/* Shared by smartsay.app and sayu.smartsay.app; no external resources. */
:root {
  color-scheme: light dark;
  --background: #fafbf9;
  --surface: #ffffff;
  --text: #182a35;
  --muted: #526674;
  --accent: #086e9e;
  --line: #dbe4e7;
  --tint: #eef7fa;
  --yellow: #ffd80a;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 2rem; }
body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.7;
  overflow-wrap: anywhere;
}
a { color: var(--accent); text-underline-offset: 0.2em; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; border-radius: 2px; }
img { display: block; max-width: 100%; height: auto; }
.site-header, .site-footer, main { width: min(1080px, calc(100% - 40px)); margin-inline: auto; }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 92px; border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 11px; color: var(--text); font-size: 17px; font-weight: 700; text-decoration: none; }
.brand img { flex: 0 0 32px; border-radius: 8px; }
.language-link { white-space: nowrap; font-size: 15px; text-decoration: none; }
.language-link span { margin-left: 4px; }
h1, h2 { line-height: 1.2; letter-spacing: -0.025em; text-wrap: balance; }
h1 { margin: 0 0 24px; font-size: clamp(36px, 7vw, 68px); font-weight: 750; }
h2 { margin: 40px 0 20px; font-size: 24px; }
p { margin: 0 0 22px; }
ul { margin: 18px 0 30px; padding-left: 24px; }
li { margin-bottom: 16px; padding-left: 3px; }
strong { font-weight: 650; }
.hero { padding: 72px 0 52px; max-width: 870px; }
.tagline { max-width: 770px; font-size: clamp(25px, 4.8vw, 44px); line-height: 1.3; letter-spacing: -0.025em; color: var(--muted); }
.hero-icon { margin-bottom: 32px; border-radius: 26px; }
.product-hero { padding-bottom: 56px; }
.apps-section h2, .contact-section h2 { font-size: 19px; }
.app-link { display: flex; align-items: center; gap: 24px; padding: 30px; background: var(--surface); border: 1px solid var(--line); border-radius: 18px; color: var(--text); text-decoration: none; }
.app-link img { flex: 0 0 76px; border-radius: 18px; }
.app-link strong { display: block; color: var(--accent); font-size: 24px; margin-bottom: 5px; }
.app-link span span { display: block; color: var(--muted); }
.app-link .arrow { margin-left: auto; font-size: 30px; color: var(--accent); }
.contact-section { margin-bottom: 58px; }
.product-details > h2:first-child { margin-top: 0; }
.product-details > ul { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 44px; list-style: none; padding: 0; margin: 24px 0 36px; }
.product-details > ul li { margin: 0; padding: 24px 0 26px; border-top: 1px solid var(--line); }
.product-details > ul strong { display: block; margin-bottom: 9px; font-size: 20px; }
.product-details > h2:nth-of-type(2) { padding-top: 18px; }
.product-details > h2:nth-of-type(2) + p { padding: 24px 26px; background: var(--tint); border-left: 4px solid var(--yellow); border-radius: 0 12px 12px 0; }
.document { max-width: 760px; padding-top: 60px; }
.document h1 { font-size: clamp(33px, 5.8vw, 48px); }
.document h2 { margin-top: 36px; }
.effective-date { color: var(--muted); font-size: 15px; margin-bottom: 30px; }
.privacy-note { background: var(--tint); padding: 22px 24px; border-left: 4px solid var(--yellow); border-radius: 0 12px 12px 0; margin: 30px 0 36px; }
.clause { margin-bottom: 26px; }
.chinese { border-top: 1px solid var(--line); margin-top: 64px; padding-top: 40px; font-size: 16px; line-height: 1.9; }
.chinese h2:first-child { margin-top: 0; }
.chinese p { margin-bottom: 22px; }
.site-footer { margin-top: 64px; padding: 26px 0 30px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; line-height: 1.8; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 12px 24px; margin-bottom: 16px; }
.site-footer nav a { font-size: 15px; text-decoration: none; }
.site-footer p { margin: 0; }
@media (max-width: 600px) {
  .site-header, .site-footer, main { width: calc(100% - 36px); }
  .site-header { min-height: 76px; }
  .brand { font-size: 16px; gap: 9px; }
  .hero { padding-top: 48px; padding-bottom: 32px; }
  .hero-icon { width: 92px; height: 92px; border-radius: 22px; margin-bottom: 26px; }
  h1 { margin-bottom: 18px; }
  .tagline { font-size: 28px; }
  .app-link { padding: 22px 18px; gap: 16px; align-items: flex-start; }
  .app-link img { width: 56px; flex-basis: 56px; border-radius: 13px; }
  .app-link strong { font-size: 21px; }
  .app-link .arrow { display: none; }
  .product-details > ul { grid-template-columns: minmax(0, 1fr); }
  .document { padding-top: 40px; }
  .chinese { margin-top: 42px; padding-top: 30px; }
  .site-footer { margin-top: 48px; }
}
@media (prefers-color-scheme: dark) {
  :root {
    --background: #101a22;
    --surface: #17252f;
    --text: #f1f5f7;
    --muted: #b3c2ce;
    --accent: #7cd5ff;
    --line: #34444f;
    --tint: #1a2e3b;
  }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }