:root {
  --yellow: #fdce02;
  --charcoal: #232426;
  --ink: #f4efe3;
  --muted: #a8a49a;
  --line: rgba(253, 206, 2, 0.18);
  --card: #2c2d30;
  --max: 72rem;
  --radius: 1.25rem;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--charcoal);
  color: var(--ink);
  font-family: "Avenir Next", "Segoe UI", "PingFang SC", "PingFang TC", "Hiragino Sans GB", "Hiragino Sans CNS", "Noto Sans SC", "Noto Sans TC", sans-serif;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

html[lang="zh-Hant"], html[lang="zh-Hant"] body {
  font-family: "Avenir Next", "PingFang TC", "Hiragino Sans CNS", "Noto Sans TC", sans-serif;
}

img { max-width: 100%; height: auto; }
a { color: var(--yellow); text-underline-offset: 0.18em; }
a:hover { color: #ffe56a; }

.wrap {
  width: min(calc(100% - 2rem), var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(35, 36, 38, 0.86);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 4.25rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: inherit;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.brand img {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.65rem;
}
.nav-links {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.95rem;
}
.nav-links a { color: var(--ink); text-decoration: none; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--yellow); }
.lang {
  display: flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
}
.lang a {
  padding: 0.28rem 0.55rem;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.82rem;
  white-space: nowrap;
}
.lang a[aria-current="true"] {
  background: var(--yellow);
  color: var(--charcoal);
  font-weight: 700;
}

.hero {
  padding: 4.5rem 0 3rem;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3rem;
  align-items: center;
}
.kicker {
  color: var(--yellow);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.78rem;
  margin: 0 0 0.8rem;
}
h1 {
  font-family: Georgia, "Songti SC", "Songti TC", "Noto Serif SC", "Noto Serif TC", serif;
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
  margin: 0 0 1rem;
  font-weight: 700;
}
.lede {
  font-size: 1.2rem;
  color: var(--muted);
  max-width: 38rem;
}
.actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 1.8rem; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.7rem 1.25rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
}
.btn-primary { background: var(--yellow); color: var(--charcoal); }
.btn-primary:hover { color: var(--charcoal); background: #ffe56a; }
.btn-ghost {
  border: 1px solid var(--line);
  color: var(--ink);
}
.hero-card {
  background:
    radial-gradient(circle at 70% 20%, rgba(253, 206, 2, 0.16), transparent 42%),
    var(--card);
  border: 1px solid var(--line);
  border-radius: 2rem;
  padding: 2rem;
  text-align: center;
}
.hero-card img {
  width: 11rem;
  border-radius: 1.6rem;
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.35);
}
.hero-card p { color: var(--muted); margin: 1.1rem 0 0; }

section { padding: 1.2rem 0 3.2rem; }
h2 {
  font-family: Georgia, "Songti SC", "Songti TC", "Noto Serif SC", "Noto Serif TC", serif;
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  letter-spacing: -0.03em;
  margin: 0 0 1.2rem;
}
.grid-3, .grid-2 {
  display: grid;
  gap: 1rem;
}
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: 1fr 1fr; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.3rem 1.35rem 1.4rem;
}
.card h3 { margin: 0 0 0.45rem; font-size: 1.08rem; }
.card p, .card li { color: var(--muted); margin: 0; }
.num {
  display: inline-block;
  color: var(--charcoal);
  background: var(--yellow);
  border-radius: 999px;
  min-width: 1.7rem;
  height: 1.7rem;
  line-height: 1.7rem;
  text-align: center;
  font-weight: 800;
  font-size: 0.85rem;
  margin-bottom: 0.7rem;
}

.faq details {
  border-top: 1px solid var(--line);
  padding: 0.9rem 0;
}
.faq summary {
  cursor: pointer;
  font-weight: 700;
}
.faq p { color: var(--muted); margin: 0.6rem 0 0; }

.legal {
  max-width: 46rem;
  padding: 3rem 0 4rem;
}
.legal h1 { font-size: clamp(2rem, 5vw, 3rem); }
.legal h2 { margin-top: 2rem; }
.legal p, .legal li { color: var(--muted); }
.legal strong { color: var(--ink); }
.updated { color: var(--yellow); font-size: 0.92rem; }

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.6rem 0 2.4rem;
  color: var(--muted);
  font-size: 0.92rem;
}
.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.site-footer a { color: var(--muted); }

@media (max-width: 860px) {
  .hero, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .nav-links .hide-sm { display: none; }
  .lang a { padding: 0.26rem 0.42rem; font-size: 0.75rem; }
}