(--seo-accent-dark); font: 800 .8rem/1 ui-monospace, monospace; }
.seo-faq { display: grid; gap: 8px; }
.seo-trouble-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.seo-trouble-grid article { padding: 16px; border: 1px solid var(--seo-line); border-radius: 12px; background: var(--seo-card); }
.seo-trouble-grid article p { margin: 8px 0 0; color: var(--seo-muted); font-size: .94rem; }
details { border: 1px solid var(--seo-line); border-radius: 12px; background: var(--seo-card); }
summary { cursor: pointer; padding: 14px 16px; font-weight: 750; }
details p { margin: -2px 16px 16px; color: var(--seo-muted); }
.seo-note { margin: 40px 0 20px; padding: 15px 17px; border-left: 3px solid var(--seo-accent); color: var(--seo-muted); background: rgba(223, 89, 63, .08); }
.seo-cta { display: inline-flex; gap: 12px; align-items: center; padding: 12px 17px; border-radius: 10px; color: #fff; background: var(--seo-accent); font-weight: 800; text-decoration: none; }
.seo-cta:hover { background: var(--seo-accent-dark); }
.seo-related { display: flex; flex-wrap: wrap; gap: 10px; }
.seo-related a, .seo-footer a { color: var(--seo-accent-dark); font-weight: 700; text-decoration: none; }
.seo-related a { padding: 8px 11px; border: 1px solid var(--seo-line); border-radius: 9px; background: var(--seo-card); }
.seo-footer { width: min(920px, calc(100% - 32px)); margin: 0 auto; padding: 22px 0 42px; border-top: 1px solid var(--seo-line); color: var(--seo-muted); font-size: .88rem; }
.seo-footer nav { display: flex; flex-wrap: wrap; gap: 14px; }
@media (max-width: 620px) { .seo-shell { padding-top: 34px; } .seo-kicker { margin-top: 38px; } .seo-lede { font-size: 1rem; } .seo-trouble-grid { grid-template-columns: 1fr; } }