* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ds-ink-strong);
  background: linear-gradient(135deg, var(--ds-bg-aqua), var(--ds-surface-clean) 56%, var(--ds-bg-aqua));
  font-family: var(--ds-font-sans);
  line-height: var(--ds-leading-body);
}
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 3px solid var(--ds-brand-blue); outline-offset: 6px; }
.wrap { width: min(1160px, calc(100% - 64px)); margin-inline: auto; }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 28px; }
.brand { display: flex; gap: 12px; align-items: center; font-size: 19px; font-weight: 750; }
.brand img { object-fit: contain; }
.contact-link { font-size: 14px; white-space: nowrap; color: var(--ds-accent-strong); }
.contact-link span { margin-left: 10px; }
.hero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, 350px); gap: clamp(30px, 5vw, 80px); align-items: center; padding-block: 58px 64px; }
.intro { min-width: 0; }
.eyebrow { color: var(--ds-accent-strong); font-size: 13px; font-weight: 650; margin: 0 0 20px; }
h1 { margin: 0; font-size: clamp(38px, 4.7vw, 62px); line-height: 1.3; letter-spacing: -.045em; font-weight: 800; }
h1 span { color: var(--ds-brand-blue); }
.description { margin: 26px 0; color: var(--ds-muted); font-size: 17px; line-height: 1.9; max-width: 470px; }
.primary-link { display: inline-flex; align-items: center; gap: 44px; border-radius: var(--ds-radius-md); padding: 14px 24px; color: var(--ds-surface-clean); background: var(--ds-brand-blue); font-size: 16px; font-weight: 650; transition: transform var(--ds-motion-fast), background var(--ds-motion-fast); }
.primary-link:hover { transform: translateY(-2px); background: var(--ds-accent-strong); }
.intro-note { margin: 16px 0 0; font-size: 13px; color: var(--ds-muted); }
.contact { text-align: center; background: var(--ds-paper-strong); border: 1px solid var(--ds-line-strong); padding: 28px; border-radius: var(--ds-radius-stage); box-shadow: var(--ds-shadow-sm); scroll-margin-top: 24px; }
.contact .eyebrow { margin-bottom: 6px; }
.contact h2 { margin: 0 0 20px; font-size: 24px; font-weight: 700; }
.qr-link { display: block; width: min(248px, 100%); margin-inline: auto; }
.qr { width: 100%; height: auto; display: block; }
.qr-hint { margin: 20px 0 5px; font-size: 14px; }
.wechat { margin: 0; font-size: 14px; color: var(--ds-muted); }
.wechat strong { color: var(--ds-ink); margin-left: 8px; font-size: 17px; font-weight: 650; user-select: all; }
.mobile-hint { color: var(--ds-muted); font-size: 12px; margin: 10px 0 0; }
.services { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); gap: 32px; padding-block: 34px 42px; border-top: 1px solid var(--ds-line-strong); }
.services article { display: flex; gap: 16px; min-width: 0; }
.number { font-size: 13px; font-weight: 650; color: var(--ds-accent-strong); padding-top: 7px; }
.services h2 { font-size: 19px; margin: 0 0 9px; }
.services p { color: var(--ds-muted); font-size: 14px; margin: 0; max-width: 280px; }
.site-footer { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 28px; border-top: 1px solid var(--ds-line-strong); padding-block: 22px 28px; color: var(--ds-muted); font-size: 12px; }
.filings { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.filings a:hover, .contact-link:hover { text-decoration: underline; text-underline-offset: 4px; }
@media (max-width: 700px) {
  .wrap { width: calc(100% - 40px); }
  .site-header { padding-block: 20px; }
  .brand { font-size: 16px; gap: 8px; }
  .brand img { width: 36px; height: 36px; }
  .contact-link { font-size: 13px; }
  .contact-link span { margin-left: 3px; }
  .hero { grid-template-columns: minmax(0, 1fr); padding-block: 30px 40px; gap: 32px; }
  h1 { font-size: clamp(34px, 8.7vw, 54px); }
  .description { font-size: 16px; margin-block: 20px; }
  .contact { width: min(100%, 360px); justify-self: center; padding: 24px; }
  .services { padding-block: 28px; gap: 24px; }
  .services p { max-width: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .primary-link { transition: none; }
}