/* Shared styles for Rewarding Quest for Family public content pages (SEO/GEO landing + FAQ).
   Standalone from the app UI: clean, light, readable, responsive. */
:root {
  --c-ink: #221a3a;
  --c-body: #4a4368;
  --c-muted: #7b7595;
  --c-violet: #7c5cff;
  --c-violet-d: #5a3fd6;
  --c-gold: #f0a93a;
  --c-line: #ece8fb;
  --c-bg: #fbfaff;
  --c-card: #ffffff;
  --c-soft: #f4f1ff;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--c-body);
  background: var(--c-bg);
  line-height: 1.7;
  font-size: 17px;
}
a { color: var(--c-violet-d); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header { border-bottom: 1px solid var(--c-line); background: var(--c-card); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.site-header .brand { font-weight: 800; font-size: 17px; color: var(--c-ink); }
.site-header .brand span { background: linear-gradient(135deg, var(--c-violet), var(--c-gold)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.site-header .nav a { margin-left: 18px; font-size: 15px; color: var(--c-body); }
.site-header .nav a.cta { background: var(--c-violet); color: #fff; padding: 8px 16px; border-radius: 999px; font-weight: 700; }
.site-header .nav a.cta:hover { background: var(--c-violet-d); text-decoration: none; }

/* Article */
main { padding: 40px 0 8px; }
h1 { font-size: clamp(28px, 5vw, 38px); line-height: 1.18; color: var(--c-ink); font-weight: 800; margin: 0 0 14px; letter-spacing: -.01em; }
.lead { font-size: 19px; color: var(--c-body); margin: 0 0 28px; }
h2 { font-size: clamp(21px, 3.4vw, 25px); color: var(--c-ink); font-weight: 800; margin: 38px 0 12px; line-height: 1.25; }
h3 { font-size: 18px; color: var(--c-ink); font-weight: 700; margin: 22px 0 6px; }
p { margin: 0 0 16px; }
ul { margin: 0 0 18px; padding-left: 4px; list-style: none; }
ul li { position: relative; padding-left: 24px; margin-bottom: 9px; }
ul li::before { content: "\2726"; position: absolute; left: 2px; top: 1px; color: var(--c-gold); }

/* Comparison table */
.cmp-wrap { overflow-x: auto; margin: 18px 0 26px; }
table { border-collapse: collapse; width: 100%; font-size: 15px; min-width: 460px; }
caption { text-align: left; color: var(--c-muted); font-size: 14px; margin-bottom: 8px; }
th, td { text-align: left; padding: 11px 13px; border-bottom: 1px solid var(--c-line); vertical-align: top; }
thead th { color: var(--c-ink); font-weight: 700; border-bottom: 2px solid var(--c-line); }
tbody th { font-weight: 600; color: var(--c-body); }
table th:last-child, table td:last-child { background: var(--c-soft); color: var(--c-ink); }

/* FAQ */
.faq { margin: 14px 0 8px; }
.faq details { border-bottom: 1px solid var(--c-line); padding: 4px 0; }
.faq summary { cursor: pointer; font-weight: 700; color: var(--c-ink); padding: 12px 0; font-size: 17px; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--c-violet); font-weight: 700; }
.faq details[open] summary::after { content: "\2013"; }
.faq details p { margin: 0 0 14px; color: var(--c-body); }

/* CTA */
.cta-box { background: var(--c-soft); border: 1px solid var(--c-line); border-radius: 16px; padding: 26px 22px; text-align: center; margin: 36px 0 8px; }
.cta-box .btn { display: inline-block; background: linear-gradient(135deg, var(--c-violet), var(--c-violet-d)); color: #fff; font-weight: 800; padding: 13px 28px; border-radius: 999px; font-size: 16px; }
.cta-box .btn:hover { filter: brightness(1.05); text-decoration: none; }
.cta-box .note { color: var(--c-muted); font-size: 14px; margin: 12px 0 0; }

/* Footer */
.site-footer { border-top: 1px solid var(--c-line); margin-top: 44px; padding: 26px 0 40px; color: var(--c-muted); font-size: 14px; }
.site-footer a { color: var(--c-body); margin-right: 16px; }
.site-footer .fnav { margin-bottom: 12px; }

@media (max-width: 520px) {
  body { font-size: 16px; }
  main { padding: 28px 0 4px; }
  .site-header .wrap { height: 56px; }
  .site-header .brand { font-size: 14px; line-height: 1.2; max-width: 60%; }
  .site-header .nav a:not(.cta) { display: none; }
  .site-header .nav a.cta { white-space: nowrap; padding: 8px 15px; font-size: 14px; }
}

/* Product screenshots on content pages */
figure.shot { margin: 24px auto; max-width: 400px; text-align: center; }
figure.shot.wide { max-width: 680px; }
figure.shot img { width: 100%; height: auto; border-radius: 16px; border: 1px solid var(--c-line); box-shadow: 0 10px 30px rgba(124, 92, 255, .12); }
figure.shot figcaption { font-size: 13.5px; color: var(--c-muted); margin-top: 9px; line-height: 1.55; }

/* v173 demo CTA：次级按钮观感，区别于主 CTA */
.cta.cta-demo { background: transparent; color: inherit; border: 1.5px solid currentColor; opacity: .92; margin-left: 8px; }