:root {
  font-family: system-ui, -apple-system, "Segoe UI", "Noto Sans TC", sans-serif;
  color: #17324d;
  background: #f5f8fb;
}
body { margin: 0; min-height: 100vh; line-height: 1.7; }
.site-header {
  width: min(100% - 2rem, 920px);
  margin: 1rem auto 0;
  padding: .75rem 0;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
}
.site-header a { color: #155e75; }
.page-shell {
  box-sizing: border-box;
  width: min(100% - 2rem, 760px);
  margin: 2rem auto;
  padding: 2rem;
  border: 1px solid #cbd8e4;
  border-radius: 20px;
  background: #fff;
}
.eyebrow { color: #176b87; font-weight: 800; }
.page-description { color: #52657d; }
.service-area { margin-top: 2rem; }
.service-list { }
.service-card {
  width: 100%;
  padding: 1.25rem;
  border: 1px solid #b9cddd;
  background: #f7fbfc;
}
.service-list {
  display: grid;
  gap: 1rem;
}
.service-card { box-sizing: border-box; }
a:focus-visible { outline: 3px solid #1d4ed8; outline-offset: 3px; }
@media (max-width: 560px) {
  .site-header { align-items: flex-start; flex-direction: column; }
  .page-shell { margin: 1rem auto; padding: 1rem; }
}