:root {
  --bg: #0f1419;
  --bg-soft: #1a222c;
  --text: #e8eef4;
  --muted: #9aa8b5;
  --accent: #c4a35a;
  --line: rgba(255, 255, 255, 0.08);
  --max: 720px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background: radial-gradient(1200px 600px at 20% -10%, #243041 0%, transparent 55%),
    radial-gradient(900px 500px at 100% 0%, #1d2a22 0%, transparent 50%), var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.wrap {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  padding: 2.5rem 0 4rem;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 0 2rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 2rem;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text);
  text-decoration: none;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.1rem;
  font-size: 0.95rem;
}

.nav a {
  color: var(--muted);
}

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

.hero {
  padding: 3.5rem 0 2rem;
  text-align: center;
}

.hero h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
}

.hero .en {
  margin: 0 0 1.5rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.badge {
  display: inline-block;
  margin-bottom: 1.25rem;
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--accent);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.downloads {
  display: grid;
  gap: 0.75rem;
  margin: 2rem auto 0;
  max-width: 360px;
}

.dl {
  display: block;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  text-align: center;
  cursor: default;
  text-decoration: none;
}

.dl strong {
  display: block;
  color: var(--text);
  margin-bottom: 0.15rem;
}

.legal h1,
.contact h1 {
  margin: 0 0 0.35rem;
  font-size: 1.85rem;
}

.meta {
  color: var(--muted);
  margin: 0 0 1.75rem;
  font-size: 0.95rem;
}

.legal h2 {
  margin: 1.75rem 0 0.6rem;
  font-size: 1.15rem;
}

.legal h3 {
  margin: 1rem 0 0.4rem;
  font-size: 1rem;
  color: var(--muted);
  font-weight: 600;
}

.legal p,
.contact p {
  margin: 0.45rem 0;
}

.legal ul {
  margin: 0.4rem 0 0.8rem;
  padding-left: 1.2rem;
}

.legal li {
  margin: 0.25rem 0;
}

.card {
  margin-top: 1.25rem;
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
}

.site-footer {
  margin-top: 3rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
}