/* The site wears the app's palette: warm paper, ink, one burgundy accent. */
:root {
  --background: #faf9f6;
  --paper: #ffffff;
  --ivory: #fffcf7;
  --ink: #221f20;
  --muted: #6c6662;
  --accent: #742d3d;
  --line: #e7e3df;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --serif: Didot, "Bodoni MT", Baskerville, "Songti SC", "STSong", Georgia, serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--background);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
}

:lang(zh) body, html[lang="zh-Hans"] body {
  font-family: var(--sans);
}

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

.wrap { max-width: 720px; margin: 0 auto; padding: 0 24px; }

/* Masthead */
header.top {
  border-bottom: 1px solid var(--line);
  background: var(--background);
}
header.top .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
}
.wordmark {
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: 0.22em;
  text-decoration: none;
  color: var(--ink);
}
nav a {
  font-size: 13px;
  margin-left: 18px;
  text-decoration: none;
  color: var(--muted);
}
nav a:hover, nav a[aria-current="page"] { color: var(--ink); }
.lang {
  margin-left: 18px;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--accent);
  font: inherit;
  font-size: 12px;
  padding: 6px 12px;
  cursor: pointer;
}

/* Editorial type */
.eyebrow {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 10px;
}
h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 42px;
  line-height: 1.25;
  margin: 0 0 18px;
}
h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 26px;
  margin: 0 0 14px;
}
h3 { font-size: 15px; font-weight: 600; margin: 0 0 6px; }
p { margin: 0 0 16px; }
.lede { font-size: 18px; color: var(--muted); }

section { padding: 56px 0; border-top: 1px solid var(--line); }
section:first-of-type { border-top: 0; }
.hero { padding: 76px 0 56px; }

/* Cards */
.cards { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
@media (min-width: 620px) { .cards { grid-template-columns: 1fr 1fr; } }
.card { background: var(--paper); padding: 22px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }

.plan {
  background: var(--ivory);
  border: 1px solid rgba(116, 45, 61, 0.25);
  padding: 24px;
}
.plan .price { font-family: var(--serif); font-size: 28px; margin: 0 0 4px; }
.plan ul { margin: 16px 0 0; padding-left: 18px; color: var(--muted); font-size: 14px; }
.plan li { margin-bottom: 8px; }

.note { font-size: 13px; color: var(--muted); }

/* Legal pages */
.legal h2 { margin-top: 36px; font-size: 22px; }
.legal h2:first-of-type { margin-top: 0; }
.legal ul { padding-left: 20px; }
.legal li { margin-bottom: 8px; }
.legal table { width: 100%; border-collapse: collapse; margin: 0 0 18px; font-size: 14px; }
.legal th, .legal td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: top; background: var(--paper); }
.legal th { font-weight: 600; }
.updated { font-size: 13px; color: var(--muted); }

footer {
  border-top: 1px solid var(--line);
  padding: 34px 0 48px;
  font-size: 13px;
  color: var(--muted);
}
footer a { margin-right: 16px; }
.rule {
  display: flex; align-items: center; gap: 10px;
  margin: 0 0 22px; color: var(--muted);
}
.rule::before, .rule::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.rule span { font-family: var(--serif); font-size: 13px; letter-spacing: 0.22em; }

/* Language switching: one document, two texts. */
[data-lang] { display: none; }
html[lang="zh-Hans"] [data-lang="zh"] { display: revert; }
html[lang="en"] [data-lang="en"] { display: revert; }