/* Set 1: centered classic, crimson band, square buttons, single-column then pairs */
:root {
  --ink: #1c1412;
  --muted: #5c534e;
  --line: #e4d9d4;
  --paper: #fffdfb;
  --band: #b42318;
  --band-dark: #8f1d14;
  --chip: #fff4f2;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.75;
  font-size: 16px;
}
img { max-width: 100%; }
a { color: var(--band); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { width: min(1080px, calc(100% - 32px)); margin: 0 auto; }
.site-header {
  background: #fff;
  border-bottom: 4px solid var(--band);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 16px;
}
.brand {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--ink);
}
.brand span { color: var(--band); }
.nav { display: flex; gap: 8px; flex-wrap: wrap; }
.nav a {
  padding: 8px 14px;
  color: var(--ink);
  font-weight: 600;
  border: 1px solid transparent;
}
.nav a.is-current {
  background: var(--chip);
  border-color: var(--band);
  color: var(--band);
  text-decoration: none;
}
.hero {
  background: linear-gradient(180deg, var(--band) 0%, var(--band-dark) 100%);
  color: #fff;
  padding: 56px 0 48px;
}
.hero h1 {
  margin: 0 0 16px;
  font-size: 34px;
  line-height: 1.3;
  max-width: 18em;
}
.hero p { margin: 0 0 18px; max-width: 42em; color: #ffe8e4; }
.hero-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0 24px;
}
.hero-tools b {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.28);
  padding: 8px 12px;
  font-weight: 600;
}
.hero-tools svg { width: 18px; height: 18px; fill: #fff; }
.btn-row { display: flex; flex-wrap: wrap; gap: 10px; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  background: #fff;
  color: var(--band-dark);
  font-weight: 700;
  border: 2px solid #fff;
  text-decoration: none !important;
}
.btn svg { width: 16px; height: 16px; fill: currentColor; }
.btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,.7);
}
.btn-ghost:hover { background: rgba(255,255,255,.12); }
.btn-win { background: #fff; }
.btn-mac, .btn-ios, .btn-and { background: #fff8f6; }
section { padding: 48px 0; }
section + section { border-top: 1px solid var(--line); }
h2 {
  margin: 0 0 14px;
  font-size: 24px;
  line-height: 1.35;
}
.lead { color: var(--muted); margin-top: 0; }
.pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.card {
  border: 1px solid var(--line);
  background: #fff;
  padding: 20px;
  border-left: 5px solid var(--band);
}
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); }
.steps { counter-reset: s; padding: 0; margin: 0; list-style: none; }
.steps li {
  counter-increment: s;
  margin: 0 0 14px;
  padding-left: 48px;
  position: relative;
}
.steps li::before {
  content: counter(s);
  position: absolute;
  left: 0; top: 0;
  width: 32px; height: 32px;
  background: var(--band);
  color: #fff;
  font-weight: 700;
  display: grid;
  place-items: center;
}
table.compare {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
}
table.compare th, table.compare td {
  border: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}
table.compare th { background: var(--chip); }
.news-list { margin: 0; padding: 0; list-style: none; }
.news-list li {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--line);
}
.news-list time { color: var(--band); font-weight: 700; }
.news-list h3 { margin: 0 0 6px; font-size: 16px; }
.news-list p { margin: 0; color: var(--muted); }
.faq details {
  border: 1px solid var(--line);
  background: #fff;
  margin: 0 0 8px;
  padding: 10px 14px;
}
.faq summary { cursor: pointer; font-weight: 700; }
.faq details p { color: var(--muted); }
.cta-band {
  background: var(--chip);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.site-footer {
  background: #2a1f1d;
  color: #efe6e3;
  padding: 28px 0 36px;
  font-size: 14px;
}
.site-footer p { margin: 0 0 10px; }
.site-footer .legal { color: #cbbdb8; }
@media (max-width: 800px) {
  .pair, .news-list li { grid-template-columns: 1fr; }
  .hero h1 { font-size: 26px; }
  .header-inner { flex-direction: column; align-items: flex-start; padding: 12px 0; }
}