:root {
  --bg: #f5f3ff;
  --paper: #ffffff;
  --ink: #2e1065;
  --brand: #5b21b6;
  --line: #ddd6fe;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: "Avenir Next", "Microsoft YaHei", sans-serif;
  background: radial-gradient(circle at top, #ede9fe 0%, var(--bg) 42%);
  color: var(--ink);
  line-height: 1.7;
}
a { color: var(--brand); }
.site-header { position: sticky; top: 0; z-index: 8; }
.header-inner {
  width: min(760px, calc(100% - 20px));
  margin: 12px auto 0;
  background: rgba(255,255,255,0.92);
  border: 1px solid var(--line);
  border-radius: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
}
.brand { display: flex; gap: 8px; align-items: center; text-decoration: none; color: var(--ink); font-weight: 800; }
.brand svg { width: 22px; height: 22px; }
.nav { display: flex; gap: 4px; }
.nav a { text-decoration: none; color: var(--ink); padding: 8px 10px; border-radius: 999px; font-size: 14px; }
.nav a.is-current { background: var(--brand); color: #fff; }
.wrap { width: min(760px, calc(100% - 20px)); margin: 0 auto; }
.hero { padding: 28px 0 8px; }
.hero h1 { font-size: 28px; }
.cta-row { display: grid; gap: 10px; }
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--brand);
  color: #fff;
  text-decoration: none;
  border-radius: 16px;
  padding: 14px;
  font-weight: 800;
  font-size: 17px;
}
.btn-mac { background: #4c1d95; }
.btn-ios { background: #1e1b4b; }
.btn-and { background: #3f6212; }
section { padding: 18px 0; }
.card, .review, .news-item, .faq-item, .hero, table, .step {
  background: var(--paper);
  border-radius: 20px;
  border: 1px solid var(--line);
  padding: 16px;
  margin-bottom: 12px;
}
table { width: 100%; border-collapse: collapse; display: block; overflow-x: auto; }
th, td { padding: 8px; text-align: left; border-bottom: 1px solid var(--line); }
.steps { display: grid; gap: 8px; }
.step { display: block; }
.step b { color: var(--brand); }
.site-footer {
  width: min(760px, calc(100% - 20px));
  margin: 12px auto 28px;
  background: #2e1065;
  color: #e9d5ff;
  border-radius: 20px;
  padding: 20px;
}
.foot-nav a { color: #ddd6fe; margin-right: 10px; }