/* 第3套：对比驱动 · 深色三栏卡片 · 炭黑/橙 */
:root {
  --bg: #121212;
  --panel: #1c1c1c;
  --orange: #e85d04;
  --text: #f3f1ee;
  --dim: #a39e96;
  --line: #333;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.72;
}
.top {
  text-align: center;
  padding: 32px 20px 12px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  text-decoration: none;
  font-size: 1.6rem;
  font-weight: 800;
}
nav {
  display: flex;
  justify-content: center;
  gap: 10px;
  padding: 16px 16px 8px;
  flex-wrap: wrap;
}
nav a {
  color: var(--dim);
  text-decoration: none;
  padding: 8px 18px;
  border-radius: 999px;
  border: 1px solid #2a2a2a;
  background: var(--panel);
}
nav a.current { color: #111; background: var(--orange); border-color: var(--orange); font-weight: 700; }
.hero {
  max-width: 880px;
  margin: 12px auto 8px;
  padding: 12px 24px 28px;
  text-align: center;
}
.hero h1 { font-size: 2rem; line-height: 1.3; margin: 0 0 16px; }
.hero .lead { color: var(--dim); }
.cta-row { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 22px;
  text-decoration: none;
  font-weight: 700;
  border-radius: 6px;
}
.btn-primary { background: var(--orange); color: #111; }
.btn-ghost { border: 1px solid #666; color: #fff; }
.page { max-width: 1100px; margin: 0 auto; padding: 10px 20px 56px; }
section { margin: 36px 0; }
h2 {
  font-size: 1.4rem;
  color: var(--orange);
  text-align: center;
  margin: 0 0 18px;
}
.tri {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
}
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 18px 16px;
  border-radius: 8px;
}
.card h3 { margin: 0 0 10px; font-size: 1.05rem; }
.compare { width: 100%; border-collapse: collapse; background: var(--panel); }
.compare th, .compare td { border: 1px solid var(--line); padding: 11px; text-align: left; }
.compare th { background: #2a1608; color: var(--orange); }
.note-mt5 {
  background: #2a1c0a;
  border: 1px solid var(--orange);
  padding: 14px 16px;
  border-radius: 6px;
  color: #ffd8a8;
}
.risk {
  background: #2a1212;
  border: 1px solid #7f1d1d;
  padding: 18px;
  border-radius: 8px;
}
.faq dt { color: var(--orange); font-weight: 700; margin-top: 16px; }
.faq dd { margin: 6px 0 0; color: #ddd; }
.site-footer {
  border-top: 1px solid #2c2c2c;
  padding: 28px 24px 40px;
  color: var(--dim);
  font-size: 0.86rem;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}
.unofficial { color: #ffb703; }
@media (max-width: 860px) {
  .tri { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.55rem; }
}