:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #5b6475;
  --line: #dfe4ec;
  --surface: #ffffff;
  --surface-soft: #f5f7fb;
  --accent: #3d5afe;
  --accent-dark: #2944d8;
  --max-width: 920px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--surface-soft);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at top right, rgba(61, 90, 254, 0.10), transparent 32rem),
    var(--surface-soft);
  font-family:
    -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", "Noto Sans",
    "Noto Sans SC", "Noto Sans TC", "Hiragino Sans", sans-serif;
  font-size: 16px;
  line-height: 1.72;
}

a {
  color: var(--accent-dark);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--accent);
}

.site-header {
  border-bottom: 1px solid rgba(223, 228, 236, 0.9);
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(16px);
}

.header-inner,
.page,
.footer-inner {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 70px;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: 18px;
  font-weight: 750;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 11px;
  color: #ffffff;
  background: linear-gradient(145deg, #5c73ff, #2944d8);
  box-shadow: 0 8px 22px rgba(41, 68, 216, 0.24);
  font-weight: 800;
}

.top-nav,
.language-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 16px;
}

.top-nav a,
.language-nav a {
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
}

.top-nav a:hover,
.language-nav a:hover,
.language-nav a[aria-current="page"] {
  color: var(--accent-dark);
}

.page {
  padding: 64px 0 80px;
}

.hero {
  padding: 36px 0 26px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 760;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.25;
  letter-spacing: -0.025em;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(38px, 8vw, 68px);
}

.legal h1 {
  font-size: clamp(36px, 6vw, 56px);
}

h2 {
  margin: 40px 0 12px;
  font-size: 26px;
}

h3 {
  margin: 24px 0 8px;
  font-size: 18px;
}

p,
ul {
  margin: 0 0 16px;
}

ul {
  padding-left: 1.4em;
}

.lede {
  max-width: 720px;
  margin-top: 20px;
  color: var(--muted);
  font-size: 20px;
}

.meta {
  margin-top: 14px;
  color: var(--muted);
  font-size: 14px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 34px 0;
}

.card,
.notice {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 18px 50px rgba(41, 52, 78, 0.06);
}

.card {
  padding: 24px;
}

.card h2 {
  margin: 0 0 10px;
  font-size: 20px;
}

.card p {
  color: var(--muted);
}

.card-link {
  font-weight: 700;
}

.notice {
  margin: 28px 0;
  padding: 20px 22px;
  border-color: rgba(61, 90, 254, 0.24);
  background: rgba(238, 241, 255, 0.9);
}

.notice p:last-child,
.card p:last-child {
  margin-bottom: 0;
}

.legal article {
  margin-top: 34px;
  padding: clamp(24px, 5vw, 52px);
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: 0 24px 70px rgba(41, 52, 78, 0.07);
}

.language-nav {
  margin-top: 24px;
}

.language-nav a {
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
}

.language-nav a[aria-current="page"] {
  background: #e9edff;
  font-weight: 700;
}

.faq {
  border-top: 1px solid var(--line);
  padding: 24px 0 8px;
}

.faq:first-of-type {
  border-top: 0;
}

.faq h2 {
  margin-top: 0;
  font-size: 21px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 13px;
  color: #ffffff;
  background: var(--accent-dark);
  font-weight: 720;
  text-decoration: none;
}

.button:hover {
  color: #ffffff;
  background: var(--accent);
}

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.76);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 0;
  font-size: 14px;
}

.footer-inner p {
  margin: 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
}

@media (max-width: 720px) {
  .header-inner,
  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .header-inner {
    padding: 14px 0;
  }

  .page {
    padding: 38px 0 56px;
  }

  .cards {
    grid-template-columns: 1fr;
  }

  .legal article {
    border-radius: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}