:root {
  color-scheme: dark;
  --background: #070812;
  --surface: rgba(18, 22, 43, 0.82);
  --border: rgba(126, 231, 255, 0.18);
  --text: #f4f7ff;
  --muted: #aeb8d0;
  --accent: #74e5ff;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  padding: max(28px, env(safe-area-inset-top)) max(20px, env(safe-area-inset-right)) max(40px, env(safe-area-inset-bottom)) max(20px, env(safe-area-inset-left));
  background:
    radial-gradient(circle at 15% 0%, rgba(82, 69, 171, 0.24), transparent 38rem),
    radial-gradient(circle at 90% 20%, rgba(29, 171, 191, 0.16), transparent 34rem),
    var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
}

main {
  width: min(760px, 100%);
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 34px;
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 10px;
}

h1 {
  margin: 0 0 8px;
  font-size: clamp(30px, 7vw, 44px);
  line-height: 1.18;
}

.lead {
  margin: 0 0 28px;
  color: var(--muted);
}

section {
  margin: 14px 0;
  padding: 22px 24px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--surface);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

h2 {
  margin: 0 0 8px;
  font-size: 19px;
}

p,
ul {
  margin: 8px 0 0;
}

ul {
  padding-left: 1.25em;
}

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

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.action {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid rgba(116, 229, 255, 0.38);
  border-radius: 12px;
  background: rgba(116, 229, 255, 0.1);
  font-weight: 650;
  text-decoration: none;
}

footer {
  margin-top: 26px;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 520px) {
  body {
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
  }

  section {
    padding: 18px;
    border-radius: 15px;
  }
}