:root {
  --bg: #0c0d10;
  --surface: #121316;
  --line: rgba(255, 255, 255, 0.10);
  --text: #e5e5e5;
  --muted: #a3a3a3;
  --faint: #8a8a8a;
}

* { box-sizing: border-box; }

html {
  background: var(--bg);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 0 24px;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.7 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: 680px;
  margin: 0 auto;
}

a {
  color: var(--text);
  text-decoration-color: var(--faint);
  text-underline-offset: 3px;
}

a:hover { text-decoration-color: var(--text); }

a:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 3px;
  border-radius: 2px;
}

/* 一屏介绍页 */

.hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 0;
  padding: 48px 0;
}

.hero img {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  display: block;
}

.hero h1 {
  margin: 24px 0 4px;
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.hero .subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  letter-spacing: 0.02em;
}

.hero .pitch {
  margin: 24px 0 0;
  max-width: 34em;
  color: var(--muted);
}

.hero nav {
  margin-top: 36px;
  display: flex;
  gap: 28px;
  font-size: 15px;
}

.hero nav a { text-decoration: none; color: var(--muted); }
.hero nav a:hover { color: var(--text); }

.store-slot {
  margin-top: 28px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 内页 */

.page {
  padding: 72px 0 96px;
}

.page h1 {
  margin: 0 0 6px;
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.page h2 {
  margin: 40px 0 6px;
  font-size: 17px;
  font-weight: 600;
}

.page p { margin: 0 0 14px; }

.meta {
  color: var(--faint);
  font-size: 14px;
}

.back {
  display: inline-block;
  margin-bottom: 36px;
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
}

.back:hover { color: var(--text); }

.contact {
  margin-top: 32px;
  padding: 20px 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
}

.contact a {
  font-size: 18px;
  word-break: break-all;
}

footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-size: 13px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

footer a { color: var(--faint); }
footer a:hover { color: var(--muted); }