:root {
  --forest: #1e3d2f;
  --gold: #c4a35a;
  --ivory: #faf6ee;
  --ink: #1b241f;
  --mute: #5a655e;
  --rule: #d9d0bc;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: Georgia, "Songti SC", "SimSun", serif;
  background: var(--ivory);
  color: var(--ink);
  line-height: 1.85;
}
.sans, nav, .cta, .kicker, .mast-meta, footer, summary {
  font-family: "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
}
a { color: var(--forest); }
.mast {
  text-align: center;
  padding: 28px 20px 18px;
  border-bottom: 1px solid var(--rule);
}
.mast .brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--forest);
  font-weight: 700;
  letter-spacing: 0.18em;
  font-size: 1.15rem;
}
.mast nav {
  margin-top: 14px;
  font-size: 0.92rem;
}
.mast nav a {
  text-decoration: none;
  color: var(--ink);
  margin: 0 10px;
}
.mast nav a[aria-current="page"] {
  color: var(--forest);
  border-bottom: 2px solid var(--gold);
  padding-bottom: 2px;
}
.hero {
  width: min(820px, calc(100% - 40px));
  margin: 0 auto;
  padding: 48px 0 20px;
}
.kicker {
  color: var(--gold);
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.hero h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  line-height: 1.28;
  font-weight: 600;
  margin-bottom: 18px;
}
.deck { font-size: 1.12rem; color: var(--mute); margin-bottom: 22px; }
.cta {
  display: inline-block;
  background: var(--forest);
  color: #fff;
  text-decoration: none;
  padding: 12px 26px;
  letter-spacing: 0.04em;
}
.mast-meta {
  display: flex;
  justify-content: center;
  gap: 28px;
  width: min(820px, calc(100% - 40px));
  margin: 12px auto 0;
  padding-bottom: 28px;
  border-bottom: 3px double var(--forest);
  font-size: 0.85rem;
  color: var(--mute);
}
.article {
  width: min(760px, calc(100% - 40px));
  margin: 0 auto;
  padding: 40px 0 72px;
}
.article h2 {
  font-size: 1.55rem;
  margin: 40px 0 14px;
  font-weight: 600;
}
.article p { margin-bottom: 14px; }
.compare {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0 22px;
  font-family: "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 0.95rem;
}
.compare th, .compare td {
  border: 1px solid var(--rule);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}
.compare th { background: var(--forest); color: #fff; }
.compare tr:nth-child(even) td { background: #fff; }
.pull {
  font-size: 1.25rem;
  line-height: 1.5;
  border-top: 1px solid var(--gold);
  border-bottom: 1px solid var(--gold);
  padding: 16px 8px;
  margin: 24px 0;
  color: var(--forest);
}
.faq-item {
  border-top: 1px solid var(--rule);
  padding: 12px 0;
}
.faq-item p { color: var(--mute); margin-top: 8px; }
footer {
  background: var(--forest);
  color: #dce6df;
  padding: 28px 20px 36px;
  font-size: 0.88rem;
}
.foot-box { width: min(760px, 100%); margin: 0 auto; }
.foot-box a { color: var(--gold); margin-right: 14px; }
.foot-box p { margin-top: 10px; }

@media (max-width: 640px) {
  .mast-meta { flex-direction: column; gap: 6px; align-items: center; }
  .hero h1 { font-size: 1.7rem; }
}