:root {
  --purple: #5b2c6f;
  --lav: #f4eef8;
  --gold: #c9a35b;
  --ink: #2a1833;
  --muted: #6b5276;
  --line: #e0d0ea;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: "Palatino Linotype", "STSong", "SimSun", "Microsoft YaHei", serif;
  background: var(--lav);
  color: var(--ink);
  line-height: 1.9;
  font-size: 16.5px;
}

.header {
  width: min(720px, calc(100% - 32px));
  margin: 0 auto;
  padding: 26px 0 8px;
  text-align: center;
}
.brand {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  color: var(--purple);
  font-weight: 700;
  font-size: 20px;
}
nav {
  display: flex;
  justify-content: center;
  gap: 0;
  margin: 18px auto 0;
  width: min(720px, calc(100% - 32px));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
nav a {
  flex: 1;
  text-align: center;
  padding: 10px 6px;
  text-decoration: none;
  color: var(--muted);
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  font-size: 14px;
}
nav a.current {
  color: var(--purple);
  box-shadow: inset 0 -3px 0 var(--gold);
  font-weight: 700;
}

.article {
  width: min(720px, calc(100% - 32px));
  margin: 28px auto 48px;
  background: #fff;
  padding: 36px 40px;
  box-shadow: 0 1px 0 var(--line);
}
.article h1 {
  font-size: 28px;
  text-align: center;
  margin-bottom: 16px;
  line-height: 1.45;
}
.lead {
  color: var(--muted);
  text-align: center;
  margin-bottom: 22px;
}
.cta-stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 18px 0 8px;
}
.btn {
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  text-align: center;
  text-decoration: none;
  padding: 12px 16px;
  background: var(--purple);
  color: #fff;
  font-weight: 700;
}
.btn-soft {
  background: transparent;
  color: var(--purple);
  border: 1px solid var(--purple);
}

.step {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 12px;
  margin: 22px 0;
}
.num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gold);
  color: #2a1833;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Segoe UI", sans-serif;
}
.article h2 {
  font-size: 21px;
  color: var(--purple);
  margin: 28px 0 10px;
  padding-bottom: 6px;
  border-bottom: 1px dotted var(--line);
}
p { margin-bottom: 12px; }
ul, ol { margin: 0 0 12px 22px; }
table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0 16px;
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  font-size: 14.5px;
}
th, td { border-bottom: 1px solid var(--line); padding: 8px 6px; text-align: left; }
th { color: var(--purple); }

.pick {
  background: var(--lav);
  padding: 14px 16px;
  margin: 12px 0;
  border-left: 3px solid var(--gold);
}

.faq dt { font-weight: 700; color: var(--purple); margin-top: 14px; font-family: "Segoe UI", "Microsoft YaHei", sans-serif; }
.faq dd { margin: 4px 0 0; color: var(--muted); }

footer {
  width: min(720px, calc(100% - 32px));
  margin: 0 auto 36px;
  color: var(--muted);
  font-size: 12.5px;
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  text-align: center;
  line-height: 1.7;
}
.safe { color: var(--purple); font-weight: 700; }

@media (max-width: 640px) {
  .article { padding: 22px 18px; }
  .article h1 { font-size: 22px; }
}