:root {
  color-scheme: dark;
  --bg: #111426;
  --panel: rgba(27, 32, 58, 0.82);
  --text: #f5f7ff;
  --muted: #b9c1d9;
  --line: rgba(130, 160, 255, 0.18);
  --accent: #58d6ff;
  --accent-2: #ffb45f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #273057 0, var(--bg) 52%);
  color: var(--text);
  line-height: 1.58;
}

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

.page {
  width: min(900px, calc(100% - 32px));
  margin: 0 auto;
  padding: 40px 0 56px;
}

.hero,
.section {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px;
  margin-bottom: 18px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.24);
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--accent-2);
  font-weight: 700;
  letter-spacing: 0.02em;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: 38px;
  line-height: 1.12;
  margin-bottom: 10px;
}

h2 {
  font-size: 22px;
  margin-bottom: 18px;
}

h3 {
  font-size: 17px;
  margin-bottom: 6px;
}

.lead {
  color: var(--muted);
  max-width: 680px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 12px;
  background: rgba(88, 214, 255, 0.14);
  border: 1px solid rgba(88, 214, 255, 0.28);
  text-decoration: none;
  font-weight: 700;
}

.item {
  border-top: 1px solid var(--line);
  padding-top: 16px;
  margin-top: 16px;
}

.item:first-of-type {
  border-top: 0;
  padding-top: 0;
  margin-top: 0;
}

.zh {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
}

.contact .note {
  color: var(--accent-2);
  font-size: 14px;
}

@media (max-width: 520px) {
  .page {
    width: min(100% - 24px, 900px);
    padding-top: 24px;
  }

  .hero,
  .section {
    padding: 22px;
    border-radius: 14px;
  }

  h1 {
    font-size: 31px;
  }
}