:root {
  --bg: #f2faf9;
  --panel: #ffffff;
  --ink: #12332f;
  --sub: #3d5f5a;
  --teal: #0d7377;
  --teal-2: #14919b;
  --mint: #b7e4c7;
  --line: #c5ddd9;
  --dark: #082c2e;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.8 "Georgia", "Songti SC", "SimSun", "Microsoft YaHei", serif;
}

a { color: var(--teal); }
a:hover { color: #095c5f; }

.topbar {
  background: var(--dark);
  color: #dff6f4;
  padding: 10px 0;
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  font-size: 14px;
}
.topbar-inner, .bar-inner, .shell, .foot-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}
.topbar-inner { display: flex; justify-content: space-between; }

.bar {
  background: var(--panel);
  border-bottom: 3px solid var(--teal);
}
.bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 74px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--dark);
  text-decoration: none;
  font-weight: 700;
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  font-size: 20px;
}
.menu { display: flex; gap: 4px; font-family: "Segoe UI", "Microsoft YaHei", sans-serif; }
.menu a {
  padding: 8px 16px;
  text-decoration: none;
  color: var(--ink);
  border-radius: 999px;
}
.menu a.current { background: var(--teal); color: #fff; }

.hero-scene {
  padding: 42px 0 10px;
}
.hero-scene h1 {
  font-size: 34px;
  line-height: 1.25;
  margin: 0 0 12px;
}
.kicker {
  display: inline-block;
  background: var(--mint);
  color: #14532d;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 13px;
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  margin-bottom: 10px;
}

.shell {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 28px;
  align-items: start;
  padding: 12px 0 48px;
}
article section {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 26px 28px;
  margin-bottom: 18px;
}
article h2 { margin: 0 0 12px; font-size: 23px; }
article p { margin: 0 0 12px; }
article ul { margin: 0 0 12px; padding-left: 20px; }

.scene-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.scene-card {
  background: #e7f6f4;
  border-radius: 10px;
  padding: 16px;
}
.scene-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
}

.dock {
  position: sticky;
  top: 16px;
  background: var(--dark);
  color: #e7fffb;
  border-radius: 14px;
  padding: 20px;
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
}
.dock h2 { margin: 0 0 8px; font-size: 18px; color: #fff; }
.dock p { color: #b7d8d4; font-size: 14px; }
.dock a.act {
  display: block;
  text-align: center;
  text-decoration: none;
  margin-top: 10px;
  padding: 11px 12px;
  border-radius: 8px;
  font-weight: 700;
}
.act-win { background: #2dd4bf; color: #083344; }
.act-mac { background: #111; color: #fff; }
.act-ios { background: #334155; color: #fff; }
.act-and { background: #15803d; color: #fff; }
.act-more { background: transparent; color: #99f6e4; border: 1px dashed #2dd4bf; }

.faq dt { font-weight: 700; margin-top: 14px; }
.faq dd { margin: 6px 0 0; color: var(--sub); }

.site-foot {
  background: var(--dark);
  color: #b7d8d4;
  padding: 28px 0;
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  font-size: 14px;
}
.site-foot a { color: #5eead4; margin-right: 14px; }
.ok { color: #86efac; }

@media (max-width: 920px) {
  .shell { grid-template-columns: 1fr; }
  .dock { position: static; }
  .scene-grid { grid-template-columns: 1fr; }
  .bar-inner { flex-direction: column; padding: 12px 0; }
}