:root {
  --ink: #1c1c1c;
  --orange: #e85d04;
  --orange-d: #c24b02;
  --ash: #f2f2f0;
  --panel: #ffffff;
  --mid: #5a5a5a;
  --rule: #d4d4d0;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--ash);
  color: var(--ink);
  line-height: 1.72;
  font-size: 16px;
}
a { color: var(--orange-d); }
a:hover { color: var(--orange); }

.slim {
  background: var(--ink);
  color: #fff;
}
.slim-in {
  width: min(1000px, calc(100% - 28px));
  margin: 0 auto;
  min-height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.mark {
  color: #fff;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-decoration: none;
  font-size: 18px;
}
.tabs { display: flex; gap: 20px; }
.tabs a {
  color: #cfcfcf;
  text-decoration: none;
  font-size: 14px;
  padding: 18px 0 14px;
  border-bottom: 3px solid transparent;
}
.tabs a.is-on { color: #fff; border-bottom-color: var(--orange); }

.hero-versus {
  width: min(760px, calc(100% - 28px));
  margin: 40px auto 20px;
  text-align: center;
}
.hero-versus h1 { font-size: 30px; line-height: 1.4; margin-bottom: 14px; }
.hero-versus p { color: var(--mid); margin-bottom: 20px; }
.cta-row { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; }
.btn-or {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--orange);
  color: #fff;
  text-decoration: none;
  padding: 12px 22px;
  font-weight: 700;
}
.btn-or:hover { background: var(--orange-d); color: #fff; }
.btn-ghost-or {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 2px solid var(--ink);
  color: var(--ink);
  text-decoration: none;
  padding: 10px 20px;
  font-weight: 700;
}

.band {
  width: min(1000px, calc(100% - 28px));
  margin: 22px auto;
  background: var(--panel);
  padding: 26px 28px;
}
.band h2 {
  font-size: 22px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--orange);
}
.matrix {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
}
.matrix th, .matrix td {
  border: 1px solid var(--rule);
  padding: 11px 10px;
  text-align: left;
}
.matrix th { background: var(--ink); color: #fff; }
.matrix td.ok { color: #1b7a3a; font-weight: 700; }
.matrix td.no { color: #9a3a3a; }

.versus-pair {
  width: min(1000px, calc(100% - 28px));
  margin: 0 auto 22px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--panel);
}
.versus-pair article {
  padding: 24px 26px;
}
.versus-pair article + article { border-left: 1px solid var(--rule); }
.versus-pair h2 { font-size: 18px; margin-bottom: 10px; }
.versus-pair .tag {
  display: inline-block;
  background: var(--orange);
  color: #fff;
  font-size: 12px;
  padding: 2px 8px;
  margin-bottom: 8px;
}

.strength, .pick-when {
  width: min(1000px, calc(100% - 28px));
  margin: 0 auto 22px;
  background: var(--panel);
  padding: 26px 28px;
}
.strength h2, .pick-when h2 { font-size: 22px; margin-bottom: 12px; }
.pick-when ol { padding-left: 20px; }
.pick-when li { margin: 8px 0; }

.faq-stack {
  width: min(1000px, calc(100% - 28px));
  margin: 0 auto 48px;
}
.faq-stack h2 { font-size: 22px; margin-bottom: 12px; }
.q {
  background: var(--panel);
  padding: 16px 18px;
  margin-bottom: 8px;
  border-left: 6px solid var(--orange);
}
.q strong { display: block; margin-bottom: 6px; }

.foot-ink {
  background: var(--ink);
  color: #c8c8c8;
  padding: 22px 0;
  font-size: 13px;
}
.foot-ink .in { width: min(1000px, calc(100% - 28px)); margin: 0 auto; }
.foot-ink .tabs a { padding: 0; border: 0; color: #c8c8c8; }
.foot-ink .tabs a.is-on { color: var(--orange); }
.safe { color: #ffe1c7; margin: 10px 0; }

@media (max-width: 800px) {
  .versus-pair { grid-template-columns: 1fr; }
  .versus-pair article + article { border-left: 0; border-top: 1px solid var(--rule); }
  .hero-versus h1 { font-size: 24px; }
  .slim-in { flex-direction: column; padding: 8px 0; }
}