:root {
  --background: hsl(0 0% 100%);
  --foreground: hsl(222.2 84% 4.9%);
  --card: hsl(0 0% 100%);
  --muted-foreground: hsl(215.4 16.3% 46.9%);
  --primary: hsl(221.2 83.2% 53.3%);
  --border: hsl(214.3 31.8% 91.4%);
  --ring: hsl(221.2 83.2% 53.3%);
  --radius: 0.75rem;
  --shadow: 0 10px 30px -12px hsl(221 83% 53% / 0.18);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: hsl(222.2 84% 4.9%);
    --foreground: hsl(210 40% 98%);
    --card: hsl(222.2 47% 8%);
    --muted-foreground: hsl(215 20.2% 65.1%);
    --primary: hsl(217.2 91.2% 59.8%);
    --border: hsl(217.2 32.6% 17.5%);
    --ring: hsl(224.3 76.3% 48%);
    --shadow: 0 10px 30px -12px hsl(217 91% 60% / 0.25);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(60rem 30rem at 50% -10%, hsl(221 83% 53% / 0.10), transparent 60%),
    var(--background);
  color: var(--foreground);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

.page {
  min-height: 100vh;
  min-height: 100dvh;
  max-width: 640px;
  margin: 0 auto;
  padding: 12vh 24px 40px;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.hero { text-align: center; }

.logo {
  display: block;
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  filter: drop-shadow(0 6px 16px hsl(221 83% 53% / 0.25));
}

h1 {
  margin: 0;
  font-size: 2rem;
  letter-spacing: -0.02em;
}

.tagline {
  margin: 6px 0 0;
  color: var(--primary);
  font-weight: 600;
}

.intro {
  max-width: 30rem;
  margin: 14px auto 0;
  color: var(--muted-foreground);
  font-size: 0.95rem;
}

.entries {
  display: grid;
  gap: 12px;
}

.entry {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: inherit;
  text-decoration: none;
  box-shadow: var(--shadow);
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.entry:hover {
  transform: translateY(-2px);
  border-color: var(--ring);
}

.entry:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

.entry-main {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.entry-title { font-weight: 600; }

.entry-desc {
  color: var(--muted-foreground);
  font-size: 0.875rem;
}

.entry-arrow {
  color: var(--primary);
  font-size: 1.25rem;
}

.footer {
  margin-top: auto;
  text-align: center;
  color: var(--muted-foreground);
  font-size: 0.8rem;
}

.dot { margin: 0 6px; }

@media (max-width: 480px) {
  .page { padding-top: 9vh; gap: 32px; }
  h1 { font-size: 1.75rem; }
}