/* 第6套：选型驱动 · 四平台瓷砖 + 对照表 */
:root {
  --bg: #faf7ff;
  --ink: #1e1533;
  --violet: #5b21b6;
  --violet-l: #7c3aed;
  --card: #ffffff;
  --line: #e4d7fb;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Trebuchet MS", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
}
a { color: var(--violet); }
.head {
  background: #fff;
  box-shadow: 0 1px 0 var(--line);
  padding: 12px 0;
}
.head-inner { width: min(1120px, calc(100% - 32px)); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 8px; text-decoration: none; color: var(--violet); font-weight: 800; font-size: 20px; }
.nav a {
  text-decoration: none;
  color: #4c1d95;
  margin-left: 8px;
  padding: 8px 14px;
  border-radius: 999px;
}
.nav a.current { background: var(--violet); color: #fff; }
.page { width: min(1120px, calc(100% - 32px)); margin: 0 auto; padding: 32px 0 64px; }
.hero {
  background: linear-gradient(135deg, #5b21b6, #a78bfa);
  color: #fff;
  border-radius: 18px;
  padding: 36px 32px;
}
.hero h1 { margin: 0 0 12px; font-size: 30px; }
.hero .lead { color: #ede9fe; }
.chips span {
  display: inline-block;
  background: rgba(255,255,255,.16);
  padding: 4px 12px;
  border-radius: 999px;
  margin: 8px 8px 0 0;
  font-size: 13px;
}
.cta-row { margin-top: 18px; display: flex; gap: 10px; flex-wrap: wrap; }
.btn { background: #fff; color: var(--violet); text-decoration: none; padding: 11px 18px; border-radius: 999px; font-weight: 700; }
.btn-ghost { background: transparent; color: #fff; border: 1px solid #fff; }
.tiles {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin: 28px 0;
}
.tile {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
  min-height: 150px;
}
.tile h3 { margin: 0 0 8px; color: var(--violet); font-size: 18px; }
section { margin: 36px 0; }
section h2 { font-size: 22px; }
.decide {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  margin: 0 0 12px;
}
.decide .tag {
  background: #ede9fe;
  color: var(--violet);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}
table.pick { width: 100%; border-collapse: collapse; background: #fff; }
table.pick th, table.pick td { border: 1px solid var(--line); padding: 10px; }
table.pick th { background: #5b21b6; color: #fff; }
.faq .item { background: #fff; border: 1px dashed var(--violet-l); padding: 14px; margin: 0 0 10px; border-radius: 10px; }
.site-footer { background: #1e1533; color: #ddd6fe; padding: 24px 0; font-size: 13px; }
.site-footer .page { padding: 0; }
@media (max-width: 900px) {
  .tiles { grid-template-columns: 1fr 1fr; }
  .decide { grid-template-columns: 1fr; }
  .head-inner { flex-direction: column; gap: 10px; }
}
@media (max-width: 560px) { .tiles { grid-template-columns: 1fr; } }